GIT 742d25b819f11dce91b89e6c9ac17402a119f20a git+ssh://master.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git commit Author: Brian King Date: Tue May 29 15:46:14 2007 -0500 [SCSI] ibmvscsi: Changeable queue depth Adds support for a changeable queue depth to ibmvscsi. Signed-off-by: Brian King Signed-off-by: James Bottomley commit d5587d5dcd275338af21627a3e931a77a6c04b8d Author: FUJITA Tomonori Date: Sat May 26 10:01:24 2007 +0900 [SCSI] stex: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Acked-by: Ed Lin Signed-off-by: James Bottomley commit 5f7186c841a13abff0bf81ee93754b4f46e19141 Author: FUJITA Tomonori Date: Sat May 26 14:08:20 2007 +0900 [SCSI] qla4xxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Acked-by: David C Somayajulu Signed-off-by: James Bottomley commit 1928d73fac9a38be901dd5c9eb8b18b56ce9e18d Author: FUJITA Tomonori Date: Sat May 26 00:37:15 2007 +0900 [SCSI] fusion: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. TODO: use scsi_for_each_sg(). Signed-off-by: FUJITA Tomonori Acked-by: Eric Moore Signed-off-by: James Bottomley commit 63015bc9333907725f90a1691d0ade44e51cdcbf Author: FUJITA Tomonori Date: Sat May 26 00:26:59 2007 +0900 [SCSI] ipr: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Acked-by: Brian King Signed-off-by: James Bottomley commit c13e5566471d90ff2858f5cacaf27021d158e037 Author: FUJITA Tomonori Date: Sat May 26 02:46:37 2007 +0900 [SCSI] libsas: convert to use the data buffer accessors - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Acked-by: Darrick J. Wong Signed-off-by: James Bottomley commit 41ce639a1c50cb936f058f52f99f65740e3f550e Author: FUJITA Tomonori Date: Sat May 26 02:45:17 2007 +0900 [SCSI] cciss: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Acked-by: Mike Miller Signed-off-by: James Bottomley commit fb119935e11b98230f20c500e9f9125ddf0f3a4d Author: Eric Sesterhenn Date: Wed May 23 14:41:36 2007 -0700 [SCSI] sg: remove unnecessary check coverity spotted this (cid #758). All callers dereference sfp, so we dont need this check. In addition to this, we dereference it earlier in the function. Signed-off-by: Eric Sesterhenn Acked-by: Douglas Gilbert Signed-off-by: Andrew Morton Signed-off-by: James Bottomley commit deff2627cda995c926788fd9192337ec3febe7b5 Author: FUJITA Tomonori Date: Mon May 14 19:25:56 2007 +0900 [SCSI] arcmsr: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Acked-by: Nick Cheng Signed-off-by: James Bottomley commit 22c1a6600af920f4fef6d5cc51a8f04b58e9db83 Author: FUJITA Tomonori Date: Sat May 26 02:03:36 2007 +0900 [SCSI] aic7xxx_old: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Acked-by: Doug Ledford Signed-off-by: James Bottomley commit 85289f2efa108d1586a86d0c426ffc9d641bbdc2 Author: FUJITA Tomonori Date: Sat May 26 02:41:54 2007 +0900 [SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: Guennadi Liakhovetski Signed-off-by: James Bottomley commit 70c8d897763e19405a160de729e62a0e727150d2 Author: Adrian Bunk Date: Wed May 23 14:41:35 2007 -0700 [SCSI] advansys: cleanups - remove the unneeded advansys.h - remove the unused advansys_setup() - make needlessly global functions static Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Acked-by: Christoph Hellwig Signed-off-by: James Bottomley commit d7dea2cf80f0c9eea795b4012e4c86205dda9882 Author: FUJITA Tomonori Date: Mon May 14 20:00:04 2007 +0900 [SCSI] sbp2: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: Stefan Richter Signed-off-by: James Bottomley commit 6cad75a61d802c5f4f4299103b8f95aeb3ee9876 Author: Jeff Garzik Date: Sun May 27 08:52:12 2007 -0400 [SCSI] fdomain: fix PCMCIA-related warnings fdomain is one of those drivers that is compiled twice, once for PCMCIA and once for non-PCMCIA. The resultant two-driver setup leaves a bit of dead code and data in the non-PCMCIA case, which gcc complains about. Shuffle ifdefs a bit to eliminate the conditionally-dead code, and the compiler warnings. Signed-off-by: Jeff Garzik Signed-off-by: James Bottomley commit 565bae6a4a8f16459e179ebf4421c1291cf88aa5 Author: Christoph Hellwig Date: Fri May 11 16:30:29 2007 +0200 [SCSI] 53c7xx: kill driver It's been more than enough time now to try to get the new m68k drivers into the tree. Let's remove the old ones and we can remerge the new glue once it's ready. Given that there are patches to rename two out of the three drivers in m68k CVS and all of them need a lot of codingstyle love anyway that's probably the better strategy to begin with. Signed-off-by: Christoph Hellwig Cc: Geert Uytterhoeven Cc: Kars de Jong Cc: linux-m68k@vger.kernel.org Signed-off-by: James Bottomley commit ddc914c741c1374dbb5fa288b5e283060c2a8488 Author: FUJITA Tomonori Date: Mon May 14 15:43:56 2007 +0900 [SCSI] BusLogic: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit bc1ebfba1a3a27122462fd342d11216e3faea53f Author: FUJITA Tomonori Date: Mon May 14 19:24:01 2007 +0900 [SCSI] qlogicfas408: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit fea97f9ab26a17c29eadc102c04b88776d6262d4 Author: FUJITA Tomonori Date: Mon May 14 19:24:58 2007 +0900 [SCSI] u14-34f: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit d17867135639bec1bce5b38d29e6fa4cfea050ea Author: FUJITA Tomonori Date: Mon May 14 19:26:29 2007 +0900 [SCSI] ultrastor: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit e7d6cf55ea47684b704d67a6046044c29bad4824 Author: FUJITA Tomonori Date: Mon May 14 19:27:06 2007 +0900 [SCSI] wd7000: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 58e2a02eb18393e76a469580fedf7caec190eb5e Author: FUJITA Tomonori Date: Mon May 14 20:21:16 2007 +0900 [SCSI] eata: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit a258c85d0866d93b0c76e60fe236b6483a0d5680 Author: FUJITA Tomonori Date: Mon May 21 14:58:30 2007 +0900 [SCSI] initio: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit c66cc13c16377d177d8887f15a3cc42ab3866f57 Author: FUJITA Tomonori Date: Mon May 14 20:26:06 2007 +0900 [SCSI] aha1740: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 985c0a7277760512c65bda2eb12c1c7213233eeb Author: FUJITA Tomonori Date: Mon May 14 20:26:37 2007 +0900 [SCSI] a100u2w: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit e1eaf460098e4fd168908af4e6951f921951e916 Author: FUJITA Tomonori Date: Mon May 14 20:27:00 2007 +0900 [SCSI] fdomain: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 9482ef855ef42acb8259f95296b1e93bfb474e74 Author: FUJITA Tomonori Date: Wed May 16 05:34:05 2007 +0900 [SCSI] sym53c500_cs: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 772a5c3f3bbc7749971a3dd4ff35cd77a9e12201 Author: FUJITA Tomonori Date: Wed May 16 06:44:34 2007 +0900 [SCSI] sym53c416: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 03cde46b6bd74672bcb88a2f155aa3e3b6ff4fa1 Author: FUJITA Tomonori Date: Wed May 16 07:01:23 2007 +0900 [SCSI] NCR53c406a: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 646158c203ae8e76a44bb38634fc82f2da041824 Author: FUJITA Tomonori Date: Sat May 26 12:46:30 2007 +0900 [SCSI] mac53c94: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 5f60ef6ac7b6338ec9e82a0900185d554f476243 Author: FUJITA Tomonori Date: Mon May 21 15:10:00 2007 +0900 [SCSI] ibmmca: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 4c688fc7df61874997be4588c889e2248c4ca195 Author: FUJITA Tomonori Date: Sat May 26 02:02:34 2007 +0900 [SCSI] aic79xx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 3a57c4a5aaee8d9d61b05d95d96f3fc4068b0518 Author: FUJITA Tomonori Date: Sat May 26 01:55:14 2007 +0900 [SCSI] aic7xxx: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 3258a4d5690880a62121553b604893ecaca7d042 Author: FUJITA Tomonori Date: Mon May 14 19:12:55 2007 +0900 [SCSI] 53c700: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Jens Axboe did the for_each_sg cleanup. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 824d7b570b4dec49e868c251d670941b02a1e489 Author: FUJITA Tomonori Date: Sat May 26 14:04:03 2007 +0900 [SCSI] scsi_lib: add scatter/gather data buffer accessors This adds a set of accessors for the scsi data buffer. This is in preparation for chaining sg lists and bidirectional requests (and possibly, the mid-layer dma mapping). Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley commit 9ef3e4a4527e1f65b8776287c6d4fd1fca5ba98f Author: James Smart Date: Thu May 24 19:04:44 2007 -0400 [SCSI] fc_transport: fix sysfs deadlock on vport delete When the vport attribute "delete" is used to delete the vport, sysfs deadlocks waiting for the write to complete, which is waiting for the sysfs teardown to complete. Moved this effort to a work_q element. Took the opportunity to make some other cosmetic changes: - removed tabs in Doc file - replaced with expanded spaces - minor copyright text and author text updates - removed a bunch of trailing whitespace Signed-off-by: James Smart Signed-off-by: James Bottomley commit bee4fe8e63ea1985f3955323dbc98b6d6bd5c6f8 Author: David C Somayajulu Date: Wed May 23 18:03:32 2007 -0700 [SCSI] qla4xxx: ql4_os.c bugfixes Free memory resources after invoking free_irq() in qla4xxx_free_adapter(). QLA4xxx has two pci functions per port (Ethernet and iSCSI). When one of these PCI functions issues a HBA reset, all other functions are notified and need to acknowledge and re-initialize. During module qla4xxx_remove_adapter() gets invoked. This function needs to wait if it is currently responding to a reset from another function. Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit c0e344c9b7971996e4fe409d7b8ba9ceb7b7583d Author: David C Somayajulu Date: Wed May 23 18:03:27 2007 -0700 [SCSI] qla4xxx: ql4_mbx.c remove dead code bugfixes All all inbound mbx registers for all mbx commands. Remove dead code. Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit 401425b1ea005b39dcc544bffea833f338ba84f6 Author: David C Somayajulu Date: Wed May 23 18:03:20 2007 -0700 [SCSI] qla4xxx: ql4_isr.c support for new mbx cmds Add support to log all AENs and service mbx cmd completions for QLA4032 Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit e08c182cba87180d7c1e7530dd690a5f6894c412 Author: David C Somayajulu Date: Wed May 23 18:14:34 2007 -0700 [SCSI] qla4xxx: update rev num and misc cleanup Clean up and update version number Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit 92b7273608da2c681f54fd36d182a582673ed260 Author: David C Somayajulu Date: Wed May 23 17:55:40 2007 -0700 [SCSI] qla4xxx: ql4_init.c bugfixes In qla4xxx_get_ddb_entry() and qla4xxx_add_device_dynamically() differentiate between a target which has been newly added vs a target which went offline temporarily and is online again. In qla4xxx_build_ddb_list() firmware ddb state needs to be updated by calling qla4xxx_get_ddb_entry(). Fix qla4x00_pci_config() and clean up code. Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit b2854316574d1fa2f1b85ad336d4a88aee5dd140 Author: David C Somayajulu Date: Wed May 23 17:52:26 2007 -0700 [SCSI] qla4xxx: ql4_fw.h add support for qla4032 Add support for QLA4032 which supports IPv6 Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit 5c8bfc9449b64b3726262bcaa914eeeafdd47ed3 Author: David C Somayajulu Date: Wed May 23 17:50:55 2007 -0700 [SCSI] qla4xxx: ql4_def.h log all AENs and cleanup Add support for logging all AENs and clean up Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit 0187106664e1bbc1a17398e6125b8206d6c7079d Author: David C Somayajulu Date: Wed May 23 17:46:00 2007 -0700 [SCSI] qla4xxx: ql4_dbg.c remove dead code Remove dead code Signed-off-by: David Somayajulu Signed-off-by: Mike Christie Signed-off-by: James Bottomley commit de5952e91caf41bd838a787c7b9b6ca2e1292484 Author: Martin Bligh Date: Wed May 23 16:11:46 2007 -0700 [SCSI] megaraid: fix compiler warnings The user ioctl mailbox can only support a 32 bit address for the commands structure. This is fine, since the area it's pointing to is allocated with pci_alloc_consistent(), so it should be physically < 4GB. Thus kill the ptr to u32 conversion warnings on 64 bit. Signed-off-by: Martin J. Bligh Signed-off-by: Andrew Morton Acked-by: "Patro, Sumant" Signed-off-by: James Bottomley commit c6a6c81cfdd0f9b95bf215d1b5626f4dbf1aba7d Author: Adrian Bunk Date: Wed May 23 14:41:46 2007 -0700 [SCSI] ips: remove kernel 2.4 code Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Acked-by: "Salyzyn, Mark" Signed-off-by: James Bottomley commit 6a31a8a651c1d671afc2438cbecb3ee3d610fac8 Author: Adrian Bunk Date: Wed May 23 14:41:46 2007 -0700 [SCSI] nsp32: remove kernel 2.4 code Signed-off-by: Adrian Bunk Acked-by: GOTO Masanori Signed-off-by: Andrew Morton Signed-off-by: James Bottomley commit 702809ce9b1e91400826ec2ff203c06fdad36034 Author: Andrew Morton Date: Wed May 23 14:41:56 2007 -0700 [SCSI] ncr5380 warning fixes squish these: drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used drivers/scsi/NCR5380.c:633: warning: 'NCR5380_print_options' defined but not used drivers/scsi/NCR5380.c:708: warning: 'NCR5380_proc_info' defined but not used drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used drivers/scsi/NCR5380.c:579: warning: 'NCR5380_probe_irq' defined but not used drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used drivers/scsi/NCR5380.c:708: warning: 'notyet_generic_proc_info' defined but not used drivers/scsi/NCR5380.c:708: warning: 'notyet_generic_proc_info' defined but not used Signed-off-by: Andrew Morton Signed-off-by: James Bottomley commit 476834c25a04025d895f64d42affcd31bfb318cc Author: Jeff Garzik Date: Wed May 23 14:41:44 2007 -0700 [SCSI] aacraid,qla2xxx: use irq_handler_t where appropriate Signed-off-by: Jeff Garzik Signed-off-by: Andrew Morton Acked-by: "Salyzyn, Mark" Acked-by: Andrew Vasquez Signed-off-by: James Bottomley commit 730a646ddfea239aa9f6b732d5c10118f6801bc1 Author: Amol Lad Date: Wed May 23 14:41:37 2007 -0700 [SCSI] NCR5380: Replace yield() with a better alternative Replaced yield() with cond_resched() Signed-off-by: Amol Lad Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: James Bottomley commit 355dfa1bc8026d185678fed4e409719a595b2d39 Author: James Bottomley Date: Tue May 22 14:43:14 2007 -0500 [SCSI] scsi_error: send the sense buffer down without copying Now that the block submission path correctly bounces, we can simply use the command sense_buffer to send to retrieve sense information and junk the unnecessary page allocation. Signed-off-by: James Bottomley commit a6123f142924a5e21f6d48e6e3c67d9060726caa Author: Bernhard Walle Date: Mon May 21 17:15:26 2007 +0200 [SCSI] sd: remove __GFP_DMA After 821de3a27bf33f11ec878562577c586cd5f83c64, it's not necessary to alloate a DMA buffer any more in sd.c. Signed-off-by: Bernhard Walle Signed-off-by: James Bottomley commit 352e921f0dd42f79652cdb50dd91122d068d7209 Author: Thomas Bogendoerfer Date: Tue May 22 10:13:19 2007 +0200 [SCSI] jazz_esp: converted to use esp_core Use new esp_scsi for JAZZ SCSI host adapter driver Signed-off-by: Thomas Bogendoerfer Signed-off-by: James Bottomley commit 72d39fea9017bbb1407620bf89dfe8d1fb658e35 Author: Alan Cox Date: Mon May 21 15:06:43 2007 +0100 [SCSI] initio: Convert into a real Linux driver and update to modern style This is a mix of a grand clean up I did and a reworking of the hotplug support by Christoph. In testing it works as well as the previous code did (that is -quite badly-) but we can now read it and as it settles in actually debug the long standing problems it shares with the old driver. Signed-off-by: Alan Cox From Christoph: removal of the BSD license is also fine with me, but should really get a mention in the changelog aswell. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley commit 9d399cc7feac3faf66768566e04e16c750aad25f Author: Salyzyn, Mark Date: Fri May 18 14:51:34 2007 -0400 [SCSI] aacraid: add support for FUA Back in the beginning of last year we disabled mode page 8 and mode page 3f requests through device quirk bits instead of enhancing the driver to respond to these mode pages because there was no apparent added value. The Firmware that supports the new communication commands supports the ability to force a write around of the adapter cache on a command by command basis. In the attached patch we enable mode page 8 and 3f and spoof the results as needed in order to *convince* the layers above to submit writes with the FUA (Force Unit Attention) bit set if the file system or application requires it, if the Firmware supports the write through, or instead to submit a SYNCHRONIZE_CACHE if the Firmware does not. The added value here is for file systems that benefit from this functionality and for clustering or redundancy scenarios. Caveats: By convince, we are responding with a minimal short 3 byte content mode page 8, with only the data the SCSI layer needs and that we can fill confidently. Applications that require the customarily larger mode page 8 results may be confused by this(?). The FUA, or the SYNCHRONIZE_CACHE only affect the cache on the controller. Our firmware by default ensure that the underlying physical drives of the array have their cache turned off so normally this is not a problem. This attached patch is against current scsi-misc-2.6 and was unit tested on RHEL5. Since this is a feature enhancement, it should not be considered for any current stabilization efforts. Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley commit 0f06bb34f2dcd0c72aac7777995ef7cb733496e8 Author: Christoph Hellwig Date: Sun May 13 17:52:12 2007 +0200 [SCSI] aha152x: use wait_for_completion_timeout Use wait_for_completion_timeout instead a semaphore + timer. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley commit 1dfcda06a67d6ad6f890dbd1bab84be5f17ef46d Author: Tejun Heo Date: Wed Mar 21 16:05:16 2007 +0900 [SCSI] kill scsi host template suspend/resume With libata converted to use sdev->manage_start_stop for suspend and resume, sht->suspend/resume() has no user left and low level suspend/ressume should be taken care of by low level driver's suspend/resume callbacks (e.g. PCI or PCMCIA driver callbacks). This patch removes sht->suspend/resume() callbacks. This change is suggested by Christoph Hellwig. Signed-off-by: Tejun Heo Cc: Christoph Hellwig Signed-off-by: James Bottomley commit 67b2009ae26ece6a54d0b689827903f53d6d21e6 Author: James Bottomley Date: Thu May 3 11:13:08 2007 -0500 [SCSI] ibmmca: convert to new probing API and fix oopses This is basically a straight conversion. I have one of these things, so I know it works ... my problem is that it has a wierd SCA like connector, so I can't connect anything to it (no cables). However, previously it panic'd in the interrupt, now it completes a bus scan. Signed-off-by: James Bottomley commit a53eb5e060c0ec7245c8f93b9dcd94afa6041e06 Author: James Smart Date: Fri Apr 27 12:41:09 2007 -0400 [SCSI] FC Transport support for vports based on NPIV This patch provides support for FC virtual ports based on NPIV. For information on the interfaces and design, please read the Documentation/scsi/scsi_fc_transport.txt file enclosed within the patch. The RFC was originally posted here: http://marc.info/?l=linux-scsi&m=117226959918393&w=2 Changes from the initial RFC: - Bug fix: needed a transport_class_unregister() for the vport class - Create a symlink to the vport in the shost device if it is not the parent of the vport. - Made symbolic name writable so it can be set after creation - Made the temporary fc_vport_identifiers struct private to the transport. - Deleted the vport_id field from the vport. I couldn't find any good use for it (and symname is a good replacement). - Made the vport_state and vport_last_state "private" attributes. Added the fc_vport_set_state() helper function to manage state transitions - Updated vport_create() to allow a vport to be created in a disabled state. - Added INITIALIZING and FAILED vport states - Added VPCERR_xxx defines for errors to be returned from vport_create() - Created a Documentation/scsi/scsi_fc_transport.txt file that describes the interfaces and expected LLDD behaviors. Signed-off-by: James Smart Signed-off-by: James Bottomley Documentation/scsi/scsi_fc_transport.txt | 450 ++ drivers/block/cciss_scsi.c | 75 drivers/ieee1394/sbp2.c | 75 drivers/message/fusion/mptscsih.c | 78 drivers/scsi/53c700.c | 55 drivers/scsi/53c7xx.c | 6102 ------------------------------ drivers/scsi/53c7xx.h | 1608 -------- drivers/scsi/53c7xx.scr | 1591 -------- drivers/scsi/53c7xx_d.h_shipped | 2874 -------------- drivers/scsi/53c7xx_u.h_shipped | 102 - drivers/scsi/BusLogic.c | 51 drivers/scsi/Kconfig | 2 drivers/scsi/Makefile | 12 drivers/scsi/NCR5380.c | 14 drivers/scsi/NCR5380.h | 6 drivers/scsi/NCR53c406a.c | 45 drivers/scsi/a100u2w.c | 50 drivers/scsi/aacraid/aachba.c | 62 drivers/scsi/aacraid/aacraid.h | 11 drivers/scsi/aacraid/linit.c | 4 drivers/scsi/advansys.c | 101 drivers/scsi/advansys.h | 36 drivers/scsi/aha152x.c | 50 drivers/scsi/aha1740.c | 48 drivers/scsi/aic7xxx/aic79xx_osm.c | 51 drivers/scsi/aic7xxx/aic79xx_osm.h | 4 drivers/scsi/aic7xxx/aic7xxx_osm.c | 59 drivers/scsi/aic7xxx/aic7xxx_osm.h | 4 drivers/scsi/aic7xxx_old.c | 55 drivers/scsi/amiga7xx.c | 138 - drivers/scsi/amiga7xx.h | 23 drivers/scsi/arcmsr/arcmsr_hba.c | 103 - drivers/scsi/bvme6000.c | 76 drivers/scsi/bvme6000.h | 24 drivers/scsi/eata.c | 48 drivers/scsi/fdomain.c | 70 drivers/scsi/ibmmca.c | 1267 +++--- drivers/scsi/ibmmca.h | 21 drivers/scsi/ibmvscsi/ibmvscsi.c | 18 drivers/scsi/ibmvscsi/ibmvscsi.h | 1 drivers/scsi/initio.c | 3819 +++++++++---------- drivers/scsi/initio.h | 313 +- drivers/scsi/ipr.c | 144 - drivers/scsi/ips.c | 145 - drivers/scsi/ips.h | 44 drivers/scsi/jazz_esp.c | 4 drivers/scsi/libsas/sas_scsi_host.c | 10 drivers/scsi/mac53c94.c | 62 drivers/scsi/megaraid.c | 10 drivers/scsi/mvme16x.c | 78 drivers/scsi/mvme16x.h | 24 drivers/scsi/nsp32.c | 109 - drivers/scsi/pcmcia/sym53c500_cs.c | 42 drivers/scsi/qla2xxx/qla_isr.c | 2 drivers/scsi/qla4xxx/ql4_dbg.c | 174 - drivers/scsi/qla4xxx/ql4_def.h | 78 drivers/scsi/qla4xxx/ql4_fw.h | 426 +- drivers/scsi/qla4xxx/ql4_glbl.h | 7 drivers/scsi/qla4xxx/ql4_init.c | 92 drivers/scsi/qla4xxx/ql4_iocb.c | 101 drivers/scsi/qla4xxx/ql4_isr.c | 63 drivers/scsi/qla4xxx/ql4_mbx.c | 274 + drivers/scsi/qla4xxx/ql4_nvram.c | 3 drivers/scsi/qla4xxx/ql4_os.c | 26 drivers/scsi/qla4xxx/ql4_version.h | 3 drivers/scsi/qlogicfas408.c | 30 drivers/scsi/scsi_error.c | 26 drivers/scsi/scsi_lib.c | 38 drivers/scsi/scsi_sysfs.c | 25 drivers/scsi/scsi_transport_fc.c | 828 ++++ drivers/scsi/sd.c | 2 drivers/scsi/sg.c | 2 drivers/scsi/stex.c | 109 - drivers/scsi/sym53c416.c | 44 drivers/scsi/tmscsim.c | 59 drivers/scsi/u14-34f.c | 60 drivers/scsi/ultrastor.c | 19 drivers/scsi/wd7000.c | 20 include/scsi/scsi_cmnd.h | 20 include/scsi/scsi_host.h | 6 include/scsi/scsi_transport_fc.h | 186 + 81 files changed, 5140 insertions(+), 17851 deletions(-) diff --git a/Documentation/scsi/scsi_fc_transport.txt b/Documentation/scsi/scsi_fc_transport.txt new file mode 100644 index 0000000..d403e46 --- /dev/null +++ b/Documentation/scsi/scsi_fc_transport.txt @@ -0,0 +1,450 @@ + SCSI FC Tansport + ============================================= + +Date: 4/12/2007 +Kernel Revisions for features: + rports : <> + vports : 2.6.22 (? TBD) + + +Introduction +============ +This file documents the features and components of the SCSI FC Transport. +It also provides documents the API between the transport and FC LLDDs. +The FC transport can be found at: + drivers/scsi/scsi_transport_fc.c + include/scsi/scsi_transport_fc.h + include/scsi/scsi_netlink_fc.h + +This file is found at Documentation/scsi/scsi_fc_transport.txt + + +FC Remote Ports (rports) +======================================================================== +<< To Be Supplied >> + + +FC Virtual Ports (vports) +======================================================================== + +Overview: +------------------------------- + + New FC standards have defined mechanisms which allows for a single physical + port to appear on as multiple communication ports. Using the N_Port Id + Virtualization (NPIV) mechanism, a point-to-point connection to a Fabric + can be assigned more than 1 N_Port_ID. Each N_Port_ID appears as a + separate port to other endpoints on the fabric, even though it shares one + physical link to the switch for communication. Each N_Port_ID can have a + unique view of the fabric based on fabric zoning and array lun-masking + (just like a normal non-NPIV adapter). Using the Virtual Fabric (VF) + mechanism, adding a fabric header to each frame allows the port to + interact with the Fabric Port to join multiple fabrics. The port will + obtain an N_Port_ID on each fabric it joins. Each fabric will have its + own unique view of endpoints and configuration parameters. NPIV may be + used together with VF so that the port can obtain multiple N_Port_IDs + on each virtual fabric. + + The FC transport is now recognizing a new object - a vport. A vport is + an entity that has a world-wide unique World Wide Port Name (wwpn) and + World Wide Node Name (wwnn). The transport also allows for the FC4's to + be specified for the vport, with FCP_Initiator being the primary role + expected. Once instantiated by one of the above methods, it will have a + distinct N_Port_ID and view of fabric endpoints and storage entities. + The fc_host associated with the physical adapter will export the ability + to create vports. The transport will create the vport object within the + Linux device tree, and instruct the fc_host's driver to instantiate the + virtual port. Typically, the driver will create a new scsi_host instance + on the vport, resulting in a unique namespace for the vport. + Thus, whether a FC port is based on a physical port or on a virtual port, + each will appear as a unique scsi_host with its own target and lun space. + + Note: At this time, the transport is written to create only NPIV-based + vports. However, consideration was given to VF-based vports and it + should be a minor change to add support if needed. The remaining + discussion will concentrate on NPIV. + + Note: World Wide Name assignment (and uniqueness guarantees) are left + up to an administrative entity controling the vport. For example, + if vports are to be associated with virtual machines, a XEN mgmt + utility would be responsible for creating wwpn/wwnn's for the vport, + using it's own naming authority and OUI. (Note: it already does this + for virtual MAC addresses). + + +Device Trees and Vport Objects: +------------------------------- + + Today, the device tree typically contains the scsi_host object, + with rports and scsi target objects underneath it. Currently the FC + transport creates the vport object and places it under the scsi_host + object corresponding to the physical adapter. The LLDD will allocate + a new scsi_host for the vport and link it's object under the vport. + The remainder of the tree under the vports scsi_host is the same + as the non-NPIV case. The transport is written currently to easily + allow the parent of the vport to be something other than the scsi_host. + This could be used in the future to link the object onto a vm-specific + device tree. If the vport's parent is not the physical port's scsi_host, + a symbolic link to the vport object will be placed in the physical + port's scsi_host. + + Here's what to expect in the device tree : + The typical Physical Port's Scsi_Host: + /sys/devices/.../host17/ + and it has the typical decendent tree: + /sys/devices/.../host17/rport-17:0-0/target17:0:0/17:0:0:0: + and then the vport is created on the Physical Port: + /sys/devices/.../host17/vport-17:0-0 + and the vport's Scsi_Host is then created: + /sys/devices/.../host17/vport-17:0-0/host18 + and then the rest of the tree progresses, such as: + /sys/devices/.../host17/vport-17:0-0/host18/rport-18:0-0/target18:0:0/18:0:0:0: + + Here's what to expect in the sysfs tree : + scsi_hosts: + /sys/class/scsi_host/host17 physical port's scsi_host + /sys/class/scsi_host/host18 vport's scsi_host + fc_hosts: + /sys/class/fc_host/host17 physical port's fc_host + /sys/class/fc_host/host18 vport's fc_host + fc_vports: + /sys/class/fc_vports/vport-17:0-0 the vport's fc_vport + fc_rports: + /sys/class/fc_remote_ports/rport-17:0-0 rport on the physical port + /sys/class/fc_remote_ports/rport-18:0-0 rport on the vport + + +Vport Attributes: +------------------------------- + + The new fc_vport class object has the following attributes + + node_name: Read_Only + The WWNN of the vport + + port_name: Read_Only + The WWPN of the vport + + roles: Read_Only + Indicates the FC4 roles enabled on the vport. + + symbolic_name: Read_Write + A string, appended to the driver's symbolic port name string, which + is registered with the switch to identify the vport. For example, + a hypervisor could set this string to "Xen Domain 2 VM 5 Vport 2", + and this set of identifiers can be seen on switch management screens + to identify the port. + + vport_delete: Write_Only + When written with a "1", will tear down the vport. + + vport_disable: Write_Only + When written with a "1", will transition the vport to a disabled. + state. The vport will still be instantiated with the Linux kernel, + but it will not be active on the FC link. + When written with a "0", will enable the vport. + + vport_last_state: Read_Only + Indicates the previous state of the vport. See the section below on + "Vport States". + + vport_state: Read_Only + Indicates the state of the vport. See the section below on + "Vport States". + + vport_type: Read_Only + Reflects the FC mechanism used to create the virtual port. + Only NPIV is supported currently. + + + For the fc_host class object, the following attributes are added for vports: + + max_npiv_vports: Read_Only + Indicates the maximum number of NPIV-based vports that the + driver/adapter can support on the fc_host. + + npiv_vports_inuse: Read_Only + Indicates how many NPIV-based vports have been instantiated on the + fc_host. + + vport_create: Write_Only + A "simple" create interface to instantiate a vport on an fc_host. + A ":" string is written to the attribute. The transport + then instantiates the vport object and calls the LLDD to create the + vport with the role of FCP_Initiator. Each WWN is specified as 16 + hex characters and may *not* contain any prefixes (e.g. 0x, x, etc). + + vport_delete: Write_Only + A "simple" delete interface to teardown a vport. A ":" + string is written to the attribute. The transport will locate the + vport on the fc_host with the same WWNs and tear it down. Each WWN + is specified as 16 hex characters and may *not* contain any prefixes + (e.g. 0x, x, etc). + + +Vport States: +------------------------------- + + Vport instantiation consists of two parts: + - Creation with the kernel and LLDD. This means all transport and + driver data structures are built up, and device objects created. + This is equivalent to a driver "attach" on an adapter, which is + independent of the adapter's link state. + - Instantiation of the vport on the FC link via ELS traffic, etc. + This is equivalent to a "link up" and successfull link initialization. + Futher information can be found in the interfaces section below for + Vport Creation. + + Once a vport has been instantiated with the kernel/LLDD, a vport state + can be reported via the sysfs attribute. The following states exist: + + FC_VPORT_UNKNOWN - Unknown + An temporary state, typically set only while the vport is being + instantiated with the kernel and LLDD. + + FC_VPORT_ACTIVE - Active + The vport has been successfully been created on the FC link. + It is fully functional. + + FC_VPORT_DISABLED - Disabled + The vport instantiated, but "disabled". The vport is not instantiated + on the FC link. This is equivalent to a physical port with the + link "down". + + FC_VPORT_LINKDOWN - Linkdown + The vport is not operational as the physical link is not operational. + + FC_VPORT_INITIALIZING - Initializing + The vport is in the process of instantiating on the FC link. + The LLDD will set this state just prior to starting the ELS traffic + to create the vport. This state will persist until the vport is + successfully created (state becomes FC_VPORT_ACTIVE) or it fails + (state is one of the values below). As this state is transitory, + it will not be preserved in the "vport_last_state". + + FC_VPORT_NO_FABRIC_SUPP - No Fabric Support + The vport is not operational. One of the following conditions were + encountered: + - The FC topology is not Point-to-Point + - The FC port is not connected to an F_Port + - The F_Port has indicated that NPIV is not supported. + + FC_VPORT_NO_FABRIC_RSCS - No Fabric Resources + The vport is not operational. The Fabric failed FDISC with a status + indicating that it does not have sufficient resources to complete + the operation. + + FC_VPORT_FABRIC_LOGOUT - Fabric Logout + The vport is not operational. The Fabric has LOGO'd the N_Port_ID + associated with the vport. + + FC_VPORT_FABRIC_REJ_WWN - Fabric Rejected WWN + The vport is not operational. The Fabric failed FDISC with a status + indicating that the WWN's are not valid. + + FC_VPORT_FAILED - VPort Failed + The vport is not operational. This is a catchall for all other + error conditions. + + + The following state table indicates the different state transitions: + + State Event New State + -------------------------------------------------------------------- + n/a Initialization Unknown + Unknown: Link Down Linkdown + Link Up & Loop No Fabric Support + Link Up & no Fabric No Fabric Support + Link Up & FLOGI response No Fabric Support + indicates no NPIV support + Link Up & FDISC being sent Initializing + Disable request Disable + Linkdown: Link Up Unknown + Initializing: FDISC ACC Active + FDISC LS_RJT w/ no resources No Fabric Resources + FDISC LS_RJT w/ invalid Fabric Rejected WWN + pname or invalid nport_id + FDISC LS_RJT failed for Vport Failed + other reasons + Link Down Linkdown + Disable request Disable + Disable: Enable request Unknown + Active: LOGO received from fabric Fabric Logout + Link Down Linkdown + Disable request Disable + Fabric Logout: Link still up Unknown + + The following 4 error states all have the same transitions: + No Fabric Support: + No Fabric Resources: + Fabric Rejected WWN: + Vport Failed: + Disable request Disable + Link goes down Linkdown + + +Transport <-> LLDD Interfaces : +------------------------------- + +Vport support by LLDD: + + The LLDD indicates support for vports by supplying a vport_create() + function in the transport template. The presense of this function will + cause the creation of the new attributes on the fc_host. As part of + the physical port completing its initialization relative to the + transport, it should set the max_npiv_vports attribute to indicate the + maximum number of vports the driver and/or adapter supports. + + +Vport Creation: + + The LLDD vport_create() syntax is: + + int vport_create(struct fc_vport *vport, bool disable) + + where: + vport: Is the newly allocated vport object + disable: If "true", the vport is to be created in a disabled stated. + If "false", the vport is to be enabled upon creation. + + When a request is made to create a new vport (via sgio/netlink, or the + vport_create fc_host attribute), the transport will validate that the LLDD + can support another vport (e.g. max_npiv_vports > npiv_vports_inuse). + If not, the create request will be failed. If space remains, the transport + will increment the vport count, create the vport object, and then call the + LLDD's vport_create() function with the newly allocated vport object. + + As mentioned above, vport creation is divided into two parts: + - Creation with the kernel and LLDD. This means all transport and + driver data structures are built up, and device objects created. + This is equivalent to a driver "attach" on an adapter, which is + independent of the adapter's link state. + - Instantiation of the vport on the FC link via ELS traffic, etc. + This is equivalent to a "link up" and successfull link initialization. + + The LLDD's vport_create() function will not synchronously wait for both + parts to be fully completed before returning. It must validate that the + infrastructure exists to support NPIV, and complete the first part of + vport creation (data structure build up) before returning. We do not + hinge vport_create() on the link-side operation mainly because: + - The link may be down. It is not a failure if it is. It simply + means the vport is in an inoperable state until the link comes up. + This is consistent with the link bouncing post vport creation. + - The vport may be created in a disabled state. + - This is consistent with a model where: the vport equates to a + FC adapter. The vport_create is synonymous with driver attachment + to the adapter, which is independent of link state. + + Note: special error codes have been defined to delineate infrastructure + failure cases for quicker resolution. + + The expected behavior for the LLDD's vport_create() function is: + - Validate Infrastructure: + - If the driver or adapter cannot support another vport, whether + due to improper firmware, (a lie about) max_npiv, or a lack of + some other resource - return VPCERR_UNSUPPORTED. + - If the driver validates the WWN's against those already active on + the adapter and detects an overlap - return VPCERR_BAD_WWN. + - If the driver detects the topology is loop, non-fabric, or the + FLOGI did not support NPIV - return VPCERR_NO_FABRIC_SUPP. + - Allocate data structures. If errors are encountered, such as out + of memory conditions, return the respective negative Exxx error code. + - If the role is FCP Initiator, the LLDD is to : + - Call scsi_host_alloc() to allocate a scsi_host for the vport. + - Call scsi_add_host(new_shost, &vport->dev) to start the scsi_host + and bind it as a child of the vport device. + - Initializes the fc_host attribute values. + - Kick of further vport state transitions based on the disable flag and + link state - and return success (zero). + + LLDD Implementers Notes: + - It is suggested that there be a different fc_function_templates for + the physical port and the virtual port. The physical port's template + would have the vport_create, vport_delete, and vport_disable functions, + while the vports would not. + - It is suggested that there be different scsi_host_templates + for the physical port and virtual port. Likely, there are driver + attributes, embedded into the scsi_host_template, that are applicable + for the physical port only (link speed, topology setting, etc). This + ensures that the attributes are applicable to the respective scsi_host. + + +Vport Disable/Enable: + + The LLDD vport_disable() syntax is: + + int vport_disable(struct fc_vport *vport, bool disable) + + where: + vport: Is vport to to be enabled or disabled + disable: If "true", the vport is to be disabled. + If "false", the vport is to be enabled. + + When a request is made to change the disabled state on a vport, the + transport will validate the request against the existing vport state. + If the request is to disable and the vport is already disabled, the + request will fail. Similarly, if the request is to enable, and the + vport is not in a disabled state, the request will fail. If the request + is valid for the vport state, the transport will call the LLDD to + change the vport's state. + + Within the LLDD, if a vport is disabled, it remains instantiated with + the kernel and LLDD, but it is not active or visible on the FC link in + any way. (see Vport Creation and the 2 part instantiation discussion). + The vport will remain in this state until it is deleted or re-enabled. + When enabling a vport, the LLDD reinstantiates the vport on the FC + link - essentially restarting the LLDD statemachine (see Vport States + above). + + +Vport Deletion: + + The LLDD vport_delete() syntax is: + + int vport_delete(struct fc_vport *vport) + + where: + vport: Is vport to delete + + When a request is made to delete a vport (via sgio/netlink, or via the + fc_host or fc_vport vport_delete attributes), the transport will call + the LLDD to terminate the vport on the FC link, and teardown all other + datastructures and references. If the LLDD completes successfully, + the transport will teardown the vport objects and complete the vport + removal. If the LLDD delete request fails, the vport object will remain, + but will be in an indeterminate state. + + Within the LLDD, the normal code paths for a scsi_host teardown should + be followed. E.g. If the vport has a FCP Initiator role, the LLDD + will call fc_remove_host() for the vports scsi_host, followed by + scsi_remove_host() and scsi_host_put() for the vports scsi_host. + + +Other: + fc_host port_type attribute: + There is a new fc_host port_type value - FC_PORTTYPE_NPIV. This value + must be set on all vport-based fc_hosts. Normally, on a physical port, + the port_type attribute would be set to NPORT, NLPORT, etc based on the + topology type and existence of the fabric. As this is not applicable to + a vport, it makes more sense to report the FC mechanism used to create + the vport. + + Driver unload: + FC drivers are required to call fc_remove_host() prior to calling + scsi_remove_host(). This allows the fc_host to tear down all remote + ports prior the scsi_host being torn down. The fc_remove_host() call + was updated to remove all vports for the fc_host as well. + + +Credits +======= +The following people have contributed to this document: + + + + + + +James Smart +james.smart@emulex.com + diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 90961a8..4aca7dd 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -555,7 +555,6 @@ complete_scsi_command( CommandList_struc { struct scsi_cmnd *cmd; ctlr_info_t *ctlr; - u64bit addr64; ErrorInfo_struct *ei; ei = cp->err_info; @@ -569,20 +568,7 @@ complete_scsi_command( CommandList_struc cmd = (struct scsi_cmnd *) cp->scsi_cmd; ctlr = hba[cp->ctlr]; - /* undo the DMA mappings */ - - if (cmd->use_sg) { - pci_unmap_sg(ctlr->pdev, - cmd->request_buffer, cmd->use_sg, - cmd->sc_data_direction); - } - else if (cmd->request_bufflen) { - addr64.val32.lower = cp->SG[0].Addr.lower; - addr64.val32.upper = cp->SG[0].Addr.upper; - pci_unmap_single(ctlr->pdev, (dma_addr_t) addr64.val, - cmd->request_bufflen, - cmd->sc_data_direction); - } + scsi_dma_unmap(cmd); cmd->result = (DID_OK << 16); /* host byte */ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ @@ -597,7 +583,7 @@ complete_scsi_command( CommandList_struc ei->SenseLen > SCSI_SENSE_BUFFERSIZE ? SCSI_SENSE_BUFFERSIZE : ei->SenseLen); - cmd->resid = ei->ResidualCnt; + scsi_set_resid(cmd, ei->ResidualCnt); if(ei->CommandStatus != 0) { /* an error has occurred */ @@ -1204,46 +1190,29 @@ cciss_scatter_gather(struct pci_dev *pde CommandList_struct *cp, struct scsi_cmnd *cmd) { - unsigned int use_sg, nsegs=0, len; - struct scatterlist *scatter = (struct scatterlist *) cmd->request_buffer; + unsigned int len; + struct scatterlist *sg; __u64 addr64; - - /* is it just one virtual address? */ - if (!cmd->use_sg) { - if (cmd->request_bufflen) { /* anything to xfer? */ - - addr64 = (__u64) pci_map_single(pdev, - cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - - cp->SG[0].Addr.lower = - (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); - cp->SG[0].Addr.upper = - (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); - cp->SG[0].Len = cmd->request_bufflen; - nsegs=1; - } - } /* else, must be a list of virtual addresses.... */ - else if (cmd->use_sg <= MAXSGENTRIES) { /* not too many addrs? */ - - use_sg = pci_map_sg(pdev, cmd->request_buffer, cmd->use_sg, - cmd->sc_data_direction); - - for (nsegs=0; nsegs < use_sg; nsegs++) { - addr64 = (__u64) sg_dma_address(&scatter[nsegs]); - len = sg_dma_len(&scatter[nsegs]); - cp->SG[nsegs].Addr.lower = - (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); - cp->SG[nsegs].Addr.upper = - (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); - cp->SG[nsegs].Len = len; - cp->SG[nsegs].Ext = 0; // we are not chaining + int use_sg, i; + + BUG_ON(scsi_sg_count(cmd) > MAXSGENTRIES); + + use_sg = scsi_dma_map(cmd); + if (use_sg) { /* not too many addrs? */ + scsi_for_each_sg(cmd, sg, use_sg, i) { + addr64 = (__u64) sg_dma_address(sg); + len = sg_dma_len(sg); + cp->SG[i].Addr.lower = + (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); + cp->SG[i].Addr.upper = + (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); + cp->SG[i].Len = len; + cp->SG[i].Ext = 0; // we are not chaining } - } else BUG(); + } - cp->Header.SGList = (__u8) nsegs; /* no. SGs contig in this cmd */ - cp->Header.SGTotal = (__u16) nsegs; /* total sgs in this cmd list */ + cp->Header.SGList = (__u8) use_sg; /* no. SGs contig in this cmd */ + cp->Header.SGTotal = (__u16) use_sg; /* total sgs in this cmd list */ return; } diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 875eadd..ce86ff2 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -1489,69 +1489,6 @@ static void sbp2_prep_command_orb_sg(str } } -static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb, - struct sbp2_fwhost_info *hi, - struct sbp2_command_info *cmd, - struct scatterlist *sgpnt, - u32 orb_direction, - unsigned int scsi_request_bufflen, - void *scsi_request_buffer, - enum dma_data_direction dma_dir) -{ - cmd->dma_dir = dma_dir; - cmd->dma_size = scsi_request_bufflen; - cmd->dma_type = CMD_DMA_SINGLE; - cmd->cmd_dma = dma_map_single(hi->host->device.parent, - scsi_request_buffer, - cmd->dma_size, cmd->dma_dir); - orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id); - orb->misc |= ORB_SET_DIRECTION(orb_direction); - - /* handle case where we get a command w/o s/g enabled - * (but check for transfers larger than 64K) */ - if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) { - - orb->data_descriptor_lo = cmd->cmd_dma; - orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen); - - } else { - /* The buffer is too large. Turn this into page tables. */ - - struct sbp2_unrestricted_page_table *sg_element = - &cmd->scatter_gather_element[0]; - u32 sg_count, sg_len; - dma_addr_t sg_addr; - - orb->data_descriptor_lo = cmd->sge_dma; - orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1); - - /* fill out our SBP-2 page tables; split up the large buffer */ - sg_count = 0; - sg_len = scsi_request_bufflen; - sg_addr = cmd->cmd_dma; - while (sg_len) { - sg_element[sg_count].segment_base_lo = sg_addr; - if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) { - sg_element[sg_count].length_segment_base_hi = - PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH); - sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH; - sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH; - } else { - sg_element[sg_count].length_segment_base_hi = - PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len); - sg_len = 0; - } - sg_count++; - } - - orb->misc |= ORB_SET_DATA_SIZE(sg_count); - - sbp2util_cpu_to_be32_buffer(sg_element, - (sizeof(struct sbp2_unrestricted_page_table)) * - sg_count); - } -} - static void sbp2_create_command_orb(struct sbp2_lu *lu, struct sbp2_command_info *cmd, unchar *scsi_cmd, @@ -1595,13 +1532,9 @@ static void sbp2_create_command_orb(stru orb->data_descriptor_hi = 0x0; orb->data_descriptor_lo = 0x0; orb->misc |= ORB_SET_DIRECTION(1); - } else if (scsi_use_sg) + } else sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_use_sg, sgpnt, orb_direction, dma_dir); - else - sbp2_prep_command_orb_no_sg(orb, hi, cmd, sgpnt, orb_direction, - scsi_request_bufflen, - scsi_request_buffer, dma_dir); sbp2util_cpu_to_be32_buffer(orb, sizeof(*orb)); @@ -1690,15 +1623,15 @@ static int sbp2_send_command(struct sbp2 void (*done)(struct scsi_cmnd *)) { unchar *scsi_cmd = (unchar *)SCpnt->cmnd; - unsigned int request_bufflen = SCpnt->request_bufflen; + unsigned int request_bufflen = scsi_bufflen(SCpnt); struct sbp2_command_info *cmd; cmd = sbp2util_allocate_command_orb(lu, SCpnt, done); if (!cmd) return -EIO; - sbp2_create_command_orb(lu, cmd, scsi_cmd, SCpnt->use_sg, - request_bufflen, SCpnt->request_buffer, + sbp2_create_command_orb(lu, cmd, scsi_cmd, scsi_sg_count(SCpnt), + request_bufflen, scsi_sglist(SCpnt), SCpnt->sc_data_direction); sbp2_link_orb_command(lu, cmd); diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 3bd94f1..bc740a6 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -260,30 +260,13 @@ mptscsih_AddSGE(MPT_ADAPTER *ioc, struct /* Map the data portion, if any. * sges_left = 0 if no data transfer. */ - if ( (sges_left = SCpnt->use_sg) ) { - sges_left = pci_map_sg(ioc->pcidev, - (struct scatterlist *) SCpnt->request_buffer, - SCpnt->use_sg, - SCpnt->sc_data_direction); - if (sges_left == 0) - return FAILED; - } else if (SCpnt->request_bufflen) { - SCpnt->SCp.dma_handle = pci_map_single(ioc->pcidev, - SCpnt->request_buffer, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - dsgprintk((MYIOC_s_INFO_FMT "SG: non-SG for %p, len=%d\n", - ioc->name, SCpnt, SCpnt->request_bufflen)); - mptscsih_add_sge((char *) &pReq->SGL, - 0xD1000000|MPT_SGE_FLAGS_ADDRESSING|sgdir|SCpnt->request_bufflen, - SCpnt->SCp.dma_handle); - - return SUCCESS; - } + sges_left = scsi_dma_map(SCpnt); + if (sges_left < 0) + return FAILED; /* Handle the SG case. */ - sg = (struct scatterlist *) SCpnt->request_buffer; + sg = scsi_sglist(SCpnt); sg_done = 0; sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION); chainSge = NULL; @@ -662,7 +645,7 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_F scsi_state = pScsiReply->SCSIState; scsi_status = pScsiReply->SCSIStatus; xfer_cnt = le32_to_cpu(pScsiReply->TransferCount); - sc->resid = sc->request_bufflen - xfer_cnt; + scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); log_info = le32_to_cpu(pScsiReply->IOCLogInfo); /* @@ -767,7 +750,7 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_F break; case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */ - sc->resid = sc->request_bufflen - xfer_cnt; + scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); if((xfer_cnt==0)||(sc->underflow > xfer_cnt)) sc->result=DID_SOFT_ERROR << 16; else /* Sufficient data transfer occurred */ @@ -816,7 +799,7 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_F break; case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */ - sc->resid=0; + scsi_set_resid(sc, 0); case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ sc->result = (DID_OK << 16) | scsi_status; @@ -899,23 +882,18 @@ #ifdef MPT_DEBUG_REPLY scsi_state, scsi_status, log_info)); dreplyprintk(("%s: [%d:%d:%d:%d] resid=%d " - "bufflen=%d xfer_cnt=%d\n", __FUNCTION__, - sc->device->host->host_no, sc->device->channel, sc->device->id, - sc->device->lun, sc->resid, sc->request_bufflen, - xfer_cnt)); + "bufflen=%d xfer_cnt=%d\n", __FUNCTION__, + sc->device->host->host_no, + sc->device->channel, sc->device->id, + sc->device->lun, scsi_get_resid(sc), + scsi_bufflen(sc), xfer_cnt)); } #endif } /* end of address reply case */ /* Unmap the DMA buffers, if any. */ - if (sc->use_sg) { - pci_unmap_sg(ioc->pcidev, (struct scatterlist *) sc->request_buffer, - sc->use_sg, sc->sc_data_direction); - } else if (sc->request_bufflen) { - pci_unmap_single(ioc->pcidev, sc->SCp.dma_handle, - sc->request_bufflen, sc->sc_data_direction); - } + scsi_dma_unmap(sc); sc->scsi_done(sc); /* Issue the command callback */ @@ -970,17 +948,8 @@ mptscsih_flush_running_cmds(MPT_SCSI_HOS /* Set status, free OS resources (SG DMA buffers) * Do OS callback */ - if (SCpnt->use_sg) { - pci_unmap_sg(ioc->pcidev, - (struct scatterlist *) SCpnt->request_buffer, - SCpnt->use_sg, - SCpnt->sc_data_direction); - } else if (SCpnt->request_bufflen) { - pci_unmap_single(ioc->pcidev, - SCpnt->SCp.dma_handle, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - } + scsi_dma_unmap(SCpnt); + SCpnt->result = DID_RESET << 16; SCpnt->host_scribble = NULL; @@ -1039,17 +1008,8 @@ mptscsih_search_running_cmds(MPT_SCSI_HO mpt_free_msg_frame(hd->ioc, (MPT_FRAME_HDR *)mf); if ((unsigned char *)mf != sc->host_scribble) continue; - if (sc->use_sg) { - pci_unmap_sg(hd->ioc->pcidev, - (struct scatterlist *) sc->request_buffer, - sc->use_sg, - sc->sc_data_direction); - } else if (sc->request_bufflen) { - pci_unmap_single(hd->ioc->pcidev, - sc->SCp.dma_handle, - sc->request_bufflen, - sc->sc_data_direction); - } + scsi_dma_unmap(sc); + sc->host_scribble = NULL; sc->result = DID_NO_CONNECT << 16; sc->scsi_done(sc); @@ -1380,10 +1340,10 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, v * will be no data transfer! GRRRRR... */ if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { - datalen = SCpnt->request_bufflen; + datalen = scsi_bufflen(SCpnt); scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */ } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { - datalen = SCpnt->request_bufflen; + datalen = scsi_bufflen(SCpnt); scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */ } else { datalen = 0; diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index cb02656..405d9d6 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -585,16 +585,8 @@ NCR_700_unmap(struct NCR_700_Host_Parame struct NCR_700_command_slot *slot) { if(SCp->sc_data_direction != DMA_NONE && - SCp->sc_data_direction != DMA_BIDIRECTIONAL) { - if(SCp->use_sg) { - dma_unmap_sg(hostdata->dev, SCp->request_buffer, - SCp->use_sg, SCp->sc_data_direction); - } else { - dma_unmap_single(hostdata->dev, slot->dma_handle, - SCp->request_bufflen, - SCp->sc_data_direction); - } - } + SCp->sc_data_direction != DMA_BIDIRECTIONAL) + scsi_dma_unmap(SCp); } STATIC inline void @@ -1263,14 +1255,13 @@ #endif host->host_no, pun, lun, NCR_700_condition[i], NCR_700_phase[j], dsp - hostdata->pScript); if(SCp != NULL) { - scsi_print_command(SCp); + struct scatterlist *sg; - if(SCp->use_sg) { - for(i = 0; i < SCp->use_sg + 1; i++) { - printk(KERN_INFO " SG[%d].length = %d, move_insn=%08x, addr %08x\n", i, ((struct scatterlist *)SCp->request_buffer)[i].length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].pAddr); - } + scsi_print_command(SCp); + scsi_for_each_sg(SCp, sg, scsi_sg_count(SCp) + 1, i) { + printk(KERN_INFO " SG[%d].length = %d, move_insn=%08x, addr %08x\n", i, sg->length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].pAddr); } - } + } NCR_700_internal_bus_reset(host); } else if((dsps & 0xfffff000) == A_DEBUG_INTERRUPT) { printk(KERN_NOTICE "scsi%d (%d:%d) DEBUG INTERRUPT %d AT %08x[%04x], continuing\n", @@ -1844,8 +1835,8 @@ #endif } /* sanity check: some of the commands generated by the mid-layer * have an eccentric idea of their sc_data_direction */ - if(!SCp->use_sg && !SCp->request_bufflen - && SCp->sc_data_direction != DMA_NONE) { + if(!scsi_sg_count(SCp) && !scsi_bufflen(SCp) && + SCp->sc_data_direction != DMA_NONE) { #ifdef NCR_700_DEBUG printk("53c700: Command"); scsi_print_command(SCp); @@ -1887,31 +1878,15 @@ #endif int i; int sg_count; dma_addr_t vPtr = 0; + struct scatterlist *sg; __u32 count = 0; - if(SCp->use_sg) { - sg_count = dma_map_sg(hostdata->dev, - SCp->request_buffer, SCp->use_sg, - direction); - } else { - vPtr = dma_map_single(hostdata->dev, - SCp->request_buffer, - SCp->request_bufflen, - direction); - count = SCp->request_bufflen; - slot->dma_handle = vPtr; - sg_count = 1; - } - + sg_count = scsi_dma_map(SCp); + BUG_ON(sg_count < 0); - for(i = 0; i < sg_count; i++) { - - if(SCp->use_sg) { - struct scatterlist *sg = SCp->request_buffer; - - vPtr = sg_dma_address(&sg[i]); - count = sg_dma_len(&sg[i]); - } + scsi_for_each_sg(SCp, sg, sg_count, i) { + vPtr = sg_dma_address(sg); + count = sg_dma_len(sg); slot->SG[i].ins = bS_to_host(move_ins | count); DEBUG((" scatter block %d: move %d[%08x] from 0x%lx\n", diff --git a/drivers/scsi/53c7xx.c b/drivers/scsi/53c7xx.c deleted file mode 100644 index 93b41f4..0000000 --- a/drivers/scsi/53c7xx.c +++ /dev/null @@ -1,6102 +0,0 @@ -/* - * 53c710 driver. Modified from Drew Eckhardts driver - * for 53c810 by Richard Hirst [richard@sleepie.demon.co.uk] - * Check out PERM_OPTIONS and EXPECTED_CLOCK, which may be defined in the - * relevant machine specific file (eg. mvme16x.[ch], amiga7xx.[ch]). - * There are also currently some defines at the top of 53c7xx.scr. - * The chip type is #defined in script_asm.pl, as well as the Makefile. - * Host scsi ID expected to be 7 - see NCR53c7x0_init(). - * - * I have removed the PCI code and some of the 53c8xx specific code - - * simply to make this file smaller and easier to manage. - * - * MVME16x issues: - * Problems trying to read any chip registers in NCR53c7x0_init(), as they - * may never have been set by 16xBug (eg. If kernel has come in over tftp). - */ - -/* - * Adapted for Linux/m68k Amiga platforms for the A4000T/A4091 and - * WarpEngine SCSI controllers. - * By Alan Hourihane - * Thanks to Richard Hirst for making it possible with the MVME additions - */ - -/* - * 53c710 rev 0 doesn't support add with carry. Rev 1 and 2 does. To - * overcome this problem you can define FORCE_DSA_ALIGNMENT, which ensures - * that the DSA address is always xxxxxx00. If disconnection is not allowed, - * then the script only ever tries to add small (< 256) positive offsets to - * DSA, so lack of carry isn't a problem. FORCE_DSA_ALIGNMENT can, of course, - * be defined for all chip revisions at a small cost in memory usage. - */ - -#define FORCE_DSA_ALIGNMENT - -/* - * Selection timer does not always work on the 53c710, depending on the - * timing at the last disconnect, if this is a problem for you, try - * using validids as detailed below. - * - * Options for the NCR7xx driver - * - * noasync:0 - disables sync and asynchronous negotiation - * nosync:0 - disables synchronous negotiation (does async) - * nodisconnect:0 - disables disconnection - * validids:0x?? - Bitmask field that disallows certain ID's. - * - e.g. 0x03 allows ID 0,1 - * - 0x1F allows ID 0,1,2,3,4 - * opthi:n - replace top word of options with 'n' - * optlo:n - replace bottom word of options with 'n' - * - ALWAYS SPECIFY opthi THEN optlo <<<<<<<<<< - */ - -/* - * PERM_OPTIONS are driver options which will be enabled for all NCR boards - * in the system at driver initialization time. - * - * Don't THINK about touching these in PERM_OPTIONS : - * OPTION_MEMORY_MAPPED - * 680x0 doesn't have an IO map! - * - * OPTION_DEBUG_TEST1 - * Test 1 does bus mastering and interrupt tests, which will help weed - * out brain damaged main boards. - * - * Other PERM_OPTIONS settings are listed below. Note the actual options - * required are set in the relevant file (mvme16x.c, amiga7xx.c, etc): - * - * OPTION_NO_ASYNC - * Don't negotiate for asynchronous transfers on the first command - * when OPTION_ALWAYS_SYNCHRONOUS is set. Useful for dain bramaged - * devices which do something bad rather than sending a MESSAGE - * REJECT back to us like they should if they can't cope. - * - * OPTION_SYNCHRONOUS - * Enable support for synchronous transfers. Target negotiated - * synchronous transfers will be responded to. To initiate - * a synchronous transfer request, call - * - * request_synchronous (hostno, target) - * - * from within KGDB. - * - * OPTION_ALWAYS_SYNCHRONOUS - * Negotiate for synchronous transfers with every target after - * driver initialization or a SCSI bus reset. This is a bit dangerous, - * since there are some dain bramaged SCSI devices which will accept - * SDTR messages but keep talking asynchronously. - * - * OPTION_DISCONNECT - * Enable support for disconnect/reconnect. To change the - * default setting on a given host adapter, call - * - * request_disconnect (hostno, allow) - * - * where allow is non-zero to allow, 0 to disallow. - * - * If you really want to run 10MHz FAST SCSI-II transfers, you should - * know that the NCR driver currently ignores parity information. Most - * systems do 5MHz SCSI fine. I've seen a lot that have problems faster - * than 8MHz. To play it safe, we only request 5MHz transfers. - * - * If you'd rather get 10MHz transfers, edit sdtr_message and change - * the fourth byte from 50 to 25. - */ - -/* - * Sponsored by - * iX Multiuser Multitasking Magazine - * Hannover, Germany - * hm@ix.de - * - * Copyright 1993, 1994, 1995 Drew Eckhardt - * Visionary Computing - * (Unix and Linux consulting and custom programming) - * drew@PoohSticks.ORG - * +1 (303) 786-7975 - * - * TolerANT and SCSI SCRIPTS are registered trademarks of NCR Corporation. - * - * For more information, please consult - * - * NCR53C810 - * SCSI I/O Processor - * Programmer's Guide - * - * NCR 53C810 - * PCI-SCSI I/O Processor - * Data Manual - * - * NCR 53C810/53C820 - * PCI-SCSI I/O Processor Design In Guide - * - * For literature on Symbios Logic Inc. formerly NCR, SCSI, - * and Communication products please call (800) 334-5454 or - * (719) 536-3300. - * - * PCI BIOS Specification Revision - * PCI Local Bus Specification - * PCI System Design Guide - * - * PCI Special Interest Group - * M/S HF3-15A - * 5200 N.E. Elam Young Parkway - * Hillsboro, Oregon 97124-6497 - * +1 (503) 696-2000 - * +1 (800) 433-5177 - */ - -/* - * Design issues : - * The cumulative latency needed to propagate a read/write request - * through the file system, buffer cache, driver stacks, SCSI host, and - * SCSI device is ultimately the limiting factor in throughput once we - * have a sufficiently fast host adapter. - * - * So, to maximize performance we want to keep the ratio of latency to data - * transfer time to a minimum by - * 1. Minimizing the total number of commands sent (typical command latency - * including drive and bus mastering host overhead is as high as 4.5ms) - * to transfer a given amount of data. - * - * This is accomplished by placing no arbitrary limit on the number - * of scatter/gather buffers supported, since we can transfer 1K - * per scatter/gather buffer without Eric's cluster patches, - * 4K with. - * - * 2. Minimizing the number of fatal interrupts serviced, since - * fatal interrupts halt the SCSI I/O processor. Basically, - * this means offloading the practical maximum amount of processing - * to the SCSI chip. - * - * On the NCR53c810/820/720, this is accomplished by using - * interrupt-on-the-fly signals when commands complete, - * and only handling fatal errors and SDTR / WDTR messages - * in the host code. - * - * On the NCR53c710, interrupts are generated as on the NCR53c8x0, - * only the lack of a interrupt-on-the-fly facility complicates - * things. Also, SCSI ID registers and commands are - * bit fielded rather than binary encoded. - * - * On the NCR53c700 and NCR53c700-66, operations that are done via - * indirect, table mode on the more advanced chips must be - * replaced by calls through a jump table which - * acts as a surrogate for the DSA. Unfortunately, this - * will mean that we must service an interrupt for each - * disconnect/reconnect. - * - * 3. Eliminating latency by pipelining operations at the different levels. - * - * This driver allows a configurable number of commands to be enqueued - * for each target/lun combination (experimentally, I have discovered - * that two seems to work best) and will ultimately allow for - * SCSI-II tagged queuing. - * - * - * Architecture : - * This driver is built around a Linux queue of commands waiting to - * be executed, and a shared Linux/NCR array of commands to start. Commands - * are transferred to the array by the run_process_issue_queue() function - * which is called whenever a command completes. - * - * As commands are completed, the interrupt routine is triggered, - * looks for commands in the linked list of completed commands with - * valid status, removes these commands from a list of running commands, - * calls the done routine, and flags their target/luns as not busy. - * - * Due to limitations in the intelligence of the NCR chips, certain - * concessions are made. In many cases, it is easier to dynamically - * generate/fix-up code rather than calculate on the NCR at run time. - * So, code is generated or fixed up for - * - * - Handling data transfers, using a variable number of MOVE instructions - * interspersed with CALL MSG_IN, WHEN MSGIN instructions. - * - * The DATAIN and DATAOUT routines are separate, so that an incorrect - * direction can be trapped, and space isn't wasted. - * - * It may turn out that we're better off using some sort - * of table indirect instruction in a loop with a variable - * sized table on the NCR53c710 and newer chips. - * - * - Checking for reselection (NCR53c710 and better) - * - * - Handling the details of SCSI context switches (NCR53c710 and better), - * such as reprogramming appropriate synchronous parameters, - * removing the dsa structure from the NCR's queue of outstanding - * commands, etc. - * - */ - -#include - - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef CONFIG_AMIGA -#include -#include -#include - -#define BIG_ENDIAN -#define NO_IO_SPACE -#endif - -#ifdef CONFIG_MVME16x -#include - -#define BIG_ENDIAN -#define NO_IO_SPACE -#define VALID_IDS -#endif - -#ifdef CONFIG_BVME6000 -#include - -#define BIG_ENDIAN -#define NO_IO_SPACE -#define VALID_IDS -#endif - -#include "scsi.h" -#include -#include -#include -#include "53c7xx.h" -#include -#include - -#ifdef NO_IO_SPACE -/* - * The following make the definitions in 53c7xx.h (write8, etc) smaller, - * we don't have separate i/o space anyway. - */ -#undef inb -#undef outb -#undef inw -#undef outw -#undef inl -#undef outl -#define inb(x) 1 -#define inw(x) 1 -#define inl(x) 1 -#define outb(x,y) 1 -#define outw(x,y) 1 -#define outl(x,y) 1 -#endif - -static int check_address (unsigned long addr, int size); -static void dump_events (struct Scsi_Host *host, int count); -static Scsi_Cmnd * return_outstanding_commands (struct Scsi_Host *host, - int free, int issue); -static void hard_reset (struct Scsi_Host *host); -static void ncr_scsi_reset (struct Scsi_Host *host); -static void print_lots (struct Scsi_Host *host); -static void set_synchronous (struct Scsi_Host *host, int target, int sxfer, - int scntl3, int now_connected); -static int datapath_residual (struct Scsi_Host *host); -static const char * sbcl_to_phase (int sbcl); -static void print_progress (Scsi_Cmnd *cmd); -static void print_queues (struct Scsi_Host *host); -static void process_issue_queue (unsigned long flags); -static int shutdown (struct Scsi_Host *host); -static void abnormal_finished (struct NCR53c7x0_cmd *cmd, int result); -static int disable (struct Scsi_Host *host); -static int NCR53c7xx_run_tests (struct Scsi_Host *host); -static irqreturn_t NCR53c7x0_intr(int irq, void *dev_id); -static void NCR53c7x0_intfly (struct Scsi_Host *host); -static int ncr_halt (struct Scsi_Host *host); -static void intr_phase_mismatch (struct Scsi_Host *host, struct NCR53c7x0_cmd - *cmd); -static void intr_dma (struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd); -static void print_dsa (struct Scsi_Host *host, u32 *dsa, - const char *prefix); -static int print_insn (struct Scsi_Host *host, const u32 *insn, - const char *prefix, int kernel); - -static void NCR53c7xx_dsa_fixup (struct NCR53c7x0_cmd *cmd); -static void NCR53c7x0_init_fixup (struct Scsi_Host *host); -static int NCR53c7x0_dstat_sir_intr (struct Scsi_Host *host, struct - NCR53c7x0_cmd *cmd); -static void NCR53c7x0_soft_reset (struct Scsi_Host *host); - -/* Size of event list (per host adapter) */ -static int track_events = 0; -static struct Scsi_Host *first_host = NULL; /* Head of list of NCR boards */ -static struct scsi_host_template *the_template = NULL; - -/* NCR53c710 script handling code */ - -#include "53c7xx_d.h" -#ifdef A_int_debug_sync -#define DEBUG_SYNC_INTR A_int_debug_sync -#endif -int NCR53c7xx_script_len = sizeof (SCRIPT); -int NCR53c7xx_dsa_len = A_dsa_end + Ent_dsa_zero - Ent_dsa_code_template; -#ifdef FORCE_DSA_ALIGNMENT -int CmdPageStart = (0 - Ent_dsa_zero - sizeof(struct NCR53c7x0_cmd)) & 0xff; -#endif - -static char *setup_strings[] = - {"","","","","","","",""}; - -#define MAX_SETUP_STRINGS ARRAY_SIZE(setup_strings) -#define SETUP_BUFFER_SIZE 200 -static char setup_buffer[SETUP_BUFFER_SIZE]; -static char setup_used[MAX_SETUP_STRINGS]; - -void ncr53c7xx_setup (char *str, int *ints) -{ - int i; - char *p1, *p2; - - p1 = setup_buffer; - *p1 = '\0'; - if (str) - strncpy(p1, str, SETUP_BUFFER_SIZE - strlen(setup_buffer)); - setup_buffer[SETUP_BUFFER_SIZE - 1] = '\0'; - p1 = setup_buffer; - i = 0; - while (*p1 && (i < MAX_SETUP_STRINGS)) { - p2 = strchr(p1, ','); - if (p2) { - *p2 = '\0'; - if (p1 != p2) - setup_strings[i] = p1; - p1 = p2 + 1; - i++; - } - else { - setup_strings[i] = p1; - break; - } - } - for (i=0; i= '0') && (*cp <= '9')) { - *val = simple_strtoul(cp,NULL,0); - } - return ++x; -} - - - -/* - * KNOWN BUGS : - * - There is some sort of conflict when the PPP driver is compiled with - * support for 16 channels? - * - * - On systems which predate the 1.3.x initialization order change, - * the NCR driver will cause Cannot get free page messages to appear. - * These are harmless, but I don't know of an easy way to avoid them. - * - * - With OPTION_DISCONNECT, on two systems under unknown circumstances, - * we get a PHASE MISMATCH with DSA set to zero (suggests that we - * are occurring somewhere in the reselection code) where - * DSP=some value DCMD|DBC=same value. - * - * Closer inspection suggests that we may be trying to execute - * some portion of the DSA? - * scsi0 : handling residual transfer (+ 0 bytes from DMA FIFO) - * scsi0 : handling residual transfer (+ 0 bytes from DMA FIFO) - * scsi0 : no current command : unexpected phase MSGIN. - * DSP=0x1c46cc, DCMD|DBC=0x1c46ac, DSA=0x0 - * DSPS=0x0, TEMP=0x1c3e70, DMODE=0x80 - * scsi0 : DSP-> - * 001c46cc : 0x001c46cc 0x00000000 - * 001c46d4 : 0x001c5ea0 0x000011f8 - * - * Changed the print code in the phase_mismatch handler so - * that we call print_lots to try to diagnose this. - * - */ - -/* - * Possible future direction of architecture for max performance : - * - * We're using a single start array for the NCR chip. This is - * sub-optimal, because we cannot add a command which would conflict with - * an executing command to this start queue, and therefore must insert the - * next command for a given I/T/L combination after the first has completed; - * incurring our interrupt latency between SCSI commands. - * - * To allow further pipelining of the NCR and host CPU operation, we want - * to set things up so that immediately on termination of a command destined - * for a given LUN, we get that LUN busy again. - * - * To do this, we need to add a 32 bit pointer to which is jumped to - * on completion of a command. If no new command is available, this - * would point to the usual DSA issue queue select routine. - * - * If one were, it would point to a per-NCR53c7x0_cmd select routine - * which starts execution immediately, inserting the command at the head - * of the start queue if the NCR chip is selected or reselected. - * - * We would change so that we keep a list of outstanding commands - * for each unit, rather than a single running_list. We'd insert - * a new command into the right running list; if the NCR didn't - * have something running for that yet, we'd put it in the - * start queue as well. Some magic needs to happen to handle the - * race condition between the first command terminating before the - * new one is written. - * - * Potential for profiling : - * Call do_gettimeofday(struct timeval *tv) to get 800ns resolution. - */ - - -/* - * TODO : - * 1. To support WIDE transfers, not much needs to happen. We - * should do CHMOVE instructions instead of MOVEs when - * we have scatter/gather segments of uneven length. When - * we do this, we need to handle the case where we disconnect - * between segments. - * - * 2. Currently, when Icky things happen we do a FATAL(). Instead, - * we want to do an integrity check on the parts of the NCR hostdata - * structure which were initialized at boot time; FATAL() if that - * fails, and otherwise try to recover. Keep track of how many - * times this has happened within a single SCSI command; if it - * gets excessive, then FATAL(). - * - * 3. Parity checking is currently disabled, and a few things should - * happen here now that we support synchronous SCSI transfers : - * 1. On soft-reset, we shoould set the EPC (Enable Parity Checking) - * and AAP (Assert SATN/ on parity error) bits in SCNTL0. - * - * 2. We should enable the parity interrupt in the SIEN0 register. - * - * 3. intr_phase_mismatch() needs to believe that message out is - * always an "acceptable" phase to have a mismatch in. If - * the old phase was MSG_IN, we should send a MESSAGE PARITY - * error. If the old phase was something else, we should send - * a INITIATOR_DETECTED_ERROR message. Note that this could - * cause a RESTORE POINTERS message; so we should handle that - * correctly first. Instead, we should probably do an - * initiator_abort. - * - * 4. MPEE bit of CTEST4 should be set so we get interrupted if - * we detect an error. - * - * - * 5. The initial code has been tested on the NCR53c810. I don't - * have access to NCR53c700, 700-66 (Forex boards), NCR53c710 - * (NCR Pentium systems), NCR53c720, NCR53c820, or NCR53c825 boards to - * finish development on those platforms. - * - * NCR53c820/825/720 - need to add wide transfer support, including WDTR - * negotiation, programming of wide transfer capabilities - * on reselection and table indirect selection. - * - * NCR53c710 - need to add fatal interrupt or GEN code for - * command completion signaling. Need to modify all - * SDID, SCID, etc. registers, and table indirect select code - * since these use bit fielded (ie 1<NOP_insn) ? - /* - * If the IF TRUE bit is set, it's a JUMP instruction. The - * operand is a bus pointer to the dsa_begin routine for this DSA. The - * dsa field of the NCR53c7x0_cmd structure starts with the - * DSA code template. By converting to a virtual address, - * subtracting the code template size, and offset of the - * dsa field, we end up with a pointer to the start of the - * structure (alternatively, we could use the - * dsa_cmnd field, an anachronism from when we weren't - * sure what the relationship between the NCR structures - * and host structures were going to be. - */ - (struct NCR53c7x0_cmd *) ((char *) bus_to_virt (issue[1]) - - (hostdata->E_dsa_code_begin - hostdata->E_dsa_code_template) - - offsetof(struct NCR53c7x0_cmd, dsa)) - /* If the IF TRUE bit is not set, it's a NOP */ - : NULL; -} - - -/* - * FIXME: we should junk these, in favor of synchronous_want and - * wide_want in the NCR53c7x0_hostdata structure. - */ - -/* Template for "preferred" synchronous transfer parameters. */ - -static const unsigned char sdtr_message[] = { -#ifdef CONFIG_SCSI_NCR53C7xx_FAST - EXTENDED_MESSAGE, 3 /* length */, EXTENDED_SDTR, 25 /* *4ns */, 8 /* off */ -#else - EXTENDED_MESSAGE, 3 /* length */, EXTENDED_SDTR, 50 /* *4ns */, 8 /* off */ -#endif -}; - -/* Template to request asynchronous transfers */ - -static const unsigned char async_message[] = { - EXTENDED_MESSAGE, 3 /* length */, EXTENDED_SDTR, 0, 0 /* asynchronous */ -}; - -/* Template for "preferred" WIDE transfer parameters */ - -static const unsigned char wdtr_message[] = { - EXTENDED_MESSAGE, 2 /* length */, EXTENDED_WDTR, 1 /* 2^1 bytes */ -}; - -#if 0 -/* - * Function : struct Scsi_Host *find_host (int host) - * - * Purpose : KGDB support function which translates a host number - * to a host structure. - * - * Inputs : host - number of SCSI host - * - * Returns : NULL on failure, pointer to host structure on success. - */ - -static struct Scsi_Host * -find_host (int host) { - struct Scsi_Host *h; - for (h = first_host; h && h->host_no != host; h = h->next); - if (!h) { - printk (KERN_ALERT "scsi%d not found\n", host); - return NULL; - } else if (h->hostt != the_template) { - printk (KERN_ALERT "scsi%d is not a NCR board\n", host); - return NULL; - } - return h; -} - -#if 0 -/* - * Function : request_synchronous (int host, int target) - * - * Purpose : KGDB interface which will allow us to negotiate for - * synchronous transfers. This ill be replaced with a more - * integrated function; perhaps a new entry in the scsi_host - * structure, accessible via an ioctl() or perhaps /proc/scsi. - * - * Inputs : host - number of SCSI host; target - number of target. - * - * Returns : 0 when negotiation has been setup for next SCSI command, - * -1 on failure. - */ - -static int -request_synchronous (int host, int target) { - struct Scsi_Host *h; - struct NCR53c7x0_hostdata *hostdata; - unsigned long flags; - if (target < 0) { - printk (KERN_ALERT "target %d is bogus\n", target); - return -1; - } - if (!(h = find_host (host))) - return -1; - else if (h->this_id == target) { - printk (KERN_ALERT "target %d is host ID\n", target); - return -1; - } - else if (target >= h->max_id) { - printk (KERN_ALERT "target %d exceeds maximum of %d\n", target, - h->max_id); - return -1; - } - hostdata = (struct NCR53c7x0_hostdata *)h->hostdata[0]; - - local_irq_save(flags); - if (hostdata->initiate_sdtr & (1 << target)) { - local_irq_restore(flags); - printk (KERN_ALERT "target %d already doing SDTR\n", target); - return -1; - } - hostdata->initiate_sdtr |= (1 << target); - local_irq_restore(flags); - return 0; -} -#endif - -/* - * Function : request_disconnect (int host, int on_or_off) - * - * Purpose : KGDB support function, tells us to allow or disallow - * disconnections. - * - * Inputs : host - number of SCSI host; on_or_off - non-zero to allow, - * zero to disallow. - * - * Returns : 0 on success, * -1 on failure. - */ - -static int -request_disconnect (int host, int on_or_off) { - struct Scsi_Host *h; - struct NCR53c7x0_hostdata *hostdata; - if (!(h = find_host (host))) - return -1; - hostdata = (struct NCR53c7x0_hostdata *) h->hostdata[0]; - if (on_or_off) - hostdata->options |= OPTION_DISCONNECT; - else - hostdata->options &= ~OPTION_DISCONNECT; - return 0; -} -#endif - -/* - * Function : static void NCR53c7x0_driver_init (struct Scsi_Host *host) - * - * Purpose : Initialize internal structures, as required on startup, or - * after a SCSI bus reset. - * - * Inputs : host - pointer to this host adapter's structure - */ - -static void -NCR53c7x0_driver_init (struct Scsi_Host *host) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int i, j; - u32 *ncrcurrent; - - for (i = 0; i < 16; ++i) { - hostdata->request_sense[i] = 0; - for (j = 0; j < 8; ++j) - hostdata->busy[i][j] = 0; - set_synchronous (host, i, /* sxfer */ 0, hostdata->saved_scntl3, 0); - } - hostdata->issue_queue = NULL; - hostdata->running_list = hostdata->finished_queue = - hostdata->ncrcurrent = NULL; - for (i = 0, ncrcurrent = (u32 *) hostdata->schedule; - i < host->can_queue; ++i, ncrcurrent += 2) { - ncrcurrent[0] = hostdata->NOP_insn; - ncrcurrent[1] = 0xdeadbeef; - } - ncrcurrent[0] = ((DCMD_TYPE_TCI|DCMD_TCI_OP_JUMP) << 24) | DBC_TCI_TRUE; - ncrcurrent[1] = (u32) virt_to_bus (hostdata->script) + - hostdata->E_wait_reselect; - hostdata->reconnect_dsa_head = 0; - hostdata->addr_reconnect_dsa_head = (u32) - virt_to_bus((void *) &(hostdata->reconnect_dsa_head)); - hostdata->expecting_iid = 0; - hostdata->expecting_sto = 0; - if (hostdata->options & OPTION_ALWAYS_SYNCHRONOUS) - hostdata->initiate_sdtr = 0xffff; - else - hostdata->initiate_sdtr = 0; - hostdata->talked_to = 0; - hostdata->idle = 1; -} - -/* - * Function : static int clock_to_ccf_710 (int clock) - * - * Purpose : Return the clock conversion factor for a given SCSI clock. - * - * Inputs : clock - SCSI clock expressed in Hz. - * - * Returns : ccf on success, -1 on failure. - */ - -static int -clock_to_ccf_710 (int clock) { - if (clock <= 16666666) - return -1; - if (clock <= 25000000) - return 2; /* Divide by 1.0 */ - else if (clock <= 37500000) - return 1; /* Divide by 1.5 */ - else if (clock <= 50000000) - return 0; /* Divide by 2.0 */ - else if (clock <= 66000000) - return 3; /* Divide by 3.0 */ - else - return -1; -} - -/* - * Function : static int NCR53c7x0_init (struct Scsi_Host *host) - * - * Purpose : initialize the internal structures for a given SCSI host - * - * Inputs : host - pointer to this host adapter's structure - * - * Preconditions : when this function is called, the chip_type - * field of the hostdata structure MUST have been set. - * - * Returns : 0 on success, -1 on failure. - */ - -int -NCR53c7x0_init (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - int i, ccf; - unsigned char revision; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - /* - * There are some things which we need to know about in order to provide - * a semblance of support. Print 'em if they aren't what we expect, - * otherwise don't add to the noise. - * - * -1 means we don't know what to expect. - */ - int val, flags; - char buf[32]; - int expected_id = -1; - int expected_clock = -1; - int uninitialized = 0; -#ifdef NO_IO_SPACE - int expected_mapping = OPTION_MEMORY_MAPPED; -#else - int expected_mapping = OPTION_IO_MAPPED; -#endif - for (i=0;i<7;i++) - hostdata->valid_ids[i] = 1; /* Default all ID's to scan */ - - /* Parse commandline flags */ - if (check_setup_strings("noasync",&flags,&val,buf)) - { - hostdata->options |= OPTION_NO_ASYNC; - hostdata->options &= ~(OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS); - } - - if (check_setup_strings("nosync",&flags,&val,buf)) - { - hostdata->options &= ~(OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS); - } - - if (check_setup_strings("nodisconnect",&flags,&val,buf)) - hostdata->options &= ~OPTION_DISCONNECT; - - if (check_setup_strings("validids",&flags,&val,buf)) - { - for (i=0;i<7;i++) - hostdata->valid_ids[i] = val & (1<options = (long long)val << 32; - if (check_setup_strings("optlo",&flags,&val,buf)) - hostdata->options |= val; - - NCR53c7x0_local_setup(host); - switch (hostdata->chip) { - case 710: - case 770: - hostdata->dstat_sir_intr = NCR53c7x0_dstat_sir_intr; - hostdata->init_save_regs = NULL; - hostdata->dsa_fixup = NCR53c7xx_dsa_fixup; - hostdata->init_fixup = NCR53c7x0_init_fixup; - hostdata->soft_reset = NCR53c7x0_soft_reset; - hostdata->run_tests = NCR53c7xx_run_tests; - expected_clock = hostdata->scsi_clock; - expected_id = 7; - break; - default: - printk ("scsi%d : chip type of %d is not supported yet, detaching.\n", - host->host_no, hostdata->chip); - scsi_unregister (host); - return -1; - } - - /* Assign constants accessed by NCR */ - hostdata->NCR53c7xx_zero = 0; - hostdata->NCR53c7xx_msg_reject = MESSAGE_REJECT; - hostdata->NCR53c7xx_msg_abort = ABORT; - hostdata->NCR53c7xx_msg_nop = NOP; - hostdata->NOP_insn = (DCMD_TYPE_TCI|DCMD_TCI_OP_JUMP) << 24; - if (expected_mapping == -1 || - (hostdata->options & (OPTION_MEMORY_MAPPED)) != - (expected_mapping & OPTION_MEMORY_MAPPED)) - printk ("scsi%d : using %s mapped access\n", host->host_no, - (hostdata->options & OPTION_MEMORY_MAPPED) ? "memory" : - "io"); - - hostdata->dmode = (hostdata->chip == 700 || hostdata->chip == 70066) ? - DMODE_REG_00 : DMODE_REG_10; - hostdata->istat = ((hostdata->chip / 100) == 8) ? - ISTAT_REG_800 : ISTAT_REG_700; - -/* We have to assume that this may be the first access to the chip, so - * we must set EA in DCNTL. */ - - NCR53c7x0_write8 (DCNTL_REG, DCNTL_10_EA|DCNTL_10_COM); - - -/* Only the ISTAT register is readable when the NCR is running, so make - sure it's halted. */ - ncr_halt(host); - -/* - * XXX - the NCR53c700 uses bitfielded registers for SCID, SDID, etc, - * as does the 710 with one bit per SCSI ID. Conversely, the NCR - * uses a normal, 3 bit binary representation of these values. - * - * Get the rest of the NCR documentation, and FIND OUT where the change - * was. - */ - -#if 0 - /* May not be able to do this - chip my not have been set up yet */ - tmp = hostdata->this_id_mask = NCR53c7x0_read8(SCID_REG); - for (host->this_id = 0; tmp != 1; tmp >>=1, ++host->this_id); -#else - host->this_id = 7; -#endif - -/* - * Note : we should never encounter a board setup for ID0. So, - * if we see ID0, assume that it was uninitialized and set it - * to the industry standard 7. - */ - if (!host->this_id) { - printk("scsi%d : initiator ID was %d, changing to 7\n", - host->host_no, host->this_id); - host->this_id = 7; - hostdata->this_id_mask = 1 << 7; - uninitialized = 1; - }; - - if (expected_id == -1 || host->this_id != expected_id) - printk("scsi%d : using initiator ID %d\n", host->host_no, - host->this_id); - - /* - * Save important registers to allow a soft reset. - */ - - /* - * CTEST7 controls cache snooping, burst mode, and support for - * external differential drivers. This isn't currently used - the - * default value may not be optimal anyway. - * Even worse, it may never have been set up since reset. - */ - hostdata->saved_ctest7 = NCR53c7x0_read8(CTEST7_REG) & CTEST7_SAVE; - revision = (NCR53c7x0_read8(CTEST8_REG) & 0xF0) >> 4; - switch (revision) { - case 1: revision = 0; break; - case 2: revision = 1; break; - case 4: revision = 2; break; - case 8: revision = 3; break; - default: revision = 255; break; - } - printk("scsi%d: Revision 0x%x\n",host->host_no,revision); - - if ((revision == 0 || revision == 255) && (hostdata->options & (OPTION_SYNCHRONOUS|OPTION_DISCONNECT|OPTION_ALWAYS_SYNCHRONOUS))) - { - printk ("scsi%d: Disabling sync working and disconnect/reselect\n", - host->host_no); - hostdata->options &= ~(OPTION_SYNCHRONOUS|OPTION_DISCONNECT|OPTION_ALWAYS_SYNCHRONOUS); - } - - /* - * On NCR53c700 series chips, DCNTL controls the SCSI clock divisor, - * on 800 series chips, it allows for a totem-pole IRQ driver. - * NOTE saved_dcntl currently overwritten in init function. - * The value read here may be garbage anyway, MVME16x board at least - * does not initialise chip if kernel arrived via tftp. - */ - - hostdata->saved_dcntl = NCR53c7x0_read8(DCNTL_REG); - - /* - * DMODE controls DMA burst length, and on 700 series chips, - * 286 mode and bus width - * NOTE: On MVME16x, chip may have been reset, so this could be a - * power-on/reset default value. - */ - hostdata->saved_dmode = NCR53c7x0_read8(hostdata->dmode); - - /* - * Now that burst length and enabled/disabled status is known, - * clue the user in on it. - */ - - ccf = clock_to_ccf_710 (expected_clock); - - for (i = 0; i < 16; ++i) - hostdata->cmd_allocated[i] = 0; - - if (hostdata->init_save_regs) - hostdata->init_save_regs (host); - if (hostdata->init_fixup) - hostdata->init_fixup (host); - - if (!the_template) { - the_template = host->hostt; - first_host = host; - } - - /* - * Linux SCSI drivers have always been plagued with initialization - * problems - some didn't work with the BIOS disabled since they expected - * initialization from it, some didn't work when the networking code - * was enabled and registers got scrambled, etc. - * - * To avoid problems like this, in the future, we will do a soft - * reset on the SCSI chip, taking it back to a sane state. - */ - - hostdata->soft_reset (host); - -#if 1 - hostdata->debug_count_limit = -1; -#else - hostdata->debug_count_limit = 1; -#endif - hostdata->intrs = -1; - hostdata->resets = -1; - memcpy ((void *) hostdata->synchronous_want, (void *) sdtr_message, - sizeof (hostdata->synchronous_want)); - - NCR53c7x0_driver_init (host); - - if (request_irq(host->irq, NCR53c7x0_intr, IRQF_SHARED, "53c7xx", host)) - { - printk("scsi%d : IRQ%d not free, detaching\n", - host->host_no, host->irq); - goto err_unregister; - } - - if ((hostdata->run_tests && hostdata->run_tests(host) == -1) || - (hostdata->options & OPTION_DEBUG_TESTS_ONLY)) { - /* XXX Should disable interrupts, etc. here */ - goto err_free_irq; - } else { - if (host->io_port) { - host->n_io_port = 128; - if (!request_region (host->io_port, host->n_io_port, "ncr53c7xx")) - goto err_free_irq; - } - } - - if (NCR53c7x0_read8 (SBCL_REG) & SBCL_BSY) { - printk ("scsi%d : bus wedge, doing SCSI reset\n", host->host_no); - hard_reset (host); - } - return 0; - - err_free_irq: - free_irq(host->irq, NCR53c7x0_intr); - err_unregister: - scsi_unregister(host); - return -1; -} - -/* - * Function : int ncr53c7xx_init(struct scsi_host_template *tpnt, int board, int chip, - * unsigned long base, int io_port, int irq, int dma, long long options, - * int clock); - * - * Purpose : initializes a NCR53c7,8x0 based on base addresses, - * IRQ, and DMA channel. - * - * Inputs : tpnt - Template for this SCSI adapter, board - board level - * product, chip - 710 - * - * Returns : 0 on success, -1 on failure. - * - */ - -int -ncr53c7xx_init (struct scsi_host_template *tpnt, int board, int chip, - unsigned long base, int io_port, int irq, int dma, - long long options, int clock) -{ - struct Scsi_Host *instance; - struct NCR53c7x0_hostdata *hostdata; - char chip_str[80]; - int script_len = 0, dsa_len = 0, size = 0, max_cmd_size = 0, - schedule_size = 0, ok = 0; - void *tmp; - unsigned long page; - - switch (chip) { - case 710: - case 770: - schedule_size = (tpnt->can_queue + 1) * 8 /* JUMP instruction size */; - script_len = NCR53c7xx_script_len; - dsa_len = NCR53c7xx_dsa_len; - options |= OPTION_INTFLY; - sprintf (chip_str, "NCR53c%d", chip); - break; - default: - printk("scsi-ncr53c7xx : unsupported SCSI chip %d\n", chip); - return -1; - } - - printk("scsi-ncr53c7xx : %s at memory 0x%lx, io 0x%x, irq %d", - chip_str, base, io_port, irq); - if (dma == DMA_NONE) - printk("\n"); - else - printk(", dma %d\n", dma); - - if (options & OPTION_DEBUG_PROBE_ONLY) { - printk ("scsi-ncr53c7xx : probe only enabled, aborting initialization\n"); - return -1; - } - - max_cmd_size = sizeof(struct NCR53c7x0_cmd) + dsa_len + - /* Size of dynamic part of command structure : */ - 2 * /* Worst case : we don't know if we need DATA IN or DATA out */ - ( 2 * /* Current instructions per scatter/gather segment */ - tpnt->sg_tablesize + - 3 /* Current startup / termination required per phase */ - ) * - 8 /* Each instruction is eight bytes */; - - /* Allocate fixed part of hostdata, dynamic part to hold appropriate - SCSI SCRIPT(tm) plus a single, maximum-sized NCR53c7x0_cmd structure. - - We need a NCR53c7x0_cmd structure for scan_scsis() when we are - not loaded as a module, and when we're loaded as a module, we - can't use a non-dynamically allocated structure because modules - are vmalloc()'d, which can allow structures to cross page - boundaries and breaks our physical/virtual address assumptions - for DMA. - - So, we stick it past the end of our hostdata structure. - - ASSUMPTION : - Regardless of how many simultaneous SCSI commands we allow, - the probe code only executes a _single_ instruction at a time, - so we only need one here, and don't need to allocate NCR53c7x0_cmd - structures for each target until we are no longer in scan_scsis - and kmalloc() has become functional (memory_init() happens - after all device driver initialization). - */ - - size = sizeof(struct NCR53c7x0_hostdata) + script_len + - /* Note that alignment will be guaranteed, since we put the command - allocated at probe time after the fixed-up SCSI script, which - consists of 32 bit words, aligned on a 32 bit boundary. But - on a 64bit machine we need 8 byte alignment for hostdata->free, so - we add in another 4 bytes to take care of potential misalignment - */ - (sizeof(void *) - sizeof(u32)) + max_cmd_size + schedule_size; - - page = __get_free_pages(GFP_ATOMIC,1); - if(page==0) - { - printk(KERN_ERR "53c7xx: out of memory.\n"); - return -ENOMEM; - } -#ifdef FORCE_DSA_ALIGNMENT - /* - * 53c710 rev.0 doesn't have an add-with-carry instruction. - * Ensure we allocate enough memory to force DSA alignment. - */ - size += 256; -#endif - /* Size should be < 8K, so we can fit it in two pages. */ - if (size > 8192) { - printk(KERN_ERR "53c7xx: hostdata > 8K\n"); - return -1; - } - - instance = scsi_register (tpnt, 4); - if (!instance) - { - free_page(page); - return -1; - } - instance->hostdata[0] = page; - memset((void *)instance->hostdata[0], 0, 8192); - cache_push(virt_to_phys((void *)(instance->hostdata[0])), 8192); - cache_clear(virt_to_phys((void *)(instance->hostdata[0])), 8192); - kernel_set_cachemode((void *)instance->hostdata[0], 8192, IOMAP_NOCACHE_SER); - - /* FIXME : if we ever support an ISA NCR53c7xx based board, we - need to check if the chip is running in a 16 bit mode, and if so - unregister it if it is past the 16M (0x1000000) mark */ - - hostdata = (struct NCR53c7x0_hostdata *)instance->hostdata[0]; - hostdata->size = size; - hostdata->script_count = script_len / sizeof(u32); - hostdata->board = board; - hostdata->chip = chip; - - /* - * Being memory mapped is more desirable, since - * - * - Memory accesses may be faster. - * - * - The destination and source address spaces are the same for - * all instructions, meaning we don't have to twiddle dmode or - * any other registers. - * - * So, we try for memory mapped, and if we don't get it, - * we go for port mapped, and that failing we tell the user - * it can't work. - */ - - if (base) { - instance->base = base; - /* Check for forced I/O mapping */ - if (!(options & OPTION_IO_MAPPED)) { - options |= OPTION_MEMORY_MAPPED; - ok = 1; - } - } else { - options &= ~OPTION_MEMORY_MAPPED; - } - - if (io_port) { - instance->io_port = io_port; - options |= OPTION_IO_MAPPED; - ok = 1; - } else { - options &= ~OPTION_IO_MAPPED; - } - - if (!ok) { - printk ("scsi%d : not initializing, no I/O or memory mapping known \n", - instance->host_no); - scsi_unregister (instance); - return -1; - } - instance->irq = irq; - instance->dma_channel = dma; - - hostdata->options = options; - hostdata->dsa_len = dsa_len; - hostdata->max_cmd_size = max_cmd_size; - hostdata->num_cmds = 1; - hostdata->scsi_clock = clock; - /* Initialize single command */ - tmp = (hostdata->script + hostdata->script_count); -#ifdef FORCE_DSA_ALIGNMENT - { - void *t = ROUNDUP(tmp, void *); - if (((u32)t & 0xff) > CmdPageStart) - t = (void *)((u32)t + 255); - t = (void *)(((u32)t & ~0xff) + CmdPageStart); - hostdata->free = t; -#if 0 - printk ("scsi: Registered size increased by 256 to %d\n", size); - printk ("scsi: CmdPageStart = 0x%02x\n", CmdPageStart); - printk ("scsi: tmp = 0x%08x, hostdata->free set to 0x%08x\n", - (u32)tmp, (u32)t); -#endif - } -#else - hostdata->free = ROUNDUP(tmp, void *); -#endif - hostdata->free->real = tmp; - hostdata->free->size = max_cmd_size; - hostdata->free->free = NULL; - hostdata->free->next = NULL; - hostdata->extra_allocate = 0; - - /* Allocate command start code space */ - hostdata->schedule = (chip == 700 || chip == 70066) ? - NULL : (u32 *) ((char *)hostdata->free + max_cmd_size); - -/* - * For diagnostic purposes, we don't really care how fast things blaze. - * For profiling, we want to access the 800ns resolution system clock, - * using a 'C' call on the host processor. - * - * Therefore, there's no need for the NCR chip to directly manipulate - * this data, and we should put it wherever is most convenient for - * Linux. - */ - if (track_events) - hostdata->events = (struct NCR53c7x0_event *) (track_events ? - vmalloc (sizeof (struct NCR53c7x0_event) * track_events) : NULL); - else - hostdata->events = NULL; - - if (hostdata->events) { - memset ((void *) hostdata->events, 0, sizeof(struct NCR53c7x0_event) * - track_events); - hostdata->event_size = track_events; - hostdata->event_index = 0; - } else - hostdata->event_size = 0; - - return NCR53c7x0_init(instance); -} - - -/* - * Function : static void NCR53c7x0_init_fixup (struct Scsi_Host *host) - * - * Purpose : copy and fixup the SCSI SCRIPTS(tm) code for this device. - * - * Inputs : host - pointer to this host adapter's structure - * - */ - -static void -NCR53c7x0_init_fixup (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned char tmp; - int i, ncr_to_memory, memory_to_ncr; - u32 base; - NCR53c7x0_local_setup(host); - - - /* XXX - NOTE : this code MUST be made endian aware */ - /* Copy code into buffer that was allocated at detection time. */ - memcpy ((void *) hostdata->script, (void *) SCRIPT, - sizeof(SCRIPT)); - /* Fixup labels */ - for (i = 0; i < PATCHES; ++i) - hostdata->script[LABELPATCHES[i]] += - virt_to_bus(hostdata->script); - /* Fixup addresses of constants that used to be EXTERNAL */ - - patch_abs_32 (hostdata->script, 0, NCR53c7xx_msg_abort, - virt_to_bus(&(hostdata->NCR53c7xx_msg_abort))); - patch_abs_32 (hostdata->script, 0, NCR53c7xx_msg_reject, - virt_to_bus(&(hostdata->NCR53c7xx_msg_reject))); - patch_abs_32 (hostdata->script, 0, NCR53c7xx_zero, - virt_to_bus(&(hostdata->NCR53c7xx_zero))); - patch_abs_32 (hostdata->script, 0, NCR53c7xx_sink, - virt_to_bus(&(hostdata->NCR53c7xx_sink))); - patch_abs_32 (hostdata->script, 0, NOP_insn, - virt_to_bus(&(hostdata->NOP_insn))); - patch_abs_32 (hostdata->script, 0, schedule, - virt_to_bus((void *) hostdata->schedule)); - - /* Fixup references to external variables: */ - for (i = 0; i < EXTERNAL_PATCHES_LEN; ++i) - hostdata->script[EXTERNAL_PATCHES[i].offset] += - virt_to_bus(EXTERNAL_PATCHES[i].address); - - /* - * Fixup absolutes set at boot-time. - * - * All non-code absolute variables suffixed with "dsa_" and "int_" - * are constants, and need no fixup provided the assembler has done - * it for us (I don't know what the "real" NCR assembler does in - * this case, my assembler does the right magic). - */ - - patch_abs_rwri_data (hostdata->script, 0, dsa_save_data_pointer, - Ent_dsa_code_save_data_pointer - Ent_dsa_zero); - patch_abs_rwri_data (hostdata->script, 0, dsa_restore_pointers, - Ent_dsa_code_restore_pointers - Ent_dsa_zero); - patch_abs_rwri_data (hostdata->script, 0, dsa_check_reselect, - Ent_dsa_code_check_reselect - Ent_dsa_zero); - - /* - * Just for the hell of it, preserve the settings of - * Burst Length and Enable Read Line bits from the DMODE - * register. Make sure SCRIPTS start automagically. - */ - -#if defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000) - /* We know better what we want than 16xBug does! */ - tmp = DMODE_10_BL_8 | DMODE_10_FC2; -#else - tmp = NCR53c7x0_read8(DMODE_REG_10); - tmp &= (DMODE_BL_MASK | DMODE_10_FC2 | DMODE_10_FC1 | DMODE_710_PD | - DMODE_710_UO); -#endif - - if (!(hostdata->options & OPTION_MEMORY_MAPPED)) { - base = (u32) host->io_port; - memory_to_ncr = tmp|DMODE_800_DIOM; - ncr_to_memory = tmp|DMODE_800_SIOM; - } else { - base = virt_to_bus((void *)host->base); - memory_to_ncr = ncr_to_memory = tmp; - } - - /* SCRATCHB_REG_10 == SCRATCHA_REG_800, as it happens */ - patch_abs_32 (hostdata->script, 0, addr_scratch, base + SCRATCHA_REG_800); - patch_abs_32 (hostdata->script, 0, addr_temp, base + TEMP_REG); - patch_abs_32 (hostdata->script, 0, addr_dsa, base + DSA_REG); - - /* - * I needed some variables in the script to be accessible to - * both the NCR chip and the host processor. For these variables, - * I made the arbitrary decision to store them directly in the - * hostdata structure rather than in the RELATIVE area of the - * SCRIPTS. - */ - - - patch_abs_rwri_data (hostdata->script, 0, dmode_memory_to_memory, tmp); - patch_abs_rwri_data (hostdata->script, 0, dmode_memory_to_ncr, memory_to_ncr); - patch_abs_rwri_data (hostdata->script, 0, dmode_ncr_to_memory, ncr_to_memory); - - patch_abs_32 (hostdata->script, 0, msg_buf, - virt_to_bus((void *)&(hostdata->msg_buf))); - patch_abs_32 (hostdata->script, 0, reconnect_dsa_head, - virt_to_bus((void *)&(hostdata->reconnect_dsa_head))); - patch_abs_32 (hostdata->script, 0, addr_reconnect_dsa_head, - virt_to_bus((void *)&(hostdata->addr_reconnect_dsa_head))); - patch_abs_32 (hostdata->script, 0, reselected_identify, - virt_to_bus((void *)&(hostdata->reselected_identify))); -/* reselected_tag is currently unused */ -#if 0 - patch_abs_32 (hostdata->script, 0, reselected_tag, - virt_to_bus((void *)&(hostdata->reselected_tag))); -#endif - - patch_abs_32 (hostdata->script, 0, test_dest, - virt_to_bus((void*)&hostdata->test_dest)); - patch_abs_32 (hostdata->script, 0, test_src, - virt_to_bus(&hostdata->test_source)); - patch_abs_32 (hostdata->script, 0, saved_dsa, - virt_to_bus((void *)&hostdata->saved2_dsa)); - patch_abs_32 (hostdata->script, 0, emulfly, - virt_to_bus((void *)&hostdata->emulated_intfly)); - - patch_abs_rwri_data (hostdata->script, 0, dsa_check_reselect, - (unsigned char)(Ent_dsa_code_check_reselect - Ent_dsa_zero)); - -/* These are for event logging; the ncr_event enum contains the - actual interrupt numbers. */ -#ifdef A_int_EVENT_SELECT - patch_abs_32 (hostdata->script, 0, int_EVENT_SELECT, (u32) EVENT_SELECT); -#endif -#ifdef A_int_EVENT_DISCONNECT - patch_abs_32 (hostdata->script, 0, int_EVENT_DISCONNECT, (u32) EVENT_DISCONNECT); -#endif -#ifdef A_int_EVENT_RESELECT - patch_abs_32 (hostdata->script, 0, int_EVENT_RESELECT, (u32) EVENT_RESELECT); -#endif -#ifdef A_int_EVENT_COMPLETE - patch_abs_32 (hostdata->script, 0, int_EVENT_COMPLETE, (u32) EVENT_COMPLETE); -#endif -#ifdef A_int_EVENT_IDLE - patch_abs_32 (hostdata->script, 0, int_EVENT_IDLE, (u32) EVENT_IDLE); -#endif -#ifdef A_int_EVENT_SELECT_FAILED - patch_abs_32 (hostdata->script, 0, int_EVENT_SELECT_FAILED, - (u32) EVENT_SELECT_FAILED); -#endif -#ifdef A_int_EVENT_BEFORE_SELECT - patch_abs_32 (hostdata->script, 0, int_EVENT_BEFORE_SELECT, - (u32) EVENT_BEFORE_SELECT); -#endif -#ifdef A_int_EVENT_RESELECT_FAILED - patch_abs_32 (hostdata->script, 0, int_EVENT_RESELECT_FAILED, - (u32) EVENT_RESELECT_FAILED); -#endif - - /* - * Make sure the NCR and Linux code agree on the location of - * certain fields. - */ - - hostdata->E_accept_message = Ent_accept_message; - hostdata->E_command_complete = Ent_command_complete; - hostdata->E_cmdout_cmdout = Ent_cmdout_cmdout; - hostdata->E_data_transfer = Ent_data_transfer; - hostdata->E_debug_break = Ent_debug_break; - hostdata->E_dsa_code_template = Ent_dsa_code_template; - hostdata->E_dsa_code_template_end = Ent_dsa_code_template_end; - hostdata->E_end_data_transfer = Ent_end_data_transfer; - hostdata->E_initiator_abort = Ent_initiator_abort; - hostdata->E_msg_in = Ent_msg_in; - hostdata->E_other_transfer = Ent_other_transfer; - hostdata->E_other_in = Ent_other_in; - hostdata->E_other_out = Ent_other_out; - hostdata->E_reject_message = Ent_reject_message; - hostdata->E_respond_message = Ent_respond_message; - hostdata->E_select = Ent_select; - hostdata->E_select_msgout = Ent_select_msgout; - hostdata->E_target_abort = Ent_target_abort; -#ifdef Ent_test_0 - hostdata->E_test_0 = Ent_test_0; -#endif - hostdata->E_test_1 = Ent_test_1; - hostdata->E_test_2 = Ent_test_2; -#ifdef Ent_test_3 - hostdata->E_test_3 = Ent_test_3; -#endif - hostdata->E_wait_reselect = Ent_wait_reselect; - hostdata->E_dsa_code_begin = Ent_dsa_code_begin; - - hostdata->dsa_cmdout = A_dsa_cmdout; - hostdata->dsa_cmnd = A_dsa_cmnd; - hostdata->dsa_datain = A_dsa_datain; - hostdata->dsa_dataout = A_dsa_dataout; - hostdata->dsa_end = A_dsa_end; - hostdata->dsa_msgin = A_dsa_msgin; - hostdata->dsa_msgout = A_dsa_msgout; - hostdata->dsa_msgout_other = A_dsa_msgout_other; - hostdata->dsa_next = A_dsa_next; - hostdata->dsa_select = A_dsa_select; - hostdata->dsa_start = Ent_dsa_code_template - Ent_dsa_zero; - hostdata->dsa_status = A_dsa_status; - hostdata->dsa_jump_dest = Ent_dsa_code_fix_jump - Ent_dsa_zero + - 8 /* destination operand */; - - /* sanity check */ - if (A_dsa_fields_start != Ent_dsa_code_template_end - - Ent_dsa_zero) - printk("scsi%d : NCR dsa_fields start is %d not %d\n", - host->host_no, A_dsa_fields_start, Ent_dsa_code_template_end - - Ent_dsa_zero); - - printk("scsi%d : NCR code relocated to 0x%lx (virt 0x%p)\n", host->host_no, - virt_to_bus(hostdata->script), hostdata->script); -} - -/* - * Function : static int NCR53c7xx_run_tests (struct Scsi_Host *host) - * - * Purpose : run various verification tests on the NCR chip, - * including interrupt generation, and proper bus mastering - * operation. - * - * Inputs : host - a properly initialized Scsi_Host structure - * - * Preconditions : the NCR chip must be in a halted state. - * - * Returns : 0 if all tests were successful, -1 on error. - * - */ - -static int -NCR53c7xx_run_tests (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned long timeout; - u32 start; - int failed, i; - unsigned long flags; - NCR53c7x0_local_setup(host); - - /* The NCR chip _must_ be idle to run the test scripts */ - - local_irq_save(flags); - if (!hostdata->idle) { - printk ("scsi%d : chip not idle, aborting tests\n", host->host_no); - local_irq_restore(flags); - return -1; - } - - /* - * Check for functional interrupts, this could work as an - * autoprobe routine. - */ - - if ((hostdata->options & OPTION_DEBUG_TEST1) && - hostdata->state != STATE_DISABLED) { - hostdata->idle = 0; - hostdata->test_running = 1; - hostdata->test_completed = -1; - hostdata->test_dest = 0; - hostdata->test_source = 0xdeadbeef; - start = virt_to_bus (hostdata->script) + hostdata->E_test_1; - hostdata->state = STATE_RUNNING; - printk ("scsi%d : test 1", host->host_no); - NCR53c7x0_write32 (DSP_REG, start); - if (hostdata->options & OPTION_DEBUG_TRACE) - NCR53c7x0_write8 (DCNTL_REG, hostdata->saved_dcntl | DCNTL_SSM | - DCNTL_STD); - printk (" started\n"); - local_irq_restore(flags); - - /* - * This is currently a .5 second timeout, since (in theory) no slow - * board will take that long. In practice, we've seen one - * pentium which occassionally fails with this, but works with - * 10 times as much? - */ - - timeout = jiffies + 5 * HZ / 10; - while ((hostdata->test_completed == -1) && time_before(jiffies, timeout)) - barrier(); - - failed = 1; - if (hostdata->test_completed == -1) - printk ("scsi%d : driver test 1 timed out%s\n",host->host_no , - (hostdata->test_dest == 0xdeadbeef) ? - " due to lost interrupt.\n" - " Please verify that the correct IRQ is being used for your board,\n" - : ""); - else if (hostdata->test_completed != 1) - printk ("scsi%d : test 1 bad interrupt value (%d)\n", - host->host_no, hostdata->test_completed); - else - failed = (hostdata->test_dest != 0xdeadbeef); - - if (hostdata->test_dest != 0xdeadbeef) { - printk ("scsi%d : driver test 1 read 0x%x instead of 0xdeadbeef indicating a\n" - " probable cache invalidation problem. Please configure caching\n" - " as write-through or disabled\n", - host->host_no, hostdata->test_dest); - } - - if (failed) { - printk ("scsi%d : DSP = 0x%p (script at 0x%p, start at 0x%x)\n", - host->host_no, bus_to_virt(NCR53c7x0_read32(DSP_REG)), - hostdata->script, start); - printk ("scsi%d : DSPS = 0x%x\n", host->host_no, - NCR53c7x0_read32(DSPS_REG)); - local_irq_restore(flags); - return -1; - } - hostdata->test_running = 0; - } - - if ((hostdata->options & OPTION_DEBUG_TEST2) && - hostdata->state != STATE_DISABLED) { - u32 dsa[48]; - unsigned char identify = IDENTIFY(0, 0); - unsigned char cmd[6]; - unsigned char data[36]; - unsigned char status = 0xff; - unsigned char msg = 0xff; - - cmd[0] = INQUIRY; - cmd[1] = cmd[2] = cmd[3] = cmd[5] = 0; - cmd[4] = sizeof(data); - - dsa[2] = 1; - dsa[3] = virt_to_bus(&identify); - dsa[4] = 6; - dsa[5] = virt_to_bus(&cmd); - dsa[6] = sizeof(data); - dsa[7] = virt_to_bus(&data); - dsa[8] = 1; - dsa[9] = virt_to_bus(&status); - dsa[10] = 1; - dsa[11] = virt_to_bus(&msg); - - for (i = 0; i < 6; ++i) { -#ifdef VALID_IDS - if (!hostdata->valid_ids[i]) - continue; -#endif - local_irq_disable(); - if (!hostdata->idle) { - printk ("scsi%d : chip not idle, aborting tests\n", host->host_no); - local_irq_restore(flags); - return -1; - } - - /* 710: bit mapped scsi ID, async */ - dsa[0] = (1 << i) << 16; - hostdata->idle = 0; - hostdata->test_running = 2; - hostdata->test_completed = -1; - start = virt_to_bus(hostdata->script) + hostdata->E_test_2; - hostdata->state = STATE_RUNNING; - NCR53c7x0_write32 (DSA_REG, virt_to_bus(dsa)); - NCR53c7x0_write32 (DSP_REG, start); - if (hostdata->options & OPTION_DEBUG_TRACE) - NCR53c7x0_write8 (DCNTL_REG, hostdata->saved_dcntl | - DCNTL_SSM | DCNTL_STD); - local_irq_restore(flags); - - timeout = jiffies + 5 * HZ; /* arbitrary */ - while ((hostdata->test_completed == -1) && time_before(jiffies, timeout)) - barrier(); - - NCR53c7x0_write32 (DSA_REG, 0); - - if (hostdata->test_completed == 2) { - data[35] = 0; - printk ("scsi%d : test 2 INQUIRY to target %d, lun 0 : %s\n", - host->host_no, i, data + 8); - printk ("scsi%d : status ", host->host_no); - scsi_print_status (status); - printk ("\nscsi%d : message ", host->host_no); - spi_print_msg(&msg); - printk ("\n"); - } else if (hostdata->test_completed == 3) { - printk("scsi%d : test 2 no connection with target %d\n", - host->host_no, i); - if (!hostdata->idle) { - printk("scsi%d : not idle\n", host->host_no); - local_irq_restore(flags); - return -1; - } - } else if (hostdata->test_completed == -1) { - printk ("scsi%d : test 2 timed out\n", host->host_no); - local_irq_restore(flags); - return -1; - } - hostdata->test_running = 0; - } - } - - local_irq_restore(flags); - return 0; -} - -/* - * Function : static void NCR53c7xx_dsa_fixup (struct NCR53c7x0_cmd *cmd) - * - * Purpose : copy the NCR53c8xx dsa structure into cmd's dsa buffer, - * performing all necessary relocation. - * - * Inputs : cmd, a NCR53c7x0_cmd structure with a dsa area large - * enough to hold the NCR53c8xx dsa. - */ - -static void -NCR53c7xx_dsa_fixup (struct NCR53c7x0_cmd *cmd) { - Scsi_Cmnd *c = cmd->cmd; - struct Scsi_Host *host = c->device->host; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int i; - - memcpy (cmd->dsa, hostdata->script + (hostdata->E_dsa_code_template / 4), - hostdata->E_dsa_code_template_end - hostdata->E_dsa_code_template); - - /* - * Note : within the NCR 'C' code, dsa points to the _start_ - * of the DSA structure, and _not_ the offset of dsa_zero within - * that structure used to facilitate shorter signed offsets - * for the 8 bit ALU. - * - * The implications of this are that - * - * - 32 bit A_dsa_* absolute values require an additional - * dsa_zero added to their value to be correct, since they are - * relative to dsa_zero which is in essentially a separate - * space from the code symbols. - * - * - All other symbols require no special treatment. - */ - - patch_abs_tci_data (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_lun, c->device->lun); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_addr_next, virt_to_bus(&cmd->dsa_next_addr)); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_next, virt_to_bus(cmd->dsa) + Ent_dsa_zero - - Ent_dsa_code_template + A_dsa_next); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_sync, virt_to_bus((void *)hostdata->sync[c->device->id].script)); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_sscf_710, virt_to_bus((void *)&hostdata->sync[c->device->id].sscf_710)); - patch_abs_tci_data (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_target, 1 << c->device->id); - /* XXX - new pointer stuff */ - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_addr_saved_pointer, virt_to_bus(&cmd->saved_data_pointer)); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_addr_saved_residual, virt_to_bus(&cmd->saved_residual)); - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_addr_residual, virt_to_bus(&cmd->residual)); - - /* XXX - new start stuff */ - - patch_abs_32 (cmd->dsa, Ent_dsa_code_template / sizeof(u32), - dsa_temp_addr_dsa_value, virt_to_bus(&cmd->dsa_addr)); -} - -/* - * Function : run_process_issue_queue (void) - * - * Purpose : insure that the coroutine is running and will process our - * request. process_issue_queue_running is checked/set here (in an - * inline function) rather than in process_issue_queue itself to reduce - * the chances of stack overflow. - * - */ - -static volatile int process_issue_queue_running = 0; - -static __inline__ void -run_process_issue_queue(void) { - unsigned long flags; - local_irq_save(flags); - if (!process_issue_queue_running) { - process_issue_queue_running = 1; - process_issue_queue(flags); - /* - * process_issue_queue_running is cleared in process_issue_queue - * once it can't do more work, and process_issue_queue exits with - * interrupts disabled. - */ - } - local_irq_restore(flags); -} - -/* - * Function : static void abnormal_finished (struct NCR53c7x0_cmd *cmd, int - * result) - * - * Purpose : mark SCSI command as finished, OR'ing the host portion - * of the result word into the result field of the corresponding - * Scsi_Cmnd structure, and removing it from the internal queues. - * - * Inputs : cmd - command, result - entire result field - * - * Preconditions : the NCR chip should be in a halted state when - * abnormal_finished is run, since it modifies structures which - * the NCR expects to have exclusive access to. - */ - -static void -abnormal_finished (struct NCR53c7x0_cmd *cmd, int result) { - Scsi_Cmnd *c = cmd->cmd; - struct Scsi_Host *host = c->device->host; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned long flags; - int left, found; - volatile struct NCR53c7x0_cmd * linux_search; - volatile struct NCR53c7x0_cmd * volatile *linux_prev; - volatile u32 *ncr_prev, *ncrcurrent, ncr_search; - -#if 0 - printk ("scsi%d: abnormal finished\n", host->host_no); -#endif - - local_irq_save(flags); - found = 0; - /* - * Traverse the NCR issue array until we find a match or run out - * of instructions. Instructions in the NCR issue array are - * either JUMP or NOP instructions, which are 2 words in length. - */ - - - for (found = 0, left = host->can_queue, ncrcurrent = hostdata->schedule; - left > 0; --left, ncrcurrent += 2) - { - if (issue_to_cmd (host, hostdata, (u32 *) ncrcurrent) == cmd) - { - ncrcurrent[0] = hostdata->NOP_insn; - ncrcurrent[1] = 0xdeadbeef; - ++found; - break; - } - } - - /* - * Traverse the NCR reconnect list of DSA structures until we find - * a pointer to this dsa or have found too many command structures. - * We let prev point at the next field of the previous element or - * head of the list, so we don't do anything different for removing - * the head element. - */ - - for (left = host->can_queue, - ncr_search = hostdata->reconnect_dsa_head, - ncr_prev = &hostdata->reconnect_dsa_head; - left >= 0 && ncr_search && - ((char*)bus_to_virt(ncr_search) + hostdata->dsa_start) - != (char *) cmd->dsa; - ncr_prev = (u32*) ((char*)bus_to_virt(ncr_search) + - hostdata->dsa_next), ncr_search = *ncr_prev, --left); - - if (left < 0) - printk("scsi%d: loop detected in ncr reconncect list\n", - host->host_no); - else if (ncr_search) { - if (found) - printk("scsi%d: scsi %ld in ncr issue array and reconnect lists\n", - host->host_no, c->pid); - else { - volatile u32 * next = (u32 *) - ((char *)bus_to_virt(ncr_search) + hostdata->dsa_next); - *ncr_prev = *next; -/* If we're at the tail end of the issue queue, update that pointer too. */ - found = 1; - } - } - - /* - * Traverse the host running list until we find this command or discover - * we have too many elements, pointing linux_prev at the next field of the - * linux_previous element or head of the list, search at this element. - */ - - for (left = host->can_queue, linux_search = hostdata->running_list, - linux_prev = &hostdata->running_list; - left >= 0 && linux_search && linux_search != cmd; - linux_prev = &(linux_search->next), - linux_search = linux_search->next, --left); - - if (left < 0) - printk ("scsi%d: loop detected in host running list for scsi pid %ld\n", - host->host_no, c->pid); - else if (linux_search) { - *linux_prev = linux_search->next; - --hostdata->busy[c->device->id][c->device->lun]; - } - - /* Return the NCR command structure to the free list */ - cmd->next = hostdata->free; - hostdata->free = cmd; - c->host_scribble = NULL; - - /* And return */ - c->result = result; - c->scsi_done(c); - - local_irq_restore(flags); - run_process_issue_queue(); -} - -/* - * Function : static void intr_break (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : Handler for breakpoint interrupts from a SCSI script - * - * Inputs : host - pointer to this host adapter's structure, - * cmd - pointer to the command (if any) dsa was pointing - * to. - * - */ - -static void -intr_break (struct Scsi_Host *host, struct - NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_break *bp; -#if 0 - Scsi_Cmnd *c = cmd ? cmd->cmd : NULL; -#endif - u32 *dsp; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned long flags; - NCR53c7x0_local_setup(host); - - /* - * Find the break point corresponding to this address, and - * dump the appropriate debugging information to standard - * output. - */ - local_irq_save(flags); - dsp = (u32 *) bus_to_virt(NCR53c7x0_read32(DSP_REG)); - for (bp = hostdata->breakpoints; bp && bp->address != dsp; - bp = bp->next); - if (!bp) - panic("scsi%d : break point interrupt from %p with no breakpoint!", - host->host_no, dsp); - - /* - * Configure the NCR chip for manual start mode, so that we can - * point the DSP register at the instruction that follows the - * INT int_debug_break instruction. - */ - - NCR53c7x0_write8 (hostdata->dmode, - NCR53c7x0_read8(hostdata->dmode)|DMODE_MAN); - - /* - * And update the DSP register, using the size of the old - * instruction in bytes. - */ - - local_irq_restore(flags); -} -/* - * Function : static void print_synchronous (const char *prefix, - * const unsigned char *msg) - * - * Purpose : print a pretty, user and machine parsable representation - * of a SDTR message, including the "real" parameters, data - * clock so we can tell transfer rate at a glance. - * - * Inputs ; prefix - text to prepend, msg - SDTR message (5 bytes) - */ - -static void -print_synchronous (const char *prefix, const unsigned char *msg) { - if (msg[4]) { - int Hz = 1000000000 / (msg[3] * 4); - int integer = Hz / 1000000; - int fraction = (Hz - (integer * 1000000)) / 10000; - printk ("%speriod %dns offset %d %d.%02dMHz %s SCSI%s\n", - prefix, (int) msg[3] * 4, (int) msg[4], integer, fraction, - (((msg[3] * 4) < 200) ? "FAST" : "synchronous"), - (((msg[3] * 4) < 200) ? "-II" : "")); - } else - printk ("%sasynchronous SCSI\n", prefix); -} - -/* - * Function : static void set_synchronous (struct Scsi_Host *host, - * int target, int sxfer, int scntl3, int now_connected) - * - * Purpose : reprogram transfers between the selected SCSI initiator and - * target with the given register values; in the indirect - * select operand, reselection script, and chip registers. - * - * Inputs : host - NCR53c7,8xx SCSI host, target - number SCSI target id, - * sxfer and scntl3 - NCR registers. now_connected - if non-zero, - * we should reprogram the registers now too. - * - * NOTE: For 53c710, scntl3 is actually used for SCF bits from - * SBCL, as we don't have a SCNTL3. - */ - -static void -set_synchronous (struct Scsi_Host *host, int target, int sxfer, int scntl3, - int now_connected) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - u32 *script; - NCR53c7x0_local_setup(host); - - /* These are eight bit registers */ - sxfer &= 0xff; - scntl3 &= 0xff; - - hostdata->sync[target].sxfer_sanity = sxfer; - hostdata->sync[target].scntl3_sanity = scntl3; - -/* - * HARD CODED : synchronous script is EIGHT words long. This - * must agree with 53c7.8xx.h - */ - - if ((hostdata->chip != 700) && (hostdata->chip != 70066)) { - hostdata->sync[target].select_indirect = (1 << target) << 16 | - (sxfer << 8); - hostdata->sync[target].sscf_710 = scntl3; - - script = (u32 *) hostdata->sync[target].script; - - /* XXX - add NCR53c7x0 code to reprogram SCF bits if we want to */ - script[0] = ((DCMD_TYPE_RWRI | DCMD_RWRI_OPC_MODIFY | - DCMD_RWRI_OP_MOVE) << 24) | - (SBCL_REG << 16) | (scntl3 << 8); - script[1] = 0; - script += 2; - - script[0] = ((DCMD_TYPE_RWRI | DCMD_RWRI_OPC_MODIFY | - DCMD_RWRI_OP_MOVE) << 24) | - (SXFER_REG << 16) | (sxfer << 8); - script[1] = 0; - script += 2; - -#ifdef DEBUG_SYNC_INTR - if (hostdata->options & OPTION_DEBUG_DISCONNECT) { - script[0] = ((DCMD_TYPE_TCI|DCMD_TCI_OP_INT) << 24) | DBC_TCI_TRUE; - script[1] = DEBUG_SYNC_INTR; - script += 2; - } -#endif - - script[0] = ((DCMD_TYPE_TCI|DCMD_TCI_OP_RETURN) << 24) | DBC_TCI_TRUE; - script[1] = 0; - script += 2; - } - - if (hostdata->options & OPTION_DEBUG_SYNCHRONOUS) - printk ("scsi%d : target %d sync parameters are sxfer=0x%x, scntl3=0x%x\n", - host->host_no, target, sxfer, scntl3); - - if (now_connected) { - NCR53c7x0_write8(SBCL_REG, scntl3); - NCR53c7x0_write8(SXFER_REG, sxfer); - } -} - - -/* - * Function : static int asynchronous (struct Scsi_Host *host, int target) - * - * Purpose : reprogram between the selected SCSI Host adapter and target - * (assumed to be currently connected) for asynchronous transfers. - * - * Inputs : host - SCSI host structure, target - numeric target ID. - * - * Preconditions : the NCR chip should be in one of the halted states - */ - -static void -asynchronous (struct Scsi_Host *host, int target) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - NCR53c7x0_local_setup(host); - set_synchronous (host, target, /* no offset */ 0, hostdata->saved_scntl3, - 1); - printk ("scsi%d : setting target %d to asynchronous SCSI\n", - host->host_no, target); -} - -/* - * XXX - do we want to go out of our way (ie, add extra code to selection - * in the NCR53c710/NCR53c720 script) to reprogram the synchronous - * conversion bits, or can we be content in just setting the - * sxfer bits? I chose to do so [richard@sleepie.demon.co.uk] - */ - -/* Table for NCR53c8xx synchronous values */ - -/* This table is also correct for 710, allowing that scf=4 is equivalent - * of SSCF=0 (ie use DCNTL, divide by 3) for a 50.01-66.00MHz clock. - * For any other clock values, we cannot use entries with SCF values of - * 4. I guess that for a 66MHz clock, the slowest it will set is 2MHz, - * and for a 50MHz clock, the slowest will be 2.27Mhz. Should check - * that a device doesn't try and negotiate sync below these limits! - */ - -static const struct { - int div; /* Total clock divisor * 10 */ - unsigned char scf; /* */ - unsigned char tp; /* 4 + tp = xferp divisor */ -} syncs[] = { -/* div scf tp div scf tp div scf tp */ - { 40, 1, 0}, { 50, 1, 1}, { 60, 1, 2}, - { 70, 1, 3}, { 75, 2, 1}, { 80, 1, 4}, - { 90, 1, 5}, { 100, 1, 6}, { 105, 2, 3}, - { 110, 1, 7}, { 120, 2, 4}, { 135, 2, 5}, - { 140, 3, 3}, { 150, 2, 6}, { 160, 3, 4}, - { 165, 2, 7}, { 180, 3, 5}, { 200, 3, 6}, - { 210, 4, 3}, { 220, 3, 7}, { 240, 4, 4}, - { 270, 4, 5}, { 300, 4, 6}, { 330, 4, 7} -}; - -/* - * Function : static void synchronous (struct Scsi_Host *host, int target, - * char *msg) - * - * Purpose : reprogram transfers between the selected SCSI initiator and - * target for synchronous SCSI transfers such that the synchronous - * offset is less than that requested and period at least as long - * as that requested. Also modify *msg such that it contains - * an appropriate response. - * - * Inputs : host - NCR53c7,8xx SCSI host, target - number SCSI target id, - * msg - synchronous transfer request. - */ - - -static void -synchronous (struct Scsi_Host *host, int target, char *msg) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int desire, divisor, i, limit; - unsigned char scntl3, sxfer; -/* The diagnostic message fits on one line, even with max. width integers */ - char buf[80]; - -/* Desired transfer clock in Hz */ - desire = 1000000000L / (msg[3] * 4); -/* Scale the available SCSI clock by 10 so we get tenths */ - divisor = (hostdata->scsi_clock * 10) / desire; - -/* NCR chips can handle at most an offset of 8 */ - if (msg[4] > 8) - msg[4] = 8; - - if (hostdata->options & OPTION_DEBUG_SDTR) - printk("scsi%d : optimal synchronous divisor of %d.%01d\n", - host->host_no, divisor / 10, divisor % 10); - - limit = ARRAY_SIZE(syncs) - 1; - for (i = 0; (i < limit) && (divisor > syncs[i].div); ++i); - - if (hostdata->options & OPTION_DEBUG_SDTR) - printk("scsi%d : selected synchronous divisor of %d.%01d\n", - host->host_no, syncs[i].div / 10, syncs[i].div % 10); - - msg[3] = ((1000000000L / hostdata->scsi_clock) * syncs[i].div / 10 / 4); - - if (hostdata->options & OPTION_DEBUG_SDTR) - printk("scsi%d : selected synchronous period of %dns\n", host->host_no, - msg[3] * 4); - - scntl3 = syncs[i].scf; - sxfer = (msg[4] << SXFER_MO_SHIFT) | (syncs[i].tp << 4); - if (hostdata->options & OPTION_DEBUG_SDTR) - printk ("scsi%d : sxfer=0x%x scntl3=0x%x\n", - host->host_no, (int) sxfer, (int) scntl3); - set_synchronous (host, target, sxfer, scntl3, 1); - sprintf (buf, "scsi%d : setting target %d to ", host->host_no, target); - print_synchronous (buf, msg); -} - -/* - * Function : static int NCR53c7x0_dstat_sir_intr (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : Handler for INT generated instructions for the - * NCR53c810/820 SCSI SCRIPT - * - * Inputs : host - pointer to this host adapter's structure, - * cmd - pointer to the command (if any) dsa was pointing - * to. - * - */ - -static int -NCR53c7x0_dstat_sir_intr (struct Scsi_Host *host, struct - NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - int print; - Scsi_Cmnd *c = cmd ? cmd->cmd : NULL; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - u32 dsps,*dsp; /* Argument of the INT instruction */ - - NCR53c7x0_local_setup(host); - dsps = NCR53c7x0_read32(DSPS_REG); - dsp = (u32 *) bus_to_virt(NCR53c7x0_read32(DSP_REG)); - - /* RGH 150597: Frig. Commands which fail with Check Condition are - * Flagged as successful - hack dsps to indicate check condition */ -#if 0 - /* RGH 200597: Need to disable for BVME6000, as it gets Check Conditions - * and then dies. Seems to handle Check Condition at startup, but - * not mid kernel build. */ - if (dsps == A_int_norm_emulateintfly && cmd && cmd->result == 2) - dsps = A_int_err_check_condition; -#endif - - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : DSPS = 0x%x\n", host->host_no, dsps); - - switch (dsps) { - case A_int_msg_1: - print = 1; - switch (hostdata->msg_buf[0]) { - /* - * Unless we've initiated synchronous negotiation, I don't - * think that this should happen. - */ - case MESSAGE_REJECT: - hostdata->dsp = hostdata->script + hostdata->E_accept_message / - sizeof(u32); - hostdata->dsp_changed = 1; - if (cmd && (cmd->flags & CMD_FLAG_SDTR)) { - printk ("scsi%d : target %d rejected SDTR\n", host->host_no, - c->device->id); - cmd->flags &= ~CMD_FLAG_SDTR; - asynchronous (host, c->device->id); - print = 0; - } - break; - case INITIATE_RECOVERY: - printk ("scsi%d : extended contingent allegiance not supported yet, rejecting\n", - host->host_no); - /* Fall through to default */ - hostdata->dsp = hostdata->script + hostdata->E_reject_message / - sizeof(u32); - hostdata->dsp_changed = 1; - break; - default: - printk ("scsi%d : unsupported message, rejecting\n", - host->host_no); - hostdata->dsp = hostdata->script + hostdata->E_reject_message / - sizeof(u32); - hostdata->dsp_changed = 1; - } - if (print) { - printk ("scsi%d : received message", host->host_no); - if (c) - printk (" from target %d lun %d ", c->device->id, c->device->lun); - spi_print_msg((unsigned char *) hostdata->msg_buf); - printk("\n"); - } - - return SPECIFIC_INT_NOTHING; - - - case A_int_msg_sdtr: -/* - * At this point, hostdata->msg_buf contains - * 0 EXTENDED MESSAGE - * 1 length - * 2 SDTR - * 3 period * 4ns - * 4 offset - */ - - if (cmd) { - char buf[80]; - sprintf (buf, "scsi%d : target %d %s ", host->host_no, c->device->id, - (cmd->flags & CMD_FLAG_SDTR) ? "accepting" : "requesting"); - print_synchronous (buf, (unsigned char *) hostdata->msg_buf); - - /* - * Initiator initiated, won't happen unless synchronous - * transfers are enabled. If we get a SDTR message in - * response to our SDTR, we should program our parameters - * such that - * offset <= requested offset - * period >= requested period - */ - if (cmd->flags & CMD_FLAG_SDTR) { - cmd->flags &= ~CMD_FLAG_SDTR; - if (hostdata->msg_buf[4]) - synchronous (host, c->device->id, (unsigned char *) - hostdata->msg_buf); - else - asynchronous (host, c->device->id); - hostdata->dsp = hostdata->script + hostdata->E_accept_message / - sizeof(u32); - hostdata->dsp_changed = 1; - return SPECIFIC_INT_NOTHING; - } else { - if (hostdata->options & OPTION_SYNCHRONOUS) { - cmd->flags |= CMD_FLAG_DID_SDTR; - synchronous (host, c->device->id, (unsigned char *) - hostdata->msg_buf); - } else { - hostdata->msg_buf[4] = 0; /* 0 offset = async */ - asynchronous (host, c->device->id); - } - patch_dsa_32 (cmd->dsa, dsa_msgout_other, 0, 5); - patch_dsa_32 (cmd->dsa, dsa_msgout_other, 1, (u32) - virt_to_bus ((void *)&hostdata->msg_buf)); - hostdata->dsp = hostdata->script + - hostdata->E_respond_message / sizeof(u32); - hostdata->dsp_changed = 1; - } - return SPECIFIC_INT_NOTHING; - } - /* Fall through to abort if we couldn't find a cmd, and - therefore a dsa structure to twiddle */ - case A_int_msg_wdtr: - hostdata->dsp = hostdata->script + hostdata->E_reject_message / - sizeof(u32); - hostdata->dsp_changed = 1; - return SPECIFIC_INT_NOTHING; - case A_int_err_unexpected_phase: - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : unexpected phase\n", host->host_no); - return SPECIFIC_INT_ABORT; - case A_int_err_selected: - if ((hostdata->chip / 100) == 8) - printk ("scsi%d : selected by target %d\n", host->host_no, - (int) NCR53c7x0_read8(SDID_REG_800) &7); - else - printk ("scsi%d : selected by target LCRC=0x%02x\n", host->host_no, - (int) NCR53c7x0_read8(LCRC_REG_10)); - hostdata->dsp = hostdata->script + hostdata->E_target_abort / - sizeof(u32); - hostdata->dsp_changed = 1; - return SPECIFIC_INT_NOTHING; - case A_int_err_unexpected_reselect: - if ((hostdata->chip / 100) == 8) - printk ("scsi%d : unexpected reselect by target %d lun %d\n", - host->host_no, (int) NCR53c7x0_read8(SDID_REG_800) & 7, - hostdata->reselected_identify & 7); - else - printk ("scsi%d : unexpected reselect LCRC=0x%02x\n", host->host_no, - (int) NCR53c7x0_read8(LCRC_REG_10)); - hostdata->dsp = hostdata->script + hostdata->E_initiator_abort / - sizeof(u32); - hostdata->dsp_changed = 1; - return SPECIFIC_INT_NOTHING; -/* - * Since contingent allegiance conditions are cleared by the next - * command issued to a target, we must issue a REQUEST SENSE - * command after receiving a CHECK CONDITION status, before - * another command is issued. - * - * Since this NCR53c7x0_cmd will be freed after use, we don't - * care if we step on the various fields, so modify a few things. - */ - case A_int_err_check_condition: -#if 0 - if (hostdata->options & OPTION_DEBUG_INTR) -#endif - printk ("scsi%d : CHECK CONDITION\n", host->host_no); - if (!c) { - printk("scsi%d : CHECK CONDITION with no SCSI command\n", - host->host_no); - return SPECIFIC_INT_PANIC; - } - - /* - * FIXME : this uses the normal one-byte selection message. - * We may want to renegotiate for synchronous & WIDE transfers - * since these could be the crux of our problem. - * - hostdata->NOP_insn* FIXME : once SCSI-II tagged queuing is implemented, we'll - * have to set this up so that the rest of the DSA - * agrees with this being an untagged queue'd command. - */ - - patch_dsa_32 (cmd->dsa, dsa_msgout, 0, 1); - - /* - * Modify the table indirect for COMMAND OUT phase, since - * Request Sense is a six byte command. - */ - - patch_dsa_32 (cmd->dsa, dsa_cmdout, 0, 6); - - /* - * The CDB is now mirrored in our local non-cached - * structure, but keep the old structure up to date as well, - * just in case anyone looks at it. - */ - - /* - * XXX Need to worry about data buffer alignment/cache state - * XXX here, but currently never get A_int_err_check_condition, - * XXX so ignore problem for now. - */ - cmd->cmnd[0] = c->cmnd[0] = REQUEST_SENSE; - cmd->cmnd[0] = c->cmnd[1] &= 0xe0; /* Zero all but LUN */ - cmd->cmnd[0] = c->cmnd[2] = 0; - cmd->cmnd[0] = c->cmnd[3] = 0; - cmd->cmnd[0] = c->cmnd[4] = sizeof(c->sense_buffer); - cmd->cmnd[0] = c->cmnd[5] = 0; - - /* - * Disable dataout phase, and program datain to transfer to the - * sense buffer, and add a jump to other_transfer after the - * command so overflow/underrun conditions are detected. - */ - - patch_dsa_32 (cmd->dsa, dsa_dataout, 0, - virt_to_bus(hostdata->script) + hostdata->E_other_transfer); - patch_dsa_32 (cmd->dsa, dsa_datain, 0, - virt_to_bus(cmd->data_transfer_start)); - cmd->data_transfer_start[0] = (((DCMD_TYPE_BMI | DCMD_BMI_OP_MOVE_I | - DCMD_BMI_IO)) << 24) | sizeof(c->sense_buffer); - cmd->data_transfer_start[1] = (u32) virt_to_bus(c->sense_buffer); - - cmd->data_transfer_start[2] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_JUMP) - << 24) | DBC_TCI_TRUE; - cmd->data_transfer_start[3] = (u32) virt_to_bus(hostdata->script) + - hostdata->E_other_transfer; - - /* - * Currently, this command is flagged as completed, ie - * it has valid status and message data. Reflag it as - * incomplete. Q - need to do something so that original - * status, etc are used. - */ - - cmd->result = cmd->cmd->result = 0xffff; - - /* - * Restart command as a REQUEST SENSE. - */ - hostdata->dsp = (u32 *) hostdata->script + hostdata->E_select / - sizeof(u32); - hostdata->dsp_changed = 1; - return SPECIFIC_INT_NOTHING; - case A_int_debug_break: - return SPECIFIC_INT_BREAK; - case A_int_norm_aborted: - hostdata->dsp = (u32 *) hostdata->schedule; - hostdata->dsp_changed = 1; - if (cmd) - abnormal_finished (cmd, DID_ERROR << 16); - return SPECIFIC_INT_NOTHING; - case A_int_norm_emulateintfly: - NCR53c7x0_intfly(host); - return SPECIFIC_INT_NOTHING; - case A_int_test_1: - case A_int_test_2: - hostdata->idle = 1; - hostdata->test_completed = (dsps - A_int_test_1) / 0x00010000 + 1; - if (hostdata->options & OPTION_DEBUG_INTR) - printk("scsi%d : test%d complete\n", host->host_no, - hostdata->test_completed); - return SPECIFIC_INT_NOTHING; -#ifdef A_int_debug_reselected_ok - case A_int_debug_reselected_ok: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT)) { - /* - * Note - this dsa is not based on location relative to - * the command structure, but to location relative to the - * DSA register - */ - u32 *dsa; - dsa = (u32 *) bus_to_virt (NCR53c7x0_read32(DSA_REG)); - - printk("scsi%d : reselected_ok (DSA = 0x%x (virt 0x%p)\n", - host->host_no, NCR53c7x0_read32(DSA_REG), dsa); - printk("scsi%d : resume address is 0x%x (virt 0x%p)\n", - host->host_no, cmd->saved_data_pointer, - bus_to_virt(cmd->saved_data_pointer)); - print_insn (host, hostdata->script + Ent_reselected_ok / - sizeof(u32), "", 1); - if ((hostdata->chip / 100) == 8) - printk ("scsi%d : sxfer=0x%x, scntl3=0x%x\n", - host->host_no, NCR53c7x0_read8(SXFER_REG), - NCR53c7x0_read8(SCNTL3_REG_800)); - else - printk ("scsi%d : sxfer=0x%x, cannot read SBCL\n", - host->host_no, NCR53c7x0_read8(SXFER_REG)); - if (c) { - print_insn (host, (u32 *) - hostdata->sync[c->device->id].script, "", 1); - print_insn (host, (u32 *) - hostdata->sync[c->device->id].script + 2, "", 1); - } - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_reselect_check - case A_int_debug_reselect_check: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - u32 *dsa; -#if 0 - u32 *code; -#endif - /* - * Note - this dsa is not based on location relative to - * the command structure, but to location relative to the - * DSA register - */ - dsa = bus_to_virt (NCR53c7x0_read32(DSA_REG)); - printk("scsi%d : reselected_check_next (DSA = 0x%lx (virt 0x%p))\n", - host->host_no, virt_to_bus(dsa), dsa); - if (dsa) { - printk("scsi%d : resume address is 0x%x (virt 0x%p)\n", - host->host_no, cmd->saved_data_pointer, - bus_to_virt (cmd->saved_data_pointer)); -#if 0 - printk("scsi%d : template code :\n", host->host_no); - for (code = dsa + (Ent_dsa_code_check_reselect - Ent_dsa_zero) - / sizeof(u32); code < (dsa + Ent_dsa_zero / sizeof(u32)); - code += print_insn (host, code, "", 1)); -#endif - } - print_insn (host, hostdata->script + Ent_reselected_ok / - sizeof(u32), "", 1); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_dsa_schedule - case A_int_debug_dsa_schedule: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - u32 *dsa; - /* - * Note - this dsa is not based on location relative to - * the command structure, but to location relative to the - * DSA register - */ - dsa = (u32 *) bus_to_virt (NCR53c7x0_read32(DSA_REG)); - printk("scsi%d : dsa_schedule (old DSA = 0x%lx (virt 0x%p))\n", - host->host_no, virt_to_bus(dsa), dsa); - if (dsa) - printk("scsi%d : resume address is 0x%x (virt 0x%p)\n" - " (temp was 0x%x (virt 0x%p))\n", - host->host_no, cmd->saved_data_pointer, - bus_to_virt (cmd->saved_data_pointer), - NCR53c7x0_read32 (TEMP_REG), - bus_to_virt (NCR53c7x0_read32(TEMP_REG))); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_scheduled - case A_int_debug_scheduled: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - printk("scsi%d : new I/O 0x%x (virt 0x%p) scheduled\n", - host->host_no, NCR53c7x0_read32(DSA_REG), - bus_to_virt(NCR53c7x0_read32(DSA_REG))); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_idle - case A_int_debug_idle: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - printk("scsi%d : idle\n", host->host_no); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_cmd - case A_int_debug_cmd: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - printk("scsi%d : command sent\n"); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_dsa_loaded - case A_int_debug_dsa_loaded: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - printk("scsi%d : DSA loaded with 0x%x (virt 0x%p)\n", host->host_no, - NCR53c7x0_read32(DSA_REG), - bus_to_virt(NCR53c7x0_read32(DSA_REG))); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_reselected - case A_int_debug_reselected: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT)) { - if ((hostdata->chip / 100) == 8) - printk("scsi%d : reselected by target %d lun %d\n", - host->host_no, (int) NCR53c7x0_read8(SDID_REG_800) & ~0x80, - (int) hostdata->reselected_identify & 7); - else - printk("scsi%d : reselected by LCRC=0x%02x lun %d\n", - host->host_no, (int) NCR53c7x0_read8(LCRC_REG_10), - (int) hostdata->reselected_identify & 7); - print_queues(host); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_disconnect_msg - case A_int_debug_disconnect_msg: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR)) { - if (c) - printk("scsi%d : target %d lun %d disconnecting\n", - host->host_no, c->device->id, c->device->lun); - else - printk("scsi%d : unknown target disconnecting\n", - host->host_no); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_disconnected - case A_int_debug_disconnected: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT)) { - printk ("scsi%d : disconnected, new queues are\n", - host->host_no); - print_queues(host); -#if 0 - /* Not valid on ncr53c710! */ - printk ("scsi%d : sxfer=0x%x, scntl3=0x%x\n", - host->host_no, NCR53c7x0_read8(SXFER_REG), - NCR53c7x0_read8(SCNTL3_REG_800)); -#endif - if (c) { - print_insn (host, (u32 *) - hostdata->sync[c->device->id].script, "", 1); - print_insn (host, (u32 *) - hostdata->sync[c->device->id].script + 2, "", 1); - } - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_panic - case A_int_debug_panic: - printk("scsi%d : int_debug_panic received\n", host->host_no); - print_lots (host); - return SPECIFIC_INT_PANIC; -#endif -#ifdef A_int_debug_saved - case A_int_debug_saved: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT)) { - printk ("scsi%d : saved data pointer 0x%x (virt 0x%p)\n", - host->host_no, cmd->saved_data_pointer, - bus_to_virt (cmd->saved_data_pointer)); - print_progress (c); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_restored - case A_int_debug_restored: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT)) { - if (cmd) { - int size; - printk ("scsi%d : restored data pointer 0x%x (virt 0x%p)\n", - host->host_no, cmd->saved_data_pointer, bus_to_virt ( - cmd->saved_data_pointer)); - size = print_insn (host, (u32 *) - bus_to_virt(cmd->saved_data_pointer), "", 1); - size = print_insn (host, (u32 *) - bus_to_virt(cmd->saved_data_pointer) + size, "", 1); - print_progress (c); - } -#if 0 - printk ("scsi%d : datapath residual %d\n", - host->host_no, datapath_residual (host)) ; -#endif - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_sync - case A_int_debug_sync: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT|OPTION_DEBUG_SDTR)) { - unsigned char sxfer = NCR53c7x0_read8 (SXFER_REG), scntl3; - if ((hostdata->chip / 100) == 8) { - scntl3 = NCR53c7x0_read8 (SCNTL3_REG_800); - if (c) { - if (sxfer != hostdata->sync[c->device->id].sxfer_sanity || - scntl3 != hostdata->sync[c->device->id].scntl3_sanity) { - printk ("scsi%d : sync sanity check failed sxfer=0x%x, scntl3=0x%x", - host->host_no, sxfer, scntl3); - NCR53c7x0_write8 (SXFER_REG, sxfer); - NCR53c7x0_write8 (SCNTL3_REG_800, scntl3); - } - } else - printk ("scsi%d : unknown command sxfer=0x%x, scntl3=0x%x\n", - host->host_no, (int) sxfer, (int) scntl3); - } else { - if (c) { - if (sxfer != hostdata->sync[c->device->id].sxfer_sanity) { - printk ("scsi%d : sync sanity check failed sxfer=0x%x", - host->host_no, sxfer); - NCR53c7x0_write8 (SXFER_REG, sxfer); - NCR53c7x0_write8 (SBCL_REG, - hostdata->sync[c->device->id].sscf_710); - } - } else - printk ("scsi%d : unknown command sxfer=0x%x\n", - host->host_no, (int) sxfer); - } - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_datain - case A_int_debug_datain: - if (hostdata->options & (OPTION_DEBUG_SCRIPT|OPTION_DEBUG_INTR| - OPTION_DEBUG_DISCONNECT|OPTION_DEBUG_SDTR)) { - int size; - if ((hostdata->chip / 100) == 8) - printk ("scsi%d : In do_datain (%s) sxfer=0x%x, scntl3=0x%x\n" - " datapath residual=%d\n", - host->host_no, sbcl_to_phase (NCR53c7x0_read8 (SBCL_REG)), - (int) NCR53c7x0_read8(SXFER_REG), - (int) NCR53c7x0_read8(SCNTL3_REG_800), - datapath_residual (host)) ; - else - printk ("scsi%d : In do_datain (%s) sxfer=0x%x\n" - " datapath residual=%d\n", - host->host_no, sbcl_to_phase (NCR53c7x0_read8 (SBCL_REG)), - (int) NCR53c7x0_read8(SXFER_REG), - datapath_residual (host)) ; - print_insn (host, dsp, "", 1); - size = print_insn (host, (u32 *) bus_to_virt(dsp[1]), "", 1); - print_insn (host, (u32 *) bus_to_virt(dsp[1]) + size, "", 1); - } - return SPECIFIC_INT_RESTART; -#endif -#ifdef A_int_debug_check_dsa - case A_int_debug_check_dsa: - if (NCR53c7x0_read8 (SCNTL1_REG) & SCNTL1_CON) { - int sdid; - int tmp; - char *where; - if (hostdata->chip / 100 == 8) - sdid = NCR53c7x0_read8 (SDID_REG_800) & 15; - else { - tmp = NCR53c7x0_read8 (SDID_REG_700); - if (!tmp) - panic ("SDID_REG_700 = 0"); - tmp >>= 1; - sdid = 0; - while (tmp) { - tmp >>= 1; - sdid++; - } - } - where = dsp - NCR53c7x0_insn_size(NCR53c7x0_read8 - (DCMD_REG)) == hostdata->script + - Ent_select_check_dsa / sizeof(u32) ? - "selection" : "reselection"; - if (c && sdid != c->device->id) { - printk ("scsi%d : SDID target %d != DSA target %d at %s\n", - host->host_no, sdid, c->device->id, where); - print_lots(host); - dump_events (host, 20); - return SPECIFIC_INT_PANIC; - } - } - return SPECIFIC_INT_RESTART; -#endif - default: - if ((dsps & 0xff000000) == 0x03000000) { - printk ("scsi%d : misc debug interrupt 0x%x\n", - host->host_no, dsps); - return SPECIFIC_INT_RESTART; - } else if ((dsps & 0xff000000) == 0x05000000) { - if (hostdata->events) { - struct NCR53c7x0_event *event; - ++hostdata->event_index; - if (hostdata->event_index >= hostdata->event_size) - hostdata->event_index = 0; - event = (struct NCR53c7x0_event *) hostdata->events + - hostdata->event_index; - event->event = (enum ncr_event) dsps; - event->dsa = bus_to_virt(NCR53c7x0_read32(DSA_REG)); - if (NCR53c7x0_read8 (SCNTL1_REG) & SCNTL1_CON) { - if (hostdata->chip / 100 == 8) - event->target = NCR53c7x0_read8(SSID_REG_800); - else { - unsigned char tmp, sdid; - tmp = NCR53c7x0_read8 (SDID_REG_700); - if (!tmp) - panic ("SDID_REG_700 = 0"); - tmp >>= 1; - sdid = 0; - while (tmp) { - tmp >>= 1; - sdid++; - } - event->target = sdid; - } - } - else - event->target = 255; - - if (event->event == EVENT_RESELECT) - event->lun = hostdata->reselected_identify & 0xf; - else if (c) - event->lun = c->device->lun; - else - event->lun = 255; - do_gettimeofday(&(event->time)); - if (c) { - event->pid = c->pid; - memcpy ((void *) event->cmnd, (void *) c->cmnd, - sizeof (event->cmnd)); - } else { - event->pid = -1; - } - } - return SPECIFIC_INT_RESTART; - } - - printk ("scsi%d : unknown user interrupt 0x%x\n", - host->host_no, (unsigned) dsps); - return SPECIFIC_INT_PANIC; - } -} - -/* - * XXX - the stock NCR assembler won't output the scriptu.h file, - * which undefine's all #define'd CPP symbols from the script.h - * file, which will create problems if you use multiple scripts - * with the same symbol names. - * - * If you insist on using NCR's assembler, you could generate - * scriptu.h from script.h using something like - * - * grep #define script.h | \ - * sed 's/#define[ ][ ]*\([_a-zA-Z][_a-zA-Z0-9]*\).*$/#undefine \1/' \ - * > scriptu.h - */ - -#include "53c7xx_u.h" - -/* XXX - add alternate script handling code here */ - - -/* - * Function : static void NCR537xx_soft_reset (struct Scsi_Host *host) - * - * Purpose : perform a soft reset of the NCR53c7xx chip - * - * Inputs : host - pointer to this host adapter's structure - * - * Preconditions : NCR53c7x0_init must have been called for this - * host. - * - */ - -static void -NCR53c7x0_soft_reset (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - unsigned long flags; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - NCR53c7x0_local_setup(host); - - local_irq_save(flags); - - /* Disable scsi chip and s/w level 7 ints */ - -#ifdef CONFIG_MVME16x - if (MACH_IS_MVME16x) - { - volatile unsigned long v; - - v = *(volatile unsigned long *)0xfff4006c; - v &= ~0x8000; - *(volatile unsigned long *)0xfff4006c = v; - v = *(volatile unsigned long *)0xfff4202c; - v &= ~0x10; - *(volatile unsigned long *)0xfff4202c = v; - } -#endif - /* Anything specific for your hardware? */ - - /* - * Do a soft reset of the chip so that everything is - * reinitialized to the power-on state. - * - * Basically follow the procedure outlined in the NCR53c700 - * data manual under Chapter Six, How to Use, Steps Necessary to - * Start SCRIPTS, with the exception of actually starting the - * script and setting up the synchronous transfer gunk. - */ - - /* Should we reset the scsi bus here??????????????????? */ - - NCR53c7x0_write8(ISTAT_REG_700, ISTAT_10_SRST); - NCR53c7x0_write8(ISTAT_REG_700, 0); - - /* - * saved_dcntl is set up in NCR53c7x0_init() before it is overwritten - * here. We should have some better way of working out the CF bit - * setting.. - */ - - hostdata->saved_dcntl = DCNTL_10_EA|DCNTL_10_COM; - if (hostdata->scsi_clock > 50000000) - hostdata->saved_dcntl |= DCNTL_700_CF_3; - else - if (hostdata->scsi_clock > 37500000) - hostdata->saved_dcntl |= DCNTL_700_CF_2; -#if 0 - else - /* Any clocks less than 37.5MHz? */ -#endif - - if (hostdata->options & OPTION_DEBUG_TRACE) - NCR53c7x0_write8(DCNTL_REG, hostdata->saved_dcntl | DCNTL_SSM); - else - NCR53c7x0_write8(DCNTL_REG, hostdata->saved_dcntl); - /* Following disables snooping - snooping is not required, as non- - * cached pages are used for shared data, and appropriate use is - * made of cache_push/cache_clear. Indeed, for 68060 - * enabling snooping causes disk corruption of ext2fs free block - * bitmaps and the like. If you have a 68060 with snooping hardwared - * on, then you need to enable CONFIG_060_WRITETHROUGH. - */ - NCR53c7x0_write8(CTEST7_REG, CTEST7_10_TT1|CTEST7_STD); - /* Actually burst of eight, according to my 53c710 databook */ - NCR53c7x0_write8(hostdata->dmode, DMODE_10_BL_8 | DMODE_10_FC2); - NCR53c7x0_write8(SCID_REG, 1 << host->this_id); - NCR53c7x0_write8(SBCL_REG, 0); - NCR53c7x0_write8(SCNTL1_REG, SCNTL1_ESR_700); - NCR53c7x0_write8(SCNTL0_REG, ((hostdata->options & OPTION_PARITY) ? - SCNTL0_EPC : 0) | SCNTL0_EPG_700 | SCNTL0_ARB1 | SCNTL0_ARB2); - - /* - * Enable all interrupts, except parity which we only want when - * the user requests it. - */ - - NCR53c7x0_write8(DIEN_REG, DIEN_700_BF | - DIEN_ABRT | DIEN_SSI | DIEN_SIR | DIEN_700_OPC); - - NCR53c7x0_write8(SIEN_REG_700, ((hostdata->options & OPTION_PARITY) ? - SIEN_PAR : 0) | SIEN_700_STO | SIEN_RST | SIEN_UDC | - SIEN_SGE | SIEN_MA); - -#ifdef CONFIG_MVME16x - if (MACH_IS_MVME16x) - { - volatile unsigned long v; - - /* Enable scsi chip and s/w level 7 ints */ - v = *(volatile unsigned long *)0xfff40080; - v = (v & ~(0xf << 28)) | (4 << 28); - *(volatile unsigned long *)0xfff40080 = v; - v = *(volatile unsigned long *)0xfff4006c; - v |= 0x8000; - *(volatile unsigned long *)0xfff4006c = v; - v = *(volatile unsigned long *)0xfff4202c; - v = (v & ~0xff) | 0x10 | 4; - *(volatile unsigned long *)0xfff4202c = v; - } -#endif - /* Anything needed for your hardware? */ - local_irq_restore(flags); -} - - -/* - * Function static struct NCR53c7x0_cmd *allocate_cmd (Scsi_Cmnd *cmd) - * - * Purpose : Return the first free NCR53c7x0_cmd structure (which are - * reused in a LIFO manner to minimize cache thrashing). - * - * Side effects : If we haven't yet scheduled allocation of NCR53c7x0_cmd - * structures for this device, do so. Attempt to complete all scheduled - * allocations using get_zeroed_page(), putting NCR53c7x0_cmd structures on - * the free list. Teach programmers not to drink and hack. - * - * Inputs : cmd - SCSI command - * - * Returns : NCR53c7x0_cmd structure allocated on behalf of cmd; - * NULL on failure. - */ - -static void -my_free_page (void *addr, int dummy) -{ - /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING, which - * XXX may be invalid (CONFIG_060_WRITETHROUGH) - */ - kernel_set_cachemode((void *)addr, 4096, IOMAP_FULL_CACHING); - free_page ((u32)addr); -} - -static struct NCR53c7x0_cmd * -allocate_cmd (Scsi_Cmnd *cmd) { - struct Scsi_Host *host = cmd->device->host; - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - u32 real; /* Real address */ - int size; /* Size of *tmp */ - struct NCR53c7x0_cmd *tmp; - unsigned long flags; - - if (hostdata->options & OPTION_DEBUG_ALLOCATION) - printk ("scsi%d : num_cmds = %d, can_queue = %d\n" - " target = %d, lun = %d, %s\n", - host->host_no, hostdata->num_cmds, host->can_queue, - cmd->device->id, cmd->device->lun, (hostdata->cmd_allocated[cmd->device->id] & - (1 << cmd->device->lun)) ? "already allocated" : "not allocated"); - -/* - * If we have not yet reserved commands for this I_T_L nexus, and - * the device exists (as indicated by permanent Scsi_Cmnd structures - * being allocated under 1.3.x, or being outside of scan_scsis in - * 1.2.x), do so now. - */ - if (!(hostdata->cmd_allocated[cmd->device->id] & (1 << cmd->device->lun)) && - cmd->device && cmd->device->has_cmdblocks) { - if ((hostdata->extra_allocate + hostdata->num_cmds) < host->can_queue) - hostdata->extra_allocate += host->cmd_per_lun; - hostdata->cmd_allocated[cmd->device->id] |= (1 << cmd->device->lun); - } - - for (; hostdata->extra_allocate > 0 ; --hostdata->extra_allocate, - ++hostdata->num_cmds) { - /* historically, kmalloc has returned unaligned addresses; pad so we - have enough room to ROUNDUP */ - size = hostdata->max_cmd_size + sizeof (void *); -#ifdef FORCE_DSA_ALIGNMENT - /* - * 53c710 rev.0 doesn't have an add-with-carry instruction. - * Ensure we allocate enough memory to force alignment. - */ - size += 256; -#endif -/* FIXME: for ISA bus '7xx chips, we need to or GFP_DMA in here */ - - if (size > 4096) { - printk (KERN_ERR "53c7xx: allocate_cmd size > 4K\n"); - return NULL; - } - real = get_zeroed_page(GFP_ATOMIC); - if (real == 0) - return NULL; - cache_push(virt_to_phys((void *)real), 4096); - cache_clear(virt_to_phys((void *)real), 4096); - kernel_set_cachemode((void *)real, 4096, IOMAP_NOCACHE_SER); - tmp = ROUNDUP(real, void *); -#ifdef FORCE_DSA_ALIGNMENT - { - if (((u32)tmp & 0xff) > CmdPageStart) - tmp = (struct NCR53c7x0_cmd *)((u32)tmp + 255); - tmp = (struct NCR53c7x0_cmd *)(((u32)tmp & ~0xff) + CmdPageStart); -#if 0 - printk ("scsi: size = %d, real = 0x%08x, tmp set to 0x%08x\n", - size, real, (u32)tmp); -#endif - } -#endif - tmp->real = (void *)real; - tmp->size = size; - tmp->free = ((void (*)(void *, int)) my_free_page); - local_irq_save(flags); - tmp->next = hostdata->free; - hostdata->free = tmp; - local_irq_restore(flags); - } - local_irq_save(flags); - tmp = (struct NCR53c7x0_cmd *) hostdata->free; - if (tmp) { - hostdata->free = tmp->next; - } - local_irq_restore(flags); - if (!tmp) - printk ("scsi%d : can't allocate command for target %d lun %d\n", - host->host_no, cmd->device->id, cmd->device->lun); - return tmp; -} - -/* - * Function static struct NCR53c7x0_cmd *create_cmd (Scsi_Cmnd *cmd) - * - * - * Purpose : allocate a NCR53c7x0_cmd structure, initialize it based on the - * Scsi_Cmnd structure passed in cmd, including dsa and Linux field - * initialization, and dsa code relocation. - * - * Inputs : cmd - SCSI command - * - * Returns : NCR53c7x0_cmd structure corresponding to cmd, - * NULL on failure. - */ -static struct NCR53c7x0_cmd * -create_cmd (Scsi_Cmnd *cmd) { - NCR53c7x0_local_declare(); - struct Scsi_Host *host = cmd->device->host; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - struct NCR53c7x0_cmd *tmp; /* NCR53c7x0_cmd structure for this command */ - int datain, /* Number of instructions per phase */ - dataout; - int data_transfer_instructions, /* Count of dynamic instructions */ - i; /* Counter */ - u32 *cmd_datain, /* Address of datain/dataout code */ - *cmd_dataout; /* Incremented as we assemble */ -#ifdef notyet - unsigned char *msgptr; /* Current byte in select message */ - int msglen; /* Length of whole select message */ -#endif - unsigned long flags; - u32 exp_select_indirect; /* Used in sanity check */ - NCR53c7x0_local_setup(cmd->device->host); - - if (!(tmp = allocate_cmd (cmd))) - return NULL; - - /* - * Copy CDB and initialised result fields from Scsi_Cmnd to NCR53c7x0_cmd. - * We do this because NCR53c7x0_cmd may have a special cache mode - * selected to cope with lack of bus snooping, etc. - */ - - memcpy(tmp->cmnd, cmd->cmnd, 12); - tmp->result = cmd->result; - - /* - * Decide whether we need to generate commands for DATA IN, - * DATA OUT, neither, or both based on the SCSI command - */ - - switch (cmd->cmnd[0]) { - /* These commands do DATA IN */ - case INQUIRY: - case MODE_SENSE: - case READ_6: - case READ_10: - case READ_CAPACITY: - case REQUEST_SENSE: - case READ_BLOCK_LIMITS: - case READ_TOC: - datain = 2 * (cmd->use_sg ? cmd->use_sg : 1) + 3; - dataout = 0; - break; - /* These commands do DATA OUT */ - case MODE_SELECT: - case WRITE_6: - case WRITE_10: -#if 0 - printk("scsi%d : command is ", host->host_no); - __scsi_print_command(cmd->cmnd); -#endif -#if 0 - printk ("scsi%d : %d scatter/gather segments\n", host->host_no, - cmd->use_sg); -#endif - datain = 0; - dataout = 2 * (cmd->use_sg ? cmd->use_sg : 1) + 3; -#if 0 - hostdata->options |= OPTION_DEBUG_INTR; -#endif - break; - /* - * These commands do no data transfer, we should force an - * interrupt if a data phase is attempted on them. - */ - case TEST_UNIT_READY: - case ALLOW_MEDIUM_REMOVAL: - case START_STOP: - datain = dataout = 0; - break; - /* - * We don't know about these commands, so generate code to handle - * both DATA IN and DATA OUT phases. More efficient to identify them - * and add them to the above cases. - */ - default: - printk("scsi%d : datain+dataout for command ", host->host_no); - __scsi_print_command(cmd->cmnd); - datain = dataout = 2 * (cmd->use_sg ? cmd->use_sg : 1) + 3; - } - - /* - * New code : so that active pointers work correctly regardless - * of where the saved data pointer is at, we want to immediately - * enter the dynamic code after selection, and on a non-data - * phase perform a CALL to the non-data phase handler, with - * returns back to this address. - * - * If a phase mismatch is encountered in the middle of a - * Block MOVE instruction, we want to _leave_ that instruction - * unchanged as the current case is, modify a temporary buffer, - * and point the active pointer (TEMP) at that. - * - * Furthermore, we want to implement a saved data pointer, - * set by the SAVE_DATA_POINTERs message. - * - * So, the data transfer segments will change to - * CALL data_transfer, WHEN NOT data phase - * MOVE x, x, WHEN data phase - * ( repeat ) - * JUMP other_transfer - */ - - data_transfer_instructions = datain + dataout; - - /* - * When we perform a request sense, we overwrite various things, - * including the data transfer code. Make sure we have enough - * space to do that. - */ - - if (data_transfer_instructions < 2) - data_transfer_instructions = 2; - - - /* - * The saved data pointer is set up so that a RESTORE POINTERS message - * will start the data transfer over at the beginning. - */ - - tmp->saved_data_pointer = virt_to_bus (hostdata->script) + - hostdata->E_data_transfer; - - /* - * Initialize Linux specific fields. - */ - - tmp->cmd = cmd; - tmp->next = NULL; - tmp->flags = 0; - tmp->dsa_next_addr = virt_to_bus(tmp->dsa) + hostdata->dsa_next - - hostdata->dsa_start; - tmp->dsa_addr = virt_to_bus(tmp->dsa) - hostdata->dsa_start; - - /* - * Calculate addresses of dynamic code to fill in DSA - */ - - tmp->data_transfer_start = tmp->dsa + (hostdata->dsa_end - - hostdata->dsa_start) / sizeof(u32); - tmp->data_transfer_end = tmp->data_transfer_start + - 2 * data_transfer_instructions; - - cmd_datain = datain ? tmp->data_transfer_start : NULL; - cmd_dataout = dataout ? (datain ? cmd_datain + 2 * datain : tmp-> - data_transfer_start) : NULL; - - /* - * Fill in the NCR53c7x0_cmd structure as follows - * dsa, with fixed up DSA code - * datain code - * dataout code - */ - - /* Copy template code into dsa and perform all necessary fixups */ - if (hostdata->dsa_fixup) - hostdata->dsa_fixup(tmp); - - patch_dsa_32(tmp->dsa, dsa_next, 0, 0); - /* - * XXX is this giving 53c710 access to the Scsi_Cmnd in some way? - * Do we need to change it for caching reasons? - */ - patch_dsa_32(tmp->dsa, dsa_cmnd, 0, virt_to_bus(cmd)); - - if (hostdata->options & OPTION_DEBUG_SYNCHRONOUS) { - - exp_select_indirect = ((1 << cmd->device->id) << 16) | - (hostdata->sync[cmd->device->id].sxfer_sanity << 8); - - if (hostdata->sync[cmd->device->id].select_indirect != - exp_select_indirect) { - printk ("scsi%d : sanity check failed select_indirect=0x%x\n", - host->host_no, hostdata->sync[cmd->device->id].select_indirect); - FATAL(host); - - } - } - - patch_dsa_32(tmp->dsa, dsa_select, 0, - hostdata->sync[cmd->device->id].select_indirect); - - /* - * Right now, we'll do the WIDE and SYNCHRONOUS negotiations on - * different commands; although it should be trivial to do them - * both at the same time. - */ - if (hostdata->initiate_wdtr & (1 << cmd->device->id)) { - memcpy ((void *) (tmp->select + 1), (void *) wdtr_message, - sizeof(wdtr_message)); - patch_dsa_32(tmp->dsa, dsa_msgout, 0, 1 + sizeof(wdtr_message)); - local_irq_save(flags); - hostdata->initiate_wdtr &= ~(1 << cmd->device->id); - local_irq_restore(flags); - } else if (hostdata->initiate_sdtr & (1 << cmd->device->id)) { - memcpy ((void *) (tmp->select + 1), (void *) sdtr_message, - sizeof(sdtr_message)); - patch_dsa_32(tmp->dsa, dsa_msgout, 0, 1 + sizeof(sdtr_message)); - tmp->flags |= CMD_FLAG_SDTR; - local_irq_save(flags); - hostdata->initiate_sdtr &= ~(1 << cmd->device->id); - local_irq_restore(flags); - - } -#if 1 - else if (!(hostdata->talked_to & (1 << cmd->device->id)) && - !(hostdata->options & OPTION_NO_ASYNC)) { - - memcpy ((void *) (tmp->select + 1), (void *) async_message, - sizeof(async_message)); - patch_dsa_32(tmp->dsa, dsa_msgout, 0, 1 + sizeof(async_message)); - tmp->flags |= CMD_FLAG_SDTR; - } -#endif - else - patch_dsa_32(tmp->dsa, dsa_msgout, 0, 1); - - hostdata->talked_to |= (1 << cmd->device->id); - tmp->select[0] = (hostdata->options & OPTION_DISCONNECT) ? - IDENTIFY (1, cmd->device->lun) : IDENTIFY (0, cmd->device->lun); - patch_dsa_32(tmp->dsa, dsa_msgout, 1, virt_to_bus(tmp->select)); - patch_dsa_32(tmp->dsa, dsa_cmdout, 0, cmd->cmd_len); - patch_dsa_32(tmp->dsa, dsa_cmdout, 1, virt_to_bus(tmp->cmnd)); - patch_dsa_32(tmp->dsa, dsa_dataout, 0, cmd_dataout ? - virt_to_bus (cmd_dataout) - : virt_to_bus (hostdata->script) + hostdata->E_other_transfer); - patch_dsa_32(tmp->dsa, dsa_datain, 0, cmd_datain ? - virt_to_bus (cmd_datain) - : virt_to_bus (hostdata->script) + hostdata->E_other_transfer); - /* - * XXX - need to make endian aware, should use separate variables - * for both status and message bytes. - */ - patch_dsa_32(tmp->dsa, dsa_msgin, 0, 1); -/* - * FIXME : these only works for little endian. We probably want to - * provide message and status fields in the NCR53c7x0_cmd - * structure, and assign them to cmd->result when we're done. - */ -#ifdef BIG_ENDIAN - patch_dsa_32(tmp->dsa, dsa_msgin, 1, virt_to_bus(&tmp->result) + 2); - patch_dsa_32(tmp->dsa, dsa_status, 0, 1); - patch_dsa_32(tmp->dsa, dsa_status, 1, virt_to_bus(&tmp->result) + 3); -#else - patch_dsa_32(tmp->dsa, dsa_msgin, 1, virt_to_bus(&tmp->result) + 1); - patch_dsa_32(tmp->dsa, dsa_status, 0, 1); - patch_dsa_32(tmp->dsa, dsa_status, 1, virt_to_bus(&tmp->result)); -#endif - patch_dsa_32(tmp->dsa, dsa_msgout_other, 0, 1); - patch_dsa_32(tmp->dsa, dsa_msgout_other, 1, - virt_to_bus(&(hostdata->NCR53c7xx_msg_nop))); - - /* - * Generate code for zero or more of the DATA IN, DATA OUT phases - * in the format - * - * CALL data_transfer, WHEN NOT phase - * MOVE first buffer length, first buffer address, WHEN phase - * ... - * MOVE last buffer length, last buffer address, WHEN phase - * JUMP other_transfer - */ - -/* - * See if we're getting to data transfer by generating an unconditional - * interrupt. - */ -#if 0 - if (datain) { - cmd_datain[0] = 0x98080000; - cmd_datain[1] = 0x03ffd00d; - cmd_datain += 2; - } -#endif - -/* - * XXX - I'm undecided whether all of this nonsense is faster - * in the long run, or whether I should just go and implement a loop - * on the NCR chip using table indirect mode? - * - * In any case, this is how it _must_ be done for 53c700/700-66 chips, - * so this stays even when we come up with something better. - * - * When we're limited to 1 simultaneous command, no overlapping processing, - * we're seeing 630K/sec, with 7% CPU usage on a slow Syquest 45M - * drive. - * - * Not bad, not good. We'll see. - */ - - tmp->bounce.len = 0; /* Assume aligned buffer */ - - for (i = 0; cmd->use_sg ? (i < cmd->use_sg) : !i; cmd_datain += 4, - cmd_dataout += 4, ++i) { - u32 vbuf = cmd->use_sg - ? (u32)page_address(((struct scatterlist *)cmd->request_buffer)[i].page)+ - ((struct scatterlist *)cmd->request_buffer)[i].offset - : (u32)(cmd->request_buffer); - u32 bbuf = virt_to_bus((void *)vbuf); - u32 count = cmd->use_sg ? - ((struct scatterlist *)cmd->request_buffer)[i].length : - cmd->request_bufflen; - - /* - * If we have buffers which are not aligned with 16 byte cache - * lines, then we just hope nothing accesses the other parts of - * those cache lines while the transfer is in progress. That would - * fill the cache, and subsequent reads of the dma data would pick - * up the wrong thing. - * XXX We need a bounce buffer to handle that correctly. - */ - - if (((bbuf & 15) || (count & 15)) && (datain || dataout)) - { - /* Bounce buffer needed */ - if (cmd->use_sg) - printk ("53c7xx: Non-aligned buffer with use_sg\n"); - else if (datain && dataout) - printk ("53c7xx: Non-aligned buffer with datain && dataout\n"); - else if (count > 256) - printk ("53c7xx: Non-aligned transfer > 256 bytes\n"); - else - { - if (datain) - { - tmp->bounce.len = count; - tmp->bounce.addr = vbuf; - bbuf = virt_to_bus(tmp->bounce.buf); - tmp->bounce.buf[0] = 0xff; - tmp->bounce.buf[1] = 0xfe; - tmp->bounce.buf[2] = 0xfd; - tmp->bounce.buf[3] = 0xfc; - } - if (dataout) - { - memcpy ((void *)tmp->bounce.buf, (void *)vbuf, count); - bbuf = virt_to_bus(tmp->bounce.buf); - } - } - } - - if (datain) { - cache_clear(virt_to_phys((void *)vbuf), count); - /* CALL other_in, WHEN NOT DATA_IN */ - cmd_datain[0] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_CALL | - DCMD_TCI_IO) << 24) | - DBC_TCI_WAIT_FOR_VALID | DBC_TCI_COMPARE_PHASE; - cmd_datain[1] = virt_to_bus (hostdata->script) + - hostdata->E_other_in; - /* MOVE count, buf, WHEN DATA_IN */ - cmd_datain[2] = ((DCMD_TYPE_BMI | DCMD_BMI_OP_MOVE_I | DCMD_BMI_IO) - << 24) | count; - cmd_datain[3] = bbuf; -#if 0 - print_insn (host, cmd_datain, "dynamic ", 1); - print_insn (host, cmd_datain + 2, "dynamic ", 1); -#endif - } - if (dataout) { - cache_push(virt_to_phys((void *)vbuf), count); - /* CALL other_out, WHEN NOT DATA_OUT */ - cmd_dataout[0] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_CALL) << 24) | - DBC_TCI_WAIT_FOR_VALID | DBC_TCI_COMPARE_PHASE; - cmd_dataout[1] = virt_to_bus(hostdata->script) + - hostdata->E_other_out; - /* MOVE count, buf, WHEN DATA+OUT */ - cmd_dataout[2] = ((DCMD_TYPE_BMI | DCMD_BMI_OP_MOVE_I) << 24) - | count; - cmd_dataout[3] = bbuf; -#if 0 - print_insn (host, cmd_dataout, "dynamic ", 1); - print_insn (host, cmd_dataout + 2, "dynamic ", 1); -#endif - } - } - - /* - * Install JUMP instructions after the data transfer routines to return - * control to the do_other_transfer routines. - */ - - - if (datain) { - cmd_datain[0] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_JUMP) << 24) | - DBC_TCI_TRUE; - cmd_datain[1] = virt_to_bus(hostdata->script) + - hostdata->E_other_transfer; -#if 0 - print_insn (host, cmd_datain, "dynamic jump ", 1); -#endif - cmd_datain += 2; - } -#if 0 - if (datain) { - cmd_datain[0] = 0x98080000; - cmd_datain[1] = 0x03ffdeed; - cmd_datain += 2; - } -#endif - if (dataout) { - cmd_dataout[0] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_JUMP) << 24) | - DBC_TCI_TRUE; - cmd_dataout[1] = virt_to_bus(hostdata->script) + - hostdata->E_other_transfer; -#if 0 - print_insn (host, cmd_dataout, "dynamic jump ", 1); -#endif - cmd_dataout += 2; - } - - return tmp; -} - -/* - * Function : int NCR53c7xx_queue_command (Scsi_Cmnd *cmd, - * void (*done)(Scsi_Cmnd *)) - * - * Purpose : enqueues a SCSI command - * - * Inputs : cmd - SCSI command, done - function called on completion, with - * a pointer to the command descriptor. - * - * Returns : 0 - * - * Side effects : - * cmd is added to the per instance driver issue_queue, with major - * twiddling done to the host specific fields of cmd. If the - * process_issue_queue coroutine isn't running, it is restarted. - * - * NOTE : we use the host_scribble field of the Scsi_Cmnd structure to - * hold our own data, and pervert the ptr field of the SCp field - * to create a linked list. - */ - -int -NCR53c7xx_queue_command (Scsi_Cmnd *cmd, void (* done)(Scsi_Cmnd *)) { - struct Scsi_Host *host = cmd->device->host; - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - unsigned long flags; - Scsi_Cmnd *tmp; - - cmd->scsi_done = done; - cmd->host_scribble = NULL; - cmd->SCp.ptr = NULL; - cmd->SCp.buffer = NULL; - -#ifdef VALID_IDS - /* Ignore commands on invalid IDs */ - if (!hostdata->valid_ids[cmd->device->id]) { - printk("scsi%d : ignoring target %d lun %d\n", host->host_no, - cmd->device->id, cmd->device->lun); - cmd->result = (DID_BAD_TARGET << 16); - done(cmd); - return 0; - } -#endif - - local_irq_save(flags); - if ((hostdata->options & (OPTION_DEBUG_INIT_ONLY|OPTION_DEBUG_PROBE_ONLY)) - || ((hostdata->options & OPTION_DEBUG_TARGET_LIMIT) && - !(hostdata->debug_lun_limit[cmd->device->id] & (1 << cmd->device->lun))) -#ifdef LINUX_1_2 - || cmd->device->id > 7 -#else - || cmd->device->id >= host->max_id -#endif - || cmd->device->id == host->this_id - || hostdata->state == STATE_DISABLED) { - printk("scsi%d : disabled or bad target %d lun %d\n", host->host_no, - cmd->device->id, cmd->device->lun); - cmd->result = (DID_BAD_TARGET << 16); - done(cmd); - local_irq_restore(flags); - return 0; - } - - if ((hostdata->options & OPTION_DEBUG_NCOMMANDS_LIMIT) && - (hostdata->debug_count_limit == 0)) { - printk("scsi%d : maximum commands exceeded\n", host->host_no); - cmd->result = (DID_BAD_TARGET << 16); - done(cmd); - local_irq_restore(flags); - return 0; - } - - if (hostdata->options & OPTION_DEBUG_READ_ONLY) { - switch (cmd->cmnd[0]) { - case WRITE_6: - case WRITE_10: - printk("scsi%d : WRITE attempted with NO_WRITE debugging flag set\n", - host->host_no); - cmd->result = (DID_BAD_TARGET << 16); - done(cmd); - local_irq_restore(flags); - return 0; - } - } - - if ((hostdata->options & OPTION_DEBUG_TARGET_LIMIT) && - hostdata->debug_count_limit != -1) - --hostdata->debug_count_limit; - - cmd->result = 0xffff; /* The NCR will overwrite message - and status with valid data */ - cmd->host_scribble = (unsigned char *) tmp = create_cmd (cmd); - - /* - * REQUEST SENSE commands are inserted at the head of the queue - * so that we do not clear the contingent allegiance condition - * they may be looking at. - */ - - if (!(hostdata->issue_queue) || (cmd->cmnd[0] == REQUEST_SENSE)) { - cmd->SCp.ptr = (unsigned char *) hostdata->issue_queue; - hostdata->issue_queue = cmd; - } else { - for (tmp = (Scsi_Cmnd *) hostdata->issue_queue; tmp->SCp.ptr; - tmp = (Scsi_Cmnd *) tmp->SCp.ptr); - tmp->SCp.ptr = (unsigned char *) cmd; - } - local_irq_restore(flags); - run_process_issue_queue(); - return 0; -} - -/* - * Function : void to_schedule_list (struct Scsi_Host *host, - * struct NCR53c7x0_hostdata * hostdata, Scsi_Cmnd *cmd) - * - * Purpose : takes a SCSI command which was just removed from the - * issue queue, and deals with it by inserting it in the first - * free slot in the schedule list or by terminating it immediately. - * - * Inputs : - * host - SCSI host adapter; hostdata - hostdata structure for - * this adapter; cmd - a pointer to the command; should have - * the host_scribble field initialized to point to a valid - * - * Side effects : - * cmd is added to the per instance schedule list, with minor - * twiddling done to the host specific fields of cmd. - * - */ - -static __inline__ void -to_schedule_list (struct Scsi_Host *host, struct NCR53c7x0_hostdata *hostdata, - struct NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - Scsi_Cmnd *tmp = cmd->cmd; - unsigned long flags; - /* dsa start is negative, so subtraction is used */ - volatile u32 *ncrcurrent; - - int i; - NCR53c7x0_local_setup(host); -#if 0 - printk("scsi%d : new dsa is 0x%lx (virt 0x%p)\n", host->host_no, - virt_to_bus(hostdata->dsa), hostdata->dsa); -#endif - - local_irq_save(flags); - - /* - * Work around race condition : if an interrupt fired and we - * got disabled forget about this command. - */ - - if (hostdata->state == STATE_DISABLED) { - printk("scsi%d : driver disabled\n", host->host_no); - tmp->result = (DID_BAD_TARGET << 16); - cmd->next = (struct NCR53c7x0_cmd *) hostdata->free; - hostdata->free = cmd; - tmp->scsi_done(tmp); - local_irq_restore(flags); - return; - } - - for (i = host->can_queue, ncrcurrent = hostdata->schedule; - i > 0 && ncrcurrent[0] != hostdata->NOP_insn; - --i, ncrcurrent += 2 /* JUMP instructions are two words */); - - if (i > 0) { - ++hostdata->busy[tmp->device->id][tmp->device->lun]; - cmd->next = hostdata->running_list; - hostdata->running_list = cmd; - - /* Restore this instruction to a NOP once the command starts */ - cmd->dsa [(hostdata->dsa_jump_dest - hostdata->dsa_start) / - sizeof(u32)] = (u32) virt_to_bus ((void *)ncrcurrent); - /* Replace the current jump operand. */ - ncrcurrent[1] = - virt_to_bus ((void *) cmd->dsa) + hostdata->E_dsa_code_begin - - hostdata->E_dsa_code_template; - /* Replace the NOP instruction with a JUMP */ - ncrcurrent[0] = ((DCMD_TYPE_TCI|DCMD_TCI_OP_JUMP) << 24) | - DBC_TCI_TRUE; - } else { - printk ("scsi%d: no free slot\n", host->host_no); - disable(host); - tmp->result = (DID_ERROR << 16); - cmd->next = (struct NCR53c7x0_cmd *) hostdata->free; - hostdata->free = cmd; - tmp->scsi_done(tmp); - local_irq_restore(flags); - return; - } - - /* - * If the NCR chip is in an idle state, start it running the scheduler - * immediately. Otherwise, signal the chip to jump to schedule as - * soon as it is idle. - */ - - if (hostdata->idle) { - hostdata->idle = 0; - hostdata->state = STATE_RUNNING; - NCR53c7x0_write32 (DSP_REG, virt_to_bus ((void *)hostdata->schedule)); - if (hostdata->options & OPTION_DEBUG_TRACE) - NCR53c7x0_write8 (DCNTL_REG, hostdata->saved_dcntl | - DCNTL_SSM | DCNTL_STD); - } else { - NCR53c7x0_write8(hostdata->istat, ISTAT_10_SIGP); - } - - local_irq_restore(flags); -} - -/* - * Function : busyp (struct Scsi_Host *host, struct NCR53c7x0_hostdata - * *hostdata, Scsi_Cmnd *cmd) - * - * Purpose : decide if we can pass the given SCSI command on to the - * device in question or not. - * - * Returns : non-zero when we're busy, 0 when we aren't. - */ - -static __inline__ int -busyp (struct Scsi_Host *host, struct NCR53c7x0_hostdata *hostdata, - Scsi_Cmnd *cmd) { - /* FIXME : in the future, this needs to accommodate SCSI-II tagged - queuing, and we may be able to play with fairness here a bit. - */ - return hostdata->busy[cmd->device->id][cmd->device->lun]; -} - -/* - * Function : process_issue_queue (void) - * - * Purpose : transfer commands from the issue queue to NCR start queue - * of each NCR53c7/8xx in the system, avoiding kernel stack - * overflows when the scsi_done() function is invoked recursively. - * - * NOTE : process_issue_queue exits with interrupts *disabled*, so the - * caller must reenable them if it desires. - * - * NOTE : process_issue_queue should be called from both - * NCR53c7x0_queue_command() and from the interrupt handler - * after command completion in case NCR53c7x0_queue_command() - * isn't invoked again but we've freed up resources that are - * needed. - */ - -static void -process_issue_queue (unsigned long flags) { - Scsi_Cmnd *tmp, *prev; - struct Scsi_Host *host; - struct NCR53c7x0_hostdata *hostdata; - int done; - - /* - * We run (with interrupts disabled) until we're sure that none of - * the host adapters have anything that can be done, at which point - * we set process_issue_queue_running to 0 and exit. - * - * Interrupts are enabled before doing various other internal - * instructions, after we've decided that we need to run through - * the loop again. - * - */ - - do { - local_irq_disable(); /* Freeze request queues */ - done = 1; - for (host = first_host; host && host->hostt == the_template; - host = host->next) { - hostdata = (struct NCR53c7x0_hostdata *) host->hostdata[0]; - local_irq_disable(); - if (hostdata->issue_queue) { - if (hostdata->state == STATE_DISABLED) { - tmp = (Scsi_Cmnd *) hostdata->issue_queue; - hostdata->issue_queue = (Scsi_Cmnd *) tmp->SCp.ptr; - tmp->result = (DID_BAD_TARGET << 16); - if (tmp->host_scribble) { - ((struct NCR53c7x0_cmd *)tmp->host_scribble)->next = - hostdata->free; - hostdata->free = - (struct NCR53c7x0_cmd *)tmp->host_scribble; - tmp->host_scribble = NULL; - } - tmp->scsi_done (tmp); - done = 0; - } else - for (tmp = (Scsi_Cmnd *) hostdata->issue_queue, - prev = NULL; tmp; prev = tmp, tmp = (Scsi_Cmnd *) - tmp->SCp.ptr) - if (!tmp->host_scribble || - !busyp (host, hostdata, tmp)) { - if (prev) - prev->SCp.ptr = tmp->SCp.ptr; - else - hostdata->issue_queue = (Scsi_Cmnd *) - tmp->SCp.ptr; - tmp->SCp.ptr = NULL; - if (tmp->host_scribble) { - if (hostdata->options & OPTION_DEBUG_QUEUES) - printk ("scsi%d : moving command for target %d lun %d to start list\n", - host->host_no, tmp->device->id, tmp->device->lun); - - - to_schedule_list (host, hostdata, - (struct NCR53c7x0_cmd *) - tmp->host_scribble); - } else { - if (((tmp->result & 0xff) == 0xff) || - ((tmp->result & 0xff00) == 0xff00)) { - printk ("scsi%d : danger Will Robinson!\n", - host->host_no); - tmp->result = DID_ERROR << 16; - disable (host); - } - tmp->scsi_done(tmp); - } - done = 0; - } /* if target/lun is not busy */ - } /* if hostdata->issue_queue */ - if (!done) - local_irq_restore(flags); - } /* for host */ - } while (!done); - process_issue_queue_running = 0; -} - -/* - * Function : static void intr_scsi (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : handle all SCSI interrupts, indicated by the setting - * of the SIP bit in the ISTAT register. - * - * Inputs : host, cmd - host and NCR command causing the interrupt, cmd - * may be NULL. - */ - -static void -intr_scsi (struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - unsigned char sstat0_sist0, sist1, /* Registers */ - fatal; /* Did a fatal interrupt - occur ? */ - - NCR53c7x0_local_setup(host); - - fatal = 0; - - sstat0_sist0 = NCR53c7x0_read8(SSTAT0_REG); - sist1 = 0; - - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : SIST0 0x%0x, SIST1 0x%0x\n", host->host_no, - sstat0_sist0, sist1); - - /* 250ms selection timeout */ - if (sstat0_sist0 & SSTAT0_700_STO) { - fatal = 1; - if (hostdata->options & OPTION_DEBUG_INTR) { - printk ("scsi%d : Selection Timeout\n", host->host_no); - if (cmd) { - printk("scsi%d : target %d, lun %d, command ", - host->host_no, cmd->cmd->device->id, cmd->cmd->device->lun); - __scsi_print_command (cmd->cmd->cmnd); - printk("scsi%d : dsp = 0x%x (virt 0x%p)\n", host->host_no, - NCR53c7x0_read32(DSP_REG), - bus_to_virt(NCR53c7x0_read32(DSP_REG))); - } else { - printk("scsi%d : no command\n", host->host_no); - } - } -/* - * XXX - question : how do we want to handle the Illegal Instruction - * interrupt, which may occur before or after the Selection Timeout - * interrupt? - */ - - if (1) { - hostdata->idle = 1; - hostdata->expecting_sto = 0; - - if (hostdata->test_running) { - hostdata->test_running = 0; - hostdata->test_completed = 3; - } else if (cmd) { - abnormal_finished(cmd, DID_BAD_TARGET << 16); - } -#if 0 - hostdata->intrs = 0; -#endif - } - } - -/* - * FIXME : in theory, we can also get a UDC when a STO occurs. - */ - if (sstat0_sist0 & SSTAT0_UDC) { - fatal = 1; - if (cmd) { - printk("scsi%d : target %d lun %d unexpected disconnect\n", - host->host_no, cmd->cmd->device->id, cmd->cmd->device->lun); - print_lots (host); - abnormal_finished(cmd, DID_ERROR << 16); - } else - printk("scsi%d : unexpected disconnect (no command)\n", - host->host_no); - - hostdata->dsp = (u32 *) hostdata->schedule; - hostdata->dsp_changed = 1; - } - - /* SCSI PARITY error */ - if (sstat0_sist0 & SSTAT0_PAR) { - fatal = 1; - if (cmd && cmd->cmd) { - printk("scsi%d : target %d lun %d parity error.\n", - host->host_no, cmd->cmd->device->id, cmd->cmd->device->lun); - abnormal_finished (cmd, DID_PARITY << 16); - } else - printk("scsi%d : parity error\n", host->host_no); - /* Should send message out, parity error */ - - /* XXX - Reduce synchronous transfer rate! */ - hostdata->dsp = hostdata->script + hostdata->E_initiator_abort / - sizeof(u32); - hostdata->dsp_changed = 1; - /* SCSI GROSS error */ - } - - if (sstat0_sist0 & SSTAT0_SGE) { - fatal = 1; - printk("scsi%d : gross error, saved2_dsa = 0x%x\n", host->host_no, - (unsigned int)hostdata->saved2_dsa); - print_lots (host); - - /* - * A SCSI gross error may occur when we have - * - * - A synchronous offset which causes the SCSI FIFO to be overwritten. - * - * - A REQ which causes the maximum synchronous offset programmed in - * the SXFER register to be exceeded. - * - * - A phase change with an outstanding synchronous offset. - * - * - Residual data in the synchronous data FIFO, with a transfer - * other than a synchronous receive is started.$# - */ - - - /* XXX Should deduce synchronous transfer rate! */ - hostdata->dsp = hostdata->script + hostdata->E_initiator_abort / - sizeof(u32); - hostdata->dsp_changed = 1; - /* Phase mismatch */ - } - - if (sstat0_sist0 & SSTAT0_MA) { - fatal = 1; - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : SSTAT0_MA\n", host->host_no); - intr_phase_mismatch (host, cmd); - } - -#if 0 - if (sstat0_sist0 & SIST0_800_RSL) - printk ("scsi%d : Oh no Mr. Bill!\n", host->host_no); -#endif - -/* - * If a fatal SCSI interrupt occurs, we must insure that the DMA and - * SCSI FIFOs were flushed. - */ - - if (fatal) { - if (!hostdata->dstat_valid) { - hostdata->dstat = NCR53c7x0_read8(DSTAT_REG); - hostdata->dstat_valid = 1; - } - - if (!(hostdata->dstat & DSTAT_DFE)) { - printk ("scsi%d : DMA FIFO not empty\n", host->host_no); - /* - * Really need to check this code for 710 RGH. - * Havn't seen any problems, but maybe we should FLUSH before - * clearing sometimes. - */ - NCR53c7x0_write8 (CTEST8_REG, CTEST8_10_CLF); - while (NCR53c7x0_read8 (CTEST8_REG) & CTEST8_10_CLF) - ; - hostdata->dstat |= DSTAT_DFE; - } - } -} - -#ifdef CYCLIC_TRACE - -/* - * The following implements a cyclic log of instructions executed, if you turn - * TRACE on. It will also print the log for you. Very useful when debugging - * 53c710 support, possibly not really needed any more. - */ - -u32 insn_log[4096]; -u32 insn_log_index = 0; - -void log1 (u32 i) -{ - insn_log[insn_log_index++] = i; - if (insn_log_index == 4096) - insn_log_index = 0; -} - -void log_insn (u32 *ip) -{ - log1 ((u32)ip); - log1 (*ip); - log1 (*(ip+1)); - if (((*ip >> 24) & DCMD_TYPE_MASK) == DCMD_TYPE_MMI) - log1 (*(ip+2)); -} - -void dump_log(void) -{ - int cnt = 0; - int i = insn_log_index; - int size; - struct Scsi_Host *host = first_host; - - while (cnt < 4096) { - printk ("%08x (+%6x): ", insn_log[i], (insn_log[i] - (u32)&(((struct NCR53c7x0_hostdata *)host->hostdata[0])->script))/4); - if (++i == 4096) - i = 0; - cnt++; - if (((insn_log[i] >> 24) & DCMD_TYPE_MASK) == DCMD_TYPE_MMI) - size = 3; - else - size = 2; - while (size--) { - printk ("%08x ", insn_log[i]); - if (++i == 4096) - i = 0; - cnt++; - } - printk ("\n"); - } -} -#endif - - -/* - * Function : static void NCR53c7x0_intfly (struct Scsi_Host *host) - * - * Purpose : Scan command queue for specified host, looking for completed - * commands. - * - * Inputs : Scsi_Host pointer. - * - * This is called from the interrupt handler, when a simulated INTFLY - * interrupt occurs. - */ - -static void -NCR53c7x0_intfly (struct Scsi_Host *host) -{ - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata; /* host->hostdata[0] */ - struct NCR53c7x0_cmd *cmd, /* command which halted */ - **cmd_prev_ptr; - unsigned long flags; - char search_found = 0; /* Got at least one ? */ - - hostdata = (struct NCR53c7x0_hostdata *) host->hostdata[0]; - NCR53c7x0_local_setup(host); - - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : INTFLY\n", host->host_no); - - /* - * Traverse our list of running commands, and look - * for those with valid (non-0xff ff) status and message - * bytes encoded in the result which signify command - * completion. - */ - - local_irq_save(flags); -restart: - for (cmd_prev_ptr = (struct NCR53c7x0_cmd **)&(hostdata->running_list), - cmd = (struct NCR53c7x0_cmd *) hostdata->running_list; cmd ; - cmd_prev_ptr = (struct NCR53c7x0_cmd **) &(cmd->next), - cmd = (struct NCR53c7x0_cmd *) cmd->next) - { - Scsi_Cmnd *tmp; - - if (!cmd) { - printk("scsi%d : very weird.\n", host->host_no); - break; - } - - if (!(tmp = cmd->cmd)) { - printk("scsi%d : weird. NCR53c7x0_cmd has no Scsi_Cmnd\n", - host->host_no); - continue; - } - /* Copy the result over now; may not be complete, - * but subsequent tests may as well be done on - * cached memory. - */ - tmp->result = cmd->result; - - if (((tmp->result & 0xff) == 0xff) || - ((tmp->result & 0xff00) == 0xff00)) - continue; - - search_found = 1; - - if (cmd->bounce.len) - memcpy ((void *)cmd->bounce.addr, - (void *)cmd->bounce.buf, cmd->bounce.len); - - /* Important - remove from list _before_ done is called */ - if (cmd_prev_ptr) - *cmd_prev_ptr = (struct NCR53c7x0_cmd *) cmd->next; - - --hostdata->busy[tmp->device->id][tmp->device->lun]; - cmd->next = hostdata->free; - hostdata->free = cmd; - - tmp->host_scribble = NULL; - - if (hostdata->options & OPTION_DEBUG_INTR) { - printk ("scsi%d : command complete : pid %lu, id %d,lun %d result 0x%x ", - host->host_no, tmp->pid, tmp->device->id, tmp->device->lun, tmp->result); - __scsi_print_command (tmp->cmnd); - } - - tmp->scsi_done(tmp); - goto restart; - } - local_irq_restore(flags); - - if (!search_found) { - printk ("scsi%d : WARNING : INTFLY with no completed commands.\n", - host->host_no); - } else { - run_process_issue_queue(); - } - return; -} - -/* - * Function : static irqreturn_t NCR53c7x0_intr (int irq, void *dev_id) - * - * Purpose : handle NCR53c7x0 interrupts for all NCR devices sharing - * the same IRQ line. - * - * Inputs : Since we're using the IRQF_DISABLED interrupt handler - * semantics, irq indicates the interrupt which invoked - * this handler. - * - * On the 710 we simualte an INTFLY with a script interrupt, and the - * script interrupt handler will call back to this function. - */ - -static irqreturn_t -NCR53c7x0_intr (int irq, void *dev_id) -{ - NCR53c7x0_local_declare(); - struct Scsi_Host *host; /* Host we are looking at */ - unsigned char istat; /* Values of interrupt regs */ - struct NCR53c7x0_hostdata *hostdata; /* host->hostdata[0] */ - struct NCR53c7x0_cmd *cmd; /* command which halted */ - u32 *dsa; /* DSA */ - int handled = 0; - -#ifdef NCR_DEBUG - char buf[80]; /* Debugging sprintf buffer */ - size_t buflen; /* Length of same */ -#endif - - host = (struct Scsi_Host *)dev_id; - hostdata = (struct NCR53c7x0_hostdata *) host->hostdata[0]; - NCR53c7x0_local_setup(host); - - /* - * Only read istat once per loop, since reading it again will unstack - * interrupts - */ - - while ((istat = NCR53c7x0_read8(hostdata->istat)) & (ISTAT_SIP|ISTAT_DIP)) { - handled = 1; - hostdata->dsp_changed = 0; - hostdata->dstat_valid = 0; - hostdata->state = STATE_HALTED; - - if (NCR53c7x0_read8 (SSTAT2_REG) & SSTAT2_FF_MASK) - printk ("scsi%d : SCSI FIFO not empty\n", host->host_no); - - /* - * NCR53c700 and NCR53c700-66 change the current SCSI - * process, hostdata->ncrcurrent, in the Linux driver so - * cmd = hostdata->ncrcurrent. - * - * With other chips, we must look through the commands - * executing and find the command structure which - * corresponds to the DSA register. - */ - - if (hostdata->options & OPTION_700) { - cmd = (struct NCR53c7x0_cmd *) hostdata->ncrcurrent; - } else { - dsa = bus_to_virt(NCR53c7x0_read32(DSA_REG)); - for (cmd = (struct NCR53c7x0_cmd *) hostdata->running_list; - cmd && (dsa + (hostdata->dsa_start / sizeof(u32))) != cmd->dsa; - cmd = (struct NCR53c7x0_cmd *)(cmd->next)) - ; - } - if (hostdata->options & OPTION_DEBUG_INTR) { - if (cmd) { - printk("scsi%d : interrupt for pid %lu, id %d, lun %d ", - host->host_no, cmd->cmd->pid, (int) cmd->cmd->device->id, - (int) cmd->cmd->device->lun); - __scsi_print_command (cmd->cmd->cmnd); - } else { - printk("scsi%d : no active command\n", host->host_no); - } - } - - if (istat & ISTAT_SIP) { - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : ISTAT_SIP\n", host->host_no); - intr_scsi (host, cmd); - } - - if (istat & ISTAT_DIP) { - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : ISTAT_DIP\n", host->host_no); - intr_dma (host, cmd); - } - - if (!hostdata->dstat_valid) { - hostdata->dstat = NCR53c7x0_read8(DSTAT_REG); - hostdata->dstat_valid = 1; - } - - if (!(hostdata->dstat & DSTAT_DFE)) { - printk ("scsi%d : DMA FIFO not empty\n", host->host_no); - /* Really need to check this out for 710 RGH */ - NCR53c7x0_write8 (CTEST8_REG, CTEST8_10_CLF); - while (NCR53c7x0_read8 (CTEST8_REG) & CTEST8_10_CLF) - ; - hostdata->dstat |= DSTAT_DFE; - } - - if (!hostdata->idle && hostdata->state == STATE_HALTED) { - if (!hostdata->dsp_changed) - hostdata->dsp = (u32 *)bus_to_virt(NCR53c7x0_read32(DSP_REG)); -#if 0 - printk("scsi%d : new dsp is 0x%lx (virt 0x%p)\n", - host->host_no, virt_to_bus(hostdata->dsp), hostdata->dsp); -#endif - - hostdata->state = STATE_RUNNING; - NCR53c7x0_write32 (DSP_REG, virt_to_bus(hostdata->dsp)); - if (hostdata->options & OPTION_DEBUG_TRACE) { -#ifdef CYCLIC_TRACE - log_insn (hostdata->dsp); -#else - print_insn (host, hostdata->dsp, "t ", 1); -#endif - NCR53c7x0_write8 (DCNTL_REG, - hostdata->saved_dcntl | DCNTL_SSM | DCNTL_STD); - } - } - } - return IRQ_HANDLED; -} - - -/* - * Function : static int abort_connected (struct Scsi_Host *host) - * - * Purpose : Assuming that the NCR SCSI processor is currently - * halted, break the currently established nexus. Clean - * up of the NCR53c7x0_cmd and Scsi_Cmnd structures should - * be done on receipt of the abort interrupt. - * - * Inputs : host - SCSI host - * - */ - -static int -abort_connected (struct Scsi_Host *host) { -#ifdef NEW_ABORT - NCR53c7x0_local_declare(); -#endif - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; -/* FIXME : this probably should change for production kernels; at the - least, counter should move to a per-host structure. */ - static int counter = 5; -#ifdef NEW_ABORT - int sstat, phase, offset; - u32 *script; - NCR53c7x0_local_setup(host); -#endif - - if (--counter <= 0) { - disable(host); - return 0; - } - - printk ("scsi%d : DANGER : abort_connected() called \n", - host->host_no); - -#ifdef NEW_ABORT - -/* - * New strategy : Rather than using a generic abort routine, - * we'll specifically try to source or sink the appropriate - * amount of data for the phase we're currently in (taking into - * account the current synchronous offset) - */ - - sstat = NCR53c8x0_read8 (SSTAT2_REG); - offset = OFFSET (sstat & SSTAT2_FF_MASK) >> SSTAT2_FF_SHIFT; - phase = sstat & SSTAT2_PHASE_MASK; - -/* - * SET ATN - * MOVE source_or_sink, WHEN CURRENT PHASE - * < repeat for each outstanding byte > - * JUMP send_abort_message - */ - - script = hostdata->abort_script = kmalloc ( - 8 /* instruction size */ * ( - 1 /* set ATN */ + - (!offset ? 1 : offset) /* One transfer per outstanding byte */ + - 1 /* send abort message */), - GFP_ATOMIC); - - -#else /* def NEW_ABORT */ - hostdata->dsp = hostdata->script + hostdata->E_initiator_abort / - sizeof(u32); -#endif /* def NEW_ABORT */ - hostdata->dsp_changed = 1; - -/* XXX - need to flag the command as aborted after the abort_connected - code runs - */ - return 0; -} - -/* - * Function : static int datapath_residual (Scsi_Host *host) - * - * Purpose : return residual data count of what's in the chip. - * - * Inputs : host - SCSI host - */ - -static int -datapath_residual (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - int count, synchronous, sstat; - unsigned int ddir; - - NCR53c7x0_local_setup(host); - /* COMPAT : the 700 and 700-66 need to use DFIFO_00_BO_MASK */ - count = ((NCR53c7x0_read8 (DFIFO_REG) & DFIFO_10_BO_MASK) - - (NCR53c7x0_read32 (DBC_REG) & DFIFO_10_BO_MASK)) & DFIFO_10_BO_MASK; - synchronous = NCR53c7x0_read8 (SXFER_REG) & SXFER_MO_MASK; - /* COMPAT : DDIR is elsewhere on non-'8xx chips. */ - ddir = NCR53c7x0_read8 (CTEST0_REG_700) & CTEST0_700_DDIR; - - if (ddir) { - /* Receive */ - if (synchronous) - count += (NCR53c7x0_read8 (SSTAT2_REG) & SSTAT2_FF_MASK) >> SSTAT2_FF_SHIFT; - else - if (NCR53c7x0_read8 (SSTAT1_REG) & SSTAT1_ILF) - ++count; - } else { - /* Send */ - sstat = NCR53c7x0_read8 (SSTAT1_REG); - if (sstat & SSTAT1_OLF) - ++count; - if (synchronous && (sstat & SSTAT1_ORF)) - ++count; - } - return count; -} - -/* - * Function : static const char * sbcl_to_phase (int sbcl)_ - * - * Purpose : Convert SBCL register to user-parsable phase representation - * - * Inputs : sbcl - value of sbcl register - */ - - -static const char * -sbcl_to_phase (int sbcl) { - switch (sbcl & SBCL_PHASE_MASK) { - case SBCL_PHASE_DATAIN: - return "DATAIN"; - case SBCL_PHASE_DATAOUT: - return "DATAOUT"; - case SBCL_PHASE_MSGIN: - return "MSGIN"; - case SBCL_PHASE_MSGOUT: - return "MSGOUT"; - case SBCL_PHASE_CMDOUT: - return "CMDOUT"; - case SBCL_PHASE_STATIN: - return "STATUSIN"; - default: - return "unknown"; - } -} - -/* - * Function : static const char * sstat2_to_phase (int sstat)_ - * - * Purpose : Convert SSTAT2 register to user-parsable phase representation - * - * Inputs : sstat - value of sstat register - */ - - -static const char * -sstat2_to_phase (int sstat) { - switch (sstat & SSTAT2_PHASE_MASK) { - case SSTAT2_PHASE_DATAIN: - return "DATAIN"; - case SSTAT2_PHASE_DATAOUT: - return "DATAOUT"; - case SSTAT2_PHASE_MSGIN: - return "MSGIN"; - case SSTAT2_PHASE_MSGOUT: - return "MSGOUT"; - case SSTAT2_PHASE_CMDOUT: - return "CMDOUT"; - case SSTAT2_PHASE_STATIN: - return "STATUSIN"; - default: - return "unknown"; - } -} - -/* - * Function : static void intr_phase_mismatch (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : Handle phase mismatch interrupts - * - * Inputs : host, cmd - host and NCR command causing the interrupt, cmd - * may be NULL. - * - * Side effects : The abort_connected() routine is called or the NCR chip - * is restarted, jumping to the command_complete entry point, or - * patching the address and transfer count of the current instruction - * and calling the msg_in entry point as appropriate. - */ - -static void -intr_phase_mismatch (struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - u32 dbc_dcmd, *dsp, *dsp_next; - unsigned char dcmd, sbcl; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int residual; - enum {ACTION_ABORT, ACTION_ABORT_PRINT, ACTION_CONTINUE} action = - ACTION_ABORT_PRINT; - const char *where = NULL; - - NCR53c7x0_local_setup(host); - - /* - * Corrective action is based on where in the SCSI SCRIPT(tm) the error - * occurred, as well as which SCSI phase we are currently in. - */ - dsp_next = bus_to_virt(NCR53c7x0_read32(DSP_REG)); - - /* - * Fetch the current instruction, and remove the operands for easier - * interpretation. - */ - dbc_dcmd = NCR53c7x0_read32(DBC_REG); - dcmd = (dbc_dcmd & 0xff000000) >> 24; - /* - * Like other processors, the NCR adjusts the instruction pointer before - * instruction decode. Set the DSP address back to what it should - * be for this instruction based on its size (2 or 3 32 bit words). - */ - dsp = dsp_next - NCR53c7x0_insn_size(dcmd); - - - /* - * Read new SCSI phase from the SBCL lines. Since all of our code uses - * a WHEN conditional instead of an IF conditional, we don't need to - * wait for a new REQ. - */ - sbcl = NCR53c7x0_read8(SBCL_REG) & SBCL_PHASE_MASK; - - if (!cmd) { - action = ACTION_ABORT_PRINT; - where = "no current command"; - /* - * The way my SCSI SCRIPTS(tm) are architected, recoverable phase - * mismatches should only occur where we're doing a multi-byte - * BMI instruction. Specifically, this means - * - * - select messages (a SCSI-I target may ignore additional messages - * after the IDENTIFY; any target may reject a SDTR or WDTR) - * - * - command out (targets may send a message to signal an error - * condition, or go into STATUSIN after they've decided - * they don't like the command. - * - * - reply_message (targets may reject a multi-byte message in the - * middle) - * - * - data transfer routines (command completion with buffer space - * left, disconnect message, or error message) - */ - } else if (((dsp >= cmd->data_transfer_start && - dsp < cmd->data_transfer_end)) || dsp == (cmd->residual + 2)) { - if ((dcmd & (DCMD_TYPE_MASK|DCMD_BMI_OP_MASK|DCMD_BMI_INDIRECT| - DCMD_BMI_MSG|DCMD_BMI_CD)) == (DCMD_TYPE_BMI| - DCMD_BMI_OP_MOVE_I)) { - residual = datapath_residual (host); - if (hostdata->options & OPTION_DEBUG_DISCONNECT) - printk ("scsi%d : handling residual transfer (+ %d bytes from DMA FIFO)\n", - host->host_no, residual); - - /* - * The first instruction is a CALL to the alternate handler for - * this data transfer phase, so we can do calls to - * munge_msg_restart as we would if control were passed - * from normal dynamic code. - */ - if (dsp != cmd->residual + 2) { - cmd->residual[0] = ((DCMD_TYPE_TCI | DCMD_TCI_OP_CALL | - ((dcmd & DCMD_BMI_IO) ? DCMD_TCI_IO : 0)) << 24) | - DBC_TCI_WAIT_FOR_VALID | DBC_TCI_COMPARE_PHASE; - cmd->residual[1] = virt_to_bus(hostdata->script) - + ((dcmd & DCMD_BMI_IO) - ? hostdata->E_other_in : hostdata->E_other_out); - } - - /* - * The second instruction is the a data transfer block - * move instruction, reflecting the pointer and count at the - * time of the phase mismatch. - */ - cmd->residual[2] = dbc_dcmd + residual; - cmd->residual[3] = NCR53c7x0_read32(DNAD_REG) - residual; - - /* - * The third and final instruction is a jump to the instruction - * which follows the instruction which had to be 'split' - */ - if (dsp != cmd->residual + 2) { - cmd->residual[4] = ((DCMD_TYPE_TCI|DCMD_TCI_OP_JUMP) - << 24) | DBC_TCI_TRUE; - cmd->residual[5] = virt_to_bus(dsp_next); - } - - /* - * For the sake of simplicity, transfer control to the - * conditional CALL at the start of the residual buffer. - */ - hostdata->dsp = cmd->residual; - hostdata->dsp_changed = 1; - action = ACTION_CONTINUE; - } else { - where = "non-BMI dynamic DSA code"; - action = ACTION_ABORT_PRINT; - } - } else if (dsp == (hostdata->script + hostdata->E_select_msgout / 4 + 2)) { - /* RGH 290697: Added +2 above, to compensate for the script - * instruction which disables the selection timer. */ - /* Release ATN */ - NCR53c7x0_write8 (SOCL_REG, 0); - switch (sbcl) { - /* - * Some devices (SQ555 come to mind) grab the IDENTIFY message - * sent on selection, and decide to go into COMMAND OUT phase - * rather than accepting the rest of the messages or rejecting - * them. Handle these devices gracefully. - */ - case SBCL_PHASE_CMDOUT: - hostdata->dsp = dsp + 2 /* two _words_ */; - hostdata->dsp_changed = 1; - printk ("scsi%d : target %d ignored SDTR and went into COMMAND OUT\n", - host->host_no, cmd->cmd->device->id); - cmd->flags &= ~CMD_FLAG_SDTR; - action = ACTION_CONTINUE; - break; - case SBCL_PHASE_MSGIN: - hostdata->dsp = hostdata->script + hostdata->E_msg_in / - sizeof(u32); - hostdata->dsp_changed = 1; - action = ACTION_CONTINUE; - break; - default: - where="select message out"; - action = ACTION_ABORT_PRINT; - } - /* - * Some SCSI devices will interpret a command as they read the bytes - * off the SCSI bus, and may decide that the command is Bogus before - * they've read the entire command off the bus. - */ - } else if (dsp == hostdata->script + hostdata->E_cmdout_cmdout / sizeof - (u32)) { - hostdata->dsp = hostdata->script + hostdata->E_data_transfer / - sizeof (u32); - hostdata->dsp_changed = 1; - action = ACTION_CONTINUE; - /* FIXME : we need to handle message reject, etc. within msg_respond. */ -#ifdef notyet - } else if (dsp == hostdata->script + hostdata->E_reply_message) { - switch (sbcl) { - /* Any other phase mismatches abort the currently executing command. */ -#endif - } else { - where = "unknown location"; - action = ACTION_ABORT_PRINT; - } - - /* Flush DMA FIFO */ - if (!hostdata->dstat_valid) { - hostdata->dstat = NCR53c7x0_read8(DSTAT_REG); - hostdata->dstat_valid = 1; - } - if (!(hostdata->dstat & DSTAT_DFE)) { - /* Really need to check this out for 710 RGH */ - NCR53c7x0_write8 (CTEST8_REG, CTEST8_10_CLF); - while (NCR53c7x0_read8 (CTEST8_REG) & CTEST8_10_CLF); - hostdata->dstat |= DSTAT_DFE; - } - - switch (action) { - case ACTION_ABORT_PRINT: - printk("scsi%d : %s : unexpected phase %s.\n", - host->host_no, where ? where : "unknown location", - sbcl_to_phase(sbcl)); - print_lots (host); - /* Fall through to ACTION_ABORT */ - case ACTION_ABORT: - abort_connected (host); - break; - case ACTION_CONTINUE: - break; - } - -#if 0 - if (hostdata->dsp_changed) { - printk("scsi%d: new dsp 0x%p\n", host->host_no, hostdata->dsp); - print_insn (host, hostdata->dsp, "", 1); - } -#endif -} - -/* - * Function : static void intr_bf (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : handle BUS FAULT interrupts - * - * Inputs : host, cmd - host and NCR command causing the interrupt, cmd - * may be NULL. - */ - -static void -intr_bf (struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - u32 *dsp, - *next_dsp, /* Current dsp */ - *dsa, - dbc_dcmd; /* DCMD (high eight bits) + DBC */ - char *reason = NULL; - /* Default behavior is for a silent error, with a retry until we've - exhausted retries. */ - enum {MAYBE, ALWAYS, NEVER} retry = MAYBE; - int report = 0; - NCR53c7x0_local_setup(host); - - dbc_dcmd = NCR53c7x0_read32 (DBC_REG); - next_dsp = bus_to_virt (NCR53c7x0_read32(DSP_REG)); - dsp = next_dsp - NCR53c7x0_insn_size ((dbc_dcmd >> 24) & 0xff); -/* FIXME - check chip type */ - dsa = bus_to_virt (NCR53c7x0_read32(DSA_REG)); - - /* - * Bus faults can be caused by either a Bad Address or - * Target Abort. We should check the Received Target Abort - * bit of the PCI status register and Master Abort Bit. - * - * - Master Abort bit indicates that no device claimed - * the address with DEVSEL within five clocks - * - * - Target Abort bit indicates that a target claimed it, - * but changed its mind once it saw the byte enables. - * - */ - - /* 53c710, not PCI system */ - report = 1; - reason = "Unknown"; - -#ifndef notyet - report = 1; -#endif - if (report && reason) - { - printk(KERN_ALERT "scsi%d : BUS FAULT reason = %s\n", - host->host_no, reason ? reason : "unknown"); - print_lots (host); - } - -#ifndef notyet - retry = NEVER; -#endif - - /* - * TODO : we should attempt to recover from any spurious bus - * faults. After X retries, we should figure that things are - * sufficiently wedged, and call NCR53c7xx_reset. - * - * This code should only get executed once we've decided that we - * cannot retry. - */ - - if (retry == NEVER) { - printk(KERN_ALERT " mail richard@sleepie.demon.co.uk\n"); - FATAL (host); - } -} - -/* - * Function : static void intr_dma (struct Scsi_Host *host, - * struct NCR53c7x0_cmd *cmd) - * - * Purpose : handle all DMA interrupts, indicated by the setting - * of the DIP bit in the ISTAT register. - * - * Inputs : host, cmd - host and NCR command causing the interrupt, cmd - * may be NULL. - */ - -static void -intr_dma (struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned char dstat; /* DSTAT */ - u32 *dsp, - *next_dsp, /* Current dsp */ - *dsa, - dbc_dcmd; /* DCMD (high eight bits) + DBC */ - int tmp; - unsigned long flags; - NCR53c7x0_local_setup(host); - - if (!hostdata->dstat_valid) { - hostdata->dstat = NCR53c7x0_read8(DSTAT_REG); - hostdata->dstat_valid = 1; - } - - dstat = hostdata->dstat; - - if (hostdata->options & OPTION_DEBUG_INTR) - printk("scsi%d : DSTAT=0x%x\n", host->host_no, (int) dstat); - - dbc_dcmd = NCR53c7x0_read32 (DBC_REG); - next_dsp = bus_to_virt(NCR53c7x0_read32(DSP_REG)); - dsp = next_dsp - NCR53c7x0_insn_size ((dbc_dcmd >> 24) & 0xff); -/* XXX - check chip type */ - dsa = bus_to_virt(NCR53c7x0_read32(DSA_REG)); - - /* - * DSTAT_ABRT is the aborted interrupt. This is set whenever the - * SCSI chip is aborted. - * - * With NCR53c700 and NCR53c700-66 style chips, we should only - * get this when the chip is currently running the accept - * reselect/select code and we have set the abort bit in the - * ISTAT register. - * - */ - - if (dstat & DSTAT_ABRT) { -#if 0 - /* XXX - add code here to deal with normal abort */ - if ((hostdata->options & OPTION_700) && (hostdata->state == - STATE_ABORTING)) { - } else -#endif - { - printk(KERN_ALERT "scsi%d : unexpected abort interrupt at\n" - " ", host->host_no); - print_insn (host, dsp, KERN_ALERT "s ", 1); - FATAL (host); - } - } - - /* - * DSTAT_SSI is the single step interrupt. Should be generated - * whenever we have single stepped or are tracing. - */ - - if (dstat & DSTAT_SSI) { - if (hostdata->options & OPTION_DEBUG_TRACE) { - /* Don't print instr. until we write DSP at end of intr function */ - } else if (hostdata->options & OPTION_DEBUG_SINGLE) { - print_insn (host, dsp, "s ", 0); - local_irq_save(flags); -/* XXX - should we do this, or can we get away with writing dsp? */ - - NCR53c7x0_write8 (DCNTL_REG, (NCR53c7x0_read8(DCNTL_REG) & - ~DCNTL_SSM) | DCNTL_STD); - local_irq_restore(flags); - } else { - printk(KERN_ALERT "scsi%d : unexpected single step interrupt at\n" - " ", host->host_no); - print_insn (host, dsp, KERN_ALERT "", 1); - printk(KERN_ALERT " mail drew@PoohSticks.ORG\n"); - FATAL (host); - } - } - - /* - * DSTAT_IID / DSTAT_OPC (same bit, same meaning, only the name - * is different) is generated whenever an illegal instruction is - * encountered. - * - * XXX - we may want to emulate INTFLY here, so we can use - * the same SCSI SCRIPT (tm) for NCR53c710 through NCR53c810 - * chips. - */ - - if (dstat & DSTAT_OPC) { - /* - * Ascertain if this IID interrupts occurred before or after a STO - * interrupt. Since the interrupt handling code now leaves - * DSP unmodified until _after_ all stacked interrupts have been - * processed, reading the DSP returns the original DSP register. - * This means that if dsp lies between the select code, and - * message out following the selection code (where the IID interrupt - * would have to have occurred by due to the implicit wait for REQ), - * we have an IID interrupt resulting from a STO condition and - * can ignore it. - */ - - if (((dsp >= (hostdata->script + hostdata->E_select / sizeof(u32))) && - (dsp <= (hostdata->script + hostdata->E_select_msgout / - sizeof(u32) + 8))) || (hostdata->test_running == 2)) { - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : ignoring DSTAT_IID for SSTAT_STO\n", - host->host_no); - if (hostdata->expecting_iid) { - hostdata->expecting_iid = 0; - hostdata->idle = 1; - if (hostdata->test_running == 2) { - hostdata->test_running = 0; - hostdata->test_completed = 3; - } else if (cmd) - abnormal_finished (cmd, DID_BAD_TARGET << 16); - } else { - hostdata->expecting_sto = 1; - } - /* - * We can't guarantee we'll be able to execute the WAIT DISCONNECT - * instruction within the 3.4us of bus free and arbitration delay - * that a target can RESELECT in and assert REQ after we've dropped - * ACK. If this happens, we'll get an illegal instruction interrupt. - * Doing away with the WAIT DISCONNECT instructions broke everything, - * so instead I'll settle for moving one WAIT DISCONNECT a few - * instructions closer to the CLEAR ACK before it to minimize the - * chances of this happening, and handle it if it occurs anyway. - * - * Simply continue with what we were doing, and control should - * be transferred to the schedule routine which will ultimately - * pass control onto the reselection or selection (not yet) - * code. - */ - } else if (dbc_dcmd == 0x48000000 && (NCR53c7x0_read8 (SBCL_REG) & - SBCL_REQ)) { - if (!(hostdata->options & OPTION_NO_PRINT_RACE)) - { - printk("scsi%d: REQ before WAIT DISCONNECT IID\n", - host->host_no); - hostdata->options |= OPTION_NO_PRINT_RACE; - } - } else { - printk(KERN_ALERT "scsi%d : invalid instruction\n", host->host_no); - print_lots (host); - printk(KERN_ALERT " mail Richard@sleepie.demon.co.uk with ALL\n" - " boot messages and diagnostic output\n"); - FATAL (host); - } - } - - /* - * DSTAT_BF are bus fault errors. DSTAT_800_BF is valid for 710 also. - */ - - if (dstat & DSTAT_800_BF) { - intr_bf (host, cmd); - } - - - /* - * DSTAT_SIR interrupts are generated by the execution of - * the INT instruction. Since the exact values available - * are determined entirely by the SCSI script running, - * and are local to a particular script, a unique handler - * is called for each script. - */ - - if (dstat & DSTAT_SIR) { - if (hostdata->options & OPTION_DEBUG_INTR) - printk ("scsi%d : DSTAT_SIR\n", host->host_no); - switch ((tmp = hostdata->dstat_sir_intr (host, cmd))) { - case SPECIFIC_INT_NOTHING: - case SPECIFIC_INT_RESTART: - break; - case SPECIFIC_INT_ABORT: - abort_connected(host); - break; - case SPECIFIC_INT_PANIC: - printk(KERN_ALERT "scsi%d : failure at ", host->host_no); - print_insn (host, dsp, KERN_ALERT "", 1); - printk(KERN_ALERT " dstat_sir_intr() returned SPECIFIC_INT_PANIC\n"); - FATAL (host); - break; - case SPECIFIC_INT_BREAK: - intr_break (host, cmd); - break; - default: - printk(KERN_ALERT "scsi%d : failure at ", host->host_no); - print_insn (host, dsp, KERN_ALERT "", 1); - printk(KERN_ALERT" dstat_sir_intr() returned unknown value %d\n", - tmp); - FATAL (host); - } - } -} - -/* - * Function : static int print_insn (struct Scsi_Host *host, - * u32 *insn, int kernel) - * - * Purpose : print numeric representation of the instruction pointed - * to by insn to the debugging or kernel message buffer - * as appropriate. - * - * If desired, a user level program can interpret this - * information. - * - * Inputs : host, insn - host, pointer to instruction, prefix - - * string to prepend, kernel - use printk instead of debugging buffer. - * - * Returns : size, in u32s, of instruction printed. - */ - -/* - * FIXME: should change kernel parameter so that it takes an ENUM - * specifying severity - either KERN_ALERT or KERN_PANIC so - * all panic messages are output with the same severity. - */ - -static int -print_insn (struct Scsi_Host *host, const u32 *insn, - const char *prefix, int kernel) { - char buf[160], /* Temporary buffer and pointer. ICKY - arbitrary length. */ - - - *tmp; - unsigned char dcmd; /* dcmd register for *insn */ - int size; - - /* - * Check to see if the instruction pointer is not bogus before - * indirecting through it; avoiding red-zone at start of - * memory. - * - * FIXME: icky magic needs to happen here on non-intel boxes which - * don't have kernel memory mapped in like this. Might be reasonable - * to use vverify()? - */ - - if (virt_to_phys((void *)insn) < PAGE_SIZE || - virt_to_phys((void *)(insn + 8)) > virt_to_phys(high_memory) || - ((((dcmd = (insn[0] >> 24) & 0xff) & DCMD_TYPE_MMI) == DCMD_TYPE_MMI) && - virt_to_phys((void *)(insn + 12)) > virt_to_phys(high_memory))) { - size = 0; - sprintf (buf, "%s%p: address out of range\n", - prefix, insn); - } else { -/* - * FIXME : (void *) cast in virt_to_bus should be unnecessary, because - * it should take const void * as argument. - */ -#if !defined(CONFIG_MVME16x) && !defined(CONFIG_BVME6000) - sprintf(buf, "%s0x%lx (virt 0x%p) : 0x%08x 0x%08x (virt 0x%p)", - (prefix ? prefix : ""), virt_to_bus((void *) insn), insn, - insn[0], insn[1], bus_to_virt (insn[1])); -#else - /* Remove virtual addresses to reduce output, as they are the same */ - sprintf(buf, "%s0x%x (+%x) : 0x%08x 0x%08x", - (prefix ? prefix : ""), (u32)insn, ((u32)insn - - (u32)&(((struct NCR53c7x0_hostdata *)host->hostdata[0])->script))/4, - insn[0], insn[1]); -#endif - tmp = buf + strlen(buf); - if ((dcmd & DCMD_TYPE_MASK) == DCMD_TYPE_MMI) { -#if !defined(CONFIG_MVME16x) && !defined(CONFIG_BVME6000) - sprintf (tmp, " 0x%08x (virt 0x%p)\n", insn[2], - bus_to_virt(insn[2])); -#else - /* Remove virtual addr to reduce output, as it is the same */ - sprintf (tmp, " 0x%08x\n", insn[2]); -#endif - size = 3; - } else { - sprintf (tmp, "\n"); - size = 2; - } - } - - if (kernel) - printk ("%s", buf); -#ifdef NCR_DEBUG - else { - size_t len = strlen(buf); - debugger_kernel_write(host, buf, len); - } -#endif - return size; -} - -/* - * Function : int NCR53c7xx_abort (Scsi_Cmnd *cmd) - * - * Purpose : Abort an errant SCSI command, doing all necessary - * cleanup of the issue_queue, running_list, shared Linux/NCR - * dsa issue and reconnect queues. - * - * Inputs : cmd - command to abort, code - entire result field - * - * Returns : 0 on success, -1 on failure. - */ - -int -NCR53c7xx_abort (Scsi_Cmnd *cmd) { - NCR53c7x0_local_declare(); - struct Scsi_Host *host = cmd->device->host; - struct NCR53c7x0_hostdata *hostdata = host ? (struct NCR53c7x0_hostdata *) - host->hostdata[0] : NULL; - unsigned long flags; - struct NCR53c7x0_cmd *curr, **prev; - Scsi_Cmnd *me, **last; -#if 0 - static long cache_pid = -1; -#endif - - - if (!host) { - printk ("Bogus SCSI command pid %ld; no host structure\n", - cmd->pid); - return SCSI_ABORT_ERROR; - } else if (!hostdata) { - printk ("Bogus SCSI host %d; no hostdata\n", host->host_no); - return SCSI_ABORT_ERROR; - } - NCR53c7x0_local_setup(host); - -/* - * CHECK : I don't think that reading ISTAT will unstack any interrupts, - * since we need to write the INTF bit to clear it, and SCSI/DMA - * interrupts don't clear until we read SSTAT/SIST and DSTAT registers. - * - * See that this is the case. Appears to be correct on the 710, at least. - * - * I suspect that several of our failures may be coming from a new fatal - * interrupt (possibly due to a phase mismatch) happening after we've left - * the interrupt handler, but before the PIC has had the interrupt condition - * cleared. - */ - - if (NCR53c7x0_read8(hostdata->istat) & (ISTAT_DIP|ISTAT_SIP)) { - printk ("scsi%d : dropped interrupt for command %ld\n", host->host_no, - cmd->pid); - NCR53c7x0_intr (host->irq, NULL, NULL); - return SCSI_ABORT_BUSY; - } - - local_irq_save(flags); -#if 0 - if (cache_pid == cmd->pid) - panic ("scsi%d : bloody fetus %d\n", host->host_no, cmd->pid); - else - cache_pid = cmd->pid; -#endif - - -/* - * The command could be hiding in the issue_queue. This would be very - * nice, as commands can't be moved from the high level driver's issue queue - * into the shared queue until an interrupt routine is serviced, and this - * moving is atomic. - * - * If this is the case, we don't have to worry about anything - we simply - * pull the command out of the old queue, and call it aborted. - */ - - for (me = (Scsi_Cmnd *) hostdata->issue_queue, - last = (Scsi_Cmnd **) &(hostdata->issue_queue); - me && me != cmd; last = (Scsi_Cmnd **)&(me->SCp.ptr), - me = (Scsi_Cmnd *)me->SCp.ptr); - - if (me) { - *last = (Scsi_Cmnd *) me->SCp.ptr; - if (me->host_scribble) { - ((struct NCR53c7x0_cmd *)me->host_scribble)->next = hostdata->free; - hostdata->free = (struct NCR53c7x0_cmd *) me->host_scribble; - me->host_scribble = NULL; - } - cmd->result = DID_ABORT << 16; - cmd->scsi_done(cmd); - printk ("scsi%d : found command %ld in Linux issue queue\n", - host->host_no, me->pid); - local_irq_restore(flags); - run_process_issue_queue(); - return SCSI_ABORT_SUCCESS; - } - -/* - * That failing, the command could be in our list of already executing - * commands. If this is the case, drastic measures are called for. - */ - - for (curr = (struct NCR53c7x0_cmd *) hostdata->running_list, - prev = (struct NCR53c7x0_cmd **) &(hostdata->running_list); - curr && curr->cmd != cmd; prev = (struct NCR53c7x0_cmd **) - &(curr->next), curr = (struct NCR53c7x0_cmd *) curr->next); - - if (curr) { - if ((curr->result & 0xff) != 0xff && (curr->result & 0xff00) != 0xff00) { - cmd->result = curr->result; - if (prev) - *prev = (struct NCR53c7x0_cmd *) curr->next; - curr->next = (struct NCR53c7x0_cmd *) hostdata->free; - cmd->host_scribble = NULL; - hostdata->free = curr; - cmd->scsi_done(cmd); - printk ("scsi%d : found finished command %ld in running list\n", - host->host_no, cmd->pid); - local_irq_restore(flags); - return SCSI_ABORT_NOT_RUNNING; - } else { - printk ("scsi%d : DANGER : command running, can not abort.\n", - cmd->device->host->host_no); - local_irq_restore(flags); - return SCSI_ABORT_BUSY; - } - } - -/* - * And if we couldn't find it in any of our queues, it must have been - * a dropped interrupt. - */ - - curr = (struct NCR53c7x0_cmd *) cmd->host_scribble; - if (curr) { - curr->next = hostdata->free; - hostdata->free = curr; - cmd->host_scribble = NULL; - } - - if (curr == NULL || ((curr->result & 0xff00) == 0xff00) || - ((curr->result & 0xff) == 0xff)) { - printk ("scsi%d : did this command ever run?\n", host->host_no); - cmd->result = DID_ABORT << 16; - } else { - printk ("scsi%d : probably lost INTFLY, normal completion\n", - host->host_no); - cmd->result = curr->result; -/* - * FIXME : We need to add an additional flag which indicates if a - * command was ever counted as BUSY, so if we end up here we can - * decrement the busy count if and only if it is necessary. - */ - --hostdata->busy[cmd->device->id][cmd->device->lun]; - } - local_irq_restore(flags); - cmd->scsi_done(cmd); - -/* - * We need to run process_issue_queue since termination of this command - * may allow another queued command to execute first? - */ - return SCSI_ABORT_NOT_RUNNING; -} - -/* - * Function : int NCR53c7xx_reset (Scsi_Cmnd *cmd) - * - * Purpose : perform a hard reset of the SCSI bus and NCR - * chip. - * - * Inputs : cmd - command which caused the SCSI RESET - * - * Returns : 0 on success. - */ - -int -NCR53c7xx_reset (Scsi_Cmnd *cmd, unsigned int reset_flags) { - NCR53c7x0_local_declare(); - unsigned long flags; - int found = 0; - struct NCR53c7x0_cmd * c; - Scsi_Cmnd *tmp; - /* - * When we call scsi_done(), it's going to wake up anything sleeping on the - * resources which were in use by the aborted commands, and we'll start to - * get new commands. - * - * We can't let this happen until after we've re-initialized the driver - * structures, and can't reinitialize those structures until after we've - * dealt with their contents. - * - * So, we need to find all of the commands which were running, stick - * them on a linked list of completed commands (we'll use the host_scribble - * pointer), do our reinitialization, and then call the done function for - * each command. - */ - Scsi_Cmnd *nuke_list = NULL; - struct Scsi_Host *host = cmd->device->host; - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - - NCR53c7x0_local_setup(host); - local_irq_save(flags); - ncr_halt (host); - print_lots (host); - dump_events (host, 30); - ncr_scsi_reset (host); - for (tmp = nuke_list = return_outstanding_commands (host, 1 /* free */, - 0 /* issue */ ); tmp; tmp = (Scsi_Cmnd *) tmp->SCp.buffer) - if (tmp == cmd) { - found = 1; - break; - } - - /* - * If we didn't find the command which caused this reset in our running - * list, then we've lost it. See that it terminates normally anyway. - */ - if (!found) { - c = (struct NCR53c7x0_cmd *) cmd->host_scribble; - if (c) { - cmd->host_scribble = NULL; - c->next = hostdata->free; - hostdata->free = c; - } else - printk ("scsi%d: lost command %ld\n", host->host_no, cmd->pid); - cmd->SCp.buffer = (struct scatterlist *) nuke_list; - nuke_list = cmd; - } - - NCR53c7x0_driver_init (host); - hostdata->soft_reset (host); - if (hostdata->resets == 0) - disable(host); - else if (hostdata->resets != -1) - --hostdata->resets; - local_irq_restore(flags); - for (; nuke_list; nuke_list = tmp) { - tmp = (Scsi_Cmnd *) nuke_list->SCp.buffer; - nuke_list->result = DID_RESET << 16; - nuke_list->scsi_done (nuke_list); - } - local_irq_restore(flags); - return SCSI_RESET_SUCCESS; -} - -/* - * The NCR SDMS bios follows Annex A of the SCSI-CAM draft, and - * therefore shares the scsicam_bios_param function. - */ - -/* - * Function : int insn_to_offset (Scsi_Cmnd *cmd, u32 *insn) - * - * Purpose : convert instructions stored at NCR pointer into data - * pointer offset. - * - * Inputs : cmd - SCSI command; insn - pointer to instruction. Either current - * DSP, or saved data pointer. - * - * Returns : offset on success, -1 on failure. - */ - - -static int -insn_to_offset (Scsi_Cmnd *cmd, u32 *insn) { - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) cmd->device->host->hostdata[0]; - struct NCR53c7x0_cmd *ncmd = - (struct NCR53c7x0_cmd *) cmd->host_scribble; - int offset = 0, buffers; - struct scatterlist *segment; - char *ptr; - int found = 0; - -/* - * With the current code implementation, if the insn is inside dynamically - * generated code, the data pointer will be the instruction preceding - * the next transfer segment. - */ - - if (!check_address ((unsigned long) ncmd, sizeof (struct NCR53c7x0_cmd)) && - ((insn >= ncmd->data_transfer_start && - insn < ncmd->data_transfer_end) || - (insn >= ncmd->residual && - insn < (ncmd->residual + - sizeof(ncmd->residual))))) { - ptr = bus_to_virt(insn[3]); - - if ((buffers = cmd->use_sg)) { - for (offset = 0, - segment = (struct scatterlist *) cmd->request_buffer; - buffers && !((found = ((ptr >= (char *)page_address(segment->page)+segment->offset) && - (ptr < ((char *)page_address(segment->page)+segment->offset+segment->length))))); - --buffers, offset += segment->length, ++segment) -#if 0 - printk("scsi%d: comparing 0x%p to 0x%p\n", - cmd->device->host->host_no, saved, page_address(segment->page+segment->offset)); -#else - ; -#endif - offset += ptr - ((char *)page_address(segment->page)+segment->offset); - } else { - found = 1; - offset = ptr - (char *) (cmd->request_buffer); - } - } else if ((insn >= hostdata->script + - hostdata->E_data_transfer / sizeof(u32)) && - (insn <= hostdata->script + - hostdata->E_end_data_transfer / sizeof(u32))) { - found = 1; - offset = 0; - } - return found ? offset : -1; -} - - - -/* - * Function : void print_progress (Scsi_Cmnd *cmd) - * - * Purpose : print the current location of the saved data pointer - * - * Inputs : cmd - command we are interested in - * - */ - -static void -print_progress (Scsi_Cmnd *cmd) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_cmd *ncmd = - (struct NCR53c7x0_cmd *) cmd->host_scribble; - int offset, i; - char *where; - u32 *ptr; - NCR53c7x0_local_setup (cmd->device->host); - - if (check_address ((unsigned long) ncmd,sizeof (struct NCR53c7x0_cmd)) == 0) - { - printk("\nNCR53c7x0_cmd fields:\n"); - printk(" bounce.len=0x%x, addr=0x%0x, buf[]=0x%02x %02x %02x %02x\n", - ncmd->bounce.len, ncmd->bounce.addr, ncmd->bounce.buf[0], - ncmd->bounce.buf[1], ncmd->bounce.buf[2], ncmd->bounce.buf[3]); - printk(" result=%04x, cdb[0]=0x%02x\n", ncmd->result, ncmd->cmnd[0]); - } - - for (i = 0; i < 2; ++i) { - if (check_address ((unsigned long) ncmd, - sizeof (struct NCR53c7x0_cmd)) == -1) - continue; - if (!i) { - where = "saved"; - ptr = bus_to_virt(ncmd->saved_data_pointer); - } else { - where = "active"; - ptr = bus_to_virt (NCR53c7x0_read32 (DSP_REG) - - NCR53c7x0_insn_size (NCR53c7x0_read8 (DCMD_REG)) * - sizeof(u32)); - } - offset = insn_to_offset (cmd, ptr); - - if (offset != -1) - printk ("scsi%d : %s data pointer at offset %d\n", - cmd->device->host->host_no, where, offset); - else { - int size; - printk ("scsi%d : can't determine %s data pointer offset\n", - cmd->device->host->host_no, where); - if (ncmd) { - size = print_insn (cmd->device->host, - bus_to_virt(ncmd->saved_data_pointer), "", 1); - print_insn (cmd->device->host, - bus_to_virt(ncmd->saved_data_pointer) + size * sizeof(u32), - "", 1); - } - } - } -} - - -static void -print_dsa (struct Scsi_Host *host, u32 *dsa, const char *prefix) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int i, len; - char *ptr; - Scsi_Cmnd *cmd; - - if (check_address ((unsigned long) dsa, hostdata->dsa_end - - hostdata->dsa_start) == -1) { - printk("scsi%d : bad dsa virt 0x%p\n", host->host_no, dsa); - return; - } - printk("%sscsi%d : dsa at phys 0x%lx (virt 0x%p)\n" - " + %d : dsa_msgout length = %u, data = 0x%x (virt 0x%p)\n" , - prefix ? prefix : "", - host->host_no, virt_to_bus (dsa), dsa, hostdata->dsa_msgout, - dsa[hostdata->dsa_msgout / sizeof(u32)], - dsa[hostdata->dsa_msgout / sizeof(u32) + 1], - bus_to_virt (dsa[hostdata->dsa_msgout / sizeof(u32) + 1])); - - /* - * Only print messages if they're sane in length so we don't - * blow the kernel printk buffer on something which won't buy us - * anything. - */ - - if (dsa[hostdata->dsa_msgout / sizeof(u32)] < - sizeof (hostdata->free->select)) - for (i = dsa[hostdata->dsa_msgout / sizeof(u32)], - ptr = bus_to_virt (dsa[hostdata->dsa_msgout / sizeof(u32) + 1]); - i > 0 && !check_address ((unsigned long) ptr, 1); - ptr += len, i -= len) { - printk(" "); - len = spi_print_msg(ptr); - printk("\n"); - if (!len) - break; - } - - printk(" + %d : select_indirect = 0x%x\n", - hostdata->dsa_select, dsa[hostdata->dsa_select / sizeof(u32)]); - cmd = (Scsi_Cmnd *) bus_to_virt(dsa[hostdata->dsa_cmnd / sizeof(u32)]); - printk(" + %d : dsa_cmnd = 0x%x ", hostdata->dsa_cmnd, - (u32) virt_to_bus(cmd)); - /* XXX Maybe we should access cmd->host_scribble->result here. RGH */ - if (cmd) { - printk(" result = 0x%x, target = %d, lun = %d, cmd = ", - cmd->result, cmd->device->id, cmd->device->lun); - __scsi_print_command(cmd->cmnd); - } else - printk("\n"); - printk(" + %d : dsa_next = 0x%x\n", hostdata->dsa_next, - dsa[hostdata->dsa_next / sizeof(u32)]); - if (cmd) { - printk("scsi%d target %d : sxfer_sanity = 0x%x, scntl3_sanity = 0x%x\n" - " script : ", - host->host_no, cmd->device->id, - hostdata->sync[cmd->device->id].sxfer_sanity, - hostdata->sync[cmd->device->id].scntl3_sanity); - for (i = 0; i < (sizeof(hostdata->sync[cmd->device->id].script) / 4); ++i) - printk ("0x%x ", hostdata->sync[cmd->device->id].script[i]); - printk ("\n"); - print_progress (cmd); - } -} -/* - * Function : void print_queues (Scsi_Host *host) - * - * Purpose : print the contents of the NCR issue and reconnect queues - * - * Inputs : host - SCSI host we are interested in - * - */ - -static void -print_queues (struct Scsi_Host *host) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - u32 *dsa, *next_dsa; - volatile u32 *ncrcurrent; - int left; - Scsi_Cmnd *cmd, *next_cmd; - unsigned long flags; - - printk ("scsi%d : issue queue\n", host->host_no); - - for (left = host->can_queue, cmd = (Scsi_Cmnd *) hostdata->issue_queue; - left >= 0 && cmd; - cmd = next_cmd) { - next_cmd = (Scsi_Cmnd *) cmd->SCp.ptr; - local_irq_save(flags); - if (cmd->host_scribble) { - if (check_address ((unsigned long) (cmd->host_scribble), - sizeof (cmd->host_scribble)) == -1) - printk ("scsi%d: scsi pid %ld bad pointer to NCR53c7x0_cmd\n", - host->host_no, cmd->pid); - /* print_dsa does sanity check on address, no need to check */ - else - print_dsa (host, ((struct NCR53c7x0_cmd *) cmd->host_scribble) - -> dsa, ""); - } else - printk ("scsi%d : scsi pid %ld for target %d lun %d has no NCR53c7x0_cmd\n", - host->host_no, cmd->pid, cmd->device->id, cmd->device->lun); - local_irq_restore(flags); - } - - if (left <= 0) { - printk ("scsi%d : loop detected in issue queue\n", - host->host_no); - } - - /* - * Traverse the NCR reconnect and start DSA structures, printing out - * each element until we hit the end or detect a loop. Currently, - * the reconnect structure is a linked list; and the start structure - * is an array. Eventually, the reconnect structure will become a - * list as well, since this simplifies the code. - */ - - printk ("scsi%d : schedule dsa array :\n", host->host_no); - for (left = host->can_queue, ncrcurrent = hostdata->schedule; - left > 0; ncrcurrent += 2, --left) - if (ncrcurrent[0] != hostdata->NOP_insn) -/* FIXME : convert pointer to dsa_begin to pointer to dsa. */ - print_dsa (host, bus_to_virt (ncrcurrent[1] - - (hostdata->E_dsa_code_begin - - hostdata->E_dsa_code_template)), ""); - printk ("scsi%d : end schedule dsa array\n", host->host_no); - - printk ("scsi%d : reconnect_dsa_head :\n", host->host_no); - - for (left = host->can_queue, - dsa = bus_to_virt (hostdata->reconnect_dsa_head); - left >= 0 && dsa; - dsa = next_dsa) { - local_irq_save(flags); - if (check_address ((unsigned long) dsa, sizeof(dsa)) == -1) { - printk ("scsi%d: bad DSA pointer 0x%p", host->host_no, - dsa); - next_dsa = NULL; - } - else - { - next_dsa = bus_to_virt(dsa[hostdata->dsa_next / sizeof(u32)]); - print_dsa (host, dsa, ""); - } - local_irq_restore(flags); - } - printk ("scsi%d : end reconnect_dsa_head\n", host->host_no); - if (left < 0) - printk("scsi%d: possible loop in ncr reconnect list\n", - host->host_no); -} - -static void -print_lots (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - u32 *dsp_next, *dsp, *dsa, dbc_dcmd; - unsigned char dcmd, sbcl; - int i, size; - NCR53c7x0_local_setup(host); - - if ((dsp_next = bus_to_virt(NCR53c7x0_read32 (DSP_REG)))) { - dbc_dcmd = NCR53c7x0_read32(DBC_REG); - dcmd = (dbc_dcmd & 0xff000000) >> 24; - dsp = dsp_next - NCR53c7x0_insn_size(dcmd); - dsa = bus_to_virt(NCR53c7x0_read32(DSA_REG)); - sbcl = NCR53c7x0_read8 (SBCL_REG); - - /* - * For the 53c710, the following will report value 0 for SCNTL3 - * and STEST0 - we don't have these registers. - */ - printk ("scsi%d : DCMD|DBC=0x%x, DNAD=0x%x (virt 0x%p)\n" - " DSA=0x%lx (virt 0x%p)\n" - " DSPS=0x%x, TEMP=0x%x (virt 0x%p), DMODE=0x%x\n" - " SXFER=0x%x, SCNTL3=0x%x\n" - " %s%s%sphase=%s, %d bytes in SCSI FIFO\n" - " SCRATCH=0x%x, saved2_dsa=0x%0lx\n", - host->host_no, dbc_dcmd, NCR53c7x0_read32(DNAD_REG), - bus_to_virt(NCR53c7x0_read32(DNAD_REG)), - virt_to_bus(dsa), dsa, - NCR53c7x0_read32(DSPS_REG), NCR53c7x0_read32(TEMP_REG), - bus_to_virt (NCR53c7x0_read32(TEMP_REG)), - (int) NCR53c7x0_read8(hostdata->dmode), - (int) NCR53c7x0_read8(SXFER_REG), - ((hostdata->chip / 100) == 8) ? - (int) NCR53c7x0_read8(SCNTL3_REG_800) : 0, - (sbcl & SBCL_BSY) ? "BSY " : "", - (sbcl & SBCL_SEL) ? "SEL " : "", - (sbcl & SBCL_REQ) ? "REQ " : "", - sstat2_to_phase(NCR53c7x0_read8 (((hostdata->chip / 100) == 8) ? - SSTAT1_REG : SSTAT2_REG)), - (NCR53c7x0_read8 ((hostdata->chip / 100) == 8 ? - SSTAT1_REG : SSTAT2_REG) & SSTAT2_FF_MASK) >> SSTAT2_FF_SHIFT, - ((hostdata->chip / 100) == 8) ? NCR53c7x0_read8 (STEST0_REG_800) : - NCR53c7x0_read32(SCRATCHA_REG_800), - hostdata->saved2_dsa); - printk ("scsi%d : DSP 0x%lx (virt 0x%p) ->\n", host->host_no, - virt_to_bus(dsp), dsp); - for (i = 6; i > 0; --i, dsp += size) - size = print_insn (host, dsp, "", 1); - if (NCR53c7x0_read8 (SCNTL1_REG) & SCNTL1_CON) { - if ((hostdata->chip / 100) == 8) - printk ("scsi%d : connected (SDID=0x%x, SSID=0x%x)\n", - host->host_no, NCR53c7x0_read8 (SDID_REG_800), - NCR53c7x0_read8 (SSID_REG_800)); - else - printk ("scsi%d : connected (SDID=0x%x)\n", - host->host_no, NCR53c7x0_read8 (SDID_REG_700)); - print_dsa (host, dsa, ""); - } - -#if 1 - print_queues (host); -#endif - } -} - -/* - * Function : static int shutdown (struct Scsi_Host *host) - * - * Purpose : does a clean (we hope) shutdown of the NCR SCSI - * chip. Use prior to dumping core, unloading the NCR driver, - * - * Returns : 0 on success - */ -static int -shutdown (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - unsigned long flags; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - NCR53c7x0_local_setup(host); - local_irq_save(flags); -/* Get in a state where we can reset the SCSI bus */ - ncr_halt (host); - ncr_scsi_reset (host); - hostdata->soft_reset(host); - - disable (host); - local_irq_restore(flags); - return 0; -} - -/* - * Function : void ncr_scsi_reset (struct Scsi_Host *host) - * - * Purpose : reset the SCSI bus. - */ - -static void -ncr_scsi_reset (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - unsigned long flags; - NCR53c7x0_local_setup(host); - local_irq_save(flags); - NCR53c7x0_write8(SCNTL1_REG, SCNTL1_RST); - udelay(25); /* Minimum amount of time to assert RST */ - NCR53c7x0_write8(SCNTL1_REG, 0); - local_irq_restore(flags); -} - -/* - * Function : void hard_reset (struct Scsi_Host *host) - * - */ - -static void -hard_reset (struct Scsi_Host *host) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned long flags; - local_irq_save(flags); - ncr_scsi_reset(host); - NCR53c7x0_driver_init (host); - if (hostdata->soft_reset) - hostdata->soft_reset (host); - local_irq_restore(flags); -} - - -/* - * Function : Scsi_Cmnd *return_outstanding_commands (struct Scsi_Host *host, - * int free, int issue) - * - * Purpose : return a linked list (using the SCp.buffer field as next, - * so we don't perturb hostdata. We don't use a field of the - * NCR53c7x0_cmd structure since we may not have allocated one - * for the command causing the reset.) of Scsi_Cmnd structures that - * had propagated below the Linux issue queue level. If free is set, - * free the NCR53c7x0_cmd structures which are associated with - * the Scsi_Cmnd structures, and clean up any internal - * NCR lists that the commands were on. If issue is set, - * also return commands in the issue queue. - * - * Returns : linked list of commands - * - * NOTE : the caller should insure that the NCR chip is halted - * if the free flag is set. - */ - -static Scsi_Cmnd * -return_outstanding_commands (struct Scsi_Host *host, int free, int issue) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - struct NCR53c7x0_cmd *c; - int i; - u32 *ncrcurrent; - Scsi_Cmnd *list = NULL, *tmp; - for (c = (struct NCR53c7x0_cmd *) hostdata->running_list; c; - c = (struct NCR53c7x0_cmd *) c->next) { - if (c->cmd->SCp.buffer) { - printk ("scsi%d : loop detected in running list!\n", host->host_no); - break; - } else { - printk ("Duh? Bad things happening in the NCR driver\n"); - break; - } - - c->cmd->SCp.buffer = (struct scatterlist *) list; - list = c->cmd; - if (free) { - c->next = hostdata->free; - hostdata->free = c; - } - } - - if (free) { - for (i = 0, ncrcurrent = (u32 *) hostdata->schedule; - i < host->can_queue; ++i, ncrcurrent += 2) { - ncrcurrent[0] = hostdata->NOP_insn; - ncrcurrent[1] = 0xdeadbeef; - } - hostdata->ncrcurrent = NULL; - } - - if (issue) { - for (tmp = (Scsi_Cmnd *) hostdata->issue_queue; tmp; tmp = tmp->next) { - if (tmp->SCp.buffer) { - printk ("scsi%d : loop detected in issue queue!\n", - host->host_no); - break; - } - tmp->SCp.buffer = (struct scatterlist *) list; - list = tmp; - } - if (free) - hostdata->issue_queue = NULL; - - } - return list; -} - -/* - * Function : static int disable (struct Scsi_Host *host) - * - * Purpose : disables the given NCR host, causing all commands - * to return a driver error. Call this so we can unload the - * module during development and try again. Eventually, - * we should be able to find clean workarounds for these - * problems. - * - * Inputs : host - hostadapter to twiddle - * - * Returns : 0 on success. - */ - -static int -disable (struct Scsi_Host *host) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - unsigned long flags; - Scsi_Cmnd *nuke_list, *tmp; - local_irq_save(flags); - if (hostdata->state != STATE_HALTED) - ncr_halt (host); - nuke_list = return_outstanding_commands (host, 1 /* free */, 1 /* issue */); - hard_reset (host); - hostdata->state = STATE_DISABLED; - local_irq_restore(flags); - printk ("scsi%d : nuking commands\n", host->host_no); - for (; nuke_list; nuke_list = tmp) { - tmp = (Scsi_Cmnd *) nuke_list->SCp.buffer; - nuke_list->result = DID_ERROR << 16; - nuke_list->scsi_done(nuke_list); - } - printk ("scsi%d : done. \n", host->host_no); - printk (KERN_ALERT "scsi%d : disabled. Unload and reload\n", - host->host_no); - return 0; -} - -/* - * Function : static int ncr_halt (struct Scsi_Host *host) - * - * Purpose : halts the SCSI SCRIPTS(tm) processor on the NCR chip - * - * Inputs : host - SCSI chip to halt - * - * Returns : 0 on success - */ - -static int -ncr_halt (struct Scsi_Host *host) { - NCR53c7x0_local_declare(); - unsigned long flags; - unsigned char istat, tmp; - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - int stage; - NCR53c7x0_local_setup(host); - - local_irq_save(flags); - /* Stage 0 : eat all interrupts - Stage 1 : set ABORT - Stage 2 : eat all but abort interrupts - Stage 3 : eat all interrupts - */ - for (stage = 0;;) { - if (stage == 1) { - NCR53c7x0_write8(hostdata->istat, ISTAT_ABRT); - ++stage; - } - istat = NCR53c7x0_read8 (hostdata->istat); - if (istat & ISTAT_SIP) { - tmp = NCR53c7x0_read8(SSTAT0_REG); - } else if (istat & ISTAT_DIP) { - tmp = NCR53c7x0_read8(DSTAT_REG); - if (stage == 2) { - if (tmp & DSTAT_ABRT) { - NCR53c7x0_write8(hostdata->istat, 0); - ++stage; - } else { - printk(KERN_ALERT "scsi%d : could not halt NCR chip\n", - host->host_no); - disable (host); - } - } - } - if (!(istat & (ISTAT_SIP|ISTAT_DIP))) { - if (stage == 0) - ++stage; - else if (stage == 3) - break; - } - } - hostdata->state = STATE_HALTED; - local_irq_restore(flags); -#if 0 - print_lots (host); -#endif - return 0; -} - -/* - * Function: event_name (int event) - * - * Purpose: map event enum into user-readable strings. - */ - -static const char * -event_name (int event) { - switch (event) { - case EVENT_NONE: return "none"; - case EVENT_ISSUE_QUEUE: return "to issue queue"; - case EVENT_START_QUEUE: return "to start queue"; - case EVENT_SELECT: return "selected"; - case EVENT_DISCONNECT: return "disconnected"; - case EVENT_RESELECT: return "reselected"; - case EVENT_COMPLETE: return "completed"; - case EVENT_IDLE: return "idle"; - case EVENT_SELECT_FAILED: return "select failed"; - case EVENT_BEFORE_SELECT: return "before select"; - case EVENT_RESELECT_FAILED: return "reselect failed"; - default: return "unknown"; - } -} - -/* - * Function : void dump_events (struct Scsi_Host *host, count) - * - * Purpose : print last count events which have occurred. - */ -static void -dump_events (struct Scsi_Host *host, int count) { - struct NCR53c7x0_hostdata *hostdata = (struct NCR53c7x0_hostdata *) - host->hostdata[0]; - struct NCR53c7x0_event event; - int i; - unsigned long flags; - if (hostdata->events) { - if (count > hostdata->event_size) - count = hostdata->event_size; - for (i = hostdata->event_index; count > 0; - i = (i ? i - 1 : hostdata->event_size -1), --count) { -/* - * By copying the event we're currently examining with interrupts - * disabled, we can do multiple printk(), etc. operations and - * still be guaranteed that they're happening on the same - * event structure. - */ - local_irq_save(flags); -#if 0 - event = hostdata->events[i]; -#else - memcpy ((void *) &event, (void *) &(hostdata->events[i]), - sizeof(event)); -#endif - - local_irq_restore(flags); - printk ("scsi%d : %s event %d at %ld secs %ld usecs target %d lun %d\n", - host->host_no, event_name (event.event), count, - (long) event.time.tv_sec, (long) event.time.tv_usec, - event.target, event.lun); - if (event.dsa) - printk (" event for dsa 0x%lx (virt 0x%p)\n", - virt_to_bus(event.dsa), event.dsa); - if (event.pid != -1) { - printk (" event for pid %ld ", event.pid); - __scsi_print_command (event.cmnd); - } - } - } -} - -/* - * Function: check_address - * - * Purpose: Check to see if a possibly corrupt pointer will fault the - * kernel. - * - * Inputs: addr - address; size - size of area - * - * Returns: 0 if area is OK, -1 on error. - * - * NOTES: should be implemented in terms of vverify on kernels - * that have it. - */ - -static int -check_address (unsigned long addr, int size) { - return (virt_to_phys((void *)addr) < PAGE_SIZE || virt_to_phys((void *)(addr + size)) > virt_to_phys(high_memory) ? -1 : 0); -} - -#ifdef MODULE -int -NCR53c7x0_release(struct Scsi_Host *host) { - struct NCR53c7x0_hostdata *hostdata = - (struct NCR53c7x0_hostdata *) host->hostdata[0]; - struct NCR53c7x0_cmd *cmd, *tmp; - shutdown (host); - if (host->irq != SCSI_IRQ_NONE) - { - int irq_count; - struct Scsi_Host *tmp; - for (irq_count = 0, tmp = first_host; tmp; tmp = tmp->next) - if (tmp->hostt == the_template && tmp->irq == host->irq) - ++irq_count; - if (irq_count == 1) - free_irq(host->irq, NULL); - } - if (host->dma_channel != DMA_NONE) - free_dma(host->dma_channel); - if (host->io_port) - release_region(host->io_port, host->n_io_port); - - for (cmd = (struct NCR53c7x0_cmd *) hostdata->free; cmd; cmd = tmp, - --hostdata->num_cmds) { - tmp = (struct NCR53c7x0_cmd *) cmd->next; - /* - * If we're going to loop, try to stop it to get a more accurate - * count of the leaked commands. - */ - cmd->next = NULL; - if (cmd->free) - cmd->free ((void *) cmd->real, cmd->size); - } - if (hostdata->num_cmds) - printk ("scsi%d : leaked %d NCR53c7x0_cmd structures\n", - host->host_no, hostdata->num_cmds); - - vfree(hostdata->events); - - /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING, which - * XXX may be invalid (CONFIG_060_WRITETHROUGH) - */ - kernel_set_cachemode((void *)hostdata, 8192, IOMAP_FULL_CACHING); - free_pages ((u32)hostdata, 1); - return 1; -} -#endif /* def MODULE */ diff --git a/drivers/scsi/53c7xx.h b/drivers/scsi/53c7xx.h deleted file mode 100644 index 218f3b9..0000000 --- a/drivers/scsi/53c7xx.h +++ /dev/null @@ -1,1608 +0,0 @@ -/* - * 53c710 driver. Modified from Drew Eckhardts driver - * for 53c810 by Richard Hirst [richard@sleepie.demon.co.uk] - * - * I have left the code for the 53c8xx family in here, because it didn't - * seem worth removing it. The possibility of IO_MAPPED chips rather - * than MEMORY_MAPPED remains, in case someone wants to add support for - * 53c710 chips on Intel PCs (some older machines have them on the - * motherboard). - * - * NOTE THERE MAY BE PROBLEMS WITH CASTS IN read8 AND Co. - */ - -/* - * NCR 53c{7,8}0x0 driver, header file - * - * Sponsored by - * iX Multiuser Multitasking Magazine - * Hannover, Germany - * hm@ix.de - * - * Copyright 1993, 1994, 1995 Drew Eckhardt - * Visionary Computing - * (Unix and Linux consulting and custom programming) - * drew@PoohSticks.ORG - * +1 (303) 786-7975 - * - * TolerANT and SCSI SCRIPTS are registered trademarks of NCR Corporation. - * - * PRE-ALPHA - * - * For more information, please consult - * - * NCR 53C700/53C700-66 - * SCSI I/O Processor - * Data Manual - * - * NCR 53C810 - * PCI-SCSI I/O Processor - * Data Manual - * - * NCR Microelectronics - * 1635 Aeroplaza Drive - * Colorado Springs, CO 80916 - * +1 (719) 578-3400 - * - * Toll free literature number - * +1 (800) 334-5454 - * - */ - -#ifndef NCR53c710_H -#define NCR53c710_H - -#ifndef HOSTS_C - -/* SCSI control 0 rw, default = 0xc0 */ -#define SCNTL0_REG 0x00 -#define SCNTL0_ARB1 0x80 /* 0 0 = simple arbitration */ -#define SCNTL0_ARB2 0x40 /* 1 1 = full arbitration */ -#define SCNTL0_STRT 0x20 /* Start Sequence */ -#define SCNTL0_WATN 0x10 /* Select with ATN */ -#define SCNTL0_EPC 0x08 /* Enable parity checking */ -/* Bit 2 is reserved on 800 series chips */ -#define SCNTL0_EPG_700 0x04 /* Enable parity generation */ -#define SCNTL0_AAP 0x02 /* ATN/ on parity error */ -#define SCNTL0_TRG 0x01 /* Target mode */ - -/* SCSI control 1 rw, default = 0x00 */ - -#define SCNTL1_REG 0x01 -#define SCNTL1_EXC 0x80 /* Extra Clock Cycle of Data setup */ -#define SCNTL1_ADB 0x40 /* contents of SODL on bus */ -#define SCNTL1_ESR_700 0x20 /* Enable SIOP response to selection - and reselection */ -#define SCNTL1_DHP_800 0x20 /* Disable halt on parity error or ATN - target mode only */ -#define SCNTL1_CON 0x10 /* Connected */ -#define SCNTL1_RST 0x08 /* SCSI RST/ */ -#define SCNTL1_AESP 0x04 /* Force bad parity */ -#define SCNTL1_SND_700 0x02 /* Start SCSI send */ -#define SCNTL1_IARB_800 0x02 /* Immediate Arbitration, start - arbitration immediately after - busfree is detected */ -#define SCNTL1_RCV_700 0x01 /* Start SCSI receive */ -#define SCNTL1_SST_800 0x01 /* Start SCSI transfer */ - -/* SCSI control 2 rw, */ - -#define SCNTL2_REG_800 0x02 -#define SCNTL2_800_SDU 0x80 /* SCSI disconnect unexpected */ - -/* SCSI control 3 rw */ - -#define SCNTL3_REG_800 0x03 -#define SCNTL3_800_SCF_SHIFT 4 -#define SCNTL3_800_SCF_MASK 0x70 -#define SCNTL3_800_SCF2 0x40 /* Synchronous divisor */ -#define SCNTL3_800_SCF1 0x20 /* 0x00 = SCLK/3 */ -#define SCNTL3_800_SCF0 0x10 /* 0x10 = SCLK/1 */ - /* 0x20 = SCLK/1.5 - 0x30 = SCLK/2 - 0x40 = SCLK/3 */ - -#define SCNTL3_800_CCF_SHIFT 0 -#define SCNTL3_800_CCF_MASK 0x07 -#define SCNTL3_800_CCF2 0x04 /* 0x00 50.01 to 66 */ -#define SCNTL3_800_CCF1 0x02 /* 0x01 16.67 to 25 */ -#define SCNTL3_800_CCF0 0x01 /* 0x02 25.01 - 37.5 - 0x03 37.51 - 50 - 0x04 50.01 - 66 */ - -/* - * SCSI destination ID rw - the appropriate bit is set for the selected - * target ID. This is written by the SCSI SCRIPTS processor. - * default = 0x00 - */ -#define SDID_REG_700 0x02 -#define SDID_REG_800 0x06 - -#define GP_REG_800 0x07 /* General purpose IO */ -#define GP_800_IO1 0x02 -#define GP_800_IO2 0x01 - -/* SCSI interrupt enable rw, default = 0x00 */ -#define SIEN_REG_700 0x03 -#define SIEN0_REG_800 0x40 -#define SIEN_MA 0x80 /* Phase mismatch (ini) or ATN (tgt) */ -#define SIEN_FC 0x40 /* Function complete */ -#define SIEN_700_STO 0x20 /* Selection or reselection timeout */ -#define SIEN_800_SEL 0x20 /* Selected */ -#define SIEN_700_SEL 0x10 /* Selected or reselected */ -#define SIEN_800_RESEL 0x10 /* Reselected */ -#define SIEN_SGE 0x08 /* SCSI gross error */ -#define SIEN_UDC 0x04 /* Unexpected disconnect */ -#define SIEN_RST 0x02 /* SCSI RST/ received */ -#define SIEN_PAR 0x01 /* Parity error */ - -/* - * SCSI chip ID rw - * NCR53c700 : - * When arbitrating, the highest bit is used, when reselection or selection - * occurs, the chip responds to all IDs for which a bit is set. - * default = 0x00 - * NCR53c810 : - * Uses bit mapping - */ -#define SCID_REG 0x04 -/* Bit 7 is reserved on 800 series chips */ -#define SCID_800_RRE 0x40 /* Enable response to reselection */ -#define SCID_800_SRE 0x20 /* Enable response to selection */ -/* Bits four and three are reserved on 800 series chips */ -#define SCID_800_ENC_MASK 0x07 /* Encoded SCSI ID */ - -/* SCSI transfer rw, default = 0x00 */ -#define SXFER_REG 0x05 -#define SXFER_DHP 0x80 /* Disable halt on parity */ - -#define SXFER_TP2 0x40 /* Transfer period msb */ -#define SXFER_TP1 0x20 -#define SXFER_TP0 0x10 /* lsb */ -#define SXFER_TP_MASK 0x70 -/* FIXME : SXFER_TP_SHIFT == 5 is right for '8xx chips */ -#define SXFER_TP_SHIFT 5 -#define SXFER_TP_4 0x00 /* Divisors */ -#define SXFER_TP_5 0x10<<1 -#define SXFER_TP_6 0x20<<1 -#define SXFER_TP_7 0x30<<1 -#define SXFER_TP_8 0x40<<1 -#define SXFER_TP_9 0x50<<1 -#define SXFER_TP_10 0x60<<1 -#define SXFER_TP_11 0x70<<1 - -#define SXFER_MO3 0x08 /* Max offset msb */ -#define SXFER_MO2 0x04 -#define SXFER_MO1 0x02 -#define SXFER_MO0 0x01 /* lsb */ -#define SXFER_MO_MASK 0x0f -#define SXFER_MO_SHIFT 0 - -/* - * SCSI output data latch rw - * The contents of this register are driven onto the SCSI bus when - * the Assert Data Bus bit of the SCNTL1 register is set and - * the CD, IO, and MSG bits of the SOCL register match the SCSI phase - */ -#define SODL_REG_700 0x06 -#define SODL_REG_800 0x54 - - -/* - * SCSI output control latch rw, default = 0 - * Note that when the chip is being manually programmed as an initiator, - * the MSG, CD, and IO bits must be set correctly for the phase the target - * is driving the bus in. Otherwise no data transfer will occur due to - * phase mismatch. - */ - -#define SOCL_REG 0x07 -#define SOCL_REQ 0x80 /* REQ */ -#define SOCL_ACK 0x40 /* ACK */ -#define SOCL_BSY 0x20 /* BSY */ -#define SOCL_SEL 0x10 /* SEL */ -#define SOCL_ATN 0x08 /* ATN */ -#define SOCL_MSG 0x04 /* MSG */ -#define SOCL_CD 0x02 /* C/D */ -#define SOCL_IO 0x01 /* I/O */ - -/* - * SCSI first byte received latch ro - * This register contains the first byte received during a block MOVE - * SCSI SCRIPTS instruction, including - * - * Initiator mode Target mode - * Message in Command - * Status Message out - * Data in Data out - * - * It also contains the selecting or reselecting device's ID and our - * ID. - * - * Note that this is the register the various IF conditionals can - * operate on. - */ -#define SFBR_REG 0x08 - -/* - * SCSI input data latch ro - * In initiator mode, data is latched into this register on the rising - * edge of REQ/. In target mode, data is latched on the rising edge of - * ACK/ - */ -#define SIDL_REG_700 0x09 -#define SIDL_REG_800 0x50 - -/* - * SCSI bus data lines ro - * This register reflects the instantaneous status of the SCSI data - * lines. Note that SCNTL0 must be set to disable parity checking, - * otherwise reading this register will latch new parity. - */ -#define SBDL_REG_700 0x0a -#define SBDL_REG_800 0x58 - -#define SSID_REG_800 0x0a -#define SSID_800_VAL 0x80 /* Exactly two bits asserted at sel */ -#define SSID_800_ENCID_MASK 0x07 /* Device which performed operation */ - - -/* - * SCSI bus control lines rw, - * instantaneous readout of control lines - */ -#define SBCL_REG 0x0b -#define SBCL_REQ 0x80 /* REQ ro */ -#define SBCL_ACK 0x40 /* ACK ro */ -#define SBCL_BSY 0x20 /* BSY ro */ -#define SBCL_SEL 0x10 /* SEL ro */ -#define SBCL_ATN 0x08 /* ATN ro */ -#define SBCL_MSG 0x04 /* MSG ro */ -#define SBCL_CD 0x02 /* C/D ro */ -#define SBCL_IO 0x01 /* I/O ro */ -#define SBCL_PHASE_CMDOUT SBCL_CD -#define SBCL_PHASE_DATAIN SBCL_IO -#define SBCL_PHASE_DATAOUT 0 -#define SBCL_PHASE_MSGIN (SBCL_CD|SBCL_IO|SBCL_MSG) -#define SBCL_PHASE_MSGOUT (SBCL_CD|SBCL_MSG) -#define SBCL_PHASE_STATIN (SBCL_CD|SBCL_IO) -#define SBCL_PHASE_MASK (SBCL_CD|SBCL_IO|SBCL_MSG) -/* - * Synchronous SCSI Clock Control bits - * 0 - set by DCNTL - * 1 - SCLK / 1.0 - * 2 - SCLK / 1.5 - * 3 - SCLK / 2.0 - */ -#define SBCL_SSCF1 0x02 /* wo, -66 only */ -#define SBCL_SSCF0 0x01 /* wo, -66 only */ -#define SBCL_SSCF_MASK 0x03 - -/* - * XXX note : when reading the DSTAT and STAT registers to clear interrupts, - * insure that 10 clocks elapse between the two - */ -/* DMA status ro */ -#define DSTAT_REG 0x0c -#define DSTAT_DFE 0x80 /* DMA FIFO empty */ -#define DSTAT_800_MDPE 0x40 /* Master Data Parity Error */ -#define DSTAT_800_BF 0x20 /* Bus Fault */ -#define DSTAT_ABRT 0x10 /* Aborted - set on error */ -#define DSTAT_SSI 0x08 /* SCRIPTS single step interrupt */ -#define DSTAT_SIR 0x04 /* SCRIPTS interrupt received - - set when INT instruction is - executed */ -#define DSTAT_WTD 0x02 /* Watchdog timeout detected */ -#define DSTAT_OPC 0x01 /* Illegal instruction */ -#define DSTAT_800_IID 0x01 /* Same thing, different name */ - - -/* NCR53c800 moves this stuff into SIST0 */ -#define SSTAT0_REG 0x0d /* SCSI status 0 ro */ -#define SIST0_REG_800 0x42 -#define SSTAT0_MA 0x80 /* ini : phase mismatch, - * tgt : ATN/ asserted - */ -#define SSTAT0_CMP 0x40 /* function complete */ -#define SSTAT0_700_STO 0x20 /* Selection or reselection timeout */ -#define SIST0_800_SEL 0x20 /* Selected */ -#define SSTAT0_700_SEL 0x10 /* Selected or reselected */ -#define SIST0_800_RSL 0x10 /* Reselected */ -#define SSTAT0_SGE 0x08 /* SCSI gross error */ -#define SSTAT0_UDC 0x04 /* Unexpected disconnect */ -#define SSTAT0_RST 0x02 /* SCSI RST/ received */ -#define SSTAT0_PAR 0x01 /* Parity error */ - -/* And uses SSTAT0 for what was SSTAT1 */ - -#define SSTAT1_REG 0x0e /* SCSI status 1 ro */ -#define SSTAT1_ILF 0x80 /* SIDL full */ -#define SSTAT1_ORF 0x40 /* SODR full */ -#define SSTAT1_OLF 0x20 /* SODL full */ -#define SSTAT1_AIP 0x10 /* Arbitration in progress */ -#define SSTAT1_LOA 0x08 /* Lost arbitration */ -#define SSTAT1_WOA 0x04 /* Won arbitration */ -#define SSTAT1_RST 0x02 /* Instant readout of RST/ */ -#define SSTAT1_SDP 0x01 /* Instant readout of SDP/ */ - -#define SSTAT2_REG 0x0f /* SCSI status 2 ro */ -#define SSTAT2_FF3 0x80 /* number of bytes in synchronous */ -#define SSTAT2_FF2 0x40 /* data FIFO */ -#define SSTAT2_FF1 0x20 -#define SSTAT2_FF0 0x10 -#define SSTAT2_FF_MASK 0xf0 -#define SSTAT2_FF_SHIFT 4 - -/* - * Latched signals, latched on the leading edge of REQ/ for initiators, - * ACK/ for targets. - */ -#define SSTAT2_SDP 0x08 /* SDP */ -#define SSTAT2_MSG 0x04 /* MSG */ -#define SSTAT2_CD 0x02 /* C/D */ -#define SSTAT2_IO 0x01 /* I/O */ -#define SSTAT2_PHASE_CMDOUT SSTAT2_CD -#define SSTAT2_PHASE_DATAIN SSTAT2_IO -#define SSTAT2_PHASE_DATAOUT 0 -#define SSTAT2_PHASE_MSGIN (SSTAT2_CD|SSTAT2_IO|SSTAT2_MSG) -#define SSTAT2_PHASE_MSGOUT (SSTAT2_CD|SSTAT2_MSG) -#define SSTAT2_PHASE_STATIN (SSTAT2_CD|SSTAT2_IO) -#define SSTAT2_PHASE_MASK (SSTAT2_CD|SSTAT2_IO|SSTAT2_MSG) - - -/* NCR53c700-66 only */ -#define SCRATCHA_REG_00 0x10 /* through 0x13 Scratch A rw */ -/* NCR53c710 and higher */ -#define DSA_REG 0x10 /* DATA structure address */ - -#define CTEST0_REG_700 0x14 /* Chip test 0 ro */ -#define CTEST0_REG_800 0x18 /* Chip test 0 rw, general purpose */ -/* 0x80 - 0x04 are reserved */ -#define CTEST0_700_RTRG 0x02 /* Real target mode */ -#define CTEST0_700_DDIR 0x01 /* Data direction, 1 = - * SCSI bus to host, 0 = - * host to SCSI. - */ - -#define CTEST1_REG_700 0x15 /* Chip test 1 ro */ -#define CTEST1_REG_800 0x19 /* Chip test 1 ro */ -#define CTEST1_FMT3 0x80 /* Identify which byte lanes are empty */ -#define CTEST1_FMT2 0x40 /* in the DMA FIFO */ -#define CTEST1_FMT1 0x20 -#define CTEST1_FMT0 0x10 - -#define CTEST1_FFL3 0x08 /* Identify which bytes lanes are full */ -#define CTEST1_FFL2 0x04 /* in the DMA FIFO */ -#define CTEST1_FFL1 0x02 -#define CTEST1_FFL0 0x01 - -#define CTEST2_REG_700 0x16 /* Chip test 2 ro */ -#define CTEST2_REG_800 0x1a /* Chip test 2 ro */ - -#define CTEST2_800_DDIR 0x80 /* 1 = SCSI->host */ -#define CTEST2_800_SIGP 0x40 /* A copy of SIGP in ISTAT. - Reading this register clears */ -#define CTEST2_800_CIO 0x20 /* Configured as IO */. -#define CTEST2_800_CM 0x10 /* Configured as memory */ - -/* 0x80 - 0x40 are reserved on 700 series chips */ -#define CTEST2_700_SOFF 0x20 /* SCSI Offset Compare, - * As an initiator, this bit is - * one when the synchronous offset - * is zero, as a target this bit - * is one when the synchronous - * offset is at the maximum - * defined in SXFER - */ -#define CTEST2_700_SFP 0x10 /* SCSI FIFO parity bit, - * reading CTEST3 unloads a byte - * from the FIFO and sets this - */ -#define CTEST2_700_DFP 0x08 /* DMA FIFO parity bit, - * reading CTEST6 unloads a byte - * from the FIFO and sets this - */ -#define CTEST2_TEOP 0x04 /* SCSI true end of process, - * indicates a totally finished - * transfer - */ -#define CTEST2_DREQ 0x02 /* Data request signal */ -/* 0x01 is reserved on 700 series chips */ -#define CTEST2_800_DACK 0x01 - -/* - * Chip test 3 ro - * Unloads the bottom byte of the eight deep SCSI synchronous FIFO, - * check SSTAT2 FIFO full bits to determine size. Note that a GROSS - * error results if a read is attempted on this register. Also note - * that 16 and 32 bit reads of this register will cause corruption. - */ -#define CTEST3_REG_700 0x17 -/* Chip test 3 rw */ -#define CTEST3_REG_800 0x1b -#define CTEST3_800_V3 0x80 /* Chip revision */ -#define CTEST3_800_V2 0x40 -#define CTEST3_800_V1 0x20 -#define CTEST3_800_V0 0x10 -#define CTEST3_800_FLF 0x08 /* Flush DMA FIFO */ -#define CTEST3_800_CLF 0x04 /* Clear DMA FIFO */ -#define CTEST3_800_FM 0x02 /* Fetch mode pin */ -/* bit 0 is reserved on 800 series chips */ - -#define CTEST4_REG_700 0x18 /* Chip test 4 rw */ -#define CTEST4_REG_800 0x21 /* Chip test 4 rw */ -/* 0x80 is reserved on 700 series chips */ -#define CTEST4_800_BDIS 0x80 /* Burst mode disable */ -#define CTEST4_ZMOD 0x40 /* High impedance mode */ -#define CTEST4_SZM 0x20 /* SCSI bus high impedance */ -#define CTEST4_700_SLBE 0x10 /* SCSI loopback enabled */ -#define CTEST4_800_SRTM 0x10 /* Shadow Register Test Mode */ -#define CTEST4_700_SFWR 0x08 /* SCSI FIFO write enable, - * redirects writes from SODL - * to the SCSI FIFO. - */ -#define CTEST4_800_MPEE 0x08 /* Enable parity checking - during master cycles on PCI - bus */ - -/* - * These bits send the contents of the CTEST6 register to the appropriate - * byte lane of the 32 bit DMA FIFO. Normal operation is zero, otherwise - * the high bit means the low two bits select the byte lane. - */ -#define CTEST4_FBL2 0x04 -#define CTEST4_FBL1 0x02 -#define CTEST4_FBL0 0x01 -#define CTEST4_FBL_MASK 0x07 -#define CTEST4_FBL_0 0x04 /* Select DMA FIFO byte lane 0 */ -#define CTEST4_FBL_1 0x05 /* Select DMA FIFO byte lane 1 */ -#define CTEST4_FBL_2 0x06 /* Select DMA FIFO byte lane 2 */ -#define CTEST4_FBL_3 0x07 /* Select DMA FIFO byte lane 3 */ -#define CTEST4_800_SAVE (CTEST4_800_BDIS) - - -#define CTEST5_REG_700 0x19 /* Chip test 5 rw */ -#define CTEST5_REG_800 0x22 /* Chip test 5 rw */ -/* - * Clock Address Incrementor. When set, it increments the - * DNAD register to the next bus size boundary. It automatically - * resets itself when the operation is complete. - */ -#define CTEST5_ADCK 0x80 -/* - * Clock Byte Counter. When set, it decrements the DBC register to - * the next bus size boundary. - */ -#define CTEST5_BBCK 0x40 -/* - * Reset SCSI Offset. Setting this bit to 1 clears the current offset - * pointer in the SCSI synchronous offset counter (SSTAT). This bit - * is set to 1 if a SCSI Gross Error Condition occurs. The offset should - * be cleared when a synchronous transfer fails. When written, it is - * automatically cleared after the SCSI synchronous offset counter is - * reset. - */ -/* Bit 5 is reserved on 800 series chips */ -#define CTEST5_700_ROFF 0x20 -/* - * Master Control for Set or Reset pulses. When 1, causes the low - * four bits of register to set when set, 0 causes the low bits to - * clear when set. - */ -#define CTEST5_MASR 0x10 -#define CTEST5_DDIR 0x08 /* DMA direction */ -/* - * Bits 2-0 are reserved on 800 series chips - */ -#define CTEST5_700_EOP 0x04 /* End of process */ -#define CTEST5_700_DREQ 0x02 /* Data request */ -#define CTEST5_700_DACK 0x01 /* Data acknowledge */ - -/* - * Chip test 6 rw - writing to this register writes to the byte - * lane in the DMA FIFO as determined by the FBL bits in the CTEST4 - * register. - */ -#define CTEST6_REG_700 0x1a -#define CTEST6_REG_800 0x23 - -#define CTEST7_REG 0x1b /* Chip test 7 rw */ -/* 0x80 - 0x40 are reserved on NCR53c700 and NCR53c700-66 chips */ -#define CTEST7_10_CDIS 0x80 /* Cache burst disable */ -#define CTEST7_10_SC1 0x40 /* Snoop control bits */ -#define CTEST7_10_SC0 0x20 -#define CTEST7_10_SC_MASK 0x60 -/* 0x20 is reserved on the NCR53c700 */ -#define CTEST7_0060_FM 0x20 /* Fetch mode */ -#define CTEST7_STD 0x10 /* Selection timeout disable */ -#define CTEST7_DFP 0x08 /* DMA FIFO parity bit for CTEST6 */ -#define CTEST7_EVP 0x04 /* 1 = host bus even parity, 0 = odd */ -#define CTEST7_10_TT1 0x02 /* Transfer type */ -#define CTEST7_00_DC 0x02 /* Set to drive DC low during instruction - fetch */ -#define CTEST7_DIFF 0x01 /* Differential mode */ - -#define CTEST7_SAVE ( CTEST7_EVP | CTEST7_DIFF ) - - -#define TEMP_REG 0x1c /* through 0x1f Temporary stack rw */ - -#define DFIFO_REG 0x20 /* DMA FIFO rw */ -/* - * 0x80 is reserved on the NCR53c710, the CLF and FLF bits have been - * moved into the CTEST8 register. - */ -#define DFIFO_00_FLF 0x80 /* Flush DMA FIFO to memory */ -#define DFIFO_00_CLF 0x40 /* Clear DMA and SCSI FIFOs */ -#define DFIFO_BO6 0x40 -#define DFIFO_BO5 0x20 -#define DFIFO_BO4 0x10 -#define DFIFO_BO3 0x08 -#define DFIFO_BO2 0x04 -#define DFIFO_BO1 0x02 -#define DFIFO_BO0 0x01 -#define DFIFO_10_BO_MASK 0x7f /* 7 bit counter */ -#define DFIFO_00_BO_MASK 0x3f /* 6 bit counter */ - -/* - * Interrupt status rw - * Note that this is the only register which can be read while SCSI - * SCRIPTS are being executed. - */ -#define ISTAT_REG_700 0x21 -#define ISTAT_REG_800 0x14 -#define ISTAT_ABRT 0x80 /* Software abort, write - *1 to abort, wait for interrupt. */ -/* 0x40 and 0x20 are reserved on NCR53c700 and NCR53c700-66 chips */ -#define ISTAT_10_SRST 0x40 /* software reset */ -#define ISTAT_10_SIGP 0x20 /* signal script */ -/* 0x10 is reserved on NCR53c700 series chips */ -#define ISTAT_800_SEM 0x10 /* semaphore */ -#define ISTAT_CON 0x08 /* 1 when connected */ -#define ISTAT_800_INTF 0x04 /* Interrupt on the fly */ -#define ISTAT_700_PRE 0x04 /* Pointer register empty. - * Set to 1 when DSPS and DSP - * registers are empty in pipeline - * mode, always set otherwise. - */ -#define ISTAT_SIP 0x02 /* SCSI interrupt pending from - * SCSI portion of SIOP see - * SSTAT0 - */ -#define ISTAT_DIP 0x01 /* DMA interrupt pending - * see DSTAT - */ - -/* NCR53c700-66 and NCR53c710 only */ -#define CTEST8_REG 0x22 /* Chip test 8 rw */ -#define CTEST8_0066_EAS 0x80 /* Enable alternate SCSI clock, - * ie read from SCLK/ rather than CLK/ - */ -#define CTEST8_0066_EFM 0x40 /* Enable fetch and master outputs */ -#define CTEST8_0066_GRP 0x20 /* Generate Receive Parity for - * pass through. This insures that - * bad parity won't reach the host - * bus. - */ -#define CTEST8_0066_TE 0x10 /* TolerANT enable. Enable - * active negation, should only - * be used for slow SCSI - * non-differential. - */ -#define CTEST8_0066_HSC 0x08 /* Halt SCSI clock */ -#define CTEST8_0066_SRA 0x04 /* Shorten REQ/ACK filtering, - * must be set for fast SCSI-II - * speeds. - */ -#define CTEST8_0066_DAS 0x02 /* Disable automatic target/initiator - * switching. - */ -#define CTEST8_0066_LDE 0x01 /* Last disconnect enable. - * The status of pending - * disconnect is maintained by - * the core, eliminating - * the possibility of missing a - * selection or reselection - * while waiting to fetch a - * WAIT DISCONNECT opcode. - */ - -#define CTEST8_10_V3 0x80 /* Chip revision */ -#define CTEST8_10_V2 0x40 -#define CTEST8_10_V1 0x20 -#define CTEST8_10_V0 0x10 -#define CTEST8_10_V_MASK 0xf0 -#define CTEST8_10_FLF 0x08 /* Flush FIFOs */ -#define CTEST8_10_CLF 0x04 /* Clear FIFOs */ -#define CTEST8_10_FM 0x02 /* Fetch pin mode */ -#define CTEST8_10_SM 0x01 /* Snoop pin mode */ - - -/* - * The CTEST9 register may be used to differentiate between a - * NCR53c700 and a NCR53c710. - * - * Write 0xff to this register. - * Read it. - * If the contents are 0xff, it is a NCR53c700 - * If the contents are 0x00, it is a NCR53c700-66 first revision - * If the contents are some other value, it is some other NCR53c700-66 - */ -#define CTEST9_REG_00 0x23 /* Chip test 9 ro */ -#define LCRC_REG_10 0x23 - -/* - * 0x24 through 0x27 are the DMA byte counter register. Instructions - * write their high 8 bits into the DCMD register, the low 24 bits into - * the DBC register. - * - * Function is dependent on the command type being executed. - */ - - -#define DBC_REG 0x24 -/* - * For Block Move Instructions, DBC is a 24 bit quantity representing - * the number of bytes to transfer. - * For Transfer Control Instructions, DBC is bit fielded as follows : - */ -/* Bits 20 - 23 should be clear */ -#define DBC_TCI_TRUE (1 << 19) /* Jump when true */ -#define DBC_TCI_COMPARE_DATA (1 << 18) /* Compare data */ -#define DBC_TCI_COMPARE_PHASE (1 << 17) /* Compare phase with DCMD field */ -#define DBC_TCI_WAIT_FOR_VALID (1 << 16) /* Wait for REQ */ -/* Bits 8 - 15 are reserved on some implementations ? */ -#define DBC_TCI_MASK_MASK 0xff00 /* Mask for data compare */ -#define DBC_TCI_MASK_SHIFT 8 -#define DBC_TCI_DATA_MASK 0xff /* Data to be compared */ -#define DBC_TCI_DATA_SHIFT 0 - -#define DBC_RWRI_IMMEDIATE_MASK 0xff00 /* Immediate data */ -#define DBC_RWRI_IMMEDIATE_SHIFT 8 /* Amount to shift */ -#define DBC_RWRI_ADDRESS_MASK 0x3f0000 /* Register address */ -#define DBC_RWRI_ADDRESS_SHIFT 16 - - -/* - * DMA command r/w - */ -#define DCMD_REG 0x27 -#define DCMD_TYPE_MASK 0xc0 /* Masks off type */ -#define DCMD_TYPE_BMI 0x00 /* Indicates a Block Move instruction */ -#define DCMD_BMI_IO 0x01 /* I/O, CD, and MSG bits selecting */ -#define DCMD_BMI_CD 0x02 /* the phase for the block MOVE */ -#define DCMD_BMI_MSG 0x04 /* instruction */ - -#define DCMD_BMI_OP_MASK 0x18 /* mask for opcode */ -#define DCMD_BMI_OP_MOVE_T 0x00 /* MOVE */ -#define DCMD_BMI_OP_MOVE_I 0x08 /* MOVE Initiator */ - -#define DCMD_BMI_INDIRECT 0x20 /* Indirect addressing */ - -#define DCMD_TYPE_TCI 0x80 /* Indicates a Transfer Control - instruction */ -#define DCMD_TCI_IO 0x01 /* I/O, CD, and MSG bits selecting */ -#define DCMD_TCI_CD 0x02 /* the phase for the block MOVE */ -#define DCMD_TCI_MSG 0x04 /* instruction */ -#define DCMD_TCI_OP_MASK 0x38 /* mask for opcode */ -#define DCMD_TCI_OP_JUMP 0x00 /* JUMP */ -#define DCMD_TCI_OP_CALL 0x08 /* CALL */ -#define DCMD_TCI_OP_RETURN 0x10 /* RETURN */ -#define DCMD_TCI_OP_INT 0x18 /* INT */ - -#define DCMD_TYPE_RWRI 0x40 /* Indicates I/O or register Read/Write - instruction */ -#define DCMD_RWRI_OPC_MASK 0x38 /* Opcode mask */ -#define DCMD_RWRI_OPC_WRITE 0x28 /* Write SFBR to register */ -#define DCMD_RWRI_OPC_READ 0x30 /* Read register to SFBR */ -#define DCMD_RWRI_OPC_MODIFY 0x38 /* Modify in place */ - -#define DCMD_RWRI_OP_MASK 0x07 -#define DCMD_RWRI_OP_MOVE 0x00 -#define DCMD_RWRI_OP_SHL 0x01 -#define DCMD_RWRI_OP_OR 0x02 -#define DCMD_RWRI_OP_XOR 0x03 -#define DCMD_RWRI_OP_AND 0x04 -#define DCMD_RWRI_OP_SHR 0x05 -#define DCMD_RWRI_OP_ADD 0x06 -#define DCMD_RWRI_OP_ADDC 0x07 - -#define DCMD_TYPE_MMI 0xc0 /* Indicates a Memory Move instruction - (three words) */ - - -#define DNAD_REG 0x28 /* through 0x2b DMA next address for - data */ -#define DSP_REG 0x2c /* through 0x2f DMA SCRIPTS pointer rw */ -#define DSPS_REG 0x30 /* through 0x33 DMA SCRIPTS pointer - save rw */ -#define DMODE_REG_00 0x34 /* DMA mode rw */ -#define DMODE_00_BL1 0x80 /* Burst length bits */ -#define DMODE_00_BL0 0x40 -#define DMODE_BL_MASK 0xc0 -/* Burst lengths (800) */ -#define DMODE_BL_2 0x00 /* 2 transfer */ -#define DMODE_BL_4 0x40 /* 4 transfers */ -#define DMODE_BL_8 0x80 /* 8 transfers */ -#define DMODE_BL_16 0xc0 /* 16 transfers */ - -#define DMODE_10_BL_1 0x00 /* 1 transfer */ -#define DMODE_10_BL_2 0x40 /* 2 transfers */ -#define DMODE_10_BL_4 0x80 /* 4 transfers */ -#define DMODE_10_BL_8 0xc0 /* 8 transfers */ -#define DMODE_10_FC2 0x20 /* Driven to FC2 pin */ -#define DMODE_10_FC1 0x10 /* Driven to FC1 pin */ -#define DMODE_710_PD 0x08 /* Program/data on FC0 pin */ -#define DMODE_710_UO 0x02 /* User prog. output */ - -#define DMODE_700_BW16 0x20 /* Host buswidth = 16 */ -#define DMODE_700_286 0x10 /* 286 mode */ -#define DMODE_700_IOM 0x08 /* Transfer to IO port */ -#define DMODE_700_FAM 0x04 /* Fixed address mode */ -#define DMODE_700_PIPE 0x02 /* Pipeline mode disables - * automatic fetch / exec - */ -#define DMODE_MAN 0x01 /* Manual start mode, - * requires a 1 to be written - * to the start DMA bit in the DCNTL - * register to run scripts - */ - -#define DMODE_700_SAVE ( DMODE_00_BL_MASK | DMODE_00_BW16 | DMODE_00_286 ) - -/* NCR53c800 series only */ -#define SCRATCHA_REG_800 0x34 /* through 0x37 Scratch A rw */ -/* NCR53c710 only */ -#define SCRATCHB_REG_10 0x34 /* through 0x37 scratch B rw */ - -#define DMODE_REG_10 0x38 /* DMA mode rw, NCR53c710 and newer */ -#define DMODE_800_SIOM 0x20 /* Source IO = 1 */ -#define DMODE_800_DIOM 0x10 /* Destination IO = 1 */ -#define DMODE_800_ERL 0x08 /* Enable Read Line */ - -/* 35-38 are reserved on 700 and 700-66 series chips */ -#define DIEN_REG 0x39 /* DMA interrupt enable rw */ -/* 0x80, 0x40, and 0x20 are reserved on 700-series chips */ -#define DIEN_800_MDPE 0x40 /* Master data parity error */ -#define DIEN_800_BF 0x20 /* BUS fault */ -#define DIEN_700_BF 0x20 /* BUS fault */ -#define DIEN_ABRT 0x10 /* Enable aborted interrupt */ -#define DIEN_SSI 0x08 /* Enable single step interrupt */ -#define DIEN_SIR 0x04 /* Enable SCRIPTS INT command - * interrupt - */ -/* 0x02 is reserved on 800 series chips */ -#define DIEN_700_WTD 0x02 /* Enable watchdog timeout interrupt */ -#define DIEN_700_OPC 0x01 /* Enable illegal instruction - * interrupt - */ -#define DIEN_800_IID 0x01 /* Same meaning, different name */ - -/* - * DMA watchdog timer rw - * set in 16 CLK input periods. - */ -#define DWT_REG 0x3a - -/* DMA control rw */ -#define DCNTL_REG 0x3b -#define DCNTL_700_CF1 0x80 /* Clock divisor bits */ -#define DCNTL_700_CF0 0x40 -#define DCNTL_700_CF_MASK 0xc0 -/* Clock divisors Divisor SCLK range (MHZ) */ -#define DCNTL_700_CF_2 0x00 /* 2.0 37.51-50.00 */ -#define DCNTL_700_CF_1_5 0x40 /* 1.5 25.01-37.50 */ -#define DCNTL_700_CF_1 0x80 /* 1.0 16.67-25.00 */ -#define DCNTL_700_CF_3 0xc0 /* 3.0 50.01-66.67 (53c700-66) */ - -#define DCNTL_700_S16 0x20 /* Load scripts 16 bits at a time */ -#define DCNTL_SSM 0x10 /* Single step mode */ -#define DCNTL_700_LLM 0x08 /* Low level mode, can only be set - * after selection */ -#define DCNTL_800_IRQM 0x08 /* Totem pole IRQ pin */ -#define DCNTL_STD 0x04 /* Start DMA / SCRIPTS */ -/* 0x02 is reserved */ -#define DCNTL_00_RST 0x01 /* Software reset, resets everything - * but 286 mode bit in DMODE. On the - * NCR53c710, this bit moved to CTEST8 - */ -#define DCNTL_10_COM 0x01 /* 700 software compatibility mode */ -#define DCNTL_10_EA 0x20 /* Enable Ack - needed for MVME16x */ - -#define DCNTL_700_SAVE ( DCNTL_CF_MASK | DCNTL_S16) - - -/* NCR53c700-66 only */ -#define SCRATCHB_REG_00 0x3c /* through 0x3f scratch b rw */ -#define SCRATCHB_REG_800 0x5c /* through 0x5f scratch b rw */ -/* NCR53c710 only */ -#define ADDER_REG_10 0x3c /* Adder, NCR53c710 only */ - -#define SIEN1_REG_800 0x41 -#define SIEN1_800_STO 0x04 /* selection/reselection timeout */ -#define SIEN1_800_GEN 0x02 /* general purpose timer */ -#define SIEN1_800_HTH 0x01 /* handshake to handshake */ - -#define SIST1_REG_800 0x43 -#define SIST1_800_STO 0x04 /* selection/reselection timeout */ -#define SIST1_800_GEN 0x02 /* general purpose timer */ -#define SIST1_800_HTH 0x01 /* handshake to handshake */ - -#define SLPAR_REG_800 0x44 /* Parity */ - -#define MACNTL_REG_800 0x46 /* Memory access control */ -#define MACNTL_800_TYP3 0x80 -#define MACNTL_800_TYP2 0x40 -#define MACNTL_800_TYP1 0x20 -#define MACNTL_800_TYP0 0x10 -#define MACNTL_800_DWR 0x08 -#define MACNTL_800_DRD 0x04 -#define MACNTL_800_PSCPT 0x02 -#define MACNTL_800_SCPTS 0x01 - -#define GPCNTL_REG_800 0x47 /* General Purpose Pin Control */ - -/* Timeouts are expressed such that 0=off, 1=100us, doubling after that */ -#define STIME0_REG_800 0x48 /* SCSI Timer Register 0 */ -#define STIME0_800_HTH_MASK 0xf0 /* Handshake to Handshake timeout */ -#define STIME0_800_HTH_SHIFT 4 -#define STIME0_800_SEL_MASK 0x0f /* Selection timeout */ -#define STIME0_800_SEL_SHIFT 0 - -#define STIME1_REG_800 0x49 -#define STIME1_800_GEN_MASK 0x0f /* General purpose timer */ - -#define RESPID_REG_800 0x4a /* Response ID, bit fielded. 8 - bits on narrow chips, 16 on WIDE */ - -#define STEST0_REG_800 0x4c -#define STEST0_800_SLT 0x08 /* Selection response logic test */ -#define STEST0_800_ART 0x04 /* Arbitration priority encoder test */ -#define STEST0_800_SOZ 0x02 /* Synchronous offset zero */ -#define STEST0_800_SOM 0x01 /* Synchronous offset maximum */ - -#define STEST1_REG_800 0x4d -#define STEST1_800_SCLK 0x80 /* Disable SCSI clock */ - -#define STEST2_REG_800 0x4e -#define STEST2_800_SCE 0x80 /* Enable SOCL/SODL */ -#define STEST2_800_ROF 0x40 /* Reset SCSI sync offset */ -#define STEST2_800_SLB 0x10 /* Enable SCSI loopback mode */ -#define STEST2_800_SZM 0x08 /* SCSI high impedance mode */ -#define STEST2_800_EXT 0x02 /* Extend REQ/ACK filter 30 to 60ns */ -#define STEST2_800_LOW 0x01 /* SCSI low level mode */ - -#define STEST3_REG_800 0x4f -#define STEST3_800_TE 0x80 /* Enable active negation */ -#define STEST3_800_STR 0x40 /* SCSI FIFO test read */ -#define STEST3_800_HSC 0x20 /* Halt SCSI clock */ -#define STEST3_800_DSI 0x10 /* Disable single initiator response */ -#define STEST3_800_TTM 0x04 /* Time test mode */ -#define STEST3_800_CSF 0x02 /* Clear SCSI FIFO */ -#define STEST3_800_STW 0x01 /* SCSI FIFO test write */ - -#define OPTION_PARITY 0x1 /* Enable parity checking */ -#define OPTION_TAGGED_QUEUE 0x2 /* Enable SCSI-II tagged queuing */ -#define OPTION_700 0x8 /* Always run NCR53c700 scripts */ -#define OPTION_INTFLY 0x10 /* Use INTFLY interrupts */ -#define OPTION_DEBUG_INTR 0x20 /* Debug interrupts */ -#define OPTION_DEBUG_INIT_ONLY 0x40 /* Run initialization code and - simple test code, return - DID_NO_CONNECT if any SCSI - commands are attempted. */ -#define OPTION_DEBUG_READ_ONLY 0x80 /* Return DID_ERROR if any - SCSI write is attempted */ -#define OPTION_DEBUG_TRACE 0x100 /* Animated trace mode, print - each address and instruction - executed to debug buffer. */ -#define OPTION_DEBUG_SINGLE 0x200 /* stop after executing one - instruction */ -#define OPTION_SYNCHRONOUS 0x400 /* Enable sync SCSI. */ -#define OPTION_MEMORY_MAPPED 0x800 /* NCR registers have valid - memory mapping */ -#define OPTION_IO_MAPPED 0x1000 /* NCR registers have valid - I/O mapping */ -#define OPTION_DEBUG_PROBE_ONLY 0x2000 /* Probe only, don't even init */ -#define OPTION_DEBUG_TESTS_ONLY 0x4000 /* Probe, init, run selected tests */ -#define OPTION_DEBUG_TEST0 0x08000 /* Run test 0 */ -#define OPTION_DEBUG_TEST1 0x10000 /* Run test 1 */ -#define OPTION_DEBUG_TEST2 0x20000 /* Run test 2 */ -#define OPTION_DEBUG_DUMP 0x40000 /* Dump commands */ -#define OPTION_DEBUG_TARGET_LIMIT 0x80000 /* Only talk to target+luns specified */ -#define OPTION_DEBUG_NCOMMANDS_LIMIT 0x100000 /* Limit the number of commands */ -#define OPTION_DEBUG_SCRIPT 0x200000 /* Print when checkpoints are passed */ -#define OPTION_DEBUG_FIXUP 0x400000 /* print fixup values */ -#define OPTION_DEBUG_DSA 0x800000 -#define OPTION_DEBUG_CORRUPTION 0x1000000 /* Detect script corruption */ -#define OPTION_DEBUG_SDTR 0x2000000 /* Debug SDTR problem */ -#define OPTION_DEBUG_MISMATCH 0x4000000 /* Debug phase mismatches */ -#define OPTION_DISCONNECT 0x8000000 /* Allow disconnect */ -#define OPTION_DEBUG_DISCONNECT 0x10000000 -#define OPTION_ALWAYS_SYNCHRONOUS 0x20000000 /* Negotiate sync. transfers - on power up */ -#define OPTION_DEBUG_QUEUES 0x80000000 -#define OPTION_DEBUG_ALLOCATION 0x100000000LL -#define OPTION_DEBUG_SYNCHRONOUS 0x200000000LL /* Sanity check SXFER and - SCNTL3 registers */ -#define OPTION_NO_ASYNC 0x400000000LL /* Don't automagically send - SDTR for async transfers when - we haven't been told to do - a synchronous transfer. */ -#define OPTION_NO_PRINT_RACE 0x800000000LL /* Don't print message when - the reselect/WAIT DISCONNECT - race condition hits */ -#if !defined(PERM_OPTIONS) -#define PERM_OPTIONS 0 -#endif - -/* - * Some data which is accessed by the NCR chip must be 4-byte aligned. - * For some hosts the default is less than that (eg. 68K uses 2-byte). - * Alignment has only been forced where it is important; also if one - * 32 bit structure field is aligned then it is assumed that following - * 32 bit fields are also aligned. Take care when adding fields - * which are other than 32 bit. - */ - -struct NCR53c7x0_synchronous { - u32 select_indirect /* Value used for indirect selection */ - __attribute__ ((aligned (4))); - u32 sscf_710; /* Used to set SSCF bits for 710 */ - u32 script[8]; /* Size ?? Script used when target is - reselected */ - unsigned char synchronous_want[5]; /* Per target desired SDTR */ -/* - * Set_synchronous programs these, select_indirect and current settings after - * int_debug_should show a match. - */ - unsigned char sxfer_sanity, scntl3_sanity; -}; - -#define CMD_FLAG_SDTR 1 /* Initiating synchronous - transfer negotiation */ -#define CMD_FLAG_WDTR 2 /* Initiating wide transfer - negotiation */ -#define CMD_FLAG_DID_SDTR 4 /* did SDTR */ -#define CMD_FLAG_DID_WDTR 8 /* did WDTR */ - -struct NCR53c7x0_table_indirect { - u32 count; - void *address; -}; - -enum ncr_event { - EVENT_NONE = 0, -/* - * Order is IMPORTANT, since these must correspond to the event interrupts - * in 53c7,8xx.scr - */ - - EVENT_ISSUE_QUEUE = 0x5000000, /* 0 Command was added to issue queue */ - EVENT_START_QUEUE, /* 1 Command moved to start queue */ - EVENT_SELECT, /* 2 Command completed selection */ - EVENT_DISCONNECT, /* 3 Command disconnected */ - EVENT_RESELECT, /* 4 Command reselected */ - EVENT_COMPLETE, /* 5 Command completed */ - EVENT_IDLE, /* 6 */ - EVENT_SELECT_FAILED, /* 7 */ - EVENT_BEFORE_SELECT, /* 8 */ - EVENT_RESELECT_FAILED /* 9 */ -}; - -struct NCR53c7x0_event { - enum ncr_event event; /* What type of event */ - unsigned char target; - unsigned char lun; - struct timeval time; - u32 *dsa; /* What's in the DSA register now (virt) */ -/* - * A few things from that SCSI pid so we know what happened after - * the Scsi_Cmnd structure in question may have disappeared. - */ - unsigned long pid; /* The SCSI PID which caused this - event */ - unsigned char cmnd[12]; -}; - -/* - * Things in the NCR53c7x0_cmd structure are split into two parts : - * - * 1. A fixed portion, for things which are not accessed directly by static NCR - * code (ie, are referenced only by the Linux side of the driver, - * or only by dynamically generated code). - * - * 2. The DSA portion, for things which are accessed directly by static NCR - * code. - * - * This is a little ugly, but it - * 1. Avoids conflicts between the NCR code's picture of the structure, and - * Linux code's idea of what it looks like. - * - * 2. Minimizes the pain in the Linux side of the code needed - * to calculate real dsa locations for things, etc. - * - */ - -struct NCR53c7x0_cmd { - void *real; /* Real, unaligned address for - free function */ - void (* free)(void *, int); /* Command to deallocate; NULL - for structures allocated with - scsi_register, etc. */ - Scsi_Cmnd *cmd; /* Associated Scsi_Cmnd - structure, Scsi_Cmnd points - at NCR53c7x0_cmd using - host_scribble structure */ - - int size; /* scsi_malloc'd size of this - structure */ - - int flags; /* CMD_* flags */ - - unsigned char cmnd[12]; /* CDB, copied from Scsi_Cmnd */ - int result; /* Copy to Scsi_Cmnd when done */ - - struct { /* Private non-cached bounce buffer */ - unsigned char buf[256]; - u32 addr; - u32 len; - } bounce; - -/* - * SDTR and WIDE messages are an either/or affair - * in this message, since we will go into message out and send - * _the whole mess_ without dropping out of message out to - * let the target go into message in after sending the first - * message. - */ - - unsigned char select[11]; /* Select message, includes - IDENTIFY - (optional) QUEUE TAG - (optional) SDTR or WDTR - */ - - - volatile struct NCR53c7x0_cmd *next; /* Linux maintained lists (free, - running, eventually finished */ - - - u32 *data_transfer_start; /* Start of data transfer routines */ - u32 *data_transfer_end; /* Address after end of data transfer o - routines */ -/* - * The following three fields were moved from the DSA proper to here - * since only dynamically generated NCR code refers to them, meaning - * we don't need dsa_* absolutes, and it is simpler to let the - * host code refer to them directly. - */ - -/* - * HARD CODED : residual and saved_residual need to agree with the sizes - * used in NCR53c7,8xx.scr. - * - * FIXME: we want to consider the case where we have odd-length - * scatter/gather buffers and a WIDE transfer, in which case - * we'll need to use the CHAIN MOVE instruction. Ick. - */ - u32 residual[6] __attribute__ ((aligned (4))); - /* Residual data transfer which - allows pointer code to work - right. - - [0-1] : Conditional call to - appropriate other transfer - routine. - [2-3] : Residual block transfer - instruction. - [4-5] : Jump to instruction - after splice. - */ - u32 saved_residual[6]; /* Copy of old residual, so we - can get another partial - transfer and still recover - */ - - u32 saved_data_pointer; /* Saved data pointer */ - - u32 dsa_next_addr; /* _Address_ of dsa_next field - in this dsa for RISCy - style constant. */ - - u32 dsa_addr; /* Address of dsa; RISCy style - constant */ - - u32 dsa[0]; /* Variable length (depending - on host type, number of scatter / - gather buffers, etc). */ -}; - -struct NCR53c7x0_break { - u32 *address, old_instruction[2]; - struct NCR53c7x0_break *next; - unsigned char old_size; /* Size of old instruction */ -}; - -/* Indicates that the NCR is not executing code */ -#define STATE_HALTED 0 -/* - * Indicates that the NCR is executing the wait for select / reselect - * script. Only used when running NCR53c700 compatible scripts, only - * state during which an ABORT is _not_ considered an error condition. - */ -#define STATE_WAITING 1 -/* Indicates that the NCR is executing other code. */ -#define STATE_RUNNING 2 -/* - * Indicates that the NCR was being aborted. - */ -#define STATE_ABORTING 3 -/* Indicates that the NCR was successfully aborted. */ -#define STATE_ABORTED 4 -/* Indicates that the NCR has been disabled due to a fatal error */ -#define STATE_DISABLED 5 - -/* - * Where knowledge of SCSI SCRIPT(tm) specified values are needed - * in an interrupt handler, an interrupt handler exists for each - * different SCSI script so we don't have name space problems. - * - * Return values of these handlers are as follows : - */ -#define SPECIFIC_INT_NOTHING 0 /* don't even restart */ -#define SPECIFIC_INT_RESTART 1 /* restart at the next instruction */ -#define SPECIFIC_INT_ABORT 2 /* recoverable error, abort cmd */ -#define SPECIFIC_INT_PANIC 3 /* unrecoverable error, panic */ -#define SPECIFIC_INT_DONE 4 /* normal command completion */ -#define SPECIFIC_INT_BREAK 5 /* break point encountered */ - -struct NCR53c7x0_hostdata { - int size; /* Size of entire Scsi_Host - structure */ - int board; /* set to board type, useful if - we have host specific things, - ie, a general purpose I/O - bit is being used to enable - termination, etc. */ - - int chip; /* set to chip type; 700-66 is - 700-66, rest are last three - digits of part number */ - - char valid_ids[8]; /* Valid SCSI ID's for adapter */ - - u32 *dsp; /* dsp to restart with after - all stacked interrupts are - handled. */ - - unsigned dsp_changed:1; /* Has dsp changed within this - set of stacked interrupts ? */ - - unsigned char dstat; /* Most recent value of dstat */ - unsigned dstat_valid:1; - - unsigned expecting_iid:1; /* Expect IID interrupt */ - unsigned expecting_sto:1; /* Expect STO interrupt */ - - /* - * The code stays cleaner if we use variables with function - * pointers and offsets that are unique for the different - * scripts rather than having a slew of switch(hostdata->chip) - * statements. - * - * It also means that the #defines from the SCSI SCRIPTS(tm) - * don't have to be visible outside of the script-specific - * instructions, preventing name space pollution. - */ - - void (* init_fixup)(struct Scsi_Host *host); - void (* init_save_regs)(struct Scsi_Host *host); - void (* dsa_fixup)(struct NCR53c7x0_cmd *cmd); - void (* soft_reset)(struct Scsi_Host *host); - int (* run_tests)(struct Scsi_Host *host); - - /* - * Called when DSTAT_SIR is set, indicating an interrupt generated - * by the INT instruction, where values are unique for each SCSI - * script. Should return one of the SPEC_* values. - */ - - int (* dstat_sir_intr)(struct Scsi_Host *host, struct NCR53c7x0_cmd *cmd); - - int dsa_len; /* Size of DSA structure */ - - /* - * Location of DSA fields for the SCSI SCRIPT corresponding to this - * chip. - */ - - s32 dsa_start; - s32 dsa_end; - s32 dsa_next; - s32 dsa_prev; - s32 dsa_cmnd; - s32 dsa_select; - s32 dsa_msgout; - s32 dsa_cmdout; - s32 dsa_dataout; - s32 dsa_datain; - s32 dsa_msgin; - s32 dsa_msgout_other; - s32 dsa_write_sync; - s32 dsa_write_resume; - s32 dsa_check_reselect; - s32 dsa_status; - s32 dsa_saved_pointer; - s32 dsa_jump_dest; - - /* - * Important entry points that generic fixup code needs - * to know about, fixed up. - */ - - s32 E_accept_message; - s32 E_command_complete; - s32 E_data_transfer; - s32 E_dsa_code_template; - s32 E_dsa_code_template_end; - s32 E_end_data_transfer; - s32 E_msg_in; - s32 E_initiator_abort; - s32 E_other_transfer; - s32 E_other_in; - s32 E_other_out; - s32 E_target_abort; - s32 E_debug_break; - s32 E_reject_message; - s32 E_respond_message; - s32 E_select; - s32 E_select_msgout; - s32 E_test_0; - s32 E_test_1; - s32 E_test_2; - s32 E_test_3; - s32 E_dsa_zero; - s32 E_cmdout_cmdout; - s32 E_wait_reselect; - s32 E_dsa_code_begin; - - long long options; /* Bitfielded set of options enabled */ - volatile u32 test_completed; /* Test completed */ - int test_running; /* Test currently running */ - s32 test_source - __attribute__ ((aligned (4))); - volatile s32 test_dest; - - volatile int state; /* state of driver, only used for - OPTION_700 */ - - unsigned char dmode; /* - * set to the address of the DMODE - * register for this chip. - */ - unsigned char istat; /* - * set to the address of the ISTAT - * register for this chip. - */ - - int scsi_clock; /* - * SCSI clock in HZ. 0 may be used - * for unknown, although this will - * disable synchronous negotiation. - */ - - volatile int intrs; /* Number of interrupts */ - volatile int resets; /* Number of SCSI resets */ - unsigned char saved_dmode; - unsigned char saved_ctest4; - unsigned char saved_ctest7; - unsigned char saved_dcntl; - unsigned char saved_scntl3; - - unsigned char this_id_mask; - - /* Debugger information */ - struct NCR53c7x0_break *breakpoints, /* Linked list of all break points */ - *breakpoint_current; /* Current breakpoint being stepped - through, NULL if we are running - normally. */ -#ifdef NCR_DEBUG - int debug_size; /* Size of debug buffer */ - volatile int debug_count; /* Current data count */ - volatile char *debug_buf; /* Output ring buffer */ - volatile char *debug_write; /* Current write pointer */ - volatile char *debug_read; /* Current read pointer */ -#endif /* def NCR_DEBUG */ - - /* XXX - primitive debugging junk, remove when working ? */ - int debug_print_limit; /* Number of commands to print - out exhaustive debugging - information for if - OPTION_DEBUG_DUMP is set */ - - unsigned char debug_lun_limit[16]; /* If OPTION_DEBUG_TARGET_LIMIT - set, puke if commands are sent - to other target/lun combinations */ - - int debug_count_limit; /* Number of commands to execute - before puking to limit debugging - output */ - - - volatile unsigned idle:1; /* set to 1 if idle */ - - /* - * Table of synchronous+wide transfer parameters set on a per-target - * basis. - */ - - volatile struct NCR53c7x0_synchronous sync[16] - __attribute__ ((aligned (4))); - - volatile Scsi_Cmnd *issue_queue - __attribute__ ((aligned (4))); - /* waiting to be issued by - Linux driver */ - volatile struct NCR53c7x0_cmd *running_list; - /* commands running, maintained - by Linux driver */ - - volatile struct NCR53c7x0_cmd *ncrcurrent; /* currently connected - nexus, ONLY valid for - NCR53c700/NCR53c700-66 - */ - - volatile struct NCR53c7x0_cmd *spare; /* pointer to spare, - allocated at probe time, - which we can use for - initialization */ - volatile struct NCR53c7x0_cmd *free; - int max_cmd_size; /* Maximum size of NCR53c7x0_cmd - based on number of - scatter/gather segments, etc. - */ - volatile int num_cmds; /* Number of commands - allocated */ - volatile int extra_allocate; - volatile unsigned char cmd_allocated[16]; /* Have we allocated commands - for this target yet? If not, - do so ASAP */ - volatile unsigned char busy[16][8]; /* number of commands - executing on each target - */ - /* - * Eventually, I'll switch to a coroutine for calling - * cmd->done(cmd), etc. so that we can overlap interrupt - * processing with this code for maximum performance. - */ - - volatile struct NCR53c7x0_cmd *finished_queue; - - /* Shared variables between SCRIPT and host driver */ - volatile u32 *schedule - __attribute__ ((aligned (4))); /* Array of JUMPs to dsa_begin - routines of various DSAs. - When not in use, replace - with jump to next slot */ - - - volatile unsigned char msg_buf[16]; /* buffer for messages - other than the command - complete message */ - - /* Per-target default synchronous and WIDE messages */ - volatile unsigned char synchronous_want[16][5]; - volatile unsigned char wide_want[16][4]; - - /* Bit fielded set of targets we want to speak synchronously with */ - volatile u16 initiate_sdtr; - /* Bit fielded set of targets we want to speak wide with */ - volatile u16 initiate_wdtr; - /* Bit fielded list of targets we've talked to. */ - volatile u16 talked_to; - - /* Array of bit-fielded lun lists that we need to request_sense */ - volatile unsigned char request_sense[16]; - - u32 addr_reconnect_dsa_head - __attribute__ ((aligned (4))); /* RISCy style constant, - address of following */ - volatile u32 reconnect_dsa_head; - /* Data identifying nexus we are trying to match during reselection */ - volatile unsigned char reselected_identify; /* IDENTIFY message */ - volatile unsigned char reselected_tag; /* second byte of queue tag - message or 0 */ - - /* These were static variables before we moved them */ - - s32 NCR53c7xx_zero - __attribute__ ((aligned (4))); - s32 NCR53c7xx_sink; - u32 NOP_insn; - char NCR53c7xx_msg_reject; - char NCR53c7xx_msg_abort; - char NCR53c7xx_msg_nop; - - /* - * Following item introduced by RGH to support NCRc710, which is - * VERY brain-dead when it come to memory moves - */ - - /* DSA save area used only by the NCR chip */ - volatile unsigned long saved2_dsa - __attribute__ ((aligned (4))); - - volatile unsigned long emulated_intfly - __attribute__ ((aligned (4))); - - volatile int event_size, event_index; - volatile struct NCR53c7x0_event *events; - - /* If we need to generate code to kill off the currently connected - command, this is where we do it. Should have a BMI instruction - to source or sink the current data, followed by a JUMP - to abort_connected */ - - u32 *abort_script; - - int script_count; /* Size of script in words */ - u32 script[0]; /* Relocated SCSI script */ - -}; - -#define SCSI_IRQ_NONE 255 -#define DMA_NONE 255 -#define IRQ_AUTO 254 -#define DMA_AUTO 254 - -#define BOARD_GENERIC 0 - -#define NCR53c7x0_insn_size(insn) \ - (((insn) & DCMD_TYPE_MASK) == DCMD_TYPE_MMI ? 3 : 2) - - -#define NCR53c7x0_local_declare() \ - volatile unsigned char *NCR53c7x0_address_memory; \ - unsigned int NCR53c7x0_address_io; \ - int NCR53c7x0_memory_mapped - -#define NCR53c7x0_local_setup(host) \ - NCR53c7x0_address_memory = (void *) (host)->base; \ - NCR53c7x0_address_io = (unsigned int) (host)->io_port; \ - NCR53c7x0_memory_mapped = ((struct NCR53c7x0_hostdata *) \ - host->hostdata[0])-> options & OPTION_MEMORY_MAPPED - -#ifdef BIG_ENDIAN -/* These could be more efficient, given that we are always memory mapped, - * but they don't give the same problems as the write macros, so leave - * them. */ -#ifdef __mc68000__ -#define NCR53c7x0_read8(address) \ - ((unsigned int)raw_inb((u32)NCR53c7x0_address_memory + ((u32)(address)^3)) ) - -#define NCR53c7x0_read16(address) \ - ((unsigned int)raw_inw((u32)NCR53c7x0_address_memory + ((u32)(address)^2))) -#else -#define NCR53c7x0_read8(address) \ - (NCR53c7x0_memory_mapped ? \ - (unsigned int)readb((u32)NCR53c7x0_address_memory + ((u32)(address)^3)) : \ - inb(NCR53c7x0_address_io + (address))) - -#define NCR53c7x0_read16(address) \ - (NCR53c7x0_memory_mapped ? \ - (unsigned int)readw((u32)NCR53c7x0_address_memory + ((u32)(address)^2)) : \ - inw(NCR53c7x0_address_io + (address))) -#endif /* mc68000 */ -#else -#define NCR53c7x0_read8(address) \ - (NCR53c7x0_memory_mapped ? \ - (unsigned int)readb((u32)NCR53c7x0_address_memory + (u32)(address)) : \ - inb(NCR53c7x0_address_io + (address))) - -#define NCR53c7x0_read16(address) \ - (NCR53c7x0_memory_mapped ? \ - (unsigned int)readw((u32)NCR53c7x0_address_memory + (u32)(address)) : \ - inw(NCR53c7x0_address_io + (address))) -#endif - -#ifdef __mc68000__ -#define NCR53c7x0_read32(address) \ - ((unsigned int) raw_inl((u32)NCR53c7x0_address_memory + (u32)(address))) -#else -#define NCR53c7x0_read32(address) \ - (NCR53c7x0_memory_mapped ? \ - (unsigned int) readl((u32)NCR53c7x0_address_memory + (u32)(address)) : \ - inl(NCR53c7x0_address_io + (address))) -#endif /* mc68000*/ - -#ifdef BIG_ENDIAN -/* If we are big-endian, then we are not Intel, so probably don't have - * an i/o map as well as a memory map. So, let's assume memory mapped. - * Also, I am having terrible problems trying to persuade the compiler - * not to lay down code which does a read after write for these macros. - * If you remove 'volatile' from writeb() and friends it is ok.... - */ - -#define NCR53c7x0_write8(address,value) \ - *(volatile unsigned char *) \ - ((u32)NCR53c7x0_address_memory + ((u32)(address)^3)) = (value) - -#define NCR53c7x0_write16(address,value) \ - *(volatile unsigned short *) \ - ((u32)NCR53c7x0_address_memory + ((u32)(address)^2)) = (value) - -#define NCR53c7x0_write32(address,value) \ - *(volatile unsigned long *) \ - ((u32)NCR53c7x0_address_memory + ((u32)(address))) = (value) - -#else - -#define NCR53c7x0_write8(address,value) \ - (NCR53c7x0_memory_mapped ? \ - ({writeb((value), (u32)NCR53c7x0_address_memory + (u32)(address)); mb();}) : \ - outb((value), NCR53c7x0_address_io + (address))) - -#define NCR53c7x0_write16(address,value) \ - (NCR53c7x0_memory_mapped ? \ - ({writew((value), (u32)NCR53c7x0_address_memory + (u32)(address)); mb();}) : \ - outw((value), NCR53c7x0_address_io + (address))) - -#define NCR53c7x0_write32(address,value) \ - (NCR53c7x0_memory_mapped ? \ - ({writel((value), (u32)NCR53c7x0_address_memory + (u32)(address)); mb();}) : \ - outl((value), NCR53c7x0_address_io + (address))) - -#endif - -/* Patch arbitrary 32 bit words in the script */ -#define patch_abs_32(script, offset, symbol, value) \ - for (i = 0; i < (sizeof (A_##symbol##_used) / sizeof \ - (u32)); ++i) { \ - (script)[A_##symbol##_used[i] - (offset)] += (value); \ - if (hostdata->options & OPTION_DEBUG_FIXUP) \ - printk("scsi%d : %s reference %d at 0x%x in %s is now 0x%x\n",\ - host->host_no, #symbol, i, A_##symbol##_used[i] - \ - (int)(offset), #script, (script)[A_##symbol##_used[i] - \ - (offset)]); \ - } - -/* Patch read/write instruction immediate field */ -#define patch_abs_rwri_data(script, offset, symbol, value) \ - for (i = 0; i < (sizeof (A_##symbol##_used) / sizeof \ - (u32)); ++i) \ - (script)[A_##symbol##_used[i] - (offset)] = \ - ((script)[A_##symbol##_used[i] - (offset)] & \ - ~DBC_RWRI_IMMEDIATE_MASK) | \ - (((value) << DBC_RWRI_IMMEDIATE_SHIFT) & \ - DBC_RWRI_IMMEDIATE_MASK) - -/* Patch transfer control instruction data field */ -#define patch_abs_tci_data(script, offset, symbol, value) \ - for (i = 0; i < (sizeof (A_##symbol##_used) / sizeof \ - (u32)); ++i) \ - (script)[A_##symbol##_used[i] - (offset)] = \ - ((script)[A_##symbol##_used[i] - (offset)] & \ - ~DBC_TCI_DATA_MASK) | \ - (((value) << DBC_TCI_DATA_SHIFT) & \ - DBC_TCI_DATA_MASK) - -/* Patch field in dsa structure (assignment should be +=?) */ -#define patch_dsa_32(dsa, symbol, word, value) \ - { \ - (dsa)[(hostdata->##symbol - hostdata->dsa_start) / sizeof(u32) \ - + (word)] = (value); \ - if (hostdata->options & OPTION_DEBUG_DSA) \ - printk("scsi : dsa %s symbol %s(%d) word %d now 0x%x\n", \ - #dsa, #symbol, hostdata->##symbol, \ - (word), (u32) (value)); \ - } - -/* Paranoid people could use panic() here. */ -#define FATAL(host) shutdown((host)); - -extern int ncr53c7xx_init(struct scsi_host_template *tpnt, int board, int chip, - unsigned long base, int io_port, int irq, int dma, - long long options, int clock); - -#endif /* NCR53c710_C */ -#endif /* NCR53c710_H */ diff --git a/drivers/scsi/53c7xx.scr b/drivers/scsi/53c7xx.scr deleted file mode 100644 index 9c5694a..0000000 --- a/drivers/scsi/53c7xx.scr +++ /dev/null @@ -1,1591 +0,0 @@ -#undef DEBUG -#undef EVENTS -#undef NO_SELECTION_TIMEOUT -#define BIG_ENDIAN - -; 53c710 driver. Modified from Drew Eckhardts driver -; for 53c810 by Richard Hirst [richard@sleepie.demon.co.uk] -; -; I have left the script for the 53c8xx family in here, as it is likely -; to be useful to see what I changed when bug hunting. - -; NCR 53c810 driver, main script -; Sponsored by -; iX Multiuser Multitasking Magazine -; hm@ix.de -; -; Copyright 1993, 1994, 1995 Drew Eckhardt -; Visionary Computing -; (Unix and Linux consulting and custom programming) -; drew@PoohSticks.ORG -; +1 (303) 786-7975 -; -; TolerANT and SCSI SCRIPTS are registered trademarks of NCR Corporation. -; -; PRE-ALPHA -; -; For more information, please consult -; -; NCR 53C810 -; PCI-SCSI I/O Processor -; Data Manual -; -; NCR 53C710 -; SCSI I/O Processor -; Programmers Guide -; -; NCR Microelectronics -; 1635 Aeroplaza Drive -; Colorado Springs, CO 80916 -; 1+ (719) 578-3400 -; -; Toll free literature number -; +1 (800) 334-5454 -; -; IMPORTANT : This code is self modifying due to the limitations of -; the NCR53c7,8xx series chips. Persons debugging this code with -; the remote debugger should take this into account, and NOT set -; breakpoints in modified instructions. -; -; Design: -; The NCR53c7,8xx family of SCSI chips are busmasters with an onboard -; microcontroller using a simple instruction set. -; -; So, to minimize the effects of interrupt latency, and to maximize -; throughput, this driver offloads the practical maximum amount -; of processing to the SCSI chip while still maintaining a common -; structure. -; -; Where tradeoffs were needed between efficiency on the older -; chips and the newer NCR53c800 series, the NCR53c800 series -; was chosen. -; -; While the NCR53c700 and NCR53c700-66 lacked the facilities to fully -; automate SCSI transfers without host processor intervention, this -; isn't the case with the NCR53c710 and newer chips which allow -; -; - reads and writes to the internal registers from within the SCSI -; scripts, allowing the SCSI SCRIPTS(tm) code to save processor -; state so that multiple threads of execution are possible, and also -; provide an ALU for loop control, etc. -; -; - table indirect addressing for some instructions. This allows -; pointers to be located relative to the DSA ((Data Structure -; Address) register. -; -; These features make it possible to implement a mailbox style interface, -; where the same piece of code is run to handle I/O for multiple threads -; at once minimizing our need to relocate code. Since the NCR53c700/ -; NCR53c800 series have a unique combination of features, making a -; a standard ingoing/outgoing mailbox system, costly, I've modified it. -; -; - Mailboxes are a mixture of code and data. This lets us greatly -; simplify the NCR53c810 code and do things that would otherwise -; not be possible. -; -; The saved data pointer is now implemented as follows : -; -; Control flow has been architected such that if control reaches -; munge_save_data_pointer, on a restore pointers message or -; reconnection, a jump to the address formerly in the TEMP register -; will allow the SCSI command to resume execution. -; - -; -; Note : the DSA structures must be aligned on 32 bit boundaries, -; since the source and destination of MOVE MEMORY instructions -; must share the same alignment and this is the alignment of the -; NCR registers. -; - -; For some systems (MVME166, for example) dmode is always the same, so don't -; waste time writing it - -#if 1 -#define DMODE_MEMORY_TO_NCR -#define DMODE_MEMORY_TO_MEMORY -#define DMODE_NCR_TO_MEMORY -#else -#define DMODE_MEMORY_TO_NCR MOVE dmode_memory_to_ncr TO DMODE -#define DMODE_MEMORY_TO_MEMORY MOVE dmode_memory_to_memory TO DMODE -#define DMODE_NCR_TO_MEMORY MOVE dmode_ncr_to_memory TO DMODE -#endif - -ABSOLUTE dsa_temp_lun = 0 ; Patch to lun for current dsa -ABSOLUTE dsa_temp_next = 0 ; Patch to dsa next for current dsa -ABSOLUTE dsa_temp_addr_next = 0 ; Patch to address of dsa next address - ; for current dsa -ABSOLUTE dsa_temp_sync = 0 ; Patch to address of per-target - ; sync routine -ABSOLUTE dsa_sscf_710 = 0 ; Patch to address of per-target - ; sscf value (53c710) -ABSOLUTE dsa_temp_target = 0 ; Patch to id for current dsa -ABSOLUTE dsa_temp_addr_saved_pointer = 0; Patch to address of per-command - ; saved data pointer -ABSOLUTE dsa_temp_addr_residual = 0 ; Patch to address of per-command - ; current residual code -ABSOLUTE dsa_temp_addr_saved_residual = 0; Patch to address of per-command - ; saved residual code -ABSOLUTE dsa_temp_addr_new_value = 0 ; Address of value for JUMP operand -ABSOLUTE dsa_temp_addr_array_value = 0 ; Address to copy to -ABSOLUTE dsa_temp_addr_dsa_value = 0 ; Address of this DSA value - -; -; Once a device has initiated reselection, we need to compare it -; against the singly linked list of commands which have disconnected -; and are pending reselection. These commands are maintained in -; an unordered singly linked list of DSA structures, through the -; DSA pointers at their 'centers' headed by the reconnect_dsa_head -; pointer. -; -; To avoid complications in removing commands from the list, -; I minimize the amount of expensive (at eight operations per -; addition @ 500-600ns each) pointer operations which must -; be done in the NCR driver by precomputing them on the -; host processor during dsa structure generation. -; -; The fixed-up per DSA code knows how to recognize the nexus -; associated with the corresponding SCSI command, and modifies -; the source and destination pointers for the MOVE MEMORY -; instruction which is executed when reselected_ok is called -; to remove the command from the list. Similarly, DSA is -; loaded with the address of the next DSA structure and -; reselected_check_next is called if a failure occurs. -; -; Perhaps more concisely, the net effect of the mess is -; -; for (dsa = reconnect_dsa_head, dest = &reconnect_dsa_head, -; src = NULL; dsa; dest = &dsa->next, dsa = dsa->next) { -; src = &dsa->next; -; if (target_id == dsa->id && target_lun == dsa->lun) { -; *dest = *src; -; break; -; } -; } -; -; if (!dsa) -; error (int_err_unexpected_reselect); -; else -; longjmp (dsa->jump_resume, 0); -; -; - -#if (CHIP != 700) && (CHIP != 70066) -; Define DSA structure used for mailboxes -ENTRY dsa_code_template -dsa_code_template: -ENTRY dsa_code_begin -dsa_code_begin: -; RGH: Don't care about TEMP and DSA here - DMODE_MEMORY_TO_NCR - MOVE MEMORY 4, dsa_temp_addr_dsa_value, addr_scratch - DMODE_MEMORY_TO_MEMORY -#if (CHIP == 710) - MOVE MEMORY 4, addr_scratch, saved_dsa - ; We are about to go and select the device, so must set SSCF bits - MOVE MEMORY 4, dsa_sscf_710, addr_scratch -#ifdef BIG_ENDIAN - MOVE SCRATCH3 TO SFBR -#else - MOVE SCRATCH0 TO SFBR -#endif - MOVE SFBR TO SBCL - MOVE MEMORY 4, saved_dsa, addr_dsa -#else - CALL scratch_to_dsa -#endif - CALL select -; Handle the phase mismatch which may have resulted from the -; MOVE FROM dsa_msgout if we returned here. The CLEAR ATN -; may or may not be necessary, and we should update script_asm.pl -; to handle multiple pieces. - CLEAR ATN - CLEAR ACK - -; Replace second operand with address of JUMP instruction dest operand -; in schedule table for this DSA. Becomes dsa_jump_dest in 53c7,8xx.c. -ENTRY dsa_code_fix_jump -dsa_code_fix_jump: - MOVE MEMORY 4, NOP_insn, 0 - JUMP select_done - -; wrong_dsa loads the DSA register with the value of the dsa_next -; field. -; -wrong_dsa: -#if (CHIP == 710) -; NOTE DSA is corrupt when we arrive here! -#endif -; Patch the MOVE MEMORY INSTRUCTION such that -; the destination address is the address of the OLD -; next pointer. -; - MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 8 - DMODE_MEMORY_TO_NCR -; -; Move the _contents_ of the next pointer into the DSA register as -; the next I_T_L or I_T_L_Q tupple to check against the established -; nexus. -; - MOVE MEMORY 4, dsa_temp_next, addr_scratch - DMODE_MEMORY_TO_MEMORY -#if (CHIP == 710) - MOVE MEMORY 4, addr_scratch, saved_dsa - MOVE MEMORY 4, saved_dsa, addr_dsa -#else - CALL scratch_to_dsa -#endif - JUMP reselected_check_next - -ABSOLUTE dsa_save_data_pointer = 0 -ENTRY dsa_code_save_data_pointer -dsa_code_save_data_pointer: -#if (CHIP == 710) - ; When we get here, TEMP has been saved in jump_temp+4, DSA is corrupt - ; We MUST return with DSA correct - MOVE MEMORY 4, jump_temp+4, dsa_temp_addr_saved_pointer -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_residual, dsa_temp_addr_saved_residual - CLEAR ACK -#ifdef DEBUG - INT int_debug_saved -#endif - MOVE MEMORY 4, saved_dsa, addr_dsa - JUMP jump_temp -#else - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_temp, dsa_temp_addr_saved_pointer - DMODE_MEMORY_TO_MEMORY -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_residual, dsa_temp_addr_saved_residual - CLEAR ACK -#ifdef DEBUG - INT int_debug_saved -#endif - RETURN -#endif -ABSOLUTE dsa_restore_pointers = 0 -ENTRY dsa_code_restore_pointers -dsa_code_restore_pointers: -#if (CHIP == 710) - ; TEMP and DSA are corrupt when we get here, but who cares! - MOVE MEMORY 4, dsa_temp_addr_saved_pointer, jump_temp + 4 -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_saved_residual, dsa_temp_addr_residual - CLEAR ACK - ; Restore DSA, note we don't care about TEMP - MOVE MEMORY 4, saved_dsa, addr_dsa -#ifdef DEBUG - INT int_debug_restored -#endif - JUMP jump_temp -#else - DMODE_MEMORY_TO_NCR - MOVE MEMORY 4, dsa_temp_addr_saved_pointer, addr_temp - DMODE_MEMORY_TO_MEMORY -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_saved_residual, dsa_temp_addr_residual - CLEAR ACK -#ifdef DEBUG - INT int_debug_restored -#endif - RETURN -#endif - -ABSOLUTE dsa_check_reselect = 0 -; dsa_check_reselect determines whether or not the current target and -; lun match the current DSA -ENTRY dsa_code_check_reselect -dsa_code_check_reselect: -#if (CHIP == 710) - /* Arrives here with DSA correct */ - /* Assumes we are always ID 7 */ - MOVE LCRC TO SFBR ; LCRC has our ID and his ID bits set - JUMP REL (wrong_dsa), IF NOT dsa_temp_target, AND MASK 0x80 -#else - MOVE SSID TO SFBR ; SSID contains 3 bit target ID -; FIXME : we need to accommodate bit fielded and binary here for '7xx/'8xx chips - JUMP REL (wrong_dsa), IF NOT dsa_temp_target, AND MASK 0xf8 -#endif -; -; Hack - move to scratch first, since SFBR is not writeable -; via the CPU and hence a MOVE MEMORY instruction. -; - DMODE_MEMORY_TO_NCR - MOVE MEMORY 1, reselected_identify, addr_scratch - DMODE_MEMORY_TO_MEMORY -#ifdef BIG_ENDIAN - ; BIG ENDIAN ON MVME16x - MOVE SCRATCH3 TO SFBR -#else - MOVE SCRATCH0 TO SFBR -#endif -; FIXME : we need to accommodate bit fielded and binary here for '7xx/'8xx chips -; Are you sure about that? richard@sleepie.demon.co.uk - JUMP REL (wrong_dsa), IF NOT dsa_temp_lun, AND MASK 0xf8 -; Patch the MOVE MEMORY INSTRUCTION such that -; the source address is the address of this dsa's -; next pointer. - MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 4 - CALL reselected_ok -#if (CHIP == 710) -; Restore DSA following memory moves in reselected_ok -; dsa_temp_sync doesn't really care about DSA, but it has an -; optional debug INT so a valid DSA is a good idea. - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif - CALL dsa_temp_sync -; Release ACK on the IDENTIFY message _after_ we've set the synchronous -; transfer parameters! - CLEAR ACK -; Implicitly restore pointers on reselection, so a RETURN -; will transfer control back to the right spot. - CALL REL (dsa_code_restore_pointers) - RETURN -ENTRY dsa_zero -dsa_zero: -ENTRY dsa_code_template_end -dsa_code_template_end: - -; Perform sanity check for dsa_fields_start == dsa_code_template_end - -; dsa_zero, puke. - -ABSOLUTE dsa_fields_start = 0 ; Sanity marker - ; pad 48 bytes (fix this RSN) -ABSOLUTE dsa_next = 48 ; len 4 Next DSA - ; del 4 Previous DSA address -ABSOLUTE dsa_cmnd = 56 ; len 4 Scsi_Cmnd * for this thread. -ABSOLUTE dsa_select = 60 ; len 4 Device ID, Period, Offset for - ; table indirect select -ABSOLUTE dsa_msgout = 64 ; len 8 table indirect move parameter for - ; select message -ABSOLUTE dsa_cmdout = 72 ; len 8 table indirect move parameter for - ; command -ABSOLUTE dsa_dataout = 80 ; len 4 code pointer for dataout -ABSOLUTE dsa_datain = 84 ; len 4 code pointer for datain -ABSOLUTE dsa_msgin = 88 ; len 8 table indirect move for msgin -ABSOLUTE dsa_status = 96 ; len 8 table indirect move for status byte -ABSOLUTE dsa_msgout_other = 104 ; len 8 table indirect for normal message out - ; (Synchronous transfer negotiation, etc). -ABSOLUTE dsa_end = 112 - -ABSOLUTE schedule = 0 ; Array of JUMP dsa_begin or JUMP (next), - ; terminated by a call to JUMP wait_reselect - -; Linked lists of DSA structures -ABSOLUTE reconnect_dsa_head = 0 ; Link list of DSAs which can reconnect -ABSOLUTE addr_reconnect_dsa_head = 0 ; Address of variable containing - ; address of reconnect_dsa_head - -; These select the source and destination of a MOVE MEMORY instruction -ABSOLUTE dmode_memory_to_memory = 0x0 -ABSOLUTE dmode_memory_to_ncr = 0x0 -ABSOLUTE dmode_ncr_to_memory = 0x0 - -ABSOLUTE addr_scratch = 0x0 -ABSOLUTE addr_temp = 0x0 -#if (CHIP == 710) -ABSOLUTE saved_dsa = 0x0 -ABSOLUTE emulfly = 0x0 -ABSOLUTE addr_dsa = 0x0 -#endif -#endif /* CHIP != 700 && CHIP != 70066 */ - -; Interrupts - -; MSB indicates type -; 0 handle error condition -; 1 handle message -; 2 handle normal condition -; 3 debugging interrupt -; 4 testing interrupt -; Next byte indicates specific error - -; XXX not yet implemented, I'm not sure if I want to - -; Next byte indicates the routine the error occurred in -; The LSB indicates the specific place the error occurred - -ABSOLUTE int_err_unexpected_phase = 0x00000000 ; Unexpected phase encountered -ABSOLUTE int_err_selected = 0x00010000 ; SELECTED (nee RESELECTED) -ABSOLUTE int_err_unexpected_reselect = 0x00020000 -ABSOLUTE int_err_check_condition = 0x00030000 -ABSOLUTE int_err_no_phase = 0x00040000 -ABSOLUTE int_msg_wdtr = 0x01000000 ; WDTR message received -ABSOLUTE int_msg_sdtr = 0x01010000 ; SDTR received -ABSOLUTE int_msg_1 = 0x01020000 ; single byte special message - ; received - -ABSOLUTE int_norm_select_complete = 0x02000000 ; Select complete, reprogram - ; registers. -ABSOLUTE int_norm_reselect_complete = 0x02010000 ; Nexus established -ABSOLUTE int_norm_command_complete = 0x02020000 ; Command complete -ABSOLUTE int_norm_disconnected = 0x02030000 ; Disconnected -ABSOLUTE int_norm_aborted =0x02040000 ; Aborted *dsa -ABSOLUTE int_norm_reset = 0x02050000 ; Generated BUS reset. -ABSOLUTE int_norm_emulateintfly = 0x02060000 ; 53C710 Emulated intfly -ABSOLUTE int_debug_break = 0x03000000 ; Break point -#ifdef DEBUG -ABSOLUTE int_debug_scheduled = 0x03010000 ; new I/O scheduled -ABSOLUTE int_debug_idle = 0x03020000 ; scheduler is idle -ABSOLUTE int_debug_dsa_loaded = 0x03030000 ; dsa reloaded -ABSOLUTE int_debug_reselected = 0x03040000 ; NCR reselected -ABSOLUTE int_debug_head = 0x03050000 ; issue head overwritten -ABSOLUTE int_debug_disconnected = 0x03060000 ; disconnected -ABSOLUTE int_debug_disconnect_msg = 0x03070000 ; got message to disconnect -ABSOLUTE int_debug_dsa_schedule = 0x03080000 ; in dsa_schedule -ABSOLUTE int_debug_reselect_check = 0x03090000 ; Check for reselection of DSA -ABSOLUTE int_debug_reselected_ok = 0x030a0000 ; Reselection accepted -#endif -ABSOLUTE int_debug_panic = 0x030b0000 ; Panic driver -#ifdef DEBUG -ABSOLUTE int_debug_saved = 0x030c0000 ; save/restore pointers -ABSOLUTE int_debug_restored = 0x030d0000 -ABSOLUTE int_debug_sync = 0x030e0000 ; Sanity check synchronous - ; parameters. -ABSOLUTE int_debug_datain = 0x030f0000 ; going into data in phase - ; now. -ABSOLUTE int_debug_check_dsa = 0x03100000 ; Sanity check DSA against - ; SDID. -#endif - -ABSOLUTE int_test_1 = 0x04000000 ; Test 1 complete -ABSOLUTE int_test_2 = 0x04010000 ; Test 2 complete -ABSOLUTE int_test_3 = 0x04020000 ; Test 3 complete - - -; These should start with 0x05000000, with low bits incrementing for -; each one. - -#ifdef EVENTS -ABSOLUTE int_EVENT_SELECT = 0 -ABSOLUTE int_EVENT_DISCONNECT = 0 -ABSOLUTE int_EVENT_RESELECT = 0 -ABSOLUTE int_EVENT_COMPLETE = 0 -ABSOLUTE int_EVENT_IDLE = 0 -ABSOLUTE int_EVENT_SELECT_FAILED = 0 -ABSOLUTE int_EVENT_BEFORE_SELECT = 0 -ABSOLUTE int_EVENT_RESELECT_FAILED = 0 -#endif - -ABSOLUTE NCR53c7xx_msg_abort = 0 ; Pointer to abort message -ABSOLUTE NCR53c7xx_msg_reject = 0 ; Pointer to reject message -ABSOLUTE NCR53c7xx_zero = 0 ; long with zero in it, use for source -ABSOLUTE NCR53c7xx_sink = 0 ; long to dump worthless data in -ABSOLUTE NOP_insn = 0 ; NOP instruction - -; Pointer to message, potentially multi-byte -ABSOLUTE msg_buf = 0 - -; Pointer to holding area for reselection information -ABSOLUTE reselected_identify = 0 -ABSOLUTE reselected_tag = 0 - -; Request sense command pointer, it's a 6 byte command, should -; be constant for all commands since we always want 16 bytes of -; sense and we don't need to change any fields as we did under -; SCSI-I when we actually cared about the LUN field. -;EXTERNAL NCR53c7xx_sense ; Request sense command - -#if (CHIP != 700) && (CHIP != 70066) -; dsa_schedule -; PURPOSE : after a DISCONNECT message has been received, and pointers -; saved, insert the current DSA structure at the head of the -; disconnected queue and fall through to the scheduler. -; -; CALLS : OK -; -; INPUTS : dsa - current DSA structure, reconnect_dsa_head - list -; of disconnected commands -; -; MODIFIES : SCRATCH, reconnect_dsa_head -; -; EXITS : always passes control to schedule - -ENTRY dsa_schedule -dsa_schedule: -#ifdef DEBUG - INT int_debug_dsa_schedule -#endif - -; -; Calculate the address of the next pointer within the DSA -; structure of the command that is currently disconnecting -; -#if (CHIP == 710) - ; Read what should be the current DSA from memory - actual DSA - ; register is probably corrupt - MOVE MEMORY 4, saved_dsa, addr_scratch -#else - CALL dsa_to_scratch -#endif - MOVE SCRATCH0 + dsa_next TO SCRATCH0 - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - -; Point the next field of this DSA structure at the current disconnected -; list - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, dsa_schedule_insert + 8 - DMODE_MEMORY_TO_MEMORY -dsa_schedule_insert: - MOVE MEMORY 4, reconnect_dsa_head, 0 - -; And update the head pointer. -#if (CHIP == 710) - ; Read what should be the current DSA from memory - actual DSA - ; register is probably corrupt - MOVE MEMORY 4, saved_dsa, addr_scratch -#else - CALL dsa_to_scratch -#endif - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, reconnect_dsa_head - DMODE_MEMORY_TO_MEMORY -/* Temporarily, see what happens. */ -#ifndef ORIGINAL -#if (CHIP != 710) - MOVE SCNTL2 & 0x7f TO SCNTL2 -#endif - CLEAR ACK -#endif -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif - WAIT DISCONNECT -#ifdef EVENTS - INT int_EVENT_DISCONNECT; -#endif -#ifdef DEBUG - INT int_debug_disconnected -#endif - JUMP schedule -#endif - -; -; select -; -; PURPOSE : establish a nexus for the SCSI command referenced by DSA. -; On success, the current DSA structure is removed from the issue -; queue. Usually, this is entered as a fall-through from schedule, -; although the contingent allegiance handling code will write -; the select entry address to the DSP to restart a command as a -; REQUEST SENSE. A message is sent (usually IDENTIFY, although -; additional SDTR or WDTR messages may be sent). COMMAND OUT -; is handled. -; -; INPUTS : DSA - SCSI command, issue_dsa_head -; -; CALLS : NOT OK -; -; MODIFIES : SCRATCH, issue_dsa_head -; -; EXITS : on reselection or selection, go to select_failed -; otherwise, RETURN so control is passed back to -; dsa_begin. -; - -ENTRY select -select: - -#ifdef EVENTS - INT int_EVENT_BEFORE_SELECT -#endif - -#ifdef DEBUG - INT int_debug_scheduled -#endif - CLEAR TARGET - -; XXX -; -; In effect, SELECTION operations are backgrounded, with execution -; continuing until code which waits for REQ or a fatal interrupt is -; encountered. -; -; So, for more performance, we could overlap the code which removes -; the command from the NCRs issue queue with the selection, but -; at this point I don't want to deal with the error recovery. -; - -#if (CHIP != 700) && (CHIP != 70066) -#if (CHIP == 710) - ; Enable selection timer -#ifdef NO_SELECTION_TIMEOUT - MOVE CTEST7 & 0xff TO CTEST7 -#else - MOVE CTEST7 & 0xef TO CTEST7 -#endif -#endif - SELECT ATN FROM dsa_select, select_failed - JUMP select_msgout, WHEN MSG_OUT -ENTRY select_msgout -select_msgout: -#if (CHIP == 710) - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 -#endif - MOVE FROM dsa_msgout, WHEN MSG_OUT -#else -ENTRY select_msgout - SELECT ATN 0, select_failed -select_msgout: - MOVE 0, 0, WHEN MSGOUT -#endif - -#ifdef EVENTS - INT int_EVENT_SELECT -#endif - RETURN - -; -; select_done -; -; PURPOSE: continue on to normal data transfer; called as the exit -; point from dsa_begin. -; -; INPUTS: dsa -; -; CALLS: OK -; -; - -select_done: -#if (CHIP == 710) -; NOTE DSA is corrupt when we arrive here! - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif - -#ifdef DEBUG -ENTRY select_check_dsa -select_check_dsa: - INT int_debug_check_dsa -#endif - -; After a successful selection, we should get either a CMD phase or -; some transfer request negotiation message. - - JUMP cmdout, WHEN CMD - INT int_err_unexpected_phase, WHEN NOT MSG_IN - -select_msg_in: - CALL msg_in, WHEN MSG_IN - JUMP select_msg_in, WHEN MSG_IN - -cmdout: - INT int_err_unexpected_phase, WHEN NOT CMD -#if (CHIP == 700) - INT int_norm_selected -#endif -ENTRY cmdout_cmdout -cmdout_cmdout: -#if (CHIP != 700) && (CHIP != 70066) - MOVE FROM dsa_cmdout, WHEN CMD -#else - MOVE 0, 0, WHEN CMD -#endif /* (CHIP != 700) && (CHIP != 70066) */ - -; -; data_transfer -; other_out -; other_in -; other_transfer -; -; PURPOSE : handle the main data transfer for a SCSI command in -; several parts. In the first part, data_transfer, DATA_IN -; and DATA_OUT phases are allowed, with the user provided -; code (usually dynamically generated based on the scatter/gather -; list associated with a SCSI command) called to handle these -; phases. -; -; After control has passed to one of the user provided -; DATA_IN or DATA_OUT routines, back calls are made to -; other_transfer_in or other_transfer_out to handle non-DATA IN -; and DATA OUT phases respectively, with the state of the active -; data pointer being preserved in TEMP. -; -; On completion, the user code passes control to other_transfer -; which causes DATA_IN and DATA_OUT to result in unexpected_phase -; interrupts so that data overruns may be trapped. -; -; INPUTS : DSA - SCSI command -; -; CALLS : OK in data_transfer_start, not ok in other_out and other_in, ok in -; other_transfer -; -; MODIFIES : SCRATCH -; -; EXITS : if STATUS IN is detected, signifying command completion, -; the NCR jumps to command_complete. If MSG IN occurs, a -; CALL is made to msg_in. Otherwise, other_transfer runs in -; an infinite loop. -; - -ENTRY data_transfer -data_transfer: - JUMP cmdout_cmdout, WHEN CMD - CALL msg_in, WHEN MSG_IN - INT int_err_unexpected_phase, WHEN MSG_OUT - JUMP do_dataout, WHEN DATA_OUT - JUMP do_datain, WHEN DATA_IN - JUMP command_complete, WHEN STATUS - JUMP data_transfer -ENTRY end_data_transfer -end_data_transfer: - -; -; FIXME: On NCR53c700 and NCR53c700-66 chips, do_dataout/do_datain -; should be fixed up whenever the nexus changes so it can point to the -; correct routine for that command. -; - -#if (CHIP != 700) && (CHIP != 70066) -; Nasty jump to dsa->dataout -do_dataout: -#if (CHIP == 710) - MOVE MEMORY 4, saved_dsa, addr_scratch -#else - CALL dsa_to_scratch -#endif - MOVE SCRATCH0 + dsa_dataout TO SCRATCH0 - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, dataout_to_jump + 4 - DMODE_MEMORY_TO_MEMORY -dataout_to_jump: - MOVE MEMORY 4, 0, dataout_jump + 4 -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif -dataout_jump: - JUMP 0 - -; Nasty jump to dsa->dsain -do_datain: -#if (CHIP == 710) - MOVE MEMORY 4, saved_dsa, addr_scratch -#else - CALL dsa_to_scratch -#endif - MOVE SCRATCH0 + dsa_datain TO SCRATCH0 - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, datain_to_jump + 4 - DMODE_MEMORY_TO_MEMORY -ENTRY datain_to_jump -datain_to_jump: - MOVE MEMORY 4, 0, datain_jump + 4 -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif -#ifdef DEBUG - INT int_debug_datain -#endif -datain_jump: - JUMP 0 -#endif /* (CHIP != 700) && (CHIP != 70066) */ - - -; Note that other_out and other_in loop until a non-data phase -; is discovered, so we only execute return statements when we -; can go on to the next data phase block move statement. - -ENTRY other_out -other_out: -#if 0 - INT 0x03ffdead -#endif - INT int_err_unexpected_phase, WHEN CMD - JUMP msg_in_restart, WHEN MSG_IN - INT int_err_unexpected_phase, WHEN MSG_OUT - INT int_err_unexpected_phase, WHEN DATA_IN - JUMP command_complete, WHEN STATUS - JUMP other_out, WHEN NOT DATA_OUT -#if (CHIP == 710) -; TEMP should be OK, as we got here from a call in the user dataout code. -#endif - RETURN - -ENTRY other_in -other_in: -#if 0 - INT 0x03ffdead -#endif - INT int_err_unexpected_phase, WHEN CMD - JUMP msg_in_restart, WHEN MSG_IN - INT int_err_unexpected_phase, WHEN MSG_OUT - INT int_err_unexpected_phase, WHEN DATA_OUT - JUMP command_complete, WHEN STATUS - JUMP other_in, WHEN NOT DATA_IN -#if (CHIP == 710) -; TEMP should be OK, as we got here from a call in the user datain code. -#endif - RETURN - - -ENTRY other_transfer -other_transfer: - INT int_err_unexpected_phase, WHEN CMD - CALL msg_in, WHEN MSG_IN - INT int_err_unexpected_phase, WHEN MSG_OUT - INT int_err_unexpected_phase, WHEN DATA_OUT - INT int_err_unexpected_phase, WHEN DATA_IN - JUMP command_complete, WHEN STATUS - JUMP other_transfer - -; -; msg_in_restart -; msg_in -; munge_msg -; -; PURPOSE : process messages from a target. msg_in is called when the -; caller hasn't read the first byte of the message. munge_message -; is called when the caller has read the first byte of the message, -; and left it in SFBR. msg_in_restart is called when the caller -; hasn't read the first byte of the message, and wishes RETURN -; to transfer control back to the address of the conditional -; CALL instruction rather than to the instruction after it. -; -; Various int_* interrupts are generated when the host system -; needs to intervene, as is the case with SDTR, WDTR, and -; INITIATE RECOVERY messages. -; -; When the host system handles one of these interrupts, -; it can respond by reentering at reject_message, -; which rejects the message and returns control to -; the caller of msg_in or munge_msg, accept_message -; which clears ACK and returns control, or reply_message -; which sends the message pointed to by the DSA -; msgout_other table indirect field. -; -; DISCONNECT messages are handled by moving the command -; to the reconnect_dsa_queue. -#if (CHIP == 710) -; NOTE: DSA should be valid when we get here - we cannot save both it -; and TEMP in this routine. -#endif -; -; INPUTS : DSA - SCSI COMMAND, SFBR - first byte of message (munge_msg -; only) -; -; CALLS : NO. The TEMP register isn't backed up to allow nested calls. -; -; MODIFIES : SCRATCH, DSA on DISCONNECT -; -; EXITS : On receipt of SAVE DATA POINTER, RESTORE POINTERS, -; and normal return from message handlers running under -; Linux, control is returned to the caller. Receipt -; of DISCONNECT messages pass control to dsa_schedule. -; -ENTRY msg_in_restart -msg_in_restart: -; XXX - hackish -; -; Since it's easier to debug changes to the statically -; compiled code, rather than the dynamically generated -; stuff, such as -; -; MOVE x, y, WHEN data_phase -; CALL other_z, WHEN NOT data_phase -; MOVE x, y, WHEN data_phase -; -; I'd like to have certain routines (notably the message handler) -; restart on the conditional call rather than the next instruction. -; -; So, subtract 8 from the return address - - MOVE TEMP0 + 0xf8 TO TEMP0 - MOVE TEMP1 + 0xff TO TEMP1 WITH CARRY - MOVE TEMP2 + 0xff TO TEMP2 WITH CARRY - MOVE TEMP3 + 0xff TO TEMP3 WITH CARRY - -ENTRY msg_in -msg_in: - MOVE 1, msg_buf, WHEN MSG_IN - -munge_msg: - JUMP munge_extended, IF 0x01 ; EXTENDED MESSAGE - JUMP munge_2, IF 0x20, AND MASK 0xdf ; two byte message -; -; XXX - I've seen a handful of broken SCSI devices which fail to issue -; a SAVE POINTERS message before disconnecting in the middle of -; a transfer, assuming that the DATA POINTER will be implicitly -; restored. -; -; Historically, I've often done an implicit save when the DISCONNECT -; message is processed. We may want to consider having the option of -; doing that here. -; - JUMP munge_save_data_pointer, IF 0x02 ; SAVE DATA POINTER - JUMP munge_restore_pointers, IF 0x03 ; RESTORE POINTERS - JUMP munge_disconnect, IF 0x04 ; DISCONNECT - INT int_msg_1, IF 0x07 ; MESSAGE REJECT - INT int_msg_1, IF 0x0f ; INITIATE RECOVERY -#ifdef EVENTS - INT int_EVENT_SELECT_FAILED -#endif - JUMP reject_message - -munge_2: - JUMP reject_message -; -; The SCSI standard allows targets to recover from transient -; error conditions by backing up the data pointer with a -; RESTORE POINTERS message. -; -; So, we must save and restore the _residual_ code as well as -; the current instruction pointer. Because of this messiness, -; it is simpler to put dynamic code in the dsa for this and to -; just do a simple jump down there. -; - -munge_save_data_pointer: -#if (CHIP == 710) - ; We have something in TEMP here, so first we must save that - MOVE TEMP0 TO SFBR - MOVE SFBR TO SCRATCH0 - MOVE TEMP1 TO SFBR - MOVE SFBR TO SCRATCH1 - MOVE TEMP2 TO SFBR - MOVE SFBR TO SCRATCH2 - MOVE TEMP3 TO SFBR - MOVE SFBR TO SCRATCH3 - MOVE MEMORY 4, addr_scratch, jump_temp + 4 - ; Now restore DSA - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif - MOVE DSA0 + dsa_save_data_pointer TO SFBR - MOVE SFBR TO SCRATCH0 - MOVE DSA1 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH1 - MOVE DSA2 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH2 - MOVE DSA3 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH3 - - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, jump_dsa_save + 4 - DMODE_MEMORY_TO_MEMORY -jump_dsa_save: - JUMP 0 - -munge_restore_pointers: -#if (CHIP == 710) - ; The code at dsa_restore_pointers will RETURN, but we don't care - ; about TEMP here, as it will overwrite it anyway. -#endif - MOVE DSA0 + dsa_restore_pointers TO SFBR - MOVE SFBR TO SCRATCH0 - MOVE DSA1 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH1 - MOVE DSA2 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH2 - MOVE DSA3 + 0xff TO SFBR WITH CARRY - MOVE SFBR TO SCRATCH3 - - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, jump_dsa_restore + 4 - DMODE_MEMORY_TO_MEMORY -jump_dsa_restore: - JUMP 0 - - -munge_disconnect: -#ifdef DEBUG - INT int_debug_disconnect_msg -#endif - -/* - * Before, we overlapped processing with waiting for disconnect, but - * debugging was beginning to appear messy. Temporarily move things - * to just before the WAIT DISCONNECT. - */ - -#ifdef ORIGINAL -#if (CHIP == 710) -; Following clears Unexpected Disconnect bit. What do we do? -#else - MOVE SCNTL2 & 0x7f TO SCNTL2 -#endif - CLEAR ACK -#endif - -#if (CHIP != 700) && (CHIP != 70066) - JUMP dsa_schedule -#else - WAIT DISCONNECT - INT int_norm_disconnected -#endif - -munge_extended: - CLEAR ACK - INT int_err_unexpected_phase, WHEN NOT MSG_IN - MOVE 1, msg_buf + 1, WHEN MSG_IN - JUMP munge_extended_2, IF 0x02 - JUMP munge_extended_3, IF 0x03 - JUMP reject_message - -munge_extended_2: - CLEAR ACK - MOVE 1, msg_buf + 2, WHEN MSG_IN - JUMP reject_message, IF NOT 0x02 ; Must be WDTR - CLEAR ACK - MOVE 1, msg_buf + 3, WHEN MSG_IN - INT int_msg_wdtr - -munge_extended_3: - CLEAR ACK - MOVE 1, msg_buf + 2, WHEN MSG_IN - JUMP reject_message, IF NOT 0x01 ; Must be SDTR - CLEAR ACK - MOVE 2, msg_buf + 3, WHEN MSG_IN - INT int_msg_sdtr - -ENTRY reject_message -reject_message: - SET ATN - CLEAR ACK - MOVE 1, NCR53c7xx_msg_reject, WHEN MSG_OUT - RETURN - -ENTRY accept_message -accept_message: - CLEAR ATN - CLEAR ACK - RETURN - -ENTRY respond_message -respond_message: - SET ATN - CLEAR ACK - MOVE FROM dsa_msgout_other, WHEN MSG_OUT - RETURN - -; -; command_complete -; -; PURPOSE : handle command termination when STATUS IN is detected by reading -; a status byte followed by a command termination message. -; -; Normal termination results in an INTFLY instruction, and -; the host system can pick out which command terminated by -; examining the MESSAGE and STATUS buffers of all currently -; executing commands; -; -; Abnormal (CHECK_CONDITION) termination results in an -; int_err_check_condition interrupt so that a REQUEST SENSE -; command can be issued out-of-order so that no other command -; clears the contingent allegiance condition. -; -; -; INPUTS : DSA - command -; -; CALLS : OK -; -; EXITS : On successful termination, control is passed to schedule. -; On abnormal termination, the user will usually modify the -; DSA fields and corresponding buffers and return control -; to select. -; - -ENTRY command_complete -command_complete: - MOVE FROM dsa_status, WHEN STATUS -#if (CHIP != 700) && (CHIP != 70066) - MOVE SFBR TO SCRATCH0 ; Save status -#endif /* (CHIP != 700) && (CHIP != 70066) */ -ENTRY command_complete_msgin -command_complete_msgin: - MOVE FROM dsa_msgin, WHEN MSG_IN -; Indicate that we should be expecting a disconnect -#if (CHIP != 710) - MOVE SCNTL2 & 0x7f TO SCNTL2 -#else - ; Above code cleared the Unexpected Disconnect bit, what do we do? -#endif - CLEAR ACK -#if (CHIP != 700) && (CHIP != 70066) - WAIT DISCONNECT - -; -; The SCSI specification states that when a UNIT ATTENTION condition -; is pending, as indicated by a CHECK CONDITION status message, -; the target shall revert to asynchronous transfers. Since -; synchronous transfers parameters are maintained on a per INITIATOR/TARGET -; basis, and returning control to our scheduler could work on a command -; running on another lun on that target using the old parameters, we must -; interrupt the host processor to get them changed, or change them ourselves. -; -; Once SCSI-II tagged queueing is implemented, things will be even more -; hairy, since contingent allegiance conditions exist on a per-target/lun -; basis, and issuing a new command with a different tag would clear it. -; In these cases, we must interrupt the host processor to get a request -; added to the HEAD of the queue with the request sense command, or we -; must automatically issue the request sense command. - -#if 0 - MOVE SCRATCH0 TO SFBR - JUMP command_failed, IF 0x02 -#endif -#if (CHIP == 710) -#if defined(MVME16x_INTFLY) -; For MVME16x (ie CHIP=710) we will force an INTFLY by triggering a software -; interrupt (SW7). We can use SCRATCH, as we are about to jump to -; schedule, which corrupts it anyway. Will probably remove this later, -; but want to check performance effects first. - -#define INTFLY_ADDR 0xfff40070 - - MOVE 0 TO SCRATCH0 - MOVE 0x80 TO SCRATCH1 - MOVE 0 TO SCRATCH2 - MOVE 0 TO SCRATCH3 - MOVE MEMORY 4, addr_scratch, INTFLY_ADDR -#else - INT int_norm_emulateintfly -#endif -#else - INTFLY -#endif -#endif /* (CHIP != 700) && (CHIP != 70066) */ -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif -#ifdef EVENTS - INT int_EVENT_COMPLETE -#endif -#if (CHIP != 700) && (CHIP != 70066) - JUMP schedule -command_failed: - INT int_err_check_condition -#else - INT int_norm_command_complete -#endif - -; -; wait_reselect -; -; PURPOSE : This is essentially the idle routine, where control lands -; when there are no new processes to schedule. wait_reselect -; waits for reselection, selection, and new commands. -; -; When a successful reselection occurs, with the aid -; of fixed up code in each DSA, wait_reselect walks the -; reconnect_dsa_queue, asking each dsa if the target ID -; and LUN match its. -; -; If a match is found, a call is made back to reselected_ok, -; which through the miracles of self modifying code, extracts -; the found DSA from the reconnect_dsa_queue and then -; returns control to the DSAs thread of execution. -; -; INPUTS : NONE -; -; CALLS : OK -; -; MODIFIES : DSA, -; -; EXITS : On successful reselection, control is returned to the -; DSA which called reselected_ok. If the WAIT RESELECT -; was interrupted by a new commands arrival signaled by -; SIG_P, control is passed to schedule. If the NCR is -; selected, the host system is interrupted with an -; int_err_selected which is usually responded to by -; setting DSP to the target_abort address. - -ENTRY wait_reselect -wait_reselect: -#ifdef EVENTS - int int_EVENT_IDLE -#endif -#ifdef DEBUG - int int_debug_idle -#endif - WAIT RESELECT wait_reselect_failed - -reselected: -#ifdef EVENTS - int int_EVENT_RESELECT -#endif - CLEAR TARGET - DMODE_MEMORY_TO_MEMORY - ; Read all data needed to reestablish the nexus - - MOVE 1, reselected_identify, WHEN MSG_IN - ; We used to CLEAR ACK here. -#if (CHIP != 700) && (CHIP != 70066) -#ifdef DEBUG - int int_debug_reselected -#endif - - ; Point DSA at the current head of the disconnected queue. - DMODE_MEMORY_TO_NCR - MOVE MEMORY 4, reconnect_dsa_head, addr_scratch - DMODE_MEMORY_TO_MEMORY -#if (CHIP == 710) - MOVE MEMORY 4, addr_scratch, saved_dsa -#else - CALL scratch_to_dsa -#endif - - ; Fix the update-next pointer so that the reconnect_dsa_head - ; pointer is the one that will be updated if this DSA is a hit - ; and we remove it from the queue. - - MOVE MEMORY 4, addr_reconnect_dsa_head, reselected_ok_patch + 8 -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif - -ENTRY reselected_check_next -reselected_check_next: -#ifdef DEBUG - INT int_debug_reselect_check -#endif - ; Check for a NULL pointer. - MOVE DSA0 TO SFBR - JUMP reselected_not_end, IF NOT 0 - MOVE DSA1 TO SFBR - JUMP reselected_not_end, IF NOT 0 - MOVE DSA2 TO SFBR - JUMP reselected_not_end, IF NOT 0 - MOVE DSA3 TO SFBR - JUMP reselected_not_end, IF NOT 0 - INT int_err_unexpected_reselect - -reselected_not_end: - ; - ; XXX the ALU is only eight bits wide, and the assembler - ; wont do the dirt work for us. As long as dsa_check_reselect - ; is negative, we need to sign extend with 1 bits to the full - ; 32 bit width of the address. - ; - ; A potential work around would be to have a known alignment - ; of the DSA structure such that the base address plus - ; dsa_check_reselect doesn't require carrying from bytes - ; higher than the LSB. - ; - - MOVE DSA0 TO SFBR - MOVE SFBR + dsa_check_reselect TO SCRATCH0 - MOVE DSA1 TO SFBR - MOVE SFBR + 0xff TO SCRATCH1 WITH CARRY - MOVE DSA2 TO SFBR - MOVE SFBR + 0xff TO SCRATCH2 WITH CARRY - MOVE DSA3 TO SFBR - MOVE SFBR + 0xff TO SCRATCH3 WITH CARRY - - DMODE_NCR_TO_MEMORY - MOVE MEMORY 4, addr_scratch, reselected_check + 4 - DMODE_MEMORY_TO_MEMORY -#if (CHIP == 710) - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa -#endif -reselected_check: - JUMP 0 - - -; -; -#if (CHIP == 710) -; We have problems here - the memory move corrupts TEMP and DSA. This -; routine is called from DSA code, and patched from many places. Scratch -; is probably free when it is called. -; We have to: -; copy temp to scratch, one byte at a time -; write scratch to patch a jump in place of the return -; do the move memory -; jump to the patched in return address -; DSA is corrupt when we get here, and can be left corrupt - -ENTRY reselected_ok -reselected_ok: - MOVE TEMP0 TO SFBR - MOVE SFBR TO SCRATCH0 - MOVE TEMP1 TO SFBR - MOVE SFBR TO SCRATCH1 - MOVE TEMP2 TO SFBR - MOVE SFBR TO SCRATCH2 - MOVE TEMP3 TO SFBR - MOVE SFBR TO SCRATCH3 - MOVE MEMORY 4, addr_scratch, reselected_ok_jump + 4 -reselected_ok_patch: - MOVE MEMORY 4, 0, 0 -reselected_ok_jump: - JUMP 0 -#else -ENTRY reselected_ok -reselected_ok: -reselected_ok_patch: - MOVE MEMORY 4, 0, 0 ; Patched : first word - ; is address of - ; successful dsa_next - ; Second word is last - ; unsuccessful dsa_next, - ; starting with - ; dsa_reconnect_head - ; We used to CLEAR ACK here. -#ifdef DEBUG - INT int_debug_reselected_ok -#endif -#ifdef DEBUG - INT int_debug_check_dsa -#endif - RETURN ; Return control to where -#endif -#else - INT int_norm_reselected -#endif /* (CHIP != 700) && (CHIP != 70066) */ - -selected: - INT int_err_selected; - -; -; A select or reselect failure can be caused by one of two conditions : -; 1. SIG_P was set. This will be the case if the user has written -; a new value to a previously NULL head of the issue queue. -; -; 2. The NCR53c810 was selected or reselected by another device. -; -; 3. The bus was already busy since we were selected or reselected -; before starting the command. - -wait_reselect_failed: -#ifdef EVENTS - INT int_EVENT_RESELECT_FAILED -#endif -; Check selected bit. -#if (CHIP == 710) - ; Must work out how to tell if we are selected.... -#else - MOVE SIST0 & 0x20 TO SFBR - JUMP selected, IF 0x20 -#endif -; Reading CTEST2 clears the SIG_P bit in the ISTAT register. - MOVE CTEST2 & 0x40 TO SFBR - JUMP schedule, IF 0x40 -; Check connected bit. -; FIXME: this needs to change if we support target mode - MOVE ISTAT & 0x08 TO SFBR - JUMP reselected, IF 0x08 -; FIXME : Something bogus happened, and we shouldn't fail silently. -#if 0 - JUMP schedule -#else - INT int_debug_panic -#endif - - -select_failed: -#if (CHIP == 710) - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 -#endif -#ifdef EVENTS - int int_EVENT_SELECT_FAILED -#endif -; Otherwise, mask the selected and reselected bits off SIST0 -#if (CHIP ==710) - ; Let's assume we don't get selected for now - MOVE SSTAT0 & 0x10 TO SFBR -#else - MOVE SIST0 & 0x30 TO SFBR - JUMP selected, IF 0x20 -#endif - JUMP reselected, IF 0x10 -; If SIGP is set, the user just gave us another command, and -; we should restart or return to the scheduler. -; Reading CTEST2 clears the SIG_P bit in the ISTAT register. - MOVE CTEST2 & 0x40 TO SFBR - JUMP select, IF 0x40 -; Check connected bit. -; FIXME: this needs to change if we support target mode -; FIXME: is this really necessary? - MOVE ISTAT & 0x08 TO SFBR - JUMP reselected, IF 0x08 -; FIXME : Something bogus happened, and we shouldn't fail silently. -#if 0 - JUMP schedule -#else - INT int_debug_panic -#endif - -; -; test_1 -; test_2 -; -; PURPOSE : run some verification tests on the NCR. test_1 -; copies test_src to test_dest and interrupts the host -; processor, testing for cache coherency and interrupt -; problems in the processes. -; -; test_2 runs a command with offsets relative to the -; DSA on entry, and is useful for miscellaneous experimentation. -; - -; Verify that interrupts are working correctly and that we don't -; have a cache invalidation problem. - -ABSOLUTE test_src = 0, test_dest = 0 -ENTRY test_1 -test_1: - MOVE MEMORY 4, test_src, test_dest - INT int_test_1 - -; -; Run arbitrary commands, with test code establishing a DSA -; - -ENTRY test_2 -test_2: - CLEAR TARGET -#if (CHIP == 710) - ; Enable selection timer -#ifdef NO_SELECTION_TIMEOUT - MOVE CTEST7 & 0xff TO CTEST7 -#else - MOVE CTEST7 & 0xef TO CTEST7 -#endif -#endif - SELECT ATN FROM 0, test_2_fail - JUMP test_2_msgout, WHEN MSG_OUT -ENTRY test_2_msgout -test_2_msgout: -#if (CHIP == 710) - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 -#endif - MOVE FROM 8, WHEN MSG_OUT - MOVE FROM 16, WHEN CMD - MOVE FROM 24, WHEN DATA_IN - MOVE FROM 32, WHEN STATUS - MOVE FROM 40, WHEN MSG_IN -#if (CHIP != 710) - MOVE SCNTL2 & 0x7f TO SCNTL2 -#endif - CLEAR ACK - WAIT DISCONNECT -test_2_fail: -#if (CHIP == 710) - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 -#endif - INT int_test_2 - -ENTRY debug_break -debug_break: - INT int_debug_break - -; -; initiator_abort -; target_abort -; -; PURPOSE : Abort the currently established nexus from with initiator -; or target mode. -; -; - -ENTRY target_abort -target_abort: - SET TARGET - DISCONNECT - CLEAR TARGET - JUMP schedule - -ENTRY initiator_abort -initiator_abort: - SET ATN -; -; The SCSI-I specification says that targets may go into MSG out at -; their leisure upon receipt of the ATN single. On all versions of the -; specification, we can't change phases until REQ transitions true->false, -; so we need to sink/source one byte of data to allow the transition. -; -; For the sake of safety, we'll only source one byte of data in all -; cases, but to accommodate the SCSI-I dain bramage, we'll sink an -; arbitrary number of bytes. - JUMP spew_cmd, WHEN CMD - JUMP eat_msgin, WHEN MSG_IN - JUMP eat_datain, WHEN DATA_IN - JUMP eat_status, WHEN STATUS - JUMP spew_dataout, WHEN DATA_OUT - JUMP sated -spew_cmd: - MOVE 1, NCR53c7xx_zero, WHEN CMD - JUMP sated -eat_msgin: - MOVE 1, NCR53c7xx_sink, WHEN MSG_IN - JUMP eat_msgin, WHEN MSG_IN - JUMP sated -eat_status: - MOVE 1, NCR53c7xx_sink, WHEN STATUS - JUMP eat_status, WHEN STATUS - JUMP sated -eat_datain: - MOVE 1, NCR53c7xx_sink, WHEN DATA_IN - JUMP eat_datain, WHEN DATA_IN - JUMP sated -spew_dataout: - MOVE 1, NCR53c7xx_zero, WHEN DATA_OUT -sated: -#if (CHIP != 710) - MOVE SCNTL2 & 0x7f TO SCNTL2 -#endif - MOVE 1, NCR53c7xx_msg_abort, WHEN MSG_OUT - WAIT DISCONNECT - INT int_norm_aborted - -#if (CHIP != 710) -; -; dsa_to_scratch -; scratch_to_dsa -; -; PURPOSE : -; The NCR chips cannot do a move memory instruction with the DSA register -; as the source or destination. So, we provide a couple of subroutines -; that let us switch between the DSA register and scratch register. -; -; Memory moves to/from the DSPS register also don't work, but we -; don't use them. -; -; - - -dsa_to_scratch: - MOVE DSA0 TO SFBR - MOVE SFBR TO SCRATCH0 - MOVE DSA1 TO SFBR - MOVE SFBR TO SCRATCH1 - MOVE DSA2 TO SFBR - MOVE SFBR TO SCRATCH2 - MOVE DSA3 TO SFBR - MOVE SFBR TO SCRATCH3 - RETURN - -scratch_to_dsa: - MOVE SCRATCH0 TO SFBR - MOVE SFBR TO DSA0 - MOVE SCRATCH1 TO SFBR - MOVE SFBR TO DSA1 - MOVE SCRATCH2 TO SFBR - MOVE SFBR TO DSA2 - MOVE SCRATCH3 TO SFBR - MOVE SFBR TO DSA3 - RETURN -#endif - -#if (CHIP == 710) -; Little patched jump, used to overcome problems with TEMP getting -; corrupted on memory moves. - -jump_temp: - JUMP 0 -#endif diff --git a/drivers/scsi/53c7xx_d.h_shipped b/drivers/scsi/53c7xx_d.h_shipped deleted file mode 100644 index 21d31b0..0000000 --- a/drivers/scsi/53c7xx_d.h_shipped +++ /dev/null @@ -1,2874 +0,0 @@ -/* DO NOT EDIT - Generated automatically by script_asm.pl */ -static u32 SCRIPT[] = { -/* - - - - - -; 53c710 driver. Modified from Drew Eckhardts driver -; for 53c810 by Richard Hirst [richard@sleepie.demon.co.uk] -; -; I have left the script for the 53c8xx family in here, as it is likely -; to be useful to see what I changed when bug hunting. - -; NCR 53c810 driver, main script -; Sponsored by -; iX Multiuser Multitasking Magazine -; hm@ix.de -; -; Copyright 1993, 1994, 1995 Drew Eckhardt -; Visionary Computing -; (Unix and Linux consulting and custom programming) -; drew@PoohSticks.ORG -; +1 (303) 786-7975 -; -; TolerANT and SCSI SCRIPTS are registered trademarks of NCR Corporation. -; -; PRE-ALPHA -; -; For more information, please consult -; -; NCR 53C810 -; PCI-SCSI I/O Processor -; Data Manual -; -; NCR 53C710 -; SCSI I/O Processor -; Programmers Guide -; -; NCR Microelectronics -; 1635 Aeroplaza Drive -; Colorado Springs, CO 80916 -; 1+ (719) 578-3400 -; -; Toll free literature number -; +1 (800) 334-5454 -; -; IMPORTANT : This code is self modifying due to the limitations of -; the NCR53c7,8xx series chips. Persons debugging this code with -; the remote debugger should take this into account, and NOT set -; breakpoints in modified instructions. -; -; Design: -; The NCR53c7,8xx family of SCSI chips are busmasters with an onboard -; microcontroller using a simple instruction set. -; -; So, to minimize the effects of interrupt latency, and to maximize -; throughput, this driver offloads the practical maximum amount -; of processing to the SCSI chip while still maintaining a common -; structure. -; -; Where tradeoffs were needed between efficiency on the older -; chips and the newer NCR53c800 series, the NCR53c800 series -; was chosen. -; -; While the NCR53c700 and NCR53c700-66 lacked the facilities to fully -; automate SCSI transfers without host processor intervention, this -; isn't the case with the NCR53c710 and newer chips which allow -; -; - reads and writes to the internal registers from within the SCSI -; scripts, allowing the SCSI SCRIPTS(tm) code to save processor -; state so that multiple threads of execution are possible, and also -; provide an ALU for loop control, etc. -; -; - table indirect addressing for some instructions. This allows -; pointers to be located relative to the DSA ((Data Structure -; Address) register. -; -; These features make it possible to implement a mailbox style interface, -; where the same piece of code is run to handle I/O for multiple threads -; at once minimizing our need to relocate code. Since the NCR53c700/ -; NCR53c800 series have a unique combination of features, making a -; a standard ingoing/outgoing mailbox system, costly, I've modified it. -; -; - Mailboxes are a mixture of code and data. This lets us greatly -; simplify the NCR53c810 code and do things that would otherwise -; not be possible. -; -; The saved data pointer is now implemented as follows : -; -; Control flow has been architected such that if control reaches -; munge_save_data_pointer, on a restore pointers message or -; reconnection, a jump to the address formerly in the TEMP register -; will allow the SCSI command to resume execution. -; - -; -; Note : the DSA structures must be aligned on 32 bit boundaries, -; since the source and destination of MOVE MEMORY instructions -; must share the same alignment and this is the alignment of the -; NCR registers. -; - -; For some systems (MVME166, for example) dmode is always the same, so don't -; waste time writing it - - - - - - - - - - - -ABSOLUTE dsa_temp_lun = 0 ; Patch to lun for current dsa -ABSOLUTE dsa_temp_next = 0 ; Patch to dsa next for current dsa -ABSOLUTE dsa_temp_addr_next = 0 ; Patch to address of dsa next address - ; for current dsa -ABSOLUTE dsa_temp_sync = 0 ; Patch to address of per-target - ; sync routine -ABSOLUTE dsa_sscf_710 = 0 ; Patch to address of per-target - ; sscf value (53c710) -ABSOLUTE dsa_temp_target = 0 ; Patch to id for current dsa -ABSOLUTE dsa_temp_addr_saved_pointer = 0; Patch to address of per-command - ; saved data pointer -ABSOLUTE dsa_temp_addr_residual = 0 ; Patch to address of per-command - ; current residual code -ABSOLUTE dsa_temp_addr_saved_residual = 0; Patch to address of per-command - ; saved residual code -ABSOLUTE dsa_temp_addr_new_value = 0 ; Address of value for JUMP operand -ABSOLUTE dsa_temp_addr_array_value = 0 ; Address to copy to -ABSOLUTE dsa_temp_addr_dsa_value = 0 ; Address of this DSA value - -; -; Once a device has initiated reselection, we need to compare it -; against the singly linked list of commands which have disconnected -; and are pending reselection. These commands are maintained in -; an unordered singly linked list of DSA structures, through the -; DSA pointers at their 'centers' headed by the reconnect_dsa_head -; pointer. -; -; To avoid complications in removing commands from the list, -; I minimize the amount of expensive (at eight operations per -; addition @ 500-600ns each) pointer operations which must -; be done in the NCR driver by precomputing them on the -; host processor during dsa structure generation. -; -; The fixed-up per DSA code knows how to recognize the nexus -; associated with the corresponding SCSI command, and modifies -; the source and destination pointers for the MOVE MEMORY -; instruction which is executed when reselected_ok is called -; to remove the command from the list. Similarly, DSA is -; loaded with the address of the next DSA structure and -; reselected_check_next is called if a failure occurs. -; -; Perhaps more concisely, the net effect of the mess is -; -; for (dsa = reconnect_dsa_head, dest = &reconnect_dsa_head, -; src = NULL; dsa; dest = &dsa->next, dsa = dsa->next) { -; src = &dsa->next; -; if (target_id == dsa->id && target_lun == dsa->lun) { -; *dest = *src; -; break; -; } -; } -; -; if (!dsa) -; error (int_err_unexpected_reselect); -; else -; longjmp (dsa->jump_resume, 0); -; -; - - -; Define DSA structure used for mailboxes -ENTRY dsa_code_template -dsa_code_template: -ENTRY dsa_code_begin -dsa_code_begin: -; RGH: Don't care about TEMP and DSA here - - MOVE MEMORY 4, dsa_temp_addr_dsa_value, addr_scratch - -at 0x00000000 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, saved_dsa - -at 0x00000003 : */ 0xc0000004,0x00000000,0x00000000, -/* - ; We are about to go and select the device, so must set SSCF bits - MOVE MEMORY 4, dsa_sscf_710, addr_scratch - -at 0x00000006 : */ 0xc0000004,0x00000000,0x00000000, -/* - - MOVE SCRATCH3 TO SFBR - -at 0x00000009 : */ 0x72370000,0x00000000, -/* - - - - MOVE SFBR TO SBCL - -at 0x0000000b : */ 0x6a0b0000,0x00000000, -/* - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x0000000d : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - CALL select - -at 0x00000010 : */ 0x88080000,0x000001f8, -/* -; Handle the phase mismatch which may have resulted from the -; MOVE FROM dsa_msgout if we returned here. The CLEAR ATN -; may or may not be necessary, and we should update script_asm.pl -; to handle multiple pieces. - CLEAR ATN - -at 0x00000012 : */ 0x60000008,0x00000000, -/* - CLEAR ACK - -at 0x00000014 : */ 0x60000040,0x00000000, -/* - -; Replace second operand with address of JUMP instruction dest operand -; in schedule table for this DSA. Becomes dsa_jump_dest in 53c7,8xx.c. -ENTRY dsa_code_fix_jump -dsa_code_fix_jump: - MOVE MEMORY 4, NOP_insn, 0 - -at 0x00000016 : */ 0xc0000004,0x00000000,0x00000000, -/* - JUMP select_done - -at 0x00000019 : */ 0x80080000,0x00000230, -/* - -; wrong_dsa loads the DSA register with the value of the dsa_next -; field. -; -wrong_dsa: - -; NOTE DSA is corrupt when we arrive here! - -; Patch the MOVE MEMORY INSTRUCTION such that -; the destination address is the address of the OLD -; next pointer. -; - MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 8 - -at 0x0000001b : */ 0xc0000004,0x00000000,0x000007ec, -/* - -; -; Move the _contents_ of the next pointer into the DSA register as -; the next I_T_L or I_T_L_Q tupple to check against the established -; nexus. -; - MOVE MEMORY 4, dsa_temp_next, addr_scratch - -at 0x0000001e : */ 0xc0000004,0x00000000,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, saved_dsa - -at 0x00000021 : */ 0xc0000004,0x00000000,0x00000000, -/* - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x00000024 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - JUMP reselected_check_next - -at 0x00000027 : */ 0x80080000,0x000006f0, -/* - -ABSOLUTE dsa_save_data_pointer = 0 -ENTRY dsa_code_save_data_pointer -dsa_code_save_data_pointer: - - ; When we get here, TEMP has been saved in jump_temp+4, DSA is corrupt - ; We MUST return with DSA correct - MOVE MEMORY 4, jump_temp+4, dsa_temp_addr_saved_pointer - -at 0x00000029 : */ 0xc0000004,0x000009c8,0x00000000, -/* -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_residual, dsa_temp_addr_saved_residual - -at 0x0000002c : */ 0xc0000018,0x00000000,0x00000000, -/* - CLEAR ACK - -at 0x0000002f : */ 0x60000040,0x00000000, -/* - - - - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x00000031 : */ 0xc0000004,0x00000000,0x00000000, -/* - JUMP jump_temp - -at 0x00000034 : */ 0x80080000,0x000009c4, -/* - -ABSOLUTE dsa_restore_pointers = 0 -ENTRY dsa_code_restore_pointers -dsa_code_restore_pointers: - - ; TEMP and DSA are corrupt when we get here, but who cares! - MOVE MEMORY 4, dsa_temp_addr_saved_pointer, jump_temp + 4 - -at 0x00000036 : */ 0xc0000004,0x00000000,0x000009c8, -/* -; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h - MOVE MEMORY 24, dsa_temp_addr_saved_residual, dsa_temp_addr_residual - -at 0x00000039 : */ 0xc0000018,0x00000000,0x00000000, -/* - CLEAR ACK - -at 0x0000003c : */ 0x60000040,0x00000000, -/* - ; Restore DSA, note we don't care about TEMP - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x0000003e : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - JUMP jump_temp - -at 0x00000041 : */ 0x80080000,0x000009c4, -/* - - -ABSOLUTE dsa_check_reselect = 0 -; dsa_check_reselect determines whether or not the current target and -; lun match the current DSA -ENTRY dsa_code_check_reselect -dsa_code_check_reselect: - - - - MOVE LCRC TO SFBR ; LCRC has our ID and his ID bits set - -at 0x00000043 : */ 0x72230000,0x00000000, -/* - JUMP REL (wrong_dsa), IF NOT dsa_temp_target, AND MASK 0x80 - -at 0x00000045 : */ 0x80848000,0x00ffff50, -/* - - - - - -; -; Hack - move to scratch first, since SFBR is not writeable -; via the CPU and hence a MOVE MEMORY instruction. -; - - MOVE MEMORY 1, reselected_identify, addr_scratch - -at 0x00000047 : */ 0xc0000001,0x00000000,0x00000000, -/* - - - ; BIG ENDIAN ON MVME16x - MOVE SCRATCH3 TO SFBR - -at 0x0000004a : */ 0x72370000,0x00000000, -/* - - - -; FIXME : we need to accommodate bit fielded and binary here for '7xx/'8xx chips -; Are you sure about that? richard@sleepie.demon.co.uk - JUMP REL (wrong_dsa), IF NOT dsa_temp_lun, AND MASK 0xf8 - -at 0x0000004c : */ 0x8084f800,0x00ffff34, -/* -; Patch the MOVE MEMORY INSTRUCTION such that -; the source address is the address of this dsa's -; next pointer. - MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 4 - -at 0x0000004e : */ 0xc0000004,0x00000000,0x000007e8, -/* - CALL reselected_ok - -at 0x00000051 : */ 0x88080000,0x00000798, -/* - -; Restore DSA following memory moves in reselected_ok -; dsa_temp_sync doesn't really care about DSA, but it has an -; optional debug INT so a valid DSA is a good idea. - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x00000053 : */ 0xc0000004,0x00000000,0x00000000, -/* - - CALL dsa_temp_sync - -at 0x00000056 : */ 0x88080000,0x00000000, -/* -; Release ACK on the IDENTIFY message _after_ we've set the synchronous -; transfer parameters! - CLEAR ACK - -at 0x00000058 : */ 0x60000040,0x00000000, -/* -; Implicitly restore pointers on reselection, so a RETURN -; will transfer control back to the right spot. - CALL REL (dsa_code_restore_pointers) - -at 0x0000005a : */ 0x88880000,0x00ffff68, -/* - RETURN - -at 0x0000005c : */ 0x90080000,0x00000000, -/* -ENTRY dsa_zero -dsa_zero: -ENTRY dsa_code_template_end -dsa_code_template_end: - -; Perform sanity check for dsa_fields_start == dsa_code_template_end - -; dsa_zero, puke. - -ABSOLUTE dsa_fields_start = 0 ; Sanity marker - ; pad 48 bytes (fix this RSN) -ABSOLUTE dsa_next = 48 ; len 4 Next DSA - ; del 4 Previous DSA address -ABSOLUTE dsa_cmnd = 56 ; len 4 Scsi_Cmnd * for this thread. -ABSOLUTE dsa_select = 60 ; len 4 Device ID, Period, Offset for - ; table indirect select -ABSOLUTE dsa_msgout = 64 ; len 8 table indirect move parameter for - ; select message -ABSOLUTE dsa_cmdout = 72 ; len 8 table indirect move parameter for - ; command -ABSOLUTE dsa_dataout = 80 ; len 4 code pointer for dataout -ABSOLUTE dsa_datain = 84 ; len 4 code pointer for datain -ABSOLUTE dsa_msgin = 88 ; len 8 table indirect move for msgin -ABSOLUTE dsa_status = 96 ; len 8 table indirect move for status byte -ABSOLUTE dsa_msgout_other = 104 ; len 8 table indirect for normal message out - ; (Synchronous transfer negotiation, etc). -ABSOLUTE dsa_end = 112 - -ABSOLUTE schedule = 0 ; Array of JUMP dsa_begin or JUMP (next), - ; terminated by a call to JUMP wait_reselect - -; Linked lists of DSA structures -ABSOLUTE reconnect_dsa_head = 0 ; Link list of DSAs which can reconnect -ABSOLUTE addr_reconnect_dsa_head = 0 ; Address of variable containing - ; address of reconnect_dsa_head - -; These select the source and destination of a MOVE MEMORY instruction -ABSOLUTE dmode_memory_to_memory = 0x0 -ABSOLUTE dmode_memory_to_ncr = 0x0 -ABSOLUTE dmode_ncr_to_memory = 0x0 - -ABSOLUTE addr_scratch = 0x0 -ABSOLUTE addr_temp = 0x0 - -ABSOLUTE saved_dsa = 0x0 -ABSOLUTE emulfly = 0x0 -ABSOLUTE addr_dsa = 0x0 - - - -; Interrupts - -; MSB indicates type -; 0 handle error condition -; 1 handle message -; 2 handle normal condition -; 3 debugging interrupt -; 4 testing interrupt -; Next byte indicates specific error - -; XXX not yet implemented, I'm not sure if I want to - -; Next byte indicates the routine the error occurred in -; The LSB indicates the specific place the error occurred - -ABSOLUTE int_err_unexpected_phase = 0x00000000 ; Unexpected phase encountered -ABSOLUTE int_err_selected = 0x00010000 ; SELECTED (nee RESELECTED) -ABSOLUTE int_err_unexpected_reselect = 0x00020000 -ABSOLUTE int_err_check_condition = 0x00030000 -ABSOLUTE int_err_no_phase = 0x00040000 -ABSOLUTE int_msg_wdtr = 0x01000000 ; WDTR message received -ABSOLUTE int_msg_sdtr = 0x01010000 ; SDTR received -ABSOLUTE int_msg_1 = 0x01020000 ; single byte special message - ; received - -ABSOLUTE int_norm_select_complete = 0x02000000 ; Select complete, reprogram - ; registers. -ABSOLUTE int_norm_reselect_complete = 0x02010000 ; Nexus established -ABSOLUTE int_norm_command_complete = 0x02020000 ; Command complete -ABSOLUTE int_norm_disconnected = 0x02030000 ; Disconnected -ABSOLUTE int_norm_aborted =0x02040000 ; Aborted *dsa -ABSOLUTE int_norm_reset = 0x02050000 ; Generated BUS reset. -ABSOLUTE int_norm_emulateintfly = 0x02060000 ; 53C710 Emulated intfly -ABSOLUTE int_debug_break = 0x03000000 ; Break point - -ABSOLUTE int_debug_panic = 0x030b0000 ; Panic driver - - -ABSOLUTE int_test_1 = 0x04000000 ; Test 1 complete -ABSOLUTE int_test_2 = 0x04010000 ; Test 2 complete -ABSOLUTE int_test_3 = 0x04020000 ; Test 3 complete - - -; These should start with 0x05000000, with low bits incrementing for -; each one. - - - -ABSOLUTE NCR53c7xx_msg_abort = 0 ; Pointer to abort message -ABSOLUTE NCR53c7xx_msg_reject = 0 ; Pointer to reject message -ABSOLUTE NCR53c7xx_zero = 0 ; long with zero in it, use for source -ABSOLUTE NCR53c7xx_sink = 0 ; long to dump worthless data in -ABSOLUTE NOP_insn = 0 ; NOP instruction - -; Pointer to message, potentially multi-byte -ABSOLUTE msg_buf = 0 - -; Pointer to holding area for reselection information -ABSOLUTE reselected_identify = 0 -ABSOLUTE reselected_tag = 0 - -; Request sense command pointer, it's a 6 byte command, should -; be constant for all commands since we always want 16 bytes of -; sense and we don't need to change any fields as we did under -; SCSI-I when we actually cared about the LUN field. -;EXTERNAL NCR53c7xx_sense ; Request sense command - - -; dsa_schedule -; PURPOSE : after a DISCONNECT message has been received, and pointers -; saved, insert the current DSA structure at the head of the -; disconnected queue and fall through to the scheduler. -; -; CALLS : OK -; -; INPUTS : dsa - current DSA structure, reconnect_dsa_head - list -; of disconnected commands -; -; MODIFIES : SCRATCH, reconnect_dsa_head -; -; EXITS : always passes control to schedule - -ENTRY dsa_schedule -dsa_schedule: - - - - -; -; Calculate the address of the next pointer within the DSA -; structure of the command that is currently disconnecting -; - - ; Read what should be the current DSA from memory - actual DSA - ; register is probably corrupt - MOVE MEMORY 4, saved_dsa, addr_scratch - -at 0x0000005e : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - MOVE SCRATCH0 + dsa_next TO SCRATCH0 - -at 0x00000061 : */ 0x7e343000,0x00000000, -/* - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - -at 0x00000063 : */ 0x7f350000,0x00000000, -/* - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - -at 0x00000065 : */ 0x7f360000,0x00000000, -/* - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - -at 0x00000067 : */ 0x7f370000,0x00000000, -/* - -; Point the next field of this DSA structure at the current disconnected -; list - - MOVE MEMORY 4, addr_scratch, dsa_schedule_insert + 8 - -at 0x00000069 : */ 0xc0000004,0x00000000,0x000001b8, -/* - -dsa_schedule_insert: - MOVE MEMORY 4, reconnect_dsa_head, 0 - -at 0x0000006c : */ 0xc0000004,0x00000000,0x00000000, -/* - -; And update the head pointer. - - ; Read what should be the current DSA from memory - actual DSA - ; register is probably corrupt - MOVE MEMORY 4, saved_dsa, addr_scratch - -at 0x0000006f : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - - MOVE MEMORY 4, addr_scratch, reconnect_dsa_head - -at 0x00000072 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - - - - CLEAR ACK - -at 0x00000075 : */ 0x60000040,0x00000000, -/* - - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x00000077 : */ 0xc0000004,0x00000000,0x00000000, -/* - - WAIT DISCONNECT - -at 0x0000007a : */ 0x48000000,0x00000000, -/* - - - - - - - JUMP schedule - -at 0x0000007c : */ 0x80080000,0x00000000, -/* - - -; -; select -; -; PURPOSE : establish a nexus for the SCSI command referenced by DSA. -; On success, the current DSA structure is removed from the issue -; queue. Usually, this is entered as a fall-through from schedule, -; although the contingent allegiance handling code will write -; the select entry address to the DSP to restart a command as a -; REQUEST SENSE. A message is sent (usually IDENTIFY, although -; additional SDTR or WDTR messages may be sent). COMMAND OUT -; is handled. -; -; INPUTS : DSA - SCSI command, issue_dsa_head -; -; CALLS : NOT OK -; -; MODIFIES : SCRATCH, issue_dsa_head -; -; EXITS : on reselection or selection, go to select_failed -; otherwise, RETURN so control is passed back to -; dsa_begin. -; - -ENTRY select -select: - - - - - - - - - CLEAR TARGET - -at 0x0000007e : */ 0x60000200,0x00000000, -/* - -; XXX -; -; In effect, SELECTION operations are backgrounded, with execution -; continuing until code which waits for REQ or a fatal interrupt is -; encountered. -; -; So, for more performance, we could overlap the code which removes -; the command from the NCRs issue queue with the selection, but -; at this point I don't want to deal with the error recovery. -; - - - - ; Enable selection timer - - - - MOVE CTEST7 & 0xef TO CTEST7 - -at 0x00000080 : */ 0x7c1bef00,0x00000000, -/* - - - SELECT ATN FROM dsa_select, select_failed - -at 0x00000082 : */ 0x4300003c,0x00000828, -/* - JUMP select_msgout, WHEN MSG_OUT - -at 0x00000084 : */ 0x860b0000,0x00000218, -/* -ENTRY select_msgout -select_msgout: - - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 - -at 0x00000086 : */ 0x7a1b1000,0x00000000, -/* - - MOVE FROM dsa_msgout, WHEN MSG_OUT - -at 0x00000088 : */ 0x1e000000,0x00000040, -/* - - - - - - - - - - - RETURN - -at 0x0000008a : */ 0x90080000,0x00000000, -/* - -; -; select_done -; -; PURPOSE: continue on to normal data transfer; called as the exit -; point from dsa_begin. -; -; INPUTS: dsa -; -; CALLS: OK -; -; - -select_done: - -; NOTE DSA is corrupt when we arrive here! - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x0000008c : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - - - - - -; After a successful selection, we should get either a CMD phase or -; some transfer request negotiation message. - - JUMP cmdout, WHEN CMD - -at 0x0000008f : */ 0x820b0000,0x0000025c, -/* - INT int_err_unexpected_phase, WHEN NOT MSG_IN - -at 0x00000091 : */ 0x9f030000,0x00000000, -/* - -select_msg_in: - CALL msg_in, WHEN MSG_IN - -at 0x00000093 : */ 0x8f0b0000,0x0000041c, -/* - JUMP select_msg_in, WHEN MSG_IN - -at 0x00000095 : */ 0x870b0000,0x0000024c, -/* - -cmdout: - INT int_err_unexpected_phase, WHEN NOT CMD - -at 0x00000097 : */ 0x9a030000,0x00000000, -/* - - - -ENTRY cmdout_cmdout -cmdout_cmdout: - - MOVE FROM dsa_cmdout, WHEN CMD - -at 0x00000099 : */ 0x1a000000,0x00000048, -/* - - - - -; -; data_transfer -; other_out -; other_in -; other_transfer -; -; PURPOSE : handle the main data transfer for a SCSI command in -; several parts. In the first part, data_transfer, DATA_IN -; and DATA_OUT phases are allowed, with the user provided -; code (usually dynamically generated based on the scatter/gather -; list associated with a SCSI command) called to handle these -; phases. -; -; After control has passed to one of the user provided -; DATA_IN or DATA_OUT routines, back calls are made to -; other_transfer_in or other_transfer_out to handle non-DATA IN -; and DATA OUT phases respectively, with the state of the active -; data pointer being preserved in TEMP. -; -; On completion, the user code passes control to other_transfer -; which causes DATA_IN and DATA_OUT to result in unexpected_phase -; interrupts so that data overruns may be trapped. -; -; INPUTS : DSA - SCSI command -; -; CALLS : OK in data_transfer_start, not ok in other_out and other_in, ok in -; other_transfer -; -; MODIFIES : SCRATCH -; -; EXITS : if STATUS IN is detected, signifying command completion, -; the NCR jumps to command_complete. If MSG IN occurs, a -; CALL is made to msg_in. Otherwise, other_transfer runs in -; an infinite loop. -; - -ENTRY data_transfer -data_transfer: - JUMP cmdout_cmdout, WHEN CMD - -at 0x0000009b : */ 0x820b0000,0x00000264, -/* - CALL msg_in, WHEN MSG_IN - -at 0x0000009d : */ 0x8f0b0000,0x0000041c, -/* - INT int_err_unexpected_phase, WHEN MSG_OUT - -at 0x0000009f : */ 0x9e0b0000,0x00000000, -/* - JUMP do_dataout, WHEN DATA_OUT - -at 0x000000a1 : */ 0x800b0000,0x000002a4, -/* - JUMP do_datain, WHEN DATA_IN - -at 0x000000a3 : */ 0x810b0000,0x000002fc, -/* - JUMP command_complete, WHEN STATUS - -at 0x000000a5 : */ 0x830b0000,0x0000065c, -/* - JUMP data_transfer - -at 0x000000a7 : */ 0x80080000,0x0000026c, -/* -ENTRY end_data_transfer -end_data_transfer: - -; -; FIXME: On NCR53c700 and NCR53c700-66 chips, do_dataout/do_datain -; should be fixed up whenever the nexus changes so it can point to the -; correct routine for that command. -; - - -; Nasty jump to dsa->dataout -do_dataout: - - MOVE MEMORY 4, saved_dsa, addr_scratch - -at 0x000000a9 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - MOVE SCRATCH0 + dsa_dataout TO SCRATCH0 - -at 0x000000ac : */ 0x7e345000,0x00000000, -/* - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - -at 0x000000ae : */ 0x7f350000,0x00000000, -/* - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - -at 0x000000b0 : */ 0x7f360000,0x00000000, -/* - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - -at 0x000000b2 : */ 0x7f370000,0x00000000, -/* - - MOVE MEMORY 4, addr_scratch, dataout_to_jump + 4 - -at 0x000000b4 : */ 0xc0000004,0x00000000,0x000002e0, -/* - -dataout_to_jump: - MOVE MEMORY 4, 0, dataout_jump + 4 - -at 0x000000b7 : */ 0xc0000004,0x00000000,0x000002f8, -/* - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x000000ba : */ 0xc0000004,0x00000000,0x00000000, -/* - -dataout_jump: - JUMP 0 - -at 0x000000bd : */ 0x80080000,0x00000000, -/* - -; Nasty jump to dsa->dsain -do_datain: - - MOVE MEMORY 4, saved_dsa, addr_scratch - -at 0x000000bf : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - MOVE SCRATCH0 + dsa_datain TO SCRATCH0 - -at 0x000000c2 : */ 0x7e345400,0x00000000, -/* - MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY - -at 0x000000c4 : */ 0x7f350000,0x00000000, -/* - MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY - -at 0x000000c6 : */ 0x7f360000,0x00000000, -/* - MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY - -at 0x000000c8 : */ 0x7f370000,0x00000000, -/* - - MOVE MEMORY 4, addr_scratch, datain_to_jump + 4 - -at 0x000000ca : */ 0xc0000004,0x00000000,0x00000338, -/* - -ENTRY datain_to_jump -datain_to_jump: - MOVE MEMORY 4, 0, datain_jump + 4 - -at 0x000000cd : */ 0xc0000004,0x00000000,0x00000350, -/* - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x000000d0 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - -datain_jump: - JUMP 0 - -at 0x000000d3 : */ 0x80080000,0x00000000, -/* - - - -; Note that other_out and other_in loop until a non-data phase -; is discovered, so we only execute return statements when we -; can go on to the next data phase block move statement. - -ENTRY other_out -other_out: - - - - INT int_err_unexpected_phase, WHEN CMD - -at 0x000000d5 : */ 0x9a0b0000,0x00000000, -/* - JUMP msg_in_restart, WHEN MSG_IN - -at 0x000000d7 : */ 0x870b0000,0x000003fc, -/* - INT int_err_unexpected_phase, WHEN MSG_OUT - -at 0x000000d9 : */ 0x9e0b0000,0x00000000, -/* - INT int_err_unexpected_phase, WHEN DATA_IN - -at 0x000000db : */ 0x990b0000,0x00000000, -/* - JUMP command_complete, WHEN STATUS - -at 0x000000dd : */ 0x830b0000,0x0000065c, -/* - JUMP other_out, WHEN NOT DATA_OUT - -at 0x000000df : */ 0x80030000,0x00000354, -/* - -; TEMP should be OK, as we got here from a call in the user dataout code. - - RETURN - -at 0x000000e1 : */ 0x90080000,0x00000000, -/* - -ENTRY other_in -other_in: - - - - INT int_err_unexpected_phase, WHEN CMD - -at 0x000000e3 : */ 0x9a0b0000,0x00000000, -/* - JUMP msg_in_restart, WHEN MSG_IN - -at 0x000000e5 : */ 0x870b0000,0x000003fc, -/* - INT int_err_unexpected_phase, WHEN MSG_OUT - -at 0x000000e7 : */ 0x9e0b0000,0x00000000, -/* - INT int_err_unexpected_phase, WHEN DATA_OUT - -at 0x000000e9 : */ 0x980b0000,0x00000000, -/* - JUMP command_complete, WHEN STATUS - -at 0x000000eb : */ 0x830b0000,0x0000065c, -/* - JUMP other_in, WHEN NOT DATA_IN - -at 0x000000ed : */ 0x81030000,0x0000038c, -/* - -; TEMP should be OK, as we got here from a call in the user datain code. - - RETURN - -at 0x000000ef : */ 0x90080000,0x00000000, -/* - - -ENTRY other_transfer -other_transfer: - INT int_err_unexpected_phase, WHEN CMD - -at 0x000000f1 : */ 0x9a0b0000,0x00000000, -/* - CALL msg_in, WHEN MSG_IN - -at 0x000000f3 : */ 0x8f0b0000,0x0000041c, -/* - INT int_err_unexpected_phase, WHEN MSG_OUT - -at 0x000000f5 : */ 0x9e0b0000,0x00000000, -/* - INT int_err_unexpected_phase, WHEN DATA_OUT - -at 0x000000f7 : */ 0x980b0000,0x00000000, -/* - INT int_err_unexpected_phase, WHEN DATA_IN - -at 0x000000f9 : */ 0x990b0000,0x00000000, -/* - JUMP command_complete, WHEN STATUS - -at 0x000000fb : */ 0x830b0000,0x0000065c, -/* - JUMP other_transfer - -at 0x000000fd : */ 0x80080000,0x000003c4, -/* - -; -; msg_in_restart -; msg_in -; munge_msg -; -; PURPOSE : process messages from a target. msg_in is called when the -; caller hasn't read the first byte of the message. munge_message -; is called when the caller has read the first byte of the message, -; and left it in SFBR. msg_in_restart is called when the caller -; hasn't read the first byte of the message, and wishes RETURN -; to transfer control back to the address of the conditional -; CALL instruction rather than to the instruction after it. -; -; Various int_* interrupts are generated when the host system -; needs to intervene, as is the case with SDTR, WDTR, and -; INITIATE RECOVERY messages. -; -; When the host system handles one of these interrupts, -; it can respond by reentering at reject_message, -; which rejects the message and returns control to -; the caller of msg_in or munge_msg, accept_message -; which clears ACK and returns control, or reply_message -; which sends the message pointed to by the DSA -; msgout_other table indirect field. -; -; DISCONNECT messages are handled by moving the command -; to the reconnect_dsa_queue. - -; NOTE: DSA should be valid when we get here - we cannot save both it -; and TEMP in this routine. - -; -; INPUTS : DSA - SCSI COMMAND, SFBR - first byte of message (munge_msg -; only) -; -; CALLS : NO. The TEMP register isn't backed up to allow nested calls. -; -; MODIFIES : SCRATCH, DSA on DISCONNECT -; -; EXITS : On receipt of SAVE DATA POINTER, RESTORE POINTERS, -; and normal return from message handlers running under -; Linux, control is returned to the caller. Receipt -; of DISCONNECT messages pass control to dsa_schedule. -; -ENTRY msg_in_restart -msg_in_restart: -; XXX - hackish -; -; Since it's easier to debug changes to the statically -; compiled code, rather than the dynamically generated -; stuff, such as -; -; MOVE x, y, WHEN data_phase -; CALL other_z, WHEN NOT data_phase -; MOVE x, y, WHEN data_phase -; -; I'd like to have certain routines (notably the message handler) -; restart on the conditional call rather than the next instruction. -; -; So, subtract 8 from the return address - - MOVE TEMP0 + 0xf8 TO TEMP0 - -at 0x000000ff : */ 0x7e1cf800,0x00000000, -/* - MOVE TEMP1 + 0xff TO TEMP1 WITH CARRY - -at 0x00000101 : */ 0x7f1dff00,0x00000000, -/* - MOVE TEMP2 + 0xff TO TEMP2 WITH CARRY - -at 0x00000103 : */ 0x7f1eff00,0x00000000, -/* - MOVE TEMP3 + 0xff TO TEMP3 WITH CARRY - -at 0x00000105 : */ 0x7f1fff00,0x00000000, -/* - -ENTRY msg_in -msg_in: - MOVE 1, msg_buf, WHEN MSG_IN - -at 0x00000107 : */ 0x0f000001,0x00000000, -/* - -munge_msg: - JUMP munge_extended, IF 0x01 ; EXTENDED MESSAGE - -at 0x00000109 : */ 0x800c0001,0x00000574, -/* - JUMP munge_2, IF 0x20, AND MASK 0xdf ; two byte message - -at 0x0000010b : */ 0x800cdf20,0x00000464, -/* -; -; XXX - I've seen a handful of broken SCSI devices which fail to issue -; a SAVE POINTERS message before disconnecting in the middle of -; a transfer, assuming that the DATA POINTER will be implicitly -; restored. -; -; Historically, I've often done an implicit save when the DISCONNECT -; message is processed. We may want to consider having the option of -; doing that here. -; - JUMP munge_save_data_pointer, IF 0x02 ; SAVE DATA POINTER - -at 0x0000010d : */ 0x800c0002,0x0000046c, -/* - JUMP munge_restore_pointers, IF 0x03 ; RESTORE POINTERS - -at 0x0000010f : */ 0x800c0003,0x00000518, -/* - JUMP munge_disconnect, IF 0x04 ; DISCONNECT - -at 0x00000111 : */ 0x800c0004,0x0000056c, -/* - INT int_msg_1, IF 0x07 ; MESSAGE REJECT - -at 0x00000113 : */ 0x980c0007,0x01020000, -/* - INT int_msg_1, IF 0x0f ; INITIATE RECOVERY - -at 0x00000115 : */ 0x980c000f,0x01020000, -/* - - - - JUMP reject_message - -at 0x00000117 : */ 0x80080000,0x00000604, -/* - -munge_2: - JUMP reject_message - -at 0x00000119 : */ 0x80080000,0x00000604, -/* -; -; The SCSI standard allows targets to recover from transient -; error conditions by backing up the data pointer with a -; RESTORE POINTERS message. -; -; So, we must save and restore the _residual_ code as well as -; the current instruction pointer. Because of this messiness, -; it is simpler to put dynamic code in the dsa for this and to -; just do a simple jump down there. -; - -munge_save_data_pointer: - - ; We have something in TEMP here, so first we must save that - MOVE TEMP0 TO SFBR - -at 0x0000011b : */ 0x721c0000,0x00000000, -/* - MOVE SFBR TO SCRATCH0 - -at 0x0000011d : */ 0x6a340000,0x00000000, -/* - MOVE TEMP1 TO SFBR - -at 0x0000011f : */ 0x721d0000,0x00000000, -/* - MOVE SFBR TO SCRATCH1 - -at 0x00000121 : */ 0x6a350000,0x00000000, -/* - MOVE TEMP2 TO SFBR - -at 0x00000123 : */ 0x721e0000,0x00000000, -/* - MOVE SFBR TO SCRATCH2 - -at 0x00000125 : */ 0x6a360000,0x00000000, -/* - MOVE TEMP3 TO SFBR - -at 0x00000127 : */ 0x721f0000,0x00000000, -/* - MOVE SFBR TO SCRATCH3 - -at 0x00000129 : */ 0x6a370000,0x00000000, -/* - MOVE MEMORY 4, addr_scratch, jump_temp + 4 - -at 0x0000012b : */ 0xc0000004,0x00000000,0x000009c8, -/* - ; Now restore DSA - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x0000012e : */ 0xc0000004,0x00000000,0x00000000, -/* - - MOVE DSA0 + dsa_save_data_pointer TO SFBR - -at 0x00000131 : */ 0x76100000,0x00000000, -/* - MOVE SFBR TO SCRATCH0 - -at 0x00000133 : */ 0x6a340000,0x00000000, -/* - MOVE DSA1 + 0xff TO SFBR WITH CARRY - -at 0x00000135 : */ 0x7711ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH1 - -at 0x00000137 : */ 0x6a350000,0x00000000, -/* - MOVE DSA2 + 0xff TO SFBR WITH CARRY - -at 0x00000139 : */ 0x7712ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH2 - -at 0x0000013b : */ 0x6a360000,0x00000000, -/* - MOVE DSA3 + 0xff TO SFBR WITH CARRY - -at 0x0000013d : */ 0x7713ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH3 - -at 0x0000013f : */ 0x6a370000,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, jump_dsa_save + 4 - -at 0x00000141 : */ 0xc0000004,0x00000000,0x00000514, -/* - -jump_dsa_save: - JUMP 0 - -at 0x00000144 : */ 0x80080000,0x00000000, -/* - -munge_restore_pointers: - - ; The code at dsa_restore_pointers will RETURN, but we don't care - ; about TEMP here, as it will overwrite it anyway. - - MOVE DSA0 + dsa_restore_pointers TO SFBR - -at 0x00000146 : */ 0x76100000,0x00000000, -/* - MOVE SFBR TO SCRATCH0 - -at 0x00000148 : */ 0x6a340000,0x00000000, -/* - MOVE DSA1 + 0xff TO SFBR WITH CARRY - -at 0x0000014a : */ 0x7711ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH1 - -at 0x0000014c : */ 0x6a350000,0x00000000, -/* - MOVE DSA2 + 0xff TO SFBR WITH CARRY - -at 0x0000014e : */ 0x7712ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH2 - -at 0x00000150 : */ 0x6a360000,0x00000000, -/* - MOVE DSA3 + 0xff TO SFBR WITH CARRY - -at 0x00000152 : */ 0x7713ff00,0x00000000, -/* - MOVE SFBR TO SCRATCH3 - -at 0x00000154 : */ 0x6a370000,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, jump_dsa_restore + 4 - -at 0x00000156 : */ 0xc0000004,0x00000000,0x00000568, -/* - -jump_dsa_restore: - JUMP 0 - -at 0x00000159 : */ 0x80080000,0x00000000, -/* - - -munge_disconnect: - - - - - - - - - - - - - - - - - - - - - JUMP dsa_schedule - -at 0x0000015b : */ 0x80080000,0x00000178, -/* - - - - - -munge_extended: - CLEAR ACK - -at 0x0000015d : */ 0x60000040,0x00000000, -/* - INT int_err_unexpected_phase, WHEN NOT MSG_IN - -at 0x0000015f : */ 0x9f030000,0x00000000, -/* - MOVE 1, msg_buf + 1, WHEN MSG_IN - -at 0x00000161 : */ 0x0f000001,0x00000001, -/* - JUMP munge_extended_2, IF 0x02 - -at 0x00000163 : */ 0x800c0002,0x000005a4, -/* - JUMP munge_extended_3, IF 0x03 - -at 0x00000165 : */ 0x800c0003,0x000005d4, -/* - JUMP reject_message - -at 0x00000167 : */ 0x80080000,0x00000604, -/* - -munge_extended_2: - CLEAR ACK - -at 0x00000169 : */ 0x60000040,0x00000000, -/* - MOVE 1, msg_buf + 2, WHEN MSG_IN - -at 0x0000016b : */ 0x0f000001,0x00000002, -/* - JUMP reject_message, IF NOT 0x02 ; Must be WDTR - -at 0x0000016d : */ 0x80040002,0x00000604, -/* - CLEAR ACK - -at 0x0000016f : */ 0x60000040,0x00000000, -/* - MOVE 1, msg_buf + 3, WHEN MSG_IN - -at 0x00000171 : */ 0x0f000001,0x00000003, -/* - INT int_msg_wdtr - -at 0x00000173 : */ 0x98080000,0x01000000, -/* - -munge_extended_3: - CLEAR ACK - -at 0x00000175 : */ 0x60000040,0x00000000, -/* - MOVE 1, msg_buf + 2, WHEN MSG_IN - -at 0x00000177 : */ 0x0f000001,0x00000002, -/* - JUMP reject_message, IF NOT 0x01 ; Must be SDTR - -at 0x00000179 : */ 0x80040001,0x00000604, -/* - CLEAR ACK - -at 0x0000017b : */ 0x60000040,0x00000000, -/* - MOVE 2, msg_buf + 3, WHEN MSG_IN - -at 0x0000017d : */ 0x0f000002,0x00000003, -/* - INT int_msg_sdtr - -at 0x0000017f : */ 0x98080000,0x01010000, -/* - -ENTRY reject_message -reject_message: - SET ATN - -at 0x00000181 : */ 0x58000008,0x00000000, -/* - CLEAR ACK - -at 0x00000183 : */ 0x60000040,0x00000000, -/* - MOVE 1, NCR53c7xx_msg_reject, WHEN MSG_OUT - -at 0x00000185 : */ 0x0e000001,0x00000000, -/* - RETURN - -at 0x00000187 : */ 0x90080000,0x00000000, -/* - -ENTRY accept_message -accept_message: - CLEAR ATN - -at 0x00000189 : */ 0x60000008,0x00000000, -/* - CLEAR ACK - -at 0x0000018b : */ 0x60000040,0x00000000, -/* - RETURN - -at 0x0000018d : */ 0x90080000,0x00000000, -/* - -ENTRY respond_message -respond_message: - SET ATN - -at 0x0000018f : */ 0x58000008,0x00000000, -/* - CLEAR ACK - -at 0x00000191 : */ 0x60000040,0x00000000, -/* - MOVE FROM dsa_msgout_other, WHEN MSG_OUT - -at 0x00000193 : */ 0x1e000000,0x00000068, -/* - RETURN - -at 0x00000195 : */ 0x90080000,0x00000000, -/* - -; -; command_complete -; -; PURPOSE : handle command termination when STATUS IN is detected by reading -; a status byte followed by a command termination message. -; -; Normal termination results in an INTFLY instruction, and -; the host system can pick out which command terminated by -; examining the MESSAGE and STATUS buffers of all currently -; executing commands; -; -; Abnormal (CHECK_CONDITION) termination results in an -; int_err_check_condition interrupt so that a REQUEST SENSE -; command can be issued out-of-order so that no other command -; clears the contingent allegiance condition. -; -; -; INPUTS : DSA - command -; -; CALLS : OK -; -; EXITS : On successful termination, control is passed to schedule. -; On abnormal termination, the user will usually modify the -; DSA fields and corresponding buffers and return control -; to select. -; - -ENTRY command_complete -command_complete: - MOVE FROM dsa_status, WHEN STATUS - -at 0x00000197 : */ 0x1b000000,0x00000060, -/* - - MOVE SFBR TO SCRATCH0 ; Save status - -at 0x00000199 : */ 0x6a340000,0x00000000, -/* - -ENTRY command_complete_msgin -command_complete_msgin: - MOVE FROM dsa_msgin, WHEN MSG_IN - -at 0x0000019b : */ 0x1f000000,0x00000058, -/* -; Indicate that we should be expecting a disconnect - - - - ; Above code cleared the Unexpected Disconnect bit, what do we do? - - CLEAR ACK - -at 0x0000019d : */ 0x60000040,0x00000000, -/* - - WAIT DISCONNECT - -at 0x0000019f : */ 0x48000000,0x00000000, -/* - -; -; The SCSI specification states that when a UNIT ATTENTION condition -; is pending, as indicated by a CHECK CONDITION status message, -; the target shall revert to asynchronous transfers. Since -; synchronous transfers parameters are maintained on a per INITIATOR/TARGET -; basis, and returning control to our scheduler could work on a command -; running on another lun on that target using the old parameters, we must -; interrupt the host processor to get them changed, or change them ourselves. -; -; Once SCSI-II tagged queueing is implemented, things will be even more -; hairy, since contingent allegiance conditions exist on a per-target/lun -; basis, and issuing a new command with a different tag would clear it. -; In these cases, we must interrupt the host processor to get a request -; added to the HEAD of the queue with the request sense command, or we -; must automatically issue the request sense command. - - - - - - - - INT int_norm_emulateintfly - -at 0x000001a1 : */ 0x98080000,0x02060000, -/* - - - - - - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x000001a3 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - - - JUMP schedule - -at 0x000001a6 : */ 0x80080000,0x00000000, -/* -command_failed: - INT int_err_check_condition - -at 0x000001a8 : */ 0x98080000,0x00030000, -/* - - - - -; -; wait_reselect -; -; PURPOSE : This is essentially the idle routine, where control lands -; when there are no new processes to schedule. wait_reselect -; waits for reselection, selection, and new commands. -; -; When a successful reselection occurs, with the aid -; of fixed up code in each DSA, wait_reselect walks the -; reconnect_dsa_queue, asking each dsa if the target ID -; and LUN match its. -; -; If a match is found, a call is made back to reselected_ok, -; which through the miracles of self modifying code, extracts -; the found DSA from the reconnect_dsa_queue and then -; returns control to the DSAs thread of execution. -; -; INPUTS : NONE -; -; CALLS : OK -; -; MODIFIES : DSA, -; -; EXITS : On successful reselection, control is returned to the -; DSA which called reselected_ok. If the WAIT RESELECT -; was interrupted by a new commands arrival signaled by -; SIG_P, control is passed to schedule. If the NCR is -; selected, the host system is interrupted with an -; int_err_selected which is usually responded to by -; setting DSP to the target_abort address. - -ENTRY wait_reselect -wait_reselect: - - - - - - - WAIT RESELECT wait_reselect_failed - -at 0x000001aa : */ 0x50000000,0x00000800, -/* - -reselected: - - - - CLEAR TARGET - -at 0x000001ac : */ 0x60000200,0x00000000, -/* - - ; Read all data needed to reestablish the nexus - - MOVE 1, reselected_identify, WHEN MSG_IN - -at 0x000001ae : */ 0x0f000001,0x00000000, -/* - ; We used to CLEAR ACK here. - - - - - - ; Point DSA at the current head of the disconnected queue. - - MOVE MEMORY 4, reconnect_dsa_head, addr_scratch - -at 0x000001b0 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, saved_dsa - -at 0x000001b3 : */ 0xc0000004,0x00000000,0x00000000, -/* - - - - - ; Fix the update-next pointer so that the reconnect_dsa_head - ; pointer is the one that will be updated if this DSA is a hit - ; and we remove it from the queue. - - MOVE MEMORY 4, addr_reconnect_dsa_head, reselected_ok_patch + 8 - -at 0x000001b6 : */ 0xc0000004,0x00000000,0x000007ec, -/* - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x000001b9 : */ 0xc0000004,0x00000000,0x00000000, -/* - - -ENTRY reselected_check_next -reselected_check_next: - - - - ; Check for a NULL pointer. - MOVE DSA0 TO SFBR - -at 0x000001bc : */ 0x72100000,0x00000000, -/* - JUMP reselected_not_end, IF NOT 0 - -at 0x000001be : */ 0x80040000,0x00000738, -/* - MOVE DSA1 TO SFBR - -at 0x000001c0 : */ 0x72110000,0x00000000, -/* - JUMP reselected_not_end, IF NOT 0 - -at 0x000001c2 : */ 0x80040000,0x00000738, -/* - MOVE DSA2 TO SFBR - -at 0x000001c4 : */ 0x72120000,0x00000000, -/* - JUMP reselected_not_end, IF NOT 0 - -at 0x000001c6 : */ 0x80040000,0x00000738, -/* - MOVE DSA3 TO SFBR - -at 0x000001c8 : */ 0x72130000,0x00000000, -/* - JUMP reselected_not_end, IF NOT 0 - -at 0x000001ca : */ 0x80040000,0x00000738, -/* - INT int_err_unexpected_reselect - -at 0x000001cc : */ 0x98080000,0x00020000, -/* - -reselected_not_end: - ; - ; XXX the ALU is only eight bits wide, and the assembler - ; wont do the dirt work for us. As long as dsa_check_reselect - ; is negative, we need to sign extend with 1 bits to the full - ; 32 bit width of the address. - ; - ; A potential work around would be to have a known alignment - ; of the DSA structure such that the base address plus - ; dsa_check_reselect doesn't require carrying from bytes - ; higher than the LSB. - ; - - MOVE DSA0 TO SFBR - -at 0x000001ce : */ 0x72100000,0x00000000, -/* - MOVE SFBR + dsa_check_reselect TO SCRATCH0 - -at 0x000001d0 : */ 0x6e340000,0x00000000, -/* - MOVE DSA1 TO SFBR - -at 0x000001d2 : */ 0x72110000,0x00000000, -/* - MOVE SFBR + 0xff TO SCRATCH1 WITH CARRY - -at 0x000001d4 : */ 0x6f35ff00,0x00000000, -/* - MOVE DSA2 TO SFBR - -at 0x000001d6 : */ 0x72120000,0x00000000, -/* - MOVE SFBR + 0xff TO SCRATCH2 WITH CARRY - -at 0x000001d8 : */ 0x6f36ff00,0x00000000, -/* - MOVE DSA3 TO SFBR - -at 0x000001da : */ 0x72130000,0x00000000, -/* - MOVE SFBR + 0xff TO SCRATCH3 WITH CARRY - -at 0x000001dc : */ 0x6f37ff00,0x00000000, -/* - - - MOVE MEMORY 4, addr_scratch, reselected_check + 4 - -at 0x000001de : */ 0xc0000004,0x00000000,0x00000794, -/* - - - ; Time to correct DSA following memory move - MOVE MEMORY 4, saved_dsa, addr_dsa - -at 0x000001e1 : */ 0xc0000004,0x00000000,0x00000000, -/* - -reselected_check: - JUMP 0 - -at 0x000001e4 : */ 0x80080000,0x00000000, -/* - - -; -; - -; We have problems here - the memory move corrupts TEMP and DSA. This -; routine is called from DSA code, and patched from many places. Scratch -; is probably free when it is called. -; We have to: -; copy temp to scratch, one byte at a time -; write scratch to patch a jump in place of the return -; do the move memory -; jump to the patched in return address -; DSA is corrupt when we get here, and can be left corrupt - -ENTRY reselected_ok -reselected_ok: - MOVE TEMP0 TO SFBR - -at 0x000001e6 : */ 0x721c0000,0x00000000, -/* - MOVE SFBR TO SCRATCH0 - -at 0x000001e8 : */ 0x6a340000,0x00000000, -/* - MOVE TEMP1 TO SFBR - -at 0x000001ea : */ 0x721d0000,0x00000000, -/* - MOVE SFBR TO SCRATCH1 - -at 0x000001ec : */ 0x6a350000,0x00000000, -/* - MOVE TEMP2 TO SFBR - -at 0x000001ee : */ 0x721e0000,0x00000000, -/* - MOVE SFBR TO SCRATCH2 - -at 0x000001f0 : */ 0x6a360000,0x00000000, -/* - MOVE TEMP3 TO SFBR - -at 0x000001f2 : */ 0x721f0000,0x00000000, -/* - MOVE SFBR TO SCRATCH3 - -at 0x000001f4 : */ 0x6a370000,0x00000000, -/* - MOVE MEMORY 4, addr_scratch, reselected_ok_jump + 4 - -at 0x000001f6 : */ 0xc0000004,0x00000000,0x000007f4, -/* -reselected_ok_patch: - MOVE MEMORY 4, 0, 0 - -at 0x000001f9 : */ 0xc0000004,0x00000000,0x00000000, -/* -reselected_ok_jump: - JUMP 0 - -at 0x000001fc : */ 0x80080000,0x00000000, -/* - - - - - -selected: - INT int_err_selected; - -at 0x000001fe : */ 0x98080000,0x00010000, -/* - -; -; A select or reselect failure can be caused by one of two conditions : -; 1. SIG_P was set. This will be the case if the user has written -; a new value to a previously NULL head of the issue queue. -; -; 2. The NCR53c810 was selected or reselected by another device. -; -; 3. The bus was already busy since we were selected or reselected -; before starting the command. - -wait_reselect_failed: - - - -; Check selected bit. - - ; Must work out how to tell if we are selected.... - - - - -; Reading CTEST2 clears the SIG_P bit in the ISTAT register. - MOVE CTEST2 & 0x40 TO SFBR - -at 0x00000200 : */ 0x74164000,0x00000000, -/* - JUMP schedule, IF 0x40 - -at 0x00000202 : */ 0x800c0040,0x00000000, -/* -; Check connected bit. -; FIXME: this needs to change if we support target mode - MOVE ISTAT & 0x08 TO SFBR - -at 0x00000204 : */ 0x74210800,0x00000000, -/* - JUMP reselected, IF 0x08 - -at 0x00000206 : */ 0x800c0008,0x000006b0, -/* -; FIXME : Something bogus happened, and we shouldn't fail silently. - - - - INT int_debug_panic - -at 0x00000208 : */ 0x98080000,0x030b0000, -/* - - - -select_failed: - - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 - -at 0x0000020a : */ 0x7a1b1000,0x00000000, -/* - - - - -; Otherwise, mask the selected and reselected bits off SIST0 - - ; Let's assume we don't get selected for now - MOVE SSTAT0 & 0x10 TO SFBR - -at 0x0000020c : */ 0x740d1000,0x00000000, -/* - - - - - JUMP reselected, IF 0x10 - -at 0x0000020e : */ 0x800c0010,0x000006b0, -/* -; If SIGP is set, the user just gave us another command, and -; we should restart or return to the scheduler. -; Reading CTEST2 clears the SIG_P bit in the ISTAT register. - MOVE CTEST2 & 0x40 TO SFBR - -at 0x00000210 : */ 0x74164000,0x00000000, -/* - JUMP select, IF 0x40 - -at 0x00000212 : */ 0x800c0040,0x000001f8, -/* -; Check connected bit. -; FIXME: this needs to change if we support target mode -; FIXME: is this really necessary? - MOVE ISTAT & 0x08 TO SFBR - -at 0x00000214 : */ 0x74210800,0x00000000, -/* - JUMP reselected, IF 0x08 - -at 0x00000216 : */ 0x800c0008,0x000006b0, -/* -; FIXME : Something bogus happened, and we shouldn't fail silently. - - - - INT int_debug_panic - -at 0x00000218 : */ 0x98080000,0x030b0000, -/* - - -; -; test_1 -; test_2 -; -; PURPOSE : run some verification tests on the NCR. test_1 -; copies test_src to test_dest and interrupts the host -; processor, testing for cache coherency and interrupt -; problems in the processes. -; -; test_2 runs a command with offsets relative to the -; DSA on entry, and is useful for miscellaneous experimentation. -; - -; Verify that interrupts are working correctly and that we don't -; have a cache invalidation problem. - -ABSOLUTE test_src = 0, test_dest = 0 -ENTRY test_1 -test_1: - MOVE MEMORY 4, test_src, test_dest - -at 0x0000021a : */ 0xc0000004,0x00000000,0x00000000, -/* - INT int_test_1 - -at 0x0000021d : */ 0x98080000,0x04000000, -/* - -; -; Run arbitrary commands, with test code establishing a DSA -; - -ENTRY test_2 -test_2: - CLEAR TARGET - -at 0x0000021f : */ 0x60000200,0x00000000, -/* - - ; Enable selection timer - - - - MOVE CTEST7 & 0xef TO CTEST7 - -at 0x00000221 : */ 0x7c1bef00,0x00000000, -/* - - - SELECT ATN FROM 0, test_2_fail - -at 0x00000223 : */ 0x43000000,0x000008dc, -/* - JUMP test_2_msgout, WHEN MSG_OUT - -at 0x00000225 : */ 0x860b0000,0x0000089c, -/* -ENTRY test_2_msgout -test_2_msgout: - - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 - -at 0x00000227 : */ 0x7a1b1000,0x00000000, -/* - - MOVE FROM 8, WHEN MSG_OUT - -at 0x00000229 : */ 0x1e000000,0x00000008, -/* - MOVE FROM 16, WHEN CMD - -at 0x0000022b : */ 0x1a000000,0x00000010, -/* - MOVE FROM 24, WHEN DATA_IN - -at 0x0000022d : */ 0x19000000,0x00000018, -/* - MOVE FROM 32, WHEN STATUS - -at 0x0000022f : */ 0x1b000000,0x00000020, -/* - MOVE FROM 40, WHEN MSG_IN - -at 0x00000231 : */ 0x1f000000,0x00000028, -/* - - - - CLEAR ACK - -at 0x00000233 : */ 0x60000040,0x00000000, -/* - WAIT DISCONNECT - -at 0x00000235 : */ 0x48000000,0x00000000, -/* -test_2_fail: - - ; Disable selection timer - MOVE CTEST7 | 0x10 TO CTEST7 - -at 0x00000237 : */ 0x7a1b1000,0x00000000, -/* - - INT int_test_2 - -at 0x00000239 : */ 0x98080000,0x04010000, -/* - -ENTRY debug_break -debug_break: - INT int_debug_break - -at 0x0000023b : */ 0x98080000,0x03000000, -/* - -; -; initiator_abort -; target_abort -; -; PURPOSE : Abort the currently established nexus from with initiator -; or target mode. -; -; - -ENTRY target_abort -target_abort: - SET TARGET - -at 0x0000023d : */ 0x58000200,0x00000000, -/* - DISCONNECT - -at 0x0000023f : */ 0x48000000,0x00000000, -/* - CLEAR TARGET - -at 0x00000241 : */ 0x60000200,0x00000000, -/* - JUMP schedule - -at 0x00000243 : */ 0x80080000,0x00000000, -/* - -ENTRY initiator_abort -initiator_abort: - SET ATN - -at 0x00000245 : */ 0x58000008,0x00000000, -/* -; -; The SCSI-I specification says that targets may go into MSG out at -; their leisure upon receipt of the ATN single. On all versions of the -; specification, we can't change phases until REQ transitions true->false, -; so we need to sink/source one byte of data to allow the transition. -; -; For the sake of safety, we'll only source one byte of data in all -; cases, but to accommodate the SCSI-I dain bramage, we'll sink an -; arbitrary number of bytes. - JUMP spew_cmd, WHEN CMD - -at 0x00000247 : */ 0x820b0000,0x0000094c, -/* - JUMP eat_msgin, WHEN MSG_IN - -at 0x00000249 : */ 0x870b0000,0x0000095c, -/* - JUMP eat_datain, WHEN DATA_IN - -at 0x0000024b : */ 0x810b0000,0x0000098c, -/* - JUMP eat_status, WHEN STATUS - -at 0x0000024d : */ 0x830b0000,0x00000974, -/* - JUMP spew_dataout, WHEN DATA_OUT - -at 0x0000024f : */ 0x800b0000,0x000009a4, -/* - JUMP sated - -at 0x00000251 : */ 0x80080000,0x000009ac, -/* -spew_cmd: - MOVE 1, NCR53c7xx_zero, WHEN CMD - -at 0x00000253 : */ 0x0a000001,0x00000000, -/* - JUMP sated - -at 0x00000255 : */ 0x80080000,0x000009ac, -/* -eat_msgin: - MOVE 1, NCR53c7xx_sink, WHEN MSG_IN - -at 0x00000257 : */ 0x0f000001,0x00000000, -/* - JUMP eat_msgin, WHEN MSG_IN - -at 0x00000259 : */ 0x870b0000,0x0000095c, -/* - JUMP sated - -at 0x0000025b : */ 0x80080000,0x000009ac, -/* -eat_status: - MOVE 1, NCR53c7xx_sink, WHEN STATUS - -at 0x0000025d : */ 0x0b000001,0x00000000, -/* - JUMP eat_status, WHEN STATUS - -at 0x0000025f : */ 0x830b0000,0x00000974, -/* - JUMP sated - -at 0x00000261 : */ 0x80080000,0x000009ac, -/* -eat_datain: - MOVE 1, NCR53c7xx_sink, WHEN DATA_IN - -at 0x00000263 : */ 0x09000001,0x00000000, -/* - JUMP eat_datain, WHEN DATA_IN - -at 0x00000265 : */ 0x810b0000,0x0000098c, -/* - JUMP sated - -at 0x00000267 : */ 0x80080000,0x000009ac, -/* -spew_dataout: - MOVE 1, NCR53c7xx_zero, WHEN DATA_OUT - -at 0x00000269 : */ 0x08000001,0x00000000, -/* -sated: - - - - MOVE 1, NCR53c7xx_msg_abort, WHEN MSG_OUT - -at 0x0000026b : */ 0x0e000001,0x00000000, -/* - WAIT DISCONNECT - -at 0x0000026d : */ 0x48000000,0x00000000, -/* - INT int_norm_aborted - -at 0x0000026f : */ 0x98080000,0x02040000, -/* - - - - -; Little patched jump, used to overcome problems with TEMP getting -; corrupted on memory moves. - -jump_temp: - JUMP 0 - -at 0x00000271 : */ 0x80080000,0x00000000, -}; - -#define A_NCR53c7xx_msg_abort 0x00000000 -static u32 A_NCR53c7xx_msg_abort_used[] __attribute((unused)) = { - 0x0000026c, -}; - -#define A_NCR53c7xx_msg_reject 0x00000000 -static u32 A_NCR53c7xx_msg_reject_used[] __attribute((unused)) = { - 0x00000186, -}; - -#define A_NCR53c7xx_sink 0x00000000 -static u32 A_NCR53c7xx_sink_used[] __attribute((unused)) = { - 0x00000258, - 0x0000025e, - 0x00000264, -}; - -#define A_NCR53c7xx_zero 0x00000000 -static u32 A_NCR53c7xx_zero_used[] __attribute((unused)) = { - 0x00000254, - 0x0000026a, -}; - -#define A_NOP_insn 0x00000000 -static u32 A_NOP_insn_used[] __attribute((unused)) = { - 0x00000017, -}; - -#define A_addr_dsa 0x00000000 -static u32 A_addr_dsa_used[] __attribute((unused)) = { - 0x0000000f, - 0x00000026, - 0x00000033, - 0x00000040, - 0x00000055, - 0x00000079, - 0x0000008e, - 0x000000bc, - 0x000000d2, - 0x00000130, - 0x000001a5, - 0x000001bb, - 0x000001e3, -}; - -#define A_addr_reconnect_dsa_head 0x00000000 -static u32 A_addr_reconnect_dsa_head_used[] __attribute((unused)) = { - 0x000001b7, -}; - -#define A_addr_scratch 0x00000000 -static u32 A_addr_scratch_used[] __attribute((unused)) = { - 0x00000002, - 0x00000004, - 0x00000008, - 0x00000020, - 0x00000022, - 0x00000049, - 0x00000060, - 0x0000006a, - 0x00000071, - 0x00000073, - 0x000000ab, - 0x000000b5, - 0x000000c1, - 0x000000cb, - 0x0000012c, - 0x00000142, - 0x00000157, - 0x000001b2, - 0x000001b4, - 0x000001df, - 0x000001f7, -}; - -#define A_addr_temp 0x00000000 -static u32 A_addr_temp_used[] __attribute((unused)) = { -}; - -#define A_dmode_memory_to_memory 0x00000000 -static u32 A_dmode_memory_to_memory_used[] __attribute((unused)) = { -}; - -#define A_dmode_memory_to_ncr 0x00000000 -static u32 A_dmode_memory_to_ncr_used[] __attribute((unused)) = { -}; - -#define A_dmode_ncr_to_memory 0x00000000 -static u32 A_dmode_ncr_to_memory_used[] __attribute((unused)) = { -}; - -#define A_dsa_check_reselect 0x00000000 -static u32 A_dsa_check_reselect_used[] __attribute((unused)) = { - 0x000001d0, -}; - -#define A_dsa_cmdout 0x00000048 -static u32 A_dsa_cmdout_used[] __attribute((unused)) = { - 0x0000009a, -}; - -#define A_dsa_cmnd 0x00000038 -static u32 A_dsa_cmnd_used[] __attribute((unused)) = { -}; - -#define A_dsa_datain 0x00000054 -static u32 A_dsa_datain_used[] __attribute((unused)) = { - 0x000000c2, -}; - -#define A_dsa_dataout 0x00000050 -static u32 A_dsa_dataout_used[] __attribute((unused)) = { - 0x000000ac, -}; - -#define A_dsa_end 0x00000070 -static u32 A_dsa_end_used[] __attribute((unused)) = { -}; - -#define A_dsa_fields_start 0x00000000 -static u32 A_dsa_fields_start_used[] __attribute((unused)) = { -}; - -#define A_dsa_msgin 0x00000058 -static u32 A_dsa_msgin_used[] __attribute((unused)) = { - 0x0000019c, -}; - -#define A_dsa_msgout 0x00000040 -static u32 A_dsa_msgout_used[] __attribute((unused)) = { - 0x00000089, -}; - -#define A_dsa_msgout_other 0x00000068 -static u32 A_dsa_msgout_other_used[] __attribute((unused)) = { - 0x00000194, -}; - -#define A_dsa_next 0x00000030 -static u32 A_dsa_next_used[] __attribute((unused)) = { - 0x00000061, -}; - -#define A_dsa_restore_pointers 0x00000000 -static u32 A_dsa_restore_pointers_used[] __attribute((unused)) = { - 0x00000146, -}; - -#define A_dsa_save_data_pointer 0x00000000 -static u32 A_dsa_save_data_pointer_used[] __attribute((unused)) = { - 0x00000131, -}; - -#define A_dsa_select 0x0000003c -static u32 A_dsa_select_used[] __attribute((unused)) = { - 0x00000082, -}; - -#define A_dsa_sscf_710 0x00000000 -static u32 A_dsa_sscf_710_used[] __attribute((unused)) = { - 0x00000007, -}; - -#define A_dsa_status 0x00000060 -static u32 A_dsa_status_used[] __attribute((unused)) = { - 0x00000198, -}; - -#define A_dsa_temp_addr_array_value 0x00000000 -static u32 A_dsa_temp_addr_array_value_used[] __attribute((unused)) = { -}; - -#define A_dsa_temp_addr_dsa_value 0x00000000 -static u32 A_dsa_temp_addr_dsa_value_used[] __attribute((unused)) = { - 0x00000001, -}; - -#define A_dsa_temp_addr_new_value 0x00000000 -static u32 A_dsa_temp_addr_new_value_used[] __attribute((unused)) = { -}; - -#define A_dsa_temp_addr_next 0x00000000 -static u32 A_dsa_temp_addr_next_used[] __attribute((unused)) = { - 0x0000001c, - 0x0000004f, -}; - -#define A_dsa_temp_addr_residual 0x00000000 -static u32 A_dsa_temp_addr_residual_used[] __attribute((unused)) = { - 0x0000002d, - 0x0000003b, -}; - -#define A_dsa_temp_addr_saved_pointer 0x00000000 -static u32 A_dsa_temp_addr_saved_pointer_used[] __attribute((unused)) = { - 0x0000002b, - 0x00000037, -}; - -#define A_dsa_temp_addr_saved_residual 0x00000000 -static u32 A_dsa_temp_addr_saved_residual_used[] __attribute((unused)) = { - 0x0000002e, - 0x0000003a, -}; - -#define A_dsa_temp_lun 0x00000000 -static u32 A_dsa_temp_lun_used[] __attribute((unused)) = { - 0x0000004c, -}; - -#define A_dsa_temp_next 0x00000000 -static u32 A_dsa_temp_next_used[] __attribute((unused)) = { - 0x0000001f, -}; - -#define A_dsa_temp_sync 0x00000000 -static u32 A_dsa_temp_sync_used[] __attribute((unused)) = { - 0x00000057, -}; - -#define A_dsa_temp_target 0x00000000 -static u32 A_dsa_temp_target_used[] __attribute((unused)) = { - 0x00000045, -}; - -#define A_emulfly 0x00000000 -static u32 A_emulfly_used[] __attribute((unused)) = { -}; - -#define A_int_debug_break 0x03000000 -static u32 A_int_debug_break_used[] __attribute((unused)) = { - 0x0000023c, -}; - -#define A_int_debug_panic 0x030b0000 -static u32 A_int_debug_panic_used[] __attribute((unused)) = { - 0x00000209, - 0x00000219, -}; - -#define A_int_err_check_condition 0x00030000 -static u32 A_int_err_check_condition_used[] __attribute((unused)) = { - 0x000001a9, -}; - -#define A_int_err_no_phase 0x00040000 -static u32 A_int_err_no_phase_used[] __attribute((unused)) = { -}; - -#define A_int_err_selected 0x00010000 -static u32 A_int_err_selected_used[] __attribute((unused)) = { - 0x000001ff, -}; - -#define A_int_err_unexpected_phase 0x00000000 -static u32 A_int_err_unexpected_phase_used[] __attribute((unused)) = { - 0x00000092, - 0x00000098, - 0x000000a0, - 0x000000d6, - 0x000000da, - 0x000000dc, - 0x000000e4, - 0x000000e8, - 0x000000ea, - 0x000000f2, - 0x000000f6, - 0x000000f8, - 0x000000fa, - 0x00000160, -}; - -#define A_int_err_unexpected_reselect 0x00020000 -static u32 A_int_err_unexpected_reselect_used[] __attribute((unused)) = { - 0x000001cd, -}; - -#define A_int_msg_1 0x01020000 -static u32 A_int_msg_1_used[] __attribute((unused)) = { - 0x00000114, - 0x00000116, -}; - -#define A_int_msg_sdtr 0x01010000 -static u32 A_int_msg_sdtr_used[] __attribute((unused)) = { - 0x00000180, -}; - -#define A_int_msg_wdtr 0x01000000 -static u32 A_int_msg_wdtr_used[] __attribute((unused)) = { - 0x00000174, -}; - -#define A_int_norm_aborted 0x02040000 -static u32 A_int_norm_aborted_used[] __attribute((unused)) = { - 0x00000270, -}; - -#define A_int_norm_command_complete 0x02020000 -static u32 A_int_norm_command_complete_used[] __attribute((unused)) = { -}; - -#define A_int_norm_disconnected 0x02030000 -static u32 A_int_norm_disconnected_used[] __attribute((unused)) = { -}; - -#define A_int_norm_emulateintfly 0x02060000 -static u32 A_int_norm_emulateintfly_used[] __attribute((unused)) = { - 0x000001a2, -}; - -#define A_int_norm_reselect_complete 0x02010000 -static u32 A_int_norm_reselect_complete_used[] __attribute((unused)) = { -}; - -#define A_int_norm_reset 0x02050000 -static u32 A_int_norm_reset_used[] __attribute((unused)) = { -}; - -#define A_int_norm_select_complete 0x02000000 -static u32 A_int_norm_select_complete_used[] __attribute((unused)) = { -}; - -#define A_int_test_1 0x04000000 -static u32 A_int_test_1_used[] __attribute((unused)) = { - 0x0000021e, -}; - -#define A_int_test_2 0x04010000 -static u32 A_int_test_2_used[] __attribute((unused)) = { - 0x0000023a, -}; - -#define A_int_test_3 0x04020000 -static u32 A_int_test_3_used[] __attribute((unused)) = { -}; - -#define A_msg_buf 0x00000000 -static u32 A_msg_buf_used[] __attribute((unused)) = { - 0x00000108, - 0x00000162, - 0x0000016c, - 0x00000172, - 0x00000178, - 0x0000017e, -}; - -#define A_reconnect_dsa_head 0x00000000 -static u32 A_reconnect_dsa_head_used[] __attribute((unused)) = { - 0x0000006d, - 0x00000074, - 0x000001b1, -}; - -#define A_reselected_identify 0x00000000 -static u32 A_reselected_identify_used[] __attribute((unused)) = { - 0x00000048, - 0x000001af, -}; - -#define A_reselected_tag 0x00000000 -static u32 A_reselected_tag_used[] __attribute((unused)) = { -}; - -#define A_saved_dsa 0x00000000 -static u32 A_saved_dsa_used[] __attribute((unused)) = { - 0x00000005, - 0x0000000e, - 0x00000023, - 0x00000025, - 0x00000032, - 0x0000003f, - 0x00000054, - 0x0000005f, - 0x00000070, - 0x00000078, - 0x0000008d, - 0x000000aa, - 0x000000bb, - 0x000000c0, - 0x000000d1, - 0x0000012f, - 0x000001a4, - 0x000001b5, - 0x000001ba, - 0x000001e2, -}; - -#define A_schedule 0x00000000 -static u32 A_schedule_used[] __attribute((unused)) = { - 0x0000007d, - 0x000001a7, - 0x00000203, - 0x00000244, -}; - -#define A_test_dest 0x00000000 -static u32 A_test_dest_used[] __attribute((unused)) = { - 0x0000021c, -}; - -#define A_test_src 0x00000000 -static u32 A_test_src_used[] __attribute((unused)) = { - 0x0000021b, -}; - -#define Ent_accept_message 0x00000624 -#define Ent_cmdout_cmdout 0x00000264 -#define Ent_command_complete 0x0000065c -#define Ent_command_complete_msgin 0x0000066c -#define Ent_data_transfer 0x0000026c -#define Ent_datain_to_jump 0x00000334 -#define Ent_debug_break 0x000008ec -#define Ent_dsa_code_begin 0x00000000 -#define Ent_dsa_code_check_reselect 0x0000010c -#define Ent_dsa_code_fix_jump 0x00000058 -#define Ent_dsa_code_restore_pointers 0x000000d8 -#define Ent_dsa_code_save_data_pointer 0x000000a4 -#define Ent_dsa_code_template 0x00000000 -#define Ent_dsa_code_template_end 0x00000178 -#define Ent_dsa_schedule 0x00000178 -#define Ent_dsa_zero 0x00000178 -#define Ent_end_data_transfer 0x000002a4 -#define Ent_initiator_abort 0x00000914 -#define Ent_msg_in 0x0000041c -#define Ent_msg_in_restart 0x000003fc -#define Ent_other_in 0x0000038c -#define Ent_other_out 0x00000354 -#define Ent_other_transfer 0x000003c4 -#define Ent_reject_message 0x00000604 -#define Ent_reselected_check_next 0x000006f0 -#define Ent_reselected_ok 0x00000798 -#define Ent_respond_message 0x0000063c -#define Ent_select 0x000001f8 -#define Ent_select_msgout 0x00000218 -#define Ent_target_abort 0x000008f4 -#define Ent_test_1 0x00000868 -#define Ent_test_2 0x0000087c -#define Ent_test_2_msgout 0x0000089c -#define Ent_wait_reselect 0x000006a8 -static u32 LABELPATCHES[] __attribute((unused)) = { - 0x00000011, - 0x0000001a, - 0x0000001d, - 0x00000028, - 0x0000002a, - 0x00000035, - 0x00000038, - 0x00000042, - 0x00000050, - 0x00000052, - 0x0000006b, - 0x00000083, - 0x00000085, - 0x00000090, - 0x00000094, - 0x00000096, - 0x0000009c, - 0x0000009e, - 0x000000a2, - 0x000000a4, - 0x000000a6, - 0x000000a8, - 0x000000b6, - 0x000000b9, - 0x000000cc, - 0x000000cf, - 0x000000d8, - 0x000000de, - 0x000000e0, - 0x000000e6, - 0x000000ec, - 0x000000ee, - 0x000000f4, - 0x000000fc, - 0x000000fe, - 0x0000010a, - 0x0000010c, - 0x0000010e, - 0x00000110, - 0x00000112, - 0x00000118, - 0x0000011a, - 0x0000012d, - 0x00000143, - 0x00000158, - 0x0000015c, - 0x00000164, - 0x00000166, - 0x00000168, - 0x0000016e, - 0x0000017a, - 0x000001ab, - 0x000001b8, - 0x000001bf, - 0x000001c3, - 0x000001c7, - 0x000001cb, - 0x000001e0, - 0x000001f8, - 0x00000207, - 0x0000020f, - 0x00000213, - 0x00000217, - 0x00000224, - 0x00000226, - 0x00000248, - 0x0000024a, - 0x0000024c, - 0x0000024e, - 0x00000250, - 0x00000252, - 0x00000256, - 0x0000025a, - 0x0000025c, - 0x00000260, - 0x00000262, - 0x00000266, - 0x00000268, -}; - -static struct { - u32 offset; - void *address; -} EXTERNAL_PATCHES[] __attribute((unused)) = { -}; - -static u32 INSTRUCTIONS __attribute((unused)) = 290; -static u32 PATCHES __attribute((unused)) = 78; -static u32 EXTERNAL_PATCHES_LEN __attribute((unused)) = 0; diff --git a/drivers/scsi/53c7xx_u.h_shipped b/drivers/scsi/53c7xx_u.h_shipped deleted file mode 100644 index 7b33717..0000000 --- a/drivers/scsi/53c7xx_u.h_shipped +++ /dev/null @@ -1,102 +0,0 @@ -#undef A_NCR53c7xx_msg_abort -#undef A_NCR53c7xx_msg_reject -#undef A_NCR53c7xx_sink -#undef A_NCR53c7xx_zero -#undef A_NOP_insn -#undef A_addr_dsa -#undef A_addr_reconnect_dsa_head -#undef A_addr_scratch -#undef A_addr_temp -#undef A_dmode_memory_to_memory -#undef A_dmode_memory_to_ncr -#undef A_dmode_ncr_to_memory -#undef A_dsa_check_reselect -#undef A_dsa_cmdout -#undef A_dsa_cmnd -#undef A_dsa_datain -#undef A_dsa_dataout -#undef A_dsa_end -#undef A_dsa_fields_start -#undef A_dsa_msgin -#undef A_dsa_msgout -#undef A_dsa_msgout_other -#undef A_dsa_next -#undef A_dsa_restore_pointers -#undef A_dsa_save_data_pointer -#undef A_dsa_select -#undef A_dsa_sscf_710 -#undef A_dsa_status -#undef A_dsa_temp_addr_array_value -#undef A_dsa_temp_addr_dsa_value -#undef A_dsa_temp_addr_new_value -#undef A_dsa_temp_addr_next -#undef A_dsa_temp_addr_residual -#undef A_dsa_temp_addr_saved_pointer -#undef A_dsa_temp_addr_saved_residual -#undef A_dsa_temp_lun -#undef A_dsa_temp_next -#undef A_dsa_temp_sync -#undef A_dsa_temp_target -#undef A_emulfly -#undef A_int_debug_break -#undef A_int_debug_panic -#undef A_int_err_check_condition -#undef A_int_err_no_phase -#undef A_int_err_selected -#undef A_int_err_unexpected_phase -#undef A_int_err_unexpected_reselect -#undef A_int_msg_1 -#undef A_int_msg_sdtr -#undef A_int_msg_wdtr -#undef A_int_norm_aborted -#undef A_int_norm_command_complete -#undef A_int_norm_disconnected -#undef A_int_norm_emulateintfly -#undef A_int_norm_reselect_complete -#undef A_int_norm_reset -#undef A_int_norm_select_complete -#undef A_int_test_1 -#undef A_int_test_2 -#undef A_int_test_3 -#undef A_msg_buf -#undef A_reconnect_dsa_head -#undef A_reselected_identify -#undef A_reselected_tag -#undef A_saved_dsa -#undef A_schedule -#undef A_test_dest -#undef A_test_src -#undef Ent_accept_message -#undef Ent_cmdout_cmdout -#undef Ent_command_complete -#undef Ent_command_complete_msgin -#undef Ent_data_transfer -#undef Ent_datain_to_jump -#undef Ent_debug_break -#undef Ent_dsa_code_begin -#undef Ent_dsa_code_check_reselect -#undef Ent_dsa_code_fix_jump -#undef Ent_dsa_code_restore_pointers -#undef Ent_dsa_code_save_data_pointer -#undef Ent_dsa_code_template -#undef Ent_dsa_code_template_end -#undef Ent_dsa_schedule -#undef Ent_dsa_zero -#undef Ent_end_data_transfer -#undef Ent_initiator_abort -#undef Ent_msg_in -#undef Ent_msg_in_restart -#undef Ent_other_in -#undef Ent_other_out -#undef Ent_other_transfer -#undef Ent_reject_message -#undef Ent_reselected_check_next -#undef Ent_reselected_ok -#undef Ent_respond_message -#undef Ent_select -#undef Ent_select_msgout -#undef Ent_target_abort -#undef Ent_test_1 -#undef Ent_test_2 -#undef Ent_test_2_msgout -#undef Ent_wait_reselect diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 96f4cab..9b20617 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -304,18 +304,10 @@ static struct BusLogic_CCB *BusLogic_All static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB) { struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; - struct scsi_cmnd *cmd = CCB->Command; - if (cmd->use_sg != 0) { - pci_unmap_sg(HostAdapter->PCI_Device, - (struct scatterlist *)cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - } else if (cmd->request_bufflen != 0) { - pci_unmap_single(HostAdapter->PCI_Device, CCB->DataPointer, - CCB->DataLength, cmd->sc_data_direction); - } + scsi_dma_unmap(CCB->Command); pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer, - CCB->SenseDataLength, PCI_DMA_FROMDEVICE); + CCB->SenseDataLength, PCI_DMA_FROMDEVICE); CCB->Command = NULL; CCB->Status = BusLogic_CCB_Free; @@ -2648,7 +2640,8 @@ #endif */ if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) { struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID]; - struct SCSI_Inquiry *InquiryResult = (struct SCSI_Inquiry *) Command->request_buffer; + struct SCSI_Inquiry *InquiryResult = + (struct SCSI_Inquiry *) scsi_sglist(Command); TargetFlags->TargetExists = true; TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue; TargetFlags->WideTransfersSupported = InquiryResult->WBus16; @@ -2819,9 +2812,8 @@ static int BusLogic_QueueCommand(struct int CDB_Length = Command->cmd_len; int TargetID = Command->device->id; int LogicalUnit = Command->device->lun; - void *BufferPointer = Command->request_buffer; - int BufferLength = Command->request_bufflen; - int SegmentCount = Command->use_sg; + int BufferLength = scsi_bufflen(Command); + int Count; struct BusLogic_CCB *CCB; /* SCSI REQUEST_SENSE commands will be executed automatically by the Host @@ -2851,36 +2843,35 @@ static int BusLogic_QueueCommand(struct return 0; } } + /* Initialize the fields in the BusLogic Command Control Block (CCB). */ - if (SegmentCount == 0 && BufferLength != 0) { - CCB->Opcode = BusLogic_InitiatorCCB; - CCB->DataLength = BufferLength; - CCB->DataPointer = pci_map_single(HostAdapter->PCI_Device, - BufferPointer, BufferLength, - Command->sc_data_direction); - } else if (SegmentCount != 0) { - struct scatterlist *ScatterList = (struct scatterlist *) BufferPointer; - int Segment, Count; - - Count = pci_map_sg(HostAdapter->PCI_Device, ScatterList, SegmentCount, - Command->sc_data_direction); + Count = scsi_dma_map(Command); + BUG_ON(Count < 0); + if (Count) { + struct scatterlist *sg; + int i; + CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather; CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment); if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB); else CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList); - for (Segment = 0; Segment < Count; Segment++) { - CCB->ScatterGatherList[Segment].SegmentByteCount = sg_dma_len(ScatterList + Segment); - CCB->ScatterGatherList[Segment].SegmentDataPointer = sg_dma_address(ScatterList + Segment); + + scsi_for_each_sg(Command, sg, Count, i) { + CCB->ScatterGatherList[i].SegmentByteCount = + sg_dma_len(sg); + CCB->ScatterGatherList[i].SegmentDataPointer = + sg_dma_address(sg); } - } else { + } else if (!Count) { CCB->Opcode = BusLogic_InitiatorCCB; CCB->DataLength = BufferLength; CCB->DataPointer = 0; } + switch (CDB[0]) { case READ_6: case READ_10: diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 572034c..aac9cd9 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -738,7 +738,7 @@ config SCSI_GENERIC_NCR53C400 config SCSI_IBMMCA tristate "IBMMCA SCSI support" - depends on MCA_LEGACY && SCSI + depends on MCA && SCSI ---help--- This is support for the IBM SCSI adapter found in many of the PS/2 series computers. These machines have an MCA bus, so you need to diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index b1b6327..cba3967 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -37,7 +37,6 @@ obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas/ obj-$(CONFIG_ISCSI_TCP) += libiscsi.o iscsi_tcp.o obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o -obj-$(CONFIG_SCSI_AMIGA7XX) += amiga7xx.o 53c7xx.o obj-$(CONFIG_A3000_SCSI) += a3000.o wd33c93.o obj-$(CONFIG_A2091_SCSI) += a2091.o wd33c93.o obj-$(CONFIG_GVP11_SCSI) += gvp11.o wd33c93.o @@ -53,8 +52,6 @@ obj-$(CONFIG_ATARI_SCSI) += atari_scsi.o obj-$(CONFIG_MAC_SCSI) += mac_scsi.o obj-$(CONFIG_SCSI_MAC_ESP) += mac_esp.o NCR53C9x.o obj-$(CONFIG_SUN3_SCSI) += sun3_scsi.o sun3_scsi_vme.o -obj-$(CONFIG_MVME16x_SCSI) += mvme16x.o 53c7xx.o -obj-$(CONFIG_BVME6000_SCSI) += bvme6000.o 53c7xx.o obj-$(CONFIG_SCSI_SIM710) += 53c700.o sim710.o obj-$(CONFIG_SCSI_ADVANSYS) += advansys.o obj-$(CONFIG_SCSI_PSI240I) += psi240i.o @@ -168,10 +165,8 @@ NCR_Q720_mod-objs := NCR_Q720.o ncr53c8x oktagon_esp_mod-objs := oktagon_esp.o oktagon_io.o # Files generated that shall be removed upon make clean -clean-files := 53c7xx_d.h 53c700_d.h \ - 53c7xx_u.h 53c700_u.h +clean-files := 53c700_d.h 53c700_u.h -$(obj)/53c7xx.o: $(obj)/53c7xx_d.h $(obj)/53c7xx_u.h $(obj)/53c700.o $(MODVERDIR)/$(obj)/53c700.ver: $(obj)/53c700_d.h # If you want to play with the firmware, uncomment @@ -179,11 +174,6 @@ # GENERATE_FIRMWARE := 1 ifdef GENERATE_FIRMWARE -$(obj)/53c7xx_d.h: $(src)/53c7xx.scr $(src)/script_asm.pl - $(CPP) -traditional -DCHIP=710 - < $< | grep -v '^#' | $(PERL) -s $(src)/script_asm.pl -ncr7x0_family $@ $(@:_d.h=_u.h) - -$(obj)/53c7xx_u.h: $(obj)/53c7xx_d.h - $(obj)/53c700_d.h: $(src)/53c700.scr $(src)/script_asm.pl $(PERL) -s $(src)/script_asm.pl -ncr7x0_family $@ $(@:_d.h=_u.h) < $< diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index bb3cb33..37de6b3 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -347,7 +347,7 @@ static int NCR5380_poll_politely(struct if((r & bit) == val) return 0; if(!in_interrupt()) - yield(); + cond_resched(); else cpu_relax(); } @@ -357,7 +357,7 @@ static int NCR5380_poll_politely(struct static struct { unsigned char value; const char *name; -} phases[] = { +} phases[] __maybe_unused = { {PHASE_DATAOUT, "DATAOUT"}, {PHASE_DATAIN, "DATAIN"}, {PHASE_CMDOUT, "CMDOUT"}, @@ -575,7 +575,8 @@ static irqreturn_t __init probe_intr(int * Locks: none, irqs must be enabled on entry */ -static int __init NCR5380_probe_irq(struct Scsi_Host *instance, int possible) +static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance, + int possible) { NCR5380_local_declare(); struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata; @@ -629,7 +630,8 @@ static int __init NCR5380_probe_irq(stru * Locks: none */ -static void __init NCR5380_print_options(struct Scsi_Host *instance) +static void __init __maybe_unused +NCR5380_print_options(struct Scsi_Host *instance) { printk(" generic options" #ifdef AUTOPROBE_IRQ @@ -703,8 +705,8 @@ char *lprint_command(unsigned char *cmd, static char *lprint_opcode(int opcode, char *pos, char *buffer, int length); -static -int NCR5380_proc_info(struct Scsi_Host *instance, char *buffer, char **start, off_t offset, int length, int inout) +static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance, + char *buffer, char **start, off_t offset, int length, int inout) { char *pos = buffer; struct NCR5380_hostdata *hostdata; diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index 713a108..bccf13f 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -299,7 +299,7 @@ #ifndef DONT_USE_INTR static irqreturn_t NCR5380_intr(int irq, void *dev_id); #endif static void NCR5380_main(struct work_struct *work); -static void NCR5380_print_options(struct Scsi_Host *instance); +static void __maybe_unused NCR5380_print_options(struct Scsi_Host *instance); #ifdef NDEBUG static void NCR5380_print_phase(struct Scsi_Host *instance); static void NCR5380_print(struct Scsi_Host *instance); @@ -307,8 +307,8 @@ #endif static int NCR5380_abort(Scsi_Cmnd * cmd); static int NCR5380_bus_reset(Scsi_Cmnd * cmd); static int NCR5380_queue_command(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)); -static int NCR5380_proc_info(struct Scsi_Host *instance, char *buffer, char **start, -off_t offset, int length, int inout); +static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance, + char *buffer, char **start, off_t offset, int length, int inout); static void NCR5380_reselect(struct Scsi_Host *instance); static int NCR5380_select(struct Scsi_Host *instance, Scsi_Cmnd * cmd, int tag); diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c index 7c0b17f..eda8c48 100644 --- a/drivers/scsi/NCR53c406a.c +++ b/drivers/scsi/NCR53c406a.c @@ -698,7 +698,7 @@ static int NCR53c406a_queue(Scsi_Cmnd * int i; VDEB(printk("NCR53c406a_queue called\n")); - DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->target, SCpnt->lun, SCpnt->request_bufflen)); + DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->target, SCpnt->lun, scsi_bufflen(SCpnt))); #if 0 VDEB(for (i = 0; i < SCpnt->cmd_len; i++) @@ -785,8 +785,8 @@ static void NCR53c406a_intr(void *dev_id unsigned char status, int_reg; #if USE_PIO unsigned char pio_status; - struct scatterlist *sglist; - unsigned int sgcount; + struct scatterlist *sg; + int i; #endif VDEB(printk("NCR53c406a_intr called\n")); @@ -866,22 +866,18 @@ #endif /* USE_PIO */ current_SC->SCp.phase = data_out; VDEB(printk("NCR53c406a: Data-Out phase\n")); outb(FLUSH_FIFO, CMD_REG); - LOAD_DMA_COUNT(current_SC->request_bufflen); /* Max transfer size */ + LOAD_DMA_COUNT(scsi_bufflen(current_SC)); /* Max transfer size */ #if USE_DMA /* No s/g support for DMA */ - NCR53c406a_dma_write(current_SC->request_buffer, current_SC->request_bufflen); + NCR53c406a_dma_write(scsi_sglist(current_SC), + scsdi_bufflen(current_SC)); + #endif /* USE_DMA */ outb(TRANSFER_INFO | DMA_OP, CMD_REG); #if USE_PIO - if (!current_SC->use_sg) /* Don't use scatter-gather */ - NCR53c406a_pio_write(current_SC->request_buffer, current_SC->request_bufflen); - else { /* use scatter-gather */ - sgcount = current_SC->use_sg; - sglist = current_SC->request_buffer; - while (sgcount--) { - NCR53c406a_pio_write(page_address(sglist->page) + sglist->offset, sglist->length); - sglist++; - } - } + scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) { + NCR53c406a_pio_write(page_address(sg->page) + sg->offset, + sg->length); + } REG0; #endif /* USE_PIO */ } @@ -893,22 +889,17 @@ #endif /* USE_PIO */ current_SC->SCp.phase = data_in; VDEB(printk("NCR53c406a: Data-In phase\n")); outb(FLUSH_FIFO, CMD_REG); - LOAD_DMA_COUNT(current_SC->request_bufflen); /* Max transfer size */ + LOAD_DMA_COUNT(scsi_bufflen(current_SC)); /* Max transfer size */ #if USE_DMA /* No s/g support for DMA */ - NCR53c406a_dma_read(current_SC->request_buffer, current_SC->request_bufflen); + NCR53c406a_dma_read(scsi_sglist(current_SC), + scsdi_bufflen(current_SC)); #endif /* USE_DMA */ outb(TRANSFER_INFO | DMA_OP, CMD_REG); #if USE_PIO - if (!current_SC->use_sg) /* Don't use scatter-gather */ - NCR53c406a_pio_read(current_SC->request_buffer, current_SC->request_bufflen); - else { /* Use scatter-gather */ - sgcount = current_SC->use_sg; - sglist = current_SC->request_buffer; - while (sgcount--) { - NCR53c406a_pio_read(page_address(sglist->page) + sglist->offset, sglist->length); - sglist++; - } - } + scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) { + NCR53c406a_pio_read(page_address(sg->page) + sg->offset, + sg->length); + } REG0; #endif /* USE_PIO */ } diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index 7f4241b..7cedc72 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -796,7 +796,7 @@ static void orc_interrupt( *****************************************************************************/ static void inia100BuildSCB(ORC_HCS * pHCB, ORC_SCB * pSCB, struct scsi_cmnd * SCpnt) { /* Create corresponding SCB */ - struct scatterlist *pSrbSG; + struct scatterlist *sg; ORC_SG *pSG; /* Pointer to SG list */ int i, count_sg; ESCB *pEScb; @@ -813,30 +813,22 @@ static void inia100BuildSCB(ORC_HCS * pH pSCB->SCB_Reserved1 = 0; pSCB->SCB_SGLen = 0; - if ((pSCB->SCB_XferLen = (U32) SCpnt->request_bufflen)) { - pSG = (ORC_SG *) & pEScb->ESCB_SGList[0]; - if (SCpnt->use_sg) { - pSrbSG = (struct scatterlist *) SCpnt->request_buffer; - count_sg = pci_map_sg(pHCB->pdev, pSrbSG, SCpnt->use_sg, - SCpnt->sc_data_direction); - pSCB->SCB_SGLen = (U32) (count_sg * 8); - for (i = 0; i < count_sg; i++, pSG++, pSrbSG++) { - pSG->SG_Ptr = (U32) sg_dma_address(pSrbSG); - pSG->SG_Len = (U32) sg_dma_len(pSrbSG); - } - } else if (SCpnt->request_bufflen != 0) {/* Non SG */ - pSCB->SCB_SGLen = 0x8; - SCpnt->SCp.dma_handle = pci_map_single(pHCB->pdev, - SCpnt->request_buffer, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - pSG->SG_Ptr = (U32) SCpnt->SCp.dma_handle; - pSG->SG_Len = (U32) SCpnt->request_bufflen; - } else { - pSCB->SCB_SGLen = 0; - pSG->SG_Ptr = 0; - pSG->SG_Len = 0; + pSCB->SCB_XferLen = (U32) scsi_bufflen(SCpnt); + pSG = (ORC_SG *) & pEScb->ESCB_SGList[0]; + + count_sg = scsi_dma_map(SCpnt); + BUG_ON(count_sg < 0); + if (count_sg) { + pSCB->SCB_SGLen = (U32) (count_sg * 8); + scsi_for_each_sg(SCpnt, sg, count_sg, i) { + pSG->SG_Ptr = (U32) sg_dma_address(sg); + pSG->SG_Len = (U32) sg_dma_len(sg); + pSG++; } + } else { + pSCB->SCB_SGLen = 0; + pSG->SG_Ptr = 0; + pSG->SG_Len = 0; } pSCB->SCB_SGPAddr = (U32) pSCB->SCB_SensePAddr; pSCB->SCB_HaStat = 0; @@ -995,15 +987,7 @@ static void inia100SCBPost(BYTE * pHcb, } pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16); - if (pSRB->use_sg) { - pci_unmap_sg(pHCB->pdev, - (struct scatterlist *)pSRB->request_buffer, - pSRB->use_sg, pSRB->sc_data_direction); - } else if (pSRB->request_bufflen != 0) { - pci_unmap_single(pHCB->pdev, pSRB->SCp.dma_handle, - pSRB->request_bufflen, - pSRB->sc_data_direction); - } + scsi_dma_unmap(pSRB); pSRB->scsi_done(pSRB); /* Notify system DONE */ diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 8dcfe4e..47014be 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -825,7 +825,7 @@ static int aac_read_raw_io(struct fib * readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32)); readcmd->count = cpu_to_le32(count<<9); readcmd->cid = cpu_to_le16(scmd_id(cmd)); - readcmd->flags = cpu_to_le16(1); + readcmd->flags = cpu_to_le16(IO_TYPE_READ); readcmd->bpTotal = 0; readcmd->bpComplete = 0; @@ -904,7 +904,7 @@ static int aac_read_block(struct fib * f (void *) cmd); } -static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count) +static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua) { u16 fibsize; struct aac_raw_io *writecmd; @@ -914,7 +914,9 @@ static int aac_write_raw_io(struct fib * writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32)); writecmd->count = cpu_to_le32(count<<9); writecmd->cid = cpu_to_le16(scmd_id(cmd)); - writecmd->flags = 0; + writecmd->flags = fua ? + cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) : + cpu_to_le16(IO_TYPE_WRITE); writecmd->bpTotal = 0; writecmd->bpComplete = 0; @@ -933,7 +935,7 @@ static int aac_write_raw_io(struct fib * (void *) cmd); } -static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count) +static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua) { u16 fibsize; struct aac_write64 *writecmd; @@ -964,7 +966,7 @@ static int aac_write_block64(struct fib (void *) cmd); } -static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count) +static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua) { u16 fibsize; struct aac_write *writecmd; @@ -1498,6 +1500,7 @@ static int aac_write(struct scsi_cmnd * { u64 lba; u32 count; + int fua; int status; struct aac_dev *dev; struct fib * cmd_fibcontext; @@ -1512,6 +1515,7 @@ static int aac_write(struct scsi_cmnd * count = scsicmd->cmnd[4]; if (count == 0) count = 256; + fua = 0; } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */ dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd))); @@ -1524,6 +1528,7 @@ static int aac_write(struct scsi_cmnd * (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) | (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13]; + fua = scsicmd->cmnd[1] & 0x8; } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */ dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd))); @@ -1531,10 +1536,12 @@ static int aac_write(struct scsi_cmnd * | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16) | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9]; + fua = scsicmd->cmnd[1] & 0x8; } else { dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd))); lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8]; + fua = scsicmd->cmnd[1] & 0x8; } dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n", smp_processor_id(), (unsigned long long)lba, jiffies)); @@ -1549,7 +1556,7 @@ static int aac_write(struct scsi_cmnd * return 0; } - status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count); + status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua); /* * Check that the command queued to the controller @@ -1886,15 +1893,29 @@ int aac_scsi_cmd(struct scsi_cmnd * scsi case MODE_SENSE: { - char mode_buf[4]; + char mode_buf[7]; + int mode_buf_length = 4; dprintk((KERN_DEBUG "MODE SENSE command.\n")); mode_buf[0] = 3; /* Mode data length */ mode_buf[1] = 0; /* Medium type - default */ - mode_buf[2] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */ + mode_buf[2] = 0; /* Device-specific param, + bit 8: 0/1 = write enabled/protected + bit 4: 0/1 = FUA enabled */ + if (dev->raw_io_interface) + mode_buf[2] = 0x10; mode_buf[3] = 0; /* Block descriptor length */ - - aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf)); + if (((scsicmd->cmnd[2] & 0x3f) == 8) || + ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) { + mode_buf[0] = 6; + mode_buf[4] = 8; + mode_buf[5] = 1; + mode_buf[6] = 0x04; /* WCE */ + mode_buf_length = 7; + if (mode_buf_length > scsicmd->cmnd[4]) + mode_buf_length = scsicmd->cmnd[4]; + } + aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length); scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; scsicmd->scsi_done(scsicmd); @@ -1902,18 +1923,33 @@ int aac_scsi_cmd(struct scsi_cmnd * scsi } case MODE_SENSE_10: { - char mode_buf[8]; + char mode_buf[11]; + int mode_buf_length = 8; dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n")); mode_buf[0] = 0; /* Mode data length (MSB) */ mode_buf[1] = 6; /* Mode data length (LSB) */ mode_buf[2] = 0; /* Medium type - default */ - mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */ + mode_buf[3] = 0; /* Device-specific param, + bit 8: 0/1 = write enabled/protected + bit 4: 0/1 = FUA enabled */ + if (dev->raw_io_interface) + mode_buf[3] = 0x10; mode_buf[4] = 0; /* reserved */ mode_buf[5] = 0; /* reserved */ mode_buf[6] = 0; /* Block descriptor length (MSB) */ mode_buf[7] = 0; /* Block descriptor length (LSB) */ - aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf)); + if (((scsicmd->cmnd[2] & 0x3f) == 8) || + ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) { + mode_buf[1] = 9; + mode_buf[8] = 8; + mode_buf[9] = 1; + mode_buf[10] = 0x04; /* WCE */ + mode_buf_length = 11; + if (mode_buf_length > scsicmd->cmnd[8]) + mode_buf_length = scsicmd->cmnd[8]; + } + aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length); scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; scsicmd->scsi_done(scsicmd); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index c81edf3..fdbedb1 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -464,12 +464,12 @@ struct adapter_ops int (*adapter_restart)(struct aac_dev *dev, int bled); /* Transport operations */ int (*adapter_ioremap)(struct aac_dev * dev, u32 size); - irqreturn_t (*adapter_intr)(int irq, void *dev_id); + irq_handler_t adapter_intr; /* Packet operations */ int (*adapter_deliver)(struct fib * fib); int (*adapter_bounds)(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba); int (*adapter_read)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count); - int (*adapter_write)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count); + int (*adapter_write)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua); int (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd); /* Administrative operations */ int (*adapter_comm)(struct aac_dev * dev, int comm); @@ -1054,8 +1054,8 @@ #define aac_adapter_bounds(dev,cmd,lba) #define aac_adapter_read(fib,cmd,lba,count) \ ((fib)->dev)->a_ops.adapter_read(fib,cmd,lba,count) -#define aac_adapter_write(fib,cmd,lba,count) \ - ((fib)->dev)->a_ops.adapter_write(fib,cmd,lba,count) +#define aac_adapter_write(fib,cmd,lba,count,fua) \ + ((fib)->dev)->a_ops.adapter_write(fib,cmd,lba,count,fua) #define aac_adapter_scsi(fib,cmd) \ ((fib)->dev)->a_ops.adapter_scsi(fib,cmd) @@ -1213,6 +1213,9 @@ struct aac_write64 __le32 block; __le16 pad; __le16 flags; +#define IO_TYPE_WRITE 0x00000000 +#define IO_TYPE_READ 0x00000001 +#define IO_SUREWRITE 0x00000008 struct sgmap64 sg; // Must be last in struct because it is variable }; struct aac_write_reply diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 350ea7f..a270a3f 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -403,10 +403,6 @@ static int aac_biosparm(struct scsi_devi static int aac_slave_configure(struct scsi_device *sdev) { - if (sdev_channel(sdev) == CONTAINER_CHANNEL) { - sdev->skip_ms_page_8 = 1; - sdev->skip_ms_page_3f = 1; - } if ((sdev->type == TYPE_DISK) && (sdev_channel(sdev) != CONTAINER_CHANNEL)) { if (expose_physicals == 0) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 9b3303b..2b66897 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -798,7 +798,6 @@ #include #include #include #include -#include "advansys.h" #ifdef CONFIG_PCI #include #endif /* CONFIG_PCI */ @@ -2014,7 +2013,7 @@ #ifdef CONFIG_ISA STATIC void AscEnableIsaDma(uchar); #endif /* CONFIG_ISA */ STATIC ASC_DCNT AscGetMaxDmaCount(ushort); - +static const char *advansys_info(struct Scsi_Host *shp); /* * --- Adv Library Constants and Macros @@ -3970,10 +3969,6 @@ STATIC ushort asc_bus[ASC_NUM_BUS] __ini ASC_IS_PCI, }; -/* - * Used with the LILO 'advansys' option to eliminate or - * limit I/O port probing at boot time, cf. advansys_setup(). - */ STATIC int asc_iopflag = ASC_FALSE; STATIC int asc_ioport[ASC_NUM_IOPORT_PROBE] = { 0, 0, 0, 0 }; @@ -4055,10 +4050,6 @@ STATIC void asc_prt_hex(char *f, #endif /* ADVANSYS_DEBUG */ -/* - * --- Linux 'struct scsi_host_template' and advansys_setup() Functions - */ - #ifdef CONFIG_PROC_FS /* * advansys_proc_info() - /proc/scsi/advansys/[0-(ASC_NUM_BOARD_SUPPORTED-1)] @@ -4080,7 +4071,7 @@ #ifdef CONFIG_PROC_FS * if 'prtbuf' is too small it will not be overwritten. Instead the * user just won't get all the available statistics. */ -int +static int advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset, int length, int inout) { @@ -4296,7 +4287,7 @@ #endif /* CONFIG_PROC_FS */ * it must not call SCSI mid-level functions including scsi_malloc() * and scsi_free(). */ -int __init +static int __init advansys_detect(struct scsi_host_template *tpnt) { static int detect_called = ASC_FALSE; @@ -5428,7 +5419,7 @@ #endif /* CONFIG_PROC_FS */ * * Release resources allocated for a single AdvanSys adapter. */ -int +static int advansys_release(struct Scsi_Host *shp) { asc_board_t *boardp; @@ -5475,7 +5466,7 @@ #endif /* CONFIG_PROC_FS */ * Note: The information line should not exceed ASC_INFO_SIZE bytes, * otherwise the static 'info' array will be overrun. */ -const char * +static const char * advansys_info(struct Scsi_Host *shp) { static char info[ASC_INFO_SIZE]; @@ -5568,7 +5559,7 @@ advansys_info(struct Scsi_Host *shp) * This function always returns 0. Command return status is saved * in the 'scp' result field. */ -int +static int advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { struct Scsi_Host *shp; @@ -5656,7 +5647,7 @@ advansys_queuecommand(struct scsi_cmnd * * sleeping is allowed and no locking other than for host structures is * required. Returns SUCCESS or FAILED. */ -int +static int advansys_reset(struct scsi_cmnd *scp) { struct Scsi_Host *shp; @@ -5841,7 +5832,7 @@ #endif /* ADVANSYS_STATS */ * ip[1]: sectors * ip[2]: cylinders */ -int +static int advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int ip[]) { @@ -5875,82 +5866,6 @@ advansys_biosparam(struct scsi_device *s } /* - * advansys_setup() - * - * This function is called from init/main.c at boot time. - * It it passed LILO parameters that can be set from the - * LILO command line or in /etc/lilo.conf. - * - * It is used by the AdvanSys driver to either disable I/O - * port scanning or to limit scanning to 1 - 4 I/O ports. - * Regardless of the option setting EISA and PCI boards - * will still be searched for and detected. This option - * only affects searching for ISA and VL boards. - * - * If ADVANSYS_DEBUG is defined the driver debug level may - * be set using the 5th (ASC_NUM_IOPORT_PROBE + 1) I/O Port. - * - * Examples: - * 1. Eliminate I/O port scanning: - * boot: linux advansys= - * or - * boot: linux advansys=0x0 - * 2. Limit I/O port scanning to one I/O port: - * boot: linux advansys=0x110 - * 3. Limit I/O port scanning to four I/O ports: - * boot: linux advansys=0x110,0x210,0x230,0x330 - * 4. If ADVANSYS_DEBUG, limit I/O port scanning to four I/O ports and - * set the driver debug level to 2. - * boot: linux advansys=0x110,0x210,0x230,0x330,0xdeb2 - * - * ints[0] - number of arguments - * ints[1] - first argument - * ints[2] - second argument - * ... - */ -void __init -advansys_setup(char *str, int *ints) -{ - int i; - - if (asc_iopflag == ASC_TRUE) { - printk("AdvanSys SCSI: 'advansys' LILO option may appear only once\n"); - return; - } - - asc_iopflag = ASC_TRUE; - - if (ints[0] > ASC_NUM_IOPORT_PROBE) { -#ifdef ADVANSYS_DEBUG - if ((ints[0] == ASC_NUM_IOPORT_PROBE + 1) && - (ints[ASC_NUM_IOPORT_PROBE + 1] >> 4 == 0xdeb)) { - asc_dbglvl = ints[ASC_NUM_IOPORT_PROBE + 1] & 0xf; - } else { -#endif /* ADVANSYS_DEBUG */ - printk("AdvanSys SCSI: only %d I/O ports accepted\n", - ASC_NUM_IOPORT_PROBE); -#ifdef ADVANSYS_DEBUG - } -#endif /* ADVANSYS_DEBUG */ - } - -#ifdef ADVANSYS_DEBUG - ASC_DBG1(1, "advansys_setup: ints[0] %d\n", ints[0]); - for (i = 1; i < ints[0]; i++) { - ASC_DBG2(1, " ints[%d] 0x%x", i, ints[i]); - } - ASC_DBG(1, "\n"); -#endif /* ADVANSYS_DEBUG */ - - for (i = 1; i <= ints[0] && i <= ASC_NUM_IOPORT_PROBE; i++) { - asc_ioport[i-1] = ints[i]; - ASC_DBG2(1, "advansys_setup: asc_ioport[%d] 0x%x\n", - i - 1, asc_ioport[i-1]); - } -} - - -/* * --- Loadable Driver Support */ diff --git a/drivers/scsi/advansys.h b/drivers/scsi/advansys.h deleted file mode 100644 index 8ee7fb1..0000000 --- a/drivers/scsi/advansys.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * advansys.h - Linux Host Driver for AdvanSys SCSI Adapters - * - * Copyright (c) 1995-2000 Advanced System Products, Inc. - * Copyright (c) 2000-2001 ConnectCom Solutions, Inc. - * All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that redistributions of source - * code retain the above copyright notice and this comment without - * modification. - * - * As of March 8, 2000 Advanced System Products, Inc. (AdvanSys) - * changed its name to ConnectCom Solutions, Inc. - * - */ - -#ifndef _ADVANSYS_H -#define _ADVANSYS_H - -/* - * struct scsi_host_template function prototypes. - */ -int advansys_detect(struct scsi_host_template *); -int advansys_release(struct Scsi_Host *); -const char *advansys_info(struct Scsi_Host *); -int advansys_queuecommand(struct scsi_cmnd *, void (* done)(struct scsi_cmnd *)); -int advansys_reset(struct scsi_cmnd *); -int advansys_biosparam(struct scsi_device *, struct block_device *, - sector_t, int[]); -static int advansys_slave_configure(struct scsi_device *); - -/* init/main.c setup function */ -void advansys_setup(char *, int *); - -#endif /* _ADVANSYS_H */ diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index 4b4d123..85f2394 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -240,6 +240,7 @@ #include #include #include #include +#include #include #include #include @@ -253,7 +254,6 @@ #include #include #include #include -#include #include #include "scsi.h" @@ -551,7 +551,7 @@ #endif */ struct aha152x_scdata { Scsi_Cmnd *next; /* next sc in queue */ - struct semaphore *sem; /* semaphore to block on */ + struct completion *done;/* semaphore to block on */ unsigned char cmd_len; unsigned char cmnd[MAX_COMMAND_SIZE]; unsigned short use_sg; @@ -608,7 +608,7 @@ #define HOSTIOPORT1 (HOSTDATA(shpnt)->i #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble) #define SCNEXT(SCpnt) SCDATA(SCpnt)->next -#define SCSEM(SCpnt) SCDATA(SCpnt)->sem +#define SCSEM(SCpnt) SCDATA(SCpnt)->done #define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset)) @@ -969,7 +969,8 @@ static int setup_expected_interrupts(str /* * Queue a command and setup interrupts for a free bus. */ -static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int phase, void (*done)(Scsi_Cmnd *)) +static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete, + int phase, void (*done)(Scsi_Cmnd *)) { struct Scsi_Host *shpnt = SCpnt->device->host; unsigned long flags; @@ -1013,7 +1014,7 @@ #endif } SCNEXT(SCpnt) = NULL; - SCSEM(SCpnt) = sem; + SCSEM(SCpnt) = complete; /* setup scratch area SCp.ptr : buffer pointer @@ -1084,9 +1085,9 @@ #if 0 DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt)); #endif if(SCSEM(SCpnt)) { - up(SCSEM(SCpnt)); + complete(SCSEM(SCpnt)); } else { - printk(KERN_ERR "aha152x: reset_done w/o semaphore\n"); + printk(KERN_ERR "aha152x: reset_done w/o completion\n"); } } @@ -1139,21 +1140,6 @@ #endif return FAILED; } -static void timer_expired(unsigned long p) -{ - Scsi_Cmnd *SCp = (Scsi_Cmnd *)p; - struct semaphore *sem = SCSEM(SCp); - struct Scsi_Host *shpnt = SCp->device->host; - unsigned long flags; - - /* remove command from issue queue */ - DO_LOCK(flags); - remove_SC(&ISSUE_SC, SCp); - DO_UNLOCK(flags); - - up(sem); -} - /* * Reset a device * @@ -1161,14 +1147,14 @@ static void timer_expired(unsigned long static int aha152x_device_reset(Scsi_Cmnd * SCpnt) { struct Scsi_Host *shpnt = SCpnt->device->host; - DECLARE_MUTEX_LOCKED(sem); - struct timer_list timer; + DECLARE_COMPLETION(done); int ret, issued, disconnected; unsigned char old_cmd_len = SCpnt->cmd_len; unsigned short old_use_sg = SCpnt->use_sg; void *old_buffer = SCpnt->request_buffer; unsigned old_bufflen = SCpnt->request_bufflen; unsigned long flags; + unsigned long timeleft; #if defined(AHA152X_DEBUG) if(HOSTDATA(shpnt)->debug & debug_eh) { @@ -1192,15 +1178,15 @@ #endif SCpnt->request_buffer = NULL; SCpnt->request_bufflen = 0; - init_timer(&timer); - timer.data = (unsigned long) SCpnt; - timer.expires = jiffies + 100*HZ; /* 10s */ - timer.function = (void (*)(unsigned long)) timer_expired; + aha152x_internal_queue(SCpnt, &done, resetting, reset_done); - aha152x_internal_queue(SCpnt, &sem, resetting, reset_done); - add_timer(&timer); - down(&sem); - del_timer(&timer); + timeleft = wait_for_completion_timeout(&done, 100*HZ); + if (!timeleft) { + /* remove command from issue queue */ + DO_LOCK(flags); + remove_SC(&ISSUE_SC, SCpnt); + DO_UNLOCK(flags); + } SCpnt->cmd_len = old_cmd_len; SCpnt->use_sg = old_use_sg; diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index d7af9c6..e4a4f3a 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c @@ -271,20 +271,8 @@ static irqreturn_t aha1740_intr_handle(i continue; } sgptr = (struct aha1740_sg *) SCtmp->host_scribble; - if (SCtmp->use_sg) { - /* We used scatter-gather. - Do the unmapping dance. */ - dma_unmap_sg (&edev->dev, - (struct scatterlist *) SCtmp->request_buffer, - SCtmp->use_sg, - SCtmp->sc_data_direction); - } else { - dma_unmap_single (&edev->dev, - sgptr->buf_dma_addr, - SCtmp->request_bufflen, - DMA_BIDIRECTIONAL); - } - + scsi_dma_unmap(SCtmp); + /* Free the sg block */ dma_free_coherent (&edev->dev, sizeof (struct aha1740_sg), @@ -349,11 +337,9 @@ static int aha1740_queuecommand(Scsi_Cmn unchar target = scmd_id(SCpnt); struct aha1740_hostdata *host = HOSTDATA(SCpnt->device->host); unsigned long flags; - void *buff = SCpnt->request_buffer; - int bufflen = SCpnt->request_bufflen; dma_addr_t sg_dma; struct aha1740_sg *sgptr; - int ecbno; + int ecbno, nseg; DEB(int i); if(*cmd == REQUEST_SENSE) { @@ -423,24 +409,23 @@ #endif } sgptr = (struct aha1740_sg *) SCpnt->host_scribble; sgptr->sg_dma_addr = sg_dma; - - if (SCpnt->use_sg) { - struct scatterlist * sgpnt; + + nseg = scsi_dma_map(SCpnt); + BUG_ON(nseg < 0); + if (nseg) { + struct scatterlist *sg; struct aha1740_chain * cptr; - int i, count; + int i; DEB(unsigned char * ptr); host->ecb[ecbno].sg = 1; /* SCSI Initiator Command * w/scatter-gather*/ - sgpnt = (struct scatterlist *) SCpnt->request_buffer; cptr = sgptr->sg_chain; - count = dma_map_sg (&host->edev->dev, sgpnt, SCpnt->use_sg, - SCpnt->sc_data_direction); - for(i=0; i < count; i++) { - cptr[i].datalen = sg_dma_len (sgpnt + i); - cptr[i].dataptr = sg_dma_address (sgpnt + i); + scsi_for_each_sg(SCpnt, sg, nseg, i) { + cptr[i].datalen = sg_dma_len (sg); + cptr[i].dataptr = sg_dma_address (sg); } - host->ecb[ecbno].datalen = count*sizeof(struct aha1740_chain); + host->ecb[ecbno].datalen = nseg * sizeof(struct aha1740_chain); host->ecb[ecbno].dataptr = sg_dma; #ifdef DEBUG printk("cptr %x: ",cptr); @@ -448,11 +433,8 @@ #ifdef DEBUG for(i=0;i<24;i++) printk("%02x ", ptr[i]); #endif } else { - host->ecb[ecbno].datalen = bufflen; - sgptr->buf_dma_addr = dma_map_single (&host->edev->dev, - buff, bufflen, - DMA_BIDIRECTIONAL); - host->ecb[ecbno].dataptr = sgptr->buf_dma_addr; + host->ecb[ecbno].datalen = 0; + host->ecb[ecbno].dataptr = 0; } host->ecb[ecbno].lun = SCpnt->device->lun; host->ecb[ecbno].ses = 1; /* Suppress underrun errors */ diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 6054881..286ab83 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -376,21 +376,10 @@ static __inline void ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) { struct scsi_cmnd *cmd; - int direction; cmd = scb->io_ctx; - direction = cmd->sc_data_direction; ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); - if (cmd->use_sg != 0) { - struct scatterlist *sg; - - sg = (struct scatterlist *)cmd->request_buffer; - pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction); - } else if (cmd->request_bufflen != 0) { - pci_unmap_single(ahd->dev_softc, - scb->platform_data->buf_busaddr, - cmd->request_bufflen, direction); - } + scsi_dma_unmap(cmd); } /******************************** Macros **************************************/ @@ -1422,6 +1411,7 @@ ahd_linux_run_command(struct ahd_softc * u_int col_idx; uint16_t mask; unsigned long flags; + int nseg; ahd_lock(ahd, &flags); @@ -1494,18 +1484,17 @@ ahd_linux_run_command(struct ahd_softc * ahd_set_residual(scb, 0); ahd_set_sense_residual(scb, 0); scb->sg_count = 0; - if (cmd->use_sg != 0) { - void *sg; - struct scatterlist *cur_seg; - u_int nseg; - int dir; - - cur_seg = (struct scatterlist *)cmd->request_buffer; - dir = cmd->sc_data_direction; - nseg = pci_map_sg(ahd->dev_softc, cur_seg, - cmd->use_sg, dir); + + nseg = scsi_dma_map(cmd); + BUG_ON(nseg < 0); + if (nseg > 0) { + void *sg = scb->sg_list; + struct scatterlist *cur_seg; + int i; + scb->platform_data->xfer_len = 0; - for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) { + + scsi_for_each_sg(cmd, cur_seg, nseg, i) { dma_addr_t addr; bus_size_t len; @@ -1513,22 +1502,8 @@ ahd_linux_run_command(struct ahd_softc * len = sg_dma_len(cur_seg); scb->platform_data->xfer_len += len; sg = ahd_sg_setup(ahd, scb, sg, addr, len, - /*last*/nseg == 1); + i == (nseg - 1)); } - } else if (cmd->request_bufflen != 0) { - void *sg; - dma_addr_t addr; - int dir; - - sg = scb->sg_list; - dir = cmd->sc_data_direction; - addr = pci_map_single(ahd->dev_softc, - cmd->request_buffer, - cmd->request_bufflen, dir); - scb->platform_data->xfer_len = cmd->request_bufflen; - scb->platform_data->buf_busaddr = addr; - sg = ahd_sg_setup(ahd, scb, sg, addr, - cmd->request_bufflen, /*last*/TRUE); } LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h index ad9761b..853998b 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.h +++ b/drivers/scsi/aic7xxx/aic79xx_osm.h @@ -781,7 +781,7 @@ int ahd_get_transfer_dir(struct scb *scb static __inline void ahd_set_residual(struct scb *scb, u_long resid) { - scb->io_ctx->resid = resid; + scsi_set_resid(scb->io_ctx, resid); } static __inline @@ -793,7 +793,7 @@ void ahd_set_sense_residual(struct scb * static __inline u_long ahd_get_residual(struct scb *scb) { - return (scb->io_ctx->resid); + return scsi_get_resid(scb->io_ctx); } static __inline diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 660f26e..1803ab6 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -402,18 +402,8 @@ ahc_linux_unmap_scb(struct ahc_softc *ah cmd = scb->io_ctx; ahc_sync_sglist(ahc, scb, BUS_DMASYNC_POSTWRITE); - if (cmd->use_sg != 0) { - struct scatterlist *sg; - - sg = (struct scatterlist *)cmd->request_buffer; - pci_unmap_sg(ahc->dev_softc, sg, cmd->use_sg, - cmd->sc_data_direction); - } else if (cmd->request_bufflen != 0) { - pci_unmap_single(ahc->dev_softc, - scb->platform_data->buf_busaddr, - cmd->request_bufflen, - cmd->sc_data_direction); - } + + scsi_dma_unmap(cmd); } static __inline int @@ -1381,6 +1371,7 @@ ahc_linux_run_command(struct ahc_softc * struct ahc_tmode_tstate *tstate; uint16_t mask; struct scb_tailq *untagged_q = NULL; + int nseg; /* * Schedule us to run later. The only reason we are not @@ -1472,23 +1463,21 @@ ahc_linux_run_command(struct ahc_softc * ahc_set_residual(scb, 0); ahc_set_sense_residual(scb, 0); scb->sg_count = 0; - if (cmd->use_sg != 0) { + + nseg = scsi_dma_map(cmd); + BUG_ON(nseg < 0); + if (nseg > 0) { struct ahc_dma_seg *sg; struct scatterlist *cur_seg; - struct scatterlist *end_seg; - int nseg; + int i; - cur_seg = (struct scatterlist *)cmd->request_buffer; - nseg = pci_map_sg(ahc->dev_softc, cur_seg, cmd->use_sg, - cmd->sc_data_direction); - end_seg = cur_seg + nseg; /* Copy the segments into the SG list. */ sg = scb->sg_list; /* * The sg_count may be larger than nseg if * a transfer crosses a 32bit page. - */ - while (cur_seg < end_seg) { + */ + scsi_for_each_sg(cmd, cur_seg, nseg, i) { dma_addr_t addr; bus_size_t len; int consumed; @@ -1499,7 +1488,6 @@ ahc_linux_run_command(struct ahc_softc * sg, addr, len); sg += consumed; scb->sg_count += consumed; - cur_seg++; } sg--; sg->len |= ahc_htole32(AHC_DMA_LAST_SEG); @@ -1516,33 +1504,6 @@ ahc_linux_run_command(struct ahc_softc * */ scb->hscb->dataptr = scb->sg_list->addr; scb->hscb->datacnt = scb->sg_list->len; - } else if (cmd->request_bufflen != 0) { - struct ahc_dma_seg *sg; - dma_addr_t addr; - - sg = scb->sg_list; - addr = pci_map_single(ahc->dev_softc, - cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - scb->platform_data->buf_busaddr = addr; - scb->sg_count = ahc_linux_map_seg(ahc, scb, - sg, addr, - cmd->request_bufflen); - sg->len |= ahc_htole32(AHC_DMA_LAST_SEG); - - /* - * Reset the sg list pointer. - */ - scb->hscb->sgptr = - ahc_htole32(scb->sg_list_phys | SG_FULL_RESID); - - /* - * Copy the first SG into the "current" - * data pointer area. - */ - scb->hscb->dataptr = sg->addr; - scb->hscb->datacnt = sg->len; } else { scb->hscb->sgptr = ahc_htole32(SG_LIST_NULL); scb->hscb->dataptr = 0; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index 8fee7ed..b48dab4 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -751,7 +751,7 @@ int ahc_get_transfer_dir(struct scb *scb static __inline void ahc_set_residual(struct scb *scb, u_long resid) { - scb->io_ctx->resid = resid; + scsi_set_resid(scb->io_ctx, resid); } static __inline @@ -763,7 +763,7 @@ void ahc_set_sense_residual(struct scb * static __inline u_long ahc_get_residual(struct scb *scb) { - return (scb->io_ctx->resid); + return scsi_get_resid(scb->io_ctx); } static __inline diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c index a988d5a..f5e3c6b 100644 --- a/drivers/scsi/aic7xxx_old.c +++ b/drivers/scsi/aic7xxx_old.c @@ -2690,17 +2690,8 @@ aic7xxx_done(struct aic7xxx_host *p, str struct aic7xxx_scb *scbp; unsigned char queue_depth; - if (cmd->use_sg > 1) - { - struct scatterlist *sg; + scsi_dma_unmap(cmd); - sg = (struct scatterlist *)cmd->request_buffer; - pci_unmap_sg(p->pdev, sg, cmd->use_sg, cmd->sc_data_direction); - } - else if (cmd->request_bufflen) - pci_unmap_single(p->pdev, aic7xxx_mapping(cmd), - cmd->request_bufflen, - cmd->sc_data_direction); if (scb->flags & SCB_SENSE) { pci_unmap_single(p->pdev, @@ -3869,7 +3860,7 @@ aic7xxx_calculate_residual (struct aic7x * the mid layer didn't check residual data counts to see if the * command needs retried. */ - cmd->resid = scb->sg_length - actual; + scsi_set_resid(cmd, scb->sg_length - actual); aic7xxx_status(cmd) = hscb->target_status; } } @@ -10137,6 +10128,7 @@ static void aic7xxx_buildscb(struct aic7 struct scsi_device *sdptr = cmd->device; unsigned char tindex = TARGET_INDEX(cmd); struct request *req = cmd->request; + int use_sg; mask = (0x01 << tindex); hscb = scb->hscb; @@ -10209,8 +10201,10 @@ static void aic7xxx_buildscb(struct aic7 memcpy(scb->cmnd, cmd->cmnd, cmd->cmd_len); hscb->SCSI_cmd_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, scb->cmnd)); - if (cmd->use_sg) - { + use_sg = scsi_dma_map(cmd); + BUG_ON(use_sg < 0); + + if (use_sg) { struct scatterlist *sg; /* Must be mid-level SCSI code scatterlist */ /* @@ -10219,11 +10213,11 @@ static void aic7xxx_buildscb(struct aic7 * differences and the kernel SG list uses virtual addresses where * we need physical addresses. */ - int i, use_sg; + int i; - sg = (struct scatterlist *)cmd->request_buffer; scb->sg_length = 0; - use_sg = pci_map_sg(p->pdev, sg, cmd->use_sg, cmd->sc_data_direction); + + /* * Copy the segments into the SG array. NOTE!!! - We used to * have the first entry both in the data_pointer area and the first @@ -10231,10 +10225,9 @@ static void aic7xxx_buildscb(struct aic7 * entry in both places, but now we download the address of * scb->sg_list[1] instead of 0 to the sg pointer in the hscb. */ - for (i = 0; i < use_sg; i++) - { - unsigned int len = sg_dma_len(sg+i); - scb->sg_list[i].address = cpu_to_le32(sg_dma_address(sg+i)); + scsi_for_each_sg(cmd, sg, use_sg, i) { + unsigned int len = sg_dma_len(sg); + scb->sg_list[i].address = cpu_to_le32(sg_dma_address(sg)); scb->sg_list[i].length = cpu_to_le32(len); scb->sg_length += len; } @@ -10244,33 +10237,13 @@ static void aic7xxx_buildscb(struct aic7 scb->sg_count = i; hscb->SG_segment_count = i; hscb->SG_list_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, &scb->sg_list[1])); - } - else - { - if (cmd->request_bufflen) - { - unsigned int address = pci_map_single(p->pdev, cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - aic7xxx_mapping(cmd) = address; - scb->sg_list[0].address = cpu_to_le32(address); - scb->sg_list[0].length = cpu_to_le32(cmd->request_bufflen); - scb->sg_count = 1; - scb->sg_length = cmd->request_bufflen; - hscb->SG_segment_count = 1; - hscb->SG_list_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, &scb->sg_list[0])); - hscb->data_count = scb->sg_list[0].length; - hscb->data_pointer = scb->sg_list[0].address; - } - else - { + } else { scb->sg_count = 0; scb->sg_length = 0; hscb->SG_segment_count = 0; hscb->SG_list_pointer = 0; hscb->data_count = 0; hscb->data_pointer = 0; - } } } diff --git a/drivers/scsi/amiga7xx.c b/drivers/scsi/amiga7xx.c deleted file mode 100644 index d5d3c4d..0000000 --- a/drivers/scsi/amiga7xx.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. - * Amiga MacroSystemUS WarpEngine SCSI controller. - * Amiga Technologies A4000T SCSI controller. - * Amiga Technologies/DKB A4091 SCSI controller. - * - * Written 1997 by Alan Hourihane - * plus modifications of the 53c7xx.c driver to support the Amiga. - */ -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include "scsi.h" -#include -#include "53c7xx.h" -#include "amiga7xx.h" - - -static int amiga7xx_register_one(struct scsi_host_template *tpnt, - unsigned long address) -{ - long long options; - int clock; - - if (!request_mem_region(address, 0x1000, "ncr53c710")) - return 0; - - address = (unsigned long)z_ioremap(address, 0x1000); - options = OPTION_MEMORY_MAPPED | OPTION_DEBUG_TEST1 | OPTION_INTFLY | - OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS | - OPTION_DISCONNECT; - clock = 50000000; /* 50 MHz SCSI Clock */ - ncr53c7xx_init(tpnt, 0, 710, address, 0, IRQ_AMIGA_PORTS, DMA_NONE, - options, clock); - return 1; -} - - -#ifdef CONFIG_ZORRO - -static struct { - zorro_id id; - unsigned long offset; - int absolute; /* offset is absolute address */ -} amiga7xx_table[] = { - { .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, .offset = 0xf40000, - .absolute = 1 }, - { .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, .offset = 0x40000 }, - { .id = ZORRO_PROD_CBM_A4091_1, .offset = 0x800000 }, - { .id = ZORRO_PROD_CBM_A4091_2, .offset = 0x800000 }, - { .id = ZORRO_PROD_GVP_GFORCE_040_060, .offset = 0x40000 }, - { 0 } -}; - -static int __init amiga7xx_zorro_detect(struct scsi_host_template *tpnt) -{ - int num = 0, i; - struct zorro_dev *z = NULL; - unsigned long address; - - while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { - for (i = 0; amiga7xx_table[i].id; i++) - if (z->id == amiga7xx_table[i].id) - break; - if (!amiga7xx_table[i].id) - continue; - if (amiga7xx_table[i].absolute) - address = amiga7xx_table[i].offset; - else - address = z->resource.start + amiga7xx_table[i].offset; - num += amiga7xx_register_one(tpnt, address); - } - return num; -} - -#endif /* CONFIG_ZORRO */ - - -int __init amiga7xx_detect(struct scsi_host_template *tpnt) -{ - static unsigned char called = 0; - int num = 0; - - if (called || !MACH_IS_AMIGA) - return 0; - - tpnt->proc_name = "Amiga7xx"; - - if (AMIGAHW_PRESENT(A4000_SCSI)) - num += amiga7xx_register_one(tpnt, 0xdd0040); - -#ifdef CONFIG_ZORRO - num += amiga7xx_zorro_detect(tpnt); -#endif - - called = 1; - return num; -} - -static int amiga7xx_release(struct Scsi_Host *shost) -{ - if (shost->irq) - free_irq(shost->irq, NULL); - if (shost->dma_channel != 0xff) - free_dma(shost->dma_channel); - if (shost->io_port && shost->n_io_port) - release_region(shost->io_port, shost->n_io_port); - scsi_unregister(shost); - return 0; -} - -static struct scsi_host_template driver_template = { - .name = "Amiga NCR53c710 SCSI", - .detect = amiga7xx_detect, - .release = amiga7xx_release, - .queuecommand = NCR53c7xx_queue_command, - .abort = NCR53c7xx_abort, - .reset = NCR53c7xx_reset, - .can_queue = 24, - .this_id = 7, - .sg_tablesize = 63, - .cmd_per_lun = 3, - .use_clustering = DISABLE_CLUSTERING -}; - - -#include "scsi_module.c" diff --git a/drivers/scsi/amiga7xx.h b/drivers/scsi/amiga7xx.h deleted file mode 100644 index 7cd63a9..0000000 --- a/drivers/scsi/amiga7xx.h +++ /dev/null @@ -1,23 +0,0 @@ -#ifndef AMIGA7XX_H - -#include - -int amiga7xx_detect(struct scsi_host_template *); -const char *NCR53c7x0_info(void); -int NCR53c7xx_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); -int NCR53c7xx_abort(Scsi_Cmnd *); -int NCR53c7x0_release (struct Scsi_Host *); -int NCR53c7xx_reset(Scsi_Cmnd *, unsigned int); -void NCR53c7x0_intr(int irq, void *dev_id); - -#ifndef CMD_PER_LUN -#define CMD_PER_LUN 3 -#endif - -#ifndef CAN_QUEUE -#define CAN_QUEUE 24 -#endif - -#include - -#endif /* AMIGA7XX_H */ diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 8b46158..672df79 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -369,19 +369,9 @@ static void arcmsr_abort_allcmd(struct A static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb) { - struct AdapterControlBlock *acb = ccb->acb; struct scsi_cmnd *pcmd = ccb->pcmd; - if (pcmd->use_sg != 0) { - struct scatterlist *sl; - - sl = (struct scatterlist *)pcmd->request_buffer; - pci_unmap_sg(acb->pdev, sl, pcmd->use_sg, pcmd->sc_data_direction); - } - else if (pcmd->request_bufflen != 0) - pci_unmap_single(acb->pdev, - pcmd->SCp.dma_handle, - pcmd->request_bufflen, pcmd->sc_data_direction); + scsi_dma_unmap(pcmd); } static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int stand_flag) @@ -551,6 +541,7 @@ static void arcmsr_build_ccb(struct Adap int8_t *psge = (int8_t *)&arcmsr_cdb->u; uint32_t address_lo, address_hi; int arccdbsize = 0x30; + int nseg; ccb->pcmd = pcmd; memset(arcmsr_cdb, 0, sizeof (struct ARCMSR_CDB)); @@ -561,20 +552,20 @@ static void arcmsr_build_ccb(struct Adap arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len; arcmsr_cdb->Context = (unsigned long)arcmsr_cdb; memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len); - if (pcmd->use_sg) { - int length, sgcount, i, cdb_sgcount = 0; - struct scatterlist *sl; - - /* Get Scatter Gather List from scsiport. */ - sl = (struct scatterlist *) pcmd->request_buffer; - sgcount = pci_map_sg(acb->pdev, sl, pcmd->use_sg, - pcmd->sc_data_direction); + + nseg = scsi_dma_map(pcmd); + BUG_ON(nseg < 0); + + if (nseg) { + int length, i, cdb_sgcount = 0; + struct scatterlist *sg; + /* map stor port SG list to our iop SG List. */ - for (i = 0; i < sgcount; i++) { + scsi_for_each_sg(pcmd, sg, nseg, i) { /* Get the physical address of the current data pointer */ - length = cpu_to_le32(sg_dma_len(sl)); - address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sl))); - address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sl))); + length = cpu_to_le32(sg_dma_len(sg)); + address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg))); + address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg))); if (address_hi == 0) { struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; @@ -591,32 +582,12 @@ static void arcmsr_build_ccb(struct Adap psge += sizeof (struct SG64ENTRY); arccdbsize += sizeof (struct SG64ENTRY); } - sl++; cdb_sgcount++; } arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount; - arcmsr_cdb->DataLength = pcmd->request_bufflen; + arcmsr_cdb->DataLength = scsi_bufflen(pcmd); if ( arccdbsize > 256) arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE; - } else if (pcmd->request_bufflen) { - dma_addr_t dma_addr; - dma_addr = pci_map_single(acb->pdev, pcmd->request_buffer, - pcmd->request_bufflen, pcmd->sc_data_direction); - pcmd->SCp.dma_handle = dma_addr; - address_lo = cpu_to_le32(dma_addr_lo32(dma_addr)); - address_hi = cpu_to_le32(dma_addr_hi32(dma_addr)); - if (address_hi == 0) { - struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; - pdma_sg->address = address_lo; - pdma_sg->length = pcmd->request_bufflen; - } else { - struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge; - pdma_sg->addresshigh = address_hi; - pdma_sg->address = address_lo; - pdma_sg->length = pcmd->request_bufflen|IS_SG64_ADDR; - } - arcmsr_cdb->sgcount = 1; - arcmsr_cdb->DataLength = pcmd->request_bufflen; } if (pcmd->sc_data_direction == DMA_TO_DEVICE ) { arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE; @@ -848,24 +819,21 @@ static int arcmsr_iop_message_xfer(struc struct CMD_MESSAGE_FIELD *pcmdmessagefld; int retvalue = 0, transfer_len = 0; char *buffer; + struct scatterlist *sg; uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 | (uint32_t ) cmd->cmnd[6] << 16 | (uint32_t ) cmd->cmnd[7] << 8 | (uint32_t ) cmd->cmnd[8]; /* 4 bytes: Areca io control code */ - if (cmd->use_sg) { - struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer; - buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; - if (cmd->use_sg > 1) { - retvalue = ARCMSR_MESSAGE_FAIL; - goto message_out; - } - transfer_len += sg->length; - } else { - buffer = cmd->request_buffer; - transfer_len = cmd->request_bufflen; + sg = scsi_sglist(cmd); + buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + if (scsi_sg_count(cmd) > 1) { + retvalue = ARCMSR_MESSAGE_FAIL; + goto message_out; } + transfer_len += sg->length; + if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) { retvalue = ARCMSR_MESSAGE_FAIL; goto message_out; @@ -1057,12 +1025,9 @@ static int arcmsr_iop_message_xfer(struc retvalue = ARCMSR_MESSAGE_FAIL; } message_out: - if (cmd->use_sg) { - struct scatterlist *sg; + sg = scsi_sglist(cmd); + kunmap_atomic(buffer - sg->offset, KM_IRQ0); - sg = (struct scatterlist *) cmd->request_buffer; - kunmap_atomic(buffer - sg->offset, KM_IRQ0); - } return retvalue; } @@ -1085,6 +1050,7 @@ static void arcmsr_handle_virtual_comman case INQUIRY: { unsigned char inqdata[36]; char *buffer; + struct scatterlist *sg; if (cmd->device->lun) { cmd->result = (DID_TIME_OUT << 16); @@ -1104,21 +1070,14 @@ static void arcmsr_handle_virtual_comman strncpy(&inqdata[16], "RAID controller ", 16); /* Product Identification */ strncpy(&inqdata[32], "R001", 4); /* Product Revision */ - if (cmd->use_sg) { - struct scatterlist *sg; - sg = (struct scatterlist *) cmd->request_buffer; - buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; - } else { - buffer = cmd->request_buffer; - } + sg = scsi_sglist(cmd); + buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + memcpy(buffer, inqdata, sizeof(inqdata)); - if (cmd->use_sg) { - struct scatterlist *sg; + sg = scsi_sglist(cmd); + kunmap_atomic(buffer - sg->offset, KM_IRQ0); - sg = (struct scatterlist *) cmd->request_buffer; - kunmap_atomic(buffer - sg->offset, KM_IRQ0); - } cmd->scsi_done(cmd); } break; diff --git a/drivers/scsi/bvme6000.c b/drivers/scsi/bvme6000.c deleted file mode 100644 index 599b400..0000000 --- a/drivers/scsi/bvme6000.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. - * - * Based on work by Alan Hourihane - */ -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "scsi.h" -#include -#include "53c7xx.h" -#include "bvme6000.h" - -#include - - -int bvme6000_scsi_detect(struct scsi_host_template *tpnt) -{ - static unsigned char called = 0; - int clock; - long long options; - - if (called) - return 0; - if (!MACH_IS_BVME6000) - return 0; - - tpnt->proc_name = "BVME6000"; - - options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; - - clock = 40000000; /* 66MHz SCSI Clock */ - - ncr53c7xx_init(tpnt, 0, 710, (unsigned long)BVME_NCR53C710_BASE, - 0, BVME_IRQ_SCSI, DMA_NONE, - options, clock); - called = 1; - return 1; -} - -static int bvme6000_scsi_release(struct Scsi_Host *shost) -{ - if (shost->irq) - free_irq(shost->irq, NULL); - if (shost->dma_channel != 0xff) - free_dma(shost->dma_channel); - if (shost->io_port && shost->n_io_port) - release_region(shost->io_port, shost->n_io_port); - scsi_unregister(shost); - return 0; -} - -static struct scsi_host_template driver_template = { - .name = "BVME6000 NCR53c710 SCSI", - .detect = bvme6000_scsi_detect, - .release = bvme6000_scsi_release, - .queuecommand = NCR53c7xx_queue_command, - .abort = NCR53c7xx_abort, - .reset = NCR53c7xx_reset, - .can_queue = 24, - .this_id = 7, - .sg_tablesize = 63, - .cmd_per_lun = 3, - .use_clustering = DISABLE_CLUSTERING -}; - - -#include "scsi_module.c" diff --git a/drivers/scsi/bvme6000.h b/drivers/scsi/bvme6000.h deleted file mode 100644 index ea3e4b2..0000000 --- a/drivers/scsi/bvme6000.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef BVME6000_SCSI_H -#define BVME6000_SCSI_H - -#include - -int bvme6000_scsi_detect(struct scsi_host_template *); -const char *NCR53c7x0_info(void); -int NCR53c7xx_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); -int NCR53c7xx_abort(Scsi_Cmnd *); -int NCR53c7x0_release (struct Scsi_Host *); -int NCR53c7xx_reset(Scsi_Cmnd *, unsigned int); -void NCR53c7x0_intr(int irq, void *dev_id); - -#ifndef CMD_PER_LUN -#define CMD_PER_LUN 3 -#endif - -#ifndef CAN_QUEUE -#define CAN_QUEUE 24 -#endif - -#include - -#endif /* BVME6000_SCSI_H */ diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index 2d38025..a83e9f1 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -1609,8 +1609,9 @@ #endif static void map_dma(unsigned int i, struct hostdata *ha) { - unsigned int k, count, pci_dir; - struct scatterlist *sgpnt; + unsigned int k, pci_dir; + int count; + struct scatterlist *sg; struct mscp *cpp; struct scsi_cmnd *SCpnt; @@ -1625,38 +1626,19 @@ static void map_dma(unsigned int i, stru cpp->sense_len = sizeof SCpnt->sense_buffer; - if (!SCpnt->use_sg) { - - /* If we get here with PCI_DMA_NONE, pci_map_single triggers a BUG() */ - if (!SCpnt->request_bufflen) - pci_dir = PCI_DMA_BIDIRECTIONAL; - - if (SCpnt->request_buffer) - cpp->data_address = H2DEV(pci_map_single(ha->pdev, - SCpnt-> - request_buffer, - SCpnt-> - request_bufflen, - pci_dir)); - - cpp->data_len = H2DEV(SCpnt->request_bufflen); - return; - } - - sgpnt = (struct scatterlist *)SCpnt->request_buffer; - count = pci_map_sg(ha->pdev, sgpnt, SCpnt->use_sg, pci_dir); - - for (k = 0; k < count; k++) { - cpp->sglist[k].address = H2DEV(sg_dma_address(&sgpnt[k])); - cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(&sgpnt[k])); + count = scsi_dma_map(SCpnt); + BUG_ON(count < 0); + scsi_for_each_sg(SCpnt, sg, count, k) { + cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); + cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); } cpp->sg = 1; cpp->data_address = H2DEV(pci_map_single(ha->pdev, cpp->sglist, - SCpnt->use_sg * + scsi_sg_count(SCpnt) * sizeof(struct sg_list), pci_dir)); - cpp->data_len = H2DEV((SCpnt->use_sg * sizeof(struct sg_list))); + cpp->data_len = H2DEV((scsi_sg_count(SCpnt) * sizeof(struct sg_list))); } static void unmap_dma(unsigned int i, struct hostdata *ha) @@ -1673,9 +1655,7 @@ static void unmap_dma(unsigned int i, st pci_unmap_single(ha->pdev, DEV2H(cpp->sense_addr), DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - if (SCpnt->use_sg) - pci_unmap_sg(ha->pdev, SCpnt->request_buffer, SCpnt->use_sg, - pci_dir); + scsi_dma_unmap(SCpnt); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; @@ -1700,9 +1680,9 @@ static void sync_dma(unsigned int i, str DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - if (SCpnt->use_sg) - pci_dma_sync_sg_for_cpu(ha->pdev, SCpnt->request_buffer, - SCpnt->use_sg, pci_dir); + if (scsi_sg_count(SCpnt)) + pci_dma_sync_sg_for_cpu(ha->pdev, scsi_sglist(SCpnt), + scsi_sg_count(SCpnt), pci_dir); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c index 5d4ea6f..36169d5 100644 --- a/drivers/scsi/fdomain.c +++ b/drivers/scsi/fdomain.c @@ -410,6 +410,8 @@ static irqreturn_t do_fdomain_16x0 static char * fdomain = NULL; module_param(fdomain, charp, 0); +#ifndef PCMCIA + static unsigned long addresses[] = { 0xc8000, 0xca000, @@ -426,6 +428,8 @@ #define PORT_COUNT ARRAY_SIZE(ports) static unsigned short ints[] = { 3, 5, 10, 11, 12, 14, 15, 0 }; +#endif /* !PCMCIA */ + /* READ THIS BEFORE YOU ADD A SIGNATURE! @@ -458,6 +462,8 @@ static unsigned short ints[] = { 3, 5, 1 */ +#ifndef PCMCIA + static struct signature { const char *signature; int sig_offset; @@ -503,6 +509,8 @@ static struct signature { #define SIGNATURE_COUNT ARRAY_SIZE(signatures) +#endif /* !PCMCIA */ + static void print_banner( struct Scsi_Host *shpnt ) { if (!shpnt) return; /* This won't ever happen */ @@ -633,6 +641,8 @@ static int fdomain_test_loopback( void ) return 0; } +#ifndef PCMCIA + /* fdomain_get_irq assumes that we have a valid MCA ID for a TMC-1660/TMC-1680 Future Domain board. Now, check to be sure the bios_base matches these ports. If someone was unlucky enough to have @@ -667,7 +677,6 @@ #endif static int fdomain_isa_detect( int *irq, int *iobase ) { -#ifndef PCMCIA int i, j; int base = 0xdeadbeef; int flag = 0; @@ -786,11 +795,22 @@ #endif *iobase = base; return 1; /* success */ -#else - return 0; -#endif } +#else /* PCMCIA */ + +static int fdomain_isa_detect( int *irq, int *iobase ) +{ + if (irq) + *irq = 0; + if (iobase) + *iobase = 0; + return 0; +} + +#endif /* !PCMCIA */ + + /* PCI detection function: int fdomain_pci_bios_detect(int* irq, int* iobase) This function gets the Interrupt Level and I/O base address from the PCI configuration registers. */ @@ -1345,16 +1365,15 @@ #endif #if ERRORS_ONLY if (current_SC->cmnd[0] == REQUEST_SENSE && !current_SC->SCp.Status) { - if ((unsigned char)(*((char *)current_SC->request_buffer+2)) & 0x0f) { + char *buf = scsi_sglist(current_SC); + if ((unsigned char)(*(buf + 2)) & 0x0f) { unsigned char key; unsigned char code; unsigned char qualifier; - key = (unsigned char)(*((char *)current_SC->request_buffer + 2)) - & 0x0f; - code = (unsigned char)(*((char *)current_SC->request_buffer + 12)); - qualifier = (unsigned char)(*((char *)current_SC->request_buffer - + 13)); + key = (unsigned char)(*(buf + 2)) & 0x0f; + code = (unsigned char)(*(buf + 12)); + qualifier = (unsigned char)(*(buf + 13)); if (key != UNIT_ATTENTION && !(key == NOT_READY @@ -1405,8 +1424,8 @@ #if EVERY_ACCESS printk( "queue: target = %d cmnd = 0x%02x pieces = %d size = %u\n", SCpnt->target, *(unsigned char *)SCpnt->cmnd, - SCpnt->use_sg, - SCpnt->request_bufflen ); + scsi_sg_count(SCpnt), + scsi_bufflen(SCpnt)); #endif fdomain_make_bus_idle(); @@ -1416,20 +1435,19 @@ #endif /* Initialize static data */ - if (current_SC->use_sg) { - current_SC->SCp.buffer = - (struct scatterlist *)current_SC->request_buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; - current_SC->SCp.this_residual = current_SC->SCp.buffer->length; - current_SC->SCp.buffers_residual = current_SC->use_sg - 1; + if (scsi_sg_count(current_SC)) { + current_SC->SCp.buffer = scsi_sglist(current_SC); + current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + + current_SC->SCp.buffer->offset; + current_SC->SCp.this_residual = current_SC->SCp.buffer->length; + current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1; } else { - current_SC->SCp.ptr = (char *)current_SC->request_buffer; - current_SC->SCp.this_residual = current_SC->request_bufflen; - current_SC->SCp.buffer = NULL; - current_SC->SCp.buffers_residual = 0; + current_SC->SCp.ptr = 0; + current_SC->SCp.this_residual = 0; + current_SC->SCp.buffer = NULL; + current_SC->SCp.buffers_residual = 0; } - - + current_SC->SCp.Status = 0; current_SC->SCp.Message = 0; current_SC->SCp.have_data_in = 0; @@ -1472,8 +1490,8 @@ static void print_info(struct scsi_cmnd SCpnt->SCp.phase, SCpnt->device->id, *(unsigned char *)SCpnt->cmnd, - SCpnt->use_sg, - SCpnt->request_bufflen ); + scsi_sg_count(SCpnt), + scsi_bufflen(SCpnt)); printk( "sent_command = %d, have_data_in = %d, timeout = %d\n", SCpnt->SCp.sent_command, SCpnt->SCp.have_data_in, diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c index 0e57fb6..4275d1b 100644 --- a/drivers/scsi/ibmmca.c +++ b/drivers/scsi/ibmmca.c @@ -31,14 +31,21 @@ #include #include #include #include -#include #include #include #include "scsi.h" #include -#include "ibmmca.h" + +/* Common forward declarations for all Linux-versions: */ +static int ibmmca_queuecommand (Scsi_Cmnd *, void (*done) (Scsi_Cmnd *)); +static int ibmmca_abort (Scsi_Cmnd *); +static int ibmmca_host_reset (Scsi_Cmnd *); +static int ibmmca_biosparam (struct scsi_device *, struct block_device *, sector_t, int *); +static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout); + + /* current version of this driver-source: */ #define IBMMCA_SCSI_DRIVER_VERSION "4.0b-ac" @@ -65,11 +72,11 @@ #undef IM_DEBUG_PROBE #define IM_DEBUG_CMD_DEVICE TYPE_TAPE /* relative addresses of hardware registers on a subsystem */ -#define IM_CMD_REG(hi) (hosts[(hi)]->io_port) /*Command Interface, (4 bytes long) */ -#define IM_ATTN_REG(hi) (hosts[(hi)]->io_port+4) /*Attention (1 byte) */ -#define IM_CTR_REG(hi) (hosts[(hi)]->io_port+5) /*Basic Control (1 byte) */ -#define IM_INTR_REG(hi) (hosts[(hi)]->io_port+6) /*Interrupt Status (1 byte, r/o) */ -#define IM_STAT_REG(hi) (hosts[(hi)]->io_port+7) /*Basic Status (1 byte, read only) */ +#define IM_CMD_REG(h) ((h)->io_port) /*Command Interface, (4 bytes long) */ +#define IM_ATTN_REG(h) ((h)->io_port+4) /*Attention (1 byte) */ +#define IM_CTR_REG(h) ((h)->io_port+5) /*Basic Control (1 byte) */ +#define IM_INTR_REG(h) ((h)->io_port+6) /*Interrupt Status (1 byte, r/o) */ +#define IM_STAT_REG(h) ((h)->io_port+7) /*Basic Status (1 byte, read only) */ /* basic I/O-port of first adapter */ #define IM_IO_PORT 0x3540 @@ -266,30 +273,36 @@ #define PS2_DISK_LED_OFF() { if (display if ((display_mode & LED_ACTIVITY)||(!display_mode)) \ outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); } -/*list of supported subsystems */ -struct subsys_list_struct { - unsigned short mca_id; - char *description; -}; - /* types of different supported hardware that goes to hostdata special */ #define IBM_SCSI2_FW 0 #define IBM_7568_WCACHE 1 #define IBM_EXP_UNIT 2 #define IBM_SCSI_WCACHE 3 #define IBM_SCSI 4 +#define IBM_INTEGSCSI 5 /* other special flags for hostdata structure */ #define FORCED_DETECTION 100 #define INTEGRATED_SCSI 101 /* List of possible IBM-SCSI-adapters */ -static struct subsys_list_struct subsys_list[] = { - {0x8efc, "IBM SCSI-2 F/W Adapter"}, /* special = 0 */ - {0x8efd, "IBM 7568 Industrial Computer SCSI Adapter w/Cache"}, /* special = 1 */ - {0x8ef8, "IBM Expansion Unit SCSI Controller"}, /* special = 2 */ - {0x8eff, "IBM SCSI Adapter w/Cache"}, /* special = 3 */ - {0x8efe, "IBM SCSI Adapter"}, /* special = 4 */ +static short ibmmca_id_table[] = { + 0x8efc, + 0x8efd, + 0x8ef8, + 0x8eff, + 0x8efe, + /* No entry for integrated SCSI, that's part of the register */ + 0 +}; + +static const char *ibmmca_description[] = { + "IBM SCSI-2 F/W Adapter", /* special = 0 */ + "IBM 7568 Industrial Computer SCSI Adapter w/Cache", /* special = 1 */ + "IBM Expansion Unit SCSI Controller", /* special = 2 */ + "IBM SCSI Adapter w/Cache", /* special = 3 */ + "IBM SCSI Adapter", /* special = 4 */ + "IBM Integrated SCSI Controller", /* special = 5 */ }; /* Max number of logical devices (can be up from 0 to 14). 15 is the address @@ -375,30 +388,30 @@ struct ibmmca_hostdata { }; /* macros to access host data structure */ -#define subsystem_pun(hi) (hosts[(hi)]->this_id) -#define subsystem_maxid(hi) (hosts[(hi)]->max_id) -#define ld(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_ld) -#define get_ldn(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_get_ldn) -#define get_scsi(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_get_scsi) -#define local_checking_phase_flag(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_local_checking_phase_flag) -#define got_interrupt(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_got_interrupt) -#define stat_result(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_stat_result) -#define reset_status(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_reset_status) -#define last_scsi_command(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_command) -#define last_scsi_type(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_type) -#define last_scsi_blockcount(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_blockcount) -#define last_scsi_logical_block(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_logical_block) -#define last_scsi_type(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_type) -#define next_ldn(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_next_ldn) -#define IBM_DS(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_IBM_DS) -#define special(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_special) -#define subsystem_connector_size(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_connector_size) -#define adapter_speed(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_adapter_speed) -#define pos2(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[2]) -#define pos3(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[3]) -#define pos4(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[4]) -#define pos5(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[5]) -#define pos6(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[6]) +#define subsystem_pun(h) ((h)->this_id) +#define subsystem_maxid(h) ((h)->max_id) +#define ld(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_ld) +#define get_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_ldn) +#define get_scsi(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_scsi) +#define local_checking_phase_flag(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_local_checking_phase_flag) +#define got_interrupt(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_got_interrupt) +#define stat_result(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_stat_result) +#define reset_status(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_reset_status) +#define last_scsi_command(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_command) +#define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type) +#define last_scsi_blockcount(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_blockcount) +#define last_scsi_logical_block(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_logical_block) +#define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type) +#define next_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_next_ldn) +#define IBM_DS(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_IBM_DS) +#define special(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_special) +#define subsystem_connector_size(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_connector_size) +#define adapter_speed(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_adapter_speed) +#define pos2(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[2]) +#define pos3(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[3]) +#define pos4(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[4]) +#define pos5(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[5]) +#define pos6(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[6]) /* Define a arbitrary number as subsystem-marker-type. This number is, as described in the ANSI-SCSI-standard, not occupied by other device-types. */ @@ -459,11 +472,6 @@ #endif /*counter of concurrent disk read/writes, to turn on/off disk led */ static int disk_rw_in_progress = 0; -/* host information */ -static int found = 0; -static struct Scsi_Host *hosts[IM_MAX_HOSTS + 1] = { - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL -}; static unsigned int pos[8]; /* whole pos register-line for diagnosis */ /* Taking into account the additions, made by ZP Gu. * This selects now the preset value from the configfile and @@ -474,70 +482,68 @@ #else static char ibm_ansi_order = 0; #endif -static void issue_cmd(int, unsigned long, unsigned char); +static void issue_cmd(struct Scsi_Host *, unsigned long, unsigned char); static void internal_done(Scsi_Cmnd * cmd); -static void check_devices(int, int); -static int immediate_assign(int, unsigned int, unsigned int, unsigned int, unsigned int); -static int immediate_feature(int, unsigned int, unsigned int); +static void check_devices(struct Scsi_Host *, int); +static int immediate_assign(struct Scsi_Host *, unsigned int, unsigned int, unsigned int, unsigned int); +static int immediate_feature(struct Scsi_Host *, unsigned int, unsigned int); #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET -static int immediate_reset(int, unsigned int); +static int immediate_reset(struct Scsi_Host *, unsigned int); #endif -static int device_inquiry(int, int); -static int read_capacity(int, int); -static int get_pos_info(int); +static int device_inquiry(struct Scsi_Host *, int); +static int read_capacity(struct Scsi_Host *, int); +static int get_pos_info(struct Scsi_Host *); static char *ti_p(int); static char *ti_l(int); static char *ibmrate(unsigned int, int); static int probe_display(int); -static int probe_bus_mode(int); -static int device_exists(int, int, int *, int *); -static struct Scsi_Host *ibmmca_register(struct scsi_host_template *, int, int, int, char *); +static int probe_bus_mode(struct Scsi_Host *); +static int device_exists(struct Scsi_Host *, int, int *, int *); static int option_setup(char *); /* local functions needed for proc_info */ -static int ldn_access_load(int, int); -static int ldn_access_total_read_write(int); +static int ldn_access_load(struct Scsi_Host *, int); +static int ldn_access_total_read_write(struct Scsi_Host *); static irqreturn_t interrupt_handler(int irq, void *dev_id) { - int host_index, ihost_index; unsigned int intr_reg; unsigned int cmd_result; unsigned int ldn; + unsigned long flags; Scsi_Cmnd *cmd; int lastSCSI; - struct Scsi_Host *dev = dev_id; + struct device *dev = dev_id; + struct Scsi_Host *shpnt = dev_get_drvdata(dev); - spin_lock(dev->host_lock); - /* search for one adapter-response on shared interrupt */ - for (host_index = 0; hosts[host_index] && !(inb(IM_STAT_REG(host_index)) & IM_INTR_REQUEST); host_index++); - /* return if some other device on this IRQ caused the interrupt */ - if (!hosts[host_index]) { - spin_unlock(dev->host_lock); + spin_lock_irqsave(shpnt->host_lock, flags); + + if(!(inb(IM_STAT_REG(shpnt)) & IM_INTR_REQUEST)) { + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_NONE; } /* the reset-function already did all the job, even ints got renabled on the subsystem, so just return */ - if ((reset_status(host_index) == IM_RESET_NOT_IN_PROGRESS_NO_INT) || (reset_status(host_index) == IM_RESET_FINISHED_OK_NO_INT)) { - reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS; - spin_unlock(dev->host_lock); + if ((reset_status(shpnt) == IM_RESET_NOT_IN_PROGRESS_NO_INT) || (reset_status(shpnt) == IM_RESET_FINISHED_OK_NO_INT)) { + reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS; + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } /*must wait for attention reg not busy, then send EOI to subsystem */ while (1) { - if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) + if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY)) break; cpu_relax(); } - ihost_index = host_index; + /*get command result and logical device */ - intr_reg = (unsigned char) (inb(IM_INTR_REG(ihost_index))); + intr_reg = (unsigned char) (inb(IM_INTR_REG(shpnt))); cmd_result = intr_reg & 0xf0; ldn = intr_reg & 0x0f; /* get the last_scsi_command here */ - lastSCSI = last_scsi_command(ihost_index)[ldn]; - outb(IM_EOI | ldn, IM_ATTN_REG(ihost_index)); + lastSCSI = last_scsi_command(shpnt)[ldn]; + outb(IM_EOI | ldn, IM_ATTN_REG(shpnt)); /*these should never happen (hw fails, or a local programming bug) */ if (!global_command_error_excuse) { @@ -547,38 +553,38 @@ static irqreturn_t interrupt_handler(int case IM_SOFTWARE_SEQUENCING_ERROR: case IM_CMD_ERROR: printk(KERN_ERR "IBM MCA SCSI: Fatal Subsystem ERROR!\n"); - printk(KERN_ERR " Last cmd=0x%x, ena=%x, len=", lastSCSI, ld(ihost_index)[ldn].scb.enable); - if (ld(ihost_index)[ldn].cmd) - printk("%ld/%ld,", (long) (ld(ihost_index)[ldn].cmd->request_bufflen), (long) (ld(ihost_index)[ldn].scb.sys_buf_length)); + printk(KERN_ERR " Last cmd=0x%x, ena=%x, len=", lastSCSI, ld(shpnt)[ldn].scb.enable); + if (ld(shpnt)[ldn].cmd) + printk("%ld/%ld,", (long) (scsi_bufflen(ld(shpnt)[ldn].cmd)), (long) (ld(shpnt)[ldn].scb.sys_buf_length)); else printk("none,"); - if (ld(ihost_index)[ldn].cmd) - printk("Blocksize=%d", ld(ihost_index)[ldn].scb.u2.blk.length); + if (ld(shpnt)[ldn].cmd) + printk("Blocksize=%d", ld(shpnt)[ldn].scb.u2.blk.length); else printk("Blocksize=none"); - printk(", host=0x%x, ldn=0x%x\n", ihost_index, ldn); - if (ld(ihost_index)[ldn].cmd) { - printk(KERN_ERR "Blockcount=%d/%d\n", last_scsi_blockcount(ihost_index)[ldn], ld(ihost_index)[ldn].scb.u2.blk.count); - printk(KERN_ERR "Logical block=%lx/%lx\n", last_scsi_logical_block(ihost_index)[ldn], ld(ihost_index)[ldn].scb.u1.log_blk_adr); + printk(", host=%p, ldn=0x%x\n", shpnt, ldn); + if (ld(shpnt)[ldn].cmd) { + printk(KERN_ERR "Blockcount=%d/%d\n", last_scsi_blockcount(shpnt)[ldn], ld(shpnt)[ldn].scb.u2.blk.count); + printk(KERN_ERR "Logical block=%lx/%lx\n", last_scsi_logical_block(shpnt)[ldn], ld(shpnt)[ldn].scb.u1.log_blk_adr); } printk(KERN_ERR "Reason given: %s\n", (cmd_result == IM_ADAPTER_HW_FAILURE) ? "HARDWARE FAILURE" : (cmd_result == IM_SOFTWARE_SEQUENCING_ERROR) ? "SOFTWARE SEQUENCING ERROR" : (cmd_result == IM_CMD_ERROR) ? "COMMAND ERROR" : "UNKNOWN"); /* if errors appear, enter this section to give detailed info */ printk(KERN_ERR "IBM MCA SCSI: Subsystem Error-Status follows:\n"); - printk(KERN_ERR " Command Type................: %x\n", last_scsi_type(ihost_index)[ldn]); - printk(KERN_ERR " Attention Register..........: %x\n", inb(IM_ATTN_REG(ihost_index))); - printk(KERN_ERR " Basic Control Register......: %x\n", inb(IM_CTR_REG(ihost_index))); + printk(KERN_ERR " Command Type................: %x\n", last_scsi_type(shpnt)[ldn]); + printk(KERN_ERR " Attention Register..........: %x\n", inb(IM_ATTN_REG(shpnt))); + printk(KERN_ERR " Basic Control Register......: %x\n", inb(IM_CTR_REG(shpnt))); printk(KERN_ERR " Interrupt Status Register...: %x\n", intr_reg); - printk(KERN_ERR " Basic Status Register.......: %x\n", inb(IM_STAT_REG(ihost_index))); - if ((last_scsi_type(ihost_index)[ldn] == IM_SCB) || (last_scsi_type(ihost_index)[ldn] == IM_LONG_SCB)) { - printk(KERN_ERR " SCB-Command.................: %x\n", ld(ihost_index)[ldn].scb.command); - printk(KERN_ERR " SCB-Enable..................: %x\n", ld(ihost_index)[ldn].scb.enable); - printk(KERN_ERR " SCB-logical block address...: %lx\n", ld(ihost_index)[ldn].scb.u1.log_blk_adr); - printk(KERN_ERR " SCB-system buffer address...: %lx\n", ld(ihost_index)[ldn].scb.sys_buf_adr); - printk(KERN_ERR " SCB-system buffer length....: %lx\n", ld(ihost_index)[ldn].scb.sys_buf_length); - printk(KERN_ERR " SCB-tsb address.............: %lx\n", ld(ihost_index)[ldn].scb.tsb_adr); - printk(KERN_ERR " SCB-Chain address...........: %lx\n", ld(ihost_index)[ldn].scb.scb_chain_adr); - printk(KERN_ERR " SCB-block count.............: %x\n", ld(ihost_index)[ldn].scb.u2.blk.count); - printk(KERN_ERR " SCB-block length............: %x\n", ld(ihost_index)[ldn].scb.u2.blk.length); + printk(KERN_ERR " Basic Status Register.......: %x\n", inb(IM_STAT_REG(shpnt))); + if ((last_scsi_type(shpnt)[ldn] == IM_SCB) || (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB)) { + printk(KERN_ERR " SCB-Command.................: %x\n", ld(shpnt)[ldn].scb.command); + printk(KERN_ERR " SCB-Enable..................: %x\n", ld(shpnt)[ldn].scb.enable); + printk(KERN_ERR " SCB-logical block address...: %lx\n", ld(shpnt)[ldn].scb.u1.log_blk_adr); + printk(KERN_ERR " SCB-system buffer address...: %lx\n", ld(shpnt)[ldn].scb.sys_buf_adr); + printk(KERN_ERR " SCB-system buffer length....: %lx\n", ld(shpnt)[ldn].scb.sys_buf_length); + printk(KERN_ERR " SCB-tsb address.............: %lx\n", ld(shpnt)[ldn].scb.tsb_adr); + printk(KERN_ERR " SCB-Chain address...........: %lx\n", ld(shpnt)[ldn].scb.scb_chain_adr); + printk(KERN_ERR " SCB-block count.............: %x\n", ld(shpnt)[ldn].scb.u2.blk.count); + printk(KERN_ERR " SCB-block length............: %x\n", ld(shpnt)[ldn].scb.u2.blk.length); } printk(KERN_ERR " Send this report to the maintainer.\n"); panic("IBM MCA SCSI: Fatal error message from the subsystem (0x%X,0x%X)!\n", lastSCSI, cmd_result); @@ -600,72 +606,73 @@ static irqreturn_t interrupt_handler(int } } /* if no panic appeared, increase the interrupt-counter */ - IBM_DS(ihost_index).total_interrupts++; + IBM_DS(shpnt).total_interrupts++; /*only for local checking phase */ - if (local_checking_phase_flag(ihost_index)) { - stat_result(ihost_index) = cmd_result; - got_interrupt(ihost_index) = 1; - reset_status(ihost_index) = IM_RESET_FINISHED_OK; - last_scsi_command(ihost_index)[ldn] = NO_SCSI; - spin_unlock(dev->host_lock); + if (local_checking_phase_flag(shpnt)) { + stat_result(shpnt) = cmd_result; + got_interrupt(shpnt) = 1; + reset_status(shpnt) = IM_RESET_FINISHED_OK; + last_scsi_command(shpnt)[ldn] = NO_SCSI; + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } /* handling of commands coming from upper level of scsi driver */ - if (last_scsi_type(ihost_index)[ldn] == IM_IMM_CMD) { + if (last_scsi_type(shpnt)[ldn] == IM_IMM_CMD) { /* verify ldn, and may handle rare reset immediate command */ - if ((reset_status(ihost_index) == IM_RESET_IN_PROGRESS) && (last_scsi_command(ihost_index)[ldn] == IM_RESET_IMM_CMD)) { + if ((reset_status(shpnt) == IM_RESET_IN_PROGRESS) && (last_scsi_command(shpnt)[ldn] == IM_RESET_IMM_CMD)) { if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) { disk_rw_in_progress = 0; PS2_DISK_LED_OFF(); - reset_status(ihost_index) = IM_RESET_FINISHED_FAIL; + reset_status(shpnt) = IM_RESET_FINISHED_FAIL; } else { /*reset disk led counter, turn off disk led */ disk_rw_in_progress = 0; PS2_DISK_LED_OFF(); - reset_status(ihost_index) = IM_RESET_FINISHED_OK; + reset_status(shpnt) = IM_RESET_FINISHED_OK; } - stat_result(ihost_index) = cmd_result; - last_scsi_command(ihost_index)[ldn] = NO_SCSI; - last_scsi_type(ihost_index)[ldn] = 0; - spin_unlock(dev->host_lock); + stat_result(shpnt) = cmd_result; + last_scsi_command(shpnt)[ldn] = NO_SCSI; + last_scsi_type(shpnt)[ldn] = 0; + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; - } else if (last_scsi_command(ihost_index)[ldn] == IM_ABORT_IMM_CMD) { + } else if (last_scsi_command(shpnt)[ldn] == IM_ABORT_IMM_CMD) { /* react on SCSI abort command */ #ifdef IM_DEBUG_PROBE printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n"); #endif disk_rw_in_progress = 0; PS2_DISK_LED_OFF(); - cmd = ld(ihost_index)[ldn].cmd; - ld(ihost_index)[ldn].cmd = NULL; + cmd = ld(shpnt)[ldn].cmd; + ld(shpnt)[ldn].cmd = NULL; if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) cmd->result = DID_NO_CONNECT << 16; else cmd->result = DID_ABORT << 16; - stat_result(ihost_index) = cmd_result; - last_scsi_command(ihost_index)[ldn] = NO_SCSI; - last_scsi_type(ihost_index)[ldn] = 0; + stat_result(shpnt) = cmd_result; + last_scsi_command(shpnt)[ldn] = NO_SCSI; + last_scsi_type(shpnt)[ldn] = 0; if (cmd->scsi_done) (cmd->scsi_done) (cmd); /* should be the internal_done */ - spin_unlock(dev->host_lock); + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } else { disk_rw_in_progress = 0; PS2_DISK_LED_OFF(); - reset_status(ihost_index) = IM_RESET_FINISHED_OK; - stat_result(ihost_index) = cmd_result; - last_scsi_command(ihost_index)[ldn] = NO_SCSI; - spin_unlock(dev->host_lock); + reset_status(shpnt) = IM_RESET_FINISHED_OK; + stat_result(shpnt) = cmd_result; + last_scsi_command(shpnt)[ldn] = NO_SCSI; + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } } - last_scsi_command(ihost_index)[ldn] = NO_SCSI; - last_scsi_type(ihost_index)[ldn] = 0; - cmd = ld(ihost_index)[ldn].cmd; - ld(ihost_index)[ldn].cmd = NULL; + last_scsi_command(shpnt)[ldn] = NO_SCSI; + last_scsi_type(shpnt)[ldn] = 0; + cmd = ld(shpnt)[ldn].cmd; + ld(shpnt)[ldn].cmd = NULL; #ifdef IM_DEBUG_TIMEOUT if (cmd) { if ((cmd->target == TIMEOUT_PUN) && (cmd->device->lun == TIMEOUT_LUN)) { + spin_unlock_irqsave(shpnt->host_lock, flags); printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n", cmd->target, cmd->device->lun); return IRQ_HANDLED; } @@ -674,15 +681,15 @@ #endif /*if no command structure, just return, else clear cmd */ if (!cmd) { - spin_unlock(dev->host_lock); + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } #ifdef IM_DEBUG_INT - printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n", cmd->cmnd[0], intr_reg, ld(ihost_index)[ldn].tsb.dev_status, ld(ihost_index)[ldn].tsb.cmd_status, ld(ihost_index)[ldn].tsb.dev_error, ld(ihost_index)[ldn].tsb.cmd_error); + printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n", cmd->cmnd[0], intr_reg, ld(shpnt)[ldn].tsb.dev_status, ld(shpnt)[ldn].tsb.cmd_status, ld(shpnt)[ldn].tsb.dev_error, ld(shpnt)[ldn].tsb.cmd_error); #endif /*if this is end of media read/write, may turn off PS/2 disk led */ - if ((ld(ihost_index)[ldn].device_type != TYPE_NO_LUN) && (ld(ihost_index)[ldn].device_type != TYPE_NO_DEVICE)) { + if ((ld(shpnt)[ldn].device_type != TYPE_NO_LUN) && (ld(shpnt)[ldn].device_type != TYPE_NO_DEVICE)) { /* only access this, if there was a valid device addressed */ if (--disk_rw_in_progress == 0) PS2_DISK_LED_OFF(); @@ -693,8 +700,8 @@ #endif * adapters do not support CMD_TERMINATED, TASK_SET_FULL and * ACA_ACTIVE as returning statusbyte information. (ML) */ if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) { - cmd->result = (unsigned char) (ld(ihost_index)[ldn].tsb.dev_status & 0x1e); - IBM_DS(ihost_index).total_errors++; + cmd->result = (unsigned char) (ld(shpnt)[ldn].tsb.dev_status & 0x1e); + IBM_DS(shpnt).total_errors++; } else cmd->result = 0; /* write device status into cmd->result, and call done function */ @@ -705,24 +712,25 @@ #endif cmd->result |= DID_OK << 16; if (cmd->scsi_done) (cmd->scsi_done) (cmd); - spin_unlock(dev->host_lock); + spin_unlock_irqrestore(shpnt->host_lock, flags); return IRQ_HANDLED; } -static void issue_cmd(int host_index, unsigned long cmd_reg, unsigned char attn_reg) +static void issue_cmd(struct Scsi_Host *shpnt, unsigned long cmd_reg, + unsigned char attn_reg) { unsigned long flags; /* must wait for attention reg not busy */ while (1) { - spin_lock_irqsave(hosts[host_index]->host_lock, flags); - if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) + spin_lock_irqsave(shpnt->host_lock, flags); + if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY)) break; - spin_unlock_irqrestore(hosts[host_index]->host_lock, flags); + spin_unlock_irqrestore(shpnt->host_lock, flags); } /* write registers and enable system interrupts */ - outl(cmd_reg, IM_CMD_REG(host_index)); - outb(attn_reg, IM_ATTN_REG(host_index)); - spin_unlock_irqrestore(hosts[host_index]->host_lock, flags); + outl(cmd_reg, IM_CMD_REG(shpnt)); + outb(attn_reg, IM_ATTN_REG(shpnt)); + spin_unlock_irqrestore(shpnt->host_lock, flags); } static void internal_done(Scsi_Cmnd * cmd) @@ -732,34 +740,34 @@ static void internal_done(Scsi_Cmnd * cm } /* SCSI-SCB-command for device_inquiry */ -static int device_inquiry(int host_index, int ldn) +static int device_inquiry(struct Scsi_Host *shpnt, int ldn) { int retr; struct im_scb *scb; struct im_tsb *tsb; unsigned char *buf; - scb = &(ld(host_index)[ldn].scb); - tsb = &(ld(host_index)[ldn].tsb); - buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); - ld(host_index)[ldn].tsb.dev_status = 0; /* prepare statusblock */ + scb = &(ld(shpnt)[ldn].scb); + tsb = &(ld(shpnt)[ldn].tsb); + buf = (unsigned char *) (&(ld(shpnt)[ldn].buf)); + ld(shpnt)[ldn].tsb.dev_status = 0; /* prepare statusblock */ for (retr = 0; retr < 3; retr++) { /* fill scb with inquiry command */ scb->command = IM_DEVICE_INQUIRY_CMD | IM_NO_DISCONNECT; scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_RETRY_ENABLE | IM_BYPASS_BUFFER; - last_scsi_command(host_index)[ldn] = IM_DEVICE_INQUIRY_CMD; - last_scsi_type(host_index)[ldn] = IM_SCB; + last_scsi_command(shpnt)[ldn] = IM_DEVICE_INQUIRY_CMD; + last_scsi_type(shpnt)[ldn] = IM_SCB; scb->sys_buf_adr = isa_virt_to_bus(buf); scb->sys_buf_length = 255; /* maximum bufferlength gives max info */ scb->tsb_adr = isa_virt_to_bus(tsb); /* issue scb to passed ldn, and busy wait for interrupt */ - got_interrupt(host_index) = 0; - issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); - while (!got_interrupt(host_index)) + got_interrupt(shpnt) = 0; + issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn); + while (!got_interrupt(shpnt)) barrier(); /*if command successful, break */ - if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED) || (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) + if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) return 1; } /*if all three retries failed, return "no device at this ldn" */ @@ -769,34 +777,34 @@ static int device_inquiry(int host_index return 1; } -static int read_capacity(int host_index, int ldn) +static int read_capacity(struct Scsi_Host *shpnt, int ldn) { int retr; struct im_scb *scb; struct im_tsb *tsb; unsigned char *buf; - scb = &(ld(host_index)[ldn].scb); - tsb = &(ld(host_index)[ldn].tsb); - buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); - ld(host_index)[ldn].tsb.dev_status = 0; + scb = &(ld(shpnt)[ldn].scb); + tsb = &(ld(shpnt)[ldn].tsb); + buf = (unsigned char *) (&(ld(shpnt)[ldn].buf)); + ld(shpnt)[ldn].tsb.dev_status = 0; for (retr = 0; retr < 3; retr++) { /*fill scb with read capacity command */ scb->command = IM_READ_CAPACITY_CMD; scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_RETRY_ENABLE | IM_BYPASS_BUFFER; - last_scsi_command(host_index)[ldn] = IM_READ_CAPACITY_CMD; - last_scsi_type(host_index)[ldn] = IM_SCB; + last_scsi_command(shpnt)[ldn] = IM_READ_CAPACITY_CMD; + last_scsi_type(shpnt)[ldn] = IM_SCB; scb->sys_buf_adr = isa_virt_to_bus(buf); scb->sys_buf_length = 8; scb->tsb_adr = isa_virt_to_bus(tsb); /*issue scb to passed ldn, and busy wait for interrupt */ - got_interrupt(host_index) = 0; - issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); - while (!got_interrupt(host_index)) + got_interrupt(shpnt) = 0; + issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn); + while (!got_interrupt(shpnt)) barrier(); /*if got capacity, get block length and return one device found */ - if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED) || (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) + if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) return 1; } /*if all three retries failed, return "no device at this ldn" */ @@ -806,39 +814,39 @@ static int read_capacity(int host_index, return 1; } -static int get_pos_info(int host_index) +static int get_pos_info(struct Scsi_Host *shpnt) { int retr; struct im_scb *scb; struct im_tsb *tsb; unsigned char *buf; - scb = &(ld(host_index)[MAX_LOG_DEV].scb); - tsb = &(ld(host_index)[MAX_LOG_DEV].tsb); - buf = (unsigned char *) (&(ld(host_index)[MAX_LOG_DEV].buf)); - ld(host_index)[MAX_LOG_DEV].tsb.dev_status = 0; + scb = &(ld(shpnt)[MAX_LOG_DEV].scb); + tsb = &(ld(shpnt)[MAX_LOG_DEV].tsb); + buf = (unsigned char *) (&(ld(shpnt)[MAX_LOG_DEV].buf)); + ld(shpnt)[MAX_LOG_DEV].tsb.dev_status = 0; for (retr = 0; retr < 3; retr++) { /*fill scb with get_pos_info command */ scb->command = IM_GET_POS_INFO_CMD; scb->enable = IM_READ_CONTROL | IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE | IM_BYPASS_BUFFER; - last_scsi_command(host_index)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD; - last_scsi_type(host_index)[MAX_LOG_DEV] = IM_SCB; + last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD; + last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_SCB; scb->sys_buf_adr = isa_virt_to_bus(buf); - if (special(host_index) == IBM_SCSI2_FW) + if (special(shpnt) == IBM_SCSI2_FW) scb->sys_buf_length = 256; /* get all info from F/W adapter */ else scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */ scb->tsb_adr = isa_virt_to_bus(tsb); /*issue scb to ldn=15, and busy wait for interrupt */ - got_interrupt(host_index) = 0; - issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | MAX_LOG_DEV); + got_interrupt(shpnt) = 0; + issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | MAX_LOG_DEV); /* FIXME: timeout */ - while (!got_interrupt(host_index)) + while (!got_interrupt(shpnt)) barrier(); /*if got POS-stuff, get block length and return one device found */ - if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED) || (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) + if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) return 1; } /* if all three retries failed, return "no device at this ldn" */ @@ -851,14 +859,16 @@ static int get_pos_info(int host_index) /* SCSI-immediate-command for assign. This functions maps/unmaps specific ldn-numbers on SCSI (PUN,LUN). It is needed for presetting of the subsystem and for dynamical remapping od ldns. */ -static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, unsigned int ldn, unsigned int operation) +static int immediate_assign(struct Scsi_Host *shpnt, unsigned int pun, + unsigned int lun, unsigned int ldn, + unsigned int operation) { int retr; unsigned long imm_cmd; for (retr = 0; retr < 3; retr++) { /* select mutation level of the SCSI-adapter */ - switch (special(host_index)) { + switch (special(shpnt)) { case IBM_SCSI2_FW: imm_cmd = (unsigned long) (IM_ASSIGN_IMM_CMD); imm_cmd |= (unsigned long) ((lun & 7) << 24); @@ -867,7 +877,7 @@ static int immediate_assign(int host_ind imm_cmd |= (unsigned long) ((ldn & 15) << 16); break; default: - imm_cmd = inl(IM_CMD_REG(host_index)); + imm_cmd = inl(IM_CMD_REG(shpnt)); imm_cmd &= (unsigned long) (0xF8000000); /* keep reserved bits */ imm_cmd |= (unsigned long) (IM_ASSIGN_IMM_CMD); imm_cmd |= (unsigned long) ((lun & 7) << 24); @@ -876,15 +886,15 @@ static int immediate_assign(int host_ind imm_cmd |= (unsigned long) ((ldn & 15) << 16); break; } - last_scsi_command(host_index)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD; - last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD; - got_interrupt(host_index) = 0; - issue_cmd(host_index, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); - while (!got_interrupt(host_index)) + last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD; + last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD; + got_interrupt(shpnt) = 0; + issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); + while (!got_interrupt(shpnt)) barrier(); /*if command successful, break */ - if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) + if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } if (retr >= 3) @@ -893,7 +903,7 @@ static int immediate_assign(int host_ind return 1; } -static int immediate_feature(int host_index, unsigned int speed, unsigned int timeout) +static int immediate_feature(struct Scsi_Host *shpnt, unsigned int speed, unsigned int timeout) { int retr; unsigned long imm_cmd; @@ -903,16 +913,16 @@ static int immediate_feature(int host_in imm_cmd = IM_FEATURE_CTR_IMM_CMD; imm_cmd |= (unsigned long) ((speed & 0x7) << 29); imm_cmd |= (unsigned long) ((timeout & 0x1fff) << 16); - last_scsi_command(host_index)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD; - last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD; - got_interrupt(host_index) = 0; + last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD; + last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD; + got_interrupt(shpnt) = 0; /* we need to run into command errors in order to probe for the * right speed! */ global_command_error_excuse = 1; - issue_cmd(host_index, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); + issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); /* FIXME: timeout */ - while (!got_interrupt(host_index)) + while (!got_interrupt(shpnt)) barrier(); if (global_command_error_excuse == CMD_FAIL) { global_command_error_excuse = 0; @@ -920,7 +930,7 @@ static int immediate_feature(int host_in } else global_command_error_excuse = 0; /*if command successful, break */ - if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) + if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } if (retr >= 3) @@ -930,35 +940,35 @@ static int immediate_feature(int host_in } #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET -static int immediate_reset(int host_index, unsigned int ldn) +static int immediate_reset(struct Scsi_Host *shpnt, unsigned int ldn) { int retries; int ticks; unsigned long imm_command; for (retries = 0; retries < 3; retries++) { - imm_command = inl(IM_CMD_REG(host_index)); + imm_command = inl(IM_CMD_REG(shpnt)); imm_command &= (unsigned long) (0xFFFF0000); /* keep reserved bits */ imm_command |= (unsigned long) (IM_RESET_IMM_CMD); - last_scsi_command(host_index)[ldn] = IM_RESET_IMM_CMD; - last_scsi_type(host_index)[ldn] = IM_IMM_CMD; - got_interrupt(host_index) = 0; - reset_status(host_index) = IM_RESET_IN_PROGRESS; - issue_cmd(host_index, (unsigned long) (imm_command), IM_IMM_CMD | ldn); + last_scsi_command(shpnt)[ldn] = IM_RESET_IMM_CMD; + last_scsi_type(shpnt)[ldn] = IM_IMM_CMD; + got_interrupt(shpnt) = 0; + reset_status(shpnt) = IM_RESET_IN_PROGRESS; + issue_cmd(shpnt, (unsigned long) (imm_command), IM_IMM_CMD | ldn); ticks = IM_RESET_DELAY * HZ; - while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks) { + while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks) { udelay((1 + 999 / HZ) * 1000); barrier(); } /* if reset did not complete, just complain */ if (!ticks) { printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY); - reset_status(host_index) = IM_RESET_FINISHED_OK; + reset_status(shpnt) = IM_RESET_FINISHED_OK; /* did not work, finish */ return 1; } /*if command successful, break */ - if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) + if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } if (retries >= 3) @@ -1060,35 +1070,35 @@ static int probe_display(int what) return 0; } -static int probe_bus_mode(int host_index) +static int probe_bus_mode(struct Scsi_Host *shpnt) { struct im_pos_info *info; int num_bus = 0; int ldn; - info = (struct im_pos_info *) (&(ld(host_index)[MAX_LOG_DEV].buf)); - if (get_pos_info(host_index)) { + info = (struct im_pos_info *) (&(ld(shpnt)[MAX_LOG_DEV].buf)); + if (get_pos_info(shpnt)) { if (info->connector_size & 0xf000) - subsystem_connector_size(host_index) = 16; + subsystem_connector_size(shpnt) = 16; else - subsystem_connector_size(host_index) = 32; + subsystem_connector_size(shpnt) = 32; num_bus |= (info->pos_4b & 8) >> 3; for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { - if ((special(host_index) == IBM_SCSI_WCACHE) || (special(host_index) == IBM_7568_WCACHE)) { + if ((special(shpnt) == IBM_SCSI_WCACHE) || (special(shpnt) == IBM_7568_WCACHE)) { if (!((info->cache_stat >> ldn) & 1)) - ld(host_index)[ldn].cache_flag = 0; + ld(shpnt)[ldn].cache_flag = 0; } if (!((info->retry_stat >> ldn) & 1)) - ld(host_index)[ldn].retry_flag = 0; + ld(shpnt)[ldn].retry_flag = 0; } #ifdef IM_DEBUG_PROBE printk("IBM MCA SCSI: SCSI-Cache bits: "); for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { - printk("%d", ld(host_index)[ldn].cache_flag); + printk("%d", ld(shpnt)[ldn].cache_flag); } printk("\nIBM MCA SCSI: SCSI-Retry bits: "); for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { - printk("%d", ld(host_index)[ldn].retry_flag); + printk("%d", ld(shpnt)[ldn].retry_flag); } printk("\n"); #endif @@ -1097,7 +1107,7 @@ #endif } /* probing scsi devices */ -static void check_devices(int host_index, int adaptertype) +static void check_devices(struct Scsi_Host *shpnt, int adaptertype) { int id, lun, ldn, ticks; int count_devices; /* local counter for connected device */ @@ -1108,24 +1118,24 @@ static void check_devices(int host_index /* assign default values to certain variables */ ticks = 0; count_devices = 0; - IBM_DS(host_index).dyn_flag = 0; /* normally no need for dynamical ldn management */ - IBM_DS(host_index).total_errors = 0; /* set errorcounter to 0 */ - next_ldn(host_index) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired' */ + IBM_DS(shpnt).dyn_flag = 0; /* normally no need for dynamical ldn management */ + IBM_DS(shpnt).total_errors = 0; /* set errorcounter to 0 */ + next_ldn(shpnt) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired' */ /* initialize the very important driver-informational arrays/structs */ - memset(ld(host_index), 0, sizeof(ld(host_index))); + memset(ld(shpnt), 0, sizeof(ld(shpnt))); for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { - last_scsi_command(host_index)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */ - last_scsi_type(host_index)[ldn] = 0; - ld(host_index)[ldn].cache_flag = 1; - ld(host_index)[ldn].retry_flag = 1; + last_scsi_command(shpnt)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */ + last_scsi_type(shpnt)[ldn] = 0; + ld(shpnt)[ldn].cache_flag = 1; + ld(shpnt)[ldn].retry_flag = 1; } - memset(get_ldn(host_index), TYPE_NO_DEVICE, sizeof(get_ldn(host_index))); /* this is essential ! */ - memset(get_scsi(host_index), TYPE_NO_DEVICE, sizeof(get_scsi(host_index))); /* this is essential ! */ + memset(get_ldn(shpnt), TYPE_NO_DEVICE, sizeof(get_ldn(shpnt))); /* this is essential ! */ + memset(get_scsi(shpnt), TYPE_NO_DEVICE, sizeof(get_scsi(shpnt))); /* this is essential ! */ for (lun = 0; lun < 8; lun++) { /* mark the adapter at its pun on all luns */ - get_scsi(host_index)[subsystem_pun(host_index)][lun] = TYPE_IBM_SCSI_ADAPTER; - get_ldn(host_index)[subsystem_pun(host_index)][lun] = MAX_LOG_DEV; /* make sure, the subsystem + get_scsi(shpnt)[subsystem_pun(shpnt)][lun] = TYPE_IBM_SCSI_ADAPTER; + get_ldn(shpnt)[subsystem_pun(shpnt)][lun] = MAX_LOG_DEV; /* make sure, the subsystem ldn is active for all luns. */ } @@ -1134,9 +1144,9 @@ static void check_devices(int host_index /* monitor connected on model XX95. */ /* STEP 1: */ - adapter_speed(host_index) = global_adapter_speed; - speedrun = adapter_speed(host_index); - while (immediate_feature(host_index, speedrun, adapter_timeout) == 2) { + adapter_speed(shpnt) = global_adapter_speed; + speedrun = adapter_speed(shpnt); + while (immediate_feature(shpnt, speedrun, adapter_timeout) == 2) { probe_display(1); if (speedrun == 7) panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n"); @@ -1144,30 +1154,30 @@ static void check_devices(int host_index if (speedrun > 7) speedrun = 7; } - adapter_speed(host_index) = speedrun; + adapter_speed(shpnt) = speedrun; /* Get detailed information about the current adapter, necessary for * device operations: */ - num_bus = probe_bus_mode(host_index); + num_bus = probe_bus_mode(shpnt); /* num_bus contains only valid data for the F/W adapter! */ if (adaptertype == IBM_SCSI2_FW) { /* F/W SCSI adapter: */ /* F/W adapter PUN-space extension evaluation: */ if (num_bus) { printk(KERN_INFO "IBM MCA SCSI: Separate bus mode (wide-addressing enabled)\n"); - subsystem_maxid(host_index) = 16; + subsystem_maxid(shpnt) = 16; } else { printk(KERN_INFO "IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n"); - subsystem_maxid(host_index) = 8; + subsystem_maxid(shpnt) = 8; } printk(KERN_INFO "IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n", ibmrate(speedrun, adaptertype)); } else /* all other IBM SCSI adapters: */ printk(KERN_INFO "IBM MCA SCSI: Synchronous-SCSI-Transfer-Rate: %s MBytes/s\n", ibmrate(speedrun, adaptertype)); /* assign correct PUN device space */ - max_pun = subsystem_maxid(host_index); + max_pun = subsystem_maxid(shpnt); #ifdef IM_DEBUG_PROBE - printk("IBM MCA SCSI: Current SCSI-host index: %d\n", host_index); + printk("IBM MCA SCSI: Current SCSI-host index: %d\n", shpnt); printk("IBM MCA SCSI: Removing default logical SCSI-device mapping."); #else printk(KERN_INFO "IBM MCA SCSI: Dev. Order: %s, Mapping (takes <2min): ", (ibm_ansi_order) ? "ANSI" : "New"); @@ -1177,7 +1187,7 @@ #endif #ifdef IM_DEBUG_PROBE printk("."); #endif - immediate_assign(host_index, 0, 0, ldn, REMOVE_LDN); /* remove ldn (wherever) */ + immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN); /* remove ldn (wherever) */ } lun = 0; /* default lun is 0 */ #ifndef IM_DEBUG_PROBE @@ -1196,18 +1206,18 @@ #endif #ifdef IM_DEBUG_PROBE printk("."); #endif - if (id != subsystem_pun(host_index)) { + if (id != subsystem_pun(shpnt)) { /* if pun is not the adapter: */ /* set ldn=0 to pun,lun */ - immediate_assign(host_index, id, lun, PROBE_LDN, SET_LDN); - if (device_inquiry(host_index, PROBE_LDN)) { /* probe device */ - get_scsi(host_index)[id][lun] = (unsigned char) (ld(host_index)[PROBE_LDN].buf[0]); + immediate_assign(shpnt, id, lun, PROBE_LDN, SET_LDN); + if (device_inquiry(shpnt, PROBE_LDN)) { /* probe device */ + get_scsi(shpnt)[id][lun] = (unsigned char) (ld(shpnt)[PROBE_LDN].buf[0]); /* entry, even for NO_LUN */ - if (ld(host_index)[PROBE_LDN].buf[0] != TYPE_NO_LUN) + if (ld(shpnt)[PROBE_LDN].buf[0] != TYPE_NO_LUN) count_devices++; /* a existing device is found */ } /* remove ldn */ - immediate_assign(host_index, id, lun, PROBE_LDN, REMOVE_LDN); + immediate_assign(shpnt, id, lun, PROBE_LDN, REMOVE_LDN); } } #ifndef IM_DEBUG_PROBE @@ -1227,16 +1237,16 @@ #endif #ifdef IM_DEBUG_PROBE printk("."); #endif - if (id != subsystem_pun(host_index)) { - if (get_scsi(host_index)[id][lun] != TYPE_NO_LUN && get_scsi(host_index)[id][lun] != TYPE_NO_DEVICE) { + if (id != subsystem_pun(shpnt)) { + if (get_scsi(shpnt)[id][lun] != TYPE_NO_LUN && get_scsi(shpnt)[id][lun] != TYPE_NO_DEVICE) { /* Only map if accepted type. Always enter for lun == 0 to get no gaps into ldn-mapping for ldn<7. */ - immediate_assign(host_index, id, lun, ldn, SET_LDN); - get_ldn(host_index)[id][lun] = ldn; /* map ldn */ - if (device_exists(host_index, ldn, &ld(host_index)[ldn].block_length, &ld(host_index)[ldn].device_type)) { + immediate_assign(shpnt, id, lun, ldn, SET_LDN); + get_ldn(shpnt)[id][lun] = ldn; /* map ldn */ + if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) { #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET printk("resetting device at ldn=%x ... ", ldn); - immediate_reset(host_index, ldn); + immediate_reset(shpnt, ldn); #endif ldn++; } else { @@ -1244,15 +1254,15 @@ #endif * handle it or because it has problems */ if (lun > 0) { /* remove mapping */ - get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE; - immediate_assign(host_index, 0, 0, ldn, REMOVE_LDN); + get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE; + immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN); } else ldn++; } } else if (lun == 0) { /* map lun == 0, even if no device exists */ - immediate_assign(host_index, id, lun, ldn, SET_LDN); - get_ldn(host_index)[id][lun] = ldn; /* map ldn */ + immediate_assign(shpnt, id, lun, ldn, SET_LDN); + get_ldn(shpnt)[id][lun] = ldn; /* map ldn */ ldn++; } } @@ -1262,14 +1272,14 @@ #endif /* map remaining ldns to non-existing devices */ for (lun = 1; lun < 8 && ldn < MAX_LOG_DEV; lun++) for (id = 0; id < max_pun && ldn < MAX_LOG_DEV; id++) { - if (get_scsi(host_index)[id][lun] == TYPE_NO_LUN || get_scsi(host_index)[id][lun] == TYPE_NO_DEVICE) { + if (get_scsi(shpnt)[id][lun] == TYPE_NO_LUN || get_scsi(shpnt)[id][lun] == TYPE_NO_DEVICE) { probe_display(1); /* Map remaining ldns only to NON-existing pun,lun combinations to make sure an inquiry will fail. For MULTI_LUN, it is needed to avoid adapter autonome SCSI-remapping. */ - immediate_assign(host_index, id, lun, ldn, SET_LDN); - get_ldn(host_index)[id][lun] = ldn; + immediate_assign(shpnt, id, lun, ldn, SET_LDN); + get_ldn(shpnt)[id][lun] = ldn; ldn++; } } @@ -1292,51 +1302,51 @@ #ifdef IM_DEBUG_PROBE for (id = 0; id < max_pun; id++) { printk("%2d ", id); for (lun = 0; lun < 8; lun++) - printk("%2s ", ti_p(get_scsi(host_index)[id][lun])); + printk("%2s ", ti_p(get_scsi(shpnt)[id][lun])); printk(" %2d ", id); for (lun = 0; lun < 8; lun++) - printk("%2s ", ti_l(get_ldn(host_index)[id][lun])); + printk("%2s ", ti_l(get_ldn(shpnt)[id][lun])); printk("\n"); } #endif /* assign total number of found SCSI-devices to the statistics struct */ - IBM_DS(host_index).total_scsi_devices = count_devices; + IBM_DS(shpnt).total_scsi_devices = count_devices; /* decide for output in /proc-filesystem, if the configuration of SCSI-devices makes dynamical reassignment of devices necessary */ if (count_devices >= MAX_LOG_DEV) - IBM_DS(host_index).dyn_flag = 1; /* dynamical assignment is necessary */ + IBM_DS(shpnt).dyn_flag = 1; /* dynamical assignment is necessary */ else - IBM_DS(host_index).dyn_flag = 0; /* dynamical assignment is not necessary */ + IBM_DS(shpnt).dyn_flag = 0; /* dynamical assignment is not necessary */ /* If no SCSI-devices are assigned, return 1 in order to cause message. */ if (ldn == 0) printk("IBM MCA SCSI: Warning: No SCSI-devices found/assigned!\n"); /* reset the counters for statistics on the current adapter */ - IBM_DS(host_index).scbs = 0; - IBM_DS(host_index).long_scbs = 0; - IBM_DS(host_index).total_accesses = 0; - IBM_DS(host_index).total_interrupts = 0; - IBM_DS(host_index).dynamical_assignments = 0; - memset(IBM_DS(host_index).ldn_access, 0x0, sizeof(IBM_DS(host_index).ldn_access)); - memset(IBM_DS(host_index).ldn_read_access, 0x0, sizeof(IBM_DS(host_index).ldn_read_access)); - memset(IBM_DS(host_index).ldn_write_access, 0x0, sizeof(IBM_DS(host_index).ldn_write_access)); - memset(IBM_DS(host_index).ldn_inquiry_access, 0x0, sizeof(IBM_DS(host_index).ldn_inquiry_access)); - memset(IBM_DS(host_index).ldn_modeselect_access, 0x0, sizeof(IBM_DS(host_index).ldn_modeselect_access)); - memset(IBM_DS(host_index).ldn_assignments, 0x0, sizeof(IBM_DS(host_index).ldn_assignments)); + IBM_DS(shpnt).scbs = 0; + IBM_DS(shpnt).long_scbs = 0; + IBM_DS(shpnt).total_accesses = 0; + IBM_DS(shpnt).total_interrupts = 0; + IBM_DS(shpnt).dynamical_assignments = 0; + memset(IBM_DS(shpnt).ldn_access, 0x0, sizeof(IBM_DS(shpnt).ldn_access)); + memset(IBM_DS(shpnt).ldn_read_access, 0x0, sizeof(IBM_DS(shpnt).ldn_read_access)); + memset(IBM_DS(shpnt).ldn_write_access, 0x0, sizeof(IBM_DS(shpnt).ldn_write_access)); + memset(IBM_DS(shpnt).ldn_inquiry_access, 0x0, sizeof(IBM_DS(shpnt).ldn_inquiry_access)); + memset(IBM_DS(shpnt).ldn_modeselect_access, 0x0, sizeof(IBM_DS(shpnt).ldn_modeselect_access)); + memset(IBM_DS(shpnt).ldn_assignments, 0x0, sizeof(IBM_DS(shpnt).ldn_assignments)); probe_display(0); return; } -static int device_exists(int host_index, int ldn, int *block_length, int *device_type) +static int device_exists(struct Scsi_Host *shpnt, int ldn, int *block_length, int *device_type) { unsigned char *buf; /* if no valid device found, return immediately with 0 */ - if (!(device_inquiry(host_index, ldn))) + if (!(device_inquiry(shpnt, ldn))) return 0; - buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); + buf = (unsigned char *) (&(ld(shpnt)[ldn].buf)); if (*buf == TYPE_ROM) { *device_type = TYPE_ROM; *block_length = 2048; /* (standard blocksize for yellow-/red-book) */ @@ -1349,7 +1359,7 @@ static int device_exists(int host_index, } if (*buf == TYPE_DISK) { *device_type = TYPE_DISK; - if (read_capacity(host_index, ldn)) { + if (read_capacity(shpnt, ldn)) { *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24); return 1; } else @@ -1357,7 +1367,7 @@ static int device_exists(int host_index, } if (*buf == TYPE_MOD) { *device_type = TYPE_MOD; - if (read_capacity(host_index, ldn)) { + if (read_capacity(shpnt, ldn)) { *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24); return 1; } else @@ -1430,6 +1440,9 @@ static void internal_ibmmca_scsi_setup(c return; } +#if 0 + FIXME NEED TO MOVE TO SYSFS + static int ibmmca_getinfo(char *buf, int slot, void *dev_id) { struct Scsi_Host *shpnt; @@ -1480,58 +1493,34 @@ static int ibmmca_getinfo(char *buf, int return len; } +#endif -int ibmmca_detect(struct scsi_host_template * scsi_template) +static struct scsi_host_template ibmmca_driver_template = { + .proc_name = "ibmmca", + .proc_info = ibmmca_proc_info, + .name = "IBM SCSI-Subsystem", + .queuecommand = ibmmca_queuecommand, + .eh_abort_handler = ibmmca_abort, + .eh_host_reset_handler = ibmmca_host_reset, + .bios_param = ibmmca_biosparam, + .can_queue = 16, + .this_id = 7, + .sg_tablesize = 16, + .cmd_per_lun = 1, + .use_clustering = ENABLE_CLUSTERING, +}; + +static int ibmmca_probe(struct device *dev) { struct Scsi_Host *shpnt; - int port, id, i, j, k, slot; - int devices_on_irq_11 = 0; - int devices_on_irq_14 = 0; - int IRQ14_registered = 0; - int IRQ11_registered = 0; - - found = 0; /* make absolutely sure, that found is set to 0 */ + int port, id, i, j, k, irq, enabled, ret = -EINVAL; + struct mca_device *mca_dev = to_mca_device(dev); + const char *description = ibmmca_description[mca_dev->index]; /* First of all, print the version number of the driver. This is * important to allow better user bugreports in case of already * having problems with the MCA_bus probing. */ printk(KERN_INFO "IBM MCA SCSI: Version %s\n", IBMMCA_SCSI_DRIVER_VERSION); - /* if this is not MCA machine, return "nothing found" */ - if (!MCA_bus) { - printk(KERN_INFO "IBM MCA SCSI: No Microchannel-bus present --> Aborting.\n" " This machine does not have any IBM MCA-bus\n" " or the MCA-Kernel-support is not enabled!\n"); - return 0; - } - -#ifdef MODULE - /* If the driver is run as module, read from conf.modules or cmd-line */ - if (boot_options) - option_setup(boot_options); -#endif - - /* get interrupt request level */ - if (request_irq(IM_IRQ, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts)) { - printk(KERN_ERR "IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ); - return 0; - } else - IRQ14_registered++; - - /* if ibmmcascsi setup option was passed to kernel, return "found" */ - for (i = 0; i < IM_MAX_HOSTS; i++) - if (io_port[i] > 0 && scsi_id[i] >= 0 && scsi_id[i] < 8) { - printk("IBM MCA SCSI: forced detected SCSI Adapter, io=0x%x, scsi id=%d.\n", io_port[i], scsi_id[i]); - if ((shpnt = ibmmca_register(scsi_template, io_port[i], scsi_id[i], FORCED_DETECTION, "forced detected SCSI Adapter"))) { - for (k = 2; k < 7; k++) - ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = 0; - ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = FORCED_DETECTION; - mca_set_adapter_name(MCA_INTEGSCSI, "forced detected SCSI Adapter"); - mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo, shpnt); - mca_mark_as_used(MCA_INTEGSCSI); - devices_on_irq_14++; - } - } - if (found) - return found; - /* The POS2-register of all PS/2 model SCSI-subsystems has the following * interpretation of bits: * Bit 7 - 4 : Chip Revision ID (Release) @@ -1558,7 +1547,14 @@ #endif /* first look for the IBM SCSI integrated subsystem on the motherboard */ for (j = 0; j < 8; j++) /* read the pos-information */ - pos[j] = mca_read_stored_pos(MCA_INTEGSCSI, j); + pos[j] = mca_device_read_pos(mca_dev, j); + id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */ + enabled = (pos[2] &0x01); + if (!enabled) { + printk(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"); + printk(KERN_WARNING " SCSI-operations may not work.\n"); + } + /* pos2 = pos3 = 0xff if there is no integrated SCSI-subsystem present, but * if we ignore the settings of all surrounding pos registers, it is not * completely sufficient to only check pos2 and pos3. */ @@ -1566,232 +1562,137 @@ #endif * make sure, we see a real integrated onboard SCSI-interface and no * internal system information, which gets mapped to some pos registers * on models 95xx. */ - if ((!pos[0] && !pos[1] && pos[2] > 0 && pos[3] > 0 && !pos[4] && !pos[5] && !pos[6] && !pos[7]) || (pos[0] == 0xff && pos[1] == 0xff && pos[2] < 0xff && pos[3] < 0xff && pos[4] == 0xff && pos[5] == 0xff && pos[6] == 0xff && pos[7] == 0xff)) { - if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */ - port = IM_IO_PORT; - else { /* if disabled, no IRQs will be generated, as the chip won't - * listen to the incoming commands and will do really nothing, - * except for listening to the pos-register settings. If this - * happens, I need to hugely think about it, as one has to - * write something to the MCA-Bus pos register in order to - * enable the chip. Normally, IBM-SCSI won't pass the POST, - * when the chip is disabled (see IBM tech. ref.). */ - port = IM_IO_PORT; /* anyway, set the portnumber and warn */ - printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n" " SCSI-operations may not work.\n"); + if (mca_dev->slot == MCA_INTEGSCSI && + ((!pos[0] && !pos[1] && pos[2] > 0 && + pos[3] > 0 && !pos[4] && !pos[5] && + !pos[6] && !pos[7]) || + (pos[0] == 0xff && pos[1] == 0xff && + pos[2] < 0xff && pos[3] < 0xff && + pos[4] == 0xff && pos[5] == 0xff && + pos[6] == 0xff && pos[7] == 0xff))) { + irq = IM_IRQ; + port = IM_IO_PORT; + } else { + irq = IM_IRQ; + port = IM_IO_PORT + ((pos[2] &0x0e) << 2); + if ((mca_dev->index == IBM_SCSI2_FW) && (pos[6] != 0)) { + printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"); + printk(KERN_ERR " Impossible to determine adapter PUN!\n"); + printk(KERN_ERR " Guessing adapter PUN = 7.\n"); + id = 7; + } else { + id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */ + if (mca_dev->index == IBM_SCSI2_FW) { + id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit + * for F/W adapters */ + } } - id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */ - /* give detailed information on the subsystem. This helps me - * additionally during debugging and analyzing bug-reports. */ - printk(KERN_INFO "IBM MCA SCSI: IBM Integrated SCSI Controller ffound, io=0x%x, scsi id=%d,\n", port, id); - printk(KERN_INFO " chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n", ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible", (pos[2] & 1) ? "enabled." : "disabled."); - - /* register the found integrated SCSI-subsystem */ - if ((shpnt = ibmmca_register(scsi_template, port, id, INTEGRATED_SCSI, "IBM Integrated SCSI Controller"))) - { - for (k = 2; k < 7; k++) - ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k]; - ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = INTEGRATED_SCSI; - mca_set_adapter_name(MCA_INTEGSCSI, "IBM Integrated SCSI Controller"); - mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo, shpnt); - mca_mark_as_used(MCA_INTEGSCSI); - devices_on_irq_14++; + if ((mca_dev->index == IBM_SCSI2_FW) && + (pos[4] & 0x01) && (pos[6] == 0)) { + /* IRQ11 is used by SCSI-2 F/W Adapter/A */ + printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n"); + irq = IM_IRQ_FW; } } - /* now look for other adapters in MCA slots, */ - /* determine the number of known IBM-SCSI-subsystem types */ - /* see the pos[2] dependence to get the adapter port-offset. */ - for (i = 0; i < ARRAY_SIZE(subsys_list); i++) { - /* scan each slot for a fitting adapter id */ - slot = 0; /* start at slot 0 */ - while ((slot = mca_find_adapter(subsys_list[i].mca_id, slot)) - != MCA_NOTFOUND) { /* scan through all slots */ - for (j = 0; j < 8; j++) /* read the pos-information */ - pos[j] = mca_read_stored_pos(slot, j); - if ((pos[2] & 1) == 1) - /* is the subsystem chip enabled ? */ - /* (explanations see above) */ - port = IM_IO_PORT + ((pos[2] & 0x0e) << 2); - else { - /* anyway, set the portnumber and warn */ - port = IM_IO_PORT + ((pos[2] & 0x0e) << 2); - printk(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"); - printk(KERN_WARNING " SCSI-operations may not work.\n"); - } - if ((i == IBM_SCSI2_FW) && (pos[6] != 0)) { - printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"); - printk(KERN_ERR " Impossible to determine adapter PUN!\n"); - printk(KERN_ERR " Guessing adapter PUN = 7.\n"); - id = 7; - } else { - id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */ - if (i == IBM_SCSI2_FW) { - id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit - * for F/W adapters */ - } - } - if ((i == IBM_SCSI2_FW) && (pos[4] & 0x01) && (pos[6] == 0)) { - /* IRQ11 is used by SCSI-2 F/W Adapter/A */ - printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n"); - /* get interrupt request level */ - if (request_irq(IM_IRQ_FW, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts)) { - printk(KERN_ERR "IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ_FW); - } else - IRQ11_registered++; - } - printk(KERN_INFO "IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n", subsys_list[i].description, slot + 1, port, id); - if ((pos[2] & 0xf0) == 0xf0) - printk(KERN_DEBUG" ROM Addr.=off,"); - else - printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000); - printk(KERN_DEBUG " port-offset=0x%x, subsystem=%s\n", ((pos[2] & 0x0e) << 2), (pos[2] & 1) ? "enabled." : "disabled."); - - /* register the hostadapter */ - if ((shpnt = ibmmca_register(scsi_template, port, id, i, subsys_list[i].description))) { - for (k = 2; k < 8; k++) - ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k]; - ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = i; - mca_set_adapter_name(slot, subsys_list[i].description); - mca_set_adapter_procfn(slot, (MCA_ProcFn) ibmmca_getinfo, shpnt); - mca_mark_as_used(slot); - if ((i == IBM_SCSI2_FW) && (pos[4] & 0x01) && (pos[6] == 0)) - devices_on_irq_11++; - else - devices_on_irq_14++; - } - slot++; /* advance to next slot */ - } /* advance to next adapter id in the list of IBM-SCSI-subsystems */ - } - /* now check for SCSI-adapters, mapped to the integrated SCSI - * area. E.g. a W/Cache in MCA-slot 9(!). Do the check correct here, - * as this is a known effect on some models 95xx. */ - for (i = 0; i < ARRAY_SIZE(subsys_list); i++) { - /* scan each slot for a fitting adapter id */ - slot = mca_find_adapter(subsys_list[i].mca_id, MCA_INTEGSCSI); - if (slot != MCA_NOTFOUND) { /* scan through all slots */ - for (j = 0; j < 8; j++) /* read the pos-information */ - pos[j] = mca_read_stored_pos(slot, j); - if ((pos[2] & 1) == 1) { /* is the subsystem chip enabled ? */ - /* (explanations see above) */ - port = IM_IO_PORT + ((pos[2] & 0x0e) << 2); - } else { /* anyway, set the portnumber and warn */ - port = IM_IO_PORT + ((pos[2] & 0x0e) << 2); - printk(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"); - printk(KERN_WARNING " SCSI-operations may not work.\n"); - } - if ((i == IBM_SCSI2_FW) && (pos[6] != 0)) { - printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"); - printk(KERN_ERR " Impossible to determine adapter PUN!\n"); - printk(KERN_ERR " Guessing adapter PUN = 7.\n"); - id = 7; - } else { - id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */ - if (i == IBM_SCSI2_FW) - id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit - * for F/W adapters */ - } - if ((i == IBM_SCSI2_FW) && (pos[4] & 0x01) && (pos[6] == 0)) { - /* IRQ11 is used by SCSI-2 F/W Adapter/A */ - printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n"); - /* get interrupt request level */ - if (request_irq(IM_IRQ_FW, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts)) - printk(KERN_ERR "IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ_FW); - else - IRQ11_registered++; - } - printk(KERN_INFO "IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n", subsys_list[i].description, slot + 1, port, id); - if ((pos[2] & 0xf0) == 0xf0) - printk(KERN_DEBUG " ROM Addr.=off,"); - else - printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000); - printk(KERN_DEBUG " port-offset=0x%x, subsystem=%s\n", ((pos[2] & 0x0e) << 2), (pos[2] & 1) ? "enabled." : "disabled."); - - /* register the hostadapter */ - if ((shpnt = ibmmca_register(scsi_template, port, id, i, subsys_list[i].description))) { - for (k = 2; k < 7; k++) - ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k]; - ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = i; - mca_set_adapter_name(slot, subsys_list[i].description); - mca_set_adapter_procfn(slot, (MCA_ProcFn) ibmmca_getinfo, shpnt); - mca_mark_as_used(slot); - if ((i == IBM_SCSI2_FW) && (pos[4] & 0x01) && (pos[6] == 0)) - devices_on_irq_11++; - else - devices_on_irq_14++; - } - slot++; /* advance to next slot */ - } /* advance to next adapter id in the list of IBM-SCSI-subsystems */ - } - if (IRQ11_registered && !devices_on_irq_11) - free_irq(IM_IRQ_FW, hosts); /* no devices on IRQ 11 */ - if (IRQ14_registered && !devices_on_irq_14) - free_irq(IM_IRQ, hosts); /* no devices on IRQ 14 */ - if (!devices_on_irq_11 && !devices_on_irq_14) - printk(KERN_WARNING "IBM MCA SCSI: No IBM SCSI-subsystem adapter attached.\n"); - return found; /* return the number of found SCSI hosts. Should be 1 or 0. */ -} -static struct Scsi_Host *ibmmca_register(struct scsi_host_template * scsi_template, int port, int id, int adaptertype, char *hostname) -{ - struct Scsi_Host *shpnt; - int i, j; - unsigned int ctrl; + /* give detailed information on the subsystem. This helps me + * additionally during debugging and analyzing bug-reports. */ + printk(KERN_INFO "IBM MCA SCSI: %s found, io=0x%x, scsi id=%d,\n", + description, port, id); + if (mca_dev->slot == MCA_INTEGSCSI) + printk(KERN_INFO " chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n", ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible", (pos[2] & 1) ? "enabled." : "disabled."); + else { + if ((pos[2] & 0xf0) == 0xf0) + printk(KERN_DEBUG " ROM Addr.=off,"); + else + printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000); + + printk(KERN_DEBUG " port-offset=0x%x, subsystem=%s\n", ((pos[2] & 0x0e) << 2), (pos[2] & 1) ? "enabled." : "disabled."); + } /* check I/O region */ - if (!request_region(port, IM_N_IO_PORT, hostname)) { + if (!request_region(port, IM_N_IO_PORT, description)) { printk(KERN_ERR "IBM MCA SCSI: Unable to get I/O region 0x%x-0x%x (%d ports).\n", port, port + IM_N_IO_PORT - 1, IM_N_IO_PORT); - return NULL; + goto out_fail; } /* register host */ - shpnt = scsi_register(scsi_template, sizeof(struct ibmmca_hostdata)); + shpnt = scsi_host_alloc(&ibmmca_driver_template, + sizeof(struct ibmmca_hostdata)); if (!shpnt) { printk(KERN_ERR "IBM MCA SCSI: Unable to register host.\n"); - release_region(port, IM_N_IO_PORT); - return NULL; + goto out_release; + } + + dev_set_drvdata(dev, shpnt); + if(request_irq(irq, interrupt_handler, IRQF_SHARED, description, dev)) { + printk(KERN_ERR "IBM MCA SCSI: failed to request interrupt %d\n", irq); + goto out_free_host; } /* request I/O region */ - hosts[found] = shpnt; /* add new found hostadapter to the list */ - special(found) = adaptertype; /* important assignment or else crash! */ - subsystem_connector_size(found) = 0; /* preset slot-size */ - shpnt->irq = IM_IRQ; /* assign necessary stuff for the adapter */ + special(shpnt) = mca_dev->index; /* important assignment or else crash! */ + subsystem_connector_size(shpnt) = 0; /* preset slot-size */ + shpnt->irq = irq; /* assign necessary stuff for the adapter */ shpnt->io_port = port; shpnt->n_io_port = IM_N_IO_PORT; shpnt->this_id = id; shpnt->max_id = 8; /* 8 PUNs are default */ /* now, the SCSI-subsystem is connected to Linux */ - ctrl = (unsigned int) (inb(IM_CTR_REG(found))); /* get control-register status */ #ifdef IM_DEBUG_PROBE + ctrl = (unsigned int) (inb(IM_CTR_REG(found))); /* get control-register status */ printk("IBM MCA SCSI: Control Register contents: %x, status: %x\n", ctrl, inb(IM_STAT_REG(found))); printk("IBM MCA SCSI: This adapters' POS-registers: "); for (i = 0; i < 8; i++) printk("%x ", pos[i]); printk("\n"); #endif - reset_status(found) = IM_RESET_NOT_IN_PROGRESS; + reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS; for (i = 0; i < 16; i++) /* reset the tables */ for (j = 0; j < 8; j++) - get_ldn(found)[i][j] = MAX_LOG_DEV; + get_ldn(shpnt)[i][j] = MAX_LOG_DEV; /* check which logical devices exist */ /* after this line, local interrupting is possible: */ - local_checking_phase_flag(found) = 1; - check_devices(found, adaptertype); /* call by value, using the global variable hosts */ - local_checking_phase_flag(found) = 0; - found++; /* now increase index to be prepared for next found subsystem */ + local_checking_phase_flag(shpnt) = 1; + check_devices(shpnt, mca_dev->index); /* call by value, using the global variable hosts */ + local_checking_phase_flag(shpnt) = 0; + /* an ibm mca subsystem has been detected */ - return shpnt; + + for (k = 2; k < 7; k++) + ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k]; + ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = INTEGRATED_SCSI; + mca_device_set_name(mca_dev, description); + /* FIXME: NEED TO REPLUMB TO SYSFS + mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo, shpnt); + */ + mca_device_set_claim(mca_dev, 1); + if (scsi_add_host(shpnt, dev)) { + dev_printk(KERN_ERR, dev, "IBM MCA SCSI: scsi_add_host failed\n"); + goto out_free_host; + } + scsi_scan_host(shpnt); + + return 0; + out_free_host: + scsi_host_put(shpnt); + out_release: + release_region(port, IM_N_IO_PORT); + out_fail: + return ret; } -static int ibmmca_release(struct Scsi_Host *shpnt) +static int __devexit ibmmca_remove(struct device *dev) { + struct Scsi_Host *shpnt = dev_get_drvdata(dev); + scsi_remove_host(shpnt); release_region(shpnt->io_port, shpnt->n_io_port); - if (!(--found)) - free_irq(shpnt->irq, hosts); + free_irq(shpnt->irq, dev); return 0; } @@ -1805,33 +1706,24 @@ static int ibmmca_queuecommand(Scsi_Cmnd int current_ldn; int id, lun; int target; - int host_index; int max_pun; int i; - struct scatterlist *sl; + struct scatterlist *sg; shpnt = cmd->device->host; - /* search for the right hostadapter */ - for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++); - if (!hosts[host_index]) { /* invalid hostadapter descriptor address */ - cmd->result = DID_NO_CONNECT << 16; - if (done) - done(cmd); - return 0; - } - max_pun = subsystem_maxid(host_index); + max_pun = subsystem_maxid(shpnt); if (ibm_ansi_order) { target = max_pun - 1 - cmd->device->id; - if ((target <= subsystem_pun(host_index)) && (cmd->device->id <= subsystem_pun(host_index))) + if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt))) target--; - else if ((target >= subsystem_pun(host_index)) && (cmd->device->id >= subsystem_pun(host_index))) + else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt))) target++; } else target = cmd->device->id; /* if (target,lun) is NO LUN or not existing at all, return error */ - if ((get_scsi(host_index)[target][cmd->device->lun] == TYPE_NO_LUN) || (get_scsi(host_index)[target][cmd->device->lun] == TYPE_NO_DEVICE)) { + if ((get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_LUN) || (get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_DEVICE)) { cmd->result = DID_NO_CONNECT << 16; if (done) done(cmd); @@ -1839,16 +1731,16 @@ static int ibmmca_queuecommand(Scsi_Cmnd } /*if (target,lun) unassigned, do further checks... */ - ldn = get_ldn(host_index)[target][cmd->device->lun]; + ldn = get_ldn(shpnt)[target][cmd->device->lun]; if (ldn >= MAX_LOG_DEV) { /* on invalid ldn do special stuff */ if (ldn > MAX_LOG_DEV) { /* dynamical remapping if ldn unassigned */ - current_ldn = next_ldn(host_index); /* stop-value for one circle */ - while (ld(host_index)[next_ldn(host_index)].cmd) { /* search for a occupied, but not in */ + current_ldn = next_ldn(shpnt); /* stop-value for one circle */ + while (ld(shpnt)[next_ldn(shpnt)].cmd) { /* search for a occupied, but not in */ /* command-processing ldn. */ - next_ldn(host_index)++; - if (next_ldn(host_index) >= MAX_LOG_DEV) - next_ldn(host_index) = 7; - if (current_ldn == next_ldn(host_index)) { /* One circle done ? */ + next_ldn(shpnt)++; + if (next_ldn(shpnt) >= MAX_LOG_DEV) + next_ldn(shpnt) = 7; + if (current_ldn == next_ldn(shpnt)) { /* One circle done ? */ /* no non-processing ldn found */ scmd_printk(KERN_WARNING, cmd, "IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n" @@ -1864,56 +1756,56 @@ static int ibmmca_queuecommand(Scsi_Cmnd /* unmap non-processing ldn */ for (id = 0; id < max_pun; id++) for (lun = 0; lun < 8; lun++) { - if (get_ldn(host_index)[id][lun] == next_ldn(host_index)) { - get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE; - get_scsi(host_index)[id][lun] = TYPE_NO_DEVICE; + if (get_ldn(shpnt)[id][lun] == next_ldn(shpnt)) { + get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE; + get_scsi(shpnt)[id][lun] = TYPE_NO_DEVICE; /* unmap entry */ } } /* set reduced interrupt_handler-mode for checking */ - local_checking_phase_flag(host_index) = 1; + local_checking_phase_flag(shpnt) = 1; /* map found ldn to pun,lun */ - get_ldn(host_index)[target][cmd->device->lun] = next_ldn(host_index); + get_ldn(shpnt)[target][cmd->device->lun] = next_ldn(shpnt); /* change ldn to the right value, that is now next_ldn */ - ldn = next_ldn(host_index); + ldn = next_ldn(shpnt); /* unassign all ldns (pun,lun,ldn does not matter for remove) */ - immediate_assign(host_index, 0, 0, 0, REMOVE_LDN); + immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN); /* set only LDN for remapped device */ - immediate_assign(host_index, target, cmd->device->lun, ldn, SET_LDN); + immediate_assign(shpnt, target, cmd->device->lun, ldn, SET_LDN); /* get device information for ld[ldn] */ - if (device_exists(host_index, ldn, &ld(host_index)[ldn].block_length, &ld(host_index)[ldn].device_type)) { - ld(host_index)[ldn].cmd = NULL; /* To prevent panic set 0, because + if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) { + ld(shpnt)[ldn].cmd = NULL; /* To prevent panic set 0, because devices that were not assigned, should have nothing in progress. */ - get_scsi(host_index)[target][cmd->device->lun] = ld(host_index)[ldn].device_type; + get_scsi(shpnt)[target][cmd->device->lun] = ld(shpnt)[ldn].device_type; /* increase assignment counters for statistics in /proc */ - IBM_DS(host_index).dynamical_assignments++; - IBM_DS(host_index).ldn_assignments[ldn]++; + IBM_DS(shpnt).dynamical_assignments++; + IBM_DS(shpnt).ldn_assignments[ldn]++; } else /* panic here, because a device, found at boottime has vanished */ panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n", ldn, target, cmd->device->lun); /* unassign again all ldns (pun,lun,ldn does not matter for remove) */ - immediate_assign(host_index, 0, 0, 0, REMOVE_LDN); + immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN); /* remap all ldns, as written in the pun/lun table */ lun = 0; #ifdef CONFIG_SCSI_MULTI_LUN for (lun = 0; lun < 8; lun++) #endif for (id = 0; id < max_pun; id++) { - if (get_ldn(host_index)[id][lun] <= MAX_LOG_DEV) - immediate_assign(host_index, id, lun, get_ldn(host_index)[id][lun], SET_LDN); + if (get_ldn(shpnt)[id][lun] <= MAX_LOG_DEV) + immediate_assign(shpnt, id, lun, get_ldn(shpnt)[id][lun], SET_LDN); } /* set back to normal interrupt_handling */ - local_checking_phase_flag(host_index) = 0; + local_checking_phase_flag(shpnt) = 0; #ifdef IM_DEBUG_PROBE /* Information on syslog terminal */ printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n", ldn, target, cmd->device->lun); #endif /* increase next_ldn for next dynamical assignment */ - next_ldn(host_index)++; - if (next_ldn(host_index) >= MAX_LOG_DEV) - next_ldn(host_index) = 7; + next_ldn(shpnt)++; + if (next_ldn(shpnt) >= MAX_LOG_DEV) + next_ldn(shpnt) = 7; } else { /* wall against Linux accesses to the subsystem adapter */ cmd->result = DID_BAD_TARGET << 16; if (done) @@ -1923,34 +1815,32 @@ #endif } /*verify there is no command already in progress for this log dev */ - if (ld(host_index)[ldn].cmd) + if (ld(shpnt)[ldn].cmd) panic("IBM MCA SCSI: cmd already in progress for this ldn.\n"); /*save done in cmd, and save cmd for the interrupt handler */ cmd->scsi_done = done; - ld(host_index)[ldn].cmd = cmd; + ld(shpnt)[ldn].cmd = cmd; /*fill scb information independent of the scsi command */ - scb = &(ld(host_index)[ldn].scb); - ld(host_index)[ldn].tsb.dev_status = 0; + scb = &(ld(shpnt)[ldn].scb); + ld(shpnt)[ldn].tsb.dev_status = 0; scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE; - scb->tsb_adr = isa_virt_to_bus(&(ld(host_index)[ldn].tsb)); + scb->tsb_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].tsb)); scsi_cmd = cmd->cmnd[0]; - if (cmd->use_sg) { - i = cmd->use_sg; - sl = (struct scatterlist *) (cmd->request_buffer); - if (i > 16) - panic("IBM MCA SCSI: scatter-gather list too long.\n"); - while (--i >= 0) { - ld(host_index)[ldn].sge[i].address = (void *) (isa_page_to_bus(sl[i].page) + sl[i].offset); - ld(host_index)[ldn].sge[i].byte_length = sl[i].length; + if (scsi_sg_count(cmd)) { + BUG_ON(scsi_sg_count(cmd) > 16); + + scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) { + ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg->page) + sg->offset); + ld(shpnt)[ldn].sge[i].byte_length = sg->length; } scb->enable |= IM_POINTER_TO_LIST; - scb->sys_buf_adr = isa_virt_to_bus(&(ld(host_index)[ldn].sge[0])); - scb->sys_buf_length = cmd->use_sg * sizeof(struct im_sge); + scb->sys_buf_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].sge[0])); + scb->sys_buf_length = scsi_sg_count(cmd) * sizeof(struct im_sge); } else { - scb->sys_buf_adr = isa_virt_to_bus(cmd->request_buffer); + scb->sys_buf_adr = isa_virt_to_bus(scsi_sglist(cmd)); /* recent Linux midlevel SCSI places 1024 byte for inquiry * command. Far too much for old PS/2 hardware. */ switch (scsi_cmd) { @@ -1961,16 +1851,16 @@ #endif case REQUEST_SENSE: case MODE_SENSE: case MODE_SELECT: - if (cmd->request_bufflen > 255) + if (scsi_bufflen(cmd) > 255) scb->sys_buf_length = 255; else - scb->sys_buf_length = cmd->request_bufflen; + scb->sys_buf_length = scsi_bufflen(cmd); break; case TEST_UNIT_READY: scb->sys_buf_length = 0; break; default: - scb->sys_buf_length = cmd->request_bufflen; + scb->sys_buf_length = scsi_bufflen(cmd); break; } } @@ -1982,16 +1872,16 @@ #endif /* for specific device-type debugging: */ #ifdef IM_DEBUG_CMD_SPEC_DEV - if (ld(host_index)[ldn].device_type == IM_DEBUG_CMD_DEVICE) - printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n", ld(host_index)[ldn].device_type, scsi_cmd, ldn); + if (ld(shpnt)[ldn].device_type == IM_DEBUG_CMD_DEVICE) + printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n", ld(shpnt)[ldn].device_type, scsi_cmd, ldn); #endif /* for possible panics store current command */ - last_scsi_command(host_index)[ldn] = scsi_cmd; - last_scsi_type(host_index)[ldn] = IM_SCB; + last_scsi_command(shpnt)[ldn] = scsi_cmd; + last_scsi_type(shpnt)[ldn] = IM_SCB; /* update statistical info */ - IBM_DS(host_index).total_accesses++; - IBM_DS(host_index).ldn_access[ldn]++; + IBM_DS(shpnt).total_accesses++; + IBM_DS(shpnt).ldn_access[ldn]++; switch (scsi_cmd) { case READ_6: @@ -2003,17 +1893,17 @@ #endif /* Distinguish between disk and other devices. Only disks (that are the most frequently accessed devices) should be supported by the IBM-SCSI-Subsystem commands. */ - switch (ld(host_index)[ldn].device_type) { + switch (ld(shpnt)[ldn].device_type) { case TYPE_DISK: /* for harddisks enter here ... */ case TYPE_MOD: /* ... try it also for MO-drives (send flames as */ /* you like, if this won't work.) */ if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12) { /* read command preparations */ scb->enable |= IM_READ_CONTROL; - IBM_DS(host_index).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */ + IBM_DS(shpnt).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */ scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT; } else { /* write command preparations */ - IBM_DS(host_index).ldn_write_access[ldn]++; /* increase write-count on ldn stat. */ + IBM_DS(shpnt).ldn_write_access[ldn]++; /* increase write-count on ldn stat. */ scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT; } if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6) { @@ -2023,9 +1913,9 @@ #endif scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[5]) << 0) | (((unsigned) cmd->cmnd[4]) << 8) | (((unsigned) cmd->cmnd[3]) << 16) | (((unsigned) cmd->cmnd[2]) << 24); scb->u2.blk.count = (((unsigned) cmd->cmnd[8]) << 0) | (((unsigned) cmd->cmnd[7]) << 8); } - last_scsi_logical_block(host_index)[ldn] = scb->u1.log_blk_adr; - last_scsi_blockcount(host_index)[ldn] = scb->u2.blk.count; - scb->u2.blk.length = ld(host_index)[ldn].block_length; + last_scsi_logical_block(shpnt)[ldn] = scb->u1.log_blk_adr; + last_scsi_blockcount(shpnt)[ldn] = scb->u2.blk.count; + scb->u2.blk.length = ld(shpnt)[ldn].block_length; break; /* for other devices, enter here. Other types are not known by Linux! TYPE_NO_LUN is forbidden as valid device. */ @@ -2046,14 +1936,14 @@ #endif scb->enable |= IM_BYPASS_BUFFER; scb->u1.scsi_cmd_length = cmd->cmd_len; memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); - last_scsi_type(host_index)[ldn] = IM_LONG_SCB; + last_scsi_type(shpnt)[ldn] = IM_LONG_SCB; /* Read/write on this non-disk devices is also displayworthy, so flash-up the LED/display. */ break; } break; case INQUIRY: - IBM_DS(host_index).ldn_inquiry_access[ldn]++; + IBM_DS(shpnt).ldn_inquiry_access[ldn]++; scb->command = IM_DEVICE_INQUIRY_CMD; scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; scb->u1.log_blk_adr = 0; @@ -2064,7 +1954,7 @@ #endif scb->u1.log_blk_adr = 0; scb->u1.scsi_cmd_length = 6; memcpy(scb->u2.scsi_command, cmd->cmnd, 6); - last_scsi_type(host_index)[ldn] = IM_LONG_SCB; + last_scsi_type(shpnt)[ldn] = IM_LONG_SCB; break; case READ_CAPACITY: /* the length of system memory buffer must be exactly 8 bytes */ @@ -2081,12 +1971,12 @@ #endif /* Commands that need write-only-mode (system -> device): */ case MODE_SELECT: case MODE_SELECT_10: - IBM_DS(host_index).ldn_modeselect_access[ldn]++; + IBM_DS(shpnt).ldn_modeselect_access[ldn]++; scb->command = IM_OTHER_SCSI_CMD_CMD; scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled */ scb->u1.scsi_cmd_length = cmd->cmd_len; memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); - last_scsi_type(host_index)[ldn] = IM_LONG_SCB; + last_scsi_type(shpnt)[ldn] = IM_LONG_SCB; break; /* For other commands, read-only is useful. Most other commands are running without an input-data-block. */ @@ -2095,19 +1985,19 @@ #endif scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; scb->u1.scsi_cmd_length = cmd->cmd_len; memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); - last_scsi_type(host_index)[ldn] = IM_LONG_SCB; + last_scsi_type(shpnt)[ldn] = IM_LONG_SCB; break; } /*issue scb command, and return */ if (++disk_rw_in_progress == 1) PS2_DISK_LED_ON(shpnt->host_no, target); - if (last_scsi_type(host_index)[ldn] == IM_LONG_SCB) { - issue_cmd(host_index, isa_virt_to_bus(scb), IM_LONG_SCB | ldn); - IBM_DS(host_index).long_scbs++; + if (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB) { + issue_cmd(shpnt, isa_virt_to_bus(scb), IM_LONG_SCB | ldn); + IBM_DS(shpnt).long_scbs++; } else { - issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); - IBM_DS(host_index).scbs++; + issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn); + IBM_DS(shpnt).scbs++; } return 0; } @@ -2122,7 +2012,6 @@ static int __ibmmca_abort(Scsi_Cmnd * cm unsigned int ldn; void (*saved_done) (Scsi_Cmnd *); int target; - int host_index; int max_pun; unsigned long imm_command; @@ -2131,35 +2020,23 @@ #ifdef IM_DEBUG_PROBE #endif shpnt = cmd->device->host; - /* search for the right hostadapter */ - for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++); - if (!hosts[host_index]) { /* invalid hostadapter descriptor address */ - cmd->result = DID_NO_CONNECT << 16; - if (cmd->scsi_done) - (cmd->scsi_done) (cmd); - shpnt = cmd->device->host; -#ifdef IM_DEBUG_PROBE - printk(KERN_DEBUG "IBM MCA SCSI: Abort adapter selection failed!\n"); -#endif - return SUCCESS; - } - max_pun = subsystem_maxid(host_index); + max_pun = subsystem_maxid(shpnt); if (ibm_ansi_order) { target = max_pun - 1 - cmd->device->id; - if ((target <= subsystem_pun(host_index)) && (cmd->device->id <= subsystem_pun(host_index))) + if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt))) target--; - else if ((target >= subsystem_pun(host_index)) && (cmd->device->id >= subsystem_pun(host_index))) + else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt))) target++; } else target = cmd->device->id; /* get logical device number, and disable system interrupts */ printk(KERN_WARNING "IBM MCA SCSI: Sending abort to device pun=%d, lun=%d.\n", target, cmd->device->lun); - ldn = get_ldn(host_index)[target][cmd->device->lun]; + ldn = get_ldn(shpnt)[target][cmd->device->lun]; /*if cmd for this ldn has already finished, no need to abort */ - if (!ld(host_index)[ldn].cmd) { + if (!ld(shpnt)[ldn].cmd) { return SUCCESS; } @@ -2170,20 +2047,20 @@ #endif saved_done = cmd->scsi_done; cmd->scsi_done = internal_done; cmd->SCp.Status = 0; - last_scsi_command(host_index)[ldn] = IM_ABORT_IMM_CMD; - last_scsi_type(host_index)[ldn] = IM_IMM_CMD; - imm_command = inl(IM_CMD_REG(host_index)); + last_scsi_command(shpnt)[ldn] = IM_ABORT_IMM_CMD; + last_scsi_type(shpnt)[ldn] = IM_IMM_CMD; + imm_command = inl(IM_CMD_REG(shpnt)); imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */ imm_command |= (unsigned long) (IM_ABORT_IMM_CMD); /* must wait for attention reg not busy */ /* FIXME - timeout, politeness */ while (1) { - if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) + if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY)) break; } /* write registers and enable system interrupts */ - outl(imm_command, IM_CMD_REG(host_index)); - outb(IM_IMM_CMD | ldn, IM_ATTN_REG(host_index)); + outl(imm_command, IM_CMD_REG(shpnt)); + outb(IM_IMM_CMD | ldn, IM_ATTN_REG(shpnt)); #ifdef IM_DEBUG_PROBE printk("IBM MCA SCSI: Abort queued to adapter...\n"); #endif @@ -2202,7 +2079,7 @@ #endif cmd->result |= DID_ABORT << 16; if (cmd->scsi_done) (cmd->scsi_done) (cmd); - ld(host_index)[ldn].cmd = NULL; + ld(shpnt)[ldn].cmd = NULL; #ifdef IM_DEBUG_PROBE printk("IBM MCA SCSI: Abort finished with success.\n"); #endif @@ -2211,7 +2088,7 @@ #endif cmd->result |= DID_NO_CONNECT << 16; if (cmd->scsi_done) (cmd->scsi_done) (cmd); - ld(host_index)[ldn].cmd = NULL; + ld(shpnt)[ldn].cmd = NULL; #ifdef IM_DEBUG_PROBE printk("IBM MCA SCSI: Abort failed.\n"); #endif @@ -2236,71 +2113,65 @@ static int __ibmmca_host_reset(Scsi_Cmnd struct Scsi_Host *shpnt; Scsi_Cmnd *cmd_aid; int ticks, i; - int host_index; unsigned long imm_command; BUG_ON(cmd == NULL); ticks = IM_RESET_DELAY * HZ; shpnt = cmd->device->host; - /* search for the right hostadapter */ - for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++); - - if (!hosts[host_index]) /* invalid hostadapter descriptor address */ - return FAILED; - if (local_checking_phase_flag(host_index)) { + if (local_checking_phase_flag(shpnt)) { printk(KERN_WARNING "IBM MCA SCSI: unable to reset while checking devices.\n"); return FAILED; } /* issue reset immediate command to subsystem, and wait for interrupt */ printk("IBM MCA SCSI: resetting all devices.\n"); - reset_status(host_index) = IM_RESET_IN_PROGRESS; - last_scsi_command(host_index)[0xf] = IM_RESET_IMM_CMD; - last_scsi_type(host_index)[0xf] = IM_IMM_CMD; - imm_command = inl(IM_CMD_REG(host_index)); + reset_status(shpnt) = IM_RESET_IN_PROGRESS; + last_scsi_command(shpnt)[0xf] = IM_RESET_IMM_CMD; + last_scsi_type(shpnt)[0xf] = IM_IMM_CMD; + imm_command = inl(IM_CMD_REG(shpnt)); imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */ imm_command |= (unsigned long) (IM_RESET_IMM_CMD); /* must wait for attention reg not busy */ while (1) { - if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) + if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY)) break; spin_unlock_irq(shpnt->host_lock); yield(); spin_lock_irq(shpnt->host_lock); } /*write registers and enable system interrupts */ - outl(imm_command, IM_CMD_REG(host_index)); - outb(IM_IMM_CMD | 0xf, IM_ATTN_REG(host_index)); + outl(imm_command, IM_CMD_REG(shpnt)); + outb(IM_IMM_CMD | 0xf, IM_ATTN_REG(shpnt)); /* wait for interrupt finished or intr_stat register to be set, as the * interrupt will not be executed, while we are in here! */ /* FIXME: This is really really icky we so want a sleeping version of this ! */ - while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks && ((inb(IM_INTR_REG(host_index)) & 0x8f) != 0x8f)) { + while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks && ((inb(IM_INTR_REG(shpnt)) & 0x8f) != 0x8f)) { udelay((1 + 999 / HZ) * 1000); barrier(); } /* if reset did not complete, just return an error */ if (!ticks) { printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY); - reset_status(host_index) = IM_RESET_FINISHED_FAIL; + reset_status(shpnt) = IM_RESET_FINISHED_FAIL; return FAILED; } - if ((inb(IM_INTR_REG(host_index)) & 0x8f) == 0x8f) { + if ((inb(IM_INTR_REG(shpnt)) & 0x8f) == 0x8f) { /* analysis done by this routine and not by the intr-routine */ - if (inb(IM_INTR_REG(host_index)) == 0xaf) - reset_status(host_index) = IM_RESET_FINISHED_OK_NO_INT; - else if (inb(IM_INTR_REG(host_index)) == 0xcf) - reset_status(host_index) = IM_RESET_FINISHED_FAIL; + if (inb(IM_INTR_REG(shpnt)) == 0xaf) + reset_status(shpnt) = IM_RESET_FINISHED_OK_NO_INT; + else if (inb(IM_INTR_REG(shpnt)) == 0xcf) + reset_status(shpnt) = IM_RESET_FINISHED_FAIL; else /* failed, 4get it */ - reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS_NO_INT; - outb(IM_EOI | 0xf, IM_ATTN_REG(host_index)); + reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS_NO_INT; + outb(IM_EOI | 0xf, IM_ATTN_REG(shpnt)); } /* if reset failed, just return an error */ - if (reset_status(host_index) == IM_RESET_FINISHED_FAIL) { + if (reset_status(shpnt) == IM_RESET_FINISHED_FAIL) { printk(KERN_ERR "IBM MCA SCSI: reset failed.\n"); return FAILED; } @@ -2308,9 +2179,9 @@ static int __ibmmca_host_reset(Scsi_Cmnd /* so reset finished ok - call outstanding done's, and return success */ printk(KERN_INFO "IBM MCA SCSI: Reset successfully completed.\n"); for (i = 0; i < MAX_LOG_DEV; i++) { - cmd_aid = ld(host_index)[i].cmd; + cmd_aid = ld(shpnt)[i].cmd; if (cmd_aid && cmd_aid->scsi_done) { - ld(host_index)[i].cmd = NULL; + ld(shpnt)[i].cmd = NULL; cmd_aid->result = DID_RESET << 16; } } @@ -2351,46 +2222,46 @@ static int ibmmca_biosparam(struct scsi_ } /* calculate percentage of total accesses on a ldn */ -static int ldn_access_load(int host_index, int ldn) +static int ldn_access_load(struct Scsi_Host *shpnt, int ldn) { - if (IBM_DS(host_index).total_accesses == 0) + if (IBM_DS(shpnt).total_accesses == 0) return (0); - if (IBM_DS(host_index).ldn_access[ldn] == 0) + if (IBM_DS(shpnt).ldn_access[ldn] == 0) return (0); - return (IBM_DS(host_index).ldn_access[ldn] * 100) / IBM_DS(host_index).total_accesses; + return (IBM_DS(shpnt).ldn_access[ldn] * 100) / IBM_DS(shpnt).total_accesses; } /* calculate total amount of r/w-accesses */ -static int ldn_access_total_read_write(int host_index) +static int ldn_access_total_read_write(struct Scsi_Host *shpnt) { int a; int i; a = 0; for (i = 0; i <= MAX_LOG_DEV; i++) - a += IBM_DS(host_index).ldn_read_access[i] + IBM_DS(host_index).ldn_write_access[i]; + a += IBM_DS(shpnt).ldn_read_access[i] + IBM_DS(shpnt).ldn_write_access[i]; return (a); } -static int ldn_access_total_inquiry(int host_index) +static int ldn_access_total_inquiry(struct Scsi_Host *shpnt) { int a; int i; a = 0; for (i = 0; i <= MAX_LOG_DEV; i++) - a += IBM_DS(host_index).ldn_inquiry_access[i]; + a += IBM_DS(shpnt).ldn_inquiry_access[i]; return (a); } -static int ldn_access_total_modeselect(int host_index) +static int ldn_access_total_modeselect(struct Scsi_Host *shpnt) { int a; int i; a = 0; for (i = 0; i <= MAX_LOG_DEV; i++) - a += IBM_DS(host_index).ldn_modeselect_access[i]; + a += IBM_DS(shpnt).ldn_modeselect_access[i]; return (a); } @@ -2398,19 +2269,14 @@ static int ldn_access_total_modeselect(i static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout) { int len = 0; - int i, id, lun, host_index; + int i, id, lun; unsigned long flags; int max_pun; - for (i = 0; hosts[i] && hosts[i] != shpnt; i++); - spin_lock_irqsave(hosts[i]->host_lock, flags); /* Check it */ - host_index = i; - if (!shpnt) { - len += sprintf(buffer + len, "\nIBM MCA SCSI: Can't find adapter"); - return len; - } - max_pun = subsystem_maxid(host_index); + spin_lock_irqsave(shpnt->host_lock, flags); /* Check it */ + + max_pun = subsystem_maxid(shpnt); len += sprintf(buffer + len, "\n IBM-SCSI-Subsystem-Linux-Driver, Version %s\n\n\n", IBMMCA_SCSI_DRIVER_VERSION); len += sprintf(buffer + len, " SCSI Access-Statistics:\n"); @@ -2421,40 +2287,40 @@ #else len += sprintf(buffer + len, " Multiple LUN probing.....: No\n"); #endif len += sprintf(buffer + len, " This Hostnumber..........: %d\n", shpnt->host_no); - len += sprintf(buffer + len, " Base I/O-Port............: 0x%x\n", (unsigned int) (IM_CMD_REG(host_index))); + len += sprintf(buffer + len, " Base I/O-Port............: 0x%x\n", (unsigned int) (IM_CMD_REG(shpnt))); len += sprintf(buffer + len, " (Shared) IRQ.............: %d\n", IM_IRQ); - len += sprintf(buffer + len, " Total Interrupts.........: %d\n", IBM_DS(host_index).total_interrupts); - len += sprintf(buffer + len, " Total SCSI Accesses......: %d\n", IBM_DS(host_index).total_accesses); - len += sprintf(buffer + len, " Total short SCBs.........: %d\n", IBM_DS(host_index).scbs); - len += sprintf(buffer + len, " Total long SCBs..........: %d\n", IBM_DS(host_index).long_scbs); - len += sprintf(buffer + len, " Total SCSI READ/WRITE..: %d\n", ldn_access_total_read_write(host_index)); - len += sprintf(buffer + len, " Total SCSI Inquiries...: %d\n", ldn_access_total_inquiry(host_index)); - len += sprintf(buffer + len, " Total SCSI Modeselects.: %d\n", ldn_access_total_modeselect(host_index)); - len += sprintf(buffer + len, " Total SCSI other cmds..: %d\n", IBM_DS(host_index).total_accesses - ldn_access_total_read_write(host_index) - - ldn_access_total_modeselect(host_index) - - ldn_access_total_inquiry(host_index)); - len += sprintf(buffer + len, " Total SCSI command fails.: %d\n\n", IBM_DS(host_index).total_errors); + len += sprintf(buffer + len, " Total Interrupts.........: %d\n", IBM_DS(shpnt).total_interrupts); + len += sprintf(buffer + len, " Total SCSI Accesses......: %d\n", IBM_DS(shpnt).total_accesses); + len += sprintf(buffer + len, " Total short SCBs.........: %d\n", IBM_DS(shpnt).scbs); + len += sprintf(buffer + len, " Total long SCBs..........: %d\n", IBM_DS(shpnt).long_scbs); + len += sprintf(buffer + len, " Total SCSI READ/WRITE..: %d\n", ldn_access_total_read_write(shpnt)); + len += sprintf(buffer + len, " Total SCSI Inquiries...: %d\n", ldn_access_total_inquiry(shpnt)); + len += sprintf(buffer + len, " Total SCSI Modeselects.: %d\n", ldn_access_total_modeselect(shpnt)); + len += sprintf(buffer + len, " Total SCSI other cmds..: %d\n", IBM_DS(shpnt).total_accesses - ldn_access_total_read_write(shpnt) + - ldn_access_total_modeselect(shpnt) + - ldn_access_total_inquiry(shpnt)); + len += sprintf(buffer + len, " Total SCSI command fails.: %d\n\n", IBM_DS(shpnt).total_errors); len += sprintf(buffer + len, " Logical-Device-Number (LDN) Access-Statistics:\n"); len += sprintf(buffer + len, " LDN | Accesses [%%] | READ | WRITE | ASSIGNMENTS\n"); len += sprintf(buffer + len, " -----|--------------|-----------|-----------|--------------\n"); for (i = 0; i <= MAX_LOG_DEV; i++) - len += sprintf(buffer + len, " %2X | %3d | %8d | %8d | %8d\n", i, ldn_access_load(host_index, i), IBM_DS(host_index).ldn_read_access[i], IBM_DS(host_index).ldn_write_access[i], IBM_DS(host_index).ldn_assignments[i]); + len += sprintf(buffer + len, " %2X | %3d | %8d | %8d | %8d\n", i, ldn_access_load(shpnt, i), IBM_DS(shpnt).ldn_read_access[i], IBM_DS(shpnt).ldn_write_access[i], IBM_DS(shpnt).ldn_assignments[i]); len += sprintf(buffer + len, " -----------------------------------------------------------\n\n"); len += sprintf(buffer + len, " Dynamical-LDN-Assignment-Statistics:\n"); - len += sprintf(buffer + len, " Number of physical SCSI-devices..: %d (+ Adapter)\n", IBM_DS(host_index).total_scsi_devices); - len += sprintf(buffer + len, " Dynamical Assignment necessary...: %s\n", IBM_DS(host_index).dyn_flag ? "Yes" : "No "); - len += sprintf(buffer + len, " Next LDN to be assigned..........: 0x%x\n", next_ldn(host_index)); - len += sprintf(buffer + len, " Dynamical assignments done yet...: %d\n", IBM_DS(host_index).dynamical_assignments); + len += sprintf(buffer + len, " Number of physical SCSI-devices..: %d (+ Adapter)\n", IBM_DS(shpnt).total_scsi_devices); + len += sprintf(buffer + len, " Dynamical Assignment necessary...: %s\n", IBM_DS(shpnt).dyn_flag ? "Yes" : "No "); + len += sprintf(buffer + len, " Next LDN to be assigned..........: 0x%x\n", next_ldn(shpnt)); + len += sprintf(buffer + len, " Dynamical assignments done yet...: %d\n", IBM_DS(shpnt).dynamical_assignments); len += sprintf(buffer + len, "\n Current SCSI-Device-Mapping:\n"); len += sprintf(buffer + len, " Physical SCSI-Device Map Logical SCSI-Device Map\n"); len += sprintf(buffer + len, " ID\\LUN 0 1 2 3 4 5 6 7 ID\\LUN 0 1 2 3 4 5 6 7\n"); for (id = 0; id < max_pun; id++) { len += sprintf(buffer + len, " %2d ", id); for (lun = 0; lun < 8; lun++) - len += sprintf(buffer + len, "%2s ", ti_p(get_scsi(host_index)[id][lun])); + len += sprintf(buffer + len, "%2s ", ti_p(get_scsi(shpnt)[id][lun])); len += sprintf(buffer + len, " %2d ", id); for (lun = 0; lun < 8; lun++) - len += sprintf(buffer + len, "%2s ", ti_l(get_ldn(host_index)[id][lun])); + len += sprintf(buffer + len, "%2s ", ti_l(get_ldn(shpnt)[id][lun])); len += sprintf(buffer + len, "\n"); } @@ -2488,20 +2354,31 @@ static int option_setup(char *str) __setup("ibmmcascsi=", option_setup); -static struct scsi_host_template driver_template = { - .proc_name = "ibmmca", - .proc_info = ibmmca_proc_info, - .name = "IBM SCSI-Subsystem", - .detect = ibmmca_detect, - .release = ibmmca_release, - .queuecommand = ibmmca_queuecommand, - .eh_abort_handler = ibmmca_abort, - .eh_host_reset_handler = ibmmca_host_reset, - .bios_param = ibmmca_biosparam, - .can_queue = 16, - .this_id = 7, - .sg_tablesize = 16, - .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, +static struct mca_driver ibmmca_driver = { + .id_table = ibmmca_id_table, + .driver = { + .name = "ibmmca", + .bus = &mca_bus_type, + .probe = ibmmca_probe, + .remove = __devexit_p(ibmmca_remove), + }, }; -#include "scsi_module.c" + +static int __init ibmmca_init(void) +{ +#ifdef MODULE + /* If the driver is run as module, read from conf.modules or cmd-line */ + if (boot_options) + option_setup(boot_options); +#endif + + return mca_register_driver_integrated(&ibmmca_driver, MCA_INTEGSCSI); +} + +static void __exit ibmmca_exit(void) +{ + mca_unregister_driver(&ibmmca_driver); +} + +module_init(ibmmca_init); +module_exit(ibmmca_exit); diff --git a/drivers/scsi/ibmmca.h b/drivers/scsi/ibmmca.h deleted file mode 100644 index 017ee2f..0000000 --- a/drivers/scsi/ibmmca.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * Low Level Driver for the IBM Microchannel SCSI Subsystem - * (Headerfile, see Documentation/scsi/ibmmca.txt for description of the - * IBM MCA SCSI-driver. - * For use under the GNU General Public License within the Linux-kernel project. - * This include file works only correctly with kernel 2.4.0 or higher!!! */ - -#ifndef _IBMMCA_H -#define _IBMMCA_H - -/* Common forward declarations for all Linux-versions: */ - -/* Interfaces to the midlevel Linux SCSI driver */ -static int ibmmca_detect (struct scsi_host_template *); -static int ibmmca_release (struct Scsi_Host *); -static int ibmmca_queuecommand (Scsi_Cmnd *, void (*done) (Scsi_Cmnd *)); -static int ibmmca_abort (Scsi_Cmnd *); -static int ibmmca_host_reset (Scsi_Cmnd *); -static int ibmmca_biosparam (struct scsi_device *, struct block_device *, sector_t, int *); - -#endif /* _IBMMCA_H */ diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index b10eefe..b580af9 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1375,6 +1375,23 @@ static int ibmvscsi_slave_configure(stru return 0; } +/** + * ibmvscsi_change_queue_depth - Change the device's queue depth + * @sdev: scsi device struct + * @qdepth: depth to set + * + * Return value: + * actual depth set + **/ +static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) +{ + if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) + qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; + + scsi_adjust_queue_depth(sdev, 0, qdepth); + return sdev->queue_depth; +} + /* ------------------------------------------------------------ * sysfs attributes */ @@ -1521,6 +1538,7 @@ static struct scsi_host_template driver_ .eh_abort_handler = ibmvscsi_eh_abort_handler, .eh_device_reset_handler = ibmvscsi_eh_device_reset_handler, .slave_configure = ibmvscsi_slave_configure, + .change_queue_depth = ibmvscsi_change_queue_depth, .cmd_per_lun = 16, .can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT, .this_id = -1, diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h index 77cc1d4..727ca7c 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.h +++ b/drivers/scsi/ibmvscsi/ibmvscsi.h @@ -45,6 +45,7 @@ struct Scsi_Host; #define MAX_INDIRECT_BUFS 10 #define IBMVSCSI_MAX_REQUESTS_DEFAULT 100 +#define IBMVSCSI_MAX_CMDS_PER_LUN 64 /* ------------------------------------------------------------ * Data Structures diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c index 7e7635c..d9dfb69 100644 --- a/drivers/scsi/initio.c +++ b/drivers/scsi/initio.c @@ -3,7 +3,8 @@ * * Copyright (c) 1994-1998 Initio Corporation * Copyright (c) 1998 Bas Vermeulen - * All rights reserved. + * Copyright (c) 2004 Christoph Hellwig + * Copyright (c) 2007 Red Hat * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,38 +20,6 @@ * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * - * -------------------------------------------------------------------------- - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. * ************************************************************************* * @@ -70,14 +39,14 @@ * - Fix memory allocation problem * 03/04/98 hc - v1.01l * - Fix tape rewind which will hang the system problem - * - Set can_queue to tul_num_scb + * - Set can_queue to initio_num_scb * 06/25/98 hc - v1.01m * - Get it work for kernel version >= 2.1.75 - * - Dynamic assign SCSI bus reset holding time in init_tulip() + * - Dynamic assign SCSI bus reset holding time in initio_init() * 07/02/98 hc - v1.01n * - Support 0002134A * 08/07/98 hc - v1.01o - * - Change the tul_abort_srb routine to use scsi_done. <01> + * - Change the initio_abort_srb routine to use scsi_done. <01> * 09/07/98 hl - v1.02 * - Change the INI9100U define and proc_dir_entry to * reflect the newer Kernel 2.1.118, but the v1.o1o @@ -150,23 +119,13 @@ #ifdef DEBUG_i91u static unsigned int i91u_debug = DEBUG_DEFAULT; #endif -#define TUL_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) )) - -typedef struct PCI_ID_Struc { - unsigned short vendor_id; - unsigned short device_id; -} PCI_ID; - -static int tul_num_ch = 4; /* Maximum 4 adapters */ -static int tul_num_scb; -static int tul_tag_enable = 1; -static SCB *tul_scb; +static int initio_tag_enable = 1; #ifdef DEBUG_i91u static int setup_debug = 0; #endif -static void i91uSCBPost(BYTE * pHcb, BYTE * pScb); +static void i91uSCBPost(u8 * pHcb, u8 * pScb); /* PCI Devices supported by this driver */ static struct pci_device_id i91u_pci_devices[] = { @@ -184,74 +143,66 @@ #define DEBUG_QUEUE 0 #define DEBUG_STATE 0 #define INT_DISC 0 -/*--- external functions --*/ -static void tul_se2_wait(void); - -/*--- forward refrence ---*/ -static SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun); -static SCB *tul_find_done_scb(HCS * pCurHcb); - -static int tulip_main(HCS * pCurHcb); - -static int tul_next_state(HCS * pCurHcb); -static int tul_state_1(HCS * pCurHcb); -static int tul_state_2(HCS * pCurHcb); -static int tul_state_3(HCS * pCurHcb); -static int tul_state_4(HCS * pCurHcb); -static int tul_state_5(HCS * pCurHcb); -static int tul_state_6(HCS * pCurHcb); -static int tul_state_7(HCS * pCurHcb); -static int tul_xfer_data_in(HCS * pCurHcb); -static int tul_xfer_data_out(HCS * pCurHcb); -static int tul_xpad_in(HCS * pCurHcb); -static int tul_xpad_out(HCS * pCurHcb); -static int tul_status_msg(HCS * pCurHcb); - -static int tul_msgin(HCS * pCurHcb); -static int tul_msgin_sync(HCS * pCurHcb); -static int tul_msgin_accept(HCS * pCurHcb); -static int tul_msgout_reject(HCS * pCurHcb); -static int tul_msgin_extend(HCS * pCurHcb); - -static int tul_msgout_ide(HCS * pCurHcb); -static int tul_msgout_abort_targ(HCS * pCurHcb); -static int tul_msgout_abort_tag(HCS * pCurHcb); - -static int tul_bus_device_reset(HCS * pCurHcb); -static void tul_select_atn(HCS * pCurHcb, SCB * pCurScb); -static void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb); -static void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb); -static int int_tul_busfree(HCS * pCurHcb); -static int int_tul_scsi_rst(HCS * pCurHcb); -static int int_tul_bad_seq(HCS * pCurHcb); -static int int_tul_resel(HCS * pCurHcb); -static int tul_sync_done(HCS * pCurHcb); -static int wdtr_done(HCS * pCurHcb); -static int wait_tulip(HCS * pCurHcb); -static int tul_wait_done_disc(HCS * pCurHcb); -static int tul_wait_disc(HCS * pCurHcb); -static void tulip_scsi(HCS * pCurHcb); -static int tul_post_scsi_rst(HCS * pCurHcb); - -static void tul_se2_ew_en(WORD CurBase); -static void tul_se2_ew_ds(WORD CurBase); -static int tul_se2_rd_all(WORD CurBase); -static void tul_se2_update_all(WORD CurBase); /* setup default pattern */ -static void tul_read_eeprom(WORD CurBase); - - /* ---- INTERNAL VARIABLES ---- */ -static HCS tul_hcs[MAX_SUPPORTED_ADAPTERS]; -static INI_ADPT_STRUCT i91u_adpt[MAX_SUPPORTED_ADAPTERS]; - -/*NVRAM nvram, *nvramp = &nvram; */ +/*--- forward references ---*/ +static struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun); +static struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host); + +static int tulip_main(struct initio_host * host); + +static int initio_next_state(struct initio_host * host); +static int initio_state_1(struct initio_host * host); +static int initio_state_2(struct initio_host * host); +static int initio_state_3(struct initio_host * host); +static int initio_state_4(struct initio_host * host); +static int initio_state_5(struct initio_host * host); +static int initio_state_6(struct initio_host * host); +static int initio_state_7(struct initio_host * host); +static int initio_xfer_data_in(struct initio_host * host); +static int initio_xfer_data_out(struct initio_host * host); +static int initio_xpad_in(struct initio_host * host); +static int initio_xpad_out(struct initio_host * host); +static int initio_status_msg(struct initio_host * host); + +static int initio_msgin(struct initio_host * host); +static int initio_msgin_sync(struct initio_host * host); +static int initio_msgin_accept(struct initio_host * host); +static int initio_msgout_reject(struct initio_host * host); +static int initio_msgin_extend(struct initio_host * host); + +static int initio_msgout_ide(struct initio_host * host); +static int initio_msgout_abort_targ(struct initio_host * host); +static int initio_msgout_abort_tag(struct initio_host * host); + +static int initio_bus_device_reset(struct initio_host * host); +static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb); +static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb); +static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb); +static int int_initio_busfree(struct initio_host * host); +static int int_initio_scsi_rst(struct initio_host * host); +static int int_initio_bad_seq(struct initio_host * host); +static int int_initio_resel(struct initio_host * host); +static int initio_sync_done(struct initio_host * host); +static int wdtr_done(struct initio_host * host); +static int wait_tulip(struct initio_host * host); +static int initio_wait_done_disc(struct initio_host * host); +static int initio_wait_disc(struct initio_host * host); +static void tulip_scsi(struct initio_host * host); +static int initio_post_scsi_rst(struct initio_host * host); + +static void initio_se2_ew_en(unsigned long base); +static void initio_se2_ew_ds(unsigned long base); +static int initio_se2_rd_all(unsigned long base); +static void initio_se2_update_all(unsigned long base); /* setup default pattern */ +static void initio_read_eeprom(unsigned long base); + +/* ---- INTERNAL VARIABLES ---- */ + static NVRAM i91unvram; static NVRAM *i91unvramp; - - -static UCHAR i91udftNvRam[64] = +static u8 i91udftNvRam[64] = { -/*----------- header -----------*/ + /*----------- header -----------*/ 0x25, 0xc9, /* Signature */ 0x40, /* Size */ 0x01, /* Revision */ @@ -289,7 +240,7 @@ static UCHAR i91udftNvRam[64] = 0, 0}; /* - CheckSum - */ -static UCHAR tul_rate_tbl[8] = /* fast 20 */ +static u8 initio_rate_tbl[8] = /* fast 20 */ { /* nanosecond devide by 4 */ 12, /* 50ns, 20M */ @@ -302,53 +253,17 @@ static UCHAR tul_rate_tbl[8] = /* fast 2 62 /* 250ns, 4M */ }; -static void tul_do_pause(unsigned amount) -{ /* Pause for amount jiffies */ +static void initio_do_pause(unsigned amount) +{ + /* Pause for amount jiffies */ unsigned long the_time = jiffies + amount; - while (time_before_eq(jiffies, the_time)); + while (time_before_eq(jiffies, the_time)) + cpu_relax(); } /*-- forward reference --*/ -/******************************************************************* - Use memeory refresh time ~ 15us * 2 -********************************************************************/ -void tul_se2_wait(void) -{ -#if 1 - udelay(30); -#else - UCHAR readByte; - - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) { - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) - break; - } - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) != 0x10) - break; - } - } else { - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) - break; - } - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) != 0x10) - break; - } - } -#endif -} - - /****************************************************************** Input: instruction for Serial E2PROM @@ -379,1174 +294,1019 @@ #endif ******************************************************************/ -static void tul_se2_instr(WORD CurBase, UCHAR instr) + +/** + * initio_se2_instr - bitbang an instruction + * @base: Base of InitIO controller + * @instr: Instruction for serial E2PROM + * + * Bitbang an instruction out to the serial E2Prom + */ + +static void initio_se2_instr(unsigned long base, u8 instr) { int i; - UCHAR b; + u8 b; - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO); /* cs+start bit */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK | SE2DO); /* +CLK */ - tul_se2_wait(); + outb(SE2CS | SE2DO, base + TUL_NVRAM); /* cs+start bit */ + udelay(30); + outb(SE2CS | SE2CLK | SE2DO, base + TUL_NVRAM); /* +CLK */ + udelay(30); for (i = 0; i < 8; i++) { if (instr & 0x80) - b = SE2CS | SE2DO; /* -CLK+dataBit */ + b = SE2CS | SE2DO; /* -CLK+dataBit */ else - b = SE2CS; /* -CLK */ - TUL_WR(CurBase + TUL_NVRAM, b); - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, b | SE2CLK); /* +CLK */ - tul_se2_wait(); + b = SE2CS; /* -CLK */ + outb(b, base + TUL_NVRAM); + udelay(30); + outb(b | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); instr <<= 1; } - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - return; + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); } -/****************************************************************** - Function name : tul_se2_ew_en - Description : Enable erase/write state of serial EEPROM -******************************************************************/ -void tul_se2_ew_en(WORD CurBase) +/** + * initio_se2_ew_en - Enable erase/write + * @base: Base address of InitIO controller + * + * Enable erase/write state of serial EEPROM + */ +void initio_se2_ew_en(unsigned long base) { - tul_se2_instr(CurBase, 0x30); /* EWEN */ - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); - return; + initio_se2_instr(base, 0x30); /* EWEN */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); } -/************************************************************************ - Disable erase/write state of serial EEPROM -*************************************************************************/ -void tul_se2_ew_ds(WORD CurBase) +/** + * initio_se2_ew_ds - Disable erase/write + * @base: Base address of InitIO controller + * + * Disable erase/write state of serial EEPROM + */ +void initio_se2_ew_ds(unsigned long base) { - tul_se2_instr(CurBase, 0); /* EWDS */ - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); - return; + initio_se2_instr(base, 0); /* EWDS */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); } -/****************************************************************** - Input :address of Serial E2PROM - Output :value stored in Serial E2PROM -*******************************************************************/ -static USHORT tul_se2_rd(WORD CurBase, ULONG adr) +/** + * initio_se2_rd - read E2PROM word + * @base: Base of InitIO controller + * @addr: Address of word in E2PROM + * + * Read a word from the NV E2PROM device + */ +static u16 initio_se2_rd(unsigned long base, u8 addr) { - UCHAR instr, readByte; - USHORT readWord; + u8 instr, rb; + u16 val = 0; int i; - instr = (UCHAR) (adr | 0x80); - tul_se2_instr(CurBase, instr); /* READ INSTR */ - readWord = 0; + instr = (u8) (addr | 0x80); + initio_se2_instr(base, instr); /* READ INSTR */ for (i = 15; i >= 0; i--) { - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ /* sample data after the following edge of clock */ - readByte = TUL_RD(CurBase, TUL_NVRAM); - readByte &= SE2DI; - readWord += (readByte << i); - tul_se2_wait(); /* 6/20/95 */ + rb = inb(base + TUL_NVRAM); + rb &= SE2DI; + val += (rb << i); + udelay(30); /* 6/20/95 */ } - TUL_WR(CurBase + TUL_NVRAM, 0); /* no chip select */ - tul_se2_wait(); - return readWord; + outb(0, base + TUL_NVRAM); /* no chip select */ + udelay(30); + return val; } - -/****************************************************************** - Input: new value in Serial E2PROM, address of Serial E2PROM -*******************************************************************/ -static void tul_se2_wr(WORD CurBase, UCHAR adr, USHORT writeWord) +/** + * initio_se2_wr - read E2PROM word + * @base: Base of InitIO controller + * @addr: Address of word in E2PROM + * @val: Value to write + * + * Write a word to the NV E2PROM device. Used when recovering from + * a problem with the NV. + */ +static void initio_se2_wr(unsigned long base, u8 addr, u16 val) { - UCHAR readByte; - UCHAR instr; + u8 rb; + u8 instr; int i; - instr = (UCHAR) (adr | 0x40); - tul_se2_instr(CurBase, instr); /* WRITE INSTR */ + instr = (u8) (addr | 0x40); + initio_se2_instr(base, instr); /* WRITE INSTR */ for (i = 15; i >= 0; i--) { - if (writeWord & 0x8000) - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO); /* -CLK+dataBit 1 */ + if (val & 0x8000) + outb(SE2CS | SE2DO, base + TUL_NVRAM); /* -CLK+dataBit 1 */ else - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK+dataBit 0 */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - writeWord <<= 1; + outb(SE2CS, base + TUL_NVRAM); /* -CLK+dataBit 0 */ + udelay(30); + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + val <<= 1; } - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* +CS */ - tul_se2_wait(); + outb(SE2CS, base + TUL_NVRAM); /* +CS */ + udelay(30); for (;;) { - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - if ((readByte = TUL_RD(CurBase, TUL_NVRAM)) & SE2DI) + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); + if ((rb = inb(base + TUL_NVRAM)) & SE2DI) break; /* write complete */ } - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - return; + outb(0, base + TUL_NVRAM); /* -CS */ } +/** + * initio_se2_rd_all - read hostadapter NV configuration + * @base: Base address of InitIO controller + * + * Reads the E2PROM data into main memory. Ensures that the checksum + * and header marker are valid. Returns 1 on success -1 on error. + */ -/*********************************************************************** - Read SCSI H/A configuration parameters from serial EEPROM -************************************************************************/ -int tul_se2_rd_all(WORD CurBase) +static int initio_se2_rd_all(unsigned long base) { int i; - ULONG chksum = 0; - USHORT *np; + u16 chksum = 0; + u16 *np; i91unvramp = &i91unvram; - np = (USHORT *) i91unvramp; - for (i = 0; i < 32; i++) { - *np++ = tul_se2_rd(CurBase, i); - } + np = (u16 *) i91unvramp; + for (i = 0; i < 32; i++) + *np++ = initio_se2_rd(base, i); -/*--------------------Is signature "ini" ok ? ----------------*/ + /* Is signature "ini" ok ? */ if (i91unvramp->NVM_Signature != INI_SIGNATURE) return -1; -/*---------------------- Is ckecksum ok ? ----------------------*/ - np = (USHORT *) i91unvramp; + /* Is ckecksum ok ? */ + np = (u16 *) i91unvramp; for (i = 0; i < 31; i++) chksum += *np++; - if (i91unvramp->NVM_CheckSum != (USHORT) chksum) + if (i91unvramp->NVM_CheckSum != chksum) return -1; return 1; } - -/*********************************************************************** - Update SCSI H/A configuration parameters from serial EEPROM -************************************************************************/ -void tul_se2_update_all(WORD CurBase) +/** + * initio_se2_update_all - Update E2PROM + * @base: Base of InitIO controller + * + * Update the E2PROM by wrting any changes into the E2PROM + * chip, rewriting the checksum. + */ +static void initio_se2_update_all(unsigned long base) { /* setup default pattern */ int i; - ULONG chksum = 0; - USHORT *np, *np1; + u16 chksum = 0; + u16 *np, *np1; i91unvramp = &i91unvram; /* Calculate checksum first */ - np = (USHORT *) i91udftNvRam; + np = (u16 *) i91udftNvRam; for (i = 0; i < 31; i++) chksum += *np++; - *np = (USHORT) chksum; - tul_se2_ew_en(CurBase); /* Enable write */ + *np = chksum; + initio_se2_ew_en(base); /* Enable write */ - np = (USHORT *) i91udftNvRam; - np1 = (USHORT *) i91unvramp; + np = (u16 *) i91udftNvRam; + np1 = (u16 *) i91unvramp; for (i = 0; i < 32; i++, np++, np1++) { - if (*np != *np1) { - tul_se2_wr(CurBase, i, *np); - } + if (*np != *np1) + initio_se2_wr(base, i, *np); } - - tul_se2_ew_ds(CurBase); /* Disable write */ - return; + initio_se2_ew_ds(base); /* Disable write */ } -/************************************************************************* - Function name : read_eeprom -**************************************************************************/ -void tul_read_eeprom(WORD CurBase) -{ - UCHAR gctrl; - - i91unvramp = &i91unvram; -/*------Enable EEProm programming ---*/ - gctrl = TUL_RD(CurBase, TUL_GCTRL); - TUL_WR(CurBase + TUL_GCTRL, gctrl | TUL_GCTRL_EEPROM_BIT); - if (tul_se2_rd_all(CurBase) != 1) { - tul_se2_update_all(CurBase); /* setup default pattern */ - tul_se2_rd_all(CurBase); /* load again */ - } -/*------ Disable EEProm programming ---*/ - gctrl = TUL_RD(CurBase, TUL_GCTRL); - TUL_WR(CurBase + TUL_GCTRL, gctrl & ~TUL_GCTRL_EEPROM_BIT); -} /* read_eeprom */ +/** + * initio_read_eeprom - Retrieve configuration + * @base: Base of InitIO Host Adapter + * + * Retrieve the host adapter configuration data from E2Prom. If the + * data is invalid then the defaults are used and are also restored + * into the E2PROM. This forms the access point for the SCSI driver + * into the E2PROM layer, the other functions for the E2PROM are all + * internal use. + * + * Must be called single threaded, uses a shared global area. + */ -static int Addi91u_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt, - BYTE bBus, BYTE bDevice) +static void initio_read_eeprom(unsigned long base) { - int i, j; + u8 gctrl; - for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { - if (i91u_adpt[i].ADPT_BIOS < wBIOS) - continue; - if (i91u_adpt[i].ADPT_BIOS == wBIOS) { - if (i91u_adpt[i].ADPT_BASE == wBASE) { - if (i91u_adpt[i].ADPT_Bus != 0xFF) - return 1; - } else if (i91u_adpt[i].ADPT_BASE < wBASE) - continue; - } - for (j = MAX_SUPPORTED_ADAPTERS - 1; j > i; j--) { - i91u_adpt[j].ADPT_BASE = i91u_adpt[j - 1].ADPT_BASE; - i91u_adpt[j].ADPT_INTR = i91u_adpt[j - 1].ADPT_INTR; - i91u_adpt[j].ADPT_BIOS = i91u_adpt[j - 1].ADPT_BIOS; - i91u_adpt[j].ADPT_Bus = i91u_adpt[j - 1].ADPT_Bus; - i91u_adpt[j].ADPT_Device = i91u_adpt[j - 1].ADPT_Device; - } - i91u_adpt[i].ADPT_BASE = wBASE; - i91u_adpt[i].ADPT_INTR = bInterrupt; - i91u_adpt[i].ADPT_BIOS = wBIOS; - i91u_adpt[i].ADPT_Bus = bBus; - i91u_adpt[i].ADPT_Device = bDevice; - return 0; + i91unvramp = &i91unvram; + /* Enable EEProm programming */ + gctrl = inb(base + TUL_GCTRL); + outb(gctrl | TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL); + if (initio_se2_rd_all(base) != 1) { + initio_se2_update_all(base); /* setup default pattern */ + initio_se2_rd_all(base); /* load again */ } - return 1; + /* Disable EEProm programming */ + gctrl = inb(base + TUL_GCTRL); + outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL); } -static void init_i91uAdapter_table(void) -{ - int i; - - for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { /* Initialize adapter structure */ - i91u_adpt[i].ADPT_BIOS = 0xffff; - i91u_adpt[i].ADPT_BASE = 0xffff; - i91u_adpt[i].ADPT_INTR = 0xff; - i91u_adpt[i].ADPT_Bus = 0xff; - i91u_adpt[i].ADPT_Device = 0xff; - } - return; -} +/** + * initio_stop_bm - stop bus master + * @host: InitIO we are stopping + * + * Stop any pending DMA operation, aborting the DMA if neccessary + */ -static void tul_stop_bm(HCS * pCurHcb) +static void initio_stop_bm(struct initio_host * host) { - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO); + if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ + outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0); + while ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } -/***************************************************************************/ -static void get_tulipPCIConfig(HCS * pCurHcb, int ch_idx) -{ - pCurHcb->HCS_Base = i91u_adpt[ch_idx].ADPT_BASE; /* Supply base address */ - pCurHcb->HCS_BIOS = i91u_adpt[ch_idx].ADPT_BIOS; /* Supply BIOS address */ - pCurHcb->HCS_Intr = i91u_adpt[ch_idx].ADPT_INTR; /* Supply interrupt line */ - return; -} +/** + * initio_reset_scsi - Reset SCSI host controller + * @host: InitIO host to reset + * @seconds: Recovery time + * + * Perform a full reset of the SCSI subsystem. + */ -/***************************************************************************/ -static int tul_reset_scsi(HCS * pCurHcb, int seconds) +static int initio_reset_scsi(struct initio_host * host, int seconds) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_BUS); + outb(TSC_RST_BUS, host->addr + TUL_SCtrl0); - while (!((pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt)) & TSS_SCSIRST_INT)); - /* reset tulip chip */ + while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT)) + cpu_relax(); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, 0); + /* reset tulip chip */ + outb(0, host->addr + TUL_SSignal); /* Stall for a while, wait for target's firmware ready,make it 2 sec ! */ /* SONY 5200 tape drive won't work if only stall for 1 sec */ - tul_do_pause(seconds * HZ); - - TUL_RD(pCurHcb->HCS_Base, TUL_SInt); + /* FIXME: this is a very long busy wait right now */ + initio_do_pause(seconds * HZ); - return (SCSI_RESET_SUCCESS); + inb(host->addr + TUL_SInt); + return SCSI_RESET_SUCCESS; } -/***************************************************************************/ -static int init_tulip(HCS * pCurHcb, SCB * scbp, int tul_num_scb, - BYTE * pbBiosAdr, int seconds) +/** + * initio_init - set up an InitIO host adapter + * @host: InitIO host adapter + * @num_scbs: Number of SCBS + * @bios_addr: BIOS address + * + * Set up the host adapter and devices according to the configuration + * retrieved from the E2PROM. + * + * Locking: Calls E2PROM layer code which is not re-enterable so must + * run single threaded for now. + */ + +static void initio_init(struct initio_host * host, u8 *bios_addr) { int i; - BYTE *pwFlags; - BYTE *pbHeads; - SCB *pTmpScb, *pPrevScb = NULL; - - pCurHcb->HCS_NumScbs = tul_num_scb; - pCurHcb->HCS_Semaph = 1; - spin_lock_init(&pCurHcb->HCS_SemaphLock); - pCurHcb->HCS_JSStatus0 = 0; - pCurHcb->HCS_Scb = scbp; - pCurHcb->HCS_NxtPend = scbp; - pCurHcb->HCS_NxtAvail = scbp; - for (i = 0, pTmpScb = scbp; i < tul_num_scb; i++, pTmpScb++) { - pTmpScb->SCB_TagId = i; - if (i != 0) - pPrevScb->SCB_NxtScb = pTmpScb; - pPrevScb = pTmpScb; - } - pPrevScb->SCB_NxtScb = NULL; - pCurHcb->HCS_ScbEnd = pTmpScb; - pCurHcb->HCS_FirstAvail = scbp; - pCurHcb->HCS_LastAvail = pPrevScb; - spin_lock_init(&pCurHcb->HCS_AvailLock); - pCurHcb->HCS_FirstPend = NULL; - pCurHcb->HCS_LastPend = NULL; - pCurHcb->HCS_FirstBusy = NULL; - pCurHcb->HCS_LastBusy = NULL; - pCurHcb->HCS_FirstDone = NULL; - pCurHcb->HCS_LastDone = NULL; - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - - tul_read_eeprom(pCurHcb->HCS_Base); -/*---------- get H/A configuration -------------*/ + u8 *flags; + u8 *heads; + + /* Get E2Prom configuration */ + initio_read_eeprom(host->addr); if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8) - pCurHcb->HCS_MaxTar = 8; + host->max_tar = 8; else - pCurHcb->HCS_MaxTar = 16; + host->max_tar = 16; - pCurHcb->HCS_Config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1; + host->config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1; - pCurHcb->HCS_SCSI_ID = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID; - pCurHcb->HCS_IdMask = ~(1 << pCurHcb->HCS_SCSI_ID); + host->scsi_id = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID; + host->idmask = ~(1 << host->scsi_id); #ifdef CHK_PARITY /* Enable parity error response */ - TUL_WR(pCurHcb->HCS_Base + TUL_PCMD, TUL_RD(pCurHcb->HCS_Base, TUL_PCMD) | 0x40); + outb(inb(host->addr + TUL_PCMD) | 0x40, host->addr + TUL_PCMD); #endif /* Mask all the interrupt */ - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + outb(0x1F, host->addr + TUL_Mask); - tul_stop_bm(pCurHcb); + initio_stop_bm(host); /* --- Initialize the tulip --- */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_CHIP); + outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0); /* program HBA's SCSI ID */ - TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, pCurHcb->HCS_SCSI_ID << 4); + outb(host->scsi_id << 4, host->addr + TUL_SScsiId); /* Enable Initiator Mode ,phase latch,alternate sync period mode, disable SCSI reset */ - if (pCurHcb->HCS_Config & HCC_EN_PAR) - pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR); + if (host->config & HCC_EN_PAR) + host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR); else - pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_SConf1); + host->sconf1 = (TSC_INITDEFAULT); + outb(host->sconf1, host->addr + TUL_SConfig); - /* Enable HW reselect */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); + /* Enable HW reselect */ + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, 0); + outb(0, host->addr + TUL_SPeriod); /* selection time out = 250 ms */ - TUL_WR(pCurHcb->HCS_Base + TUL_STimeOut, 153); + outb(153, host->addr + TUL_STimeOut); -/*--------- Enable SCSI terminator -----*/ - TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, (pCurHcb->HCS_Config & (HCC_ACT_TERM1 | HCC_ACT_TERM2))); - TUL_WR(pCurHcb->HCS_Base + TUL_GCTRL1, - ((pCurHcb->HCS_Config & HCC_AUTO_TERM) >> 4) | (TUL_RD(pCurHcb->HCS_Base, TUL_GCTRL1) & 0xFE)); + /* Enable SCSI terminator */ + outb((host->config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)), + host->addr + TUL_XCtrl); + outb(((host->config & HCC_AUTO_TERM) >> 4) | + (inb(host->addr + TUL_GCTRL1) & 0xFE), + host->addr + TUL_GCTRL1); for (i = 0, - pwFlags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config), - pbHeads = pbBiosAdr + 0x180; - i < pCurHcb->HCS_MaxTar; - i++, pwFlags++) { - pCurHcb->HCS_Tcs[i].TCS_Flags = *pwFlags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE); - if (pCurHcb->HCS_Tcs[i].TCS_Flags & TCF_EN_255) - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63; + flags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config), + heads = bios_addr + 0x180; + i < host->max_tar; + i++, flags++) { + host->targets[i].flags = *flags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + if (host->targets[i].flags & TCF_EN_255) + host->targets[i].drv_flags = TCF_DRV_255_63; else - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0; - pCurHcb->HCS_Tcs[i].TCS_JS_Period = 0; - pCurHcb->HCS_Tcs[i].TCS_SConfig0 = pCurHcb->HCS_SConf1; - pCurHcb->HCS_Tcs[i].TCS_DrvHead = *pbHeads++; - if (pCurHcb->HCS_Tcs[i].TCS_DrvHead == 255) - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63; + host->targets[i].drv_flags = 0; + host->targets[i].js_period = 0; + host->targets[i].sconfig0 = host->sconf1; + host->targets[i].heads = *heads++; + if (host->targets[i].heads == 255) + host->targets[i].drv_flags = TCF_DRV_255_63; else - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0; - pCurHcb->HCS_Tcs[i].TCS_DrvSector = *pbHeads++; - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY; - pCurHcb->HCS_ActTags[i] = 0; - pCurHcb->HCS_MaxTags[i] = 0xFF; + host->targets[i].drv_flags = 0; + host->targets[i].sectors = *heads++; + host->targets[i].flags &= ~TCF_BUSY; + host->act_tags[i] = 0; + host->max_tags[i] = 0xFF; } /* for */ printk("i91u: PCI Base=0x%04X, IRQ=%d, BIOS=0x%04X0, SCSI ID=%d\n", - pCurHcb->HCS_Base, pCurHcb->HCS_Intr, - pCurHcb->HCS_BIOS, pCurHcb->HCS_SCSI_ID); -/*------------------- reset SCSI Bus ---------------------------*/ - if (pCurHcb->HCS_Config & HCC_SCSI_RESET) { - printk("i91u: Reset SCSI Bus ... \n"); - tul_reset_scsi(pCurHcb, seconds); + host->addr, host->irq, + host->bios_addr, host->scsi_id); + /* Reset SCSI Bus */ + if (host->config & HCC_SCSI_RESET) { + printk(KERN_INFO "i91u: Reset SCSI Bus ... \n"); + initio_reset_scsi(host, 10); } - TUL_WR(pCurHcb->HCS_Base + TUL_SCFG1, 0x17); - TUL_WR(pCurHcb->HCS_Base + TUL_SIntEnable, 0xE9); - return (0); + outb(0x17, host->addr + TUL_SCFG1); + outb(0xE9, host->addr + TUL_SIntEnable); } -/***************************************************************************/ -static SCB *tul_alloc_scb(HCS * hcsp) +/** + * initio_alloc_scb - Allocate an SCB + * @host: InitIO host we are allocating for + * + * Walk the SCB list for the controller and allocate a free SCB if + * one exists. + */ +static struct scsi_ctrl_blk *initio_alloc_scb(struct initio_host *host) { - SCB *pTmpScb; - ULONG flags; - spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags); - if ((pTmpScb = hcsp->HCS_FirstAvail) != NULL) { + struct scsi_ctrl_blk *scb; + unsigned long flags; + + spin_lock_irqsave(&host->avail_lock, flags); + if ((scb = host->first_avail) != NULL) { #if DEBUG_QUEUE - printk("find scb at %08lx\n", (ULONG) pTmpScb); + printk("find scb at %p\n", scb); #endif - if ((hcsp->HCS_FirstAvail = pTmpScb->SCB_NxtScb) == NULL) - hcsp->HCS_LastAvail = NULL; - pTmpScb->SCB_NxtScb = NULL; - pTmpScb->SCB_Status = SCB_RENT; + if ((host->first_avail = scb->next) == NULL) + host->last_avail = NULL; + scb->next = NULL; + scb->status = SCB_RENT; } - spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags); - return (pTmpScb); + spin_unlock_irqrestore(&host->avail_lock, flags); + return scb; } -/***************************************************************************/ -static void tul_release_scb(HCS * hcsp, SCB * scbp) +/** + * initio_release_scb - Release an SCB + * @host: InitIO host that owns the SCB + * @cmnd: SCB command block being returned + * + * Return an allocated SCB to the host free list + */ + +static void initio_release_scb(struct initio_host * host, struct scsi_ctrl_blk * cmnd) { - ULONG flags; + unsigned long flags; #if DEBUG_QUEUE - printk("Release SCB %lx; ", (ULONG) scbp); + printk("Release SCB %p; ", cmnd); #endif - spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags); - scbp->SCB_Srb = NULL; - scbp->SCB_Status = 0; - scbp->SCB_NxtScb = NULL; - if (hcsp->HCS_LastAvail != NULL) { - hcsp->HCS_LastAvail->SCB_NxtScb = scbp; - hcsp->HCS_LastAvail = scbp; + spin_lock_irqsave(&(host->avail_lock), flags); + cmnd->srb = NULL; + cmnd->status = 0; + cmnd->next = NULL; + if (host->last_avail != NULL) { + host->last_avail->next = cmnd; + host->last_avail = cmnd; } else { - hcsp->HCS_FirstAvail = scbp; - hcsp->HCS_LastAvail = scbp; + host->first_avail = cmnd; + host->last_avail = cmnd; } - spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags); + spin_unlock_irqrestore(&(host->avail_lock), flags); } /***************************************************************************/ -static void tul_append_pend_scb(HCS * pCurHcb, SCB * scbp) +static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("Append pend SCB %lx; ", (ULONG) scbp); + printk("Append pend SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_PEND; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastPend != NULL) { - pCurHcb->HCS_LastPend->SCB_NxtScb = scbp; - pCurHcb->HCS_LastPend = scbp; + scbp->status = SCB_PEND; + scbp->next = NULL; + if (host->last_pending != NULL) { + host->last_pending->next = scbp; + host->last_pending = scbp; } else { - pCurHcb->HCS_FirstPend = scbp; - pCurHcb->HCS_LastPend = scbp; + host->first_pending = scbp; + host->last_pending = scbp; } } /***************************************************************************/ -static void tul_push_pend_scb(HCS * pCurHcb, SCB * scbp) +static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("Push pend SCB %lx; ", (ULONG) scbp); + printk("Push pend SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_PEND; - if ((scbp->SCB_NxtScb = pCurHcb->HCS_FirstPend) != NULL) { - pCurHcb->HCS_FirstPend = scbp; + scbp->status = SCB_PEND; + if ((scbp->next = host->first_pending) != NULL) { + host->first_pending = scbp; } else { - pCurHcb->HCS_FirstPend = scbp; - pCurHcb->HCS_LastPend = scbp; + host->first_pending = scbp; + host->last_pending = scbp; } } -/***************************************************************************/ -static SCB *tul_find_first_pend_scb(HCS * pCurHcb) +static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host) { - SCB *pFirstPend; + struct scsi_ctrl_blk *first; - pFirstPend = pCurHcb->HCS_FirstPend; - while (pFirstPend != NULL) { - if (pFirstPend->SCB_Opcode != ExecSCSI) { - return (pFirstPend); - } - if (pFirstPend->SCB_TagMsg == 0) { - if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] == 0) && - !(pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) { - return (pFirstPend); - } + first = host->first_pending; + while (first != NULL) { + if (first->opcode != ExecSCSI) + return first; + if (first->tagmsg == 0) { + if ((host->act_tags[first->target] == 0) && + !(host->targets[first->target].flags & TCF_BUSY)) + return first; } else { - if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] >= - pCurHcb->HCS_MaxTags[pFirstPend->SCB_Target]) | - (pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) { - pFirstPend = pFirstPend->SCB_NxtScb; + if ((host->act_tags[first->target] >= + host->max_tags[first->target]) | + (host->targets[first->target].flags & TCF_BUSY)) { + first = first->next; continue; } - return (pFirstPend); + return first; } - pFirstPend = pFirstPend->SCB_NxtScb; + first = first->next; } - - - return (pFirstPend); + return first; } -/***************************************************************************/ -static void tul_unlink_pend_scb(HCS * pCurHcb, SCB * pCurScb) + +static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - SCB *pTmpScb, *pPrevScb; + struct scsi_ctrl_blk *tmp, *prev; #if DEBUG_QUEUE - printk("unlink pend SCB %lx; ", (ULONG) pCurScb); + printk("unlink pend SCB %p; ", scb); #endif - pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend; - while (pTmpScb != NULL) { - if (pCurScb == pTmpScb) { /* Unlink this SCB */ - if (pTmpScb == pCurHcb->HCS_FirstPend) { - if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastPend = NULL; + prev = tmp = host->first_pending; + while (tmp != NULL) { + if (scb == tmp) { /* Unlink this SCB */ + if (tmp == host->first_pending) { + if ((host->first_pending = tmp->next) == NULL) + host->last_pending = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastPend) - pCurHcb->HCS_LastPend = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; } - pTmpScb->SCB_NxtScb = NULL; + tmp->next = NULL; break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - return; } -/***************************************************************************/ -static void tul_append_busy_scb(HCS * pCurHcb, SCB * scbp) + +static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("append busy SCB %lx; ", (ULONG) scbp); + printk("append busy SCB %o; ", scbp); #endif - if (scbp->SCB_TagMsg) - pCurHcb->HCS_ActTags[scbp->SCB_Target]++; + if (scbp->tagmsg) + host->act_tags[scbp->target]++; else - pCurHcb->HCS_Tcs[scbp->SCB_Target].TCS_Flags |= TCF_BUSY; - scbp->SCB_Status = SCB_BUSY; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastBusy != NULL) { - pCurHcb->HCS_LastBusy->SCB_NxtScb = scbp; - pCurHcb->HCS_LastBusy = scbp; + host->targets[scbp->target].flags |= TCF_BUSY; + scbp->status = SCB_BUSY; + scbp->next = NULL; + if (host->last_busy != NULL) { + host->last_busy->next = scbp; + host->last_busy = scbp; } else { - pCurHcb->HCS_FirstBusy = scbp; - pCurHcb->HCS_LastBusy = scbp; + host->first_busy = scbp; + host->last_busy = scbp; } } /***************************************************************************/ -static SCB *tul_pop_busy_scb(HCS * pCurHcb) +static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host) { - SCB *pTmpScb; + struct scsi_ctrl_blk *tmp; - if ((pTmpScb = pCurHcb->HCS_FirstBusy) != NULL) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; - pTmpScb->SCB_NxtScb = NULL; - if (pTmpScb->SCB_TagMsg) - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; + if ((tmp = host->first_busy) != NULL) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; + tmp->next = NULL; + if (tmp->tagmsg) + host->act_tags[tmp->target]--; else - pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY; + host->targets[tmp->target].flags &= ~TCF_BUSY; } #if DEBUG_QUEUE - printk("Pop busy SCB %lx; ", (ULONG) pTmpScb); + printk("Pop busy SCB %p; ", tmp); #endif - return (pTmpScb); + return tmp; } /***************************************************************************/ -static void tul_unlink_busy_scb(HCS * pCurHcb, SCB * pCurScb) +static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - SCB *pTmpScb, *pPrevScb; + struct scsi_ctrl_blk *tmp, *prev; #if DEBUG_QUEUE - printk("unlink busy SCB %lx; ", (ULONG) pCurScb); + printk("unlink busy SCB %p; ", scb); #endif - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; - while (pTmpScb != NULL) { - if (pCurScb == pTmpScb) { /* Unlink this SCB */ - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + prev = tmp = host->first_busy; + while (tmp != NULL) { + if (scb == tmp) { /* Unlink this SCB */ + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_NxtScb = NULL; - if (pTmpScb->SCB_TagMsg) - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; + tmp->next = NULL; + if (tmp->tagmsg) + host->act_tags[tmp->target]--; else - pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY; + host->targets[tmp->target].flags &= ~TCF_BUSY; break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } return; } -/***************************************************************************/ -SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun) +struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun) { - SCB *pTmpScb, *pPrevScb; - WORD scbp_tarlun; + struct scsi_ctrl_blk *tmp, *prev; + u16 scbp_tarlun; - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; - while (pTmpScb != NULL) { - scbp_tarlun = (pTmpScb->SCB_Lun << 8) | (pTmpScb->SCB_Target); + prev = tmp = host->first_busy; + while (tmp != NULL) { + scbp_tarlun = (tmp->lun << 8) | (tmp->target); if (scbp_tarlun == tarlun) { /* Unlink this SCB */ break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } #if DEBUG_QUEUE - printk("find busy SCB %lx; ", (ULONG) pTmpScb); + printk("find busy SCB %p; ", tmp); #endif - return (pTmpScb); + return tmp; } -/***************************************************************************/ -static void tul_append_done_scb(HCS * pCurHcb, SCB * scbp) +static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { - #if DEBUG_QUEUE - printk("append done SCB %lx; ", (ULONG) scbp); + printk("append done SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_DONE; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastDone != NULL) { - pCurHcb->HCS_LastDone->SCB_NxtScb = scbp; - pCurHcb->HCS_LastDone = scbp; + scbp->status = SCB_DONE; + scbp->next = NULL; + if (host->last_done != NULL) { + host->last_done->next = scbp; + host->last_done = scbp; } else { - pCurHcb->HCS_FirstDone = scbp; - pCurHcb->HCS_LastDone = scbp; + host->first_done = scbp; + host->last_done = scbp; } } -/***************************************************************************/ -SCB *tul_find_done_scb(HCS * pCurHcb) +struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host) { - SCB *pTmpScb; + struct scsi_ctrl_blk *tmp; - - if ((pTmpScb = pCurHcb->HCS_FirstDone) != NULL) { - if ((pCurHcb->HCS_FirstDone = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastDone = NULL; - pTmpScb->SCB_NxtScb = NULL; + if ((tmp = host->first_done) != NULL) { + if ((host->first_done = tmp->next) == NULL) + host->last_done = NULL; + tmp->next = NULL; } #if DEBUG_QUEUE - printk("find done SCB %lx; ", (ULONG) pTmpScb); + printk("find done SCB %p; ",tmp); #endif - return (pTmpScb); + return tmp; } -/***************************************************************************/ -static int tul_abort_srb(HCS * pCurHcb, struct scsi_cmnd *srbp) +static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp) { - ULONG flags; - SCB *pTmpScb, *pPrevScb; + unsigned long flags; + struct scsi_ctrl_blk *tmp, *prev; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); + spin_lock_irqsave(&host->semaph_lock, flags); - if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + if ((host->semaph == 0) && (host->active == NULL)) { /* disable Jasmin SCSI Int */ - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - + outb(0x1F, host->addr + TUL_Mask); + spin_unlock_irqrestore(&host->semaph_lock, flags); + /* FIXME: synchronize_irq needed ? */ + tulip_main(host); + spin_lock_irqsave(&host->semaph_lock, flags); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SNOOZE; } - pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend; /* Check Pend queue */ - while (pTmpScb != NULL) { + prev = tmp = host->first_pending; /* Check Pend queue */ + while (tmp != NULL) { /* 07/27/98 */ - if (pTmpScb->SCB_Srb == srbp) { - if (pTmpScb == pCurHcb->HCS_ActScb) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + if (tmp->srb == srbp) { + if (tmp == host->active) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; - } else if (pTmpScb == pCurHcb->HCS_FirstPend) { - if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastPend = NULL; + } else if (tmp == host->first_pending) { + if ((host->first_pending = tmp->next) == NULL) + host->last_pending = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastPend) - pCurHcb->HCS_LastPend = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; } - pTmpScb->SCB_HaStat = HOST_ABORTED; - pTmpScb->SCB_Flags |= SCF_DONE; - if (pTmpScb->SCB_Flags & SCF_POST) - (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + tmp->hastat = HOST_ABORTED; + tmp->flags |= SCF_DONE; + if (tmp->flags & SCF_POST) + (*tmp->post) ((u8 *) host, (u8 *) tmp); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SUCCESS; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pTmpScb != NULL) { - - if (pTmpScb->SCB_Srb == srbp) { - - if (pTmpScb == pCurHcb->HCS_ActScb) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + prev = tmp = host->first_busy; /* Check Busy queue */ + while (tmp != NULL) { + if (tmp->srb == srbp) { + if (tmp == host->active) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; - } else if (pTmpScb->SCB_TagMsg == 0) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + } else if (tmp->tagmsg == 0) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; } else { - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + host->act_tags[tmp->target]--; + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_NxtScb = NULL; + tmp->next = NULL; - pTmpScb->SCB_HaStat = HOST_ABORTED; - pTmpScb->SCB_Flags |= SCF_DONE; - if (pTmpScb->SCB_Flags & SCF_POST) - (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + tmp->hastat = HOST_ABORTED; + tmp->flags |= SCF_DONE; + if (tmp->flags & SCF_POST) + (*tmp->post) ((u8 *) host, (u8 *) tmp); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SUCCESS; } } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return (SCSI_ABORT_NOT_RUNNING); + spin_unlock_irqrestore(&host->semaph_lock, flags); + return SCSI_ABORT_NOT_RUNNING; } /***************************************************************************/ -static int tul_bad_seq(HCS * pCurHcb) +static int initio_bad_seq(struct initio_host * host) { - SCB *pCurScb; - - printk("tul_bad_seg c=%d\n", pCurHcb->HCS_Index); - - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) { - tul_unlink_busy_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - pCurScb->SCB_TaStat = 0; - tul_append_done_scb(pCurHcb, pCurScb); - } - tul_stop_bm(pCurHcb); - - tul_reset_scsi(pCurHcb, 8); /* 7/29/98 */ - - return (tul_post_scsi_rst(pCurHcb)); -} - -#if 0 - -/************************************************************************/ -static int tul_device_reset(HCS * pCurHcb, struct scsi_cmnd *pSrb, - unsigned int target, unsigned int ResetFlags) -{ - ULONG flags; - SCB *pScb; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - if (ResetFlags & SCSI_RESET_ASYNCHRONOUS) { - - if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - return SCSI_RESET_SNOOZE; - } - pScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pScb != NULL) { - if (pScb->SCB_Srb == pSrb) - break; - pScb = pScb->SCB_NxtScb; - } - if (pScb == NULL) { - printk("Unable to Reset - No SCB Found\n"); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_NOT_RUNNING; - } - } - if ((pScb = tul_alloc_scb(pCurHcb)) == NULL) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_NOT_RUNNING; - } - pScb->SCB_Opcode = BusDevRst; - pScb->SCB_Flags = SCF_POST; - pScb->SCB_Target = target; - pScb->SCB_Mode = 0; - - pScb->SCB_Srb = NULL; - if (ResetFlags & SCSI_RESET_SYNCHRONOUS) { - pScb->SCB_Srb = pSrb; - } - tul_push_pend_scb(pCurHcb, pScb); /* push this SCB to Pending queue */ - - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + struct scsi_ctrl_blk *scb; - tulip_main(pCurHcb); + printk("initio_bad_seg c=%d\n", host->index); - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); + if ((scb = host->active) != NULL) { + initio_unlink_busy_scb(host, scb); + scb->hastat = HOST_BAD_PHAS; + scb->tastat = 0; + initio_append_done_scb(host, scb); } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_PENDING; + initio_stop_bm(host); + initio_reset_scsi(host, 8); /* 7/29/98 */ + return initio_post_scsi_rst(host); } -static int tul_reset_scsi_bus(HCS * pCurHcb) -{ - ULONG flags; - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tul_stop_bm(pCurHcb); - - tul_reset_scsi(pCurHcb, 2); /* 7/29/98 */ - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - tul_post_scsi_rst(pCurHcb); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return (SCSI_RESET_SUCCESS | SCSI_RESET_HOST_RESET); -} - -#endif /* 0 */ /************************************************************************/ -static void tul_exec_scb(HCS * pCurHcb, SCB * pCurScb) +static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - ULONG flags; + unsigned long flags; - pCurScb->SCB_Mode = 0; + scb->mode = 0; - pCurScb->SCB_SGIdx = 0; - pCurScb->SCB_SGMax = pCurScb->SCB_SGLen; + scb->sgidx = 0; + scb->sgmax = scb->sglen; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); + spin_lock_irqsave(&host->semaph_lock, flags); - tul_append_pend_scb(pCurHcb, pCurScb); /* Append this SCB to Pending queue */ + initio_append_pend_scb(host, scb); /* Append this SCB to Pending queue */ /* VVVVV 07/21/98 */ - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + if (host->semaph == 1) { + /* Disable Jasmin SCSI Int */ + outb(0x1F, host->addr + TUL_Mask); + host->semaph = 0; + spin_unlock_irqrestore(&host->semaph_lock, flags); - tulip_main(pCurHcb); + tulip_main(host); - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); + spin_lock_irqsave(&host->semaph_lock, flags); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + spin_unlock_irqrestore(&host->semaph_lock, flags); return; } /***************************************************************************/ -static int tul_isr(HCS * pCurHcb) +static int initio_isr(struct initio_host * host) { - /* Enter critical section */ - - if (TUL_RD(pCurHcb->HCS_Base, TUL_Int) & TSS_INT_PENDING) { - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) { + if (host->semaph == 1) { + outb(0x1F, host->addr + TUL_Mask); /* Disable Tulip SCSI Int */ - pCurHcb->HCS_Semaph = 0; + host->semaph = 0; - tulip_main(pCurHcb); + tulip_main(host); - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - return (1); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); + return 1; } } - return (0); + return 0; } -/***************************************************************************/ -int tulip_main(HCS * pCurHcb) +static int tulip_main(struct initio_host * host) { - SCB *pCurScb; + struct scsi_ctrl_blk *scb; for (;;) { - - tulip_scsi(pCurHcb); /* Call tulip_scsi */ - - while ((pCurScb = tul_find_done_scb(pCurHcb)) != NULL) { /* find done entry */ - if (pCurScb->SCB_TaStat == INI_QUEUE_FULL) { - pCurHcb->HCS_MaxTags[pCurScb->SCB_Target] = - pCurHcb->HCS_ActTags[pCurScb->SCB_Target] - 1; - pCurScb->SCB_TaStat = 0; - tul_append_pend_scb(pCurHcb, pCurScb); + tulip_scsi(host); /* Call tulip_scsi */ + + /* Walk the list of completed SCBs */ + while ((scb = initio_find_done_scb(host)) != NULL) { /* find done entry */ + if (scb->tastat == INI_QUEUE_FULL) { + host->max_tags[scb->target] = + host->act_tags[scb->target] - 1; + scb->tastat = 0; + initio_append_pend_scb(host, scb); continue; } - if (!(pCurScb->SCB_Mode & SCM_RSENS)) { /* not in auto req. sense mode */ - if (pCurScb->SCB_TaStat == 2) { + if (!(scb->mode & SCM_RSENS)) { /* not in auto req. sense mode */ + if (scb->tastat == 2) { /* clr sync. nego flag */ - if (pCurScb->SCB_Flags & SCF_SENSE) { - BYTE len; - len = pCurScb->SCB_SenseLen; + if (scb->flags & SCF_SENSE) { + u8 len; + len = scb->senselen; if (len == 0) len = 1; - pCurScb->SCB_BufLen = pCurScb->SCB_SenseLen; - pCurScb->SCB_BufPtr = pCurScb->SCB_SensePtr; - pCurScb->SCB_Flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */ -/* pCurScb->SCB_Flags |= SCF_NO_DCHK; */ - /* so, we won't report worng direction in xfer_data_in, + scb->buflen = scb->senselen; + scb->bufptr = scb->senseptr; + scb->flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */ + /* so, we won't report wrong direction in xfer_data_in, and won't report HOST_DO_DU in state_6 */ - pCurScb->SCB_Mode = SCM_RSENS; - pCurScb->SCB_Ident &= 0xBF; /* Disable Disconnect */ - pCurScb->SCB_TagMsg = 0; - pCurScb->SCB_TaStat = 0; - pCurScb->SCB_CDBLen = 6; - pCurScb->SCB_CDB[0] = SCSICMD_RequestSense; - pCurScb->SCB_CDB[1] = 0; - pCurScb->SCB_CDB[2] = 0; - pCurScb->SCB_CDB[3] = 0; - pCurScb->SCB_CDB[4] = len; - pCurScb->SCB_CDB[5] = 0; - tul_push_pend_scb(pCurHcb, pCurScb); + scb->mode = SCM_RSENS; + scb->ident &= 0xBF; /* Disable Disconnect */ + scb->tagmsg = 0; + scb->tastat = 0; + scb->cdblen = 6; + scb->cdb[0] = SCSICMD_RequestSense; + scb->cdb[1] = 0; + scb->cdb[2] = 0; + scb->cdb[3] = 0; + scb->cdb[4] = len; + scb->cdb[5] = 0; + initio_push_pend_scb(host, scb); break; } } } else { /* in request sense mode */ - if (pCurScb->SCB_TaStat == 2) { /* check contition status again after sending + if (scb->tastat == 2) { /* check contition status again after sending requset sense cmd 0x3 */ - pCurScb->SCB_HaStat = HOST_BAD_PHAS; + scb->hastat = HOST_BAD_PHAS; } - pCurScb->SCB_TaStat = 2; + scb->tastat = 2; } - pCurScb->SCB_Flags |= SCF_DONE; - if (pCurScb->SCB_Flags & SCF_POST) { - (*pCurScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pCurScb); + scb->flags |= SCF_DONE; + if (scb->flags & SCF_POST) { + /* FIXME: only one post method and lose casts */ + (*scb->post) ((u8 *) host, (u8 *) scb); } } /* while */ - /* find_active: */ - if (TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0) & TSS_INT_PENDING) + if (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING) continue; - - if (pCurHcb->HCS_ActScb) { /* return to OS and wait for xfer_done_ISR/Selected_ISR */ + if (host->active) /* return to OS and wait for xfer_done_ISR/Selected_ISR */ return 1; /* return to OS, enable interrupt */ - } /* Check pending SCB */ - if (tul_find_first_pend_scb(pCurHcb) == NULL) { + if (initio_find_first_pend_scb(host) == NULL) return 1; /* return to OS, enable interrupt */ - } } /* End of for loop */ /* statement won't reach here */ } - - - -/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ -/***************************************************************************/ -/***************************************************************************/ -/***************************************************************************/ -/***************************************************************************/ - -/***************************************************************************/ -void tulip_scsi(HCS * pCurHcb) +static void tulip_scsi(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; /* make sure to service interrupt asap */ - - if ((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) & TSS_INT_PENDING) { - - pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK; - pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* SCSI bus reset detected */ - int_tul_scsi_rst(pCurHcb); + if ((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING) { + host->phase = host->jsstatus0 & TSS_PH_MASK; + host->jsstatus1 = inb(host->addr + TUL_SStatus1); + host->jsint = inb(host->addr + TUL_SInt); + if (host->jsint & TSS_SCSIRST_INT) { /* SCSI bus reset detected */ + int_initio_scsi_rst(host); return; } - if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) { /* if selected/reselected interrupt */ - if (int_tul_resel(pCurHcb) == 0) - tul_next_state(pCurHcb); + if (host->jsint & TSS_RESEL_INT) { /* if selected/reselected interrupt */ + if (int_initio_resel(host) == 0) + initio_next_state(host); return; } - if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) { - int_tul_busfree(pCurHcb); + if (host->jsint & TSS_SEL_TIMEOUT) { + int_initio_busfree(host); return; } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - int_tul_busfree(pCurHcb); /* unexpected bus free or sel timeout */ + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + int_initio_busfree(host); /* unexpected bus free or sel timeout */ return; } - if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */ - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) - tul_next_state(pCurHcb); + if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */ + if ((scb = host->active) != NULL) + initio_next_state(host); return; } } - if (pCurHcb->HCS_ActScb != NULL) + if (host->active != NULL) return; - if ((pCurScb = tul_find_first_pend_scb(pCurHcb)) == NULL) + if ((scb = initio_find_first_pend_scb(host)) == NULL) return; /* program HBA's SCSI ID & target SCSI ID */ - TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, - (pCurHcb->HCS_SCSI_ID << 4) | (pCurScb->SCB_Target & 0x0F)); - if (pCurScb->SCB_Opcode == ExecSCSI) { - pCurTcb = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; + outb((host->scsi_id << 4) | (scb->target & 0x0F), + host->addr + TUL_SScsiId); + if (scb->opcode == ExecSCSI) { + active_tc = &host->targets[scb->target]; - if (pCurScb->SCB_TagMsg) - pCurTcb->TCS_DrvFlags |= TCF_DRV_EN_TAG; + if (scb->tagmsg) + active_tc->drv_flags |= TCF_DRV_EN_TAG; else - pCurTcb->TCS_DrvFlags &= ~TCF_DRV_EN_TAG; + active_tc->drv_flags &= ~TCF_DRV_EN_TAG; - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period); - if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { /* do wdtr negotiation */ - tul_select_atn_stop(pCurHcb, pCurScb); + outb(active_tc->js_period, host->addr + TUL_SPeriod); + if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { /* do wdtr negotiation */ + initio_select_atn_stop(host, scb); } else { - if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */ - tul_select_atn_stop(pCurHcb, pCurScb); + if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */ + initio_select_atn_stop(host, scb); } else { - if (pCurScb->SCB_TagMsg) - tul_select_atn3(pCurHcb, pCurScb); + if (scb->tagmsg) + initio_select_atn3(host, scb); else - tul_select_atn(pCurHcb, pCurScb); + initio_select_atn(host, scb); } } - if (pCurScb->SCB_Flags & SCF_POLL) { - while (wait_tulip(pCurHcb) != -1) { - if (tul_next_state(pCurHcb) == -1) + if (scb->flags & SCF_POLL) { + while (wait_tulip(host) != -1) { + if (initio_next_state(host) == -1) break; } } - } else if (pCurScb->SCB_Opcode == BusDevRst) { - tul_select_atn_stop(pCurHcb, pCurScb); - pCurScb->SCB_NxtStat = 8; - if (pCurScb->SCB_Flags & SCF_POLL) { - while (wait_tulip(pCurHcb) != -1) { - if (tul_next_state(pCurHcb) == -1) + } else if (scb->opcode == BusDevRst) { + initio_select_atn_stop(host, scb); + scb->next_state = 8; + if (scb->flags & SCF_POLL) { + while (wait_tulip(host) != -1) { + if (initio_next_state(host) == -1) break; } } - } else if (pCurScb->SCB_Opcode == AbortCmd) { - if (tul_abort_srb(pCurHcb, pCurScb->SCB_Srb) != 0) { - - - tul_unlink_pend_scb(pCurHcb, pCurScb); - - tul_release_scb(pCurHcb, pCurScb); + } else if (scb->opcode == AbortCmd) { + if (initio_abort_srb(host, scb->srb) != 0) { + initio_unlink_pend_scb(host, scb); + initio_release_scb(host, scb); } else { - pCurScb->SCB_Opcode = BusDevRst; - tul_select_atn_stop(pCurHcb, pCurScb); - pCurScb->SCB_NxtStat = 8; + scb->opcode = BusDevRst; + initio_select_atn_stop(host, scb); + scb->next_state = 8; } - -/* 08/03/98 */ } else { - tul_unlink_pend_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = 0x16; /* bad command */ - tul_append_done_scb(pCurHcb, pCurScb); + initio_unlink_pend_scb(host, scb); + scb->hastat = 0x16; /* bad command */ + initio_append_done_scb(host, scb); } return; } +/** + * initio_next_state - Next SCSI state + * @host: InitIO host we are processing + * + * Progress the active command block along the state machine + * until we hit a state which we must wait for activity to occur. + * + * Returns zero or a negative code. + */ -/***************************************************************************/ -int tul_next_state(HCS * pCurHcb) +static int initio_next_state(struct initio_host * host) { int next; - next = pCurHcb->HCS_ActScb->SCB_NxtStat; + next = host->active->next_state; for (;;) { switch (next) { case 1: - next = tul_state_1(pCurHcb); + next = initio_state_1(host); break; case 2: - next = tul_state_2(pCurHcb); + next = initio_state_2(host); break; case 3: - next = tul_state_3(pCurHcb); + next = initio_state_3(host); break; case 4: - next = tul_state_4(pCurHcb); + next = initio_state_4(host); break; case 5: - next = tul_state_5(pCurHcb); + next = initio_state_5(host); break; case 6: - next = tul_state_6(pCurHcb); + next = initio_state_6(host); break; case 7: - next = tul_state_7(pCurHcb); + next = initio_state_7(host); break; case 8: - return (tul_bus_device_reset(pCurHcb)); + return initio_bus_device_reset(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } if (next <= 0) return next; @@ -1554,338 +1314,363 @@ int tul_next_state(HCS * pCurHcb) } -/***************************************************************************/ -/* sTate after selection with attention & stop */ -int tul_state_1(HCS * pCurHcb) +/** + * initio_state_1 - SCSI state machine + * @host: InitIO host we are controlling + * + * Perform SCSI state processing for Select/Attention/Stop + */ + +static int initio_state_1(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; #if DEBUG_STATE printk("-s1-"); #endif - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_append_busy_scb(pCurHcb, pCurScb); + /* Move the SCB from pending to busy */ + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); + outb(active_tc->sconfig0, host->addr + TUL_SConfig ); /* ATN on */ - if (pCurHcb->HCS_Phase == MSG_OUT) { - - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, (TSC_EN_BUS_IN | TSC_HW_RESELECT)); - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - - if (pCurScb->SCB_TagMsg) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId); - } - if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { - - pCurTcb->TCS_Flags |= TCF_WDTR_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2); /* Extended msg length */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* Sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* Start from 16 bits */ - } else if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { - - pCurTcb->TCS_Flags |= TCF_SYNC_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* extended msg length */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET); /* REQ/ACK offset */ - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - return (3); -} - + if (host->phase == MSG_OUT) { + outb(TSC_EN_BUS_IN | TSC_HW_RESELECT, host->addr + TUL_SCtrl1); + outb(scb->ident, host->addr + TUL_SFifo); + + if (scb->tagmsg) { + outb(scb->tagmsg, host->addr + TUL_SFifo); + outb(scb->tagid, host->addr + TUL_SFifo); + } + if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { + active_tc->flags |= TCF_WDTR_DONE; + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); /* Extended msg length */ + outb(3, host->addr + TUL_SFifo); /* Sync request */ + outb(1, host->addr + TUL_SFifo); /* Start from 16 bits */ + } else if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { + active_tc->flags |= TCF_SYNC_DONE; + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* extended msg length */ + outb(1, host->addr + TUL_SFifo); /* sync request */ + outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo); + outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */ + } + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + } + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal); + /* Into before CDB xfer */ + return 3; +} + + +/** + * initio_state_2 - SCSI state machine + * @host: InitIO host we are controlling + * + * state after selection with attention + * state after selection with attention3 + */ -/***************************************************************************/ -/* state after selection with attention */ -/* state after selection with attention3 */ -int tul_state_2(HCS * pCurHcb) +static int initio_state_2(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; #if DEBUG_STATE printk("-s2-"); #endif - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_append_busy_scb(pCurHcb, pCurScb); + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); + outb(active_tc->sconfig0, host->addr + TUL_SConfig); - if (pCurHcb->HCS_JSStatus1 & TSS_CMD_PH_CMP) { - return (4); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - return (3); + if (host->jsstatus1 & TSS_CMD_PH_CMP) + return 4; + + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal); + /* Into before CDB xfer */ + return 3; } -/***************************************************************************/ -/* state before CDB xfer is done */ -int tul_state_3(HCS * pCurHcb) +/** + * initio_state_3 - SCSI state machine + * @host: InitIO host we are controlling + * + * state before CDB xfer is done + */ + +static int initio_state_3(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; int i; #if DEBUG_STATE printk("-s3-"); #endif for (;;) { - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case CMD_OUT: /* Command out phase */ - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase == CMD_OUT) { - return (tul_bad_seq(pCurHcb)); - } - return (4); + for (i = 0; i < (int) scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + if (host->phase == CMD_OUT) + return initio_bad_seq(host); + return 4; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 3; - if (tul_msgin(pCurHcb) == -1) - return (-1); + scb->next_state = 3; + if (initio_msgin(host) == -1) + return -1; break; case STATUS_IN: /* Status phase */ - if (tul_status_msg(pCurHcb) == -1) - return (-1); + if (initio_status_msg(host) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - if (pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) { - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - + if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) { + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; } else { - pCurTcb->TCS_Flags |= TCF_SYNC_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* ext. msg len */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET); /* REQ/ACK offset */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)); + active_tc->flags |= TCF_SYNC_DONE; + + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* ext. msg len */ + outb(1, host->addr + TUL_SFifo); /* sync request */ + outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo); + outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7), host->addr + TUL_SSignal); } break; - default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } +/** + * initio_state_4 - SCSI state machine + * @host: InitIO host we are controlling + * + * SCSI state machine. State 4 + */ -/***************************************************************************/ -int tul_state_4(HCS * pCurHcb) +static int initio_state_4(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; #if DEBUG_STATE printk("-s4-"); #endif - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_NO_XF) { - return (6); /* Go to state 6 */ + if ((scb->flags & SCF_DIR) == SCF_NO_XF) { + return 6; /* Go to state 6 (After data) */ } for (;;) { - if (pCurScb->SCB_BufLen == 0) - return (6); /* Go to state 6 */ + if (scb->buflen == 0) + return 6; - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case STATUS_IN: /* Status phase */ - if ((pCurScb->SCB_Flags & SCF_DIR) != 0) { /* if direction bit set then report data underrun */ - pCurScb->SCB_HaStat = HOST_DO_DU; - } - if ((tul_status_msg(pCurHcb)) == -1) - return (-1); + if ((scb->flags & SCF_DIR) != 0) /* if direction bit set then report data underrun */ + scb->hastat = HOST_DO_DU; + if ((initio_status_msg(host)) == -1) + return -1; break; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 0x4; - if (tul_msgin(pCurHcb) == -1) - return (-1); + scb->next_state = 0x4; + if (initio_msgin(host) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - pCurScb->SCB_BufLen = 0; - pCurScb->SCB_HaStat = HOST_DO_DU; - if (tul_msgout_ide(pCurHcb) == -1) - return (-1); - return (6); /* Go to state 6 */ + if (host->jsstatus0 & TSS_PAR_ERROR) { + scb->buflen = 0; + scb->hastat = HOST_DO_DU; + if (initio_msgout_ide(host) == -1) + return -1; + return 6; } else { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; } break; case DATA_IN: /* Data in phase */ - return (tul_xfer_data_in(pCurHcb)); + return initio_xfer_data_in(host); case DATA_OUT: /* Data out phase */ - return (tul_xfer_data_out(pCurHcb)); + return initio_xfer_data_out(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } -/***************************************************************************/ -/* state after dma xfer done or phase change before xfer done */ -int tul_state_5(HCS * pCurHcb) +/** + * initio_state_5 - SCSI state machine + * @host: InitIO host we are controlling + * + * State after dma xfer done or phase change before xfer done + */ + +static int initio_state_5(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; long cnt, xcnt; /* cannot use unsigned !! code: if (xcnt < 0) */ #if DEBUG_STATE printk("-s5-"); #endif -/*------ get remaining count -------*/ - - cnt = TUL_RDLONG(pCurHcb->HCS_Base, TUL_SCnt0) & 0x0FFFFFF; + /*------ get remaining count -------*/ + cnt = inl(host->addr + TUL_SCnt0) & 0x0FFFFFF; - if (TUL_RD(pCurHcb->HCS_Base, TUL_XCmd) & 0x20) { + if (inb(host->addr + TUL_XCmd) & 0x20) { /* ----------------------- DATA_IN ----------------------------- */ /* check scsi parity error */ - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - pCurScb->SCB_HaStat = HOST_DO_DU; - } - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */ + if (host->jsstatus0 & TSS_PAR_ERROR) + scb->hastat = HOST_DO_DU; + if (inb(host->addr + TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */ /* tell Hardware scsi xfer has been terminated */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, TUL_RD(pCurHcb->HCS_Base, TUL_XCtrl) | 0x80); + outb(inb(host->addr + TUL_XCtrl) | 0x80, host->addr + TUL_XCtrl); /* wait until DMA xfer not pending */ - while (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND); + while (inb(host->addr + TUL_XStatus) & XPEND) + cpu_relax(); } } else { -/*-------- DATA OUT -----------*/ - if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0) { - if (pCurHcb->HCS_ActTcs->TCS_JS_Period & TSC_WIDE_SCSI) - cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F) << 1; + /*-------- DATA OUT -----------*/ + if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) { + if (host->active_tc->js_period & TSC_WIDE_SCSI) + cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F) << 1; else - cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F); + cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F); } - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT); + if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ + outb(TAX_X_ABT, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0); + while ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); } - if ((cnt == 1) && (pCurHcb->HCS_Phase == DATA_OUT)) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) { - return (-1); - } + if ((cnt == 1) && (host->phase == DATA_OUT)) { + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; cnt = 0; } else { - if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0) - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } } - if (cnt == 0) { - pCurScb->SCB_BufLen = 0; - return (6); /* Go to state 6 */ + scb->buflen = 0; + return 6; /* After Data */ } /* Update active data pointer */ - xcnt = (long) pCurScb->SCB_BufLen - cnt; /* xcnt== bytes already xferred */ - pCurScb->SCB_BufLen = (U32) cnt; /* cnt == bytes left to be xferred */ - if (pCurScb->SCB_Flags & SCF_SG) { - register SG *sgp; - ULONG i; - - sgp = &pCurScb->SCB_SGList[pCurScb->SCB_SGIdx]; - for (i = pCurScb->SCB_SGIdx; i < pCurScb->SCB_SGMax; sgp++, i++) { - xcnt -= (long) sgp->SG_Len; + xcnt = (long) scb->buflen - cnt; /* xcnt== bytes already xferred */ + scb->buflen = (u32) cnt; /* cnt == bytes left to be xferred */ + if (scb->flags & SCF_SG) { + struct sg_entry *sgp; + unsigned long i; + + sgp = &scb->sglist[scb->sgidx]; + for (i = scb->sgidx; i < scb->sgmax; sgp++, i++) { + xcnt -= (long) sgp->len; if (xcnt < 0) { /* this sgp xfer half done */ - xcnt += (long) sgp->SG_Len; /* xcnt == bytes xferred in this sgp */ - sgp->SG_Ptr += (U32) xcnt; /* new ptr to be xfer */ - sgp->SG_Len -= (U32) xcnt; /* new len to be xfer */ - pCurScb->SCB_BufPtr += ((U32) (i - pCurScb->SCB_SGIdx) << 3); + xcnt += (long) sgp->len; /* xcnt == bytes xferred in this sgp */ + sgp->data += (u32) xcnt; /* new ptr to be xfer */ + sgp->len -= (u32) xcnt; /* new len to be xfer */ + scb->bufptr += ((u32) (i - scb->sgidx) << 3); /* new SG table ptr */ - pCurScb->SCB_SGLen = (BYTE) (pCurScb->SCB_SGMax - i); + scb->sglen = (u8) (scb->sgmax - i); /* new SG table len */ - pCurScb->SCB_SGIdx = (WORD) i; + scb->sgidx = (u16) i; /* for next disc and come in this loop */ - return (4); /* Go to state 4 */ + return 4; /* Go to state 4 */ } /* else (xcnt >= 0 , i.e. this sgp already xferred */ } /* for */ - return (6); /* Go to state 6 */ + return 6; /* Go to state 6 */ } else { - pCurScb->SCB_BufPtr += (U32) xcnt; + scb->bufptr += (u32) xcnt; } - return (4); /* Go to state 4 */ + return 4; /* Go to state 4 */ } -/***************************************************************************/ -/* state after Data phase */ -int tul_state_6(HCS * pCurHcb) +/** + * initio_state_6 - SCSI state machine + * @host: InitIO host we are controlling + * + * State after Data phase + */ + +static int initio_state_6(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; #if DEBUG_STATE printk("-s6-"); #endif for (;;) { - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case STATUS_IN: /* Status phase */ - if ((tul_status_msg(pCurHcb)) == -1) - return (-1); + if ((initio_status_msg(host)) == -1) + return -1; break; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 6; - if ((tul_msgin(pCurHcb)) == -1) - return (-1); + scb->next_state = 6; + if ((initio_msgin(host)) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; break; case DATA_IN: /* Data in phase */ - return (tul_xpad_in(pCurHcb)); + return initio_xpad_in(host); case DATA_OUT: /* Data out phase */ - return (tul_xpad_out(pCurHcb)); + return initio_xpad_out(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } -/***************************************************************************/ -int tul_state_7(HCS * pCurHcb) +/** + * initio_state_7 - SCSI state machine + * @host: InitIO host we are controlling + * + */ + +int initio_state_7(struct initio_host * host) { int cnt, i; @@ -1893,1139 +1678,1029 @@ #if DEBUG_STATE printk("-s7-"); #endif /* flush SCSI FIFO */ - cnt = TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F; + cnt = inb(host->addr + TUL_SFifoCnt) & 0x1F; if (cnt) { for (i = 0; i < cnt; i++) - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + inb(host->addr + TUL_SFifo); } - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case DATA_IN: /* Data in phase */ case DATA_OUT: /* Data out phase */ - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); default: - return (6); /* Go to state 6 */ + return 6; /* Go to state 6 */ } } -/***************************************************************************/ -int tul_xfer_data_in(HCS * pCurHcb) +/** + * initio_xfer_data_in - Commence data input + * @host: InitIO host in use + * + * Commence a block of data transfer. The transfer itself will + * be managed by the controller and we will get a completion (or + * failure) interrupt. + */ +static int initio_xfer_data_in(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DOUT) { - return (6); /* wrong direction */ - } - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen); + if ((scb->flags & SCF_DIR) == SCF_DOUT) + return 6; /* wrong direction */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_IN); /* 7/25/95 */ + outl(scb->buflen, host->addr + TUL_SCnt0); + outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd); /* 7/25/95 */ - if (pCurScb->SCB_Flags & SCF_SG) { /* S/G xfer */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_IN); + if (scb->flags & SCF_SG) { /* S/G xfer */ + outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_SG_IN, host->addr + TUL_XCmd); } else { - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_IN); + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_IN, host->addr + TUL_XCmd); } - pCurScb->SCB_NxtStat = 0x5; - return (0); /* return to OS, wait xfer done , let jas_isr come in */ + scb->next_state = 0x5; + return 0; /* return to OS, wait xfer done , let jas_isr come in */ } +/** + * initio_xfer_data_out - Commence data output + * @host: InitIO host in use + * + * Commence a block of data transfer. The transfer itself will + * be managed by the controller and we will get a completion (or + * failure) interrupt. + */ -/***************************************************************************/ -int tul_xfer_data_out(HCS * pCurHcb) +static int initio_xfer_data_out(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DIN) { - return (6); /* wrong direction */ - } - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_OUT); + if ((scb->flags & SCF_DIR) == SCF_DIN) + return 6; /* wrong direction */ - if (pCurScb->SCB_Flags & SCF_SG) { /* S/G xfer */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_OUT); + outl(scb->buflen, host->addr + TUL_SCnt0); + outb(TSC_XF_DMA_OUT, host->addr + TUL_SCmd); + + if (scb->flags & SCF_SG) { /* S/G xfer */ + outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_SG_OUT, host->addr + TUL_XCmd); } else { - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_OUT); + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_OUT, host->addr + TUL_XCmd); } - pCurScb->SCB_NxtStat = 0x5; - return (0); /* return to OS, wait xfer done , let jas_isr come in */ + scb->next_state = 0x5; + return 0; /* return to OS, wait xfer done , let jas_isr come in */ } - -/***************************************************************************/ -int tul_xpad_in(HCS * pCurHcb) +int initio_xpad_in(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; - if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) { - pCurScb->SCB_HaStat = HOST_DO_DU; /* over run */ - } + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ for (;;) { - if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI) - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2); + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); else - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); + outl(1, host->addr + TUL_SCnt0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + if (host->phase != DATA_IN) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + return 6; } - if (pCurHcb->HCS_Phase != DATA_IN) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - return (6); - } - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + inb(host->addr + TUL_SFifo); } } -int tul_xpad_out(HCS * pCurHcb) +int initio_xpad_out(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; - if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) { - pCurScb->SCB_HaStat = HOST_DO_DU; /* over run */ - } + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ for (;;) { - if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI) - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2); + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); else - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); + outl(1, host->addr + TUL_SCnt0); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); - } - if (pCurHcb->HCS_Phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - return (6); + outb(0, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if ((wait_tulip(host)) == -1) + return -1; + if (host->phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */ + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + return 6; } } } - -/***************************************************************************/ -int tul_status_msg(HCS * pCurHcb) +int initio_status_msg(struct initio_host * host) { /* status & MSG_IN */ - SCB *pCurScb = pCurHcb->HCS_ActScb; - BYTE msg; + struct scsi_ctrl_blk *scb = host->active; + u8 msg; + + outb(TSC_CMD_COMP, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_CMD_COMP); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); - } /* get status */ - pCurScb->SCB_TaStat = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + scb->tastat = inb(host->addr + TUL_SFifo); - if (pCurHcb->HCS_Phase == MSG_OUT) { - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY); - } else { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); - } - if (pCurHcb->HCS_Phase == MSG_IN) { - msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { /* Parity error */ - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + if (host->phase == MSG_OUT) { + if (host->jsstatus0 & TSS_PAR_ERROR) + outb(MSG_PARITY, host->addr + TUL_SFifo); + else + outb(MSG_NOP, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); + } + if (host->phase == MSG_IN) { + msg = inb(host->addr + TUL_SFifo); + if (host->jsstatus0 & TSS_PAR_ERROR) { /* Parity error */ + if ((initio_msgin_accept(host)) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); + outb(MSG_PARITY, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } if (msg == 0) { /* Command complete */ - if ((pCurScb->SCB_TaStat & 0x18) == 0x10) { /* No link support */ - return (tul_bad_seq(pCurHcb)); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return tul_wait_done_disc(pCurHcb); + if ((scb->tastat & 0x18) == 0x10) /* No link support */ + return initio_bad_seq(host); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_done_disc(host); } - if ((msg == MSG_LINK_COMP) || (msg == MSG_LINK_FLAG)) { - if ((pCurScb->SCB_TaStat & 0x18) == 0x10) - return (tul_msgin_accept(pCurHcb)); + if (msg == MSG_LINK_COMP || msg == MSG_LINK_FLAG) { + if ((scb->tastat & 0x18) == 0x10) + return initio_msgin_accept(host); } } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } -/***************************************************************************/ /* scsi bus free */ -int int_tul_busfree(HCS * pCurHcb) +int int_initio_busfree(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if (pCurScb != NULL) { - if (pCurScb->SCB_Status & SCB_SELECT) { /* selection timeout */ - tul_unlink_pend_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_SEL_TOUT; - tul_append_done_scb(pCurHcb, pCurScb); + if (scb != NULL) { + if (scb->status & SCB_SELECT) { /* selection timeout */ + initio_unlink_pend_scb(host, scb); + scb->hastat = HOST_SEL_TOUT; + initio_append_done_scb(host, scb); } else { /* Unexpected bus free */ - tul_unlink_busy_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_BUS_FREE; - tul_append_done_scb(pCurHcb, pCurScb); + initio_unlink_busy_scb(host, scb); + scb->hastat = HOST_BUS_FREE; + initio_append_done_scb(host, scb); } - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; + host->active = NULL; + host->active_tc = NULL; } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } -/***************************************************************************/ -/* scsi bus reset */ -static int int_tul_scsi_rst(HCS * pCurHcb) +/** + * int_initio_scsi_rst - SCSI reset occurred + * @host: Host seeing the reset + * + * A SCSI bus reset has occurred. Clean up any pending transfer + * the hardware is doing by DMA and then abort all active and + * disconnected commands. The mid layer should sort the rest out + * for us + */ + +static int int_initio_scsi_rst(struct initio_host * host) { - SCB *pCurScb; + struct scsi_ctrl_blk *scb; int i; /* if DMA xfer is pending, abort DMA xfer */ - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & 0x01) { - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO); + if (inb(host->addr + TUL_XStatus) & 0x01) { + outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & 0x04) == 0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + while ((inb(host->addr + TUL_Int) & 0x04) == 0) + cpu_relax(); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } /* Abort all active & disconnected scb */ - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; + host->active = NULL; + host->active_tc = NULL; /* clr sync nego. done flag */ - for (i = 0; i < pCurHcb->HCS_MaxTar; i++) { - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); - } - return (-1); + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; } +/** + * int_initio_scsi_resel - Reselection occured + * @host: InitIO host adapter + * + * A SCSI reselection event has been signalled and the interrupt + * is now being processed. Work out which command block needs attention + * and continue processing that command. + */ -/***************************************************************************/ -/* scsi reselection */ -int int_tul_resel(HCS * pCurHcb) +int int_initio_resel(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; - BYTE tag, msg = 0; - BYTE tar, lun; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; + u8 tag, msg = 0; + u8 tar, lun; - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) { - if (pCurScb->SCB_Status & SCB_SELECT) { /* if waiting for selection complete */ - pCurScb->SCB_Status &= ~SCB_SELECT; - } - pCurHcb->HCS_ActScb = NULL; + if ((scb = host->active) != NULL) { + /* FIXME: Why check and not just clear ? */ + if (scb->status & SCB_SELECT) /* if waiting for selection complete */ + scb->status &= ~SCB_SELECT; + host->active = NULL; } /* --------- get target id---------------------- */ - tar = TUL_RD(pCurHcb->HCS_Base, TUL_SBusId); + tar = inb(host->addr + TUL_SBusId); /* ------ get LUN from Identify message----------- */ - lun = TUL_RD(pCurHcb->HCS_Base, TUL_SIdent) & 0x0F; + lun = inb(host->addr + TUL_SIdent) & 0x0F; /* 07/22/98 from 0x1F -> 0x0F */ - pCurTcb = &pCurHcb->HCS_Tcs[tar]; - pCurHcb->HCS_ActTcs = pCurTcb; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period); - + active_tc = &host->targets[tar]; + host->active_tc = active_tc; + outb(active_tc->sconfig0, host->addr + TUL_SConfig); + outb(active_tc->js_period, host->addr + TUL_SPeriod); /* ------------- tag queueing ? ------------------- */ - if (pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG) { - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_IN) + if (active_tc->drv_flags & TCF_DRV_EN_TAG) { + if ((initio_msgin_accept(host)) == -1) + return -1; + if (host->phase != MSG_IN) goto no_tag; - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); - msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* Read Tag Message */ + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + msg = inb(host->addr + TUL_SFifo); /* Read Tag Message */ - if ((msg < MSG_STAG) || (msg > MSG_OTAG)) /* Is simple Tag */ + if (msg < MSG_STAG || msg > MSG_OTAG) /* Is simple Tag */ goto no_tag; - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + if (initio_msgin_accept(host) == -1) + return -1; - if (pCurHcb->HCS_Phase != MSG_IN) + if (host->phase != MSG_IN) goto no_tag; - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); - tag = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* Read Tag ID */ - pCurScb = pCurHcb->HCS_Scb + tag; - if ((pCurScb->SCB_Target != tar) || (pCurScb->SCB_Lun != lun)) { - return tul_msgout_abort_tag(pCurHcb); - } - if (pCurScb->SCB_Status != SCB_BUSY) { /* 03/24/95 */ - return tul_msgout_abort_tag(pCurHcb); - } - pCurHcb->HCS_ActScb = pCurScb; - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + tag = inb(host->addr + TUL_SFifo); /* Read Tag ID */ + scb = host->scb + tag; + if (scb->target != tar || scb->lun != lun) { + return initio_msgout_abort_tag(host); + } + if (scb->status != SCB_BUSY) { /* 03/24/95 */ + return initio_msgout_abort_tag(host); + } + host->active = scb; + if ((initio_msgin_accept(host)) == -1) + return -1; } else { /* No tag */ no_tag: - if ((pCurScb = tul_find_busy_scb(pCurHcb, tar | (lun << 8))) == NULL) { - return tul_msgout_abort_targ(pCurHcb); + if ((scb = initio_find_busy_scb(host, tar | (lun << 8))) == NULL) { + return initio_msgout_abort_targ(host); } - pCurHcb->HCS_ActScb = pCurScb; - if (!(pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG)) { - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + host->active = scb; + if (!(active_tc->drv_flags & TCF_DRV_EN_TAG)) { + if ((initio_msgin_accept(host)) == -1) + return -1; } } return 0; } +/** + * int_initio_bad_seq - out of phase + * @host: InitIO host flagging event + * + * We have ended up out of phase somehow. Reset the host controller + * and throw all our toys out of the pram. Let the midlayer clean up + */ -/***************************************************************************/ -static int int_tul_bad_seq(HCS * pCurHcb) +static int int_initio_bad_seq(struct initio_host * host) { /* target wrong phase */ - SCB *pCurScb; + struct scsi_ctrl_blk *scb; int i; - tul_reset_scsi(pCurHcb, 10); + initio_reset_scsi(host, 10); - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); - } - for (i = 0; i < pCurHcb->HCS_MaxTar; i++) { - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } - return (-1); + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; } -/***************************************************************************/ -int tul_msgout_abort_targ(HCS * pCurHcb) +/** + * initio_msgout_abort_targ - abort a tag + * @host: InitIO host + * + * Abort when the target/lun does not match or when our SCB is not + * busy. Used by untagged commands. + */ + +static int initio_msgout_abort_targ(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if (tul_msgin_accept(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + if (initio_msgin_accept(host) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); + outb(MSG_ABORT, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); - return tul_wait_disc(pCurHcb); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgout_abort_tag(HCS * pCurHcb) +/** + * initio_msgout_abort_tag - abort a tag + * @host: InitIO host + * + * Abort when the target/lun does not match or when our SCB is not + * busy. Used for tagged commands. + */ + +static int initio_msgout_abort_tag(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if (tul_msgin_accept(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + if (initio_msgin_accept(host) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT_TAG); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); + outb(MSG_ABORT_TAG, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); - return tul_wait_disc(pCurHcb); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgin(HCS * pCurHcb) +/** + * initio_msgin - Message in + * @host: InitIO Host + * + * Process incoming message + */ +static int initio_msgin(struct initio_host * host) { - TCS *pCurTcb; + struct target_control *active_tc; for (;;) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - switch (TUL_RD(pCurHcb->HCS_Base, TUL_SFifo)) { + switch (inb(host->addr + TUL_SFifo)) { case MSG_DISC: /* Disconnect msg */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - - return tul_wait_disc(pCurHcb); - + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_disc(host); case MSG_SDP: case MSG_RESTORE: case MSG_NOP: - tul_msgin_accept(pCurHcb); + initio_msgin_accept(host); break; - case MSG_REJ: /* Clear ATN first */ - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, - (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - pCurTcb = pCurHcb->HCS_ActTcs; - if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync nego */ - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - } - tul_msgin_accept(pCurHcb); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), + host->addr + TUL_SSignal); + active_tc = host->active_tc; + if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) /* do sync nego */ + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), + host->addr + TUL_SSignal); + initio_msgin_accept(host); break; - case MSG_EXTEND: /* extended msg */ - tul_msgin_extend(pCurHcb); + initio_msgin_extend(host); break; - case MSG_IGNOREWIDE: - tul_msgin_accept(pCurHcb); + initio_msgin_accept(host); break; - - /* get */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return -1; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0); /* put pad */ - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* get IGNORE field */ - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* get pad */ - - tul_msgin_accept(pCurHcb); - break; - case MSG_COMP: - { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return tul_wait_done_disc(pCurHcb); - } + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_done_disc(host); default: - tul_msgout_reject(pCurHcb); + initio_msgout_reject(host); break; } - if (pCurHcb->HCS_Phase != MSG_IN) - return (pCurHcb->HCS_Phase); + if (host->phase != MSG_IN) + return host->phase; } /* statement won't reach here */ } - - - -/***************************************************************************/ -int tul_msgout_reject(HCS * pCurHcb) +static int initio_msgout_reject(struct initio_host * host) { + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + if (initio_msgin_accept(host) == -1) + return -1; - if (pCurHcb->HCS_Phase == MSG_OUT) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_REJ); /* Msg reject */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + if (host->phase == MSG_OUT) { + outb(MSG_REJ, host->addr + TUL_SFifo); /* Msg reject */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - return (pCurHcb->HCS_Phase); + return host->phase; } - - -/***************************************************************************/ -int tul_msgout_ide(HCS * pCurHcb) +static int initio_msgout_ide(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_IDE); /* Initiator Detected Error */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_IDE, host->addr + TUL_SFifo); /* Initiator Detected Error */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - -/***************************************************************************/ -int tul_msgin_extend(HCS * pCurHcb) +static int initio_msgin_extend(struct initio_host * host) { - BYTE len, idx; + u8 len, idx; - if (tul_msgin_accept(pCurHcb) != MSG_IN) - return (pCurHcb->HCS_Phase); + if (initio_msgin_accept(host) != MSG_IN) + return host->phase; /* Get extended msg length */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - len = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - pCurHcb->HCS_Msg[0] = len; + len = inb(host->addr + TUL_SFifo); + host->msg[0] = len; for (idx = 1; len != 0; len--) { - if ((tul_msgin_accept(pCurHcb)) != MSG_IN) - return (pCurHcb->HCS_Phase); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return (-1); - pCurHcb->HCS_Msg[idx++] = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - } - if (pCurHcb->HCS_Msg[1] == 1) { /* if it's synchronous data transfer request */ - if (pCurHcb->HCS_Msg[0] != 3) /* if length is not right */ - return (tul_msgout_reject(pCurHcb)); - if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */ - pCurHcb->HCS_Msg[3] = 0; + if ((initio_msgin_accept(host)) != MSG_IN) + return host->phase; + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + host->msg[idx++] = inb(host->addr + TUL_SFifo); + } + if (host->msg[1] == 1) { /* if it's synchronous data transfer request */ + u8 r; + if (host->msg[0] != 3) /* if length is not right */ + return initio_msgout_reject(host); + if (host->active_tc->flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */ + host->msg[3] = 0; } else { - if ((tul_msgin_sync(pCurHcb) == 0) && - (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SYNC_DONE)) { - tul_sync_done(pCurHcb); - return (tul_msgin_accept(pCurHcb)); + if (initio_msgin_sync(host) == 0 && + (host->active_tc->flags & TCF_SYNC_DONE)) { + initio_sync_done(host); + return initio_msgin_accept(host); } } - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if ((tul_msgin_accept(pCurHcb)) != MSG_OUT) - return (pCurHcb->HCS_Phase); + r = inb(host->addr + TUL_SSignal); + outb((r & (TSC_SET_ACK | 7)) | TSC_SET_ATN, + host->addr + TUL_SSignal); + if (initio_msgin_accept(host) != MSG_OUT) + return host->phase; /* sync msg out */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); - tul_sync_done(pCurHcb); + initio_sync_done(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[3]); - - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); + outb(1, host->addr + TUL_SFifo); + outb(host->msg[2], host->addr + TUL_SFifo); + outb(host->msg[3], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - if ((pCurHcb->HCS_Msg[0] != 2) || (pCurHcb->HCS_Msg[1] != 3)) - return (tul_msgout_reject(pCurHcb)); + if (host->msg[0] != 2 || host->msg[1] != 3) + return initio_msgout_reject(host); /* if it's WIDE DATA XFER REQ */ - if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) { - pCurHcb->HCS_Msg[2] = 0; + if (host->active_tc->flags & TCF_NO_WDTR) { + host->msg[2] = 0; } else { - if (pCurHcb->HCS_Msg[2] > 2) /* > 32 bits */ - return (tul_msgout_reject(pCurHcb)); - if (pCurHcb->HCS_Msg[2] == 2) { /* == 32 */ - pCurHcb->HCS_Msg[2] = 1; + if (host->msg[2] > 2) /* > 32 bits */ + return initio_msgout_reject(host); + if (host->msg[2] == 2) { /* == 32 */ + host->msg[2] = 1; } else { - if ((pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) == 0) { - wdtr_done(pCurHcb); - if ((pCurHcb->HCS_ActTcs->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - return (tul_msgin_accept(pCurHcb)); + if ((host->active_tc->flags & TCF_NO_WDTR) == 0) { + wdtr_done(host); + if ((host->active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + return initio_msgin_accept(host); } } } - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); - if (tul_msgin_accept(pCurHcb) != MSG_OUT) - return (pCurHcb->HCS_Phase); + if (initio_msgin_accept(host) != MSG_OUT) + return host->phase; /* WDTR msg out */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); + outb(host->msg[2], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } -/***************************************************************************/ -int tul_msgin_sync(HCS * pCurHcb) +static int initio_msgin_sync(struct initio_host * host) { char default_period; - default_period = tul_rate_tbl[pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SCSI_RATE]; - if (pCurHcb->HCS_Msg[3] > MAX_OFFSET) { - pCurHcb->HCS_Msg[3] = MAX_OFFSET; - if (pCurHcb->HCS_Msg[2] < default_period) { - pCurHcb->HCS_Msg[2] = default_period; + default_period = initio_rate_tbl[host->active_tc->flags & TCF_SCSI_RATE]; + if (host->msg[3] > MAX_OFFSET) { + host->msg[3] = MAX_OFFSET; + if (host->msg[2] < default_period) { + host->msg[2] = default_period; return 1; } - if (pCurHcb->HCS_Msg[2] >= 59) { /* Change to async */ - pCurHcb->HCS_Msg[3] = 0; - } + if (host->msg[2] >= 59) /* Change to async */ + host->msg[3] = 0; return 1; } /* offset requests asynchronous transfers ? */ - if (pCurHcb->HCS_Msg[3] == 0) { + if (host->msg[3] == 0) { return 0; } - if (pCurHcb->HCS_Msg[2] < default_period) { - pCurHcb->HCS_Msg[2] = default_period; + if (host->msg[2] < default_period) { + host->msg[2] = default_period; return 1; } - if (pCurHcb->HCS_Msg[2] >= 59) { - pCurHcb->HCS_Msg[3] = 0; + if (host->msg[2] >= 59) { + host->msg[3] = 0; return 1; } return 0; } - -/***************************************************************************/ -int wdtr_done(HCS * pCurHcb) +static int wdtr_done(struct initio_host * host) { - pCurHcb->HCS_ActTcs->TCS_Flags &= ~TCF_SYNC_DONE; - pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_WDTR_DONE; + host->active_tc->flags &= ~TCF_SYNC_DONE; + host->active_tc->flags |= TCF_WDTR_DONE; - pCurHcb->HCS_ActTcs->TCS_JS_Period = 0; - if (pCurHcb->HCS_Msg[2]) { /* if 16 bit */ - pCurHcb->HCS_ActTcs->TCS_JS_Period |= TSC_WIDE_SCSI; - } - pCurHcb->HCS_ActTcs->TCS_SConfig0 &= ~TSC_ALT_PERIOD; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period); + host->active_tc->js_period = 0; + if (host->msg[2]) /* if 16 bit */ + host->active_tc->js_period |= TSC_WIDE_SCSI; + host->active_tc->sconfig0 &= ~TSC_ALT_PERIOD; + outb(host->active_tc->sconfig0, host->addr + TUL_SConfig); + outb(host->active_tc->js_period, host->addr + TUL_SPeriod); return 1; } -/***************************************************************************/ -int tul_sync_done(HCS * pCurHcb) +static int initio_sync_done(struct initio_host * host) { int i; - pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_SYNC_DONE; + host->active_tc->flags |= TCF_SYNC_DONE; - if (pCurHcb->HCS_Msg[3]) { - pCurHcb->HCS_ActTcs->TCS_JS_Period |= pCurHcb->HCS_Msg[3]; + if (host->msg[3]) { + host->active_tc->js_period |= host->msg[3]; for (i = 0; i < 8; i++) { - if (tul_rate_tbl[i] >= pCurHcb->HCS_Msg[2]) /* pick the big one */ + if (initio_rate_tbl[i] >= host->msg[2]) /* pick the big one */ break; } - pCurHcb->HCS_ActTcs->TCS_JS_Period |= (i << 4); - pCurHcb->HCS_ActTcs->TCS_SConfig0 |= TSC_ALT_PERIOD; + host->active_tc->js_period |= (i << 4); + host->active_tc->sconfig0 |= TSC_ALT_PERIOD; } - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period); + outb(host->active_tc->sconfig0, host->addr + TUL_SConfig); + outb(host->active_tc->js_period, host->addr + TUL_SPeriod); - return (-1); + return -1; } -int tul_post_scsi_rst(HCS * pCurHcb) +static int initio_post_scsi_rst(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; int i; - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags = 0; + host->active = NULL; + host->active_tc = NULL; + host->flags = 0; - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } /* clear sync done flag */ - pCurTcb = &pCurHcb->HCS_Tcs[0]; - for (i = 0; i < pCurHcb->HCS_MaxTar; pCurTcb++, i++) { - pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + active_tc = &host->targets[0]; + for (i = 0; i < host->max_tar; active_tc++, i++) { + active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); /* Initialize the sync. xfer register values to an asyn xfer */ - pCurTcb->TCS_JS_Period = 0; - pCurTcb->TCS_SConfig0 = pCurHcb->HCS_SConf1; - pCurHcb->HCS_ActTags[0] = 0; /* 07/22/98 */ - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY; /* 07/22/98 */ + active_tc->js_period = 0; + active_tc->sconfig0 = host->sconf1; + host->act_tags[0] = 0; /* 07/22/98 */ + host->targets[i].flags &= ~TCF_BUSY; /* 07/22/98 */ } /* for */ - return (-1); + return -1; } -/***************************************************************************/ -void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb) { - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x1; - pCurHcb->HCS_ActScb = pCurScb; - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SELATNSTOP); - return; + scb->status |= SCB_SELECT; + scb->next_state = 0x1; + host->active = scb; + host->active_tc = &host->targets[scb->target]; + outb(TSC_SELATNSTOP, host->addr + TUL_SCmd); } -/***************************************************************************/ -void tul_select_atn(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb) { int i; - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x2; + scb->status |= SCB_SELECT; + scb->next_state = 0x2; - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - pCurHcb->HCS_ActScb = pCurScb; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN); - return; + outb(scb->ident, host->addr + TUL_SFifo); + for (i = 0; i < (int) scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + host->active_tc = &host->targets[scb->target]; + host->active = scb; + outb(TSC_SEL_ATN, host->addr + TUL_SCmd); } -/***************************************************************************/ -void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb) { int i; - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x2; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId); - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - pCurHcb->HCS_ActScb = pCurScb; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN3); - return; + scb->status |= SCB_SELECT; + scb->next_state = 0x2; + + outb(scb->ident, host->addr + TUL_SFifo); + outb(scb->tagmsg, host->addr + TUL_SFifo); + outb(scb->tagid, host->addr + TUL_SFifo); + for (i = 0; i < scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + host->active_tc = &host->targets[scb->target]; + host->active = scb; + outb(TSC_SEL_ATN3, host->addr + TUL_SCmd); } -/***************************************************************************/ -/* SCSI Bus Device Reset */ -int tul_bus_device_reset(HCS * pCurHcb) +/** + * initio_bus_device_reset - SCSI Bus Device Reset + * @host: InitIO host to reset + * + * Perform a device reset and abort all pending SCBs for the + * victim device + */ +int initio_bus_device_reset(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; - SCB *pTmpScb, *pPrevScb; - BYTE tar; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; + struct scsi_ctrl_blk *tmp, *prev; + u8 tar; - if (pCurHcb->HCS_Phase != MSG_OUT) { - return (int_tul_bad_seq(pCurHcb)); /* Unexpected phase */ - } - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_release_scb(pCurHcb, pCurScb); + if (host->phase != MSG_OUT) + return int_initio_bad_seq(host); /* Unexpected phase */ + + initio_unlink_pend_scb(host, scb); + initio_release_scb(host, scb); - tar = pCurScb->SCB_Target; /* target */ - pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY); + tar = scb->target; /* target */ + active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY); /* clr sync. nego & WDTR flags 07/22/98 */ /* abort all SCB with same target */ - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pTmpScb != NULL) { - - if (pTmpScb->SCB_Target == tar) { + prev = tmp = host->first_busy; /* Check Busy queue */ + while (tmp != NULL) { + if (tmp->target == tar) { /* unlink it */ - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_HaStat = HOST_ABORTED; - tul_append_done_scb(pCurHcb, pTmpScb); + tmp->hastat = HOST_ABORTED; + initio_append_done_scb(host, tmp); } /* Previous haven't change */ else { - pPrevScb = pTmpScb; + prev = tmp; } - pTmpScb = pTmpScb->SCB_NxtScb; + tmp = tmp->next; } - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_DEVRST); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - - return tul_wait_disc(pCurHcb); + outb(MSG_DEVRST, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgin_accept(HCS * pCurHcb) +static int initio_msgin_accept(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return (wait_tulip(pCurHcb)); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return wait_tulip(host); } -/***************************************************************************/ -int wait_tulip(HCS * pCurHcb) +static int wait_tulip(struct initio_host * host) { - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) + & TSS_INT_PENDING)) + cpu_relax(); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK; - pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1); + host->jsint = inb(host->addr + TUL_SInt); + host->phase = host->jsstatus0 & TSS_PH_MASK; + host->jsstatus1 = inb(host->addr + TUL_SStatus1); - if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) { /* if SCSI bus reset detected */ - return (int_tul_resel(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) { /* if selected/reselected timeout interrupt */ - return (int_tul_busfree(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - if (pCurHcb->HCS_Flags & HCF_EXPECT_DONE_DISC) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb->SCB_HaStat = 0; - tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags &= ~HCF_EXPECT_DONE_DISC; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + if (host->jsint & TSS_RESEL_INT) /* if SCSI bus reset detected */ + return int_initio_resel(host); + if (host->jsint & TSS_SEL_TIMEOUT) /* if selected/reselected timeout interrupt */ + return int_initio_busfree(host); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + if (host->flags & HCF_EXPECT_DONE_DISC) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + initio_unlink_busy_scb(host, host->active); + host->active->hastat = 0; + initio_append_done_scb(host, host->active); + host->active = NULL; + host->active_tc = NULL; + host->flags &= ~HCF_EXPECT_DONE_DISC; + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } - if (pCurHcb->HCS_Flags & HCF_EXPECT_DISC) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags &= ~HCF_EXPECT_DISC; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + if (host->flags & HCF_EXPECT_DISC) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + host->active = NULL; + host->active_tc = NULL; + host->flags &= ~HCF_EXPECT_DISC; + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } - return (int_tul_busfree(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) { - return (pCurHcb->HCS_Phase); + return int_initio_busfree(host); } - return (pCurHcb->HCS_Phase); + /* The old code really does the below. Can probably be removed */ + if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) + return host->phase; + return host->phase; } -/***************************************************************************/ -int tul_wait_disc(HCS * pCurHcb) -{ - - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); +static int initio_wait_disc(struct initio_host * host) +{ + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING)) + cpu_relax(); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); + host->jsint = inb(host->addr + TUL_SInt); - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - pCurHcb->HCS_ActScb = NULL; - return (-1); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + host->active = NULL; + return -1; } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } -/***************************************************************************/ -int tul_wait_done_disc(HCS * pCurHcb) +static int initio_wait_done_disc(struct initio_host * host) { + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) + & TSS_INT_PENDING)) + cpu_relax(); + host->jsint = inb(host->addr + TUL_SInt); - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); - - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - - - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + initio_unlink_busy_scb(host, host->active); - tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb = NULL; - return (-1); + initio_append_done_scb(host, host->active); + host->active = NULL; + return -1; } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } +/** + * i91u_intr - IRQ handler + * @irqno: IRQ number + * @dev_id: IRQ identifier + * + * Take the relevant locks and then invoke the actual isr processing + * code under the lock. + */ + static irqreturn_t i91u_intr(int irqno, void *dev_id) { struct Scsi_Host *dev = dev_id; unsigned long flags; + int r; spin_lock_irqsave(dev->host_lock, flags); - tul_isr((HCS *)dev->base); + r = initio_isr((struct initio_host *)dev->hostdata); spin_unlock_irqrestore(dev->host_lock, flags); - return IRQ_HANDLED; -} - -static int tul_NewReturnNumberOfAdapters(void) -{ - struct pci_dev *pDev = NULL; /* Start from none */ - int iAdapters = 0; - long dRegValue; - WORD wBIOS; - int i = 0; - - init_i91uAdapter_table(); - - for (i = 0; i < ARRAY_SIZE(i91u_pci_devices); i++) - { - while ((pDev = pci_find_device(i91u_pci_devices[i].vendor, i91u_pci_devices[i].device, pDev)) != NULL) { - if (pci_enable_device(pDev)) - continue; - pci_read_config_dword(pDev, 0x44, (u32 *) & dRegValue); - wBIOS = (UWORD) (dRegValue & 0xFF); - if (((dRegValue & 0xFF00) >> 8) == 0xFF) - dRegValue = 0; - wBIOS = (wBIOS << 8) + ((UWORD) ((dRegValue & 0xFF00) >> 8)); - if (pci_set_dma_mask(pDev, DMA_32BIT_MASK)) { - printk(KERN_WARNING - "i91u: Could not set 32 bit DMA mask\n"); - continue; - } - - if (Addi91u_into_Adapter_table(wBIOS, - (pDev->resource[0].start), - pDev->irq, - pDev->bus->number, - (pDev->devfn >> 3) - ) == 0) - iAdapters++; - } - } - - return (iAdapters); + if (r) + return IRQ_HANDLED; + else + return IRQ_NONE; } -static int i91u_detect(struct scsi_host_template * tpnt) -{ - HCS *pHCB; - struct Scsi_Host *hreg; - unsigned long i; /* 01/14/98 */ - int ok = 0, iAdapters; - ULONG dBiosAdr; - BYTE *pbBiosAdr; - - /* Get total number of adapters in the motherboard */ - iAdapters = tul_NewReturnNumberOfAdapters(); - if (iAdapters == 0) /* If no tulip founded, return */ - return (0); - - tul_num_ch = (iAdapters > tul_num_ch) ? tul_num_ch : iAdapters; - /* Update actually channel number */ - if (tul_tag_enable) { /* 1.01i */ - tul_num_scb = MAX_TARGETS * i91u_MAXQUEUE; - } else { - tul_num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */ - } /* Update actually SCBs per adapter */ - - /* Get total memory needed for HCS */ - i = tul_num_ch * sizeof(HCS); - memset((unsigned char *) &tul_hcs[0], 0, i); /* Initialize tul_hcs 0 */ - /* Get total memory needed for SCB */ - - for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) { - i = tul_num_ch * tul_num_scb * sizeof(SCB); - if ((tul_scb = kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL) - break; - } - if (tul_scb == NULL) { - printk("i91u: SCB memory allocation error\n"); - return (0); - } - memset((unsigned char *) tul_scb, 0, i); - for (i = 0, pHCB = &tul_hcs[0]; /* Get pointer for control block */ - i < tul_num_ch; - i++, pHCB++) { - get_tulipPCIConfig(pHCB, i); - - dBiosAdr = pHCB->HCS_BIOS; - dBiosAdr = (dBiosAdr << 4); - - pbBiosAdr = phys_to_virt(dBiosAdr); - - init_tulip(pHCB, tul_scb + (i * tul_num_scb), tul_num_scb, pbBiosAdr, 10); - request_region(pHCB->HCS_Base, 256, "i91u"); /* Register */ - - pHCB->HCS_Index = i; /* 7/29/98 */ - hreg = scsi_register(tpnt, sizeof(HCS)); - if(hreg == NULL) { - release_region(pHCB->HCS_Base, 256); - return 0; - } - hreg->io_port = pHCB->HCS_Base; - hreg->n_io_port = 0xff; - hreg->can_queue = tul_num_scb; /* 03/05/98 */ - hreg->unique_id = pHCB->HCS_Base; - hreg->max_id = pHCB->HCS_MaxTar; - hreg->max_lun = 32; /* 10/21/97 */ - hreg->irq = pHCB->HCS_Intr; - hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */ - hreg->base = (unsigned long)pHCB; - hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */ - - /* Initial tulip chip */ - ok = request_irq(pHCB->HCS_Intr, i91u_intr, IRQF_DISABLED | IRQF_SHARED, "i91u", hreg); - if (ok < 0) { - printk(KERN_WARNING "i91u: unable to request IRQ %d\n\n", pHCB->HCS_Intr); - return 0; - } - } - - tpnt->this_id = -1; - tpnt->can_queue = 1; - - return 1; -} +/** + * initio_build_scb - Build the mappings and SCB + * @host: InitIO host taking the command + * @cblk: Firmware command block + * @cmnd: SCSI midlayer command block + * + * Translate the abstract SCSI command into a firmware command block + * suitable for feeding to the InitIO host controller. This also requires + * we build the scatter gather lists and ensure they are mapped properly. + */ -static void i91uBuildSCB(HCS * pHCB, SCB * pSCB, struct scsi_cmnd * SCpnt) +static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd) { /* Create corresponding SCB */ - struct scatterlist *pSrbSG; - SG *pSG; /* Pointer to SG list */ - int i; - long TotalLen; + struct scatterlist *sglist; + struct sg_entry *sg; /* Pointer to SG list */ + int i, nseg; + long total_len; dma_addr_t dma_addr; - pSCB->SCB_Post = i91uSCBPost; /* i91u's callback routine */ - pSCB->SCB_Srb = SCpnt; - pSCB->SCB_Opcode = ExecSCSI; - pSCB->SCB_Flags = SCF_POST; /* After SCSI done, call post routine */ - pSCB->SCB_Target = SCpnt->device->id; - pSCB->SCB_Lun = SCpnt->device->lun; - pSCB->SCB_Ident = SCpnt->device->lun | DISC_ALLOW; - - pSCB->SCB_Flags |= SCF_SENSE; /* Turn on auto request sense */ - dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->sense_buffer, - SENSE_SIZE, DMA_FROM_DEVICE); - pSCB->SCB_SensePtr = cpu_to_le32((u32)dma_addr); - pSCB->SCB_SenseLen = cpu_to_le32(SENSE_SIZE); - SCpnt->SCp.ptr = (char *)(unsigned long)dma_addr; + /* Fill in the command headers */ + cblk->post = i91uSCBPost; /* i91u's callback routine */ + cblk->srb = cmnd; + cblk->opcode = ExecSCSI; + cblk->flags = SCF_POST; /* After SCSI done, call post routine */ + cblk->target = cmnd->device->id; + cblk->lun = cmnd->device->lun; + cblk->ident = cmnd->device->lun | DISC_ALLOW; - pSCB->SCB_CDBLen = SCpnt->cmd_len; - pSCB->SCB_HaStat = 0; - pSCB->SCB_TaStat = 0; - memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, SCpnt->cmd_len); + cblk->flags |= SCF_SENSE; /* Turn on auto request sense */ - if (SCpnt->device->tagged_supported) { /* Tag Support */ - pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */ + /* Map the sense buffer into bus memory */ + dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->sense_buffer, + SENSE_SIZE, DMA_FROM_DEVICE); + cblk->senseptr = cpu_to_le32((u32)dma_addr); + cblk->senselen = cpu_to_le32(SENSE_SIZE); + cmnd->SCp.ptr = (char *)(unsigned long)dma_addr; + cblk->cdblen = cmnd->cmd_len; + + /* Clear the returned status */ + cblk->hastat = 0; + cblk->tastat = 0; + /* Command the command */ + memcpy(&cblk->cdb[0], &cmnd->cmnd, cmnd->cmd_len); + + /* Set up tags */ + if (cmnd->device->tagged_supported) { /* Tag Support */ + cblk->tagmsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */ } else { - pSCB->SCB_TagMsg = 0; /* No tag support */ + cblk->tagmsg = 0; /* No tag support */ } + /* todo handle map_sg error */ - if (SCpnt->use_sg) { - dma_addr = dma_map_single(&pHCB->pci_dev->dev, &pSCB->SCB_SGList[0], - sizeof(struct SG_Struc) * TOTAL_SG_ENTRY, + nseg = scsi_dma_map(cmnd); + BUG_ON(nseg < 0); + if (nseg) { + dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0], + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, DMA_BIDIRECTIONAL); - pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr); - SCpnt->SCp.dma_handle = dma_addr; - - pSrbSG = (struct scatterlist *) SCpnt->request_buffer; - pSCB->SCB_SGLen = dma_map_sg(&pHCB->pci_dev->dev, pSrbSG, - SCpnt->use_sg, SCpnt->sc_data_direction); - - pSCB->SCB_Flags |= SCF_SG; /* Turn on SG list flag */ - for (i = 0, TotalLen = 0, pSG = &pSCB->SCB_SGList[0]; /* 1.01g */ - i < pSCB->SCB_SGLen; i++, pSG++, pSrbSG++) { - pSG->SG_Ptr = cpu_to_le32((u32)sg_dma_address(pSrbSG)); - TotalLen += pSG->SG_Len = cpu_to_le32((u32)sg_dma_len(pSrbSG)); + cblk->bufptr = cpu_to_le32((u32)dma_addr); + cmnd->SCp.dma_handle = dma_addr; + + + cblk->flags |= SCF_SG; /* Turn on SG list flag */ + total_len = 0; + sg = &cblk->sglist[0]; + scsi_for_each_sg(cmnd, sglist, cblk->sglen, i) { + sg->data = cpu_to_le32((u32)sg_dma_address(sglist)); + total_len += sg->len = cpu_to_le32((u32)sg_dma_len(sglist)); } - pSCB->SCB_BufLen = (SCpnt->request_bufflen > TotalLen) ? - TotalLen : SCpnt->request_bufflen; - } else if (SCpnt->request_bufflen) { /* Non SG */ - dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->request_buffer, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - SCpnt->SCp.dma_handle = dma_addr; - pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr); - pSCB->SCB_BufLen = cpu_to_le32((u32)SCpnt->request_bufflen); - pSCB->SCB_SGLen = 0; - } else { - pSCB->SCB_BufLen = 0; - pSCB->SCB_SGLen = 0; + cblk->buflen = (scsi_bufflen(cmnd) > total_len) ? + total_len : scsi_bufflen(cmnd); + } else { /* No data transfer required */ + cblk->buflen = 0; + cblk->sglen = 0; } } +/** + * i91u_queuecommand - Queue a new command if possible + * @cmd: SCSI command block from the mid layer + * @done: Completion handler + * + * Attempts to queue a new command with the host adapter. Will return + * zero if successful or indicate a host busy condition if not (which + * will cause the mid layer to call us again later with the command) + */ + static int i91u_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { - HCS *pHCB = (HCS *) cmd->device->host->base; - register SCB *pSCB; + struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata; + struct scsi_ctrl_blk *cmnd; cmd->scsi_done = done; - pSCB = tul_alloc_scb(pHCB); - if (!pSCB) + cmnd = initio_alloc_scb(host); + if (!cmnd) return SCSI_MLQUEUE_HOST_BUSY; - i91uBuildSCB(pHCB, pSCB, cmd); - tul_exec_scb(pHCB, pSCB); + initio_build_scb(host, cmnd, cmd); + initio_exec_scb(host, cmnd); return 0; } -#if 0 /* no new EH yet */ -/* - * Abort a queued command - * (commands that are on the bus can't be aborted easily) - */ -static int i91u_abort(struct scsi_cmnd * SCpnt) -{ - HCS *pHCB; - - pHCB = (HCS *) SCpnt->device->host->base; - return tul_abort_srb(pHCB, SCpnt); -} - -/* - * Reset registers, reset a hanging bus and - * kill active and disconnected commands for target w/o soft reset +/** + * i91u_bus_reset - reset the SCSI bus + * @cmnd: Command block we want to trigger the reset for + * + * Initiate a SCSI bus reset sequence */ -static int i91u_reset(struct scsi_cmnd * SCpnt, unsigned int reset_flags) -{ /* I need Host Control Block Information */ - HCS *pHCB; - - pHCB = (HCS *) SCpnt->device->host->base; - if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET)) - return tul_reset_scsi_bus(pHCB); - else - return tul_device_reset(pHCB, SCpnt, SCpnt->device->id, reset_flags); -} -#endif - -static int i91u_bus_reset(struct scsi_cmnd * SCpnt) +static int i91u_bus_reset(struct scsi_cmnd * cmnd) { - HCS *pHCB; + struct initio_host *host; - pHCB = (HCS *) SCpnt->device->host->base; + host = (struct initio_host *) cmnd->device->host->hostdata; - spin_lock_irq(SCpnt->device->host->host_lock); - tul_reset_scsi(pHCB, 0); - spin_unlock_irq(SCpnt->device->host->host_lock); + spin_lock_irq(cmnd->device->host->host_lock); + initio_reset_scsi(host, 0); + spin_unlock_irq(cmnd->device->host->host_lock); return SUCCESS; } -/* - * Return the "logical geometry" +/** + * i91u_biospararm - return the "logical geometry + * @sdev: SCSI device + * @dev; Matching block device + * @capacity: Sector size of drive + * @info_array: Return space for BIOS geometry + * + * Map the device geometry in a manner compatible with the host + * controller BIOS behaviour. + * + * FIXME: limited to 2^32 sector devices. */ + static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev, sector_t capacity, int *info_array) { - HCS *pHcb; /* Point to Host adapter control block */ - TCS *pTcb; + struct initio_host *host; /* Point to Host adapter control block */ + struct target_control *tc; - pHcb = (HCS *) sdev->host->base; - pTcb = &pHcb->HCS_Tcs[sdev->id]; + host = (struct initio_host *) sdev->host->hostdata; + tc = &host->targets[sdev->id]; - if (pTcb->TCS_DrvHead) { - info_array[0] = pTcb->TCS_DrvHead; - info_array[1] = pTcb->TCS_DrvSector; - info_array[2] = (unsigned long)capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector; + if (tc->heads) { + info_array[0] = tc->heads; + info_array[1] = tc->sectors; + info_array[2] = (unsigned long)capacity / tc->heads / tc->sectors; } else { - if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) { + if (tc->drv_flags & TCF_DRV_255_63) { info_array[0] = 255; info_array[1] = 63; info_array[2] = (unsigned long)capacity / 255 / 63; @@ -3047,7 +2722,16 @@ #endif return 0; } -static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd) +/** + * i91u_unmap_scb - Unmap a command + * @pci_dev: PCI device the command is for + * @cmnd: The command itself + * + * Unmap any PCI mapping/IOMMU resources allocated when the command + * was mapped originally as part of initio_build_scb + */ + +static void i91u_unmap_scb(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd) { /* auto sense buffer */ if (cmnd->SCp.ptr) { @@ -3058,65 +2742,63 @@ static void i91u_unmap_cmnd(struct pci_d } /* request buffer */ - if (cmnd->use_sg) { + if (scsi_sg_count(cmnd)) { dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle, - sizeof(struct SG_Struc) * TOTAL_SG_ENTRY, + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, DMA_BIDIRECTIONAL); - dma_unmap_sg(&pci_dev->dev, cmnd->request_buffer, - cmnd->use_sg, - cmnd->sc_data_direction); - } else if (cmnd->request_bufflen) { - dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle, - cmnd->request_bufflen, - cmnd->sc_data_direction); + scsi_dma_unmap(cmnd); } } -/***************************************************************************** - Function name : i91uSCBPost - Description : This is callback routine be called when tulip finish one - SCSI command. - Input : pHCB - Pointer to host adapter control block. - pSCB - Pointer to SCSI control block. - Output : None. - Return : None. -*****************************************************************************/ -static void i91uSCBPost(BYTE * pHcb, BYTE * pScb) -{ - struct scsi_cmnd *pSRB; /* Pointer to SCSI request block */ - HCS *pHCB; - SCB *pSCB; +/** + * i91uSCBPost - SCSI callback + * @host: Pointer to host adapter control block. + * @cmnd: Pointer to SCSI control block. + * + * This is callback routine be called when tulip finish one + * SCSI command. + */ - pHCB = (HCS *) pHcb; - pSCB = (SCB *) pScb; - if ((pSRB = pSCB->SCB_Srb) == 0) { - printk("i91uSCBPost: SRB pointer is empty\n"); +static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem) +{ + struct scsi_cmnd *cmnd; /* Pointer to SCSI request block */ + struct initio_host *host; + struct scsi_ctrl_blk *cblk; - tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ + host = (struct initio_host *) host_mem; + cblk = (struct scsi_ctrl_blk *) cblk_mem; + if ((cmnd = cblk->srb) == NULL) { + printk(KERN_ERR "i91uSCBPost: SRB pointer is empty\n"); + WARN_ON(1); + initio_release_scb(host, cblk); /* Release SCB for current channel */ return; } - switch (pSCB->SCB_HaStat) { + + /* + * Remap the firmware error status into a mid layer one + */ + switch (cblk->hastat) { case 0x0: case 0xa: /* Linked command complete without error and linked normally */ case 0xb: /* Linked command complete without error interrupt generated */ - pSCB->SCB_HaStat = 0; + cblk->hastat = 0; break; case 0x11: /* Selection time out-The initiator selection or target reselection was not complete within the SCSI Time out period */ - pSCB->SCB_HaStat = DID_TIME_OUT; + cblk->hastat = DID_TIME_OUT; break; case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus phase sequence was requested by the target. The host adapter will generate a SCSI Reset Condition, notifying the host with a SCRD interrupt */ - pSCB->SCB_HaStat = DID_RESET; + cblk->hastat = DID_RESET; break; case 0x1a: /* SCB Aborted. 07/21/98 */ - pSCB->SCB_HaStat = DID_ABORT; + cblk->hastat = DID_ABORT; break; case 0x12: /* Data overrun/underrun-The target attempted to transfer more data @@ -3126,49 +2808,196 @@ static void i91uSCBPost(BYTE * pHcb, BYT case 0x16: /* Invalid SCB Operation Code. */ default: - printk("ini9100u: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat); - pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */ + printk("ini9100u: %x %x\n", cblk->hastat, cblk->tastat); + cblk->hastat = DID_ERROR; /* Couldn't find any better */ break; } - pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16); + cmnd->result = cblk->tastat | (cblk->hastat << 16); + WARN_ON(cmnd == NULL); + i91u_unmap_scb(host->pci_dev, cmnd); + cmnd->scsi_done(cmnd); /* Notify system DONE */ + initio_release_scb(host, cblk); /* Release SCB for current channel */ +} + +static struct scsi_host_template initio_template = { + .proc_name = "INI9100U", + .name = "Initio INI-9X00U/UW SCSI device driver", + .queuecommand = i91u_queuecommand, + .eh_bus_reset_handler = i91u_bus_reset, + .bios_param = i91u_biosparam, + .can_queue = MAX_TARGETS * i91u_MAXQUEUE, + .this_id = 1, + .sg_tablesize = SG_ALL, + .cmd_per_lun = 1, + .use_clustering = ENABLE_CLUSTERING, +}; + +static int initio_probe_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct Scsi_Host *shost; + struct initio_host *host; + u32 reg; + u16 bios_seg; + struct scsi_ctrl_blk *scb, *tmp, *prev = NULL /* silence gcc */; + int num_scb, i, error; + + error = pci_enable_device(pdev); + if (error) + return error; + + pci_read_config_dword(pdev, 0x44, (u32 *) & reg); + bios_seg = (u16) (reg & 0xFF); + if (((reg & 0xFF00) >> 8) == 0xFF) + reg = 0; + bios_seg = (bios_seg << 8) + ((u16) ((reg & 0xFF00) >> 8)); + + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { + printk(KERN_WARNING "i91u: Could not set 32 bit DMA mask\n"); + error = -ENODEV; + goto out_disable_device; + } + shost = scsi_host_alloc(&initio_template, sizeof(struct initio_host)); + if (!shost) { + printk(KERN_WARNING "initio: Could not allocate host structure.\n"); + error = -ENOMEM; + goto out_disable_device; + } + host = (struct initio_host *)shost->hostdata; + memset(host, 0, sizeof(struct initio_host)); - if (pSRB == NULL) { - printk("pSRB is NULL\n"); + if (!request_region(host->addr, 256, "i91u")) { + printk(KERN_WARNING "initio: I/O port range 0x%x is busy.\n", host->addr); + error = -ENODEV; + goto out_host_put; } - i91u_unmap_cmnd(pHCB->pci_dev, pSRB); - pSRB->scsi_done(pSRB); /* Notify system DONE */ + if (initio_tag_enable) /* 1.01i */ + num_scb = MAX_TARGETS * i91u_MAXQUEUE; + else + num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */ - tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ -} + for (; num_scb >= MAX_TARGETS + 3; num_scb--) { + i = num_scb * sizeof(struct scsi_ctrl_blk); + if ((scb = kzalloc(i, GFP_DMA)) != NULL) + break; + } + + if (!scb) { + printk(KERN_WARNING "initio: Cannot allocate SCB array.\n"); + error = -ENOMEM; + goto out_release_region; + } -/* - * Release ressources + host->num_scbs = num_scb; + host->scb = scb; + host->next_pending = scb; + host->next_avail = scb; + for (i = 0, tmp = scb; i < num_scb; i++, tmp++) { + tmp->tagid = i; + if (i != 0) + prev->next = tmp; + prev = tmp; + } + prev->next = NULL; + host->scb_end = tmp; + host->first_avail = scb; + host->last_avail = prev; + + initio_init(host, phys_to_virt(bios_seg << 4)); + + host->jsstatus0 = 0; + + shost->io_port = host->addr; + shost->n_io_port = 0xff; + shost->can_queue = num_scb; /* 03/05/98 */ + shost->unique_id = host->addr; + shost->max_id = host->max_tar; + shost->max_lun = 32; /* 10/21/97 */ + shost->irq = pdev->irq; + shost->this_id = host->scsi_id; /* Assign HCS index */ + shost->base = host->addr; + shost->sg_tablesize = TOTAL_SG_ENTRY; + + error = request_irq(pdev->irq, i91u_intr, IRQF_DISABLED|IRQF_SHARED, "i91u", shost); + if (error < 0) { + printk(KERN_WARNING "initio: Unable to request IRQ %d\n", pdev->irq); + goto out_free_scbs; + } + + pci_set_drvdata(pdev, shost); + host->pci_dev = pdev; + + error = scsi_add_host(shost, &pdev->dev); + if (error) + goto out_free_irq; + scsi_scan_host(shost); + return 0; +out_free_irq: + free_irq(pdev->irq, shost); +out_free_scbs: + kfree(host->scb); +out_release_region: + release_region(host->addr, 256); +out_host_put: + scsi_host_put(shost); +out_disable_device: + pci_disable_device(pdev); + return error; +} + +/** + * initio_remove_one - control shutdown + * @pdev: PCI device being released + * + * Release the resources assigned to this adapter after it has + * finished being used. */ -static int i91u_release(struct Scsi_Host *hreg) + +static void initio_remove_one(struct pci_dev *pdev) { - free_irq(hreg->irq, hreg); - release_region(hreg->io_port, 256); - return 0; + struct Scsi_Host *host = pci_get_drvdata(pdev); + struct initio_host *s = (struct initio_host *)host->hostdata; + scsi_remove_host(host); + free_irq(pdev->irq, host); + release_region(s->addr, 256); + scsi_host_put(host); + pci_disable_device(pdev); } -MODULE_LICENSE("Dual BSD/GPL"); - -static struct scsi_host_template driver_template = { - .proc_name = "INI9100U", - .name = i91u_REVID, - .detect = i91u_detect, - .release = i91u_release, - .queuecommand = i91u_queuecommand, -// .abort = i91u_abort, -// .reset = i91u_reset, - .eh_bus_reset_handler = i91u_bus_reset, - .bios_param = i91u_biosparam, - .can_queue = 1, - .this_id = 1, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, + +MODULE_LICENSE("GPL"); + +static struct pci_device_id initio_pci_tbl[] = { + {PCI_VENDOR_ID_INIT, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_DOMEX, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {0,} +}; +MODULE_DEVICE_TABLE(pci, initio_pci_tbl); + +static struct pci_driver initio_pci_driver = { + .name = "initio", + .id_table = initio_pci_tbl, + .probe = initio_probe_one, + .remove = __devexit_p(initio_remove_one), }; -#include "scsi_module.c" +static int __init initio_init_driver(void) +{ + return pci_register_driver(&initio_pci_driver); +} + +static void __exit initio_exit_driver(void) +{ + pci_unregister_driver(&initio_pci_driver); +} + +MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver"); +MODULE_AUTHOR("Initio Corporation"); +MODULE_LICENSE("GPL"); + +module_init(initio_init_driver); +module_exit(initio_exit_driver); diff --git a/drivers/scsi/initio.h b/drivers/scsi/initio.h index acb67a4..cb48efa 100644 --- a/drivers/scsi/initio.h +++ b/drivers/scsi/initio.h @@ -4,6 +4,8 @@ * Copyright (c) 1994-1998 Initio Corporation * All rights reserved. * + * Cleanups (c) Copyright 2007 Red Hat + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) @@ -18,27 +20,6 @@ * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * - * -------------------------------------------------------------------------- - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -56,17 +37,6 @@ #include -#define ULONG unsigned long -#define USHORT unsigned short -#define UCHAR unsigned char -#define BYTE unsigned char -#define WORD unsigned short -#define DWORD unsigned long -#define UBYTE unsigned char -#define UWORD unsigned short -#define UDWORD unsigned long -#define U32 u32 - #define TOTAL_SG_ENTRY 32 #define MAX_SUPPORTED_ADAPTERS 8 #define MAX_OFFSET 15 @@ -368,55 +338,55 @@ #define SE2DI 0x01 /************************************************************************/ /* Scatter-Gather Element Structure */ /************************************************************************/ -typedef struct SG_Struc { - U32 SG_Ptr; /* Data Pointer */ - U32 SG_Len; /* Data Length */ -} SG; +struct sg_entry { + u32 data; /* Data Pointer */ + u32 len; /* Data Length */ +}; /*********************************************************************** SCSI Control Block ************************************************************************/ -typedef struct Scsi_Ctrl_Blk { - struct Scsi_Ctrl_Blk *SCB_NxtScb; - UBYTE SCB_Status; /*4 */ - UBYTE SCB_NxtStat; /*5 */ - UBYTE SCB_Mode; /*6 */ - UBYTE SCB_Msgin; /*7 SCB_Res0 */ - UWORD SCB_SGIdx; /*8 */ - UWORD SCB_SGMax; /*A */ +struct scsi_ctrl_blk { + struct scsi_ctrl_blk *next; + u8 status; /*4 */ + u8 next_state; /*5 */ + u8 mode; /*6 */ + u8 msgin; /*7 SCB_Res0 */ + u16 sgidx; /*8 */ + u16 sgmax; /*A */ #ifdef ALPHA - U32 SCB_Reserved[2]; /*C */ + u32 reserved[2]; /*C */ #else - U32 SCB_Reserved[3]; /*C */ + u32 reserved[3]; /*C */ #endif - U32 SCB_XferLen; /*18 Current xfer len */ - U32 SCB_TotXLen; /*1C Total xfer len */ - U32 SCB_PAddr; /*20 SCB phy. Addr. */ - - UBYTE SCB_Opcode; /*24 SCB command code */ - UBYTE SCB_Flags; /*25 SCB Flags */ - UBYTE SCB_Target; /*26 Target Id */ - UBYTE SCB_Lun; /*27 Lun */ - U32 SCB_BufPtr; /*28 Data Buffer Pointer */ - U32 SCB_BufLen; /*2C Data Allocation Length */ - UBYTE SCB_SGLen; /*30 SG list # */ - UBYTE SCB_SenseLen; /*31 Sense Allocation Length */ - UBYTE SCB_HaStat; /*32 */ - UBYTE SCB_TaStat; /*33 */ - UBYTE SCB_CDBLen; /*34 CDB Length */ - UBYTE SCB_Ident; /*35 Identify */ - UBYTE SCB_TagMsg; /*36 Tag Message */ - UBYTE SCB_TagId; /*37 Queue Tag */ - UBYTE SCB_CDB[12]; /*38 */ - U32 SCB_SGPAddr; /*44 SG List/Sense Buf phy. Addr. */ - U32 SCB_SensePtr; /*48 Sense data pointer */ - void (*SCB_Post) (BYTE *, BYTE *); /*4C POST routine */ - struct scsi_cmnd *SCB_Srb; /*50 SRB Pointer */ - SG SCB_SGList[TOTAL_SG_ENTRY]; /*54 Start of SG list */ -} SCB; - -/* Bit Definition for SCB_Status */ + u32 xferlen; /*18 Current xfer len */ + u32 totxlen; /*1C Total xfer len */ + u32 paddr; /*20 SCB phy. Addr. */ + + u8 opcode; /*24 SCB command code */ + u8 flags; /*25 SCB Flags */ + u8 target; /*26 Target Id */ + u8 lun; /*27 Lun */ + u32 bufptr; /*28 Data Buffer Pointer */ + u32 buflen; /*2C Data Allocation Length */ + u8 sglen; /*30 SG list # */ + u8 senselen; /*31 Sense Allocation Length */ + u8 hastat; /*32 */ + u8 tastat; /*33 */ + u8 cdblen; /*34 CDB Length */ + u8 ident; /*35 Identify */ + u8 tagmsg; /*36 Tag Message */ + u8 tagid; /*37 Queue Tag */ + u8 cdb[12]; /*38 */ + u32 sgpaddr; /*44 SG List/Sense Buf phy. Addr. */ + u32 senseptr; /*48 Sense data pointer */ + void (*post) (u8 *, u8 *); /*4C POST routine */ + struct scsi_cmnd *srb; /*50 SRB Pointer */ + struct sg_entry sglist[TOTAL_SG_ENTRY]; /*54 Start of SG list */ +}; + +/* Bit Definition for status */ #define SCB_RENT 0x01 #define SCB_PEND 0x02 #define SCB_CONTIG 0x04 /* Contigent Allegiance */ @@ -425,17 +395,17 @@ #define SCB_BUSY 0x10 #define SCB_DONE 0x20 -/* Opcodes of SCB_Opcode */ +/* Opcodes for opcode */ #define ExecSCSI 0x1 #define BusDevRst 0x2 #define AbortCmd 0x3 -/* Bit Definition for SCB_Mode */ +/* Bit Definition for mode */ #define SCM_RSENS 0x01 /* request sense mode */ -/* Bit Definition for SCB_Flags */ +/* Bit Definition for flags */ #define SCF_DONE 0x01 #define SCF_POST 0x02 #define SCF_SENSE 0x04 @@ -492,15 +462,14 @@ #define MSG_IDENT 0x80 Target Device Control Structure **********************************************************************/ -typedef struct Tar_Ctrl_Struc { - UWORD TCS_Flags; /* 0 */ - UBYTE TCS_JS_Period; /* 2 */ - UBYTE TCS_SConfig0; /* 3 */ - - UWORD TCS_DrvFlags; /* 4 */ - UBYTE TCS_DrvHead; /* 6 */ - UBYTE TCS_DrvSector; /* 7 */ -} TCS; +struct target_control { + u16 flags; + u8 js_period; + u8 sconfig0; + u16 drv_flags; + u8 heads; + u8 sectors; +}; /*********************************************************************** Target Device Control Structure @@ -523,62 +492,53 @@ #define TCF_DRV_BUSY 0x01 /* #define TCF_DRV_EN_TAG 0x0800 #define TCF_DRV_255_63 0x0400 -typedef struct I91u_Adpt_Struc { - UWORD ADPT_BIOS; /* 0 */ - UWORD ADPT_BASE; /* 1 */ - UBYTE ADPT_Bus; /* 2 */ - UBYTE ADPT_Device; /* 3 */ - UBYTE ADPT_INTR; /* 4 */ -} INI_ADPT_STRUCT; - - /*********************************************************************** Host Adapter Control Structure ************************************************************************/ -typedef struct Ha_Ctrl_Struc { - UWORD HCS_Base; /* 00 */ - UWORD HCS_BIOS; /* 02 */ - UBYTE HCS_Intr; /* 04 */ - UBYTE HCS_SCSI_ID; /* 05 */ - UBYTE HCS_MaxTar; /* 06 */ - UBYTE HCS_NumScbs; /* 07 */ - - UBYTE HCS_Flags; /* 08 */ - UBYTE HCS_Index; /* 09 */ - UBYTE HCS_HaId; /* 0A */ - UBYTE HCS_Config; /* 0B */ - UWORD HCS_IdMask; /* 0C */ - UBYTE HCS_Semaph; /* 0E */ - UBYTE HCS_Phase; /* 0F */ - UBYTE HCS_JSStatus0; /* 10 */ - UBYTE HCS_JSInt; /* 11 */ - UBYTE HCS_JSStatus1; /* 12 */ - UBYTE HCS_SConf1; /* 13 */ - - UBYTE HCS_Msg[8]; /* 14 */ - SCB *HCS_NxtAvail; /* 1C */ - SCB *HCS_Scb; /* 20 */ - SCB *HCS_ScbEnd; /* 24 */ - SCB *HCS_NxtPend; /* 28 */ - SCB *HCS_NxtContig; /* 2C */ - SCB *HCS_ActScb; /* 30 */ - TCS *HCS_ActTcs; /* 34 */ - - SCB *HCS_FirstAvail; /* 38 */ - SCB *HCS_LastAvail; /* 3C */ - SCB *HCS_FirstPend; /* 40 */ - SCB *HCS_LastPend; /* 44 */ - SCB *HCS_FirstBusy; /* 48 */ - SCB *HCS_LastBusy; /* 4C */ - SCB *HCS_FirstDone; /* 50 */ - SCB *HCS_LastDone; /* 54 */ - UBYTE HCS_MaxTags[16]; /* 58 */ - UBYTE HCS_ActTags[16]; /* 68 */ - TCS HCS_Tcs[MAX_TARGETS]; /* 78 */ - spinlock_t HCS_AvailLock; - spinlock_t HCS_SemaphLock; +struct initio_host { + u16 addr; /* 00 */ + u16 bios_addr; /* 02 */ + u8 irq; /* 04 */ + u8 scsi_id; /* 05 */ + u8 max_tar; /* 06 */ + u8 num_scbs; /* 07 */ + + u8 flags; /* 08 */ + u8 index; /* 09 */ + u8 ha_id; /* 0A */ + u8 config; /* 0B */ + u16 idmask; /* 0C */ + u8 semaph; /* 0E */ + u8 phase; /* 0F */ + u8 jsstatus0; /* 10 */ + u8 jsint; /* 11 */ + u8 jsstatus1; /* 12 */ + u8 sconf1; /* 13 */ + + u8 msg[8]; /* 14 */ + struct scsi_ctrl_blk *next_avail; /* 1C */ + struct scsi_ctrl_blk *scb; /* 20 */ + struct scsi_ctrl_blk *scb_end; /* 24 */ /*UNUSED*/ + struct scsi_ctrl_blk *next_pending; /* 28 */ + struct scsi_ctrl_blk *next_contig; /* 2C */ /*UNUSED*/ + struct scsi_ctrl_blk *active; /* 30 */ + struct target_control *active_tc; /* 34 */ + + struct scsi_ctrl_blk *first_avail; /* 38 */ + struct scsi_ctrl_blk *last_avail; /* 3C */ + struct scsi_ctrl_blk *first_pending; /* 40 */ + struct scsi_ctrl_blk *last_pending; /* 44 */ + struct scsi_ctrl_blk *first_busy; /* 48 */ + struct scsi_ctrl_blk *last_busy; /* 4C */ + struct scsi_ctrl_blk *first_done; /* 50 */ + struct scsi_ctrl_blk *last_done; /* 54 */ + u8 max_tags[16]; /* 58 */ + u8 act_tags[16]; /* 68 */ + struct target_control targets[MAX_TARGETS]; /* 78 */ + spinlock_t avail_lock; + spinlock_t semaph_lock; struct pci_dev *pci_dev; -} HCS; +}; /* Bit Definition for HCB_Config */ #define HCC_SCSI_RESET 0x01 @@ -599,47 +559,47 @@ #define HCF_EXPECT_DONE_DISC 0x20 *******************************************************************/ typedef struct _NVRAM_SCSI { /* SCSI channel configuration */ - UCHAR NVM_ChSCSIID; /* 0Ch -> Channel SCSI ID */ - UCHAR NVM_ChConfig1; /* 0Dh -> Channel config 1 */ - UCHAR NVM_ChConfig2; /* 0Eh -> Channel config 2 */ - UCHAR NVM_NumOfTarg; /* 0Fh -> Number of SCSI target */ + u8 NVM_ChSCSIID; /* 0Ch -> Channel SCSI ID */ + u8 NVM_ChConfig1; /* 0Dh -> Channel config 1 */ + u8 NVM_ChConfig2; /* 0Eh -> Channel config 2 */ + u8 NVM_NumOfTarg; /* 0Fh -> Number of SCSI target */ /* SCSI target configuration */ - UCHAR NVM_Targ0Config; /* 10h -> Target 0 configuration */ - UCHAR NVM_Targ1Config; /* 11h -> Target 1 configuration */ - UCHAR NVM_Targ2Config; /* 12h -> Target 2 configuration */ - UCHAR NVM_Targ3Config; /* 13h -> Target 3 configuration */ - UCHAR NVM_Targ4Config; /* 14h -> Target 4 configuration */ - UCHAR NVM_Targ5Config; /* 15h -> Target 5 configuration */ - UCHAR NVM_Targ6Config; /* 16h -> Target 6 configuration */ - UCHAR NVM_Targ7Config; /* 17h -> Target 7 configuration */ - UCHAR NVM_Targ8Config; /* 18h -> Target 8 configuration */ - UCHAR NVM_Targ9Config; /* 19h -> Target 9 configuration */ - UCHAR NVM_TargAConfig; /* 1Ah -> Target A configuration */ - UCHAR NVM_TargBConfig; /* 1Bh -> Target B configuration */ - UCHAR NVM_TargCConfig; /* 1Ch -> Target C configuration */ - UCHAR NVM_TargDConfig; /* 1Dh -> Target D configuration */ - UCHAR NVM_TargEConfig; /* 1Eh -> Target E configuration */ - UCHAR NVM_TargFConfig; /* 1Fh -> Target F configuration */ + u8 NVM_Targ0Config; /* 10h -> Target 0 configuration */ + u8 NVM_Targ1Config; /* 11h -> Target 1 configuration */ + u8 NVM_Targ2Config; /* 12h -> Target 2 configuration */ + u8 NVM_Targ3Config; /* 13h -> Target 3 configuration */ + u8 NVM_Targ4Config; /* 14h -> Target 4 configuration */ + u8 NVM_Targ5Config; /* 15h -> Target 5 configuration */ + u8 NVM_Targ6Config; /* 16h -> Target 6 configuration */ + u8 NVM_Targ7Config; /* 17h -> Target 7 configuration */ + u8 NVM_Targ8Config; /* 18h -> Target 8 configuration */ + u8 NVM_Targ9Config; /* 19h -> Target 9 configuration */ + u8 NVM_TargAConfig; /* 1Ah -> Target A configuration */ + u8 NVM_TargBConfig; /* 1Bh -> Target B configuration */ + u8 NVM_TargCConfig; /* 1Ch -> Target C configuration */ + u8 NVM_TargDConfig; /* 1Dh -> Target D configuration */ + u8 NVM_TargEConfig; /* 1Eh -> Target E configuration */ + u8 NVM_TargFConfig; /* 1Fh -> Target F configuration */ } NVRAM_SCSI; typedef struct _NVRAM { /*----------header ---------------*/ - USHORT NVM_Signature; /* 0,1: Signature */ - UCHAR NVM_Size; /* 2: Size of data structure */ - UCHAR NVM_Revision; /* 3: Revision of data structure */ + u16 NVM_Signature; /* 0,1: Signature */ + u8 NVM_Size; /* 2: Size of data structure */ + u8 NVM_Revision; /* 3: Revision of data structure */ /* ----Host Adapter Structure ---- */ - UCHAR NVM_ModelByte0; /* 4: Model number (byte 0) */ - UCHAR NVM_ModelByte1; /* 5: Model number (byte 1) */ - UCHAR NVM_ModelInfo; /* 6: Model information */ - UCHAR NVM_NumOfCh; /* 7: Number of SCSI channel */ - UCHAR NVM_BIOSConfig1; /* 8: BIOS configuration 1 */ - UCHAR NVM_BIOSConfig2; /* 9: BIOS configuration 2 */ - UCHAR NVM_HAConfig1; /* A: Hoat adapter configuration 1 */ - UCHAR NVM_HAConfig2; /* B: Hoat adapter configuration 2 */ + u8 NVM_ModelByte0; /* 4: Model number (byte 0) */ + u8 NVM_ModelByte1; /* 5: Model number (byte 1) */ + u8 NVM_ModelInfo; /* 6: Model information */ + u8 NVM_NumOfCh; /* 7: Number of SCSI channel */ + u8 NVM_BIOSConfig1; /* 8: BIOS configuration 1 */ + u8 NVM_BIOSConfig2; /* 9: BIOS configuration 2 */ + u8 NVM_HAConfig1; /* A: Hoat adapter configuration 1 */ + u8 NVM_HAConfig2; /* B: Hoat adapter configuration 2 */ NVRAM_SCSI NVM_SCSIInfo[2]; - UCHAR NVM_reserved[10]; + u8 NVM_reserved[10]; /* ---------- CheckSum ---------- */ - USHORT NVM_CheckSum; /* 0x3E, 0x3F: Checksum of NVRam */ + u16 NVM_CheckSum; /* 0x3E, 0x3F: Checksum of NVRam */ } NVRAM, *PNVRAM; /* Bios Configuration for nvram->BIOSConfig1 */ @@ -681,19 +641,6 @@ #define DISC_NOT_ALLOW 0x80 /* #define DISC_ALLOW 0xC0 /* Disconnect is allowed */ #define SCSICMD_RequestSense 0x03 -typedef struct _HCSinfo { - ULONG base; - UCHAR vec; - UCHAR bios; /* High byte of BIOS address */ - USHORT BaseAndBios; /* high byte: pHcsInfo->bios,low byte:pHcsInfo->base */ -} HCSINFO; - -#define TUL_RD(x,y) (UCHAR)(inb( (int)((ULONG)(x+y)) )) -#define TUL_RDLONG(x,y) (ULONG)(inl((int)((ULONG)(x+y)) )) -#define TUL_WR( adr,data) outb( (UCHAR)(data), (int)(adr)) -#define TUL_WRSHORT(adr,data) outw( (UWORD)(data), (int)(adr)) -#define TUL_WRLONG( adr,data) outl( (ULONG)(data), (int)(adr)) - #define SCSI_ABORT_SNOOZE 0 #define SCSI_ABORT_SUCCESS 1 #define SCSI_ABORT_PENDING 2 diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index fa6ff29..072f577 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -540,32 +540,6 @@ struct ipr_cmnd *ipr_get_free_ipr_cmnd(s } /** - * ipr_unmap_sglist - Unmap scatterlist if mapped - * @ioa_cfg: ioa config struct - * @ipr_cmd: ipr command struct - * - * Return value: - * nothing - **/ -static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, - struct ipr_cmnd *ipr_cmd) -{ - struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; - - if (ipr_cmd->dma_use_sg) { - if (scsi_cmd->use_sg > 0) { - pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, - scsi_cmd->use_sg, - scsi_cmd->sc_data_direction); - } else { - pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, - scsi_cmd->request_bufflen, - scsi_cmd->sc_data_direction); - } - } -} - -/** * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts * @ioa_cfg: ioa config struct * @clr_ints: interrupts to clear @@ -677,7 +651,7 @@ static void ipr_scsi_eh_done(struct ipr_ scsi_cmd->result |= (DID_ERROR << 16); - ipr_unmap_sglist(ioa_cfg, ipr_cmd); + scsi_dma_unmap(ipr_cmd->scsi_cmd); scsi_cmd->scsi_done(scsi_cmd); list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); } @@ -4292,93 +4266,55 @@ static irqreturn_t ipr_isr(int irq, void static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, struct ipr_cmnd *ipr_cmd) { - int i; - struct scatterlist *sglist; + int i, nseg; + struct scatterlist *sg; u32 length; u32 ioadl_flags = 0; struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; - length = scsi_cmd->request_bufflen; - - if (length == 0) + length = scsi_bufflen(scsi_cmd); + if (!length) return 0; - if (scsi_cmd->use_sg) { - ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, - scsi_cmd->request_buffer, - scsi_cmd->use_sg, - scsi_cmd->sc_data_direction); - - if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { - ioadl_flags = IPR_IOADL_FLAGS_WRITE; - ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; - ioarcb->write_data_transfer_length = cpu_to_be32(length); - ioarcb->write_ioadl_len = - cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); - } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { - ioadl_flags = IPR_IOADL_FLAGS_READ; - ioarcb->read_data_transfer_length = cpu_to_be32(length); - ioarcb->read_ioadl_len = - cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); - } - - sglist = scsi_cmd->request_buffer; + nseg = scsi_dma_map(scsi_cmd); + if (nseg < 0) { + dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); + return -1; + } - if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { - ioadl = ioarcb->add_data.u.ioadl; - ioarcb->write_ioadl_addr = - cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + - offsetof(struct ipr_ioarcb, add_data)); - ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; - } + ipr_cmd->dma_use_sg = nseg; - for (i = 0; i < ipr_cmd->dma_use_sg; i++) { - ioadl[i].flags_and_data_len = - cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); - ioadl[i].address = - cpu_to_be32(sg_dma_address(&sglist[i])); - } + if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { + ioadl_flags = IPR_IOADL_FLAGS_WRITE; + ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; + ioarcb->write_data_transfer_length = cpu_to_be32(length); + ioarcb->write_ioadl_len = + cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); + } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { + ioadl_flags = IPR_IOADL_FLAGS_READ; + ioarcb->read_data_transfer_length = cpu_to_be32(length); + ioarcb->read_ioadl_len = + cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); + } - if (likely(ipr_cmd->dma_use_sg)) { - ioadl[i-1].flags_and_data_len |= - cpu_to_be32(IPR_IOADL_FLAGS_LAST); - return 0; - } else - dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); - } else { - if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { - ioadl_flags = IPR_IOADL_FLAGS_WRITE; - ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; - ioarcb->write_data_transfer_length = cpu_to_be32(length); - ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); - } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { - ioadl_flags = IPR_IOADL_FLAGS_READ; - ioarcb->read_data_transfer_length = cpu_to_be32(length); - ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); - } + if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { + ioadl = ioarcb->add_data.u.ioadl; + ioarcb->write_ioadl_addr = + cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + + offsetof(struct ipr_ioarcb, add_data)); + ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; + } - ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, - scsi_cmd->request_buffer, length, - scsi_cmd->sc_data_direction); - - if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { - ioadl = ioarcb->add_data.u.ioadl; - ioarcb->write_ioadl_addr = - cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + - offsetof(struct ipr_ioarcb, add_data)); - ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; - ipr_cmd->dma_use_sg = 1; - ioadl[0].flags_and_data_len = - cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); - ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); - return 0; - } else - dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); + scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { + ioadl[i].flags_and_data_len = + cpu_to_be32(ioadl_flags | sg_dma_len(sg)); + ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); } - return -1; + ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); + return 0; } /** @@ -4441,7 +4377,7 @@ static void ipr_erp_done(struct ipr_cmnd res->needs_sync_complete = 1; res->in_erp = 0; } - ipr_unmap_sglist(ioa_cfg, ipr_cmd); + scsi_dma_unmap(ipr_cmd->scsi_cmd); list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); scsi_cmd->scsi_done(scsi_cmd); } @@ -4819,7 +4755,7 @@ static void ipr_erp_start(struct ipr_ioa break; } - ipr_unmap_sglist(ioa_cfg, ipr_cmd); + scsi_dma_unmap(ipr_cmd->scsi_cmd); list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); scsi_cmd->scsi_done(scsi_cmd); } @@ -4840,10 +4776,10 @@ static void ipr_scsi_done(struct ipr_cmn struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); - scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); + scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { - ipr_unmap_sglist(ioa_cfg, ipr_cmd); + scsi_dma_unmap(ipr_cmd->scsi_cmd); list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); scsi_cmd->scsi_done(scsi_cmd); } else diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 8b704f7..84f4f5d 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -211,19 +211,6 @@ #if !defined(__i386__) && !defined(__ia6 #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" #endif -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0) -#include -#include "sd.h" -#define IPS_LOCK_SAVE(lock,flags) spin_lock_irqsave(&io_request_lock,flags) -#define IPS_UNLOCK_RESTORE(lock,flags) spin_unlock_irqrestore(&io_request_lock,flags) -#ifndef __devexit_p -#define __devexit_p(x) x -#endif -#else -#define IPS_LOCK_SAVE(lock,flags) do{spin_lock(lock);(void)flags;}while(0) -#define IPS_UNLOCK_RESTORE(lock,flags) do{spin_unlock(lock);(void)flags;}while(0) -#endif - #define IPS_DMA_DIR(scb) ((!scb->scsi_cmd || ips_is_passthru(scb->scsi_cmd) || \ DMA_NONE == scb->scsi_cmd->sc_data_direction) ? \ PCI_DMA_BIDIRECTIONAL : \ @@ -381,24 +368,13 @@ static struct scsi_host_template ips_dri .eh_abort_handler = ips_eh_abort, .eh_host_reset_handler = ips_eh_reset, .proc_name = "ips", -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) .proc_info = ips_proc_info, .slave_configure = ips_slave_configure, -#else - .proc_info = ips_proc24_info, - .select_queue_depths = ips_select_queue_depth, -#endif .bios_param = ips_biosparam, .this_id = -1, .sg_tablesize = IPS_MAX_SG, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) - .use_new_eh_code = 1, -#endif -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) - .highmem_io = 1, -#endif }; @@ -731,7 +707,7 @@ ips_release(struct Scsi_Host *sh) /* free IRQ */ free_irq(ha->irq, ha); - IPS_REMOVE_HOST(sh); + scsi_remove_host(sh); scsi_host_put(sh); ips_released_controllers++; @@ -813,7 +789,6 @@ int ips_eh_abort(struct scsi_cmnd *SC) ips_ha_t *ha; ips_copp_wait_item_t *item; int ret; - unsigned long cpu_flags; struct Scsi_Host *host; METHOD_TRACE("ips_eh_abort", 1); @@ -830,7 +805,7 @@ int ips_eh_abort(struct scsi_cmnd *SC) if (!ha->active) return (FAILED); - IPS_LOCK_SAVE(host->host_lock, cpu_flags); + spin_lock(host->host_lock); /* See if the command is on the copp queue */ item = ha->copp_waitlist.head; @@ -851,7 +826,7 @@ int ips_eh_abort(struct scsi_cmnd *SC) ret = (FAILED); } - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); + spin_unlock(host->host_lock); return ret; } @@ -1176,18 +1151,10 @@ static int ips_queue(struct scsi_cmnd *S /* Set bios geometry for the controller */ /* */ /****************************************************************************/ -static int -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) -ips_biosparam(Disk * disk, kdev_t dev, int geom[]) -{ - ips_ha_t *ha = (ips_ha_t *) disk->device->host->hostdata; - unsigned long capacity = disk->capacity; -#else -ips_biosparam(struct scsi_device *sdev, struct block_device *bdev, - sector_t capacity, int geom[]) +static int ips_biosparam(struct scsi_device *sdev, struct block_device *bdev, + sector_t capacity, int geom[]) { ips_ha_t *ha = (ips_ha_t *) sdev->host->hostdata; -#endif int heads; int sectors; int cylinders; @@ -1225,70 +1192,6 @@ #endif return (0); } -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) - -/* ips_proc24_info is a wrapper around ips_proc_info * - * for compatibility with the 2.4 scsi parameters */ -static int -ips_proc24_info(char *buffer, char **start, off_t offset, int length, - int hostno, int func) -{ - int i; - - for (i = 0; i < ips_next_controller; i++) { - if (ips_sh[i] && ips_sh[i]->host_no == hostno) { - return ips_proc_info(ips_sh[i], buffer, start, - offset, length, func); - } - } - return -EINVAL; -} - -/****************************************************************************/ -/* */ -/* Routine Name: ips_select_queue_depth */ -/* */ -/* Routine Description: */ -/* */ -/* Select queue depths for the devices on the contoller */ -/* */ -/****************************************************************************/ -static void -ips_select_queue_depth(struct Scsi_Host *host, struct scsi_device * scsi_devs) -{ - struct scsi_device *device; - ips_ha_t *ha; - int count = 0; - int min; - - ha = IPS_HA(host); - min = ha->max_cmds / 4; - - for (device = scsi_devs; device; device = device->next) { - if (device->host == host) { - if ((device->channel == 0) && (device->type == 0)) - count++; - } - } - - for (device = scsi_devs; device; device = device->next) { - if (device->host == host) { - if ((device->channel == 0) && (device->type == 0)) { - device->queue_depth = - (ha->max_cmds - 1) / count; - if (device->queue_depth < min) - device->queue_depth = min; - } else { - device->queue_depth = 2; - } - - if (device->queue_depth < 2) - device->queue_depth = 2; - } - } -} - -#else /****************************************************************************/ /* */ /* Routine Name: ips_slave_configure */ @@ -1316,7 +1219,6 @@ ips_slave_configure(struct scsi_device * SDptr->skip_ms_page_3f = 1; return 0; } -#endif /****************************************************************************/ /* */ @@ -1331,7 +1233,6 @@ static irqreturn_t do_ipsintr(int irq, void *dev_id) { ips_ha_t *ha; - unsigned long cpu_flags; struct Scsi_Host *host; int irqstatus; @@ -1347,16 +1248,16 @@ do_ipsintr(int irq, void *dev_id) return IRQ_HANDLED; } - IPS_LOCK_SAVE(host->host_lock, cpu_flags); + spin_lock(host->host_lock); if (!ha->active) { - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); + spin_unlock(host->host_lock); return IRQ_HANDLED; } irqstatus = (*ha->func.intr) (ha); - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); + spin_unlock(host->host_lock); /* start the next command */ ips_next(ha, IPS_INTR_ON); @@ -2730,7 +2631,6 @@ ips_next(ips_ha_t * ha, int intr) struct scsi_cmnd *q; ips_copp_wait_item_t *item; int ret; - unsigned long cpu_flags = 0; struct Scsi_Host *host; METHOD_TRACE("ips_next", 1); @@ -2742,7 +2642,7 @@ ips_next(ips_ha_t * ha, int intr) * this command won't time out */ if (intr == IPS_INTR_ON) - IPS_LOCK_SAVE(host->host_lock, cpu_flags); + spin_lock(host->host_lock); if ((ha->subsys->param[3] & 0x300000) && (ha->scb_activelist.count == 0)) { @@ -2769,14 +2669,14 @@ ips_next(ips_ha_t * ha, int intr) item = ips_removeq_copp_head(&ha->copp_waitlist); ha->num_ioctl++; if (intr == IPS_INTR_ON) - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); + spin_unlock(host->host_lock); scb->scsi_cmd = item->scsi_cmd; kfree(item); ret = ips_make_passthru(ha, scb->scsi_cmd, scb, intr); if (intr == IPS_INTR_ON) - IPS_LOCK_SAVE(host->host_lock, cpu_flags); + spin_lock(host->host_lock); switch (ret) { case IPS_FAILURE: if (scb->scsi_cmd) { @@ -2846,7 +2746,7 @@ ips_next(ips_ha_t * ha, int intr) SC = ips_removeq_wait(&ha->scb_waitlist, q); if (intr == IPS_INTR_ON) - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); /* Unlock HA after command is taken off queue */ + spin_unlock(host->host_lock); /* Unlock HA after command is taken off queue */ SC->result = DID_OK; SC->host_scribble = NULL; @@ -2919,7 +2819,7 @@ ips_next(ips_ha_t * ha, int intr) scb->dcdb.transfer_length = 0; } if (intr == IPS_INTR_ON) - IPS_LOCK_SAVE(host->host_lock, cpu_flags); + spin_lock(host->host_lock); ret = ips_send_cmd(ha, scb); @@ -2958,7 +2858,7 @@ ips_next(ips_ha_t * ha, int intr) } /* end while */ if (intr == IPS_INTR_ON) - IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); + spin_unlock(host->host_lock); } /****************************************************************************/ @@ -7004,7 +6904,6 @@ ips_register_scsi(int index) kfree(oldha); ips_sh[index] = sh; ips_ha[index] = ha; - IPS_SCSI_SET_DEVICE(sh, ha); /* Store away needed values for later use */ sh->io_port = ha->io_addr; @@ -7016,17 +6915,16 @@ ips_register_scsi(int index) sh->cmd_per_lun = sh->hostt->cmd_per_lun; sh->unchecked_isa_dma = sh->hostt->unchecked_isa_dma; sh->use_clustering = sh->hostt->use_clustering; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7) sh->max_sectors = 128; -#endif sh->max_id = ha->ntargets; sh->max_lun = ha->nlun; sh->max_channel = ha->nbus - 1; sh->can_queue = ha->max_cmds - 1; - IPS_ADD_HOST(sh, NULL); + scsi_add_host(sh, NULL); + scsi_scan_host(sh); + return 0; } @@ -7069,7 +6967,7 @@ ips_module_init(void) return -ENODEV; ips_driver_template.module = THIS_MODULE; ips_order_controllers(); - if (IPS_REGISTER_HOSTS(&ips_driver_template)) { + if (!ips_detect(&ips_driver_template)) { pci_unregister_driver(&ips_pci_driver); return -ENODEV; } @@ -7087,7 +6985,6 @@ ips_module_init(void) static void __exit ips_module_exit(void) { - IPS_UNREGISTER_HOSTS(&ips_driver_template); pci_unregister_driver(&ips_pci_driver); unregister_reboot_notifier(&ips_notifier); } @@ -7443,15 +7340,9 @@ ips_init_phase2(int index) return SUCCESS; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,9) MODULE_LICENSE("GPL"); -#endif - MODULE_DESCRIPTION("IBM ServeRAID Adapter Driver " IPS_VER_STRING); - -#ifdef MODULE_VERSION MODULE_VERSION(IPS_VER_STRING); -#endif /* diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h index b726dcc..24123d5 100644 --- a/drivers/scsi/ips.h +++ b/drivers/scsi/ips.h @@ -58,10 +58,6 @@ #include /* * Some handy macros */ - #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) || defined CONFIG_HIGHIO - #define IPS_HIGHIO - #endif - #define IPS_HA(x) ((ips_ha_t *) x->hostdata) #define IPS_COMMAND_ID(ha, scb) (int) (scb - ha->scbs) #define IPS_IS_TROMBONE(ha) (((ha->device_id == IPS_DEVICEID_COPPERHEAD) && \ @@ -84,38 +80,8 @@ #include #define IPS_SGLIST_SIZE(ha) (IPS_USE_ENH_SGLIST(ha) ? \ sizeof(IPS_ENH_SG_LIST) : sizeof(IPS_STD_SG_LIST)) - #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,4) - #define pci_set_dma_mask(dev,mask) ( mask > 0xffffffff ? 1:0 ) - #define scsi_set_pci_device(sh,dev) (0) - #endif - - #ifndef IRQ_NONE - typedef void irqreturn_t; - #define IRQ_NONE - #define IRQ_HANDLED - #define IRQ_RETVAL(x) - #endif - - #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) - #define IPS_REGISTER_HOSTS(SHT) scsi_register_module(MODULE_SCSI_HA,SHT) - #define IPS_UNREGISTER_HOSTS(SHT) scsi_unregister_module(MODULE_SCSI_HA,SHT) - #define IPS_ADD_HOST(shost,device) - #define IPS_REMOVE_HOST(shost) - #define IPS_SCSI_SET_DEVICE(sh,ha) scsi_set_pci_device(sh, (ha)->pcidev) - #define IPS_PRINTK(level, pcidev, format, arg...) \ - printk(level "%s %s:" format , "ips" , \ - (pcidev)->slot_name , ## arg) - #define scsi_host_alloc(sh,size) scsi_register(sh,size) - #define scsi_host_put(sh) scsi_unregister(sh) - #else - #define IPS_REGISTER_HOSTS(SHT) (!ips_detect(SHT)) - #define IPS_UNREGISTER_HOSTS(SHT) - #define IPS_ADD_HOST(shost,device) do { scsi_add_host(shost,device); scsi_scan_host(shost); } while (0) - #define IPS_REMOVE_HOST(shost) scsi_remove_host(shost) - #define IPS_SCSI_SET_DEVICE(sh,ha) do { } while (0) - #define IPS_PRINTK(level, pcidev, format, arg...) \ + #define IPS_PRINTK(level, pcidev, format, arg...) \ dev_printk(level , &((pcidev)->dev) , format , ## arg) - #endif #define MDELAY(n) \ do { \ @@ -134,7 +100,7 @@ #include #define pci_dma_hi32(a) ((a >> 16) >> 16) #define pci_dma_lo32(a) (a & 0xffffffff) - #if (BITS_PER_LONG > 32) || (defined CONFIG_HIGHMEM64G && defined IPS_HIGHIO) + #if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G) #define IPS_ENABLE_DMA64 (1) #else #define IPS_ENABLE_DMA64 (0) @@ -451,16 +417,10 @@ #include /* * Scsi_Host Template */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) - static int ips_proc24_info(char *, char **, off_t, int, int, int); - static void ips_select_queue_depth(struct Scsi_Host *, struct scsi_device *); - static int ips_biosparam(Disk *disk, kdev_t dev, int geom[]); -#else static int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int); static int ips_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[]); static int ips_slave_configure(struct scsi_device *SDptr); -#endif /* * Raid Command Formats diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c index 81e497d..8fd092c 100644 --- a/drivers/scsi/jazz_esp.c +++ b/drivers/scsi/jazz_esp.c @@ -1,6 +1,10 @@ /* jazz_esp.c: ESP front-end for MIPS JAZZ systems. * +<<<<<<< HEAD/drivers/scsi/jazz_esp.c * Copyright (C) 2007 Thomas Bogendörfer (tsbogend@alpha.frankende) +======= + * Copyright (C) 2007 Thomas Bogendörfer (tsbogend@alpha.frankende) +>>>>>>> /drivers/scsi/jazz_esp.c */ #include diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index b4b5269..d70ddfd 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -76,8 +76,8 @@ static void sas_scsi_task_done(struct sa hs = DID_NO_CONNECT; break; case SAS_DATA_UNDERRUN: - sc->resid = ts->residual; - if (sc->request_bufflen - sc->resid < sc->underflow) + scsi_set_resid(sc, ts->residual); + if (scsi_bufflen(sc) - scsi_get_resid(sc) < sc->underflow) hs = DID_ERROR; break; case SAS_DATA_OVERRUN: @@ -161,9 +161,9 @@ static struct sas_task *sas_create_task( task->ssp_task.task_attr = sas_scsi_get_task_attr(cmd); memcpy(task->ssp_task.cdb, cmd->cmnd, 16); - task->scatter = cmd->request_buffer; - task->num_scatter = cmd->use_sg; - task->total_xfer_len = cmd->request_bufflen; + task->scatter = scsi_sglist(cmd); + task->num_scatter = scsi_sg_count(cmd); + task->total_xfer_len = scsi_bufflen(cmd); task->data_dir = cmd->sc_data_direction; task->task_done = sas_scsi_task_done; diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index 5806ede..b12ad7c 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -77,7 +77,7 @@ #if 0 for (i = 0; i < cmd->cmd_len; ++i) printk(" %.2x", cmd->cmnd[i]); printk("\n" KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n", - cmd->use_sg, cmd->request_bufflen, cmd->request_buffer); + scsi_sg_count(cmd), scsi_bufflen(cmd), scsi_sglist(cmd)); } #endif @@ -173,8 +173,7 @@ static void mac53c94_start(struct fsc_st writeb(CMD_SELECT, ®s->command); state->phase = selecting; - if (cmd->use_sg > 0 || cmd->request_bufflen != 0) - set_dma_cmds(state, cmd); + set_dma_cmds(state, cmd); } static irqreturn_t do_mac53c94_interrupt(int irq, void *dev_id) @@ -262,7 +261,7 @@ #endif writeb(CMD_NOP, ®s->command); /* set DMA controller going if any data to transfer */ if ((stat & (STAT_MSG|STAT_CD)) == 0 - && (cmd->use_sg > 0 || cmd->request_bufflen != 0)) { + && (scsi_sg_count(cmd) > 0 || scsi_bufflen(cmd))) { nb = cmd->SCp.this_residual; if (nb > 0xfff0) nb = 0xfff0; @@ -310,14 +309,7 @@ #endif printk(KERN_DEBUG "intr %x before data xfer complete\n", intr); } writel(RUN << 16, &dma->control); /* stop dma */ - if (cmd->use_sg != 0) { - pci_unmap_sg(state->pdev, - (struct scatterlist *)cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - } else { - pci_unmap_single(state->pdev, state->dma_addr, - cmd->request_bufflen, cmd->sc_data_direction); - } + scsi_dma_unmap(cmd); /* should check dma status */ writeb(CMD_I_COMPLETE, ®s->command); state->phase = completing; @@ -365,47 +357,35 @@ static void cmd_done(struct fsc_state *s */ static void set_dma_cmds(struct fsc_state *state, struct scsi_cmnd *cmd) { - int i, dma_cmd, total; + int i, dma_cmd, total, nseg; struct scatterlist *scl; struct dbdma_cmd *dcmds; dma_addr_t dma_addr; u32 dma_len; + nseg = scsi_dma_map(cmd); + BUG_ON(nseg < 0); + if (!nseg) + return; + dma_cmd = cmd->sc_data_direction == DMA_TO_DEVICE ? OUTPUT_MORE : INPUT_MORE; dcmds = state->dma_cmds; - if (cmd->use_sg > 0) { - int nseg; - - total = 0; - scl = (struct scatterlist *) cmd->request_buffer; - nseg = pci_map_sg(state->pdev, scl, cmd->use_sg, - cmd->sc_data_direction); - for (i = 0; i < nseg; ++i) { - dma_addr = sg_dma_address(scl); - dma_len = sg_dma_len(scl); - if (dma_len > 0xffff) - panic("mac53c94: scatterlist element >= 64k"); - total += dma_len; - st_le16(&dcmds->req_count, dma_len); - st_le16(&dcmds->command, dma_cmd); - st_le32(&dcmds->phy_addr, dma_addr); - dcmds->xfer_status = 0; - ++scl; - ++dcmds; - } - } else { - total = cmd->request_bufflen; - if (total > 0xffff) - panic("mac53c94: transfer size >= 64k"); - dma_addr = pci_map_single(state->pdev, cmd->request_buffer, - total, cmd->sc_data_direction); - state->dma_addr = dma_addr; - st_le16(&dcmds->req_count, total); + total = 0; + + scsi_for_each_sg(cmd, scl, nseg, i) { + dma_addr = sg_dma_address(scl); + dma_len = sg_dma_len(scl); + if (dma_len > 0xffff) + panic("mac53c94: scatterlist element >= 64k"); + total += dma_len; + st_le16(&dcmds->req_count, dma_len); + st_le16(&dcmds->command, dma_cmd); st_le32(&dcmds->phy_addr, dma_addr); dcmds->xfer_status = 0; ++dcmds; } + dma_cmd += OUTPUT_LAST - OUTPUT_MORE; st_le16(&dcmds[-1].command, dma_cmd); st_le16(&dcmds->command, DBDMA_STOP); diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 3cce75d..40ee07d 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -3571,7 +3571,7 @@ #endif /* * The user passthru structure */ - upthru = (mega_passthru __user *)MBOX(uioc)->xferaddr; + upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; /* * Copy in the user passthru here. @@ -3623,7 +3623,7 @@ #endif /* * Get the user data */ - if( copy_from_user(data, (char __user *)uxferaddr, + if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, pthru->dataxferlen) ) { rval = (-EFAULT); goto freemem_and_return; @@ -3649,7 +3649,7 @@ #endif * Is data going up-stream */ if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { - if( copy_to_user((char __user *)uxferaddr, data, + if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, pthru->dataxferlen) ) { rval = (-EFAULT); } @@ -3702,7 +3702,7 @@ freemem_and_return: /* * Get the user data */ - if( copy_from_user(data, (char __user *)uxferaddr, + if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, uioc.xferlen) ) { pci_free_consistent(pdev, @@ -3742,7 +3742,7 @@ freemem_and_return: * Is data going up-stream */ if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { - if( copy_to_user((char __user *)uxferaddr, data, + if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, uioc.xferlen) ) { rval = (-EFAULT); diff --git a/drivers/scsi/mvme16x.c b/drivers/scsi/mvme16x.c deleted file mode 100644 index 575fe6f..0000000 --- a/drivers/scsi/mvme16x.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux. - * - * Based on work by Alan Hourihane - */ -#include -#include -#include - -#include -#include -#include -#include - -#include "scsi.h" -#include -#include "53c7xx.h" -#include "mvme16x.h" - -#include - - -int mvme16x_scsi_detect(struct scsi_host_template *tpnt) -{ - static unsigned char called = 0; - int clock; - long long options; - - if (!MACH_IS_MVME16x) - return 0; - if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) { - printk ("SCSI detection disabled, SCSI chip not present\n"); - return 0; - } - if (called) - return 0; - - tpnt->proc_name = "MVME16x"; - - options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; - - clock = 66000000; /* 66MHz SCSI Clock */ - - ncr53c7xx_init(tpnt, 0, 710, (unsigned long)0xfff47000, - 0, MVME16x_IRQ_SCSI, DMA_NONE, - options, clock); - called = 1; - return 1; -} - -static int mvme16x_scsi_release(struct Scsi_Host *shost) -{ - if (shost->irq) - free_irq(shost->irq, NULL); - if (shost->dma_channel != 0xff) - free_dma(shost->dma_channel); - if (shost->io_port && shost->n_io_port) - release_region(shost->io_port, shost->n_io_port); - scsi_unregister(shost); - return 0; -} - -static struct scsi_host_template driver_template = { - .name = "MVME16x NCR53c710 SCSI", - .detect = mvme16x_scsi_detect, - .release = mvme16x_scsi_release, - .queuecommand = NCR53c7xx_queue_command, - .abort = NCR53c7xx_abort, - .reset = NCR53c7xx_reset, - .can_queue = 24, - .this_id = 7, - .sg_tablesize = 63, - .cmd_per_lun = 3, - .use_clustering = DISABLE_CLUSTERING -}; - - -#include "scsi_module.c" diff --git a/drivers/scsi/mvme16x.h b/drivers/scsi/mvme16x.h deleted file mode 100644 index 73e33b3..0000000 --- a/drivers/scsi/mvme16x.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef MVME16x_SCSI_H -#define MVME16x_SCSI_H - -#include - -int mvme16x_scsi_detect(struct scsi_host_template *); -const char *NCR53c7x0_info(void); -int NCR53c7xx_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); -int NCR53c7xx_abort(Scsi_Cmnd *); -int NCR53c7x0_release (struct Scsi_Host *); -int NCR53c7xx_reset(Scsi_Cmnd *, unsigned int); -void NCR53c7x0_intr(int irq, void *dev_id); - -#ifndef CMD_PER_LUN -#define CMD_PER_LUN 3 -#endif - -#ifndef CAN_QUEUE -#define CAN_QUEUE 24 -#endif - -#include - -#endif /* MVME16x_SCSI_H */ diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index f6f561d..e4dfdfb 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -49,10 +49,6 @@ #include #include #include -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) -# include -#endif - #include "nsp32.h" @@ -199,17 +195,9 @@ static int __init init_nsp32 (void) static void __exit exit_nsp32 (void); /* struct struct scsi_host_template */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) static int nsp32_proc_info (struct Scsi_Host *, char *, char **, off_t, int, int); -#else -static int nsp32_proc_info (char *, char **, off_t, int, int, int); -#endif -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) static int nsp32_detect (struct pci_dev *pdev); -#else -static int nsp32_detect (struct scsi_host_template *); -#endif static int nsp32_queuecommand(struct scsi_cmnd *, void (*done)(struct scsi_cmnd *)); static const char *nsp32_info (struct Scsi_Host *); @@ -296,15 +284,7 @@ static struct scsi_host_template nsp32_t .eh_abort_handler = nsp32_eh_abort, .eh_bus_reset_handler = nsp32_eh_bus_reset, .eh_host_reset_handler = nsp32_eh_host_reset, -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,74)) - .detect = nsp32_detect, - .release = nsp32_release, -#endif -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,2)) - .use_new_eh_code = 1, -#else /* .highmem_io = 1, */ -#endif }; #include "nsp32_io.h" @@ -1210,13 +1190,9 @@ static irqreturn_t do_nsp32_isr(int irq, unsigned long flags; int ret; int handled = 0; - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) struct Scsi_Host *host = data->Host; + spin_lock_irqsave(host->host_lock, flags); -#else - spin_lock_irqsave(&io_request_lock, flags); -#endif /* * IRQ check, then enable IRQ mask @@ -1480,11 +1456,7 @@ #endif nsp32_write2(base, IRQ_CONTROL, 0); out2: -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) spin_unlock_irqrestore(host->host_lock, flags); -#else - spin_unlock_irqrestore(&io_request_lock, flags); -#endif nsp32_dbg(NSP32_DEBUG_INTR, "exit"); @@ -1499,28 +1471,15 @@ #define SPRINTF(args...) \ nsp32_dbg(NSP32_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ } \ } while(0) -static int nsp32_proc_info( -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) - struct Scsi_Host *host, -#endif - char *buffer, - char **start, - off_t offset, - int length, -#if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) - int hostno, -#endif - int inout) + +static int nsp32_proc_info(struct Scsi_Host *host, char *buffer, char **start, + off_t offset, int length, int inout) { char *pos = buffer; int thislength; unsigned long flags; nsp32_hw_data *data; -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) int hostno; -#else - struct Scsi_Host *host; -#endif unsigned int base; unsigned char mode_reg; int id, speed; @@ -1531,15 +1490,7 @@ #endif return -EINVAL; } -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) hostno = host->host_no; -#else - /* search this HBA host */ - host = scsi_host_hn_get(hostno); - if (host == NULL) { - return -ESRCH; - } -#endif data = (nsp32_hw_data *)host->hostdata; base = host->io_port; @@ -2674,17 +2625,7 @@ static void nsp32_sack_negate(nsp32_hw_d * 0x900-0xbff: (map same 0x800-0x8ff I/O port image repeatedly) * 0xc00-0xfff: CardBus status registers */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) -#define DETECT_OK 0 -#define DETECT_NG 1 -#define PCIDEV pdev static int nsp32_detect(struct pci_dev *pdev) -#else -#define DETECT_OK 1 -#define DETECT_NG 0 -#define PCIDEV (data->Pci) -static int nsp32_detect(struct scsi_host_template *sht) -#endif { struct Scsi_Host *host; /* registered host structure */ struct resource *res; @@ -2697,11 +2638,7 @@ #endif /* * register this HBA as SCSI device */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) host = scsi_host_alloc(&nsp32_template, sizeof(nsp32_hw_data)); -#else - host = scsi_register(sht, sizeof(nsp32_hw_data)); -#endif if (host == NULL) { nsp32_msg (KERN_ERR, "failed to scsi register"); goto err; @@ -2719,9 +2656,6 @@ #endif host->unique_id = data->BaseAddress; host->n_io_port = data->NumAddress; host->base = (unsigned long)data->MmioAddress; -#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,63)) - scsi_set_pci_device(host, PCIDEV); -#endif data->Host = host; spin_lock_init(&(data->Lock)); @@ -2776,7 +2710,7 @@ #endif /* * setup DMA */ - if (pci_set_dma_mask(PCIDEV, DMA_32BIT_MASK) != 0) { + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) { nsp32_msg (KERN_ERR, "failed to set PCI DMA mask"); goto scsi_unregister; } @@ -2784,7 +2718,7 @@ #endif /* * allocate autoparam DMA resource. */ - data->autoparam = pci_alloc_consistent(PCIDEV, sizeof(nsp32_autoparam), &(data->auto_paddr)); + data->autoparam = pci_alloc_consistent(pdev, sizeof(nsp32_autoparam), &(data->auto_paddr)); if (data->autoparam == NULL) { nsp32_msg(KERN_ERR, "failed to allocate DMA memory"); goto scsi_unregister; @@ -2793,7 +2727,7 @@ #endif /* * allocate scatter-gather DMA resource. */ - data->sg_list = pci_alloc_consistent(PCIDEV, NSP32_SG_TABLE_SIZE, + data->sg_list = pci_alloc_consistent(pdev, NSP32_SG_TABLE_SIZE, &(data->sg_paddr)); if (data->sg_list == NULL) { nsp32_msg(KERN_ERR, "failed to allocate DMA memory"); @@ -2883,16 +2817,14 @@ #endif goto free_irq; } -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) - ret = scsi_add_host(host, &PCIDEV->dev); + ret = scsi_add_host(host, &pdev->dev); if (ret) { nsp32_msg(KERN_ERR, "failed to add scsi host"); goto free_region; } scsi_scan_host(host); -#endif - pci_set_drvdata(PCIDEV, host); - return DETECT_OK; + pci_set_drvdata(pdev, host); + return 0; free_region: release_region(host->io_port, host->n_io_port); @@ -2901,22 +2833,19 @@ #endif free_irq(host->irq, data); free_sg_list: - pci_free_consistent(PCIDEV, NSP32_SG_TABLE_SIZE, + pci_free_consistent(pdev, NSP32_SG_TABLE_SIZE, data->sg_list, data->sg_paddr); free_autoparam: - pci_free_consistent(PCIDEV, sizeof(nsp32_autoparam), + pci_free_consistent(pdev, sizeof(nsp32_autoparam), data->autoparam, data->auto_paddr); scsi_unregister: scsi_host_put(host); err: - return DETECT_NG; + return 1; } -#undef DETECT_OK -#undef DETECT_NG -#undef PCIDEV static int nsp32_release(struct Scsi_Host *host) { @@ -3525,11 +3454,7 @@ static int __devinit nsp32_probe(struct pci_set_master(pdev); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) ret = nsp32_detect(pdev); -#else - ret = scsi_register_host(&nsp32_template); -#endif nsp32_msg(KERN_INFO, "irq: %i mmio: %p+0x%lx slot: %s model: %s", pdev->irq, @@ -3544,25 +3469,17 @@ #endif static void __devexit nsp32_remove(struct pci_dev *pdev) { -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) struct Scsi_Host *host = pci_get_drvdata(pdev); -#endif nsp32_dbg(NSP32_DEBUG_REGISTER, "enter"); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) scsi_remove_host(host); nsp32_release(host); scsi_host_put(host); -#else - scsi_unregister_host(&nsp32_template); -#endif } - - static struct pci_driver nsp32_driver = { .name = "nsp32", .id_table = nsp32_pci_table, diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index ffe75c4..2695b71 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -370,8 +370,6 @@ SYM53C500_intr(int irq, void *dev_id) DEB(unsigned char seq_reg;) unsigned char status, int_reg; unsigned char pio_status; - struct scatterlist *sglist; - unsigned int sgcount; int port_base = dev->io_port; struct sym53c500_data *data = (struct sym53c500_data *)dev->hostdata; @@ -434,20 +432,19 @@ #endif /* SYM53C500_DEBUG */ switch (status & 0x07) { /* scsi phase */ case 0x00: /* DATA-OUT */ if (int_reg & 0x10) { /* Target requesting info transfer */ + struct scatterlist *sg; + int i; + curSC->SCp.phase = data_out; VDEB(printk("SYM53C500: Data-Out phase\n")); outb(FLUSH_FIFO, port_base + CMD_REG); - LOAD_DMA_COUNT(port_base, curSC->request_bufflen); /* Max transfer size */ + LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */ outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG); - if (!curSC->use_sg) /* Don't use scatter-gather */ - SYM53C500_pio_write(fast_pio, port_base, curSC->request_buffer, curSC->request_bufflen); - else { /* use scatter-gather */ - sgcount = curSC->use_sg; - sglist = curSC->request_buffer; - while (sgcount--) { - SYM53C500_pio_write(fast_pio, port_base, page_address(sglist->page) + sglist->offset, sglist->length); - sglist++; - } + + scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { + SYM53C500_pio_write(fast_pio, port_base, + page_address(sg->page) + sg->offset, + sg->length); } REG0(port_base); } @@ -455,20 +452,19 @@ #endif /* SYM53C500_DEBUG */ case 0x01: /* DATA-IN */ if (int_reg & 0x10) { /* Target requesting info transfer */ + struct scatterlist *sg; + int i; + curSC->SCp.phase = data_in; VDEB(printk("SYM53C500: Data-In phase\n")); outb(FLUSH_FIFO, port_base + CMD_REG); - LOAD_DMA_COUNT(port_base, curSC->request_bufflen); /* Max transfer size */ + LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */ outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG); - if (!curSC->use_sg) /* Don't use scatter-gather */ - SYM53C500_pio_read(fast_pio, port_base, curSC->request_buffer, curSC->request_bufflen); - else { /* Use scatter-gather */ - sgcount = curSC->use_sg; - sglist = curSC->request_buffer; - while (sgcount--) { - SYM53C500_pio_read(fast_pio, port_base, page_address(sglist->page) + sglist->offset, sglist->length); - sglist++; - } + + scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { + SYM53C500_pio_read(fast_pio, port_base, + page_address(sg->page) + sg->offset, + sg->length); } REG0(port_base); } @@ -578,7 +574,7 @@ SYM53C500_queue(struct scsi_cmnd *SCpnt, DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id, - SCpnt->device->lun, SCpnt->request_bufflen)); + SCpnt->device->lun, scsi_bufflen(SCpnt))); VDEB(for (i = 0; i < SCpnt->cmd_len; i++) printk("cmd[%d]=%02x ", i, SCpnt->cmnd[i])); diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index ca46346..0f04258 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1633,7 +1633,7 @@ struct qla_init_msix_entry { uint16_t entry; uint16_t index; const char *name; - irqreturn_t (*handler)(int, void *); + irq_handler_t handler; }; static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = { diff --git a/drivers/scsi/qla4xxx/ql4_dbg.c b/drivers/scsi/qla4xxx/ql4_dbg.c index 6437d02..fcc184c 100644 --- a/drivers/scsi/qla4xxx/ql4_dbg.c +++ b/drivers/scsi/qla4xxx/ql4_dbg.c @@ -6,176 +6,9 @@ */ #include "ql4_def.h" -#include - -#if 0 - -static void qla4xxx_print_srb_info(struct srb * srb) -{ - printk("%s: srb = 0x%p, flags=0x%02x\n", __func__, srb, srb->flags); - printk("%s: cmd = 0x%p, saved_dma_handle = 0x%lx\n", - __func__, srb->cmd, (unsigned long) srb->dma_handle); - printk("%s: fw_ddb_index = %d, lun = %d\n", - __func__, srb->fw_ddb_index, srb->cmd->device->lun); - printk("%s: iocb_tov = %d\n", - __func__, srb->iocb_tov); - printk("%s: cc_stat = 0x%x, r_start = 0x%lx, u_start = 0x%lx\n\n", - __func__, srb->cc_stat, srb->r_start, srb->u_start); -} - -void qla4xxx_print_scsi_cmd(struct scsi_cmnd *cmd) -{ - printk("SCSI Command = 0x%p, Handle=0x%p\n", cmd, cmd->host_scribble); - printk(" b=%d, t=%02xh, l=%02xh, cmd_len = %02xh\n", - cmd->device->channel, cmd->device->id, cmd->device->lun, - cmd->cmd_len); - scsi_print_command(cmd); - printk(" seg_cnt = %d\n", cmd->use_sg); - printk(" request buffer = 0x%p, request buffer len = 0x%x\n", - cmd->request_buffer, cmd->request_bufflen); - if (cmd->use_sg) { - struct scatterlist *sg; - sg = (struct scatterlist *)cmd->request_buffer; - printk(" SG buffer: \n"); - qla4xxx_dump_buffer((caddr_t) sg, - (cmd->use_sg * sizeof(*sg))); - } - printk(" tag = %d, transfersize = 0x%x \n", cmd->tag, - cmd->transfersize); - printk(" Pid = %d, SP = 0x%p\n", (int)cmd->pid, cmd->SCp.ptr); - printk(" underflow size = 0x%x, direction=0x%x\n", cmd->underflow, - cmd->sc_data_direction); - printk(" Current time (jiffies) = 0x%lx, " - "timeout expires = 0x%lx\n", jiffies, cmd->eh_timeout.expires); - qla4xxx_print_srb_info((struct srb *) cmd->SCp.ptr); -} - -void __dump_registers(struct scsi_qla_host *ha) -{ - uint8_t i; - for (i = 0; i < MBOX_REG_COUNT; i++) { - printk(KERN_INFO "0x%02X mailbox[%d] = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, mailbox[i]), i, - readw(&ha->reg->mailbox[i])); - } - printk(KERN_INFO "0x%02X flash_address = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, flash_address), - readw(&ha->reg->flash_address)); - printk(KERN_INFO "0x%02X flash_data = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, flash_data), - readw(&ha->reg->flash_data)); - printk(KERN_INFO "0x%02X ctrl_status = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, ctrl_status), - readw(&ha->reg->ctrl_status)); - if (is_qla4010(ha)) { - printk(KERN_INFO "0x%02X nvram = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, u1.isp4010.nvram), - readw(&ha->reg->u1.isp4010.nvram)); - } - - else if (is_qla4022(ha) | is_qla4032(ha)) { - printk(KERN_INFO "0x%02X intr_mask = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u1.isp4022.intr_mask), - readw(&ha->reg->u1.isp4022.intr_mask)); - printk(KERN_INFO "0x%02X nvram = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, u1.isp4022.nvram), - readw(&ha->reg->u1.isp4022.nvram)); - printk(KERN_INFO "0x%02X semaphore = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u1.isp4022.semaphore), - readw(&ha->reg->u1.isp4022.semaphore)); - } - printk(KERN_INFO "0x%02X req_q_in = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, req_q_in), - readw(&ha->reg->req_q_in)); - printk(KERN_INFO "0x%02X rsp_q_out = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, rsp_q_out), - readw(&ha->reg->rsp_q_out)); - if (is_qla4010(ha)) { - printk(KERN_INFO "0x%02X ext_hw_conf = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4010.ext_hw_conf), - readw(&ha->reg->u2.isp4010.ext_hw_conf)); - printk(KERN_INFO "0x%02X port_ctrl = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4010.port_ctrl), - readw(&ha->reg->u2.isp4010.port_ctrl)); - printk(KERN_INFO "0x%02X port_status = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4010.port_status), - readw(&ha->reg->u2.isp4010.port_status)); - printk(KERN_INFO "0x%02X req_q_out = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4010.req_q_out), - readw(&ha->reg->u2.isp4010.req_q_out)); - printk(KERN_INFO "0x%02X gp_out = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, u2.isp4010.gp_out), - readw(&ha->reg->u2.isp4010.gp_out)); - printk(KERN_INFO "0x%02X gp_in = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, u2.isp4010.gp_in), - readw(&ha->reg->u2.isp4010.gp_in)); - printk(KERN_INFO "0x%02X port_err_status = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4010.port_err_status), - readw(&ha->reg->u2.isp4010.port_err_status)); - } - - else if (is_qla4022(ha) | is_qla4032(ha)) { - printk(KERN_INFO "Page 0 Registers:\n"); - printk(KERN_INFO "0x%02X ext_hw_conf = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p0.ext_hw_conf), - readw(&ha->reg->u2.isp4022.p0.ext_hw_conf)); - printk(KERN_INFO "0x%02X port_ctrl = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p0.port_ctrl), - readw(&ha->reg->u2.isp4022.p0.port_ctrl)); - printk(KERN_INFO "0x%02X port_status = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p0.port_status), - readw(&ha->reg->u2.isp4022.p0.port_status)); - printk(KERN_INFO "0x%02X gp_out = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p0.gp_out), - readw(&ha->reg->u2.isp4022.p0.gp_out)); - printk(KERN_INFO "0x%02X gp_in = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, u2.isp4022.p0.gp_in), - readw(&ha->reg->u2.isp4022.p0.gp_in)); - printk(KERN_INFO "0x%02X port_err_status = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p0.port_err_status), - readw(&ha->reg->u2.isp4022.p0.port_err_status)); - printk(KERN_INFO "Page 1 Registers:\n"); - writel(HOST_MEM_CFG_PAGE & set_rmask(CSR_SCSI_PAGE_SELECT), - &ha->reg->ctrl_status); - printk(KERN_INFO "0x%02X req_q_out = 0x%08X\n", - (uint8_t) offsetof(struct isp_reg, - u2.isp4022.p1.req_q_out), - readw(&ha->reg->u2.isp4022.p1.req_q_out)); - writel(PORT_CTRL_STAT_PAGE & set_rmask(CSR_SCSI_PAGE_SELECT), - &ha->reg->ctrl_status); - } -} - -void qla4xxx_dump_mbox_registers(struct scsi_qla_host *ha) -{ - unsigned long flags = 0; - int i = 0; - spin_lock_irqsave(&ha->hardware_lock, flags); - for (i = 1; i < MBOX_REG_COUNT; i++) - printk(KERN_INFO " Mailbox[%d] = %08x\n", i, - readw(&ha->reg->mailbox[i])); - spin_unlock_irqrestore(&ha->hardware_lock, flags); -} - -void qla4xxx_dump_registers(struct scsi_qla_host *ha) -{ - unsigned long flags = 0; - spin_lock_irqsave(&ha->hardware_lock, flags); - __dump_registers(ha); - spin_unlock_irqrestore(&ha->hardware_lock, flags); -} +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" void qla4xxx_dump_buffer(void *b, uint32_t size) { @@ -198,4 +31,3 @@ void qla4xxx_dump_buffer(void *b, uint32 printk(KERN_DEBUG "\n"); } -#endif /* 0 */ diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 6f4cf2d..accaf69 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -122,8 +122,7 @@ #define MAX_REQS_SERVICED_PER_INTR 16 #define ISCSI_IPADDR_SIZE 4 /* IP address size */ #define ISCSI_ALIAS_SIZE 32 /* ISCSI Alais name size */ -#define ISCSI_NAME_SIZE 255 /* ISCSI Name size - - * usually a string */ +#define ISCSI_NAME_SIZE 0xE0 /* ISCSI Name size */ #define LSDW(x) ((u32)((u64)(x))) #define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16)) @@ -187,9 +186,21 @@ #define SRB_ERR_OTHER 4 u_long u_start; /* Time when we handed the cmd to F/W */ }; - /* - * Device Database (DDB) structure - */ +/* + * Asynchronous Event Queue structure + */ +struct aen { + uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; +}; + +struct ql4_aen_log { + int count; + struct aen entry[MAX_AEN_ENTRIES]; +}; + +/* + * Device Database (DDB) structure + */ struct ddb_entry { struct list_head list; /* ddb list */ struct scsi_qla_host *ha; @@ -254,13 +265,6 @@ #define DF_NO_RELOGIN 1 /* Do not relog #define DF_ISNS_DISCOVERED 2 /* Device was discovered via iSNS */ #define DF_FO_MASKED 3 -/* - * Asynchronous Event Queue structure - */ -struct aen { - uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; -}; - #include "ql4_fw.h" #include "ql4_nvram.h" @@ -270,31 +274,31 @@ #include "ql4_nvram.h" */ struct scsi_qla_host { /* Linux adapter configuration data */ - struct Scsi_Host *host; /* pointer to host data */ - uint32_t tot_ddbs; unsigned long flags; -#define AF_ONLINE 0 /* 0x00000001 */ -#define AF_INIT_DONE 1 /* 0x00000002 */ -#define AF_MBOX_COMMAND 2 /* 0x00000004 */ -#define AF_MBOX_COMMAND_DONE 3 /* 0x00000008 */ -#define AF_INTERRUPTS_ON 6 /* 0x00000040 Not Used */ -#define AF_GET_CRASH_RECORD 7 /* 0x00000080 */ -#define AF_LINK_UP 8 /* 0x00000100 */ -#define AF_IRQ_ATTACHED 10 /* 0x00000400 */ -#define AF_ISNS_CMD_IN_PROCESS 12 /* 0x00001000 */ -#define AF_ISNS_CMD_DONE 13 /* 0x00002000 */ +#define AF_ONLINE 0 /* 0x00000001 */ +#define AF_INIT_DONE 1 /* 0x00000002 */ +#define AF_MBOX_COMMAND 2 /* 0x00000004 */ +#define AF_MBOX_COMMAND_DONE 3 /* 0x00000008 */ +#define AF_INTERRUPTS_ON 6 /* 0x00000040 */ +#define AF_GET_CRASH_RECORD 7 /* 0x00000080 */ +#define AF_LINK_UP 8 /* 0x00000100 */ +#define AF_IRQ_ATTACHED 10 /* 0x00000400 */ +#define AF_DISABLE_ACB_COMPLETE 11 /* 0x00000800 */ unsigned long dpc_flags; -#define DPC_RESET_HA 1 /* 0x00000002 */ -#define DPC_RETRY_RESET_HA 2 /* 0x00000004 */ -#define DPC_RELOGIN_DEVICE 3 /* 0x00000008 */ -#define DPC_RESET_HA_DESTROY_DDB_LIST 4 /* 0x00000010 */ -#define DPC_RESET_HA_INTR 5 /* 0x00000020 */ -#define DPC_ISNS_RESTART 7 /* 0x00000080 */ -#define DPC_AEN 9 /* 0x00000200 */ -#define DPC_GET_DHCP_IP_ADDR 15 /* 0x00008000 */ +#define DPC_RESET_HA 1 /* 0x00000002 */ +#define DPC_RETRY_RESET_HA 2 /* 0x00000004 */ +#define DPC_RELOGIN_DEVICE 3 /* 0x00000008 */ +#define DPC_RESET_HA_DESTROY_DDB_LIST 4 /* 0x00000010 */ +#define DPC_RESET_HA_INTR 5 /* 0x00000020 */ +#define DPC_ISNS_RESTART 7 /* 0x00000080 */ +#define DPC_AEN 9 /* 0x00000200 */ +#define DPC_GET_DHCP_IP_ADDR 15 /* 0x00008000 */ + + struct Scsi_Host *host; /* pointer to host data */ + uint32_t tot_ddbs; uint16_t iocb_cnt; uint16_t iocb_hiwat; @@ -344,6 +348,7 @@ #define MIN_IOBASE_LEN 0x100 uint32_t firmware_version[2]; uint32_t patch_number; uint32_t build_number; + uint32_t board_id; /* --- From Init_FW --- */ /* init_cb_t *init_cb; */ @@ -363,7 +368,6 @@ #define MIN_IOBASE_LEN 0x100 /* --- From GetFwState --- */ uint32_t firmware_state; - uint32_t board_id; uint32_t addl_fw_state; /* Linux kernel thread */ @@ -414,6 +418,8 @@ #define MEM_ALIGN_VALUE \ uint16_t aen_out; struct aen aen_q[MAX_AEN_ENTRIES]; + struct ql4_aen_log aen_log;/* tracks all aens */ + /* This mutex protects several threads to do mailbox commands * concurrently. */ @@ -585,10 +591,4 @@ #define PROCESS_ALL_AENS 0 #define FLUSH_DDB_CHANGED_AENS 1 #define RELOGIN_DDB_CHANGED_AENS 2 -#include "ql4_version.h" -#include "ql4_glbl.h" -#include "ql4_dbg.h" -#include "ql4_inline.h" - - #endif /*_QLA4XXX_H */ diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index 4eea8c5..9bb3d1d 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -20,143 +20,23 @@ #define MAX_DEV_DB_ENTRIES 512 *************************************************************************/ struct port_ctrl_stat_regs { - __le32 ext_hw_conf; /* 80 x50 R/W */ - __le32 intChipConfiguration; /* 84 x54 */ - __le32 port_ctrl; /* 88 x58 */ - __le32 port_status; /* 92 x5c */ - __le32 HostPrimMACHi; /* 96 x60 */ - __le32 HostPrimMACLow; /* 100 x64 */ - __le32 HostSecMACHi; /* 104 x68 */ - __le32 HostSecMACLow; /* 108 x6c */ - __le32 EPPrimMACHi; /* 112 x70 */ - __le32 EPPrimMACLow; /* 116 x74 */ - __le32 EPSecMACHi; /* 120 x78 */ - __le32 EPSecMACLow; /* 124 x7c */ - __le32 HostPrimIPHi; /* 128 x80 */ - __le32 HostPrimIPMidHi; /* 132 x84 */ - __le32 HostPrimIPMidLow; /* 136 x88 */ - __le32 HostPrimIPLow; /* 140 x8c */ - __le32 HostSecIPHi; /* 144 x90 */ - __le32 HostSecIPMidHi; /* 148 x94 */ - __le32 HostSecIPMidLow; /* 152 x98 */ - __le32 HostSecIPLow; /* 156 x9c */ - __le32 EPPrimIPHi; /* 160 xa0 */ - __le32 EPPrimIPMidHi; /* 164 xa4 */ - __le32 EPPrimIPMidLow; /* 168 xa8 */ - __le32 EPPrimIPLow; /* 172 xac */ - __le32 EPSecIPHi; /* 176 xb0 */ - __le32 EPSecIPMidHi; /* 180 xb4 */ - __le32 EPSecIPMidLow; /* 184 xb8 */ - __le32 EPSecIPLow; /* 188 xbc */ - __le32 IPReassemblyTimeout; /* 192 xc0 */ - __le32 EthMaxFramePayload; /* 196 xc4 */ - __le32 TCPMaxWindowSize; /* 200 xc8 */ - __le32 TCPCurrentTimestampHi; /* 204 xcc */ - __le32 TCPCurrentTimestampLow; /* 208 xd0 */ - __le32 LocalRAMAddress; /* 212 xd4 */ - __le32 LocalRAMData; /* 216 xd8 */ - __le32 PCSReserved1; /* 220 xdc */ - __le32 gp_out; /* 224 xe0 */ - __le32 gp_in; /* 228 xe4 */ - __le32 ProbeMuxAddr; /* 232 xe8 */ - __le32 ProbeMuxData; /* 236 xec */ - __le32 ERMQueueBaseAddr0; /* 240 xf0 */ - __le32 ERMQueueBaseAddr1; /* 244 xf4 */ - __le32 MACConfiguration; /* 248 xf8 */ - __le32 port_err_status; /* 252 xfc COR */ + __le32 ext_hw_conf; /* 0x50 R/W */ + __le32 rsrvd0; /* 0x54 */ + __le32 port_ctrl; /* 0x58 */ + __le32 port_status; /* 0x5c */ + __le32 rsrvd1[32]; /* 0x60-0xdf */ + __le32 gp_out; /* 0xe0 */ + __le32 gp_in; /* 0xe4 */ + __le32 rsrvd2[5]; /* 0xe8-0xfb */ + __le32 port_err_status; /* 0xfc */ }; struct host_mem_cfg_regs { - __le32 NetRequestQueueOut; /* 80 x50 */ - __le32 NetRequestQueueOutAddrHi; /* 84 x54 */ - __le32 NetRequestQueueOutAddrLow; /* 88 x58 */ - __le32 NetRequestQueueBaseAddrHi; /* 92 x5c */ - __le32 NetRequestQueueBaseAddrLow; /* 96 x60 */ - __le32 NetRequestQueueLength; /* 100 x64 */ - __le32 NetResponseQueueIn; /* 104 x68 */ - __le32 NetResponseQueueInAddrHi; /* 108 x6c */ - __le32 NetResponseQueueInAddrLow; /* 112 x70 */ - __le32 NetResponseQueueBaseAddrHi; /* 116 x74 */ - __le32 NetResponseQueueBaseAddrLow; /* 120 x78 */ - __le32 NetResponseQueueLength; /* 124 x7c */ - __le32 req_q_out; /* 128 x80 */ - __le32 RequestQueueOutAddrHi; /* 132 x84 */ - __le32 RequestQueueOutAddrLow; /* 136 x88 */ - __le32 RequestQueueBaseAddrHi; /* 140 x8c */ - __le32 RequestQueueBaseAddrLow; /* 144 x90 */ - __le32 RequestQueueLength; /* 148 x94 */ - __le32 ResponseQueueIn; /* 152 x98 */ - __le32 ResponseQueueInAddrHi; /* 156 x9c */ - __le32 ResponseQueueInAddrLow; /* 160 xa0 */ - __le32 ResponseQueueBaseAddrHi; /* 164 xa4 */ - __le32 ResponseQueueBaseAddrLow; /* 168 xa8 */ - __le32 ResponseQueueLength; /* 172 xac */ - __le32 NetRxLargeBufferQueueOut; /* 176 xb0 */ - __le32 NetRxLargeBufferQueueBaseAddrHi; /* 180 xb4 */ - __le32 NetRxLargeBufferQueueBaseAddrLow; /* 184 xb8 */ - __le32 NetRxLargeBufferQueueLength; /* 188 xbc */ - __le32 NetRxLargeBufferLength; /* 192 xc0 */ - __le32 NetRxSmallBufferQueueOut; /* 196 xc4 */ - __le32 NetRxSmallBufferQueueBaseAddrHi; /* 200 xc8 */ - __le32 NetRxSmallBufferQueueBaseAddrLow; /* 204 xcc */ - __le32 NetRxSmallBufferQueueLength; /* 208 xd0 */ - __le32 NetRxSmallBufferLength; /* 212 xd4 */ - __le32 HMCReserved0[10]; /* 216 xd8 */ + __le32 rsrvd0[12]; /* 0x50-0x79 */ + __le32 req_q_out; /* 0x80 */ + __le32 rsrvd1[31]; /* 0x84-0xFF */ }; -struct local_ram_cfg_regs { - __le32 BufletSize; /* 80 x50 */ - __le32 BufletMaxCount; /* 84 x54 */ - __le32 BufletCurrCount; /* 88 x58 */ - __le32 BufletPauseThresholdCount; /* 92 x5c */ - __le32 BufletTCPWinThresholdHi; /* 96 x60 */ - __le32 BufletTCPWinThresholdLow; /* 100 x64 */ - __le32 IPHashTableBaseAddr; /* 104 x68 */ - __le32 IPHashTableSize; /* 108 x6c */ - __le32 TCPHashTableBaseAddr; /* 112 x70 */ - __le32 TCPHashTableSize; /* 116 x74 */ - __le32 NCBAreaBaseAddr; /* 120 x78 */ - __le32 NCBMaxCount; /* 124 x7c */ - __le32 NCBCurrCount; /* 128 x80 */ - __le32 DRBAreaBaseAddr; /* 132 x84 */ - __le32 DRBMaxCount; /* 136 x88 */ - __le32 DRBCurrCount; /* 140 x8c */ - __le32 LRCReserved[28]; /* 144 x90 */ -}; - -struct prot_stat_regs { - __le32 MACTxFrameCount; /* 80 x50 R */ - __le32 MACTxByteCount; /* 84 x54 R */ - __le32 MACRxFrameCount; /* 88 x58 R */ - __le32 MACRxByteCount; /* 92 x5c R */ - __le32 MACCRCErrCount; /* 96 x60 R */ - __le32 MACEncErrCount; /* 100 x64 R */ - __le32 MACRxLengthErrCount; /* 104 x68 R */ - __le32 IPTxPacketCount; /* 108 x6c R */ - __le32 IPTxByteCount; /* 112 x70 R */ - __le32 IPTxFragmentCount; /* 116 x74 R */ - __le32 IPRxPacketCount; /* 120 x78 R */ - __le32 IPRxByteCount; /* 124 x7c R */ - __le32 IPRxFragmentCount; /* 128 x80 R */ - __le32 IPDatagramReassemblyCount; /* 132 x84 R */ - __le32 IPV6RxPacketCount; /* 136 x88 R */ - __le32 IPErrPacketCount; /* 140 x8c R */ - __le32 IPReassemblyErrCount; /* 144 x90 R */ - __le32 TCPTxSegmentCount; /* 148 x94 R */ - __le32 TCPTxByteCount; /* 152 x98 R */ - __le32 TCPRxSegmentCount; /* 156 x9c R */ - __le32 TCPRxByteCount; /* 160 xa0 R */ - __le32 TCPTimerExpCount; /* 164 xa4 R */ - __le32 TCPRxAckCount; /* 168 xa8 R */ - __le32 TCPTxAckCount; /* 172 xac R */ - __le32 TCPRxErrOOOCount; /* 176 xb0 R */ - __le32 PSReserved0; /* 180 xb4 */ - __le32 TCPRxWindowProbeUpdateCount; /* 184 xb8 R */ - __le32 ECCErrCorrectionCount; /* 188 xbc R */ - __le32 PSReserved1[16]; /* 192 xc0 */ -}; - - /* remote register set (access via PCI memory read/write) */ struct isp_reg { #define MBOX_REG_COUNT 8 @@ -207,11 +87,7 @@ #define MBOX_REG_COUNT 8 union { struct port_ctrl_stat_regs p0; struct host_mem_cfg_regs p1; - struct local_ram_cfg_regs p2; - struct prot_stat_regs p3; - __le32 r_union[44]; }; - } __attribute__ ((packed)) isp4022; } u2; }; /* 256 x100 */ @@ -296,6 +172,7 @@ #define NVR_WRITE_ENABLE 0x00000010 /* /* ISP Semaphore definitions */ /* ISP General Purpose Output definitions */ +#define GPOR_TOPCAT_RESET 0x00000004 /* shadow registers (DMA'd from HA to system memory. read only) */ struct shadow_regs { @@ -337,6 +214,7 @@ union external_hw_config_reg { /* Mailbox command definitions */ #define MBOX_CMD_ABOUT_FW 0x0009 +#define MBOX_CMD_PING 0x000B #define MBOX_CMD_LUN_RESET 0x0016 #define MBOX_CMD_GET_MANAGEMENT_DATA 0x001E #define MBOX_CMD_GET_FW_STATUS 0x001F @@ -364,6 +242,17 @@ #define DDB_DS_LOGIN_IN_PROCESS 0x07 #define MBOX_CMD_GET_FW_STATE 0x0069 #define MBOX_CMD_GET_INIT_FW_CTRL_BLOCK_DEFAULTS 0x006A #define MBOX_CMD_RESTORE_FACTORY_DEFAULTS 0x0087 +#define MBOX_CMD_SET_ACB 0x0088 +#define MBOX_CMD_GET_ACB 0x0089 +#define MBOX_CMD_DISABLE_ACB 0x008A +#define MBOX_CMD_GET_IPV6_NEIGHBOR_CACHE 0x008B +#define MBOX_CMD_GET_IPV6_DEST_CACHE 0x008C +#define MBOX_CMD_GET_IPV6_DEF_ROUTER_LIST 0x008D +#define MBOX_CMD_GET_IPV6_LCL_PREFIX_LIST 0x008E +#define MBOX_CMD_SET_IPV6_NEIGHBOR_CACHE 0x0090 +#define MBOX_CMD_GET_IP_ADDR_STATE 0x0091 +#define MBOX_CMD_SEND_IPV6_ROUTER_SOL 0x0092 +#define MBOX_CMD_GET_DB_ENTRY_CURRENT_IP_ADDR 0x0093 /* Mailbox 1 */ #define FW_STATE_READY 0x0000 @@ -409,6 +298,16 @@ #define MBOX_ASTS_IP_ADDRESS_CHANGED 0x #define MBOX_ASTS_DHCP_LEASE_EXPIRED 0x801D #define MBOX_ASTS_DHCP_LEASE_ACQUIRED 0x801F #define MBOX_ASTS_ISNS_UNSOLICITED_PDU_RECEIVED 0x8021 +#define MBOX_ASTS_DUPLICATE_IP 0x8025 +#define MBOX_ASTS_ARP_COMPLETE 0x8026 +#define MBOX_ASTS_SUBNET_STATE_CHANGE 0x8027 +#define MBOX_ASTS_RESPONSE_QUEUE_FULL 0x8028 +#define MBOX_ASTS_IP_ADDR_STATE_CHANGED 0x8029 +#define MBOX_ASTS_IPV6_PREFIX_EXPIRED 0x802B +#define MBOX_ASTS_IPV6_ND_PREFIX_IGNORED 0x802C +#define MBOX_ASTS_IPV6_LCL_PREFIX_IGNORED 0x802D +#define MBOX_ASTS_ICMPV6_ERROR_MSG_RCVD 0x802E + #define ISNS_EVENT_DATA_RECEIVED 0x0000 #define ISNS_EVENT_CONNECTION_OPENED 0x0001 #define ISNS_EVENT_CONNECTION_FAILED 0x0002 @@ -418,137 +317,166 @@ #define MBOX_ASTS_SUBNET_STATE_CHANGE 0 /*************************************************************************/ /* Host Adapter Initialization Control Block (from host) */ -struct init_fw_ctrl_blk { - uint8_t Version; /* 00 */ - uint8_t Control; /* 01 */ +struct addr_ctrl_blk { + uint8_t version; /* 00 */ + uint8_t control; /* 01 */ - uint16_t FwOptions; /* 02-03 */ + uint16_t fw_options; /* 02-03 */ #define FWOPT_HEARTBEAT_ENABLE 0x1000 #define FWOPT_SESSION_MODE 0x0040 #define FWOPT_INITIATOR_MODE 0x0020 #define FWOPT_TARGET_MODE 0x0010 - uint16_t ExecThrottle; /* 04-05 */ - uint8_t RetryCount; /* 06 */ - uint8_t RetryDelay; /* 07 */ - uint16_t MaxEthFrPayloadSize; /* 08-09 */ - uint16_t AddFwOptions; /* 0A-0B */ - - uint8_t HeartbeatInterval; /* 0C */ - uint8_t InstanceNumber; /* 0D */ - uint16_t RES2; /* 0E-0F */ - uint16_t ReqQConsumerIndex; /* 10-11 */ - uint16_t ComplQProducerIndex; /* 12-13 */ - uint16_t ReqQLen; /* 14-15 */ - uint16_t ComplQLen; /* 16-17 */ - uint32_t ReqQAddrLo; /* 18-1B */ - uint32_t ReqQAddrHi; /* 1C-1F */ - uint32_t ComplQAddrLo; /* 20-23 */ - uint32_t ComplQAddrHi; /* 24-27 */ - uint32_t ShadowRegBufAddrLo; /* 28-2B */ - uint32_t ShadowRegBufAddrHi; /* 2C-2F */ - - uint16_t iSCSIOptions; /* 30-31 */ - - uint16_t TCPOptions; /* 32-33 */ - - uint16_t IPOptions; /* 34-35 */ - - uint16_t MaxPDUSize; /* 36-37 */ - uint16_t RcvMarkerInt; /* 38-39 */ - uint16_t SndMarkerInt; /* 3A-3B */ - uint16_t InitMarkerlessInt; /* 3C-3D */ - uint16_t FirstBurstSize; /* 3E-3F */ - uint16_t DefaultTime2Wait; /* 40-41 */ - uint16_t DefaultTime2Retain; /* 42-43 */ - uint16_t MaxOutStndngR2T; /* 44-45 */ - uint16_t KeepAliveTimeout; /* 46-47 */ - uint16_t PortNumber; /* 48-49 */ - uint16_t MaxBurstSize; /* 4A-4B */ - uint32_t RES4; /* 4C-4F */ - uint8_t IPAddr[4]; /* 50-53 */ - uint8_t RES5[12]; /* 54-5F */ - uint8_t SubnetMask[4]; /* 60-63 */ - uint8_t RES6[12]; /* 64-6F */ - uint8_t GatewayIPAddr[4]; /* 70-73 */ - uint8_t RES7[12]; /* 74-7F */ - uint8_t PriDNSIPAddr[4]; /* 80-83 */ - uint8_t SecDNSIPAddr[4]; /* 84-87 */ - uint8_t RES8[8]; /* 88-8F */ - uint8_t Alias[32]; /* 90-AF */ - uint8_t TargAddr[8]; /* B0-B7 *//* /FIXME: Remove?? */ - uint8_t CHAPNameSecretsTable[8]; /* B8-BF */ - uint8_t EthernetMACAddr[6]; /* C0-C5 */ - uint16_t TargetPortalGroup; /* C6-C7 */ - uint8_t SendScale; /* C8 */ - uint8_t RecvScale; /* C9 */ - uint8_t TypeOfService; /* CA */ - uint8_t Time2Live; /* CB */ - uint16_t VLANPriority; /* CC-CD */ - uint16_t Reserved8; /* CE-CF */ - uint8_t SecIPAddr[4]; /* D0-D3 */ - uint8_t Reserved9[12]; /* D4-DF */ - uint8_t iSNSIPAddr[4]; /* E0-E3 */ - uint16_t iSNSServerPortNumber; /* E4-E5 */ - uint8_t Reserved10[10]; /* E6-EF */ - uint8_t SLPDAIPAddr[4]; /* F0-F3 */ - uint8_t Reserved11[12]; /* F4-FF */ - uint8_t iSCSINameString[256]; /* 100-1FF */ + uint16_t exec_throttle; /* 04-05 */ + uint8_t zio_count; /* 06 */ + uint8_t res0; /* 07 */ + uint16_t eth_mtu_size; /* 08-09 */ + uint16_t add_fw_options; /* 0A-0B */ + + uint8_t hb_interval; /* 0C */ + uint8_t inst_num; /* 0D */ + uint16_t res1; /* 0E-0F */ + uint16_t rqq_consumer_idx; /* 10-11 */ + uint16_t compq_producer_idx; /* 12-13 */ + uint16_t rqq_len; /* 14-15 */ + uint16_t compq_len; /* 16-17 */ + uint32_t rqq_addr_lo; /* 18-1B */ + uint32_t rqq_addr_hi; /* 1C-1F */ + uint32_t compq_addr_lo; /* 20-23 */ + uint32_t compq_addr_hi; /* 24-27 */ + uint32_t shdwreg_addr_lo; /* 28-2B */ + uint32_t shdwreg_addr_hi; /* 2C-2F */ + + uint16_t iscsi_opts; /* 30-31 */ + uint16_t ipv4_tcp_opts; /* 32-33 */ + uint16_t ipv4_ip_opts; /* 34-35 */ + + uint16_t iscsi_max_pdu_size; /* 36-37 */ + uint8_t ipv4_tos; /* 38 */ + uint8_t ipv4_ttl; /* 39 */ + uint8_t acb_version; /* 3A */ + uint8_t res2; /* 3B */ + uint16_t def_timeout; /* 3C-3D */ + uint16_t iscsi_fburst_len; /* 3E-3F */ + uint16_t iscsi_def_time2wait; /* 40-41 */ + uint16_t iscsi_def_time2retain; /* 42-43 */ + uint16_t iscsi_max_outstnd_r2t; /* 44-45 */ + uint16_t conn_ka_timeout; /* 46-47 */ + uint16_t ipv4_port; /* 48-49 */ + uint16_t iscsi_max_burst_len; /* 4A-4B */ + uint32_t res5; /* 4C-4F */ + uint8_t ipv4_addr[4]; /* 50-53 */ + uint16_t ipv4_vlan_tag; /* 54-55 */ + uint8_t ipv4_addr_state; /* 56 */ + uint8_t ipv4_cacheid; /* 57 */ + uint8_t res6[8]; /* 58-5F */ + uint8_t ipv4_subnet[4]; /* 60-63 */ + uint8_t res7[12]; /* 64-6F */ + uint8_t ipv4_gw_addr[4]; /* 70-73 */ + uint8_t res8[0xc]; /* 74-7F */ + uint8_t pri_dns_srvr_ip[4];/* 80-83 */ + uint8_t sec_dns_srvr_ip[4];/* 84-87 */ + uint16_t min_eph_port; /* 88-89 */ + uint16_t max_eph_port; /* 8A-8B */ + uint8_t res9[4]; /* 8C-8F */ + uint8_t iscsi_alias[32];/* 90-AF */ + uint8_t res9_1[0x16]; /* B0-C5 */ + uint16_t tgt_portal_grp;/* C6-C7 */ + uint8_t abort_timer; /* C8 */ + uint8_t ipv4_tcp_wsf; /* C9 */ + uint8_t res10[6]; /* CA-CF */ + uint8_t ipv4_sec_ip_addr[4]; /* D0-D3 */ + uint8_t ipv4_dhcp_vid_len; /* D4 */ + uint8_t ipv4_dhcp_vid[11]; /* D5-DF */ + uint8_t res11[20]; /* E0-F3 */ + uint8_t ipv4_dhcp_alt_cid_len; /* F4 */ + uint8_t ipv4_dhcp_alt_cid[11]; /* F5-FF */ + uint8_t iscsi_name[224]; /* 100-1DF */ + uint8_t res12[32]; /* 1E0-1FF */ + uint32_t cookie; /* 200-203 */ + uint16_t ipv6_port; /* 204-205 */ + uint16_t ipv6_opts; /* 206-207 */ + uint16_t ipv6_addtl_opts; /* 208-209 */ + uint16_t ipv6_tcp_opts; /* 20A-20B */ + uint8_t ipv6_tcp_wsf; /* 20C */ + uint16_t ipv6_flow_lbl; /* 20D-20F */ + uint8_t ipv6_gw_addr[16]; /* 210-21F */ + uint16_t ipv6_vlan_tag; /* 220-221 */ + uint8_t ipv6_lnk_lcl_addr_state;/* 222 */ + uint8_t ipv6_addr0_state; /* 223 */ + uint8_t ipv6_addr1_state; /* 224 */ + uint8_t ipv6_gw_state; /* 225 */ + uint8_t ipv6_traffic_class; /* 226 */ + uint8_t ipv6_hop_limit; /* 227 */ + uint8_t ipv6_if_id[8]; /* 228-22F */ + uint8_t ipv6_addr0[16]; /* 230-23F */ + uint8_t ipv6_addr1[16]; /* 240-24F */ + uint32_t ipv6_nd_reach_time; /* 250-253 */ + uint32_t ipv6_nd_rexmit_timer; /* 254-257 */ + uint32_t ipv6_nd_stale_timeout; /* 258-25B */ + uint8_t ipv6_dup_addr_detect_count; /* 25C */ + uint8_t ipv6_cache_id; /* 25D */ + uint8_t res13[18]; /* 25E-26F */ + uint32_t ipv6_gw_advrt_mtu; /* 270-273 */ + uint8_t res14[140]; /* 274-2FF */ +}; + +struct init_fw_ctrl_blk { + struct addr_ctrl_blk pri; + struct addr_ctrl_blk sec; }; /*************************************************************************/ struct dev_db_entry { - uint8_t options; /* 00 */ + uint16_t options; /* 00-01 */ #define DDB_OPT_DISC_SESSION 0x10 #define DDB_OPT_TARGET 0x02 /* device is a target */ - uint8_t control; /* 01 */ - - uint16_t exeThrottle; /* 02-03 */ - uint16_t exeCount; /* 04-05 */ - uint8_t retryCount; /* 06 */ - uint8_t retryDelay; /* 07 */ - uint16_t iSCSIOptions; /* 08-09 */ - - uint16_t TCPOptions; /* 0A-0B */ - - uint16_t IPOptions; /* 0C-0D */ - - uint16_t maxPDUSize; /* 0E-0F */ - uint16_t rcvMarkerInt; /* 10-11 */ - uint16_t sndMarkerInt; /* 12-13 */ - uint16_t iSCSIMaxSndDataSegLen; /* 14-15 */ - uint16_t firstBurstSize; /* 16-17 */ - uint16_t minTime2Wait; /* 18-19 : RA :default_time2wait */ - uint16_t maxTime2Retain; /* 1A-1B */ - uint16_t maxOutstndngR2T; /* 1C-1D */ - uint16_t keepAliveTimeout; /* 1E-1F */ - uint8_t ISID[6]; /* 20-25 big-endian, must be converted + uint16_t exec_throttle; /* 02-03 */ + uint16_t exec_count; /* 04-05 */ + uint16_t res0; /* 06-07 */ + uint16_t iscsi_options; /* 08-09 */ + uint16_t tcp_options; /* 0A-0B */ + uint16_t ip_options; /* 0C-0D */ + uint16_t iscsi_max_rcv_data_seg_len; /* 0E-0F */ + uint32_t res1; /* 10-13 */ + uint16_t iscsi_max_snd_data_seg_len; /* 14-15 */ + uint16_t iscsi_first_burst_len; /* 16-17 */ + uint16_t iscsi_def_time2wait; /* 18-19 */ + uint16_t iscsi_def_time2retain; /* 1A-1B */ + uint16_t iscsi_max_outsnd_r2t; /* 1C-1D */ + uint16_t ka_timeout; /* 1E-1F */ + uint8_t isid[6]; /* 20-25 big-endian, must be converted * to little-endian */ - uint16_t TSID; /* 26-27 */ - uint16_t portNumber; /* 28-29 */ - uint16_t maxBurstSize; /* 2A-2B */ - uint16_t taskMngmntTimeout; /* 2C-2D */ - uint16_t reserved1; /* 2E-2F */ - uint8_t ipAddr[0x10]; /* 30-3F */ - uint8_t iSCSIAlias[0x20]; /* 40-5F */ - uint8_t targetAddr[0x20]; /* 60-7F */ - uint8_t userID[0x20]; /* 80-9F */ - uint8_t password[0x20]; /* A0-BF */ - uint8_t iscsiName[0x100]; /* C0-1BF : xxzzy Make this a + uint16_t tsid; /* 26-27 */ + uint16_t port; /* 28-29 */ + uint16_t iscsi_max_burst_len; /* 2A-2B */ + uint16_t def_timeout; /* 2C-2D */ + uint16_t res2; /* 2E-2F */ + uint8_t ip_addr[0x10]; /* 30-3F */ + uint8_t iscsi_alias[0x20]; /* 40-5F */ + uint8_t tgt_addr[0x20]; /* 60-7F */ + uint16_t mss; /* 80-81 */ + uint16_t res3; /* 82-83 */ + uint16_t lcl_port; /* 84-85 */ + uint8_t ipv4_tos; /* 86 */ + uint16_t ipv6_flow_lbl; /* 87-89 */ + uint8_t res4[0x36]; /* 8A-BF */ + uint8_t iscsi_name[0xE0]; /* C0-19F : xxzzy Make this a * pointer to a string so we * don't have to reserve soooo * much RAM */ - uint16_t ddbLink; /* 1C0-1C1 */ - uint16_t CHAPTableIndex; /* 1C2-1C3 */ - uint16_t TargetPortalGroup; /* 1C4-1C5 */ - uint16_t reserved2[2]; /* 1C6-1C7 */ - uint32_t statSN; /* 1C8-1CB */ - uint32_t expStatSN; /* 1CC-1CF */ - uint16_t reserved3[0x2C]; /* 1D0-1FB */ - uint16_t ddbValidCookie; /* 1FC-1FD */ - uint16_t ddbValidSize; /* 1FE-1FF */ + uint8_t ipv6_addr[0x10];/* 1A0-1AF */ + uint8_t res5[0x10]; /* 1B0-1BF */ + uint16_t ddb_link; /* 1C0-1C1 */ + uint16_t chap_tbl_idx; /* 1C2-1C3 */ + uint16_t tgt_portal_grp; /* 1C4-1C5 */ + uint8_t tcp_xmt_wsf; /* 1C6 */ + uint8_t tcp_rcv_wsf; /* 1C7 */ + uint32_t stat_sn; /* 1C8-1CB */ + uint32_t exp_stat_sn; /* 1CC-1CF */ + uint8_t res6[0x30]; /* 1D0-1FF */ }; /*************************************************************************/ diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index 5b00cb0..a3608e0 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -8,6 +8,9 @@ #ifndef __QLA4x_GBL_H #define __QLA4x_GBL_H +struct iscsi_cls_conn; + +void qla4xxx_hw_reset(struct scsi_qla_host *ha); int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a); int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port); int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb); @@ -58,11 +61,13 @@ int qla4xxx_get_fw_version(struct scsi_q void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha, uint32_t intr_status); int qla4xxx_init_rings(struct scsi_qla_host * ha); -struct srb * qla4xxx_del_from_active_array(struct scsi_qla_host *ha, uint32_t index); +struct srb * qla4xxx_del_from_active_array(struct scsi_qla_host *ha, + uint32_t index); void qla4xxx_srb_compl(struct scsi_qla_host *ha, struct srb *srb); int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host * ha); int qla4xxx_process_ddb_changed(struct scsi_qla_host * ha, uint32_t fw_ddb_index, uint32_t state); +void qla4xxx_dump_buffer(void *b, uint32_t size); extern int ql4xextended_error_logging; extern int ql4xdiscoverywait; diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 6365df2..d8c064c 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -6,6 +6,9 @@ */ #include "ql4_def.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha, uint32_t fw_ddb_index); @@ -300,12 +303,12 @@ static int qla4xxx_init_firmware(struct if (!qla4xxx_fw_ready(ha)) return status; - set_bit(AF_ONLINE, &ha->flags); return qla4xxx_get_firmware_status(ha); } static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha, - uint32_t fw_ddb_index) + uint32_t fw_ddb_index, + uint32_t *new_tgt) { struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; @@ -313,6 +316,7 @@ static struct ddb_entry* qla4xxx_get_ddb int found = 0; uint32_t device_state; + *new_tgt = 0; /* Make sure the dma buffer is valid */ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), @@ -337,7 +341,7 @@ static struct ddb_entry* qla4xxx_get_ddb DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no, __func__, fw_ddb_index)); list_for_each_entry(ddb_entry, &ha->ddb_list, list) { - if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsiName, + if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name, ISCSI_NAME_SIZE) == 0) { found++; break; @@ -348,6 +352,7 @@ static struct ddb_entry* qla4xxx_get_ddb DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating " "new ddb\n", ha->host_no, __func__, fw_ddb_index)); + *new_tgt = 1; ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); } @@ -409,26 +414,26 @@ static int qla4xxx_update_ddb_entry(stru } status = QLA_SUCCESS; - ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->TSID); + ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid); ddb_entry->task_mgmt_timeout = - le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); + le16_to_cpu(fw_ddb_entry->def_timeout); ddb_entry->CmdSn = 0; - ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exeThrottle); + ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle); ddb_entry->default_relogin_timeout = - le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); - ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->minTime2Wait); + le16_to_cpu(fw_ddb_entry->def_timeout); + ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); /* Update index in case it changed */ ddb_entry->fw_ddb_index = fw_ddb_index; ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; - ddb_entry->port = le16_to_cpu(fw_ddb_entry->portNumber); - ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->TargetPortalGroup); - memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsiName[0], + ddb_entry->port = le16_to_cpu(fw_ddb_entry->port); + ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); + memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], min(sizeof(ddb_entry->iscsi_name), - sizeof(fw_ddb_entry->iscsiName))); - memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ipAddr[0], - min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ipAddr))); + sizeof(fw_ddb_entry->iscsi_name))); + memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0], + min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr))); DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n", ha->host_no, __func__, fw_ddb_index, @@ -495,6 +500,7 @@ static int qla4xxx_build_ddb_list(struct uint32_t ddb_state; uint32_t conn_err, err_code; struct ddb_entry *ddb_entry; + uint32_t new_tgt; dev_info(&ha->pdev->dev, "Initializing DDBs ...\n"); for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; @@ -526,8 +532,19 @@ static int qla4xxx_build_ddb_list(struct "completed " "or access denied failure\n", ha->host_no, __func__)); - } else + } else { qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); + if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, + NULL, 0, NULL, &next_fw_ddb_index, + &ddb_state, &conn_err, NULL, NULL) + == QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s:" + "get_ddb_entry %d failed\n", + ha->host_no, + __func__, fw_ddb_index)); + return QLA_ERROR; + } + } } if (ddb_state != DDB_DS_SESSION_ACTIVE) @@ -540,7 +557,7 @@ static int qla4xxx_build_ddb_list(struct ha->host_no, __func__, fw_ddb_index)); /* Add DDB to internal our ddb list. */ - ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); + ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); if (ddb_entry == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " "for device at fw_ddb_index %d\n", @@ -865,21 +882,19 @@ static int qla4xxx_config_nvram(struct s static void qla4x00_pci_config(struct scsi_qla_host *ha) { - uint16_t w, mwi; + uint16_t w; dev_info(&ha->pdev->dev, "Configuring PCI space...\n"); pci_set_master(ha->pdev); - mwi = 0; - if (pci_set_mwi(ha->pdev)) - mwi = PCI_COMMAND_INVALIDATE; + pci_set_mwi(ha->pdev); /* * We want to respect framework's setting of PCI configuration space * command register and also want to make sure that all bits of * interest to us are properly set in command register. */ pci_read_config_word(ha->pdev, PCI_COMMAND, &w); - w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); + w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; w &= ~PCI_COMMAND_INTX_DISABLE; pci_write_config_word(ha->pdev, PCI_COMMAND, w); } @@ -911,6 +926,9 @@ static int qla4xxx_start_firmware_from_f writel(set_rmask(NVR_WRITE_ENABLE), &ha->reg->u1.isp4022.nvram); + writel(2, &ha->reg->mailbox[6]); + readl(&ha->reg->mailbox[6]); + writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -958,25 +976,25 @@ static int qla4xxx_start_firmware_from_f return status; } -int ql4xxx_lock_drvr_wait(struct scsi_qla_host *ha) +int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) { -#define QL4_LOCK_DRVR_WAIT 30 +#define QL4_LOCK_DRVR_WAIT 60 #define QL4_LOCK_DRVR_SLEEP 1 int drvr_wait = QL4_LOCK_DRVR_WAIT; while (drvr_wait) { - if (ql4xxx_lock_drvr(ha) == 0) { + if (ql4xxx_lock_drvr(a) == 0) { ssleep(QL4_LOCK_DRVR_SLEEP); if (drvr_wait) { DEBUG2(printk("scsi%ld: %s: Waiting for " - "Global Init Semaphore(%d)...n", - ha->host_no, + "Global Init Semaphore(%d)...\n", + a->host_no, __func__, drvr_wait)); } drvr_wait -= QL4_LOCK_DRVR_SLEEP; } else { DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " - "acquired.n", ha->host_no, __func__)); + "acquired\n", a->host_no, __func__)); return QLA_SUCCESS; } } @@ -1142,8 +1160,10 @@ int qla4xxx_initialize_adapter(struct sc * the ddb_list and wait for DHCP lease acquired aen to come in * followed by 0x8014 aen" to trigger the tgt discovery process. */ - if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) + if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS){ + set_bit(AF_ONLINE, &ha->flags); return status; + } /* Skip device discovery if ip and subnet is zero */ if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 || @@ -1177,6 +1197,7 @@ int qla4xxx_initialize_adapter(struct sc ha->host_no)); } + set_bit(AF_ONLINE, &ha->flags); exit_init_hba: return status; @@ -1193,9 +1214,10 @@ static void qla4xxx_add_device_dynamical uint32_t fw_ddb_index) { struct ddb_entry * ddb_entry; + uint32_t new_tgt; /* First allocate a device structure */ - ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); + ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt); if (ddb_entry == NULL) { DEBUG2(printk(KERN_WARNING "scsi%ld: Unable to allocate memory to add " @@ -1203,6 +1225,18 @@ static void qla4xxx_add_device_dynamical return; } + if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) { + /* Target has been bound to a new fw_ddb_index */ + qla4xxx_free_ddb(ha, ddb_entry); + ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); + if (ddb_entry == NULL) { + DEBUG2(printk(KERN_WARNING + "scsi%ld: Unable to allocate memory" + " to add fw_ddb_index %d\n", + ha->host_no, fw_ddb_index)); + return; + } + } if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == QLA_ERROR) { ha->fw_ddb_index_map[fw_ddb_index] = diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c index a216a17..5006ecb 100644 --- a/drivers/scsi/qla4xxx/ql4_iocb.c +++ b/drivers/scsi/qla4xxx/ql4_iocb.c @@ -6,6 +6,10 @@ */ #include "ql4_def.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" + #include @@ -141,11 +145,13 @@ static void qla4xxx_build_scsi_iocbs(str uint16_t avail_dsds; struct data_seg_a64 *cur_dsd; struct scsi_cmnd *cmd; + struct scatterlist *sg; + int i; cmd = srb->cmd; ha = srb->ha; - if (cmd->request_bufflen == 0 || cmd->sc_data_direction == DMA_NONE) { + if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { /* No data being transferred */ cmd_entry->ttlByteCnt = __constant_cpu_to_le32(0); return; @@ -154,40 +160,27 @@ static void qla4xxx_build_scsi_iocbs(str avail_dsds = COMMAND_SEG; cur_dsd = (struct data_seg_a64 *) & (cmd_entry->dataseg[0]); - /* Load data segments */ - if (cmd->use_sg) { - struct scatterlist *cur_seg; - struct scatterlist *end_seg; - - cur_seg = (struct scatterlist *)cmd->request_buffer; - end_seg = cur_seg + tot_dsds; - while (cur_seg < end_seg) { - dma_addr_t sle_dma; - - /* Allocate additional continuation packets? */ - if (avail_dsds == 0) { - struct continuation_t1_entry *cont_entry; - - cont_entry = qla4xxx_alloc_cont_entry(ha); - cur_dsd = - (struct data_seg_a64 *) - &cont_entry->dataseg[0]; - avail_dsds = CONTINUE_SEG; - } - - sle_dma = sg_dma_address(cur_seg); - cur_dsd->base.addrLow = cpu_to_le32(LSDW(sle_dma)); - cur_dsd->base.addrHigh = cpu_to_le32(MSDW(sle_dma)); - cur_dsd->count = cpu_to_le32(sg_dma_len(cur_seg)); - avail_dsds--; - - cur_dsd++; - cur_seg++; + scsi_for_each_sg(cmd, sg, tot_dsds, i) { + dma_addr_t sle_dma; + + /* Allocate additional continuation packets? */ + if (avail_dsds == 0) { + struct continuation_t1_entry *cont_entry; + + cont_entry = qla4xxx_alloc_cont_entry(ha); + cur_dsd = + (struct data_seg_a64 *) + &cont_entry->dataseg[0]; + avail_dsds = CONTINUE_SEG; } - } else { - cur_dsd->base.addrLow = cpu_to_le32(LSDW(srb->dma_handle)); - cur_dsd->base.addrHigh = cpu_to_le32(MSDW(srb->dma_handle)); - cur_dsd->count = cpu_to_le32(cmd->request_bufflen); + + sle_dma = sg_dma_address(sg); + cur_dsd->base.addrLow = cpu_to_le32(LSDW(sle_dma)); + cur_dsd->base.addrHigh = cpu_to_le32(MSDW(sle_dma)); + cur_dsd->count = cpu_to_le32(sg_dma_len(sg)); + avail_dsds--; + + cur_dsd++; } } @@ -204,8 +197,8 @@ int qla4xxx_send_command_to_isp(struct s struct scsi_cmnd *cmd = srb->cmd; struct ddb_entry *ddb_entry; struct command_t3_entry *cmd_entry; - struct scatterlist *sg = NULL; + int nseg; uint16_t tot_dsds; uint16_t req_cnt; @@ -233,24 +226,11 @@ int qla4xxx_send_command_to_isp(struct s index = (uint32_t)cmd->request->tag; /* Calculate the number of request entries needed. */ - if (cmd->use_sg) { - sg = (struct scatterlist *)cmd->request_buffer; - tot_dsds = pci_map_sg(ha->pdev, sg, cmd->use_sg, - cmd->sc_data_direction); - if (tot_dsds == 0) - goto queuing_error; - } else if (cmd->request_bufflen) { - dma_addr_t req_dma; - - req_dma = pci_map_single(ha->pdev, cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - if (dma_mapping_error(req_dma)) - goto queuing_error; - - srb->dma_handle = req_dma; - tot_dsds = 1; - } + nseg = scsi_dma_map(cmd); + if (nseg < 0) + goto queuing_error; + tot_dsds = nseg; + req_cnt = qla4xxx_calc_request_entries(tot_dsds); if (ha->req_q_count < (req_cnt + 2)) { @@ -279,7 +259,7 @@ int qla4xxx_send_command_to_isp(struct s int_to_scsilun(cmd->device->lun, &cmd_entry->lun); cmd_entry->cmdSeqNum = cpu_to_le32(ddb_entry->CmdSn); - cmd_entry->ttlByteCnt = cpu_to_le32(cmd->request_bufflen); + cmd_entry->ttlByteCnt = cpu_to_le32(scsi_bufflen(cmd)); memcpy(cmd_entry->cdb, cmd->cmnd, cmd->cmd_len); cmd_entry->dataSegCnt = cpu_to_le16(tot_dsds); cmd_entry->hdr.entryCount = req_cnt; @@ -289,13 +269,13 @@ int qla4xxx_send_command_to_isp(struct s * transferred, as the data direction bit is sometimed filled * in when there is no data to be transferred */ cmd_entry->control_flags = CF_NO_DATA; - if (cmd->request_bufflen) { + if (scsi_bufflen(cmd)) { if (cmd->sc_data_direction == DMA_TO_DEVICE) cmd_entry->control_flags = CF_WRITE; else if (cmd->sc_data_direction == DMA_FROM_DEVICE) cmd_entry->control_flags = CF_READ; - ha->bytes_xfered += cmd->request_bufflen; + ha->bytes_xfered += scsi_bufflen(cmd); if (ha->bytes_xfered & ~0xFFFFF){ ha->total_mbytes_xferred += ha->bytes_xfered >> 20; ha->bytes_xfered &= 0xFFFFF; @@ -359,14 +339,9 @@ int qla4xxx_send_command_to_isp(struct s return QLA_SUCCESS; queuing_error: + if (tot_dsds) + scsi_dma_unmap(cmd); - if (cmd->use_sg && tot_dsds) { - sg = (struct scatterlist *) cmd->request_buffer; - pci_unmap_sg(ha->pdev, sg, cmd->use_sg, - cmd->sc_data_direction); - } else if (tot_dsds) - pci_unmap_single(ha->pdev, srb->dma_handle, - cmd->request_bufflen, cmd->sc_data_direction); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_ERROR; diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 35b9e36..b47bd85 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -6,6 +6,9 @@ */ #include "ql4_def.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" /** * qla2x00_process_completed_request() - Process a Fast Post response. @@ -92,7 +95,7 @@ static void qla4xxx_status_entry(struct if (sts_entry->iscsiFlags & (ISCSI_FLAG_RESIDUAL_OVER|ISCSI_FLAG_RESIDUAL_UNDER)) - cmd->resid = residual; + scsi_set_resid(cmd, residual); cmd->result = DID_OK << 16 | scsi_status; @@ -176,14 +179,14 @@ static void qla4xxx_status_entry(struct * Firmware detected a SCSI transport underrun * condition */ - cmd->resid = residual; + scsi_set_resid(cmd, residual); DEBUG2(printk("scsi%ld:%d:%d:%d: %s: UNDERRUN status " "detected, xferlen = 0x%x, residual = " "0x%x\n", ha->host_no, cmd->device->channel, cmd->device->id, cmd->device->lun, __func__, - cmd->request_bufflen, + scsi_bufflen(cmd), residual)); } @@ -227,7 +230,7 @@ static void qla4xxx_status_entry(struct if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) == 0) { cmd->result = DID_BUS_BUSY << 16; - } else if ((cmd->request_bufflen - residual) < + } else if ((scsi_bufflen(cmd) - residual) < cmd->underflow) { /* * Handle mid-layer underflow??? @@ -248,7 +251,7 @@ static void qla4xxx_status_entry(struct cmd->device->channel, cmd->device->id, cmd->device->lun, __func__, - cmd->request_bufflen, residual)); + scsi_bufflen(cmd), residual)); cmd->result = DID_ERROR << 16; } else { @@ -417,6 +420,7 @@ static void qla4xxx_isr_decode_mailbox(s uint32_t mbox_status) { int i; + uint32_t mbox_stat2, mbox_stat3; if ((mbox_status == MBOX_STS_BUSY) || (mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) || @@ -437,6 +441,12 @@ static void qla4xxx_isr_decode_mailbox(s } else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) { /* Immediately process the AENs that don't require much work. * Only queue the database_changed AENs */ + if (ha->aen_log.count < MAX_AEN_ENTRIES) { + for (i = 0; i < MBOX_AEN_REG_COUNT; i++) + ha->aen_log.entry[ha->aen_log.count].mbox_sts[i] = + readl(&ha->reg->mailbox[i]); + ha->aen_log.count++; + } switch (mbox_status) { case MBOX_ASTS_SYSTEM_ERROR: /* Log Mailbox registers */ @@ -493,6 +503,16 @@ static void qla4xxx_isr_decode_mailbox(s mbox_status)); break; + case MBOX_ASTS_IP_ADDR_STATE_CHANGED: + mbox_stat2 = readl(&ha->reg->mailbox[2]); + mbox_stat3 = readl(&ha->reg->mailbox[3]); + + if ((mbox_stat3 == 5) && (mbox_stat2 == 3)) + set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); + else if ((mbox_stat3 == 2) && (mbox_stat2 == 5)) + set_bit(DPC_RESET_HA, &ha->dpc_flags); + break; + case MBOX_ASTS_MAC_ADDRESS_CHANGED: case MBOX_ASTS_DNS: /* No action */ @@ -518,11 +538,6 @@ static void qla4xxx_isr_decode_mailbox(s /* Queue AEN information and process it in the DPC * routine */ if (ha->aen_q_count > 0) { - /* advance pointer */ - if (ha->aen_in == (MAX_AEN_ENTRIES - 1)) - ha->aen_in = 0; - else - ha->aen_in++; /* decrement available counter */ ha->aen_q_count--; @@ -542,6 +557,10 @@ static void qla4xxx_isr_decode_mailbox(s ha->aen_q[ha->aen_in].mbox_sts[2], ha->aen_q[ha->aen_in].mbox_sts[3], ha->aen_q[ha->aen_in]. mbox_sts[4])); + /* advance pointer */ + ha->aen_in++; + if (ha->aen_in == MAX_AEN_ENTRIES) + ha->aen_in = 0; /* The DPC routine will process the aen */ set_bit(DPC_AEN, &ha->dpc_flags); @@ -724,25 +743,24 @@ void qla4xxx_process_aen(struct scsi_qla spin_lock_irqsave(&ha->hardware_lock, flags); while (ha->aen_out != ha->aen_in) { - /* Advance pointers for next entry */ - if (ha->aen_out == (MAX_AEN_ENTRIES - 1)) - ha->aen_out = 0; - else - ha->aen_out++; - - ha->aen_q_count++; aen = &ha->aen_q[ha->aen_out]; - /* copy aen information to local structure */ for (i = 0; i < MBOX_AEN_REG_COUNT; i++) mbox_sts[i] = aen->mbox_sts[i]; + ha->aen_q_count++; + ha->aen_out++; + + if (ha->aen_out == MAX_AEN_ENTRIES) + ha->aen_out = 0; + spin_unlock_irqrestore(&ha->hardware_lock, flags); - DEBUG(printk("scsi%ld: AEN[%d] %04x, index [%d] state=%04x " - "mod=%x conerr=%08x \n", ha->host_no, ha->aen_out, - mbox_sts[0], mbox_sts[2], mbox_sts[3], - mbox_sts[1], mbox_sts[4])); + DEBUG2(printk("qla4xxx(%ld): AEN[%d]=0x%08x, mbx1=0x%08x mbx2=0x%08x" + " mbx3=0x%08x mbx4=0x%08x\n", ha->host_no, + (ha->aen_out ? (ha->aen_out-1): (MAX_AEN_ENTRIES-1)), + mbox_sts[0], mbox_sts[1], mbox_sts[2], + mbox_sts[3], mbox_sts[4])); switch (mbox_sts[0]) { case MBOX_ASTS_DATABASE_CHANGED: @@ -792,6 +810,5 @@ void qla4xxx_process_aen(struct scsi_qla spin_lock_irqsave(&ha->hardware_lock, flags); } spin_unlock_irqrestore(&ha->hardware_lock, flags); - } diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index f116ff9..35cd73c 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -6,6 +6,9 @@ */ #include "ql4_def.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" /** @@ -169,84 +172,6 @@ mbox_exit: return status; } - -#if 0 - -/** - * qla4xxx_issue_iocb - issue mailbox iocb command - * @ha: adapter state pointer. - * @buffer: buffer pointer. - * @phys_addr: physical address of buffer. - * @size: size of buffer. - * - * Issues iocbs via mailbox commands. - * TARGET_QUEUE_LOCK must be released. - * ADAPTER_STATE_LOCK must be released. - **/ -int -qla4xxx_issue_iocb(struct scsi_qla_host * ha, void *buffer, - dma_addr_t phys_addr, size_t size) -{ - uint32_t mbox_cmd[MBOX_REG_COUNT]; - uint32_t mbox_sts[MBOX_REG_COUNT]; - int status; - - memset(&mbox_cmd, 0, sizeof(mbox_cmd)); - memset(&mbox_sts, 0, sizeof(mbox_sts)); - mbox_cmd[0] = MBOX_CMD_EXECUTE_IOCB_A64; - mbox_cmd[1] = 0; - mbox_cmd[2] = LSDW(phys_addr); - mbox_cmd[3] = MSDW(phys_addr); - status = qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); - return status; -} - -int qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha, - uint16_t fw_ddb_index, - uint16_t connection_id, - uint16_t option) -{ - uint32_t mbox_cmd[MBOX_REG_COUNT]; - uint32_t mbox_sts[MBOX_REG_COUNT]; - - memset(&mbox_cmd, 0, sizeof(mbox_cmd)); - memset(&mbox_sts, 0, sizeof(mbox_sts)); - mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT; - mbox_cmd[1] = fw_ddb_index; - mbox_cmd[2] = connection_id; - mbox_cmd[3] = LOGOUT_OPTION_RELOGIN; - if (qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]) != - QLA_SUCCESS) { - DEBUG2(printk("scsi%ld: %s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT " - "option %04x failed sts %04X %04X", - ha->host_no, __func__, - option, mbox_sts[0], mbox_sts[1])); - if (mbox_sts[0] == 0x4005) - DEBUG2(printk("%s reason %04X\n", __func__, - mbox_sts[1])); - } - return QLA_SUCCESS; -} - -int qla4xxx_clear_database_entry(struct scsi_qla_host * ha, - uint16_t fw_ddb_index) -{ - uint32_t mbox_cmd[MBOX_REG_COUNT]; - uint32_t mbox_sts[MBOX_REG_COUNT]; - - memset(&mbox_cmd, 0, sizeof(mbox_cmd)); - memset(&mbox_sts, 0, sizeof(mbox_sts)); - mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY; - mbox_cmd[1] = fw_ddb_index; - if (qla4xxx_mailbox_command(ha, 2, 5, &mbox_cmd[0], &mbox_sts[0]) != - QLA_SUCCESS) - return QLA_ERROR; - - return QLA_SUCCESS; -} - -#endif /* 0 */ - /** * qla4xxx_initialize_fw_cb - initializes firmware control block. * @ha: Pointer to host adapter structure. @@ -272,10 +197,13 @@ int qla4xxx_initialize_fw_cb(struct scsi /* Get Initialize Firmware Control Block. */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; mbox_cmd[2] = LSDW(init_fw_cb_dma); mbox_cmd[3] = MSDW(init_fw_cb_dma); - if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + mbox_cmd[4] = sizeof(struct init_fw_ctrl_blk); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), @@ -287,51 +215,56 @@ int qla4xxx_initialize_fw_cb(struct scsi qla4xxx_init_rings(ha); /* Fill in the request and response queue information. */ - init_fw_cb->ReqQConsumerIndex = cpu_to_le16(ha->request_out); - init_fw_cb->ComplQProducerIndex = cpu_to_le16(ha->response_in); - init_fw_cb->ReqQLen = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH); - init_fw_cb->ComplQLen = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH); - init_fw_cb->ReqQAddrLo = cpu_to_le32(LSDW(ha->request_dma)); - init_fw_cb->ReqQAddrHi = cpu_to_le32(MSDW(ha->request_dma)); - init_fw_cb->ComplQAddrLo = cpu_to_le32(LSDW(ha->response_dma)); - init_fw_cb->ComplQAddrHi = cpu_to_le32(MSDW(ha->response_dma)); - init_fw_cb->ShadowRegBufAddrLo = + init_fw_cb->pri.rqq_consumer_idx = cpu_to_le16(ha->request_out); + init_fw_cb->pri.compq_producer_idx = cpu_to_le16(ha->response_in); + init_fw_cb->pri.rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH); + init_fw_cb->pri.compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH); + init_fw_cb->pri.rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma)); + init_fw_cb->pri.rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma)); + init_fw_cb->pri.compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma)); + init_fw_cb->pri.compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma)); + init_fw_cb->pri.shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma)); - init_fw_cb->ShadowRegBufAddrHi = + init_fw_cb->pri.shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma)); /* Set up required options. */ - init_fw_cb->FwOptions |= + init_fw_cb->pri.fw_options |= __constant_cpu_to_le16(FWOPT_SESSION_MODE | FWOPT_INITIATOR_MODE); - init_fw_cb->FwOptions &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); + init_fw_cb->pri.fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); /* Save some info in adapter structure. */ - ha->firmware_options = le16_to_cpu(init_fw_cb->FwOptions); - ha->tcp_options = le16_to_cpu(init_fw_cb->TCPOptions); - ha->heartbeat_interval = init_fw_cb->HeartbeatInterval; - memcpy(ha->ip_address, init_fw_cb->IPAddr, - min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); - memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, - min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); - memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, - min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); - memcpy(ha->name_string, init_fw_cb->iSCSINameString, + ha->firmware_options = le16_to_cpu(init_fw_cb->pri.fw_options); + ha->tcp_options = le16_to_cpu(init_fw_cb->pri.ipv4_tcp_opts); + ha->heartbeat_interval = init_fw_cb->pri.hb_interval; + memcpy(ha->ip_address, init_fw_cb->pri.ipv4_addr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->pri.ipv4_addr))); + memcpy(ha->subnet_mask, init_fw_cb->pri.ipv4_subnet, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->pri.ipv4_subnet))); + memcpy(ha->gateway, init_fw_cb->pri.ipv4_gw_addr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->pri.ipv4_gw_addr))); + memcpy(ha->name_string, init_fw_cb->pri.iscsi_name, min(sizeof(ha->name_string), - sizeof(init_fw_cb->iSCSINameString))); - memcpy(ha->alias, init_fw_cb->Alias, - min(sizeof(ha->alias), sizeof(init_fw_cb->Alias))); + sizeof(init_fw_cb->pri.iscsi_name))); + /*memcpy(ha->alias, init_fw_cb->Alias, + min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/ /* Save Command Line Paramater info */ - ha->port_down_retry_count = le16_to_cpu(init_fw_cb->KeepAliveTimeout); + ha->port_down_retry_count = le16_to_cpu(init_fw_cb->pri.conn_ka_timeout); ha->discovery_wait = ql4xdiscoverywait; /* Send Initialize Firmware Control Block. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE; mbox_cmd[1] = 0; mbox_cmd[2] = LSDW(init_fw_cb_dma); mbox_cmd[3] = MSDW(init_fw_cb_dma); - if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) == + mbox_cmd[4] = sizeof(struct init_fw_ctrl_blk); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) == QLA_SUCCESS) status = QLA_SUCCESS; else { @@ -368,12 +301,14 @@ int qla4xxx_get_dhcp_ip_address(struct s /* Get Initialize Firmware Control Block. */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk)); mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; mbox_cmd[2] = LSDW(init_fw_cb_dma); mbox_cmd[3] = MSDW(init_fw_cb_dma); + mbox_cmd[4] = sizeof(struct init_fw_ctrl_blk); - if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n", ha->host_no, __func__)); @@ -384,12 +319,12 @@ int qla4xxx_get_dhcp_ip_address(struct s } /* Save IP Address. */ - memcpy(ha->ip_address, init_fw_cb->IPAddr, - min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); - memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, - min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); - memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, - min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); + memcpy(ha->ip_address, init_fw_cb->pri.ipv4_addr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->pri.ipv4_addr))); + memcpy(ha->subnet_mask, init_fw_cb->pri.ipv4_subnet, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->pri.ipv4_subnet))); + memcpy(ha->gateway, init_fw_cb->pri.ipv4_gw_addr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->pri.ipv4_gw_addr))); dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), init_fw_cb, init_fw_cb_dma); @@ -409,8 +344,10 @@ int qla4xxx_get_firmware_state(struct sc /* Get firmware version */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATE; - if (qla4xxx_mailbox_command(ha, 1, 4, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ " "status %04X\n", ha->host_no, __func__, @@ -438,8 +375,10 @@ int qla4xxx_get_firmware_status(struct s /* Get firmware version */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS; - if (qla4xxx_mailbox_command(ha, 1, 3, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ " "status %04X\n", ha->host_no, __func__, @@ -491,11 +430,14 @@ int qla4xxx_get_fwddb_entry(struct scsi_ } memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY; mbox_cmd[1] = (uint32_t) fw_ddb_index; mbox_cmd[2] = LSDW(fw_ddb_entry_dma); mbox_cmd[3] = MSDW(fw_ddb_entry_dma); - if (qla4xxx_mailbox_command(ha, 4, 7, &mbox_cmd[0], &mbox_sts[0]) == + mbox_cmd[4] = sizeof(struct dev_db_entry); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) == QLA_ERROR) { DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed" " with status 0x%04X\n", ha->host_no, __func__, @@ -512,11 +454,11 @@ int qla4xxx_get_fwddb_entry(struct scsi_ dev_info(&ha->pdev->dev, "DDB[%d] MB0 %04x Tot %d Next %d " "State %04x ConnErr %08x %d.%d.%d.%d:%04d \"%s\"\n", fw_ddb_index, mbox_sts[0], mbox_sts[2], mbox_sts[3], - mbox_sts[4], mbox_sts[5], fw_ddb_entry->ipAddr[0], - fw_ddb_entry->ipAddr[1], fw_ddb_entry->ipAddr[2], - fw_ddb_entry->ipAddr[3], - le16_to_cpu(fw_ddb_entry->portNumber), - fw_ddb_entry->iscsiName); + mbox_sts[4], mbox_sts[5], fw_ddb_entry->ip_addr[0], + fw_ddb_entry->ip_addr[1], fw_ddb_entry->ip_addr[2], + fw_ddb_entry->ip_addr[3], + le16_to_cpu(fw_ddb_entry->port), + fw_ddb_entry->iscsi_name); } if (num_valid_ddb_entries) *num_valid_ddb_entries = mbox_sts[2]; @@ -571,35 +513,10 @@ int qla4xxx_set_ddb_entry(struct scsi_ql mbox_cmd[1] = (uint32_t) fw_ddb_index; mbox_cmd[2] = LSDW(fw_ddb_entry_dma); mbox_cmd[3] = MSDW(fw_ddb_entry_dma); - return qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); -} + mbox_cmd[4] = sizeof(struct dev_db_entry); -#if 0 -int qla4xxx_conn_open_session_login(struct scsi_qla_host * ha, - uint16_t fw_ddb_index) -{ - int status = QLA_ERROR; - uint32_t mbox_cmd[MBOX_REG_COUNT]; - uint32_t mbox_sts[MBOX_REG_COUNT]; - - /* Do not wait for completion. The firmware will send us an - * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. - */ - memset(&mbox_cmd, 0, sizeof(mbox_cmd)); - memset(&mbox_sts, 0, sizeof(mbox_sts)); - mbox_cmd[0] = MBOX_CMD_CONN_OPEN_SESS_LOGIN; - mbox_cmd[1] = (uint32_t) fw_ddb_index; - mbox_cmd[2] = 0; - mbox_cmd[3] = 0; - mbox_cmd[4] = 0; - status = qla4xxx_mailbox_command(ha, 4, 0, &mbox_cmd[0], &mbox_sts[0]); - DEBUG2(printk("%s fw_ddb_index=%d status=%d mbx0_1=0x%x :0x%x\n", - __func__, fw_ddb_index, status, mbox_sts[0], - mbox_sts[1]);) - - return status; + return qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]); } -#endif /* 0 */ /** * qla4xxx_get_crash_record - retrieves crash record. @@ -614,12 +531,14 @@ void qla4xxx_get_crash_record(struct scs struct crash_record *crash_record = NULL; dma_addr_t crash_record_dma = 0; uint32_t crash_record_size = 0; + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_cmd)); /* Get size of crash record. */ mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; - if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n", ha->host_no, __func__)); @@ -639,11 +558,15 @@ void qla4xxx_get_crash_record(struct scs goto exit_get_crash_record; /* Get Crash Record. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; mbox_cmd[2] = LSDW(crash_record_dma); mbox_cmd[3] = MSDW(crash_record_dma); mbox_cmd[4] = crash_record_size; - if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) goto exit_get_crash_record; @@ -655,7 +578,6 @@ exit_get_crash_record: crash_record, crash_record_dma); } -#if 0 /** * qla4xxx_get_conn_event_log - retrieves connection event log * @ha: Pointer to host adapter structure. @@ -678,7 +600,8 @@ void qla4xxx_get_conn_event_log(struct s /* Get size of crash record. */ mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; - if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) goto exit_get_event_log; @@ -693,10 +616,14 @@ void qla4xxx_get_conn_event_log(struct s goto exit_get_event_log; /* Get Crash Record. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; mbox_cmd[2] = LSDW(event_log_dma); mbox_cmd[3] = MSDW(event_log_dma); - if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event " "log!\n", ha->host_no, __func__)); @@ -745,7 +672,6 @@ exit_get_event_log: dma_free_coherent(&ha->pdev->dev, event_log_size, event_log, event_log_dma); } -#endif /* 0 */ /** * qla4xxx_reset_lun - issues LUN Reset @@ -773,11 +699,13 @@ int qla4xxx_reset_lun(struct scsi_qla_ho */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_LUN_RESET; mbox_cmd[1] = ddb_entry->fw_ddb_index; mbox_cmd[2] = lun << 8; mbox_cmd[5] = 0x01; /* Immediate Command Enable */ - qla4xxx_mailbox_command(ha, 6, 1, &mbox_cmd[0], &mbox_sts[0]); + + qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]); if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE && mbox_sts[0] != MBOX_STS_COMMAND_ERROR) status = QLA_ERROR; @@ -794,12 +722,14 @@ int qla4xxx_get_flash(struct scsi_qla_ho memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_READ_FLASH; mbox_cmd[1] = LSDW(dma_addr); mbox_cmd[2] = MSDW(dma_addr); mbox_cmd[3] = offset; mbox_cmd[4] = len; - if (qla4xxx_mailbox_command(ha, 5, 2, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ " "status %04X %04X, offset %08x, len %08x\n", ha->host_no, @@ -825,8 +755,10 @@ int qla4xxx_get_fw_version(struct scsi_q /* Get firmware version. */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_ABOUT_FW; - if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: MBOX_CMD_ABOUT_FW failed w/ " "status %04X\n", ha->host_no, __func__, mbox_sts[0])); @@ -855,7 +787,7 @@ static int qla4xxx_get_default_ddb(struc mbox_cmd[2] = LSDW(dma_addr); mbox_cmd[3] = MSDW(dma_addr); - if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: failed status %04X\n", ha->host_no, __func__, mbox_sts[0])); @@ -875,7 +807,7 @@ static int qla4xxx_req_ddb_entry(struct mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY; mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES; - if (qla4xxx_mailbox_command(ha, 2, 3, &mbox_cmd[0], &mbox_sts[0]) != + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) { *ddb_index = mbox_sts[2]; @@ -918,23 +850,23 @@ int qla4xxx_send_tgts(struct scsi_qla_ho if (ret_val != QLA_SUCCESS) goto qla4xxx_send_tgts_exit; - memset((void *)fw_ddb_entry->iSCSIAlias, 0, - sizeof(fw_ddb_entry->iSCSIAlias)); + memset(fw_ddb_entry->iscsi_alias, 0, + sizeof(fw_ddb_entry->iscsi_alias)); - memset((void *)fw_ddb_entry->iscsiName, 0, - sizeof(fw_ddb_entry->iscsiName)); + memset(fw_ddb_entry->iscsi_name, 0, + sizeof(fw_ddb_entry->iscsi_name)); - memset((void *)fw_ddb_entry->ipAddr, 0, sizeof(fw_ddb_entry->ipAddr)); - memset((void *)fw_ddb_entry->targetAddr, 0, - sizeof(fw_ddb_entry->targetAddr)); + memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr)); + memset(fw_ddb_entry->tgt_addr, 0, + sizeof(fw_ddb_entry->tgt_addr)); fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET); - fw_ddb_entry->portNumber = cpu_to_le16(ntohs(port)); + fw_ddb_entry->port = cpu_to_le16(ntohs(port)); - fw_ddb_entry->ipAddr[0] = *ip; - fw_ddb_entry->ipAddr[1] = *(ip + 1); - fw_ddb_entry->ipAddr[2] = *(ip + 2); - fw_ddb_entry->ipAddr[3] = *(ip + 3); + fw_ddb_entry->ip_addr[0] = *ip; + fw_ddb_entry->ip_addr[1] = *(ip + 1); + fw_ddb_entry->ip_addr[2] = *(ip + 2); + fw_ddb_entry->ip_addr[3] = *(ip + 3); ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma); diff --git a/drivers/scsi/qla4xxx/ql4_nvram.c b/drivers/scsi/qla4xxx/ql4_nvram.c index 58afd13..7fe0482 100644 --- a/drivers/scsi/qla4xxx/ql4_nvram.c +++ b/drivers/scsi/qla4xxx/ql4_nvram.c @@ -6,6 +6,9 @@ */ #include "ql4_def.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" static inline void eeprom_cmd(uint32_t cmd, struct scsi_qla_host *ha) { diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index da21f5f..e09fc42 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -10,6 +10,10 @@ #include #include #include "ql4_def.h" +#include "ql4_version.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" /* * Driver version @@ -369,14 +373,7 @@ static void qla4xxx_srb_free_dma(struct struct scsi_cmnd *cmd = srb->cmd; if (srb->flags & SRB_DMA_VALID) { - if (cmd->use_sg) { - pci_unmap_sg(ha->pdev, cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - } else if (cmd->request_bufflen) { - pci_unmap_single(ha->pdev, srb->dma_handle, - cmd->request_bufflen, - cmd->sc_data_direction); - } + scsi_dma_unmap(cmd); srb->flags &= ~SRB_DMA_VALID; } cmd->SCp.ptr = NULL; @@ -711,7 +708,7 @@ static int qla4xxx_cmd_wait(struct scsi_ return stat; } -static void qla4xxx_hw_reset(struct scsi_qla_host *ha) +void qla4xxx_hw_reset(struct scsi_qla_host *ha) { uint32_t ctrl_status; unsigned long flags = 0; @@ -1081,13 +1078,13 @@ static void qla4xxx_free_adapter(struct if (ha->timer_active) qla4xxx_stop_timer(ha); - /* free extra memory */ - qla4xxx_mem_free(ha); - /* Detach interrupts */ if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) free_irq(ha->pdev->irq, ha); + /* free extra memory */ + qla4xxx_mem_free(ha); + pci_disable_device(ha->pdev); } @@ -1332,6 +1329,11 @@ static void __devexit qla4xxx_remove_ada ha = pci_get_drvdata(pdev); + qla4xxx_disable_intrs(ha); + + while (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) + ssleep(1); + /* remove devs from iscsi_sessions to scsi_devices */ qla4xxx_free_ddb_list(ha); diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h index e5183a6..2149069 100644 --- a/drivers/scsi/qla4xxx/ql4_version.h +++ b/drivers/scsi/qla4xxx/ql4_version.h @@ -5,4 +5,5 @@ * See LICENSE.qla4xxx for copyright and licensing details. */ -#define QLA4XXX_DRIVER_VERSION "5.00.07-k1" +#define QLA4XXX_DRIVER_VERSION "5.01.00-k7" + diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c index 2e7db18..2bfbf26 100644 --- a/drivers/scsi/qlogicfas408.c +++ b/drivers/scsi/qlogicfas408.c @@ -265,8 +265,6 @@ static unsigned int ql_pcmd(struct scsi_ unsigned int message; /* scsi returned message */ unsigned int phase; /* recorded scsi phase */ unsigned int reqlen; /* total length of transfer */ - struct scatterlist *sglist; /* scatter-gather list pointer */ - unsigned int sgcount; /* sg counter */ char *buf; struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); int qbase = priv->qbase; @@ -301,9 +299,10 @@ static unsigned int ql_pcmd(struct scsi_ if (inb(qbase + 7) & 0x1f) /* if some bytes in fifo */ outb(1, qbase + 3); /* clear fifo */ /* note that request_bufflen is the total xfer size when sg is used */ - reqlen = cmd->request_bufflen; + reqlen = scsi_bufflen(cmd); /* note that it won't work if transfers > 16M are requested */ if (reqlen && !((phase = inb(qbase + 4)) & 6)) { /* data phase */ + struct scatterlist *sg; rtrc(2) outb(reqlen, qbase); /* low-mid xfer cnt */ outb(reqlen >> 8, qbase + 1); /* low-mid xfer cnt */ @@ -311,23 +310,16 @@ static unsigned int ql_pcmd(struct scsi_ outb(0x90, qbase + 3); /* command do xfer */ /* PIO pseudo DMA to buffer or sglist */ REG1; - if (!cmd->use_sg) - ql_pdma(priv, phase, cmd->request_buffer, - cmd->request_bufflen); - else { - sgcount = cmd->use_sg; - sglist = cmd->request_buffer; - while (sgcount--) { - if (priv->qabort) { - REG0; - return ((priv->qabort == 1 ? - DID_ABORT : DID_RESET) << 16); - } - buf = page_address(sglist->page) + sglist->offset; - if (ql_pdma(priv, phase, buf, sglist->length)) - break; - sglist++; + + scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) { + if (priv->qabort) { + REG0; + return ((priv->qabort == 1 ? + DID_ABORT : DID_RESET) << 16); } + buf = page_address(sg->page) + sg->offset; + if (ql_pdma(priv, phase, buf, sg->length)) + break; } REG0; rtrc(2) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index e8350c5..9adb64a 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -18,12 +18,12 @@ #include #include #include #include -#include #include #include #include #include #include +#include #include #include @@ -640,16 +640,8 @@ static int scsi_send_eh_cmnd(struct scsi memcpy(scmd->cmnd, cmnd, cmnd_size); if (copy_sense) { - gfp_t gfp_mask = GFP_ATOMIC; - - if (shost->hostt->unchecked_isa_dma) - gfp_mask |= __GFP_DMA; - - sgl.page = alloc_page(gfp_mask); - if (!sgl.page) - return FAILED; - sgl.offset = 0; - sgl.length = 252; + sg_init_one(&sgl, scmd->sense_buffer, + sizeof(scmd->sense_buffer)); scmd->sc_data_direction = DMA_FROM_DEVICE; scmd->request_bufflen = sgl.length; @@ -720,18 +712,6 @@ static int scsi_send_eh_cmnd(struct scsi /* - * Last chance to have valid sense data. - */ - if (copy_sense) { - if (!SCSI_SENSE_VALID(scmd)) { - memcpy(scmd->sense_buffer, page_address(sgl.page), - sizeof(scmd->sense_buffer)); - } - __free_page(sgl.page); - } - - - /* * Restore original data */ scmd->request_buffer = old_buffer; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 1f5a07b..70454b4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2290,3 +2290,41 @@ void scsi_kunmap_atomic_sg(void *virt) kunmap_atomic(virt, KM_BIO_SRC_IRQ); } EXPORT_SYMBOL(scsi_kunmap_atomic_sg); + +/** + * scsi_dma_map - perform DMA mapping against command's sg lists + * @cmd: scsi command + * + * Returns the number of sg lists actually used, zero if the sg lists + * is NULL, or -ENOMEM if the mapping failed. + */ +int scsi_dma_map(struct scsi_cmnd *cmd) +{ + int nseg = 0; + + if (scsi_sg_count(cmd)) { + struct device *dev = cmd->device->host->shost_gendev.parent; + + nseg = dma_map_sg(dev, scsi_sglist(cmd), scsi_sg_count(cmd), + cmd->sc_data_direction); + if (unlikely(!nseg)) + return -ENOMEM; + } + return nseg; +} +EXPORT_SYMBOL(scsi_dma_map); + +/** + * scsi_dma_unmap - unmap command's sg lists mapped by scsi_dma_map + * @cmd: scsi command + */ +void scsi_dma_unmap(struct scsi_cmnd *cmd) +{ + if (scsi_sg_count(cmd)) { + struct device *dev = cmd->device->host->shost_gendev.parent; + + dma_unmap_sg(dev, scsi_sglist(cmd), scsi_sg_count(cmd), + cmd->sc_data_direction); + } +} +EXPORT_SYMBOL(scsi_dma_unmap); diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 67a38a1..ed72086 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -293,30 +293,18 @@ static int scsi_bus_suspend(struct devic { struct device_driver *drv = dev->driver; struct scsi_device *sdev = to_scsi_device(dev); - struct scsi_host_template *sht = sdev->host->hostt; int err; err = scsi_device_quiesce(sdev); if (err) return err; - /* call HLD suspend first */ if (drv && drv->suspend) { err = drv->suspend(dev, state); if (err) return err; } - /* then, call host suspend */ - if (sht->suspend) { - err = sht->suspend(sdev, state); - if (err) { - if (drv && drv->resume) - drv->resume(dev); - return err; - } - } - return 0; } @@ -324,21 +312,14 @@ static int scsi_bus_resume(struct device { struct device_driver *drv = dev->driver; struct scsi_device *sdev = to_scsi_device(dev); - struct scsi_host_template *sht = sdev->host->hostt; - int err = 0, err2 = 0; - - /* call host resume first */ - if (sht->resume) - err = sht->resume(sdev); + int err = 0; - /* then, call HLD resume */ if (drv && drv->resume) - err2 = drv->resume(dev); + err = drv->resume(dev); scsi_device_resume(sdev); - /* favor LLD failure */ - return err ? err : err2;; + return err; } struct bus_type scsi_bus_type = { diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index b4d1ece..4953f0d 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1,4 +1,4 @@ -/* +/* * FiberChannel transport specific attributes exported to sysfs. * * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. @@ -19,9 +19,10 @@ * * ======== * - * Copyright (C) 2004-2005 James Smart, Emulex Corporation + * Copyright (C) 2004-2007 James Smart, Emulex Corporation * Rewrite for host, target, device, and remote port attributes, * statistics, and service functions... + * Add vports, etc * */ #include @@ -37,6 +38,34 @@ #include #include "scsi_priv.h" static int fc_queue_work(struct Scsi_Host *, struct work_struct *); +static void fc_vport_sched_delete(struct work_struct *work); + +/* + * This is a temporary carrier for creating a vport. It will eventually + * be replaced by a real message definition for sgio or netlink. + * + * fc_vport_identifiers: This set of data contains all elements + * to uniquely identify and instantiate a FC virtual port. + * + * Notes: + * symbolic_name: The driver is to append the symbolic_name string data + * to the symbolic_node_name data that it generates by default. + * the resulting combination should then be registered with the switch. + * It is expected that things like Xen may stuff a VM title into + * this field. + */ +struct fc_vport_identifiers { + u64 node_name; + u64 port_name; + u32 roles; + bool disable; + enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */ + char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN]; +}; + +static int fc_vport_create(struct Scsi_Host *shost, int channel, + struct device *pdev, struct fc_vport_identifiers *ids, + struct fc_vport **vport); /* * Redefine so that we can have same named attributes in the @@ -90,10 +119,14 @@ static struct { { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, { FC_PORTTYPE_LPORT, "LPort (private loop)" }, { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection" }, + { FC_PORTTYPE_NPIV, "NPIV VPORT" }, }; fc_enum_name_search(port_type, fc_port_type, fc_port_type_names) #define FC_PORTTYPE_MAX_NAMELEN 50 +/* Reuse fc_port_type enum function for vport_type */ +#define get_fc_vport_type_name get_fc_port_type_name + /* Convert fc_host_event_code values to ascii string name */ static const struct { @@ -139,6 +172,29 @@ fc_enum_name_search(port_state, fc_port_ #define FC_PORTSTATE_MAX_NAMELEN 20 +/* Convert fc_vport_state values to ascii string name */ +static struct { + enum fc_vport_state value; + char *name; +} fc_vport_state_names[] = { + { FC_VPORT_UNKNOWN, "Unknown" }, + { FC_VPORT_ACTIVE, "Active" }, + { FC_VPORT_DISABLED, "Disabled" }, + { FC_VPORT_LINKDOWN, "Linkdown" }, + { FC_VPORT_INITIALIZING, "Initializing" }, + { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, + { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, + { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, + { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, + { FC_VPORT_FAILED, "VPort Failed" }, +}; +fc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) +#define FC_VPORTSTATE_MAX_NAMELEN 24 + +/* Reuse fc_vport_state enum function for vport_last_state */ +#define get_fc_vport_last_state_name get_fc_vport_state_name + + /* Convert fc_tgtid_binding_type values to ascii string name */ static const struct { enum fc_tgtid_binding_type value; @@ -219,16 +275,16 @@ show_fc_fc4s (char *buf, u8 *fc4_list) } -/* Convert FC_RPORT_ROLE bit values to ascii string name */ +/* Convert FC_PORT_ROLE bit values to ascii string name */ static const struct { u32 value; char *name; -} fc_remote_port_role_names[] = { - { FC_RPORT_ROLE_FCP_TARGET, "FCP Target" }, - { FC_RPORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, - { FC_RPORT_ROLE_IP_PORT, "IP Port" }, +} fc_port_role_names[] = { + { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, + { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, + { FC_PORT_ROLE_IP_PORT, "IP Port" }, }; -fc_bitfield_name_search(remote_port_roles, fc_remote_port_role_names) +fc_bitfield_name_search(port_roles, fc_port_role_names) /* * Define roles that are specific to port_id. Values are relative to ROLE_MASK. @@ -252,7 +308,8 @@ static void fc_scsi_scan_rport(struct wo */ #define FC_STARGET_NUM_ATTRS 3 #define FC_RPORT_NUM_ATTRS 10 -#define FC_HOST_NUM_ATTRS 17 +#define FC_VPORT_NUM_ATTRS 9 +#define FC_HOST_NUM_ATTRS 21 struct fc_internal { struct scsi_transport_template t; @@ -278,6 +335,10 @@ struct fc_internal { struct transport_container rport_attr_cont; struct class_device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; struct class_device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; + + struct transport_container vport_attr_cont; + struct class_device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; + struct class_device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; }; #define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) @@ -318,7 +379,7 @@ static int fc_host_setup(struct transpor struct Scsi_Host *shost = dev_to_shost(dev); struct fc_host_attrs *fc_host = shost_to_fc_host(shost); - /* + /* * Set default values easily detected by the midlayer as * failure cases. The scsi lldd is responsible for initializing * all transport attributes to valid values per host. @@ -331,6 +392,7 @@ static int fc_host_setup(struct transpor sizeof(fc_host->supported_fc4s)); fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; fc_host->maxframe_size = -1; + fc_host->max_npiv_vports = 0; memset(fc_host->serial_number, 0, sizeof(fc_host->serial_number)); @@ -348,8 +410,11 @@ static int fc_host_setup(struct transpor INIT_LIST_HEAD(&fc_host->rports); INIT_LIST_HEAD(&fc_host->rport_bindings); + INIT_LIST_HEAD(&fc_host->vports); fc_host->next_rport_number = 0; fc_host->next_target_id = 0; + fc_host->next_vport_number = 0; + fc_host->npiv_vports_inuse = 0; snprintf(fc_host->work_q_name, KOBJ_NAME_LEN, "fc_wq_%d", shost->host_no); @@ -388,6 +453,16 @@ static DECLARE_TRANSPORT_CLASS(fc_rport_ NULL); /* + * Setup and Remove actions for virtual ports are handled + * in the service functions below. + */ +static DECLARE_TRANSPORT_CLASS(fc_vport_class, + "fc_vports", + NULL, + NULL, + NULL); + +/* * Module Parameters */ @@ -585,6 +660,9 @@ static __init int fc_transport_init(void error = transport_class_register(&fc_host_class); if (error) return error; + error = transport_class_register(&fc_vport_class); + if (error) + return error; error = transport_class_register(&fc_rport_class); if (error) return error; @@ -596,6 +674,7 @@ static void __exit fc_transport_exit(voi transport_class_unregister(&fc_transport_class); transport_class_unregister(&fc_rport_class); transport_class_unregister(&fc_host_class); + transport_class_unregister(&fc_vport_class); } /* @@ -800,9 +879,9 @@ show_fc_rport_roles (struct class_device return snprintf(buf, 30, "Unknown Fabric Entity\n"); } } else { - if (rport->roles == FC_RPORT_ROLE_UNKNOWN) + if (rport->roles == FC_PORT_ROLE_UNKNOWN) return snprintf(buf, 20, "unknown\n"); - return get_fc_remote_port_roles_names(rport->roles, buf); + return get_fc_port_roles_names(rport->roles, buf); } } static FC_CLASS_DEVICE_ATTR(rport, roles, S_IRUGO, @@ -857,7 +936,7 @@ static FC_CLASS_DEVICE_ATTR(rport, fast_ /* * Note: in the target show function we recognize when the remote - * port is in the hierarchy and do not allow the driver to get + * port is in the heirarchy and do not allow the driver to get * involved in sysfs functions. The driver only gets involved if * it's the "old" style that doesn't use rports. */ @@ -912,6 +991,257 @@ fc_starget_rd_attr(port_id, "0x%06x\n", /* + * FC Virtual Port Attribute Management + */ + +#define fc_vport_show_function(field, format_string, sz, cast) \ +static ssize_t \ +show_fc_vport_##field (struct class_device *cdev, char *buf) \ +{ \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + struct Scsi_Host *shost = vport_to_shost(vport); \ + struct fc_internal *i = to_fc_internal(shost->transportt); \ + if ((i->f->get_vport_##field) && \ + !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ + i->f->get_vport_##field(vport); \ + return snprintf(buf, sz, format_string, cast vport->field); \ +} + +#define fc_vport_store_function(field) \ +static ssize_t \ +store_fc_vport_##field(struct class_device *cdev, const char *buf, \ + size_t count) \ +{ \ + int val; \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + struct Scsi_Host *shost = vport_to_shost(vport); \ + struct fc_internal *i = to_fc_internal(shost->transportt); \ + char *cp; \ + if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ + return -EBUSY; \ + val = simple_strtoul(buf, &cp, 0); \ + if (*cp && (*cp != '\n')) \ + return -EINVAL; \ + i->f->set_vport_##field(vport, val); \ + return count; \ +} + +#define fc_vport_store_str_function(field, slen) \ +static ssize_t \ +store_fc_vport_##field(struct class_device *cdev, const char *buf, \ + size_t count) \ +{ \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + struct Scsi_Host *shost = vport_to_shost(vport); \ + struct fc_internal *i = to_fc_internal(shost->transportt); \ + unsigned int cnt=count; \ + \ + /* count may include a LF at end of string */ \ + if (buf[cnt-1] == '\n') \ + cnt--; \ + if (cnt > ((slen) - 1)) \ + return -EINVAL; \ + memcpy(vport->field, buf, cnt); \ + i->f->set_vport_##field(vport); \ + return count; \ +} + +#define fc_vport_rd_attr(field, format_string, sz) \ + fc_vport_show_function(field, format_string, sz, ) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO, \ + show_fc_vport_##field, NULL) + +#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ + fc_vport_show_function(field, format_string, sz, (cast)) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO, \ + show_fc_vport_##field, NULL) + +#define fc_vport_rw_attr(field, format_string, sz) \ + fc_vport_show_function(field, format_string, sz, ) \ + fc_vport_store_function(field) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ + show_fc_vport_##field, \ + store_fc_vport_##field) + +#define fc_private_vport_show_function(field, format_string, sz, cast) \ +static ssize_t \ +show_fc_vport_##field (struct class_device *cdev, char *buf) \ +{ \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + return snprintf(buf, sz, format_string, cast vport->field); \ +} + +#define fc_private_vport_store_u32_function(field) \ +static ssize_t \ +store_fc_vport_##field(struct class_device *cdev, const char *buf, \ + size_t count) \ +{ \ + u32 val; \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + char *cp; \ + if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ + return -EBUSY; \ + val = simple_strtoul(buf, &cp, 0); \ + if (*cp && (*cp != '\n')) \ + return -EINVAL; \ + vport->field = val; \ + return count; \ +} + + +#define fc_private_vport_rd_attr(field, format_string, sz) \ + fc_private_vport_show_function(field, format_string, sz, ) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO, \ + show_fc_vport_##field, NULL) + +#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ + fc_private_vport_show_function(field, format_string, sz, (cast)) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO, \ + show_fc_vport_##field, NULL) + +#define fc_private_vport_rw_u32_attr(field, format_string, sz) \ + fc_private_vport_show_function(field, format_string, sz, ) \ + fc_private_vport_store_u32_function(field) \ +static FC_CLASS_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ + show_fc_vport_##field, \ + store_fc_vport_##field) + + +#define fc_private_vport_rd_enum_attr(title, maxlen) \ +static ssize_t \ +show_fc_vport_##title (struct class_device *cdev, char *buf) \ +{ \ + struct fc_vport *vport = transport_class_to_vport(cdev); \ + const char *name; \ + name = get_fc_##title##_name(vport->title); \ + if (!name) \ + return -EINVAL; \ + return snprintf(buf, maxlen, "%s\n", name); \ +} \ +static FC_CLASS_DEVICE_ATTR(vport, title, S_IRUGO, \ + show_fc_vport_##title, NULL) + + +#define SETUP_VPORT_ATTRIBUTE_RD(field) \ + i->private_vport_attrs[count] = class_device_attr_vport_##field; \ + i->private_vport_attrs[count].attr.mode = S_IRUGO; \ + i->private_vport_attrs[count].store = NULL; \ + i->vport_attrs[count] = &i->private_vport_attrs[count]; \ + if (i->f->get_##field) \ + count++ + /* NOTE: Above MACRO differs: checks function not show bit */ + +#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ + i->private_vport_attrs[count] = class_device_attr_vport_##field; \ + i->private_vport_attrs[count].attr.mode = S_IRUGO; \ + i->private_vport_attrs[count].store = NULL; \ + i->vport_attrs[count] = &i->private_vport_attrs[count]; \ + count++ + +#define SETUP_VPORT_ATTRIBUTE_WR(field) \ + i->private_vport_attrs[count] = class_device_attr_vport_##field; \ + i->vport_attrs[count] = &i->private_vport_attrs[count]; \ + if (i->f->field) \ + count++ + /* NOTE: Above MACRO differs: checks function */ + +#define SETUP_VPORT_ATTRIBUTE_RW(field) \ + i->private_vport_attrs[count] = class_device_attr_vport_##field; \ + if (!i->f->set_vport_##field) { \ + i->private_vport_attrs[count].attr.mode = S_IRUGO; \ + i->private_vport_attrs[count].store = NULL; \ + } \ + i->vport_attrs[count] = &i->private_vport_attrs[count]; \ + count++ + /* NOTE: Above MACRO differs: does not check show bit */ + +#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ +{ \ + i->private_vport_attrs[count] = class_device_attr_vport_##field; \ + i->vport_attrs[count] = &i->private_vport_attrs[count]; \ + count++; \ +} + + +/* The FC Transport Virtual Port Attributes: */ + +/* Fixed Virtual Port Attributes */ + +/* Dynamic Virtual Port Attributes */ + +/* Private Virtual Port Attributes */ + +fc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); +fc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); +fc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); +fc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); + +static ssize_t +show_fc_vport_roles (struct class_device *cdev, char *buf) +{ + struct fc_vport *vport = transport_class_to_vport(cdev); + + if (vport->roles == FC_PORT_ROLE_UNKNOWN) + return snprintf(buf, 20, "unknown\n"); + return get_fc_port_roles_names(vport->roles, buf); +} +static FC_CLASS_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); + +fc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); + +fc_private_vport_show_function(symbolic_name, "%s\n", + FC_VPORT_SYMBOLIC_NAMELEN + 1, ) +fc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) +static FC_CLASS_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, + show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); + +static ssize_t +store_fc_vport_delete(struct class_device *cdev, const char *buf, + size_t count) +{ + struct fc_vport *vport = transport_class_to_vport(cdev); + struct Scsi_Host *shost = vport_to_shost(vport); + + fc_queue_work(shost, &vport->vport_delete_work); + return count; +} +static FC_CLASS_DEVICE_ATTR(vport, vport_delete, S_IWUSR, + NULL, store_fc_vport_delete); + + +/* + * Enable/Disable vport + * Write "1" to disable, write "0" to enable + */ +static ssize_t +store_fc_vport_disable(struct class_device *cdev, const char *buf, + size_t count) +{ + struct fc_vport *vport = transport_class_to_vport(cdev); + struct Scsi_Host *shost = vport_to_shost(vport); + struct fc_internal *i = to_fc_internal(shost->transportt); + int stat; + + if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) + return -EBUSY; + + if (*buf == '0') { + if (vport->vport_state != FC_VPORT_DISABLED) + return -EALREADY; + } else if (*buf == '1') { + if (vport->vport_state == FC_VPORT_DISABLED) + return -EALREADY; + } else + return -EINVAL; + + stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); + return stat ? stat : count; +} +static FC_CLASS_DEVICE_ATTR(vport, vport_disable, S_IWUSR, + NULL, store_fc_vport_disable); + + +/* * Host Attribute Management */ @@ -1003,6 +1333,13 @@ #define SETUP_HOST_ATTRIBUTE_RD(field) if (i->f->show_host_##field) \ count++ +#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ + i->private_host_attrs[count] = class_device_attr_host_##field; \ + i->private_host_attrs[count].attr.mode = S_IRUGO; \ + i->private_host_attrs[count].store = NULL; \ + i->host_attrs[count] = &i->private_host_attrs[count]; \ + count++ + #define SETUP_HOST_ATTRIBUTE_RW(field) \ i->private_host_attrs[count] = class_device_attr_host_##field; \ if (!i->f->set_host_##field) { \ @@ -1090,6 +1427,7 @@ fc_private_host_rd_attr_cast(port_name, fc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, unsigned long long); fc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); +fc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); fc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); @@ -1210,6 +1548,9 @@ store_fc_private_host_issue_lip(struct c static FC_CLASS_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, store_fc_private_host_issue_lip); +fc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); + + /* * Host Statistics Management */ @@ -1285,7 +1626,6 @@ fc_reset_statistics(struct class_device static FC_CLASS_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, fc_reset_statistics); - static struct attribute *fc_statistics_attrs[] = { &class_device_attr_host_seconds_since_last_reset.attr, &class_device_attr_host_tx_frames.attr, @@ -1316,6 +1656,142 @@ static struct attribute_group fc_statist .attrs = fc_statistics_attrs, }; + +/* Host Vport Attributes */ + +static int +fc_parse_wwn(const char *ns, u64 *nm) +{ + unsigned int i, j; + u8 wwn[8]; + + memset(wwn, 0, sizeof(wwn)); + + /* Validate and store the new name */ + for (i=0, j=0; i < 16; i++) { + if ((*ns >= 'a') && (*ns <= 'f')) + j = ((j << 4) | ((*ns++ -'a') + 10)); + else if ((*ns >= 'A') && (*ns <= 'F')) + j = ((j << 4) | ((*ns++ -'A') + 10)); + else if ((*ns >= '0') && (*ns <= '9')) + j = ((j << 4) | (*ns++ -'0')); + else + return -EINVAL; + if (i % 2) { + wwn[i/2] = j & 0xff; + j = 0; + } + } + + *nm = wwn_to_u64(wwn); + + return 0; +} + + +/* + * "Short-cut" sysfs variable to create a new vport on a FC Host. + * Input is a string of the form ":". Other attributes + * will default to a NPIV-based FCP_Initiator; The WWNs are specified + * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) + */ +static ssize_t +store_fc_host_vport_create(struct class_device *cdev, const char *buf, + size_t count) +{ + struct Scsi_Host *shost = transport_class_to_shost(cdev); + struct fc_vport_identifiers vid; + struct fc_vport *vport; + unsigned int cnt=count; + int stat; + + memset(&vid, 0, sizeof(vid)); + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + /* validate we have enough characters for WWPN */ + if ((cnt != (16+1+16)) || (buf[16] != ':')) + return -EINVAL; + + stat = fc_parse_wwn(&buf[0], &vid.port_name); + if (stat) + return stat; + + stat = fc_parse_wwn(&buf[17], &vid.node_name); + if (stat) + return stat; + + vid.roles = FC_PORT_ROLE_FCP_INITIATOR; + vid.vport_type = FC_PORTTYPE_NPIV; + /* vid.symbolic_name is already zero/NULL's */ + vid.disable = false; /* always enabled */ + + /* we only allow support on Channel 0 !!! */ + stat = fc_vport_create(shost, 0, &shost->shost_gendev, &vid, &vport); + return stat ? stat : count; +} +static FC_CLASS_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, + store_fc_host_vport_create); + + +/* + * "Short-cut" sysfs variable to delete a vport on a FC Host. + * Vport is identified by a string containing ":". + * The WWNs are specified as hex characters, and may *not* contain + * any prefixes (e.g. 0x, x, etc) + */ +static ssize_t +store_fc_host_vport_delete(struct class_device *cdev, const char *buf, + size_t count) +{ + struct Scsi_Host *shost = transport_class_to_shost(cdev); + struct fc_host_attrs *fc_host = shost_to_fc_host(shost); + struct fc_vport *vport; + u64 wwpn, wwnn; + unsigned long flags; + unsigned int cnt=count; + int stat, match; + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + /* validate we have enough characters for WWPN */ + if ((cnt != (16+1+16)) || (buf[16] != ':')) + return -EINVAL; + + stat = fc_parse_wwn(&buf[0], &wwpn); + if (stat) + return stat; + + stat = fc_parse_wwn(&buf[17], &wwnn); + if (stat) + return stat; + + spin_lock_irqsave(shost->host_lock, flags); + match = 0; + /* we only allow support on Channel 0 !!! */ + list_for_each_entry(vport, &fc_host->vports, peers) { + if ((vport->channel == 0) && + (vport->port_name == wwpn) && (vport->node_name == wwnn)) { + match = 1; + break; + } + } + spin_unlock_irqrestore(shost->host_lock, flags); + + if (!match) + return -ENODEV; + + stat = fc_vport_terminate(vport); + return stat ? stat : count; +} +static FC_CLASS_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, + store_fc_host_vport_delete); + + static int fc_host_match(struct attribute_container *cont, struct device *dev) { @@ -1387,6 +1863,40 @@ static int fc_rport_match(struct attribu } +static void fc_vport_dev_release(struct device *dev) +{ + struct fc_vport *vport = dev_to_vport(dev); + put_device(dev->parent); /* release kobj parent */ + kfree(vport); +} + +int scsi_is_fc_vport(const struct device *dev) +{ + return dev->release == fc_vport_dev_release; +} +EXPORT_SYMBOL(scsi_is_fc_vport); + +static int fc_vport_match(struct attribute_container *cont, + struct device *dev) +{ + struct fc_vport *vport; + struct Scsi_Host *shost; + struct fc_internal *i; + + if (!scsi_is_fc_vport(dev)) + return 0; + vport = dev_to_vport(dev); + + shost = vport_to_shost(vport); + if (!shost->transportt || shost->transportt->host_attrs.ac.class + != &fc_host_class.class) + return 0; + + i = to_fc_internal(shost->transportt); + return &i->vport_attr_cont.ac == cont; +} + + /** * fc_timed_out - FC Transport I/O timeout intercept handler * @@ -1472,6 +1982,11 @@ fc_attach_transport(struct fc_function_t i->rport_attr_cont.ac.match = fc_rport_match; transport_container_register(&i->rport_attr_cont); + i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; + i->vport_attr_cont.ac.class = &fc_vport_class.class; + i->vport_attr_cont.ac.match = fc_vport_match; + transport_container_register(&i->vport_attr_cont); + i->f = ft; /* Transport uses the shost workq for scsi scanning */ @@ -1480,7 +1995,7 @@ fc_attach_transport(struct fc_function_t i->t.eh_timed_out = fc_timed_out; i->t.user_scan = fc_user_scan; - + /* * Setup SCSI Target Attributes. */ @@ -1505,6 +2020,10 @@ fc_attach_transport(struct fc_function_t SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); SETUP_HOST_ATTRIBUTE_RD(supported_speeds); SETUP_HOST_ATTRIBUTE_RD(maxframe_size); + if (ft->vport_create) { + SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); + SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); + } SETUP_HOST_ATTRIBUTE_RD(serial_number); SETUP_HOST_ATTRIBUTE_RD(port_id); @@ -1520,6 +2039,10 @@ fc_attach_transport(struct fc_function_t SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); if (ft->issue_fc_host_lip) SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); + if (ft->vport_create) + SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); + if (ft->vport_delete) + SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); BUG_ON(count > FC_HOST_NUM_ATTRS); @@ -1545,6 +2068,24 @@ fc_attach_transport(struct fc_function_t i->rport_attrs[count] = NULL; + /* + * Setup Virtual Port Attributes. + */ + count=0; + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); + SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); + SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); + SETUP_VPORT_ATTRIBUTE_WR(vport_delete); + SETUP_VPORT_ATTRIBUTE_WR(vport_disable); + + BUG_ON(count > FC_VPORT_NUM_ATTRS); + + i->vport_attrs[count] = NULL; + return &i->t; } EXPORT_SYMBOL(fc_attach_transport); @@ -1556,6 +2097,7 @@ void fc_release_transport(struct scsi_tr transport_container_unregister(&i->t.target_attrs); transport_container_unregister(&i->t.host_attrs); transport_container_unregister(&i->rport_attr_cont); + transport_container_unregister(&i->vport_attr_cont); kfree(i); } @@ -1667,9 +2209,17 @@ fc_flush_devloss(struct Scsi_Host *shost void fc_remove_host(struct Scsi_Host *shost) { - struct fc_rport *rport, *next_rport; + struct fc_vport *vport = NULL, *next_vport = NULL; + struct fc_rport *rport = NULL, *next_rport = NULL; struct workqueue_struct *work_q; struct fc_host_attrs *fc_host = shost_to_fc_host(shost); + unsigned long flags; + + spin_lock_irqsave(shost->host_lock, flags); + + /* Remove any vports */ + list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) + fc_queue_work(shost, &vport->vport_delete_work); /* Remove any remote ports */ list_for_each_entry_safe(rport, next_rport, @@ -1686,6 +2236,8 @@ fc_remove_host(struct Scsi_Host *shost) fc_queue_work(shost, &rport->rport_delete_work); } + spin_unlock_irqrestore(shost->host_lock, flags); + /* flush all scan work items */ scsi_flush_work(shost); @@ -1744,7 +2296,7 @@ fc_rport_final_delete(struct work_struct unsigned long flags; /* - * if a scan is pending, flush the SCSI Host work_q so that + * if a scan is pending, flush the SCSI Host work_q so that * that we can reclaim the rport scan work element. */ if (rport->flags & FC_RPORT_SCAN_PENDING) @@ -1844,7 +2396,7 @@ fc_rport_create(struct Scsi_Host *shost, spin_lock_irqsave(shost->host_lock, flags); rport->number = fc_host->next_rport_number++; - if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) + if (rport->roles & FC_PORT_ROLE_FCP_TARGET) rport->scsi_target_id = fc_host->next_target_id++; else rport->scsi_target_id = -1; @@ -1869,7 +2421,7 @@ fc_rport_create(struct Scsi_Host *shost, transport_add_device(dev); transport_configure_device(dev); - if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) { + if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { /* initiate a scan of the target */ rport->flags |= FC_RPORT_SCAN_PENDING; scsi_queue_work(shost, &rport->scan_work); @@ -2003,7 +2555,7 @@ fc_remote_port_add(struct Scsi_Host *sho /* was a target, not in roles */ if ((rport->scsi_target_id != -1) && - (!(ids->roles & FC_RPORT_ROLE_FCP_TARGET))) + (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) return rport; /* @@ -2086,7 +2638,7 @@ fc_remote_port_add(struct Scsi_Host *sho memset(rport->dd_data, 0, fci->f->dd_fcrport_size); - if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) { + if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { /* initiate a scan of the target */ rport->flags |= FC_RPORT_SCAN_PENDING; scsi_queue_work(shost, &rport->scan_work); @@ -2243,11 +2795,11 @@ fc_remote_port_rolechg(struct fc_rport int create = 0; spin_lock_irqsave(shost->host_lock, flags); - if (roles & FC_RPORT_ROLE_FCP_TARGET) { + if (roles & FC_PORT_ROLE_FCP_TARGET) { if (rport->scsi_target_id == -1) { rport->scsi_target_id = fc_host->next_target_id++; create = 1; - } else if (!(rport->roles & FC_RPORT_ROLE_FCP_TARGET)) + } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) create = 1; } @@ -2294,7 +2846,7 @@ EXPORT_SYMBOL(fc_remote_port_rolechg); * fc_timeout_deleted_rport - Timeout handler for a deleted remote port, * which we blocked, and has now failed to return * in the allotted time. - * + * * @work: rport target that failed to reappear in the allotted time. **/ static void @@ -2317,7 +2869,7 @@ fc_timeout_deleted_rport(struct work_str */ if ((rport->port_state == FC_PORTSTATE_ONLINE) && (rport->scsi_target_id != -1) && - !(rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { + !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { dev_printk(KERN_ERR, &rport->dev, "blocked FC remote port time out: no longer" " a FCP target, removing starget\n"); @@ -2367,7 +2919,7 @@ fc_timeout_deleted_rport(struct work_str */ rport->maxframe_size = -1; rport->supported_classes = FC_COS_UNSPECIFIED; - rport->roles = FC_RPORT_ROLE_UNKNOWN; + rport->roles = FC_PORT_ROLE_UNKNOWN; rport->port_state = FC_PORTSTATE_NOTPRESENT; /* remove the identifiers that aren't used in the consisting binding */ @@ -2436,7 +2988,7 @@ fc_scsi_scan_rport(struct work_struct *w unsigned long flags; if ((rport->port_state == FC_PORTSTATE_ONLINE) && - (rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { + (rport->roles & FC_PORT_ROLE_FCP_TARGET)) { scsi_scan_target(&rport->dev, rport->channel, rport->scsi_target_id, SCAN_WILD_CARD, 1); } @@ -2447,7 +2999,227 @@ fc_scsi_scan_rport(struct work_struct *w } -MODULE_AUTHOR("Martin Hicks"); +/** + * fc_vport_create - allocates and creates a FC virtual port. + * @shost: scsi host the virtual port is connected to. + * @channel: Channel on shost port connected to. + * @pdev: parent device for vport + * @ids: The world wide names, FC4 port roles, etc for + * the virtual port. + * @ret_vport: The pointer to the created vport. + * + * Allocates and creates the vport structure, calls the parent host + * to instantiate the vport, the completes w/ class and sysfs creation. + * + * Notes: + * This routine assumes no locks are held on entry. + **/ +static int +fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev, + struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) +{ + struct fc_host_attrs *fc_host = shost_to_fc_host(shost); + struct fc_internal *fci = to_fc_internal(shost->transportt); + struct fc_vport *vport; + struct device *dev; + unsigned long flags; + size_t size; + int error; + + *ret_vport = NULL; + + if ( ! fci->f->vport_create) + return -ENOENT; + + size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); + vport = kzalloc(size, GFP_KERNEL); + if (unlikely(!vport)) { + printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); + return -ENOMEM; + } + + vport->vport_state = FC_VPORT_UNKNOWN; + vport->vport_last_state = FC_VPORT_UNKNOWN; + vport->node_name = ids->node_name; + vport->port_name = ids->port_name; + vport->roles = ids->roles; + vport->vport_type = ids->vport_type; + if (fci->f->dd_fcvport_size) + vport->dd_data = &vport[1]; + vport->shost = shost; + vport->channel = channel; + vport->flags = FC_VPORT_CREATING; + INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); + + spin_lock_irqsave(shost->host_lock, flags); + + if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { + spin_unlock_irqrestore(shost->host_lock, flags); + kfree(vport); + return -ENOSPC; + } + fc_host->npiv_vports_inuse++; + vport->number = fc_host->next_vport_number++; + list_add_tail(&vport->peers, &fc_host->vports); + get_device(&shost->shost_gendev); /* for fc_host->vport list */ + + spin_unlock_irqrestore(shost->host_lock, flags); + + dev = &vport->dev; + device_initialize(dev); /* takes self reference */ + dev->parent = get_device(pdev); /* takes parent reference */ + dev->release = fc_vport_dev_release; + sprintf(dev->bus_id, "vport-%d:%d-%d", + shost->host_no, channel, vport->number); + transport_setup_device(dev); + + error = device_add(dev); + if (error) { + printk(KERN_ERR "FC Virtual Port device_add failed\n"); + goto delete_vport; + } + transport_add_device(dev); + transport_configure_device(dev); + + error = fci->f->vport_create(vport, ids->disable); + if (error) { + printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); + goto delete_vport_all; + } + + /* + * if the parent isn't the physical adapter's Scsi_Host, ensure + * the Scsi_Host at least contains ia symlink to the vport. + */ + if (pdev != &shost->shost_gendev) { + error = sysfs_create_link(&shost->shost_gendev.kobj, + &dev->kobj, dev->bus_id); + if (error) + printk(KERN_ERR + "%s: Cannot create vport symlinks for " + "%s, err=%d\n", + __FUNCTION__, dev->bus_id, error); + } + spin_lock_irqsave(shost->host_lock, flags); + vport->flags &= ~FC_VPORT_CREATING; + spin_unlock_irqrestore(shost->host_lock, flags); + + dev_printk(KERN_NOTICE, pdev, + "%s created via shost%d channel %d\n", dev->bus_id, + shost->host_no, channel); + + *ret_vport = vport; + + return 0; + +delete_vport_all: + transport_remove_device(dev); + device_del(dev); +delete_vport: + transport_destroy_device(dev); + spin_lock_irqsave(shost->host_lock, flags); + list_del(&vport->peers); + put_device(&shost->shost_gendev); /* for fc_host->vport list */ + fc_host->npiv_vports_inuse--; + spin_unlock_irqrestore(shost->host_lock, flags); + put_device(dev->parent); + kfree(vport); + + return error; +} + + +/** + * fc_vport_terminate - Admin App or LLDD requests termination of a vport + * @vport: fc_vport to be terminated + * + * Calls the LLDD vport_delete() function, then deallocates and removes + * the vport from the shost and object tree. + * + * Notes: + * This routine assumes no locks are held on entry. + **/ +int +fc_vport_terminate(struct fc_vport *vport) +{ + struct Scsi_Host *shost = vport_to_shost(vport); + struct fc_host_attrs *fc_host = shost_to_fc_host(shost); + struct fc_internal *i = to_fc_internal(shost->transportt); + struct device *dev = &vport->dev; + unsigned long flags; + int stat; + + spin_lock_irqsave(shost->host_lock, flags); + if (vport->flags & FC_VPORT_CREATING) { + spin_unlock_irqrestore(shost->host_lock, flags); + return -EBUSY; + } + if (vport->flags & (FC_VPORT_DEL)) { + spin_unlock_irqrestore(shost->host_lock, flags); + return -EALREADY; + } + vport->flags |= FC_VPORT_DELETING; + spin_unlock_irqrestore(shost->host_lock, flags); + + if (i->f->vport_delete) + stat = i->f->vport_delete(vport); + else + stat = -ENOENT; + + spin_lock_irqsave(shost->host_lock, flags); + vport->flags &= ~FC_VPORT_DELETING; + if (!stat) { + vport->flags |= FC_VPORT_DELETED; + list_del(&vport->peers); + fc_host->npiv_vports_inuse--; + put_device(&shost->shost_gendev); /* for fc_host->vport list */ + } + spin_unlock_irqrestore(shost->host_lock, flags); + + if (stat) + return stat; + + if (dev->parent != &shost->shost_gendev) + sysfs_remove_link(&shost->shost_gendev.kobj, dev->bus_id); + transport_remove_device(dev); + device_del(dev); + transport_destroy_device(dev); + + /* + * Removing our self-reference should mean our + * release function gets called, which will drop the remaining + * parent reference and free the data structure. + */ + put_device(dev); /* for self-reference */ + + return 0; /* SUCCESS */ +} +EXPORT_SYMBOL(fc_vport_terminate); + +/** + * fc_vport_sched_delete - workq-based delete request for a vport + * + * @work: vport to be deleted. + **/ +static void +fc_vport_sched_delete(struct work_struct *work) +{ + struct fc_vport *vport = + container_of(work, struct fc_vport, vport_delete_work); + int stat; + + stat = fc_vport_terminate(vport); + if (stat) + dev_printk(KERN_ERR, vport->dev.parent, + "%s: %s could not be deleted created via " + "shost%d channel %d - error %d\n", __FUNCTION__, + vport->dev.bus_id, vport->shost->host_no, + vport->channel, stat); +} + + +/* Original Author: Martin Hicks */ +MODULE_AUTHOR("James Smart"); MODULE_DESCRIPTION("FC Transport Attributes"); MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 3d8c9cb..448d316 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1515,7 +1515,7 @@ static int sd_revalidate_disk(struct gen if (!scsi_device_online(sdp)) goto out; - buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL | __GFP_DMA); + buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL); if (!buffer) { sd_printk(KERN_WARNING, sdkp, "sd_revalidate_disk: Memory " "allocation failure.\n"); diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 0c691a6..85d3894 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1842,7 +1842,7 @@ sg_build_indirect(Sg_scatter_hold * schp int blk_size = buff_size; struct page *p = NULL; - if ((blk_size < 0) || (!sfp)) + if (blk_size < 0) return -EFAULT; if (0 == blk_size) ++blk_size; /* don't know why */ diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 9ac83ab..adda296 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -395,53 +395,34 @@ static struct req_msg *stex_alloc_req(st static int stex_map_sg(struct st_hba *hba, struct req_msg *req, struct st_ccb *ccb) { - struct pci_dev *pdev = hba->pdev; struct scsi_cmnd *cmd; - dma_addr_t dma_handle; - struct scatterlist *src; + struct scatterlist *sg; struct st_sgtable *dst; - int i; + int i, nseg; cmd = ccb->cmd; dst = (struct st_sgtable *)req->variable; dst->max_sg_count = cpu_to_le16(ST_MAX_SG); - dst->sz_in_byte = cpu_to_le32(cmd->request_bufflen); - - if (cmd->use_sg) { - int n_elem; + dst->sz_in_byte = cpu_to_le32(scsi_bufflen(cmd)); - src = (struct scatterlist *) cmd->request_buffer; - n_elem = pci_map_sg(pdev, src, - cmd->use_sg, cmd->sc_data_direction); - if (n_elem <= 0) - return -EIO; + nseg = scsi_dma_map(cmd); + if (nseg < 0) + return -EIO; + if (nseg) { + ccb->sg_count = nseg; + dst->sg_count = cpu_to_le16((u16)nseg); - ccb->sg_count = n_elem; - dst->sg_count = cpu_to_le16((u16)n_elem); - - for (i = 0; i < n_elem; i++, src++) { - dst->table[i].count = cpu_to_le32((u32)sg_dma_len(src)); + scsi_for_each_sg(cmd, sg, nseg, i) { + dst->table[i].count = cpu_to_le32((u32)sg_dma_len(sg)); dst->table[i].addr = - cpu_to_le32(sg_dma_address(src) & 0xffffffff); + cpu_to_le32(sg_dma_address(sg) & 0xffffffff); dst->table[i].addr_hi = - cpu_to_le32((sg_dma_address(src) >> 16) >> 16); + cpu_to_le32((sg_dma_address(sg) >> 16) >> 16); dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST; } dst->table[--i].ctrl |= SG_CF_EOT; - return 0; } - dma_handle = pci_map_single(pdev, cmd->request_buffer, - cmd->request_bufflen, cmd->sc_data_direction); - cmd->SCp.dma_handle = dma_handle; - - ccb->sg_count = 1; - dst->sg_count = cpu_to_le16(1); - dst->table[0].addr = cpu_to_le32(dma_handle & 0xffffffff); - dst->table[0].addr_hi = cpu_to_le32((dma_handle >> 16) >> 16); - dst->table[0].count = cpu_to_le32((u32)cmd->request_bufflen); - dst->table[0].ctrl = SG_CF_EOT | SG_CF_64B | SG_CF_HOST; - return 0; } @@ -451,24 +432,24 @@ static void stex_internal_copy(struct sc size_t lcount; size_t len; void *s, *d, *base = NULL; - if (*count > cmd->request_bufflen) - *count = cmd->request_bufflen; + size_t offset; + + if (*count > scsi_bufflen(cmd)) + *count = scsi_bufflen(cmd); lcount = *count; while (lcount) { len = lcount; s = (void *)src; - if (cmd->use_sg) { - size_t offset = *count - lcount; - s += offset; - base = scsi_kmap_atomic_sg(cmd->request_buffer, - sg_count, &offset, &len); - if (base == NULL) { - *count -= lcount; - return; - } - d = base + offset; - } else - d = cmd->request_buffer; + + offset = *count - lcount; + s += offset; + base = scsi_kmap_atomic_sg(scsi_sglist(cmd), + sg_count, &offset, &len); + if (!base) { + *count -= lcount; + return; + } + d = base + offset; if (direction == ST_TO_CMD) memcpy(d, s, len); @@ -476,30 +457,24 @@ static void stex_internal_copy(struct sc memcpy(s, d, len); lcount -= len; - if (cmd->use_sg) - scsi_kunmap_atomic_sg(base); + scsi_kunmap_atomic_sg(base); } } static int stex_direct_copy(struct scsi_cmnd *cmd, const void *src, size_t count) { - struct st_hba *hba = (struct st_hba *) &cmd->device->host->hostdata[0]; size_t cp_len = count; int n_elem = 0; - if (cmd->use_sg) { - n_elem = pci_map_sg(hba->pdev, cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - if (n_elem <= 0) - return 0; - } + n_elem = scsi_dma_map(cmd); + if (n_elem < 0) + return 0; stex_internal_copy(cmd, src, &cp_len, n_elem, ST_TO_CMD); - if (cmd->use_sg) - pci_unmap_sg(hba->pdev, cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); + scsi_dma_unmap(cmd); + return cp_len == count; } @@ -678,18 +653,6 @@ stex_queuecommand(struct scsi_cmnd *cmd, return 0; } -static void stex_unmap_sg(struct st_hba *hba, struct scsi_cmnd *cmd) -{ - if (cmd->sc_data_direction != DMA_NONE) { - if (cmd->use_sg) - pci_unmap_sg(hba->pdev, cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - else - pci_unmap_single(hba->pdev, cmd->SCp.dma_handle, - cmd->request_bufflen, cmd->sc_data_direction); - } -} - static void stex_scsi_done(struct st_ccb *ccb) { struct scsi_cmnd *cmd = ccb->cmd; @@ -756,7 +719,7 @@ static void stex_ys_commands(struct st_h if (ccb->cmd->cmnd[0] == MGT_CMD && resp->scsi_status != SAM_STAT_CHECK_CONDITION) { - ccb->cmd->request_bufflen = + scsi_bufflen(ccb->cmd) = le32_to_cpu(*(__le32 *)&resp->variable[0]); return; } @@ -855,7 +818,7 @@ static void stex_mu_intr(struct st_hba * ccb->cmd->cmnd[1] == PASSTHRU_GET_ADAPTER)) stex_controller_info(hba, ccb); - stex_unmap_sg(hba, ccb->cmd); + scsi_dma_unmap(ccb->cmd); stex_scsi_done(ccb); hba->out_req_cnt--; } else if (ccb->req_type & PASSTHRU_REQ_TYPE) { @@ -1028,7 +991,7 @@ static int stex_abort(struct scsi_cmnd * } fail_out: - stex_unmap_sg(hba, cmd); + scsi_dma_unmap(cmd); hba->wait_ccb->req = NULL; /* nullify the req's future return */ hba->wait_ccb = NULL; result = FAILED; diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index 2ca9505..92bfaea 100644 --- a/drivers/scsi/sym53c416.c +++ b/drivers/scsi/sym53c416.c @@ -332,8 +332,7 @@ static irqreturn_t sym53c416_intr_handle int i; unsigned long flags = 0; unsigned char status_reg, pio_int_reg, int_reg; - struct scatterlist *sglist; - unsigned int sgcount; + struct scatterlist *sg; unsigned int tot_trans = 0; /* We search the base address of the host adapter which caused the interrupt */ @@ -429,19 +428,15 @@ static irqreturn_t sym53c416_intr_handle { current_command->SCp.phase = data_out; outb(FLUSH_FIFO, base + COMMAND_REG); - sym53c416_set_transfer_counter(base, current_command->request_bufflen); + sym53c416_set_transfer_counter(base, + scsi_bufflen(current_command)); outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG); - if(!current_command->use_sg) - tot_trans = sym53c416_write(base, current_command->request_buffer, current_command->request_bufflen); - else - { - sgcount = current_command->use_sg; - sglist = current_command->request_buffer; - while(sgcount--) - { - tot_trans += sym53c416_write(base, SG_ADDRESS(sglist), sglist->length); - sglist++; - } + + scsi_for_each_sg(current_command, + sg, scsi_sg_count(current_command), i) { + tot_trans += sym53c416_write(base, + SG_ADDRESS(sg), + sg->length); } if(tot_trans < current_command->underflow) printk(KERN_WARNING "sym53c416: Underflow, wrote %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow); @@ -455,19 +450,16 @@ static irqreturn_t sym53c416_intr_handle { current_command->SCp.phase = data_in; outb(FLUSH_FIFO, base + COMMAND_REG); - sym53c416_set_transfer_counter(base, current_command->request_bufflen); + sym53c416_set_transfer_counter(base, + scsi_bufflen(current_command)); + outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG); - if(!current_command->use_sg) - tot_trans = sym53c416_read(base, current_command->request_buffer, current_command->request_bufflen); - else - { - sgcount = current_command->use_sg; - sglist = current_command->request_buffer; - while(sgcount--) - { - tot_trans += sym53c416_read(base, SG_ADDRESS(sglist), sglist->length); - sglist++; - } + + scsi_for_each_sg(current_command, + sg, scsi_sg_count(current_command), i) { + tot_trans += sym53c416_read(base, + SG_ADDRESS(sg), + sg->length); } if(tot_trans < current_command->underflow) printk(KERN_WARNING "sym53c416: Underflow, read %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index e7b85e8..73c5ca0 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -457,28 +457,21 @@ static int dc390_pci_map (struct dc390_s error = 1; DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle)); /* Map SG list */ - } else if (pcmd->use_sg) { - pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer; - pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg, - pcmd->sc_data_direction); + } else if (scsi_sg_count(pcmd)) { + int nseg; + + nseg = scsi_dma_map(pcmd); + + pSRB->pSegmentList = scsi_sglist(pcmd); + pSRB->SGcount = nseg; + /* TODO: error handling */ - if (!pSRB->SGcount) + if (nseg < 0) error = 1; DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ - __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg)); + __FUNCTION__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd))); /* Map single segment */ - } else if (pcmd->request_buffer && pcmd->request_bufflen) { - pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen); - pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, - pcmd->sc_data_direction); - cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); - - /* TODO: error handling */ - if (pSRB->SGcount != 1) - error = 1; - DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle)); - /* No mapping !? */ - } else + } else pSRB->SGcount = 0; return error; @@ -494,12 +487,10 @@ static void dc390_pci_unmap (struct dc39 if (pSRB->SRBFlag) { pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); - } else if (pcmd->use_sg) { - pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction); - DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg)); - } else if (pcmd->request_buffer && pcmd->request_bufflen) { - pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction); - DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); + } else { + scsi_dma_unmap(pcmd); + DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", + __FUNCTION__, scsi_sglist(pcmd), scsi_sg_count(pcmd))); } } @@ -1153,9 +1144,9 @@ dc390_restore_ptr (struct dc390_acb* pAC struct scatterlist *psgl; pSRB->TotalXferredLen = 0; pSRB->SGIndex = 0; - if (pcmd->use_sg) { + if (scsi_sg_count(pcmd)) { size_t saved; - pSRB->pSegmentList = (struct scatterlist *)pcmd->request_buffer; + pSRB->pSegmentList = scsi_sglist(pcmd); psgl = pSRB->pSegmentList; //dc390_pci_sync(pSRB); @@ -1179,12 +1170,6 @@ dc390_restore_ptr (struct dc390_acb* pAC printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n", pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr); - } else if(pcmd->request_buffer) { - //dc390_pci_sync(pSRB); - - sg_dma_len(&pSRB->Segmentx) = pcmd->request_bufflen - pSRB->Saved_Ptr; - pSRB->SGcount = 1; - pSRB->pSegmentList = (struct scatterlist *) &pSRB->Segmentx; } else { pSRB->SGcount = 0; printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n"); @@ -1612,7 +1597,7 @@ dc390_Reselect( struct dc390_acb* pACB ) if( !( pACB->scan_devices ) ) { struct scsi_cmnd *pcmd = pSRB->pcmd; - pcmd->resid = pcmd->request_bufflen; + scsi_set_resid(pcmd, scsi_bufflen(pcmd)); SET_RES_DID(pcmd->result, DID_SOFT_ERROR); dc390_Going_remove(pDCB, pSRB); dc390_Free_insert(pACB, pSRB); @@ -1695,7 +1680,7 @@ dc390_RequestSense(struct dc390_acb* pAC pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN)); pSRB->SRBFlag |= AUTO_REQSENSE; - pSRB->SavedSGCount = pcmd->use_sg; + pSRB->SavedSGCount = scsi_sg_count(pcmd); pSRB->SavedTotXLen = pSRB->TotalXferredLen; pSRB->AdaptStatus = 0; pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */ @@ -1743,7 +1728,7 @@ dc390_SRBdone( struct dc390_acb* pACB, s (u32) pcmd->result, (u32) pSRB->TotalXferredLen)); } else { SET_RES_DRV(pcmd->result, DRIVER_SENSE); - pcmd->use_sg = pSRB->SavedSGCount; + scsi_sg_count(pcmd) = pSRB->SavedSGCount; //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8); DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); pSRB->TotalXferredLen = 0; @@ -1765,7 +1750,7 @@ dc390_SRBdone( struct dc390_acb* pACB, s else if( status_byte(status) == QUEUE_FULL ) { scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1); - pcmd->use_sg = pSRB->SavedSGCount; + scsi_sg_count(pcmd) = pSRB->SavedSGCount; DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); pSRB->TotalXferredLen = 0; SET_RES_DID(pcmd->result, DID_SOFT_ERROR); @@ -1816,7 +1801,7 @@ dc390_SRBdone( struct dc390_acb* pACB, s } cmd_done: - pcmd->resid = pcmd->request_bufflen - pSRB->TotalXferredLen; + scsi_set_resid(pcmd, scsi_bufflen(pcmd) - pSRB->TotalXferredLen); dc390_Going_remove (pDCB, pSRB); /* Add to free list */ diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index 3de08a1..9e8232a 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -1111,7 +1111,7 @@ #endif static void map_dma(unsigned int i, unsigned int j) { unsigned int data_len = 0; unsigned int k, count, pci_dir; - struct scatterlist *sgpnt; + struct scatterlist *sg; struct mscp *cpp; struct scsi_cmnd *SCpnt; @@ -1124,33 +1124,28 @@ static void map_dma(unsigned int i, unsi cpp->sense_len = sizeof SCpnt->sense_buffer; - if (!SCpnt->use_sg) { - - /* If we get here with PCI_DMA_NONE, pci_map_single triggers a BUG() */ - if (!SCpnt->request_bufflen) pci_dir = PCI_DMA_BIDIRECTIONAL; - - if (SCpnt->request_buffer) - cpp->data_address = H2DEV(pci_map_single(HD(j)->pdev, - SCpnt->request_buffer, SCpnt->request_bufflen, pci_dir)); - - cpp->data_len = H2DEV(SCpnt->request_bufflen); - return; - } - - sgpnt = (struct scatterlist *) SCpnt->request_buffer; - count = pci_map_sg(HD(j)->pdev, sgpnt, SCpnt->use_sg, pci_dir); - - for (k = 0; k < count; k++) { - cpp->sglist[k].address = H2DEV(sg_dma_address(&sgpnt[k])); - cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(&sgpnt[k])); - data_len += sgpnt[k].length; - } - - cpp->sg = TRUE; - cpp->use_sg = SCpnt->use_sg; - cpp->data_address = H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist, - SCpnt->use_sg * sizeof(struct sg_list), pci_dir)); - cpp->data_len = H2DEV(data_len); + if (scsi_bufflen(SCpnt)) { + count = scsi_dma_map(SCpnt); + BUG_ON(count < 0); + + scsi_for_each_sg(SCpnt, sg, count, k) { + cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); + cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); + data_len += sg->length; + } + + cpp->sg = TRUE; + cpp->use_sg = scsi_sg_count(SCpnt); + cpp->data_address = + H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist, + cpp->use_sg * sizeof(struct sg_list), + pci_dir)); + cpp->data_len = H2DEV(data_len); + + } else { + pci_dir = PCI_DMA_BIDIRECTIONAL; + cpp->data_len = H2DEV(scsi_bufflen(SCpnt)); + } } static void unmap_dma(unsigned int i, unsigned int j) { @@ -1165,8 +1160,7 @@ static void unmap_dma(unsigned int i, un pci_unmap_single(HD(j)->pdev, DEV2H(cpp->sense_addr), DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - if (SCpnt->use_sg) - pci_unmap_sg(HD(j)->pdev, SCpnt->request_buffer, SCpnt->use_sg, pci_dir); + scsi_dma_unmap(SCpnt); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; @@ -1187,9 +1181,9 @@ static void sync_dma(unsigned int i, uns pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->sense_addr), DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - if (SCpnt->use_sg) - pci_dma_sync_sg_for_cpu(HD(j)->pdev, SCpnt->request_buffer, - SCpnt->use_sg, pci_dir); + if (scsi_sg_count(SCpnt)) + pci_dma_sync_sg_for_cpu(HD(j)->pdev, scsi_sglist(SCpnt), + scsi_sg_count(SCpnt), pci_dir); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c index 56906ab..c08235d 100644 --- a/drivers/scsi/ultrastor.c +++ b/drivers/scsi/ultrastor.c @@ -675,16 +675,15 @@ static const char *ultrastor_info(struct static inline void build_sg_list(struct mscp *mscp, struct scsi_cmnd *SCpnt) { - struct scatterlist *sl; + struct scatterlist *sg; long transfer_length = 0; int i, max; - sl = (struct scatterlist *) SCpnt->request_buffer; - max = SCpnt->use_sg; - for (i = 0; i < max; i++) { - mscp->sglist[i].address = isa_page_to_bus(sl[i].page) + sl[i].offset; - mscp->sglist[i].num_bytes = sl[i].length; - transfer_length += sl[i].length; + max = scsi_sg_count(SCpnt); + scsi_for_each_sg(SCpnt, sg, max, i) { + mscp->sglist[i].address = isa_page_to_bus(sg->page) + sg->offset; + mscp->sglist[i].num_bytes = sg->length; + transfer_length += sg->length; } mscp->number_of_sg_list = max; mscp->transfer_data = isa_virt_to_bus(mscp->sglist); @@ -730,15 +729,15 @@ #endif my_mscp->target_id = SCpnt->device->id; my_mscp->ch_no = 0; my_mscp->lun = SCpnt->device->lun; - if (SCpnt->use_sg) { + if (scsi_sg_count(SCpnt)) { /* Set scatter/gather flag in SCSI command packet */ my_mscp->sg = TRUE; build_sg_list(my_mscp, SCpnt); } else { /* Unset scatter/gather flag in SCSI command packet */ my_mscp->sg = FALSE; - my_mscp->transfer_data = isa_virt_to_bus(SCpnt->request_buffer); - my_mscp->transfer_data_length = SCpnt->request_bufflen; + my_mscp->transfer_data = isa_virt_to_bus(scsi_sglist(SCpnt)); + my_mscp->transfer_data_length = scsi_bufflen(SCpnt); } my_mscp->command_link = 0; /*???*/ my_mscp->scsi_command_link_id = 0; /*???*/ diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 30be765..d6fd425 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1091,6 +1091,7 @@ static int wd7000_queuecommand(struct sc unchar *cdb = (unchar *) SCpnt->cmnd; unchar idlun; short cdblen; + int nseg; Adapter *host = (Adapter *) SCpnt->device->host->hostdata; cdblen = SCpnt->cmd_len; @@ -1106,28 +1107,29 @@ static int wd7000_queuecommand(struct sc SCpnt->host_scribble = (unchar *) scb; scb->host = host; - if (SCpnt->use_sg) { - struct scatterlist *sg = (struct scatterlist *) SCpnt->request_buffer; + nseg = scsi_sg_count(SCpnt); + if (nseg) { + struct scatterlist *sg; unsigned i; if (SCpnt->device->host->sg_tablesize == SG_NONE) { panic("wd7000_queuecommand: scatter/gather not supported.\n"); } - dprintk("Using scatter/gather with %d elements.\n", SCpnt->use_sg); + dprintk("Using scatter/gather with %d elements.\n", nseg); sgb = scb->sgb; scb->op = 1; any2scsi(scb->dataptr, (int) sgb); - any2scsi(scb->maxlen, SCpnt->use_sg * sizeof(Sgb)); + any2scsi(scb->maxlen, nseg * sizeof(Sgb)); - for (i = 0; i < SCpnt->use_sg; i++) { - any2scsi(sgb[i].ptr, isa_page_to_bus(sg[i].page) + sg[i].offset); - any2scsi(sgb[i].len, sg[i].length); + scsi_for_each_sg(SCpnt, sg, nseg, i) { + any2scsi(sgb[i].ptr, isa_page_to_bus(sg->page) + sg->offset); + any2scsi(sgb[i].len, sg->length); } } else { scb->op = 0; - any2scsi(scb->dataptr, isa_virt_to_bus(SCpnt->request_buffer)); - any2scsi(scb->maxlen, SCpnt->request_bufflen); + any2scsi(scb->dataptr, isa_virt_to_bus(scsi_sglist(SCpnt))); + any2scsi(scb->maxlen, scsi_bufflen(SCpnt)); } /* FIXME: drop lock and yield here ? */ diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index a2e0c10..53e1705 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -135,4 +135,24 @@ extern void scsi_kunmap_atomic_sg(void * extern struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t); extern void scsi_free_sgtable(struct scatterlist *, int); +extern int scsi_dma_map(struct scsi_cmnd *cmd); +extern void scsi_dma_unmap(struct scsi_cmnd *cmd); + +#define scsi_sg_count(cmd) ((cmd)->use_sg) +#define scsi_sglist(cmd) ((struct scatterlist *)(cmd)->request_buffer) +#define scsi_bufflen(cmd) ((cmd)->request_bufflen) + +static inline void scsi_set_resid(struct scsi_cmnd *cmd, int resid) +{ + cmd->resid = resid; +} + +static inline int scsi_get_resid(struct scsi_cmnd *cmd) +{ + return cmd->resid; +} + +#define scsi_for_each_sg(cmd, sg, nseg, __i) \ + for (__i = 0, sg = scsi_sglist(cmd); __i < (nseg); __i++, (sg)++) + #endif /* _SCSI_SCSI_CMND_H */ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 68f461b..4a2e490 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -339,12 +339,6 @@ #endif enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *); /* - * suspend support - */ - int (*resume)(struct scsi_device *); - int (*suspend)(struct scsi_device *, pm_message_t state); - - /* * Name of proc directory */ char *proc_name; diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 1e79730..a0d80bc 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -1,4 +1,4 @@ -/* +/* * FiberChannel transport specific attributes exported to sysfs. * * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. @@ -19,7 +19,7 @@ * * ======== * - * Copyright (C) 2004-2005 James Smart, Emulex Corporation + * Copyright (C) 2004-2007 James Smart, Emulex Corporation * Rewrite for host, target, device, and remote port attributes, * statistics, and service functions... * @@ -62,8 +62,10 @@ enum fc_port_type { FC_PORTTYPE_NLPORT, /* (Public) Loop w/ FLPort */ FC_PORTTYPE_LPORT, /* (Private) Loop w/o FLPort */ FC_PORTTYPE_PTP, /* Point to Point w/ another NPort */ + FC_PORTTYPE_NPIV, /* VPORT based on NPIV */ }; + /* * fc_port_state: If you alter this, you also need to alter scsi_transport_fc.c * (for the ascii descriptions). @@ -83,7 +85,26 @@ enum fc_port_state { }; -/* +/* + * fc_vport_state: If you alter this, you also need to alter + * scsi_transport_fc.c (for the ascii descriptions). + */ +enum fc_vport_state { + FC_VPORT_UNKNOWN, + FC_VPORT_ACTIVE, + FC_VPORT_DISABLED, + FC_VPORT_LINKDOWN, + FC_VPORT_INITIALIZING, + FC_VPORT_NO_FABRIC_SUPP, + FC_VPORT_NO_FABRIC_RSCS, + FC_VPORT_FABRIC_LOGOUT, + FC_VPORT_FABRIC_REJ_WWN, + FC_VPORT_FAILED, +}; + + + +/* * FC Classes of Service * Note: values are not enumerated, as they can be "or'd" together * for reporting (e.g. report supported_classes). If you alter this list, @@ -96,7 +117,7 @@ #define FC_COS_CLASS3 8 #define FC_COS_CLASS4 0x10 #define FC_COS_CLASS6 0x40 -/* +/* * FC Port Speeds * Note: values are not enumerated, as they can be "or'd" together * for reporting (e.g. report supported_speeds). If you alter this list, @@ -124,16 +145,114 @@ enum fc_tgtid_binding_type { }; /* - * FC Remote Port Roles + * FC Port Roles * Note: values are not enumerated, as they can be "or'd" together * for reporting (e.g. report roles). If you alter this list, * you also need to alter scsi_transport_fc.c (for the ascii descriptions). */ -#define FC_RPORT_ROLE_UNKNOWN 0x00 -#define FC_RPORT_ROLE_FCP_TARGET 0x01 -#define FC_RPORT_ROLE_FCP_INITIATOR 0x02 -#define FC_RPORT_ROLE_IP_PORT 0x04 +#define FC_PORT_ROLE_UNKNOWN 0x00 +#define FC_PORT_ROLE_FCP_TARGET 0x01 +#define FC_PORT_ROLE_FCP_INITIATOR 0x02 +#define FC_PORT_ROLE_IP_PORT 0x04 + +/* The following are for compatibility */ +#define FC_RPORT_ROLE_UNKNOWN FC_PORT_ROLE_UNKNOWN +#define FC_RPORT_ROLE_FCP_TARGET FC_PORT_ROLE_FCP_TARGET +#define FC_RPORT_ROLE_FCP_INITIATOR FC_PORT_ROLE_FCP_INITIATOR +#define FC_RPORT_ROLE_IP_PORT FC_PORT_ROLE_IP_PORT + + +/* Macro for use in defining Virtual Port attributes */ +#define FC_VPORT_ATTR(_name,_mode,_show,_store) \ +struct class_device_attribute class_device_attr_vport_##_name = \ + __ATTR(_name,_mode,_show,_store) + + +/* + * FC Virtual Port Attributes + * + * This structure exists for each FC port is a virtual FC port. Virtual + * ports share the physical link with the Physical port. Each virtual + * ports has a unique presense on the SAN, and may be instantiated via + * NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a + * unique presense, each vport has it's own view of the fabric, + * authentication priviledge, and priorities. + * + * A virtual port may support 1 or more FC4 roles. Typically it is a + * FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC + * roles. FC port attributes for the vport will be reported on any + * fc_host class object allocated for an FCP Initiator. + * + * -- + * + * Fixed attributes are not expected to change. The driver is + * expected to set these values after receiving the fc_vport structure + * via the vport_create() call from the transport. + * The transport fully manages all get functions w/o driver interaction. + * + * Dynamic attributes are expected to change. The driver participates + * in all get/set operations via functions provided by the driver. + * + * Private attributes are transport-managed values. They are fully + * managed by the transport w/o driver interaction. + */ +#define FC_VPORT_SYMBOLIC_NAMELEN 64 +struct fc_vport { + /* Fixed Attributes */ + + /* Dynamic Attributes */ + + /* Private (Transport-managed) Attributes */ + enum fc_vport_state vport_state; + enum fc_vport_state vport_last_state; + u64 node_name; + u64 port_name; + u32 roles; + u32 vport_id; /* Admin Identifier for the vport */ + enum fc_port_type vport_type; + char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN]; + + /* exported data */ + void *dd_data; /* Used for driver-specific storage */ + + /* internal data */ + struct Scsi_Host *shost; /* Physical Port Parent */ + unsigned int channel; + u32 number; + u8 flags; + struct list_head peers; + struct device dev; + struct work_struct vport_delete_work; +} __attribute__((aligned(sizeof(unsigned long)))); + +/* bit field values for struct fc_vport "flags" field: */ +#define FC_VPORT_CREATING 0x01 +#define FC_VPORT_DELETING 0x02 +#define FC_VPORT_DELETED 0x04 +#define FC_VPORT_DEL 0x06 /* Any DELETE state */ + +#define dev_to_vport(d) \ + container_of(d, struct fc_vport, dev) +#define transport_class_to_vport(classdev) \ + dev_to_vport(classdev->dev) +#define vport_to_shost(v) \ + (v->shost) +#define vport_to_shost_channel(v) \ + (v->channel) +#define vport_to_parent(v) \ + (v->dev.parent) + + +/* Error return codes for vport_create() callback */ +#define VPCERR_UNSUPPORTED -ENOSYS /* no driver/adapter + support */ +#define VPCERR_BAD_WWN -ENOTUNIQ /* driver validation + of WWNs failed */ +#define VPCERR_NO_FABRIC_SUPP -EOPNOTSUPP /* Fabric connection + is loop or the + Fabric Port does + not support NPIV */ /* * fc_rport_identifiers: This set of data contains all elements @@ -149,6 +268,7 @@ struct fc_rport_identifiers { u32 roles; }; + /* Macro for use in defining Remote Port attributes */ #define FC_RPORT_ATTR(_name,_mode,_show,_store) \ struct class_device_attribute class_device_attr_rport_##_name = \ @@ -278,7 +398,7 @@ struct fc_host_statistics { u64 prim_seq_protocol_err_count; u64 invalid_tx_word_count; u64 invalid_crc_count; - + /* fc4 statistics (only FCP supported currently) */ u64 fcp_input_requests; u64 fcp_output_requests; @@ -343,6 +463,7 @@ struct fc_host_attrs { u8 supported_fc4s[FC_FC4_LIST_SIZE]; u32 supported_speeds; u32 maxframe_size; + u16 max_npiv_vports; char serial_number[FC_SERIAL_NUMBER_SIZE]; /* Dynamic Attributes */ @@ -361,8 +482,11 @@ struct fc_host_attrs { /* internal data */ struct list_head rports; struct list_head rport_bindings; + struct list_head vports; u32 next_rport_number; u32 next_target_id; + u32 next_vport_number; + u16 npiv_vports_inuse; /* work queues for rport state manipulation */ char work_q_name[KOBJ_NAME_LEN]; @@ -388,6 +512,8 @@ #define fc_host_supported_speeds(x) \ (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds) #define fc_host_maxframe_size(x) \ (((struct fc_host_attrs *)(x)->shost_data)->maxframe_size) +#define fc_host_max_npiv_vports(x) \ + (((struct fc_host_attrs *)(x)->shost_data)->max_npiv_vports) #define fc_host_serial_number(x) \ (((struct fc_host_attrs *)(x)->shost_data)->serial_number) #define fc_host_port_id(x) \ @@ -412,10 +538,16 @@ #define fc_host_rports(x) \ (((struct fc_host_attrs *)(x)->shost_data)->rports) #define fc_host_rport_bindings(x) \ (((struct fc_host_attrs *)(x)->shost_data)->rport_bindings) +#define fc_host_vports(x) \ + (((struct fc_host_attrs *)(x)->shost_data)->vports) #define fc_host_next_rport_number(x) \ (((struct fc_host_attrs *)(x)->shost_data)->next_rport_number) #define fc_host_next_target_id(x) \ (((struct fc_host_attrs *)(x)->shost_data)->next_target_id) +#define fc_host_next_vport_number(x) \ + (((struct fc_host_attrs *)(x)->shost_data)->next_vport_number) +#define fc_host_npiv_vports_inuse(x) \ + (((struct fc_host_attrs *)(x)->shost_data)->npiv_vports_inuse) #define fc_host_work_q_name(x) \ (((struct fc_host_attrs *)(x)->shost_data)->work_q_name) #define fc_host_work_q(x) \ @@ -452,14 +584,20 @@ struct fc_function_template { void (*dev_loss_tmo_callbk)(struct fc_rport *); void (*terminate_rport_io)(struct fc_rport *); + void (*set_vport_symbolic_name)(struct fc_vport *); + int (*vport_create)(struct fc_vport *, bool); + int (*vport_disable)(struct fc_vport *, bool); + int (*vport_delete)(struct fc_vport *); + /* allocation lengths for host-specific data */ u32 dd_fcrport_size; + u32 dd_fcvport_size; - /* + /* * The driver sets these to tell the transport class it * wants the attributes displayed in sysfs. If the show_ flag * is not set, the attribute will be private to the transport - * class + * class */ /* remote port fixed attributes */ @@ -512,7 +650,7 @@ fc_remote_port_chkready(struct fc_rport switch (rport->port_state) { case FC_PORTSTATE_ONLINE: - if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) + if (rport->roles & FC_PORT_ROLE_FCP_TARGET) result = 0; else if (rport->flags & FC_RPORT_DEVLOSS_PENDING) result = DID_IMM_RETRY << 16; @@ -549,6 +687,27 @@ static inline void u64_to_wwn(u64 inm, u wwn[7] = inm & 0xff; } +/** + * fc_vport_set_state() - called to set a vport's state. Saves the old state, + * excepting the transitory states of initializing and sending the ELS + * traffic to instantiate the vport on the link. + * + * Assumes the driver has surrounded this with the proper locking to ensure + * a coherent state change. + * + * @vport: virtual port whose state is changing + * @new_state: new state + **/ +static inline void +fc_vport_set_state(struct fc_vport *vport, enum fc_vport_state new_state) +{ + if ((new_state != FC_VPORT_UNKNOWN) && + (new_state != FC_VPORT_INITIALIZING)) + vport->vport_last_state = vport->vport_state; + vport->vport_state = new_state; +} + + struct scsi_transport_template *fc_attach_transport( struct fc_function_template *); void fc_release_transport(struct scsi_transport_template *); @@ -567,5 +726,6 @@ void fc_host_post_vendor_event(struct Sc * be sure to read the Vendor Type and ID formatting requirements * specified in scsi_netlink.h */ +int fc_vport_terminate(struct fc_vport *vport); #endif /* SCSI_TRANSPORT_FC_H */