From: Robert Hancock The sata_nv driver was missing the change_queue_depth hook in the SCSI host template which the other NCQ-capable libata drivers had. This made it impossible to change the queue depth by user request. Add this in. Signed-off-by: Robert Hancock Signed-off-by: Andrew Morton --- drivers/ata/sata_nv.c | 1 + 1 files changed, 1 insertion(+) diff -puN drivers/ata/sata_nv.c~sata_nv-allow-changing-queue-depth drivers/ata/sata_nv.c --- a/drivers/ata/sata_nv.c~sata_nv-allow-changing-queue-depth +++ a/drivers/ata/sata_nv.c @@ -420,6 +420,7 @@ static struct scsi_host_template nv_swnc .name = DRV_NAME, .ioctl = ata_scsi_ioctl, .queuecommand = ata_scsi_queuecmd, + .change_queue_depth = ata_scsi_change_queue_depth, .can_queue = ATA_MAX_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, _