Subject: [PATCH 07/08] ipg: per-device max_rxframe_size From: Pekka Enberg Add a ->max_rxframe member to struct ipg_nic_private and convert the users of IPG_MAX_RXFRAME_SIZE to use it instead to enable per-device jumbo frame configuration. Tested-by: Andrew Savchenko Signed-off-by: Pekka Enberg --- drivers/net/ipg.c | 8 ++++++-- drivers/net/ipg.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-) Index: linux-2.6/drivers/net/ipg.c =================================================================== --- linux-2.6.orig/drivers/net/ipg.c +++ linux-2.6/drivers/net/ipg.c @@ -631,6 +631,7 @@ static void ipg_nic_set_multicast_list(s static int ipg_io_config(struct net_device *dev) { + struct ipg_nic_private *sp = netdev_priv(dev); void __iomem *ioaddr = ipg_ioaddr(dev); u32 origmacctrl; u32 restoremacctrl; @@ -670,7 +671,7 @@ static int ipg_io_config(struct net_devi /* Set RECEIVEMODE register. */ ipg_nic_set_multicast_list(dev); - ipg_w16(IPG_MAX_RXFRAME_SIZE, MAX_FRAME_SIZE); + ipg_w16(sp->max_rxframe_size, MAX_FRAME_SIZE); ipg_w8(IPG_RXDMAPOLLPERIOD_VALUE, RX_DMA_POLL_PERIOD); ipg_w8(IPG_RXDMAURGENTTHRESH_VALUE, RX_DMA_URGENT_THRESH); @@ -2114,6 +2115,8 @@ static int ipg_ioctl(struct net_device * static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu) { + struct ipg_nic_private *sp = netdev_priv(dev); + /* Function to accomodate changes to Maximum Transfer Unit * (or MTU) of IPG NIC. Cannot use default function since * the default will not allow for MTU > 1500 bytes. @@ -2125,7 +2128,7 @@ static int ipg_nic_change_mtu(struct net * byte payload, 4 byte FCS) and IPG_MAX_RXFRAME_SIZE, which * corresponds to the MAXFRAMESIZE register in the IPG. */ - if ((new_mtu < 68) || (new_mtu > IPG_MAX_RXFRAME_SIZE)) + if ((new_mtu < 68) || (new_mtu > sp->max_rxframe_size)) return -EINVAL; dev->mtu = new_mtu; @@ -2238,6 +2241,7 @@ static int __devinit ipg_probe(struct pc sp->is_jumbo = IPG_JUMBO; sp->rxfrag_size = IPG_RXFRAG_SIZE; sp->rxsupport_size = IPG_RXSUPPORT_SIZE; + sp->max_rxframe_size = IPG_MAX_RXFRAME_SIZE; /* Declare IPG NIC functions for Ethernet device methods. */ Index: linux-2.6/drivers/net/ipg.h =================================================================== --- linux-2.6.orig/drivers/net/ipg.h +++ linux-2.6/drivers/net/ipg.h @@ -798,6 +798,7 @@ struct ipg_nic_private { struct ipg_jumbo jumbo; unsigned long rxfrag_size; unsigned long rxsupport_size; + unsigned long max_rxframe_size; unsigned int rx_buf_sz; struct pci_dev *pdev; struct net_device *dev;