ipg: per-device max_rxframe_size
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 <Bircoph@list.ru>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c
index 51d5f30..57395b9 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -631,6 +631,7 @@
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 @@
/* 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_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 @@
* 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 @@
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.
*/