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[SUNGEM]: Fix MAC address setting when interface is up. 

This patch implements set_mac_address for the sungem driver.  This
allows changing the mac address of the interface, even when the
interface is up.

Signed-off-by: Ruben Vandeginste <snowbender@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ruben Vandeginste 2007-03-26 14:43:49 -07:00 committed by David S. Miller
parent d562f1f8a9
commit 09c72ec8ed
1 changed files with 30 additions and 0 deletions
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30
drivers/net/sungem.c
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@ -2530,6 +2530,35 @@ static struct net_device_stats *gem_get_stats(struct net_device *dev)
return &gp->net_stats;
}
static int gem_set_mac_address(struct net_device *dev, void *addr)
{
struct sockaddr *macaddr = (struct sockaddr *) addr;
struct gem *gp = dev->priv;
unsigned char *e = &dev->dev_addr[0];
if (!is_valid_ether_addr(macaddr->sa_data))
return -EADDRNOTAVAIL;
if (!netif_running(dev) || !netif_device_present(dev)) {
/* We'll just catch it later when the
* device is up'd or resumed.
*/
memcpy(dev->dev_addr, macaddr->sa_data, dev->addr_len);
return 0;
}
mutex_lock(&gp->pm_mutex);
memcpy(dev->dev_addr, macaddr->sa_data, dev->addr_len);
if (gp->running) {
writel((e[4] << 8) | e[5], gp->regs + MAC_ADDR0);
writel((e[2] << 8) | e[3], gp->regs + MAC_ADDR1);
writel((e[0] << 8) | e[1], gp->regs + MAC_ADDR2);
}
mutex_unlock(&gp->pm_mutex);
return 0;
}
static void gem_set_multicast(struct net_device *dev)
{
struct gem *gp = dev->priv;
@ -3122,6 +3151,7 @@ static int __devinit gem_init_one(struct pci_dev *pdev,
dev->change_mtu = gem_change_mtu;
dev->irq = pdev->irq;
dev->dma = 0;
dev->set_mac_address = gem_set_mac_address;
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = gem_poll_controller;
#endif