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net/ucc_geth: allow to set mac address on running device

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Inspired by the patch for 8139too (bda6a15a).

Currently we can't set mac address on a running ucc_geth device.
But this is needed when you use this device as a bonding slave in
bonding device in balance-alb mode. So add this feature for ucc_geth
device.

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kevin Hao 2009-05-26 20:49:03 -07:00 committed by David S. Miller
parent 9c5cd67080
commit 3d6593e9cc
1 changed files with 32 additions and 1 deletions
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33
drivers/net/ucc_geth.c
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@ -3325,6 +3325,37 @@ static void ucc_netpoll(struct net_device *dev)
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct sockaddr *addr = p;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
/*
* If device is not running, we will set mac addr register
* when opening the device.
*/
if (!netif_running(dev))
return 0;
spin_lock_irq(&ugeth->lock);
init_mac_station_addr_regs(dev->dev_addr[0],
dev->dev_addr[1],
dev->dev_addr[2],
dev->dev_addr[3],
dev->dev_addr[4],
dev->dev_addr[5],
&ugeth->ug_regs->macstnaddr1,
&ugeth->ug_regs->macstnaddr2);
spin_unlock_irq(&ugeth->lock);
return 0;
}
/* Called when something needs to use the ethernet device */
/* Returns 0 for success. */
static int ucc_geth_open(struct net_device *dev)
@ -3501,7 +3532,7 @@ static const struct net_device_ops ucc_geth_netdev_ops = {
.ndo_stop = ucc_geth_close,
.ndo_start_xmit = ucc_geth_start_xmit,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_set_mac_address = ucc_geth_set_mac_addr,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_multicast_list = ucc_geth_set_multi,
.ndo_tx_timeout = ucc_geth_timeout,