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net: systemport: allow changing MAC address

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Hook a ndo_set_mac_address callback, update the internal Ethernet MAC in
the netdevice structure, and finally write that address down to the
UniMAC registers. If the interface is down, and most likely clock gated,
we do not update the registers but just the local copy, such that next
ndo_open() call will effectively write down the address.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2014-12-08 15:59:18 -08:00 committed by David S. Miller
parent 6271037971
commit fb3b596d3c
1 changed files with 22 additions and 0 deletions
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22
drivers/net/ethernet/broadcom/bcmsysport.c
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@ -1409,6 +1409,27 @@ static void topctrl_flush(struct bcm_sysport_priv *priv)
topctrl_writel(priv, 0, TX_FLUSH_CNTL);
}
static int bcm_sysport_change_mac(struct net_device *dev, void *p)
{
struct bcm_sysport_priv *priv = netdev_priv(dev);
struct sockaddr *addr = p;
if (!is_valid_ether_addr(addr->sa_data))
return -EINVAL;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
/* interface is disabled, changes to MAC will be reflected on next
* open call
*/
if (!netif_running(dev))
return 0;
umac_set_hw_addr(priv, dev->dev_addr);
return 0;
}
static void bcm_sysport_netif_start(struct net_device *dev)
{
struct bcm_sysport_priv *priv = netdev_priv(dev);
@ -1628,6 +1649,7 @@ static const struct net_device_ops bcm_sysport_netdev_ops = {
.ndo_stop = bcm_sysport_stop,
.ndo_set_features = bcm_sysport_set_features,
.ndo_set_rx_mode = bcm_sysport_set_rx_mode,
.ndo_set_mac_address = bcm_sysport_change_mac,
};
#define REV_FMT "v%2x.%02x"