diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bgmac.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 1bb07a5d82c9..98ec1b8a7d8e 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -1248,6 +1248,14 @@ static int bgmac_set_mac_address(struct net_device *net_dev, void *addr) return 0; } +static int bgmac_change_mtu(struct net_device *net_dev, int mtu) +{ + struct bgmac *bgmac = netdev_priv(net_dev); + + bgmac_write(bgmac, BGMAC_RXMAX_LENGTH, 32 + mtu); + return 0; +} + static const struct net_device_ops bgmac_netdev_ops = { .ndo_open = bgmac_open, .ndo_stop = bgmac_stop, @@ -1256,6 +1264,7 @@ static const struct net_device_ops bgmac_netdev_ops = { .ndo_set_mac_address = bgmac_set_mac_address, .ndo_validate_addr = eth_validate_addr, .ndo_do_ioctl = phy_do_ioctl_running, + .ndo_change_mtu = bgmac_change_mtu, }; /************************************************** @@ -1530,6 +1539,9 @@ int bgmac_enet_probe(struct bgmac *bgmac) net_dev->hw_features = net_dev->features; net_dev->vlan_features = net_dev->features; + /* Omit FCS from max MTU size */ + net_dev->max_mtu = BGMAC_RX_MAX_FRAME_SIZE - ETH_FCS_LEN; + err = register_netdev(bgmac->net_dev); if (err) { dev_err(bgmac->dev, "Cannot register net device\n"); |