diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/sh_eth.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 2d686ccf971b..d2dc0a8ef305 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1915,16 +1915,15 @@ static int sh_eth_get_link_ksettings(struct net_device *ndev, { struct sh_eth_private *mdp = netdev_priv(ndev); unsigned long flags; - int ret; if (!ndev->phydev) return -ENODEV; spin_lock_irqsave(&mdp->lock, flags); - ret = phy_ethtool_ksettings_get(ndev->phydev, cmd); + phy_ethtool_ksettings_get(ndev->phydev, cmd); spin_unlock_irqrestore(&mdp->lock, flags); - return ret; + return 0; } static int sh_eth_set_link_ksettings(struct net_device *ndev, @@ -2558,6 +2557,17 @@ static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd) return phy_mii_ioctl(phydev, rq, cmd); } +static int sh_eth_change_mtu(struct net_device *ndev, int new_mtu) +{ + if (netif_running(ndev)) + return -EBUSY; + + ndev->mtu = new_mtu; + netdev_update_features(ndev); + + return 0; +} + /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */ static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp, int entry) @@ -3029,6 +3039,7 @@ static const struct net_device_ops sh_eth_netdev_ops = { .ndo_set_rx_mode = sh_eth_set_rx_mode, .ndo_tx_timeout = sh_eth_tx_timeout, .ndo_do_ioctl = sh_eth_do_ioctl, + .ndo_change_mtu = sh_eth_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, }; @@ -3043,6 +3054,7 @@ static const struct net_device_ops sh_eth_netdev_ops_tsu = { .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid, .ndo_tx_timeout = sh_eth_tx_timeout, .ndo_do_ioctl = sh_eth_do_ioctl, + .ndo_change_mtu = sh_eth_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, }; @@ -3171,6 +3183,13 @@ static int sh_eth_drv_probe(struct platform_device *pdev) } sh_eth_set_default_cpu_data(mdp->cd); + /* User's manual states max MTU should be 2048 but due to the + * alignment calculations in sh_eth_ring_init() the practical + * MTU is a bit less. Maybe this can be optimized some more. + */ + ndev->max_mtu = 2000 - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); + ndev->min_mtu = ETH_MIN_MTU; + /* set function */ if (mdp->cd->tsu) ndev->netdev_ops = &sh_eth_netdev_ops_tsu; |