diff options
| author |   Iyappan Subramanian <isubramanian@apm.com> | 2016-12-01 16:41:40 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-12-03 15:46:50 -0500 |
| commit | 350b4e33b89378c5e5572a76c5e600999ad4d463 (patch) | |
| tree | 4b69bb8f1f215ddfd2ea4d04d3235df93dc279d9 /drivers/net/ethernet/apm/xgene/xgene_enet_main.c | |
| parent | drivers: net: xgene: Add support for Jumbo frame (diff) | |
| download | linux-dev-350b4e33b89378c5e5572a76c5e600999ad4d463.tar.xz linux-dev-350b4e33b89378c5e5572a76c5e600999ad4d463.zip | |
drivers: net: xgene: Add change_mtu function
This patch implements ndo_change_mtu() callback function that
enables mtu change.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/apm/xgene/xgene_enet_main.c')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 698df275d869..6c7eea8b36af 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -1500,12 +1500,31 @@ static int xgene_enet_set_mac_address(struct net_device *ndev, void *addr) return ret; } +static int xgene_change_mtu(struct net_device *ndev, int new_mtu) +{ + struct xgene_enet_pdata *pdata = netdev_priv(ndev); + int frame_size; + + if (!netif_running(ndev)) + return 0; + + frame_size = (new_mtu > ETH_DATA_LEN) ? (new_mtu + 18) : 0x600; + + xgene_enet_close(ndev); + ndev->mtu = new_mtu; + pdata->mac_ops->set_framesize(pdata, frame_size); + xgene_enet_open(ndev); + + return 0; +} + static const struct net_device_ops xgene_ndev_ops = { .ndo_open = xgene_enet_open, .ndo_stop = xgene_enet_close, .ndo_start_xmit = xgene_enet_start_xmit, .ndo_tx_timeout = xgene_enet_timeout, .ndo_get_stats64 = xgene_enet_get_stats64, + .ndo_change_mtu = xgene_change_mtu, .ndo_set_mac_address = xgene_enet_set_mac_address, }; @@ -1832,6 +1851,7 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata) buf_pool->id, ring_id); } + ndev->max_mtu = XGENE_ENET_MAX_MTU; pdata->phy_speed = SPEED_UNKNOWN; pdata->mac_ops->init(pdata); |