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net/mlx4_en: Change min MTU size to ETH_MIN_MTU

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NIC driver minimal MTU size shall be set to ETH_MIN_MTU, as defined in
the RFC791 and in the network stack. Remove old mlx4_en only define for
it, which was set to wrong value.

Fixes: b80f71f5816f ("ethernet/mellanox: use core min/max MTU checking")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eran Ben Elisha 2018-12-02 14:34:36 +02:00 committed by David S. Miller
parent bf29e9e9b6
commit 24be19e477
2 changed files with 2 additions and 3 deletions
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4
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -3493,8 +3493,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
} }
/* MTU range: 46 - hw-specific max */ /* MTU range: 68 - hw-specific max */
dev->min_mtu = MLX4_EN_MIN_MTU; dev->min_mtu = ETH_MIN_MTU;
dev->max_mtu = priv->max_mtu; dev->max_mtu = priv->max_mtu;
mdev->pndev[port] = dev; mdev->pndev[port] = dev;

1
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -161,7 +161,6 @@
#define MLX4_SELFTEST_LB_MIN_MTU (MLX4_LOOPBACK_TEST_PAYLOAD + NET_IP_ALIGN + \ #define MLX4_SELFTEST_LB_MIN_MTU (MLX4_LOOPBACK_TEST_PAYLOAD + NET_IP_ALIGN + \
ETH_HLEN + PREAMBLE_LEN) ETH_HLEN + PREAMBLE_LEN)
#define MLX4_EN_MIN_MTU 46
/* VLAN_HLEN is added twice,to support skb vlan tagged with multiple /* VLAN_HLEN is added twice,to support skb vlan tagged with multiple
* headers. (For example: ETH_P_8021Q and ETH_P_8021AD). * headers. (For example: ETH_P_8021Q and ETH_P_8021AD).
*/ */