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Commit 24be19e4 authored by Eran Ben Elisha's avatar Eran Ben Elisha Committed by David S. Miller
Browse files

net/mlx4_en: Change min MTU size to ETH_MIN_MTU 



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: b80f71f5 ("ethernet/mellanox: use core min/max MTU checking")
Signed-off-by: default avatarEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bf29e9e9

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

	}



	/* MTU range: 46 - hw-specific max */

	dev->min_mtu = MLX4_EN_MIN_MTU;

	/* MTU range: 68 - hw-specific max */

	dev->min_mtu = ETH_MIN_MTU;

	dev->max_mtu = priv->max_mtu;



	mdev->pndev[port] = dev;

drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

+0 −1
Original line number Diff line number Diff line
@@ -161,7 +161,6 @@ 
#define MLX4_SELFTEST_LB_MIN_MTU (MLX4_LOOPBACK_TEST_PAYLOAD + NET_IP_ALIGN + \

				  ETH_HLEN + PREAMBLE_LEN)



#define MLX4_EN_MIN_MTU		46

/* VLAN_HLEN is added twice,to support skb vlan tagged with multiple

 * headers. (For example: ETH_P_8021Q and ETH_P_8021AD).

 */