diff options
| author | Jack Morgenstein <jackm@dev.mellanox.co.il> | 2015-10-27 16:36:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-28 04:27:09 +0100 |
| commit | 092bf0fc80f5fb7928244ad63d8a2a8df8a72a3e (patch) | |
| tree | 030ae6e63221928815d8bdc87cd95e869c2782cc /drivers | |
| parent | vhost: fix performance on LE hosts (diff) | |
| download | linux-092bf0fc80f5fb7928244ad63d8a2a8df8a72a3e.tar.xz linux-092bf0fc80f5fb7928244ad63d8a2a8df8a72a3e.zip | |
net/mlx4_en: Explicitly set no vlan tags in WQE ctrl segment when no vlan is present
We do not set the ins_vlan field to zero when no vlan id is present in the packet.
Since WQEs in the TX ring are not zeroed out between uses, this oversight
could result in having vlan flags present in the WQE ctrl segment when no
vlan is preset.
Fixes: e38af4faf01d ('net/mlx4_en: Add support for hardware accelerated 802.1ad vlan')
Reported-by: Gideon Naim <gideonn@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_tx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 494e7762fdb1..4421bf5463f6 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -964,6 +964,8 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_SVLAN; else if (vlan_proto == ETH_P_8021Q) tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_CVLAN; + else + tx_desc->ctrl.ins_vlan = 0; tx_desc->ctrl.fence_size = real_size; |