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net/mlx4_en: Don't use vlan tag value as an indication for vlan presence 

The vlan tag can be zero. This is why it can't serve as an indication
that packet requires VLAN header in the TX flow.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Moni Shoua 2012-10-25 01:12:48 +00:00 committed by David S. Miller
parent 7208ca3007
commit 2b39a06198
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx4/en_tx.c
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@ -711,7 +711,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
if (bounce)
tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tx_tag_present(skb)) {
*(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
op_own |= htonl((bf_index & 0xffff) << 8);
/* Ensure new descirptor hits memory