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mlx4e: Do not attempt to offload VXLAN ports that are unrecognized 

The mlx4e driver does not support more than one port for VXLAN offload.  As
such expecting the hardware to offload other ports is invalid since it
appears the parsing logic is used to perform Tx checksum and segmentation
offloads.  Use the vxlan_port number to determine in which cases we can
apply the offload and in which cases we can not.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2016-06-15 14:42:11 -07:00 committed by David S. Miller
parent 17471c7ba5
commit a547224dce
1 changed files with 8 additions and 3 deletions
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11
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
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@ -2447,9 +2447,14 @@ static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
* strip that feature if this is an IPv6 encapsulated frame.
*/
if (skb->encapsulation &&
(skb->ip_summed == CHECKSUM_PARTIAL) &&
(ip_hdr(skb)->version != 4))
features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
(skb->ip_summed == CHECKSUM_PARTIAL)) {
struct mlx4_en_priv *priv = netdev_priv(dev);
if (!priv->vxlan_port ||
(ip_hdr(skb)->version != 4) ||
(udp_hdr(skb)->dest != priv->vxlan_port))
features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
}
return features;
}