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Commit a547224d authored by Alexander Duyck's avatar Alexander Duyck Committed by David S. Miller
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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: default avatarAlexander Duyck <aduyck@mirantis.com>
Reviewed-by: default avatarTariq Toukan <tariqt@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 17471c7b

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

+8 −3
Original line number Diff line number Diff line
@@ -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))

	    (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;

}