net/mlx5e: allow TSO on VXLAN over VLAN topologies

since mlx5 hardware can segment correctly TSO packets on VXLAN over VLAN
topologies, CPU usage can improve significantly if we enable tunnel
offloads in dev->vlan_features, like it was done in the past with other
NIC drivers (e.g. mlx4, be2net and ixgbe).

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 78737fd42616df0f326ccf3582324bc182d20e13..87267c18ff8c651ec31191dab4bbff5ad15a4515 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4878,6 +4878,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
                netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL |
                                           NETIF_F_GSO_UDP_TUNNEL_CSUM;
                netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
+               netdev->vlan_features |= NETIF_F_GSO_UDP_TUNNEL |
+                                        NETIF_F_GSO_UDP_TUNNEL_CSUM;
        }
 
        if (mlx5e_tunnel_proto_supported(mdev, IPPROTO_GRE)) {