net/mlx5e: Add support for UDP tunnel segmentation with outer checksum offload

This patch assumes that the mlx5 hardware will ignore existing IPv4/v6
header fields for length and checksum as well as the length and checksum
fields for outer UDP headers.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 7dfb73a..23883be 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2802,13 +2802,18 @@ static void mlx5e_build_netdev(struct net_device *netdev)
        netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
        if (mlx5e_vxlan_allowed(mdev)) {
-               netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL;
+               netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL |
+                                          NETIF_F_GSO_UDP_TUNNEL_CSUM |
+                                          NETIF_F_GSO_PARTIAL;
                netdev->hw_enc_features |= NETIF_F_IP_CSUM;
                netdev->hw_enc_features |= NETIF_F_RXCSUM;
                netdev->hw_enc_features |= NETIF_F_TSO;
                netdev->hw_enc_features |= NETIF_F_TSO6;
                netdev->hw_enc_features |= NETIF_F_RXHASH;
                netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
+               netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
+                                          NETIF_F_GSO_PARTIAL;
+               netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
        }
 
        mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);