[PATCH 4.19 032/109] net/mlx5e: Block offload of outer header csum for UDP tunnels

From: Sasha Levin
Date: Mon Jun 28 2021 - 10:54:25 EST


From: Aya Levin <ayal@xxxxxxxxxx>

[ Upstream commit 6d6727dddc7f93fcc155cb8d0c49c29ae0e71122 ]

The device is able to offload either the outer header csum or inner
header csum. The driver utilizes the inner csum offload. Hence, block
setting of tx-udp_tnl-csum-segmentation and set it to off[fixed].

Fixes: b49663c8fb49 ("net/mlx5e: Add support for UDP tunnel segmentation with outer checksum offload")
Signed-off-by: Aya Levin <ayal@xxxxxxxxxx>
Reviewed-by: Tariq Toukan <tariqt@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 51edc507b7b5..9003702892cd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4679,11 +4679,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
}

if (mlx5_vxlan_allowed(mdev->vxlan)) {
- netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
- NETIF_F_GSO_UDP_TUNNEL_CSUM;
- 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->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
+ netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
}

if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) {
--
2.30.2