netdev - [net-next 09/16] net/mlx5e: Support partial GSO for tunnels over vlans

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Message-Id: <20220518064938.128220-10-saeed@kernel.org>
Date:   Tue, 17 May 2022 23:49:31 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, Gal Pressman <gal@...dia.com>,
        Aya Levin <ayal@...dia.com>, Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 09/16] net/mlx5e: Support partial GSO for tunnels over vlans

From: Gal Pressman <gal@...dia.com>

Offloading outer checksum on tunnels requires GSO partial, add it to
'vlan_features' to allow offloading tunnels over vlans.
For example, running GENEVE over vlan & ipv6 (mandatory UDP checksum)
now allows for hardware TSO instead of software segmentation in GSO
only.

Signed-off-by: Gal Pressman <gal@...dia.com>
Reviewed-by: Aya Levin <ayal@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index bf3bca79e160..29e1e1f8f49e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4812,6 +4812,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 	netdev->vlan_features    |= NETIF_F_TSO6;
 	netdev->vlan_features    |= NETIF_F_RXCSUM;
 	netdev->vlan_features    |= NETIF_F_RXHASH;
+	netdev->vlan_features    |= NETIF_F_GSO_PARTIAL;
 
 	netdev->mpls_features    |= NETIF_F_SG;
 	netdev->mpls_features    |= NETIF_F_HW_CSUM;
@@ -4877,7 +4878,6 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 						NETIF_F_GSO_IPXIP6;
 	}
 
-	netdev->hw_features	                 |= NETIF_F_GSO_PARTIAL;
 	netdev->gso_partial_features             |= NETIF_F_GSO_UDP_L4;
 	netdev->hw_features                      |= NETIF_F_GSO_UDP_L4;
 	netdev->features                         |= NETIF_F_GSO_UDP_L4;
-- 
2.36.1