[PATCH net-next 0/3] mlx5: Add TSO support for UDP over GRE over VLAN

[PATCH net-next 0/3] mlx5: Add TSO support for UDP over GRE over VLAN

[Mark Bloch]

Hi,

The following 3 small patches by Gal add support for TSO for
UDP over GRE over VLAN packets.

Gal Pressman (3):
  net/mlx5e: TSO for GRE over vlan
  net/mlx5e: TSO for UDP over GRE over vlan packets
  net/mlx5e: Remove GSO_PARTIAL for non _CSUM GRE

 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)


base-commit: 956f569c90ab507559342d289f4c923adfbf06f5
-- 
2.34.1

[PATCH net-next 1/3] net/mlx5e: TSO for GRE over vlan

[Mark Bloch]

From: Gal Pressman <gal@nvidia.com>

The hardware supports segmentation offload of GRE tunnel over vlan,
allow it by adding it to vlan_features.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 07fc4d2c8fad..1734c4dd1d0f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5800,6 +5800,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 					   NETIF_F_GSO_GRE_CSUM;
 		netdev->gso_partial_features |= NETIF_F_GSO_GRE |
 						NETIF_F_GSO_GRE_CSUM;
+		netdev->vlan_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM;
 	}
 
 	if (mlx5e_tunnel_proto_supported_tx(mdev, IPPROTO_IPIP)) {
-- 
2.34.1

[PATCH net-next 2/3] net/mlx5e: TSO for UDP over GRE over vlan packets

[Mark Bloch]

From: Gal Pressman <gal@nvidia.com>

The hardware supports segmentation offload of UDP over GRE over vlan
packets, allow it by adding NETIF_F_GSO_UDP_L4 to hw_enc_features which
will make the vlan device inherit it to its own hw_enc_features.

Side note: it is quite confusing that this change wasn't needed to
offload encapsulated UDP packets regardless of vlan, but that's the way
that the stack handles gso partial features, it assumes they're
supported without caring if the feature is supported in hw_enc_features.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 1734c4dd1d0f..ce71a03a9b71 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5814,6 +5814,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 
 	netdev->gso_partial_features             |= NETIF_F_GSO_UDP_L4;
 	netdev->hw_features                      |= NETIF_F_GSO_UDP_L4;
+	netdev->hw_enc_features                  |= NETIF_F_GSO_UDP_L4;
 
 	mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
 
-- 
2.34.1

[PATCH net-next 3/3] net/mlx5e: Remove GSO_PARTIAL for non _CSUM GRE

[Mark Bloch]

From: Gal Pressman <gal@nvidia.com>

The hardware can do TSO for GRE packets without an outer checksum, it
doesn't need GSO_PARTIAL's help.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index ce71a03a9b71..3ac47df83ac8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5798,8 +5798,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 					   NETIF_F_GSO_GRE_CSUM;
 		netdev->hw_enc_features |= NETIF_F_GSO_GRE |
 					   NETIF_F_GSO_GRE_CSUM;
-		netdev->gso_partial_features |= NETIF_F_GSO_GRE |
-						NETIF_F_GSO_GRE_CSUM;
+		netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
 		netdev->vlan_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM;
 	}
 
-- 
2.34.1

Re: [PATCH net-next 0/3] mlx5: Add TSO support for UDP over GRE over VLAN

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 7 Jan 2026 11:18:45 +0200 you wrote:
> Hi,
> 
> The following 3 small patches by Gal add support for TSO for
> UDP over GRE over VLAN packets.
> 
> Gal Pressman (3):
>   net/mlx5e: TSO for GRE over vlan
>   net/mlx5e: TSO for UDP over GRE over vlan packets
>   net/mlx5e: Remove GSO_PARTIAL for non _CSUM GRE
> 
> [...]

Here is the summary with links:
  - [net-next,1/3] net/mlx5e: TSO for GRE over vlan
    https://git.kernel.org/netdev/net-next/c/6e6c751b41a8
  - [net-next,2/3] net/mlx5e: TSO for UDP over GRE over vlan packets
    https://git.kernel.org/netdev/net-next/c/5f410e1224e4
  - [net-next,3/3] net/mlx5e: Remove GSO_PARTIAL for non _CSUM GRE
    https://git.kernel.org/netdev/net-next/c/b30ba673058d

You are awesome, thank you!
-- 
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