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net/mlx5e: Fix IPsec tunnel mode offload feature check

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[ Upstream commit 9a52f6d44f ]

Remove faulty check disabling checksum offload and GSO for offload of
simple IPsec tunnel L4 traffic. Comment previously describing the deleted
code incorrectly claimed the check prevented double tunnel (or three layers
of ip headers).

Fixes: f1267798c9 ("net/mlx5: Fix checksum issue of VXLAN and IPsec crypto offload")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rahul Rameshbabu 2024-05-22 22:26:56 +03:00 committed by Greg Kroah-Hartman
parent cc9ac559f2
commit 719367cad4
1 changed files with 5 additions and 12 deletions
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17
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h
View file

@ -97,18 +97,11 @@ mlx5e_ipsec_feature_check(struct sk_buff *skb, netdev_features_t features)
if (!x || !x->xso.offload_handle)
goto out_disable;
if (xo->inner_ipproto) {
/* Cannot support tunnel packet over IPsec tunnel mode
* because we cannot offload three IP header csum
*/
if (x->props.mode == XFRM_MODE_TUNNEL)
goto out_disable;
/* Only support UDP or TCP L4 checksum */
if (xo->inner_ipproto != IPPROTO_UDP &&
xo->inner_ipproto != IPPROTO_TCP)
goto out_disable;
}
/* Only support UDP or TCP L4 checksum */
if (xo->inner_ipproto &&
xo->inner_ipproto != IPPROTO_UDP &&
xo->inner_ipproto != IPPROTO_TCP)
goto out_disable;
return features;