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net/mlx5e: Fix IPsec tunnel mode offload feature check

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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>
This commit is contained in:
Rahul Rameshbabu 2024-05-22 22:26:56 +03:00 committed by David S. Miller
parent 16d66a4fa8
commit 9a52f6d44f
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
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@ -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;