[PATCH net] net/mlx4_en: Don't allow aRFS for encapsulated packets

[PATCH net] net/mlx4_en: Don't allow aRFS for encapsulated packets

[Tariq Toukan]

From: Aya Levin <ayal@nvidia.com>

Driver doesn't support aRFS for encapsulated packets, return early error
in such a case.

Fixes: 1eb8c695bda9 ("net/mlx4_en: Add accelerated RFS support")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 3 +++
 1 file changed, 3 insertions(+)

Hi,
Please queue to -stable.

Regards,
Tariq

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 35154635ec3a..8af7f2827322 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -372,6 +372,9 @@ mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 	int nhoff = skb_network_offset(skb);
 	int ret = 0;
 
+	if (skb->encapsulation)
+		return -EPROTONOSUPPORT;
+
 	if (skb->protocol != htons(ETH_P_IP))
 		return -EPROTONOSUPPORT;
 
-- 
2.21.0

Re: [PATCH net] net/mlx4_en: Don't allow aRFS for encapsulated packets

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 23 Sep 2021 09:51:45 +0300 you wrote:
> From: Aya Levin <ayal@nvidia.com>
> 
> Driver doesn't support aRFS for encapsulated packets, return early error
> in such a case.
> 
> Fixes: 1eb8c695bda9 ("net/mlx4_en: Add accelerated RFS support")
> Signed-off-by: Aya Levin <ayal@nvidia.com>
> Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
> 
> [...]

Here is the summary with links:
  - [net] net/mlx4_en: Don't allow aRFS for encapsulated packets
    https://git.kernel.org/netdev/net/c/fdbccea419dc

You are awesome, thank you!
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