[PATCH 4.9 08/33] net/mlx5e: Dont allow aRFS for encapsulated packets

From: Greg Kroah-Hartman
Date: Fri Jul 27 2018 - 06:10:50 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Eran Ben Elisha <eranbe@xxxxxxxxxxxx>

[ Upstream commit d2e1c57bcf9a07cbb67f30ecf238f298799bce1c ]

Driver is yet to support aRFS for encapsulated packets, return early
error in such case.

Fixes: 18c908e477dc ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <eranbe@xxxxxxxxxxxx>
Reviewed-by: Tariq Toukan <tariqt@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -715,6 +715,9 @@ int mlx5e_rx_flow_steer(struct net_devic
skb->protocol != htons(ETH_P_IPV6))
return -EPROTONOSUPPORT;

+ if (skb->encapsulation)
+ return -EPROTONOSUPPORT;
+
arfs_t = arfs_get_table(arfs, arfs_get_ip_proto(skb), skb->protocol);
if (!arfs_t)
return -EPROTONOSUPPORT;