netdev - [net 09/16] net/mlx5e: TC, ignore match level for post meter rules

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Date:   Mon,  9 Jan 2023 22:11:16 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Oz Shlomo <ozsh@...dia.com>,
        Roi Dayan <roid@...dia.com>
Subject: [net 09/16] net/mlx5e: TC, ignore match level for post meter rules

From: Oz Shlomo <ozsh@...dia.com>

The post meter table only matches on reg_c5. As such, the inner/outer
match levels are irrelevant for the match critieria. The cited patch only
sets the outer criteria to none, thus setting the inner match level for
encapsulated packets. This caused rules with police action on tunnel
devices to not find an existing flow group for the match criteria, thus
failing to offload the rule.

Set both the inner and outer match levels to none for post_meter rules.

Fixes: 0d8c38d44f33 ("net/mlx5e: TC, init post meter rules with branching attributes")
Signed-off-by: Oz Shlomo <ozsh@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
index 8d7d761482d2..50b60fd00946 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
@@ -127,6 +127,7 @@ mlx5e_post_meter_add_rule(struct mlx5e_priv *priv,
 		attr->counter = act_counter;
 
 	attr->flags |= MLX5_ATTR_FLAG_NO_IN_PORT;
+	attr->inner_match_level = MLX5_MATCH_NONE;
 	attr->outer_match_level = MLX5_MATCH_NONE;
 	attr->chain = 0;
 	attr->prio = 0;
-- 
2.39.0