From 76027f4dbd79496c93f9941b1d6285bd32efa32e Mon Sep 17 00:00:00 2001
From: Guy Shattah <sguy@mellanox.com>
Date: Mon, 28 Jan 2019 13:58:07 +0000
Subject: [PATCH 1/4] net/mlx5e: Use the inner headers to determine tc/pedit
offload limitation on decap flows
Git-commit: 1651925d403e077e3fc86f961905e27c6810e132
References: git-fixes
Patch-mainline: v5.0-rc6
In packets that need to be decaped the internal headers
have to be checked, not the external ones.
Fixes: bdd66ac0aeed ("net/mlx5e: Disallow TC offloading of unsupported match/action combinations")
Signed-off-by: Guy Shattah <sguy@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index e1a187795ecf..ff9444a34271 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2134,6 +2134,7 @@ static bool csum_offload_supported(struct mlx5e_priv *priv,
static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
struct tcf_exts *exts,
+ u32 actions,
struct netlink_ext_ack *extack)
{
const struct tc_action *a;
@@ -2143,7 +2144,11 @@ static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
u16 ethertype;
int nkeys, i;
- headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+ if (actions & MLX5_FLOW_CONTEXT_ACTION_DECAP)
+ headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, inner_headers);
+ else
+ headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+
ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype);
/* for non-IP we only re-write MACs, so we're okay */
@@ -2200,7 +2205,7 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
return modify_header_match_supported(&parse_attr->spec, exts,
- extack);
+ actions, extack);
return true;
}
--
2.16.4