From: Guy Shattah Date: Mon, 28 Jan 2019 13:58:07 +0000 (+0000) Subject: net/mlx5e: Use the inner headers to determine tc/pedit offload limitation on decap... X-Git-Tag: v4.20.8~44 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b07bc1c10cc14a2729c035848e4f860f631d863;p=thirdparty%2Fkernel%2Fstable.git net/mlx5e: Use the inner headers to determine tc/pedit offload limitation on decap flows [ Upstream commit 1651925d403e077e3fc86f961905e27c6810e132 ] 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 Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 9dabe9d4b2798..4e0151918db13 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -2133,6 +2133,7 @@ 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 match_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 (match_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; }