From 990467f8afde8c85215f6f4ab439b9615fd151e7 Mon Sep 17 00:00:00 2001 From: Yevgeny Kliteynik Date: Sun, 4 Jul 2021 17:48:24 +0300 Subject: [PATCH] net/mlx5: DR, Skip source port matching on FDB RX domain The FDB RX pipe is connected to the wire and the source port for all incoming packets equals to wire, single uplink port per PF, this means there is no point of matching on the source port in such case. Once we recognize such case, we will optimize the RX steering rule. Note that in such case we clean both source_eswitch_owner_vhca_id and source_port. Signed-off-by: Alex Vesker Signed-off-by: Yevgeny Kliteynik Reviewed-by: Alex Vesker Signed-off-by: Saeed Mahameed --- .../net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c index 6f6191d..f0d9f94 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c @@ -396,6 +396,7 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher, struct mlx5dr_domain *dmn = matcher->tbl->dmn; struct mlx5dr_ste_ctx *ste_ctx = dmn->ste_ctx; struct mlx5dr_match_param mask = {}; + bool allow_empty_match = false; struct mlx5dr_ste_build *sb; bool inner, rx; int idx = 0; @@ -428,6 +429,16 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher, if (ret) return ret; + /* Optimize RX pipe by reducing source port match, since + * the FDB RX part is connected only to the wire. + */ + if (dmn->type == MLX5DR_DOMAIN_TYPE_FDB && + rx && mask.misc.source_port) { + mask.misc.source_port = 0; + mask.misc.source_eswitch_owner_vhca_id = 0; + allow_empty_match = true; + } + /* Outer */ if (matcher->match_criteria & (DR_MATCHER_CRITERIA_OUTER | DR_MATCHER_CRITERIA_MISC | @@ -619,7 +630,8 @@ static int dr_matcher_set_ste_builders(struct mlx5dr_matcher *matcher, } /* Empty matcher, takes all */ - if (matcher->match_criteria == DR_MATCHER_CRITERIA_EMPTY) + if ((!idx && allow_empty_match) || + matcher->match_criteria == DR_MATCHER_CRITERIA_EMPTY) mlx5dr_ste_build_empty_always_hit(&sb[idx++], rx); if (idx == 0) { -- 2.7.4