netdev - [net-next 02/14] net/mlx5: Remove unnecessary checks for slow path flag

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Date:   Mon, 25 Oct 2021 13:54:19 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Paul Blakey <paulb@...dia.com>,
        Maor Dickman <maord@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 02/14] net/mlx5: Remove unnecessary checks for slow path flag

From: Paul Blakey <paulb@...dia.com>

After previous changes, caller (mlx5e_tc_offload_fdb_rules()) already
checks for the slow path flag, and if set won't call offload/unoffload
sample.

Signed-off-by: Paul Blakey <paulb@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../ethernet/mellanox/mlx5/core/en/tc/sample.c  | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
index d1d7e4b9f7ad..1046b7ea5c88 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
@@ -509,13 +509,6 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
 	if (IS_ERR_OR_NULL(tc_psample))
 		return ERR_PTR(-EOPNOTSUPP);
 
-	/* If slow path flag is set, eg. when the neigh is invalid for encap,
-	 * don't offload sample action.
-	 */
-	esw = tc_psample->esw;
-	if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH)
-		return mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
-
 	sample_flow = kzalloc(sizeof(*sample_flow), GFP_KERNEL);
 	if (!sample_flow)
 		return ERR_PTR(-ENOMEM);
@@ -527,6 +520,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
 	 * Only match the fte id instead of the same match in the
 	 * original flow table.
 	 */
+	esw = tc_psample->esw;
 	if (MLX5_CAP_GEN(esw->dev, reg_c_preserve) ||
 	    attr->action & MLX5_FLOW_CONTEXT_ACTION_DECAP) {
 		struct mlx5_flow_table *ft;
@@ -634,15 +628,6 @@ mlx5e_tc_sample_unoffload(struct mlx5e_tc_psample *tc_psample,
 	if (IS_ERR_OR_NULL(tc_psample))
 		return;
 
-	/* If slow path flag is set, sample action is not offloaded.
-	 * No need to delete sample rule.
-	 */
-	esw = tc_psample->esw;
-	if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH) {
-		mlx5_eswitch_del_offloaded_rule(esw, rule, attr);
-		return;
-	}
-
 	/* The following delete order can't be changed, otherwise,
 	 * will hit fw syndromes.
 	 */
-- 
2.31.1