netdev - [net-next 09/15] net/mlx5: DR, init_next

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Message-Id: <20210930232050.41779-10-saeed@kernel.org>
Date:   Thu, 30 Sep 2021 16:20:44 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        Yevgeny Kliteynik <kliteyn@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 09/15] net/mlx5: DR, init_next_match only if needed

From: Yevgeny Kliteynik <kliteyn@...dia.com>

Allocate next steering table entry only if the remaining space requires to.

Signed-off-by: Yevgeny Kliteynik <kliteyn@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c  | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
index 3497c2cf3118..cb9cf67b0a02 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
@@ -586,9 +586,11 @@ static void dr_ste_v1_set_actions_tx(struct mlx5dr_domain *dmn,
 	} else if (action_type_set[DR_ACTION_TYP_L2_TO_TNL_L3]) {
 		u8 *d_action;
 
-		dr_ste_v1_arr_init_next_match(&last_ste, added_stes, attr->gvmi);
-		action = MLX5_ADDR_OF(ste_mask_and_match_v1, last_ste, action);
-		action_sz = DR_STE_ACTION_TRIPLE_SZ;
+		if (action_sz < DR_STE_ACTION_TRIPLE_SZ) {
+			dr_ste_v1_arr_init_next_match(&last_ste, added_stes, attr->gvmi);
+			action = MLX5_ADDR_OF(ste_mask_and_match_v1, last_ste, action);
+			action_sz = DR_STE_ACTION_TRIPLE_SZ;
+		}
 		d_action = action + DR_STE_ACTION_SINGLE_SZ;
 
 		dr_ste_v1_set_encap_l3(last_ste,
-- 
2.31.1