netdev - [net-next 08/13] net/mlx5e: kTLS, Fill work queue edge separately in TX flow

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat,  9 May 2020 01:28:51 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc:     netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
        Maxim Mikityanskiy <maximmi@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 08/13] net/mlx5e: kTLS, Fill work queue edge separately in TX flow

From: Tariq Toukan <tariqt@...lanox.com>

For the static and progress context params WQEs, do the edge
filling separately.
This improves the WQ utilization, code readability, and reduces
the chance of future bugs.

Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 .../mellanox/mlx5/core/en_accel/ktls_tx.c      | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index 352b0a3ef0ad..efc271e24b03 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -134,14 +134,14 @@ post_static_params(struct mlx5e_txqsq *sq,
 		   struct mlx5e_ktls_offload_context_tx *priv_tx,
 		   bool fence)
 {
+	u16 pi, num_wqebbs = MLX5E_KTLS_STATIC_WQEBBS;
 	struct mlx5e_umr_wqe *umr_wqe;
-	u16 pi;
 
-	pi = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->pc);
+	pi = mlx5e_txqsq_get_next_pi(sq, num_wqebbs);
 	umr_wqe = MLX5E_TLS_FETCH_UMR_WQE(sq, pi);
 	build_static_params(umr_wqe, sq->pc, sq->sqn, priv_tx, fence);
-	tx_fill_wi(sq, pi, MLX5E_KTLS_STATIC_WQEBBS, 0, NULL);
-	sq->pc += MLX5E_KTLS_STATIC_WQEBBS;
+	tx_fill_wi(sq, pi, num_wqebbs, 0, NULL);
+	sq->pc += num_wqebbs;
 }
 
 static void
@@ -149,14 +149,14 @@ post_progress_params(struct mlx5e_txqsq *sq,
 		     struct mlx5e_ktls_offload_context_tx *priv_tx,
 		     bool fence)
 {
+	u16 pi, num_wqebbs = MLX5E_KTLS_PROGRESS_WQEBBS;
 	struct mlx5e_tx_wqe *wqe;
-	u16 pi;
 
-	pi = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->pc);
+	pi = mlx5e_txqsq_get_next_pi(sq, num_wqebbs);
 	wqe = MLX5E_TLS_FETCH_PROGRESS_WQE(sq, pi);
 	build_progress_params(wqe, sq->pc, sq->sqn, priv_tx, fence);
-	tx_fill_wi(sq, pi, MLX5E_KTLS_PROGRESS_WQEBBS, 0, NULL);
-	sq->pc += MLX5E_KTLS_PROGRESS_WQEBBS;
+	tx_fill_wi(sq, pi, num_wqebbs, 0, NULL);
+	sq->pc += num_wqebbs;
 }
 
 static void
@@ -166,8 +166,6 @@ mlx5e_ktls_tx_post_param_wqes(struct mlx5e_txqsq *sq,
 {
 	bool progress_fence = skip_static_post || !fence_first_post;
 
-	mlx5e_txqsq_get_next_pi(sq, MLX5E_KTLS_STATIC_WQEBBS + MLX5E_KTLS_PROGRESS_WQEBBS);
-
 	if (!skip_static_post)
 		post_static_params(sq, priv_tx, fence_first_post);
 
-- 
2.25.4