| From 5c29ce800f8d475b21484ff3138c963915803161 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Fri, 29 Jan 2021 18:43:31 +0200 |
| Subject: net/mlx5e: Use net_prefetchw instead of prefetchw in MPWQE TX |
| datapath |
| |
| From: Maxim Mikityanskiy <maximmi@mellanox.com> |
| |
| [ Upstream commit 991b2654605b455a94dac73e14b23480e7e20991 ] |
| |
| Commit e20f0dbf204f ("net/mlx5e: RX, Add a prefetch command for small |
| L1_CACHE_BYTES") switched to using net_prefetchw at all places in mlx5e. |
| In the same time frame, commit 5af75c747e2a ("net/mlx5e: Enhanced TX |
| MPWQE for SKBs") added one more usage of prefetchw. When these two |
| changes were merged, this new occurrence of prefetchw wasn't replaced |
| with net_prefetchw. |
| |
| This commit fixes this last occurrence of prefetchw in |
| mlx5e_tx_mpwqe_session_start, making the same change that was done in |
| mlx5e_xdp_mpwqe_session_start. |
| |
| Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> |
| Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> |
| Reviewed-by: Tariq Toukan <tariqt@nvidia.com> |
| Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c |
| index 38a23d209b33..373668068071 100644 |
| --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c |
| +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c |
| @@ -486,7 +486,7 @@ static void mlx5e_tx_mpwqe_session_start(struct mlx5e_txqsq *sq, |
| |
| pi = mlx5e_txqsq_get_next_pi(sq, MLX5E_TX_MPW_MAX_WQEBBS); |
| wqe = MLX5E_TX_FETCH_WQE(sq, pi); |
| - prefetchw(wqe->data); |
| + net_prefetchw(wqe->data); |
| |
| *session = (struct mlx5e_tx_mpwqe) { |
| .wqe = wqe, |
| -- |
| 2.30.2 |
| |
