From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Maxim Mikityanskiy <maximmi@mellanox.com>,
Saeed Mahameed <saeedm@nvidia.com>,
Tariq Toukan <tariqt@nvidia.com>, Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
bpf@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 08/85] net/mlx5e: Use net_prefetchw instead of prefetchw in MPWQE TX datapath
Date: Wed, 5 May 2021 12:35:31 -0400 [thread overview]
Message-ID: <20210505163648.3462507-8-sashal@kernel.org> (raw)
In-Reply-To: <20210505163648.3462507-1-sashal@kernel.org>
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
next parent reply other threads:[~2021-05-05 16:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210505163648.3462507-1-sashal@kernel.org>
2021-05-05 16:35 ` Sasha Levin [this message]
2021-05-05 16:36 ` [PATCH AUTOSEL 5.10 53/85] selftests: Set CC to clang in lib.mk if LLVM is set Sasha Levin
2021-05-05 16:36 ` [PATCH AUTOSEL 5.10 59/85] flow_dissector: Fix out-of-bounds warning in __skb_flow_bpf_to_target() Sasha Levin
2021-05-05 16:36 ` [PATCH AUTOSEL 5.10 64/85] samples/bpf: Fix broken tracex1 due to kprobe argument change Sasha Levin
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