From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 27959385402; Mon, 5 May 2025 23:23:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746487424; cv=none; b=SBT0u/4CfB2v958HIcsxrFI7l0L181O8Tqq1RQbm0H97Sd36LgLQFWSWOhx0ugWzM5rdItbxlv2Gqz8knDjHA0AufNRifzYOL15QW1Uat8HqAW7STOEvN/Qafi4ypNaSA9UWlNfte4dH9b1Gl+aw2i5/MUx1azsag66MRnnEjPs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746487424; c=relaxed/simple; bh=fzSzdTe7U8gOqg5CSe06w5il22KPV5S86Hppe8x/Dxg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MeKQq5H+RXhsS/XzzZ2asi5EIKbERoDe8BIh5PTcmzuugJGeNqmS1C99lvimqgs1UGSZLXeephV9vX6g23V0oLFwqjWcs8Ga65k3aAvbc6BoFAsmGClR4CrkT+Y41ZVmGaO4EOd7Uj0spTQaf2jdsefmd/HSG07idH8f+xOeng4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LkEeVeLb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LkEeVeLb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6BB2DC4CEED; Mon, 5 May 2025 23:23:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746487423; bh=fzSzdTe7U8gOqg5CSe06w5il22KPV5S86Hppe8x/Dxg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LkEeVeLbCEv6cqn8LznVLHO+DyUHm2hpurZeKAeOjGEONI2OBhawuP3E2OkVJY4nX JrRpFVxJo566W1hX4v7Ogwg1ib5cdpdOpE1j8qe3AfunkcHpBDgN3fOsj287FzLb9Y fBGHM6jw6Rtl2HoMF+tE5/bPPj8Ml+KHHZ7pDVFPdsrZZv+WKMv7XaFW/PhAk+M+PI 7rb4WZJBnV2An3qZvjA5DGeFp70+wAoKTo8595WqHudueCXzaDW+Vkh60yyFnhJQoI n3dfoK0vxOHuAAZKqAk0/SLjbEweLiS9+vHroFii24A0l6f4i4pyMILbucR1ue2Len 6jdfGHXeQqOVA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: William Tu , Daniel Jurgens , Tariq Toukan , Michal Swiatkowski , Jakub Kicinski , Sasha Levin , saeedm@nvidia.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 63/79] net/mlx5e: set the tx_queue_len for pfifo_fast Date: Mon, 5 May 2025 19:21:35 -0400 Message-Id: <20250505232151.2698893-63-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505232151.2698893-1-sashal@kernel.org> References: <20250505232151.2698893-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.4.293 Content-Transfer-Encoding: 8bit From: William Tu [ Upstream commit a38cc5706fb9f7dc4ee3a443f61de13ce1e410ed ] By default, the mq netdev creates a pfifo_fast qdisc. On a system with 16 core, the pfifo_fast with 3 bands consumes 16 * 3 * 8 (size of pointer) * 1024 (default tx queue len) = 393KB. The patch sets the tx qlen to representor default value, 128 (1< Reviewed-by: Daniel Jurgens Signed-off-by: Tariq Toukan Reviewed-by: Michal Swiatkowski Link: https://patch.msgid.link/20250209101716.112774-9-tariqt@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index a40fecfdb10ca..26a9d38d1e2a7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -1470,6 +1470,8 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev) } netdev->watchdog_timeo = 15 * HZ; + if (mlx5_core_is_ecpf(mdev)) + netdev->tx_queue_len = 1 << MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE; netdev->features |= NETIF_F_NETNS_LOCAL; -- 2.39.5