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 F39B52F5F86; Mon, 5 May 2025 23:17:24 +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=1746487045; cv=none; b=hTW3+uDjsLqA2P4Xun49i3Am5f354fbow+vj07queds2mny36L3HYlYs2Ecjh2K6eqlZWEI5nDlQqlMC5j87N56s+qSpgz+TRA5y1qDCk5AXMltfEF9rU8GfZSwAc1lxTlJFBS/Ho2owvka9Jm/28Rhc7Nugtp4lu2pTQ/Oj+fg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746487045; c=relaxed/simple; bh=jxorT5kC7+ch9b4vT4OAtlzC+qRhXbPQIT2KwokeOtQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gAdD6vGWYglx5HB05ngXeeyM/U1Pfae0nSnbPVDo27UamNrktZJ4GhaBbVm/PsjEpN95G2fRPEktL9IM4THlZeN0a9mAGTW/mqLItA/JzJ7QsMzxsOtQhNGfW9+zjgQoS0m8XbGQvQCXZ6prNa1+TbpLad8PCbiL02Leu7ke4x8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FY52MbnK; 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="FY52MbnK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52A73C4CEED; Mon, 5 May 2025 23:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746487044; bh=jxorT5kC7+ch9b4vT4OAtlzC+qRhXbPQIT2KwokeOtQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FY52MbnK8wSDBIAbSnVm754zyjCuvwF//uAKU54Fp/uOWfvyCqJH+g78BPwBCfuOd 3o2S1blG8dSNOdgD9YwdwE2Fvxic5ki2nI8SUyPtxNofI463E6BUXw1xFt1YuCtUAO a/6YOwgAY+UZksbpLkh27CuLjmwwJHkWVa2dYnR4XeP3tB/r+6SryKUgP+pv0ztFG6 w4mAcD9eW6JRgwFjxSMVfRsJg8s3fyrmwI1ZxuryEalsnTse4bOvZDRwFIBJHte0SR vA5lRbWhxpU0+1l/d7brYh4pv2rhqluYxZ/ijentmQc62BqujJYKz7RkJQeQ3gfefx 4IxVpUrUapxqA== 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 5.15 124/153] net/mlx5e: set the tx_queue_len for pfifo_fast Date: Mon, 5 May 2025 19:12:51 -0400 Message-Id: <20250505231320.2695319-124-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505231320.2695319-1-sashal@kernel.org> References: <20250505231320.2695319-1-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 5.15.181 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 de168d8cf33f7..3c8bfedeafffd 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -642,6 +642,8 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev, netdev->ethtool_ops = &mlx5e_rep_ethtool_ops; netdev->watchdog_timeo = 15 * HZ; + if (mlx5_core_is_ecpf(mdev)) + netdev->tx_queue_len = 1 << MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE; #if IS_ENABLED(CONFIG_MLX5_CLS_ACT) netdev->hw_features |= NETIF_F_HW_TC; -- 2.39.5