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 B076122A7F2; Mon, 2 Jun 2025 14:57:51 +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=1748876271; cv=none; b=uZf6CW2wwUL2f5yUbhcX4mCRMYlnf6WTfXBkf+lS+rF0QIYe1E1SwfaKy+hVPHVc+zoQpr6ntPCwoEZzDk8tfMzL+QVbZKpQHG43jLRlWli70BtyX495Cvfye9//0wf2pD93XnvxEc+7pUIhKIEyArHleNgPCmpTQhOhjDvr6nk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748876271; c=relaxed/simple; bh=+0Vt8okLqDVmuZhdKWFCUromc5PVZPzsU5F2jGzxp+E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KCGUDeM033hD9MgmLSugt3IDurFlA4WYIWf5iClUcULxMA7k0TkuL7hE+ck0VO3zL+RYvagnt3MwBTdD/PiXfZlMz0Mvk94frOhgYMGdpRzgTTAXbdJiNnOECO2G9ZcGJsimEghGTPDjaM7l3O0qct8arEtTumr2Xjm9CTWYfgI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=hwuTZKIM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="hwuTZKIM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38F56C4CEEB; Mon, 2 Jun 2025 14:57:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748876271; bh=+0Vt8okLqDVmuZhdKWFCUromc5PVZPzsU5F2jGzxp+E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hwuTZKIMxL2liUh6sAC/5GXsgWcf5f5rRwiPW+mZNRGyvj7y1ZE1dsbwHbWyM/Kbm Y/pRxwvFaq8ufsQw9d14Wj2IS5nnuj9pYUhHD6f/hM23EMnQFhrQOa0cgiow125u1J QxrR2SNh+CAKKzPy4noXl+mHlRfMuA3Ayc3HjJ2A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, William Tu , Daniel Jurgens , Tariq Toukan , Michal Swiatkowski , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 126/207] net/mlx5e: set the tx_queue_len for pfifo_fast Date: Mon, 2 Jun 2025 15:48:18 +0200 Message-ID: <20250602134303.647228058@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250602134258.769974467@linuxfoundation.org> References: <20250602134258.769974467@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ 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