From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BYAPR05CU005.outbound.protection.outlook.com (mail-westusazon11010004.outbound.protection.outlook.com [52.101.85.4]) (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 ADF4026AF4; Thu, 19 Mar 2026 07:52:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.85.4 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773906731; cv=fail; b=LGWONYzYxK+3UGq702MNaDIGFZxa9zylGpJrSSZJTpHkKjJK1gNC6rhJSM3+hiBEHFugkftzg9KPKarD4D0fa+dfOp+2V9aL2ICuYYeWg3bD9WFAv9ljxYdaRcHx1G9lMF+y2CqCBG4rfkriDmXyLN/mKNKInB1KjolSB/tf6vE= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773906731; c=relaxed/simple; bh=FTrDIrT6epFnBAJ7B1iKpP4/Qb+BInf1Z7uA0MuHhT8=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=hfKOAzs0ef7OLFpSNQZyc8ekngeweKVWeHesfdyj6M502/wYEV8rZPJ+enjsFSQmpXden8LoTTaAz3x7uU1UzQPDULcOeAO8jGST09EXqFSvK6Nt+BwoKhJVwiLYsa0jgPIHh+HqSw+Se6sLSyZRe2UZYo1LNkiDEPlx0B70tjA= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=ZJft4ApG; arc=fail smtp.client-ip=52.101.85.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="ZJft4ApG" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Q4Htrf6QkYO8fTIXI5w4Gj6qYkQXZdxOa2a2haPl7NrMcgiYgmKfejgeuLCS4q5DfE47QB5FtopMnC8RFnCQHzWsbY6Roqa1JqJpe30JAinTk7bn553fYFILjZl42/X+HFoONxATW310FkrixXDZIiN1ENjeqV0Lb9t46TGfPNLAuylb7T3V6VCrS4Gizr/YHAixCRcRiUSX3DBSpdmS3tSX0x88Zc8ZwFmzzlTc94hJ0v7II7/xx3QRykjRG8InkwmtYhBVWTAhC0LWSSkRMW3kTz9PN2zwdH8JlvCa5Op4tIxmqnIGewDLdJ+Itv+a5JgGNndkMsdGnYer/xzUiw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=LebWcriToDJgLrGflNRElzLGcL9O9Ik5xR71I679o8w=; b=QVEpqrGB5f9ksS/ejPGwvefHXb+vIXoP0h+YNzhY+AQkXgIgxVC1UNbTUhs2c//LhI0oH5ZpjNlG2/UdRmC1wIrMWot3SZy5XIyvN6cvbNoCRYcUbrxX0fhr9pdcf4SuiUL2t5W8nQZLQwRnrMiu787Sn1c7XZRLD5kMWcKczw09gWaGIEP11dSltpn1ayUutxDXCcUIza2pt4uAzkCwYQW66t5GqFTjX4hy9sDDJ75Gri0A0i0heo0UmVTMFPJnr/OBRtOEoLGEdjj+MjmkeOppJ2b4zxBpL1zBqbUt7d1a+dvY0X+Bi1TkSyCEg9RNB/bQsD17X5aEufO+HoeDJw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=google.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LebWcriToDJgLrGflNRElzLGcL9O9Ik5xR71I679o8w=; b=ZJft4ApGMhY9zPpx4PuWxRTmhD8FmNWfyTujipULjAAAJR4sWaSuuo78td5VW32UUrSLd8sFugV14jdahiYzzL7r2u0uj8cUMg7dLOBfvLm2zT8RaR6xt1cFSwZIiEJtUI6B4IsmuFFIoVz8+zd0QHIX9XC5/S/SNcf+vGE5WqJyqSQIsV7KyUYtBdIZb93ktjdYrj2k8cUvVlHl4gh+epmgZbi/DC27JsX6HyFXhUjytJ0w1//oWKcUI3KfctMcMIdbobvZ9Nc68QVUd7iIbbx/Hr2hPmKj2g7aBkSB3vY46VVqQqFxs5LRQIBLWMtZ4yfVfxArS3Z8Im5kr5NWMg== Received: from SJ0PR03CA0207.namprd03.prod.outlook.com (2603:10b6:a03:2ef::32) by DS7PR12MB9476.namprd12.prod.outlook.com (2603:10b6:8:250::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.17; Thu, 19 Mar 2026 07:52:05 +0000 Received: from SJ1PEPF00002313.namprd03.prod.outlook.com (2603:10b6:a03:2ef:cafe::2a) by SJ0PR03CA0207.outlook.office365.com (2603:10b6:a03:2ef::32) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9700.27 via Frontend Transport; Thu, 19 Mar 2026 07:51:55 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by SJ1PEPF00002313.mail.protection.outlook.com (10.167.242.167) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.19 via Frontend Transport; Thu, 19 Mar 2026 07:52:05 +0000 Received: from rnnvmail203.nvidia.com (10.129.68.9) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 19 Mar 2026 00:51:45 -0700 Received: from rnnvmail204.nvidia.com (10.129.68.6) by rnnvmail203.nvidia.com (10.129.68.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 19 Mar 2026 00:51:42 -0700 Received: from vdi.nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.6) with Microsoft SMTP Server id 15.2.2562.20 via Frontend Transport; Thu, 19 Mar 2026 00:51:37 -0700 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch , "Alexei Starovoitov" , Daniel Borkmann , "Jesper Dangaard Brouer" , John Fastabend , , , , , Gal Pressman , Moshe Shemesh , Dragos Tatulea , Carolina Jubran Subject: [PATCH net-next 0/5] net/mlx5e: XDP, Add support for multi-packet per page Date: Thu, 19 Mar 2026 09:50:31 +0200 Message-ID: <20260319075036.24734-1-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00002313:EE_|DS7PR12MB9476:EE_ X-MS-Office365-Filtering-Correlation-Id: c4839380-0781-4fb5-334b-08de858c6a09 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|376014|7416014|1800799024|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(36860700016)(376014)(7416014)(1800799024)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: kSwQfhyH3lfYgm5GNCkucmo+9q+e4vmXuPwVmnvIUodK0XRuFMJ/tOONglRX6pOsR0oFitZBLK+xAIoZZZVJKojX5L+nEqznCqaHZIDeQ2xiW5WuE8Cy2nGwEl6rAMKyQxu6UDx9/qCTmXZyw3CaKxpnRByZ9UK0vhbdPFu9Inse6MDORcvot3rliiKs1C1EfuHu5IAijGCXq1fb4Hr+qraBLvYKubjyNHdMQmSAIGGy2jBcd6Vjsny06mhSNjNldfZ5tNcpEmsiSfMhzh+doKJhm21rUCiJKXE0wbpbCmKM2Da+IVQVH/4WrE1J6V0nId0cnSRGumslVm6JrtEBvyzj2lWx3uSkGLiOv7F7JdcHmFHzCOYHbhd0mH31ZtIBYedb6cE5Tg26F8ZcXDmAHH5W5ent0EvZ+bX03r/A7TwGekCnVRq4H8HS7SJuzo9N X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Mar 2026 07:52:05.2714 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c4839380-0781-4fb5-334b-08de858c6a09 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00002313.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB9476 This change removes the limitation of having one packet per page in XDP mode. This has the following implications: - XDP in Striding RQ mode can now be used on 64K page systems. - XDP in Legacy RQ mode was using a single packet per page which on 64K page systems is quite inefficient. The improvement can be observed with an XDP_DROP test when running in Legacy RQ mode on a ARM Neoverse-N1 system with a 64K page size: +-----------------------------------------------+ | MTU | baseline | this change | improvement | |------+------------+-------------+-------------| | 1500 | 15.55 Mpps | 18.99 Mpps | 22.0 % | | 9000 | 15.53 Mpps | 18.24 Mpps | 17.5 % | +-----------------------------------------------+ After lifting this limitation, the series switches to using fragments for the side page in non-linear mode. This small improvement is at most visible for XDP_DROP tests with small 64B packets and a large enough MTU for Striding RQ to be in non-linear mode: +----------------------------------------------------------------------+ | System | MTU | baseline | this change | improvement | |----------------------+------+------------+-------------+-------------| | 4K page x86_64 [1] | 9000 | 26.30 Mpps | 30.45 Mpps | 15.80 % | | 64K page aarch64 [2] | 9000 | 15.27 Mpps | 20.10 Mpps | 31.62 % | +----------------------------------------------------------------------+ This series does not cover the xsk (AF_XDP) paths for 64K page systems. Dragos Tatulea (5): net/mlx5e: XSK, Increase size for chunk_size param net/mlx5e: XDP, Improve dma address calculation of linear part for XDP_TX net/mlx5e: XDP, Remove stride size limitation net/mlx5e: XDP, Use a single linear page per rq net/mlx5e: XDP, Use page fragments for linear data in multibuf-mode drivers/net/ethernet/mellanox/mlx5/core/en.h | 12 +++- .../ethernet/mellanox/mlx5/core/en/params.c | 11 +--- .../ethernet/mellanox/mlx5/core/en/params.h | 2 +- .../net/ethernet/mellanox/mlx5/core/en/xdp.c | 2 +- .../net/ethernet/mellanox/mlx5/core/en_main.c | 50 ++++++++++++++-- .../net/ethernet/mellanox/mlx5/core/en_rx.c | 59 +++++++++++++++---- 6 files changed, 107 insertions(+), 29 deletions(-) base-commit: a7fb05cbb8f989fa5a81818be9680464cff9d717 -- 2.44.0