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GET /api/patches/103744/?format=api
{ "id": 103744, "url": "https://patches.dpdk.org/api/patches/103744/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20211104112644.17278-5-bingz@nvidia.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20211104112644.17278-5-bingz@nvidia.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20211104112644.17278-5-bingz@nvidia.com", "date": "2021-11-04T11:26:44", "name": "[4/4] doc: update the description for Rx delay drop", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "6cc513a44df84ff0812f5a3f5461ddff767f1af5", "submitter": { "id": 1976, "url": "https://patches.dpdk.org/api/people/1976/?format=api", "name": "Bing Zhao", "email": "bingz@nvidia.com" }, "delegate": { "id": 3268, "url": "https://patches.dpdk.org/api/users/3268/?format=api", "username": "rasland", "first_name": "Raslan", "last_name": "Darawsheh", "email": "rasland@nvidia.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20211104112644.17278-5-bingz@nvidia.com/mbox/", "series": [ { "id": 20307, "url": "https://patches.dpdk.org/api/series/20307/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=20307", "date": "2021-11-04T11:26:41", "name": "Add delay drop support for Rx queue", "version": 1, "mbox": "https://patches.dpdk.org/series/20307/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/103744/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/103744/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 7FF9AA0C41;\n\tThu, 4 Nov 2021 12:27:36 +0100 (CET)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id E9086426F3;\n\tThu, 4 Nov 2021 12:27:23 +0100 (CET)", "from NAM12-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam12on2070.outbound.protection.outlook.com [40.107.243.70])\n by mails.dpdk.org (Postfix) with ESMTP id 67154426EA\n for <dev@dpdk.org>; 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dmarc=pass action=none header.from=nvidia.com;", "Received-SPF": "Pass (protection.outlook.com: domain of nvidia.com designates\n 216.228.112.34 as permitted sender) receiver=protection.outlook.com;\n client-ip=216.228.112.34; helo=mail.nvidia.com;", "From": "Bing Zhao <bingz@nvidia.com>", "To": "<viacheslavo@nvidia.com>, <matan@nvidia.com>", "CC": "<dev@dpdk.org>, <rasland@nvidia.com>, <thomas@monjalon.net>,\n <orika@nvidia.com>", "Date": "Thu, 4 Nov 2021 13:26:44 +0200", "Message-ID": "<20211104112644.17278-5-bingz@nvidia.com>", "X-Mailer": "git-send-email 2.27.0", "In-Reply-To": "<20211104112644.17278-1-bingz@nvidia.com>", "References": "<20211104112644.17278-1-bingz@nvidia.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Originating-IP": "[172.20.187.5]", "X-ClientProxiedBy": "HQMAIL101.nvidia.com (172.20.187.10) To\n HQMAIL107.nvidia.com (172.20.187.13)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "ba311906-c987-470c-b197-08d99f860ca6", "X-MS-TrafficTypeDiagnostic": "CY4PR12MB1621:", "X-LD-Processed": "43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr", "X-Microsoft-Antispam-PRVS": "\n <CY4PR12MB162190B23A65F7BFBC079E97D08D9@CY4PR12MB1621.namprd12.prod.outlook.com>", "X-MS-Oob-TLC-OOBClassifiers": "OLM:9508;", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:216.228.112.34; CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE;\n SFS:(4636009)(36840700001)(46966006)(6666004)(110136005)(54906003)(2906002)(6636002)(186003)(15650500001)(16526019)(336012)(7696005)(107886003)(1076003)(86362001)(5660300002)(83380400001)(82310400003)(36860700001)(356005)(8936002)(8676002)(4326008)(426003)(7636003)(316002)(26005)(47076005)(36756003)(508600001)(2616005)(55016002)(70586007)(6286002)(70206006);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "04 Nov 2021 11:27:13.5121 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n ba311906-c987-470c-b197-08d99f860ca6", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n CO1NAM11FT052.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "CY4PR12MB1621", "Subject": "[dpdk-dev] [PATCH 4/4] doc: update the description for Rx delay drop", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "The release note and new device parameter \"delay_drop_en\" for the\ndelay drop feature in mlx5.rst are updated.\n\nSigned-off-by: Bing Zhao <bingz@nvidia.com>\n---\n doc/guides/nics/mlx5.rst | 26 ++++++++++++++++++++++++++\n doc/guides/rel_notes/release_21_11.rst | 1 +\n 2 files changed, 27 insertions(+)", "diff": "diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst\nindex bb92520dff..2874a34cb6 100644\n--- a/doc/guides/nics/mlx5.rst\n+++ b/doc/guides/nics/mlx5.rst\n@@ -1123,6 +1123,27 @@ Driver options\n \n By default, the PMD will set this value to 1.\n \n+- ``delay_drop_en`` parameter [int]\n+\n+ Bitmask value for the Rx queue delay drop attribute. Bit 0 is used for standard\n+ Rx queue and bit 1 is used for hairpin Rx queue.\n+ By default, the delay drop will be enabled for all hairpin Rx queues (if any)\n+ and disabled for all standard Rx queues. It will be ignored if the NIC does\n+ not support the attribute.\n+ A timeout value is set in the driver to control the waiting time before dropping\n+ a packet when there is no WQE available on a delay drop Rx queue. Once the timer\n+ is expired, the delay drop will be deactivated for all queues. To re-activeate it,\n+ a rearming is needed and now it is part of the kernel driver.\n+\n+ To enable / disable the delay drop rearming, the private flag ``dropless_rq`` can\n+ be set and queried via ethtool:\n+\n+ - ethtool --set-priv-flags <netdev> dropless_rq on (/ off)\n+ - ethtool --show-priv-flags <netdev>\n+\n+ The configuration flag is global per PF and can only be set on the PF, once it is on,\n+ all the VFs', SFs' and representors' Rx queues will share the timer and rearming.\n+\n .. _mlx5_firmware_config:\n \n Firmware configuration\n@@ -1797,6 +1818,11 @@ Supported hardware offloads\n | | | | | rdma-core 35 |\n | | | | | ConnectX-6 Dx |\n +-----------------------+-----------------+-----------------+\n+ | Rxq Delay drop | | DPDK 21.11 | | DPDK 21.11 |\n+ | | | OFED 5.5 | | OFED 5.5 |\n+ | | | N/A | | N/A |\n+ | | | ConnectX-5 | | ConnectX-5 |\n+ +-----------------------+-----------------+-----------------+\n \n .. table:: Minimal SW/HW versions for shared action offload\n :name: sact\ndiff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst\nindex 13d8330873..76d18aeb6b 100644\n--- a/doc/guides/rel_notes/release_21_11.rst\n+++ b/doc/guides/rel_notes/release_21_11.rst\n@@ -191,6 +191,7 @@ New Features\n * Added implicit mempool registration to avoid data path hiccups (opt-out).\n * Added NIC offloads for the PMD on Windows (TSO, VLAN strip, CRC keep).\n * Added socket direct mode bonding support.\n+ * Added delay drop support for Rx queue.\n \n * **Updated Solarflare network PMD.**\n \n", "prefixes": [ "4/4" ] }