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Thu, 5 Feb 2026 06:31:15 -0800 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Donald Hunter , Jiri Pirko , Jonathan Corbet , Saeed Mahameed , "Leon Romanovsky" , Tariq Toukan , Mark Bloch , Shuah Khan , , , , , , Gal Pressman , Moshe Shemesh , Shay Drori , Jiri Pirko , Or Har-Toov Subject: [PATCH net-next V2 7/7] devlink: Document port-level resources Date: Thu, 5 Feb 2026 16:28:33 +0200 Message-ID: <20260205142833.1727929-8-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20260205142833.1727929-1-tariqt@nvidia.com> References: <20260205142833.1727929-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099E0:EE_|MW4PR12MB7144:EE_ X-MS-Office365-Filtering-Correlation-Id: 5835a10a-681c-4c6d-2306-08de64c3494f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|7416014|376014|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?Yqgn+PzhofIMIskHf9hWtVN7PT6nt5AI7jtT2C5ZAdX6U5F7EpnuV2i7aO1u?= =?us-ascii?Q?45VIlYDSGc648q2ujO4M3PRqZDJOK3pjNWub3wK5QyJ+RkNjjw4ZOk2aLb4/?= =?us-ascii?Q?DJYc+RQ7Yt5esSKIfGyK3RSxRgZpXvIZo5t9be9QCbeo/3/K2Bv/ORVnvymX?= =?us-ascii?Q?ByaG1Mgu1HpOTRrFb7urO3Q6uV0oEGz9Sd3ed+pje763xV0h46OdMXaSM5B1?= =?us-ascii?Q?5HsR+0CKY3DNDOvJ6siYMikKyUkwLvy2qsvithm6/LTwjG+C2oLKyK+2lbe9?= =?us-ascii?Q?tH3XizePLlMVpXPrtIDwK3m/T2RaJ6X4sKzE7y0gwO7HM2DVOTP95k4AatGd?= =?us-ascii?Q?Wh5jFkIiYHjiVHdGhvujt4ctpE/RAL5zRH9mQnHrVieGT1gCf+qdP+TdU4Pq?= =?us-ascii?Q?KrD2ngw0WNpMqjuH6ZSl5CWAkDdMRlgDICQBd6tAQJF2515xPEySrhCRbcS3?= =?us-ascii?Q?9Q+HiKeeR7LxRLbBJ0oKFG6NNfuzIK+nbtapDqMvH/dZwDkdhITSy1u2gANW?= =?us-ascii?Q?29hdNen48RgE0lawqXCosn98RHs4pCQ5YQzvC+KIIR2X4k+7M7TMeV9BCM5s?= =?us-ascii?Q?1xvAck353/xhuMqtHMgBod7H7CL/iQJcBUSuaQ1bgyOK3vHbj58QYVrrQr5O?= =?us-ascii?Q?KHOZwR6FrXyNnmFv3mCleDDIIEoGy4b4l4gaUYAQEJCYrDkQVhCWubCj8TiS?= =?us-ascii?Q?oXRWbPVTF6Lkedw9yOUiWSxNhDnNiap0/vERBAX9hihcYvZF6cNRyYf86PN3?= =?us-ascii?Q?19PzOzdbWUEO1K5fwUAZpGxX6SNMvlqnrWHlcIhUTgxe/hK2oGa7bF/Awqug?= =?us-ascii?Q?ql2o/380mAvFroEZu65XAivhMKBA4JmfcTdmRQn0mlXaM1Yv9AC84Rm2dKAE?= =?us-ascii?Q?ka9ApIOlHq+SspQZJx6WaCsdEKRdTQ0Iuipm/JFbKU8b2k+k7A0yT1yNp0Pm?= =?us-ascii?Q?ytDmuP2KDyT2kABv9ajoTe/Habo6SlxHy5JEDIpcu++pfkyP3gz6uHQnzvOF?= =?us-ascii?Q?MjKVs8W/U8+SnM17/naK39wlFcTtUDAlf6aplBlOiNZBkzWQathelcxvT+37?= =?us-ascii?Q?dpbEvk0CwbpsQ9+ApeYQ/4Kn6Zk/xaloSiweP4E4u/8OhYFsiMbU5UuaXGFf?= =?us-ascii?Q?9Lo5h2M7hOCBM7tAVqh/r6ggbmXChLqdKBjvai8VWkDYBzJPDrINM/VGFOIn?= =?us-ascii?Q?KCtjiJQCZBjk/qTwTTiroY1FIwDNvxjVom4WlV2hxAR6aDu5rGcro1c2f5LD?= =?us-ascii?Q?WGCkeQmC5eOJlABub10bwUNYt2tDnXlrE28vJpp4J+dmOiBrDX0LdBMl7Znm?= =?us-ascii?Q?t9fqB9nWgyMQkXJl/hyKzSMQdvNLZ/1qHnLd7/PxygMMSUN9Ux+cNNNeM+Iz?= =?us-ascii?Q?QuRDPIVm/4FeX+iR0pvcyaX+zbHg9C71Y5UgXuk+ZZF06+Bk5d1MdyWrHXqN?= =?us-ascii?Q?Frr8AORsaYA+ZFjI9qzf7jZR4p4Tc1KsASTTlE4km/1/AaG5xv43/Un02C+y?= =?us-ascii?Q?ksKxoTtAoswLQRTlU2MVRCJvxK6tsmFPVN6h+hWaIt7vMkqgVvyoFPPfnDwA?= =?us-ascii?Q?LzEFtPT0iYGfoDsBZNW/FzQ0F9+uuubFQMdVCI8umKyZSMmFO+vb3r24XCMc?= =?us-ascii?Q?p8NeywkquLofK32iTjMCK9LxS8dFm3DJ0v+XBW0F56QP/2kzebOgeNXRkY+O?= =?us-ascii?Q?M1PNFw=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(1800799024)(7416014)(376014)(36860700013);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 1ri8maCkY+p2FxY1VVy6Qh7PuUilU9n36qEwGV8PlKD1cU5Sg1V8dTSbyGdfkWgYd7WzIfQ7/Dhpi2Z3+ygdbsOQN8sU+fcJHf/dXKCVzJBgzjOP1wNHWH68ZClgvVKnnz51pf5tAiOsPFbFXib1bqGktXxkAqsWtdB+e9HkB/mZhodeOuEZ8nMYOuFlEUdcalfPoK9gcsQ+ZKm6s+dhDStL+6CpbrZy6gV1q0BctzuNxmzXaTImvtCS41ZX/LUN8cDj0cOHHoe7bjKmLeIpETfK8Xr48Eql0CyH3PDmDObcu4JCCkUEjjbeRrh0wMkXU9rNK8qH4lC2tOChUnKVx4eGt4mz0Cibx19HXe0KfXB5ZxJaUQJ/OKmpO60s0SgX6+R8oORp0YGYSfQc9TNXC50s+8TS1LTTGOdQZgdRYTKkAhHrdbcuuZKVA2zcnltB X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Feb 2026 14:31:44.3252 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5835a10a-681c-4c6d-2306-08de64c3494f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099E0.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7144 Content-Type: text/plain; charset="utf-8" From: Or Har-Toov Add documentation for the port-level resource feature to devlink-resource.rst. Port-level resources allow viewing resources associated with specific devlink ports. Currently, port-level resources only support the show command for viewing resource information. Signed-off-by: Or Har-Toov Reviewed-by: Shay Drori Reviewed-by: Moshe Shemesh Signed-off-by: Tariq Toukan --- .../networking/devlink/devlink-resource.rst | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/Documentation/networking/devlink/devlink-resource.rst b/Docume= ntation/networking/devlink/devlink-resource.rst index 3d5ae51e65a2..c2bb7e429a26 100644 --- a/Documentation/networking/devlink/devlink-resource.rst +++ b/Documentation/networking/devlink/devlink-resource.rst @@ -74,3 +74,39 @@ attribute, which represents the pending change in size. = For example: =20 Note that changes in resource size may require a device reload to properly take effect. + +Port-level Resources +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +In addition to device-level resources, ``devlink`` also supports port-level +resources. These resources are associated with a specific devlink port rat= her +than the device as a whole. + +Currently, port-level resources only support the ``show`` command for view= ing +resource information. + +Port-level resources can be viewed for a specific port: + +.. code:: shell + + $ devlink port resource show pci/0000:03:00.0/196608 + pci/0000:03:00.0/196608: + name max_SFs size 20 unit entry + +Or for ports of a specific device: + +.. code:: shell + + $ devlink port resource show pci/0000:03:00.0 + pci/0000:03:00.0/196608: + name max_SFs size 20 unit entry + +Or for all ports across all devices: + +.. code:: shell + + $ devlink port resource show + pci/0000:03:00.0/196608: + name max_SFs size 20 unit entry + pci/0000:03:00.1/262144: + name max_SFs size 20 unit entry --=20 2.44.0