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Wed, 21 Jan 2026 14:07:34 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , "Daniel Jurgens" Subject: [PATCH net-next v16 02/12] virtio: Add config_op for admin commands Date: Wed, 21 Jan 2026 16:06:42 -0600 Message-ID: <20260121220652.894364-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260121220652.894364-1-danielj@nvidia.com> References: <20260121220652.894364-1-danielj@nvidia.com> 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: BL02EPF0001A0FB:EE_|LV8PR12MB9083:EE_ X-MS-Office365-Filtering-Correlation-Id: 28681a4b-0c0f-46f5-e0ec-08de59398ac6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700013|376014|7416014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?pqvhoeOOdFkNdqHlALqf5bxkiwhcIlVC05gHY2BV7PEU3tlqDQj4IE8shAY1?= =?us-ascii?Q?6TL0KlLl68mkw9O38yI6y5KguYtqTjIs/JmBeO2IYFG/dZIqzOPANbSleIvD?= =?us-ascii?Q?rB5wczGtFnR4JaHLKKPC/T6VwIh+E1wqZ5jKrKkmIgMmXgQuwUY45ZymMtWO?= =?us-ascii?Q?7v24puAmpcwfU1Tf6tO5+1hFZ30Gtuhj2gCNePhbNymX1kUn4QNyAT+5JkX9?= =?us-ascii?Q?GmsxpDIBjtQbRFatPmgfwr0R0ha/rGykmG4EmcnW3Xeyyf1Qpn/eps3x5hak?= =?us-ascii?Q?3w6h8bh58FzR7KF/z0yBI8n0w2HcvZmH5+KelW3+V/IuY7GEedjYCYBP3NdB?= =?us-ascii?Q?TKq9vfL+vw9BemyIVQxaCVBBx6OX4xybYnw7+mWcCh6hpBzLxxlygEtBLvxN?= =?us-ascii?Q?gl1IhdUzN/hOB3J1lGwremVAlarWHq6vRdK6o3IYvmPckFaQv36dSZVF9WdZ?= =?us-ascii?Q?7ElDENHyyo/FLPkrAhhgXs75g7RF5KgMi+Ef7L/uBHA4z5y1AQFoj+RScEDj?= =?us-ascii?Q?8rBVfZM20hQ5S/0rDAjicbY5w9H4TKHUyWVswQ7HuoUfK7gr7CiLsXk/M3LT?= =?us-ascii?Q?O/dgs/C/IeBmTxNQlNGjEuO36GSVs1PMnnpJidKkz+gO5+XwGM42ld/gM+0J?= =?us-ascii?Q?shpH5Qkw1J4HYguaB/bq6stdgs1hc1OmnvQsMsSyGOSQBydvBdx5Se68v1/i?= =?us-ascii?Q?8hsPo1uZcMiyEHENaMUcwkR6UhXHFowSVEO4BqBnlryya2kUcR2bTrhudg3n?= =?us-ascii?Q?cbapgji4mQ641fQXuMPEIeR1CEnksWLnKOBqBxXIHY8sunvm23Lq0LbxlZRs?= =?us-ascii?Q?DXyQjdd2juGz+KMVi1ut2WMSEyfgwDIxpCOMSO2C1x5CH6kMMsgS1vi+pLHs?= =?us-ascii?Q?HNXRAeGTT4GtC5jq1/DUOpFXkj7kGkVO2nAPztjhLsSh7ueeRZreDkOUQni6?= =?us-ascii?Q?Wc1YuT2eZvVcm/cyacHYKuAJD3TA3E8Thw2Iy2rKwXHl7jdjKnIrB/ulXwd/?= =?us-ascii?Q?Qhcol2YOqX79VHVneGExZnMeEb2wWgGEAuWEHVhfLM6oe+PNZiM8nfs3pj71?= =?us-ascii?Q?wreMky9Yv/kDClfG9wfv+7y4n9MQzygP9dggQVYwcenrO0o+wYAC1X6zNCZD?= =?us-ascii?Q?ZeTFXbspZfElbslq6xiyNhiPwHnG/rZ6Gvl+6rXpVL6jPp7eZytX6BEWql1K?= =?us-ascii?Q?HC8R5UmEuVzirpHrHFpq8q+T/RsjnmKXeNsck3QdEALoZddOVdakpmy8rGQ+?= =?us-ascii?Q?S+4GfF8Zi3DC704JWiqPSLXNXKV4Ro6GpOEJCspLvqo2tJMaknvE2EAaCbOA?= =?us-ascii?Q?pK0dZEoQAu1p3zGitxfCAsUTBK7diLeOv32buKINl/T2g6bjTyzJPht3pEiB?= =?us-ascii?Q?sY39z/HecrUXeJx5LrKACpHsLgEhD+W8OVzYqIOVjAyiWr9j/RkmzM1rnf+5?= =?us-ascii?Q?wiRSbte4wRu+YkjLog8iEu1X6I2KumISdf3kMaJS7bIeVOg3Y4/3gQ7PBB5l?= =?us-ascii?Q?tS9JhvfPnjiB/qmwkP+NwN1CTV2KGkL+WwUGrvLnzLIBVawvYsicNV1xrXpX?= =?us-ascii?Q?Sq6cS6AJGKbwPDfWbTca9dicVTNgerEScf5Wxlpesy/dsQOn0Rl33G4f3prZ?= =?us-ascii?Q?Nr1JQd676RcXiuW/XPvrsA58Dy7lrnUKY6pMbjfiRoB3XE818fORb5upQUgi?= =?us-ascii?Q?XJeEBA=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(36860700013)(376014)(7416014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2026 22:08:00.7589 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 28681a4b-0c0f-46f5-e0ec-08de59398ac6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A0FB.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9083 This will allow device drivers to issue administration commands. Signed-off-by: Daniel Jurgens Reviewed-by: Parav Pandit Reviewed-by: Xuan Zhuo --- v4: New patch for v4 v12: Add (optional) to admin_cmd_exec field. MST --- drivers/virtio/virtio_pci_modern.c | 2 ++ include/linux/virtio_config.h | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 1675d6cda416..e2a813b3b3fd 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -1236,6 +1236,7 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = { .get_shm_region = vp_get_shm_region, .disable_vq_and_reset = vp_modern_disable_vq_and_reset, .enable_vq_after_reset = vp_modern_enable_vq_after_reset, + .admin_cmd_exec = vp_modern_admin_cmd_exec, }; static const struct virtio_config_ops virtio_pci_config_ops = { @@ -1256,6 +1257,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .get_shm_region = vp_get_shm_region, .disable_vq_and_reset = vp_modern_disable_vq_and_reset, .enable_vq_after_reset = vp_modern_enable_vq_after_reset, + .admin_cmd_exec = vp_modern_admin_cmd_exec, }; /* the PCI probing function */ diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 69f84ea85d71..e36a32e0a20c 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -108,6 +108,10 @@ struct virtqueue_info { * Returns 0 on success or error status * If disable_vq_and_reset is set, then enable_vq_after_reset must also be * set. + * @admin_cmd_exec: Execute an admin VQ command (optional). + * vdev: the virtio_device + * cmd: the command to execute + * Returns 0 on success or error status */ struct virtio_config_ops { void (*get)(struct virtio_device *vdev, unsigned offset, @@ -137,6 +141,8 @@ struct virtio_config_ops { struct virtio_shm_region *region, u8 id); int (*disable_vq_and_reset)(struct virtqueue *vq); int (*enable_vq_after_reset)(struct virtqueue *vq); + int (*admin_cmd_exec)(struct virtio_device *vdev, + struct virtio_admin_cmd *cmd); }; /** -- 2.50.1