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Wed, 15 Oct 2025 22:01:06 -0700 From: Daniel Jurgens To: , , , , CC: , , , , , , , , , , , , Daniel Jurgens Subject: [PATCH net-next v5 02/12] virtio: Add config_op for admin commands Date: Thu, 16 Oct 2025 00:00:45 -0500 Message-ID: <20251016050055.2301-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251016050055.2301-1-danielj@nvidia.com> References: <20251016050055.2301-1-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: BL6PEPF00020E60:EE_|MN0PR12MB6269:EE_ X-MS-Office365-Filtering-Correlation-Id: 9a1c9d4a-3ba0-4484-9231-08de0c710cab X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|7416014|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?UOmmUCz7KHfu5rDiAk4HmB5jBFe0D1u982ApIH1i1KlOd1TiEe4dtiNFyreZ?= =?us-ascii?Q?YfBN90kxNxn6SPmbfO1G/QKXqrp7WJW5qisS5vZE63N5GftMo9D9OU9Ag5mF?= =?us-ascii?Q?hGFKKUj+pwItf+hKhSbR/DK/neiATfae+NSjZNADK1RyHfCaEMF6YJsdRGDA?= =?us-ascii?Q?F01jZiU4Im2usJy5l1Mc5aoX0eOBUZvBnIGTMuPgEC54Kkd8MTHR7WOArWNB?= =?us-ascii?Q?xFTElG+A05Bah3Ta0JTNNgMO8XXkZHUc7ih4YB1ssioVKjBTlHcehX4QT6R1?= =?us-ascii?Q?5ndYMbpFTzg04guG97UqHJdobjuzF5tWuQK7H2GHxLEwL2AL4GZX0/ckgAR0?= =?us-ascii?Q?2ikTbX653oLpp0ENNTXTYl3UqWnfnUoIRfBzMmGr6JtnGFUbHbHJaky9B51Z?= =?us-ascii?Q?EfFXtaZeGKYaU/GBQ4ZZ6erUFNlb4BriRxs5kYeYIVb6LxVGjJeBGcw4qdZf?= =?us-ascii?Q?frrn3zFSKr9UwkOzySJEXB8wp2kxoWIHwemsRDnfWcTuoer+lLKU/PvUtI/p?= =?us-ascii?Q?eEhByKqwaSj3ZFEHLW8eUeyo+NSYklc9cDC+P2vAY6I2p6/6Qth3Bv0NxMLG?= =?us-ascii?Q?abolhyqFeXCBB11F3enpx1gJLbJ2+etcbsd2nS9AfcYsP604jhYJjn4EG1Ro?= =?us-ascii?Q?7zIC6Fx3uNKZTtTIrH9EjHllrpM8MLzM7ETrq8wodwMWSwDaiLm8YYrtu0Mv?= =?us-ascii?Q?FSr8rsxpupGR3eAjta8EPYz7a8e1NgaicPeAD28jMJlRqVncypNnN5nj4rvN?= =?us-ascii?Q?zVnmKQJQREtQdDgJxtF0gfqXZF5xAsUZo94uqr+8rrF7qBxkl0vACHpnsAcr?= =?us-ascii?Q?+r+4sOXPof72eUOSlTCxSPQj2YxuZismy4gva1AVIkVKSX8CpFE36h4OHcUA?= =?us-ascii?Q?DWE+sfcgUfCFjfwfDcVMQHsTVkGulmNI9PWPUUWWhn4IysMiIZ/7NOUtT0Ri?= =?us-ascii?Q?jn0RXyRY6d8qMO7RG2NnuaqY4BlZz9ga1NAHBW95uwgbm///EAIvwY+HOsmw?= =?us-ascii?Q?A4cMMCJaOiuRruuJMC2s0MlY011mZ1QbuIbinFD6nD1M0DHW9R/Yu+sVNsRS?= =?us-ascii?Q?KY/ES6OLeDX8+Du54c0fDP/it4FWDkH4YAvsv3ggwUYkJP46M9pbPGV0cx2G?= =?us-ascii?Q?sdhdLPGeOu7YsEihURNbX4VrfiurAF+IV6VNnC/pjUwda5q4mwAzkPxznpGx?= =?us-ascii?Q?pqLjcZxVaciqAGZ1pwSepoNTD/uNehE2ErZvCCqyplcv4rNsIBPairctkkVa?= =?us-ascii?Q?aSgwk+6ANeleiANVVjHDZwytKyi0XoP31yssbq2QWw35RgroZPTpXgXBAJlK?= =?us-ascii?Q?N+vu2D2jSGXfwHr/X6b7nIIWoySkYV2wppyzHZrjloNQI7OM9ZRPvrQXcqxS?= =?us-ascii?Q?ppMd4KigaukonNk+rboeDZWu5yoEKLSmptGR0eHSHpLZjLuVdtvuoeeGUzLd?= =?us-ascii?Q?N+0AKJ30niyZmswNLJ2GJwry+UhMX9lPmrQw/Upe9ruXUDHAKbN9oGafp7Re?= =?us-ascii?Q?83KU+85GNK0RtNNT/WmvWgVqgRqf6x8mHnv+m/aC0aPfW5CJALqIMgj8XIR9?= =?us-ascii?Q?RrCLDOlQr30OsLkFYHY=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)(376014)(7416014)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2025 05:01:21.4863 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9a1c9d4a-3ba0-4484-9231-08de0c710cab 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: BL6PEPF00020E60.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6269 This will allow device drivers to issue administration commands. Signed-off-by: Daniel Jurgens Reviewed-by: Parav Pandit --- v4: New patch for v4 --- 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 ff11de5b3d69..acc3f958f96a 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 16001e9f9b39..19606609254e 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. + * 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