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Mon, 27 Oct 2025 10:40:06 -0700 From: Daniel Jurgens To: , , , , CC: , , , , , , , , , , , , Daniel Jurgens Subject: [PATCH net-next v6 02/12] virtio: Add config_op for admin commands Date: Mon, 27 Oct 2025 12:39:47 -0500 Message-ID: <20251027173957.2334-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251027173957.2334-1-danielj@nvidia.com> References: <20251027173957.2334-1-danielj@nvidia.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev 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: CH1PEPF0000AD79:EE_|CH2PR12MB4277:EE_ X-MS-Office365-Filtering-Correlation-Id: 1800b061-d83a-458c-1096-08de157feb84 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|82310400026|36860700013|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?4u2VuVBs3dwkbFCSdgE/Wm3IP6sH6qThD9ggv3VvWwBJzTQvv5bCjZ+Bgwc6?= =?us-ascii?Q?3l9kHjAX3JUWJqKgH/MWshwQ7myZnpP4Idgt4Wc0x6vhS9MteWUuAfvUTF3m?= =?us-ascii?Q?8edgIQWKuOxUzQRdpceheSn7y7+pi15uXUZyBwXCf5h65iyJx68VNiAK08Sg?= =?us-ascii?Q?3hjvAVtxjzp/g6rWFMyIgB8X7G0GSPXIBM72a1PsvfReu5JFuFFfdOOQn+sA?= =?us-ascii?Q?5JS4vKvVjzXiuRKno1KHU1k4+wKcqRjKTkyPonKPKtciyRIuOJ97zrkMOdzv?= =?us-ascii?Q?MD1baLUyWY+h9bpMvH1kTfr+mDIVQYdXPos1AeN0aQcDWdOS4NIUiZdIJJb/?= =?us-ascii?Q?QuVYx3dHzycMGdlWmwFzloAAyUYO3zrmmZK6sVB08FP0+rXDmiUTRC/V2mz9?= =?us-ascii?Q?H5Nw1yEZh8D049XvJK+avN6VdS1wUwE49qzn3SA9zXYAEHPu5JzpCbbe98pi?= =?us-ascii?Q?oHqLI0ZidTW7DfIWgmaqOCeBpq1BsCJ0bpjTveelgVOZ295rX3BGc6CC7kNu?= =?us-ascii?Q?WkFzL+I1AfQwuX2bLJ/rBmMlVkkcYZYO1tICulMkZCqOvswiAOWOxPC/eSfw?= =?us-ascii?Q?/31Wr0bZ+aROp90CglzhsK13+lmd2XPwQqpobUsJclKm3EbSUO8QNdvcxPP4?= =?us-ascii?Q?siEwuk38l8glCF2Tv1GR5p2FNiX6DP9DKHEIZWYsVRyqotvGF2E8MaJEl5mn?= =?us-ascii?Q?cC0RqnooewUcQm5fnaXMYI6aYCXdIWxGaLt/IyMQpZc6rX2uKHLpUpuFGqQE?= =?us-ascii?Q?QDtUfGOozcJDM8PzC7VnjiBtgkivm7rReW6GJ5ODdQBJPvYVGIHNGmUMmg3m?= =?us-ascii?Q?TOI3UBx5r2xlEU8Nf1X7ofiHPRkpUva7D9XM+yJ80pUEZUR2kFkbWBCNAavq?= =?us-ascii?Q?UvmZojELExEXBNCRimw1JMcFr1Q43JNT+KeHjs6rhwhZ6aMoXrsSJ1M/6peq?= =?us-ascii?Q?8Fje3Mh0UydeTLuPiqsCakJv3xFKCTQAXeGJh3Yp2ez6Ltyn4OKAlR1krqfL?= =?us-ascii?Q?aDoNc5hEV/wIvD6Ea2HK7Jq1fL54xppjhaNJfnSKezP+S7Eh5Y1nKQzajjya?= =?us-ascii?Q?KV3h32MVfpwKcoF4lsnVy4/tWhp2GYi29IOvYZmltjOcmscY3jzxCLBaEmOg?= =?us-ascii?Q?WMIMPtecPcnnjwp4fEhUA/POV19WehnyohHScT8arXsAMpTbDrkqctOSsW2C?= =?us-ascii?Q?zD9wQZY9DVWbeeXzuuPOl6iXZdtdSWhQ1hG7Xo1dhfTXN4O0VKXmgMYHwzue?= =?us-ascii?Q?KmEXkYyrVGA0GmfLFEznjRSHAUsFYo9jkDIG1b0oXJAPwYRsw8KPlDvY4D3p?= =?us-ascii?Q?Z3TSzVVZFZX8w/mE4d8tDB5CCEVbz2fADzP70oHnH9v+EeLpkq55HhBx04B8?= =?us-ascii?Q?Txq90o8DBH2o1lyZFLeSESsiShblG0rNCFE2cI4JYHljxqT+FH7DPJAv/lqa?= =?us-ascii?Q?N9+5ZJzeoEW+xfnsk0/XBbDI7ReMTwFXraaJdMS2Qu+hFXsz1HNS2iFSuQMY?= =?us-ascii?Q?Z3UlpMlqROkr/c1lMyMGM8laGT280zM9yxqgn2Rr78S5uY1JMjaDU/gsZy9I?= =?us-ascii?Q?NQrw/oaCUpa0P/ZRgYQ=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)(376014)(7416014)(82310400026)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Oct 2025 17:40:28.7962 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1800b061-d83a-458c-1096-08de157feb84 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: CH1PEPF0000AD79.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4277 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