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Wed, 5 Nov 2025 14:44:37 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , , Daniel Jurgens Subject: [PATCH net-next v8 02/12] virtio: Add config_op for admin commands Date: Wed, 5 Nov 2025 16:43:46 -0600 Message-ID: <20251105224356.4234-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251105224356.4234-1-danielj@nvidia.com> References: <20251105224356.4234-1-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: MN1PEPF0000ECD5:EE_|IA1PR12MB8335:EE_ X-MS-Office365-Filtering-Correlation-Id: 2de1246c-85c4-4cac-fb61-08de1cbcf34f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?D1PDMCkkmht4QSc8xzAp84bqXjN/TAVM+oMFGGs6Y2g+YAoqmKE8i+ilNzS1?= =?us-ascii?Q?oAK4ERJKBvMiCoxjVOhuWxK4bySzjjonDuJGTjRFwPVA0Tp+f13bR476pg74?= =?us-ascii?Q?p1q0QyvvfU2fnpCOMJxT4puh7L/TVauaW3uIjcd4qTJg9T4RBhf24w9f/sV5?= =?us-ascii?Q?1no2Olle3ivlDRKtpK2NYSQ12CG8HOOPp4+dse/u6qSUypZDrhVYWdh0cnR4?= =?us-ascii?Q?vUxbxKvVrRymQhVuXyvn8LgzxdR3MnF+T8RPMko2m3q/d9t15PIazIUphDhT?= =?us-ascii?Q?fIebYwesSfpKG/xGrS081/UA7bCPhe3S9n9g0R4ZlsScn0bOe2peLQo4gIO/?= =?us-ascii?Q?so/lRn9fMRAR4zFvcytmbZbd1tTNWhf4cH8f6Vjljp95MqvoLevT0IybSiJe?= =?us-ascii?Q?8520hid119QHLvyXYdrZfc7jmh0ynUxiZ+b2qbB6Buwtld0ap7D/00yMGA29?= =?us-ascii?Q?Ty5NSPmAcDTU/mNdAiuM9vMTRxPJZEP/QmJzesh63VThxK+fr7YaahNpu8ZN?= =?us-ascii?Q?HLifvi/z7gIChZerfWejbau8wb/toBaORbOL27pSbfw49EYqIDThwC6B4DvQ?= =?us-ascii?Q?ZmK6IQOMjmls5iRjp8Q4BleSPpA6eG5H0iQl8cRsDfKzXMzWKIUs09daQby4?= =?us-ascii?Q?VdCOH4UqlJ9ZjG12eRLt7WC6rASzijJ/18Aafawu5RQDP3sNVu985EPQR7Nh?= =?us-ascii?Q?ChIc5om6KNkIGbKuUC1Aj6Z8QUFC9+Rg4iXkD3OGPeafn45nJmhxhImKowHm?= =?us-ascii?Q?+Ns6e++ZXzmc+bAG4SDd3a1zfW/n7kowFhrginBCJuUl9Wvv8sE+3uidMvW9?= =?us-ascii?Q?DypgVsTt3tbnmtIl7bm/kQy7IfX3R/UFB7TebcT2JEXlYQ5paZDYBhIsKzoz?= =?us-ascii?Q?PB6xPSC5FSV8J53V6SqAdN+RTQtYB8THawjYYt62J6lc83bxdMqIihGZNq3j?= =?us-ascii?Q?Dhud0y/col3fBOYh0w6xk6bTawfzvLTmzseKWphmyAKo6VBjc8/TMKy5F1fR?= =?us-ascii?Q?3p42aIqZyhHwuBDP24vhLmIZwJU6eq/SDbRNCUSmVb7MMxWhKG06qUGQ0nrB?= =?us-ascii?Q?ZhqVvJQK4ulJKl7bwLXBhC+epH8ArPK6jZ5vVF85EWdP32RESu/VfszZPckf?= =?us-ascii?Q?vFPZCFbgveDpJODctfddodjE3V1iy/lyG2OT2UM5J/Rb4Jadeh0QrErMEk7S?= =?us-ascii?Q?onFLG3zgX4H32+S8XLZCD80eUcQnKtoxQfGqVbga8+6v0GFaGhzL/TutWdLg?= =?us-ascii?Q?yRYAhDkp05om/Nho7xXOx64smlDwxTuUUMOFhhc0usMkwvIetNnQE3CGej14?= =?us-ascii?Q?GWEWQdu/T61z57xmoOjokWUIDZZjdz5XKLtIhCsWtVAERuSmxMcGGPve2mKY?= =?us-ascii?Q?IN5tdWNARQWaV/LUpozT1la79EfnZx0LH/j+4gAb/oBbIs1JOocrQx7yEeoX?= =?us-ascii?Q?+ACmrqhn2ZFSPcQQR5anOOqye+0iEVPn8YXUTMHDrtHGJ7LxbbenANyRg8PM?= =?us-ascii?Q?h2FF0MJVojv8Tf/j7BltL+Q5k0gBxHMAemc35NlE+Qm0tiuGYjLXePSMwVpo?= =?us-ascii?Q?fX37mdvl3Rs4rBVSSwk=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Nov 2025 22:44:59.3456 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2de1246c-85c4-4cac-fb61-08de1cbcf34f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECD5.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB8335 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 --- 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