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Wed, 7 Jan 2026 09:04:29 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , "Daniel Jurgens" Subject: [PATCH net-next v15 02/12] virtio: Add config_op for admin commands Date: Wed, 7 Jan 2026 11:04:12 -0600 Message-ID: <20260107170422.407591-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260107170422.407591-1-danielj@nvidia.com> References: <20260107170422.407591-1-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: CO1PEPF000044F8:EE_|PH7PR12MB8037:EE_ X-MS-Office365-Filtering-Correlation-Id: f1bb8c83-f5be-461a-fe9e-08de4e0ede9a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?TQ+IVEHj0BV/BRiif6BHtgl5ZitvlJ9KgJoJv4ME8C+0r+/uIIXB5TrqxYkT?= =?us-ascii?Q?QzBKGU9TreatI208JhocFssE3C2HskP7ccW4jhT1lhkD9qZQyzP7kqx0jkM3?= =?us-ascii?Q?ncg/EdSjNDUublY0pEkgwMUsStZWNrm1juXbhLyk4Ug1nEkRVwSdkDgzlfHT?= =?us-ascii?Q?fL5Gj2FhifuVnkbDpU4LLb90o/SVpfGMO3qudD7HYfiKsndE4DJegPcxfUKs?= =?us-ascii?Q?tXNhDdzY5/h8noPWaeJCNUys2j9E385EyXnZ5kSZblLPZjrJX2gA0jzN92dM?= =?us-ascii?Q?JJayPFCYgombsUJ8fnWBo3N2DfTbiPrD2hk7PbqG8YO/KAuWOY6Qy/1/Akit?= =?us-ascii?Q?TMygScdxfB1mG8jCcV1P0004TXTfKyJFyiv1XyvrBSkMLRx8GkLrl67ClLNy?= =?us-ascii?Q?deF3DycxoOggnDo+oXOu1rmkjmhXC92N5HLU9srLebyCgSOecopLgdm4VFdW?= =?us-ascii?Q?3PjxRii7GU/PVlbj3zlrpbdkSFN8xFqkS1DrE5yoM8Xi6trrmB8ZaZfgCfhL?= =?us-ascii?Q?AW37pxdaJ6cy9rT5gQsLzc6/6X9J6LGesZH8e6lw7LGGTNJiUwoPWafD9hCQ?= =?us-ascii?Q?OBLm5P2jeHzJ0dkyT0RXtVpqjluJVVUHTXTSkCJTxn5AyYQC95X6/83R2oiU?= =?us-ascii?Q?2VMwpd41jdwnTZfdtWJatJLwBv6jM1jQEmNUfzqhEDn7CQC3JVnVsvSRi+g0?= =?us-ascii?Q?cK84LZEWX+Ec3/i4pxkyUTTQKMUneml2RmyKryai2HsW9M2CEJucLatRaw3t?= =?us-ascii?Q?qyUectK2Mm66Zxrjz0EU4perhyXQQHAsf/clpsOQdvGWNZnCUvIGn0ZZ73PN?= =?us-ascii?Q?ju+IWbmmiDeJRt4TdYbWslIOncneuIAnvvPOTQmKpgEgputSaGyuElTEsUgA?= =?us-ascii?Q?84QrhhDQBg/BTp56iWik7olN4lJmUrI0koo6OOks/cUmLBLamTaHBH2mcP8G?= =?us-ascii?Q?hku2hbUiqAE19clPfnJp42P9JBQWsjsfKGUIU61V9jfeZp4T13+bkjfXYoot?= =?us-ascii?Q?liUaNdCygn079Fr0sEHqaUdK7qSwP+y8iq/TAM8zcKAQ0QnKTL5DN27Dekpc?= =?us-ascii?Q?bkh6JPXcWXsYhP77mKQrWtCfIHfvKsAbQCh/O8tVDrI4pjK1Cw2QLW3dsXlj?= =?us-ascii?Q?E8v4E0rjMraWXd+OEbdkjQRuY6SeMTPTEX+3+7kYsnHsulkRSu7Cl0c8muSJ?= =?us-ascii?Q?s9q77UIZsG9KNuD6r6o8ZDGS5CfOTYOsILh628GxRGAQ01bVMGr9xmU08qEi?= =?us-ascii?Q?F0UhCMrxZYcD8FQCzQnQTdEFl0BS85lgKaBi/S/fEojswGFAA4GIqeGnv7J+?= =?us-ascii?Q?bYstpl/P+snXUEI2Uv2QmkAs3O+7ZbV4YHwa9ZZfcZ+zytVtgs/m2kgEy+6W?= =?us-ascii?Q?VxGwXUHdlN8eOm+EyVRLq1TjObjVKB1u3ggEI1C0rJqQARqG2ffnB+ERQZJL?= =?us-ascii?Q?jXqteWS/Nsgsh3edOkI41LxFL09AkitDbv09CIlloCu5kDuNjyFEt+/1G/j+?= =?us-ascii?Q?7Al2fnfB5WJM8UzYtYjNafjle08tgq9NJy766If8mmCfLb/TgMSf0esIWm32?= =?us-ascii?Q?/OP3JaWskFrvbzCT0mY=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(82310400026)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jan 2026 17:04:50.3526 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f1bb8c83-f5be-461a-fe9e-08de4e0ede9a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F8.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB8037 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