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Thu, 5 Feb 2026 14:47:13 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , "Daniel Jurgens" Subject: [PATCH net-next v20 02/12] virtio: Add config_op for admin commands Date: Thu, 5 Feb 2026 16:46:57 -0600 Message-ID: <20260205224707.16995-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260205224707.16995-1-danielj@nvidia.com> References: <20260205224707.16995-1-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: SJ1PEPF00001CE9:EE_|MW4PR12MB6825:EE_ X-MS-Office365-Filtering-Correlation-Id: c9ef5ae2-9ac8-497d-e786-08de65088a4e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|7416014|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?PFtUnWA1SU4vPFzsonxVmCL/3ZBgb6BCx7aoD56IXLAEVFJAXNffAxG/rxO7?= =?us-ascii?Q?J0tSQHF8Rbpy0zugAl+BnN6Pre2oqA+K9q4dYS9TVicP8SreikGWgEIJLs0N?= =?us-ascii?Q?q0heaJ0o+KipdQjtS8IpRGXPpW3OTecR2XT5k8vldOYBxT5ARbJDmWDs+nDw?= =?us-ascii?Q?635XKwLJkLFsbGR64tg6knMSDzBSiTYjaK9zfYi7AiKfaXGhKwoExoWj+rKo?= =?us-ascii?Q?zHw7uxvnh45oe73V0xAx+vaGfbVh6ZxtJxMVrkpDvsTgdKD0XRJ0E5dQQ+1O?= =?us-ascii?Q?op3e+mNe/CQFBu/3Q1Bf8UEPNiJ+4xh/L/1SgvVGu1iCu3kp0mr0sg+LDpNM?= =?us-ascii?Q?C44D94eWGn4dLI88MOOxzSKr9FA5LU+OLONFn3lXCGDWM5u+xUCLTf9aOxR/?= =?us-ascii?Q?jnNhcXwFHc4RcYx7IkuWaMlZ2xxAYr8m31NKkB/ygqrkxCz0dJeBmoJquESc?= =?us-ascii?Q?4Q7FRSB/8lRsedHgLsknRXNg3waL2mAc7T9RudrYqeW9zowqAZnKG37Rw1Jl?= =?us-ascii?Q?r4vKVqJhe3/2fmyAqSiJfl2giDKqyhwniMGe6oxmugukp1mJVdnpEuvtEN15?= =?us-ascii?Q?s09Ii1QNhhcP+QbCUJvwTLS+ZW5EQSzvhEeAgX1OfXDPwHW1SaV5Rh7CS7pW?= =?us-ascii?Q?yCZGNn8fbp1RhqaAPRTd9tHX13wBKIzmJNxgRTvgQ/MYxXnTIGQM+gzA68RZ?= =?us-ascii?Q?Wem9oTc5+1Lfrj46Mz1dbvObJbkPt2OjpNH7DbmSldm5+BdPEBHtAAhUFL8C?= =?us-ascii?Q?qf3FP2Xc6NrCCISbD07Hz47AyAIxf0KK7149XDCMvetorh02yUPgtTjAC/ls?= =?us-ascii?Q?sL6DgZ8uAc8gGu7+Gdk9IHU1mVGXVexwZybeVNpmYZ540fLDrEjOGwfo5psW?= =?us-ascii?Q?/IlzH0pU3iVEheVAfvMtGdtHQsPKDtiPZ0r2GBHcnhsX24eqj+Fc2ybLdhVa?= =?us-ascii?Q?rMfzFvuOW9Njfij+XZEQLSadxz2UYkc/B6ohdS0KFWxoORcOz5Nvk2H7YpqK?= =?us-ascii?Q?CYahyBrndbCGvqT1gEFGwEJJN4UOn0V2+JP1i2ElD6qbwPtQq6dXUIYcilKY?= =?us-ascii?Q?8ixgpi4/yBVt4p0seZedD33ev77TKsyzGc/x2KCVnjTZIEqc2nxqjo5SZmFd?= =?us-ascii?Q?zrec9BBJley2BQyj/BEGSpO2cC1VG/SIG6y44CKsnOnFIWccBxjd6Nu0Jam0?= =?us-ascii?Q?V1q0YAqTUMCdsUxCzg0kvZH8DyqerRPrP/U0O9TSo7i51pRtvxaRAWuLjtMq?= =?us-ascii?Q?eYLcuJW4mRt5kt24Cv+SyAbVR0b1+Of9Qu2z0iwid2dTbrTf/SLc2plbFZnF?= =?us-ascii?Q?AswXFdraTm55RiOJQhl4skyTvxejaDopfNgAC8WR97fTumIKadn1I+KnAo1h?= =?us-ascii?Q?r5GdTmLP8nwZZo4A0KuioEYnlmCdSvQrtmrMrclA0oR9xNx2KH3r9xNn5NDJ?= =?us-ascii?Q?JqA/QuLf75OXhf6gB2O7gPDHey0eZGL6iYCW+QLdagbLiUcMm7DC7ODJB8wT?= =?us-ascii?Q?I8sY/j1Nz4dTnfUVDDYznxb8SJjhlowtIve5pJWaLJQvEwo4VtJ8AHbOJybl?= =?us-ascii?Q?J45CgU2DVHsLSYn8QCitbosOG0rvaoefKWvwEyPZqH21e0Bz4/UACRh50eKs?= =?us-ascii?Q?2r+Qq7kuVSNfeEItIFWI0XdqEu9ARSaH7E27cZDY3RXFtN0nbcKy4IZJU12G?= =?us-ascii?Q?rAXcQw=3D=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)(82310400026)(36860700013)(7416014)(376014)(1800799024);DIR:OUT;SFP:1101; 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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