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Tue, 6 Jan 2026 08:51:25 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , "Daniel Jurgens" Subject: [PATCH net-next v14 02/12] virtio: Add config_op for admin commands Date: Tue, 6 Jan 2026 10:50:20 -0600 Message-ID: <20260106165030.45726-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260106165030.45726-1-danielj@nvidia.com> References: <20260106165030.45726-1-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: CH3PEPF00000016:EE_|MN0PR12MB5956:EE_ X-MS-Office365-Filtering-Correlation-Id: 8c551dc1-115b-456e-7621-08de4d43e1f8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?LOeb24aO7Zik+rHvvXinkdTmNvVkcLfJnyEPmrBPKhUCgPHZnpCNHJz1Ozah?= =?us-ascii?Q?Njf85mI5U6syhV17ICN2eTJEOsNZ4F5gwJ0xiuKSAyFSxBm6jeGGylFgAJcm?= =?us-ascii?Q?LDhDVU1blW1fitgTIXpmqpFVrf042siJEfK6hbPeyDcQPZAVEbyyODIZFbNu?= =?us-ascii?Q?i6z8pg0tjX7GdrcYs0NyhXngDh65y97W9a6sbyLItw85xy/DX+v3syQrvjJx?= =?us-ascii?Q?m9NUPWLQcYnhOOy2q43K7ltPRPzfDMN+qvb0nzJQDlpTbgHgdpBJYTVQXVvu?= =?us-ascii?Q?UU78SsZ4BqB89R2ljbQuu1KLAh015OHkNwg60Q8x0mz4IQeeK742TQcHqMog?= =?us-ascii?Q?D/jbErTAxnjWVfJxyI51ng1CSlLEEMomMT1+g26WiuLHof8FHfKkhdypovbl?= =?us-ascii?Q?fMZP6WMXkI9prJsDPPR9xZ/9J1UWk9w8ALSDZuuafGmp9ZFaLbJQYeVFHjE2?= =?us-ascii?Q?LTm25aTUPeT5giDp/h9spyQ59B5K9IKLO7ZttnmGn4q1uqWJuXSvKlNRZlfk?= =?us-ascii?Q?wsjWfpfNFh8XRO5RR2a4SBj5z3SC//a4JrMBnbksO57zmWUCO+QAz7WD6ULm?= =?us-ascii?Q?ZyAYzxRF/+Ua37yoDMHLzbW2P0FP2+UR1DKAEyPEqqO5518WgiL8e+Y7Ie84?= =?us-ascii?Q?g6T6L4Ui0PWOtuySIlQ6RkdAUJIXODyg9jlQiNG0DRzCENFMM1TZ7E4QtiI3?= =?us-ascii?Q?FIwlxnrV9gg3BVfjuQ+MT6x8CpGTNyWFjJE70OmWyASjT+xV460/Y892v5G8?= =?us-ascii?Q?xt/eZBGGf+45liRzNctxguiD4j1FSW/IytPfpcmqwrKLHA3146KS1rdAov+u?= =?us-ascii?Q?k0/vnrEmh4t5ILELYoc+JAd+Vi5xdXeY5Ulhl4gpf9O/w3ZCD2n6qTx3isSh?= =?us-ascii?Q?Gh6kxzc2+6O6o+pyGhfU8AqGhbqvfcCGOIDv4EVFkvp7YHDrVCvfFGahp8bQ?= =?us-ascii?Q?TTZbhdWSGN8FqPlQjjbjv7BpIw1G95FnucihO9stv9jT1Tpj6+CUpWfjhV5n?= =?us-ascii?Q?+RAESlb6bfQySD+IN9a7yLRMdaKfYucNPGnoNo2vE9FwiC4fOKRQiJvvTLJZ?= =?us-ascii?Q?jxA/+HVyommf1q+bMXOVukjAI/123dC2LlJFa8YrwcGutaV5GbhPXwUxAP/T?= =?us-ascii?Q?3PyQ2QFqITvRoKCBHbM8r41E3XZ7jB6PYaNKqQC0NLgZuJ2WophVTtz1c7rD?= =?us-ascii?Q?HF2mBnHnZ7mQ81F4oj8hpvikfoE8exestl3msYN8CsGVyfxQqUHYosTfbEWH?= =?us-ascii?Q?jPIHvrI7zGOFemfhLvP9Dt8evDrv49iYvSnPAYNAFjqqMs4Cgk3rzLp9Rlhf?= =?us-ascii?Q?G26QEdfBO/Ltj/0FoH9Br8OtMc9k0uf7j0gk1et9DBfoZZ4/EFirNRN9b3IW?= =?us-ascii?Q?yxKH/uW3U75GvgBP3RT6O6FgkRpxU6WmE9TtiCZhnkrXA9odst6zDnrnywRN?= =?us-ascii?Q?H2z0pmZWxAR+SW9f8usll/TNgF7WT3PUod9Y9N6OrX9o6U88s2+fQp7BpmRe?= =?us-ascii?Q?H3tEPQ6coAh0XxhbpSyt8IzUFj/urv4opZSQ3yUz/mIwZIvkooxqZzviYUlR?= =?us-ascii?Q?ssmJzTg6KqI544etH6w=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)(82310400026)(7416014)(376014)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jan 2026 16:51:48.1004 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8c551dc1-115b-456e-7621-08de4d43e1f8 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: CH3PEPF00000016.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB5956 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 16001e9f9b39..d620f46bcc07 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