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Thu, 6 Nov 2025 20:16:12 -0800 From: Daniel Jurgens To: , , , CC: , , , , , , , , , , , , Daniel Jurgens Subject: [PATCH net-next v9 02/12] virtio: Add config_op for admin commands Date: Thu, 6 Nov 2025 22:15:12 -0600 Message-ID: <20251107041523.1928-3-danielj@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251107041523.1928-1-danielj@nvidia.com> References: <20251107041523.1928-1-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: DS3PEPF0000C37A:EE_|LV3PR12MB9332:EE_ X-MS-Office365-Filtering-Correlation-Id: 58053855-0083-4ca5-b701-08de1db46b0c 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?WAjPnIdv+N7QaXUZROIt82rSm6tTZLWmoAri9FO6nqkJ/CdL7jAH3xQqf1ZL?= =?us-ascii?Q?qEImQ3WlXlhhu6bnKfiCWeUcm6lo41FN/u8dRXrfhoRMyc+1httIsUPhv+Sd?= =?us-ascii?Q?j67fnbHdpI2AM/PCELdfR5h/fFteZL9DtwD2YxQgyGCyJZi2tu+2jd/eFALB?= =?us-ascii?Q?BR0cHTnypERqT0wrdd4gioXHVTfiKku/DhnkY2ee+lcPVd1+raV7Zwb+40SB?= =?us-ascii?Q?AnLVpuyTMwvqknoMpCvAhXI+1dhOReMlX1WQWJY2NTpHJQkibn35eLdQ/7JU?= =?us-ascii?Q?VWHGdLbEIhr1m2MH5Thl2d4MDIdM0d9kVZ8loqB0oCrZDM8Liorn2IRqu/Qm?= =?us-ascii?Q?KQH+1zL9CLHE/wGe3afEv6zQ81MAh8VV8dWoW/msqWk3bNnZpZa/CyCJ5yYR?= =?us-ascii?Q?+MERNcGsNJIdO24V72zdQ16EUfuNG2ZS2XUOuG4ugR/W7neg80B+eDa0tx8C?= =?us-ascii?Q?m/FW0YhATpbStioPOS3uOEorKNWZq93wscHIpWGE+Ume/vTu2BxdTktM7u4h?= =?us-ascii?Q?eUuqYVPWHVffmoaeWxfSD0ZGVhCsJdvPbVtrM1/ZrfbgsE3SkYHwhcmpl6k0?= =?us-ascii?Q?j+hxc2bFhweehwqEi1UlFTYxFlVPUEfN3BqprKeQocnrZ7O33irfxg6R592W?= =?us-ascii?Q?D+ADpdqnMA29ppXpFC63oMGAsVxxdDeqzZfeNKzZCmkFGiE4aytOgeLPyVEq?= =?us-ascii?Q?FSq5KM1qYocuSLLqWkdkA85fOrxhTbu4p2auac8cyETdv0AmRgsUf58IKc5q?= =?us-ascii?Q?Q217LZHovqaWRjGq+SUiNHJAQWKANOemvpgjpLHHKECfcmUeKsTExJ87zGoU?= =?us-ascii?Q?jvMO0tqeTGeVYBAJlAn/HVTCFPdHNL+C+3hTP6aE8LVhObssUBkYzN8Uv7au?= =?us-ascii?Q?bgakR0BI7bFdacr4pdLPkSda6KNo6VuVRO8bpTdH8aDzVdxd3322Qcu04RRO?= =?us-ascii?Q?ZxAT9Wr3Kd81ce/BIEW35lNkldrN7QXq5N+d1MXmnn7k5vAbw/ENcrfp/+ub?= =?us-ascii?Q?XhF3lfQ/iyU7qPAcuRX8/kOKEIG/I3il/XRsgW0MpAZLuF/1RdtXzbFDac66?= =?us-ascii?Q?nnBu9jDmz/2LhOzlsK/GvaeDdHanhRYDNjsX8vS+kofOc45Q+hgmOVoefYDk?= =?us-ascii?Q?ixhWB+IFuYA1+aRJlV+CTMcIuGr2uaypfPfeuJO7jlgTrzeltKlviWfmm7lx?= =?us-ascii?Q?b7ZSPswUgPa4uqb3T3m5HTzXcODk3XeSkic0D7c6SsGWxpE7kOrqpNCYqDBn?= =?us-ascii?Q?QlfLtNwrQzswIGyYcS5YazLLmGOfH1kCXxHH5AviQ3MA4ZTz+8pRd3cXxsGC?= =?us-ascii?Q?/hVw0RcqhCZdP92IcPQrEpFO1PfWJXQ4jCBuz6+NpXiA19NOLpnCbSPqffvd?= =?us-ascii?Q?Oej4yHrd9KpZ73R7cZMOltLg5jGu3aCvjkoslVcJQjiPUqhjlseUA9FLAVdL?= =?us-ascii?Q?UxYtO3FI5fVkfHpfyhx+Ym5wJZENdoetMbdOQa2FZaKqh+ZUkAT42ju4cUML?= =?us-ascii?Q?YuXkGeDUt0VadBBjLNYLw62nQPfA7hXWr+9sKIQTNDum+zUWVJcf6FjhgODl?= =?us-ascii?Q?qYYkF2RaNJEY0GENhJI=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)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Nov 2025 04:16:25.9820 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 58053855-0083-4ca5-b701-08de1db46b0c 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: DS3PEPF0000C37A.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9332 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