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Tue, 9 Mar 2021 08:34:40 +0000 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 9 Mar 2021 08:34:39 +0000 Received: from r-nvmx02.mtr.labs.mlnx (172.20.145.6) by mail.nvidia.com (172.20.187.18) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 9 Mar 2021 08:34:33 +0000 From: Max Gurtovoy To: , , , , CC: , , , , , , , , , , , , , , , Max Gurtovoy Subject: [PATCH 6/9] vfio-pci-core: export vfio_pci_register_dev_region function Date: Tue, 9 Mar 2021 08:33:54 +0000 Message-ID: <20210309083357.65467-7-mgurtovoy@nvidia.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210309083357.65467-1-mgurtovoy@nvidia.com> References: <20210309083357.65467-1-mgurtovoy@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 743bc449-4e82-4f16-6000-08d8e2d62e75 X-MS-TrafficTypeDiagnostic: MWHPR12MB1632: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6108; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Mar 2021 08:34:40.1719 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 743bc449-4e82-4f16-6000-08d8e2d62e75 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.32];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT004.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1632 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This function will be used to allow vendor drivers to register regions to be used and accessed by the core subsystem driver. This way, the core will use the region ops that are vendor specific and managed by the vendor vfio-pci driver. Next step that can be made is to move the logic of igd and nvlink2 to a dedicated module instead of managing their vendor specific extensions in the core driver. Signed-off-by: Max Gurtovoy --- drivers/vfio/pci/vfio_pci_core.c | 1 + drivers/vfio/pci/vfio_pci_core.h | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index 7b6be1e4646f..ba5dd4321487 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -711,6 +711,7 @@ int vfio_pci_register_dev_region(struct vfio_pci_core_device *vdev, return 0; } +EXPORT_SYMBOL_GPL(vfio_pci_register_dev_region); struct vfio_devices { struct vfio_device **devices; diff --git a/drivers/vfio/pci/vfio_pci_core.h b/drivers/vfio/pci/vfio_pci_core.h index 46eb3443125b..60b42df6c519 100644 --- a/drivers/vfio/pci/vfio_pci_core.h +++ b/drivers/vfio/pci/vfio_pci_core.h @@ -257,4 +257,9 @@ int vfio_pci_core_sriov_configure(struct pci_dev *pdev, int nr_virtfn); extern const struct pci_error_handlers vfio_pci_core_err_handlers; +int vfio_pci_register_dev_region(struct vfio_pci_core_device *vdev, + unsigned int type, unsigned int subtype, + const struct vfio_pci_regops *ops, + size_t size, u32 flags, void *data); + #endif /* VFIO_PCI_CORE_H */ -- 2.25.4