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Wed, 27 Apr 2022 02:31:55 -0700 From: Yishai Hadas To: , , CC: , , , , , , Subject: [PATCH mlx5-next 1/5] vfio/mlx5: Reorganize the VF is migratable code Date: Wed, 27 Apr 2022 12:31:16 +0300 Message-ID: <20220427093120.161402-2-yishaih@nvidia.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20220427093120.161402-1-yishaih@nvidia.com> References: <20220427093120.161402-1-yishaih@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: ae572416-f0ba-46c2-430f-08da2830c754 X-MS-TrafficTypeDiagnostic: MWHPR12MB1614:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.236;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230001)(4636009)(40470700004)(46966006)(36840700001)(508600001)(316002)(6666004)(110136005)(4326008)(47076005)(8676002)(356005)(40460700003)(86362001)(70586007)(81166007)(70206006)(54906003)(6636002)(336012)(426003)(5660300002)(7696005)(2906002)(36756003)(82310400005)(83380400001)(26005)(186003)(8936002)(1076003)(2616005)(36860700001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Apr 2022 09:31:59.2826 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ae572416-f0ba-46c2-430f-08da2830c754 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.236];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT019.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1614 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Reorganize the VF is migratable code to be in a separate function, next patches from the series may use this. Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky --- drivers/vfio/pci/mlx5/cmd.c | 18 ++++++++++++++++++ drivers/vfio/pci/mlx5/cmd.h | 1 + drivers/vfio/pci/mlx5/main.c | 22 +++++++--------------- 3 files changed, 26 insertions(+), 15 deletions(-) diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c index 5c9f9218cc1d..d608b8167f58 100644 --- a/drivers/vfio/pci/mlx5/cmd.c +++ b/drivers/vfio/pci/mlx5/cmd.c @@ -71,6 +71,24 @@ int mlx5vf_cmd_query_vhca_migration_state(struct pci_dev *pdev, u16 vhca_id, return ret; } +bool mlx5vf_cmd_is_migratable(struct pci_dev *pdev) +{ + struct mlx5_core_dev *mdev = mlx5_vf_get_core_dev(pdev); + bool migratable = false; + + if (!mdev) + return false; + + if (!MLX5_CAP_GEN(mdev, migration)) + goto end; + + migratable = true; + +end: + mlx5_vf_put_core_dev(mdev); + return migratable; +} + int mlx5vf_cmd_get_vhca_id(struct pci_dev *pdev, u16 function_id, u16 *vhca_id) { struct mlx5_core_dev *mdev = mlx5_vf_get_core_dev(pdev); diff --git a/drivers/vfio/pci/mlx5/cmd.h b/drivers/vfio/pci/mlx5/cmd.h index 1392a11a9cc0..2da6a1c0ec5c 100644 --- a/drivers/vfio/pci/mlx5/cmd.h +++ b/drivers/vfio/pci/mlx5/cmd.h @@ -29,6 +29,7 @@ int mlx5vf_cmd_resume_vhca(struct pci_dev *pdev, u16 vhca_id, u16 op_mod); int mlx5vf_cmd_query_vhca_migration_state(struct pci_dev *pdev, u16 vhca_id, size_t *state_size); int mlx5vf_cmd_get_vhca_id(struct pci_dev *pdev, u16 function_id, u16 *vhca_id); +bool mlx5vf_cmd_is_migratable(struct pci_dev *pdev); int mlx5vf_cmd_save_vhca_state(struct pci_dev *pdev, u16 vhca_id, struct mlx5_vf_migration_file *migf); int mlx5vf_cmd_load_vhca_state(struct pci_dev *pdev, u16 vhca_id, diff --git a/drivers/vfio/pci/mlx5/main.c b/drivers/vfio/pci/mlx5/main.c index bbec5d288fee..2578f61eaeae 100644 --- a/drivers/vfio/pci/mlx5/main.c +++ b/drivers/vfio/pci/mlx5/main.c @@ -597,21 +597,13 @@ static int mlx5vf_pci_probe(struct pci_dev *pdev, return -ENOMEM; vfio_pci_core_init_device(&mvdev->core_device, pdev, &mlx5vf_pci_ops); - if (pdev->is_virtfn) { - struct mlx5_core_dev *mdev = - mlx5_vf_get_core_dev(pdev); - - if (mdev) { - if (MLX5_CAP_GEN(mdev, migration)) { - mvdev->migrate_cap = 1; - mvdev->core_device.vdev.migration_flags = - VFIO_MIGRATION_STOP_COPY | - VFIO_MIGRATION_P2P; - mutex_init(&mvdev->state_mutex); - spin_lock_init(&mvdev->reset_lock); - } - mlx5_vf_put_core_dev(mdev); - } + if (pdev->is_virtfn && mlx5vf_cmd_is_migratable(pdev)) { + mvdev->migrate_cap = 1; + mvdev->core_device.vdev.migration_flags = + VFIO_MIGRATION_STOP_COPY | + VFIO_MIGRATION_P2P; + mutex_init(&mvdev->state_mutex); + spin_lock_init(&mvdev->reset_lock); } ret = vfio_pci_core_register_device(&mvdev->core_device); -- 2.18.1