vfio/mlx5: Set the driver DMA logging callbacks

Now that everything is ready set the driver DMA logging callbacks if
supported by the device.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20220908183448.195262-11-yishaih@nvidia.comSigned-off-by: Alex Williamson <alex.williamson@redhat.com>

drivers/vfio/pci/mlx5/cmd.c

@@ -126,7 +126,8 @@ void mlx5vf_cmd_remove_migratable(struct mlx5vf_pci_core_device *mvdev)
 }
 
 void mlx5vf_cmd_set_migratable(struct mlx5vf_pci_core_device *mvdev,
-			       const struct vfio_migration_ops *mig_ops)
+			       const struct vfio_migration_ops *mig_ops,
+			       const struct vfio_log_ops *log_ops)
 {
 	struct pci_dev *pdev = mvdev->core_device.pdev;
 	int ret;
@@ -169,6 +170,8 @@ void mlx5vf_cmd_set_migratable(struct mlx5vf_pci_core_device *mvdev,
 		VFIO_MIGRATION_P2P;
 	mvdev->core_device.vdev.mig_ops = mig_ops;
 	init_completion(&mvdev->tracker_comp);
+	if (MLX5_CAP_GEN(mvdev->mdev, adv_virtualization))
+		mvdev->core_device.vdev.log_ops = log_ops;
 
 end:
 	mlx5_vf_put_core_dev(mvdev->mdev);

drivers/vfio/pci/mlx5/cmd.h

@@ -118,7 +118,8 @@ int mlx5vf_cmd_resume_vhca(struct mlx5vf_pci_core_device *mvdev, u16 op_mod);
 int mlx5vf_cmd_query_vhca_migration_state(struct mlx5vf_pci_core_device *mvdev,
 					  size_t *state_size);
 void mlx5vf_cmd_set_migratable(struct mlx5vf_pci_core_device *mvdev,
-			       const struct vfio_migration_ops *mig_ops);
+			       const struct vfio_migration_ops *mig_ops,
+			       const struct vfio_log_ops *log_ops);
 void mlx5vf_cmd_remove_migratable(struct mlx5vf_pci_core_device *mvdev);
 void mlx5vf_cmd_close_migratable(struct mlx5vf_pci_core_device *mvdev);
 int mlx5vf_cmd_save_vhca_state(struct mlx5vf_pci_core_device *mvdev,

drivers/vfio/pci/mlx5/main.c

@@ -579,6 +579,12 @@ static const struct vfio_migration_ops mlx5vf_pci_mig_ops = {
 	.migration_get_state = mlx5vf_pci_get_device_state,
 };
 
+static const struct vfio_log_ops mlx5vf_pci_log_ops = {
+	.log_start = mlx5vf_start_page_tracker,
+	.log_stop = mlx5vf_stop_page_tracker,
+	.log_read_and_clear = mlx5vf_tracker_read_and_clear,
+};
+
 static const struct vfio_device_ops mlx5vf_pci_ops = {
 	.name = "mlx5-vfio-pci",
 	.open_device = mlx5vf_pci_open_device,
@@ -602,7 +608,8 @@ static int mlx5vf_pci_probe(struct pci_dev *pdev,
 	if (!mvdev)
 		return -ENOMEM;
 	vfio_pci_core_init_device(&mvdev->core_device, pdev, &mlx5vf_pci_ops);
-	mlx5vf_cmd_set_migratable(mvdev, &mlx5vf_pci_mig_ops);
+	mlx5vf_cmd_set_migratable(mvdev, &mlx5vf_pci_mig_ops,
+				  &mlx5vf_pci_log_ops);
 	dev_set_drvdata(&pdev->dev, &mvdev->core_device);
 	ret = vfio_pci_core_register_device(&mvdev->core_device);
 	if (ret)