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vdpa/mlx5: Create helper function for dma mappings

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Necessary for upcoming cvq separation from mr allocation.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20231018171456.1624030-7-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Tested-by: Si-Wei Liu <si-wei.liu@oracle.com>
Tested-by: Lei Yang <leiyang@redhat.com>
This commit is contained in:
Dragos Tatulea 2023-10-18 20:14:44 +03:00 committed by Michael S. Tsirkin
parent c8068d9bae
commit 049cbeab86
3 changed files with 8 additions and 2 deletions
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1
drivers/vdpa/mlx5/core/mlx5_vdpa.h
View file

@ -120,6 +120,7 @@ int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
unsigned int asid);
void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev);
void mlx5_vdpa_destroy_mr_asid(struct mlx5_vdpa_dev *mvdev, unsigned int asid);
int mlx5_vdpa_create_dma_mr(struct mlx5_vdpa_dev *mvdev);
#define mlx5_vdpa_warn(__dev, format, ...) \
dev_warn((__dev)->mdev->device, "%s:%d:(pid %d) warning: " format, __func__, __LINE__, \

5
drivers/vdpa/mlx5/core/mr.c
View file

@ -619,3 +619,8 @@ int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *io
return err;
}
int mlx5_vdpa_create_dma_mr(struct mlx5_vdpa_dev *mvdev)
{
return mlx5_vdpa_create_mr(mvdev, NULL, 0);
}

4
drivers/vdpa/mlx5/net/mlx5_vnet.c
View file

@ -2880,7 +2880,7 @@ static int mlx5_vdpa_reset(struct vdpa_device *vdev)
++mvdev->generation;
if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
if (mlx5_vdpa_create_mr(mvdev, NULL, 0))
if (mlx5_vdpa_create_dma_mr(mvdev))
mlx5_vdpa_warn(mvdev, "create MR failed\n");
}
up_write(&ndev->reslock);
@ -3485,7 +3485,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
goto err_mpfs;
if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
err = mlx5_vdpa_create_mr(mvdev, NULL, 0);
err = mlx5_vdpa_create_dma_mr(mvdev);
if (err)
goto err_res;
}