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vdpa/mlx5: Delete control vq iotlb in destroy_mr only when necessary

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mlx5_vdpa_destroy_mr can be called from .set_map with data ASID after
the control virtqueue ASID iotlb has been populated. The control vq
iotlb must not be cleared, since it will not be populated again.

So call the ASID aware destroy function which makes sure that the
right vq resource is destroyed.

Fixes: 8fcd20c307 ("vdpa/mlx5: Support different address spaces for control and data")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Message-Id: <20230802171231.11001-5-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Eugenio Pérez 2023-08-02 20:12:20 +03:00 • committed by Michael S. Tsirkin
parent 9ee811009a
commit ad03a0f44c
3 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/vdpa/mlx5/core/mlx5_vdpa.h
View file

@ -122,6 +122,7 @@ int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *io
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);
#define mlx5_vdpa_warn(__dev, format, ...) \
dev_warn((__dev)->mdev->device, "%s:%d:(pid %d) warning: " format, __func__, __LINE__, \

2
drivers/vdpa/mlx5/core/mr.c
View file

@ -515,7 +515,7 @@ static void _mlx5_vdpa_destroy_dvq_mr(struct mlx5_vdpa_dev *mvdev, unsigned int
mr->initialized = false;
}
static void mlx5_vdpa_destroy_mr_asid(struct mlx5_vdpa_dev *mvdev, unsigned int asid)
void mlx5_vdpa_destroy_mr_asid(struct mlx5_vdpa_dev *mvdev, unsigned int asid)
{
struct mlx5_vdpa_mr *mr = &mvdev->mr;

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

@ -2644,7 +2644,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
goto err_mr;
teardown_driver(ndev);
mlx5_vdpa_destroy_mr(mvdev);
mlx5_vdpa_destroy_mr_asid(mvdev, asid);
err = mlx5_vdpa_create_mr(mvdev, iotlb, asid);
if (err)
goto err_mr;
@ -2660,7 +2660,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
return 0;
err_setup:
mlx5_vdpa_destroy_mr(mvdev);
mlx5_vdpa_destroy_mr_asid(mvdev, asid);
err_mr:
return err;
}