android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
[ Upstream commit ad03a0f44cdb97b46e5c84ed353dac9b8ae2c276 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eugenio Pérez 2023-08-02 20:12:20 +03:00 committed by Greg Kroah-Hartman
parent bb4983ec9e
commit cba26abc3f
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

@ -518,7 +518,7 @@ 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

@ -2406,7 +2406,7 @@ 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;
@ -2422,7 +2422,7 @@ 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;
}