vdpa/mlx5: Update cvq iotlb mapping on ASID change

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For the following sequence:
- cvq group is in ASID 0
- .set_map(1, cvq_iotlb)
- .set_group_asid(cvq_group, 1)

... the cvq mapping from ASID 0 will be used. This is not always correct
behaviour.

This patch adds support for the above mentioned flow by saving the iotlb
on each .set_map and updating the cvq iotlb with it on a cvq group change.

Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20231018171456.1624030-18-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 20:14:55 +03:00 • committed by Michael S. Tsirkin

parent cf6e024cf7

commit 5dc31bd245

3 changed files with 36 additions and 1 deletions

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2

drivers/vdpa/mlx5/core/mlx5_vdpa.h

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26

drivers/vdpa/mlx5/core/mr.c

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9

drivers/vdpa/mlx5/net/mlx5_vnet.c

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