vdpa/mlx5: Enable hw support for vq descriptor mapping

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Vq descriptor mappings are supported in hardware by filling in an
additional mkey which contains the descriptor mappings to the hw vq.

A previous patch in this series added support for hw mkey (mr) creation
for ASID 1.

This patch fills in both the vq data and vq descriptor mkeys based on
group ASID mapping.

The feature is signaled to the vdpa core through the presence of the
.get_vq_desc_group op.

Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20231018171456.1624030-16-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 20:14:53 +03:00 • committed by Michael S. Tsirkin

parent 55229eab8c

commit 03dd63c8fa

2 changed files with 29 additions and 2 deletions

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24

drivers/vdpa/mlx5/net/mlx5_vnet.c

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7

include/linux/mlx5/mlx5_ifc_vdpa.h

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