[PATCH v2 0/3] vhost_vdpa: better PACKED support

Shannon Nelson
2023-04-24T22:50:28Z

While testing our vDPA driver with QEMU we found that vhost_vdpa was
missing some support for PACKED VQs.  Adding these helped us get further
in our testing.  The first patch makes sure that the vhost_vdpa vqs are
given the feature flags, as done in other vhost variants.  The second
and third patches use the feature flags to properly format and pass
set/get_vq requests.

v1:
 - included wrap counter in packing answers for VHOST_GET_VRING_BASE
 - added comments to vhost_virtqueue fields last_avail_idx and last_used_idx

v0:

https://lists.linuxfoundation.org/pipermail/virtualization/2023-April/066253.html
 - initial version

Shannon Nelson (3):
  vhost_vdpa: tell vqs about the negotiated
  vhost: support PACKED when setting-getting vring_base
  vhost_vdpa: support PACKED when setting-getting vring_base

 drivers/vhost/vdpa.c  | 34 ++++++++++++++++++++++++++++++----
 drivers/vhost/vhost.c | 18 +++++++++++++-----
 drivers/vhost/vhost.h |  8 ++++++--
 3 files changed, 49 insertions(+), 11 deletions(-)

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2.17.1