[dpdk-dev] [PATCH v3 0/2] net/virtio-user: add packed vq support

[Jens Freimann <jfreimann@redhat.com>]

Revert patch to error out when cq is used with packed vq and
in second patch add support for packed virtqueues in control
virtqueue code.

Patch 1 fixes a bug in virtio_pq_send_command(). When we wait for
a descriptor to be marked as used we need to consider that the ring
might have wrapped and use the previous wrap counter.

v2->v3:
 * squash revert patch into patch 2
 * add new patch 1 to fix a bug in driver code
 * fix wrap handling code in virtio_user_handle_cq_packed
 * in v2 I was using wrap counters and indexes from shared virtqueue,
   fixed this and added wrap counters and used index to virtio_user code
 * tested wrap around of ring 

v1->v2:
 * split into two patches
 * handle ring wrap correctly
 * add to unsupported_features when packed_vq is 0

Jens Freimann (2):
  net/virtio: check head desc with correct wrap counter
  net/virtio-user: ctrl vq support for packed

 drivers/net/virtio/virtio_ethdev.c            |  11 +-
 .../net/virtio/virtio_user/virtio_user_dev.c  | 104 ++++++++++++++++--
 .../net/virtio/virtio_user/virtio_user_dev.h  |  15 ++-
 drivers/net/virtio/virtio_user_ethdev.c       |  56 +++++++++-
 drivers/net/virtio/virtqueue.h                |  10 +-
 5 files changed, 173 insertions(+), 23 deletions(-)

-- 
2.17.2