[dpdk-dev] [PATCH 0/2] vhost: fix VIRTIO_NET_F_MQ vhost_scsi breakage

[Stefan Hajnoczi <stefanha@redhat.com>]

These patches fix a recent regression in librte_vhost that breaks the
vhost_scsi example application.  vhost_user.c assumes all devices are vhost net
backends when handling the VIRTIO_NET_F_MQ feature bit.  The code is triggered
by vhost scsi devices and causes virtqueues to be removed.  See Patch 2 for
details.

Patch 1 puts the infrastructure in place to distinguish between the built-in
virtio_net.c driver and generic vhost device backend usage.

Patch 2 fixes the regression by handling VIRTIO_NET_F_MQ only when the built-in
virtio_net.c driver is in use.

Stefan Hajnoczi (2):
  vhost: add flag for built-in virtio_net.c driver
  vhost: only drop vqs with built-in virtio_net.c driver

 lib/librte_vhost/vhost.h      |  3 +++
 lib/librte_vhost/socket.c     | 15 +++++++++++++++
 lib/librte_vhost/vhost.c      | 17 ++++++++++++++++-
 lib/librte_vhost/vhost_user.c |  3 ++-
 lib/librte_vhost/virtio_net.c | 14 ++++++++++++++
 5 files changed, 50 insertions(+), 2 deletions(-)

-- 
2.14.3