[Qemu-devel] [PATCH v2 0/4] libvhost-user: VHOST_USER_PROTOCOL_F_MQ support

[Stefan Hajnoczi]

v2:
 * Add missing dev->max_queues = max_queues assignment in vu_init() [dgilbert]
 * Folded in Marc-André's Reviewed-By

Sebastien Boeuf <address@hidden> pointed out that libvhost-user
doesn't advertise VHOST_USER_PROTOCOL_F_MQ.  Today this prevents vhost-user-net
multiqueue from working.

In virtio-fs we also want to support multiqueue so I'm sending patches to add
this.  It's free to advertise VHOST_USER_PROTOCOL_F_MQ for all devices so we
can do it unconditionally in libvhost-user.

Several related improvements are included:
Patch 1 - clean up duplicated and risky VhostUserMsg reply building code
Patch 2 - remove hardcoded 8 virtqueue limit in libvhost-user
Patch 4 - clarify vhost-user multiqueue specification

Stefan Hajnoczi (4):
  libvhost-user: add vmsg_set_reply_u64() helper
  libvhost-user: support many virtqueues
  libvhost-user: implement VHOST_USER_PROTOCOL_F_MQ
  docs: avoid vhost-user-net specifics in multiqueue section

 contrib/libvhost-user/libvhost-user-glib.h |  2 +-
 contrib/libvhost-user/libvhost-user.h      | 10 +++-
 contrib/libvhost-user/libvhost-user-glib.c | 12 +++-
 contrib/libvhost-user/libvhost-user.c      | 66 ++++++++++++++--------
 contrib/vhost-user-blk/vhost-user-blk.c    | 16 +++---
 contrib/vhost-user-gpu/main.c              |  9 ++-
 contrib/vhost-user-input/main.c            | 11 +++-
 contrib/vhost-user-scsi/vhost-user-scsi.c  | 21 +++----
 tests/vhost-user-bridge.c                  | 42 +++++++++-----
 docs/interop/vhost-user.rst                | 21 +++----
 10 files changed, 133 insertions(+), 77 deletions(-)

-- 
2.21.0