[Qemu-devel] [RFC v3 00/12] packed ring virtio-net userspace backend support

[wexu]

From: Wei Xu <address@hidden>

code base:
https://github.com/Whishay/qemu.git

Todo:
- migration has not been support yet

v2->v3
- addressed performance issue
- fixed feedback from v2

v1->v2
- sync to tiwei's v5
- reuse memory cache function with 1.0
- dropped detach patch and notification helper(04 & 05 in v1)
- guest virtio-net driver unload/reload support
- event suppression support(not tested)
- addressed feedback from v1

Wei Xu (12):
  virtio: introduce packed ring definitions
  virtio: redefine structure & memory cache for packed ring
  virtio: init memory cache for packed ring
  virtio: init wrap counter for packed ring
  virtio: init and desc empty check for packed ring
  virtio: get avail bytes check for packed ring
  virtio: fill/flush/pop for packed ring
  virtio: event suppression support for packed ring
  virtio-net: fill head desc after done all in a chain
  virtio: packed ring feature bit for userspace backend
  virtio: enable packed ring via a new command line
  virtio: feature vhost-net support for packed ring

 hw/net/vhost_net.c                             |   1 +
 hw/net/virtio-net.c                            |  11 +-
 hw/virtio/vhost.c                              |  19 +-
 hw/virtio/virtio.c                             | 685 +++++++++++++++++++++++--
 include/hw/virtio/virtio.h                     |   9 +-
 include/standard-headers/linux/virtio_config.h |  15 +
 include/standard-headers/linux/virtio_ring.h   |  43 ++
 7 files changed, 736 insertions(+), 47 deletions(-)

-- 
1.8.3.1