[PATCH v2 0/2] vhost: add VDUSE reconnection support

[Maxime Coquelin]

This series adds support for VDUSE reconnection.

First patch introduces the reconnection file layout and
track the virtqueues available index updates in the
datapath and control queue.

Second patch adds VDUSE reconnect intialization and some
sanity checks to prevent incompatible reconnections.

Changes in v2:
==============
- Added more sanity checks at reconnection
- Improve versionning
- Fix error loggin (Chenbo)
- Clarify why offloading device start is required (Chenbo)
- Change runtime path to <RUNPATH>/vduse instead of <RUNPATH>/dpdk/vduse

Maxime Coquelin (2):
  vhost: add logging mechanism for reconnection
  vhost: add reconnection support to VDUSE

 lib/vhost/vduse.c           | 308 +++++++++++++++++++++++++++++++-----
 lib/vhost/vhost.h           |  41 ++++-
 lib/vhost/virtio_net.c      |   8 +
 lib/vhost/virtio_net_ctrl.c |   2 +
 4 files changed, 316 insertions(+), 43 deletions(-)

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2.46.0