[dpdk-dev] [PATCH 0/8] net/virtio: fix queue reconfigure issue

[Yuanhan Liu]

This patchset fixes an issue (virtio/vhost become broken when queue setup
is done 2 or more times, check patch 2 for great details) reported by Ilya
at the late stage of last release. I sensed it would be some amounts of
code work, that I delayed it to this release. However, I failed to make
the fix in the early stage of this release, that we come to the same
situation again: we are being at the late stage of v16.11 :(

However, honestly, I don't want to miss it again in this release, as it
is hard to backport such fix to a stable release. It's not a bug can
be fixed by few lines of code. The virtio init logic is quite wrong that
I need change quite many places to fix it. Meanwhile, I have done my best
to keep the change being as minimal as possible.

Besides that, judging that v16.11 would be a LTS and it's such an severe
bug that should be fixed ASAP (at least, we should make it work in a LTS
release), I then tried hard today to make this patchset, with the hope we
could fix this severe issue at this release.

The issue is decribed in length in patch 4 "net/virtio: allocate queue
at init stage".

Again, it's not a bug can be fixed by one patch, that you see no one
"fix" tag in none of those patches. All below patches work together
to fix this issue.

Thanks.

	--yliu


---
Yuanhan Liu (8):
  net/virtio: revert "virtio: fix restart"
  net/virtio: simplify queue memzone name
  net/virtio: simplify queue allocation
  net/virtio: allocate queue at init stage
  net/virtio: initiate vring at init stage
  net/virtio: move queue configure code to proper place
  net/virtio: complete init stage at the right place
  net/virtio: remove started field

 drivers/net/virtio/virtio_ethdev.c | 182 ++++++++++++++++-----------
 drivers/net/virtio/virtio_ethdev.h |  10 --
 drivers/net/virtio/virtio_pci.h    |   3 +-
 drivers/net/virtio/virtio_rxtx.c   | 247 ++++++++++++++-----------------------
 drivers/net/virtio/virtqueue.h     |   7 ++
 5 files changed, 208 insertions(+), 241 deletions(-)

-- 
1.9.0