[PATCH 0/3] Add vhost-net kernel support

["Eugenio Pérez" <eperezma@redhat.com>]

vhost-net is a kernel device that allows to read packets from a tap
device using virtio queues instead of regular read(2) and write(2).
This enables a more eficient packet processing, as the memory can
be written directly by the kernel to the userspace and back, instead
of wasting bandwith on copies, and it enables to batch many packets
in a single notification (through eventfds) both tx and rx.

---
RFC: At this moment only to receive packets from the vhost kernel to
the pasta binary is supported. It does not even support to refill more
rx descriptors so the kernel can keep receiving packets! Just for early
review to make sure we're on the same page.

Eugenio Pérez (3):
  tap: specify the packet pool
  tap: implement vhost_call_cb
  tap: add die() on vhost error

 epoll_type.h |   4 +
 passt.c      |   8 ++
 passt.h      |  13 +-
 tap.c        | 366 +++++++++++++++++++++++++++++++++++++++++++++++++--
 tap.h        |   6 +-
 vu_common.c  |   7 +-
 6 files changed, 387 insertions(+), 17 deletions(-)

-- 
2.49.0