[PATCH v2 0/7] Rework UDP buffers

[David Gibson <david@gibson.dropbear.id.au>]

Laurent recently reworked the TCP buffer handling to be split into
various pieces tracked by iovecs.  We'll want that for various future
changes.  This series makes a similar split for UDP buffers, which
we'll want in order to allow dual-stack UDP sockets, amongst other
things.

This is based on my earlier series of cleanups for the TCP buffer
handling.

Changes since v1:
 * Rebase on v2 of the TCP iov and buffer handling cleanups
 * Rename udp_payload and udp_meta structures to _t for more
   consistency with tcp.c
 * Other minor changes based on Stefano's review

David Gibson (7):
  test: Allow sftp via vsock-ssh in tests
  udp: Split tap-bound UDP packets into multiple buffers using io vector
  udp: Combine initialisation of IPv4 and IPv6 iovs
  udp: Explicitly set checksum in guest-bound UDP headers
  udp: Share payload buffers between IPv4 and IPv6
  udp: Use the same buffer for the L2 header for all frames
  udp: Single buffer for IPv4, IPv6 headers and metadata

 tap.h            |  38 ------
 test/passt.mbuto |   6 +-
 udp.c            | 299 +++++++++++++++++++++++------------------------
 3 files changed, 152 insertions(+), 191 deletions(-)

-- 
2.44.0