[PATCH 00/18] Introduce discontiguous frames management

[Laurent Vivier <lvivier@redhat.com>]

This series introduces iov_tail to convey frame information
between functions.

This is only an API change, for the moment the memory pool
is only able to store contiguous buffer, so, except for
vhost-user in a special case, we only play with iovec array
with only one entry.

Laurent Vivier (18):
  arp: Don't mix incoming and outgoing buffers
  iov: Update IOV_REMOVE_HEADER() and IOV_PEEK_HEADER()
  tap: Use iov_tail with tap_add_packet()
  packet: Use iov_tail with packet_add()
  packet: Add packet_base()
  arp: Convert to iov_tail
  ndp: Convert to iov_tail
  icmp: Convert to iov_tail
  udp: Convert to iov_tail
  tcp: Convert tcp_tap_handler() to use iov_tail
  tcp: Convert tcp_data_from_tap() to use iov_tail
  dhcpv6: Convert to iov_tail
  dhcpv6: move offset initialization out of dhcpv6_opt()
  dhcpv6: Use iov_tail in dhcpv6_opt()
  dhcp: Convert to iov_tail
  tap: Convert to iov_tail
  ip: Use iov_tail in ipv6_l4hdr()
  tap: Convert to iov_tail

 arp.c       |  90 ++++++++++++++++++++++++------------
 dhcp.c      |  38 ++++++++-------
 dhcpv6.c    |  70 +++++++++++++++-------------
 icmp.c      |  38 +++++++++------
 iov.c       | 130 ++++++++++++++++++++++++++++++++++++++++++++++++----
 iov.h       |  54 ++++++++++++++++------
 ip.c        |  27 +++++------
 ip.h        |   3 +-
 ndp.c       |   7 ++-
 packet.c    |  58 ++++++++++-------------
 packet.h    |  19 ++++----
 pcap.c      |   1 +
 tap.c       |  86 ++++++++++++++++++++++------------
 tap.h       |   2 +-
 tcp.c       |  41 +++++++++++------
 tcp_buf.c   |   2 +-
 udp.c       |  37 ++++++++++-----
 vu_common.c |  25 ++--------
 18 files changed, 474 insertions(+), 254 deletions(-)

-- 
2.49.0