[PATCH v2 00/20] 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 (20):
  arp: Don't mix incoming and outgoing buffers
  iov: Introduce iov_tail_drop() and iov_slice()
  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: move offset initialization out of dhcpv6_opt()
  dhcpv6: Extract sending of NotOnLink status
  dhcpv6: Convert to iov_tail
  dhcpv6: Use iov_tail in dhcpv6_opt()
  dhcp: Convert to iov_tail
  ip: Use iov_tail in ipv6_l4hdr()
  tap: Convert tap4_handler() to iov_tail
  tap: Convert tap6_handler() to iov_tail

 arp.c       |  90 ++++++++++++++-------
 dhcp.c      |  45 ++++++-----
 dhcpv6.c    | 222 ++++++++++++++++++++++++++++++++--------------------
 icmp.c      |  32 ++++----
 iov.c       | 139 +++++++++++++++++++++++++++++---
 iov.h       |  59 ++++++++++----
 ip.c        |  27 +++----
 ip.h        |   3 +-
 ndp.c       |   7 +-
 packet.c    |  84 ++++++++------------
 packet.h    |  21 ++---
 pcap.c      |   1 +
 tap.c       |  88 ++++++++++++++-------
 tap.h       |   3 +-
 tcp.c       |  61 ++++++++++-----
 tcp_buf.c   |   2 +-
 udp.c       |  34 +++++---
 vu_common.c |  26 ++----
 18 files changed, 609 insertions(+), 335 deletions(-)

-- 
2.49.0