[PATCH net-next 0/4] packet: tpacket gso and csum offload

[Willem de Bruijn <willemdebruijn.kernel@gmail.com>]

From: Willem de Bruijn <willemb@google.com>

Extend PACKET_VNET_HDR socket option support to packet sockets with
memory mapped rings (PACKET_RX_RING, PACKET_TX_RING).

Patches 2 and 4 add support to tpacket_rcv and tpacket_snd.

Patch 1 prepares for this by moving the relevant virtio_net_hdr
logic out of packet_snd and packet_rcv into helper functions.

GSO transmission requires all headers in the skb linear section.
Patch 3 moves parsing of tx_ring slot headers before skb allocation
to enable allocation with sufficient linear size.

Willem de Bruijn (4):
  packet: move vnet_hdr code to helper functions
  packet: vnet_hdr support for tpacket_rcv
  packet: parse tpacket header before skb alloc
  packet: tpacket_snd gso and checksum offload

 net/packet/af_packet.c | 438 +++++++++++++++++++++++++++++--------------------
 1 file changed, 262 insertions(+), 176 deletions(-)

-- 
2.7.0.rc3.207.g0ac5344