netdev - [PATCH v3 net-next 0/8] Local Checksum Offload

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Message-ID: <56901197.8040808@solarflare.com>
Date:	Fri, 8 Jan 2016 19:44:23 +0000
From:	Edward Cree <ecree@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>,
	<tom@...bertland.com>, <alexander.duyck@...il.com>
Subject: [PATCH v3 net-next 0/8] Local Checksum Offload

Tested with a VXLAN tunnel over a device that doesn't support inner checksum
 offload (so the checksum will have been done in sw by validate_xmit_skb()).

Changes from v2:
 * Added support for IPv4 GRE.
 * Split out 'always set up for checksum offload' into its own patch.
 * Removed csum_help from iptunnel_handle_offloads.
 * Rewrote LCO callers to only fold once.
 * Simplified nocheck handling.

Changes from v1:
 * Enabled support in more encapsulation protocols.
   I think it now covers everything except GRE.
 * Wrote up some documentation covering TX checksum offload, LCO and RCO.

Edward Cree (8):
  net: local checksum offload for encapsulation
  net: udp: always set up for CHECKSUM_PARTIAL offload
  net: enable LCO for udp_tunnel_handle_offloads() users
  net: vxlan: enable local checksum offload
  fou: enable LCO in FOU and GUE
  net: gre: Implement LCO for GRE over IPv4
  net: ip_tunnel: remove 'csum_help' argument to
    iptunnel_handle_offloads
  Documentation/networking: add checksum-offloads.txt to explain LCO

 Documentation/networking/00-INDEX              |   2 +
 Documentation/networking/checksum-offloads.txt | 119 +++++++++++++++++++++++++
 drivers/net/vxlan.c                            |  18 ++--
 include/linux/skbuff.h                         |  26 ++++++
 include/net/ip_tunnels.h                       |   3 +-
 include/net/udp_tunnel.h                       |   2 +-
 net/ipv4/fou.c                                 |  14 ++-
 net/ipv4/ip_gre.c                              |  20 ++++-
 net/ipv4/ip_tunnel_core.c                      |  15 +---
 net/ipv4/ipip.c                                |   2 +-
 net/ipv4/udp.c                                 |  28 ++----
 net/ipv6/ip6_checksum.c                        |  23 ++---
 net/ipv6/sit.c                                 |   4 +-
 net/netfilter/ipvs/ip_vs_xmit.c                |   6 +-
 14 files changed, 197 insertions(+), 85 deletions(-)
 create mode 100644 Documentation/networking/checksum-offloads.txt