netdev - [PATCH net-next 00/13] ipv6: Enable GUEoIPv6 and more fixes for v6 tunneling

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Message-ID: <1462985253-2380625-1-git-send-email-tom@herbertland.com>
Date:	Wed, 11 May 2016 09:47:20 -0700
From:	Tom Herbert <tom@...bertland.com>
To:	<davem@...emloft.net>, <netdev@...r.kernel.org>
CC:	<kernel-team@...com>
Subject: [PATCH net-next 00/13] ipv6: Enable GUEoIPv6 and more fixes for v6 tunneling

This patch set:
  - Adds support for GSO and GRO for ip6ip6 and ip4ip6
  - Add support for FOU and GUE in IPv6
  - Support GRE, ip6ip6 and ip4ip6 over FOU/GUE
  - Fixes ip6_input to deal with UDP encapsulations
  - Some other minor fixes

v2:
  - Removed a check of GSO types in MPLS
  - Define GSO type SKB_GSO_IPXIP6 and SKB_GSO_IPXIP4 (based on input
    from Alexander)
  - Don't define GSO types specifally for IP6IP6 and IP4IP6, above
    fix makes that uncessary
  - Don't bother clearing encapsulation flag in UDP tunnel segment
    (another item suggested by Alexander).

v3:
  - Address some minor comments from Alexander

v4:
  - Rebase on changes to fix IP TX tunnels
  - Fix MTU issues in ip4ip6, ip6ip6
  - Add test data for above

Tested:
   Tested a variety of case, but not the full matrix (which is quite
   large now). Most of the obivous cases (e.g. GRE) work fine. Still
   some issues probably with GSO/GRO being effective in all cases.

    - IPv4/GRE/GUE/IPv6 with RCO
      1 TCP_STREAM
      	6616 Mbps
      200 TCP_RR
	1244043 tps
        141/243/446 90/95/99% latencies
	86.61% CPU utilization

    - IPv6/GRE/GUE/IPv6 with RCO
      1 TCP_STREAM
	6940 Mbps
      200 TCP_RR
	1270903 tps
	138/236/440 90/95/99% latencies
	87.51% CPU utilization

     - IP6IP6
      1 TCP_STREAM
	2576 Mbps
      200 TCP_RR
	498981 tps
	388/498/631 90/95/99% latencies
	19.75% CPU utilization (1 CPU saturated)

     - IP6IP6/GUE with RCO
      1 TCP_STREAM
	2031 Mbps
      200 TCP_RR
	1233818 tps
	143/244/451 90/95/99% latencies
	87.57 CPU utilization

     - IP4IP6
      1 TCP_STREAM
	2371 Mbps
      200 TCP_RR
	763774 tps
	250/318/466 90/95/99% latencies
	35.25% CPU utilization (1 CPU saturated)

     - IP4IP6/GUE with RCO
      1 TCP_STREAM
	2054 Mbps
      200 TCP_RR
	1196385 tps
	148/251/460 90/95/99% latencies
	87.56 CPU utilization

     - GRE with keyid
      200 TCP_RR
	744173 tps
	258/332/461 90/95/99% latencies
	34.59% CPU utilization (1 CPU saturated)
      

Tom Herbert (13):
  gso: Remove arbitrary checks for unsupported GSO
  net: define gso types for IPx over IPv4 and IPv6
  fou: Call setup_udp_tunnel_sock
  fou: Split out {fou,gue}_build_header
  fou: Add encap ops for IPv6 tunnels
  ipv6: Fix nexthdr for reinjection
  ipv6: Change "final" protocol processing for encapsulation
  fou: Support IPv6 in fou
  ip6_tun: Add infrastructure for doing encapsulation
  ip6_gre: Add support for fou/gue encapsulation
  ip6_tunnel: Add support for fou/gue encapsulation
  ip6ip6: Support for GSO/GRO
  ip4ip6: Support for GSO/GRO

 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c  |   5 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt.c         |   4 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c       |   3 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.c       |   3 +-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c     |   3 +-
 drivers/net/ethernet/intel/i40evf/i40evf_main.c   |   3 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c     |   3 +-
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |   3 +-
 include/linux/netdev_features.h                   |  12 +-
 include/linux/netdevice.h                         |   4 +-
 include/linux/skbuff.h                            |   4 +-
 include/net/fou.h                                 |  10 +-
 include/net/inet_common.h                         |   5 +
 include/net/ip6_tunnel.h                          |  22 +++-
 net/core/ethtool.c                                |   4 +-
 net/ipv4/af_inet.c                                |  32 ++---
 net/ipv4/fou.c                                    | 144 +++++++++++++---------
 net/ipv4/gre_offload.c                            |  14 ---
 net/ipv4/ipip.c                                   |   2 +-
 net/ipv4/tcp_offload.c                            |  19 ---
 net/ipv4/udp_offload.c                            |  10 --
 net/ipv6/Makefile                                 |   4 +-
 net/ipv6/fou6.c                                   | 140 +++++++++++++++++++++
 net/ipv6/ip6_gre.c                                |  77 +++++++++++-
 net/ipv6/ip6_input.c                              |  24 +++-
 net/ipv6/ip6_offload.c                            |  77 ++++++++----
 net/ipv6/ip6_tunnel.c                             | 116 +++++++++++++++--
 net/ipv6/ip6_tunnel_core.c                        | 108 ++++++++++++++++
 net/ipv6/sit.c                                    |   4 +-
 net/ipv6/udp_offload.c                            |  13 --
 net/mpls/mpls_gso.c                               |   9 --
 net/netfilter/ipvs/ip_vs_xmit.c                   |  17 ++-
 32 files changed, 662 insertions(+), 236 deletions(-)
 create mode 100644 net/ipv6/fou6.c
 create mode 100644 net/ipv6/ip6_tunnel_core.c

-- 
2.8.0.rc2