[PATCH net-next v6 0/5] Add MPLS actions to TC

[John Hurley <john.hurley@netronome.com>]

This patchset introduces a new TC action module that allows the
manipulation of the MPLS headers of packets. The code impliments
functionality including push, pop, and modify.

Also included are tests for the new funtionality. Note that these will
require iproute2 changes to be submitted soon.

NOTE: these patches are applied to net-next along with the patch:
[PATCH net 1/1] net: openvswitch: fix csum updates for MPLS actions
This patch has been accepted into net but, at time of posting, is not yet
in net-next.

v5-v6:
- add CONFIG_NET_ACT_MPLS to tc-testing config file - patch 5
  (Davide Caratti)
v4-v5:
- move mpls_hdr() call to after skb_ensure_writable - patch 3
  (Willem de Bruijn)
- move mpls_dec_ttl to helper - patch 4 (Willem de Bruijn)
- add iproute2 usage example to commit msg - patch 4 (David Ahern)
- align label validation with mpls core code - patch 4 (David Ahern)
- improve extack message for no proto in mpls pop - patch 4 (David Ahern)
v3-v4:
- refactor and reuse OvS code (Cong Wang)
- use csum API rather than skb_post*rscum to update skb->csum (Cong Wang)
- remove unnecessary warning (Cong Wang)
- add comments to uapi attributes (David Ahern)
- set strict type policy check for TCA_MPLS_UNSPEC (David Ahern)
- expand/improve extack messages (David Ahern)
- add option to manually set BOS
v2-v3:
- remove a few unnecessary line breaks (Jiri Pirko)
- retract hw offload patch from set (resubmit with driver changes) (Jiri)
v1->v2:
- ensure TCA_ID_MPLS does not conflict with TCA_ID_CTINFO (Davide Caratti)

John Hurley (5):
  net: core: move push MPLS functionality from OvS to core helper
  net: core: move pop MPLS functionality from OvS to core helper
  net: core: add MPLS update core helper and use in OvS
  net: sched: add mpls manipulation actions to TC
  selftests: tc-tests: actions: add MPLS tests

 include/linux/skbuff.h                             |   4 +
 include/net/tc_act/tc_mpls.h                       |  30 +
 include/uapi/linux/pkt_cls.h                       |   3 +-
 include/uapi/linux/tc_act/tc_mpls.h                |  33 +
 net/core/skbuff.c                                  | 169 +++++
 net/openvswitch/actions.c                          |  81 +-
 net/sched/Kconfig                                  |  11 +
 net/sched/Makefile                                 |   1 +
 net/sched/act_mpls.c                               | 406 +++++++++++
 tools/testing/selftests/tc-testing/config          |   1 +
 .../tc-testing/tc-tests/actions/mpls.json          | 812 +++++++++++++++++++++
 11 files changed, 1478 insertions(+), 73 deletions(-)
 create mode 100644 include/net/tc_act/tc_mpls.h
 create mode 100644 include/uapi/linux/tc_act/tc_mpls.h
 create mode 100644 net/sched/act_mpls.c
 create mode 100644 tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json

-- 
2.7.4