[PATCHv3 net-next 0/2] net: erspan: add support for openvswitch

[William Tu <u9012063@gmail.com>]

The first patch refactors the erspan header definitions. 
Originally, the erspan fields are defined as a group into a __be16 field,
and use mask and offset to access each field.  This is more costly due to
calling ntohs/htons and error-prone.  The first patch changes it to use
bitfields.  The second patch introduces the new OVS tunnel key attribute
to program both v1 and v2 erspan tunnel for openvswitch.

William Tu (2):
  net: erspan: use bitfield instead of mask and offset
  openvswitch: add erspan version I and II support

 include/net/erspan.h             | 127 +++++++++++++++++++++++---------
 include/uapi/linux/openvswitch.h |  11 +++
 net/ipv4/ip_gre.c                |  38 ++++------
 net/ipv6/ip6_gre.c               |  36 ++++-----
 net/openvswitch/flow_netlink.c   | 154 ++++++++++++++++++++++++++++++++++++++-
 5 files changed, 285 insertions(+), 81 deletions(-)

---
v2->v3
  revert the "openvswitch: Add erspan tunnel support." commit ceaa001a170e.
  redesign the OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS as nested attribute

v1->v2
  Fix compatibility issue suggested by Pravin.
- 
2.7.4