[PATCH net-next 0/3] bridge: neigh msg proxy and flood suppression support

[Roopa Prabhu <roopa@cumulusnetworks.com>]

From: Roopa Prabhu <roopa@cumulusnetworks.com>

This series implements arp and nd suppression in the bridge
driver for ethernet vpns. It implements rfc7432, section 10
https://tools.ietf.org/html/rfc7432#section-10
for ethernet VPN deployments. It is similar to the existing
BR_ARP_PROXY flag but has a few semantic differences to conform
to EVPN standard. In case of EVPN, it is mainly used to avoid flooding to
tunnel ports like vxlan/mpls. Unlike the existing flags it suppresses flood
of all neigh discovery packets (arp, nd) to tunnel ports.

Roopa Prabhu (3):
  bridge: add new BR_NEIGH_SUPPRESS port flag to suppress arp and nd
    flood
  neigh arp suppress first
  bridge: suppress nd messages from going to BR_NEIGH_SUPPRESS ports

 include/linux/if_bridge.h    |   1 +
 include/uapi/linux/if_link.h |   1 +
 net/bridge/Makefile          |   2 +-
 net/bridge/br_arp_nd_proxy.c | 492 +++++++++++++++++++++++++++++++++++++++++++
 net/bridge/br_device.c       |  18 ++
 net/bridge/br_forward.c      |   3 +-
 net/bridge/br_if.c           |   5 +
 net/bridge/br_input.c        |  73 ++-----
 net/bridge/br_netlink.c      |  16 +-
 net/bridge/br_private.h      |   9 +
 net/bridge/br_sysfs_if.c     |   2 +
 11 files changed, 561 insertions(+), 61 deletions(-)
 create mode 100644 net/bridge/br_arp_nd_proxy.c

-- 
2.1.4