From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roopa Prabhu Subject: [PATCH net-next 0/3] bridge: neigh msg proxy and flood suppression support Date: Sun, 1 Oct 2017 21:36:55 -0700 Message-ID: <1506919018-27875-1-git-send-email-roopa@cumulusnetworks.com> Cc: netdev@vger.kernel.org, nikolay@cumulusnetworks.com, stephen@networkplumber.org, bridge@lists.linux-foundation.org To: davem@davemloft.net Return-path: Received: from mail-pf0-f179.google.com ([209.85.192.179]:53857 "EHLO mail-pf0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751075AbdJBEhD (ORCPT ); Mon, 2 Oct 2017 00:37:03 -0400 Received: by mail-pf0-f179.google.com with SMTP id x78so2347399pff.10 for ; Sun, 01 Oct 2017 21:37:03 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: From: Roopa Prabhu 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