From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roopa Prabhu Subject: [PATCH net-next v5 0/3] bridge: neigh msg proxy and flood suppression support Date: Fri, 6 Oct 2017 11:34:37 -0700 Message-ID: <1507314880-16310-1-git-send-email-roopa@cumulusnetworks.com> Cc: netdev@vger.kernel.org, nikolay@cumulusnetworks.com, stephen@networkplumber.org, makita.toshiaki@lab.ntt.co.jp, bridge@lists.linux-foundation.org To: davem@davemloft.net Return-path: Received: from mail-pf0-f182.google.com ([209.85.192.182]:50545 "EHLO mail-pf0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751862AbdJFSeq (ORCPT ); Fri, 6 Oct 2017 14:34:46 -0400 Received: by mail-pf0-f182.google.com with SMTP id m63so9943129pfk.7 for ; Fri, 06 Oct 2017 11:34:46 -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_PROXYARP* flags but has a few semantic differences to conform to EVPN standard. Unlike the existing flags, this new flag suppresses flood of all neigh discovery packets (arp and nd) to tunnel ports. Supports both vlan filtering and non-vlan filtering bridges. In case of EVPN, it is mainly used to avoid flooding of arp and nd packets to tunnel ports like vxlan. v2 : rebase to latest + address some optimization feedback from Nikolay. v3 : fix kbuild reported build errors with CONFIG_INET off v4 : simplify port flag mask as suggested by stephen v5 : address some feedback from Toshiaki 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