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[84.238.136.197]) by smtp.gmail.com with ESMTPSA id j6sm5686924wmb.3.2020.06.23.13.47.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jun 2020 13:47:36 -0700 (PDT) From: Nikolay Aleksandrov To: netdev@vger.kernel.org Cc: roopa@cumulusnetworks.com, anuradhak@cumulusnetworks.com, davem@davemloft.net, bridge@lists.linux-foundation.org, Nikolay Aleksandrov Subject: [PATCH net-next 0/4] net: bridge: fdb activity tracking Date: Tue, 23 Jun 2020 23:47:14 +0300 Message-Id: <20200623204718.1057508-1-nikolay@cumulusnetworks.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, This set adds extensions needed for EVPN multi-homing proper and efficient mac sync. User-space (e.g. FRR) needs to be able to track non-dynamic entry activity on per-fdb basis depending if a tracked fdb is currently peer active or locally active and needs to be able to add new peer active fdb (static + track + inactive) without refreshing it to get real activity tracking. Patch 02 adds a new NDA attribute - NDA_FDB_EXT_ATTRS to avoid future pollution of NDA attributes by bridge or vxlan. New bridge/vxlan specific fdb attributes are embedded in NDA_FDB_EXT_ATTRS, which is used in patch 03 to pass the new NFEA_ACTIVITY_NOTIFY attribute which controls if an fdb should be tracked and also reflects its current state when dumping. It is treated as a bitfield, current valid bits are: 1 - mark an entry for activity tracking 2 - mark an entry as inactive to avoid multiple notifications and reflect state properly Patch 04 adds the ability to avoid refreshing an entry when changing it via the NFEA_DONT_REFRESH flag. That allows user-space to mark a static entry for tracking and keep its real activity unchanged. The set has been extensively tested with FRR and those changes will be upstreamed if/after it gets accepted. Thanks, Nik Nikolay Aleksandrov (4): net: bridge: fdb_add_entry takes ndm as argument net: neighbor: add fdb extended attribute net: bridge: add option to allow activity notifications for any fdb entries net: bridge: add a flag to avoid refreshing fdb when changing/adding include/uapi/linux/neighbour.h | 24 +++++++ net/bridge/br_fdb.c | 127 ++++++++++++++++++++++++++++----- net/bridge/br_private.h | 4 ++ net/core/neighbour.c | 1 + 4 files changed, 139 insertions(+), 17 deletions(-)