From: David S. Miller Date: Thu, 30 Jun 2016 10:18:32 +0000 (-0400) Subject: Merge branch 'bridge-igmp-stats' X-Git-Tag: v4.13~2635^2~227 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=641f7e405ed208cfeb6b52145252675b51c43180;p=mirror_ubuntu-bionic-kernel.git Merge branch 'bridge-igmp-stats' Nikolay Aleksandrov says: ==================== net: bridge: add support for IGMP/MLD stats This patchset adds support for the new IFLA_STATS_LINK_XSTATS_SLAVE attribute which can be used with RTM_GETSTATS in order to export per-slave statistics. It works by passing the attribute to the linkxstats callback and if the callback user supports it - it should dump that slave's stats. This is much more scalable and permits us to request only a single port's statistics instead of dumping everything every time. The second patch adds support for per-port IGMP/MLD statistics and uses the new API to export them for the bridge and its ports. The stats are made in a very lightweight manner, the normal fast-path is not affected at all and the flood paths (br_flood/br_multicast_flood) are only affected if the packet is IGMP and the IGMP stats have been enabled using cache-hot data for the check. v2: Patch 01 is new, patch 02 has been reworked to use the new API, also in addition counters for IGMP/MLD parse errors have been added and members are added for per-port multicast traffic stats. The multicast counting has been slightly optimized (moved the br_multicast_count inside the IPv4/6 IGMP functions after the checks for IGMP traffic) to avoid one conditional that was on all of the multicast traffic path (both IGMP and other). ==================== Signed-off-by: David S. Miller --- 641f7e405ed208cfeb6b52145252675b51c43180