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linux-next/net/bridge
Nikolay Aleksandrov 1080ab95e3 net: bridge: add support for IGMP/MLD stats and export them via netlink
This patch adds stats support for the currently used IGMP/MLD types by the
bridge. The stats are per-port (plus one stat per-bridge) and per-direction
(RX/TX). The stats are exported via netlink via the new linkxstats API
(RTM_GETSTATS). In order to minimize the performance impact, a new option
is used to enable/disable the stats - multicast_stats_enabled, similar to
the recent vlan stats. Also in order to avoid multiple IGMP/MLD type
lookups and checks, we make use of the current "igmp" member of the bridge
private skb->cb region to record the type on Rx (both host-generated and
external packets pass by multicast_rcv()). We can do that since the igmp
member was used as a boolean and all the valid IGMP/MLD types are positive
values. The normal bridge fast-path is not affected at all, the only
affected paths are the flooding ones and since we make use of the IGMP/MLD
type, we can quickly determine if the packet should be counted using
cache-hot data (cb's igmp member). We add counters for:
* IGMP Queries
* IGMP Leaves
* IGMP v1/v2/v3 reports

* MLD Queries
* MLD Leaves
* MLD v1/v2 reports

These are invaluable when monitoring or debugging complex multicast setups
with bridges.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 06:18:24 -04:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-04-23 18:51:33 -04:00
br_device.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_fdb.c bridge: Don't insert unnecessary local fdb entry on changing mac address 2016-06-08 00:31:38 -07:00
br_forward.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_if.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_input.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_ioctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
br_mdb.c bridge: mdb: Marking port-group as offloaded 2016-04-24 14:23:32 -04:00
br_multicast.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_netfilter_hooks.c net: rename IP_INC_STATS_BH() 2016-04-27 22:48:23 -04:00
br_netfilter_ipv6.c ipv6: rename IP6_INC_STATS_BH() 2016-04-27 22:48:24 -04:00
br_netlink.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_nf_core.c net: Remove protocol from struct dst_ops 2015-03-09 16:06:10 -04:00
br_private_stp.h net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
br_private.h net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_stp_bpdu.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
br_stp_if.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_stp_timer.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_stp.c bridge: Allow set bridge ageing time when switchdev disabled 2016-03-30 15:38:13 -04:00
br_sysfs_br.c net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
br_sysfs_if.c bridge: a netlink notification should be sent when those attributes are changed by br_sysfs_if 2016-04-13 22:42:33 -04:00
br_vlan.c bridge: netlink: export per-vlan stats 2016-05-02 22:27:06 -04:00
br.c switchdev: Require RTNL mutex to be held when sending FDB notifications 2016-01-28 16:21:31 -08:00
Kconfig bridge: Add vlan filtering infrastructure 2013-02-13 19:41:46 -05:00
Makefile netfilter: bridge: split ipv6 code into separated file 2015-06-18 21:14:21 +02:00