From 4f5590f8cd736768170818d1b7ea0075972e2701 Mon Sep 17 00:00:00 2001 From: Elad Raz Date: Sun, 10 Jan 2016 21:06:29 +0100 Subject: [PATCH] switchdev: Adding IGMP snooping documentation Signed-off-by: Elad Raz Signed-off-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- Documentation/networking/switchdev.txt | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt index 91994134efca..fad63136ee3e 100644 --- a/Documentation/networking/switchdev.txt +++ b/Documentation/networking/switchdev.txt @@ -304,8 +304,12 @@ certain netdevs from flooding unicast traffic for which there is no FDB entry. IGMP Snooping ^^^^^^^^^^^^^ -XXX: complete this section - +In order to support IGMP snooping, the port netdevs should trap to the bridge +driver all IGMP join and leave messages. +The bridge multicast module will notify port netdevs on every multicast group +changed whether it is static configured or dynamically joined/leave. +The hardware implementation should be forwarding all registered multicast +traffic groups only to the configured ports. L3 Routing Offload ------------------ -- 2.20.1