From: David S. Miller <davem@davemloft.net>
Date: Tue, 13 Oct 2015 11:26:44 +0000 (-0700)
Subject: Merge branch 'dsa-mv88e6xxx-fix-hardware-bridging'
X-Git-Tag: firefly_0821_release~176^2~818^2~145
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f83665d0c41f3e24602f7dd03003574f852b326f;p=firefly-linux-kernel-4.4.55.git

Merge branch 'dsa-mv88e6xxx-fix-hardware-bridging'

Vivien Didelot says:

====================
net: dsa: mv88e6xxx: fix hardware bridging

DSA and its drivers currently hook the NETDEV_CHANGEUPPER net_device event in
order to configure the VLAN map of every port.

This VLAN map is a feature of these switch chips to hardcode and restrict which
output ports a given input port can egress frames to.

A Linux bridge is a simple untagged VLAN propagated by the bridge code itself.
With a proper 802.1Q support, a driver does not need this hook anymore, and
will simply program the related VLAN object.

This patchset improves the hardware bridging code in the mv88e6xxx driver with
a strict 802.1Q mode.

Ideally, the equivalent must be done for Broadcom Starfighter 2 and Rocker,
before completely getting rid of this hook.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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f83665d0c41f3e24602f7dd03003574f852b326f