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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-03-16 13:24:13 +0200
committerDavid S. Miller <davem@davemloft.net>2021-03-16 15:13:44 -0700
commit5a275f4c2989f6f1fab626c61d34001f28381a18 (patch)
tree39b3c07ae43cdf90d0c9a96359b39c54dd240319 /Documentation/networking/dsa
parentf4b5c53a03ea76b2abfd71b45aa7363fd2ad0cc1 (diff)
Documentation: networking: dsa: document the port_bridge_flags method
The documentation was already lagging behind by not mentioning the old version of port_bridge_flags (port_set_egress_floods). So now we are skipping one step and just explaining how a DSA driver should configure address learning and flooding settings. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/dsa')
-rw-r--r--Documentation/networking/dsa/dsa.rst11
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst
index b90a852e5329..9c287dfd3c45 100644
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -619,6 +619,17 @@ Bridge layer
computing a STP state change based on current and asked parameters and perform
the relevant ageing based on the intersection results
+- ``port_bridge_flags``: bridge layer function invoked when a port must
+ configure its settings for e.g. flooding of unknown traffic or source address
+ learning. The switch driver is responsible for initial setup of the
+ standalone ports with address learning disabled and egress flooding of all
+ types of traffic, then the DSA core notifies of any change to the bridge port
+ flags when the port joins and leaves a bridge. DSA does not currently manage
+ the bridge port flags for the CPU port. The assumption is that address
+ learning should be statically enabled (if supported by the hardware) on the
+ CPU port, and flooding towards the CPU port should also be enabled, due to a
+ lack of an explicit address filtering mechanism in the DSA core.
+
Bridge VLAN filtering
---------------------