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| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-07-16 21:53:44 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-07-18 12:44:37 +0100 |
| commit | 7b02f40350f1b8011f724a052dcb0849cffa6c38 (patch) | |
| tree | 4d1fc093df31ea4867ec1d99a5ef5f941f2c7be4 /Documentation/networking | |
| parent | docs: net: dsa: delete misinformation about -EOPNOTSUPP for FDB/MDB/VLAN (diff) | |
| download | linux-dev-7b02f40350f1b8011f724a052dcb0849cffa6c38.tar.xz linux-dev-7b02f40350f1b8011f724a052dcb0849cffa6c38.zip | |
docs: net: dsa: mention that VLANs are now refcounted on shared ports
The blamed commit updated the way in which VLANs are handled at the
cross-chip notifier layer and didn't update the documentation to say
that. Fix it.
Fixes: 134ef2388e7f ("net: dsa: add explicit support for host bridge VLANs")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/dsa/dsa.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst index 69ea35e19755..d742ba6bd211 100644 --- a/Documentation/networking/dsa/dsa.rst +++ b/Documentation/networking/dsa/dsa.rst @@ -951,7 +951,13 @@ Bridge VLAN filtering allowed. - ``port_vlan_add``: bridge layer function invoked when a VLAN is configured - (tagged or untagged) for the given switch port.. + (tagged or untagged) for the given switch port. The CPU port becomes a member + of a VLAN only if a foreign bridge port is also a member of it (and + forwarding needs to take place in software), or the VLAN is installed to the + VLAN group of the bridge device itself, for termination purposes + (``bridge vlan add dev br0 vid 100 self``). VLANs on shared ports are + reference counted and removed when there is no user left. Drivers do not need + to manually install a VLAN on the CPU port. - ``port_vlan_del``: bridge layer function invoked when a VLAN is removed from the given switch port |