From: Vladimir Oltean Date: Sat, 16 Jul 2022 18:53:34 +0000 (+0300) Subject: docs: net: dsa: document change_tag_protocol X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d6a0336addd47af8869953a480e44a63726fad8f;p=linux.git docs: net: dsa: document change_tag_protocol Support for changing the tagging protocol was added without this operation being documented; do so now. Fixes: 53da0ebaad10 ("net: dsa: allow changing the tag protocol via the "tagging" device attribute") Signed-off-by: Vladimir Oltean Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst index 76b0bc1abbaee..83c1a02376c8a 100644 --- a/Documentation/networking/dsa/dsa.rst +++ b/Documentation/networking/dsa/dsa.rst @@ -600,6 +600,12 @@ Switch configuration upstream switch, in case there are hardware limitations in terms of supported tag formats. +- ``change_tag_protocol``: when the default tagging protocol has compatibility + problems with the master or other issues, the driver may support changing it + at runtime, either through a device tree property or through sysfs. In that + case, further calls to ``get_tag_protocol`` should report the protocol in + current use. + - ``setup``: setup function for the switch, this function is responsible for setting up the ``dsa_switch_ops`` private structure with all it needs: register maps, interrupts, mutexes, locks, etc. This function is also expected to properly