From: Vladimir Oltean Date: Sat, 16 Jul 2022 18:53:33 +0000 (+0300) Subject: docs: net: dsa: add more info about the other arguments to get_tag_protocol X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c56313a42aaa0c353af6425aed63719823ccfc32;p=linux.git docs: net: dsa: add more info about the other arguments to get_tag_protocol Changes were made to the prototype of get_tag_protocol without describing at a high level what they are about. Update the documentation to explain that. Fixes: 5ed4e3eb0217 ("net: dsa: Pass a port to get_tag_protocol()") Fixes: 4d776482ecc6 ("net: dsa: Get information about stacked DSA protocol") Signed-off-by: Vladimir Oltean 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 f49996e97363f..76b0bc1abbaee 100644 --- a/Documentation/networking/dsa/dsa.rst +++ b/Documentation/networking/dsa/dsa.rst @@ -594,7 +594,11 @@ Switch configuration -------------------- - ``get_tag_protocol``: this is to indicate what kind of tagging protocol is - supported, should be a valid value from the ``dsa_tag_protocol`` enum + supported, should be a valid value from the ``dsa_tag_protocol`` enum. + The returned information does not have to be static; the driver is passed the + CPU port number, as well as the tagging protocol of a possibly stacked + upstream switch, in case there are hardware limitations in terms of supported + tag formats. - ``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,