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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-07-16 21:53:33 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-18 12:44:37 +0100 |
| commit | c56313a42aaa0c353af6425aed63719823ccfc32 (patch) | |
| tree | 52ee436a02a27695e1354a644e330248f9c68880 /Documentation/networking | |
| parent | c3f0e84d10862b2b2ed927561f12fe0bf8033590 (diff) | |
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 <vladimir.oltean@nxp.com>
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 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst index f49996e97363..76b0bc1abbae 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, |