summaryrefslogtreecommitdiff
path: root/Documentation/networking/dsa/dsa.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/networking/dsa/dsa.rst')
-rw-r--r--Documentation/networking/dsa/dsa.rst6
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,