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-rw-r--r--Documentation/networking/dsa/dsa.rst9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst
index e16eb2e5e787..eade80ed226b 100644
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -620,6 +620,15 @@ Switch configuration
may have previously configured. The method responsible for undoing any
applicable allocations or operations done here is ``teardown``.
+- ``port_setup`` and ``port_teardown``: methods for initialization and
+ destruction of per-port data structures. It is mandatory for some operations
+ such as registering and unregistering devlink port regions to be done from
+ these methods, otherwise they are optional. A port will be torn down only if
+ it has been previously set up. It is possible for a port to be set up during
+ probing only to be torn down immediately afterwards, for example in case its
+ PHY cannot be found. In this case, probing of the DSA switch continues
+ without that particular port.
+
PHY devices and link management
-------------------------------