From: Or Har-Toov <ohartoov@nvidia.com>

Document the port-level resource support and the option to dump all
resources, including both device-level and port-level entries.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Shay Drori <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 .../networking/devlink/devlink-resource.rst   | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/Documentation/networking/devlink/devlink-resource.rst b/Documentation/networking/devlink/devlink-resource.rst
index 3d5ae51e65a2..9839c1661315 100644
--- a/Documentation/networking/devlink/devlink-resource.rst
+++ b/Documentation/networking/devlink/devlink-resource.rst
@@ -74,3 +74,38 @@ attribute, which represents the pending change in size. For example:
 
 Note that changes in resource size may require a device reload to properly
 take effect.
+
+Port-level Resources and Full Dump
+==================================
+
+In addition to device-level resources, ``devlink`` also supports port-level
+resources. These resources are associated with a specific devlink port rather
+than the device as a whole.
+
+To list resources for all devlink devices and ports:
+
+.. code:: shell
+
+    $ devlink resource show
+    pci/0000:03:00.0:
+      name max_local_SFs size 128 unit entry dpipe_tables none
+      name max_external_SFs size 128 unit entry dpipe_tables none
+    pci/0000:03:00.0/196608:
+      name max_SFs size 128 unit entry dpipe_tables none
+    pci/0000:03:00.0/196609:
+      name max_SFs size 128 unit entry dpipe_tables none
+    pci/0000:03:00.1:
+      name max_local_SFs size 128 unit entry dpipe_tables none
+      name max_external_SFs size 128 unit entry dpipe_tables none
+    pci/0000:03:00.1/196708:
+      name max_SFs size 128 unit entry dpipe_tables none
+    pci/0000:03:00.1/196709:
+      name max_SFs size 128 unit entry dpipe_tables none
+
+To show resources for a specific port:
+
+.. code:: shell
+
+    $ devlink resource show pci/0000:03:00.0/196608
+    pci/0000:03:00.0/196608:
+      name max_SFs size 128 unit entry dpipe_tables none
-- 
2.44.0