devlink: Move devlink port function hw_addr attr documentation

devlink port function hw_addr attr documentation is in mlx5 specific
file while there is nothing mlx5 specific about it.
Move it to devlink-port.rst.
Signed-off-by: NShay Drory <shayd@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst

@@ -351,42 +351,8 @@ driver.
 
 MAC address setup
 -----------------
-mlx5 driver provides mechanism to setup the MAC address of the PCI VF/SF.
-
-The configured MAC address of the PCI VF/SF will be used by netdevice and rdma
-device created for the PCI VF/SF.
-
-- Get the MAC address of the VF identified by its unique devlink port index::
-
-    $ devlink port show pci/0000:06:00.0/2
-    pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
-      function:
-        hw_addr 00:00:00:00:00:00
-
-- Set the MAC address of the VF identified by its unique devlink port index::
-
-    $ devlink port function set pci/0000:06:00.0/2 hw_addr 00:11:22:33:44:55
-
-    $ devlink port show pci/0000:06:00.0/2
-    pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
-      function:
-        hw_addr 00:11:22:33:44:55
-
-- Get the MAC address of the SF identified by its unique devlink port index::
-
-    $ devlink port show pci/0000:06:00.0/32768
-    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
-      function:
-        hw_addr 00:00:00:00:00:00
-
-- Set the MAC address of the SF identified by its unique devlink port index::
-
-    $ devlink port function set pci/0000:06:00.0/32768 hw_addr 00:00:00:00:88:88
-
-    $ devlink port show pci/0000:06:00.0/32768
-    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
-      function:
-        hw_addr 00:00:00:00:88:88
+mlx5 driver support devlink port function attr mechanism to setup MAC
+address. (refer to Documentation/networking/devlink/devlink-port.rst)
 
 SF state setup
 --------------

Documentation/networking/devlink/devlink-port.rst

@@ -119,9 +119,49 @@ function device to the driver. For subfunctions, this means user should
 configure port function attribute before activating the port function.
 
 A user may set the hardware address of the function using
-'devlink port function set hw_addr' command. For Ethernet port function
+`devlink port function set hw_addr` command. For Ethernet port function
 this means a MAC address.
 
+Function attributes
+===================
+
+MAC address setup
+-----------------
+The configured MAC address of the PCI VF/SF will be used by netdevice and rdma
+device created for the PCI VF/SF.
+
+- Get the MAC address of the VF identified by its unique devlink port index::
+
+    $ devlink port show pci/0000:06:00.0/2
+    pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
+      function:
+        hw_addr 00:00:00:00:00:00
+
+- Set the MAC address of the VF identified by its unique devlink port index::
+
+    $ devlink port function set pci/0000:06:00.0/2 hw_addr 00:11:22:33:44:55
+
+    $ devlink port show pci/0000:06:00.0/2
+    pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
+      function:
+        hw_addr 00:11:22:33:44:55
+
+- Get the MAC address of the SF identified by its unique devlink port index::
+
+    $ devlink port show pci/0000:06:00.0/32768
+    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
+      function:
+        hw_addr 00:00:00:00:00:00
+
+- Set the MAC address of the SF identified by its unique devlink port index::
+
+    $ devlink port function set pci/0000:06:00.0/32768 hw_addr 00:00:00:00:88:88
+
+    $ devlink port show pci/0000:06:00.0/32768
+    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
+      function:
+        hw_addr 00:00:00:00:88:88
+
 Subfunction
 ============