docs: networkng: convert sja1105's devlink info to RTS

A new file snuck into the tree after all existing documentation
was converted to RST. Convert sja1105's devlink info and move
it where the rest of the drivers are documented.
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Acked-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Documentation/networking/devlink-params-sja1105.txt

-best_effort_vlan_filtering
-			[DEVICE, DRIVER-SPECIFIC]
-			Allow plain ETH_P_8021Q headers to be used as DSA tags.
-			Benefits:
-			- Can terminate untagged traffic over switch net
-			  devices even when enslaved to a bridge with
-			  vlan_filtering=1.
-			- Can terminate VLAN-tagged traffic over switch net
-			  devices even when enslaved to a bridge with
-			  vlan_filtering=1, with some constraints (no more than
-			  7 non-pvid VLANs per user port).
-			- Can do QoS based on VLAN PCP and VLAN membership
-			  admission control for autonomously forwarded frames
-			  (regardless of whether they can be terminated on the
-			  CPU or not).
-			Drawbacks:
-			- User cannot use VLANs in range 1024-3071. If the
-			  switch receives frames with such VIDs, it will
-			  misinterpret them as DSA tags.
-			- Switch uses Shared VLAN Learning (FDB lookup uses
-			  only DMAC as key).
-			- When VLANs span cross-chip topologies, the total
-			  number of permitted VLANs may be less than 7 per
-			  port, due to a maximum number of 32 VLAN retagging
-			  rules per switch.
-			Configuration mode: runtime
-			Type: bool.

Documentation/networking/devlink/index.rst

@@ -40,5 +40,6 @@ parameters, info versions, and other features it supports.
    mv88e6xxx
    netdevsim
    nfp
+   sja1105
    qed
    ti-cpsw-switch

Documentation/networking/devlink/sja1105.rst

+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+sja1105 devlink support
+=======================
+
+This document describes the devlink features implemented
+by the ``sja1105`` device driver.
+
+Parameters
+==========
+
+.. list-table:: Driver-specific parameters implemented
+  :widths: 5 5 5 85
+
+  * - Name
+    - Type
+    - Mode
+    - Description
+  * - ``best_effort_vlan_filtering``
+    - Boolean
+    - runtime
+    - Allow plain ETH_P_8021Q headers to be used as DSA tags.
+
+      Benefits:
+
+      - Can terminate untagged traffic over switch net
+        devices even when enslaved to a bridge with
+        vlan_filtering=1.
+      - Can terminate VLAN-tagged traffic over switch net
+        devices even when enslaved to a bridge with
+        vlan_filtering=1, with some constraints (no more than
+        7 non-pvid VLANs per user port).
+      - Can do QoS based on VLAN PCP and VLAN membership
+        admission control for autonomously forwarded frames
+        (regardless of whether they can be terminated on the
+        CPU or not).
+
+      Drawbacks:
+
+      - User cannot use VLANs in range 1024-3071. If the
+	switch receives frames with such VIDs, it will
+	misinterpret them as DSA tags.
+      - Switch uses Shared VLAN Learning (FDB lookup uses
+	only DMAC as key).
+      - When VLANs span cross-chip topologies, the total
+	number of permitted VLANs may be less than 7 per
+	port, due to a maximum number of 32 VLAN retagging
+	rules per switch.