net: dsa: Add devlink regions support to DSA

Allow DSA drivers to make use of devlink regions, via simple wrappers.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/dsa.h

@@ -658,6 +658,12 @@ void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds,
 					   void *occ_get_priv);
 void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,
 					     u64 resource_id);
+struct devlink_region *
+dsa_devlink_region_create(struct dsa_switch *ds,
+			  const struct devlink_region_ops *ops,
+			  u32 region_max_snapshots, u64 region_size);
+void dsa_devlink_region_destroy(struct devlink_region *region);
+
 struct dsa_port *dsa_port_from_netdev(struct net_device *netdev);
 
 struct dsa_devlink_priv {

net/dsa/dsa.c

@@ -404,6 +404,22 @@ void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,
 }
 EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_unregister);
 
+struct devlink_region *
+dsa_devlink_region_create(struct dsa_switch *ds,
+			  const struct devlink_region_ops *ops,
+			  u32 region_max_snapshots, u64 region_size)
+{
+	return devlink_region_create(ds->devlink, ops, region_max_snapshots,
+				     region_size);
+}
+EXPORT_SYMBOL_GPL(dsa_devlink_region_create);
+
+void dsa_devlink_region_destroy(struct devlink_region *region)
+{
+	devlink_region_destroy(region);
+}
+EXPORT_SYMBOL_GPL(dsa_devlink_region_destroy);
+
 struct dsa_port *dsa_port_from_netdev(struct net_device *netdev)
 {
 	if (!netdev || !dsa_slave_dev_check(netdev))