Re: [PATCH v4 net-next 11/15] net: bridge: switchdev: allow the TX data plane forwarding to be offloaded

 static int nbp_switchdev_add(struct net_bridge_port *p,
 			     struct netdev_phys_item_id ppid,
+			     bool tx_fwd_offload,
 			     struct netlink_ext_ack *extack)
 {
+	int err;
+
 	if (p->offload_count) {
 		/* Prevent unsupported configurations such as a bridge port
 		 * which is a bonding interface, and the member ports are from

@@ -189,7 +228,16 @@ static int nbp_switchdev_add(struct net_bridge_port *p,
 	p->ppid = ppid;
 	p->offload_count = 1;
 
-	return nbp_switchdev_hwdom_set(p);
+	err = nbp_switchdev_hwdom_set(p);
+	if (err)
+		return err;
+
+	if (tx_fwd_offload) {
+		p->flags |= BR_TX_FWD_OFFLOAD;
+		static_branch_inc(&br_switchdev_fwd_offload_used);
+	}
+
+	return 0;
 }
 
 static void nbp_switchdev_del(struct net_bridge_port *p,

@@ -210,6 +258,8 @@ static void nbp_switchdev_del(struct net_bridge_port *p,
 
 	if (p->hwdom)
 		nbp_switchdev_hwdom_put(p);
+
+	p->flags &= ~BR_TX_FWD_OFFLOAD;
 }