switchdev: add bridge port flags attr

rocker: use switchdev get/set attr for bridge port flags
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/rocker/rocker.c

@@ -4394,6 +4394,9 @@ static int rocker_port_attr_get(struct net_device *dev,
 		attr->ppid.id_len = sizeof(rocker->hw.id);
 		memcpy(&attr->ppid.id, &rocker->hw.id, attr->ppid.id_len);
 		break;
+	case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
+		attr->brport_flags = rocker_port->brport_flags;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -4411,6 +4414,24 @@ static void rocker_port_trans_abort(struct rocker_port *rocker_port)
 	}
 }
 
+static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
+					enum switchdev_trans trans,
+					unsigned long brport_flags)
+{
+	unsigned long orig_flags;
+	int err = 0;
+
+	orig_flags = rocker_port->brport_flags;
+	rocker_port->brport_flags = brport_flags;
+	if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
+		err = rocker_port_set_learning(rocker_port, trans);
+
+	if (trans == SWITCHDEV_TRANS_PREPARE)
+		rocker_port->brport_flags = orig_flags;
+
+	return err;
+}
+
 static int rocker_port_attr_set(struct net_device *dev,
 				struct switchdev_attr *attr)
 {
@@ -4433,6 +4454,10 @@ static int rocker_port_attr_set(struct net_device *dev,
 		err = rocker_port_stp_update(rocker_port, attr->trans,
 					     attr->stp_state);
 		break;
+	case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
+		err = rocker_port_brport_flags_set(rocker_port, attr->trans,
+						   attr->brport_flags);
+		break;
 	default:
 		err = -EOPNOTSUPP;
 		break;

include/net/switchdev.h

@@ -27,6 +27,7 @@ enum switchdev_attr_id {
 	SWITCHDEV_ATTR_UNDEFINED,
 	SWITCHDEV_ATTR_PORT_PARENT_ID,
 	SWITCHDEV_ATTR_PORT_STP_STATE,
+	SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS,
 };
 
 struct switchdev_attr {
@@ -36,6 +37,7 @@ struct switchdev_attr {
 	union {
 		struct netdev_phys_item_id ppid;	/* PORT_PARENT_ID */
 		u8 stp_state;				/* PORT_STP_STATE */
+		unsigned long brport_flags;		/* PORT_BRIDGE_FLAGS */
 	};
 };