static int handle_en_event(struct hns_roce_dev *hr_dev, u8 port,
			   unsigned long event)
{
	struct device *dev = hr_dev->dev;
	struct net_device *netdev;
	int ret = 0;

	netdev = hr_dev->iboe.netdevs[port];
	if (!netdev) {
		dev_err(dev, "port(%d) can't find netdev\n", port);
		return -ENODEV;
	}

	switch (event) {
	case NETDEV_UP:
	case NETDEV_CHANGE:
	case NETDEV_REGISTER:
	case NETDEV_CHANGEADDR:
		ret = hns_roce_set_mac(hr_dev, port, netdev->dev_addr);
		break;
	case NETDEV_DOWN:
		/*
		 * In v1 engine, only support all ports closed together.
		 */
		break;
	default:
		dev_dbg(dev, "NETDEV event = 0x%x!\n", (u32)(event));
		break;
	}

	return ret;
}
Unknown