net/hns3: fix link status when port is stopped

[ upstream commit 6430855 ]

When port is stopped, link down should be reported to user. For HNS3
PF driver, link status comes from link status of hardware. If the port
supports NCSI feature, hardware MAC will not be disabled. At this case,
even if the port is stopped, the link status is still Up. So driver
should set link down when the port is stopped.

Fixes: 59fad0f ("net/hns3: support link update operation")

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>

drivers/net/hns3/hns3_ethdev.c

@@ -2709,6 +2709,15 @@ hns3_dev_link_update(struct rte_eth_dev *eth_dev,
 	struct rte_eth_link new_link;
 	int ret;
 
+	/* When port is stopped, report link down. */
+	if (eth_dev->data->dev_started == 0) {
+		new_link.link_autoneg = mac->link_autoneg;
+		new_link.link_duplex = mac->link_duplex;
+		new_link.link_speed = ETH_SPEED_NUM_NONE;
+		new_link.link_status = ETH_LINK_DOWN;
+		goto out;
+	}
+
 	ret = hns3_update_port_link_info(eth_dev);
 	if (ret) {
 		mac->link_status = ETH_LINK_DOWN;
@@ -2718,6 +2727,7 @@ hns3_dev_link_update(struct rte_eth_dev *eth_dev,
 	memset(&new_link, 0, sizeof(new_link));
 	hns3_setup_linkstatus(eth_dev, &new_link);
 
+out:
 	return rte_eth_linkstatus_set(eth_dev, &new_link);
 }