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net: hns: Fix loopback test failed at copper ports 

When doing a loopback test at copper ports, the serdes loopback
and the phy loopback will fail, because of the adjust link had
not finished, and phy not ready.

Adds sleep between adjust link and test process to fix it.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yonglong Liu 2019-05-31 16:59:50 +08:00 committed by David S. Miller
parent 62394708f3
commit 2e1f164861
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
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@ -339,6 +339,7 @@ static int __lb_setup(struct net_device *ndev,
static int __lb_up(struct net_device *ndev,
enum hnae_loop loop_mode)
{
#define NIC_LB_TEST_WAIT_PHY_LINK_TIME 300
struct hns_nic_priv *priv = netdev_priv(ndev);
struct hnae_handle *h = priv->ae_handle;
int speed, duplex;
@ -365,6 +366,9 @@ static int __lb_up(struct net_device *ndev,
h->dev->ops->adjust_link(h, speed, duplex);
/* wait adjust link done and phy ready */
msleep(NIC_LB_TEST_WAIT_PHY_LINK_TIME);
return 0;
}