net: hns3: clear VF down state bit before request link status
authorGuangbin Huang <huangguangbin2@huawei.com>
Tue, 6 Apr 2021 13:10:43 +0000 (21:10 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 14 Apr 2021 06:42:11 +0000 (08:42 +0200)
commitf780a08088274280d10b356b68297d32dbe33dc8
tree358bc94ea36631a654203547d64111801b0ba072
parentf473789db5369f1cc33b6490276029ab58716c34
net: hns3: clear VF down state bit before request link status

[ Upstream commit ed7bedd2c3ca040f1e8ea02c6590a93116b1ec78 ]

Currently, the VF down state bit is cleared after VF sending
link status request command. There is problem that when VF gets
link status replied from PF, the down state bit may still set
as 1. In this case, the link status replied from PF will be
ignored and always set VF link status to down.

To fix this problem, clear VF down state bit before VF requests
link status.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c