From 609e22727df12d8ff8764c1515ec5a5ecfa22a5a Mon Sep 17 00:00:00 2001 From: Yufeng Mo Date: Tue, 25 May 2021 15:30:05 +0000 Subject: [PATCH] net: hns3: disable phy loopback setting in hclge_mac_start_phy stable inclusion from stable-5.10.38 commit 65084886c6ee5f7f4e9cbe7afc79fb0243ab4099 bugzilla: 51875 CVE: NA -------------------------------- [ Upstream commit 472497d0bdae890a896013332a0b673f9acdf2bf ] If selftest and reset are performed at the same time, the phy loopback setting may be still in enable state after the reset, and device cannot link up. So fix this issue by disabling phy loopback before phy_start(). Fixes: 256727da7395 ("net: hns3: Add MDIO support to HNS3 Ethernet driver for hip08 SoC") Signed-off-by: Yufeng Mo Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Chen Jun Acked-by: Weilong Chen Signed-off-by: Zheng Zengkai --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c index e89820702540..c194bba187d6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c @@ -255,6 +255,8 @@ void hclge_mac_start_phy(struct hclge_dev *hdev) if (!phydev) return; + phy_loopback(phydev, false); + phy_start(phydev); } -- GitLab