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net: hns3: differentiate autoneg default values between copper and fiber

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Fix a link loss issue during driver initialization on optical ports
connected to forced-mode (non-autoneg) remote switches.

Previously, during driver probe or initialization, hclge_configure()
blindly hardcoded hdev->hw.mac.req_autoneg to AUTONEG_ENABLE for all
media types. While this is necessary for copper (BASE-T) ports to
establish a link, many high-speed optical (fiber) ports in data
centers are connected to switches running in forced mode (fixed speed,
autoneg disabled). Forcing autoneg on these optical ports during
initialization causes a permanent link failure since the remote end
refuses to respond to autoneg pulses.

Fix this by implementing media-type differentiated initialization in
hclge_init_ae_dev(). Copper ports continue to default to
AUTONEG_ENABLE, while optical ports strictly inherit the preset
autoneg status pre-configured by the firmware (hdev->hw.mac.autoneg),
preserving native compatibility with forced-mode network environments.

Fixes: 05eb60e964 ("net: hns3: using user configure after hardware reset")
Signed-off-by: Shuaisong Yang <yangshuaisong@h-partners.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20260624141319.271439-5-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Shuaisong Yang 2026-06-24 22:13:19 +08:00 committed by Jakub Kicinski
parent c711f6d1ce
commit d9d349c4e8
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -9498,6 +9498,13 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
if (ret)
goto err_ptp_uninit;
if (hdev->hw.mac.media_type != HNAE3_MEDIA_TYPE_COPPER) {
hdev->hw.mac.req_autoneg = hdev->hw.mac.autoneg;
if (hdev->hw.mac.autoneg == AUTONEG_DISABLE &&
hdev->hw.mac.speed != SPEED_UNKNOWN)
hdev->hw.mac.req_speed = hdev->hw.mac.speed;
}
ret = hclge_set_autoneg_speed_dup(hdev);
if (ret) {
dev_err(&pdev->dev,