linux-loongson/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.h
Jijie Shao e0306637e8 net: hibmcge: Add support for mac link exception handling feature
If the rate changed frequently, the PHY link ok,
but the MAC link maybe fails.
As a result, the network port is unavailable.

According to the documents of the chip,
core_reset needs to do to fix the fault.

In hw_adjus_link(), the core_reset is added to try to
ensure that MAC link status is normal.
In addition, MAC link failure detection is added.
If the MAC link fails after core_reset, driver invokes
the phy_stop() and phy_start() to re-link.

Due to phydev->lock, re-link cannot be triggered
in adjust_link(). Therefore, this operation
is invoked in a scheduled task.

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-04 13:45:33 +01:00

15 lines
338 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (c) 2024 Hisilicon Limited. */
#ifndef __HBG_MDIO_H
#define __HBG_MDIO_H
#include "hbg_common.h"
int hbg_mdio_init(struct hbg_priv *priv);
void hbg_phy_start(struct hbg_priv *priv);
void hbg_phy_stop(struct hbg_priv *priv);
void hbg_fix_np_link_fail(struct hbg_priv *priv);
#endif