Implement the .get_drvinfo .get_link .get_link_ksettings to get
the basic information and working status of the driver.
Implement the .set_link_ksettings to modify the rate, duplex,
and auto-negotiation status.

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
ChangeLog:
RFC v1 -> RFC v2:
  - Use ethtool_op_get_link(), phy_ethtool_get_link_ksettings(),
    and phy_ethtool_set_link_ksettings() to simplify the code, suggested by Andrew.
  - Delete workqueue for this patch set, suggested by Jonathan.
  RFC v1: https://lore.kernel.org/all/20240731094245.1967834-1-shaojijie@huawei.com/
---
 .../ethernet/hisilicon/hibmcge/hbg_ethtool.c    | 17 +++++++++++++++++
 .../ethernet/hisilicon/hibmcge/hbg_ethtool.h    | 11 +++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_main.c   |  2 ++
 3 files changed, 30 insertions(+)
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
 create mode 100644 drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.h

diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
new file mode 100644
index 000000000000..c3370114aef3
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include "hbg_ethtool.h"
+
+static const struct ethtool_ops hbg_ethtool_ops = {
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+};
+
+void hbg_ethtool_set_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &hbg_ethtool_ops;
+}
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.h
new file mode 100644
index 000000000000..628707ec2686
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_ETHTOOL_H
+#define __HBG_ETHTOOL_H
+
+#include <linux/netdevice.h>
+
+void hbg_ethtool_set_ops(struct net_device *netdev);
+
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
index 4fc8b649f034..2865866669be 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
@@ -6,6 +6,7 @@
 #include <linux/netdevice.h>
 #include <linux/pci.h>
 #include "hbg_common.h"
+#include "hbg_ethtool.h"
 #include "hbg_hw.h"
 #include "hbg_irq.h"
 #include "hbg_mdio.h"
@@ -242,6 +243,7 @@ static int hbg_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	netdev->min_mtu = priv->dev_specs.min_mtu;
 	hbg_change_mtu(priv, HBG_DEFAULT_MTU_SIZE);
 	hbg_net_set_mac_address(priv->netdev, &priv->dev_specs.mac_addr);
+	hbg_ethtool_set_ops(netdev);
 	ret = devm_register_netdev(dev, netdev);
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to register netdev\n");
-- 
2.33.0