net: wangxun: Add the basic ethtool interfaces

Add the basic ethtool ops get_drvinfo and get_link for ngbe and txgbe.
Ngbe implements get_link_ksettings, nway_reset and set_link_ksettings
for free using phylib code.
The code related to the physical interface is not yet fully implemented
in txgbe using phylink code. So do not implement get_link_ksettings,
nway_reset and set_link_ksettings in txgbe.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230214091527.69943-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/wangxun/libwx/Makefile

@@ -4,4 +4,4 @@
 
 obj-$(CONFIG_LIBWX) += libwx.o
 
-libwx-objs := wx_hw.o wx_lib.o
+libwx-objs := wx_hw.o wx_lib.o wx_ethtool.o

drivers/net/ethernet/wangxun/libwx/wx_ethtool.c

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phy.h>
+
+#include "wx_type.h"
+#include "wx_ethtool.h"
+
+void wx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	strscpy(info->driver, wx->driver_name, sizeof(info->driver));
+	strscpy(info->fw_version, wx->eeprom_id, sizeof(info->fw_version));
+	strscpy(info->bus_info, pci_name(wx->pdev), sizeof(info->bus_info));
+}
+EXPORT_SYMBOL(wx_get_drvinfo);

drivers/net/ethernet/wangxun/libwx/wx_ethtool.h

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_ETHTOOL_H_
+#define _WX_ETHTOOL_H_
+
+void wx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info);
+#endif /* _WX_ETHTOOL_H_ */

drivers/net/ethernet/wangxun/libwx/wx_type.h

@@ -633,6 +633,7 @@ struct wx {
 	bool adapter_stopped;
 	u16 tpid[8];
 	char eeprom_id[32];
+	char *driver_name;
 	enum wx_reset_type reset_type;
 
 	/* PHY stuff */

drivers/net/ethernet/wangxun/ngbe/Makefile

@@ -6,4 +6,4 @@
 
 obj-$(CONFIG_NGBE) += ngbe.o
 
-ngbe-objs := ngbe_main.o ngbe_hw.o ngbe_mdio.o
+ngbe-objs := ngbe_main.o ngbe_hw.o ngbe_mdio.o ngbe_ethtool.o

drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+
+#include "../libwx/wx_ethtool.h"
+#include "ngbe_ethtool.h"
+
+static const struct ethtool_ops ngbe_ethtool_ops = {
+	.get_drvinfo		= wx_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.nway_reset		= phy_ethtool_nway_reset,
+};
+
+void ngbe_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &ngbe_ethtool_ops;
+}

drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBE_ETHTOOL_H_
+#define _NGBE_ETHTOOL_H_
+
+void ngbe_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* _NGBE_ETHTOOL_H_ */

drivers/net/ethernet/wangxun/ngbe/ngbe_main.c

@@ -17,6 +17,7 @@
 #include "ngbe_type.h"
 #include "ngbe_mdio.h"
 #include "ngbe_hw.h"
+#include "ngbe_ethtool.h"
 
 char ngbe_driver_name[] = "ngbe";
 
@@ -546,6 +547,8 @@ static int ngbe_probe(struct pci_dev *pdev,
 		goto err_pci_release_regions;
 	}
 
+	wx->driver_name = ngbe_driver_name;
+	ngbe_set_ethtool_ops(netdev);
 	netdev->netdev_ops = &ngbe_netdev_ops;
 
 	netdev->features |= NETIF_F_HIGHDMA;
@@ -631,6 +634,8 @@ static int ngbe_probe(struct pci_dev *pdev,
 		etrack_id |= e2rom_ver;
 		wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id);
 	}
+	snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+		 "0x%08x", etrack_id);
 
 	eth_hw_addr_set(netdev, wx->mac.perm_addr);
 	wx_mac_set_default_filter(wx, wx->mac.perm_addr);

drivers/net/ethernet/wangxun/txgbe/Makefile

@@ -7,4 +7,5 @@
 obj-$(CONFIG_TXGBE) += txgbe.o
 
 txgbe-objs := txgbe_main.o \
-              txgbe_hw.o
+              txgbe_hw.o \
+              txgbe_ethtool.o

drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phylink.h>
+#include <linux/netdevice.h>
+
+#include "../libwx/wx_ethtool.h"
+#include "txgbe_ethtool.h"
+
+static const struct ethtool_ops txgbe_ethtool_ops = {
+	.get_drvinfo		= wx_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+};
+
+void txgbe_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &txgbe_ethtool_ops;
+}

drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_ETHTOOL_H_
+#define _TXGBE_ETHTOOL_H_
+
+void txgbe_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* _TXGBE_ETHTOOL_H_ */

drivers/net/ethernet/wangxun/txgbe/txgbe_main.c

@@ -15,6 +15,7 @@
 #include "../libwx/wx_hw.h"
 #include "txgbe_type.h"
 #include "txgbe_hw.h"
+#include "txgbe_ethtool.h"
 
 char txgbe_driver_name[] = "txgbe";
 
@@ -565,6 +566,8 @@ static int txgbe_probe(struct pci_dev *pdev,
 		goto err_pci_release_regions;
 	}
 
+	wx->driver_name = txgbe_driver_name;
+	txgbe_set_ethtool_ops(netdev);
 	netdev->netdev_ops = &txgbe_netdev_ops;
 
 	/* setup the private structure */