1 files changed, 771 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
new file mode 100644
index 000000000..740850b64
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -0,0 +1,771 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ */
+
+#include "hns_dsaf_mac.h"
+#include "hns_dsaf_misc.h"
+#include "hns_dsaf_ppe.h"
+#include "hns_dsaf_reg.h"
+
+enum _dsm_op_index {
+	HNS_OP_RESET_FUNC               = 0x1,
+	HNS_OP_SERDES_LP_FUNC           = 0x2,
+	HNS_OP_LED_SET_FUNC             = 0x3,
+	HNS_OP_GET_PORT_TYPE_FUNC       = 0x4,
+	HNS_OP_GET_SFP_STAT_FUNC        = 0x5,
+	HNS_OP_LOCATE_LED_SET_FUNC      = 0x6,
+};
+
+enum _dsm_rst_type {
+	HNS_DSAF_RESET_FUNC     = 0x1,
+	HNS_PPE_RESET_FUNC      = 0x2,
+	HNS_XGE_RESET_FUNC      = 0x4,
+	HNS_GE_RESET_FUNC       = 0x5,
+	HNS_DSAF_CHN_RESET_FUNC = 0x6,
+	HNS_ROCE_RESET_FUNC     = 0x7,
+};
+
+static const guid_t hns_dsaf_acpi_dsm_guid =
+	GUID_INIT(0x1A85AA1A, 0xE293, 0x415E,
+		  0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A);
+
+static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val)
+{
+	if (dsaf_dev->sub_ctrl)
+		dsaf_write_syscon(dsaf_dev->sub_ctrl, reg, val);
+	else
+		dsaf_write_reg(dsaf_dev->sc_base, reg, val);
+}
+
+static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
+{
+	u32 ret = 0;
+	int err;
+
+	if (dsaf_dev->sub_ctrl) {
+		err = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg, &ret);
+		if (err)
+			dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n",
+				err);
+	} else {
+		ret = dsaf_read_reg(dsaf_dev->sc_base, reg);
+	}
+
+	return ret;
+}
+
+static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
+					  u32 link, u32 port, u32 act)
+{
+	union acpi_object *obj;
+	union acpi_object obj_args[3], argv4;
+
+	obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[0].integer.value = link;
+	obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[1].integer.value = port;
+	obj_args[2].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[2].integer.value = act;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 3;
+	argv4.package.elements = obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+				&hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
+	if (!obj) {
+		dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n",
+			 link, port, act);
+		return;
+	}
+
+	ACPI_FREE(obj);
+}
+
+static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb,
+						 u8 op_type, u32 locate,
+						 u32 port)
+{
+	union acpi_object obj_args[2], argv4;
+	union acpi_object *obj;
+
+	obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[0].integer.value = locate;
+	obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[1].integer.value = port;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 2;
+	argv4.package.elements = obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+				&hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
+	if (!obj) {
+		dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n",
+			locate, port);
+		return;
+	}
+
+	ACPI_FREE(obj);
+}
+
+static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
+			     u16 speed, int data)
+{
+	int speed_reg = 0;
+	u8 value;
+
+	if (!mac_cb) {
+		pr_err("sfp_led_opt mac_dev is null!\n");
+		return;
+	}
+	if (!mac_cb->cpld_ctrl) {
+		dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n",
+			mac_cb->mac_id);
+		return;
+	}
+
+	if (speed == MAC_SPEED_10000)
+		speed_reg = 1;
+
+	value = mac_cb->cpld_led_value;
+
+	if (link_status) {
+		dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
+		dsaf_set_field(value, DSAF_LED_SPEED_M,
+			       DSAF_LED_SPEED_S, speed_reg);
+		dsaf_set_bit(value, DSAF_LED_DATA_B, data);
+
+		if (value != mac_cb->cpld_led_value) {
+			dsaf_write_syscon(mac_cb->cpld_ctrl,
+					  mac_cb->cpld_ctrl_reg, value);
+			mac_cb->cpld_led_value = value;
+		}
+	} else {
+		value = (mac_cb->cpld_led_value) & (0x1 << DSAF_LED_ANCHOR_B);
+		dsaf_write_syscon(mac_cb->cpld_ctrl,
+				  mac_cb->cpld_ctrl_reg, value);
+		mac_cb->cpld_led_value = value;
+	}
+}
+
+static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status,
+				  u16 speed, int data)
+{
+	if (!mac_cb) {
+		pr_err("cpld_led_set mac_cb is null!\n");
+		return;
+	}
+
+	hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
+				      link_status, mac_cb->mac_id, data);
+}
+
+static void cpld_led_reset(struct hns_mac_cb *mac_cb)
+{
+	if (!mac_cb || !mac_cb->cpld_ctrl)
+		return;
+
+	dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+			  CPLD_LED_DEFAULT_VALUE);
+	mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
+}
+
+static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
+{
+	if (!mac_cb) {
+		pr_err("cpld_led_reset mac_cb is null!\n");
+		return;
+	}
+
+	if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
+		return;
+
+	hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
+				      0, mac_cb->mac_id, 0);
+}
+
+static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
+			   enum hnae_led_state status)
+{
+	u32 val = 0;
+	int ret;
+
+	if (!mac_cb->cpld_ctrl)
+		return 0;
+
+	switch (status) {
+	case HNAE_LED_ACTIVE:
+		ret = dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				       &val);
+		if (ret)
+			return ret;
+
+		dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE);
+		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				  val);
+		mac_cb->cpld_led_value = val;
+		break;
+	case HNAE_LED_INACTIVE:
+		dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
+			     CPLD_LED_DEFAULT_VALUE);
+		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				  mac_cb->cpld_led_value);
+		break;
+	default:
+		dev_err(mac_cb->dev, "invalid led state: %d!", status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb,
+				enum hnae_led_state status)
+{
+	switch (status) {
+	case HNAE_LED_ACTIVE:
+		hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
+						     HNS_OP_LOCATE_LED_SET_FUNC,
+						     CPLD_LED_ON_VALUE,
+						     mac_cb->mac_id);
+		break;
+	case HNAE_LED_INACTIVE:
+		hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
+						     HNS_OP_LOCATE_LED_SET_FUNC,
+						     CPLD_LED_DEFAULT_VALUE,
+						     mac_cb->mac_id);
+		break;
+	default:
+		dev_err(mac_cb->dev, "invalid led state: %d!", status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#define RESET_REQ_OR_DREQ 1
+
+static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type,
+				       u32 port_type, u32 port, u32 val)
+{
+	union acpi_object *obj;
+	union acpi_object obj_args[3], argv4;
+
+	obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[0].integer.value = port_type;
+	obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[1].integer.value = port;
+	obj_args[2].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[2].integer.value = val;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 3;
+	argv4.package.elements = obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev),
+				&hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
+	if (!obj) {
+		dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!",
+			 port_type, port);
+		return;
+	}
+
+	ACPI_FREE(obj);
+}
+
+static void hns_dsaf_rst(struct dsaf_device *dsaf_dev, bool dereset)
+{
+	u32 xbar_reg_addr;
+	u32 nt_reg_addr;
+
+	if (!dereset) {
+		xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
+		nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
+	} else {
+		xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
+		nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
+	}
+
+	dsaf_write_sub(dsaf_dev, xbar_reg_addr, RESET_REQ_OR_DREQ);
+	dsaf_write_sub(dsaf_dev, nt_reg_addr, RESET_REQ_OR_DREQ);
+}
+
+static void hns_dsaf_rst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_DSAF_RESET_FUNC,
+				   0, dereset);
+}
+
+static void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
+				      bool dereset)
+{
+	u32 reg_val = 0;
+	u32 reg_addr;
+
+	if (port >= DSAF_XGE_NUM)
+		return;
+
+	reg_val |= RESET_REQ_OR_DREQ;
+	reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off;
+
+	if (!dereset)
+		reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
+	else
+		reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
+
+	dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
+}
+
+static void hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
+					   u32 port, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_XGE_RESET_FUNC, port, dereset);
+}
+
+/**
+ * hns_dsaf_srst_chns - reset dsaf channels
+ * @dsaf_dev: dsaf device struct pointer
+ * @msk: xbar channels mask value:
+ * @dereset: false - request reset , true - drop reset
+ *
+ * bit0-5 for xge0-5
+ * bit6-11 for ppe0-5
+ * bit12-17 for roce0-5
+ * bit18-19 for com/dfx
+ */
+static void
+hns_dsaf_srst_chns(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
+{
+	u32 reg_addr;
+
+	if (!dereset)
+		reg_addr = DSAF_SUB_SC_DSAF_RESET_REQ_REG;
+	else
+		reg_addr = DSAF_SUB_SC_DSAF_RESET_DREQ_REG;
+
+	dsaf_write_sub(dsaf_dev, reg_addr, msk);
+}
+
+/**
+ * hns_dsaf_srst_chns_acpi - reset dsaf channels
+ * @dsaf_dev: dsaf device struct pointer
+ * @msk: xbar channels mask value:
+ * @dereset: false - request reset , true - drop reset
+ *
+ * bit0-5 for xge0-5
+ * bit6-11 for ppe0-5
+ * bit12-17 for roce0-5
+ * bit18-19 for com/dfx
+ */
+static void
+hns_dsaf_srst_chns_acpi(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_DSAF_CHN_RESET_FUNC,
+				   msk, dereset);
+}
+
+static void hns_dsaf_roce_srst(struct dsaf_device *dsaf_dev, bool dereset)
+{
+	if (!dereset) {
+		dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_RESET_REQ_REG, 1);
+	} else {
+		dsaf_write_sub(dsaf_dev,
+			       DSAF_SUB_SC_ROCEE_CLK_DIS_REG, 1);
+		dsaf_write_sub(dsaf_dev,
+			       DSAF_SUB_SC_ROCEE_RESET_DREQ_REG, 1);
+		msleep(20);
+		dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_CLK_EN_REG, 1);
+	}
+}
+
+static void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_ROCE_RESET_FUNC, 0, dereset);
+}
+
+static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
+				     bool dereset)
+{
+	u32 reg_val_1;
+	u32 reg_val_2;
+	u32 port_rst_off;
+
+	if (port >= DSAF_GE_NUM)
+		return;
+
+	if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
+		/* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
+		   We need check to prevent array overflow */
+		if (port >= DSAF_MAX_PORT_NUM)
+			return;
+		reg_val_1  = 0x1 << port;
+		port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
+		/* there is difference between V1 and V2 in register.*/
+		reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ?
+				0x1041041 : 0x2082082;
+		reg_val_2 <<= port_rst_off;
+
+		if (!dereset) {
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
+				       reg_val_1);
+
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG,
+				       reg_val_2);
+		} else {
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG,
+				       reg_val_2);
+
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
+				       reg_val_1);
+		}
+	} else {
+		reg_val_1 = 0x15540;
+		reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40;
+
+		reg_val_1 <<= dsaf_dev->reset_offset;
+		reg_val_2 <<= dsaf_dev->reset_offset;
+
+		if (!dereset) {
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
+				       reg_val_1);
+
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG,
+				       reg_val_2);
+		} else {
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
+				       reg_val_1);
+
+			dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG,
+				       reg_val_2);
+		}
+	}
+}
+
+static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
+					  u32 port, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_GE_RESET_FUNC, port, dereset);
+}
+
+static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
+				 bool dereset)
+{
+	u32 reg_val = 0;
+	u32 reg_addr;
+
+	reg_val |= RESET_REQ_OR_DREQ <<	dsaf_dev->mac_cb[port]->port_rst_off;
+
+	if (!dereset)
+		reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
+	else
+		reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
+
+	dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
+}
+
+static void
+hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset)
+{
+	hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
+				   HNS_PPE_RESET_FUNC, port, dereset);
+}
+
+static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset)
+{
+	u32 reg_val;
+	u32 reg_addr;
+
+	if (!(dev_of_node(dsaf_dev->dev)))
+		return;
+
+	if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
+		reg_val = RESET_REQ_OR_DREQ;
+		if (!dereset)
+			reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
+		else
+			reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
+
+	} else {
+		reg_val = 0x100 << dsaf_dev->reset_offset;
+
+		if (!dereset)
+			reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
+		else
+			reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
+	}
+
+	dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
+}
+
+/**
+ * hns_mac_get_phy_if - get phy ifterface form serdes mode
+ * @mac_cb: mac control block
+ * retuen phy interface
+ */
+static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
+{
+	u32 mode;
+	u32 reg;
+	bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
+	int mac_id = mac_cb->mac_id;
+	phy_interface_t phy_if;
+
+	if (is_ver1) {
+		if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev))
+			return PHY_INTERFACE_MODE_SGMII;
+
+		if (mac_id >= 0 && mac_id <= 3)
+			reg = HNS_MAC_HILINK4_REG;
+		else
+			reg = HNS_MAC_HILINK3_REG;
+	} else {
+		if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3)
+			reg = HNS_MAC_HILINK4V2_REG;
+		else
+			reg = HNS_MAC_HILINK3V2_REG;
+	}
+
+	mode = dsaf_read_sub(mac_cb->dsaf_dev, reg);
+	if (dsaf_get_bit(mode, mac_cb->port_mode_off))
+		phy_if = PHY_INTERFACE_MODE_XGMII;
+	else
+		phy_if = PHY_INTERFACE_MODE_SGMII;
+
+	return phy_if;
+}
+
+static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
+{
+	phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
+	union acpi_object *obj;
+	union acpi_object obj_args, argv4;
+
+	obj_args.integer.type = ACPI_TYPE_INTEGER;
+	obj_args.integer.value = mac_cb->mac_id;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 1;
+	argv4.package.elements = &obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+				&hns_dsaf_acpi_dsm_guid, 0,
+				HNS_OP_GET_PORT_TYPE_FUNC, &argv4);
+
+	if (!obj || obj->type != ACPI_TYPE_INTEGER)
+		return phy_if;
+
+	phy_if = obj->integer.value ?
+		PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII;
+
+	dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if);
+
+	ACPI_FREE(obj);
+
+	return phy_if;
+}
+
+static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
+{
+	u32 val = 0;
+	int ret;
+
+	if (!mac_cb->cpld_ctrl)
+		return -ENODEV;
+
+	ret = dsaf_read_syscon(mac_cb->cpld_ctrl,
+			       mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
+			       &val);
+	if (ret)
+		return ret;
+
+	*sfp_prsnt = !val;
+	return 0;
+}
+
+static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
+{
+	union acpi_object *obj;
+	union acpi_object obj_args, argv4;
+
+	obj_args.integer.type = ACPI_TYPE_INTEGER;
+	obj_args.integer.value = mac_cb->mac_id;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 1;
+	argv4.package.elements = &obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+				&hns_dsaf_acpi_dsm_guid, 0,
+				HNS_OP_GET_SFP_STAT_FUNC, &argv4);
+
+	if (!obj || obj->type != ACPI_TYPE_INTEGER)
+		return -ENODEV;
+
+	*sfp_prsnt = obj->integer.value;
+
+	ACPI_FREE(obj);
+
+	return 0;
+}
+
+/**
+ * hns_mac_config_sds_loopback - set loop back for serdes
+ * @mac_cb: mac control block
+ * @en: enable or disable
+ * return 0 == success
+ */
+static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
+{
+	const u8 lane_id[] = {
+		0,	/* mac 0 -> lane 0 */
+		1,	/* mac 1 -> lane 1 */
+		2,	/* mac 2 -> lane 2 */
+		3,	/* mac 3 -> lane 3 */
+		2,	/* mac 4 -> lane 2 */
+		3,	/* mac 5 -> lane 3 */
+		0,	/* mac 6 -> lane 0 */
+		1	/* mac 7 -> lane 1 */
+	};
+#define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
+	u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
+
+	int sfp_prsnt = 0;
+	int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
+
+	if (!mac_cb->phy_dev) {
+		if (ret)
+			pr_info("please confirm sfp is present or not\n");
+		else
+			if (!sfp_prsnt)
+				pr_info("no sfp in this eth\n");
+	}
+
+	if (mac_cb->serdes_ctrl) {
+		u32 origin = 0;
+
+		if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
+#define HILINK_ACCESS_SEL_CFG		0x40008
+			/* hilink4 & hilink3 use the same xge training and
+			 * xge u adaptor. There is a hilink access sel cfg
+			 * register to select which one to be configed
+			 */
+			if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) &&
+			    (mac_cb->mac_id <= 3))
+				dsaf_write_syscon(mac_cb->serdes_ctrl,
+						  HILINK_ACCESS_SEL_CFG, 0);
+			else
+				dsaf_write_syscon(mac_cb->serdes_ctrl,
+						  HILINK_ACCESS_SEL_CFG, 3);
+		}
+
+		ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset,
+				       &origin);
+		if (ret)
+			return ret;
+
+		dsaf_set_field(origin, 1ull << 10, 10, en);
+		dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin);
+	} else {
+		u8 __iomem *base_addr = mac_cb->serdes_vaddr +
+				(mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
+		dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, en);
+	}
+
+	return 0;
+}
+
+static int
+hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en)
+{
+	union acpi_object *obj;
+	union acpi_object obj_args[3], argv4;
+
+	obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[0].integer.value = mac_cb->mac_id;
+	obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[1].integer.value = en;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 2;
+	argv4.package.elements = obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev),
+				&hns_dsaf_acpi_dsm_guid, 0,
+				HNS_OP_SERDES_LP_FUNC, &argv4);
+	if (!obj) {
+		dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!",
+			 mac_cb->mac_id);
+
+		return -ENOTSUPP;
+	}
+
+	ACPI_FREE(obj);
+
+	return 0;
+}
+
+struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
+{
+	struct dsaf_misc_op *misc_op;
+
+	misc_op = devm_kzalloc(dsaf_dev->dev, sizeof(*misc_op), GFP_KERNEL);
+	if (!misc_op)
+		return NULL;
+
+	if (dev_of_node(dsaf_dev->dev)) {
+		misc_op->cpld_set_led = hns_cpld_set_led;
+		misc_op->cpld_reset_led = cpld_led_reset;
+		misc_op->cpld_set_led_id = cpld_set_led_id;
+
+		misc_op->dsaf_reset = hns_dsaf_rst;
+		misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
+		misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
+		misc_op->ppe_srst = hns_ppe_srst_by_port;
+		misc_op->ppe_comm_srst = hns_ppe_com_srst;
+		misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns;
+		misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst;
+
+		misc_op->get_phy_if = hns_mac_get_phy_if;
+		misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
+
+		misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
+	} else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
+		misc_op->cpld_set_led = hns_cpld_set_led_acpi;
+		misc_op->cpld_reset_led = cpld_led_reset_acpi;
+		misc_op->cpld_set_led_id = cpld_set_led_id_acpi;
+
+		misc_op->dsaf_reset = hns_dsaf_rst_acpi;
+		misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
+		misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi;
+		misc_op->ppe_srst = hns_ppe_srst_by_port_acpi;
+		misc_op->ppe_comm_srst = hns_ppe_com_srst;
+		misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns_acpi;
+		misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi;
+
+		misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
+		misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;
+
+		misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
+	} else {
+		devm_kfree(dsaf_dev->dev, (void *)misc_op);
+		misc_op = NULL;
+	}
+
+	return (void *)misc_op;
+}
+
+struct
+platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
+{
+	struct device *dev;
+
+	dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
+	return dev ? to_platform_device(dev) : NULL;
+}