Merge branch 'add-support-of-hibmcge-ethernet-driver'

Jijie Shao says:

====================
Add support of HIBMCGE Ethernet Driver

This patch set adds the support of Hisilicon BMC Gigabit Ethernet Driver.

This patch set includes basic Rx/Tx functionality. It also includes
the registration and interrupt codes.

This work provides the initial support to the HIBMCGE and
would incrementally add features or enhancements.
====================

Link: https://patch.msgid.link/20241015123516.4035035-1-shaojijie@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

17 files changed, 1737 insertions, 1 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 16933f9faa0f..aed1fa42cfd2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10278,6 +10278,12 @@ S:	Maintained
 W:	http://www.hisilicon.com
 F:	drivers/net/ethernet/hisilicon/hns3/
 
+HISILICON NETWORK HIBMCGE DRIVER
+M:	Jijie Shao <shaojijie@huawei.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/hisilicon/hibmcge/
+
 HISILICON NETWORK SUBSYSTEM DRIVER
 M:	Jian Shen <shenjian15@huawei.com>
 M:	Salil Mehta <salil.mehta@huawei.com>
diff --git a/drivers/net/ethernet/hisilicon/Kconfig b/drivers/net/ethernet/hisilicon/Kconfig
index 3312e1d93c3b..65302c41bfb1 100644
--- a/drivers/net/ethernet/hisilicon/Kconfig
+++ b/drivers/net/ethernet/hisilicon/Kconfig
@@ -7,7 +7,6 @@ config NET_VENDOR_HISILICON
 	bool "Hisilicon devices"
 	default y
 	depends on OF || ACPI
-	depends on ARM || ARM64 || COMPILE_TEST
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
@@ -18,6 +17,8 @@ config NET_VENDOR_HISILICON
 
 if NET_VENDOR_HISILICON
 
+if ARM || ARM64 || COMPILE_TEST
+
 config HIX5HD2_GMAC
 	tristate "Hisilicon HIX5HD2 Family Network Device Support"
 	select PHYLIB
@@ -141,4 +142,19 @@ config HNS3_ENET
 
 endif #HNS3
 
+endif # ARM || ARM64 || COMPILE_TEST
+
+config HIBMCGE
+	tristate "Hisilicon BMC Gigabit Ethernet Device Support"
+	depends on PCI && PCI_MSI
+	select PHYLIB
+	select MOTORCOMM_PHY
+	select REALTEK_PHY
+	help
+	  If you wish to compile a kernel for a BMC with HIBMC-xx_gmac
+	  then you should answer Y to this. This makes this driver suitable for use
+	  on certain boards such as the HIBMC-210.
+
+	  If you are unsure, say N.
+
 endif # NET_VENDOR_HISILICON
diff --git a/drivers/net/ethernet/hisilicon/Makefile b/drivers/net/ethernet/hisilicon/Makefile
index 7f76d412047a..0e2cadfea8ff 100644
--- a/drivers/net/ethernet/hisilicon/Makefile
+++ b/drivers/net/ethernet/hisilicon/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_HNS_MDIO) += hns_mdio.o
 obj-$(CONFIG_HNS) += hns/
 obj-$(CONFIG_HNS3) += hns3/
 obj-$(CONFIG_HISI_FEMAC) += hisi_femac.o
+obj-$(CONFIG_HIBMCGE) += hibmcge/
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/Makefile b/drivers/net/ethernet/hisilicon/hibmcge/Makefile
new file mode 100644
index 000000000000..ae58ac38c206
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Makefile for the HISILICON BMC GE network device drivers.
+#
+
+obj-$(CONFIG_HIBMCGE) += hibmcge.o
+
+hibmcge-objs = hbg_main.o hbg_hw.o hbg_mdio.o hbg_irq.o hbg_txrx.o hbg_ethtool.o
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
new file mode 100644
index 000000000000..96daf058d387
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_COMMON_H
+#define __HBG_COMMON_H
+
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include "hbg_reg.h"
+
+#define HBG_STATUS_DISABLE		0x0
+#define HBG_STATUS_ENABLE		0x1
+#define HBG_RX_SKIP1			0x00
+#define HBG_RX_SKIP2			0x01
+#define HBG_VECTOR_NUM			4
+#define HBG_PCU_CACHE_LINE_SIZE		32
+#define HBG_TX_TIMEOUT_BUF_LEN		1024
+#define HBG_RX_DESCR			0x01
+
+#define HBG_PACKET_HEAD_SIZE	((HBG_RX_SKIP1 + HBG_RX_SKIP2 + \
+				  HBG_RX_DESCR) * HBG_PCU_CACHE_LINE_SIZE)
+
+enum hbg_dir {
+	HBG_DIR_TX = 1 << 0,
+	HBG_DIR_RX = 1 << 1,
+	HBG_DIR_TX_RX = HBG_DIR_TX | HBG_DIR_RX,
+};
+
+enum hbg_tx_state {
+	HBG_TX_STATE_COMPLETE = 0, /* clear state, must fix to 0 */
+	HBG_TX_STATE_START,
+};
+
+enum hbg_nic_state {
+	HBG_NIC_STATE_EVENT_HANDLING = 0,
+};
+
+struct hbg_buffer {
+	u32 state;
+	dma_addr_t state_dma;
+
+	struct sk_buff *skb;
+	dma_addr_t skb_dma;
+	u32 skb_len;
+
+	enum hbg_dir dir;
+	struct hbg_ring *ring;
+	struct hbg_priv *priv;
+};
+
+struct hbg_ring {
+	struct hbg_buffer *queue;
+	dma_addr_t queue_dma;
+
+	union {
+		u32 head;
+		u32 ntc;
+	};
+	union {
+		u32 tail;
+		u32 ntu;
+	};
+	u32 len;
+
+	enum hbg_dir dir;
+	struct hbg_priv *priv;
+	struct napi_struct napi;
+	char *tout_log_buf; /* tx timeout log buffer */
+};
+
+enum hbg_hw_event_type {
+	HBG_HW_EVENT_NONE = 0,
+	HBG_HW_EVENT_INIT, /* driver is loading */
+	HBG_HW_EVENT_RESET,
+};
+
+struct hbg_dev_specs {
+	u32 mac_id;
+	struct sockaddr mac_addr;
+	u32 phy_addr;
+	u32 mdio_frequency;
+	u32 rx_fifo_num;
+	u32 tx_fifo_num;
+	u32 vlan_layers;
+	u32 max_mtu;
+	u32 min_mtu;
+
+	u32 max_frame_len;
+	u32 rx_buf_size;
+};
+
+struct hbg_irq_info {
+	const char *name;
+	u32 mask;
+	bool re_enable;
+	bool need_print;
+	u64 count;
+
+	void (*irq_handle)(struct hbg_priv *priv, struct hbg_irq_info *info);
+};
+
+struct hbg_vector {
+	char name[HBG_VECTOR_NUM][32];
+	struct hbg_irq_info *info_array;
+	u32 info_array_len;
+};
+
+struct hbg_mac {
+	struct mii_bus *mdio_bus;
+	struct phy_device *phydev;
+	u8 phy_addr;
+
+	u32 speed;
+	u32 duplex;
+	u32 autoneg;
+	u32 link_status;
+};
+
+struct hbg_priv {
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	u8 __iomem *io_base;
+	struct hbg_dev_specs dev_specs;
+	unsigned long state;
+	struct hbg_mac mac;
+	struct hbg_vector vectors;
+	struct hbg_ring tx_ring;
+	struct hbg_ring rx_ring;
+};
+
+#endif
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_hw.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
new file mode 100644
index 000000000000..05295c2ad439
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/iopoll.h>
+#include <linux/minmax.h>
+#include "hbg_common.h"
+#include "hbg_hw.h"
+#include "hbg_reg.h"
+
+#define HBG_HW_EVENT_WAIT_TIMEOUT_US	(2 * 1000 * 1000)
+#define HBG_HW_EVENT_WAIT_INTERVAL_US	(10 * 1000)
+/* little endian or big endian.
+ * ctrl means packet description, data means skb packet data
+ */
+#define HBG_ENDIAN_CTRL_LE_DATA_BE	0x0
+#define HBG_PCU_FRAME_LEN_PLUS 4
+
+static bool hbg_hw_spec_is_valid(struct hbg_priv *priv)
+{
+	return hbg_reg_read(priv, HBG_REG_SPEC_VALID_ADDR) &&
+	       !hbg_reg_read(priv, HBG_REG_EVENT_REQ_ADDR);
+}
+
+int hbg_hw_event_notify(struct hbg_priv *priv,
+			enum hbg_hw_event_type event_type)
+{
+	bool is_valid;
+	int ret;
+
+	if (test_and_set_bit(HBG_NIC_STATE_EVENT_HANDLING, &priv->state))
+		return -EBUSY;
+
+	/* notify */
+	hbg_reg_write(priv, HBG_REG_EVENT_REQ_ADDR, event_type);
+
+	ret = read_poll_timeout(hbg_hw_spec_is_valid, is_valid, is_valid,
+				HBG_HW_EVENT_WAIT_INTERVAL_US,
+				HBG_HW_EVENT_WAIT_TIMEOUT_US,
+				HBG_HW_EVENT_WAIT_INTERVAL_US, priv);
+
+	clear_bit(HBG_NIC_STATE_EVENT_HANDLING, &priv->state);
+
+	if (ret)
+		dev_err(&priv->pdev->dev,
+			"event %d wait timeout\n", event_type);
+
+	return ret;
+}
+
+static int hbg_hw_dev_specs_init(struct hbg_priv *priv)
+{
+	struct hbg_dev_specs *specs = &priv->dev_specs;
+	u64 mac_addr;
+
+	if (!hbg_hw_spec_is_valid(priv)) {
+		dev_err(&priv->pdev->dev, "dev_specs not init\n");
+		return -EINVAL;
+	}
+
+	specs->mac_id = hbg_reg_read(priv, HBG_REG_MAC_ID_ADDR);
+	specs->phy_addr = hbg_reg_read(priv, HBG_REG_PHY_ID_ADDR);
+	specs->mdio_frequency = hbg_reg_read(priv, HBG_REG_MDIO_FREQ_ADDR);
+	specs->max_mtu = hbg_reg_read(priv, HBG_REG_MAX_MTU_ADDR);
+	specs->min_mtu = hbg_reg_read(priv, HBG_REG_MIN_MTU_ADDR);
+	specs->vlan_layers = hbg_reg_read(priv, HBG_REG_VLAN_LAYERS_ADDR);
+	specs->rx_fifo_num = hbg_reg_read(priv, HBG_REG_RX_FIFO_NUM_ADDR);
+	specs->tx_fifo_num = hbg_reg_read(priv, HBG_REG_TX_FIFO_NUM_ADDR);
+	mac_addr = hbg_reg_read64(priv, HBG_REG_MAC_ADDR_ADDR);
+	u64_to_ether_addr(mac_addr, (u8 *)specs->mac_addr.sa_data);
+
+	if (!is_valid_ether_addr((u8 *)specs->mac_addr.sa_data))
+		return -EADDRNOTAVAIL;
+
+	specs->max_frame_len = HBG_PCU_CACHE_LINE_SIZE + specs->max_mtu;
+	specs->rx_buf_size = HBG_PACKET_HEAD_SIZE + specs->max_frame_len;
+	return 0;
+}
+
+u32 hbg_hw_get_irq_status(struct hbg_priv *priv)
+{
+	u32 status;
+
+	status = hbg_reg_read(priv, HBG_REG_CF_INTRPT_STAT_ADDR);
+
+	hbg_field_modify(status, HBG_INT_MSK_TX_B,
+			 hbg_reg_read(priv, HBG_REG_CF_IND_TXINT_STAT_ADDR));
+	hbg_field_modify(status, HBG_INT_MSK_RX_B,
+			 hbg_reg_read(priv, HBG_REG_CF_IND_RXINT_STAT_ADDR));
+
+	return status;
+}
+
+void hbg_hw_irq_clear(struct hbg_priv *priv, u32 mask)
+{
+	if (FIELD_GET(HBG_INT_MSK_TX_B, mask))
+		return hbg_reg_write(priv, HBG_REG_CF_IND_TXINT_CLR_ADDR, 0x1);
+
+	if (FIELD_GET(HBG_INT_MSK_RX_B, mask))
+		return hbg_reg_write(priv, HBG_REG_CF_IND_RXINT_CLR_ADDR, 0x1);
+
+	return hbg_reg_write(priv, HBG_REG_CF_INTRPT_CLR_ADDR, mask);
+}
+
+bool hbg_hw_irq_is_enabled(struct hbg_priv *priv, u32 mask)
+{
+	if (FIELD_GET(HBG_INT_MSK_TX_B, mask))
+		return hbg_reg_read(priv, HBG_REG_CF_IND_TXINT_MSK_ADDR);
+
+	if (FIELD_GET(HBG_INT_MSK_RX_B, mask))
+		return hbg_reg_read(priv, HBG_REG_CF_IND_RXINT_MSK_ADDR);
+
+	return hbg_reg_read(priv, HBG_REG_CF_INTRPT_MSK_ADDR) & mask;
+}
+
+void hbg_hw_irq_enable(struct hbg_priv *priv, u32 mask, bool enable)
+{
+	u32 value;
+
+	if (FIELD_GET(HBG_INT_MSK_TX_B, mask))
+		return hbg_reg_write(priv,
+				     HBG_REG_CF_IND_TXINT_MSK_ADDR, enable);
+
+	if (FIELD_GET(HBG_INT_MSK_RX_B, mask))
+		return hbg_reg_write(priv,
+				     HBG_REG_CF_IND_RXINT_MSK_ADDR, enable);
+
+	value = hbg_reg_read(priv, HBG_REG_CF_INTRPT_MSK_ADDR);
+	if (enable)
+		value |= mask;
+	else
+		value &= ~mask;
+
+	hbg_reg_write(priv, HBG_REG_CF_INTRPT_MSK_ADDR, value);
+}
+
+void hbg_hw_set_uc_addr(struct hbg_priv *priv, u64 mac_addr)
+{
+	hbg_reg_write64(priv, HBG_REG_STATION_ADDR_LOW_2_ADDR, mac_addr);
+}
+
+static void hbg_hw_set_pcu_max_frame_len(struct hbg_priv *priv,
+					 u16 max_frame_len)
+{
+	max_frame_len = max_t(u32, max_frame_len, ETH_DATA_LEN);
+
+	/* lower two bits of value must be set to 0 */
+	max_frame_len = round_up(max_frame_len, HBG_PCU_FRAME_LEN_PLUS);
+
+	hbg_reg_write_field(priv, HBG_REG_MAX_FRAME_LEN_ADDR,
+			    HBG_REG_MAX_FRAME_LEN_M, max_frame_len);
+}
+
+static void hbg_hw_set_mac_max_frame_len(struct hbg_priv *priv,
+					 u16 max_frame_size)
+{
+	hbg_reg_write_field(priv, HBG_REG_MAX_FRAME_SIZE_ADDR,
+			    HBG_REG_MAX_FRAME_LEN_M, max_frame_size);
+}
+
+void hbg_hw_set_mtu(struct hbg_priv *priv, u16 mtu)
+{
+	hbg_hw_set_pcu_max_frame_len(priv, mtu);
+	hbg_hw_set_mac_max_frame_len(priv, mtu);
+}
+
+void hbg_hw_mac_enable(struct hbg_priv *priv, u32 enable)
+{
+	hbg_reg_write_field(priv, HBG_REG_PORT_ENABLE_ADDR,
+			    HBG_REG_PORT_ENABLE_TX_B, enable);
+	hbg_reg_write_field(priv, HBG_REG_PORT_ENABLE_ADDR,
+			    HBG_REG_PORT_ENABLE_RX_B, enable);
+}
+
+u32 hbg_hw_get_fifo_used_num(struct hbg_priv *priv, enum hbg_dir dir)
+{
+	if (dir & HBG_DIR_TX)
+		return hbg_reg_read_field(priv, HBG_REG_CF_CFF_DATA_NUM_ADDR,
+					  HBG_REG_CF_CFF_DATA_NUM_ADDR_TX_M);
+
+	if (dir & HBG_DIR_RX)
+		return hbg_reg_read_field(priv, HBG_REG_CF_CFF_DATA_NUM_ADDR,
+					  HBG_REG_CF_CFF_DATA_NUM_ADDR_RX_M);
+
+	return 0;
+}
+
+void hbg_hw_set_tx_desc(struct hbg_priv *priv, struct hbg_tx_desc *tx_desc)
+{
+	hbg_reg_write(priv, HBG_REG_TX_CFF_ADDR_0_ADDR, tx_desc->word0);
+	hbg_reg_write(priv, HBG_REG_TX_CFF_ADDR_1_ADDR, tx_desc->word1);
+	hbg_reg_write(priv, HBG_REG_TX_CFF_ADDR_2_ADDR, tx_desc->word2);
+	hbg_reg_write(priv, HBG_REG_TX_CFF_ADDR_3_ADDR, tx_desc->word3);
+}
+
+void hbg_hw_fill_buffer(struct hbg_priv *priv, u32 buffer_dma_addr)
+{
+	hbg_reg_write(priv, HBG_REG_RX_CFF_ADDR_ADDR, buffer_dma_addr);
+}
+
+void hbg_hw_adjust_link(struct hbg_priv *priv, u32 speed, u32 duplex)
+{
+	hbg_reg_write_field(priv, HBG_REG_PORT_MODE_ADDR,
+			    HBG_REG_PORT_MODE_M, speed);
+	hbg_reg_write_field(priv, HBG_REG_DUPLEX_TYPE_ADDR,
+			    HBG_REG_DUPLEX_B, duplex);
+}
+
+static void hbg_hw_init_transmit_ctrl(struct hbg_priv *priv)
+{
+	u32 ctrl = 0;
+
+	ctrl |= FIELD_PREP(HBG_REG_TRANSMIT_CTRL_AN_EN_B, HBG_STATUS_ENABLE);
+	ctrl |= FIELD_PREP(HBG_REG_TRANSMIT_CTRL_CRC_ADD_B, HBG_STATUS_ENABLE);
+	ctrl |= FIELD_PREP(HBG_REG_TRANSMIT_CTRL_PAD_EN_B, HBG_STATUS_ENABLE);
+
+	hbg_reg_write(priv, HBG_REG_TRANSMIT_CTRL_ADDR, ctrl);
+}
+
+static void hbg_hw_init_rx_ctrl(struct hbg_priv *priv)
+{
+	u32 ctrl = 0;
+
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_RX_GET_ADDR_MODE_B,
+			   HBG_STATUS_ENABLE);
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_TIME_INF_EN_B, HBG_STATUS_DISABLE);
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_RXBUF_1ST_SKIP_SIZE_M, HBG_RX_SKIP1);
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_RXBUF_1ST_SKIP_SIZE2_M,
+			   HBG_RX_SKIP2);
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_RX_ALIGN_NUM_M, NET_IP_ALIGN);
+	ctrl |= FIELD_PREP(HBG_REG_RX_CTRL_PORT_NUM, priv->dev_specs.mac_id);
+
+	hbg_reg_write(priv, HBG_REG_RX_CTRL_ADDR, ctrl);
+}
+
+static void hbg_hw_init_rx_control(struct hbg_priv *priv)
+{
+	hbg_hw_init_rx_ctrl(priv);
+
+	/* parse from L2 layer */
+	hbg_reg_write_field(priv, HBG_REG_RX_PKT_MODE_ADDR,
+			    HBG_REG_RX_PKT_MODE_PARSE_MODE_M, 0x1);
+
+	hbg_reg_write_field(priv, HBG_REG_RECV_CTRL_ADDR,
+			    HBG_REG_RECV_CTRL_STRIP_PAD_EN_B,
+			    HBG_STATUS_ENABLE);
+	hbg_reg_write_field(priv, HBG_REG_RX_BUF_SIZE_ADDR,
+			    HBG_REG_RX_BUF_SIZE_M, priv->dev_specs.rx_buf_size);
+	hbg_reg_write_field(priv, HBG_REG_CF_CRC_STRIP_ADDR,
+			    HBG_REG_CF_CRC_STRIP_B, HBG_STATUS_DISABLE);
+}
+
+int hbg_hw_init(struct hbg_priv *priv)
+{
+	int ret;
+
+	ret = hbg_hw_dev_specs_init(priv);
+	if (ret)
+		return ret;
+
+	hbg_reg_write_field(priv, HBG_REG_BUS_CTRL_ADDR,
+			    HBG_REG_BUS_CTRL_ENDIAN_M,
+			    HBG_ENDIAN_CTRL_LE_DATA_BE);
+	hbg_reg_write_field(priv, HBG_REG_MODE_CHANGE_EN_ADDR,
+			    HBG_REG_MODE_CHANGE_EN_B, HBG_STATUS_ENABLE);
+
+	hbg_hw_init_rx_control(priv);
+	hbg_hw_init_transmit_ctrl(priv);
+	return 0;
+}
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
new file mode 100644
index 000000000000..14fb39241c93
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_HW_H
+#define __HBG_HW_H
+
+#include <linux/bitfield.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
+
+static inline u32 hbg_reg_read(struct hbg_priv *priv, u32 addr)
+{
+	return readl(priv->io_base + addr);
+}
+
+static inline void hbg_reg_write(struct hbg_priv *priv, u32 addr, u32 value)
+{
+	writel(value, priv->io_base + addr);
+}
+
+static inline u64 hbg_reg_read64(struct hbg_priv *priv, u32 addr)
+{
+	return lo_hi_readq(priv->io_base + addr);
+}
+
+static inline void hbg_reg_write64(struct hbg_priv *priv, u32 addr, u64 value)
+{
+	lo_hi_writeq(value, priv->io_base + addr);
+}
+
+#define hbg_reg_read_field(priv, addr, mask) \
+		FIELD_GET(mask, hbg_reg_read(priv, addr))
+
+#define hbg_field_modify(reg_value, mask, value) ({	\
+		(reg_value) &= ~(mask);			\
+		(reg_value) |= FIELD_PREP(mask, value); })
+
+#define hbg_reg_write_field(priv, addr, mask, val) ({		\
+		typeof(priv) _priv = (priv);			\
+		typeof(addr) _addr = (addr);			\
+		u32 _value = hbg_reg_read(_priv, _addr);	\
+		hbg_field_modify(_value, mask, val);		\
+		hbg_reg_write(_priv, _addr, _value); })
+
+int hbg_hw_event_notify(struct hbg_priv *priv,
+			enum hbg_hw_event_type event_type);
+int hbg_hw_init(struct hbg_priv *priv);
+void hbg_hw_adjust_link(struct hbg_priv *priv, u32 speed, u32 duplex);
+u32 hbg_hw_get_irq_status(struct hbg_priv *priv);
+void hbg_hw_irq_clear(struct hbg_priv *priv, u32 mask);
+bool hbg_hw_irq_is_enabled(struct hbg_priv *priv, u32 mask);
+void hbg_hw_irq_enable(struct hbg_priv *priv, u32 mask, bool enable);
+void hbg_hw_set_mtu(struct hbg_priv *priv, u16 mtu);
+void hbg_hw_mac_enable(struct hbg_priv *priv, u32 enable);
+void hbg_hw_set_uc_addr(struct hbg_priv *priv, u64 mac_addr);
+u32 hbg_hw_get_fifo_used_num(struct hbg_priv *priv, enum hbg_dir dir);
+void hbg_hw_set_tx_desc(struct hbg_priv *priv, struct hbg_tx_desc *tx_desc);
+void hbg_hw_fill_buffer(struct hbg_priv *priv, u32 buffer_dma_addr);
+
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
new file mode 100644
index 000000000000..25dd25f096fe
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <linux/interrupt.h>
+#include "hbg_irq.h"
+#include "hbg_hw.h"
+
+static void hbg_irq_handle_err(struct hbg_priv *priv,
+			       struct hbg_irq_info *irq_info)
+{
+	if (irq_info->need_print)
+		dev_err(&priv->pdev->dev,
+			"receive error interrupt: %s\n", irq_info->name);
+}
+
+static void hbg_irq_handle_tx(struct hbg_priv *priv,
+			      struct hbg_irq_info *irq_info)
+{
+	napi_schedule(&priv->tx_ring.napi);
+}
+
+static void hbg_irq_handle_rx(struct hbg_priv *priv,
+			      struct hbg_irq_info *irq_info)
+{
+	napi_schedule(&priv->rx_ring.napi);
+}
+
+#define HBG_TXRX_IRQ_I(name, handle) \
+	{#name, HBG_INT_MSK_##name##_B, false, false, 0, handle}
+#define HBG_ERR_IRQ_I(name, need_print) \
+	{#name, HBG_INT_MSK_##name##_B, true, need_print, 0, hbg_irq_handle_err}
+
+static struct hbg_irq_info hbg_irqs[] = {
+	HBG_TXRX_IRQ_I(RX, hbg_irq_handle_rx),
+	HBG_TXRX_IRQ_I(TX, hbg_irq_handle_tx),
+	HBG_ERR_IRQ_I(MAC_MII_FIFO_ERR, true),
+	HBG_ERR_IRQ_I(MAC_PCS_RX_FIFO_ERR, true),
+	HBG_ERR_IRQ_I(MAC_PCS_TX_FIFO_ERR, true),
+	HBG_ERR_IRQ_I(MAC_APP_RX_FIFO_ERR, true),
+	HBG_ERR_IRQ_I(MAC_APP_TX_FIFO_ERR, true),
+	HBG_ERR_IRQ_I(SRAM_PARITY_ERR, true),
+	HBG_ERR_IRQ_I(TX_AHB_ERR, true),
+	HBG_ERR_IRQ_I(RX_BUF_AVL, false),
+	HBG_ERR_IRQ_I(REL_BUF_ERR, true),
+	HBG_ERR_IRQ_I(TXCFG_AVL, false),
+	HBG_ERR_IRQ_I(TX_DROP, false),
+	HBG_ERR_IRQ_I(RX_DROP, false),
+	HBG_ERR_IRQ_I(RX_AHB_ERR, true),
+	HBG_ERR_IRQ_I(MAC_FIFO_ERR, false),
+	HBG_ERR_IRQ_I(RBREQ_ERR, false),
+	HBG_ERR_IRQ_I(WE_ERR, false),
+};
+
+static irqreturn_t hbg_irq_handle(int irq_num, void *p)
+{
+	struct hbg_irq_info *info;
+	struct hbg_priv *priv = p;
+	u32 status;
+	u32 i;
+
+	status = hbg_hw_get_irq_status(priv);
+	for (i = 0; i < priv->vectors.info_array_len; i++) {
+		info = &priv->vectors.info_array[i];
+		if (status & info->mask) {
+			if (!hbg_hw_irq_is_enabled(priv, info->mask))
+				continue;
+
+			hbg_hw_irq_enable(priv, info->mask, false);
+			hbg_hw_irq_clear(priv, info->mask);
+
+			info->count++;
+			if (info->irq_handle)
+				info->irq_handle(priv, info);
+
+			if (info->re_enable)
+				hbg_hw_irq_enable(priv, info->mask, true);
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static const char *irq_names_map[HBG_VECTOR_NUM] = { "tx", "rx",
+						     "err", "mdio" };
+
+int hbg_irq_init(struct hbg_priv *priv)
+{
+	struct hbg_vector *vectors = &priv->vectors;
+	struct device *dev = &priv->pdev->dev;
+	int ret, id;
+	u32 i;
+
+	/* used pcim_enable_device(),  so the vectors become device managed */
+	ret = pci_alloc_irq_vectors(priv->pdev, HBG_VECTOR_NUM, HBG_VECTOR_NUM,
+				    PCI_IRQ_MSI | PCI_IRQ_MSIX);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to allocate vectors\n");
+
+	if (ret != HBG_VECTOR_NUM)
+		return dev_err_probe(dev, -EINVAL,
+				     "requested %u MSI, but allocated %d MSI\n",
+				     HBG_VECTOR_NUM, ret);
+
+	/* mdio irq not requested, so the number of requested interrupts
+	 * is HBG_VECTOR_NUM - 1.
+	 */
+	for (i = 0; i < HBG_VECTOR_NUM - 1; i++) {
+		id = pci_irq_vector(priv->pdev, i);
+		if (id < 0)
+			return dev_err_probe(dev, id, "failed to get irq id\n");
+
+		snprintf(vectors->name[i], sizeof(vectors->name[i]), "%s-%s-%s",
+			 dev_driver_string(dev), pci_name(priv->pdev),
+			 irq_names_map[i]);
+
+		ret = devm_request_irq(dev, id, hbg_irq_handle, 0,
+				       vectors->name[i], priv);
+		if (ret)
+			return dev_err_probe(dev, ret,
+					     "failed to request irq: %s\n",
+					     irq_names_map[i]);
+	}
+
+	vectors->info_array = hbg_irqs;
+	vectors->info_array_len = ARRAY_SIZE(hbg_irqs);
+	return 0;
+}
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.h
new file mode 100644
index 000000000000..5c5323cfc751
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_IRQ_H
+#define __HBG_IRQ_H
+
+#include "hbg_common.h"
+
+int hbg_irq_init(struct hbg_priv *priv);
+
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
new file mode 100644
index 000000000000..75505fb5cc4a
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#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"
+#include "hbg_txrx.h"
+
+static void hbg_change_mtu(struct hbg_priv *priv, int new_mtu);
+
+static void hbg_all_irq_enable(struct hbg_priv *priv, bool enabled)
+{
+	struct hbg_irq_info *info;
+	u32 i;
+
+	for (i = 0; i < priv->vectors.info_array_len; i++) {
+		info = &priv->vectors.info_array[i];
+		hbg_hw_irq_enable(priv, info->mask, enabled);
+	}
+}
+
+static int hbg_net_open(struct net_device *netdev)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+	int ret;
+
+	ret = hbg_txrx_init(priv);
+	if (ret)
+		return ret;
+
+	hbg_all_irq_enable(priv, true);
+	hbg_hw_mac_enable(priv, HBG_STATUS_ENABLE);
+	netif_start_queue(netdev);
+	hbg_phy_start(priv);
+
+	return 0;
+}
+
+/* This function only can be called after hbg_txrx_uninit() */
+static int hbg_hw_txrx_clear(struct hbg_priv *priv)
+{
+	int ret;
+
+	/* After ring buffers have been released,
+	 * do a reset to release hw fifo rx ring buffer
+	 */
+	ret = hbg_hw_event_notify(priv, HBG_HW_EVENT_RESET);
+	if (ret)
+		return ret;
+
+	/* After reset, regs need to be reconfigured */
+	hbg_hw_init(priv);
+	hbg_hw_set_uc_addr(priv, ether_addr_to_u64(priv->netdev->dev_addr));
+	hbg_change_mtu(priv, priv->netdev->mtu);
+
+	return 0;
+}
+
+static int hbg_net_stop(struct net_device *netdev)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+
+	hbg_phy_stop(priv);
+	netif_stop_queue(netdev);
+	hbg_hw_mac_enable(priv, HBG_STATUS_DISABLE);
+	hbg_all_irq_enable(priv, false);
+	hbg_txrx_uninit(priv);
+	return hbg_hw_txrx_clear(priv);
+}
+
+static int hbg_net_set_mac_address(struct net_device *netdev, void *addr)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+	u8 *mac_addr;
+
+	mac_addr = ((struct sockaddr *)addr)->sa_data;
+
+	if (!is_valid_ether_addr(mac_addr))
+		return -EADDRNOTAVAIL;
+
+	hbg_hw_set_uc_addr(priv, ether_addr_to_u64(mac_addr));
+	dev_addr_set(netdev, mac_addr);
+
+	return 0;
+}
+
+static void hbg_change_mtu(struct hbg_priv *priv, int new_mtu)
+{
+	u32 frame_len;
+
+	frame_len = new_mtu + VLAN_HLEN * priv->dev_specs.vlan_layers +
+		    ETH_HLEN + ETH_FCS_LEN;
+	hbg_hw_set_mtu(priv, frame_len);
+}
+
+static int hbg_net_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	hbg_change_mtu(priv, new_mtu);
+	WRITE_ONCE(netdev->mtu, new_mtu);
+
+	dev_dbg(&priv->pdev->dev,
+		"change mtu from %u to %u\n", netdev->mtu, new_mtu);
+
+	return 0;
+}
+
+static void hbg_net_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+	struct hbg_ring *ring = &priv->tx_ring;
+	char *buf = ring->tout_log_buf;
+	u32 pos = 0;
+
+	pos += scnprintf(buf + pos, HBG_TX_TIMEOUT_BUF_LEN - pos,
+			 "ring used num: %u, fifo used num: %u\n",
+			 hbg_get_queue_used_num(ring),
+			 hbg_hw_get_fifo_used_num(priv, HBG_DIR_TX));
+	pos += scnprintf(buf + pos, HBG_TX_TIMEOUT_BUF_LEN - pos,
+			 "ntc: %u, ntu: %u, irq enabled: %u\n",
+			 ring->ntc, ring->ntu,
+			 hbg_hw_irq_is_enabled(priv, HBG_INT_MSK_TX_B));
+
+	netdev_info(netdev, "%s", buf);
+}
+
+static const struct net_device_ops hbg_netdev_ops = {
+	.ndo_open		= hbg_net_open,
+	.ndo_stop		= hbg_net_stop,
+	.ndo_start_xmit		= hbg_net_start_xmit,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= hbg_net_set_mac_address,
+	.ndo_change_mtu		= hbg_net_change_mtu,
+	.ndo_tx_timeout		= hbg_net_tx_timeout,
+};
+
+static int hbg_init(struct hbg_priv *priv)
+{
+	int ret;
+
+	ret = hbg_hw_event_notify(priv, HBG_HW_EVENT_INIT);
+	if (ret)
+		return ret;
+
+	ret = hbg_hw_init(priv);
+	if (ret)
+		return ret;
+
+	ret = hbg_irq_init(priv);
+	if (ret)
+		return ret;
+
+	return hbg_mdio_init(priv);
+}
+
+static int hbg_pci_init(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct hbg_priv *priv = netdev_priv(netdev);
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	ret = pcim_enable_device(pdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to enable PCI device\n");
+
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to set PCI DMA mask\n");
+
+	ret = pcim_iomap_regions(pdev, BIT(0), dev_driver_string(dev));
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to map PCI bar space\n");
+
+	priv->io_base = pcim_iomap_table(pdev)[0];
+	if (!priv->io_base)
+		return dev_err_probe(dev, -ENOMEM, "failed to get io base\n");
+
+	pci_set_master(pdev);
+	return 0;
+}
+
+static int hbg_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct device *dev = &pdev->dev;
+	struct net_device *netdev;
+	struct hbg_priv *priv;
+	int ret;
+
+	netdev = devm_alloc_etherdev(dev, sizeof(struct hbg_priv));
+	if (!netdev)
+		return -ENOMEM;
+
+	pci_set_drvdata(pdev, netdev);
+	SET_NETDEV_DEV(netdev, dev);
+
+	priv = netdev_priv(netdev);
+	priv->netdev = netdev;
+	priv->pdev = pdev;
+
+	ret = hbg_pci_init(pdev);
+	if (ret)
+		return ret;
+
+	ret = hbg_init(priv);
+	if (ret)
+		return ret;
+
+	netdev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
+	netdev->max_mtu = priv->dev_specs.max_mtu;
+	netdev->min_mtu = priv->dev_specs.min_mtu;
+	netdev->netdev_ops = &hbg_netdev_ops;
+	netdev->watchdog_timeo = 5 * HZ;
+
+	hbg_change_mtu(priv, ETH_DATA_LEN);
+	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");
+
+	netif_carrier_off(netdev);
+	return 0;
+}
+
+static const struct pci_device_id hbg_pci_tbl[] = {
+	{PCI_VDEVICE(HUAWEI, 0x3730), 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, hbg_pci_tbl);
+
+static struct pci_driver hbg_driver = {
+	.name		= "hibmcge",
+	.id_table	= hbg_pci_tbl,
+	.probe		= hbg_probe,
+};
+module_pci_driver(hbg_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
+MODULE_DESCRIPTION("hibmcge driver");
+MODULE_VERSION("1.0");
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c
new file mode 100644
index 000000000000..a3479fba8501
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <linux/phy.h>
+#include "hbg_common.h"
+#include "hbg_hw.h"
+#include "hbg_mdio.h"
+#include "hbg_reg.h"
+
+#define HBG_MAC_GET_PRIV(mac) ((struct hbg_priv *)(mac)->mdio_bus->priv)
+#define HBG_MII_BUS_GET_MAC(bus) (&((struct hbg_priv *)(bus)->priv)->mac)
+
+#define HBG_MDIO_C22_MODE		0x1
+#define HBG_MDIO_C22_REG_WRITE		0x1
+#define HBG_MDIO_C22_REG_READ		0x2
+
+#define HBG_MDIO_OP_TIMEOUT_US		(1 * 1000 * 1000)
+#define HBG_MDIO_OP_INTERVAL_US		(5 * 1000)
+
+static void hbg_mdio_set_command(struct hbg_mac *mac, u32 cmd)
+{
+	hbg_reg_write(HBG_MAC_GET_PRIV(mac), HBG_REG_MDIO_COMMAND_ADDR, cmd);
+}
+
+static void hbg_mdio_get_command(struct hbg_mac *mac, u32 *cmd)
+{
+	*cmd = hbg_reg_read(HBG_MAC_GET_PRIV(mac), HBG_REG_MDIO_COMMAND_ADDR);
+}
+
+static void hbg_mdio_set_wdata_reg(struct hbg_mac *mac, u16 wdata_value)
+{
+	hbg_reg_write_field(HBG_MAC_GET_PRIV(mac), HBG_REG_MDIO_WDATA_ADDR,
+			    HBG_REG_MDIO_WDATA_M, wdata_value);
+}
+
+static u32 hbg_mdio_get_rdata_reg(struct hbg_mac *mac)
+{
+	return hbg_reg_read_field(HBG_MAC_GET_PRIV(mac),
+				  HBG_REG_MDIO_RDATA_ADDR,
+				  HBG_REG_MDIO_WDATA_M);
+}
+
+static int hbg_mdio_wait_ready(struct hbg_mac *mac)
+{
+	struct hbg_priv *priv = HBG_MAC_GET_PRIV(mac);
+	u32 cmd = 0;
+	int ret;
+
+	ret = readl_poll_timeout(priv->io_base + HBG_REG_MDIO_COMMAND_ADDR, cmd,
+				 !FIELD_GET(HBG_REG_MDIO_COMMAND_START_B, cmd),
+				 HBG_MDIO_OP_INTERVAL_US,
+				 HBG_MDIO_OP_TIMEOUT_US);
+
+	return ret ? -ETIMEDOUT : 0;
+}
+
+static int hbg_mdio_cmd_send(struct hbg_mac *mac, u32 prt_addr, u32 dev_addr,
+			     u32 type, u32 op_code)
+{
+	u32 cmd = 0;
+
+	hbg_mdio_get_command(mac, &cmd);
+	hbg_field_modify(cmd, HBG_REG_MDIO_COMMAND_ST_M, type);
+	hbg_field_modify(cmd, HBG_REG_MDIO_COMMAND_OP_M, op_code);
+	hbg_field_modify(cmd, HBG_REG_MDIO_COMMAND_PRTAD_M, prt_addr);
+	hbg_field_modify(cmd, HBG_REG_MDIO_COMMAND_DEVAD_M, dev_addr);
+
+	/* if auto scan enabled, this value need fix to 0 */
+	hbg_field_modify(cmd, HBG_REG_MDIO_COMMAND_START_B, 0x1);
+
+	hbg_mdio_set_command(mac, cmd);
+
+	/* wait operation complete and check the result */
+	return hbg_mdio_wait_ready(mac);
+}
+
+static int hbg_mdio_read22(struct mii_bus *bus, int phy_addr, int regnum)
+{
+	struct hbg_mac *mac = HBG_MII_BUS_GET_MAC(bus);
+	int ret;
+
+	ret = hbg_mdio_cmd_send(mac, phy_addr, regnum, HBG_MDIO_C22_MODE,
+				HBG_MDIO_C22_REG_READ);
+	if (ret)
+		return ret;
+
+	return hbg_mdio_get_rdata_reg(mac);
+}
+
+static int hbg_mdio_write22(struct mii_bus *bus, int phy_addr, int regnum,
+			    u16 val)
+{
+	struct hbg_mac *mac = HBG_MII_BUS_GET_MAC(bus);
+
+	hbg_mdio_set_wdata_reg(mac, val);
+	return hbg_mdio_cmd_send(mac, phy_addr, regnum, HBG_MDIO_C22_MODE,
+				 HBG_MDIO_C22_REG_WRITE);
+}
+
+static void hbg_mdio_init_hw(struct hbg_priv *priv)
+{
+	u32 freq = priv->dev_specs.mdio_frequency;
+	struct hbg_mac *mac = &priv->mac;
+	u32 cmd = 0;
+
+	cmd |= FIELD_PREP(HBG_REG_MDIO_COMMAND_ST_M, HBG_MDIO_C22_MODE);
+	cmd |= FIELD_PREP(HBG_REG_MDIO_COMMAND_AUTO_SCAN_B, HBG_STATUS_DISABLE);
+
+	/* freq use two bits, which are stored in clk_sel and clk_sel_exp */
+	cmd |= FIELD_PREP(HBG_REG_MDIO_COMMAND_CLK_SEL_B, freq & 0x1);
+	cmd |= FIELD_PREP(HBG_REG_MDIO_COMMAND_CLK_SEL_EXP_B,
+			  (freq >> 1) & 0x1);
+
+	hbg_mdio_set_command(mac, cmd);
+}
+
+static void hbg_phy_adjust_link(struct net_device *netdev)
+{
+	struct hbg_priv *priv = netdev_priv(netdev);
+	struct phy_device *phydev = netdev->phydev;
+	u32 speed;
+
+	if (phydev->link != priv->mac.link_status) {
+		if (phydev->link) {
+			switch (phydev->speed) {
+			case SPEED_10:
+				speed = HBG_PORT_MODE_SGMII_10M;
+				break;
+			case SPEED_100:
+				speed = HBG_PORT_MODE_SGMII_100M;
+				break;
+			case SPEED_1000:
+				speed = HBG_PORT_MODE_SGMII_1000M;
+				break;
+			default:
+				return;
+			}
+
+			priv->mac.speed = speed;
+			priv->mac.duplex = phydev->duplex;
+			priv->mac.autoneg = phydev->autoneg;
+			hbg_hw_adjust_link(priv, speed, phydev->duplex);
+		}
+
+		priv->mac.link_status = phydev->link;
+		phy_print_status(phydev);
+	}
+}
+
+static void hbg_phy_disconnect(void *data)
+{
+	phy_disconnect((struct phy_device *)data);
+}
+
+static int hbg_phy_connect(struct hbg_priv *priv)
+{
+	struct phy_device *phydev = priv->mac.phydev;
+	struct device *dev = &priv->pdev->dev;
+	int ret;
+
+	ret = phy_connect_direct(priv->netdev, phydev, hbg_phy_adjust_link,
+				 PHY_INTERFACE_MODE_SGMII);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to connect phy\n");
+
+	ret = devm_add_action_or_reset(dev, hbg_phy_disconnect, phydev);
+	if (ret)
+		return ret;
+
+	phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
+	phy_attached_info(phydev);
+
+	return 0;
+}
+
+void hbg_phy_start(struct hbg_priv *priv)
+{
+	phy_start(priv->mac.phydev);
+}
+
+void hbg_phy_stop(struct hbg_priv *priv)
+{
+	phy_stop(priv->mac.phydev);
+}
+
+int hbg_mdio_init(struct hbg_priv *priv)
+{
+	struct device *dev = &priv->pdev->dev;
+	struct hbg_mac *mac = &priv->mac;
+	struct phy_device *phydev;
+	struct mii_bus *mdio_bus;
+	int ret;
+
+	mac->phy_addr = priv->dev_specs.phy_addr;
+	mdio_bus = devm_mdiobus_alloc(dev);
+	if (!mdio_bus)
+		return dev_err_probe(dev, -ENOMEM,
+				     "failed to alloc MDIO bus\n");
+
+	mdio_bus->parent = dev;
+	mdio_bus->priv = priv;
+	mdio_bus->phy_mask = ~(1 << mac->phy_addr);
+	mdio_bus->name = "hibmcge mii bus";
+	mac->mdio_bus = mdio_bus;
+
+	mdio_bus->read = hbg_mdio_read22;
+	mdio_bus->write = hbg_mdio_write22;
+	snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%s", "mii", dev_name(dev));
+
+	ret = devm_mdiobus_register(dev, mdio_bus);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to register MDIO bus\n");
+
+	phydev = mdiobus_get_phy(mdio_bus, mac->phy_addr);
+	if (!phydev)
+		return dev_err_probe(dev, -ENODEV,
+				     "failed to get phy device\n");
+
+	mac->phydev = phydev;
+	hbg_mdio_init_hw(priv);
+	return hbg_phy_connect(priv);
+}
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.h
new file mode 100644
index 000000000000..febd02a309c7
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.h
@@ -0,0 +1,12 @@
+/* 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);
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
new file mode 100644
index 000000000000..57d81c6d7633
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_REG_H
+#define __HBG_REG_H
+
+/* DEV SPEC */
+#define HBG_REG_SPEC_VALID_ADDR			0x0000
+#define HBG_REG_EVENT_REQ_ADDR			0x0004
+#define HBG_REG_MAC_ID_ADDR			0x0008
+#define HBG_REG_PHY_ID_ADDR			0x000C
+#define HBG_REG_MAC_ADDR_ADDR			0x0010
+#define HBG_REG_MDIO_FREQ_ADDR			0x0024
+#define HBG_REG_MAX_MTU_ADDR			0x0028
+#define HBG_REG_MIN_MTU_ADDR			0x002C
+#define HBG_REG_TX_FIFO_NUM_ADDR		0x0030
+#define HBG_REG_RX_FIFO_NUM_ADDR		0x0034
+#define HBG_REG_VLAN_LAYERS_ADDR		0x0038
+
+/* MDIO */
+#define HBG_REG_MDIO_BASE			0x8000
+#define HBG_REG_MDIO_COMMAND_ADDR		(HBG_REG_MDIO_BASE + 0x0000)
+#define HBG_REG_MDIO_COMMAND_CLK_SEL_EXP_B	BIT(17)
+#define HBG_REG_MDIO_COMMAND_AUTO_SCAN_B	BIT(16)
+#define HBG_REG_MDIO_COMMAND_CLK_SEL_B		BIT(15)
+#define HBG_REG_MDIO_COMMAND_START_B		BIT(14)
+#define HBG_REG_MDIO_COMMAND_ST_M		GENMASK(13, 12)
+#define HBG_REG_MDIO_COMMAND_OP_M		GENMASK(11, 10)
+#define HBG_REG_MDIO_COMMAND_PRTAD_M		GENMASK(9, 5)
+#define HBG_REG_MDIO_COMMAND_DEVAD_M		GENMASK(4, 0)
+#define HBG_REG_MDIO_WDATA_ADDR			(HBG_REG_MDIO_BASE + 0x0008)
+#define HBG_REG_MDIO_WDATA_M			GENMASK(15, 0)
+#define HBG_REG_MDIO_RDATA_ADDR			(HBG_REG_MDIO_BASE + 0x000C)
+#define HBG_REG_MDIO_STA_ADDR			(HBG_REG_MDIO_BASE + 0x0010)
+
+/* GMAC */
+#define HBG_REG_SGMII_BASE			0x10000
+#define HBG_REG_DUPLEX_TYPE_ADDR		(HBG_REG_SGMII_BASE + 0x0008)
+#define HBG_REG_DUPLEX_B			BIT(0)
+#define HBG_REG_MAX_FRAME_SIZE_ADDR		(HBG_REG_SGMII_BASE + 0x003C)
+#define HBG_REG_PORT_MODE_ADDR			(HBG_REG_SGMII_BASE + 0x0040)
+#define HBG_REG_PORT_MODE_M			GENMASK(3, 0)
+#define HBG_REG_PORT_ENABLE_ADDR		(HBG_REG_SGMII_BASE + 0x0044)
+#define HBG_REG_PORT_ENABLE_RX_B		BIT(1)
+#define HBG_REG_PORT_ENABLE_TX_B		BIT(2)
+#define HBG_REG_TRANSMIT_CTRL_ADDR		(HBG_REG_SGMII_BASE + 0x0060)
+#define HBG_REG_TRANSMIT_CTRL_PAD_EN_B		BIT(7)
+#define HBG_REG_TRANSMIT_CTRL_CRC_ADD_B		BIT(6)
+#define HBG_REG_TRANSMIT_CTRL_AN_EN_B		BIT(5)
+#define HBG_REG_CF_CRC_STRIP_ADDR		(HBG_REG_SGMII_BASE + 0x01B0)
+#define HBG_REG_CF_CRC_STRIP_B			BIT(0)
+#define HBG_REG_MODE_CHANGE_EN_ADDR		(HBG_REG_SGMII_BASE + 0x01B4)
+#define HBG_REG_MODE_CHANGE_EN_B		BIT(0)
+#define HBG_REG_RECV_CTRL_ADDR			(HBG_REG_SGMII_BASE + 0x01E0)
+#define HBG_REG_RECV_CTRL_STRIP_PAD_EN_B	BIT(3)
+#define HBG_REG_STATION_ADDR_LOW_2_ADDR		(HBG_REG_SGMII_BASE + 0x0210)
+#define HBG_REG_STATION_ADDR_HIGH_2_ADDR	(HBG_REG_SGMII_BASE + 0x0214)
+
+/* PCU */
+#define HBG_REG_CF_INTRPT_MSK_ADDR		(HBG_REG_SGMII_BASE + 0x042C)
+#define HBG_INT_MSK_WE_ERR_B			BIT(31)
+#define HBG_INT_MSK_RBREQ_ERR_B			BIT(30)
+#define HBG_INT_MSK_MAC_FIFO_ERR_B		BIT(29)
+#define HBG_INT_MSK_RX_AHB_ERR_B		BIT(28)
+#define HBG_INT_MSK_RX_DROP_B			BIT(26)
+#define HBG_INT_MSK_TX_DROP_B			BIT(25)
+#define HBG_INT_MSK_TXCFG_AVL_B			BIT(24)
+#define HBG_INT_MSK_REL_BUF_ERR_B		BIT(23)
+#define HBG_INT_MSK_RX_BUF_AVL_B		BIT(22)
+#define HBG_INT_MSK_TX_AHB_ERR_B		BIT(21)
+#define HBG_INT_MSK_SRAM_PARITY_ERR_B		BIT(20)
+#define HBG_INT_MSK_MAC_APP_TX_FIFO_ERR_B	BIT(19)
+#define HBG_INT_MSK_MAC_APP_RX_FIFO_ERR_B	BIT(18)
+#define HBG_INT_MSK_MAC_PCS_TX_FIFO_ERR_B	BIT(17)
+#define HBG_INT_MSK_MAC_PCS_RX_FIFO_ERR_B	BIT(16)
+#define HBG_INT_MSK_MAC_MII_FIFO_ERR_B		BIT(15)
+#define HBG_INT_MSK_TX_B			BIT(1) /* just used in driver */
+#define HBG_INT_MSK_RX_B			BIT(0) /* just used in driver */
+#define HBG_REG_CF_INTRPT_STAT_ADDR		(HBG_REG_SGMII_BASE + 0x0434)
+#define HBG_REG_CF_INTRPT_CLR_ADDR		(HBG_REG_SGMII_BASE + 0x0438)
+#define HBG_REG_MAX_FRAME_LEN_ADDR		(HBG_REG_SGMII_BASE + 0x0444)
+#define HBG_REG_MAX_FRAME_LEN_M			GENMASK(15, 0)
+#define HBG_REG_CF_CFF_DATA_NUM_ADDR		(HBG_REG_SGMII_BASE + 0x045C)
+#define HBG_REG_CF_CFF_DATA_NUM_ADDR_TX_M	GENMASK(8, 0)
+#define HBG_REG_CF_CFF_DATA_NUM_ADDR_RX_M	GENMASK(24, 16)
+#define HBG_REG_TX_CFF_ADDR_0_ADDR		(HBG_REG_SGMII_BASE + 0x0488)
+#define HBG_REG_TX_CFF_ADDR_1_ADDR		(HBG_REG_SGMII_BASE + 0x048C)
+#define HBG_REG_TX_CFF_ADDR_2_ADDR		(HBG_REG_SGMII_BASE + 0x0490)
+#define HBG_REG_TX_CFF_ADDR_3_ADDR		(HBG_REG_SGMII_BASE + 0x0494)
+#define HBG_REG_RX_CFF_ADDR_ADDR		(HBG_REG_SGMII_BASE + 0x04A0)
+#define HBG_REG_RX_BUF_SIZE_ADDR		(HBG_REG_SGMII_BASE + 0x04E4)
+#define HBG_REG_RX_BUF_SIZE_M			GENMASK(15, 0)
+#define HBG_REG_BUS_CTRL_ADDR			(HBG_REG_SGMII_BASE + 0x04E8)
+#define HBG_REG_BUS_CTRL_ENDIAN_M		GENMASK(2, 1)
+#define HBG_REG_RX_CTRL_ADDR			(HBG_REG_SGMII_BASE + 0x04F0)
+#define HBG_REG_RX_CTRL_RXBUF_1ST_SKIP_SIZE_M	GENMASK(31, 28)
+#define HBG_REG_RX_CTRL_TIME_INF_EN_B		BIT(23)
+#define HBG_REG_RX_CTRL_RX_ALIGN_NUM_M		GENMASK(18, 17)
+#define HBG_REG_RX_CTRL_PORT_NUM		GENMASK(16, 13)
+#define HBG_REG_RX_CTRL_RX_GET_ADDR_MODE_B	BIT(12)
+#define HBG_REG_RX_CTRL_RXBUF_1ST_SKIP_SIZE2_M	GENMASK(3, 0)
+#define HBG_REG_RX_PKT_MODE_ADDR		(HBG_REG_SGMII_BASE + 0x04F4)
+#define HBG_REG_RX_PKT_MODE_PARSE_MODE_M	GENMASK(22, 21)
+#define HBG_REG_CF_IND_TXINT_MSK_ADDR		(HBG_REG_SGMII_BASE + 0x0694)
+#define HBG_REG_IND_INTR_MASK_B			BIT(0)
+#define HBG_REG_CF_IND_TXINT_STAT_ADDR		(HBG_REG_SGMII_BASE + 0x0698)
+#define HBG_REG_CF_IND_TXINT_CLR_ADDR		(HBG_REG_SGMII_BASE + 0x069C)
+#define HBG_REG_CF_IND_RXINT_MSK_ADDR		(HBG_REG_SGMII_BASE + 0x06a0)
+#define HBG_REG_CF_IND_RXINT_STAT_ADDR		(HBG_REG_SGMII_BASE + 0x06a4)
+#define HBG_REG_CF_IND_RXINT_CLR_ADDR		(HBG_REG_SGMII_BASE + 0x06a8)
+
+enum hbg_port_mode {
+	/* 0x0 ~ 0x5 are reserved */
+	HBG_PORT_MODE_SGMII_10M = 0x6,
+	HBG_PORT_MODE_SGMII_100M = 0x7,
+	HBG_PORT_MODE_SGMII_1000M = 0x8,
+};
+
+struct hbg_tx_desc {
+	u32 word0;
+	u32 word1;
+	u32 word2; /* pkt_addr */
+	u32 word3; /* clear_addr */
+};
+
+#define HBG_TX_DESC_W0_IP_OFF_M		GENMASK(30, 26)
+#define HBG_TX_DESC_W0_l3_CS_B		BIT(2)
+#define HBG_TX_DESC_W0_WB_B		BIT(1)
+#define HBG_TX_DESC_W0_l4_CS_B		BIT(0)
+#define HBG_TX_DESC_W1_SEND_LEN_M	GENMASK(19, 4)
+
+struct hbg_rx_desc {
+	u32 word0;
+	u32 word1; /* tag */
+	u32 word2;
+	u32 word3;
+	u32 word4;
+	u32 word5;
+};
+
+#define HBG_RX_DESC_W2_PKT_LEN_M	GENMASK(31, 16)
+
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
new file mode 100644
index 000000000000..f4f256a0dfea
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#include <net/netdev_queues.h>
+#include "hbg_common.h"
+#include "hbg_irq.h"
+#include "hbg_reg.h"
+#include "hbg_txrx.h"
+
+#define netdev_get_tx_ring(netdev) \
+			(&(((struct hbg_priv *)netdev_priv(netdev))->tx_ring))
+
+#define buffer_to_dma_dir(buffer) (((buffer)->dir == HBG_DIR_RX) ? \
+				   DMA_FROM_DEVICE : DMA_TO_DEVICE)
+
+#define hbg_queue_used_num(head, tail, ring) ({ \
+	typeof(ring) _ring = (ring); \
+	((tail) + _ring->len - (head)) % _ring->len; })
+#define hbg_queue_left_num(head, tail, ring) ({ \
+	typeof(ring) _r = (ring); \
+	_r->len - hbg_queue_used_num((head), (tail), _r) - 1; })
+#define hbg_queue_is_empty(head, tail, ring) \
+	(hbg_queue_used_num((head), (tail), (ring)) == 0)
+#define hbg_queue_is_full(head, tail, ring) \
+	(hbg_queue_left_num((head), (tail), (ring)) == 0)
+#define hbg_queue_next_prt(p, ring) (((p) + 1) % (ring)->len)
+#define hbg_queue_move_next(p, ring) ({ \
+	typeof(ring) _ring = (ring); \
+	_ring->p = hbg_queue_next_prt(_ring->p, _ring); })
+
+#define HBG_TX_STOP_THRS	2
+#define HBG_TX_START_THRS	(2 * HBG_TX_STOP_THRS)
+
+static int hbg_dma_map(struct hbg_buffer *buffer)
+{
+	struct hbg_priv *priv = buffer->priv;
+
+	buffer->skb_dma = dma_map_single(&priv->pdev->dev,
+					 buffer->skb->data, buffer->skb_len,
+					 buffer_to_dma_dir(buffer));
+	if (unlikely(dma_mapping_error(&priv->pdev->dev, buffer->skb_dma)))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void hbg_dma_unmap(struct hbg_buffer *buffer)
+{
+	struct hbg_priv *priv = buffer->priv;
+
+	if (unlikely(!buffer->skb_dma))
+		return;
+
+	dma_unmap_single(&priv->pdev->dev, buffer->skb_dma, buffer->skb_len,
+			 buffer_to_dma_dir(buffer));
+	buffer->skb_dma = 0;
+}
+
+static void hbg_init_tx_desc(struct hbg_buffer *buffer,
+			     struct hbg_tx_desc *tx_desc)
+{
+	u32 ip_offset = buffer->skb->network_header - buffer->skb->mac_header;
+	u32 word0 = 0;
+
+	word0 |= FIELD_PREP(HBG_TX_DESC_W0_WB_B, HBG_STATUS_ENABLE);
+	word0 |= FIELD_PREP(HBG_TX_DESC_W0_IP_OFF_M, ip_offset);
+	if (likely(buffer->skb->ip_summed == CHECKSUM_PARTIAL)) {
+		word0 |= FIELD_PREP(HBG_TX_DESC_W0_l3_CS_B, HBG_STATUS_ENABLE);
+		word0 |= FIELD_PREP(HBG_TX_DESC_W0_l4_CS_B, HBG_STATUS_ENABLE);
+	}
+
+	tx_desc->word0 = word0;
+	tx_desc->word1 = FIELD_PREP(HBG_TX_DESC_W1_SEND_LEN_M,
+				    buffer->skb->len);
+	tx_desc->word2 = buffer->skb_dma;
+	tx_desc->word3 = buffer->state_dma;
+}
+
+netdev_tx_t hbg_net_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct hbg_ring *ring = netdev_get_tx_ring(netdev);
+	struct hbg_priv *priv = netdev_priv(netdev);
+	/* This smp_load_acquire() pairs with smp_store_release() in
+	 * hbg_napi_tx_recycle() called in tx interrupt handle process.
+	 */
+	u32 ntc = smp_load_acquire(&ring->ntc);
+	struct hbg_buffer *buffer;
+	struct hbg_tx_desc tx_desc;
+	u32 ntu = ring->ntu;
+
+	if (unlikely(!skb->len ||
+		     skb->len > hbg_spec_max_frame_len(priv, HBG_DIR_TX))) {
+		dev_kfree_skb_any(skb);
+		netdev->stats.tx_errors++;
+		return NETDEV_TX_OK;
+	}
+
+	if (!netif_subqueue_maybe_stop(netdev, 0,
+				       hbg_queue_left_num(ntc, ntu, ring),
+				       HBG_TX_STOP_THRS, HBG_TX_START_THRS))
+		return NETDEV_TX_BUSY;
+
+	buffer = &ring->queue[ntu];
+	buffer->skb = skb;
+	buffer->skb_len = skb->len;
+	if (unlikely(hbg_dma_map(buffer))) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	buffer->state = HBG_TX_STATE_START;
+	hbg_init_tx_desc(buffer, &tx_desc);
+	hbg_hw_set_tx_desc(priv, &tx_desc);
+
+	/* This smp_store_release() pairs with smp_load_acquire() in
+	 * hbg_napi_tx_recycle() called in tx interrupt handle process.
+	 */
+	smp_store_release(&ring->ntu, hbg_queue_next_prt(ntu, ring));
+	dev_sw_netstats_tx_add(netdev, 1, skb->len);
+	return NETDEV_TX_OK;
+}
+
+static void hbg_buffer_free_skb(struct hbg_buffer *buffer)
+{
+	if (unlikely(!buffer->skb))
+		return;
+
+	dev_kfree_skb_any(buffer->skb);
+	buffer->skb = NULL;
+}
+
+static int hbg_buffer_alloc_skb(struct hbg_buffer *buffer)
+{
+	u32 len = hbg_spec_max_frame_len(buffer->priv, buffer->dir);
+	struct hbg_priv *priv = buffer->priv;
+
+	buffer->skb = netdev_alloc_skb(priv->netdev, len);
+	if (unlikely(!buffer->skb))
+		return -ENOMEM;
+
+	buffer->skb_len = len;
+	memset(buffer->skb->data, 0, HBG_PACKET_HEAD_SIZE);
+	return 0;
+}
+
+static void hbg_buffer_free(struct hbg_buffer *buffer)
+{
+	hbg_dma_unmap(buffer);
+	hbg_buffer_free_skb(buffer);
+}
+
+static int hbg_napi_tx_recycle(struct napi_struct *napi, int budget)
+{
+	struct hbg_ring *ring = container_of(napi, struct hbg_ring, napi);
+	/* This smp_load_acquire() pairs with smp_store_release() in
+	 * hbg_net_start_xmit() called in xmit process.
+	 */
+	u32 ntu = smp_load_acquire(&ring->ntu);
+	struct hbg_priv *priv = ring->priv;
+	struct hbg_buffer *buffer;
+	u32 ntc = ring->ntc;
+	int packet_done = 0;
+
+	/* We need do cleanup even if budget is 0.
+	 * Per NAPI documentation budget is for Rx.
+	 * So We hardcode the amount of work Tx NAPI does to 128.
+	 */
+	budget = 128;
+	while (packet_done < budget) {
+		if (unlikely(hbg_queue_is_empty(ntc, ntu, ring)))
+			break;
+
+		/* make sure HW write desc complete */
+		dma_rmb();
+
+		buffer = &ring->queue[ntc];
+		if (buffer->state != HBG_TX_STATE_COMPLETE)
+			break;
+
+		hbg_buffer_free(buffer);
+		ntc = hbg_queue_next_prt(ntc, ring);
+		packet_done++;
+	}
+
+	/* This smp_store_release() pairs with smp_load_acquire() in
+	 * hbg_net_start_xmit() called in xmit process.
+	 */
+	smp_store_release(&ring->ntc, ntc);
+	netif_wake_queue(priv->netdev);
+
+	if (likely(packet_done < budget &&
+		   napi_complete_done(napi, packet_done)))
+		hbg_hw_irq_enable(priv, HBG_INT_MSK_TX_B, true);
+
+	return packet_done;
+}
+
+static int hbg_rx_fill_one_buffer(struct hbg_priv *priv)
+{
+	struct hbg_ring *ring = &priv->rx_ring;
+	struct hbg_buffer *buffer;
+	int ret;
+
+	if (hbg_queue_is_full(ring->ntc, ring->ntu, ring))
+		return 0;
+
+	buffer = &ring->queue[ring->ntu];
+	ret = hbg_buffer_alloc_skb(buffer);
+	if (unlikely(ret))
+		return ret;
+
+	ret = hbg_dma_map(buffer);
+	if (unlikely(ret)) {
+		hbg_buffer_free_skb(buffer);
+		return ret;
+	}
+
+	hbg_hw_fill_buffer(priv, buffer->skb_dma);
+	hbg_queue_move_next(ntu, ring);
+	return 0;
+}
+
+static bool hbg_sync_data_from_hw(struct hbg_priv *priv,
+				  struct hbg_buffer *buffer)
+{
+	struct hbg_rx_desc *rx_desc;
+
+	/* make sure HW write desc complete */
+	dma_rmb();
+
+	dma_sync_single_for_cpu(&priv->pdev->dev, buffer->skb_dma,
+				buffer->skb_len, DMA_FROM_DEVICE);
+
+	rx_desc = (struct hbg_rx_desc *)buffer->skb->data;
+	return FIELD_GET(HBG_RX_DESC_W2_PKT_LEN_M, rx_desc->word2) != 0;
+}
+
+static int hbg_napi_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct hbg_ring *ring = container_of(napi, struct hbg_ring, napi);
+	struct hbg_priv *priv = ring->priv;
+	struct hbg_rx_desc *rx_desc;
+	struct hbg_buffer *buffer;
+	u32 packet_done = 0;
+	u32 pkt_len;
+
+	while (packet_done < budget) {
+		if (unlikely(hbg_queue_is_empty(ring->ntc, ring->ntu, ring)))
+			break;
+
+		buffer = &ring->queue[ring->ntc];
+		if (unlikely(!buffer->skb))
+			goto next_buffer;
+
+		if (unlikely(!hbg_sync_data_from_hw(priv, buffer)))
+			break;
+		rx_desc = (struct hbg_rx_desc *)buffer->skb->data;
+		pkt_len = FIELD_GET(HBG_RX_DESC_W2_PKT_LEN_M, rx_desc->word2);
+
+		hbg_dma_unmap(buffer);
+
+		skb_reserve(buffer->skb, HBG_PACKET_HEAD_SIZE + NET_IP_ALIGN);
+		skb_put(buffer->skb, pkt_len);
+		buffer->skb->protocol = eth_type_trans(buffer->skb,
+						       priv->netdev);
+
+		dev_sw_netstats_rx_add(priv->netdev, pkt_len);
+		napi_gro_receive(napi, buffer->skb);
+		buffer->skb = NULL;
+
+next_buffer:
+		hbg_rx_fill_one_buffer(priv);
+		hbg_queue_move_next(ntc, ring);
+		packet_done++;
+	}
+
+	if (likely(packet_done < budget &&
+		   napi_complete_done(napi, packet_done)))
+		hbg_hw_irq_enable(priv, HBG_INT_MSK_RX_B, true);
+
+	return packet_done;
+}
+
+static void hbg_ring_uninit(struct hbg_ring *ring)
+{
+	struct hbg_buffer *buffer;
+	u32 i;
+
+	if (!ring->queue)
+		return;
+
+	napi_disable(&ring->napi);
+	netif_napi_del(&ring->napi);
+
+	for (i = 0; i < ring->len; i++) {
+		buffer = &ring->queue[i];
+		hbg_buffer_free(buffer);
+		buffer->ring = NULL;
+		buffer->priv = NULL;
+	}
+
+	dma_free_coherent(&ring->priv->pdev->dev,
+			  ring->len * sizeof(*ring->queue),
+			  ring->queue, ring->queue_dma);
+	ring->queue = NULL;
+	ring->queue_dma = 0;
+	ring->len = 0;
+	ring->priv = NULL;
+}
+
+static int hbg_ring_init(struct hbg_priv *priv, struct hbg_ring *ring,
+			 int (*napi_poll)(struct napi_struct *, int),
+			 enum hbg_dir dir)
+{
+	struct hbg_buffer *buffer;
+	u32 i, len;
+
+	len = hbg_get_spec_fifo_max_num(priv, dir) + 1;
+	ring->queue = dma_alloc_coherent(&priv->pdev->dev,
+					 len * sizeof(*ring->queue),
+					 &ring->queue_dma, GFP_KERNEL);
+	if (!ring->queue)
+		return -ENOMEM;
+
+	for (i = 0; i < len; i++) {
+		buffer = &ring->queue[i];
+		buffer->skb_len = 0;
+		buffer->dir = dir;
+		buffer->ring = ring;
+		buffer->priv = priv;
+		buffer->state_dma = ring->queue_dma + (i * sizeof(*buffer));
+	}
+
+	ring->dir = dir;
+	ring->priv = priv;
+	ring->ntc = 0;
+	ring->ntu = 0;
+	ring->len = len;
+
+	if (dir == HBG_DIR_TX)
+		netif_napi_add_tx(priv->netdev, &ring->napi, napi_poll);
+	else
+		netif_napi_add(priv->netdev, &ring->napi, napi_poll);
+
+	napi_enable(&ring->napi);
+	return 0;
+}
+
+static int hbg_tx_ring_init(struct hbg_priv *priv)
+{
+	struct hbg_ring *tx_ring = &priv->tx_ring;
+
+	if (!tx_ring->tout_log_buf)
+		tx_ring->tout_log_buf = devm_kmalloc(&priv->pdev->dev,
+						     HBG_TX_TIMEOUT_BUF_LEN,
+						     GFP_KERNEL);
+
+	if (!tx_ring->tout_log_buf)
+		return -ENOMEM;
+
+	return hbg_ring_init(priv, tx_ring, hbg_napi_tx_recycle, HBG_DIR_TX);
+}
+
+static int hbg_rx_ring_init(struct hbg_priv *priv)
+{
+	int ret;
+	u32 i;
+
+	ret = hbg_ring_init(priv, &priv->rx_ring, hbg_napi_rx_poll, HBG_DIR_RX);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < priv->rx_ring.len - 1; i++) {
+		ret = hbg_rx_fill_one_buffer(priv);
+		if (ret) {
+			hbg_ring_uninit(&priv->rx_ring);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+int hbg_txrx_init(struct hbg_priv *priv)
+{
+	int ret;
+
+	ret = hbg_tx_ring_init(priv);
+	if (ret) {
+		dev_err(&priv->pdev->dev,
+			"failed to init tx ring, ret = %d\n", ret);
+		return ret;
+	}
+
+	ret = hbg_rx_ring_init(priv);
+	if (ret) {
+		dev_err(&priv->pdev->dev,
+			"failed to init rx ring, ret = %d\n", ret);
+		hbg_ring_uninit(&priv->tx_ring);
+	}
+
+	return ret;
+}
+
+void hbg_txrx_uninit(struct hbg_priv *priv)
+{
+	hbg_ring_uninit(&priv->tx_ring);
+	hbg_ring_uninit(&priv->rx_ring);
+}
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.h
new file mode 100644
index 000000000000..2883a5899ae2
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2024 Hisilicon Limited. */
+
+#ifndef __HBG_TXRX_H
+#define __HBG_TXRX_H
+
+#include <linux/etherdevice.h>
+#include "hbg_hw.h"
+
+static inline u32 hbg_spec_max_frame_len(struct hbg_priv *priv,
+					 enum hbg_dir dir)
+{
+	return (dir == HBG_DIR_TX) ? priv->dev_specs.max_frame_len :
+		priv->dev_specs.rx_buf_size;
+}
+
+static inline u32 hbg_get_spec_fifo_max_num(struct hbg_priv *priv,
+					    enum hbg_dir dir)
+{
+	return (dir == HBG_DIR_TX) ? priv->dev_specs.tx_fifo_num :
+		priv->dev_specs.rx_fifo_num;
+}
+
+static inline bool hbg_fifo_is_full(struct hbg_priv *priv, enum hbg_dir dir)
+{
+	return hbg_hw_get_fifo_used_num(priv, dir) >=
+	       hbg_get_spec_fifo_max_num(priv, dir);
+}
+
+static inline u32 hbg_get_queue_used_num(struct hbg_ring *ring)
+{
+	return (ring->ntu + ring->len - ring->ntc) % ring->len;
+}
+
+netdev_tx_t hbg_net_start_xmit(struct sk_buff *skb, struct net_device *netdev);
+int hbg_txrx_init(struct hbg_priv *priv);
+void hbg_txrx_uninit(struct hbg_priv *priv);
+
+#endif