diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
index 14aea265b71e..f63a5be936ed 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
@@ -14,6 +14,13 @@
 #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
+
+enum hbg_tx_state {
+	HBG_TX_STATE_COMPLETE = 0, /* clear state, must fix to 0 */
+	HBG_TX_STATE_START,
+};
 
 enum hbg_dir {
 	HBG_DIR_TX = 1 << 0,
@@ -33,6 +40,41 @@ enum hbg_nic_state {
 #define hbg_nic_is_open(priv) test_bit(HBG_NIC_STATE_OPEN, &(priv)->state)
 #define hbg_nic_is_inited(priv) test_bit(HBG_NIC_STATE_INITED, &(priv)->state)
 
+struct hbg_priv;
+struct hbg_ring;
+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 */
@@ -89,6 +131,7 @@ struct hbg_priv {
 	unsigned long state;
 	struct hbg_mac mac;
 	struct hbg_vector vectors;
+	struct hbg_ring tx_ring;
 };
 
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
index 89a7b8aafbf7..9a8f18cece1a 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
@@ -66,6 +66,7 @@ int hbg_hw_dev_specs_init(struct hbg_priv *priv)
 	if (!is_valid_ether_addr((u8 *)dev_specs->mac_addr.sa_data))
 		return -EADDRNOTAVAIL;
 
+	dev_specs->max_frame_len = HBG_PCU_CACHE_LINE_SIZE + dev_specs->max_mtu;
 	return 0;
 }
 
@@ -109,6 +110,23 @@ void hbg_hw_mac_enable(struct hbg_priv *priv, u32 enable)
 			    HBG_REG_PORT_ENABLE_RX_B, enable);
 }
 
+u32 hbg_hw_get_fifo_used_num(struct hbg_priv *priv, enum hbg_dir dir)
+{
+	if (hbg_dir_has_tx(dir))
+		return hbg_reg_read_field(priv, HBG_REG_CF_CFF_DATA_NUM_ADDR,
+					  HBG_REG_CF_CFF_DATA_NUM_ADDR_TX_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->pkt_addr);
+	hbg_reg_write(priv, HBG_REG_TX_CFF_ADDR_3_ADDR, tx_desc->clear_addr);
+}
+
 void hbg_hw_get_err_intr_status(struct hbg_priv *priv, struct hbg_intr_status *status)
 {
 	status->bits = hbg_reg_read(priv, HBG_REG_CF_INTRPT_STAT_ADDR);
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
index d481aa2d605c..012845dd95bb 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h
@@ -41,5 +41,7 @@ void hbg_hw_get_txrx_intr_status(struct hbg_priv *priv, struct hbg_intr_status *
 int hbg_hw_adjust_link(struct hbg_priv *priv, u32 speed, u32 duplex);
 void hbg_hw_set_mtu(struct hbg_priv *priv, u16 mtu);
 int hbg_hw_init(struct hbg_priv *pri);
+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);
 
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
index 0c28e9c3fbc3..134c59a7986c 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_irq.c
@@ -13,8 +13,14 @@ static void hbg_irq_handle_err(struct hbg_priv *priv,
 			"receive abnormal 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 struct hbg_irq_info hbg_irqs[] = {
-	{ "TX", HBG_IRQ_TX, false, false, 0, NULL },
+	{ "TX", HBG_IRQ_TX, false, false, 0, hbg_irq_handle_tx },
 	{ "RX", HBG_IRQ_RX, false, false, 0, NULL },
 	{ "RX_BUF_AVL", HBG_IRQ_BUF_AVL, true, false, 0, hbg_irq_handle_err },
 	{ "MAC_MII_FIFO_ERR", HBG_IRQ_MAC_MII_FIFO_ERR,
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
index d330ec1af711..e08e3a477cea 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
@@ -9,6 +9,7 @@
 #include "hbg_hw.h"
 #include "hbg_irq.h"
 #include "hbg_mdio.h"
+#include "hbg_txrx.h"
 
 static const struct regmap_config hbg_regmap_config = {
 	.reg_bits	= 32,
@@ -35,6 +36,7 @@ static int hbg_net_open(struct net_device *dev)
 		return 0;
 
 	netif_carrier_off(dev);
+	napi_enable(&priv->tx_ring.napi);
 	hbg_all_irq_enable(priv, true);
 	hbg_hw_mac_enable(priv, HBG_STATUS_ENABLE);
 	netif_start_queue(dev);
@@ -56,6 +58,7 @@ static int hbg_net_stop(struct net_device *dev)
 	netif_stop_queue(dev);
 	hbg_hw_mac_enable(priv, HBG_STATUS_DISABLE);
 	hbg_all_irq_enable(priv, false);
+	napi_disable(&priv->tx_ring.napi);
 
 	return 0;
 }
@@ -92,12 +95,33 @@ static int hbg_net_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
+static void hbg_net_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	struct hbg_priv *priv = netdev_priv(dev);
+	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_irq_is_enabled(priv, HBG_IRQ_TX));
+
+	netdev_info(dev, "%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)
@@ -115,6 +139,14 @@ static int hbg_init(struct hbg_priv *priv)
 	if (ret)
 		return ret;
 
+	ret = hbg_txrx_init(priv);
+	if (ret)
+		return ret;
+
+	ret = devm_add_action_or_reset(&priv->pdev->dev, hbg_txrx_uninit, priv);
+	if (ret)
+		return ret;
+
 	ret = hbg_irq_init(priv);
 	if (ret)
 		return ret;
@@ -177,6 +209,7 @@ static int hbg_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		return ret;
 
+	netdev->watchdog_timeo = 5 * HZ;
 	netdev->max_mtu = priv->dev_specs.max_mtu;
 	netdev->min_mtu = priv->dev_specs.min_mtu;
 	hbg_net_change_mtu(netdev, HBG_DEFAULT_MTU_SIZE);
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
index ffbb0998a221..0feb3cd24937 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h
@@ -52,6 +52,12 @@
 #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_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_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)
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg_union.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg_union.h
index 406eac051c10..6a2a585451d7 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg_union.h
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_reg_union.h
@@ -169,4 +169,33 @@ struct hbg_intr_mask {
 	};
 };
 
+struct hbg_tx_desc {
+	union {
+		struct {
+			u32 l4_cs : 1;
+			u32 wb : 1;
+			u32 l3_cs : 1;
+			u32 rsv0 : 16;
+			u32 ds : 6;
+			u32 sd : 1;
+			u32 ipoff : 5;
+			u32 rsv1 : 1;
+		};
+		u32 word0;
+	};
+	union {
+		struct {
+			u32 rsv2 : 4;
+			u32 len : 16;
+			u32 back : 6;
+			u32 fm : 1;
+			u32 l2cache : 1;
+			u32 rsv3 : 4;
+		};
+		u32 word1;
+	};
+	u32 pkt_addr; /* word2 */
+	u32 clear_addr; /* word3 */
+};
+
 #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..bd16f5df3b5f
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2024 Hisilicon Limited.
+
+#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_is_full(head, tail, ring) ((head) == ((tail) + 1) % (ring)->len)
+#define hbg_queue_is_empty(head, tail) ((head) == (tail))
+#define hbg_queue_next_prt(p, ring) (((p) + 1) % (ring)->len)
+
+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)
+{
+	tx_desc->word0 = 0;
+	tx_desc->word1 = 0;
+
+	tx_desc->wb = HBG_STATUS_ENABLE;
+	tx_desc->len = buffer->skb->len;
+	tx_desc->clear_addr = buffer->state_dma;
+	tx_desc->pkt_addr = buffer->skb_dma;
+	tx_desc->ipoff = buffer->skb->network_header - buffer->skb->mac_header;
+
+	if (likely(buffer->skb->ip_summed == CHECKSUM_PARTIAL)) {
+		tx_desc->l3_cs = 1;
+		tx_desc->l4_cs = 1;
+	}
+}
+
+netdev_tx_t hbg_net_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
+{
+	struct hbg_ring *ring = netdev_get_tx_ring(net_dev);
+	struct hbg_priv *priv = netdev_priv(net_dev);
+	/* This smp_load_acquire() pairs with smp_store_release() in
+	 * hbg_tx_buffer_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(!hbg_nic_is_open(priv))) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (unlikely(!skb->len || skb->len > hbg_spec_max_frame_len(priv, HBG_DIR_TX))) {
+		dev_kfree_skb_any(skb);
+		net_dev->stats.tx_errors++;
+		return NETDEV_TX_OK;
+	}
+
+	if (unlikely(hbg_queue_is_full(ntc, ntu, ring) ||
+		     hbg_fifo_is_full(ring->priv, ring->dir))) {
+		netif_stop_queue(net_dev);
+		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_tx_buffer_recycle() called in tx interrupt handle process.
+	 */
+	smp_store_release(&ring->ntu, hbg_queue_next_prt(ntu, ring));
+	net_dev->stats.tx_bytes += skb->len;
+	net_dev->stats.tx_packets++;
+	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 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);
+	struct hbg_priv *priv = ring->priv;
+	/* This smp_load_acquire() pairs with smp_store_release() in
+	 * hbg_start_xmit() called in xmit process.
+	 */
+	u32 ntu = smp_load_acquire(&ring->ntu);
+	struct hbg_buffer *buffer;
+	u32 ntc = ring->ntc;
+	int packet_done = 0;
+
+	while (packet_done < budget) {
+		if (unlikely(hbg_queue_is_empty(ntc, ntu)))
+			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_start_xmit() called in xmit process.
+	 */
+	smp_store_release(&ring->ntc, ntc);
+	netif_wake_queue(priv->netdev);
+
+	if (likely(napi_complete_done(napi, packet_done)))
+		hbg_irq_enable(priv, HBG_IRQ_TX, true);
+
+	return packet_done;
+}
+
+static void hbg_ring_uninit(struct hbg_ring *ring)
+{
+	struct hbg_buffer *buffer;
+	u32 i;
+
+	if (!ring->queue)
+		return;
+
+	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,
+			 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;
+	return 0;
+}
+
+static int hbg_tx_ring_init(struct hbg_priv *priv)
+{
+	struct hbg_ring *tx_ring = &priv->tx_ring;
+	int ret;
+
+	if (!tx_ring->tout_log_buf)
+		tx_ring->tout_log_buf = devm_kzalloc(&priv->pdev->dev,
+						     HBG_TX_TIMEOUT_BUF_LEN,
+						     GFP_KERNEL);
+
+	if (!tx_ring->tout_log_buf)
+		return -ENOMEM;
+
+	ret = hbg_ring_init(priv, tx_ring, HBG_DIR_TX);
+	if (ret)
+		return ret;
+
+	netif_napi_add_tx(priv->netdev, &tx_ring->napi, hbg_napi_tx_recycle);
+	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;
+}
+
+void hbg_txrx_uninit(void *data)
+{
+	struct hbg_priv *priv = data;
+
+	hbg_ring_uninit(&priv->tx_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..fa00a74a451a
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.h
@@ -0,0 +1,37 @@
+/* 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 *net_dev);
+int hbg_txrx_init(struct hbg_priv *priv);
+void hbg_txrx_uninit(void *data);
+
+#endif
