[net-next,1/9] net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
new file mode 100644
index 0000000..d0e4f22
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
@@ -0,0 +1,2851 @@ 
+/*
+ * Copyright (c) 2016~2017 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <net/gre.h>
+#include <linux/interrupt.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/skbuff.h>
+#include <linux/sctp.h>
+#include <net/vxlan.h>
+
+#include "hnae3.h"
+#include "hns3_enet.h"
+
+const char hns3_driver_name[] = "hns3";
+static const char hns3_driver_string[] =
+			"Hisilicon Ethernet Network Driver for Hi162x Family";
+static const char hns3_copyright[] = "Copyright (c) 2017 Huawei Corporation.";
+
+/* hns3_pci_tbl - PCI Device ID Table
+ *
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id hns3_pci_tbl[] = {
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0},
+	/* required last entry */
+	{0, }
+};
+MODULE_DEVICE_TABLE(pci, hns3_pci_tbl);
+
+/* use only for netconsole to poll with the device without interrupt */
+#ifdef CONFIG_NET_POLL_CONTROLLER
+void hns3_nic_poll_controller(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	unsigned long flag;
+	int i;
+
+	local_irq_save(flag);
+	for (i = 0; i < h->kinfo.num_tqp_vectors; i++)
+		napi_schedule(&h->kinfo.tqp_vectors[i].napi);
+	local_irq_restore(flag);
+}
+#endif
+
+static irqreturn_t hns3_irq_handle(int irq, void *dev)
+{
+	struct hns3_enet_tqp_vector *tqp_vector = dev;
+
+	napi_schedule(&tqp_vector->napi);
+
+	return IRQ_HANDLED;
+}
+
+static int hns3_nic_init_irq(struct hns3_nic_priv *priv)
+{
+	struct pci_dev *pdev = priv->ae_handle->pdev;
+	struct hns3_enet_tqp_vector *tqp_vectors;
+	int txrx_int_idx = 0;
+	int rx_int_idx = 0;
+	int tx_int_idx = 0;
+	int ret;
+	int i;
+
+	for (i = 0; i < priv->vector_num; i++) {
+		tqp_vectors = &priv->tqp_vector[i];
+
+		if (tqp_vectors->irq_init_flag == HNS3_VEVTOR_INITED)
+			continue;
+
+		if (tqp_vectors->tx_group.ring && tqp_vectors->rx_group.ring) {
+			snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1,
+				 "%s-%s-%d", priv->netdev->name, "TxRx",
+				 txrx_int_idx++);
+			txrx_int_idx++;
+		} else if (tqp_vectors->rx_group.ring) {
+			snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1,
+				 "%s-%s-%d", priv->netdev->name, "Rx",
+				 rx_int_idx++);
+		} else if (tqp_vectors->tx_group.ring) {
+			snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1,
+				 "%s-%s-%d", priv->netdev->name, "Tx",
+				 tx_int_idx++);
+		} else {
+			/* Skip this unused q_vector */
+			continue;
+		}
+
+		tqp_vectors->name[HNAE3_INT_NAME_LEN - 1] = '\0';
+
+		ret = devm_request_irq(&pdev->dev, tqp_vectors->vector_irq,
+				       hns3_irq_handle, 0, tqp_vectors->name,
+				       tqp_vectors);
+		if (ret) {
+			netdev_err(priv->netdev, "request irq(%d) fail\n",
+				   tqp_vectors->vector_irq);
+			return ret;
+		}
+		disable_irq(tqp_vectors->vector_irq);
+
+		tqp_vectors->irq_init_flag = HNS3_VEVTOR_INITED;
+	}
+
+	return 0;
+}
+
+static void hns3_mask_vector_irq(struct hns3_enet_tqp_vector *tqp_vector,
+				 u32 mask_en)
+{
+	writel(mask_en, tqp_vector->mask_addr);
+}
+
+static void hns3_vector_enable(struct hns3_enet_tqp_vector *tqp_vector)
+{
+	napi_enable(&tqp_vector->napi);
+	enable_irq(tqp_vector->vector_irq);
+
+	/* Enable vector */
+	hns3_mask_vector_irq(tqp_vector, 1);
+}
+
+static void hns3_vector_disable(struct hns3_enet_tqp_vector *tqp_vector)
+{
+	/* Disable vector */
+	hns3_mask_vector_irq(tqp_vector, 0);
+
+	disable_irq(tqp_vector->vector_irq);
+	napi_disable(&tqp_vector->napi);
+}
+
+static void hns3_set_vector_gl(struct hns3_enet_tqp_vector *tqp_vector,
+			       u32 gl_value)
+{
+	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET);
+	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET);
+	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL2_OFFSET);
+}
+
+static void hns3_set_vector_rl(struct hns3_enet_tqp_vector *tqp_vector,
+			       u32 rl_value)
+{
+	writel(rl_value, tqp_vector->mask_addr + HNS3_VECTOR_RL_OFFSET);
+}
+
+static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector)
+{
+	/* Default :enable interrupt coalesce */
+	tqp_vector->rx_group.int_gl = HNS3_INT_GL_50K;
+	tqp_vector->tx_group.int_gl = HNS3_INT_GL_50K;
+	hns3_set_vector_gl(tqp_vector, HNS3_INT_GL_50K);
+	hns3_set_vector_rl(tqp_vector, 0);
+	tqp_vector->rx_group.flow_level = HNS3_FLOW_LOW;
+	tqp_vector->tx_group.flow_level = HNS3_FLOW_LOW;
+}
+
+static int hns3_nic_net_up(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int i, j;
+	int ret;
+
+	ret = hns3_nic_init_irq(priv);
+	if (ret != 0) {
+		netdev_err(ndev, "hns init irq failed! ret=%d\n", ret);
+		return ret;
+	}
+
+	for (i = 0; i < priv->vector_num; i++)
+		hns3_vector_enable(&priv->tqp_vector[i]);
+
+	ret = h->ae_algo->ops->start ? h->ae_algo->ops->start(h) : 0;
+	if (ret)
+		goto out_start_err;
+
+	return 0;
+
+out_start_err:
+	netif_stop_queue(ndev);
+
+	for (j = i - 1; j >= 0; j--)
+		hns3_vector_disable(&priv->tqp_vector[j]);
+
+	return ret;
+}
+
+static int hns3_nic_net_open(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int ret;
+
+	netif_carrier_off(ndev);
+
+	ret = netif_set_real_num_tx_queues(ndev, h->kinfo.num_tqps);
+	if (ret < 0) {
+		netdev_err(ndev, "netif_set_real_num_tx_queues fail, ret=%d!\n",
+			   ret);
+		return ret;
+	}
+
+	ret = netif_set_real_num_rx_queues(ndev, h->kinfo.num_tqps);
+	if (ret < 0) {
+		netdev_err(ndev,
+			   "netif_set_real_num_rx_queues fail, ret=%d!\n", ret);
+		return ret;
+	}
+
+	ret = hns3_nic_net_up(ndev);
+	if (ret) {
+		netdev_err(ndev,
+			   "hns net up fail, ret=%d!\n", ret);
+		return ret;
+	}
+
+	netif_carrier_on(ndev);
+	netif_tx_wake_all_queues(ndev);
+
+	return 0;
+}
+
+static void hns3_nic_net_down(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_ae_ops *ops;
+	int i;
+
+	netif_tx_stop_all_queues(ndev);
+	netif_carrier_off(ndev);
+	netif_tx_disable(ndev);
+
+	ops = priv->ae_handle->ae_algo->ops;
+
+	if (ops->stop)
+		ops->stop(priv->ae_handle);
+
+	netif_tx_stop_all_queues(ndev);
+
+	for (i = 0; i < priv->vector_num; i++)
+		hns3_vector_disable(&priv->tqp_vector[i]);
+}
+
+static int hns3_nic_net_stop(struct net_device *ndev)
+{
+	hns3_nic_net_down(ndev);
+
+	return 0;
+}
+
+void hns3_set_multicast_list(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct netdev_hw_addr *ha = NULL;
+
+	if (!h)	{
+		netdev_err(ndev, "hnae handle is null\n");
+		return;
+	}
+
+	if (h->ae_algo->ops->set_mc_addr) {
+		netdev_for_each_mc_addr(ha, ndev)
+			if (h->ae_algo->ops->set_mc_addr(h, ha->addr))
+				netdev_err(ndev, "set multicast fail\n");
+	}
+}
+
+static int hns3_nic_uc_sync(struct net_device *netdev,
+			    const unsigned char *addr)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo->ops->add_uc_addr)
+		return h->ae_algo->ops->add_uc_addr(h, addr);
+
+	return 0;
+}
+
+static int hns3_nic_uc_unsync(struct net_device *netdev,
+			      const unsigned char *addr)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo->ops->rm_uc_addr)
+		return h->ae_algo->ops->rm_uc_addr(h, addr);
+
+	return 0;
+}
+
+static int hns3_nic_mc_sync(struct net_device *netdev,
+			    const unsigned char *addr)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo->ops->add_uc_addr)
+		return h->ae_algo->ops->add_mc_addr(h, addr);
+
+	return 0;
+}
+
+static int hns3_nic_mc_unsync(struct net_device *netdev,
+			      const unsigned char *addr)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo->ops->rm_uc_addr)
+		return h->ae_algo->ops->rm_mc_addr(h, addr);
+
+	return 0;
+}
+
+void hns3_nic_set_rx_mode(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo->ops->set_promisc_mode) {
+		if (ndev->flags & IFF_PROMISC)
+			h->ae_algo->ops->set_promisc_mode(h, 1);
+		else
+			h->ae_algo->ops->set_promisc_mode(h, 0);
+	}
+	if (__dev_uc_sync(ndev, hns3_nic_uc_sync, hns3_nic_uc_unsync))
+		netdev_err(ndev, "sync uc address fail\n");
+	if (ndev->flags & IFF_MULTICAST)
+		if (__dev_mc_sync(ndev, hns3_nic_mc_sync, hns3_nic_mc_unsync))
+			netdev_err(ndev, "sync mc address fail\n");
+}
+
+static int hns3_set_tso(struct sk_buff *skb, u32 *paylen,
+			u16 *mss, u32 *type_cs_vlan_tso)
+{
+	union {
+		struct iphdr *v4;
+		struct ipv6hdr *v6;
+		unsigned char *hdr;
+	} l3;
+	union {
+		struct tcphdr *tcp;
+		struct udphdr *udp;
+		unsigned char *hdr;
+	} l4;
+	u32 l4_offset, hdr_len;
+	u32 l4_paylen;
+	int ret;
+
+	if (skb_is_gso(skb)) {
+		ret = skb_cow_head(skb, 0);
+		if (ret)
+			return ret;
+
+		l3.hdr = skb_network_header(skb);
+		l4.hdr = skb_transport_header(skb);
+
+		/* Software should clear the IPv4's checksum field when tso is
+		 * needed.
+		 */
+		if (l3.v4->version == 4)
+			l3.v4->check = 0;
+
+		/* tunnel packet.*/
+		if (skb_shinfo(skb)->gso_type & (SKB_GSO_GRE |
+						 SKB_GSO_GRE_CSUM |
+						 SKB_GSO_UDP_TUNNEL |
+						 SKB_GSO_UDP_TUNNEL_CSUM)) {
+			if ((!(skb_shinfo(skb)->gso_type &
+			    SKB_GSO_PARTIAL)) &&
+			    (skb_shinfo(skb)->gso_type &
+			    SKB_GSO_UDP_TUNNEL_CSUM)) {
+				/* Software should clear the udp's checksum
+				 * field when tso is needed.
+				 */
+				l4.udp->check = 0;
+			}
+			/* reset l3&l4 pointers from outer to inner headers */
+			l3.hdr = skb_inner_network_header(skb);
+			l4.hdr = skb_inner_transport_header(skb);
+
+			/* Software should clear the IPv4's checksum field when
+			 * tso is needed.
+			 */
+			if (l3.v4->version == 4)
+				l3.v4->check = 0;
+		}
+
+		/* normal or tunnel packet*/
+		l4_offset = l4.hdr - skb->data;
+		hdr_len = (l4.tcp->doff * 4) + l4_offset;
+
+		/* remove payload length from inner pseudo checksum when tso*/
+		l4_paylen = skb->len - l4_offset;
+		csum_replace_by_diff(&l4.tcp->check,
+				     (__force __wsum)htonl(l4_paylen));
+
+		/* find the txbd field values */
+		*paylen = skb->len - hdr_len;
+		hnae_set_bit(*type_cs_vlan_tso,
+			     HNS3_TXD_TSO_B, 1);
+
+		/* get MSS for TSO */
+		*mss = skb_shinfo(skb)->gso_size;
+
+		return 0;
+	}
+
+	return 0;
+}
+
+static void hns3_get_l4_protocol(struct sk_buff *skb, u8 *ol4_proto,
+				 u8 *il4_proto)
+{
+	union {
+		struct iphdr *v4;
+		struct ipv6hdr *v6;
+		unsigned char *hdr;
+	} l3;
+	unsigned char *l4_hdr;
+	unsigned char *exthdr;
+	u8 l4_proto_tmp;
+	__be16 frag_off;
+
+	/* find outer header point */
+	l3.hdr = skb_network_header(skb);
+	l4_hdr = skb_inner_transport_header(skb);
+
+	if (skb->protocol == htons(ETH_P_IPV6)) {
+		exthdr = l3.hdr + sizeof(*l3.v6);
+		l4_proto_tmp = l3.v6->nexthdr;
+		if (l4_hdr != exthdr)
+			ipv6_skip_exthdr(skb, exthdr - skb->data,
+					 &l4_proto_tmp, &frag_off);
+	} else if (skb->protocol == htons(ETH_P_IP)) {
+		l4_proto_tmp = l3.v4->protocol;
+	}
+
+	*ol4_proto = l4_proto_tmp;
+
+	/* tunnel packet */
+	if (!skb->encapsulation) {
+		*il4_proto = 0;
+		return;
+	}
+
+	/* find inner header point */
+	l3.hdr = skb_inner_network_header(skb);
+	l4_hdr = skb_inner_transport_header(skb);
+
+	if (l3.v6->version == 6) {
+		exthdr = l3.hdr + sizeof(*l3.v6);
+		l4_proto_tmp = l3.v6->nexthdr;
+		if (l4_hdr != exthdr)
+			ipv6_skip_exthdr(skb, exthdr - skb->data,
+					 &l4_proto_tmp, &frag_off);
+	} else if (l3.v4->version == 4) {
+		l4_proto_tmp = l3.v4->protocol;
+	}
+
+	*il4_proto = l4_proto_tmp;
+}
+
+static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto,
+				u8 il4_proto, u32 *type_cs_vlan_tso,
+				u32 *ol_type_vlan_len_msec)
+{
+	union {
+		struct iphdr *v4;
+		struct ipv6hdr *v6;
+		unsigned char *hdr;
+	} l3;
+	union {
+		struct tcphdr *tcp;
+		struct udphdr *udp;
+		struct gre_base_hdr *gre;
+		unsigned char *hdr;
+	} l4;
+	unsigned char *l2_hdr;
+	u8 l4_proto = ol4_proto;
+	u32 ol2_len;
+	u32 ol3_len;
+	u32 ol4_len;
+	u32 l2_len;
+	u32 l3_len;
+
+	l3.hdr = skb_network_header(skb);
+	l4.hdr = skb_transport_header(skb);
+
+	/* compute L2 header size for normal packet, defined in 2 Bytes */
+	l2_len = l3.hdr - skb->data;
+	hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M,
+		       HNS3_TXD_L2LEN_S, l2_len >> 1);
+
+	/* tunnel packet*/
+	if (skb->encapsulation) {
+		/* compute OL2 header size, defined in 2 Bytes */
+		ol2_len = l2_len;
+		hnae_set_field(*ol_type_vlan_len_msec,
+			       HNS3_TXD_L2LEN_M,
+			       HNS3_TXD_L2LEN_S, ol2_len >> 1);
+
+		/* compute OL3 header size, defined in 4 Bytes */
+		ol3_len = l4.hdr - l3.hdr;
+		hnae_set_field(*ol_type_vlan_len_msec, HNS3_TXD_L3LEN_M,
+			       HNS3_TXD_L3LEN_S, ol3_len >> 2);
+
+		/* MAC in UDP, MAC in GRE (0x6558)*/
+		if ((ol4_proto == IPPROTO_UDP) || (ol4_proto == IPPROTO_GRE)) {
+			/* switch MAC header ptr from outer to inner header.*/
+			l2_hdr = skb_inner_mac_header(skb);
+
+			/* compute OL4 header size, defined in 4 Bytes. */
+			ol4_len = l2_hdr - l4.hdr;
+			hnae_set_field(*ol_type_vlan_len_msec, HNS3_TXD_L4LEN_M,
+				       HNS3_TXD_L4LEN_S, ol4_len >> 2);
+
+			/* switch IP header ptr from outer to inner header */
+			l3.hdr = skb_inner_network_header(skb);
+
+			/* compute inner l2 header size, defined in 2 Bytes. */
+			l2_len = l3.hdr - l2_hdr;
+			hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M,
+				       HNS3_TXD_L2LEN_S, l2_len >> 1);
+		} else {
+			/* skb packet types not supported by hardware,
+			 * txbd len fild doesn't be filled.
+			 */
+			return;
+		}
+
+		/* switch L4 header pointer from outer to inner */
+		l4.hdr = skb_inner_transport_header(skb);
+
+		l4_proto = il4_proto;
+	}
+
+	/* compute inner(/normal) L3 header size, defined in 4 Bytes */
+	l3_len = l4.hdr - l3.hdr;
+	hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L3LEN_M,
+		       HNS3_TXD_L3LEN_S, l3_len >> 2);
+
+	/* compute inner(/normal) L4 header size, defined in 4 Bytes */
+	switch (l4_proto) {
+	case IPPROTO_TCP:
+		hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M,
+			       HNS3_TXD_L4LEN_S, l4.tcp->doff);
+		break;
+	case IPPROTO_SCTP:
+		hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M,
+			       HNS3_TXD_L4LEN_S, (sizeof(struct sctphdr) >> 2));
+		break;
+	case IPPROTO_UDP:
+		hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M,
+			       HNS3_TXD_L4LEN_S, (sizeof(struct udphdr) >> 2));
+		break;
+	default:
+		/* skb packet types not supported by hardware,
+		 * txbd len fild doesn't be filled.
+		 */
+		return;
+	}
+}
+
+static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto,
+				   u8 il4_proto, u32 *type_cs_vlan_tso,
+				   u32 *ol_type_vlan_len_msec)
+{
+	union {
+		struct iphdr *v4;
+		struct ipv6hdr *v6;
+		unsigned char *hdr;
+	} l3;
+	u32 l4_proto = ol4_proto;
+
+	l3.hdr = skb_network_header(skb);
+
+	/* define OL3 type and tunnel type(OL4).*/
+	if (skb->encapsulation) {
+		/* define outer network header type.*/
+		if (skb->protocol == htons(ETH_P_IP)) {
+			if (skb_is_gso(skb))
+				hnae_set_field(*ol_type_vlan_len_msec,
+					       HNS3_TXD_OL3T_M, HNS3_TXD_OL3T_S,
+					       HNS3_OL3T_IPV4_CSUM);
+			else
+				hnae_set_field(*ol_type_vlan_len_msec,
+					       HNS3_TXD_OL3T_M, HNS3_TXD_OL3T_S,
+					       HNS3_OL3T_IPV4_NO_CSUM);
+
+		} else if (skb->protocol == htons(ETH_P_IPV6)) {
+			hnae_set_field(*ol_type_vlan_len_msec, HNS3_TXD_OL3T_M,
+				       HNS3_TXD_OL3T_S, HNS3_OL3T_IPV6);
+		}
+
+		/* define tunnel type(OL4).*/
+		switch (l4_proto) {
+		case IPPROTO_UDP:
+			hnae_set_field(*ol_type_vlan_len_msec,
+				       HNS3_TXD_TUNTYPE_M,
+				       HNS3_TXD_TUNTYPE_S,
+				       HNS3_TUN_MAC_IN_UDP);
+			break;
+		case IPPROTO_GRE:
+			hnae_set_field(*ol_type_vlan_len_msec,
+				       HNS3_TXD_TUNTYPE_M,
+				       HNS3_TXD_TUNTYPE_S,
+				       HNS3_TUN_NVGRE);
+			break;
+		default:
+			/* drop the skb tunnel packet if hardware don't support,
+			 * because hardware can't calculate csum when TSO.
+			 */
+			if (skb_is_gso(skb))
+				return -EDOM;
+
+			/* the stack computes the IP header already,
+			 * driver calculate l4 checksum when not TSO.
+			 */
+			skb_checksum_help(skb);
+			return 0;
+		}
+
+		l3.hdr = skb_inner_network_header(skb);
+		l4_proto = il4_proto;
+	}
+
+	if (l3.v4->version == 4) {
+		hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M,
+			       HNS3_TXD_L3T_S, HNS3_L3T_IPV4);
+
+		/* the stack computes the IP header already, the only time we
+		 * need the hardware to recompute it is in the case of TSO.
+		 */
+		if (skb_is_gso(skb))
+			hnae_set_bit(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1);
+
+		hnae_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
+	} else if (l3.v6->version == 6) {
+		hnae_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M,
+			       HNS3_TXD_L3T_S, HNS3_L3T_IPV6);
+		hnae_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
+	}
+
+	switch (l4_proto) {
+	case IPPROTO_TCP:
+		hnae_set_field(*type_cs_vlan_tso,
+			       HNS3_TXD_L4T_M,
+			       HNS3_TXD_L4T_S,
+			       HNS3_L4T_TCP);
+		break;
+	case IPPROTO_UDP:
+		hnae_set_field(*type_cs_vlan_tso,
+			       HNS3_TXD_L4T_M,
+			       HNS3_TXD_L4T_S,
+			       HNS3_L4T_UDP);
+		break;
+	case IPPROTO_SCTP:
+		hnae_set_field(*type_cs_vlan_tso,
+			       HNS3_TXD_L4T_M,
+			       HNS3_TXD_L4T_S,
+			       HNS3_L4T_SCTP);
+		break;
+	default:
+		/* drop the skb tunnel packet if hardware don't support,
+		 * because hardware can't calculate csum when TSO.
+		 */
+		if (skb_is_gso(skb))
+			return -EDOM;
+
+		/* the stack computes the IP header already,
+		 * driver calculate l4 checksum when not TSO.
+		 */
+		skb_checksum_help(skb);
+		return 0;
+	}
+
+	return 0;
+}
+
+static inline void hns3_set_txbd_baseinfo(u16 *bdtp_fe_sc_vld_ra_ri,
+					  int frag_end)
+{
+	/* Config bd buffer end */
+	hnae_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_BDTYPE_M,
+		       HNS3_TXD_BDTYPE_M, 0);
+	hnae_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_FE_B, !!frag_end);
+	hnae_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_VLD_B, 1);
+	hnae_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_SC_M, HNS3_TXD_SC_S, 1);
+}
+
+static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
+			  int size, dma_addr_t dma, int frag_end,
+			  enum hns_desc_type type)
+{
+	struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use];
+	struct hns3_desc *desc = &ring->desc[ring->next_to_use];
+	u32 ol_type_vlan_len_msec = 0;
+	u16 bdtp_fe_sc_vld_ra_ri = 0;
+	u32 type_cs_vlan_tso = 0;
+	struct sk_buff *skb;
+	u32 paylen = 0;
+	u16 mss = 0;
+	__be16 protocol;
+	u8 ol4_proto;
+	u8 il4_proto;
+	int ret;
+
+	if (type == DESC_TYPE_SKB) {
+		skb = (struct sk_buff *)priv;
+		paylen = cpu_to_le16(skb->len);
+
+		if (skb->ip_summed == CHECKSUM_PARTIAL) {
+			skb_reset_mac_len(skb);
+			protocol = skb->protocol;
+
+			/* vlan packe t*/
+			if (protocol == htons(ETH_P_8021Q)) {
+				protocol = vlan_get_protocol(skb);
+				skb->protocol = protocol;
+			}
+			hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
+			hns3_set_l2l3l4_len(skb, ol4_proto, il4_proto,
+					    &type_cs_vlan_tso,
+					    &ol_type_vlan_len_msec);
+			ret = hns3_set_l3l4_type_csum(skb, ol4_proto, il4_proto,
+						      &type_cs_vlan_tso,
+						      &ol_type_vlan_len_msec);
+			if (ret)
+				return ret;
+
+			ret = hns3_set_tso(skb, &paylen, &mss,
+					   &type_cs_vlan_tso);
+			if (ret)
+				return ret;
+		}
+
+		/* Set txbd */
+		desc->tx.ol_type_vlan_len_msec =
+			cpu_to_le32(ol_type_vlan_len_msec);
+		desc->tx.type_cs_vlan_tso_len =
+			cpu_to_le32(type_cs_vlan_tso);
+		desc->tx.paylen = cpu_to_le16(paylen);
+		desc->tx.mss = cpu_to_le16(mss);
+	}
+	/* The txbd's baseinfo of DESC_TYPE_PAGE & DESC_TYPE_SKB */
+	desc_cb->priv = priv;
+	desc_cb->length = size;
+	desc_cb->dma = dma;
+	desc_cb->type = type;
+
+	hns3_set_txbd_baseinfo(&bdtp_fe_sc_vld_ra_ri, frag_end);
+
+	desc->addr = cpu_to_le64(dma);
+	desc->tx.send_size = cpu_to_le16((u16)size);
+	desc->tx.bdtp_fe_sc_vld_ra_ri = cpu_to_le16(bdtp_fe_sc_vld_ra_ri);
+
+	/* move ring pointer to next.*/
+	ring_ptr_move_fw(ring, next_to_use);
+
+	return 0;
+}
+
+static int hns3_fill_desc_tso(struct hns3_enet_ring *ring, void *priv,
+			      int size, dma_addr_t dma, int frag_end,
+			      enum hns_desc_type type)
+{
+	int frag_buf_num;
+	int sizeoflast;
+	int ret;
+	int k = 0;
+
+	frag_buf_num = (size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE;
+	sizeoflast = size % HNS3_MAX_BD_SIZE;
+	sizeoflast = sizeoflast ? sizeoflast : HNS3_MAX_BD_SIZE;
+
+	ret = hns3_fill_desc(ring, priv,
+			     (k == frag_buf_num - 1) ?
+			sizeoflast : HNS3_MAX_BD_SIZE,
+			dma + HNS3_MAX_BD_SIZE * k,
+			frag_end && (k == frag_buf_num - 1) ? 1 : 0,
+			(type == DESC_TYPE_SKB && !k) ?
+				DESC_TYPE_SKB : DESC_TYPE_PAGE);
+	if (ret)
+		return ret;
+
+	/* When the frag size is bigger than hardware, split this frag */
+	for (k = 1; k < frag_buf_num; k++) {
+		(void)hns3_fill_desc(ring, priv,
+				     (k == frag_buf_num - 1) ?
+				sizeoflast : HNS3_MAX_BD_SIZE,
+				dma + HNS3_MAX_BD_SIZE * k,
+				frag_end && (k == frag_buf_num - 1) ? 1 : 0,
+				(type == DESC_TYPE_SKB && !k) ?
+					DESC_TYPE_SKB : DESC_TYPE_PAGE);
+	}
+
+	return 0;
+}
+
+static int hns3_nic_maybe_stop_tso(struct sk_buff **out_skb, int *bnum,
+				   struct hns3_enet_ring *ring)
+{
+	struct sk_buff *skb = *out_skb;
+	struct skb_frag_struct *frag;
+	int bdnum_for_frag;
+	int frag_num;
+	int buf_num;
+	int size;
+	int i;
+
+	size = skb_headlen(skb);
+	buf_num = (size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE;
+
+	frag_num = skb_shinfo(skb)->nr_frags;
+	for (i = 0; i < frag_num; i++) {
+		frag = &skb_shinfo(skb)->frags[i];
+		size = skb_frag_size(frag);
+		bdnum_for_frag =
+			(size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE;
+		if (bdnum_for_frag > HNS3_MAX_BD_PER_FRAG)
+			return -ENOMEM;
+
+		buf_num += bdnum_for_frag;
+	}
+
+	if (buf_num > ring_space(ring))
+		return -EBUSY;
+
+	*bnum = buf_num;
+	return 0;
+}
+
+static int hns3_nic_maybe_stop_tx(struct sk_buff **out_skb, int *bnum,
+				  struct hns3_enet_ring *ring)
+{
+	struct sk_buff *skb = *out_skb;
+	int buf_num;
+
+	/* No. of segments (plus a header) */
+	buf_num = skb_shinfo(skb)->nr_frags + 1;
+
+	if (buf_num > ring_space(ring))
+		return -EBUSY;
+
+	*bnum = buf_num;
+
+	return 0;
+}
+
+int hns3_nic_net_xmit_hw(struct net_device *ndev,
+			 struct sk_buff *skb,
+			 struct hns3_nic_ring_data *ring_data)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hns3_enet_ring *ring = ring_data->ring;
+	struct device *dev = priv->dev;
+	struct netdev_queue *dev_queue;
+	struct skb_frag_struct *frag;
+	int size, next_to_use;
+	dma_addr_t dma;
+	int buf_num;
+	int seg_num;
+	int ret;
+	int i;
+
+	if (!skb || !ring)
+		return -ENOMEM;
+
+	/* Prefetch the data used later */
+	prefetch(skb->data);
+
+	switch (priv->ops.maybe_stop_tx(&skb, &buf_num, ring)) {
+	case -EBUSY:
+		ring->stats.tx_busy++;
+		goto out_net_tx_busy;
+	case -ENOMEM:
+		ring->stats.sw_err_cnt++;
+		netdev_err(ndev, "no memory to xmit!\n");
+		goto out_err_tx_ok;
+	default:
+		break;
+	}
+
+	/* No. of segments (plus a header) */
+	seg_num = skb_shinfo(skb)->nr_frags + 1;
+	next_to_use = ring->next_to_use;
+
+	/* Fill the first part */
+	size = skb_headlen(skb);
+
+	dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
+	if (dma_mapping_error(dev, dma)) {
+		netdev_err(ndev, "TX head DMA map failed\n");
+		ring->stats.sw_err_cnt++;
+		goto out_err_tx_ok;
+	}
+
+	ret = priv->ops.fill_desc(ring, skb, size, dma, seg_num == 1 ? 1 : 0,
+			   DESC_TYPE_SKB);
+	if (ret)
+		goto out_err_tx_ok;
+
+	/* Fill the fragments */
+	for (i = 1; i < seg_num; i++) {
+		frag = &skb_shinfo(skb)->frags[i - 1];
+		size = skb_frag_size(frag);
+		dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE);
+		if (dma_mapping_error(dev, dma)) {
+			netdev_err(ndev, "TX frag(%d) DMA map failed\n", i);
+			ring->stats.sw_err_cnt++;
+			goto out_map_frag_fail;
+		}
+		ret = priv->ops.fill_desc(ring, skb_frag_page(frag), size, dma,
+				    seg_num - 1 == i ? 1 : 0,
+				    DESC_TYPE_PAGE);
+
+		if (ret)
+			goto out_err_tx_ok;
+	}
+
+	/* Complete translate all packets */
+	dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index);
+	netdev_tx_sent_queue(dev_queue, skb->len);
+
+	wmb(); /* Commit all data before submit */
+
+	hnae_queue_xmit(ring->tqp, buf_num);
+
+	ring->stats.tx_pkts++;
+	ring->stats.tx_bytes += skb->len;
+
+	return NETDEV_TX_OK;
+
+out_map_frag_fail:
+
+	while (ring->next_to_use != next_to_use) {
+		if (ring->next_to_use != next_to_use)
+			dma_unmap_page(dev,
+				       ring->desc_cb[ring->next_to_use].dma,
+				       ring->desc_cb[ring->next_to_use].length,
+				       DMA_TO_DEVICE);
+		else
+			dma_unmap_single(dev,
+					 ring->desc_cb[next_to_use].dma,
+					 ring->desc_cb[next_to_use].length,
+					 DMA_TO_DEVICE);
+	}
+
+out_err_tx_ok:
+
+	dev_kfree_skb_any(skb);
+	return NETDEV_TX_OK;
+
+out_net_tx_busy:
+
+	netif_stop_subqueue(ndev, ring_data->queue_index);
+
+	smp_mb(); /* Commit all data before submit */
+	return NETDEV_TX_BUSY;
+}
+
+static netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb,
+				     struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	int ret;
+
+	ret = hns3_nic_net_xmit_hw(ndev, skb,
+				   &tx_ring_data(priv, skb->queue_mapping));
+	if (ret == NETDEV_TX_OK) {
+		netif_trans_update(ndev);
+		ndev->stats.tx_bytes += skb->len;
+		ndev->stats.tx_packets++;
+	}
+
+	return (netdev_tx_t)ret;
+}
+
+static int hns3_nic_net_set_mac_address(struct net_device *ndev, void *p)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct sockaddr *mac_addr = p;
+	int ret;
+
+	if (!mac_addr || !is_valid_ether_addr((const u8 *)mac_addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	ret = h->ae_algo->ops->set_mac_addr(h, mac_addr->sa_data);
+	if (ret) {
+		netdev_err(ndev, "set_mac_address fail, ret=%d!\n", ret);
+		return ret;
+	}
+
+	ether_addr_copy(ndev->dev_addr, mac_addr->sa_data);
+
+	return 0;
+}
+
+static int hns3_nic_set_features(struct net_device *netdev,
+				 netdev_features_t features)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+
+	if (features & (NETIF_F_TSO | NETIF_F_TSO6)) {
+		priv->ops.fill_desc = hns3_fill_desc_tso;
+		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso;
+	} else {
+		priv->ops.fill_desc = hns3_fill_desc;
+		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx;
+	}
+
+	netdev->features = features;
+	return 0;
+}
+
+static void
+hns3_nic_get_stats64(struct net_device *ndev, struct rtnl_link_stats64 *stats)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	int queue_num = priv->ae_handle->kinfo.num_tqps;
+	u64 tx_bytes = 0;
+	u64 rx_bytes = 0;
+	u64 tx_pkts = 0;
+	u64 rx_pkts = 0;
+	int idx = 0;
+
+	for (idx = 0; idx < queue_num; idx++) {
+		tx_bytes += priv->ring_data[idx].ring->stats.tx_bytes;
+		tx_pkts += priv->ring_data[idx].ring->stats.tx_pkts;
+		rx_bytes +=
+			priv->ring_data[idx + queue_num].ring->stats.rx_bytes;
+		rx_pkts += priv->ring_data[idx + queue_num].ring->stats.rx_pkts;
+	}
+
+	stats->tx_bytes = tx_bytes;
+	stats->tx_packets = tx_pkts;
+	stats->rx_bytes = rx_bytes;
+	stats->rx_packets = rx_pkts;
+
+	stats->rx_errors = ndev->stats.rx_errors;
+	stats->multicast = ndev->stats.multicast;
+	stats->rx_length_errors = ndev->stats.rx_length_errors;
+	stats->rx_crc_errors = ndev->stats.rx_crc_errors;
+	stats->rx_missed_errors = ndev->stats.rx_missed_errors;
+
+	stats->tx_errors = ndev->stats.tx_errors;
+	stats->rx_dropped = ndev->stats.rx_dropped;
+	stats->tx_dropped = ndev->stats.tx_dropped;
+	stats->collisions = ndev->stats.collisions;
+	stats->rx_over_errors = ndev->stats.rx_over_errors;
+	stats->rx_frame_errors = ndev->stats.rx_frame_errors;
+	stats->rx_fifo_errors = ndev->stats.rx_fifo_errors;
+	stats->tx_aborted_errors = ndev->stats.tx_aborted_errors;
+	stats->tx_carrier_errors = ndev->stats.tx_carrier_errors;
+	stats->tx_fifo_errors = ndev->stats.tx_fifo_errors;
+	stats->tx_heartbeat_errors = ndev->stats.tx_heartbeat_errors;
+	stats->tx_window_errors = ndev->stats.tx_window_errors;
+	stats->rx_compressed = ndev->stats.rx_compressed;
+	stats->tx_compressed = ndev->stats.tx_compressed;
+}
+
+static void hns3_add_tunnel_port(struct net_device *ndev, u16 port,
+				 enum hns3_udp_tnl_type type)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hns3_udp_tunnel *udp_tnl = &priv->udp_tnl[type];
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (udp_tnl->used && udp_tnl->dst_port == port) {
+		udp_tnl->used++;
+		return;
+	}
+
+	if (udp_tnl->used) {
+		netdev_warn(ndev,
+			    "UDP tunnel [%d], port [%d] offload\n", type, port);
+		return;
+	}
+
+	udp_tnl->dst_port = port;
+	udp_tnl->used = 1;
+	/* TBD send command to hardware to add port */
+	if (h->ae_algo->ops->add_tunnel_udp)
+		h->ae_algo->ops->add_tunnel_udp(h, port);
+}
+
+static void hns3_del_tunnel_port(struct net_device *ndev, u16 port,
+				 enum hns3_udp_tnl_type type)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hns3_udp_tunnel *udp_tnl = &priv->udp_tnl[type];
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!udp_tnl->used || udp_tnl->dst_port != port) {
+		netdev_warn(ndev,
+			    "Invalid UDP tunnel port %d\n", port);
+		return;
+	}
+
+	udp_tnl->used--;
+	if (udp_tnl->used)
+		return;
+
+	udp_tnl->dst_port = 0;
+	/* TBD send command to hardware to del port  */
+	if (h->ae_algo->ops->del_tunnel_udp)
+		h->ae_algo->ops->add_tunnel_udp(h, port);
+}
+
+/* hns3_nic_udp_tunnel_add - Get notifiacetion about UDP tunnel ports
+ * @netdev: This physical ports's netdev
+ * @ti: Tunnel information
+ */
+static void hns3_nic_udp_tunnel_add(struct net_device *ndev,
+				    struct udp_tunnel_info *ti)
+{
+	u16 port_n = ntohs(ti->port);
+
+	switch (ti->type) {
+	case UDP_TUNNEL_TYPE_VXLAN:
+		hns3_add_tunnel_port(ndev, port_n, HNS3_UDP_TNL_VXLAN);
+		break;
+	case UDP_TUNNEL_TYPE_GENEVE:
+		hns3_add_tunnel_port(ndev, port_n, HNS3_UDP_TNL_GENEVE);
+		break;
+	default:
+		netdev_err(ndev, "unsupported tunnel type %d\n", ti->type);
+		break;
+	}
+}
+
+static void hns3_nic_udp_tunnel_del(struct net_device *ndev,
+				    struct udp_tunnel_info *ti)
+{
+	u16 port_n = ntohs(ti->port);
+
+	switch (ti->type) {
+	case UDP_TUNNEL_TYPE_VXLAN:
+		hns3_del_tunnel_port(ndev, port_n, HNS3_UDP_TNL_VXLAN);
+		break;
+	case UDP_TUNNEL_TYPE_GENEVE:
+		hns3_del_tunnel_port(ndev, port_n, HNS3_UDP_TNL_GENEVE);
+		break;
+	default:
+		break;
+	}
+}
+
+static int hns3_setup_tc(struct net_device *ndev, u8 tc)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_knic_private_info *kinfo = &h->kinfo;
+	int i, ret;
+
+	if (tc > HNAE3_MAX_TC)
+		return -EINVAL;
+
+	if (kinfo->num_tc == tc)
+		return 0;
+
+	if (!ndev)
+		return -EINVAL;
+
+	if (!tc) {
+		netdev_reset_tc(ndev);
+		return 0;
+	}
+
+	/* Set num_tc for netdev */
+	ret = netdev_set_num_tc(ndev, tc);
+	if (ret)
+		return ret;
+
+	/* Set per TC queues for the VSI */
+	for (i = 0; i < HNAE3_MAX_TC; i++) {
+		if (kinfo->tc_info[i].enable)
+			netdev_set_tc_queue(ndev,
+					    kinfo->tc_info[i].tc,
+					    kinfo->tc_info[i].tqp_count,
+					    kinfo->tc_info[i].tqp_offset);
+	}
+
+	/* Assign UP2TC map for the VSI */
+	for (i = 0; i < HNAE3_MAX_TC; i++) {
+		netdev_set_prio_tc_map(ndev,
+				       kinfo->tc_info[i].up,
+				       kinfo->tc_info[i].tc);
+	}
+
+	return 0;
+}
+
+static int hns3_nic_setup_tc(struct net_device *dev, u32 handle,
+			     u32 chain_index, __be16 protocol,
+			     struct tc_to_netdev *tc)
+{
+	if (handle != TC_H_ROOT || tc->type != TC_SETUP_MQPRIO)
+		return -EINVAL;
+
+	return hns3_setup_tc(dev, tc->mqprio->num_tc);
+}
+
+static int hns3_vlan_rx_add_vid(struct net_device *ndev,
+				__be16 proto, u16 vid)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int ret = -EIO;
+
+	if (h->ae_algo->ops->set_vlan_filter)
+		ret = h->ae_algo->ops->set_vlan_filter(h, proto, vid, false);
+
+	return ret;
+}
+
+static int hns3_vlan_rx_kill_vid(struct net_device *ndev,
+				 __be16 proto, u16 vid)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int ret = -EIO;
+
+	if (h->ae_algo->ops->set_vlan_filter)
+		ret = h->ae_algo->ops->set_vlan_filter(h, proto, vid, true);
+
+	return ret;
+}
+
+static int hns3_ndo_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan,
+				u8 qos, __be16 vlan_proto)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int ret = -EIO;
+
+	if (h->ae_algo->ops->set_vf_vlan_filter)
+		ret = h->ae_algo->ops->set_vf_vlan_filter(h, vf, vlan,
+						   qos, vlan_proto);
+
+	return ret;
+}
+
+static const struct net_device_ops hns3_nic_netdev_ops = {
+	.ndo_open		= hns3_nic_net_open,
+	.ndo_stop		= hns3_nic_net_stop,
+	.ndo_start_xmit		= hns3_nic_net_xmit,
+	.ndo_set_mac_address	= hns3_nic_net_set_mac_address,
+	.ndo_set_features	= hns3_nic_set_features,
+	.ndo_get_stats64	= hns3_nic_get_stats64,
+	.ndo_setup_tc		= hns3_nic_setup_tc,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= hns3_nic_poll_controller,
+#endif
+	.ndo_set_rx_mode	= hns3_nic_set_rx_mode,
+	.ndo_udp_tunnel_add	= hns3_nic_udp_tunnel_add,
+	.ndo_udp_tunnel_del	= hns3_nic_udp_tunnel_del,
+	.ndo_vlan_rx_add_vid	= hns3_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= hns3_vlan_rx_kill_vid,
+	.ndo_set_vf_vlan	= hns3_ndo_set_vf_vlan,
+};
+
+/* hns3_probe - Device initialization routine
+ * @pdev: PCI device information struct
+ * @ent: entry in hns3_pci_tbl
+ *
+ * hns3_probe initializes a PF identified by a pci_dev structure.
+ * The OS initialization, configuring of the PF private structure,
+ * and a hardware reset occur.
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int hns3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct hnae3_ae_dev *ae_dev;
+	int ret;
+
+	ae_dev = kzalloc(sizeof(*ae_dev), GFP_KERNEL);
+	if (!ae_dev) {
+		ret = -ENOMEM;
+		return ret;
+	}
+
+	ae_dev->pdev = pdev;
+	ae_dev->dev_type = HNAE3_DEV_KNIC;
+	pci_set_drvdata(pdev, ae_dev);
+
+	return hnae3_register_ae_dev(ae_dev);
+}
+
+/* hns3_remove - Device removal routine
+ * @pdev: PCI device information struct
+ */
+static void hns3_remove(struct pci_dev *pdev)
+{
+	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev);
+
+	hnae3_unregister_ae_dev(ae_dev);
+
+	pci_set_drvdata(pdev, NULL);
+}
+
+static struct pci_driver hns3_driver = {
+	.name     = hns3_driver_name,
+	.id_table = hns3_pci_tbl,
+	.probe    = hns3_probe,
+	.remove   = hns3_remove,
+};
+
+/* set default feature to hns3 */
+static void hns3_set_default_feature(struct net_device *ndev)
+{
+	ndev->priv_flags |= IFF_UNICAST_FLT;
+
+	ndev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
+		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
+		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
+		NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+	ndev->hw_enc_features |= NETIF_F_TSO_MANGLEID;
+
+	ndev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
+
+	ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+		NETIF_F_HW_VLAN_CTAG_FILTER |
+		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
+		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
+		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
+		NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+	ndev->vlan_features |=
+		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
+		NETIF_F_SG | NETIF_F_GSO | NETIF_F_GRO |
+		NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
+		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
+		NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+	ndev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+		NETIF_F_HW_VLAN_CTAG_FILTER |
+		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
+		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
+		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
+		NETIF_F_GSO_UDP_TUNNEL_CSUM;
+}
+
+static int hns3_alloc_buffer(struct hns3_enet_ring *ring,
+			     struct hns3_desc_cb *cb)
+{
+	unsigned int order = hnae_page_order(ring);
+	struct page *p;
+
+	p = dev_alloc_pages(order);
+	if (!p)
+		return -ENOMEM;
+
+	cb->priv = p;
+	cb->page_offset = 0;
+	cb->reuse_flag = 0;
+	cb->buf  = page_address(p);
+	cb->length = hnae_page_size(ring);
+	cb->type = DESC_TYPE_PAGE;
+
+	memset(cb->buf, 0, cb->length);
+
+	return 0;
+}
+
+static void hns3_free_buffer(struct hns3_enet_ring *ring,
+			     struct hns3_desc_cb *cb)
+{
+	if (cb->type == DESC_TYPE_SKB)
+		dev_kfree_skb_any((struct sk_buff *)cb->priv);
+	else if (!HNAE3_IS_TX_RING(ring))
+		put_page((struct page *)cb->priv);
+	memset(cb, 0, sizeof(*cb));
+}
+
+static int hns3_map_buffer(struct hns3_enet_ring *ring, struct hns3_desc_cb *cb)
+{
+	cb->dma = dma_map_page(ring_to_dev(ring), cb->priv, 0,
+			       cb->length, ring_to_dma_dir(ring));
+
+	if (dma_mapping_error(ring_to_dev(ring), cb->dma))
+		return -EIO;
+
+	return 0;
+}
+
+static void hns3_unmap_buffer(struct hns3_enet_ring *ring,
+			      struct hns3_desc_cb *cb)
+{
+	if (cb->type == DESC_TYPE_SKB)
+		dma_unmap_single(ring_to_dev(ring), cb->dma, cb->length,
+				 ring_to_dma_dir(ring));
+	else
+		dma_unmap_page(ring_to_dev(ring), cb->dma, cb->length,
+			       ring_to_dma_dir(ring));
+}
+
+static inline void hns3_buffer_detach(struct hns3_enet_ring *ring, int i)
+{
+	hns3_unmap_buffer(ring, &ring->desc_cb[i]);
+	ring->desc[i].addr = 0;
+}
+
+static inline void hns3_free_buffer_detach(struct hns3_enet_ring *ring, int i)
+{
+	struct hns3_desc_cb *cb = &ring->desc_cb[i];
+
+	if (!ring->desc_cb[i].dma)
+		return;
+
+	hns3_buffer_detach(ring, i);
+	hns3_free_buffer(ring, cb);
+}
+
+static void hns3_free_buffers(struct hns3_enet_ring *ring)
+{
+	int i;
+
+	for (i = 0; i < ring->desc_num; i++)
+		hns3_free_buffer_detach(ring, i);
+}
+
+/* free desc along with its attached buffer */
+static void hns3_free_desc(struct hns3_enet_ring *ring)
+{
+	hns3_free_buffers(ring);
+
+	dma_unmap_single(ring_to_dev(ring), ring->desc_dma_addr,
+			 ring->desc_num * sizeof(ring->desc[0]),
+			 DMA_BIDIRECTIONAL);
+	ring->desc_dma_addr = 0;
+	kfree(ring->desc);
+	ring->desc = NULL;
+}
+
+static int hns3_alloc_desc(struct hns3_enet_ring *ring)
+{
+	int size = ring->desc_num * sizeof(ring->desc[0]);
+
+	ring->desc = kzalloc(size, GFP_KERNEL);
+	if (!ring->desc)
+		return -ENOMEM;
+
+	ring->desc_dma_addr = dma_map_single(ring_to_dev(ring),
+		ring->desc, size, DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(ring_to_dev(ring), ring->desc_dma_addr)) {
+		ring->desc_dma_addr = 0;
+		kfree(ring->desc);
+		ring->desc = NULL;
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static inline int hns3_reserve_buffer_map(struct hns3_enet_ring *ring,
+					  struct hns3_desc_cb *cb)
+{
+	int ret;
+
+	ret = hns3_alloc_buffer(ring, cb);
+	if (ret)
+		goto out;
+
+	ret = hns3_map_buffer(ring, cb);
+	if (ret)
+		goto out_with_buf;
+
+	return 0;
+
+out_with_buf:
+	hns3_free_buffers(ring);
+out:
+	return ret;
+}
+
+static inline int hns3_alloc_buffer_attach(struct hns3_enet_ring *ring, int i)
+{
+	int ret = hns3_reserve_buffer_map(ring, &ring->desc_cb[i]);
+
+	if (ret)
+		return ret;
+
+	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
+
+	return 0;
+}
+
+/* Allocate memory for raw pkg, and map with dma */
+static int hns3_alloc_ring_buffers(struct hns3_enet_ring *ring)
+{
+	int i, j, ret;
+
+	for (i = 0; i < ring->desc_num; i++) {
+		ret = hns3_alloc_buffer_attach(ring, i);
+		if (ret)
+			goto out_buffer_fail;
+	}
+
+	return 0;
+
+out_buffer_fail:
+	for (j = i - 1; j >= 0; j--)
+		hns3_free_buffer_detach(ring, j);
+	return ret;
+}
+
+/* detach a in-used buffer and replace with a reserved one  */
+static inline void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
+				       struct hns3_desc_cb *res_cb)
+{
+	hns3_map_buffer(ring, &ring->desc_cb[i]);
+	ring->desc_cb[i] = *res_cb;
+	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
+}
+
+static inline void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i)
+{
+	ring->desc_cb[i].reuse_flag = 0;
+	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma
+		+ ring->desc_cb[i].page_offset);
+}
+
+static inline void hns3_nic_reclaim_one_desc(struct hns3_enet_ring *ring,
+					     int *bytes, int *pkts)
+{
+	struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_clean];
+
+	(*pkts) += (desc_cb->type == DESC_TYPE_SKB);
+	(*bytes) += desc_cb->length;
+	/* desc_cb will be cleaned, after hnae_free_buffer_detach*/
+	hns3_free_buffer_detach(ring, ring->next_to_clean);
+
+	ring_ptr_move_fw(ring, next_to_clean);
+}
+
+static int is_valid_clean_head(struct hns3_enet_ring *ring, int h)
+{
+	int u = ring->next_to_use;
+	int c = ring->next_to_clean;
+
+	if (unlikely(h > ring->desc_num))
+		return 0;
+
+	return u > c ? (h > c && h <= u) : (h > c || h <= u);
+}
+
+int hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
+{
+	struct net_device *ndev = ring->tqp->handle->kinfo.netdev;
+	struct netdev_queue *dev_queue;
+	int bytes, pkts;
+	int head;
+
+	head = readl_relaxed(ring->tqp->io_base + HNS3_RING_TX_RING_HEAD_REG);
+	rmb(); /* Make sure head is ready before touch any data */
+
+	if (is_ring_empty(ring) || head == ring->next_to_clean)
+		return 0; /* no data to poll */
+
+	if (!is_valid_clean_head(ring, head)) {
+		netdev_err(ndev, "wrong head (%d, %d-%d)\n", head,
+			   ring->next_to_use, ring->next_to_clean);
+		ring->stats.io_err_cnt++;
+		return -EIO;
+	}
+
+	bytes = 0;
+	pkts = 0;
+	while (head != ring->next_to_clean && budget) {
+		hns3_nic_reclaim_one_desc(ring, &bytes, &pkts);
+		/* Issue prefetch for next Tx descriptor */
+		prefetch(&ring->desc_cb[ring->next_to_clean]);
+		budget--;
+	}
+
+	ring->tqp_vector->tx_group.total_bytes += bytes;
+	ring->tqp_vector->tx_group.total_packets += pkts;
+
+	dev_queue = netdev_get_tx_queue(ndev, ring->tqp->tqp_index);
+	netdev_tx_completed_queue(dev_queue, pkts, bytes);
+
+	return !!budget;
+}
+
+static int hns3_desc_unused(struct hns3_enet_ring *ring)
+{
+	int ntc = ring->next_to_clean;
+	int ntu = ring->next_to_use;
+
+	return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu;
+}
+
+static void
+hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, int cleand_count)
+{
+	struct hns3_desc_cb *desc_cb;
+	struct hns3_desc_cb res_cbs;
+	int i, ret;
+
+	for (i = 0; i < cleand_count; i++) {
+		desc_cb = &ring->desc_cb[ring->next_to_use];
+		if (desc_cb->reuse_flag) {
+			ring->stats.reuse_pg_cnt++;
+			hns3_reuse_buffer(ring, ring->next_to_use);
+		} else {
+			ret = hns3_reserve_buffer_map(ring, &res_cbs);
+			if (ret) {
+				ring->stats.sw_err_cnt++;
+				netdev_err(ring->tqp->handle->kinfo.netdev,
+					   "hnae reserve buffer map failed.\n");
+				break;
+			}
+			hns3_replace_buffer(ring, ring->next_to_use, &res_cbs);
+		}
+
+		ring_ptr_move_fw(ring, next_to_use);
+	}
+
+	wmb(); /* Make all data has been write before submit */
+	writel_relaxed(i, ring->tqp->io_base + HNS3_RING_RX_RING_HEAD_REG);
+}
+
+/* hns3_nic_get_headlen - determine size of header for LRO/GRO
+ * @data: pointer to the start of the headers
+ * @max: total length of section to find headers in
+ *
+ * This function is meant to determine the length of headers that will
+ * be recognized by hardware for LRO, GRO, and RSC offloads.  The main
+ * motivation of doing this is to only perform one pull for IPv4 TCP
+ * packets so that we can do basic things like calculating the gso_size
+ * based on the average data per packet.
+ */
+static unsigned int hns3_nic_get_headlen(unsigned char *data, u32 flag,
+					 unsigned int max_size)
+{
+	unsigned char *network;
+	u8 hlen;
+
+	/* This should never happen, but better safe than sorry */
+	if (max_size < ETH_HLEN)
+		return max_size;
+
+	/* Initialize network frame pointer */
+	network = data;
+
+	/* Set first protocol and move network header forward */
+	network += ETH_HLEN;
+
+	/* Handle any vlan tag if present */
+	if (hnae_get_field(flag, HNS3_RXD_VLAN_M, HNS3_RXD_VLAN_S)
+		== HNS3_RX_FLAG_VLAN_PRESENT) {
+		if ((typeof(max_size))(network - data) > (max_size - VLAN_HLEN))
+			return max_size;
+
+		network += VLAN_HLEN;
+	}
+
+	/* Handle L3 protocols */
+	if (hnae_get_field(flag, HNS3_RXD_L3ID_M, HNS3_RXD_L3ID_S)
+		== HNS3_RX_FLAG_L3ID_IPV4) {
+		if ((typeof(max_size))(network - data) >
+		    (max_size - sizeof(struct iphdr)))
+			return max_size;
+
+		/* Access ihl as a u8 to avoid unaligned access on ia64 */
+		hlen = (network[0] & 0x0F) << 2;
+
+		/* Verify hlen meets minimum size requirements */
+		if (hlen < sizeof(struct iphdr))
+			return network - data;
+
+		/* Record next protocol if header is present */
+	} else if (hnae_get_field(flag, HNS3_RXD_L3ID_M, HNS3_RXD_L3ID_S)
+		== HNS3_RX_FLAG_L3ID_IPV6) {
+		if ((typeof(max_size))(network - data) >
+		    (max_size - sizeof(struct ipv6hdr)))
+			return max_size;
+
+		/* Record next protocol */
+		hlen = sizeof(struct ipv6hdr);
+	} else {
+		return network - data;
+	}
+
+	/* Relocate pointer to start of L4 header */
+	network += hlen;
+
+	/* Finally sort out TCP/UDP */
+	if (hnae_get_field(flag, HNS3_RXD_L4ID_M, HNS3_RXD_L4ID_S)
+		== HNS3_RX_FLAG_L4ID_TCP) {
+		if ((typeof(max_size))(network - data) >
+		    (max_size - sizeof(struct tcphdr)))
+			return max_size;
+
+		/* Access doff as a u8 to avoid unaligned access on ia64 */
+		hlen = (network[12] & 0xF0) >> 2;
+
+		/* Verify hlen meets minimum size requirements */
+		if (hlen < sizeof(struct tcphdr))
+			return network - data;
+
+		network += hlen;
+	} else if (hnae_get_field(flag, HNS3_RXD_L4ID_M, HNS3_RXD_L4ID_S)
+		== HNS3_RX_FLAG_L4ID_UDP) {
+		if ((typeof(max_size))(network - data) >
+		    (max_size - sizeof(struct udphdr)))
+			return max_size;
+
+		network += sizeof(struct udphdr);
+	}
+
+	/* If everything has gone correctly network should be the
+	 * data section of the packet and will be the end of the header.
+	 * If not then it probably represents the end of the last recognized
+	 * header.
+	 */
+	if ((typeof(max_size))(network - data) < max_size)
+		return network - data;
+	else
+		return max_size;
+}
+
+static void hns3_nic_reuse_page(struct sk_buff *skb, int i,
+				struct hns3_enet_ring *ring, int pull_len,
+				struct hns3_desc_cb *desc_cb)
+{
+	struct hns3_desc *desc;
+	int truesize, size;
+	int last_offset;
+	bool twobufs;
+
+	twobufs = ((PAGE_SIZE < 8192) &&
+		hnae_buf_size(ring) == HNS3_BUFFER_SIZE_2048);
+
+	desc = &ring->desc[ring->next_to_clean];
+	size = le16_to_cpu(desc->rx.size);
+
+	if (twobufs) {
+		truesize = hnae_buf_size(ring);
+	} else {
+		truesize = ALIGN(size, L1_CACHE_BYTES);
+		last_offset = hnae_page_size(ring) - hnae_buf_size(ring);
+	}
+
+	skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len,
+			size - pull_len, truesize - pull_len);
+
+	 /* Avoid re-using remote pages,flag default unreuse */
+	if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id()))
+		return;
+
+	if (twobufs) {
+		/* If we are only owner of page we can reuse it */
+		if (likely(page_count(desc_cb->priv) == 1)) {
+			/* Flip page offset to other buffer */
+			desc_cb->page_offset ^= truesize;
+
+			desc_cb->reuse_flag = 1;
+			/* bump ref count on page before it is given*/
+			get_page(desc_cb->priv);
+		}
+		return;
+	}
+
+	/* Move offset up to the next cache line */
+	desc_cb->page_offset += truesize;
+
+	if (desc_cb->page_offset <= last_offset) {
+		desc_cb->reuse_flag = 1;
+		/* Bump ref count on page before it is given*/
+		get_page(desc_cb->priv);
+	}
+}
+
+static void hns3_rx_checksum(struct hns3_enet_ring *ring, struct sk_buff *skb,
+			     struct hns3_desc *desc)
+{
+	struct net_device *ndev = ring->tqp->handle->kinfo.netdev;
+	int l3_type, l4_type;
+	u32 bd_base_info;
+	int ol4_type;
+	u32 l234info;
+
+	bd_base_info = le32_to_cpu(desc->rx.bd_base_info);
+	l234info = le32_to_cpu(desc->rx.l234_info);
+
+	skb->ip_summed = CHECKSUM_NONE;
+
+	skb_checksum_none_assert(skb);
+
+	if (!(ndev->features & NETIF_F_RXCSUM))
+		return;
+
+	/* check if hardware has done checksum */
+	if (!hnae_get_bit(bd_base_info, HNS3_RXD_L3L4P_B))
+		return;
+
+	if (unlikely(hnae_get_bit(l234info, HNS3_RXD_L3E_B) ||
+		     hnae_get_bit(l234info, HNS3_RXD_L4E_B) ||
+		     hnae_get_bit(l234info, HNS3_RXD_OL3E_B) ||
+		     hnae_get_bit(l234info, HNS3_RXD_OL4E_B))) {
+		netdev_err(ndev, "L3/L4 error pkt\n");
+		ring->stats.l3l4_csum_err++;
+		return;
+	}
+
+	l3_type = hnae_get_field(l234info, HNS3_RXD_L3ID_M,
+				 HNS3_RXD_L3ID_S);
+	l4_type = hnae_get_field(l234info, HNS3_RXD_L4ID_M,
+				 HNS3_RXD_L4ID_S);
+
+	ol4_type = hnae_get_field(l234info, HNS3_RXD_OL4ID_M, HNS3_RXD_OL4ID_S);
+	switch (ol4_type) {
+	case HNS3_OL4_TYPE_MAC_IN_UDP:
+	case HNS3_OL4_TYPE_NVGRE:
+		skb->csum_level = 1;
+	case HNS3_OL4_TYPE_NO_TUN:
+		/* Can checksum ipv4 or ipv6 + UDP/TCP/SCTP packets */
+		if (l3_type == HNS3_L3_TYPE_IPV4 ||
+		    (l3_type == HNS3_L3_TYPE_IPV6 &&
+		     (l4_type == HNS3_L4_TYPE_UDP ||
+		      l4_type == HNS3_L4_TYPE_TCP ||
+		      l4_type == HNS3_L4_TYPE_SCTP)))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+		break;
+	}
+}
+
+static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
+			     struct sk_buff **out_skb, int *out_bnum)
+{
+	struct net_device *ndev = ring->tqp->handle->kinfo.netdev;
+	struct hns3_desc_cb *desc_cb;
+	struct hns3_desc *desc;
+	struct sk_buff *skb;
+	unsigned char *va;
+	u32 bd_base_info;
+	int pull_len;
+	u32 l234info;
+	int length;
+	int bnum;
+
+	desc = &ring->desc[ring->next_to_clean];
+	desc_cb = &ring->desc_cb[ring->next_to_clean];
+
+	prefetch(desc);
+
+	length = le16_to_cpu(desc->rx.pkt_len);
+	bd_base_info = le32_to_cpu(desc->rx.bd_base_info);
+	l234info = le32_to_cpu(desc->rx.l234_info);
+
+	/* Check valid BD */
+	if (!hnae_get_bit(bd_base_info, HNS3_RXD_VLD_B))
+		return -EFAULT;
+
+	va = (unsigned char *)desc_cb->buf + desc_cb->page_offset;
+
+	/* Prefetch first cache line of first page */
+	prefetch(va);
+#if L1_CACHE_BYTES < 128
+	prefetch(va + L1_CACHE_BYTES);
+#endif
+
+	skb = *out_skb = napi_alloc_skb(&ring->tqp_vector->napi,
+					HNS3_RX_HEAD_SIZE);
+	if (unlikely(!skb)) {
+		netdev_err(ndev, "alloc rx skb fail\n");
+		ring->stats.sw_err_cnt++;
+		return -ENOMEM;
+	}
+
+	prefetchw(skb->data);
+
+	bnum = 1;
+	if (length <= HNS3_RX_HEAD_SIZE) {
+		memcpy(__skb_put(skb, length), va, ALIGN(length, sizeof(long)));
+
+		/* We can reuse buffer as-is, just make sure it is local */
+		if (likely(page_to_nid(desc_cb->priv) == numa_node_id()))
+			desc_cb->reuse_flag = 1;
+		else /* This page cannot be reused so discard it */
+			put_page(desc_cb->priv);
+
+		ring_ptr_move_fw(ring, next_to_clean);
+	} else {
+		ring->stats.seg_pkt_cnt++;
+
+		pull_len = hns3_nic_get_headlen(va, l234info,
+						HNS3_RX_HEAD_SIZE);
+		memcpy(__skb_put(skb, pull_len), va,
+		       ALIGN(pull_len, sizeof(long)));
+
+		hns3_nic_reuse_page(skb, 0, ring, pull_len, desc_cb);
+		ring_ptr_move_fw(ring, next_to_clean);
+
+		while (!hnae_get_bit(bd_base_info, HNS3_RXD_FE_B)) {
+			desc = &ring->desc[ring->next_to_clean];
+			desc_cb = &ring->desc_cb[ring->next_to_clean];
+			bd_base_info = le32_to_cpu(desc->rx.bd_base_info);
+			hns3_nic_reuse_page(skb, bnum, ring, 0, desc_cb);
+			ring_ptr_move_fw(ring, next_to_clean);
+			bnum++;
+		}
+	}
+
+	*out_bnum = bnum;
+
+	if (unlikely(!hnae_get_bit(bd_base_info, HNS3_RXD_VLD_B))) {
+		netdev_err(ndev, "no valid bd,%016llx,%016llx\n",
+			   ((u64 *)desc)[0], ((u64 *)desc)[1]);
+		ring->stats.non_vld_descs++;
+		dev_kfree_skb_any(skb);
+		return -EINVAL;
+	}
+
+	if (unlikely((!desc->rx.pkt_len) ||
+		     hnae_get_bit(l234info, HNS3_RXD_TRUNCAT_B))) {
+		netdev_err(ndev, "truncated pkt\n");
+		ring->stats.err_pkt_len++;
+		dev_kfree_skb_any(skb);
+		return -EFAULT;
+	}
+
+	if (unlikely(hnae_get_bit(l234info, HNS3_RXD_L2E_B))) {
+		netdev_err(ndev, "L2 error pkt\n");
+		ring->stats.l2_err++;
+		dev_kfree_skb_any(skb);
+		return -EFAULT;
+	}
+
+	ring->stats.rx_pkts++;
+	ring->stats.rx_bytes += skb->len;
+	ring->tqp_vector->rx_group.total_bytes += skb->len;
+
+	hns3_rx_checksum(ring, skb, desc);
+	return 0;
+}
+
+int hns3_clean_rx_ring_ex(struct hns3_enet_ring *ring,
+			  struct sk_buff **skb_ex,
+			  int budget)
+{
+#define HNS3_RCB_NOF_RX_BUFF_ONCE 16
+	struct net_device *ndev = ring->tqp->handle->kinfo.netdev;
+	int recv_pkts, recv_bds, clean_count, err;
+	int unused_count = hns3_desc_unused(ring);
+	int num, bnum;
+
+	num = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_FBDNUM_REG);
+	rmb(); /* Make sure num taken effect before the other data is touched */
+
+	recv_pkts = 0, recv_bds = 0, clean_count = 0;
+	num -= unused_count;
+
+	while (recv_pkts < budget && recv_bds < num) {
+		/* Reuse or realloc buffers */
+		if (clean_count + unused_count >= HNS3_RCB_NOF_RX_BUFF_ONCE) {
+			hns3_nic_alloc_rx_buffers(ring,
+						  clean_count + unused_count);
+			clean_count = 0;
+			unused_count = hns3_desc_unused(ring);
+		}
+
+		/* Poll one pkt */
+		err = hns3_handle_rx_bd(ring, skb_ex, &bnum);
+		if (unlikely(!(*skb_ex))) {/* This fault cannot be repaired */
+			netdev_err(ndev,
+				   "hns3_handle_rx_bd read out empty skb\n");
+			goto out;
+		}
+
+		recv_bds += bnum;
+		clean_count += bnum;
+		if (unlikely(err)) {  /* Do jump the err */
+			recv_pkts++;
+			netdev_err(ndev,
+				   "hns3_handle_rx_bd return error err:%d, recv_pkts:%d\n",
+				   err, recv_pkts);
+			continue;
+		}
+
+		recv_pkts++;
+	}
+
+out:
+	/* Make all data has been write before submit */
+	if (clean_count + unused_count > 0)
+		hns3_nic_alloc_rx_buffers(ring,
+					  clean_count + unused_count);
+
+	return recv_pkts;
+}
+
+static int hns3_clean_rx_ring(struct hns3_enet_ring *ring, int budget)
+{
+#define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
+	struct net_device *ndev = ring->tqp->handle->kinfo.netdev;
+	int recv_pkts, recv_bds, clean_count, err;
+	int unused_count = hns3_desc_unused(ring);
+	struct sk_buff *skb = NULL;
+	int num, bnum = 0;
+
+	num = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_FBDNUM_REG);
+	rmb(); /* Make sure num taken effect before the other data is touched */
+
+	recv_pkts = 0, recv_bds = 0, clean_count = 0;
+	num -= unused_count;
+
+	while (recv_pkts < budget && recv_bds < num) {
+		/* Reuse or realloc buffers */
+		if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
+			hns3_nic_alloc_rx_buffers(ring,
+						  clean_count + unused_count);
+			clean_count = 0;
+			unused_count = hns3_desc_unused(ring);
+		}
+
+		/* Poll one pkt */
+		err = hns3_handle_rx_bd(ring, &skb, &bnum);
+		if (unlikely(!skb)) /* This fault cannot be repaired */
+			goto out;
+
+		recv_bds += bnum;
+		clean_count += bnum;
+		if (unlikely(err)) {  /* Do jump the err */
+			recv_pkts++;
+			continue;
+		}
+
+		/* Do update ip stack process */
+		skb->protocol = eth_type_trans(skb, ndev);
+		(void)napi_gro_receive(&ring->tqp_vector->napi, skb);
+
+		recv_pkts++;
+	}
+
+out:
+	/* Make all data has been write before submit */
+	if (clean_count + unused_count > 0)
+		hns3_nic_alloc_rx_buffers(ring,
+					  clean_count + unused_count);
+
+	return recv_pkts;
+}
+
+static bool hns3_get_new_int_gl(struct hns3_enet_ring_group *ring_group)
+{
+	enum hns3_flow_level_range new_flow_level;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	int packets_per_secs;
+	int bytes_per_usecs;
+	u16 new_int_gl;
+	int usecs;
+
+	if (!ring_group->int_gl)
+		return false;
+
+	if (ring_group->total_packets == 0) {
+		ring_group->int_gl = HNS3_INT_GL_50K;
+		ring_group->flow_level = HNS3_FLOW_LOW;
+		return true;
+	}
+	/* Simple throttlerate management
+	 * 0-10MB/s   lower     (50000 ints/s)
+	 * 10-20MB/s   middle    (20000 ints/s)
+	 * 20-1249MB/s high      (18000 ints/s)
+	 * > 40000pps  ultra     (8000 ints/s)
+	 */
+
+	new_flow_level = ring_group->flow_level;
+	new_int_gl = ring_group->int_gl;
+	tqp_vector = ring_group->ring->tqp_vector;
+	usecs = (ring_group->int_gl << 1);
+	bytes_per_usecs = ring_group->total_bytes / usecs;
+	/* 1000000 microseconds */
+	packets_per_secs = ring_group->total_packets * 1000000 / usecs;
+
+	switch (new_flow_level) {
+	case HNS3_FLOW_LOW:
+		if (bytes_per_usecs > 10)
+			new_flow_level = HNS3_FLOW_MID;
+		break;
+	case HNS3_FLOW_MID:
+		if (bytes_per_usecs > 20)
+			new_flow_level = HNS3_FLOW_HIGH;
+		else if (bytes_per_usecs <= 10)
+			new_flow_level = HNS3_FLOW_LOW;
+		break;
+	case HNS3_FLOW_HIGH:
+	case HNS3_FLOW_ULTRA:
+	default:
+		if (bytes_per_usecs <= 20)
+			new_flow_level = HNS3_FLOW_MID;
+		break;
+	}
+#define HNS3_RX_ULTRA_PACKET_RATE 40000
+
+	if ((packets_per_secs > HNS3_RX_ULTRA_PACKET_RATE) &&
+	    (&tqp_vector->rx_group == ring_group))
+		new_flow_level = HNS3_FLOW_ULTRA;
+
+	switch (new_flow_level) {
+	case HNS3_FLOW_LOW:
+		new_int_gl = HNS3_INT_GL_50K;
+		break;
+	case HNS3_FLOW_MID:
+		new_int_gl = HNS3_INT_GL_20K;
+		break;
+	case HNS3_FLOW_HIGH:
+		new_int_gl = HNS3_INT_GL_18K;
+		break;
+	case HNS3_FLOW_ULTRA:
+		new_int_gl = HNS3_INT_GL_8K;
+		break;
+	default:
+		break;
+	}
+
+	ring_group->total_bytes = 0;
+	ring_group->total_packets = 0;
+	ring_group->flow_level = new_flow_level;
+	if (new_int_gl != ring_group->int_gl) {
+		ring_group->int_gl = new_int_gl;
+		return true;
+	}
+	return false;
+}
+
+static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector)
+{
+	u16 rx_int_gl, tx_int_gl;
+	bool rx, tx;
+
+	rx = hns3_get_new_int_gl(&tqp_vector->rx_group);
+	tx = hns3_get_new_int_gl(&tqp_vector->tx_group);
+	rx_int_gl = tqp_vector->rx_group.int_gl;
+	tx_int_gl = tqp_vector->tx_group.int_gl;
+	if (rx && tx) {
+		if (rx_int_gl > tx_int_gl) {
+			tqp_vector->tx_group.int_gl = rx_int_gl;
+			tqp_vector->tx_group.flow_level =
+				tqp_vector->rx_group.flow_level;
+			hns3_set_vector_gl(tqp_vector, rx_int_gl);
+		} else {
+			tqp_vector->rx_group.int_gl = tx_int_gl;
+			tqp_vector->rx_group.flow_level =
+				tqp_vector->tx_group.flow_level;
+			hns3_set_vector_gl(tqp_vector, tx_int_gl);
+		}
+	}
+}
+
+static int hns3_nic_common_poll(struct napi_struct *napi, int budget)
+{
+	struct hns3_enet_ring *ring;
+	int rx_pkt_total = 0;
+
+	struct hns3_enet_tqp_vector *tqp_vector =
+		container_of(napi, struct hns3_enet_tqp_vector, napi);
+	bool clean_complete = true;
+	int rx_budget;
+
+	/* Since the actual Tx work is minimal, we can give the Tx a larger
+	 * budget and be more aggressive about cleaning up the Tx descriptors.
+	 */
+	hns3_for_each_ring(ring, tqp_vector->tx_group) {
+		if (!hns3_clean_tx_ring(ring, budget)) {
+			clean_complete = false;
+			continue;
+		}
+	}
+
+	/* make sure rx ring budget not smaller than 1 */
+	rx_budget = max(budget / tqp_vector->num_tqps, 1);
+
+	hns3_for_each_ring(ring, tqp_vector->rx_group) {
+		int rx_cleaned = hns3_clean_rx_ring(ring, rx_budget);
+
+		if (rx_cleaned >= rx_budget)
+			clean_complete = false;
+
+		rx_pkt_total += rx_cleaned;
+	}
+
+	tqp_vector->rx_group.total_packets += rx_pkt_total;
+
+	if (!clean_complete)
+		return budget;
+
+	napi_complete(napi);
+	hns3_update_new_int_gl(tqp_vector);
+	hns3_mask_vector_irq(tqp_vector, 1);
+
+	return rx_pkt_total;
+}
+
+static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
+				      struct hnae3_ring_chain_node *head)
+{
+	struct pci_dev *pdev = tqp_vector->handle->pdev;
+	struct hnae3_ring_chain_node *cur_chain = head;
+	struct hnae3_ring_chain_node *chain;
+	struct hns3_enet_ring *tx_ring;
+	struct hns3_enet_ring *rx_ring;
+
+	tx_ring = tqp_vector->tx_group.ring;
+	if (tx_ring) {
+		cur_chain->tqp_index = tx_ring->tqp->tqp_index;
+		hnae_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
+			     HNAE3_RING_TYPE_TX);
+
+		cur_chain->next = NULL;
+
+		while (tx_ring->next) {
+			tx_ring = tx_ring->next;
+
+			chain = devm_kzalloc(&pdev->dev, sizeof(*chain),
+					     GFP_KERNEL);
+			if (!chain)
+				return -ENOMEM;
+
+			cur_chain->next = chain;
+			chain->tqp_index = tx_ring->tqp->tqp_index;
+			hnae_set_bit(chain->flag, HNAE3_RING_TYPE_B,
+				     HNAE3_RING_TYPE_TX);
+
+			cur_chain = chain;
+		}
+	}
+
+	rx_ring = tqp_vector->rx_group.ring;
+	if (!tx_ring && rx_ring) {
+		cur_chain->next = NULL;
+		cur_chain->tqp_index = rx_ring->tqp->tqp_index;
+		hnae_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
+			     HNAE3_RING_TYPE_RX);
+
+		rx_ring = rx_ring->next;
+	}
+
+	while (rx_ring) {
+		chain = devm_kzalloc(&pdev->dev, sizeof(*chain), GFP_KERNEL);
+		if (!chain)
+			return -ENOMEM;
+
+		cur_chain->next = chain;
+		chain->tqp_index = rx_ring->tqp->tqp_index;
+		hnae_set_bit(chain->flag, HNAE3_RING_TYPE_B,
+			     HNAE3_RING_TYPE_RX);
+		cur_chain = chain;
+
+		rx_ring = rx_ring->next;
+	}
+
+	return 0;
+}
+
+static void hns3_free_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
+					struct hnae3_ring_chain_node *head)
+{
+	struct pci_dev *pdev = tqp_vector->handle->pdev;
+	struct hnae3_ring_chain_node *chain_tmp, *chain;
+
+	chain = head->next;
+
+	while (chain) {
+		chain_tmp = chain->next;
+		devm_kfree(&pdev->dev, chain);
+		chain = chain_tmp;
+	}
+}
+
+static void hns3_add_ring_to_group(struct hns3_enet_ring_group *group,
+				   struct hns3_enet_ring *ring)
+{
+	ring->next = group->ring;
+	group->ring = ring;
+
+	group->count++;
+}
+
+static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
+{
+	struct hnae3_ring_chain_node vector_ring_chain;
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	struct hnae3_vector_info *vector;
+	struct pci_dev *pdev = h->pdev;
+	u16 tqp_num = h->kinfo.num_tqps;
+	u16 vector_num;
+	int ret = 0;
+	u16 i;
+
+	/* RSS size, cpu online and vector_num should be the same */
+	/* Should consider 2p/4p later */
+	vector_num = min_t(u16, num_online_cpus(), tqp_num);
+	vector = devm_kcalloc(&pdev->dev, vector_num, sizeof(*vector),
+			      GFP_KERNEL);
+	if (!vector)
+		return -ENOMEM;
+
+	vector_num = h->ae_algo->ops->get_vector(h, vector_num, vector);
+
+	priv->vector_num = vector_num;
+	priv->tqp_vector = (struct hns3_enet_tqp_vector *)
+		devm_kcalloc(&pdev->dev, vector_num, sizeof(*priv->tqp_vector),
+			     GFP_KERNEL);
+	if (!priv->tqp_vector)
+		return -ENOMEM;
+
+	for (i = 0; i < tqp_num; i++) {
+		u16 vector_i = i % vector_num;
+
+		tqp_vector = &priv->tqp_vector[vector_i];
+
+		hns3_add_ring_to_group(&tqp_vector->tx_group,
+				       priv->ring_data[i].ring);
+
+		hns3_add_ring_to_group(&tqp_vector->rx_group,
+				       priv->ring_data[i + tqp_num].ring);
+
+		tqp_vector->idx = vector_i;
+		tqp_vector->mask_addr = vector[vector_i].io_addr;
+		tqp_vector->vector_irq = vector[vector_i].vector;
+		tqp_vector->num_tqps++;
+
+		priv->ring_data[i].ring->tqp_vector = tqp_vector;
+		priv->ring_data[i + tqp_num].ring->tqp_vector = tqp_vector;
+	}
+
+	for (i = 0; i < vector_num; i++) {
+		tqp_vector = &priv->tqp_vector[i];
+
+		tqp_vector->rx_group.total_bytes = 0;
+		tqp_vector->rx_group.total_packets = 0;
+		tqp_vector->tx_group.total_bytes = 0;
+		tqp_vector->tx_group.total_packets = 0;
+		hns3_vector_gl_rl_init(tqp_vector);
+		tqp_vector->handle = h;
+
+		ret = hns3_get_vector_ring_chain(tqp_vector,
+						 &vector_ring_chain);
+		if (ret)
+			goto out;
+
+		ret = h->ae_algo->ops->map_ring_to_vector(h,
+			tqp_vector->vector_irq, &vector_ring_chain);
+		if (ret)
+			goto out;
+
+		hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
+
+		netif_napi_add(priv->netdev, &tqp_vector->napi,
+			       hns3_nic_common_poll, NAPI_POLL_WEIGHT);
+	}
+
+out:
+	devm_kfree(&pdev->dev, vector);
+	return ret;
+}
+
+static int hns3_nic_uninit_vector_data(struct hns3_nic_priv *priv)
+{
+	struct hnae3_ring_chain_node vector_ring_chain;
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	struct pci_dev *pdev = h->pdev;
+	int i, ret;
+
+	for (i = 0; i < priv->vector_num; i++) {
+		tqp_vector = &priv->tqp_vector[i];
+
+		ret = hns3_get_vector_ring_chain(tqp_vector,
+						 &vector_ring_chain);
+		if (ret)
+			return ret;
+
+		ret = h->ae_algo->ops->unmap_ring_from_vector(h,
+			tqp_vector->vector_irq, &vector_ring_chain);
+		if (ret)
+			return ret;
+
+		hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
+
+		if (priv->tqp_vector[i].irq_init_flag == HNS3_VEVTOR_INITED) {
+			(void)irq_set_affinity_hint(
+				priv->tqp_vector[i].vector_irq,
+						    NULL);
+			devm_free_irq(&pdev->dev,
+				      priv->tqp_vector[i].vector_irq,
+				      &priv->tqp_vector[i]);
+		}
+
+		priv->ring_data[i].ring->irq_init_flag = HNS3_VEVTOR_NOT_INITED;
+
+		netif_napi_del(&priv->tqp_vector[i].napi);
+	}
+
+	devm_kfree(&pdev->dev, priv->tqp_vector);
+
+	return 0;
+}
+
+static int hns3_ring_get_cfg(struct hnae3_queue *q, struct hns3_nic_priv *priv,
+			     int ring_type)
+{
+	struct hns3_nic_ring_data *ring_data = priv->ring_data;
+	int queue_num = priv->ae_handle->kinfo.num_tqps;
+	struct pci_dev *pdev = priv->ae_handle->pdev;
+	struct hns3_enet_ring *ring;
+
+	ring = devm_kzalloc(&pdev->dev, sizeof(*ring), GFP_KERNEL);
+	if (!ring)
+		return -ENOMEM;
+
+	if (ring_type == HNAE3_RING_TYPE_TX) {
+		ring_data[q->tqp_index].ring = ring;
+		ring->io_base = (u8 __iomem *)q->io_base + HNS3_TX_REG_OFFSET;
+	} else {
+		ring_data[q->tqp_index + queue_num].ring = ring;
+		ring->io_base = q->io_base;
+	}
+
+	hnae_set_bit(ring->flag, HNAE3_RING_TYPE_B, ring_type);
+
+	ring_data[q->tqp_index].queue_index = q->tqp_index;
+
+	ring->tqp = q;
+	ring->desc = NULL;
+	ring->desc_cb = NULL;
+	ring->dev = priv->dev;
+	ring->desc_dma_addr = 0;
+	ring->buf_size = q->buf_size;
+	ring->desc_num = q->desc_num;
+	ring->next_to_use = 0;
+	ring->next_to_clean = 0;
+
+	return 0;
+}
+
+static int hns3_queue_to_ring(struct hnae3_queue *tqp,
+			      struct hns3_nic_priv *priv)
+{
+	int ret;
+
+	ret = hns3_ring_get_cfg(tqp, priv, HNAE3_RING_TYPE_TX);
+	if (ret)
+		return ret;
+
+	ret = hns3_ring_get_cfg(tqp, priv, HNAE3_RING_TYPE_RX);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int hns3_get_ring_config(struct hns3_nic_priv *priv)
+{
+	struct hnae3_handle *h = priv->ae_handle;
+	struct pci_dev *pdev = h->pdev;
+	int i, ret;
+
+	priv->ring_data =  devm_kzalloc(&pdev->dev, h->kinfo.num_tqps *
+					sizeof(*priv->ring_data) * 2,
+					GFP_KERNEL);
+	if (!priv->ring_data)
+		return -ENOMEM;
+
+	for (i = 0; i < h->kinfo.num_tqps; i++) {
+		ret = hns3_queue_to_ring(h->kinfo.tqp[i], priv);
+		if (ret)
+			goto err;
+	}
+
+	return 0;
+err:
+	devm_kfree(&pdev->dev, priv->ring_data);
+	return ret;
+}
+
+static int hns3_alloc_ring_memory(struct hns3_enet_ring *ring)
+{
+	int ret;
+
+	if (ring->desc_num <= 0 || ring->buf_size <= 0)
+		return -EINVAL;
+
+	ring->desc_cb = kcalloc(ring->desc_num, sizeof(ring->desc_cb[0]),
+				GFP_KERNEL);
+	if (!ring->desc_cb) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = hns3_alloc_desc(ring);
+	if (ret)
+		goto out_with_desc_cb;
+
+	if (!HNAE3_IS_TX_RING(ring)) {
+		ret = hns3_alloc_ring_buffers(ring);
+		if (ret)
+			goto out_with_desc;
+	}
+
+	return 0;
+
+out_with_desc:
+	hns3_free_desc(ring);
+out_with_desc_cb:
+	kfree(ring->desc_cb);
+	ring->desc_cb = NULL;
+out:
+	return ret;
+}
+
+static void hns3_fini_ring(struct hns3_enet_ring *ring)
+{
+	hns3_free_desc(ring);
+	kfree(ring->desc_cb);
+	ring->desc_cb = NULL;
+	ring->next_to_clean = 0;
+	ring->next_to_use = 0;
+}
+
+int hns3_buf_size2type(u32 buf_size)
+{
+	int bd_size_type;
+
+	switch (buf_size) {
+	case 512:
+		bd_size_type = HNS3_BD_SIZE_512_TYPE;
+		break;
+	case 1024:
+		bd_size_type = HNS3_BD_SIZE_1024_TYPE;
+		break;
+	case 2048:
+		bd_size_type = HNS3_BD_SIZE_2048_TYPE;
+		break;
+	case 4096:
+		bd_size_type = HNS3_BD_SIZE_4096_TYPE;
+		break;
+	default:
+		bd_size_type = HNS3_BD_SIZE_2048_TYPE;
+	}
+
+	return bd_size_type;
+}
+
+static void hns3_init_ring_hw(struct hns3_enet_ring *ring)
+{
+	dma_addr_t dma = ring->desc_dma_addr;
+	struct hnae3_queue *q = ring->tqp;
+
+	if (!HNAE3_IS_TX_RING(ring)) {
+		hns3_write_dev(q, HNS3_RING_RX_RING_BASEADDR_L_REG,
+			       (u32)dma);
+		hns3_write_dev(q, HNS3_RING_RX_RING_BASEADDR_H_REG,
+			       (u32)((dma >> 31) >> 1));
+
+		hns3_write_dev(q, HNS3_RING_RX_RING_BD_LEN_REG,
+			       hns3_buf_size2type(ring->buf_size));
+		hns3_write_dev(q, HNS3_RING_RX_RING_BD_NUM_REG,
+			       ring->desc_num / 8 - 1);
+
+	} else {
+		hns3_write_dev(q, HNS3_RING_TX_RING_BASEADDR_L_REG,
+			       (u32)dma);
+		hns3_write_dev(q, HNS3_RING_TX_RING_BASEADDR_H_REG,
+			       (u32)((dma >> 31) >> 1));
+
+		hns3_write_dev(q, HNS3_RING_TX_RING_BD_LEN_REG,
+			       hns3_buf_size2type(ring->buf_size));
+		hns3_write_dev(q, HNS3_RING_TX_RING_BD_NUM_REG,
+			       ring->desc_num / 8 - 1);
+	}
+}
+
+static int hns3_init_all_ring(struct hns3_nic_priv *priv)
+{
+	struct hnae3_handle *h = priv->ae_handle;
+	int ring_num = h->kinfo.num_tqps * 2;
+	int i, j;
+	int ret;
+
+	for (i = 0; i < ring_num; i++) {
+		ret = hns3_alloc_ring_memory(priv->ring_data[i].ring);
+		if (ret) {
+			dev_err(priv->dev,
+				"Alloc ring memory fail! ret=%d\n", ret);
+			goto out_when_alloc_ring_memory;
+		}
+
+		hns3_init_ring_hw(priv->ring_data[i].ring);
+	}
+
+	return 0;
+
+out_when_alloc_ring_memory:
+	for (j = i - 1; j >= 0; j--)
+		hns3_fini_ring(priv->ring_data[i].ring);
+
+	return -ENOMEM;
+}
+
+static int hns3_uninit_all_ring(struct hns3_nic_priv *priv)
+{
+	struct hnae3_handle *h = priv->ae_handle;
+	int i;
+
+	for (i = 0; i < h->kinfo.num_tqps; i++) {
+		if (h->ae_algo->ops->reset_queue)
+			h->ae_algo->ops->reset_queue(h, i);
+
+		hns3_fini_ring(priv->ring_data[i].ring);
+		hns3_fini_ring(priv->ring_data[i + h->kinfo.num_tqps].ring);
+	}
+
+	return 0;
+}
+
+/* Set mac addr if it is configed. or leave it to the AE driver */
+static void hns3_init_mac_addr(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	u8 mac_addr_temp[ETH_ALEN];
+
+	if (h->ae_algo->ops->get_mac_addr) {
+		h->ae_algo->ops->get_mac_addr(h, mac_addr_temp);
+		ether_addr_copy(ndev->dev_addr, mac_addr_temp);
+	}
+
+	/* Check if the MAC address is valid, if not get a random one */
+	if (!is_valid_ether_addr(ndev->dev_addr)) {
+		eth_hw_addr_random(ndev);
+		dev_warn(priv->dev, "using random MAC address %pM\n",
+			 ndev->dev_addr);
+		/* Also copy this new MAC address into hdev */
+		if (h->ae_algo->ops->set_mac_addr)
+			h->ae_algo->ops->set_mac_addr(h, ndev->dev_addr);
+	}
+}
+
+static void hns3_nic_set_priv_ops(struct net_device *netdev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+
+	if ((netdev->features & NETIF_F_TSO) ||
+	    (netdev->features & NETIF_F_TSO6)) {
+		priv->ops.fill_desc = hns3_fill_desc_tso;
+		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso;
+	} else {
+		priv->ops.fill_desc = hns3_fill_desc;
+		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx;
+	}
+}
+
+static int hns3_client_init(struct hnae3_handle *handle)
+{
+	struct pci_dev *pdev = handle->pdev;
+	struct hns3_nic_priv *priv;
+	struct net_device *ndev;
+	int ret;
+
+	ndev = alloc_etherdev_mq(sizeof(struct hns3_nic_priv),
+				 handle->kinfo.num_tqps);
+	if (!ndev)
+		return -ENOMEM;
+
+	priv = netdev_priv(ndev);
+	priv->dev = &pdev->dev;
+	priv->netdev = ndev;
+	priv->ae_handle = handle;
+
+	handle->kinfo.netdev = ndev;
+	handle->priv = (void *)priv;
+
+	hns3_init_mac_addr(ndev);
+
+	hns3_set_default_feature(ndev);
+
+	ndev->watchdog_timeo = HNS3_TX_TIMEOUT;
+	ndev->priv_flags |= IFF_UNICAST_FLT;
+	ndev->netdev_ops = &hns3_nic_netdev_ops;
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+	hns3_ethtool_set_ops(ndev);
+	hns3_nic_set_priv_ops(ndev);
+
+	/* Carrier off reporting is important to ethtool even BEFORE open */
+	netif_carrier_off(ndev);
+
+	ret = hns3_get_ring_config(priv);
+	if (ret) {
+		ret = -ENOMEM;
+		goto out_get_ring_cfg;
+	}
+
+	ret = hns3_nic_init_vector_data(priv);
+	if (ret) {
+		ret = -ENOMEM;
+		goto out_init_vector_data;
+	}
+
+	ret = hns3_init_all_ring(priv);
+	if (ret) {
+		ret = -ENOMEM;
+		goto out_init_ring_data;
+	}
+
+	ret = register_netdev(ndev);
+	if (ret) {
+		dev_err(priv->dev, "probe register netdev fail!\n");
+		goto out_reg_ndev_fail;
+	}
+
+	return ret;
+
+out_reg_ndev_fail:
+out_init_ring_data:
+	(void)hns3_nic_uninit_vector_data(priv);
+	priv->ring_data = NULL;
+out_init_vector_data:
+out_get_ring_cfg:
+	priv->ae_handle = NULL;
+	free_netdev(ndev);
+	return ret;
+}
+
+static void hns3_client_uninit(struct hnae3_handle *handle, bool reset)
+{
+	struct net_device *ndev = handle->kinfo.netdev;
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	int ret;
+
+	if (ndev->reg_state != NETREG_UNINITIALIZED)
+		unregister_netdev(ndev);
+
+	ret = hns3_nic_uninit_vector_data(priv);
+	if (ret)
+		netdev_err(ndev, "uninit vector error\n");
+
+	ret = hns3_uninit_all_ring(priv);
+	if (ret)
+		netdev_err(ndev, "uninit ring error\n");
+
+	priv->ring_data = NULL;
+
+	free_netdev(ndev);
+}
+
+static void hns3_link_status_change(struct hnae3_handle *handle, bool linkup)
+{
+	struct net_device *ndev = handle->kinfo.netdev;
+
+	if (!ndev)
+		return;
+
+	if (linkup) {
+		netif_carrier_on(ndev);
+		netif_tx_wake_all_queues(ndev);
+		netdev_info(ndev, "link up\n");
+	} else {
+		netif_carrier_off(ndev);
+		netif_tx_stop_all_queues(ndev);
+		netdev_info(ndev, "link down\n");
+	}
+}
+
+struct hnae3_client_ops client_ops = {
+	.init_instance = hns3_client_init,
+	.uninit_instance = hns3_client_uninit,
+	.link_status_change = hns3_link_status_change,
+};
+
+/* hns3_init_module - Driver registration routine
+ * hns3_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ */
+static int __init hns3_init_module(void)
+{
+	struct hnae3_client *client;
+	int ret;
+
+	pr_info("%s: %s - version\n", hns3_driver_name, hns3_driver_string);
+	pr_info("%s: %s\n", hns3_driver_name, hns3_copyright);
+
+	client = kzalloc(sizeof(*client), GFP_KERNEL);
+	if (!client) {
+		ret = -ENOMEM;
+		goto err_client_alloc;
+	}
+
+	client->type = HNAE3_CLIENT_KNIC;
+	snprintf(client->name, HNAE3_CLIENT_NAME_LENGTH - 1, "%s",
+		 hns3_driver_name);
+
+	client->ops = &client_ops;
+
+	ret = hnae3_register_client(client);
+	if (ret)
+		return ret;
+
+	return pci_register_driver(&hns3_driver);
+
+err_client_alloc:
+	return ret;
+}
+module_init(hns3_init_module);
+
+/* hns3_exit_module - Driver exit cleanup routine
+ * hns3_exit_module is called just before the driver is removed
+ * from memory.
+ */
+static void __exit hns3_exit_module(void)
+{
+	pci_unregister_driver(&hns3_driver);
+}
+module_exit(hns3_exit_module);
+
+MODULE_DESCRIPTION("HNS3: Hisilicon Ethernet Driver");
+MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hns-nic");
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.h
new file mode 100644
index 0000000..5b45f03
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.h
@@ -0,0 +1,585 @@ 
+/*
+ * Copyright (c) 2016 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __HNS3_ENET_H
+#define __HNS3_ENET_H
+
+#include "hnae3.h"
+
+enum hns3_nic_state {
+	HNS3_NIC_STATE_TESTING,
+	HNS3_NIC_STATE_RESETTING,
+	HNS3_NIC_STATE_REINITING,
+	HNS3_NIC_STATE_DOWN,
+	HNS3_NIC_STATE_DISABLED,
+	HNS3_NIC_STATE_REMOVING,
+	HNS3_NIC_STATE_SERVICE_INITED,
+	HNS3_NIC_STATE_SERVICE_SCHED,
+	HNS3_NIC_STATE2_RESET_REQUESTED,
+	HNS3_NIC_STATE_MAX
+};
+
+#define HNS3_RING_RX_RING_BASEADDR_L_REG	0x00000
+#define HNS3_RING_RX_RING_BASEADDR_H_REG	0x00004
+#define HNS3_RING_RX_RING_BD_NUM_REG		0x00008
+#define HNS3_RING_RX_RING_BD_LEN_REG		0x0000C
+#define HNS3_RING_RX_RING_TAIL_REG		0x00018
+#define HNS3_RING_RX_RING_HEAD_REG		0x0001C
+#define HNS3_RING_RX_RING_FBDNUM_REG		0x00020
+#define HNS3_RING_RX_RING_PKTNUM_RECORD_REG	0x0002C
+
+#define HNS3_RING_TX_RING_BASEADDR_L_REG	0x00040
+#define HNS3_RING_TX_RING_BASEADDR_H_REG	0x00044
+#define HNS3_RING_TX_RING_BD_NUM_REG		0x00048
+#define HNS3_RING_TX_RING_BD_LEN_REG		0x0004C
+#define HNS3_RING_TX_RING_TAIL_REG		0x00058
+#define HNS3_RING_TX_RING_HEAD_REG		0x0005C
+#define HNS3_RING_TX_RING_FBDNUM_REG		0x00060
+#define HNS3_RING_TX_RING_OFFSET_REG		0x00064
+#define HNS3_RING_TX_RING_PKTNUM_RECORD_REG	0x0006C
+
+#define HNS3_RING_PREFETCH_EN_REG		0x0007C
+#define HNS3_RING_CFG_VF_NUM_REG		0x00080
+#define HNS3_RING_ASID_REG			0x0008C
+#define HNS3_RING_RX_VM_REG			0x00090
+#define HNS3_RING_T0_BE_RST			0x00094
+#define HNS3_RING_COULD_BE_RST			0x00098
+#define HNS3_RING_WRR_WEIGHT_REG		0x0009c
+
+#define HNS3_RING_INTMSK_RXWL_REG		0x000A0
+#define HNS3_RING_INTSTS_RX_RING_REG		0x000A4
+#define HNS3_RX_RING_INT_STS_REG		0x000A8
+#define HNS3_RING_INTMSK_TXWL_REG		0x000AC
+#define HNS3_RING_INTSTS_TX_RING_REG		0x000B0
+#define HNS3_TX_RING_INT_STS_REG		0x000B4
+#define HNS3_RING_INTMSK_RX_OVERTIME_REG	0x000B8
+#define HNS3_RING_INTSTS_RX_OVERTIME_REG	0x000BC
+#define HNS3_RING_INTMSK_TX_OVERTIME_REG	0x000C4
+#define HNS3_RING_INTSTS_TX_OVERTIME_REG	0x000C8
+
+#define HNS3_RING_MB_CTRL_REG			0x00100
+#define HNS3_RING_MB_DATA_BASE_REG		0x00200
+
+#define HNS3_TX_REG_OFFSET			0x40
+
+#define HNS3_RX_HEAD_SIZE			256
+
+#define HNS3_TX_TIMEOUT (5 * HZ)
+#define HNS3_RING_NAME_LEN			16
+#define HNS3_BUFFER_SIZE_2048			2048
+#define HNS3_RING_MAX_PENDING			32768
+
+#define HNS3_BD_SIZE_512_TYPE			0
+#define HNS3_BD_SIZE_1024_TYPE			1
+#define HNS3_BD_SIZE_2048_TYPE			2
+#define HNS3_BD_SIZE_4096_TYPE			3
+
+#define HNS3_RX_FLAG_VLAN_PRESENT		0x1
+#define HNS3_RX_FLAG_L3ID_IPV4			0x0
+#define HNS3_RX_FLAG_L3ID_IPV6			0x1
+#define HNS3_RX_FLAG_L4ID_UDP			0x0
+#define HNS3_RX_FLAG_L4ID_TCP			0x1
+
+#define HNS3_RXD_DMAC_S				0
+#define HNS3_RXD_DMAC_M				(0x3 << HNS3_RXD_DMAC_S)
+#define HNS3_RXD_VLAN_S				2
+#define HNS3_RXD_VLAN_M				(0x3 << HNS3_RXD_VLAN_S)
+#define HNS3_RXD_L3ID_S				4
+#define HNS3_RXD_L3ID_M				(0xf << HNS3_RXD_L3ID_S)
+#define HNS3_RXD_L4ID_S				8
+#define HNS3_RXD_L4ID_M				(0xf << HNS3_RXD_L4ID_S)
+#define HNS3_RXD_FRAG_B				12
+#define HNS3_RXD_L2E_B				16
+#define HNS3_RXD_L3E_B				17
+#define HNS3_RXD_L4E_B				18
+#define HNS3_RXD_TRUNCAT_B			19
+#define HNS3_RXD_HOI_B				20
+#define HNS3_RXD_DOI_B				21
+#define HNS3_RXD_OL3E_B				22
+#define HNS3_RXD_OL4E_B				23
+
+#define HNS3_RXD_ODMAC_S			0
+#define HNS3_RXD_ODMAC_M			(0x3 << HNS3_RXD_ODMAC_S)
+#define HNS3_RXD_OVLAN_S			2
+#define HNS3_RXD_OVLAN_M			(0x3 << HNS3_RXD_OVLAN_S)
+#define HNS3_RXD_OL3ID_S			4
+#define HNS3_RXD_OL3ID_M			(0xf << HNS3_RXD_OL3ID_S)
+#define HNS3_RXD_OL4ID_S			8
+#define HNS3_RXD_OL4ID_M			(0xf << HNS3_RXD_OL4ID_S)
+#define HNS3_RXD_FBHI_S				12
+#define HNS3_RXD_FBHI_M				(0x3 << HNS3_RXD_FBHI_S)
+#define HNS3_RXD_FBLI_S				14
+#define HNS3_RXD_FBLI_M				(0x3 << HNS3_RXD_FBLI_S)
+
+#define HNS3_RXD_BDTYPE_S			0
+#define HNS3_RXD_BDTYPE_M			(0xf << HNS3_RXD_BDTYPE_S)
+#define HNS3_RXD_VLD_B				4
+#define HNS3_RXD_UDP0_B				5
+#define HNS3_RXD_EXTEND_B			7
+#define HNS3_RXD_FE_B				8
+#define HNS3_RXD_LUM_B				9
+#define HNS3_RXD_CRCP_B				10
+#define HNS3_RXD_L3L4P_B			11
+#define HNS3_RXD_TSIND_S			12
+#define HNS3_RXD_TSIND_M			(0x7 << HNS3_RXD_TSIND_S)
+#define HNS3_RXD_LKBK_B				15
+#define HNS3_RXD_HDL_S				16
+#define HNS3_RXD_HDL_M				(0x7ff << HNS3_RXD_HDL_S)
+#define HNS3_RXD_HSIND_B			31
+
+#define HNS3_TXD_L3T_S				0
+#define HNS3_TXD_L3T_M				(0x3 << HNS3_TXD_L3T_S)
+#define HNS3_TXD_L4T_S				2
+#define HNS3_TXD_L4T_M				(0x3 << HNS3_TXD_L4T_S)
+#define HNS3_TXD_L3CS_B				4
+#define HNS3_TXD_L4CS_B				5
+#define HNS3_TXD_VLAN_B				6
+#define HNS3_TXD_TSO_B				7
+
+#define HNS3_TXD_L2LEN_S			8
+#define HNS3_TXD_L2LEN_M			(0xff << HNS3_TXD_L2LEN_S)
+#define HNS3_TXD_L3LEN_S			16
+#define HNS3_TXD_L3LEN_M			(0xff << HNS3_TXD_L3LEN_S)
+#define HNS3_TXD_L4LEN_S			24
+#define HNS3_TXD_L4LEN_M			(0xff << HNS3_TXD_L4LEN_S)
+
+#define HNS3_TXD_OL3T_S				0
+#define HNS3_TXD_OL3T_M				(0x3 << HNS3_TXD_OL3T_S)
+#define HNS3_TXD_OVLAN_B			2
+#define HNS3_TXD_MACSEC_B			3
+#define HNS3_TXD_TUNTYPE_S			4
+#define HNS3_TXD_TUNTYPE_M			(0xf << HNS3_TXD_TUNTYPE_S)
+
+#define HNS3_TXD_BDTYPE_S			0
+#define HNS3_TXD_BDTYPE_M			(0xf << HNS3_TXD_BDTYPE_S)
+#define HNS3_TXD_FE_B				4
+#define HNS3_TXD_SC_S				5
+#define HNS3_TXD_SC_M				(0x3 << HNS3_TXD_SC_S)
+#define HNS3_TXD_EXTEND_B			7
+#define HNS3_TXD_VLD_B				8
+#define HNS3_TXD_RI_B				9
+#define HNS3_TXD_RA_B				10
+#define HNS3_TXD_TSYN_B				11
+#define HNS3_TXD_DECTTL_S			12
+#define HNS3_TXD_DECTTL_M			(0xf << HNS3_TXD_DECTTL_S)
+
+#define HNS3_TXD_MSS_S				0
+#define HNS3_TXD_MSS_M				(0x3fff << HNS3_TXD_MSS_S)
+
+#define HNS3_VEVTOR_TX_IRQ			BIT_ULL(0)
+#define HNS3_VEVTOR_RX_IRQ			BIT_ULL(1)
+
+#define HNS3_VEVTOR_NOT_INITED			0
+#define HNS3_VEVTOR_INITED			1
+
+#define HNS3_MAX_BD_SIZE			65535
+#define HNS3_MAX_BD_PER_FRAG			8
+
+#define HNS3_VECTOR_GL0_OFFSET			0x100
+#define HNS3_VECTOR_GL1_OFFSET			0x200
+#define HNS3_VECTOR_GL2_OFFSET			0x300
+#define HNS3_VECTOR_RL_OFFSET			0x900
+#define HNS3_VECTOR_RL_EN_B			6
+
+enum hns3_pkt_l3t_type {
+	HNS3_L3T_NONE,
+	HNS3_L3T_IPV6,
+	HNS3_L3T_IPV4,
+	HNS3_L3T_RESERVED
+};
+
+enum hns3_pkt_l4t_type {
+	HNS3_L4T_UNKNOWN,
+	HNS3_L4T_TCP,
+	HNS3_L4T_UDP,
+	HNS3_L4T_SCTP
+};
+
+enum hns3_pkt_ol3t_type {
+	HNS3_OL3T_NONE,
+	HNS3_OL3T_IPV6,
+	HNS3_OL3T_IPV4_NO_CSUM,
+	HNS3_OL3T_IPV4_CSUM
+};
+
+enum hns3_pkt_tun_type {
+	HNS3_TUN_NONE,
+	HNS3_TUN_MAC_IN_UDP,
+	HNS3_TUN_NVGRE,
+	HNS3_TUN_OTHER
+};
+
+/* hardware spec ring buffer format */
+struct __packed hns3_desc {
+	__le64 addr;
+	union {
+		struct {
+			__le16 vlan_tag;
+			__le16 send_size;
+			union {
+				__le32 type_cs_vlan_tso_len;
+				struct {
+					__u8 type_cs_vlan_tso;
+					__u8 l2_len;
+					__u8 l3_len;
+					__u8 l4_len;
+				};
+			};
+			__le16 outer_vlan_tag;
+			__le16 tv;
+
+		union {
+			__le32 ol_type_vlan_len_msec;
+			struct {
+				__u8 ol_type_vlan_msec;
+				__u8 ol2_len;
+				__u8 ol3_len;
+				__u8 ol4_len;
+			};
+		};
+
+			__le32 paylen;
+			__le16 bdtp_fe_sc_vld_ra_ri;
+			__le16 mss;
+		} tx;
+
+		struct {
+			__le32 l234_info;
+			__le16 pkt_len;
+			__le16 size;
+
+			__le32 rss_hash;
+			__le16 fd_id;
+			__le16 vlan_tag;
+
+			union {
+				__le32 ol_info;
+				struct {
+					__le16 o_dm_vlan_id_fb;
+					__le16 ot_vlan_tag;
+				};
+			};
+
+			__le32 bd_base_info;
+		} rx;
+	};
+};
+
+struct hns3_desc_cb {
+	dma_addr_t dma; /* dma address of this desc */
+	void *buf;      /* cpu addr for a desc */
+
+	/* priv data for the desc, e.g. skb when use with ip stack*/
+	void *priv;
+	u16 page_offset;
+	u16 reuse_flag;
+
+	u16 length;     /* length of the buffer */
+
+       /* desc type, used by the ring user to mark the type of the priv data */
+	u16 type;
+};
+
+enum hns3_pkt_l3type {
+	HNS3_L3_TYPE_IPV4,
+	HNS3_L3_TYPE_IPV6,
+	HNS3_L3_TYPE_ARP,
+	HNS3_L3_TYPE_RARP,
+	HNS3_L3_TYPE_IPV4_OPT,
+	HNS3_L3_TYPE_IPV6_EXT,
+	HNS3_L3_TYPE_LLDP,
+	HNS3_L3_TYPE_BPDU,
+	HNS3_L3_TYPE_MAC_PAUSE,
+	HNS3_L3_TYPE_PFC_PAUSE,/* 0x9*/
+
+	/* reserved for 0xA~0xB*/
+
+	HNS3_L3_TYPE_CNM = 0xc,
+
+	/* reserved for 0xD~0xE*/
+
+	HNS3_L3_TYPE_PARSE_FAIL	= 0xf /* must be last */
+};
+
+enum hns3_pkt_l4type {
+	HNS3_L4_TYPE_UDP,
+	HNS3_L4_TYPE_TCP,
+	HNS3_L4_TYPE_GRE,
+	HNS3_L4_TYPE_SCTP,
+	HNS3_L4_TYPE_IGMP,
+	HNS3_L4_TYPE_ICMP,
+
+	/* reserved for 0x6~0xE */
+
+	HNS3_L4_TYPE_PARSE_FAIL	= 0xf /* must be last */
+};
+
+enum hns3_pkt_ol3type {
+	HNS3_OL3_TYPE_IPV4 = 0,
+	HNS3_OL3_TYPE_IPV6,
+	/* reserved for 0x2~0x3 */
+	HNS3_OL3_TYPE_IPV4_OPT = 4,
+	HNS3_OL3_TYPE_IPV6_EXT,
+
+	/* reserved for 0x6~0xE*/
+
+	HNS3_OL3_TYPE_PARSE_FAIL = 0xf	/* must be last */
+};
+
+enum hns3_pkt_ol4type {
+	HNS3_OL4_TYPE_NO_TUN,
+	HNS3_OL4_TYPE_MAC_IN_UDP,
+	HNS3_OL4_TYPE_NVGRE,
+	HNS3_OL4_TYPE_UNKNOWN
+};
+
+struct ring_stats {
+	u64 io_err_cnt;
+	u64 sw_err_cnt;
+	u64 seg_pkt_cnt;
+	union {
+		struct {
+			u64 tx_pkts;
+			u64 tx_bytes;
+			u64 tx_err_cnt;
+			u64 restart_queue;
+			u64 tx_busy;
+		};
+		struct {
+			u64 rx_pkts;
+			u64 rx_bytes;
+			u64 rx_err_cnt;
+			u64 reuse_pg_cnt;
+			u64 err_pkt_len;
+			u64 non_vld_descs;
+			u64 err_bd_num;
+			u64 l2_err;
+			u64 l3l4_csum_err;
+		};
+	};
+};
+
+struct hns3_enet_ring {
+	u8 __iomem *io_base; /* base io address for the ring */
+	struct hns3_desc *desc; /* dma map address space */
+	struct hns3_desc_cb *desc_cb;
+	struct hns3_enet_ring *next;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	struct hnae3_queue *tqp;
+	char ring_name[HNS3_RING_NAME_LEN];
+	struct device *dev; /* will be used for DMA mapping of descriptors */
+
+	/* statistic */
+	struct ring_stats stats;
+
+	dma_addr_t desc_dma_addr;
+	u32 buf_size;       /* size for hnae_desc->addr, preset by AE */
+	u16 desc_num;       /* total number of desc */
+	u16 max_desc_num_per_pkt;
+	u16 max_raw_data_sz_per_desc;
+	u16 max_pkt_size;
+	int next_to_use;    /* idx of next spare desc */
+
+	/* idx of lastest sent desc, the ring is empty when equal to
+	 * next_to_use
+	 */
+	int next_to_clean;
+
+	u32 flag;          /* ring attribute */
+	int irq_init_flag;
+
+	int numa_node;
+	cpumask_t affinity_mask;
+};
+
+struct hns_queue;
+
+struct hns3_nic_ring_data {
+	struct hns3_enet_ring *ring;
+	struct napi_struct napi;
+	int queue_index;
+	int (*poll_one)(struct hns3_nic_ring_data *, int, void *);
+	void (*ex_process)(struct hns3_nic_ring_data *, struct sk_buff *);
+	void (*fini_process)(struct hns3_nic_ring_data *);
+};
+
+struct hns3_nic_ops {
+	int (*fill_desc)(struct hns3_enet_ring *ring, void *priv,
+			 int size, dma_addr_t dma, int frag_end,
+			 enum hns_desc_type type);
+	int (*maybe_stop_tx)(struct sk_buff **out_skb,
+			     int *bnum, struct hns3_enet_ring *ring);
+	void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum);
+};
+
+enum hns3_flow_level_range {
+	HNS3_FLOW_LOW = 0,
+	HNS3_FLOW_MID = 1,
+	HNS3_FLOW_HIGH = 2,
+	HNS3_FLOW_ULTRA = 3,
+};
+
+enum hns3_link_mode_bits {
+	HNS3_LM_FIBRE_BIT = BIT(0),
+	HNS3_LM_AUTONEG_BIT = BIT(1),
+	HNS3_LM_TP_BIT = BIT(2),
+	HNS3_LM_PAUSE_BIT = BIT(3),
+	HNS3_LM_BACKPLANE_BIT = BIT(4),
+	HNS3_LM_10BASET_HALF_BIT = BIT(5),
+	HNS3_LM_10BASET_FULL_BIT = BIT(6),
+	HNS3_LM_100BASET_HALF_BIT = BIT(7),
+	HNS3_LM_100BASET_FULL_BIT = BIT(8),
+	HNS3_LM_1000BASET_FULL_BIT = BIT(9),
+	HNS3_LM_10000BASEKR_FULL_BIT = BIT(10),
+	HNS3_LM_25000BASEKR_FULL_BIT = BIT(11),
+	HNS3_LM_40000BASELR4_FULL_BIT = BIT(12),
+	HNS3_LM_50000BASEKR2_FULL_BIT = BIT(13),
+	HNS3_LM_100000BASEKR4_FULL_BIT = BIT(14),
+	HNS3_LM_COUNT = 15
+};
+
+#define HNS3_INT_GL_50K		0x000A	/* To be determined */
+#define HNS3_INT_GL_20K		0x0019	/* To be determined */
+#define HNS3_INT_GL_18K		0x001B	/* To be determined */
+#define HNS3_INT_GL_8K		0x003E	/* To be determined */
+
+struct hns3_enet_ring_group {
+	/* array of pointers to rings */
+	struct hns3_enet_ring *ring;
+	u64 total_bytes;	/* total bytes processed this group */
+	u64 total_packets;	/* total packets processed this group */
+	u16 count;
+	enum hns3_flow_level_range flow_level;
+	u16 int_gl;
+};
+
+struct hns3_enet_tqp_vector {
+	struct hnae3_handle *handle;
+	u8 __iomem *mask_addr;
+	int vector_irq;
+	int irq_init_flag;
+
+	u16 idx;		/* index in the TQP vector array per handle. */
+
+	struct napi_struct napi;
+
+	struct hns3_enet_ring_group rx_group;
+	struct hns3_enet_ring_group tx_group;
+
+	u16 num_tqps;	/* total number of tqps in TQP vector */
+
+	cpumask_t affinity_mask;
+	char name[HNAE3_INT_NAME_LEN];
+
+	/* when 0 should adjust interrupt coalesce parameter */
+	u8 int_adapt_down;
+} ____cacheline_internodealigned_in_smp;
+
+enum hns3_udp_tnl_type {
+	HNS3_UDP_TNL_VXLAN,
+	HNS3_UDP_TNL_GENEVE,
+	HNS3_UDP_TNL_MAX,
+};
+
+struct hns3_udp_tunnel {
+	u16 dst_port;
+	int used;
+};
+
+struct hns3_nic_priv {
+	const struct fwnode_handle      *fwnode;
+	u32 enet_ver;
+	u32 port_id;
+	struct net_device *netdev;
+	struct device *dev;
+	struct hnae3_handle *ae_handle;
+	struct hns3_nic_ops ops;
+
+	/**
+	 * the cb for nic to manage the ring buffer, the first half of the
+	 * array is for tx_ring and vice versa for the second half
+	 */
+	struct hns3_nic_ring_data *ring_data;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	u16 vector_num;
+
+	/* The most recently read link state */
+	int link;
+	u64 tx_timeout_count;
+
+	unsigned long state;
+
+	struct timer_list service_timer;
+
+	struct work_struct service_task;
+
+	struct notifier_block notifier_block;
+	/* Vxlan/Geneve information */
+	struct hns3_udp_tunnel udp_tnl[HNS3_UDP_TNL_MAX];
+};
+
+/* the distance between [begin, end) in a ring buffer
+ * note: there is a unuse slot between the begin and the end
+ */
+static inline int ring_dist(struct hns3_enet_ring *ring, int begin, int end)
+{
+	return (end - begin + ring->desc_num) % ring->desc_num;
+}
+
+static inline int ring_space(struct hns3_enet_ring *ring)
+{
+	return ring->desc_num -
+		ring_dist(ring, ring->next_to_clean, ring->next_to_use) - 1;
+}
+
+static inline int is_ring_empty(struct hns3_enet_ring *ring)
+{
+	return ring->next_to_use == ring->next_to_clean;
+}
+
+static inline void hns3_write_reg(void __iomem *base, u32 reg, u32 value)
+{
+	u8 __iomem *reg_addr = READ_ONCE(base);
+
+	writel(value, reg_addr + reg);
+}
+
+#define hns3_write_dev(a, reg, value) \
+	hns3_write_reg((a)->io_base, (reg), (value))
+
+#define hnae_queue_xmit(tqp, buf_num) writel_relaxed(buf_num, \
+		(tqp)->io_base + HNS3_RING_TX_RING_TAIL_REG)
+
+#define ring_to_dev(ring) (&(ring)->tqp->handle->pdev->dev)
+
+#define ring_to_dma_dir(ring) (HNAE3_IS_TX_RING(ring) ? \
+	DMA_TO_DEVICE : DMA_FROM_DEVICE)
+
+#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
+
+#define hnae_buf_size(_ring) ((_ring)->buf_size)
+#define hnae_page_order(_ring) (get_order(hnae_buf_size(_ring)))
+#define hnae_page_size(_ring) (PAGE_SIZE << hnae_page_order(_ring))
+
+/* iterator for handling rings in ring group */
+#define hns3_for_each_ring(pos, head) \
+	for (pos = (head).ring; pos != NULL; pos = pos->next)
+
+void hns3_ethtool_set_ops(struct net_device *ndev);
+
+int hns3_nic_net_xmit_hw(
+				struct net_device *ndev,
+				struct sk_buff *skb,
+				struct hns3_nic_ring_data *ring_data);
+int hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget);
+int hns3_clean_rx_ring_ex(
+				struct hns3_enet_ring *ring,
+				struct sk_buff **skb_ex,
+				int budget);
+#endif