net: hns3: Unified HNS3 {VF|PF} Ethernet Driver for hip08 SoC

Most of the NAPI handling interface, skb buffer management,
management of the RX/TX descriptors, ethool interface etc.
has quite a bit of code which is common to VF and PF driver.

This patch makes the exisitng PF's HNS3 ENET driver as the
common ENET driver for both Virtual & Physical Function. This
will help in reduction of redundancy and better management of
code.

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 3214 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
deleted file mode 100644
index 59415090ff0f..000000000000
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
+++ /dev/null
@@ -1,3214 +0,0 @@
-/*
- * 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 <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 <linux/vermagic.h>
-#include <net/gre.h>
-#include <net/pkt_cls.h>
-#include <net/vxlan.h>
-
-#include "hnae3.h"
-#include "hns3_enet.h"
-
-static const char hns3_driver_name[] = "hns3";
-const char hns3_driver_version[] = VERMAGIC_STRING;
-static const char hns3_driver_string[] =
-			"Hisilicon Ethernet Network Driver for Hip08 Family";
-static const char hns3_copyright[] = "Copyright (c) 2017 Huawei Corporation.";
-static struct hnae3_client client;
-
-/* 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),
-	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC),
-	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA),
-	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC),
-	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC),
-	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
-	/* required last entry */
-	{0, }
-};
-MODULE_DEVICE_TABLE(pci, hns3_pci_tbl);
-
-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 void hns3_nic_uninit_irq(struct hns3_nic_priv *priv)
-{
-	struct hns3_enet_tqp_vector *tqp_vectors;
-	unsigned int i;
-
-	for (i = 0; i < priv->vector_num; i++) {
-		tqp_vectors = &priv->tqp_vector[i];
-
-		if (tqp_vectors->irq_init_flag != HNS3_VECTOR_INITED)
-			continue;
-
-		/* release the irq resource */
-		free_irq(tqp_vectors->vector_irq, tqp_vectors);
-		tqp_vectors->irq_init_flag = HNS3_VECTOR_NOT_INITED;
-	}
-}
-
-static int hns3_nic_init_irq(struct hns3_nic_priv *priv)
-{
-	struct hns3_enet_tqp_vector *tqp_vectors;
-	int txrx_int_idx = 0;
-	int rx_int_idx = 0;
-	int tx_int_idx = 0;
-	unsigned int i;
-	int ret;
-
-	for (i = 0; i < priv->vector_num; i++) {
-		tqp_vectors = &priv->tqp_vector[i];
-
-		if (tqp_vectors->irq_init_flag == HNS3_VECTOR_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 = request_irq(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;
-		}
-
-		tqp_vectors->irq_init_flag = HNS3_VECTOR_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 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_coalesc_gl(struct hns3_enet_tqp_vector *tqp_vector,
-				       u32 gl_value)
-{
-	/* this defines the configuration for GL (Interrupt Gap Limiter)
-	 * GL defines inter interrupt gap.
-	 * GL and RL(Rate Limiter) are 2 ways to acheive interrupt coalescing
-	 */
-	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_coalesc_rl(struct hns3_enet_tqp_vector *tqp_vector,
-				       u32 rl_value)
-{
-	/* this defines the configuration for RL (Interrupt Rate Limiter).
-	 * Rl defines rate of interrupts i.e. number of interrupts-per-second
-	 * GL and RL(Rate Limiter) are 2 ways to acheive interrupt coalescing
-	 */
-	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)
-{
-	/* initialize the configuration for interrupt coalescing.
-	 * 1. GL (Interrupt Gap Limiter)
-	 * 2. RL (Interrupt Rate Limiter)
-	 */
-
-	/* 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_coalesc_gl(tqp_vector, HNS3_INT_GL_50K);
-	/* for now we are disabling Interrupt RL - we
-	 * will re-enable later
-	 */
-	hns3_set_vector_coalesc_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_set_real_num_queue(struct net_device *netdev)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	struct hnae3_knic_private_info *kinfo = &h->kinfo;
-	unsigned int queue_size = kinfo->rss_size * kinfo->num_tc;
-	int ret;
-
-	ret = netif_set_real_num_tx_queues(netdev, queue_size);
-	if (ret) {
-		netdev_err(netdev,
-			   "netif_set_real_num_tx_queues fail, ret=%d!\n",
-			   ret);
-		return ret;
-	}
-
-	ret = netif_set_real_num_rx_queues(netdev, queue_size);
-	if (ret) {
-		netdev_err(netdev,
-			   "netif_set_real_num_rx_queues fail, ret=%d!\n", ret);
-		return ret;
-	}
-
-	return 0;
-}
-
-static int hns3_nic_net_up(struct net_device *netdev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	struct hnae3_handle *h = priv->ae_handle;
-	int i, j;
-	int ret;
-
-	/* get irq resource for all vectors */
-	ret = hns3_nic_init_irq(priv);
-	if (ret) {
-		netdev_err(netdev, "hns init irq failed! ret=%d\n", ret);
-		return ret;
-	}
-
-	/* enable the vectors */
-	for (i = 0; i < priv->vector_num; i++)
-		hns3_vector_enable(&priv->tqp_vector[i]);
-
-	/* start the ae_dev */
-	ret = h->ae_algo->ops->start ? h->ae_algo->ops->start(h) : 0;
-	if (ret)
-		goto out_start_err;
-
-	return 0;
-
-out_start_err:
-	for (j = i - 1; j >= 0; j--)
-		hns3_vector_disable(&priv->tqp_vector[j]);
-
-	hns3_nic_uninit_irq(priv);
-
-	return ret;
-}
-
-static int hns3_nic_net_open(struct net_device *netdev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int ret;
-
-	netif_carrier_off(netdev);
-
-	ret = hns3_nic_set_real_num_queue(netdev);
-	if (ret)
-		return ret;
-
-	ret = hns3_nic_net_up(netdev);
-	if (ret) {
-		netdev_err(netdev,
-			   "hns net up fail, ret=%d!\n", ret);
-		return ret;
-	}
-
-	priv->last_reset_time = jiffies;
-	return 0;
-}
-
-static void hns3_nic_net_down(struct net_device *netdev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	const struct hnae3_ae_ops *ops;
-	int i;
-
-	/* stop ae_dev */
-	ops = priv->ae_handle->ae_algo->ops;
-	if (ops->stop)
-		ops->stop(priv->ae_handle);
-
-	/* disable vectors */
-	for (i = 0; i < priv->vector_num; i++)
-		hns3_vector_disable(&priv->tqp_vector[i]);
-
-	/* free irq resources */
-	hns3_nic_uninit_irq(priv);
-}
-
-static int hns3_nic_net_stop(struct net_device *netdev)
-{
-	netif_tx_stop_all_queues(netdev);
-	netif_carrier_off(netdev);
-
-	hns3_nic_net_down(netdev);
-
-	return 0;
-}
-
-static int hns3_nic_uc_sync(struct net_device *netdev,
-			    const unsigned char *addr)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-
-	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 hnae3_handle *h = hns3_get_handle(netdev);
-
-	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 hnae3_handle *h = hns3_get_handle(netdev);
-
-	if (h->ae_algo->ops->add_mc_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 hnae3_handle *h = hns3_get_handle(netdev);
-
-	if (h->ae_algo->ops->rm_mc_addr)
-		return h->ae_algo->ops->rm_mc_addr(h, addr);
-
-	return 0;
-}
-
-static void hns3_nic_set_rx_mode(struct net_device *netdev)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-
-	if (h->ae_algo->ops->set_promisc_mode) {
-		if (netdev->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(netdev, hns3_nic_uc_sync, hns3_nic_uc_unsync))
-		netdev_err(netdev, "sync uc address fail\n");
-	if (netdev->flags & IFF_MULTICAST)
-		if (__dev_mc_sync(netdev, hns3_nic_mc_sync, hns3_nic_mc_unsync))
-			netdev_err(netdev, "sync mc address fail\n");
-}
-
-static int hns3_set_tso(struct sk_buff *skb, u32 *paylen,
-			u16 *mss, u32 *type_cs_vlan_tso)
-{
-	u32 l4_offset, hdr_len;
-	union l3_hdr_info l3;
-	union l4_hdr_info l4;
-	u32 l4_paylen;
-	int ret;
-
-	if (!skb_is_gso(skb))
-		return 0;
-
-	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;
-}
-
-static int 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;
-	} else {
-		return -EINVAL;
-	}
-
-	*ol4_proto = l4_proto_tmp;
-
-	/* tunnel packet */
-	if (!skb->encapsulation) {
-		*il4_proto = 0;
-		return 0;
-	}
-
-	/* 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;
-
-	return 0;
-}
-
-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 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, 0);
-}
-
-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;
-
-	/* 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;
-
-	/* now, fill the descriptor */
-	desc->addr = cpu_to_le64(dma);
-	desc->tx.send_size = cpu_to_le16((u16)size);
-	hns3_set_txbd_baseinfo(&bdtp_fe_sc_vld_ra_ri, frag_end);
-	desc->tx.bdtp_fe_sc_vld_ra_ri = cpu_to_le16(bdtp_fe_sc_vld_ra_ri);
-
-	if (type == DESC_TYPE_SKB) {
-		skb = (struct sk_buff *)priv;
-		paylen = skb->len;
-
-		if (skb->ip_summed == CHECKSUM_PARTIAL) {
-			skb_reset_mac_len(skb);
-			protocol = skb->protocol;
-
-			/* vlan packet*/
-			if (protocol == htons(ETH_P_8021Q)) {
-				protocol = vlan_get_protocol(skb);
-				skb->protocol = protocol;
-			}
-			ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
-			if (ret)
-				return ret;
-			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_le32(paylen);
-		desc->tx.mss = cpu_to_le16(mss);
-	}
-
-	/* 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)
-{
-	unsigned int frag_buf_num;
-	unsigned int k;
-	int sizeoflast;
-	int ret;
-
-	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;
-
-	/* When the frag size is bigger than hardware, split this frag */
-	for (k = 0; k < frag_buf_num; k++) {
-		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;
-	}
-
-	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;
-}
-
-static void hns_nic_dma_unmap(struct hns3_enet_ring *ring, int next_to_use_orig)
-{
-	struct device *dev = ring_to_dev(ring);
-	unsigned int i;
-
-	for (i = 0; i < ring->desc_num; i++) {
-		/* check if this is where we started */
-		if (ring->next_to_use == next_to_use_orig)
-			break;
-
-		/* unmap the descriptor dma address */
-		if (ring->desc_cb[ring->next_to_use].type == DESC_TYPE_SKB)
-			dma_unmap_single(dev,
-					 ring->desc_cb[ring->next_to_use].dma,
-					ring->desc_cb[ring->next_to_use].length,
-					DMA_TO_DEVICE);
-		else
-			dma_unmap_page(dev,
-				       ring->desc_cb[ring->next_to_use].dma,
-				       ring->desc_cb[ring->next_to_use].length,
-				       DMA_TO_DEVICE);
-
-		/* rollback one */
-		ring_ptr_move_bw(ring, next_to_use);
-	}
-}
-
-netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	struct hns3_nic_ring_data *ring_data =
-		&tx_ring_data(priv, skb->queue_mapping);
-	struct hns3_enet_ring *ring = ring_data->ring;
-	struct device *dev = priv->dev;
-	struct netdev_queue *dev_queue;
-	struct skb_frag_struct *frag;
-	int next_to_use_head;
-	int next_to_use_frag;
-	dma_addr_t dma;
-	int buf_num;
-	int seg_num;
-	int size;
-	int ret;
-	int i;
-
-	/* Prefetch the data used later */
-	prefetch(skb->data);
-
-	switch (priv->ops.maybe_stop_tx(&skb, &buf_num, ring)) {
-	case -EBUSY:
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_busy++;
-		u64_stats_update_end(&ring->syncp);
-
-		goto out_net_tx_busy;
-	case -ENOMEM:
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
-		netdev_err(netdev, "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;
-	/* Fill the first part */
-	size = skb_headlen(skb);
-
-	next_to_use_head = ring->next_to_use;
-
-	dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
-	if (dma_mapping_error(dev, dma)) {
-		netdev_err(netdev, "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 head_dma_map_err;
-
-	next_to_use_frag = ring->next_to_use;
-	/* 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(netdev, "TX frag(%d) DMA map failed\n", i);
-			ring->stats.sw_err_cnt++;
-			goto frag_dma_map_err;
-		}
-		ret = priv->ops.fill_desc(ring, skb_frag_page(frag), size, dma,
-				    seg_num - 1 == i ? 1 : 0,
-				    DESC_TYPE_PAGE);
-
-		if (ret)
-			goto frag_dma_map_err;
-	}
-
-	/* Complete translate all packets */
-	dev_queue = netdev_get_tx_queue(netdev, 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);
-
-	return NETDEV_TX_OK;
-
-frag_dma_map_err:
-	hns_nic_dma_unmap(ring, next_to_use_frag);
-
-head_dma_map_err:
-	hns_nic_dma_unmap(ring, next_to_use_head);
-
-out_err_tx_ok:
-	dev_kfree_skb_any(skb);
-	return NETDEV_TX_OK;
-
-out_net_tx_busy:
-	netif_stop_subqueue(netdev, ring_data->queue_index);
-	smp_mb(); /* Commit all data before submit */
-
-	return NETDEV_TX_BUSY;
-}
-
-static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	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(netdev, "set_mac_address fail, ret=%d!\n", ret);
-		return ret;
-	}
-
-	ether_addr_copy(netdev->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 *netdev, struct rtnl_link_stats64 *stats)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int queue_num = priv->ae_handle->kinfo.num_tqps;
-	struct hns3_enet_ring *ring;
-	unsigned int start;
-	unsigned int idx;
-	u64 tx_bytes = 0;
-	u64 rx_bytes = 0;
-	u64 tx_pkts = 0;
-	u64 rx_pkts = 0;
-
-	for (idx = 0; idx < queue_num; idx++) {
-		/* fetch the tx stats */
-		ring = priv->ring_data[idx].ring;
-		do {
-			start = u64_stats_fetch_begin_irq(&ring->syncp);
-			tx_bytes += ring->stats.tx_bytes;
-			tx_pkts += ring->stats.tx_pkts;
-		} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
-
-		/* fetch the rx stats */
-		ring = priv->ring_data[idx + queue_num].ring;
-		do {
-			start = u64_stats_fetch_begin_irq(&ring->syncp);
-			rx_bytes += ring->stats.rx_bytes;
-			rx_pkts += ring->stats.rx_pkts;
-		} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
-	}
-
-	stats->tx_bytes = tx_bytes;
-	stats->tx_packets = tx_pkts;
-	stats->rx_bytes = rx_bytes;
-	stats->rx_packets = rx_pkts;
-
-	stats->rx_errors = netdev->stats.rx_errors;
-	stats->multicast = netdev->stats.multicast;
-	stats->rx_length_errors = netdev->stats.rx_length_errors;
-	stats->rx_crc_errors = netdev->stats.rx_crc_errors;
-	stats->rx_missed_errors = netdev->stats.rx_missed_errors;
-
-	stats->tx_errors = netdev->stats.tx_errors;
-	stats->rx_dropped = netdev->stats.rx_dropped;
-	stats->tx_dropped = netdev->stats.tx_dropped;
-	stats->collisions = netdev->stats.collisions;
-	stats->rx_over_errors = netdev->stats.rx_over_errors;
-	stats->rx_frame_errors = netdev->stats.rx_frame_errors;
-	stats->rx_fifo_errors = netdev->stats.rx_fifo_errors;
-	stats->tx_aborted_errors = netdev->stats.tx_aborted_errors;
-	stats->tx_carrier_errors = netdev->stats.tx_carrier_errors;
-	stats->tx_fifo_errors = netdev->stats.tx_fifo_errors;
-	stats->tx_heartbeat_errors = netdev->stats.tx_heartbeat_errors;
-	stats->tx_window_errors = netdev->stats.tx_window_errors;
-	stats->rx_compressed = netdev->stats.rx_compressed;
-	stats->tx_compressed = netdev->stats.tx_compressed;
-}
-
-static void hns3_add_tunnel_port(struct net_device *netdev, u16 port,
-				 enum hns3_udp_tnl_type type)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	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(netdev,
-			    "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 *netdev, u16 port,
-				 enum hns3_udp_tnl_type type)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	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(netdev,
-			    "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->del_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 *netdev,
-				    struct udp_tunnel_info *ti)
-{
-	u16 port_n = ntohs(ti->port);
-
-	switch (ti->type) {
-	case UDP_TUNNEL_TYPE_VXLAN:
-		hns3_add_tunnel_port(netdev, port_n, HNS3_UDP_TNL_VXLAN);
-		break;
-	case UDP_TUNNEL_TYPE_GENEVE:
-		hns3_add_tunnel_port(netdev, port_n, HNS3_UDP_TNL_GENEVE);
-		break;
-	default:
-		netdev_err(netdev, "unsupported tunnel type %d\n", ti->type);
-		break;
-	}
-}
-
-static void hns3_nic_udp_tunnel_del(struct net_device *netdev,
-				    struct udp_tunnel_info *ti)
-{
-	u16 port_n = ntohs(ti->port);
-
-	switch (ti->type) {
-	case UDP_TUNNEL_TYPE_VXLAN:
-		hns3_del_tunnel_port(netdev, port_n, HNS3_UDP_TNL_VXLAN);
-		break;
-	case UDP_TUNNEL_TYPE_GENEVE:
-		hns3_del_tunnel_port(netdev, port_n, HNS3_UDP_TNL_GENEVE);
-		break;
-	default:
-		break;
-	}
-}
-
-static int hns3_setup_tc(struct net_device *netdev, void *type_data)
-{
-	struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	struct hnae3_knic_private_info *kinfo = &h->kinfo;
-	u8 *prio_tc = mqprio_qopt->qopt.prio_tc_map;
-	u8 tc = mqprio_qopt->qopt.num_tc;
-	u16 mode = mqprio_qopt->mode;
-	u8 hw = mqprio_qopt->qopt.hw;
-	bool if_running;
-	unsigned int i;
-	int ret;
-
-	if (!((hw == TC_MQPRIO_HW_OFFLOAD_TCS &&
-	       mode == TC_MQPRIO_MODE_CHANNEL) || (!hw && tc == 0)))
-		return -EOPNOTSUPP;
-
-	if (tc > HNAE3_MAX_TC)
-		return -EINVAL;
-
-	if (!netdev)
-		return -EINVAL;
-
-	if_running = netif_running(netdev);
-	if (if_running) {
-		hns3_nic_net_stop(netdev);
-		msleep(100);
-	}
-
-	ret = (kinfo->dcb_ops && kinfo->dcb_ops->setup_tc) ?
-		kinfo->dcb_ops->setup_tc(h, tc, prio_tc) : -EOPNOTSUPP;
-	if (ret)
-		goto out;
-
-	if (tc <= 1) {
-		netdev_reset_tc(netdev);
-	} else {
-		ret = netdev_set_num_tc(netdev, tc);
-		if (ret)
-			goto out;
-
-		for (i = 0; i < HNAE3_MAX_TC; i++) {
-			if (!kinfo->tc_info[i].enable)
-				continue;
-
-			netdev_set_tc_queue(netdev,
-					    kinfo->tc_info[i].tc,
-					    kinfo->tc_info[i].tqp_count,
-					    kinfo->tc_info[i].tqp_offset);
-		}
-	}
-
-	ret = hns3_nic_set_real_num_queue(netdev);
-
-out:
-	if (if_running)
-		hns3_nic_net_open(netdev);
-
-	return ret;
-}
-
-static int hns3_nic_setup_tc(struct net_device *dev, enum tc_setup_type type,
-			     void *type_data)
-{
-	if (type != TC_SETUP_QDISC_MQPRIO)
-		return -EOPNOTSUPP;
-
-	return hns3_setup_tc(dev, type_data);
-}
-
-static int hns3_vlan_rx_add_vid(struct net_device *netdev,
-				__be16 proto, u16 vid)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	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 *netdev,
-				 __be16 proto, u16 vid)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	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 *netdev, int vf, u16 vlan,
-				u8 qos, __be16 vlan_proto)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	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 int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
-{
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	bool if_running = netif_running(netdev);
-	int ret;
-
-	if (!h->ae_algo->ops->set_mtu)
-		return -EOPNOTSUPP;
-
-	/* if this was called with netdev up then bring netdevice down */
-	if (if_running) {
-		(void)hns3_nic_net_stop(netdev);
-		msleep(100);
-	}
-
-	ret = h->ae_algo->ops->set_mtu(h, new_mtu);
-	if (ret) {
-		netdev_err(netdev, "failed to change MTU in hardware %d\n",
-			   ret);
-		return ret;
-	}
-
-	/* if the netdev was running earlier, bring it up again */
-	if (if_running && hns3_nic_net_open(netdev))
-		ret = -EINVAL;
-
-	return ret;
-}
-
-static bool hns3_get_tx_timeo_queue_info(struct net_device *ndev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(ndev);
-	struct hns3_enet_ring *tx_ring = NULL;
-	int timeout_queue = 0;
-	int hw_head, hw_tail;
-	int i;
-
-	/* Find the stopped queue the same way the stack does */
-	for (i = 0; i < ndev->real_num_tx_queues; i++) {
-		struct netdev_queue *q;
-		unsigned long trans_start;
-
-		q = netdev_get_tx_queue(ndev, i);
-		trans_start = q->trans_start;
-		if (netif_xmit_stopped(q) &&
-		    time_after(jiffies,
-			       (trans_start + ndev->watchdog_timeo))) {
-			timeout_queue = i;
-			break;
-		}
-	}
-
-	if (i == ndev->num_tx_queues) {
-		netdev_info(ndev,
-			    "no netdev TX timeout queue found, timeout count: %llu\n",
-			    priv->tx_timeout_count);
-		return false;
-	}
-
-	tx_ring = priv->ring_data[timeout_queue].ring;
-
-	hw_head = readl_relaxed(tx_ring->tqp->io_base +
-				HNS3_RING_TX_RING_HEAD_REG);
-	hw_tail = readl_relaxed(tx_ring->tqp->io_base +
-				HNS3_RING_TX_RING_TAIL_REG);
-	netdev_info(ndev,
-		    "tx_timeout count: %llu, queue id: %d, SW_NTU: 0x%x, SW_NTC: 0x%x, HW_HEAD: 0x%x, HW_TAIL: 0x%x, INT: 0x%x\n",
-		    priv->tx_timeout_count,
-		    timeout_queue,
-		    tx_ring->next_to_use,
-		    tx_ring->next_to_clean,
-		    hw_head,
-		    hw_tail,
-		    readl(tx_ring->tqp_vector->mask_addr));
-
-	return true;
-}
-
-static void hns3_nic_net_timeout(struct net_device *ndev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(ndev);
-	unsigned long last_reset_time = priv->last_reset_time;
-	struct hnae3_handle *h = priv->ae_handle;
-
-	if (!hns3_get_tx_timeo_queue_info(ndev))
-		return;
-
-	priv->tx_timeout_count++;
-
-	/* This timeout is far away enough from last timeout,
-	 * if timeout again,set the reset type to PF reset
-	 */
-	if (time_after(jiffies, (last_reset_time + 20 * HZ)))
-		priv->reset_level = HNAE3_FUNC_RESET;
-
-	/* Don't do any new action before the next timeout */
-	else if (time_before(jiffies, (last_reset_time + ndev->watchdog_timeo)))
-		return;
-
-	priv->last_reset_time = jiffies;
-
-	if (h->ae_algo->ops->reset_event)
-		h->ae_algo->ops->reset_event(h, priv->reset_level);
-
-	priv->reset_level++;
-	if (priv->reset_level > HNAE3_GLOBAL_RESET)
-		priv->reset_level = HNAE3_GLOBAL_RESET;
-}
-
-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_tx_timeout		= hns3_nic_net_timeout,
-	.ndo_set_mac_address	= hns3_nic_net_set_mac_address,
-	.ndo_change_mtu		= hns3_nic_change_mtu,
-	.ndo_set_features	= hns3_nic_set_features,
-	.ndo_get_stats64	= hns3_nic_get_stats64,
-	.ndo_setup_tc		= hns3_nic_setup_tc,
-	.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 = devm_kzalloc(&pdev->dev, sizeof(*ae_dev),
-			      GFP_KERNEL);
-	if (!ae_dev) {
-		ret = -ENOMEM;
-		return ret;
-	}
-
-	ae_dev->pdev = pdev;
-	ae_dev->flag = ent->driver_data;
-	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);
-
-	devm_kfree(&pdev->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 *netdev)
-{
-	netdev->priv_flags |= IFF_UNICAST_FLT;
-
-	netdev->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;
-
-	netdev->hw_enc_features |= NETIF_F_TSO_MANGLEID;
-
-	netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
-
-	netdev->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;
-
-	netdev->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;
-
-	netdev->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;
-
-	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 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 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 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_buffer(ring, cb);
-out:
-	return ret;
-}
-
-static 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 void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
-				struct hns3_desc_cb *res_cb)
-{
-	hns3_unmap_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 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 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);
-}
-
-bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
-{
-	struct net_device *netdev = 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 true; /* no data to poll */
-
-	if (!is_valid_clean_head(ring, head)) {
-		netdev_err(netdev, "wrong head (%d, %d-%d)\n", head,
-			   ring->next_to_use, ring->next_to_clean);
-
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.io_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
-		return true;
-	}
-
-	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;
-
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.tx_bytes += bytes;
-	ring->stats.tx_pkts += pkts;
-	u64_stats_update_end(&ring->syncp);
-
-	dev_queue = netdev_get_tx_queue(netdev, ring->tqp->tqp_index);
-	netdev_tx_completed_queue(dev_queue, pkts, bytes);
-
-	if (unlikely(pkts && netif_carrier_ok(netdev) &&
-		     (ring_space(ring) > HNS3_MAX_BD_PER_PKT))) {
-		/* Make sure that anybody stopping the queue after this
-		 * sees the new next_to_clean.
-		 */
-		smp_mb();
-		if (netif_tx_queue_stopped(dev_queue)) {
-			netif_tx_wake_queue(dev_queue);
-			ring->stats.restart_queue++;
-		}
-	}
-
-	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) {
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.reuse_pg_cnt++;
-			u64_stats_update_end(&ring->syncp);
-
-			hns3_reuse_buffer(ring, ring->next_to_use);
-		} else {
-			ret = hns3_reserve_buffer_map(ring, &res_cbs);
-			if (ret) {
-				u64_stats_update_begin(&ring->syncp);
-				ring->stats.sw_err_cnt++;
-				u64_stats_update_end(&ring->syncp);
-
-				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 *netdev = 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 (!(netdev->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(netdev, "L3/L4 error pkt\n");
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.l3l4_csum_err++;
-		u64_stats_update_end(&ring->syncp);
-
-		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 void hns3_rx_skb(struct hns3_enet_ring *ring, struct sk_buff *skb)
-{
-	napi_gro_receive(&ring->tqp_vector->napi, skb);
-}
-
-static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
-			     struct sk_buff **out_skb, int *out_bnum)
-{
-	struct net_device *netdev = 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
-	 * Idea is to cache few bytes of the header of the packet. Our L1 Cache
-	 * line size is 64B so need to prefetch twice to make it 128B. But in
-	 * actual we can have greater size of caches with 128B Level 1 cache
-	 * lines. In such a case, single fetch would suffice to cache in the
-	 * relevant part of the header.
-	 */
-	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(netdev, "alloc rx skb fail\n");
-
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
-
-		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 {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.seg_pkt_cnt++;
-		u64_stats_update_end(&ring->syncp);
-
-		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(netdev, "no valid bd,%016llx,%016llx\n",
-			   ((u64 *)desc)[0], ((u64 *)desc)[1]);
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.non_vld_descs++;
-		u64_stats_update_end(&ring->syncp);
-
-		dev_kfree_skb_any(skb);
-		return -EINVAL;
-	}
-
-	if (unlikely((!desc->rx.pkt_len) ||
-		     hnae_get_bit(l234info, HNS3_RXD_TRUNCAT_B))) {
-		netdev_err(netdev, "truncated pkt\n");
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.err_pkt_len++;
-		u64_stats_update_end(&ring->syncp);
-
-		dev_kfree_skb_any(skb);
-		return -EFAULT;
-	}
-
-	if (unlikely(hnae_get_bit(l234info, HNS3_RXD_L2E_B))) {
-		netdev_err(netdev, "L2 error pkt\n");
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.l2_err++;
-		u64_stats_update_end(&ring->syncp);
-
-		dev_kfree_skb_any(skb);
-		return -EFAULT;
-	}
-
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.rx_pkts++;
-	ring->stats.rx_bytes += skb->len;
-	u64_stats_update_end(&ring->syncp);
-
-	ring->tqp_vector->rx_group.total_bytes += skb->len;
-
-	hns3_rx_checksum(ring, skb, desc);
-	return 0;
-}
-
-int hns3_clean_rx_ring(
-		struct hns3_enet_ring *ring, int budget,
-		void (*rx_fn)(struct hns3_enet_ring *, struct sk_buff *))
-{
-#define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
-	struct net_device *netdev = 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, netdev);
-		rx_fn(ring, 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)
-{
-#define HNS3_RX_ULTRA_PACKET_RATE 40000
-	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;
-	}
-
-	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_coalesc_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_coalesc_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;
-	}
-
-	/* 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,
-						    hns3_rx_skb);
-
-		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_VECTOR_INITED) {
-			(void)irq_set_affinity_hint(
-				priv->tqp_vector[i].vector_irq,
-						    NULL);
-			free_irq(priv->tqp_vector[i].vector_irq,
-				 &priv->tqp_vector[i]);
-		}
-
-		priv->ring_data[i].ring->irq_init_flag = HNS3_VECTOR_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_data[q->tqp_index].queue_index = q->tqp_index;
-		ring->io_base = (u8 __iomem *)q->io_base + HNS3_TX_REG_OFFSET;
-	} else {
-		ring_data[q->tqp_index + queue_num].ring = ring;
-		ring_data[q->tqp_index + queue_num].queue_index = q->tqp_index;
-		ring->io_base = q->io_base;
-	}
-
-	hnae_set_bit(ring->flag, HNAE3_RING_TYPE_B, ring_type);
-
-	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;
-}
-
-static 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);
-	}
-}
-
-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);
-
-		u64_stats_init(&priv->ring_data[i].ring->syncp);
-	}
-
-	return 0;
-
-out_when_alloc_ring_memory:
-	for (j = i - 1; j >= 0; j--)
-		hns3_fini_ring(priv->ring_data[j].ring);
-
-	return -ENOMEM;
-}
-
-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 configured. or leave it to the AE driver */
-static void hns3_init_mac_addr(struct net_device *netdev)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	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(netdev->dev_addr, mac_addr_temp);
-	}
-
-	/* Check if the MAC address is valid, if not get a random one */
-	if (!is_valid_ether_addr(netdev->dev_addr)) {
-		eth_hw_addr_random(netdev);
-		dev_warn(priv->dev, "using random MAC address %pM\n",
-			 netdev->dev_addr);
-	}
-
-	if (h->ae_algo->ops->set_mac_addr)
-		h->ae_algo->ops->set_mac_addr(h, netdev->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 *netdev;
-	int ret;
-
-	netdev = alloc_etherdev_mq(sizeof(struct hns3_nic_priv),
-				   handle->kinfo.num_tqps);
-	if (!netdev)
-		return -ENOMEM;
-
-	priv = netdev_priv(netdev);
-	priv->dev = &pdev->dev;
-	priv->netdev = netdev;
-	priv->ae_handle = handle;
-	priv->last_reset_time = jiffies;
-	priv->reset_level = HNAE3_FUNC_RESET;
-	priv->tx_timeout_count = 0;
-
-	handle->kinfo.netdev = netdev;
-	handle->priv = (void *)priv;
-
-	hns3_init_mac_addr(netdev);
-
-	hns3_set_default_feature(netdev);
-
-	netdev->watchdog_timeo = HNS3_TX_TIMEOUT;
-	netdev->priv_flags |= IFF_UNICAST_FLT;
-	netdev->netdev_ops = &hns3_nic_netdev_ops;
-	SET_NETDEV_DEV(netdev, &pdev->dev);
-	hns3_ethtool_set_ops(netdev);
-	hns3_nic_set_priv_ops(netdev);
-
-	/* Carrier off reporting is important to ethtool even BEFORE open */
-	netif_carrier_off(netdev);
-
-	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(netdev);
-	if (ret) {
-		dev_err(priv->dev, "probe register netdev fail!\n");
-		goto out_reg_netdev_fail;
-	}
-
-	hns3_dcbnl_setup(handle);
-
-	/* MTU range: (ETH_MIN_MTU(kernel default) - 9706) */
-	netdev->max_mtu = HNS3_MAX_MTU - (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
-
-	return ret;
-
-out_reg_netdev_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(netdev);
-	return ret;
-}
-
-static void hns3_client_uninit(struct hnae3_handle *handle, bool reset)
-{
-	struct net_device *netdev = handle->kinfo.netdev;
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int ret;
-
-	if (netdev->reg_state != NETREG_UNINITIALIZED)
-		unregister_netdev(netdev);
-
-	ret = hns3_nic_uninit_vector_data(priv);
-	if (ret)
-		netdev_err(netdev, "uninit vector error\n");
-
-	ret = hns3_uninit_all_ring(priv);
-	if (ret)
-		netdev_err(netdev, "uninit ring error\n");
-
-	priv->ring_data = NULL;
-
-	free_netdev(netdev);
-}
-
-static void hns3_link_status_change(struct hnae3_handle *handle, bool linkup)
-{
-	struct net_device *netdev = handle->kinfo.netdev;
-
-	if (!netdev)
-		return;
-
-	if (linkup) {
-		netif_carrier_on(netdev);
-		netif_tx_wake_all_queues(netdev);
-		netdev_info(netdev, "link up\n");
-	} else {
-		netif_carrier_off(netdev);
-		netif_tx_stop_all_queues(netdev);
-		netdev_info(netdev, "link down\n");
-	}
-}
-
-static int hns3_client_setup_tc(struct hnae3_handle *handle, u8 tc)
-{
-	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
-	struct net_device *ndev = kinfo->netdev;
-	bool if_running;
-	int ret;
-	u8 i;
-
-	if (tc > HNAE3_MAX_TC)
-		return -EINVAL;
-
-	if (!ndev)
-		return -ENODEV;
-
-	if_running = netif_running(ndev);
-
-	ret = netdev_set_num_tc(ndev, tc);
-	if (ret)
-		return ret;
-
-	if (if_running) {
-		(void)hns3_nic_net_stop(ndev);
-		msleep(100);
-	}
-
-	ret = (kinfo->dcb_ops && kinfo->dcb_ops->map_update) ?
-		kinfo->dcb_ops->map_update(handle) : -EOPNOTSUPP;
-	if (ret)
-		goto err_out;
-
-	if (tc <= 1) {
-		netdev_reset_tc(ndev);
-		goto out;
-	}
-
-	for (i = 0; i < HNAE3_MAX_TC; i++) {
-		struct hnae3_tc_info *tc_info = &kinfo->tc_info[i];
-
-		if (tc_info->enable)
-			netdev_set_tc_queue(ndev,
-					    tc_info->tc,
-					    tc_info->tqp_count,
-					    tc_info->tqp_offset);
-	}
-
-	for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) {
-		netdev_set_prio_tc_map(ndev, i,
-				       kinfo->prio_tc[i]);
-	}
-
-out:
-	ret = hns3_nic_set_real_num_queue(ndev);
-
-err_out:
-	if (if_running)
-		(void)hns3_nic_net_open(ndev);
-
-	return ret;
-}
-
-static void hns3_recover_hw_addr(struct net_device *ndev)
-{
-	struct netdev_hw_addr_list *list;
-	struct netdev_hw_addr *ha, *tmp;
-
-	/* go through and sync uc_addr entries to the device */
-	list = &ndev->uc;
-	list_for_each_entry_safe(ha, tmp, &list->list, list)
-		hns3_nic_uc_sync(ndev, ha->addr);
-
-	/* go through and sync mc_addr entries to the device */
-	list = &ndev->mc;
-	list_for_each_entry_safe(ha, tmp, &list->list, list)
-		hns3_nic_mc_sync(ndev, ha->addr);
-}
-
-static void hns3_drop_skb_data(struct hns3_enet_ring *ring, struct sk_buff *skb)
-{
-	dev_kfree_skb_any(skb);
-}
-
-static void hns3_clear_all_ring(struct hnae3_handle *h)
-{
-	struct net_device *ndev = h->kinfo.netdev;
-	struct hns3_nic_priv *priv = netdev_priv(ndev);
-	u32 i;
-
-	for (i = 0; i < h->kinfo.num_tqps; i++) {
-		struct netdev_queue *dev_queue;
-		struct hns3_enet_ring *ring;
-
-		ring = priv->ring_data[i].ring;
-		hns3_clean_tx_ring(ring, ring->desc_num);
-		dev_queue = netdev_get_tx_queue(ndev,
-						priv->ring_data[i].queue_index);
-		netdev_tx_reset_queue(dev_queue);
-
-		ring = priv->ring_data[i + h->kinfo.num_tqps].ring;
-		hns3_clean_rx_ring(ring, ring->desc_num, hns3_drop_skb_data);
-	}
-}
-
-static int hns3_reset_notify_down_enet(struct hnae3_handle *handle)
-{
-	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
-	struct net_device *ndev = kinfo->netdev;
-
-	if (!netif_running(ndev))
-		return -EIO;
-
-	return hns3_nic_net_stop(ndev);
-}
-
-static int hns3_reset_notify_up_enet(struct hnae3_handle *handle)
-{
-	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
-	struct hns3_nic_priv *priv = netdev_priv(kinfo->netdev);
-	int ret = 0;
-
-	if (netif_running(kinfo->netdev)) {
-		ret = hns3_nic_net_up(kinfo->netdev);
-		if (ret) {
-			netdev_err(kinfo->netdev,
-				   "hns net up fail, ret=%d!\n", ret);
-			return ret;
-		}
-
-		priv->last_reset_time = jiffies;
-	}
-
-	return ret;
-}
-
-static int hns3_reset_notify_init_enet(struct hnae3_handle *handle)
-{
-	struct net_device *netdev = handle->kinfo.netdev;
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int ret;
-
-	priv->reset_level = 1;
-	hns3_init_mac_addr(netdev);
-	hns3_nic_set_rx_mode(netdev);
-	hns3_recover_hw_addr(netdev);
-
-	/* Carrier off reporting is important to ethtool even BEFORE open */
-	netif_carrier_off(netdev);
-
-	ret = hns3_get_ring_config(priv);
-	if (ret)
-		return ret;
-
-	ret = hns3_nic_init_vector_data(priv);
-	if (ret)
-		return ret;
-
-	ret = hns3_init_all_ring(priv);
-	if (ret) {
-		hns3_nic_uninit_vector_data(priv);
-		priv->ring_data = NULL;
-	}
-
-	return ret;
-}
-
-static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
-{
-	struct net_device *netdev = handle->kinfo.netdev;
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int ret;
-
-	hns3_clear_all_ring(handle);
-
-	ret = hns3_nic_uninit_vector_data(priv);
-	if (ret) {
-		netdev_err(netdev, "uninit vector error\n");
-		return ret;
-	}
-
-	ret = hns3_uninit_all_ring(priv);
-	if (ret)
-		netdev_err(netdev, "uninit ring error\n");
-
-	priv->ring_data = NULL;
-
-	return ret;
-}
-
-static int hns3_reset_notify(struct hnae3_handle *handle,
-			     enum hnae3_reset_notify_type type)
-{
-	int ret = 0;
-
-	switch (type) {
-	case HNAE3_UP_CLIENT:
-                ret = hns3_reset_notify_up_enet(handle);
-                break;
-	case HNAE3_DOWN_CLIENT:
-		ret = hns3_reset_notify_down_enet(handle);
-		break;
-	case HNAE3_INIT_CLIENT:
-		ret = hns3_reset_notify_init_enet(handle);
-		break;
-	case HNAE3_UNINIT_CLIENT:
-		ret = hns3_reset_notify_uninit_enet(handle);
-		break;
-	default:
-		break;
-	}
-
-	return ret;
-}
-
-static const struct hnae3_client_ops client_ops = {
-	.init_instance = hns3_client_init,
-	.uninit_instance = hns3_client_uninit,
-	.link_status_change = hns3_link_status_change,
-	.setup_tc = hns3_client_setup_tc,
-	.reset_notify = hns3_reset_notify,
-};
-
-/* 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)
-{
-	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.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;
-
-	ret = pci_register_driver(&hns3_driver);
-	if (ret)
-		hnae3_unregister_client(&client);
-
-	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);
-	hnae3_unregister_client(&client);
-}
-module_exit(hns3_exit_module);
-
-MODULE_DESCRIPTION("HNS3: Hisilicon Ethernet Driver");
-MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("pci:hns-nic");