drivers/net/ethernet/hisilicon/hns/hns_ethtool.c

   1 /*
   2  * Copyright (c) 2014-2015 Hisilicon Limited.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  */
   9
  10 #include <linux/etherdevice.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/module.h>
  13 #include <linux/platform_device.h>
  14
  15 #include "hns_enet.h"
  16
  17 #define HNS_PHY_PAGE_MDIX       0
  18 #define HNS_PHY_PAGE_LED        3
  19 #define HNS_PHY_PAGE_COPPER     0
  20
  21 #define HNS_PHY_PAGE_REG        22      /* Page Selection Reg. */
  22 #define HNS_PHY_CSC_REG         16      /* Copper Specific Control Register */
  23 #define HNS_PHY_CSS_REG         17      /* Copper Specific Status Register */
  24 #define HNS_LED_FC_REG          16      /* LED Function Control Reg. */
  25 #define HNS_LED_PC_REG          17      /* LED Polarity Control Reg. */
  26
  27 #define HNS_LED_FORCE_ON        9
  28 #define HNS_LED_FORCE_OFF       8
  29
  30 #define HNS_CHIP_VERSION 660
  31 #define HNS_NET_STATS_CNT 26
  32
  33 #define PHY_MDIX_CTRL_S         (5)
  34 #define PHY_MDIX_CTRL_M         (3 << PHY_MDIX_CTRL_S)
  35
  36 #define PHY_MDIX_STATUS_B       (6)
  37 #define PHY_SPEED_DUP_RESOLVE_B (11)
  38
  39 /**
  40  *hns_nic_get_link - get current link status
  41  *@net_dev: net_device
  42  *retuen 0 - success , negative --fail
  43  */
  44 static u32 hns_nic_get_link(struct net_device *net_dev)
  45 {
  46         struct hns_nic_priv *priv = netdev_priv(net_dev);
  47         u32 link_stat = priv->link;
  48         struct hnae_handle *h;
  49
  50         assert(priv && priv->ae_handle);
  51         h = priv->ae_handle;
  52
  53         if (priv->phy) {
  54                 if (!genphy_update_link(priv->phy))
  55                         link_stat = priv->phy->link;
  56                 else
  57                         link_stat = 0;
  58         }
  59
  60         if (h->dev && h->dev->ops && h->dev->ops->get_status)
  61                 link_stat = link_stat && h->dev->ops->get_status(h);
  62         else
  63                 link_stat = 0;
  64
  65         return link_stat;
  66 }
  67
  68 static void hns_get_mdix_mode(struct net_device *net_dev,
  69                               struct ethtool_cmd *cmd)
  70 {
  71         int mdix_ctrl, mdix, retval, is_resolved;
  72         struct hns_nic_priv *priv = netdev_priv(net_dev);
  73         struct phy_device *phy_dev = priv->phy;
  74
  75         if (!phy_dev || !phy_dev->bus) {
  76                 cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
  77                 cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
  78                 return;
  79         }
  80
  81         (void)mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_PHY_PAGE_REG,
  82                             HNS_PHY_PAGE_MDIX);
  83
  84         retval = mdiobus_read(phy_dev->bus, phy_dev->addr, HNS_PHY_CSC_REG);
  85         mdix_ctrl = hnae_get_field(retval, PHY_MDIX_CTRL_M, PHY_MDIX_CTRL_S);
  86
  87         retval = mdiobus_read(phy_dev->bus, phy_dev->addr, HNS_PHY_CSS_REG);
  88         mdix = hnae_get_bit(retval, PHY_MDIX_STATUS_B);
  89         is_resolved = hnae_get_bit(retval, PHY_SPEED_DUP_RESOLVE_B);
  90
  91         (void)mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_PHY_PAGE_REG,
  92                             HNS_PHY_PAGE_COPPER);
  93
  94         switch (mdix_ctrl) {
  95         case 0x0:
  96                 cmd->eth_tp_mdix_ctrl = ETH_TP_MDI;
  97                 break;
  98         case 0x1:
  99                 cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_X;
 100                 break;
 101         case 0x3:
 102                 cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 103                 break;
 104         default:
 105                 cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
 106                 break;
 107         }
 108
 109         if (!is_resolved)
 110                 cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 111         else if (mdix)
 112                 cmd->eth_tp_mdix = ETH_TP_MDI_X;
 113         else
 114                 cmd->eth_tp_mdix = ETH_TP_MDI;
 115 }
 116
 117 /**
 118  *hns_nic_get_settings - implement ethtool get settings
 119  *@net_dev: net_device
 120  *@cmd: ethtool_cmd
 121  *retuen 0 - success , negative --fail
 122  */
 123 static int hns_nic_get_settings(struct net_device *net_dev,
 124                                 struct ethtool_cmd *cmd)
 125 {
 126         struct hns_nic_priv *priv = netdev_priv(net_dev);
 127         struct hnae_handle *h;
 128         u32 link_stat;
 129         int ret;
 130         u8 duplex;
 131         u16 speed;
 132
 133         if (!priv || !priv->ae_handle)
 134                 return -ESRCH;
 135
 136         h = priv->ae_handle;
 137         if (!h->dev || !h->dev->ops || !h->dev->ops->get_info)
 138                 return -ESRCH;
 139
 140         ret = h->dev->ops->get_info(h, NULL, &speed, &duplex);
 141         if (ret < 0) {
 142                 netdev_err(net_dev, "%s get_info error!\n", __func__);
 143                 return -EINVAL;
 144         }
 145
 146         /* When there is no phy, autoneg is off. */
 147         cmd->autoneg = false;
 148         ethtool_cmd_speed_set(cmd, speed);
 149         cmd->duplex = duplex;
 150
 151         if (priv->phy)
 152                 (void)phy_ethtool_gset(priv->phy, cmd);
 153
 154         link_stat = hns_nic_get_link(net_dev);
 155         if (!link_stat) {
 156                 ethtool_cmd_speed_set(cmd, (u32)SPEED_UNKNOWN);
 157                 cmd->duplex = DUPLEX_UNKNOWN;
 158         }
 159
 160         if (cmd->autoneg)
 161                 cmd->advertising |= ADVERTISED_Autoneg;
 162
 163         cmd->supported |= h->if_support;
 164         if (h->phy_if == PHY_INTERFACE_MODE_SGMII) {
 165                 cmd->supported |= SUPPORTED_TP;
 166                 cmd->advertising |= ADVERTISED_1000baseT_Full;
 167         } else if (h->phy_if == PHY_INTERFACE_MODE_XGMII) {
 168                 cmd->supported |= SUPPORTED_FIBRE;
 169                 cmd->advertising |= ADVERTISED_10000baseKR_Full;
 170         }
 171
 172         if (h->port_type == HNAE_PORT_SERVICE) {
 173                 cmd->port = PORT_FIBRE;
 174                 cmd->supported |= SUPPORTED_Pause;
 175         } else {
 176                 cmd->port = PORT_TP;
 177         }
 178
 179         cmd->transceiver = XCVR_EXTERNAL;
 180         cmd->mdio_support = (ETH_MDIO_SUPPORTS_C45 | ETH_MDIO_SUPPORTS_C22);
 181         hns_get_mdix_mode(net_dev, cmd);
 182
 183         return 0;
 184 }
 185
 186 /**
 187  *hns_nic_set_settings - implement ethtool set settings
 188  *@net_dev: net_device
 189  *@cmd: ethtool_cmd
 190  *retuen 0 - success , negative --fail
 191  */
 192 static int hns_nic_set_settings(struct net_device *net_dev,
 193                                 struct ethtool_cmd *cmd)
 194 {
 195         struct hns_nic_priv *priv = netdev_priv(net_dev);
 196         struct hnae_handle *h;
 197         int link_stat;
 198         u32 speed;
 199         u8 duplex, autoneg;
 200
 201         if (!netif_running(net_dev))
 202                 return -ESRCH;
 203
 204         if (!priv || !priv->ae_handle || !priv->ae_handle->dev ||
 205             !priv->ae_handle->dev->ops)
 206                 return -ENODEV;
 207
 208         h = priv->ae_handle;
 209         link_stat = hns_nic_get_link(net_dev);
 210         duplex = cmd->duplex;
 211         speed = ethtool_cmd_speed(cmd);
 212         autoneg = cmd->autoneg;
 213
 214         if (!link_stat) {
 215                 if (duplex != (u8)DUPLEX_UNKNOWN || speed != (u32)SPEED_UNKNOWN)
 216                         return -EINVAL;
 217
 218                 if (h->phy_if == PHY_INTERFACE_MODE_SGMII && h->phy_node) {
 219                         priv->phy->autoneg = autoneg;
 220                         return phy_start_aneg(priv->phy);
 221                 }
 222         }
 223
 224         if (h->phy_if == PHY_INTERFACE_MODE_XGMII) {
 225                 if (autoneg != AUTONEG_DISABLE)
 226                         return -EINVAL;
 227
 228                 if (speed != SPEED_10000 || duplex != DUPLEX_FULL)
 229                         return -EINVAL;
 230         } else if (h->phy_if == PHY_INTERFACE_MODE_SGMII) {
 231                 if (!h->phy_node && autoneg != AUTONEG_DISABLE)
 232                         return -EINVAL;
 233
 234                 if (speed == SPEED_1000 && duplex == DUPLEX_HALF)
 235                         return -EINVAL;
 236
 237                 if (speed != SPEED_10 && speed != SPEED_100 &&
 238                     speed != SPEED_1000)
 239                         return -EINVAL;
 240         } else {
 241                 netdev_err(net_dev, "Not supported!");
 242                 return -ENOTSUPP;
 243         }
 244
 245         if (priv->phy) {
 246                 return phy_ethtool_sset(priv->phy, cmd);
 247         } else if (h->dev->ops->adjust_link && link_stat) {
 248                 h->dev->ops->adjust_link(h, speed, duplex);
 249                 return 0;
 250         }
 251         netdev_err(net_dev, "Not supported!");
 252         return -ENOTSUPP;
 253 }
 254
 255 static const char hns_nic_test_strs[][ETH_GSTRING_LEN] = {
 256         "Mac    Loopback test",
 257         "Serdes Loopback test",
 258         "Phy    Loopback test"
 259 };
 260
 261 static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en)
 262 {
 263 #define COPPER_CONTROL_REG 0
 264 #define PHY_LOOP_BACK BIT(14)
 265         u16 val = 0;
 266
 267         if (phy_dev->is_c45) /* c45 branch adding for XGE PHY */
 268                 return -ENOTSUPP;
 269
 270         if (en) {
 271                 /* speed : 1000M */
 272                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 273                                     HNS_PHY_PAGE_REG, 2);
 274                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 275                                     21, 0x1046);
 276                 /* Force Master */
 277                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 278                                     9, 0x1F00);
 279                 /* Soft-reset */
 280                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 281                                     0, 0x9140);
 282                 /* If autoneg disabled,two soft-reset operations */
 283                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 284                                     0, 0x9140);
 285                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 286                                     22, 0xFA);
 287
 288                 /* Default is 0x0400 */
 289                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 290                                     1, 0x418);
 291
 292                 /* Force 1000M Link, Default is 0x0200 */
 293                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 294                                     7, 0x20C);
 295                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 296                                     22, 0);
 297
 298                 /* Enable MAC loop-back */
 299                 val = (u16)mdiobus_read(phy_dev->bus, phy_dev->addr,
 300                                         COPPER_CONTROL_REG);
 301                 val |= PHY_LOOP_BACK;
 302                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 303                                     COPPER_CONTROL_REG, val);
 304         } else {
 305                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 306                                     22, 0xFA);
 307                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 308                                     1, 0x400);
 309                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 310                                     7, 0x200);
 311                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 312                                     22, 0);
 313
 314                 val = (u16)mdiobus_read(phy_dev->bus, phy_dev->addr,
 315                                         COPPER_CONTROL_REG);
 316                 val &= ~PHY_LOOP_BACK;
 317                 (void)mdiobus_write(phy_dev->bus, phy_dev->addr,
 318                                     COPPER_CONTROL_REG, val);
 319         }
 320         return 0;
 321 }
 322
 323 static int __lb_setup(struct net_device *ndev,
 324                       enum hnae_loop loop)
 325 {
 326         int ret = 0;
 327         struct hns_nic_priv *priv = netdev_priv(ndev);
 328         struct phy_device *phy_dev = priv->phy;
 329         struct hnae_handle *h = priv->ae_handle;
 330
 331         switch (loop) {
 332         case MAC_INTERNALLOOP_PHY:
 333                 if ((phy_dev) && (!phy_dev->is_c45))
 334                         ret = hns_nic_config_phy_loopback(phy_dev, 0x1);
 335                 break;
 336         case MAC_INTERNALLOOP_MAC:
 337                 if ((h->dev->ops->set_loopback) &&
 338                     (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII))
 339                         ret = h->dev->ops->set_loopback(h, loop, 0x1);
 340                 break;
 341         case MAC_INTERNALLOOP_SERDES:
 342                 if (h->dev->ops->set_loopback)
 343                         ret = h->dev->ops->set_loopback(h, loop, 0x1);
 344                 break;
 345         case MAC_LOOP_NONE:
 346                 if ((phy_dev) && (!phy_dev->is_c45))
 347                         ret |= hns_nic_config_phy_loopback(phy_dev, 0x0);
 348
 349                 if (h->dev->ops->set_loopback) {
 350                         if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)
 351                                 ret |= h->dev->ops->set_loopback(h,
 352                                         MAC_INTERNALLOOP_MAC, 0x0);
 353
 354                         ret |= h->dev->ops->set_loopback(h,
 355                                 MAC_INTERNALLOOP_SERDES, 0x0);
 356                 }
 357                 break;
 358         default:
 359                 ret = -EINVAL;
 360                 break;
 361         }
 362
 363         return ret;
 364 }
 365
 366 static int __lb_up(struct net_device *ndev,
 367                    enum hnae_loop loop_mode)
 368 {
 369         struct hns_nic_priv *priv = netdev_priv(ndev);
 370         struct hnae_handle *h = priv->ae_handle;
 371         int speed, duplex;
 372         int ret;
 373
 374         hns_nic_net_reset(ndev);
 375
 376         if (priv->phy) {
 377                 phy_disconnect(priv->phy);
 378                 msleep(100);
 379
 380                 ret = hns_nic_init_phy(ndev, h);
 381                 if (ret)
 382                         return ret;
 383         }
 384
 385         ret = __lb_setup(ndev, loop_mode);
 386         if (ret)
 387                 return ret;
 388
 389         msleep(100);
 390
 391         ret = h->dev->ops->start ? h->dev->ops->start(h) : 0;
 392         if (ret)
 393                 return ret;
 394
 395         if (priv->phy)
 396                 phy_start(priv->phy);
 397
 398         /* link adjust duplex*/
 399         if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)
 400                 speed = 1000;
 401         else
 402                 speed = 10000;
 403         duplex = 1;
 404
 405         h->dev->ops->adjust_link(h, speed, duplex);
 406
 407         return 0;
 408 }
 409
 410 static void __lb_other_process(struct hns_nic_ring_data *ring_data,
 411                                struct sk_buff *skb)
 412 {
 413         struct net_device *ndev;
 414         struct hnae_ring *ring;
 415         struct netdev_queue *dev_queue;
 416         struct sk_buff *new_skb;
 417         unsigned int frame_size;
 418         int check_ok;
 419         u32 i;
 420         char buff[33]; /* 32B data and the last character '\0' */
 421
 422         if (!ring_data) { /* Just for doing create frame*/
 423                 frame_size = skb->len;
 424                 memset(skb->data, 0xFF, frame_size);
 425                 frame_size &= ~1ul;
 426                 memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
 427                 memset(&skb->data[frame_size / 2 + 10], 0xBE,
 428                        frame_size / 2 - 11);
 429                 memset(&skb->data[frame_size / 2 + 12], 0xAF,
 430                        frame_size / 2 - 13);
 431                 return;
 432         }
 433
 434         ring = ring_data->ring;
 435         ndev = ring_data->napi.dev;
 436         if (is_tx_ring(ring)) { /* for tx queue reset*/
 437                 dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index);
 438                 netdev_tx_reset_queue(dev_queue);
 439                 return;
 440         }
 441
 442         frame_size = skb->len;
 443         frame_size &= ~1ul;
 444         /* for mutl buffer*/
 445         new_skb = skb_copy(skb, GFP_ATOMIC);
 446         dev_kfree_skb_any(skb);
 447         skb = new_skb;
 448
 449         check_ok = 0;
 450         if (*(skb->data + 10) == 0xFF) { /* for rx check frame*/
 451                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
 452                     (*(skb->data + frame_size / 2 + 12) == 0xAF))
 453                         check_ok = 1;
 454         }
 455
 456         if (check_ok) {
 457                 ndev->stats.rx_packets++;
 458                 ndev->stats.rx_bytes += skb->len;
 459         } else {
 460                 ndev->stats.rx_frame_errors++;
 461                 for (i = 0; i < skb->len; i++) {
 462                         snprintf(buff + i % 16 * 2, 3, /* tailing \0*/
 463                                  "%02x", *(skb->data + i));
 464                         if ((i % 16 == 15) || (i == skb->len - 1))
 465                                 pr_info("%s\n", buff);
 466                 }
 467         }
 468         dev_kfree_skb_any(skb);
 469 }
 470
 471 static int __lb_clean_rings(struct hns_nic_priv *priv,
 472                             int ringid0, int ringid1, int budget)
 473 {
 474         int i, ret;
 475         struct hns_nic_ring_data *ring_data;
 476         struct net_device *ndev = priv->netdev;
 477         unsigned long rx_packets = ndev->stats.rx_packets;
 478         unsigned long rx_bytes = ndev->stats.rx_bytes;
 479         unsigned long rx_frame_errors = ndev->stats.rx_frame_errors;
 480
 481         for (i = ringid0; i <= ringid1; i++) {
 482                 ring_data = &priv->ring_data[i];
 483                 (void)ring_data->poll_one(ring_data,
 484                                           budget, __lb_other_process);
 485         }
 486         ret = (int)(ndev->stats.rx_packets - rx_packets);
 487         ndev->stats.rx_packets = rx_packets;
 488         ndev->stats.rx_bytes = rx_bytes;
 489         ndev->stats.rx_frame_errors = rx_frame_errors;
 490         return ret;
 491 }
 492
 493 /**
 494  * nic_run_loopback_test -  run loopback test
 495  * @nic_dev: net device
 496  * @loopback_type: loopback type
 497  */
 498 static int __lb_run_test(struct net_device *ndev,
 499                          enum hnae_loop loop_mode)
 500 {
 501 #define NIC_LB_TEST_PKT_NUM_PER_CYCLE 1
 502 #define NIC_LB_TEST_RING_ID 0
 503 #define NIC_LB_TEST_FRAME_SIZE 128
 504 /* nic loopback test err  */
 505 #define NIC_LB_TEST_NO_MEM_ERR 1
 506 #define NIC_LB_TEST_TX_CNT_ERR 2
 507 #define NIC_LB_TEST_RX_CNT_ERR 3
 508 #define NIC_LB_TEST_RX_PKG_ERR 4
 509         struct hns_nic_priv *priv = netdev_priv(ndev);
 510         struct hnae_handle *h = priv->ae_handle;
 511         int i, j, lc, good_cnt, ret_val = 0;
 512         unsigned int size;
 513         netdev_tx_t tx_ret_val;
 514         struct sk_buff *skb;
 515
 516         size = NIC_LB_TEST_FRAME_SIZE;
 517         /* allocate test skb */
 518         skb = alloc_skb(size, GFP_KERNEL);
 519         if (!skb)
 520                 return NIC_LB_TEST_NO_MEM_ERR;
 521
 522         /* place data into test skb */
 523         (void)skb_put(skb, size);
 524         __lb_other_process(NULL, skb);
 525         skb->queue_mapping = NIC_LB_TEST_RING_ID;
 526
 527         lc = 1;
 528         for (j = 0; j < lc; j++) {
 529                 /* reset count of good packets */
 530                 good_cnt = 0;
 531                 /* place 64 packets on the transmit queue*/
 532                 for (i = 0; i < NIC_LB_TEST_PKT_NUM_PER_CYCLE; i++) {
 533                         (void)skb_get(skb);
 534
 535                         tx_ret_val = (netdev_tx_t)hns_nic_net_xmit_hw(
 536                                 ndev, skb,
 537                                 &tx_ring_data(priv, skb->queue_mapping));
 538                         if (tx_ret_val == NETDEV_TX_OK)
 539                                 good_cnt++;
 540                         else
 541                                 break;
 542                 }
 543                 if (good_cnt != NIC_LB_TEST_PKT_NUM_PER_CYCLE) {
 544                         ret_val = NIC_LB_TEST_TX_CNT_ERR;
 545                         dev_err(priv->dev, "%s sent fail, cnt=0x%x, budget=0x%x\n",
 546                                 hns_nic_test_strs[loop_mode], good_cnt,
 547                                 NIC_LB_TEST_PKT_NUM_PER_CYCLE);
 548                         break;
 549                 }
 550
 551                 /* allow 100 milliseconds for packets to go from Tx to Rx */
 552                 msleep(100);
 553
 554                 good_cnt = __lb_clean_rings(priv,
 555                                             h->q_num, h->q_num * 2 - 1,
 556                                             NIC_LB_TEST_PKT_NUM_PER_CYCLE);
 557                 if (good_cnt != NIC_LB_TEST_PKT_NUM_PER_CYCLE) {
 558                         ret_val = NIC_LB_TEST_RX_CNT_ERR;
 559                         dev_err(priv->dev, "%s recv fail, cnt=0x%x, budget=0x%x\n",
 560                                 hns_nic_test_strs[loop_mode], good_cnt,
 561                                 NIC_LB_TEST_PKT_NUM_PER_CYCLE);
 562                         break;
 563                 }
 564                 (void)__lb_clean_rings(priv,
 565                                        NIC_LB_TEST_RING_ID, NIC_LB_TEST_RING_ID,
 566                                        NIC_LB_TEST_PKT_NUM_PER_CYCLE);
 567         }
 568
 569         /* free the original skb */
 570         kfree_skb(skb);
 571
 572         return ret_val;
 573 }
 574
 575 static int __lb_down(struct net_device *ndev)
 576 {
 577         struct hns_nic_priv *priv = netdev_priv(ndev);
 578         struct hnae_handle *h = priv->ae_handle;
 579         int ret;
 580
 581         ret = __lb_setup(ndev, MAC_LOOP_NONE);
 582         if (ret)
 583                 netdev_err(ndev, "%s: __lb_setup return error(%d)!\n",
 584                            __func__,
 585                            ret);
 586
 587         if (priv->phy)
 588                 phy_stop(priv->phy);
 589
 590         if (h->dev->ops->stop)
 591                 h->dev->ops->stop(h);
 592
 593         usleep_range(10000, 20000);
 594         (void)__lb_clean_rings(priv, 0, h->q_num - 1, 256);
 595
 596         hns_nic_net_reset(ndev);
 597
 598         return 0;
 599 }
 600
 601 /**
 602  * hns_nic_self_test - self test
 603  * @dev: net device
 604  * @eth_test: test cmd
 605  * @data: test result
 606  */
 607 static void hns_nic_self_test(struct net_device *ndev,
 608                               struct ethtool_test *eth_test, u64 *data)
 609 {
 610         struct hns_nic_priv *priv = netdev_priv(ndev);
 611         bool if_running = netif_running(ndev);
 612 #define SELF_TEST_TPYE_NUM 3
 613         int st_param[SELF_TEST_TPYE_NUM][2];
 614         int i;
 615         int test_index = 0;
 616
 617         st_param[0][0] = MAC_INTERNALLOOP_MAC; /* XGE not supported lb */
 618         st_param[0][1] = (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII);
 619         st_param[1][0] = MAC_INTERNALLOOP_SERDES;
 620         st_param[1][1] = 1; /*serdes must exist*/
 621         st_param[2][0] = MAC_INTERNALLOOP_PHY; /* only supporte phy node*/
 622         st_param[2][1] = ((!!(priv->ae_handle->phy_node)) &&
 623                 (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII));
 624
 625         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 626                 set_bit(NIC_STATE_TESTING, &priv->state);
 627
 628                 if (if_running)
 629                         (void)dev_close(ndev);
 630
 631                 for (i = 0; i < SELF_TEST_TPYE_NUM; i++) {
 632                         if (!st_param[i][1])
 633                                 continue;       /* NEXT testing */
 634
 635                         data[test_index] = __lb_up(ndev,
 636                                 (enum hnae_loop)st_param[i][0]);
 637                         if (!data[test_index]) {
 638                                 data[test_index] = __lb_run_test(
 639                                         ndev, (enum hnae_loop)st_param[i][0]);
 640                                 (void)__lb_down(ndev);
 641                         }
 642
 643                         if (data[test_index])
 644                                 eth_test->flags |= ETH_TEST_FL_FAILED;
 645
 646                         test_index++;
 647                 }
 648
 649                 hns_nic_net_reset(priv->netdev);
 650
 651                 clear_bit(NIC_STATE_TESTING, &priv->state);
 652
 653                 if (if_running)
 654                         (void)dev_open(ndev);
 655         }
 656         /* Online tests aren't run; pass by default */
 657
 658         (void)msleep_interruptible(4 * 1000);
 659 }
 660
 661 /**
 662  * hns_nic_get_drvinfo - get net driver info
 663  * @dev: net device
 664  * @drvinfo: driver info
 665  */
 666 static void hns_nic_get_drvinfo(struct net_device *net_dev,
 667                                 struct ethtool_drvinfo *drvinfo)
 668 {
 669         struct hns_nic_priv *priv = netdev_priv(net_dev);
 670
 671         assert(priv);
 672
 673         strncpy(drvinfo->version, HNAE_DRIVER_VERSION,
 674                 sizeof(drvinfo->version));
 675         drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';
 676
 677         strncpy(drvinfo->driver, HNAE_DRIVER_NAME, sizeof(drvinfo->driver));
 678         drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
 679
 680         strncpy(drvinfo->bus_info, priv->dev->bus->name,
 681                 sizeof(drvinfo->bus_info));
 682         drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';
 683
 684         strncpy(drvinfo->fw_version, "N/A", ETHTOOL_FWVERS_LEN);
 685 }
 686
 687 /**
 688  * hns_get_ringparam - get ring parameter
 689  * @dev: net device
 690  * @param: ethtool parameter
 691  */
 692 void hns_get_ringparam(struct net_device *net_dev,
 693                        struct ethtool_ringparam *param)
 694 {
 695         struct hns_nic_priv *priv = netdev_priv(net_dev);
 696         struct hnae_ae_ops *ops;
 697         struct hnae_queue *queue;
 698         u32 uplimit = 0;
 699
 700         queue = priv->ae_handle->qs[0];
 701         ops = priv->ae_handle->dev->ops;
 702
 703         if (ops->get_ring_bdnum_limit)
 704                 ops->get_ring_bdnum_limit(queue, &uplimit);
 705
 706         param->rx_max_pending = uplimit;
 707         param->tx_max_pending = uplimit;
 708         param->rx_pending = queue->rx_ring.desc_num;
 709         param->tx_pending = queue->tx_ring.desc_num;
 710 }
 711
 712 /**
 713  * hns_get_pauseparam - get pause parameter
 714  * @dev: net device
 715  * @param: pause parameter
 716  */
 717 static void hns_get_pauseparam(struct net_device *net_dev,
 718                                struct ethtool_pauseparam *param)
 719 {
 720         struct hns_nic_priv *priv = netdev_priv(net_dev);
 721         struct hnae_ae_ops *ops;
 722
 723         ops = priv->ae_handle->dev->ops;
 724
 725         if (ops->get_pauseparam)
 726                 ops->get_pauseparam(priv->ae_handle, &param->autoneg,
 727                                             &param->rx_pause, &param->tx_pause);
 728 }
 729
 730 /**
 731  * hns_set_pauseparam - set pause parameter
 732  * @dev: net device
 733  * @param: pause parameter
 734  *
 735  * Return 0 on success, negative on failure
 736  */
 737 static int hns_set_pauseparam(struct net_device *net_dev,
 738                               struct ethtool_pauseparam *param)
 739 {
 740         struct hns_nic_priv *priv = netdev_priv(net_dev);
 741         struct hnae_handle *h;
 742         struct hnae_ae_ops *ops;
 743
 744         assert(priv || priv->ae_handle);
 745
 746         h = priv->ae_handle;
 747         ops = h->dev->ops;
 748
 749         if (!ops->set_pauseparam)
 750                 return -ESRCH;
 751
 752         return ops->set_pauseparam(priv->ae_handle, param->autoneg,
 753                                    param->rx_pause, param->tx_pause);
 754 }
 755
 756 /**
 757  * hns_get_coalesce - get coalesce info.
 758  * @dev: net device
 759  * @ec: coalesce info.
 760  *
 761  * Return 0 on success, negative on failure.
 762  */
 763 static int hns_get_coalesce(struct net_device *net_dev,
 764                             struct ethtool_coalesce *ec)
 765 {
 766         struct hns_nic_priv *priv = netdev_priv(net_dev);
 767         struct hnae_ae_ops *ops;
 768
 769         ops = priv->ae_handle->dev->ops;
 770
 771         ec->use_adaptive_rx_coalesce = 1;
 772         ec->use_adaptive_tx_coalesce = 1;
 773
 774         if ((!ops->get_coalesce_usecs) ||
 775             (!ops->get_rx_max_coalesced_frames))
 776                 return -ESRCH;
 777
 778         ops->get_coalesce_usecs(priv->ae_handle,
 779                                         &ec->tx_coalesce_usecs,
 780                                         &ec->rx_coalesce_usecs);
 781
 782         ops->get_rx_max_coalesced_frames(
 783                 priv->ae_handle,
 784                 &ec->tx_max_coalesced_frames,
 785                 &ec->rx_max_coalesced_frames);
 786
 787         return 0;
 788 }
 789
 790 /**
 791  * hns_set_coalesce - set coalesce info.
 792  * @dev: net device
 793  * @ec: coalesce info.
 794  *
 795  * Return 0 on success, negative on failure.
 796  */
 797 static int hns_set_coalesce(struct net_device *net_dev,
 798                             struct ethtool_coalesce *ec)
 799 {
 800         struct hns_nic_priv *priv = netdev_priv(net_dev);
 801         struct hnae_ae_ops *ops;
 802         int ret;
 803
 804         assert(priv || priv->ae_handle);
 805
 806         ops = priv->ae_handle->dev->ops;
 807
 808         if (ec->tx_coalesce_usecs != ec->rx_coalesce_usecs)
 809                 return -EINVAL;
 810
 811         if (ec->rx_max_coalesced_frames != ec->tx_max_coalesced_frames)
 812                 return -EINVAL;
 813
 814         if ((!ops->set_coalesce_usecs) ||
 815             (!ops->set_coalesce_frames))
 816                 return -ESRCH;
 817
 818         ops->set_coalesce_usecs(priv->ae_handle,
 819                                         ec->rx_coalesce_usecs);
 820
 821         ret = ops->set_coalesce_frames(
 822                 priv->ae_handle,
 823                 ec->rx_max_coalesced_frames);
 824
 825         return ret;
 826 }
 827
 828 /**
 829  * hns_get_channels - get channel info.
 830  * @dev: net device
 831  * @ch: channel info.
 832  */
 833 void hns_get_channels(struct net_device *net_dev, struct ethtool_channels *ch)
 834 {
 835         struct hns_nic_priv *priv = netdev_priv(net_dev);
 836
 837         ch->max_rx = priv->ae_handle->q_num;
 838         ch->max_tx = priv->ae_handle->q_num;
 839
 840         ch->rx_count = priv->ae_handle->q_num;
 841         ch->tx_count = priv->ae_handle->q_num;
 842 }
 843
 844 /**
 845  * get_ethtool_stats - get detail statistics.
 846  * @dev: net device
 847  * @stats: statistics info.
 848  * @data: statistics data.
 849  */
 850 void hns_get_ethtool_stats(struct net_device *netdev,
 851                            struct ethtool_stats *stats, u64 *data)
 852 {
 853         u64 *p = data;
 854         struct hns_nic_priv *priv = netdev_priv(netdev);
 855         struct hnae_handle *h = priv->ae_handle;
 856         const struct rtnl_link_stats64 *net_stats;
 857         struct rtnl_link_stats64 temp;
 858
 859         if (!h->dev->ops->get_stats || !h->dev->ops->update_stats) {
 860                 netdev_err(netdev, "get_stats or update_stats is null!\n");
 861                 return;
 862         }
 863
 864         h->dev->ops->update_stats(h, &netdev->stats);
 865
 866         net_stats = dev_get_stats(netdev, &temp);
 867
 868         /* get netdev statistics */
 869         p[0] = net_stats->rx_packets;
 870         p[1] = net_stats->tx_packets;
 871         p[2] = net_stats->rx_bytes;
 872         p[3] = net_stats->tx_bytes;
 873         p[4] = net_stats->rx_errors;
 874         p[5] = net_stats->tx_errors;
 875         p[6] = net_stats->rx_dropped;
 876         p[7] = net_stats->tx_dropped;
 877         p[8] = net_stats->multicast;
 878         p[9] = net_stats->collisions;
 879         p[10] = net_stats->rx_over_errors;
 880         p[11] = net_stats->rx_crc_errors;
 881         p[12] = net_stats->rx_frame_errors;
 882         p[13] = net_stats->rx_fifo_errors;
 883         p[14] = net_stats->rx_missed_errors;
 884         p[15] = net_stats->tx_aborted_errors;
 885         p[16] = net_stats->tx_carrier_errors;
 886         p[17] = net_stats->tx_fifo_errors;
 887         p[18] = net_stats->tx_heartbeat_errors;
 888         p[19] = net_stats->rx_length_errors;
 889         p[20] = net_stats->tx_window_errors;
 890         p[21] = net_stats->rx_compressed;
 891         p[22] = net_stats->tx_compressed;
 892
 893         p[23] = netdev->rx_dropped.counter;
 894         p[24] = netdev->tx_dropped.counter;
 895
 896         p[25] = priv->tx_timeout_count;
 897
 898         /* get driver statistics */
 899         h->dev->ops->get_stats(h, &p[26]);
 900 }
 901
 902 /**
 903  * get_strings: Return a set of strings that describe the requested objects
 904  * @dev: net device
 905  * @stats: string set ID.
 906  * @data: objects data.
 907  */
 908 void hns_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 909 {
 910         struct hns_nic_priv *priv = netdev_priv(netdev);
 911         struct hnae_handle *h = priv->ae_handle;
 912         char *buff = (char *)data;
 913
 914         if (!h->dev->ops->get_strings) {
 915                 netdev_err(netdev, "h->dev->ops->get_strings is null!\n");
 916                 return;
 917         }
 918
 919         if (stringset == ETH_SS_TEST) {
 920                 if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII) {
 921                         memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_MAC],
 922                                ETH_GSTRING_LEN);
 923                         buff += ETH_GSTRING_LEN;
 924                 }
 925                 memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_SERDES],
 926                        ETH_GSTRING_LEN);
 927                 buff += ETH_GSTRING_LEN;
 928                 if ((priv->phy) && (!priv->phy->is_c45))
 929                         memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_PHY],
 930                                ETH_GSTRING_LEN);
 931
 932         } else {
 933                 snprintf(buff, ETH_GSTRING_LEN, "rx_packets");
 934                 buff = buff + ETH_GSTRING_LEN;
 935                 snprintf(buff, ETH_GSTRING_LEN, "tx_packets");
 936                 buff = buff + ETH_GSTRING_LEN;
 937                 snprintf(buff, ETH_GSTRING_LEN, "rx_bytes");
 938                 buff = buff + ETH_GSTRING_LEN;
 939                 snprintf(buff, ETH_GSTRING_LEN, "tx_bytes");
 940                 buff = buff + ETH_GSTRING_LEN;
 941                 snprintf(buff, ETH_GSTRING_LEN, "rx_errors");
 942                 buff = buff + ETH_GSTRING_LEN;
 943                 snprintf(buff, ETH_GSTRING_LEN, "tx_errors");
 944                 buff = buff + ETH_GSTRING_LEN;
 945                 snprintf(buff, ETH_GSTRING_LEN, "rx_dropped");
 946                 buff = buff + ETH_GSTRING_LEN;
 947                 snprintf(buff, ETH_GSTRING_LEN, "tx_dropped");
 948                 buff = buff + ETH_GSTRING_LEN;
 949                 snprintf(buff, ETH_GSTRING_LEN, "multicast");
 950                 buff = buff + ETH_GSTRING_LEN;
 951                 snprintf(buff, ETH_GSTRING_LEN, "collisions");
 952                 buff = buff + ETH_GSTRING_LEN;
 953                 snprintf(buff, ETH_GSTRING_LEN, "rx_over_errors");
 954                 buff = buff + ETH_GSTRING_LEN;
 955                 snprintf(buff, ETH_GSTRING_LEN, "rx_crc_errors");
 956                 buff = buff + ETH_GSTRING_LEN;
 957                 snprintf(buff, ETH_GSTRING_LEN, "rx_frame_errors");
 958                 buff = buff + ETH_GSTRING_LEN;
 959                 snprintf(buff, ETH_GSTRING_LEN, "rx_fifo_errors");
 960                 buff = buff + ETH_GSTRING_LEN;
 961                 snprintf(buff, ETH_GSTRING_LEN, "rx_missed_errors");
 962                 buff = buff + ETH_GSTRING_LEN;
 963                 snprintf(buff, ETH_GSTRING_LEN, "tx_aborted_errors");
 964                 buff = buff + ETH_GSTRING_LEN;
 965                 snprintf(buff, ETH_GSTRING_LEN, "tx_carrier_errors");
 966                 buff = buff + ETH_GSTRING_LEN;
 967                 snprintf(buff, ETH_GSTRING_LEN, "tx_fifo_errors");
 968                 buff = buff + ETH_GSTRING_LEN;
 969                 snprintf(buff, ETH_GSTRING_LEN, "tx_heartbeat_errors");
 970                 buff = buff + ETH_GSTRING_LEN;
 971                 snprintf(buff, ETH_GSTRING_LEN, "rx_length_errors");
 972                 buff = buff + ETH_GSTRING_LEN;
 973                 snprintf(buff, ETH_GSTRING_LEN, "tx_window_errors");
 974                 buff = buff + ETH_GSTRING_LEN;
 975                 snprintf(buff, ETH_GSTRING_LEN, "rx_compressed");
 976                 buff = buff + ETH_GSTRING_LEN;
 977                 snprintf(buff, ETH_GSTRING_LEN, "tx_compressed");
 978                 buff = buff + ETH_GSTRING_LEN;
 979                 snprintf(buff, ETH_GSTRING_LEN, "netdev_rx_dropped");
 980                 buff = buff + ETH_GSTRING_LEN;
 981                 snprintf(buff, ETH_GSTRING_LEN, "netdev_tx_dropped");
 982                 buff = buff + ETH_GSTRING_LEN;
 983
 984                 snprintf(buff, ETH_GSTRING_LEN, "netdev_tx_timeout");
 985                 buff = buff + ETH_GSTRING_LEN;
 986
 987                 h->dev->ops->get_strings(h, stringset, (u8 *)buff);
 988         }
 989 }
 990
 991 /**
 992  * nic_get_sset_count - get string set count witch returned by nic_get_strings.
 993  * @dev: net device
 994  * @stringset: string set index, 0: self test string; 1: statistics string.
 995  *
 996  * Return string set count.
 997  */
 998 int hns_get_sset_count(struct net_device *netdev, int stringset)
 999 {
1000         struct hns_nic_priv *priv = netdev_priv(netdev);
1001         struct hnae_handle *h = priv->ae_handle;
1002         struct hnae_ae_ops *ops = h->dev->ops;
1003
1004         if (!ops->get_sset_count) {
1005                 netdev_err(netdev, "get_sset_count is null!\n");
1006                 return -EOPNOTSUPP;
1007         }
1008         if (stringset == ETH_SS_TEST) {
1009                 u32 cnt = (sizeof(hns_nic_test_strs) / ETH_GSTRING_LEN);
1010
1011                 if (priv->ae_handle->phy_if == PHY_INTERFACE_MODE_XGMII)
1012                         cnt--;
1013
1014                 if ((!priv->phy) || (priv->phy->is_c45))
1015                         cnt--;
1016
1017                 return cnt;
1018         } else {
1019                 return (HNS_NET_STATS_CNT + ops->get_sset_count(h, stringset));
1020         }
1021 }
1022
1023 /**
1024  * hns_phy_led_set - set phy LED status.
1025  * @dev: net device
1026  * @value: LED state.
1027  *
1028  * Return 0 on success, negative on failure.
1029  */
1030 int hns_phy_led_set(struct net_device *netdev, int value)
1031 {
1032         int retval;
1033         struct hns_nic_priv *priv = netdev_priv(netdev);
1034         struct phy_device *phy_dev = priv->phy;
1035
1036         if (!phy_dev->bus) {
1037                 netdev_err(netdev, "phy_dev->bus is null!\n");
1038                 return -EINVAL;
1039         }
1040         retval = mdiobus_write(phy_dev->bus, phy_dev->addr,
1041                                HNS_PHY_PAGE_REG, HNS_PHY_PAGE_LED);
1042         retval = mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_LED_FC_REG,
1043                                value);
1044         retval = mdiobus_write(phy_dev->bus, phy_dev->addr,
1045                                HNS_PHY_PAGE_REG, HNS_PHY_PAGE_COPPER);
1046         if (retval) {
1047                 netdev_err(netdev, "mdiobus_write fail !\n");
1048                 return retval;
1049         }
1050         return 0;
1051 }
1052
1053 /**
1054  * nic_set_phys_id - set phy identify LED.
1055  * @dev: net device
1056  * @state: LED state.
1057  *
1058  * Return 0 on success, negative on failure.
1059  */
1060 int hns_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
1061 {
1062         struct hns_nic_priv *priv = netdev_priv(netdev);
1063         struct hnae_handle *h = priv->ae_handle;
1064         struct phy_device *phy_dev = priv->phy;
1065         int ret;
1066
1067         if (phy_dev)
1068                 switch (state) {
1069                 case ETHTOOL_ID_ACTIVE:
1070                         ret = mdiobus_write(phy_dev->bus, phy_dev->addr,
1071                                             HNS_PHY_PAGE_REG,
1072                                             HNS_PHY_PAGE_LED);
1073                         if (ret)
1074                                 return ret;
1075
1076                         priv->phy_led_val = (u16)mdiobus_read(phy_dev->bus,
1077                                                               phy_dev->addr,
1078                                                               HNS_LED_FC_REG);
1079
1080                         ret = mdiobus_write(phy_dev->bus, phy_dev->addr,
1081                                             HNS_PHY_PAGE_REG,
1082                                             HNS_PHY_PAGE_COPPER);
1083                         if (ret)
1084                                 return ret;
1085                         return 2;
1086                 case ETHTOOL_ID_ON:
1087                         ret = hns_phy_led_set(netdev, HNS_LED_FORCE_ON);
1088                         if (ret)
1089                                 return ret;
1090                         break;
1091                 case ETHTOOL_ID_OFF:
1092                         ret = hns_phy_led_set(netdev, HNS_LED_FORCE_OFF);
1093                         if (ret)
1094                                 return ret;
1095                         break;
1096                 case ETHTOOL_ID_INACTIVE:
1097                         ret = mdiobus_write(phy_dev->bus, phy_dev->addr,
1098                                             HNS_PHY_PAGE_REG,
1099                                             HNS_PHY_PAGE_LED);
1100                         if (ret)
1101                                 return ret;
1102
1103                         ret = mdiobus_write(phy_dev->bus, phy_dev->addr,
1104                                             HNS_LED_FC_REG, priv->phy_led_val);
1105                         if (ret)
1106                                 return ret;
1107
1108                         ret = mdiobus_write(phy_dev->bus, phy_dev->addr,
1109                                             HNS_PHY_PAGE_REG,
1110                                             HNS_PHY_PAGE_COPPER);
1111                         if (ret)
1112                                 return ret;
1113                         break;
1114                 default:
1115                         return -EINVAL;
1116                 }
1117         else
1118                 switch (state) {
1119                 case ETHTOOL_ID_ACTIVE:
1120                         return h->dev->ops->set_led_id(h, HNAE_LED_ACTIVE);
1121                 case ETHTOOL_ID_ON:
1122                         return h->dev->ops->set_led_id(h, HNAE_LED_ON);
1123                 case ETHTOOL_ID_OFF:
1124                         return h->dev->ops->set_led_id(h, HNAE_LED_OFF);
1125                 case ETHTOOL_ID_INACTIVE:
1126                         return h->dev->ops->set_led_id(h, HNAE_LED_INACTIVE);
1127                 default:
1128                         return -EINVAL;
1129                 }
1130
1131         return 0;
1132 }
1133
1134 /**
1135  * hns_get_regs - get net device register
1136  * @dev: net device
1137  * @cmd: ethtool cmd
1138  * @date: register data
1139  */
1140 void hns_get_regs(struct net_device *net_dev, struct ethtool_regs *cmd,
1141                   void *data)
1142 {
1143         struct hns_nic_priv *priv = netdev_priv(net_dev);
1144         struct hnae_ae_ops *ops;
1145
1146         assert(priv || priv->ae_handle);
1147
1148         ops = priv->ae_handle->dev->ops;
1149
1150         cmd->version = HNS_CHIP_VERSION;
1151         if (!ops->get_regs) {
1152                 netdev_err(net_dev, "ops->get_regs is null!\n");
1153                 return;
1154         }
1155         ops->get_regs(priv->ae_handle, data);
1156 }
1157
1158 /**
1159  * nic_get_regs_len - get total register len.
1160  * @dev: net device
1161  *
1162  * Return total register len.
1163  */
1164 static int hns_get_regs_len(struct net_device *net_dev)
1165 {
1166         u32 reg_num;
1167         struct hns_nic_priv *priv = netdev_priv(net_dev);
1168         struct hnae_ae_ops *ops;
1169
1170         assert(priv || priv->ae_handle);
1171
1172         ops = priv->ae_handle->dev->ops;
1173         if (!ops->get_regs_len) {
1174                 netdev_err(net_dev, "ops->get_regs_len is null!\n");
1175                 return -EOPNOTSUPP;
1176         }
1177
1178         reg_num = ops->get_regs_len(priv->ae_handle);
1179         if (reg_num > 0)
1180                 return reg_num * sizeof(u32);
1181         else
1182                 return reg_num; /* error code */
1183 }
1184
1185 /**
1186  * hns_nic_nway_reset - nway reset
1187  * @dev: net device
1188  *
1189  * Return 0 on success, negative on failure
1190  */
1191 static int hns_nic_nway_reset(struct net_device *netdev)
1192 {
1193         int ret = 0;
1194         struct hns_nic_priv *priv = netdev_priv(netdev);
1195         struct phy_device *phy = priv->phy;
1196
1197         if (netif_running(netdev)) {
1198                 if (phy)
1199                         ret = genphy_restart_aneg(phy);
1200         }
1201
1202         return ret;
1203 }
1204
1205 static struct ethtool_ops hns_ethtool_ops = {
1206         .get_drvinfo = hns_nic_get_drvinfo,
1207         .get_link  = hns_nic_get_link,
1208         .get_settings  = hns_nic_get_settings,
1209         .set_settings  = hns_nic_set_settings,
1210         .get_ringparam = hns_get_ringparam,
1211         .get_pauseparam = hns_get_pauseparam,
1212         .set_pauseparam = hns_set_pauseparam,
1213         .get_coalesce = hns_get_coalesce,
1214         .set_coalesce = hns_set_coalesce,
1215         .get_channels = hns_get_channels,
1216         .self_test = hns_nic_self_test,
1217         .get_strings = hns_get_strings,
1218         .get_sset_count = hns_get_sset_count,
1219         .get_ethtool_stats = hns_get_ethtool_stats,
1220         .set_phys_id = hns_set_phys_id,
1221         .get_regs_len = hns_get_regs_len,
1222         .get_regs = hns_get_regs,
1223         .nway_reset = hns_nic_nway_reset,
1224 };
1225
1226 void hns_ethtool_set_ops(struct net_device *ndev)
1227 {
1228         ndev->ethtool_ops = &hns_ethtool_ops;
1229 }