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