drivers/net/pch_gbe/pch_gbe_ethtool.c

   1 /*
   2  * Copyright (C) 1999 - 2010 Intel Corporation.
   3  * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
   4  *
   5  * This code was derived from the Intel e1000e Linux driver.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
  19  */
  20 #include "pch_gbe.h"
  21 #include "pch_gbe_api.h"
  22
  23 /**
  24  * pch_gbe_stats - Stats item infomation
  25  */
  26 struct pch_gbe_stats {
  27         char string[ETH_GSTRING_LEN];
  28         size_t size;
  29         size_t offset;
  30 };
  31
  32 #define PCH_GBE_STAT(m)                                         \
  33 {                                                               \
  34         .string = #m,                                           \
  35         .size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m),       \
  36         .offset = offsetof(struct pch_gbe_hw_stats, m),         \
  37 }
  38
  39 /**
  40  * pch_gbe_gstrings_stats - ethtool information status name list
  41  */
  42 static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
  43         PCH_GBE_STAT(rx_packets),
  44         PCH_GBE_STAT(tx_packets),
  45         PCH_GBE_STAT(rx_bytes),
  46         PCH_GBE_STAT(tx_bytes),
  47         PCH_GBE_STAT(rx_errors),
  48         PCH_GBE_STAT(tx_errors),
  49         PCH_GBE_STAT(rx_dropped),
  50         PCH_GBE_STAT(tx_dropped),
  51         PCH_GBE_STAT(multicast),
  52         PCH_GBE_STAT(collisions),
  53         PCH_GBE_STAT(rx_crc_errors),
  54         PCH_GBE_STAT(rx_frame_errors),
  55         PCH_GBE_STAT(rx_alloc_buff_failed),
  56         PCH_GBE_STAT(tx_length_errors),
  57         PCH_GBE_STAT(tx_aborted_errors),
  58         PCH_GBE_STAT(tx_carrier_errors),
  59         PCH_GBE_STAT(tx_timeout_count),
  60         PCH_GBE_STAT(tx_restart_count),
  61         PCH_GBE_STAT(intr_rx_dsc_empty_count),
  62         PCH_GBE_STAT(intr_rx_frame_err_count),
  63         PCH_GBE_STAT(intr_rx_fifo_err_count),
  64         PCH_GBE_STAT(intr_rx_dma_err_count),
  65         PCH_GBE_STAT(intr_tx_fifo_err_count),
  66         PCH_GBE_STAT(intr_tx_dma_err_count),
  67         PCH_GBE_STAT(intr_tcpip_err_count)
  68 };
  69
  70 #define PCH_GBE_QUEUE_STATS_LEN 0
  71 #define PCH_GBE_GLOBAL_STATS_LEN        ARRAY_SIZE(pch_gbe_gstrings_stats)
  72 #define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)
  73
  74 #define PCH_GBE_MAC_REGS_LEN    (sizeof(struct pch_gbe_regs) / 4)
  75 #define PCH_GBE_REGS_LEN        (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
  76 /**
  77  * pch_gbe_get_settings - Get device-specific settings
  78  * @netdev: Network interface device structure
  79  * @ecmd:   Ethtool command
  80  * Returns
  81  *      0:                      Successful.
  82  *      Negative value:         Failed.
  83  */
  84 static int pch_gbe_get_settings(struct net_device *netdev,
  85                                  struct ethtool_cmd *ecmd)
  86 {
  87         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
  88         int ret;
  89
  90         ret = mii_ethtool_gset(&adapter->mii, ecmd);
  91         ecmd->supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
  92         ecmd->advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
  93
  94         if (!netif_carrier_ok(adapter->netdev))
  95                 ecmd->speed = -1;
  96         return ret;
  97 }
  98
  99 /**
 100  * pch_gbe_set_settings - Set device-specific settings
 101  * @netdev: Network interface device structure
 102  * @ecmd:   Ethtool command
 103  * Returns
 104  *      0:                      Successful.
 105  *      Negative value:         Failed.
 106  */
 107 static int pch_gbe_set_settings(struct net_device *netdev,
 108                                  struct ethtool_cmd *ecmd)
 109 {
 110         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 111         struct pch_gbe_hw *hw = &adapter->hw;
 112         int ret;
 113
 114         pch_gbe_hal_write_phy_reg(hw, MII_BMCR, BMCR_RESET);
 115
 116         if (ecmd->speed == USHRT_MAX) {
 117                 ecmd->speed = SPEED_1000;
 118                 ecmd->duplex = DUPLEX_FULL;
 119         }
 120         ret = mii_ethtool_sset(&adapter->mii, ecmd);
 121         if (ret) {
 122                 pr_err("Error: mii_ethtool_sset\n");
 123                 return ret;
 124         }
 125         hw->mac.link_speed = ecmd->speed;
 126         hw->mac.link_duplex = ecmd->duplex;
 127         hw->phy.autoneg_advertised = ecmd->advertising;
 128         hw->mac.autoneg = ecmd->autoneg;
 129         pch_gbe_hal_phy_sw_reset(hw);
 130
 131         /* reset the link */
 132         if (netif_running(adapter->netdev)) {
 133                 pch_gbe_down(adapter);
 134                 ret = pch_gbe_up(adapter);
 135         } else {
 136                 pch_gbe_reset(adapter);
 137         }
 138         return ret;
 139 }
 140
 141 /**
 142  * pch_gbe_get_regs_len - Report the size of device registers
 143  * @netdev: Network interface device structure
 144  * Returns: the size of device registers.
 145  */
 146 static int pch_gbe_get_regs_len(struct net_device *netdev)
 147 {
 148         return PCH_GBE_REGS_LEN * (int)sizeof(u32);
 149 }
 150
 151 /**
 152  * pch_gbe_get_drvinfo - Report driver information
 153  * @netdev:  Network interface device structure
 154  * @drvinfo: Driver information structure
 155  */
 156 static void pch_gbe_get_drvinfo(struct net_device *netdev,
 157                                  struct ethtool_drvinfo *drvinfo)
 158 {
 159         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 160
 161         strcpy(drvinfo->driver, KBUILD_MODNAME);
 162         strcpy(drvinfo->version, pch_driver_version);
 163         strcpy(drvinfo->fw_version, "N/A");
 164         strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
 165         drvinfo->regdump_len = pch_gbe_get_regs_len(netdev);
 166 }
 167
 168 /**
 169  * pch_gbe_get_regs - Get device registers
 170  * @netdev: Network interface device structure
 171  * @regs:   Ethtool register structure
 172  * @p:      Buffer pointer of read device register date
 173  */
 174 static void pch_gbe_get_regs(struct net_device *netdev,
 175                                 struct ethtool_regs *regs, void *p)
 176 {
 177         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 178         struct pch_gbe_hw *hw = &adapter->hw;
 179         struct pci_dev *pdev = adapter->pdev;
 180         u32 *regs_buff = p;
 181         u16 i, tmp;
 182
 183         regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
 184         for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
 185                 *regs_buff++ = ioread32(&hw->reg->INT_ST + i);
 186         /* PHY register */
 187         for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
 188                 pch_gbe_hal_read_phy_reg(&adapter->hw, i, &tmp);
 189                 *regs_buff++ = tmp;
 190         }
 191 }
 192
 193 /**
 194  * pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
 195  * @netdev: Network interface device structure
 196  * @wol:    Wake-on-Lan information
 197  */
 198 static void pch_gbe_get_wol(struct net_device *netdev,
 199                                 struct ethtool_wolinfo *wol)
 200 {
 201         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 202
 203         wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
 204         wol->wolopts = 0;
 205
 206         if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
 207                 wol->wolopts |= WAKE_UCAST;
 208         if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
 209                 wol->wolopts |= WAKE_MCAST;
 210         if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
 211                 wol->wolopts |= WAKE_BCAST;
 212         if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
 213                 wol->wolopts |= WAKE_MAGIC;
 214 }
 215
 216 /**
 217  * pch_gbe_set_wol - Turn Wake-on-Lan on or off
 218  * @netdev: Network interface device structure
 219  * @wol:    Pointer of wake-on-Lan information straucture
 220  * Returns
 221  *      0:                      Successful.
 222  *      Negative value:         Failed.
 223  */
 224 static int pch_gbe_set_wol(struct net_device *netdev,
 225                                 struct ethtool_wolinfo *wol)
 226 {
 227         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 228
 229         if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
 230                 return -EOPNOTSUPP;
 231         /* these settings will always override what we currently have */
 232         adapter->wake_up_evt = 0;
 233
 234         if ((wol->wolopts & WAKE_UCAST))
 235                 adapter->wake_up_evt |= PCH_GBE_WLC_IND;
 236         if ((wol->wolopts & WAKE_MCAST))
 237                 adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
 238         if ((wol->wolopts & WAKE_BCAST))
 239                 adapter->wake_up_evt |= PCH_GBE_WLC_BR;
 240         if ((wol->wolopts & WAKE_MAGIC))
 241                 adapter->wake_up_evt |= PCH_GBE_WLC_MP;
 242         return 0;
 243 }
 244
 245 /**
 246  * pch_gbe_nway_reset - Restart autonegotiation
 247  * @netdev: Network interface device structure
 248  * Returns
 249  *      0:                      Successful.
 250  *      Negative value:         Failed.
 251  */
 252 static int pch_gbe_nway_reset(struct net_device *netdev)
 253 {
 254         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 255
 256         return mii_nway_restart(&adapter->mii);
 257 }
 258
 259 /**
 260  * pch_gbe_get_ringparam - Report ring sizes
 261  * @netdev:  Network interface device structure
 262  * @ring:    Ring param structure
 263  */
 264 static void pch_gbe_get_ringparam(struct net_device *netdev,
 265                                         struct ethtool_ringparam *ring)
 266 {
 267         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 268         struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
 269         struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;
 270
 271         ring->rx_max_pending = PCH_GBE_MAX_RXD;
 272         ring->tx_max_pending = PCH_GBE_MAX_TXD;
 273         ring->rx_mini_max_pending = 0;
 274         ring->rx_jumbo_max_pending = 0;
 275         ring->rx_pending = rxdr->count;
 276         ring->tx_pending = txdr->count;
 277         ring->rx_mini_pending = 0;
 278         ring->rx_jumbo_pending = 0;
 279 }
 280
 281 /**
 282  * pch_gbe_set_ringparam - Set ring sizes
 283  * @netdev:  Network interface device structure
 284  * @ring:    Ring param structure
 285  * Returns
 286  *      0:                      Successful.
 287  *      Negative value:         Failed.
 288  */
 289 static int pch_gbe_set_ringparam(struct net_device *netdev,
 290                                         struct ethtool_ringparam *ring)
 291 {
 292         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 293         struct pch_gbe_tx_ring *txdr, *tx_old;
 294         struct pch_gbe_rx_ring *rxdr, *rx_old;
 295         int tx_ring_size, rx_ring_size;
 296         int err = 0;
 297
 298         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 299                 return -EINVAL;
 300         tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
 301         rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);
 302
 303         if ((netif_running(adapter->netdev)))
 304                 pch_gbe_down(adapter);
 305         tx_old = adapter->tx_ring;
 306         rx_old = adapter->rx_ring;
 307
 308         txdr = kzalloc(tx_ring_size, GFP_KERNEL);
 309         if (!txdr) {
 310                 err = -ENOMEM;
 311                 goto err_alloc_tx;
 312         }
 313         rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
 314         if (!rxdr) {
 315                 err = -ENOMEM;
 316                 goto err_alloc_rx;
 317         }
 318         adapter->tx_ring = txdr;
 319         adapter->rx_ring = rxdr;
 320
 321         rxdr->count =
 322                 clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
 323         rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);
 324
 325         txdr->count =
 326                 clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
 327         txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);
 328
 329         if ((netif_running(adapter->netdev))) {
 330                 /* Try to get new resources before deleting old */
 331                 err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
 332                 if (err)
 333                         goto err_setup_rx;
 334                 err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
 335                 if (err)
 336                         goto err_setup_tx;
 337                 /* save the new, restore the old in order to free it,
 338                  * then restore the new back again */
 339 #ifdef RINGFREE
 340                 adapter->rx_ring = rx_old;
 341                 adapter->tx_ring = tx_old;
 342                 pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
 343                 pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
 344                 kfree(tx_old);
 345                 kfree(rx_old);
 346                 adapter->rx_ring = rxdr;
 347                 adapter->tx_ring = txdr;
 348 #else
 349                 pch_gbe_free_rx_resources(adapter, rx_old);
 350                 pch_gbe_free_tx_resources(adapter, tx_old);
 351                 kfree(tx_old);
 352                 kfree(rx_old);
 353                 adapter->rx_ring = rxdr;
 354                 adapter->tx_ring = txdr;
 355 #endif
 356                 err = pch_gbe_up(adapter);
 357         }
 358         return err;
 359
 360 err_setup_tx:
 361         pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
 362 err_setup_rx:
 363         adapter->rx_ring = rx_old;
 364         adapter->tx_ring = tx_old;
 365         kfree(rxdr);
 366 err_alloc_rx:
 367         kfree(txdr);
 368 err_alloc_tx:
 369         if (netif_running(adapter->netdev))
 370                 pch_gbe_up(adapter);
 371         return err;
 372 }
 373
 374 /**
 375  * pch_gbe_get_pauseparam - Report pause parameters
 376  * @netdev:  Network interface device structure
 377  * @pause:   Pause parameters structure
 378  */
 379 static void pch_gbe_get_pauseparam(struct net_device *netdev,
 380                                        struct ethtool_pauseparam *pause)
 381 {
 382         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 383         struct pch_gbe_hw *hw = &adapter->hw;
 384
 385         pause->autoneg =
 386             ((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 387
 388         if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
 389                 pause->rx_pause = 1;
 390         } else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
 391                 pause->tx_pause = 1;
 392         } else if (hw->mac.fc == PCH_GBE_FC_FULL) {
 393                 pause->rx_pause = 1;
 394                 pause->tx_pause = 1;
 395         }
 396 }
 397
 398 /**
 399  * pch_gbe_set_pauseparam - Set pause paramters
 400  * @netdev:  Network interface device structure
 401  * @pause:   Pause parameters structure
 402  * Returns
 403  *      0:                      Successful.
 404  *      Negative value:         Failed.
 405  */
 406 static int pch_gbe_set_pauseparam(struct net_device *netdev,
 407                                        struct ethtool_pauseparam *pause)
 408 {
 409         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 410         struct pch_gbe_hw *hw = &adapter->hw;
 411         int ret = 0;
 412
 413         hw->mac.fc_autoneg = pause->autoneg;
 414         if ((pause->rx_pause) && (pause->tx_pause))
 415                 hw->mac.fc = PCH_GBE_FC_FULL;
 416         else if ((pause->rx_pause) && (!pause->tx_pause))
 417                 hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
 418         else if ((!pause->rx_pause) && (pause->tx_pause))
 419                 hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
 420         else if ((!pause->rx_pause) && (!pause->tx_pause))
 421                 hw->mac.fc = PCH_GBE_FC_NONE;
 422
 423         if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
 424                 if ((netif_running(adapter->netdev))) {
 425                         pch_gbe_down(adapter);
 426                         ret = pch_gbe_up(adapter);
 427                 } else {
 428                         pch_gbe_reset(adapter);
 429                 }
 430         } else {
 431                 ret = pch_gbe_mac_force_mac_fc(hw);
 432         }
 433         return ret;
 434 }
 435
 436 /**
 437  * pch_gbe_get_rx_csum - Report whether receive checksums are turned on or off
 438  * @netdev:  Network interface device structure
 439  * Returns
 440  *      true(1):  Checksum On
 441  *      false(0): Checksum Off
 442  */
 443 static u32 pch_gbe_get_rx_csum(struct net_device *netdev)
 444 {
 445         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 446
 447         return adapter->rx_csum;
 448 }
 449
 450 /**
 451  * pch_gbe_set_rx_csum - Turn receive checksum on or off
 452  * @netdev:  Network interface device structure
 453  * @data:    Checksum On[true] or Off[false]
 454  * Returns
 455  *      0:                      Successful.
 456  *      Negative value:         Failed.
 457  */
 458 static int pch_gbe_set_rx_csum(struct net_device *netdev, u32 data)
 459 {
 460         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 461
 462         adapter->rx_csum = data;
 463         if ((netif_running(netdev)))
 464                 pch_gbe_reinit_locked(adapter);
 465         else
 466                 pch_gbe_reset(adapter);
 467
 468         return 0;
 469 }
 470
 471 /**
 472  * pch_gbe_set_tx_csum - Turn transmit checksums on or off
 473  * @netdev: Network interface device structure
 474  * @data:   Checksum on[true] or off[false]
 475  * Returns
 476  *      0:                      Successful.
 477  *      Negative value:         Failed.
 478  */
 479 static int pch_gbe_set_tx_csum(struct net_device *netdev, u32 data)
 480 {
 481         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 482
 483         adapter->tx_csum = data;
 484         return ethtool_op_set_tx_ipv6_csum(netdev, data);
 485 }
 486
 487 /**
 488  * pch_gbe_get_strings - Return a set of strings that describe the requested
 489  *                       objects
 490  * @netdev:    Network interface device structure
 491  * @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
 492  * @data:      Pointer of read string data.
 493  */
 494 static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
 495                                         u8 *data)
 496 {
 497         u8 *p = data;
 498         int i;
 499
 500         switch (stringset) {
 501         case (u32) ETH_SS_STATS:
 502                 for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
 503                         memcpy(p, pch_gbe_gstrings_stats[i].string,
 504                                ETH_GSTRING_LEN);
 505                         p += ETH_GSTRING_LEN;
 506                 }
 507                 break;
 508         }
 509 }
 510
 511 /**
 512  * pch_gbe_get_ethtool_stats - Return statistics about the device
 513  * @netdev: Network interface device structure
 514  * @stats:  Ethtool statue structure
 515  * @data:   Pointer of read status area
 516  */
 517 static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
 518                                   struct ethtool_stats *stats, u64 *data)
 519 {
 520         struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 521         int i;
 522         const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
 523         char *hw_stats = (char *)&adapter->stats;
 524
 525         pch_gbe_update_stats(adapter);
 526         for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
 527                 char *p = hw_stats + gstats->offset;
 528                 data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
 529                 gstats++;
 530         }
 531 }
 532
 533 static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
 534 {
 535         switch (sset) {
 536         case ETH_SS_STATS:
 537                 return PCH_GBE_STATS_LEN;
 538         default:
 539                 return -EOPNOTSUPP;
 540         }
 541 }
 542
 543 static const struct ethtool_ops pch_gbe_ethtool_ops = {
 544         .get_settings = pch_gbe_get_settings,
 545         .set_settings = pch_gbe_set_settings,
 546         .get_drvinfo = pch_gbe_get_drvinfo,
 547         .get_regs_len = pch_gbe_get_regs_len,
 548         .get_regs = pch_gbe_get_regs,
 549         .get_wol = pch_gbe_get_wol,
 550         .set_wol = pch_gbe_set_wol,
 551         .nway_reset = pch_gbe_nway_reset,
 552         .get_link = ethtool_op_get_link,
 553         .get_ringparam = pch_gbe_get_ringparam,
 554         .set_ringparam = pch_gbe_set_ringparam,
 555         .get_pauseparam = pch_gbe_get_pauseparam,
 556         .set_pauseparam = pch_gbe_set_pauseparam,
 557         .get_rx_csum = pch_gbe_get_rx_csum,
 558         .set_rx_csum = pch_gbe_set_rx_csum,
 559         .set_tx_csum = pch_gbe_set_tx_csum,
 560         .get_strings = pch_gbe_get_strings,
 561         .get_ethtool_stats = pch_gbe_get_ethtool_stats,
 562         .get_sset_count = pch_gbe_get_sset_count,
 563 };
 564
 565 void pch_gbe_set_ethtool_ops(struct net_device *netdev)
 566 {
 567         SET_ETHTOOL_OPS(netdev, &pch_gbe_ethtool_ops);
 568 }