drivers/net/ethernet/intel/igc/igc_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c)  2018 Intel Corporation */
   3
   4 /* ethtool support for igc */
   5 #include <linux/if_vlan.h>
   6 #include <linux/pm_runtime.h>
   7 #include <linux/mdio.h>
   8
   9 #include "igc.h"
  10 #include "igc_diag.h"
  11
  12 /* forward declaration */
  13 struct igc_stats {
  14         char stat_string[ETH_GSTRING_LEN];
  15         int sizeof_stat;
  16         int stat_offset;
  17 };
  18
  19 #define IGC_STAT(_name, _stat) { \
  20         .stat_string = _name, \
  21         .sizeof_stat = sizeof_field(struct igc_adapter, _stat), \
  22         .stat_offset = offsetof(struct igc_adapter, _stat) \
  23 }
  24
  25 static const struct igc_stats igc_gstrings_stats[] = {
  26         IGC_STAT("rx_packets", stats.gprc),
  27         IGC_STAT("tx_packets", stats.gptc),
  28         IGC_STAT("rx_bytes", stats.gorc),
  29         IGC_STAT("tx_bytes", stats.gotc),
  30         IGC_STAT("rx_broadcast", stats.bprc),
  31         IGC_STAT("tx_broadcast", stats.bptc),
  32         IGC_STAT("rx_multicast", stats.mprc),
  33         IGC_STAT("tx_multicast", stats.mptc),
  34         IGC_STAT("multicast", stats.mprc),
  35         IGC_STAT("collisions", stats.colc),
  36         IGC_STAT("rx_crc_errors", stats.crcerrs),
  37         IGC_STAT("rx_no_buffer_count", stats.rnbc),
  38         IGC_STAT("rx_missed_errors", stats.mpc),
  39         IGC_STAT("tx_aborted_errors", stats.ecol),
  40         IGC_STAT("tx_carrier_errors", stats.tncrs),
  41         IGC_STAT("tx_window_errors", stats.latecol),
  42         IGC_STAT("tx_abort_late_coll", stats.latecol),
  43         IGC_STAT("tx_deferred_ok", stats.dc),
  44         IGC_STAT("tx_single_coll_ok", stats.scc),
  45         IGC_STAT("tx_multi_coll_ok", stats.mcc),
  46         IGC_STAT("tx_timeout_count", tx_timeout_count),
  47         IGC_STAT("rx_long_length_errors", stats.roc),
  48         IGC_STAT("rx_short_length_errors", stats.ruc),
  49         IGC_STAT("rx_align_errors", stats.algnerrc),
  50         IGC_STAT("tx_tcp_seg_good", stats.tsctc),
  51         IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
  52         IGC_STAT("rx_flow_control_xon", stats.xonrxc),
  53         IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
  54         IGC_STAT("tx_flow_control_xon", stats.xontxc),
  55         IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
  56         IGC_STAT("rx_long_byte_count", stats.gorc),
  57         IGC_STAT("tx_dma_out_of_sync", stats.doosync),
  58         IGC_STAT("tx_smbus", stats.mgptc),
  59         IGC_STAT("rx_smbus", stats.mgprc),
  60         IGC_STAT("dropped_smbus", stats.mgpdc),
  61         IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
  62         IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
  63         IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
  64         IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
  65         IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
  66         IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
  67         IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
  68         IGC_STAT("tx_lpi_counter", stats.tlpic),
  69         IGC_STAT("rx_lpi_counter", stats.rlpic),
  70         IGC_STAT("qbv_config_change_errors", qbv_config_change_errors),
  71 };
  72
  73 #define IGC_NETDEV_STAT(_net_stat) { \
  74         .stat_string = __stringify(_net_stat), \
  75         .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
  76         .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
  77 }
  78
  79 static const struct igc_stats igc_gstrings_net_stats[] = {
  80         IGC_NETDEV_STAT(rx_errors),
  81         IGC_NETDEV_STAT(tx_errors),
  82         IGC_NETDEV_STAT(tx_dropped),
  83         IGC_NETDEV_STAT(rx_length_errors),
  84         IGC_NETDEV_STAT(rx_over_errors),
  85         IGC_NETDEV_STAT(rx_frame_errors),
  86         IGC_NETDEV_STAT(rx_fifo_errors),
  87         IGC_NETDEV_STAT(tx_fifo_errors),
  88         IGC_NETDEV_STAT(tx_heartbeat_errors)
  89 };
  90
  91 enum igc_diagnostics_results {
  92         TEST_REG = 0,
  93         TEST_EEP,
  94         TEST_IRQ,
  95         TEST_LOOP,
  96         TEST_LINK
  97 };
  98
  99 static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
 100         [TEST_REG]  = "Register test  (offline)",
 101         [TEST_EEP]  = "Eeprom test    (offline)",
 102         [TEST_IRQ]  = "Interrupt test (offline)",
 103         [TEST_LOOP] = "Loopback test  (offline)",
 104         [TEST_LINK] = "Link test   (on/offline)"
 105 };
 106
 107 #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
 108
 109 #define IGC_GLOBAL_STATS_LEN    \
 110         (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
 111 #define IGC_NETDEV_STATS_LEN    \
 112         (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
 113 #define IGC_RX_QUEUE_STATS_LEN \
 114         (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
 115 #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
 116 #define IGC_QUEUE_STATS_LEN \
 117         ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
 118           IGC_RX_QUEUE_STATS_LEN) + \
 119          (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
 120           IGC_TX_QUEUE_STATS_LEN))
 121 #define IGC_STATS_LEN \
 122         (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
 123
 124 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
 125 #define IGC_PRIV_FLAGS_LEGACY_RX        BIT(0)
 126         "legacy-rx",
 127 };
 128
 129 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
 130
 131 static void igc_ethtool_get_drvinfo(struct net_device *netdev,
 132                                     struct ethtool_drvinfo *drvinfo)
 133 {
 134         struct igc_adapter *adapter = netdev_priv(netdev);
 135         struct igc_hw *hw = &adapter->hw;
 136         u16 nvm_version = 0;
 137         u16 gphy_version;
 138
 139         strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
 140
 141         /* NVM image version is reported as firmware version for i225 device */
 142         hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
 143
 144         /* gPHY firmware version is reported as PHY FW version */
 145         gphy_version = igc_read_phy_fw_version(hw);
 146
 147         scnprintf(adapter->fw_version,
 148                   sizeof(adapter->fw_version),
 149                   "%x:%x",
 150                   nvm_version,
 151                   gphy_version);
 152
 153         strscpy(drvinfo->fw_version, adapter->fw_version,
 154                 sizeof(drvinfo->fw_version));
 155
 156         strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
 157                 sizeof(drvinfo->bus_info));
 158
 159         drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
 160 }
 161
 162 static int igc_ethtool_get_regs_len(struct net_device *netdev)
 163 {
 164         return IGC_REGS_LEN * sizeof(u32);
 165 }
 166
 167 static void igc_ethtool_get_regs(struct net_device *netdev,
 168                                  struct ethtool_regs *regs, void *p)
 169 {
 170         struct igc_adapter *adapter = netdev_priv(netdev);
 171         struct igc_hw *hw = &adapter->hw;
 172         u32 *regs_buff = p;
 173         u8 i;
 174
 175         memset(p, 0, IGC_REGS_LEN * sizeof(u32));
 176
 177         regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
 178
 179         /* General Registers */
 180         regs_buff[0] = rd32(IGC_CTRL);
 181         regs_buff[1] = rd32(IGC_STATUS);
 182         regs_buff[2] = rd32(IGC_CTRL_EXT);
 183         regs_buff[3] = rd32(IGC_MDIC);
 184         regs_buff[4] = rd32(IGC_CONNSW);
 185
 186         /* NVM Register */
 187         regs_buff[5] = rd32(IGC_EECD);
 188
 189         /* Interrupt */
 190         /* Reading EICS for EICR because they read the
 191          * same but EICS does not clear on read
 192          */
 193         regs_buff[6] = rd32(IGC_EICS);
 194         regs_buff[7] = rd32(IGC_EICS);
 195         regs_buff[8] = rd32(IGC_EIMS);
 196         regs_buff[9] = rd32(IGC_EIMC);
 197         regs_buff[10] = rd32(IGC_EIAC);
 198         regs_buff[11] = rd32(IGC_EIAM);
 199         /* Reading ICS for ICR because they read the
 200          * same but ICS does not clear on read
 201          */
 202         regs_buff[12] = rd32(IGC_ICS);
 203         regs_buff[13] = rd32(IGC_ICS);
 204         regs_buff[14] = rd32(IGC_IMS);
 205         regs_buff[15] = rd32(IGC_IMC);
 206         regs_buff[16] = rd32(IGC_IAC);
 207         regs_buff[17] = rd32(IGC_IAM);
 208
 209         /* Flow Control */
 210         regs_buff[18] = rd32(IGC_FCAL);
 211         regs_buff[19] = rd32(IGC_FCAH);
 212         regs_buff[20] = rd32(IGC_FCTTV);
 213         regs_buff[21] = rd32(IGC_FCRTL);
 214         regs_buff[22] = rd32(IGC_FCRTH);
 215         regs_buff[23] = rd32(IGC_FCRTV);
 216
 217         /* Receive */
 218         regs_buff[24] = rd32(IGC_RCTL);
 219         regs_buff[25] = rd32(IGC_RXCSUM);
 220         regs_buff[26] = rd32(IGC_RLPML);
 221         regs_buff[27] = rd32(IGC_RFCTL);
 222
 223         /* Transmit */
 224         regs_buff[28] = rd32(IGC_TCTL);
 225         regs_buff[29] = rd32(IGC_TIPG);
 226
 227         /* Wake Up */
 228
 229         /* MAC */
 230
 231         /* Statistics */
 232         regs_buff[30] = adapter->stats.crcerrs;
 233         regs_buff[31] = adapter->stats.algnerrc;
 234         regs_buff[32] = adapter->stats.symerrs;
 235         regs_buff[33] = adapter->stats.rxerrc;
 236         regs_buff[34] = adapter->stats.mpc;
 237         regs_buff[35] = adapter->stats.scc;
 238         regs_buff[36] = adapter->stats.ecol;
 239         regs_buff[37] = adapter->stats.mcc;
 240         regs_buff[38] = adapter->stats.latecol;
 241         regs_buff[39] = adapter->stats.colc;
 242         regs_buff[40] = adapter->stats.dc;
 243         regs_buff[41] = adapter->stats.tncrs;
 244         regs_buff[42] = adapter->stats.sec;
 245         regs_buff[43] = adapter->stats.htdpmc;
 246         regs_buff[44] = adapter->stats.rlec;
 247         regs_buff[45] = adapter->stats.xonrxc;
 248         regs_buff[46] = adapter->stats.xontxc;
 249         regs_buff[47] = adapter->stats.xoffrxc;
 250         regs_buff[48] = adapter->stats.xofftxc;
 251         regs_buff[49] = adapter->stats.fcruc;
 252         regs_buff[50] = adapter->stats.prc64;
 253         regs_buff[51] = adapter->stats.prc127;
 254         regs_buff[52] = adapter->stats.prc255;
 255         regs_buff[53] = adapter->stats.prc511;
 256         regs_buff[54] = adapter->stats.prc1023;
 257         regs_buff[55] = adapter->stats.prc1522;
 258         regs_buff[56] = adapter->stats.gprc;
 259         regs_buff[57] = adapter->stats.bprc;
 260         regs_buff[58] = adapter->stats.mprc;
 261         regs_buff[59] = adapter->stats.gptc;
 262         regs_buff[60] = adapter->stats.gorc;
 263         regs_buff[61] = adapter->stats.gotc;
 264         regs_buff[62] = adapter->stats.rnbc;
 265         regs_buff[63] = adapter->stats.ruc;
 266         regs_buff[64] = adapter->stats.rfc;
 267         regs_buff[65] = adapter->stats.roc;
 268         regs_buff[66] = adapter->stats.rjc;
 269         regs_buff[67] = adapter->stats.mgprc;
 270         regs_buff[68] = adapter->stats.mgpdc;
 271         regs_buff[69] = adapter->stats.mgptc;
 272         regs_buff[70] = adapter->stats.tor;
 273         regs_buff[71] = adapter->stats.tot;
 274         regs_buff[72] = adapter->stats.tpr;
 275         regs_buff[73] = adapter->stats.tpt;
 276         regs_buff[74] = adapter->stats.ptc64;
 277         regs_buff[75] = adapter->stats.ptc127;
 278         regs_buff[76] = adapter->stats.ptc255;
 279         regs_buff[77] = adapter->stats.ptc511;
 280         regs_buff[78] = adapter->stats.ptc1023;
 281         regs_buff[79] = adapter->stats.ptc1522;
 282         regs_buff[80] = adapter->stats.mptc;
 283         regs_buff[81] = adapter->stats.bptc;
 284         regs_buff[82] = adapter->stats.tsctc;
 285         regs_buff[83] = adapter->stats.iac;
 286         regs_buff[84] = adapter->stats.rpthc;
 287         regs_buff[85] = adapter->stats.hgptc;
 288         regs_buff[86] = adapter->stats.hgorc;
 289         regs_buff[87] = adapter->stats.hgotc;
 290         regs_buff[88] = adapter->stats.lenerrs;
 291         regs_buff[89] = adapter->stats.scvpc;
 292         regs_buff[90] = adapter->stats.hrmpc;
 293
 294         for (i = 0; i < 4; i++)
 295                 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
 296         for (i = 0; i < 4; i++)
 297                 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
 298         for (i = 0; i < 4; i++)
 299                 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
 300         for (i = 0; i < 4; i++)
 301                 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
 302         for (i = 0; i < 4; i++)
 303                 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
 304         for (i = 0; i < 4; i++)
 305                 regs_buff[111 + i] = rd32(IGC_RDH(i));
 306         for (i = 0; i < 4; i++)
 307                 regs_buff[115 + i] = rd32(IGC_RDT(i));
 308         for (i = 0; i < 4; i++)
 309                 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
 310
 311         for (i = 0; i < 10; i++)
 312                 regs_buff[123 + i] = rd32(IGC_EITR(i));
 313         for (i = 0; i < 16; i++)
 314                 regs_buff[139 + i] = rd32(IGC_RAL(i));
 315         for (i = 0; i < 16; i++)
 316                 regs_buff[145 + i] = rd32(IGC_RAH(i));
 317
 318         for (i = 0; i < 4; i++)
 319                 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
 320         for (i = 0; i < 4; i++)
 321                 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
 322         for (i = 0; i < 4; i++)
 323                 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
 324         for (i = 0; i < 4; i++)
 325                 regs_buff[160 + i] = rd32(IGC_TDH(i));
 326         for (i = 0; i < 4; i++)
 327                 regs_buff[164 + i] = rd32(IGC_TDT(i));
 328         for (i = 0; i < 4; i++)
 329                 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
 330
 331         /* XXX: Due to a bug few lines above, RAL and RAH registers are
 332          * overwritten. To preserve the ABI, we write these registers again in
 333          * regs_buff.
 334          */
 335         for (i = 0; i < 16; i++)
 336                 regs_buff[172 + i] = rd32(IGC_RAL(i));
 337         for (i = 0; i < 16; i++)
 338                 regs_buff[188 + i] = rd32(IGC_RAH(i));
 339
 340         regs_buff[204] = rd32(IGC_VLANPQF);
 341
 342         for (i = 0; i < 8; i++)
 343                 regs_buff[205 + i] = rd32(IGC_ETQF(i));
 344
 345         regs_buff[213] = adapter->stats.tlpic;
 346         regs_buff[214] = adapter->stats.rlpic;
 347 }
 348
 349 static void igc_ethtool_get_wol(struct net_device *netdev,
 350                                 struct ethtool_wolinfo *wol)
 351 {
 352         struct igc_adapter *adapter = netdev_priv(netdev);
 353
 354         wol->wolopts = 0;
 355
 356         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 357                 return;
 358
 359         wol->supported = WAKE_UCAST | WAKE_MCAST |
 360                          WAKE_BCAST | WAKE_MAGIC |
 361                          WAKE_PHY;
 362
 363         /* apply any specific unsupported masks here */
 364         switch (adapter->hw.device_id) {
 365         default:
 366                 break;
 367         }
 368
 369         if (adapter->wol & IGC_WUFC_EX)
 370                 wol->wolopts |= WAKE_UCAST;
 371         if (adapter->wol & IGC_WUFC_MC)
 372                 wol->wolopts |= WAKE_MCAST;
 373         if (adapter->wol & IGC_WUFC_BC)
 374                 wol->wolopts |= WAKE_BCAST;
 375         if (adapter->wol & IGC_WUFC_MAG)
 376                 wol->wolopts |= WAKE_MAGIC;
 377         if (adapter->wol & IGC_WUFC_LNKC)
 378                 wol->wolopts |= WAKE_PHY;
 379 }
 380
 381 static int igc_ethtool_set_wol(struct net_device *netdev,
 382                                struct ethtool_wolinfo *wol)
 383 {
 384         struct igc_adapter *adapter = netdev_priv(netdev);
 385
 386         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
 387                 return -EOPNOTSUPP;
 388
 389         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 390                 return wol->wolopts ? -EOPNOTSUPP : 0;
 391
 392         /* these settings will always override what we currently have */
 393         adapter->wol = 0;
 394
 395         if (wol->wolopts & WAKE_UCAST)
 396                 adapter->wol |= IGC_WUFC_EX;
 397         if (wol->wolopts & WAKE_MCAST)
 398                 adapter->wol |= IGC_WUFC_MC;
 399         if (wol->wolopts & WAKE_BCAST)
 400                 adapter->wol |= IGC_WUFC_BC;
 401         if (wol->wolopts & WAKE_MAGIC)
 402                 adapter->wol |= IGC_WUFC_MAG;
 403         if (wol->wolopts & WAKE_PHY)
 404                 adapter->wol |= IGC_WUFC_LNKC;
 405         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 406
 407         return 0;
 408 }
 409
 410 static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
 411 {
 412         struct igc_adapter *adapter = netdev_priv(netdev);
 413
 414         return adapter->msg_enable;
 415 }
 416
 417 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
 418 {
 419         struct igc_adapter *adapter = netdev_priv(netdev);
 420
 421         adapter->msg_enable = data;
 422 }
 423
 424 static int igc_ethtool_nway_reset(struct net_device *netdev)
 425 {
 426         struct igc_adapter *adapter = netdev_priv(netdev);
 427
 428         if (netif_running(netdev))
 429                 igc_reinit_locked(adapter);
 430         return 0;
 431 }
 432
 433 static u32 igc_ethtool_get_link(struct net_device *netdev)
 434 {
 435         struct igc_adapter *adapter = netdev_priv(netdev);
 436         struct igc_mac_info *mac = &adapter->hw.mac;
 437
 438         /* If the link is not reported up to netdev, interrupts are disabled,
 439          * and so the physical link state may have changed since we last
 440          * looked. Set get_link_status to make sure that the true link
 441          * state is interrogated, rather than pulling a cached and possibly
 442          * stale link state from the driver.
 443          */
 444         if (!netif_carrier_ok(netdev))
 445                 mac->get_link_status = 1;
 446
 447         return igc_has_link(adapter);
 448 }
 449
 450 static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
 451 {
 452         struct igc_adapter *adapter = netdev_priv(netdev);
 453
 454         return adapter->hw.nvm.word_size * 2;
 455 }
 456
 457 static int igc_ethtool_get_eeprom(struct net_device *netdev,
 458                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 459 {
 460         struct igc_adapter *adapter = netdev_priv(netdev);
 461         struct igc_hw *hw = &adapter->hw;
 462         int first_word, last_word;
 463         u16 *eeprom_buff;
 464         int ret_val = 0;
 465         u16 i;
 466
 467         if (eeprom->len == 0)
 468                 return -EINVAL;
 469
 470         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 471
 472         first_word = eeprom->offset >> 1;
 473         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 474
 475         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 476                                     GFP_KERNEL);
 477         if (!eeprom_buff)
 478                 return -ENOMEM;
 479
 480         if (hw->nvm.type == igc_nvm_eeprom_spi) {
 481                 ret_val = hw->nvm.ops.read(hw, first_word,
 482                                            last_word - first_word + 1,
 483                                            eeprom_buff);
 484         } else {
 485                 for (i = 0; i < last_word - first_word + 1; i++) {
 486                         ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 487                                                    &eeprom_buff[i]);
 488                         if (ret_val)
 489                                 break;
 490                 }
 491         }
 492
 493         /* Device's eeprom is always little-endian, word addressable */
 494         for (i = 0; i < last_word - first_word + 1; i++)
 495                 le16_to_cpus(&eeprom_buff[i]);
 496
 497         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 498                eeprom->len);
 499         kfree(eeprom_buff);
 500
 501         return ret_val;
 502 }
 503
 504 static int igc_ethtool_set_eeprom(struct net_device *netdev,
 505                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 506 {
 507         struct igc_adapter *adapter = netdev_priv(netdev);
 508         struct igc_hw *hw = &adapter->hw;
 509         int max_len, first_word, last_word, ret_val = 0;
 510         u16 *eeprom_buff;
 511         void *ptr;
 512         u16 i;
 513
 514         if (eeprom->len == 0)
 515                 return -EOPNOTSUPP;
 516
 517         if (hw->mac.type >= igc_i225 &&
 518             !igc_get_flash_presence_i225(hw)) {
 519                 return -EOPNOTSUPP;
 520         }
 521
 522         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 523                 return -EFAULT;
 524
 525         max_len = hw->nvm.word_size * 2;
 526
 527         first_word = eeprom->offset >> 1;
 528         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 529         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 530         if (!eeprom_buff)
 531                 return -ENOMEM;
 532
 533         ptr = (void *)eeprom_buff;
 534
 535         if (eeprom->offset & 1) {
 536                 /* need read/modify/write of first changed EEPROM word
 537                  * only the second byte of the word is being modified
 538                  */
 539                 ret_val = hw->nvm.ops.read(hw, first_word, 1,
 540                                             &eeprom_buff[0]);
 541                 ptr++;
 542         }
 543         if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
 544                 /* need read/modify/write of last changed EEPROM word
 545                  * only the first byte of the word is being modified
 546                  */
 547                 ret_val = hw->nvm.ops.read(hw, last_word, 1,
 548                                    &eeprom_buff[last_word - first_word]);
 549         }
 550
 551         /* Device's eeprom is always little-endian, word addressable */
 552         for (i = 0; i < last_word - first_word + 1; i++)
 553                 le16_to_cpus(&eeprom_buff[i]);
 554
 555         memcpy(ptr, bytes, eeprom->len);
 556
 557         for (i = 0; i < last_word - first_word + 1; i++)
 558                 cpu_to_le16s(&eeprom_buff[i]);
 559
 560         ret_val = hw->nvm.ops.write(hw, first_word,
 561                                     last_word - first_word + 1, eeprom_buff);
 562
 563         /* Update the checksum if nvm write succeeded */
 564         if (ret_val == 0)
 565                 hw->nvm.ops.update(hw);
 566
 567         kfree(eeprom_buff);
 568         return ret_val;
 569 }
 570
 571 static void
 572 igc_ethtool_get_ringparam(struct net_device *netdev,
 573                           struct ethtool_ringparam *ring,
 574                           struct kernel_ethtool_ringparam *kernel_ering,
 575                           struct netlink_ext_ack *extack)
 576 {
 577         struct igc_adapter *adapter = netdev_priv(netdev);
 578
 579         ring->rx_max_pending = IGC_MAX_RXD;
 580         ring->tx_max_pending = IGC_MAX_TXD;
 581         ring->rx_pending = adapter->rx_ring_count;
 582         ring->tx_pending = adapter->tx_ring_count;
 583 }
 584
 585 static int
 586 igc_ethtool_set_ringparam(struct net_device *netdev,
 587                           struct ethtool_ringparam *ring,
 588                           struct kernel_ethtool_ringparam *kernel_ering,
 589                           struct netlink_ext_ack *extack)
 590 {
 591         struct igc_adapter *adapter = netdev_priv(netdev);
 592         struct igc_ring *temp_ring;
 593         u16 new_rx_count, new_tx_count;
 594         int i, err = 0;
 595
 596         if (ring->rx_mini_pending || ring->rx_jumbo_pending)
 597                 return -EINVAL;
 598
 599         new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
 600         new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
 601         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 602
 603         new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
 604         new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
 605         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 606
 607         if (new_tx_count == adapter->tx_ring_count &&
 608             new_rx_count == adapter->rx_ring_count) {
 609                 /* nothing to do */
 610                 return 0;
 611         }
 612
 613         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 614                 usleep_range(1000, 2000);
 615
 616         if (!netif_running(adapter->netdev)) {
 617                 for (i = 0; i < adapter->num_tx_queues; i++)
 618                         adapter->tx_ring[i]->count = new_tx_count;
 619                 for (i = 0; i < adapter->num_rx_queues; i++)
 620                         adapter->rx_ring[i]->count = new_rx_count;
 621                 adapter->tx_ring_count = new_tx_count;
 622                 adapter->rx_ring_count = new_rx_count;
 623                 goto clear_reset;
 624         }
 625
 626         if (adapter->num_tx_queues > adapter->num_rx_queues)
 627                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 628                                                adapter->num_tx_queues));
 629         else
 630                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 631                                                adapter->num_rx_queues));
 632
 633         if (!temp_ring) {
 634                 err = -ENOMEM;
 635                 goto clear_reset;
 636         }
 637
 638         igc_down(adapter);
 639
 640         /* We can't just free everything and then setup again,
 641          * because the ISRs in MSI-X mode get passed pointers
 642          * to the Tx and Rx ring structs.
 643          */
 644         if (new_tx_count != adapter->tx_ring_count) {
 645                 for (i = 0; i < adapter->num_tx_queues; i++) {
 646                         memcpy(&temp_ring[i], adapter->tx_ring[i],
 647                                sizeof(struct igc_ring));
 648
 649                         temp_ring[i].count = new_tx_count;
 650                         err = igc_setup_tx_resources(&temp_ring[i]);
 651                         if (err) {
 652                                 while (i) {
 653                                         i--;
 654                                         igc_free_tx_resources(&temp_ring[i]);
 655                                 }
 656                                 goto err_setup;
 657                         }
 658                 }
 659
 660                 for (i = 0; i < adapter->num_tx_queues; i++) {
 661                         igc_free_tx_resources(adapter->tx_ring[i]);
 662
 663                         memcpy(adapter->tx_ring[i], &temp_ring[i],
 664                                sizeof(struct igc_ring));
 665                 }
 666
 667                 adapter->tx_ring_count = new_tx_count;
 668         }
 669
 670         if (new_rx_count != adapter->rx_ring_count) {
 671                 for (i = 0; i < adapter->num_rx_queues; i++) {
 672                         memcpy(&temp_ring[i], adapter->rx_ring[i],
 673                                sizeof(struct igc_ring));
 674
 675                         temp_ring[i].count = new_rx_count;
 676                         err = igc_setup_rx_resources(&temp_ring[i]);
 677                         if (err) {
 678                                 while (i) {
 679                                         i--;
 680                                         igc_free_rx_resources(&temp_ring[i]);
 681                                 }
 682                                 goto err_setup;
 683                         }
 684                 }
 685
 686                 for (i = 0; i < adapter->num_rx_queues; i++) {
 687                         igc_free_rx_resources(adapter->rx_ring[i]);
 688
 689                         memcpy(adapter->rx_ring[i], &temp_ring[i],
 690                                sizeof(struct igc_ring));
 691                 }
 692
 693                 adapter->rx_ring_count = new_rx_count;
 694         }
 695 err_setup:
 696         igc_up(adapter);
 697         vfree(temp_ring);
 698 clear_reset:
 699         clear_bit(__IGC_RESETTING, &adapter->state);
 700         return err;
 701 }
 702
 703 static void igc_ethtool_get_pauseparam(struct net_device *netdev,
 704                                        struct ethtool_pauseparam *pause)
 705 {
 706         struct igc_adapter *adapter = netdev_priv(netdev);
 707         struct igc_hw *hw = &adapter->hw;
 708
 709         pause->autoneg =
 710                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 711
 712         if (hw->fc.current_mode == igc_fc_rx_pause) {
 713                 pause->rx_pause = 1;
 714         } else if (hw->fc.current_mode == igc_fc_tx_pause) {
 715                 pause->tx_pause = 1;
 716         } else if (hw->fc.current_mode == igc_fc_full) {
 717                 pause->rx_pause = 1;
 718                 pause->tx_pause = 1;
 719         }
 720 }
 721
 722 static int igc_ethtool_set_pauseparam(struct net_device *netdev,
 723                                       struct ethtool_pauseparam *pause)
 724 {
 725         struct igc_adapter *adapter = netdev_priv(netdev);
 726         struct igc_hw *hw = &adapter->hw;
 727         int retval = 0;
 728
 729         adapter->fc_autoneg = pause->autoneg;
 730
 731         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 732                 usleep_range(1000, 2000);
 733
 734         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 735                 hw->fc.requested_mode = igc_fc_default;
 736                 if (netif_running(adapter->netdev)) {
 737                         igc_down(adapter);
 738                         igc_up(adapter);
 739                 } else {
 740                         igc_reset(adapter);
 741                 }
 742         } else {
 743                 if (pause->rx_pause && pause->tx_pause)
 744                         hw->fc.requested_mode = igc_fc_full;
 745                 else if (pause->rx_pause && !pause->tx_pause)
 746                         hw->fc.requested_mode = igc_fc_rx_pause;
 747                 else if (!pause->rx_pause && pause->tx_pause)
 748                         hw->fc.requested_mode = igc_fc_tx_pause;
 749                 else if (!pause->rx_pause && !pause->tx_pause)
 750                         hw->fc.requested_mode = igc_fc_none;
 751
 752                 hw->fc.current_mode = hw->fc.requested_mode;
 753
 754                 retval = ((hw->phy.media_type == igc_media_type_copper) ?
 755                           igc_force_mac_fc(hw) : igc_setup_link(hw));
 756         }
 757
 758         clear_bit(__IGC_RESETTING, &adapter->state);
 759         return retval;
 760 }
 761
 762 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
 763                                     u8 *data)
 764 {
 765         struct igc_adapter *adapter = netdev_priv(netdev);
 766         u8 *p = data;
 767         int i;
 768
 769         switch (stringset) {
 770         case ETH_SS_TEST:
 771                 memcpy(data, *igc_gstrings_test,
 772                        IGC_TEST_LEN * ETH_GSTRING_LEN);
 773                 break;
 774         case ETH_SS_STATS:
 775                 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++)
 776                         ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string);
 777                 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
 778                         ethtool_sprintf(&p,
 779                                         igc_gstrings_net_stats[i].stat_string);
 780                 for (i = 0; i < adapter->num_tx_queues; i++) {
 781                         ethtool_sprintf(&p, "tx_queue_%u_packets", i);
 782                         ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
 783                         ethtool_sprintf(&p, "tx_queue_%u_restart", i);
 784                 }
 785                 for (i = 0; i < adapter->num_rx_queues; i++) {
 786                         ethtool_sprintf(&p, "rx_queue_%u_packets", i);
 787                         ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
 788                         ethtool_sprintf(&p, "rx_queue_%u_drops", i);
 789                         ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
 790                         ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
 791                 }
 792                 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
 793                 break;
 794         case ETH_SS_PRIV_FLAGS:
 795                 memcpy(data, igc_priv_flags_strings,
 796                        IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 797                 break;
 798         }
 799 }
 800
 801 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 802 {
 803         switch (sset) {
 804         case ETH_SS_STATS:
 805                 return IGC_STATS_LEN;
 806         case ETH_SS_TEST:
 807                 return IGC_TEST_LEN;
 808         case ETH_SS_PRIV_FLAGS:
 809                 return IGC_PRIV_FLAGS_STR_LEN;
 810         default:
 811                 return -ENOTSUPP;
 812         }
 813 }
 814
 815 static void igc_ethtool_get_stats(struct net_device *netdev,
 816                                   struct ethtool_stats *stats, u64 *data)
 817 {
 818         struct igc_adapter *adapter = netdev_priv(netdev);
 819         struct rtnl_link_stats64 *net_stats = &adapter->stats64;
 820         unsigned int start;
 821         struct igc_ring *ring;
 822         int i, j;
 823         char *p;
 824
 825         spin_lock(&adapter->stats64_lock);
 826         igc_update_stats(adapter);
 827
 828         for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 829                 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
 830                 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
 831                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 832         }
 833         for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
 834                 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
 835                 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
 836                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 837         }
 838         for (j = 0; j < adapter->num_tx_queues; j++) {
 839                 u64     restart2;
 840
 841                 ring = adapter->tx_ring[j];
 842                 do {
 843                         start = u64_stats_fetch_begin(&ring->tx_syncp);
 844                         data[i]   = ring->tx_stats.packets;
 845                         data[i + 1] = ring->tx_stats.bytes;
 846                         data[i + 2] = ring->tx_stats.restart_queue;
 847                 } while (u64_stats_fetch_retry(&ring->tx_syncp, start));
 848                 do {
 849                         start = u64_stats_fetch_begin(&ring->tx_syncp2);
 850                         restart2  = ring->tx_stats.restart_queue2;
 851                 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start));
 852                 data[i + 2] += restart2;
 853
 854                 i += IGC_TX_QUEUE_STATS_LEN;
 855         }
 856         for (j = 0; j < adapter->num_rx_queues; j++) {
 857                 ring = adapter->rx_ring[j];
 858                 do {
 859                         start = u64_stats_fetch_begin(&ring->rx_syncp);
 860                         data[i]   = ring->rx_stats.packets;
 861                         data[i + 1] = ring->rx_stats.bytes;
 862                         data[i + 2] = ring->rx_stats.drops;
 863                         data[i + 3] = ring->rx_stats.csum_err;
 864                         data[i + 4] = ring->rx_stats.alloc_failed;
 865                 } while (u64_stats_fetch_retry(&ring->rx_syncp, start));
 866                 i += IGC_RX_QUEUE_STATS_LEN;
 867         }
 868         spin_unlock(&adapter->stats64_lock);
 869 }
 870
 871 static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)
 872 {
 873         return (adapter->rx_itr_setting <= 3) ?
 874                 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
 875 }
 876
 877 static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
 878 {
 879         return (adapter->tx_itr_setting <= 3) ?
 880                 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
 881 }
 882
 883 static int igc_ethtool_get_coalesce(struct net_device *netdev,
 884                                     struct ethtool_coalesce *ec,
 885                                     struct kernel_ethtool_coalesce *kernel_coal,
 886                                     struct netlink_ext_ack *extack)
 887 {
 888         struct igc_adapter *adapter = netdev_priv(netdev);
 889
 890         ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
 891         ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
 892
 893         return 0;
 894 }
 895
 896 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 897                                     struct ethtool_coalesce *ec,
 898                                     struct kernel_ethtool_coalesce *kernel_coal,
 899                                     struct netlink_ext_ack *extack)
 900 {
 901         struct igc_adapter *adapter = netdev_priv(netdev);
 902         int i;
 903
 904         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 905             (ec->rx_coalesce_usecs > 3 &&
 906              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 907             ec->rx_coalesce_usecs == 2)
 908                 return -EINVAL;
 909
 910         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 911             (ec->tx_coalesce_usecs > 3 &&
 912              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 913             ec->tx_coalesce_usecs == 2)
 914                 return -EINVAL;
 915
 916         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&
 917             ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {
 918                 NL_SET_ERR_MSG_MOD(extack,
 919                                    "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");
 920                 return -EINVAL;
 921         }
 922
 923         /* If ITR is disabled, disable DMAC */
 924         if (ec->rx_coalesce_usecs == 0) {
 925                 if (adapter->flags & IGC_FLAG_DMAC)
 926                         adapter->flags &= ~IGC_FLAG_DMAC;
 927         }
 928
 929         /* convert to rate of irq's per second */
 930         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 931                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 932         else
 933                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 934
 935         /* convert to rate of irq's per second */
 936         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 937                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 938         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 939                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 940         else
 941                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 942
 943         for (i = 0; i < adapter->num_q_vectors; i++) {
 944                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 945
 946                 q_vector->tx.work_limit = adapter->tx_work_limit;
 947                 if (q_vector->rx.ring)
 948                         q_vector->itr_val = adapter->rx_itr_setting;
 949                 else
 950                         q_vector->itr_val = adapter->tx_itr_setting;
 951                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 952                         q_vector->itr_val = IGC_START_ITR;
 953                 q_vector->set_itr = 1;
 954         }
 955
 956         return 0;
 957 }
 958
 959 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 960 #define VLAN_TCI_FULL_MASK ((__force __be16)~0)
 961 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 962                                     struct ethtool_rxnfc *cmd)
 963 {
 964         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 965         struct igc_nfc_rule *rule = NULL;
 966
 967         cmd->data = IGC_MAX_RXNFC_RULES;
 968
 969         mutex_lock(&adapter->nfc_rule_lock);
 970
 971         rule = igc_get_nfc_rule(adapter, fsp->location);
 972         if (!rule)
 973                 goto out;
 974
 975         fsp->flow_type = ETHER_FLOW;
 976         fsp->ring_cookie = rule->action;
 977
 978         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 979                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 980                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 981         }
 982
 983         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) {
 984                 fsp->flow_type |= FLOW_EXT;
 985                 fsp->h_ext.vlan_etype = rule->filter.vlan_etype;
 986                 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK;
 987         }
 988
 989         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 990                 fsp->flow_type |= FLOW_EXT;
 991                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 992                 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask);
 993         }
 994
 995         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 996                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 997                                 rule->filter.dst_addr);
 998                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 999         }
1000
1001         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
1002                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
1003                                 rule->filter.src_addr);
1004                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
1005         }
1006
1007         if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
1008                 fsp->flow_type |= FLOW_EXT;
1009                 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
1010                 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
1011         }
1012
1013         mutex_unlock(&adapter->nfc_rule_lock);
1014         return 0;
1015
1016 out:
1017         mutex_unlock(&adapter->nfc_rule_lock);
1018         return -EINVAL;
1019 }
1020
1021 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1022                                      struct ethtool_rxnfc *cmd,
1023                                      u32 *rule_locs)
1024 {
1025         struct igc_nfc_rule *rule;
1026         int cnt = 0;
1027
1028         cmd->data = IGC_MAX_RXNFC_RULES;
1029
1030         mutex_lock(&adapter->nfc_rule_lock);
1031
1032         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1033                 if (cnt == cmd->rule_cnt) {
1034                         mutex_unlock(&adapter->nfc_rule_lock);
1035                         return -EMSGSIZE;
1036                 }
1037                 rule_locs[cnt] = rule->location;
1038                 cnt++;
1039         }
1040
1041         mutex_unlock(&adapter->nfc_rule_lock);
1042
1043         cmd->rule_cnt = cnt;
1044
1045         return 0;
1046 }
1047
1048 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1049                                          struct ethtool_rxnfc *cmd)
1050 {
1051         cmd->data = 0;
1052
1053         /* Report default options for RSS on igc */
1054         switch (cmd->flow_type) {
1055         case TCP_V4_FLOW:
1056                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1057                 fallthrough;
1058         case UDP_V4_FLOW:
1059                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1060                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1061                 fallthrough;
1062         case SCTP_V4_FLOW:
1063         case AH_ESP_V4_FLOW:
1064         case AH_V4_FLOW:
1065         case ESP_V4_FLOW:
1066         case IPV4_FLOW:
1067                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1068                 break;
1069         case TCP_V6_FLOW:
1070                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1071                 fallthrough;
1072         case UDP_V6_FLOW:
1073                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1074                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1075                 fallthrough;
1076         case SCTP_V6_FLOW:
1077         case AH_ESP_V6_FLOW:
1078         case AH_V6_FLOW:
1079         case ESP_V6_FLOW:
1080         case IPV6_FLOW:
1081                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1082                 break;
1083         default:
1084                 return -EINVAL;
1085         }
1086
1087         return 0;
1088 }
1089
1090 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1091                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1092 {
1093         struct igc_adapter *adapter = netdev_priv(dev);
1094
1095         switch (cmd->cmd) {
1096         case ETHTOOL_GRXRINGS:
1097                 cmd->data = adapter->num_rx_queues;
1098                 return 0;
1099         case ETHTOOL_GRXCLSRLCNT:
1100                 cmd->rule_cnt = adapter->nfc_rule_count;
1101                 return 0;
1102         case ETHTOOL_GRXCLSRULE:
1103                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1104         case ETHTOOL_GRXCLSRLALL:
1105                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1106         case ETHTOOL_GRXFH:
1107                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1108         default:
1109                 return -EOPNOTSUPP;
1110         }
1111 }
1112
1113 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1114                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1115 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1116                                         struct ethtool_rxnfc *nfc)
1117 {
1118         u32 flags = adapter->flags;
1119
1120         /* RSS does not support anything other than hashing
1121          * to queues on src and dst IPs and ports
1122          */
1123         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1124                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1125                 return -EINVAL;
1126
1127         switch (nfc->flow_type) {
1128         case TCP_V4_FLOW:
1129         case TCP_V6_FLOW:
1130                 if (!(nfc->data & RXH_IP_SRC) ||
1131                     !(nfc->data & RXH_IP_DST) ||
1132                     !(nfc->data & RXH_L4_B_0_1) ||
1133                     !(nfc->data & RXH_L4_B_2_3))
1134                         return -EINVAL;
1135                 break;
1136         case UDP_V4_FLOW:
1137                 if (!(nfc->data & RXH_IP_SRC) ||
1138                     !(nfc->data & RXH_IP_DST))
1139                         return -EINVAL;
1140                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1141                 case 0:
1142                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1143                         break;
1144                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1145                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1146                         break;
1147                 default:
1148                         return -EINVAL;
1149                 }
1150                 break;
1151         case UDP_V6_FLOW:
1152                 if (!(nfc->data & RXH_IP_SRC) ||
1153                     !(nfc->data & RXH_IP_DST))
1154                         return -EINVAL;
1155                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1156                 case 0:
1157                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1158                         break;
1159                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1160                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1161                         break;
1162                 default:
1163                         return -EINVAL;
1164                 }
1165                 break;
1166         case AH_ESP_V4_FLOW:
1167         case AH_V4_FLOW:
1168         case ESP_V4_FLOW:
1169         case SCTP_V4_FLOW:
1170         case AH_ESP_V6_FLOW:
1171         case AH_V6_FLOW:
1172         case ESP_V6_FLOW:
1173         case SCTP_V6_FLOW:
1174                 if (!(nfc->data & RXH_IP_SRC) ||
1175                     !(nfc->data & RXH_IP_DST) ||
1176                     (nfc->data & RXH_L4_B_0_1) ||
1177                     (nfc->data & RXH_L4_B_2_3))
1178                         return -EINVAL;
1179                 break;
1180         default:
1181                 return -EINVAL;
1182         }
1183
1184         /* if we changed something we need to update flags */
1185         if (flags != adapter->flags) {
1186                 struct igc_hw *hw = &adapter->hw;
1187                 u32 mrqc = rd32(IGC_MRQC);
1188
1189                 if ((flags & UDP_RSS_FLAGS) &&
1190                     !(adapter->flags & UDP_RSS_FLAGS))
1191                         netdev_err(adapter->netdev,
1192                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1193
1194                 adapter->flags = flags;
1195
1196                 /* Perform hash on these packet types */
1197                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1198                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1199                         IGC_MRQC_RSS_FIELD_IPV6 |
1200                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1201
1202                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1203                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1204
1205                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1206                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1207
1208                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1209                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1210
1211                 wr32(IGC_MRQC, mrqc);
1212         }
1213
1214         return 0;
1215 }
1216
1217 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1218                                       const struct ethtool_rx_flow_spec *fsp)
1219 {
1220         INIT_LIST_HEAD(&rule->list);
1221
1222         rule->action = fsp->ring_cookie;
1223         rule->location = fsp->location;
1224
1225         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1226                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1227                 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);
1228                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1229         }
1230
1231         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1232                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1233                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1234         }
1235
1236         /* Both source and destination address filters only support the full
1237          * mask.
1238          */
1239         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1240                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1241                 ether_addr_copy(rule->filter.src_addr,
1242                                 fsp->h_u.ether_spec.h_source);
1243         }
1244
1245         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1246                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1247                 ether_addr_copy(rule->filter.dst_addr,
1248                                 fsp->h_u.ether_spec.h_dest);
1249         }
1250
1251         /* VLAN etype matching */
1252         if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
1253                 rule->filter.vlan_etype = fsp->h_ext.vlan_etype;
1254                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
1255         }
1256
1257         /* Check for user defined data */
1258         if ((fsp->flow_type & FLOW_EXT) &&
1259             (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
1260                 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
1261                 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
1262                 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
1263         }
1264
1265         /* The i225/i226 has various different filters. Flex filters provide a
1266          * way to match up to the first 128 bytes of a packet. Use them for:
1267          *   a) For specific user data
1268          *   b) For VLAN EtherType
1269          *   c) For full TCI match
1270          *   d) Or in case multiple filter criteria are set
1271          *
1272          * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.
1273          */
1274         if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
1275             (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
1276             ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&
1277              rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||
1278             (rule->filter.match_flags & (rule->filter.match_flags - 1)))
1279                 rule->flex = true;
1280         else
1281                 rule->flex = false;
1282 }
1283
1284 /**
1285  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1286  * @adapter: Pointer to adapter
1287  * @rule: Rule under evaluation
1288  *
1289  * The driver doesn't support rules with multiple matches so if more than
1290  * one bit in filter flags is set, @rule is considered invalid.
1291  *
1292  * Also, if there is already another rule with the same filter in a different
1293  * location, @rule is considered invalid.
1294  *
1295  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1296  *
1297  * Return: 0 in case of success, negative errno code otherwise.
1298  */
1299 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1300                                       struct igc_nfc_rule *rule)
1301 {
1302         struct net_device *dev = adapter->netdev;
1303         u8 flags = rule->filter.match_flags;
1304         struct igc_nfc_rule *tmp;
1305
1306         if (!flags) {
1307                 netdev_dbg(dev, "Rule with no match\n");
1308                 return -EINVAL;
1309         }
1310
1311         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1312                 if (!memcmp(&rule->filter, &tmp->filter,
1313                             sizeof(rule->filter)) &&
1314                     tmp->location != rule->location) {
1315                         netdev_dbg(dev, "Rule already exists\n");
1316                         return -EEXIST;
1317                 }
1318         }
1319
1320         return 0;
1321 }
1322
1323 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1324                                     struct ethtool_rxnfc *cmd)
1325 {
1326         struct net_device *netdev = adapter->netdev;
1327         struct ethtool_rx_flow_spec *fsp =
1328                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1329         struct igc_nfc_rule *rule, *old_rule;
1330         int err;
1331
1332         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1333                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1334                 return -EOPNOTSUPP;
1335         }
1336
1337         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1338                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1339                 return -EOPNOTSUPP;
1340         }
1341
1342         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1343                 netdev_dbg(netdev, "Invalid action\n");
1344                 return -EINVAL;
1345         }
1346
1347         /* There are two ways to match the VLAN TCI:
1348          *  1. Match on PCP field and use vlan prio filter for it
1349          *  2. Match on complete TCI field and use flex filter for it
1350          */
1351         if ((fsp->flow_type & FLOW_EXT) &&
1352             fsp->m_ext.vlan_tci &&
1353             fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&
1354             fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {
1355                 netdev_dbg(netdev, "VLAN mask not supported\n");
1356                 return -EOPNOTSUPP;
1357         }
1358
1359         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1360                 netdev_dbg(netdev, "Invalid location\n");
1361                 return -EINVAL;
1362         }
1363
1364         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1365         if (!rule)
1366                 return -ENOMEM;
1367
1368         igc_ethtool_init_nfc_rule(rule, fsp);
1369
1370         mutex_lock(&adapter->nfc_rule_lock);
1371
1372         err = igc_ethtool_check_nfc_rule(adapter, rule);
1373         if (err)
1374                 goto err;
1375
1376         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1377         if (old_rule)
1378                 igc_del_nfc_rule(adapter, old_rule);
1379
1380         err = igc_add_nfc_rule(adapter, rule);
1381         if (err)
1382                 goto err;
1383
1384         mutex_unlock(&adapter->nfc_rule_lock);
1385         return 0;
1386
1387 err:
1388         mutex_unlock(&adapter->nfc_rule_lock);
1389         kfree(rule);
1390         return err;
1391 }
1392
1393 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1394                                     struct ethtool_rxnfc *cmd)
1395 {
1396         struct ethtool_rx_flow_spec *fsp =
1397                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1398         struct igc_nfc_rule *rule;
1399
1400         mutex_lock(&adapter->nfc_rule_lock);
1401
1402         rule = igc_get_nfc_rule(adapter, fsp->location);
1403         if (!rule) {
1404                 mutex_unlock(&adapter->nfc_rule_lock);
1405                 return -EINVAL;
1406         }
1407
1408         igc_del_nfc_rule(adapter, rule);
1409
1410         mutex_unlock(&adapter->nfc_rule_lock);
1411         return 0;
1412 }
1413
1414 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1415                                  struct ethtool_rxnfc *cmd)
1416 {
1417         struct igc_adapter *adapter = netdev_priv(dev);
1418
1419         switch (cmd->cmd) {
1420         case ETHTOOL_SRXFH:
1421                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1422         case ETHTOOL_SRXCLSRLINS:
1423                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1424         case ETHTOOL_SRXCLSRLDEL:
1425                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1426         default:
1427                 return -EOPNOTSUPP;
1428         }
1429 }
1430
1431 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1432 {
1433         struct igc_hw *hw = &adapter->hw;
1434         u32 reg = IGC_RETA(0);
1435         u32 shift = 0;
1436         int i = 0;
1437
1438         while (i < IGC_RETA_SIZE) {
1439                 u32 val = 0;
1440                 int j;
1441
1442                 for (j = 3; j >= 0; j--) {
1443                         val <<= 8;
1444                         val |= adapter->rss_indir_tbl[i + j];
1445                 }
1446
1447                 wr32(reg, val << shift);
1448                 reg += 4;
1449                 i += 4;
1450         }
1451 }
1452
1453 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1454 {
1455         return IGC_RETA_SIZE;
1456 }
1457
1458 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1459                                 u8 *hfunc)
1460 {
1461         struct igc_adapter *adapter = netdev_priv(netdev);
1462         int i;
1463
1464         if (hfunc)
1465                 *hfunc = ETH_RSS_HASH_TOP;
1466         if (!indir)
1467                 return 0;
1468         for (i = 0; i < IGC_RETA_SIZE; i++)
1469                 indir[i] = adapter->rss_indir_tbl[i];
1470
1471         return 0;
1472 }
1473
1474 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1475                                 const u8 *key, const u8 hfunc)
1476 {
1477         struct igc_adapter *adapter = netdev_priv(netdev);
1478         u32 num_queues;
1479         int i;
1480
1481         /* We do not allow change in unsupported parameters */
1482         if (key ||
1483             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1484                 return -EOPNOTSUPP;
1485         if (!indir)
1486                 return 0;
1487
1488         num_queues = adapter->rss_queues;
1489
1490         /* Verify user input. */
1491         for (i = 0; i < IGC_RETA_SIZE; i++)
1492                 if (indir[i] >= num_queues)
1493                         return -EINVAL;
1494
1495         for (i = 0; i < IGC_RETA_SIZE; i++)
1496                 adapter->rss_indir_tbl[i] = indir[i];
1497
1498         igc_write_rss_indir_tbl(adapter);
1499
1500         return 0;
1501 }
1502
1503 static void igc_ethtool_get_channels(struct net_device *netdev,
1504                                      struct ethtool_channels *ch)
1505 {
1506         struct igc_adapter *adapter = netdev_priv(netdev);
1507
1508         /* Report maximum channels */
1509         ch->max_combined = igc_get_max_rss_queues(adapter);
1510
1511         /* Report info for other vector */
1512         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1513                 ch->max_other = NON_Q_VECTORS;
1514                 ch->other_count = NON_Q_VECTORS;
1515         }
1516
1517         ch->combined_count = adapter->rss_queues;
1518 }
1519
1520 static int igc_ethtool_set_channels(struct net_device *netdev,
1521                                     struct ethtool_channels *ch)
1522 {
1523         struct igc_adapter *adapter = netdev_priv(netdev);
1524         unsigned int count = ch->combined_count;
1525         unsigned int max_combined = 0;
1526
1527         /* Verify they are not requesting separate vectors */
1528         if (!count || ch->rx_count || ch->tx_count)
1529                 return -EINVAL;
1530
1531         /* Verify other_count is valid and has not been changed */
1532         if (ch->other_count != NON_Q_VECTORS)
1533                 return -EINVAL;
1534
1535         /* Verify the number of channels doesn't exceed hw limits */
1536         max_combined = igc_get_max_rss_queues(adapter);
1537         if (count > max_combined)
1538                 return -EINVAL;
1539
1540         if (count != adapter->rss_queues) {
1541                 adapter->rss_queues = count;
1542                 igc_set_flag_queue_pairs(adapter, max_combined);
1543
1544                 /* Hardware has to reinitialize queues and interrupts to
1545                  * match the new configuration.
1546                  */
1547                 return igc_reinit_queues(adapter);
1548         }
1549
1550         return 0;
1551 }
1552
1553 static int igc_ethtool_get_ts_info(struct net_device *dev,
1554                                    struct ethtool_ts_info *info)
1555 {
1556         struct igc_adapter *adapter = netdev_priv(dev);
1557
1558         if (adapter->ptp_clock)
1559                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1560         else
1561                 info->phc_index = -1;
1562
1563         switch (adapter->hw.mac.type) {
1564         case igc_i225:
1565                 info->so_timestamping =
1566                         SOF_TIMESTAMPING_TX_SOFTWARE |
1567                         SOF_TIMESTAMPING_RX_SOFTWARE |
1568                         SOF_TIMESTAMPING_SOFTWARE |
1569                         SOF_TIMESTAMPING_TX_HARDWARE |
1570                         SOF_TIMESTAMPING_RX_HARDWARE |
1571                         SOF_TIMESTAMPING_RAW_HARDWARE;
1572
1573                 info->tx_types =
1574                         BIT(HWTSTAMP_TX_OFF) |
1575                         BIT(HWTSTAMP_TX_ON);
1576
1577                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1578                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1579
1580                 return 0;
1581         default:
1582                 return -EOPNOTSUPP;
1583         }
1584 }
1585
1586 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1587 {
1588         struct igc_adapter *adapter = netdev_priv(netdev);
1589         u32 priv_flags = 0;
1590
1591         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1592                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1593
1594         return priv_flags;
1595 }
1596
1597 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1598 {
1599         struct igc_adapter *adapter = netdev_priv(netdev);
1600         unsigned int flags = adapter->flags;
1601
1602         flags &= ~IGC_FLAG_RX_LEGACY;
1603         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1604                 flags |= IGC_FLAG_RX_LEGACY;
1605
1606         if (flags != adapter->flags) {
1607                 adapter->flags = flags;
1608
1609                 /* reset interface to repopulate queues */
1610                 if (netif_running(netdev))
1611                         igc_reinit_locked(adapter);
1612         }
1613
1614         return 0;
1615 }
1616
1617 static int igc_ethtool_get_eee(struct net_device *netdev,
1618                                struct ethtool_eee *edata)
1619 {
1620         struct igc_adapter *adapter = netdev_priv(netdev);
1621         struct igc_hw *hw = &adapter->hw;
1622         u32 eeer;
1623
1624         if (hw->dev_spec._base.eee_enable)
1625                 edata->advertised =
1626                         mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1627
1628         *edata = adapter->eee;
1629         edata->supported = SUPPORTED_Autoneg;
1630
1631         eeer = rd32(IGC_EEER);
1632
1633         /* EEE status on negotiated link */
1634         if (eeer & IGC_EEER_EEE_NEG)
1635                 edata->eee_active = true;
1636
1637         if (eeer & IGC_EEER_TX_LPI_EN)
1638                 edata->tx_lpi_enabled = true;
1639
1640         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1641
1642         edata->advertised = SUPPORTED_Autoneg;
1643         edata->lp_advertised = SUPPORTED_Autoneg;
1644
1645         /* Report correct negotiated EEE status for devices that
1646          * wrongly report EEE at half-duplex
1647          */
1648         if (adapter->link_duplex == HALF_DUPLEX) {
1649                 edata->eee_enabled = false;
1650                 edata->eee_active = false;
1651                 edata->tx_lpi_enabled = false;
1652                 edata->advertised &= ~edata->advertised;
1653         }
1654
1655         return 0;
1656 }
1657
1658 static int igc_ethtool_set_eee(struct net_device *netdev,
1659                                struct ethtool_eee *edata)
1660 {
1661         struct igc_adapter *adapter = netdev_priv(netdev);
1662         struct igc_hw *hw = &adapter->hw;
1663         struct ethtool_eee eee_curr;
1664         s32 ret_val;
1665
1666         memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1667
1668         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1669         if (ret_val) {
1670                 netdev_err(netdev,
1671                            "Problem setting EEE advertisement options\n");
1672                 return -EINVAL;
1673         }
1674
1675         if (eee_curr.eee_enabled) {
1676                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1677                         netdev_err(netdev,
1678                                    "Setting EEE tx-lpi is not supported\n");
1679                         return -EINVAL;
1680                 }
1681
1682                 /* Tx LPI timer is not implemented currently */
1683                 if (edata->tx_lpi_timer) {
1684                         netdev_err(netdev,
1685                                    "Setting EEE Tx LPI timer is not supported\n");
1686                         return -EINVAL;
1687                 }
1688         } else if (!edata->eee_enabled) {
1689                 netdev_err(netdev,
1690                            "Setting EEE options are not supported with EEE disabled\n");
1691                 return -EINVAL;
1692         }
1693
1694         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1695         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1696                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1697                 adapter->flags |= IGC_FLAG_EEE;
1698
1699                 /* reset link */
1700                 if (netif_running(netdev))
1701                         igc_reinit_locked(adapter);
1702                 else
1703                         igc_reset(adapter);
1704         }
1705
1706         return 0;
1707 }
1708
1709 static int igc_ethtool_begin(struct net_device *netdev)
1710 {
1711         struct igc_adapter *adapter = netdev_priv(netdev);
1712
1713         pm_runtime_get_sync(&adapter->pdev->dev);
1714         return 0;
1715 }
1716
1717 static void igc_ethtool_complete(struct net_device *netdev)
1718 {
1719         struct igc_adapter *adapter = netdev_priv(netdev);
1720
1721         pm_runtime_put(&adapter->pdev->dev);
1722 }
1723
1724 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1725                                           struct ethtool_link_ksettings *cmd)
1726 {
1727         struct igc_adapter *adapter = netdev_priv(netdev);
1728         struct igc_hw *hw = &adapter->hw;
1729         u32 status;
1730         u32 speed;
1731
1732         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1733         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1734
1735         /* supported link modes */
1736         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1737         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1738         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1739         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1740         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1741         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1742
1743         /* twisted pair */
1744         cmd->base.port = PORT_TP;
1745         cmd->base.phy_address = hw->phy.addr;
1746         ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
1747         ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
1748
1749         /* advertising link modes */
1750         if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1751                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1752         if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1753                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1754         if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1755                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1756         if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1757                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1758         if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1759                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1760         if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1761                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1762
1763         /* set autoneg settings */
1764         if (hw->mac.autoneg == 1) {
1765                 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1766                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1767                                                      Autoneg);
1768         }
1769
1770         /* Set pause flow control settings */
1771         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1772
1773         switch (hw->fc.requested_mode) {
1774         case igc_fc_full:
1775                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1776                 break;
1777         case igc_fc_rx_pause:
1778                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1779                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1780                                                      Asym_Pause);
1781                 break;
1782         case igc_fc_tx_pause:
1783                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1784                                                      Asym_Pause);
1785                 break;
1786         default:
1787                 break;
1788         }
1789
1790         status = pm_runtime_suspended(&adapter->pdev->dev) ?
1791                  0 : rd32(IGC_STATUS);
1792
1793         if (status & IGC_STATUS_LU) {
1794                 if (status & IGC_STATUS_SPEED_1000) {
1795                         /* For I225, STATUS will indicate 1G speed in both
1796                          * 1 Gbps and 2.5 Gbps link modes.
1797                          * An additional bit is used
1798                          * to differentiate between 1 Gbps and 2.5 Gbps.
1799                          */
1800                         if (hw->mac.type == igc_i225 &&
1801                             (status & IGC_STATUS_SPEED_2500)) {
1802                                 speed = SPEED_2500;
1803                         } else {
1804                                 speed = SPEED_1000;
1805                         }
1806                 } else if (status & IGC_STATUS_SPEED_100) {
1807                         speed = SPEED_100;
1808                 } else {
1809                         speed = SPEED_10;
1810                 }
1811                 if ((status & IGC_STATUS_FD) ||
1812                     hw->phy.media_type != igc_media_type_copper)
1813                         cmd->base.duplex = DUPLEX_FULL;
1814                 else
1815                         cmd->base.duplex = DUPLEX_HALF;
1816         } else {
1817                 speed = SPEED_UNKNOWN;
1818                 cmd->base.duplex = DUPLEX_UNKNOWN;
1819         }
1820         cmd->base.speed = speed;
1821         if (hw->mac.autoneg)
1822                 cmd->base.autoneg = AUTONEG_ENABLE;
1823         else
1824                 cmd->base.autoneg = AUTONEG_DISABLE;
1825
1826         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1827         if (hw->phy.media_type == igc_media_type_copper)
1828                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1829                                                       ETH_TP_MDI;
1830         else
1831                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1832
1833         if (hw->phy.mdix == AUTO_ALL_MODES)
1834                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1835         else
1836                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1837
1838         return 0;
1839 }
1840
1841 static int
1842 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1843                                const struct ethtool_link_ksettings *cmd)
1844 {
1845         struct igc_adapter *adapter = netdev_priv(netdev);
1846         struct net_device *dev = adapter->netdev;
1847         struct igc_hw *hw = &adapter->hw;
1848         u16 advertised = 0;
1849
1850         /* When adapter in resetting mode, autoneg/speed/duplex
1851          * cannot be changed
1852          */
1853         if (igc_check_reset_block(hw)) {
1854                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1855                 return -EINVAL;
1856         }
1857
1858         /* MDI setting is only allowed when autoneg enabled because
1859          * some hardware doesn't allow MDI setting when speed or
1860          * duplex is forced.
1861          */
1862         if (cmd->base.eth_tp_mdix_ctrl) {
1863                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1864                     cmd->base.autoneg != AUTONEG_ENABLE) {
1865                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1866                         return -EINVAL;
1867                 }
1868         }
1869
1870         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1871                 usleep_range(1000, 2000);
1872
1873         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1874                                                   2500baseT_Full))
1875                 advertised |= ADVERTISE_2500_FULL;
1876
1877         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1878                                                   1000baseT_Full))
1879                 advertised |= ADVERTISE_1000_FULL;
1880
1881         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1882                                                   100baseT_Full))
1883                 advertised |= ADVERTISE_100_FULL;
1884
1885         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1886                                                   100baseT_Half))
1887                 advertised |= ADVERTISE_100_HALF;
1888
1889         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1890                                                   10baseT_Full))
1891                 advertised |= ADVERTISE_10_FULL;
1892
1893         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1894                                                   10baseT_Half))
1895                 advertised |= ADVERTISE_10_HALF;
1896
1897         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1898                 hw->mac.autoneg = 1;
1899                 hw->phy.autoneg_advertised = advertised;
1900                 if (adapter->fc_autoneg)
1901                         hw->fc.requested_mode = igc_fc_default;
1902         } else {
1903                 netdev_info(dev, "Force mode currently not supported\n");
1904         }
1905
1906         /* MDI-X => 2; MDI => 1; Auto => 3 */
1907         if (cmd->base.eth_tp_mdix_ctrl) {
1908                 /* fix up the value for auto (3 => 0) as zero is mapped
1909                  * internally to auto
1910                  */
1911                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1912                         hw->phy.mdix = AUTO_ALL_MODES;
1913                 else
1914                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1915         }
1916
1917         /* reset the link */
1918         if (netif_running(adapter->netdev)) {
1919                 igc_down(adapter);
1920                 igc_up(adapter);
1921         } else {
1922                 igc_reset(adapter);
1923         }
1924
1925         clear_bit(__IGC_RESETTING, &adapter->state);
1926
1927         return 0;
1928 }
1929
1930 static void igc_ethtool_diag_test(struct net_device *netdev,
1931                                   struct ethtool_test *eth_test, u64 *data)
1932 {
1933         struct igc_adapter *adapter = netdev_priv(netdev);
1934         bool if_running = netif_running(netdev);
1935
1936         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1937                 netdev_info(adapter->netdev, "Offline testing starting");
1938                 set_bit(__IGC_TESTING, &adapter->state);
1939
1940                 /* Link test performed before hardware reset so autoneg doesn't
1941                  * interfere with test result
1942                  */
1943                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1944                         eth_test->flags |= ETH_TEST_FL_FAILED;
1945
1946                 if (if_running)
1947                         igc_close(netdev);
1948                 else
1949                         igc_reset(adapter);
1950
1951                 netdev_info(adapter->netdev, "Register testing starting");
1952                 if (!igc_reg_test(adapter, &data[TEST_REG]))
1953                         eth_test->flags |= ETH_TEST_FL_FAILED;
1954
1955                 igc_reset(adapter);
1956
1957                 netdev_info(adapter->netdev, "EEPROM testing starting");
1958                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1959                         eth_test->flags |= ETH_TEST_FL_FAILED;
1960
1961                 igc_reset(adapter);
1962
1963                 /* loopback and interrupt tests
1964                  * will be implemented in the future
1965                  */
1966                 data[TEST_LOOP] = 0;
1967                 data[TEST_IRQ] = 0;
1968
1969                 clear_bit(__IGC_TESTING, &adapter->state);
1970                 if (if_running)
1971                         igc_open(netdev);
1972         } else {
1973                 netdev_info(adapter->netdev, "Online testing starting");
1974
1975                 /* register, eeprom, intr and loopback tests not run online */
1976                 data[TEST_REG] = 0;
1977                 data[TEST_EEP] = 0;
1978                 data[TEST_IRQ] = 0;
1979                 data[TEST_LOOP] = 0;
1980
1981                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1982                         eth_test->flags |= ETH_TEST_FL_FAILED;
1983         }
1984
1985         msleep_interruptible(4 * 1000);
1986 }
1987
1988 static const struct ethtool_ops igc_ethtool_ops = {
1989         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1990         .get_drvinfo            = igc_ethtool_get_drvinfo,
1991         .get_regs_len           = igc_ethtool_get_regs_len,
1992         .get_regs               = igc_ethtool_get_regs,
1993         .get_wol                = igc_ethtool_get_wol,
1994         .set_wol                = igc_ethtool_set_wol,
1995         .get_msglevel           = igc_ethtool_get_msglevel,
1996         .set_msglevel           = igc_ethtool_set_msglevel,
1997         .nway_reset             = igc_ethtool_nway_reset,
1998         .get_link               = igc_ethtool_get_link,
1999         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
2000         .get_eeprom             = igc_ethtool_get_eeprom,
2001         .set_eeprom             = igc_ethtool_set_eeprom,
2002         .get_ringparam          = igc_ethtool_get_ringparam,
2003         .set_ringparam          = igc_ethtool_set_ringparam,
2004         .get_pauseparam         = igc_ethtool_get_pauseparam,
2005         .set_pauseparam         = igc_ethtool_set_pauseparam,
2006         .get_strings            = igc_ethtool_get_strings,
2007         .get_sset_count         = igc_ethtool_get_sset_count,
2008         .get_ethtool_stats      = igc_ethtool_get_stats,
2009         .get_coalesce           = igc_ethtool_get_coalesce,
2010         .set_coalesce           = igc_ethtool_set_coalesce,
2011         .get_rxnfc              = igc_ethtool_get_rxnfc,
2012         .set_rxnfc              = igc_ethtool_set_rxnfc,
2013         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
2014         .get_rxfh               = igc_ethtool_get_rxfh,
2015         .set_rxfh               = igc_ethtool_set_rxfh,
2016         .get_ts_info            = igc_ethtool_get_ts_info,
2017         .get_channels           = igc_ethtool_get_channels,
2018         .set_channels           = igc_ethtool_set_channels,
2019         .get_priv_flags         = igc_ethtool_get_priv_flags,
2020         .set_priv_flags         = igc_ethtool_set_priv_flags,
2021         .get_eee                = igc_ethtool_get_eee,
2022         .set_eee                = igc_ethtool_set_eee,
2023         .begin                  = igc_ethtool_begin,
2024         .complete               = igc_ethtool_complete,
2025         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
2026         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
2027         .self_test              = igc_ethtool_diag_test,
2028 };
2029
2030 void igc_ethtool_set_ops(struct net_device *netdev)
2031 {
2032         netdev->ethtool_ops = &igc_ethtool_ops;
2033 }