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_coalesce(struct net_device *netdev,
 872                                     struct ethtool_coalesce *ec,
 873                                     struct kernel_ethtool_coalesce *kernel_coal,
 874                                     struct netlink_ext_ack *extack)
 875 {
 876         struct igc_adapter *adapter = netdev_priv(netdev);
 877
 878         if (adapter->rx_itr_setting <= 3)
 879                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
 880         else
 881                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
 882
 883         if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
 884                 if (adapter->tx_itr_setting <= 3)
 885                         ec->tx_coalesce_usecs = adapter->tx_itr_setting;
 886                 else
 887                         ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
 888         }
 889
 890         return 0;
 891 }
 892
 893 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 894                                     struct ethtool_coalesce *ec,
 895                                     struct kernel_ethtool_coalesce *kernel_coal,
 896                                     struct netlink_ext_ack *extack)
 897 {
 898         struct igc_adapter *adapter = netdev_priv(netdev);
 899         int i;
 900
 901         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 902             (ec->rx_coalesce_usecs > 3 &&
 903              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 904             ec->rx_coalesce_usecs == 2)
 905                 return -EINVAL;
 906
 907         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 908             (ec->tx_coalesce_usecs > 3 &&
 909              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 910             ec->tx_coalesce_usecs == 2)
 911                 return -EINVAL;
 912
 913         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
 914                 return -EINVAL;
 915
 916         /* If ITR is disabled, disable DMAC */
 917         if (ec->rx_coalesce_usecs == 0) {
 918                 if (adapter->flags & IGC_FLAG_DMAC)
 919                         adapter->flags &= ~IGC_FLAG_DMAC;
 920         }
 921
 922         /* convert to rate of irq's per second */
 923         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 924                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 925         else
 926                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 927
 928         /* convert to rate of irq's per second */
 929         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 930                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 931         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 932                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 933         else
 934                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 935
 936         for (i = 0; i < adapter->num_q_vectors; i++) {
 937                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 938
 939                 q_vector->tx.work_limit = adapter->tx_work_limit;
 940                 if (q_vector->rx.ring)
 941                         q_vector->itr_val = adapter->rx_itr_setting;
 942                 else
 943                         q_vector->itr_val = adapter->tx_itr_setting;
 944                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 945                         q_vector->itr_val = IGC_START_ITR;
 946                 q_vector->set_itr = 1;
 947         }
 948
 949         return 0;
 950 }
 951
 952 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 953 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 954                                     struct ethtool_rxnfc *cmd)
 955 {
 956         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 957         struct igc_nfc_rule *rule = NULL;
 958
 959         cmd->data = IGC_MAX_RXNFC_RULES;
 960
 961         mutex_lock(&adapter->nfc_rule_lock);
 962
 963         rule = igc_get_nfc_rule(adapter, fsp->location);
 964         if (!rule)
 965                 goto out;
 966
 967         fsp->flow_type = ETHER_FLOW;
 968         fsp->ring_cookie = rule->action;
 969
 970         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 971                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 972                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 973         }
 974
 975         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 976                 fsp->flow_type |= FLOW_EXT;
 977                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 978                 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
 979         }
 980
 981         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 982                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 983                                 rule->filter.dst_addr);
 984                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 985         }
 986
 987         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
 988                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
 989                                 rule->filter.src_addr);
 990                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
 991         }
 992
 993         if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
 994                 fsp->flow_type |= FLOW_EXT;
 995                 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
 996                 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
 997         }
 998
 999         mutex_unlock(&adapter->nfc_rule_lock);
1000         return 0;
1001
1002 out:
1003         mutex_unlock(&adapter->nfc_rule_lock);
1004         return -EINVAL;
1005 }
1006
1007 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1008                                      struct ethtool_rxnfc *cmd,
1009                                      u32 *rule_locs)
1010 {
1011         struct igc_nfc_rule *rule;
1012         int cnt = 0;
1013
1014         cmd->data = IGC_MAX_RXNFC_RULES;
1015
1016         mutex_lock(&adapter->nfc_rule_lock);
1017
1018         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1019                 if (cnt == cmd->rule_cnt) {
1020                         mutex_unlock(&adapter->nfc_rule_lock);
1021                         return -EMSGSIZE;
1022                 }
1023                 rule_locs[cnt] = rule->location;
1024                 cnt++;
1025         }
1026
1027         mutex_unlock(&adapter->nfc_rule_lock);
1028
1029         cmd->rule_cnt = cnt;
1030
1031         return 0;
1032 }
1033
1034 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1035                                          struct ethtool_rxnfc *cmd)
1036 {
1037         cmd->data = 0;
1038
1039         /* Report default options for RSS on igc */
1040         switch (cmd->flow_type) {
1041         case TCP_V4_FLOW:
1042                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1043                 fallthrough;
1044         case UDP_V4_FLOW:
1045                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1046                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1047                 fallthrough;
1048         case SCTP_V4_FLOW:
1049         case AH_ESP_V4_FLOW:
1050         case AH_V4_FLOW:
1051         case ESP_V4_FLOW:
1052         case IPV4_FLOW:
1053                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1054                 break;
1055         case TCP_V6_FLOW:
1056                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1057                 fallthrough;
1058         case UDP_V6_FLOW:
1059                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1060                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1061                 fallthrough;
1062         case SCTP_V6_FLOW:
1063         case AH_ESP_V6_FLOW:
1064         case AH_V6_FLOW:
1065         case ESP_V6_FLOW:
1066         case IPV6_FLOW:
1067                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1068                 break;
1069         default:
1070                 return -EINVAL;
1071         }
1072
1073         return 0;
1074 }
1075
1076 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1077                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1078 {
1079         struct igc_adapter *adapter = netdev_priv(dev);
1080
1081         switch (cmd->cmd) {
1082         case ETHTOOL_GRXRINGS:
1083                 cmd->data = adapter->num_rx_queues;
1084                 return 0;
1085         case ETHTOOL_GRXCLSRLCNT:
1086                 cmd->rule_cnt = adapter->nfc_rule_count;
1087                 return 0;
1088         case ETHTOOL_GRXCLSRULE:
1089                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1090         case ETHTOOL_GRXCLSRLALL:
1091                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1092         case ETHTOOL_GRXFH:
1093                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1094         default:
1095                 return -EOPNOTSUPP;
1096         }
1097 }
1098
1099 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1100                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1101 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1102                                         struct ethtool_rxnfc *nfc)
1103 {
1104         u32 flags = adapter->flags;
1105
1106         /* RSS does not support anything other than hashing
1107          * to queues on src and dst IPs and ports
1108          */
1109         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1110                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1111                 return -EINVAL;
1112
1113         switch (nfc->flow_type) {
1114         case TCP_V4_FLOW:
1115         case TCP_V6_FLOW:
1116                 if (!(nfc->data & RXH_IP_SRC) ||
1117                     !(nfc->data & RXH_IP_DST) ||
1118                     !(nfc->data & RXH_L4_B_0_1) ||
1119                     !(nfc->data & RXH_L4_B_2_3))
1120                         return -EINVAL;
1121                 break;
1122         case UDP_V4_FLOW:
1123                 if (!(nfc->data & RXH_IP_SRC) ||
1124                     !(nfc->data & RXH_IP_DST))
1125                         return -EINVAL;
1126                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1127                 case 0:
1128                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1129                         break;
1130                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1131                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1132                         break;
1133                 default:
1134                         return -EINVAL;
1135                 }
1136                 break;
1137         case UDP_V6_FLOW:
1138                 if (!(nfc->data & RXH_IP_SRC) ||
1139                     !(nfc->data & RXH_IP_DST))
1140                         return -EINVAL;
1141                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1142                 case 0:
1143                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1144                         break;
1145                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1146                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1147                         break;
1148                 default:
1149                         return -EINVAL;
1150                 }
1151                 break;
1152         case AH_ESP_V4_FLOW:
1153         case AH_V4_FLOW:
1154         case ESP_V4_FLOW:
1155         case SCTP_V4_FLOW:
1156         case AH_ESP_V6_FLOW:
1157         case AH_V6_FLOW:
1158         case ESP_V6_FLOW:
1159         case SCTP_V6_FLOW:
1160                 if (!(nfc->data & RXH_IP_SRC) ||
1161                     !(nfc->data & RXH_IP_DST) ||
1162                     (nfc->data & RXH_L4_B_0_1) ||
1163                     (nfc->data & RXH_L4_B_2_3))
1164                         return -EINVAL;
1165                 break;
1166         default:
1167                 return -EINVAL;
1168         }
1169
1170         /* if we changed something we need to update flags */
1171         if (flags != adapter->flags) {
1172                 struct igc_hw *hw = &adapter->hw;
1173                 u32 mrqc = rd32(IGC_MRQC);
1174
1175                 if ((flags & UDP_RSS_FLAGS) &&
1176                     !(adapter->flags & UDP_RSS_FLAGS))
1177                         netdev_err(adapter->netdev,
1178                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1179
1180                 adapter->flags = flags;
1181
1182                 /* Perform hash on these packet types */
1183                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1184                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1185                         IGC_MRQC_RSS_FIELD_IPV6 |
1186                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1187
1188                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1189                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1190
1191                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1192                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1193
1194                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1195                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1196
1197                 wr32(IGC_MRQC, mrqc);
1198         }
1199
1200         return 0;
1201 }
1202
1203 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1204                                       const struct ethtool_rx_flow_spec *fsp)
1205 {
1206         INIT_LIST_HEAD(&rule->list);
1207
1208         rule->action = fsp->ring_cookie;
1209         rule->location = fsp->location;
1210
1211         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1212                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1213                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1214         }
1215
1216         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1217                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1218                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1219         }
1220
1221         /* Both source and destination address filters only support the full
1222          * mask.
1223          */
1224         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1225                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1226                 ether_addr_copy(rule->filter.src_addr,
1227                                 fsp->h_u.ether_spec.h_source);
1228         }
1229
1230         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1231                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1232                 ether_addr_copy(rule->filter.dst_addr,
1233                                 fsp->h_u.ether_spec.h_dest);
1234         }
1235
1236         /* VLAN etype matching */
1237         if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
1238                 rule->filter.vlan_etype = fsp->h_ext.vlan_etype;
1239                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
1240         }
1241
1242         /* Check for user defined data */
1243         if ((fsp->flow_type & FLOW_EXT) &&
1244             (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
1245                 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
1246                 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
1247                 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
1248         }
1249
1250         /* When multiple filter options or user data or vlan etype is set, use a
1251          * flex filter.
1252          */
1253         if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
1254             (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
1255             (rule->filter.match_flags & (rule->filter.match_flags - 1)))
1256                 rule->flex = true;
1257         else
1258                 rule->flex = false;
1259 }
1260
1261 /**
1262  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1263  * @adapter: Pointer to adapter
1264  * @rule: Rule under evaluation
1265  *
1266  * The driver doesn't support rules with multiple matches so if more than
1267  * one bit in filter flags is set, @rule is considered invalid.
1268  *
1269  * Also, if there is already another rule with the same filter in a different
1270  * location, @rule is considered invalid.
1271  *
1272  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1273  *
1274  * Return: 0 in case of success, negative errno code otherwise.
1275  */
1276 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1277                                       struct igc_nfc_rule *rule)
1278 {
1279         struct net_device *dev = adapter->netdev;
1280         u8 flags = rule->filter.match_flags;
1281         struct igc_nfc_rule *tmp;
1282
1283         if (!flags) {
1284                 netdev_dbg(dev, "Rule with no match\n");
1285                 return -EINVAL;
1286         }
1287
1288         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1289                 if (!memcmp(&rule->filter, &tmp->filter,
1290                             sizeof(rule->filter)) &&
1291                     tmp->location != rule->location) {
1292                         netdev_dbg(dev, "Rule already exists\n");
1293                         return -EEXIST;
1294                 }
1295         }
1296
1297         return 0;
1298 }
1299
1300 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1301                                     struct ethtool_rxnfc *cmd)
1302 {
1303         struct net_device *netdev = adapter->netdev;
1304         struct ethtool_rx_flow_spec *fsp =
1305                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1306         struct igc_nfc_rule *rule, *old_rule;
1307         int err;
1308
1309         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1310                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1311                 return -EOPNOTSUPP;
1312         }
1313
1314         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1315                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1316                 return -EOPNOTSUPP;
1317         }
1318
1319         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1320                 netdev_dbg(netdev, "Invalid action\n");
1321                 return -EINVAL;
1322         }
1323
1324         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1325                 netdev_dbg(netdev, "Invalid location\n");
1326                 return -EINVAL;
1327         }
1328
1329         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1330         if (!rule)
1331                 return -ENOMEM;
1332
1333         igc_ethtool_init_nfc_rule(rule, fsp);
1334
1335         mutex_lock(&adapter->nfc_rule_lock);
1336
1337         err = igc_ethtool_check_nfc_rule(adapter, rule);
1338         if (err)
1339                 goto err;
1340
1341         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1342         if (old_rule)
1343                 igc_del_nfc_rule(adapter, old_rule);
1344
1345         err = igc_add_nfc_rule(adapter, rule);
1346         if (err)
1347                 goto err;
1348
1349         mutex_unlock(&adapter->nfc_rule_lock);
1350         return 0;
1351
1352 err:
1353         mutex_unlock(&adapter->nfc_rule_lock);
1354         kfree(rule);
1355         return err;
1356 }
1357
1358 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1359                                     struct ethtool_rxnfc *cmd)
1360 {
1361         struct ethtool_rx_flow_spec *fsp =
1362                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1363         struct igc_nfc_rule *rule;
1364
1365         mutex_lock(&adapter->nfc_rule_lock);
1366
1367         rule = igc_get_nfc_rule(adapter, fsp->location);
1368         if (!rule) {
1369                 mutex_unlock(&adapter->nfc_rule_lock);
1370                 return -EINVAL;
1371         }
1372
1373         igc_del_nfc_rule(adapter, rule);
1374
1375         mutex_unlock(&adapter->nfc_rule_lock);
1376         return 0;
1377 }
1378
1379 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1380                                  struct ethtool_rxnfc *cmd)
1381 {
1382         struct igc_adapter *adapter = netdev_priv(dev);
1383
1384         switch (cmd->cmd) {
1385         case ETHTOOL_SRXFH:
1386                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1387         case ETHTOOL_SRXCLSRLINS:
1388                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1389         case ETHTOOL_SRXCLSRLDEL:
1390                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1391         default:
1392                 return -EOPNOTSUPP;
1393         }
1394 }
1395
1396 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1397 {
1398         struct igc_hw *hw = &adapter->hw;
1399         u32 reg = IGC_RETA(0);
1400         u32 shift = 0;
1401         int i = 0;
1402
1403         while (i < IGC_RETA_SIZE) {
1404                 u32 val = 0;
1405                 int j;
1406
1407                 for (j = 3; j >= 0; j--) {
1408                         val <<= 8;
1409                         val |= adapter->rss_indir_tbl[i + j];
1410                 }
1411
1412                 wr32(reg, val << shift);
1413                 reg += 4;
1414                 i += 4;
1415         }
1416 }
1417
1418 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1419 {
1420         return IGC_RETA_SIZE;
1421 }
1422
1423 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1424                                 u8 *hfunc)
1425 {
1426         struct igc_adapter *adapter = netdev_priv(netdev);
1427         int i;
1428
1429         if (hfunc)
1430                 *hfunc = ETH_RSS_HASH_TOP;
1431         if (!indir)
1432                 return 0;
1433         for (i = 0; i < IGC_RETA_SIZE; i++)
1434                 indir[i] = adapter->rss_indir_tbl[i];
1435
1436         return 0;
1437 }
1438
1439 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1440                                 const u8 *key, const u8 hfunc)
1441 {
1442         struct igc_adapter *adapter = netdev_priv(netdev);
1443         u32 num_queues;
1444         int i;
1445
1446         /* We do not allow change in unsupported parameters */
1447         if (key ||
1448             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1449                 return -EOPNOTSUPP;
1450         if (!indir)
1451                 return 0;
1452
1453         num_queues = adapter->rss_queues;
1454
1455         /* Verify user input. */
1456         for (i = 0; i < IGC_RETA_SIZE; i++)
1457                 if (indir[i] >= num_queues)
1458                         return -EINVAL;
1459
1460         for (i = 0; i < IGC_RETA_SIZE; i++)
1461                 adapter->rss_indir_tbl[i] = indir[i];
1462
1463         igc_write_rss_indir_tbl(adapter);
1464
1465         return 0;
1466 }
1467
1468 static void igc_ethtool_get_channels(struct net_device *netdev,
1469                                      struct ethtool_channels *ch)
1470 {
1471         struct igc_adapter *adapter = netdev_priv(netdev);
1472
1473         /* Report maximum channels */
1474         ch->max_combined = igc_get_max_rss_queues(adapter);
1475
1476         /* Report info for other vector */
1477         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1478                 ch->max_other = NON_Q_VECTORS;
1479                 ch->other_count = NON_Q_VECTORS;
1480         }
1481
1482         ch->combined_count = adapter->rss_queues;
1483 }
1484
1485 static int igc_ethtool_set_channels(struct net_device *netdev,
1486                                     struct ethtool_channels *ch)
1487 {
1488         struct igc_adapter *adapter = netdev_priv(netdev);
1489         unsigned int count = ch->combined_count;
1490         unsigned int max_combined = 0;
1491
1492         /* Verify they are not requesting separate vectors */
1493         if (!count || ch->rx_count || ch->tx_count)
1494                 return -EINVAL;
1495
1496         /* Verify other_count is valid and has not been changed */
1497         if (ch->other_count != NON_Q_VECTORS)
1498                 return -EINVAL;
1499
1500         /* Verify the number of channels doesn't exceed hw limits */
1501         max_combined = igc_get_max_rss_queues(adapter);
1502         if (count > max_combined)
1503                 return -EINVAL;
1504
1505         if (count != adapter->rss_queues) {
1506                 adapter->rss_queues = count;
1507                 igc_set_flag_queue_pairs(adapter, max_combined);
1508
1509                 /* Hardware has to reinitialize queues and interrupts to
1510                  * match the new configuration.
1511                  */
1512                 return igc_reinit_queues(adapter);
1513         }
1514
1515         return 0;
1516 }
1517
1518 static int igc_ethtool_get_ts_info(struct net_device *dev,
1519                                    struct ethtool_ts_info *info)
1520 {
1521         struct igc_adapter *adapter = netdev_priv(dev);
1522
1523         if (adapter->ptp_clock)
1524                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1525         else
1526                 info->phc_index = -1;
1527
1528         switch (adapter->hw.mac.type) {
1529         case igc_i225:
1530                 info->so_timestamping =
1531                         SOF_TIMESTAMPING_TX_SOFTWARE |
1532                         SOF_TIMESTAMPING_RX_SOFTWARE |
1533                         SOF_TIMESTAMPING_SOFTWARE |
1534                         SOF_TIMESTAMPING_TX_HARDWARE |
1535                         SOF_TIMESTAMPING_RX_HARDWARE |
1536                         SOF_TIMESTAMPING_RAW_HARDWARE;
1537
1538                 info->tx_types =
1539                         BIT(HWTSTAMP_TX_OFF) |
1540                         BIT(HWTSTAMP_TX_ON);
1541
1542                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1543                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1544
1545                 return 0;
1546         default:
1547                 return -EOPNOTSUPP;
1548         }
1549 }
1550
1551 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1552 {
1553         struct igc_adapter *adapter = netdev_priv(netdev);
1554         u32 priv_flags = 0;
1555
1556         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1557                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1558
1559         return priv_flags;
1560 }
1561
1562 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1563 {
1564         struct igc_adapter *adapter = netdev_priv(netdev);
1565         unsigned int flags = adapter->flags;
1566
1567         flags &= ~IGC_FLAG_RX_LEGACY;
1568         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1569                 flags |= IGC_FLAG_RX_LEGACY;
1570
1571         if (flags != adapter->flags) {
1572                 adapter->flags = flags;
1573
1574                 /* reset interface to repopulate queues */
1575                 if (netif_running(netdev))
1576                         igc_reinit_locked(adapter);
1577         }
1578
1579         return 0;
1580 }
1581
1582 static int igc_ethtool_get_eee(struct net_device *netdev,
1583                                struct ethtool_eee *edata)
1584 {
1585         struct igc_adapter *adapter = netdev_priv(netdev);
1586         struct igc_hw *hw = &adapter->hw;
1587         u32 eeer;
1588
1589         if (hw->dev_spec._base.eee_enable)
1590                 edata->advertised =
1591                         mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1592
1593         *edata = adapter->eee;
1594         edata->supported = SUPPORTED_Autoneg;
1595
1596         eeer = rd32(IGC_EEER);
1597
1598         /* EEE status on negotiated link */
1599         if (eeer & IGC_EEER_EEE_NEG)
1600                 edata->eee_active = true;
1601
1602         if (eeer & IGC_EEER_TX_LPI_EN)
1603                 edata->tx_lpi_enabled = true;
1604
1605         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1606
1607         edata->advertised = SUPPORTED_Autoneg;
1608         edata->lp_advertised = SUPPORTED_Autoneg;
1609
1610         /* Report correct negotiated EEE status for devices that
1611          * wrongly report EEE at half-duplex
1612          */
1613         if (adapter->link_duplex == HALF_DUPLEX) {
1614                 edata->eee_enabled = false;
1615                 edata->eee_active = false;
1616                 edata->tx_lpi_enabled = false;
1617                 edata->advertised &= ~edata->advertised;
1618         }
1619
1620         return 0;
1621 }
1622
1623 static int igc_ethtool_set_eee(struct net_device *netdev,
1624                                struct ethtool_eee *edata)
1625 {
1626         struct igc_adapter *adapter = netdev_priv(netdev);
1627         struct igc_hw *hw = &adapter->hw;
1628         struct ethtool_eee eee_curr;
1629         s32 ret_val;
1630
1631         memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1632
1633         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1634         if (ret_val) {
1635                 netdev_err(netdev,
1636                            "Problem setting EEE advertisement options\n");
1637                 return -EINVAL;
1638         }
1639
1640         if (eee_curr.eee_enabled) {
1641                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1642                         netdev_err(netdev,
1643                                    "Setting EEE tx-lpi is not supported\n");
1644                         return -EINVAL;
1645                 }
1646
1647                 /* Tx LPI timer is not implemented currently */
1648                 if (edata->tx_lpi_timer) {
1649                         netdev_err(netdev,
1650                                    "Setting EEE Tx LPI timer is not supported\n");
1651                         return -EINVAL;
1652                 }
1653         } else if (!edata->eee_enabled) {
1654                 netdev_err(netdev,
1655                            "Setting EEE options are not supported with EEE disabled\n");
1656                 return -EINVAL;
1657         }
1658
1659         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1660         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1661                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1662                 adapter->flags |= IGC_FLAG_EEE;
1663
1664                 /* reset link */
1665                 if (netif_running(netdev))
1666                         igc_reinit_locked(adapter);
1667                 else
1668                         igc_reset(adapter);
1669         }
1670
1671         return 0;
1672 }
1673
1674 static int igc_ethtool_begin(struct net_device *netdev)
1675 {
1676         struct igc_adapter *adapter = netdev_priv(netdev);
1677
1678         pm_runtime_get_sync(&adapter->pdev->dev);
1679         return 0;
1680 }
1681
1682 static void igc_ethtool_complete(struct net_device *netdev)
1683 {
1684         struct igc_adapter *adapter = netdev_priv(netdev);
1685
1686         pm_runtime_put(&adapter->pdev->dev);
1687 }
1688
1689 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1690                                           struct ethtool_link_ksettings *cmd)
1691 {
1692         struct igc_adapter *adapter = netdev_priv(netdev);
1693         struct igc_hw *hw = &adapter->hw;
1694         u32 status;
1695         u32 speed;
1696
1697         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1698         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1699
1700         /* supported link modes */
1701         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1702         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1703         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1704         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1705         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1706         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1707
1708         /* twisted pair */
1709         cmd->base.port = PORT_TP;
1710         cmd->base.phy_address = hw->phy.addr;
1711
1712         /* advertising link modes */
1713         if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1714                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1715         if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1716                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1717         if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1718                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1719         if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1720                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1721         if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1722                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1723         if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1724                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1725
1726         /* set autoneg settings */
1727         if (hw->mac.autoneg == 1) {
1728                 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1729                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1730                                                      Autoneg);
1731         }
1732
1733         /* Set pause flow control settings */
1734         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1735
1736         switch (hw->fc.requested_mode) {
1737         case igc_fc_full:
1738                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1739                 break;
1740         case igc_fc_rx_pause:
1741                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1742                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1743                                                      Asym_Pause);
1744                 break;
1745         case igc_fc_tx_pause:
1746                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1747                                                      Asym_Pause);
1748                 break;
1749         default:
1750                 break;
1751         }
1752
1753         status = pm_runtime_suspended(&adapter->pdev->dev) ?
1754                  0 : rd32(IGC_STATUS);
1755
1756         if (status & IGC_STATUS_LU) {
1757                 if (status & IGC_STATUS_SPEED_1000) {
1758                         /* For I225, STATUS will indicate 1G speed in both
1759                          * 1 Gbps and 2.5 Gbps link modes.
1760                          * An additional bit is used
1761                          * to differentiate between 1 Gbps and 2.5 Gbps.
1762                          */
1763                         if (hw->mac.type == igc_i225 &&
1764                             (status & IGC_STATUS_SPEED_2500)) {
1765                                 speed = SPEED_2500;
1766                         } else {
1767                                 speed = SPEED_1000;
1768                         }
1769                 } else if (status & IGC_STATUS_SPEED_100) {
1770                         speed = SPEED_100;
1771                 } else {
1772                         speed = SPEED_10;
1773                 }
1774                 if ((status & IGC_STATUS_FD) ||
1775                     hw->phy.media_type != igc_media_type_copper)
1776                         cmd->base.duplex = DUPLEX_FULL;
1777                 else
1778                         cmd->base.duplex = DUPLEX_HALF;
1779         } else {
1780                 speed = SPEED_UNKNOWN;
1781                 cmd->base.duplex = DUPLEX_UNKNOWN;
1782         }
1783         cmd->base.speed = speed;
1784         if (hw->mac.autoneg)
1785                 cmd->base.autoneg = AUTONEG_ENABLE;
1786         else
1787                 cmd->base.autoneg = AUTONEG_DISABLE;
1788
1789         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1790         if (hw->phy.media_type == igc_media_type_copper)
1791                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1792                                                       ETH_TP_MDI;
1793         else
1794                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1795
1796         if (hw->phy.mdix == AUTO_ALL_MODES)
1797                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1798         else
1799                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1800
1801         return 0;
1802 }
1803
1804 static int
1805 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1806                                const struct ethtool_link_ksettings *cmd)
1807 {
1808         struct igc_adapter *adapter = netdev_priv(netdev);
1809         struct net_device *dev = adapter->netdev;
1810         struct igc_hw *hw = &adapter->hw;
1811         u32 advertising;
1812
1813         /* When adapter in resetting mode, autoneg/speed/duplex
1814          * cannot be changed
1815          */
1816         if (igc_check_reset_block(hw)) {
1817                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1818                 return -EINVAL;
1819         }
1820
1821         /* MDI setting is only allowed when autoneg enabled because
1822          * some hardware doesn't allow MDI setting when speed or
1823          * duplex is forced.
1824          */
1825         if (cmd->base.eth_tp_mdix_ctrl) {
1826                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1827                     cmd->base.autoneg != AUTONEG_ENABLE) {
1828                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1829                         return -EINVAL;
1830                 }
1831         }
1832
1833         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1834                 usleep_range(1000, 2000);
1835
1836         ethtool_convert_link_mode_to_legacy_u32(&advertising,
1837                                                 cmd->link_modes.advertising);
1838         /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
1839          * We have to check this and convert it to ADVERTISE_2500_FULL
1840          * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
1841          */
1842         if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
1843                 advertising |= ADVERTISE_2500_FULL;
1844
1845         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1846                 hw->mac.autoneg = 1;
1847                 hw->phy.autoneg_advertised = advertising;
1848                 if (adapter->fc_autoneg)
1849                         hw->fc.requested_mode = igc_fc_default;
1850         } else {
1851                 netdev_info(dev, "Force mode currently not supported\n");
1852         }
1853
1854         /* MDI-X => 2; MDI => 1; Auto => 3 */
1855         if (cmd->base.eth_tp_mdix_ctrl) {
1856                 /* fix up the value for auto (3 => 0) as zero is mapped
1857                  * internally to auto
1858                  */
1859                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1860                         hw->phy.mdix = AUTO_ALL_MODES;
1861                 else
1862                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1863         }
1864
1865         /* reset the link */
1866         if (netif_running(adapter->netdev)) {
1867                 igc_down(adapter);
1868                 igc_up(adapter);
1869         } else {
1870                 igc_reset(adapter);
1871         }
1872
1873         clear_bit(__IGC_RESETTING, &adapter->state);
1874
1875         return 0;
1876 }
1877
1878 static void igc_ethtool_diag_test(struct net_device *netdev,
1879                                   struct ethtool_test *eth_test, u64 *data)
1880 {
1881         struct igc_adapter *adapter = netdev_priv(netdev);
1882         bool if_running = netif_running(netdev);
1883
1884         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1885                 netdev_info(adapter->netdev, "Offline testing starting");
1886                 set_bit(__IGC_TESTING, &adapter->state);
1887
1888                 /* Link test performed before hardware reset so autoneg doesn't
1889                  * interfere with test result
1890                  */
1891                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1892                         eth_test->flags |= ETH_TEST_FL_FAILED;
1893
1894                 if (if_running)
1895                         igc_close(netdev);
1896                 else
1897                         igc_reset(adapter);
1898
1899                 netdev_info(adapter->netdev, "Register testing starting");
1900                 if (!igc_reg_test(adapter, &data[TEST_REG]))
1901                         eth_test->flags |= ETH_TEST_FL_FAILED;
1902
1903                 igc_reset(adapter);
1904
1905                 netdev_info(adapter->netdev, "EEPROM testing starting");
1906                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1907                         eth_test->flags |= ETH_TEST_FL_FAILED;
1908
1909                 igc_reset(adapter);
1910
1911                 /* loopback and interrupt tests
1912                  * will be implemented in the future
1913                  */
1914                 data[TEST_LOOP] = 0;
1915                 data[TEST_IRQ] = 0;
1916
1917                 clear_bit(__IGC_TESTING, &adapter->state);
1918                 if (if_running)
1919                         igc_open(netdev);
1920         } else {
1921                 netdev_info(adapter->netdev, "Online testing starting");
1922
1923                 /* register, eeprom, intr and loopback tests not run online */
1924                 data[TEST_REG] = 0;
1925                 data[TEST_EEP] = 0;
1926                 data[TEST_IRQ] = 0;
1927                 data[TEST_LOOP] = 0;
1928
1929                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1930                         eth_test->flags |= ETH_TEST_FL_FAILED;
1931         }
1932
1933         msleep_interruptible(4 * 1000);
1934 }
1935
1936 static const struct ethtool_ops igc_ethtool_ops = {
1937         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1938         .get_drvinfo            = igc_ethtool_get_drvinfo,
1939         .get_regs_len           = igc_ethtool_get_regs_len,
1940         .get_regs               = igc_ethtool_get_regs,
1941         .get_wol                = igc_ethtool_get_wol,
1942         .set_wol                = igc_ethtool_set_wol,
1943         .get_msglevel           = igc_ethtool_get_msglevel,
1944         .set_msglevel           = igc_ethtool_set_msglevel,
1945         .nway_reset             = igc_ethtool_nway_reset,
1946         .get_link               = igc_ethtool_get_link,
1947         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
1948         .get_eeprom             = igc_ethtool_get_eeprom,
1949         .set_eeprom             = igc_ethtool_set_eeprom,
1950         .get_ringparam          = igc_ethtool_get_ringparam,
1951         .set_ringparam          = igc_ethtool_set_ringparam,
1952         .get_pauseparam         = igc_ethtool_get_pauseparam,
1953         .set_pauseparam         = igc_ethtool_set_pauseparam,
1954         .get_strings            = igc_ethtool_get_strings,
1955         .get_sset_count         = igc_ethtool_get_sset_count,
1956         .get_ethtool_stats      = igc_ethtool_get_stats,
1957         .get_coalesce           = igc_ethtool_get_coalesce,
1958         .set_coalesce           = igc_ethtool_set_coalesce,
1959         .get_rxnfc              = igc_ethtool_get_rxnfc,
1960         .set_rxnfc              = igc_ethtool_set_rxnfc,
1961         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
1962         .get_rxfh               = igc_ethtool_get_rxfh,
1963         .set_rxfh               = igc_ethtool_set_rxfh,
1964         .get_ts_info            = igc_ethtool_get_ts_info,
1965         .get_channels           = igc_ethtool_get_channels,
1966         .set_channels           = igc_ethtool_set_channels,
1967         .get_priv_flags         = igc_ethtool_get_priv_flags,
1968         .set_priv_flags         = igc_ethtool_set_priv_flags,
1969         .get_eee                = igc_ethtool_get_eee,
1970         .set_eee                = igc_ethtool_set_eee,
1971         .begin                  = igc_ethtool_begin,
1972         .complete               = igc_ethtool_complete,
1973         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
1974         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
1975         .self_test              = igc_ethtool_diag_test,
1976 };
1977
1978 void igc_ethtool_set_ops(struct net_device *netdev)
1979 {
1980         netdev->ethtool_ops = &igc_ethtool_ops;
1981 }