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_puts(&p, igc_gstrings_stats[i].stat_string);
 777                 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
 778                         ethtool_puts(&p, igc_gstrings_net_stats[i].stat_string);
 779                 for (i = 0; i < adapter->num_tx_queues; i++) {
 780                         ethtool_sprintf(&p, "tx_queue_%u_packets", i);
 781                         ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
 782                         ethtool_sprintf(&p, "tx_queue_%u_restart", i);
 783                 }
 784                 for (i = 0; i < adapter->num_rx_queues; i++) {
 785                         ethtool_sprintf(&p, "rx_queue_%u_packets", i);
 786                         ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
 787                         ethtool_sprintf(&p, "rx_queue_%u_drops", i);
 788                         ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
 789                         ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
 790                 }
 791                 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
 792                 break;
 793         case ETH_SS_PRIV_FLAGS:
 794                 memcpy(data, igc_priv_flags_strings,
 795                        IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 796                 break;
 797         }
 798 }
 799
 800 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 801 {
 802         switch (sset) {
 803         case ETH_SS_STATS:
 804                 return IGC_STATS_LEN;
 805         case ETH_SS_TEST:
 806                 return IGC_TEST_LEN;
 807         case ETH_SS_PRIV_FLAGS:
 808                 return IGC_PRIV_FLAGS_STR_LEN;
 809         default:
 810                 return -ENOTSUPP;
 811         }
 812 }
 813
 814 static void igc_ethtool_get_stats(struct net_device *netdev,
 815                                   struct ethtool_stats *stats, u64 *data)
 816 {
 817         struct igc_adapter *adapter = netdev_priv(netdev);
 818         struct rtnl_link_stats64 *net_stats = &adapter->stats64;
 819         unsigned int start;
 820         struct igc_ring *ring;
 821         int i, j;
 822         char *p;
 823
 824         spin_lock(&adapter->stats64_lock);
 825         igc_update_stats(adapter);
 826
 827         for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 828                 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
 829                 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
 830                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 831         }
 832         for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
 833                 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
 834                 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
 835                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 836         }
 837         for (j = 0; j < adapter->num_tx_queues; j++) {
 838                 u64     restart2;
 839
 840                 ring = adapter->tx_ring[j];
 841                 do {
 842                         start = u64_stats_fetch_begin(&ring->tx_syncp);
 843                         data[i]   = ring->tx_stats.packets;
 844                         data[i + 1] = ring->tx_stats.bytes;
 845                         data[i + 2] = ring->tx_stats.restart_queue;
 846                 } while (u64_stats_fetch_retry(&ring->tx_syncp, start));
 847                 do {
 848                         start = u64_stats_fetch_begin(&ring->tx_syncp2);
 849                         restart2  = ring->tx_stats.restart_queue2;
 850                 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start));
 851                 data[i + 2] += restart2;
 852
 853                 i += IGC_TX_QUEUE_STATS_LEN;
 854         }
 855         for (j = 0; j < adapter->num_rx_queues; j++) {
 856                 ring = adapter->rx_ring[j];
 857                 do {
 858                         start = u64_stats_fetch_begin(&ring->rx_syncp);
 859                         data[i]   = ring->rx_stats.packets;
 860                         data[i + 1] = ring->rx_stats.bytes;
 861                         data[i + 2] = ring->rx_stats.drops;
 862                         data[i + 3] = ring->rx_stats.csum_err;
 863                         data[i + 4] = ring->rx_stats.alloc_failed;
 864                 } while (u64_stats_fetch_retry(&ring->rx_syncp, start));
 865                 i += IGC_RX_QUEUE_STATS_LEN;
 866         }
 867         spin_unlock(&adapter->stats64_lock);
 868 }
 869
 870 static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)
 871 {
 872         return (adapter->rx_itr_setting <= 3) ?
 873                 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
 874 }
 875
 876 static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
 877 {
 878         return (adapter->tx_itr_setting <= 3) ?
 879                 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
 880 }
 881
 882 static int igc_ethtool_get_coalesce(struct net_device *netdev,
 883                                     struct ethtool_coalesce *ec,
 884                                     struct kernel_ethtool_coalesce *kernel_coal,
 885                                     struct netlink_ext_ack *extack)
 886 {
 887         struct igc_adapter *adapter = netdev_priv(netdev);
 888
 889         ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
 890         ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
 891
 892         return 0;
 893 }
 894
 895 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 896                                     struct ethtool_coalesce *ec,
 897                                     struct kernel_ethtool_coalesce *kernel_coal,
 898                                     struct netlink_ext_ack *extack)
 899 {
 900         struct igc_adapter *adapter = netdev_priv(netdev);
 901         int i;
 902
 903         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 904             (ec->rx_coalesce_usecs > 3 &&
 905              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 906             ec->rx_coalesce_usecs == 2)
 907                 return -EINVAL;
 908
 909         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 910             (ec->tx_coalesce_usecs > 3 &&
 911              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 912             ec->tx_coalesce_usecs == 2)
 913                 return -EINVAL;
 914
 915         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&
 916             ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {
 917                 NL_SET_ERR_MSG_MOD(extack,
 918                                    "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");
 919                 return -EINVAL;
 920         }
 921
 922         /* If ITR is disabled, disable DMAC */
 923         if (ec->rx_coalesce_usecs == 0) {
 924                 if (adapter->flags & IGC_FLAG_DMAC)
 925                         adapter->flags &= ~IGC_FLAG_DMAC;
 926         }
 927
 928         /* convert to rate of irq's per second */
 929         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 930                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 931         else
 932                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 933
 934         /* convert to rate of irq's per second */
 935         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 936                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 937         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 938                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 939         else
 940                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 941
 942         for (i = 0; i < adapter->num_q_vectors; i++) {
 943                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 944
 945                 q_vector->tx.work_limit = adapter->tx_work_limit;
 946                 if (q_vector->rx.ring)
 947                         q_vector->itr_val = adapter->rx_itr_setting;
 948                 else
 949                         q_vector->itr_val = adapter->tx_itr_setting;
 950                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 951                         q_vector->itr_val = IGC_START_ITR;
 952                 q_vector->set_itr = 1;
 953         }
 954
 955         return 0;
 956 }
 957
 958 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 959 #define VLAN_TCI_FULL_MASK ((__force __be16)~0)
 960 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 961                                     struct ethtool_rxnfc *cmd)
 962 {
 963         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 964         struct igc_nfc_rule *rule = NULL;
 965
 966         cmd->data = IGC_MAX_RXNFC_RULES;
 967
 968         mutex_lock(&adapter->nfc_rule_lock);
 969
 970         rule = igc_get_nfc_rule(adapter, fsp->location);
 971         if (!rule)
 972                 goto out;
 973
 974         fsp->flow_type = ETHER_FLOW;
 975         fsp->ring_cookie = rule->action;
 976
 977         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 978                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 979                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 980         }
 981
 982         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) {
 983                 fsp->flow_type |= FLOW_EXT;
 984                 fsp->h_ext.vlan_etype = htons(rule->filter.vlan_etype);
 985                 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK;
 986         }
 987
 988         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 989                 fsp->flow_type |= FLOW_EXT;
 990                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 991                 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask);
 992         }
 993
 994         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 995                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 996                                 rule->filter.dst_addr);
 997                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 998         }
 999
1000         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
1001                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
1002                                 rule->filter.src_addr);
1003                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
1004         }
1005
1006         if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
1007                 fsp->flow_type |= FLOW_EXT;
1008                 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
1009                 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
1010         }
1011
1012         mutex_unlock(&adapter->nfc_rule_lock);
1013         return 0;
1014
1015 out:
1016         mutex_unlock(&adapter->nfc_rule_lock);
1017         return -EINVAL;
1018 }
1019
1020 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1021                                      struct ethtool_rxnfc *cmd,
1022                                      u32 *rule_locs)
1023 {
1024         struct igc_nfc_rule *rule;
1025         int cnt = 0;
1026
1027         cmd->data = IGC_MAX_RXNFC_RULES;
1028
1029         mutex_lock(&adapter->nfc_rule_lock);
1030
1031         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1032                 if (cnt == cmd->rule_cnt) {
1033                         mutex_unlock(&adapter->nfc_rule_lock);
1034                         return -EMSGSIZE;
1035                 }
1036                 rule_locs[cnt] = rule->location;
1037                 cnt++;
1038         }
1039
1040         mutex_unlock(&adapter->nfc_rule_lock);
1041
1042         cmd->rule_cnt = cnt;
1043
1044         return 0;
1045 }
1046
1047 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1048                                          struct ethtool_rxnfc *cmd)
1049 {
1050         cmd->data = 0;
1051
1052         /* Report default options for RSS on igc */
1053         switch (cmd->flow_type) {
1054         case TCP_V4_FLOW:
1055                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1056                 fallthrough;
1057         case UDP_V4_FLOW:
1058                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1059                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1060                 fallthrough;
1061         case SCTP_V4_FLOW:
1062         case AH_ESP_V4_FLOW:
1063         case AH_V4_FLOW:
1064         case ESP_V4_FLOW:
1065         case IPV4_FLOW:
1066                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1067                 break;
1068         case TCP_V6_FLOW:
1069                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1070                 fallthrough;
1071         case UDP_V6_FLOW:
1072                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1073                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1074                 fallthrough;
1075         case SCTP_V6_FLOW:
1076         case AH_ESP_V6_FLOW:
1077         case AH_V6_FLOW:
1078         case ESP_V6_FLOW:
1079         case IPV6_FLOW:
1080                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1081                 break;
1082         default:
1083                 return -EINVAL;
1084         }
1085
1086         return 0;
1087 }
1088
1089 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1090                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1091 {
1092         struct igc_adapter *adapter = netdev_priv(dev);
1093
1094         switch (cmd->cmd) {
1095         case ETHTOOL_GRXRINGS:
1096                 cmd->data = adapter->num_rx_queues;
1097                 return 0;
1098         case ETHTOOL_GRXCLSRLCNT:
1099                 cmd->rule_cnt = adapter->nfc_rule_count;
1100                 return 0;
1101         case ETHTOOL_GRXCLSRULE:
1102                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1103         case ETHTOOL_GRXCLSRLALL:
1104                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1105         case ETHTOOL_GRXFH:
1106                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1107         default:
1108                 return -EOPNOTSUPP;
1109         }
1110 }
1111
1112 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1113                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1114 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1115                                         struct ethtool_rxnfc *nfc)
1116 {
1117         u32 flags = adapter->flags;
1118
1119         /* RSS does not support anything other than hashing
1120          * to queues on src and dst IPs and ports
1121          */
1122         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1123                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1124                 return -EINVAL;
1125
1126         switch (nfc->flow_type) {
1127         case TCP_V4_FLOW:
1128         case TCP_V6_FLOW:
1129                 if (!(nfc->data & RXH_IP_SRC) ||
1130                     !(nfc->data & RXH_IP_DST) ||
1131                     !(nfc->data & RXH_L4_B_0_1) ||
1132                     !(nfc->data & RXH_L4_B_2_3))
1133                         return -EINVAL;
1134                 break;
1135         case UDP_V4_FLOW:
1136                 if (!(nfc->data & RXH_IP_SRC) ||
1137                     !(nfc->data & RXH_IP_DST))
1138                         return -EINVAL;
1139                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1140                 case 0:
1141                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1142                         break;
1143                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1144                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1145                         break;
1146                 default:
1147                         return -EINVAL;
1148                 }
1149                 break;
1150         case UDP_V6_FLOW:
1151                 if (!(nfc->data & RXH_IP_SRC) ||
1152                     !(nfc->data & RXH_IP_DST))
1153                         return -EINVAL;
1154                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1155                 case 0:
1156                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1157                         break;
1158                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1159                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1160                         break;
1161                 default:
1162                         return -EINVAL;
1163                 }
1164                 break;
1165         case AH_ESP_V4_FLOW:
1166         case AH_V4_FLOW:
1167         case ESP_V4_FLOW:
1168         case SCTP_V4_FLOW:
1169         case AH_ESP_V6_FLOW:
1170         case AH_V6_FLOW:
1171         case ESP_V6_FLOW:
1172         case SCTP_V6_FLOW:
1173                 if (!(nfc->data & RXH_IP_SRC) ||
1174                     !(nfc->data & RXH_IP_DST) ||
1175                     (nfc->data & RXH_L4_B_0_1) ||
1176                     (nfc->data & RXH_L4_B_2_3))
1177                         return -EINVAL;
1178                 break;
1179         default:
1180                 return -EINVAL;
1181         }
1182
1183         /* if we changed something we need to update flags */
1184         if (flags != adapter->flags) {
1185                 struct igc_hw *hw = &adapter->hw;
1186                 u32 mrqc = rd32(IGC_MRQC);
1187
1188                 if ((flags & UDP_RSS_FLAGS) &&
1189                     !(adapter->flags & UDP_RSS_FLAGS))
1190                         netdev_err(adapter->netdev,
1191                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1192
1193                 adapter->flags = flags;
1194
1195                 /* Perform hash on these packet types */
1196                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1197                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1198                         IGC_MRQC_RSS_FIELD_IPV6 |
1199                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1200
1201                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1202                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1203
1204                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1205                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1206
1207                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1208                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1209
1210                 wr32(IGC_MRQC, mrqc);
1211         }
1212
1213         return 0;
1214 }
1215
1216 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1217                                       const struct ethtool_rx_flow_spec *fsp)
1218 {
1219         INIT_LIST_HEAD(&rule->list);
1220
1221         rule->action = fsp->ring_cookie;
1222         rule->location = fsp->location;
1223
1224         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1225                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1226                 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);
1227                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1228         }
1229
1230         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1231                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1232                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1233         }
1234
1235         /* Both source and destination address filters only support the full
1236          * mask.
1237          */
1238         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1239                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1240                 ether_addr_copy(rule->filter.src_addr,
1241                                 fsp->h_u.ether_spec.h_source);
1242         }
1243
1244         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1245                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1246                 ether_addr_copy(rule->filter.dst_addr,
1247                                 fsp->h_u.ether_spec.h_dest);
1248         }
1249
1250         /* VLAN etype matching */
1251         if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
1252                 rule->filter.vlan_etype = ntohs(fsp->h_ext.vlan_etype);
1253                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
1254         }
1255
1256         /* Check for user defined data */
1257         if ((fsp->flow_type & FLOW_EXT) &&
1258             (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
1259                 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
1260                 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
1261                 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
1262         }
1263
1264         /* The i225/i226 has various different filters. Flex filters provide a
1265          * way to match up to the first 128 bytes of a packet. Use them for:
1266          *   a) For specific user data
1267          *   b) For VLAN EtherType
1268          *   c) For full TCI match
1269          *   d) Or in case multiple filter criteria are set
1270          *
1271          * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.
1272          */
1273         if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
1274             (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
1275             ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&
1276              rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||
1277             (rule->filter.match_flags & (rule->filter.match_flags - 1)))
1278                 rule->flex = true;
1279         else
1280                 rule->flex = false;
1281 }
1282
1283 /**
1284  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1285  * @adapter: Pointer to adapter
1286  * @rule: Rule under evaluation
1287  *
1288  * The driver doesn't support rules with multiple matches so if more than
1289  * one bit in filter flags is set, @rule is considered invalid.
1290  *
1291  * Also, if there is already another rule with the same filter in a different
1292  * location, @rule is considered invalid.
1293  *
1294  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1295  *
1296  * Return: 0 in case of success, negative errno code otherwise.
1297  */
1298 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1299                                       struct igc_nfc_rule *rule)
1300 {
1301         struct net_device *dev = adapter->netdev;
1302         u8 flags = rule->filter.match_flags;
1303         struct igc_nfc_rule *tmp;
1304
1305         if (!flags) {
1306                 netdev_dbg(dev, "Rule with no match\n");
1307                 return -EINVAL;
1308         }
1309
1310         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1311                 if (!memcmp(&rule->filter, &tmp->filter,
1312                             sizeof(rule->filter)) &&
1313                     tmp->location != rule->location) {
1314                         netdev_dbg(dev, "Rule already exists\n");
1315                         return -EEXIST;
1316                 }
1317         }
1318
1319         return 0;
1320 }
1321
1322 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1323                                     struct ethtool_rxnfc *cmd)
1324 {
1325         struct net_device *netdev = adapter->netdev;
1326         struct ethtool_rx_flow_spec *fsp =
1327                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1328         struct igc_nfc_rule *rule, *old_rule;
1329         int err;
1330
1331         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1332                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1333                 return -EOPNOTSUPP;
1334         }
1335
1336         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1337                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1338                 return -EOPNOTSUPP;
1339         }
1340
1341         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1342                 netdev_dbg(netdev, "Invalid action\n");
1343                 return -EINVAL;
1344         }
1345
1346         /* There are two ways to match the VLAN TCI:
1347          *  1. Match on PCP field and use vlan prio filter for it
1348          *  2. Match on complete TCI field and use flex filter for it
1349          */
1350         if ((fsp->flow_type & FLOW_EXT) &&
1351             fsp->m_ext.vlan_tci &&
1352             fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&
1353             fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {
1354                 netdev_dbg(netdev, "VLAN mask not supported\n");
1355                 return -EOPNOTSUPP;
1356         }
1357
1358         /* VLAN EtherType can only be matched by full mask. */
1359         if ((fsp->flow_type & FLOW_EXT) &&
1360             fsp->m_ext.vlan_etype &&
1361             fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) {
1362                 netdev_dbg(netdev, "VLAN EtherType mask not supported\n");
1363                 return -EOPNOTSUPP;
1364         }
1365
1366         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1367                 netdev_dbg(netdev, "Invalid location\n");
1368                 return -EINVAL;
1369         }
1370
1371         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1372         if (!rule)
1373                 return -ENOMEM;
1374
1375         igc_ethtool_init_nfc_rule(rule, fsp);
1376
1377         mutex_lock(&adapter->nfc_rule_lock);
1378
1379         err = igc_ethtool_check_nfc_rule(adapter, rule);
1380         if (err)
1381                 goto err;
1382
1383         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1384         if (old_rule)
1385                 igc_del_nfc_rule(adapter, old_rule);
1386
1387         err = igc_add_nfc_rule(adapter, rule);
1388         if (err)
1389                 goto err;
1390
1391         mutex_unlock(&adapter->nfc_rule_lock);
1392         return 0;
1393
1394 err:
1395         mutex_unlock(&adapter->nfc_rule_lock);
1396         kfree(rule);
1397         return err;
1398 }
1399
1400 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1401                                     struct ethtool_rxnfc *cmd)
1402 {
1403         struct ethtool_rx_flow_spec *fsp =
1404                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1405         struct igc_nfc_rule *rule;
1406
1407         mutex_lock(&adapter->nfc_rule_lock);
1408
1409         rule = igc_get_nfc_rule(adapter, fsp->location);
1410         if (!rule) {
1411                 mutex_unlock(&adapter->nfc_rule_lock);
1412                 return -EINVAL;
1413         }
1414
1415         igc_del_nfc_rule(adapter, rule);
1416
1417         mutex_unlock(&adapter->nfc_rule_lock);
1418         return 0;
1419 }
1420
1421 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1422                                  struct ethtool_rxnfc *cmd)
1423 {
1424         struct igc_adapter *adapter = netdev_priv(dev);
1425
1426         switch (cmd->cmd) {
1427         case ETHTOOL_SRXFH:
1428                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1429         case ETHTOOL_SRXCLSRLINS:
1430                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1431         case ETHTOOL_SRXCLSRLDEL:
1432                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1433         default:
1434                 return -EOPNOTSUPP;
1435         }
1436 }
1437
1438 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1439 {
1440         struct igc_hw *hw = &adapter->hw;
1441         u32 reg = IGC_RETA(0);
1442         u32 shift = 0;
1443         int i = 0;
1444
1445         while (i < IGC_RETA_SIZE) {
1446                 u32 val = 0;
1447                 int j;
1448
1449                 for (j = 3; j >= 0; j--) {
1450                         val <<= 8;
1451                         val |= adapter->rss_indir_tbl[i + j];
1452                 }
1453
1454                 wr32(reg, val << shift);
1455                 reg += 4;
1456                 i += 4;
1457         }
1458 }
1459
1460 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1461 {
1462         return IGC_RETA_SIZE;
1463 }
1464
1465 static int igc_ethtool_get_rxfh(struct net_device *netdev,
1466                                 struct ethtool_rxfh_param *rxfh)
1467 {
1468         struct igc_adapter *adapter = netdev_priv(netdev);
1469         int i;
1470
1471         rxfh->hfunc = ETH_RSS_HASH_TOP;
1472         if (!rxfh->indir)
1473                 return 0;
1474         for (i = 0; i < IGC_RETA_SIZE; i++)
1475                 rxfh->indir[i] = adapter->rss_indir_tbl[i];
1476
1477         return 0;
1478 }
1479
1480 static int igc_ethtool_set_rxfh(struct net_device *netdev,
1481                                 struct ethtool_rxfh_param *rxfh,
1482                                 struct netlink_ext_ack *extack)
1483 {
1484         struct igc_adapter *adapter = netdev_priv(netdev);
1485         u32 num_queues;
1486         int i;
1487
1488         /* We do not allow change in unsupported parameters */
1489         if (rxfh->key ||
1490             (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1491              rxfh->hfunc != ETH_RSS_HASH_TOP))
1492                 return -EOPNOTSUPP;
1493         if (!rxfh->indir)
1494                 return 0;
1495
1496         num_queues = adapter->rss_queues;
1497
1498         /* Verify user input. */
1499         for (i = 0; i < IGC_RETA_SIZE; i++)
1500                 if (rxfh->indir[i] >= num_queues)
1501                         return -EINVAL;
1502
1503         for (i = 0; i < IGC_RETA_SIZE; i++)
1504                 adapter->rss_indir_tbl[i] = rxfh->indir[i];
1505
1506         igc_write_rss_indir_tbl(adapter);
1507
1508         return 0;
1509 }
1510
1511 static void igc_ethtool_get_channels(struct net_device *netdev,
1512                                      struct ethtool_channels *ch)
1513 {
1514         struct igc_adapter *adapter = netdev_priv(netdev);
1515
1516         /* Report maximum channels */
1517         ch->max_combined = igc_get_max_rss_queues(adapter);
1518
1519         /* Report info for other vector */
1520         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1521                 ch->max_other = NON_Q_VECTORS;
1522                 ch->other_count = NON_Q_VECTORS;
1523         }
1524
1525         ch->combined_count = adapter->rss_queues;
1526 }
1527
1528 static int igc_ethtool_set_channels(struct net_device *netdev,
1529                                     struct ethtool_channels *ch)
1530 {
1531         struct igc_adapter *adapter = netdev_priv(netdev);
1532         unsigned int count = ch->combined_count;
1533         unsigned int max_combined = 0;
1534
1535         /* Verify they are not requesting separate vectors */
1536         if (!count || ch->rx_count || ch->tx_count)
1537                 return -EINVAL;
1538
1539         /* Verify other_count is valid and has not been changed */
1540         if (ch->other_count != NON_Q_VECTORS)
1541                 return -EINVAL;
1542
1543         /* Do not allow channel reconfiguration when mqprio is enabled */
1544         if (adapter->strict_priority_enable)
1545                 return -EINVAL;
1546
1547         /* Verify the number of channels doesn't exceed hw limits */
1548         max_combined = igc_get_max_rss_queues(adapter);
1549         if (count > max_combined)
1550                 return -EINVAL;
1551
1552         if (count != adapter->rss_queues) {
1553                 adapter->rss_queues = count;
1554                 igc_set_flag_queue_pairs(adapter, max_combined);
1555
1556                 /* Hardware has to reinitialize queues and interrupts to
1557                  * match the new configuration.
1558                  */
1559                 return igc_reinit_queues(adapter);
1560         }
1561
1562         return 0;
1563 }
1564
1565 static int igc_ethtool_get_ts_info(struct net_device *dev,
1566                                    struct kernel_ethtool_ts_info *info)
1567 {
1568         struct igc_adapter *adapter = netdev_priv(dev);
1569
1570         if (adapter->ptp_clock)
1571                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1572
1573         switch (adapter->hw.mac.type) {
1574         case igc_i225:
1575                 info->so_timestamping =
1576                         SOF_TIMESTAMPING_TX_SOFTWARE |
1577                         SOF_TIMESTAMPING_TX_HARDWARE |
1578                         SOF_TIMESTAMPING_RX_HARDWARE |
1579                         SOF_TIMESTAMPING_RAW_HARDWARE;
1580
1581                 info->tx_types =
1582                         BIT(HWTSTAMP_TX_OFF) |
1583                         BIT(HWTSTAMP_TX_ON);
1584
1585                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1586                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1587
1588                 return 0;
1589         default:
1590                 return -EOPNOTSUPP;
1591         }
1592 }
1593
1594 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1595 {
1596         struct igc_adapter *adapter = netdev_priv(netdev);
1597         u32 priv_flags = 0;
1598
1599         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1600                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1601
1602         return priv_flags;
1603 }
1604
1605 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1606 {
1607         struct igc_adapter *adapter = netdev_priv(netdev);
1608         unsigned int flags = adapter->flags;
1609
1610         flags &= ~IGC_FLAG_RX_LEGACY;
1611         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1612                 flags |= IGC_FLAG_RX_LEGACY;
1613
1614         if (flags != adapter->flags) {
1615                 adapter->flags = flags;
1616
1617                 /* reset interface to repopulate queues */
1618                 if (netif_running(netdev))
1619                         igc_reinit_locked(adapter);
1620         }
1621
1622         return 0;
1623 }
1624
1625 static int igc_ethtool_get_eee(struct net_device *netdev,
1626                                struct ethtool_keee *edata)
1627 {
1628         struct igc_adapter *adapter = netdev_priv(netdev);
1629         struct igc_hw *hw = &adapter->hw;
1630         struct igc_phy_info *phy = &hw->phy;
1631         u16 eee_advert, eee_lp_advert;
1632         u32 eeer, ret_val;
1633
1634         /* EEE supported */
1635         linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1636                          edata->supported);
1637         linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1638                          edata->supported);
1639         linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1640                          edata->supported);
1641
1642         /* EEE Advertisement 1 - reg 7.60 */
1643         ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1644                                     MMD_DEVADDR_SHIFT) |
1645                                     IGC_ANEG_EEE_AB1,
1646                                     &eee_advert);
1647         if (ret_val) {
1648                 netdev_err(adapter->netdev,
1649                            "Failed to read IEEE 7.60 register\n");
1650                 return -EINVAL;
1651         }
1652
1653         if (eee_advert & IGC_EEE_1000BT_MASK)
1654                 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1655                                  edata->advertised);
1656
1657         if (eee_advert & IGC_EEE_100BT_MASK)
1658                 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1659                                  edata->advertised);
1660
1661         /* EEE Advertisement 2 - reg 7.62 */
1662         ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1663                                     MMD_DEVADDR_SHIFT) |
1664                                     IGC_ANEG_EEE_AB2,
1665                                     &eee_advert);
1666         if (ret_val) {
1667                 netdev_err(adapter->netdev,
1668                            "Failed to read IEEE 7.62 register\n");
1669                 return -EINVAL;
1670         }
1671
1672         if (eee_advert & IGC_EEE_2500BT_MASK)
1673                 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1674                                  edata->advertised);
1675
1676         /* EEE Link-Partner Ability 1 - reg 7.61 */
1677         ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1678                                     MMD_DEVADDR_SHIFT) |
1679                                     IGC_ANEG_EEE_LP_AB1,
1680                                     &eee_lp_advert);
1681         if (ret_val) {
1682                 netdev_err(adapter->netdev,
1683                            "Failed to read IEEE 7.61 register\n");
1684                 return -EINVAL;
1685         }
1686
1687         if (eee_lp_advert & IGC_LP_EEE_1000BT_MASK)
1688                 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1689                                  edata->lp_advertised);
1690
1691         if (eee_lp_advert & IGC_LP_EEE_100BT_MASK)
1692                 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1693                                  edata->lp_advertised);
1694
1695         /* EEE Link-Partner Ability 2 - reg 7.63 */
1696         ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1697                                     MMD_DEVADDR_SHIFT) |
1698                                     IGC_ANEG_EEE_LP_AB2,
1699                                     &eee_lp_advert);
1700         if (ret_val) {
1701                 netdev_err(adapter->netdev,
1702                            "Failed to read IEEE 7.63 register\n");
1703                 return -EINVAL;
1704         }
1705
1706         if (eee_lp_advert & IGC_LP_EEE_2500BT_MASK)
1707                 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1708                                  edata->lp_advertised);
1709
1710         eeer = rd32(IGC_EEER);
1711
1712         /* EEE status on negotiated link */
1713         if (eeer & IGC_EEER_EEE_NEG)
1714                 edata->eee_active = true;
1715
1716         if (eeer & IGC_EEER_TX_LPI_EN)
1717                 edata->tx_lpi_enabled = true;
1718
1719         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1720
1721         /* Report correct negotiated EEE status for devices that
1722          * wrongly report EEE at half-duplex
1723          */
1724         if (adapter->link_duplex == HALF_DUPLEX) {
1725                 edata->eee_enabled = false;
1726                 edata->eee_active = false;
1727                 edata->tx_lpi_enabled = false;
1728                 linkmode_zero(edata->advertised);
1729         }
1730
1731         return 0;
1732 }
1733
1734 static int igc_ethtool_set_eee(struct net_device *netdev,
1735                                struct ethtool_keee *edata)
1736 {
1737         struct igc_adapter *adapter = netdev_priv(netdev);
1738         struct igc_hw *hw = &adapter->hw;
1739         struct ethtool_keee eee_curr;
1740         s32 ret_val;
1741
1742         memset(&eee_curr, 0, sizeof(struct ethtool_keee));
1743
1744         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1745         if (ret_val) {
1746                 netdev_err(netdev,
1747                            "Problem setting EEE advertisement options\n");
1748                 return -EINVAL;
1749         }
1750
1751         if (eee_curr.eee_enabled) {
1752                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1753                         netdev_err(netdev,
1754                                    "Setting EEE tx-lpi is not supported\n");
1755                         return -EINVAL;
1756                 }
1757
1758                 /* Tx LPI timer is not implemented currently */
1759                 if (edata->tx_lpi_timer) {
1760                         netdev_err(netdev,
1761                                    "Setting EEE Tx LPI timer is not supported\n");
1762                         return -EINVAL;
1763                 }
1764         } else if (!edata->eee_enabled) {
1765                 netdev_err(netdev,
1766                            "Setting EEE options are not supported with EEE disabled\n");
1767                 return -EINVAL;
1768         }
1769
1770         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1771                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1772                 adapter->flags |= IGC_FLAG_EEE;
1773
1774                 /* reset link */
1775                 if (netif_running(netdev))
1776                         igc_reinit_locked(adapter);
1777                 else
1778                         igc_reset(adapter);
1779         }
1780
1781         return 0;
1782 }
1783
1784 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1785                                           struct ethtool_link_ksettings *cmd)
1786 {
1787         struct igc_adapter *adapter = netdev_priv(netdev);
1788         struct igc_hw *hw = &adapter->hw;
1789         u32 status;
1790         u32 speed;
1791
1792         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1793         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1794
1795         /* supported link modes */
1796         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1797         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1798         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1799         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1800         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1801         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1802
1803         /* twisted pair */
1804         cmd->base.port = PORT_TP;
1805         cmd->base.phy_address = hw->phy.addr;
1806         ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
1807         ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
1808
1809         /* advertising link modes */
1810         if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1811                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1812         if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1813                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1814         if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1815                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1816         if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1817                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1818         if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1819                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1820         if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1821                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1822
1823         /* set autoneg settings */
1824         ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1825         ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
1826
1827         /* Set pause flow control settings */
1828         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1829
1830         switch (hw->fc.requested_mode) {
1831         case igc_fc_full:
1832                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1833                 break;
1834         case igc_fc_rx_pause:
1835                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1836                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1837                                                      Asym_Pause);
1838                 break;
1839         case igc_fc_tx_pause:
1840                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1841                                                      Asym_Pause);
1842                 break;
1843         default:
1844                 break;
1845         }
1846
1847         status = pm_runtime_suspended(&adapter->pdev->dev) ?
1848                  0 : rd32(IGC_STATUS);
1849
1850         if (status & IGC_STATUS_LU) {
1851                 if (status & IGC_STATUS_SPEED_1000) {
1852                         /* For I225, STATUS will indicate 1G speed in both
1853                          * 1 Gbps and 2.5 Gbps link modes.
1854                          * An additional bit is used
1855                          * to differentiate between 1 Gbps and 2.5 Gbps.
1856                          */
1857                         if (hw->mac.type == igc_i225 &&
1858                             (status & IGC_STATUS_SPEED_2500)) {
1859                                 speed = SPEED_2500;
1860                         } else {
1861                                 speed = SPEED_1000;
1862                         }
1863                 } else if (status & IGC_STATUS_SPEED_100) {
1864                         speed = SPEED_100;
1865                 } else {
1866                         speed = SPEED_10;
1867                 }
1868                 if ((status & IGC_STATUS_FD) ||
1869                     hw->phy.media_type != igc_media_type_copper)
1870                         cmd->base.duplex = DUPLEX_FULL;
1871                 else
1872                         cmd->base.duplex = DUPLEX_HALF;
1873         } else {
1874                 speed = SPEED_UNKNOWN;
1875                 cmd->base.duplex = DUPLEX_UNKNOWN;
1876         }
1877         cmd->base.speed = speed;
1878         cmd->base.autoneg = AUTONEG_ENABLE;
1879
1880         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1881         if (hw->phy.media_type == igc_media_type_copper)
1882                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1883                                                       ETH_TP_MDI;
1884         else
1885                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1886
1887         if (hw->phy.mdix == AUTO_ALL_MODES)
1888                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1889         else
1890                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1891
1892         return 0;
1893 }
1894
1895 static int
1896 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1897                                const struct ethtool_link_ksettings *cmd)
1898 {
1899         struct igc_adapter *adapter = netdev_priv(netdev);
1900         struct net_device *dev = adapter->netdev;
1901         struct igc_hw *hw = &adapter->hw;
1902         u16 advertised = 0;
1903
1904         /* When adapter in resetting mode, autoneg/speed/duplex
1905          * cannot be changed
1906          */
1907         if (igc_check_reset_block(hw)) {
1908                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1909                 return -EINVAL;
1910         }
1911
1912         /* MDI setting is only allowed when autoneg enabled because
1913          * some hardware doesn't allow MDI setting when speed or
1914          * duplex is forced.
1915          */
1916         if (cmd->base.eth_tp_mdix_ctrl) {
1917                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1918                     cmd->base.autoneg != AUTONEG_ENABLE) {
1919                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1920                         return -EINVAL;
1921                 }
1922         }
1923
1924         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1925                 usleep_range(1000, 2000);
1926
1927         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1928                                                   2500baseT_Full))
1929                 advertised |= ADVERTISE_2500_FULL;
1930
1931         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1932                                                   1000baseT_Full))
1933                 advertised |= ADVERTISE_1000_FULL;
1934
1935         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1936                                                   100baseT_Full))
1937                 advertised |= ADVERTISE_100_FULL;
1938
1939         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1940                                                   100baseT_Half))
1941                 advertised |= ADVERTISE_100_HALF;
1942
1943         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1944                                                   10baseT_Full))
1945                 advertised |= ADVERTISE_10_FULL;
1946
1947         if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1948                                                   10baseT_Half))
1949                 advertised |= ADVERTISE_10_HALF;
1950
1951         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1952                 hw->phy.autoneg_advertised = advertised;
1953                 if (adapter->fc_autoneg)
1954                         hw->fc.requested_mode = igc_fc_default;
1955         } else {
1956                 netdev_info(dev, "Force mode currently not supported\n");
1957         }
1958
1959         /* MDI-X => 2; MDI => 1; Auto => 3 */
1960         if (cmd->base.eth_tp_mdix_ctrl) {
1961                 /* fix up the value for auto (3 => 0) as zero is mapped
1962                  * internally to auto
1963                  */
1964                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1965                         hw->phy.mdix = AUTO_ALL_MODES;
1966                 else
1967                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1968         }
1969
1970         /* reset the link */
1971         if (netif_running(adapter->netdev)) {
1972                 igc_down(adapter);
1973                 igc_up(adapter);
1974         } else {
1975                 igc_reset(adapter);
1976         }
1977
1978         clear_bit(__IGC_RESETTING, &adapter->state);
1979
1980         return 0;
1981 }
1982
1983 static void igc_ethtool_diag_test(struct net_device *netdev,
1984                                   struct ethtool_test *eth_test, u64 *data)
1985 {
1986         struct igc_adapter *adapter = netdev_priv(netdev);
1987         bool if_running = netif_running(netdev);
1988
1989         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1990                 netdev_info(adapter->netdev, "Offline testing starting");
1991                 set_bit(__IGC_TESTING, &adapter->state);
1992
1993                 /* Link test performed before hardware reset so autoneg doesn't
1994                  * interfere with test result
1995                  */
1996                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1997                         eth_test->flags |= ETH_TEST_FL_FAILED;
1998
1999                 if (if_running)
2000                         igc_close(netdev);
2001                 else
2002                         igc_reset(adapter);
2003
2004                 netdev_info(adapter->netdev, "Register testing starting");
2005                 if (!igc_reg_test(adapter, &data[TEST_REG]))
2006                         eth_test->flags |= ETH_TEST_FL_FAILED;
2007
2008                 igc_reset(adapter);
2009
2010                 netdev_info(adapter->netdev, "EEPROM testing starting");
2011                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
2012                         eth_test->flags |= ETH_TEST_FL_FAILED;
2013
2014                 igc_reset(adapter);
2015
2016                 /* loopback and interrupt tests
2017                  * will be implemented in the future
2018                  */
2019                 data[TEST_LOOP] = 0;
2020                 data[TEST_IRQ] = 0;
2021
2022                 clear_bit(__IGC_TESTING, &adapter->state);
2023                 if (if_running)
2024                         igc_open(netdev);
2025         } else {
2026                 netdev_info(adapter->netdev, "Online testing starting");
2027
2028                 /* register, eeprom, intr and loopback tests not run online */
2029                 data[TEST_REG] = 0;
2030                 data[TEST_EEP] = 0;
2031                 data[TEST_IRQ] = 0;
2032                 data[TEST_LOOP] = 0;
2033
2034                 if (!igc_link_test(adapter, &data[TEST_LINK]))
2035                         eth_test->flags |= ETH_TEST_FL_FAILED;
2036         }
2037
2038         msleep_interruptible(4 * 1000);
2039 }
2040
2041 static const struct ethtool_ops igc_ethtool_ops = {
2042         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
2043         .get_drvinfo            = igc_ethtool_get_drvinfo,
2044         .get_regs_len           = igc_ethtool_get_regs_len,
2045         .get_regs               = igc_ethtool_get_regs,
2046         .get_wol                = igc_ethtool_get_wol,
2047         .set_wol                = igc_ethtool_set_wol,
2048         .get_msglevel           = igc_ethtool_get_msglevel,
2049         .set_msglevel           = igc_ethtool_set_msglevel,
2050         .nway_reset             = igc_ethtool_nway_reset,
2051         .get_link               = igc_ethtool_get_link,
2052         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
2053         .get_eeprom             = igc_ethtool_get_eeprom,
2054         .set_eeprom             = igc_ethtool_set_eeprom,
2055         .get_ringparam          = igc_ethtool_get_ringparam,
2056         .set_ringparam          = igc_ethtool_set_ringparam,
2057         .get_pauseparam         = igc_ethtool_get_pauseparam,
2058         .set_pauseparam         = igc_ethtool_set_pauseparam,
2059         .get_strings            = igc_ethtool_get_strings,
2060         .get_sset_count         = igc_ethtool_get_sset_count,
2061         .get_ethtool_stats      = igc_ethtool_get_stats,
2062         .get_coalesce           = igc_ethtool_get_coalesce,
2063         .set_coalesce           = igc_ethtool_set_coalesce,
2064         .get_rxnfc              = igc_ethtool_get_rxnfc,
2065         .set_rxnfc              = igc_ethtool_set_rxnfc,
2066         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
2067         .get_rxfh               = igc_ethtool_get_rxfh,
2068         .set_rxfh               = igc_ethtool_set_rxfh,
2069         .get_ts_info            = igc_ethtool_get_ts_info,
2070         .get_channels           = igc_ethtool_get_channels,
2071         .set_channels           = igc_ethtool_set_channels,
2072         .get_priv_flags         = igc_ethtool_get_priv_flags,
2073         .set_priv_flags         = igc_ethtool_set_priv_flags,
2074         .get_eee                = igc_ethtool_get_eee,
2075         .set_eee                = igc_ethtool_set_eee,
2076         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
2077         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
2078         .self_test              = igc_ethtool_diag_test,
2079 };
2080
2081 void igc_ethtool_set_ops(struct net_device *netdev)
2082 {
2083         netdev->ethtool_ops = &igc_ethtool_ops;
2084 }