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 };
  69
  70 #define IGC_NETDEV_STAT(_net_stat) { \
  71         .stat_string = __stringify(_net_stat), \
  72         .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
  73         .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
  74 }
  75
  76 static const struct igc_stats igc_gstrings_net_stats[] = {
  77         IGC_NETDEV_STAT(rx_errors),
  78         IGC_NETDEV_STAT(tx_errors),
  79         IGC_NETDEV_STAT(tx_dropped),
  80         IGC_NETDEV_STAT(rx_length_errors),
  81         IGC_NETDEV_STAT(rx_over_errors),
  82         IGC_NETDEV_STAT(rx_frame_errors),
  83         IGC_NETDEV_STAT(rx_fifo_errors),
  84         IGC_NETDEV_STAT(tx_fifo_errors),
  85         IGC_NETDEV_STAT(tx_heartbeat_errors)
  86 };
  87
  88 enum igc_diagnostics_results {
  89         TEST_REG = 0,
  90         TEST_EEP,
  91         TEST_IRQ,
  92         TEST_LOOP,
  93         TEST_LINK
  94 };
  95
  96 static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
  97         [TEST_REG]  = "Register test  (offline)",
  98         [TEST_EEP]  = "Eeprom test    (offline)",
  99         [TEST_IRQ]  = "Interrupt test (offline)",
 100         [TEST_LOOP] = "Loopback test  (offline)",
 101         [TEST_LINK] = "Link test   (on/offline)"
 102 };
 103
 104 #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
 105
 106 #define IGC_GLOBAL_STATS_LEN    \
 107         (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
 108 #define IGC_NETDEV_STATS_LEN    \
 109         (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
 110 #define IGC_RX_QUEUE_STATS_LEN \
 111         (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
 112 #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
 113 #define IGC_QUEUE_STATS_LEN \
 114         ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
 115           IGC_RX_QUEUE_STATS_LEN) + \
 116          (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
 117           IGC_TX_QUEUE_STATS_LEN))
 118 #define IGC_STATS_LEN \
 119         (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
 120
 121 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
 122 #define IGC_PRIV_FLAGS_LEGACY_RX        BIT(0)
 123         "legacy-rx",
 124 };
 125
 126 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
 127
 128 static void igc_ethtool_get_drvinfo(struct net_device *netdev,
 129                                     struct ethtool_drvinfo *drvinfo)
 130 {
 131         struct igc_adapter *adapter = netdev_priv(netdev);
 132
 133         strlcpy(drvinfo->driver,  igc_driver_name, sizeof(drvinfo->driver));
 134
 135         /* add fw_version here */
 136         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 137                 sizeof(drvinfo->bus_info));
 138
 139         drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
 140 }
 141
 142 static int igc_ethtool_get_regs_len(struct net_device *netdev)
 143 {
 144         return IGC_REGS_LEN * sizeof(u32);
 145 }
 146
 147 static void igc_ethtool_get_regs(struct net_device *netdev,
 148                                  struct ethtool_regs *regs, void *p)
 149 {
 150         struct igc_adapter *adapter = netdev_priv(netdev);
 151         struct igc_hw *hw = &adapter->hw;
 152         u32 *regs_buff = p;
 153         u8 i;
 154
 155         memset(p, 0, IGC_REGS_LEN * sizeof(u32));
 156
 157         regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
 158
 159         /* General Registers */
 160         regs_buff[0] = rd32(IGC_CTRL);
 161         regs_buff[1] = rd32(IGC_STATUS);
 162         regs_buff[2] = rd32(IGC_CTRL_EXT);
 163         regs_buff[3] = rd32(IGC_MDIC);
 164         regs_buff[4] = rd32(IGC_CONNSW);
 165
 166         /* NVM Register */
 167         regs_buff[5] = rd32(IGC_EECD);
 168
 169         /* Interrupt */
 170         /* Reading EICS for EICR because they read the
 171          * same but EICS does not clear on read
 172          */
 173         regs_buff[6] = rd32(IGC_EICS);
 174         regs_buff[7] = rd32(IGC_EICS);
 175         regs_buff[8] = rd32(IGC_EIMS);
 176         regs_buff[9] = rd32(IGC_EIMC);
 177         regs_buff[10] = rd32(IGC_EIAC);
 178         regs_buff[11] = rd32(IGC_EIAM);
 179         /* Reading ICS for ICR because they read the
 180          * same but ICS does not clear on read
 181          */
 182         regs_buff[12] = rd32(IGC_ICS);
 183         regs_buff[13] = rd32(IGC_ICS);
 184         regs_buff[14] = rd32(IGC_IMS);
 185         regs_buff[15] = rd32(IGC_IMC);
 186         regs_buff[16] = rd32(IGC_IAC);
 187         regs_buff[17] = rd32(IGC_IAM);
 188
 189         /* Flow Control */
 190         regs_buff[18] = rd32(IGC_FCAL);
 191         regs_buff[19] = rd32(IGC_FCAH);
 192         regs_buff[20] = rd32(IGC_FCTTV);
 193         regs_buff[21] = rd32(IGC_FCRTL);
 194         regs_buff[22] = rd32(IGC_FCRTH);
 195         regs_buff[23] = rd32(IGC_FCRTV);
 196
 197         /* Receive */
 198         regs_buff[24] = rd32(IGC_RCTL);
 199         regs_buff[25] = rd32(IGC_RXCSUM);
 200         regs_buff[26] = rd32(IGC_RLPML);
 201         regs_buff[27] = rd32(IGC_RFCTL);
 202
 203         /* Transmit */
 204         regs_buff[28] = rd32(IGC_TCTL);
 205         regs_buff[29] = rd32(IGC_TIPG);
 206
 207         /* Wake Up */
 208
 209         /* MAC */
 210
 211         /* Statistics */
 212         regs_buff[30] = adapter->stats.crcerrs;
 213         regs_buff[31] = adapter->stats.algnerrc;
 214         regs_buff[32] = adapter->stats.symerrs;
 215         regs_buff[33] = adapter->stats.rxerrc;
 216         regs_buff[34] = adapter->stats.mpc;
 217         regs_buff[35] = adapter->stats.scc;
 218         regs_buff[36] = adapter->stats.ecol;
 219         regs_buff[37] = adapter->stats.mcc;
 220         regs_buff[38] = adapter->stats.latecol;
 221         regs_buff[39] = adapter->stats.colc;
 222         regs_buff[40] = adapter->stats.dc;
 223         regs_buff[41] = adapter->stats.tncrs;
 224         regs_buff[42] = adapter->stats.sec;
 225         regs_buff[43] = adapter->stats.htdpmc;
 226         regs_buff[44] = adapter->stats.rlec;
 227         regs_buff[45] = adapter->stats.xonrxc;
 228         regs_buff[46] = adapter->stats.xontxc;
 229         regs_buff[47] = adapter->stats.xoffrxc;
 230         regs_buff[48] = adapter->stats.xofftxc;
 231         regs_buff[49] = adapter->stats.fcruc;
 232         regs_buff[50] = adapter->stats.prc64;
 233         regs_buff[51] = adapter->stats.prc127;
 234         regs_buff[52] = adapter->stats.prc255;
 235         regs_buff[53] = adapter->stats.prc511;
 236         regs_buff[54] = adapter->stats.prc1023;
 237         regs_buff[55] = adapter->stats.prc1522;
 238         regs_buff[56] = adapter->stats.gprc;
 239         regs_buff[57] = adapter->stats.bprc;
 240         regs_buff[58] = adapter->stats.mprc;
 241         regs_buff[59] = adapter->stats.gptc;
 242         regs_buff[60] = adapter->stats.gorc;
 243         regs_buff[61] = adapter->stats.gotc;
 244         regs_buff[62] = adapter->stats.rnbc;
 245         regs_buff[63] = adapter->stats.ruc;
 246         regs_buff[64] = adapter->stats.rfc;
 247         regs_buff[65] = adapter->stats.roc;
 248         regs_buff[66] = adapter->stats.rjc;
 249         regs_buff[67] = adapter->stats.mgprc;
 250         regs_buff[68] = adapter->stats.mgpdc;
 251         regs_buff[69] = adapter->stats.mgptc;
 252         regs_buff[70] = adapter->stats.tor;
 253         regs_buff[71] = adapter->stats.tot;
 254         regs_buff[72] = adapter->stats.tpr;
 255         regs_buff[73] = adapter->stats.tpt;
 256         regs_buff[74] = adapter->stats.ptc64;
 257         regs_buff[75] = adapter->stats.ptc127;
 258         regs_buff[76] = adapter->stats.ptc255;
 259         regs_buff[77] = adapter->stats.ptc511;
 260         regs_buff[78] = adapter->stats.ptc1023;
 261         regs_buff[79] = adapter->stats.ptc1522;
 262         regs_buff[80] = adapter->stats.mptc;
 263         regs_buff[81] = adapter->stats.bptc;
 264         regs_buff[82] = adapter->stats.tsctc;
 265         regs_buff[83] = adapter->stats.iac;
 266         regs_buff[84] = adapter->stats.rpthc;
 267         regs_buff[85] = adapter->stats.hgptc;
 268         regs_buff[86] = adapter->stats.hgorc;
 269         regs_buff[87] = adapter->stats.hgotc;
 270         regs_buff[88] = adapter->stats.lenerrs;
 271         regs_buff[89] = adapter->stats.scvpc;
 272         regs_buff[90] = adapter->stats.hrmpc;
 273
 274         for (i = 0; i < 4; i++)
 275                 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
 276         for (i = 0; i < 4; i++)
 277                 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
 278         for (i = 0; i < 4; i++)
 279                 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
 280         for (i = 0; i < 4; i++)
 281                 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
 282         for (i = 0; i < 4; i++)
 283                 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
 284         for (i = 0; i < 4; i++)
 285                 regs_buff[111 + i] = rd32(IGC_RDH(i));
 286         for (i = 0; i < 4; i++)
 287                 regs_buff[115 + i] = rd32(IGC_RDT(i));
 288         for (i = 0; i < 4; i++)
 289                 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
 290
 291         for (i = 0; i < 10; i++)
 292                 regs_buff[123 + i] = rd32(IGC_EITR(i));
 293         for (i = 0; i < 16; i++)
 294                 regs_buff[139 + i] = rd32(IGC_RAL(i));
 295         for (i = 0; i < 16; i++)
 296                 regs_buff[145 + i] = rd32(IGC_RAH(i));
 297
 298         for (i = 0; i < 4; i++)
 299                 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
 300         for (i = 0; i < 4; i++)
 301                 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
 302         for (i = 0; i < 4; i++)
 303                 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
 304         for (i = 0; i < 4; i++)
 305                 regs_buff[160 + i] = rd32(IGC_TDH(i));
 306         for (i = 0; i < 4; i++)
 307                 regs_buff[164 + i] = rd32(IGC_TDT(i));
 308         for (i = 0; i < 4; i++)
 309                 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
 310
 311         /* XXX: Due to a bug few lines above, RAL and RAH registers are
 312          * overwritten. To preserve the ABI, we write these registers again in
 313          * regs_buff.
 314          */
 315         for (i = 0; i < 16; i++)
 316                 regs_buff[172 + i] = rd32(IGC_RAL(i));
 317         for (i = 0; i < 16; i++)
 318                 regs_buff[188 + i] = rd32(IGC_RAH(i));
 319
 320         regs_buff[204] = rd32(IGC_VLANPQF);
 321
 322         for (i = 0; i < 8; i++)
 323                 regs_buff[205 + i] = rd32(IGC_ETQF(i));
 324 }
 325
 326 static void igc_ethtool_get_wol(struct net_device *netdev,
 327                                 struct ethtool_wolinfo *wol)
 328 {
 329         struct igc_adapter *adapter = netdev_priv(netdev);
 330
 331         wol->wolopts = 0;
 332
 333         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 334                 return;
 335
 336         wol->supported = WAKE_UCAST | WAKE_MCAST |
 337                          WAKE_BCAST | WAKE_MAGIC |
 338                          WAKE_PHY;
 339
 340         /* apply any specific unsupported masks here */
 341         switch (adapter->hw.device_id) {
 342         default:
 343                 break;
 344         }
 345
 346         if (adapter->wol & IGC_WUFC_EX)
 347                 wol->wolopts |= WAKE_UCAST;
 348         if (adapter->wol & IGC_WUFC_MC)
 349                 wol->wolopts |= WAKE_MCAST;
 350         if (adapter->wol & IGC_WUFC_BC)
 351                 wol->wolopts |= WAKE_BCAST;
 352         if (adapter->wol & IGC_WUFC_MAG)
 353                 wol->wolopts |= WAKE_MAGIC;
 354         if (adapter->wol & IGC_WUFC_LNKC)
 355                 wol->wolopts |= WAKE_PHY;
 356 }
 357
 358 static int igc_ethtool_set_wol(struct net_device *netdev,
 359                                struct ethtool_wolinfo *wol)
 360 {
 361         struct igc_adapter *adapter = netdev_priv(netdev);
 362
 363         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
 364                 return -EOPNOTSUPP;
 365
 366         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 367                 return wol->wolopts ? -EOPNOTSUPP : 0;
 368
 369         /* these settings will always override what we currently have */
 370         adapter->wol = 0;
 371
 372         if (wol->wolopts & WAKE_UCAST)
 373                 adapter->wol |= IGC_WUFC_EX;
 374         if (wol->wolopts & WAKE_MCAST)
 375                 adapter->wol |= IGC_WUFC_MC;
 376         if (wol->wolopts & WAKE_BCAST)
 377                 adapter->wol |= IGC_WUFC_BC;
 378         if (wol->wolopts & WAKE_MAGIC)
 379                 adapter->wol |= IGC_WUFC_MAG;
 380         if (wol->wolopts & WAKE_PHY)
 381                 adapter->wol |= IGC_WUFC_LNKC;
 382         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 383
 384         return 0;
 385 }
 386
 387 static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
 388 {
 389         struct igc_adapter *adapter = netdev_priv(netdev);
 390
 391         return adapter->msg_enable;
 392 }
 393
 394 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
 395 {
 396         struct igc_adapter *adapter = netdev_priv(netdev);
 397
 398         adapter->msg_enable = data;
 399 }
 400
 401 static int igc_ethtool_nway_reset(struct net_device *netdev)
 402 {
 403         struct igc_adapter *adapter = netdev_priv(netdev);
 404
 405         if (netif_running(netdev))
 406                 igc_reinit_locked(adapter);
 407         return 0;
 408 }
 409
 410 static u32 igc_ethtool_get_link(struct net_device *netdev)
 411 {
 412         struct igc_adapter *adapter = netdev_priv(netdev);
 413         struct igc_mac_info *mac = &adapter->hw.mac;
 414
 415         /* If the link is not reported up to netdev, interrupts are disabled,
 416          * and so the physical link state may have changed since we last
 417          * looked. Set get_link_status to make sure that the true link
 418          * state is interrogated, rather than pulling a cached and possibly
 419          * stale link state from the driver.
 420          */
 421         if (!netif_carrier_ok(netdev))
 422                 mac->get_link_status = 1;
 423
 424         return igc_has_link(adapter);
 425 }
 426
 427 static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
 428 {
 429         struct igc_adapter *adapter = netdev_priv(netdev);
 430
 431         return adapter->hw.nvm.word_size * 2;
 432 }
 433
 434 static int igc_ethtool_get_eeprom(struct net_device *netdev,
 435                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 436 {
 437         struct igc_adapter *adapter = netdev_priv(netdev);
 438         struct igc_hw *hw = &adapter->hw;
 439         int first_word, last_word;
 440         u16 *eeprom_buff;
 441         int ret_val = 0;
 442         u16 i;
 443
 444         if (eeprom->len == 0)
 445                 return -EINVAL;
 446
 447         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 448
 449         first_word = eeprom->offset >> 1;
 450         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 451
 452         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 453                                     GFP_KERNEL);
 454         if (!eeprom_buff)
 455                 return -ENOMEM;
 456
 457         if (hw->nvm.type == igc_nvm_eeprom_spi) {
 458                 ret_val = hw->nvm.ops.read(hw, first_word,
 459                                            last_word - first_word + 1,
 460                                            eeprom_buff);
 461         } else {
 462                 for (i = 0; i < last_word - first_word + 1; i++) {
 463                         ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 464                                                    &eeprom_buff[i]);
 465                         if (ret_val)
 466                                 break;
 467                 }
 468         }
 469
 470         /* Device's eeprom is always little-endian, word addressable */
 471         for (i = 0; i < last_word - first_word + 1; i++)
 472                 le16_to_cpus(&eeprom_buff[i]);
 473
 474         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 475                eeprom->len);
 476         kfree(eeprom_buff);
 477
 478         return ret_val;
 479 }
 480
 481 static int igc_ethtool_set_eeprom(struct net_device *netdev,
 482                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 483 {
 484         struct igc_adapter *adapter = netdev_priv(netdev);
 485         struct igc_hw *hw = &adapter->hw;
 486         int max_len, first_word, last_word, ret_val = 0;
 487         u16 *eeprom_buff;
 488         void *ptr;
 489         u16 i;
 490
 491         if (eeprom->len == 0)
 492                 return -EOPNOTSUPP;
 493
 494         if (hw->mac.type >= igc_i225 &&
 495             !igc_get_flash_presence_i225(hw)) {
 496                 return -EOPNOTSUPP;
 497         }
 498
 499         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 500                 return -EFAULT;
 501
 502         max_len = hw->nvm.word_size * 2;
 503
 504         first_word = eeprom->offset >> 1;
 505         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 506         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 507         if (!eeprom_buff)
 508                 return -ENOMEM;
 509
 510         ptr = (void *)eeprom_buff;
 511
 512         if (eeprom->offset & 1) {
 513                 /* need read/modify/write of first changed EEPROM word
 514                  * only the second byte of the word is being modified
 515                  */
 516                 ret_val = hw->nvm.ops.read(hw, first_word, 1,
 517                                             &eeprom_buff[0]);
 518                 ptr++;
 519         }
 520         if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
 521                 /* need read/modify/write of last changed EEPROM word
 522                  * only the first byte of the word is being modified
 523                  */
 524                 ret_val = hw->nvm.ops.read(hw, last_word, 1,
 525                                    &eeprom_buff[last_word - first_word]);
 526         }
 527
 528         /* Device's eeprom is always little-endian, word addressable */
 529         for (i = 0; i < last_word - first_word + 1; i++)
 530                 le16_to_cpus(&eeprom_buff[i]);
 531
 532         memcpy(ptr, bytes, eeprom->len);
 533
 534         for (i = 0; i < last_word - first_word + 1; i++)
 535                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 536
 537         ret_val = hw->nvm.ops.write(hw, first_word,
 538                                     last_word - first_word + 1, eeprom_buff);
 539
 540         /* Update the checksum if nvm write succeeded */
 541         if (ret_val == 0)
 542                 hw->nvm.ops.update(hw);
 543
 544         /* check if need: igc_set_fw_version(adapter); */
 545         kfree(eeprom_buff);
 546         return ret_val;
 547 }
 548
 549 static void igc_ethtool_get_ringparam(struct net_device *netdev,
 550                                       struct ethtool_ringparam *ring)
 551 {
 552         struct igc_adapter *adapter = netdev_priv(netdev);
 553
 554         ring->rx_max_pending = IGC_MAX_RXD;
 555         ring->tx_max_pending = IGC_MAX_TXD;
 556         ring->rx_pending = adapter->rx_ring_count;
 557         ring->tx_pending = adapter->tx_ring_count;
 558 }
 559
 560 static int igc_ethtool_set_ringparam(struct net_device *netdev,
 561                                      struct ethtool_ringparam *ring)
 562 {
 563         struct igc_adapter *adapter = netdev_priv(netdev);
 564         struct igc_ring *temp_ring;
 565         u16 new_rx_count, new_tx_count;
 566         int i, err = 0;
 567
 568         if (ring->rx_mini_pending || ring->rx_jumbo_pending)
 569                 return -EINVAL;
 570
 571         new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
 572         new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
 573         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 574
 575         new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
 576         new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
 577         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 578
 579         if (new_tx_count == adapter->tx_ring_count &&
 580             new_rx_count == adapter->rx_ring_count) {
 581                 /* nothing to do */
 582                 return 0;
 583         }
 584
 585         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 586                 usleep_range(1000, 2000);
 587
 588         if (!netif_running(adapter->netdev)) {
 589                 for (i = 0; i < adapter->num_tx_queues; i++)
 590                         adapter->tx_ring[i]->count = new_tx_count;
 591                 for (i = 0; i < adapter->num_rx_queues; i++)
 592                         adapter->rx_ring[i]->count = new_rx_count;
 593                 adapter->tx_ring_count = new_tx_count;
 594                 adapter->rx_ring_count = new_rx_count;
 595                 goto clear_reset;
 596         }
 597
 598         if (adapter->num_tx_queues > adapter->num_rx_queues)
 599                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 600                                                adapter->num_tx_queues));
 601         else
 602                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 603                                                adapter->num_rx_queues));
 604
 605         if (!temp_ring) {
 606                 err = -ENOMEM;
 607                 goto clear_reset;
 608         }
 609
 610         igc_down(adapter);
 611
 612         /* We can't just free everything and then setup again,
 613          * because the ISRs in MSI-X mode get passed pointers
 614          * to the Tx and Rx ring structs.
 615          */
 616         if (new_tx_count != adapter->tx_ring_count) {
 617                 for (i = 0; i < adapter->num_tx_queues; i++) {
 618                         memcpy(&temp_ring[i], adapter->tx_ring[i],
 619                                sizeof(struct igc_ring));
 620
 621                         temp_ring[i].count = new_tx_count;
 622                         err = igc_setup_tx_resources(&temp_ring[i]);
 623                         if (err) {
 624                                 while (i) {
 625                                         i--;
 626                                         igc_free_tx_resources(&temp_ring[i]);
 627                                 }
 628                                 goto err_setup;
 629                         }
 630                 }
 631
 632                 for (i = 0; i < adapter->num_tx_queues; i++) {
 633                         igc_free_tx_resources(adapter->tx_ring[i]);
 634
 635                         memcpy(adapter->tx_ring[i], &temp_ring[i],
 636                                sizeof(struct igc_ring));
 637                 }
 638
 639                 adapter->tx_ring_count = new_tx_count;
 640         }
 641
 642         if (new_rx_count != adapter->rx_ring_count) {
 643                 for (i = 0; i < adapter->num_rx_queues; i++) {
 644                         memcpy(&temp_ring[i], adapter->rx_ring[i],
 645                                sizeof(struct igc_ring));
 646
 647                         temp_ring[i].count = new_rx_count;
 648                         err = igc_setup_rx_resources(&temp_ring[i]);
 649                         if (err) {
 650                                 while (i) {
 651                                         i--;
 652                                         igc_free_rx_resources(&temp_ring[i]);
 653                                 }
 654                                 goto err_setup;
 655                         }
 656                 }
 657
 658                 for (i = 0; i < adapter->num_rx_queues; i++) {
 659                         igc_free_rx_resources(adapter->rx_ring[i]);
 660
 661                         memcpy(adapter->rx_ring[i], &temp_ring[i],
 662                                sizeof(struct igc_ring));
 663                 }
 664
 665                 adapter->rx_ring_count = new_rx_count;
 666         }
 667 err_setup:
 668         igc_up(adapter);
 669         vfree(temp_ring);
 670 clear_reset:
 671         clear_bit(__IGC_RESETTING, &adapter->state);
 672         return err;
 673 }
 674
 675 static void igc_ethtool_get_pauseparam(struct net_device *netdev,
 676                                        struct ethtool_pauseparam *pause)
 677 {
 678         struct igc_adapter *adapter = netdev_priv(netdev);
 679         struct igc_hw *hw = &adapter->hw;
 680
 681         pause->autoneg =
 682                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 683
 684         if (hw->fc.current_mode == igc_fc_rx_pause) {
 685                 pause->rx_pause = 1;
 686         } else if (hw->fc.current_mode == igc_fc_tx_pause) {
 687                 pause->tx_pause = 1;
 688         } else if (hw->fc.current_mode == igc_fc_full) {
 689                 pause->rx_pause = 1;
 690                 pause->tx_pause = 1;
 691         }
 692 }
 693
 694 static int igc_ethtool_set_pauseparam(struct net_device *netdev,
 695                                       struct ethtool_pauseparam *pause)
 696 {
 697         struct igc_adapter *adapter = netdev_priv(netdev);
 698         struct igc_hw *hw = &adapter->hw;
 699         int retval = 0;
 700
 701         adapter->fc_autoneg = pause->autoneg;
 702
 703         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 704                 usleep_range(1000, 2000);
 705
 706         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 707                 hw->fc.requested_mode = igc_fc_default;
 708                 if (netif_running(adapter->netdev)) {
 709                         igc_down(adapter);
 710                         igc_up(adapter);
 711                 } else {
 712                         igc_reset(adapter);
 713                 }
 714         } else {
 715                 if (pause->rx_pause && pause->tx_pause)
 716                         hw->fc.requested_mode = igc_fc_full;
 717                 else if (pause->rx_pause && !pause->tx_pause)
 718                         hw->fc.requested_mode = igc_fc_rx_pause;
 719                 else if (!pause->rx_pause && pause->tx_pause)
 720                         hw->fc.requested_mode = igc_fc_tx_pause;
 721                 else if (!pause->rx_pause && !pause->tx_pause)
 722                         hw->fc.requested_mode = igc_fc_none;
 723
 724                 hw->fc.current_mode = hw->fc.requested_mode;
 725
 726                 retval = ((hw->phy.media_type == igc_media_type_copper) ?
 727                           igc_force_mac_fc(hw) : igc_setup_link(hw));
 728         }
 729
 730         clear_bit(__IGC_RESETTING, &adapter->state);
 731         return retval;
 732 }
 733
 734 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
 735                                     u8 *data)
 736 {
 737         struct igc_adapter *adapter = netdev_priv(netdev);
 738         u8 *p = data;
 739         int i;
 740
 741         switch (stringset) {
 742         case ETH_SS_TEST:
 743                 memcpy(data, *igc_gstrings_test,
 744                        IGC_TEST_LEN * ETH_GSTRING_LEN);
 745                 break;
 746         case ETH_SS_STATS:
 747                 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 748                         memcpy(p, igc_gstrings_stats[i].stat_string,
 749                                ETH_GSTRING_LEN);
 750                         p += ETH_GSTRING_LEN;
 751                 }
 752                 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
 753                         memcpy(p, igc_gstrings_net_stats[i].stat_string,
 754                                ETH_GSTRING_LEN);
 755                         p += ETH_GSTRING_LEN;
 756                 }
 757                 for (i = 0; i < adapter->num_tx_queues; i++) {
 758                         sprintf(p, "tx_queue_%u_packets", i);
 759                         p += ETH_GSTRING_LEN;
 760                         sprintf(p, "tx_queue_%u_bytes", i);
 761                         p += ETH_GSTRING_LEN;
 762                         sprintf(p, "tx_queue_%u_restart", i);
 763                         p += ETH_GSTRING_LEN;
 764                 }
 765                 for (i = 0; i < adapter->num_rx_queues; i++) {
 766                         sprintf(p, "rx_queue_%u_packets", i);
 767                         p += ETH_GSTRING_LEN;
 768                         sprintf(p, "rx_queue_%u_bytes", i);
 769                         p += ETH_GSTRING_LEN;
 770                         sprintf(p, "rx_queue_%u_drops", i);
 771                         p += ETH_GSTRING_LEN;
 772                         sprintf(p, "rx_queue_%u_csum_err", i);
 773                         p += ETH_GSTRING_LEN;
 774                         sprintf(p, "rx_queue_%u_alloc_failed", i);
 775                         p += ETH_GSTRING_LEN;
 776                 }
 777                 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
 778                 break;
 779         case ETH_SS_PRIV_FLAGS:
 780                 memcpy(data, igc_priv_flags_strings,
 781                        IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 782                 break;
 783         }
 784 }
 785
 786 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 787 {
 788         switch (sset) {
 789         case ETH_SS_STATS:
 790                 return IGC_STATS_LEN;
 791         case ETH_SS_TEST:
 792                 return IGC_TEST_LEN;
 793         case ETH_SS_PRIV_FLAGS:
 794                 return IGC_PRIV_FLAGS_STR_LEN;
 795         default:
 796                 return -ENOTSUPP;
 797         }
 798 }
 799
 800 static void igc_ethtool_get_stats(struct net_device *netdev,
 801                                   struct ethtool_stats *stats, u64 *data)
 802 {
 803         struct igc_adapter *adapter = netdev_priv(netdev);
 804         struct rtnl_link_stats64 *net_stats = &adapter->stats64;
 805         unsigned int start;
 806         struct igc_ring *ring;
 807         int i, j;
 808         char *p;
 809
 810         spin_lock(&adapter->stats64_lock);
 811         igc_update_stats(adapter);
 812
 813         for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 814                 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
 815                 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
 816                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 817         }
 818         for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
 819                 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
 820                 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
 821                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 822         }
 823         for (j = 0; j < adapter->num_tx_queues; j++) {
 824                 u64     restart2;
 825
 826                 ring = adapter->tx_ring[j];
 827                 do {
 828                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
 829                         data[i]   = ring->tx_stats.packets;
 830                         data[i + 1] = ring->tx_stats.bytes;
 831                         data[i + 2] = ring->tx_stats.restart_queue;
 832                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
 833                 do {
 834                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
 835                         restart2  = ring->tx_stats.restart_queue2;
 836                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
 837                 data[i + 2] += restart2;
 838
 839                 i += IGC_TX_QUEUE_STATS_LEN;
 840         }
 841         for (j = 0; j < adapter->num_rx_queues; j++) {
 842                 ring = adapter->rx_ring[j];
 843                 do {
 844                         start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
 845                         data[i]   = ring->rx_stats.packets;
 846                         data[i + 1] = ring->rx_stats.bytes;
 847                         data[i + 2] = ring->rx_stats.drops;
 848                         data[i + 3] = ring->rx_stats.csum_err;
 849                         data[i + 4] = ring->rx_stats.alloc_failed;
 850                 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
 851                 i += IGC_RX_QUEUE_STATS_LEN;
 852         }
 853         spin_unlock(&adapter->stats64_lock);
 854 }
 855
 856 static int igc_ethtool_get_coalesce(struct net_device *netdev,
 857                                     struct ethtool_coalesce *ec)
 858 {
 859         struct igc_adapter *adapter = netdev_priv(netdev);
 860
 861         if (adapter->rx_itr_setting <= 3)
 862                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
 863         else
 864                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
 865
 866         if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
 867                 if (adapter->tx_itr_setting <= 3)
 868                         ec->tx_coalesce_usecs = adapter->tx_itr_setting;
 869                 else
 870                         ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
 871         }
 872
 873         return 0;
 874 }
 875
 876 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 877                                     struct ethtool_coalesce *ec)
 878 {
 879         struct igc_adapter *adapter = netdev_priv(netdev);
 880         int i;
 881
 882         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 883             (ec->rx_coalesce_usecs > 3 &&
 884              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 885             ec->rx_coalesce_usecs == 2)
 886                 return -EINVAL;
 887
 888         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 889             (ec->tx_coalesce_usecs > 3 &&
 890              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 891             ec->tx_coalesce_usecs == 2)
 892                 return -EINVAL;
 893
 894         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
 895                 return -EINVAL;
 896
 897         /* If ITR is disabled, disable DMAC */
 898         if (ec->rx_coalesce_usecs == 0) {
 899                 if (adapter->flags & IGC_FLAG_DMAC)
 900                         adapter->flags &= ~IGC_FLAG_DMAC;
 901         }
 902
 903         /* convert to rate of irq's per second */
 904         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 905                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 906         else
 907                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 908
 909         /* convert to rate of irq's per second */
 910         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 911                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 912         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 913                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 914         else
 915                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 916
 917         for (i = 0; i < adapter->num_q_vectors; i++) {
 918                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 919
 920                 q_vector->tx.work_limit = adapter->tx_work_limit;
 921                 if (q_vector->rx.ring)
 922                         q_vector->itr_val = adapter->rx_itr_setting;
 923                 else
 924                         q_vector->itr_val = adapter->tx_itr_setting;
 925                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 926                         q_vector->itr_val = IGC_START_ITR;
 927                 q_vector->set_itr = 1;
 928         }
 929
 930         return 0;
 931 }
 932
 933 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 934 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 935                                     struct ethtool_rxnfc *cmd)
 936 {
 937         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 938         struct igc_nfc_rule *rule = NULL;
 939
 940         cmd->data = IGC_MAX_RXNFC_RULES;
 941
 942         mutex_lock(&adapter->nfc_rule_lock);
 943
 944         rule = igc_get_nfc_rule(adapter, fsp->location);
 945         if (!rule)
 946                 goto out;
 947
 948         fsp->flow_type = ETHER_FLOW;
 949         fsp->ring_cookie = rule->action;
 950
 951         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 952                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 953                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 954         }
 955
 956         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 957                 fsp->flow_type |= FLOW_EXT;
 958                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 959                 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
 960         }
 961
 962         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 963                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 964                                 rule->filter.dst_addr);
 965                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 966         }
 967
 968         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
 969                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
 970                                 rule->filter.src_addr);
 971                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
 972         }
 973
 974         mutex_unlock(&adapter->nfc_rule_lock);
 975         return 0;
 976
 977 out:
 978         mutex_unlock(&adapter->nfc_rule_lock);
 979         return -EINVAL;
 980 }
 981
 982 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
 983                                      struct ethtool_rxnfc *cmd,
 984                                      u32 *rule_locs)
 985 {
 986         struct igc_nfc_rule *rule;
 987         int cnt = 0;
 988
 989         cmd->data = IGC_MAX_RXNFC_RULES;
 990
 991         mutex_lock(&adapter->nfc_rule_lock);
 992
 993         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
 994                 if (cnt == cmd->rule_cnt) {
 995                         mutex_unlock(&adapter->nfc_rule_lock);
 996                         return -EMSGSIZE;
 997                 }
 998                 rule_locs[cnt] = rule->location;
 999                 cnt++;
1000         }
1001
1002         mutex_unlock(&adapter->nfc_rule_lock);
1003
1004         cmd->rule_cnt = cnt;
1005
1006         return 0;
1007 }
1008
1009 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1010                                          struct ethtool_rxnfc *cmd)
1011 {
1012         cmd->data = 0;
1013
1014         /* Report default options for RSS on igc */
1015         switch (cmd->flow_type) {
1016         case TCP_V4_FLOW:
1017                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1018                 fallthrough;
1019         case UDP_V4_FLOW:
1020                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1021                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1022                 fallthrough;
1023         case SCTP_V4_FLOW:
1024         case AH_ESP_V4_FLOW:
1025         case AH_V4_FLOW:
1026         case ESP_V4_FLOW:
1027         case IPV4_FLOW:
1028                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1029                 break;
1030         case TCP_V6_FLOW:
1031                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1032                 fallthrough;
1033         case UDP_V6_FLOW:
1034                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1035                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1036                 fallthrough;
1037         case SCTP_V6_FLOW:
1038         case AH_ESP_V6_FLOW:
1039         case AH_V6_FLOW:
1040         case ESP_V6_FLOW:
1041         case IPV6_FLOW:
1042                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1043                 break;
1044         default:
1045                 return -EINVAL;
1046         }
1047
1048         return 0;
1049 }
1050
1051 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1052                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1053 {
1054         struct igc_adapter *adapter = netdev_priv(dev);
1055
1056         switch (cmd->cmd) {
1057         case ETHTOOL_GRXRINGS:
1058                 cmd->data = adapter->num_rx_queues;
1059                 return 0;
1060         case ETHTOOL_GRXCLSRLCNT:
1061                 cmd->rule_cnt = adapter->nfc_rule_count;
1062                 return 0;
1063         case ETHTOOL_GRXCLSRULE:
1064                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1065         case ETHTOOL_GRXCLSRLALL:
1066                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1067         case ETHTOOL_GRXFH:
1068                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1069         default:
1070                 return -EOPNOTSUPP;
1071         }
1072 }
1073
1074 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1075                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1076 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1077                                         struct ethtool_rxnfc *nfc)
1078 {
1079         u32 flags = adapter->flags;
1080
1081         /* RSS does not support anything other than hashing
1082          * to queues on src and dst IPs and ports
1083          */
1084         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1085                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1086                 return -EINVAL;
1087
1088         switch (nfc->flow_type) {
1089         case TCP_V4_FLOW:
1090         case TCP_V6_FLOW:
1091                 if (!(nfc->data & RXH_IP_SRC) ||
1092                     !(nfc->data & RXH_IP_DST) ||
1093                     !(nfc->data & RXH_L4_B_0_1) ||
1094                     !(nfc->data & RXH_L4_B_2_3))
1095                         return -EINVAL;
1096                 break;
1097         case UDP_V4_FLOW:
1098                 if (!(nfc->data & RXH_IP_SRC) ||
1099                     !(nfc->data & RXH_IP_DST))
1100                         return -EINVAL;
1101                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1102                 case 0:
1103                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1104                         break;
1105                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1106                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1107                         break;
1108                 default:
1109                         return -EINVAL;
1110                 }
1111                 break;
1112         case UDP_V6_FLOW:
1113                 if (!(nfc->data & RXH_IP_SRC) ||
1114                     !(nfc->data & RXH_IP_DST))
1115                         return -EINVAL;
1116                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1117                 case 0:
1118                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1119                         break;
1120                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1121                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1122                         break;
1123                 default:
1124                         return -EINVAL;
1125                 }
1126                 break;
1127         case AH_ESP_V4_FLOW:
1128         case AH_V4_FLOW:
1129         case ESP_V4_FLOW:
1130         case SCTP_V4_FLOW:
1131         case AH_ESP_V6_FLOW:
1132         case AH_V6_FLOW:
1133         case ESP_V6_FLOW:
1134         case SCTP_V6_FLOW:
1135                 if (!(nfc->data & RXH_IP_SRC) ||
1136                     !(nfc->data & RXH_IP_DST) ||
1137                     (nfc->data & RXH_L4_B_0_1) ||
1138                     (nfc->data & RXH_L4_B_2_3))
1139                         return -EINVAL;
1140                 break;
1141         default:
1142                 return -EINVAL;
1143         }
1144
1145         /* if we changed something we need to update flags */
1146         if (flags != adapter->flags) {
1147                 struct igc_hw *hw = &adapter->hw;
1148                 u32 mrqc = rd32(IGC_MRQC);
1149
1150                 if ((flags & UDP_RSS_FLAGS) &&
1151                     !(adapter->flags & UDP_RSS_FLAGS))
1152                         netdev_err(adapter->netdev,
1153                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1154
1155                 adapter->flags = flags;
1156
1157                 /* Perform hash on these packet types */
1158                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1159                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1160                         IGC_MRQC_RSS_FIELD_IPV6 |
1161                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1162
1163                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1164                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1165
1166                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1167                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1168
1169                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1170                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1171
1172                 wr32(IGC_MRQC, mrqc);
1173         }
1174
1175         return 0;
1176 }
1177
1178 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1179                                       const struct ethtool_rx_flow_spec *fsp)
1180 {
1181         INIT_LIST_HEAD(&rule->list);
1182
1183         rule->action = fsp->ring_cookie;
1184         rule->location = fsp->location;
1185
1186         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1187                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1188                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1189         }
1190
1191         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1192                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1193                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1194         }
1195
1196         /* Both source and destination address filters only support the full
1197          * mask.
1198          */
1199         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1200                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1201                 ether_addr_copy(rule->filter.src_addr,
1202                                 fsp->h_u.ether_spec.h_source);
1203         }
1204
1205         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1206                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1207                 ether_addr_copy(rule->filter.dst_addr,
1208                                 fsp->h_u.ether_spec.h_dest);
1209         }
1210 }
1211
1212 /**
1213  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1214  * @adapter: Pointer to adapter
1215  * @rule: Rule under evaluation
1216  *
1217  * The driver doesn't support rules with multiple matches so if more than
1218  * one bit in filter flags is set, @rule is considered invalid.
1219  *
1220  * Also, if there is already another rule with the same filter in a different
1221  * location, @rule is considered invalid.
1222  *
1223  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1224  *
1225  * Return: 0 in case of success, negative errno code otherwise.
1226  */
1227 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1228                                       struct igc_nfc_rule *rule)
1229 {
1230         struct net_device *dev = adapter->netdev;
1231         u8 flags = rule->filter.match_flags;
1232         struct igc_nfc_rule *tmp;
1233
1234         if (!flags) {
1235                 netdev_dbg(dev, "Rule with no match\n");
1236                 return -EINVAL;
1237         }
1238
1239         if (flags & (flags - 1)) {
1240                 netdev_dbg(dev, "Rule with multiple matches not supported\n");
1241                 return -EOPNOTSUPP;
1242         }
1243
1244         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1245                 if (!memcmp(&rule->filter, &tmp->filter,
1246                             sizeof(rule->filter)) &&
1247                     tmp->location != rule->location) {
1248                         netdev_dbg(dev, "Rule already exists\n");
1249                         return -EEXIST;
1250                 }
1251         }
1252
1253         return 0;
1254 }
1255
1256 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1257                                     struct ethtool_rxnfc *cmd)
1258 {
1259         struct net_device *netdev = adapter->netdev;
1260         struct ethtool_rx_flow_spec *fsp =
1261                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1262         struct igc_nfc_rule *rule, *old_rule;
1263         int err;
1264
1265         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1266                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1267                 return -EOPNOTSUPP;
1268         }
1269
1270         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1271                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1272                 return -EOPNOTSUPP;
1273         }
1274
1275         if ((fsp->flow_type & FLOW_EXT) &&
1276             fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1277                 netdev_dbg(netdev, "VLAN mask not supported\n");
1278                 return -EOPNOTSUPP;
1279         }
1280
1281         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1282                 netdev_dbg(netdev, "Invalid action\n");
1283                 return -EINVAL;
1284         }
1285
1286         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1287                 netdev_dbg(netdev, "Invalid location\n");
1288                 return -EINVAL;
1289         }
1290
1291         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1292         if (!rule)
1293                 return -ENOMEM;
1294
1295         igc_ethtool_init_nfc_rule(rule, fsp);
1296
1297         mutex_lock(&adapter->nfc_rule_lock);
1298
1299         err = igc_ethtool_check_nfc_rule(adapter, rule);
1300         if (err)
1301                 goto err;
1302
1303         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1304         if (old_rule)
1305                 igc_del_nfc_rule(adapter, old_rule);
1306
1307         err = igc_add_nfc_rule(adapter, rule);
1308         if (err)
1309                 goto err;
1310
1311         mutex_unlock(&adapter->nfc_rule_lock);
1312         return 0;
1313
1314 err:
1315         mutex_unlock(&adapter->nfc_rule_lock);
1316         kfree(rule);
1317         return err;
1318 }
1319
1320 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1321                                     struct ethtool_rxnfc *cmd)
1322 {
1323         struct ethtool_rx_flow_spec *fsp =
1324                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1325         struct igc_nfc_rule *rule;
1326
1327         mutex_lock(&adapter->nfc_rule_lock);
1328
1329         rule = igc_get_nfc_rule(adapter, fsp->location);
1330         if (!rule) {
1331                 mutex_unlock(&adapter->nfc_rule_lock);
1332                 return -EINVAL;
1333         }
1334
1335         igc_del_nfc_rule(adapter, rule);
1336
1337         mutex_unlock(&adapter->nfc_rule_lock);
1338         return 0;
1339 }
1340
1341 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1342                                  struct ethtool_rxnfc *cmd)
1343 {
1344         struct igc_adapter *adapter = netdev_priv(dev);
1345
1346         switch (cmd->cmd) {
1347         case ETHTOOL_SRXFH:
1348                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1349         case ETHTOOL_SRXCLSRLINS:
1350                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1351         case ETHTOOL_SRXCLSRLDEL:
1352                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1353         default:
1354                 return -EOPNOTSUPP;
1355         }
1356 }
1357
1358 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1359 {
1360         struct igc_hw *hw = &adapter->hw;
1361         u32 reg = IGC_RETA(0);
1362         u32 shift = 0;
1363         int i = 0;
1364
1365         while (i < IGC_RETA_SIZE) {
1366                 u32 val = 0;
1367                 int j;
1368
1369                 for (j = 3; j >= 0; j--) {
1370                         val <<= 8;
1371                         val |= adapter->rss_indir_tbl[i + j];
1372                 }
1373
1374                 wr32(reg, val << shift);
1375                 reg += 4;
1376                 i += 4;
1377         }
1378 }
1379
1380 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1381 {
1382         return IGC_RETA_SIZE;
1383 }
1384
1385 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1386                                 u8 *hfunc)
1387 {
1388         struct igc_adapter *adapter = netdev_priv(netdev);
1389         int i;
1390
1391         if (hfunc)
1392                 *hfunc = ETH_RSS_HASH_TOP;
1393         if (!indir)
1394                 return 0;
1395         for (i = 0; i < IGC_RETA_SIZE; i++)
1396                 indir[i] = adapter->rss_indir_tbl[i];
1397
1398         return 0;
1399 }
1400
1401 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1402                                 const u8 *key, const u8 hfunc)
1403 {
1404         struct igc_adapter *adapter = netdev_priv(netdev);
1405         u32 num_queues;
1406         int i;
1407
1408         /* We do not allow change in unsupported parameters */
1409         if (key ||
1410             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1411                 return -EOPNOTSUPP;
1412         if (!indir)
1413                 return 0;
1414
1415         num_queues = adapter->rss_queues;
1416
1417         /* Verify user input. */
1418         for (i = 0; i < IGC_RETA_SIZE; i++)
1419                 if (indir[i] >= num_queues)
1420                         return -EINVAL;
1421
1422         for (i = 0; i < IGC_RETA_SIZE; i++)
1423                 adapter->rss_indir_tbl[i] = indir[i];
1424
1425         igc_write_rss_indir_tbl(adapter);
1426
1427         return 0;
1428 }
1429
1430 static void igc_ethtool_get_channels(struct net_device *netdev,
1431                                      struct ethtool_channels *ch)
1432 {
1433         struct igc_adapter *adapter = netdev_priv(netdev);
1434
1435         /* Report maximum channels */
1436         ch->max_combined = igc_get_max_rss_queues(adapter);
1437
1438         /* Report info for other vector */
1439         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1440                 ch->max_other = NON_Q_VECTORS;
1441                 ch->other_count = NON_Q_VECTORS;
1442         }
1443
1444         ch->combined_count = adapter->rss_queues;
1445 }
1446
1447 static int igc_ethtool_set_channels(struct net_device *netdev,
1448                                     struct ethtool_channels *ch)
1449 {
1450         struct igc_adapter *adapter = netdev_priv(netdev);
1451         unsigned int count = ch->combined_count;
1452         unsigned int max_combined = 0;
1453
1454         /* Verify they are not requesting separate vectors */
1455         if (!count || ch->rx_count || ch->tx_count)
1456                 return -EINVAL;
1457
1458         /* Verify other_count is valid and has not been changed */
1459         if (ch->other_count != NON_Q_VECTORS)
1460                 return -EINVAL;
1461
1462         /* Verify the number of channels doesn't exceed hw limits */
1463         max_combined = igc_get_max_rss_queues(adapter);
1464         if (count > max_combined)
1465                 return -EINVAL;
1466
1467         if (count != adapter->rss_queues) {
1468                 adapter->rss_queues = count;
1469                 igc_set_flag_queue_pairs(adapter, max_combined);
1470
1471                 /* Hardware has to reinitialize queues and interrupts to
1472                  * match the new configuration.
1473                  */
1474                 return igc_reinit_queues(adapter);
1475         }
1476
1477         return 0;
1478 }
1479
1480 static int igc_ethtool_get_ts_info(struct net_device *dev,
1481                                    struct ethtool_ts_info *info)
1482 {
1483         struct igc_adapter *adapter = netdev_priv(dev);
1484
1485         if (adapter->ptp_clock)
1486                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1487         else
1488                 info->phc_index = -1;
1489
1490         switch (adapter->hw.mac.type) {
1491         case igc_i225:
1492                 info->so_timestamping =
1493                         SOF_TIMESTAMPING_TX_SOFTWARE |
1494                         SOF_TIMESTAMPING_RX_SOFTWARE |
1495                         SOF_TIMESTAMPING_SOFTWARE |
1496                         SOF_TIMESTAMPING_TX_HARDWARE |
1497                         SOF_TIMESTAMPING_RX_HARDWARE |
1498                         SOF_TIMESTAMPING_RAW_HARDWARE;
1499
1500                 info->tx_types =
1501                         BIT(HWTSTAMP_TX_OFF) |
1502                         BIT(HWTSTAMP_TX_ON);
1503
1504                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1505                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1506
1507                 return 0;
1508         default:
1509                 return -EOPNOTSUPP;
1510         }
1511 }
1512
1513 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1514 {
1515         struct igc_adapter *adapter = netdev_priv(netdev);
1516         u32 priv_flags = 0;
1517
1518         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1519                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1520
1521         return priv_flags;
1522 }
1523
1524 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1525 {
1526         struct igc_adapter *adapter = netdev_priv(netdev);
1527         unsigned int flags = adapter->flags;
1528
1529         flags &= ~IGC_FLAG_RX_LEGACY;
1530         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1531                 flags |= IGC_FLAG_RX_LEGACY;
1532
1533         if (flags != adapter->flags) {
1534                 adapter->flags = flags;
1535
1536                 /* reset interface to repopulate queues */
1537                 if (netif_running(netdev))
1538                         igc_reinit_locked(adapter);
1539         }
1540
1541         return 0;
1542 }
1543
1544 static int igc_ethtool_get_eee(struct net_device *netdev,
1545                                struct ethtool_eee *edata)
1546 {
1547         struct igc_adapter *adapter = netdev_priv(netdev);
1548         struct igc_hw *hw = &adapter->hw;
1549         u32 eeer;
1550
1551         if (hw->dev_spec._base.eee_enable)
1552                 edata->advertised =
1553                         mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1554
1555         *edata = adapter->eee;
1556         edata->supported = SUPPORTED_Autoneg;
1557
1558         eeer = rd32(IGC_EEER);
1559
1560         /* EEE status on negotiated link */
1561         if (eeer & IGC_EEER_EEE_NEG)
1562                 edata->eee_active = true;
1563
1564         if (eeer & IGC_EEER_TX_LPI_EN)
1565                 edata->tx_lpi_enabled = true;
1566
1567         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1568
1569         edata->advertised = SUPPORTED_Autoneg;
1570         edata->lp_advertised = SUPPORTED_Autoneg;
1571
1572         /* Report correct negotiated EEE status for devices that
1573          * wrongly report EEE at half-duplex
1574          */
1575         if (adapter->link_duplex == HALF_DUPLEX) {
1576                 edata->eee_enabled = false;
1577                 edata->eee_active = false;
1578                 edata->tx_lpi_enabled = false;
1579                 edata->advertised &= ~edata->advertised;
1580         }
1581
1582         return 0;
1583 }
1584
1585 static int igc_ethtool_set_eee(struct net_device *netdev,
1586                                struct ethtool_eee *edata)
1587 {
1588         struct igc_adapter *adapter = netdev_priv(netdev);
1589         struct igc_hw *hw = &adapter->hw;
1590         struct ethtool_eee eee_curr;
1591         s32 ret_val;
1592
1593         memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1594
1595         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1596         if (ret_val) {
1597                 netdev_err(netdev,
1598                            "Problem setting EEE advertisement options\n");
1599                 return -EINVAL;
1600         }
1601
1602         if (eee_curr.eee_enabled) {
1603                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1604                         netdev_err(netdev,
1605                                    "Setting EEE tx-lpi is not supported\n");
1606                         return -EINVAL;
1607                 }
1608
1609                 /* Tx LPI timer is not implemented currently */
1610                 if (edata->tx_lpi_timer) {
1611                         netdev_err(netdev,
1612                                    "Setting EEE Tx LPI timer is not supported\n");
1613                         return -EINVAL;
1614                 }
1615         } else if (!edata->eee_enabled) {
1616                 netdev_err(netdev,
1617                            "Setting EEE options are not supported with EEE disabled\n");
1618                 return -EINVAL;
1619         }
1620
1621         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1622         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1623                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1624                 adapter->flags |= IGC_FLAG_EEE;
1625
1626                 /* reset link */
1627                 if (netif_running(netdev))
1628                         igc_reinit_locked(adapter);
1629                 else
1630                         igc_reset(adapter);
1631         }
1632
1633         return 0;
1634 }
1635
1636 static int igc_ethtool_begin(struct net_device *netdev)
1637 {
1638         struct igc_adapter *adapter = netdev_priv(netdev);
1639
1640         pm_runtime_get_sync(&adapter->pdev->dev);
1641         return 0;
1642 }
1643
1644 static void igc_ethtool_complete(struct net_device *netdev)
1645 {
1646         struct igc_adapter *adapter = netdev_priv(netdev);
1647
1648         pm_runtime_put(&adapter->pdev->dev);
1649 }
1650
1651 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1652                                           struct ethtool_link_ksettings *cmd)
1653 {
1654         struct igc_adapter *adapter = netdev_priv(netdev);
1655         struct igc_hw *hw = &adapter->hw;
1656         u32 status;
1657         u32 speed;
1658
1659         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1660         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1661
1662         /* supported link modes */
1663         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1664         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1665         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1666         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1667         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1668         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1669
1670         /* twisted pair */
1671         cmd->base.port = PORT_TP;
1672         cmd->base.phy_address = hw->phy.addr;
1673
1674         /* advertising link modes */
1675         ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1676         ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1677         ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1678         ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1679         ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1680         ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1681
1682         /* set autoneg settings */
1683         if (hw->mac.autoneg == 1) {
1684                 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1685                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1686                                                      Autoneg);
1687         }
1688
1689         switch (hw->fc.requested_mode) {
1690         case igc_fc_full:
1691                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1692                 break;
1693         case igc_fc_rx_pause:
1694                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1695                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1696                                                      Asym_Pause);
1697                 break;
1698         case igc_fc_tx_pause:
1699                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1700                                                      Asym_Pause);
1701                 break;
1702         default:
1703                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1704                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1705                                                      Asym_Pause);
1706         }
1707
1708         status = rd32(IGC_STATUS);
1709
1710         if (status & IGC_STATUS_LU) {
1711                 if (status & IGC_STATUS_SPEED_1000) {
1712                         /* For I225, STATUS will indicate 1G speed in both
1713                          * 1 Gbps and 2.5 Gbps link modes.
1714                          * An additional bit is used
1715                          * to differentiate between 1 Gbps and 2.5 Gbps.
1716                          */
1717                         if (hw->mac.type == igc_i225 &&
1718                             (status & IGC_STATUS_SPEED_2500)) {
1719                                 speed = SPEED_2500;
1720                         } else {
1721                                 speed = SPEED_1000;
1722                         }
1723                 } else if (status & IGC_STATUS_SPEED_100) {
1724                         speed = SPEED_100;
1725                 } else {
1726                         speed = SPEED_10;
1727                 }
1728                 if ((status & IGC_STATUS_FD) ||
1729                     hw->phy.media_type != igc_media_type_copper)
1730                         cmd->base.duplex = DUPLEX_FULL;
1731                 else
1732                         cmd->base.duplex = DUPLEX_HALF;
1733         } else {
1734                 speed = SPEED_UNKNOWN;
1735                 cmd->base.duplex = DUPLEX_UNKNOWN;
1736         }
1737         cmd->base.speed = speed;
1738         if (hw->mac.autoneg)
1739                 cmd->base.autoneg = AUTONEG_ENABLE;
1740         else
1741                 cmd->base.autoneg = AUTONEG_DISABLE;
1742
1743         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1744         if (hw->phy.media_type == igc_media_type_copper)
1745                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1746                                                       ETH_TP_MDI;
1747         else
1748                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1749
1750         if (hw->phy.mdix == AUTO_ALL_MODES)
1751                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1752         else
1753                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1754
1755         return 0;
1756 }
1757
1758 static int
1759 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1760                                const struct ethtool_link_ksettings *cmd)
1761 {
1762         struct igc_adapter *adapter = netdev_priv(netdev);
1763         struct net_device *dev = adapter->netdev;
1764         struct igc_hw *hw = &adapter->hw;
1765         u32 advertising;
1766
1767         /* When adapter in resetting mode, autoneg/speed/duplex
1768          * cannot be changed
1769          */
1770         if (igc_check_reset_block(hw)) {
1771                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1772                 return -EINVAL;
1773         }
1774
1775         /* MDI setting is only allowed when autoneg enabled because
1776          * some hardware doesn't allow MDI setting when speed or
1777          * duplex is forced.
1778          */
1779         if (cmd->base.eth_tp_mdix_ctrl) {
1780                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1781                     cmd->base.autoneg != AUTONEG_ENABLE) {
1782                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1783                         return -EINVAL;
1784                 }
1785         }
1786
1787         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1788                 usleep_range(1000, 2000);
1789
1790         ethtool_convert_link_mode_to_legacy_u32(&advertising,
1791                                                 cmd->link_modes.advertising);
1792
1793         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1794                 hw->mac.autoneg = 1;
1795                 hw->phy.autoneg_advertised = advertising;
1796                 if (adapter->fc_autoneg)
1797                         hw->fc.requested_mode = igc_fc_default;
1798         } else {
1799                 netdev_info(dev, "Force mode currently not supported\n");
1800         }
1801
1802         /* MDI-X => 2; MDI => 1; Auto => 3 */
1803         if (cmd->base.eth_tp_mdix_ctrl) {
1804                 /* fix up the value for auto (3 => 0) as zero is mapped
1805                  * internally to auto
1806                  */
1807                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1808                         hw->phy.mdix = AUTO_ALL_MODES;
1809                 else
1810                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1811         }
1812
1813         /* reset the link */
1814         if (netif_running(adapter->netdev)) {
1815                 igc_down(adapter);
1816                 igc_up(adapter);
1817         } else {
1818                 igc_reset(adapter);
1819         }
1820
1821         clear_bit(__IGC_RESETTING, &adapter->state);
1822
1823         return 0;
1824 }
1825
1826 static void igc_ethtool_diag_test(struct net_device *netdev,
1827                                   struct ethtool_test *eth_test, u64 *data)
1828 {
1829         struct igc_adapter *adapter = netdev_priv(netdev);
1830         bool if_running = netif_running(netdev);
1831
1832         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1833                 netdev_info(adapter->netdev, "Offline testing starting");
1834                 set_bit(__IGC_TESTING, &adapter->state);
1835
1836                 /* Link test performed before hardware reset so autoneg doesn't
1837                  * interfere with test result
1838                  */
1839                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1840                         eth_test->flags |= ETH_TEST_FL_FAILED;
1841
1842                 if (if_running)
1843                         igc_close(netdev);
1844                 else
1845                         igc_reset(adapter);
1846
1847                 netdev_info(adapter->netdev, "Register testing starting");
1848                 if (!igc_reg_test(adapter, &data[TEST_REG]))
1849                         eth_test->flags |= ETH_TEST_FL_FAILED;
1850
1851                 igc_reset(adapter);
1852
1853                 netdev_info(adapter->netdev, "EEPROM testing starting");
1854                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1855                         eth_test->flags |= ETH_TEST_FL_FAILED;
1856
1857                 igc_reset(adapter);
1858
1859                 /* loopback and interrupt tests
1860                  * will be implemented in the future
1861                  */
1862                 data[TEST_LOOP] = 0;
1863                 data[TEST_IRQ] = 0;
1864
1865                 clear_bit(__IGC_TESTING, &adapter->state);
1866                 if (if_running)
1867                         igc_open(netdev);
1868         } else {
1869                 netdev_info(adapter->netdev, "Online testing starting");
1870
1871                 /* register, eeprom, intr and loopback tests not run online */
1872                 data[TEST_REG] = 0;
1873                 data[TEST_EEP] = 0;
1874                 data[TEST_IRQ] = 0;
1875                 data[TEST_LOOP] = 0;
1876
1877                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1878                         eth_test->flags |= ETH_TEST_FL_FAILED;
1879         }
1880
1881         msleep_interruptible(4 * 1000);
1882 }
1883
1884 static const struct ethtool_ops igc_ethtool_ops = {
1885         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1886         .get_drvinfo            = igc_ethtool_get_drvinfo,
1887         .get_regs_len           = igc_ethtool_get_regs_len,
1888         .get_regs               = igc_ethtool_get_regs,
1889         .get_wol                = igc_ethtool_get_wol,
1890         .set_wol                = igc_ethtool_set_wol,
1891         .get_msglevel           = igc_ethtool_get_msglevel,
1892         .set_msglevel           = igc_ethtool_set_msglevel,
1893         .nway_reset             = igc_ethtool_nway_reset,
1894         .get_link               = igc_ethtool_get_link,
1895         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
1896         .get_eeprom             = igc_ethtool_get_eeprom,
1897         .set_eeprom             = igc_ethtool_set_eeprom,
1898         .get_ringparam          = igc_ethtool_get_ringparam,
1899         .set_ringparam          = igc_ethtool_set_ringparam,
1900         .get_pauseparam         = igc_ethtool_get_pauseparam,
1901         .set_pauseparam         = igc_ethtool_set_pauseparam,
1902         .get_strings            = igc_ethtool_get_strings,
1903         .get_sset_count         = igc_ethtool_get_sset_count,
1904         .get_ethtool_stats      = igc_ethtool_get_stats,
1905         .get_coalesce           = igc_ethtool_get_coalesce,
1906         .set_coalesce           = igc_ethtool_set_coalesce,
1907         .get_rxnfc              = igc_ethtool_get_rxnfc,
1908         .set_rxnfc              = igc_ethtool_set_rxnfc,
1909         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
1910         .get_rxfh               = igc_ethtool_get_rxfh,
1911         .set_rxfh               = igc_ethtool_set_rxfh,
1912         .get_ts_info            = igc_ethtool_get_ts_info,
1913         .get_channels           = igc_ethtool_get_channels,
1914         .set_channels           = igc_ethtool_set_channels,
1915         .get_priv_flags         = igc_ethtool_get_priv_flags,
1916         .set_priv_flags         = igc_ethtool_set_priv_flags,
1917         .get_eee                = igc_ethtool_get_eee,
1918         .set_eee                = igc_ethtool_set_eee,
1919         .begin                  = igc_ethtool_begin,
1920         .complete               = igc_ethtool_complete,
1921         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
1922         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
1923         .self_test              = igc_ethtool_diag_test,
1924 };
1925
1926 void igc_ethtool_set_ops(struct net_device *netdev)
1927 {
1928         netdev->ethtool_ops = &igc_ethtool_ops;
1929 }