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         regs_buff[213] = adapter->stats.tlpic;
 326         regs_buff[214] = adapter->stats.rlpic;
 327 }
 328
 329 static void igc_ethtool_get_wol(struct net_device *netdev,
 330                                 struct ethtool_wolinfo *wol)
 331 {
 332         struct igc_adapter *adapter = netdev_priv(netdev);
 333
 334         wol->wolopts = 0;
 335
 336         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 337                 return;
 338
 339         wol->supported = WAKE_UCAST | WAKE_MCAST |
 340                          WAKE_BCAST | WAKE_MAGIC |
 341                          WAKE_PHY;
 342
 343         /* apply any specific unsupported masks here */
 344         switch (adapter->hw.device_id) {
 345         default:
 346                 break;
 347         }
 348
 349         if (adapter->wol & IGC_WUFC_EX)
 350                 wol->wolopts |= WAKE_UCAST;
 351         if (adapter->wol & IGC_WUFC_MC)
 352                 wol->wolopts |= WAKE_MCAST;
 353         if (adapter->wol & IGC_WUFC_BC)
 354                 wol->wolopts |= WAKE_BCAST;
 355         if (adapter->wol & IGC_WUFC_MAG)
 356                 wol->wolopts |= WAKE_MAGIC;
 357         if (adapter->wol & IGC_WUFC_LNKC)
 358                 wol->wolopts |= WAKE_PHY;
 359 }
 360
 361 static int igc_ethtool_set_wol(struct net_device *netdev,
 362                                struct ethtool_wolinfo *wol)
 363 {
 364         struct igc_adapter *adapter = netdev_priv(netdev);
 365
 366         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
 367                 return -EOPNOTSUPP;
 368
 369         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 370                 return wol->wolopts ? -EOPNOTSUPP : 0;
 371
 372         /* these settings will always override what we currently have */
 373         adapter->wol = 0;
 374
 375         if (wol->wolopts & WAKE_UCAST)
 376                 adapter->wol |= IGC_WUFC_EX;
 377         if (wol->wolopts & WAKE_MCAST)
 378                 adapter->wol |= IGC_WUFC_MC;
 379         if (wol->wolopts & WAKE_BCAST)
 380                 adapter->wol |= IGC_WUFC_BC;
 381         if (wol->wolopts & WAKE_MAGIC)
 382                 adapter->wol |= IGC_WUFC_MAG;
 383         if (wol->wolopts & WAKE_PHY)
 384                 adapter->wol |= IGC_WUFC_LNKC;
 385         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 386
 387         return 0;
 388 }
 389
 390 static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
 391 {
 392         struct igc_adapter *adapter = netdev_priv(netdev);
 393
 394         return adapter->msg_enable;
 395 }
 396
 397 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
 398 {
 399         struct igc_adapter *adapter = netdev_priv(netdev);
 400
 401         adapter->msg_enable = data;
 402 }
 403
 404 static int igc_ethtool_nway_reset(struct net_device *netdev)
 405 {
 406         struct igc_adapter *adapter = netdev_priv(netdev);
 407
 408         if (netif_running(netdev))
 409                 igc_reinit_locked(adapter);
 410         return 0;
 411 }
 412
 413 static u32 igc_ethtool_get_link(struct net_device *netdev)
 414 {
 415         struct igc_adapter *adapter = netdev_priv(netdev);
 416         struct igc_mac_info *mac = &adapter->hw.mac;
 417
 418         /* If the link is not reported up to netdev, interrupts are disabled,
 419          * and so the physical link state may have changed since we last
 420          * looked. Set get_link_status to make sure that the true link
 421          * state is interrogated, rather than pulling a cached and possibly
 422          * stale link state from the driver.
 423          */
 424         if (!netif_carrier_ok(netdev))
 425                 mac->get_link_status = 1;
 426
 427         return igc_has_link(adapter);
 428 }
 429
 430 static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
 431 {
 432         struct igc_adapter *adapter = netdev_priv(netdev);
 433
 434         return adapter->hw.nvm.word_size * 2;
 435 }
 436
 437 static int igc_ethtool_get_eeprom(struct net_device *netdev,
 438                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 439 {
 440         struct igc_adapter *adapter = netdev_priv(netdev);
 441         struct igc_hw *hw = &adapter->hw;
 442         int first_word, last_word;
 443         u16 *eeprom_buff;
 444         int ret_val = 0;
 445         u16 i;
 446
 447         if (eeprom->len == 0)
 448                 return -EINVAL;
 449
 450         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 451
 452         first_word = eeprom->offset >> 1;
 453         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 454
 455         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 456                                     GFP_KERNEL);
 457         if (!eeprom_buff)
 458                 return -ENOMEM;
 459
 460         if (hw->nvm.type == igc_nvm_eeprom_spi) {
 461                 ret_val = hw->nvm.ops.read(hw, first_word,
 462                                            last_word - first_word + 1,
 463                                            eeprom_buff);
 464         } else {
 465                 for (i = 0; i < last_word - first_word + 1; i++) {
 466                         ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 467                                                    &eeprom_buff[i]);
 468                         if (ret_val)
 469                                 break;
 470                 }
 471         }
 472
 473         /* Device's eeprom is always little-endian, word addressable */
 474         for (i = 0; i < last_word - first_word + 1; i++)
 475                 le16_to_cpus(&eeprom_buff[i]);
 476
 477         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 478                eeprom->len);
 479         kfree(eeprom_buff);
 480
 481         return ret_val;
 482 }
 483
 484 static int igc_ethtool_set_eeprom(struct net_device *netdev,
 485                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 486 {
 487         struct igc_adapter *adapter = netdev_priv(netdev);
 488         struct igc_hw *hw = &adapter->hw;
 489         int max_len, first_word, last_word, ret_val = 0;
 490         u16 *eeprom_buff;
 491         void *ptr;
 492         u16 i;
 493
 494         if (eeprom->len == 0)
 495                 return -EOPNOTSUPP;
 496
 497         if (hw->mac.type >= igc_i225 &&
 498             !igc_get_flash_presence_i225(hw)) {
 499                 return -EOPNOTSUPP;
 500         }
 501
 502         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 503                 return -EFAULT;
 504
 505         max_len = hw->nvm.word_size * 2;
 506
 507         first_word = eeprom->offset >> 1;
 508         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 509         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 510         if (!eeprom_buff)
 511                 return -ENOMEM;
 512
 513         ptr = (void *)eeprom_buff;
 514
 515         if (eeprom->offset & 1) {
 516                 /* need read/modify/write of first changed EEPROM word
 517                  * only the second byte of the word is being modified
 518                  */
 519                 ret_val = hw->nvm.ops.read(hw, first_word, 1,
 520                                             &eeprom_buff[0]);
 521                 ptr++;
 522         }
 523         if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
 524                 /* need read/modify/write of last changed EEPROM word
 525                  * only the first byte of the word is being modified
 526                  */
 527                 ret_val = hw->nvm.ops.read(hw, last_word, 1,
 528                                    &eeprom_buff[last_word - first_word]);
 529         }
 530
 531         /* Device's eeprom is always little-endian, word addressable */
 532         for (i = 0; i < last_word - first_word + 1; i++)
 533                 le16_to_cpus(&eeprom_buff[i]);
 534
 535         memcpy(ptr, bytes, eeprom->len);
 536
 537         for (i = 0; i < last_word - first_word + 1; i++)
 538                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 539
 540         ret_val = hw->nvm.ops.write(hw, first_word,
 541                                     last_word - first_word + 1, eeprom_buff);
 542
 543         /* Update the checksum if nvm write succeeded */
 544         if (ret_val == 0)
 545                 hw->nvm.ops.update(hw);
 546
 547         /* check if need: igc_set_fw_version(adapter); */
 548         kfree(eeprom_buff);
 549         return ret_val;
 550 }
 551
 552 static void igc_ethtool_get_ringparam(struct net_device *netdev,
 553                                       struct ethtool_ringparam *ring)
 554 {
 555         struct igc_adapter *adapter = netdev_priv(netdev);
 556
 557         ring->rx_max_pending = IGC_MAX_RXD;
 558         ring->tx_max_pending = IGC_MAX_TXD;
 559         ring->rx_pending = adapter->rx_ring_count;
 560         ring->tx_pending = adapter->tx_ring_count;
 561 }
 562
 563 static int igc_ethtool_set_ringparam(struct net_device *netdev,
 564                                      struct ethtool_ringparam *ring)
 565 {
 566         struct igc_adapter *adapter = netdev_priv(netdev);
 567         struct igc_ring *temp_ring;
 568         u16 new_rx_count, new_tx_count;
 569         int i, err = 0;
 570
 571         if (ring->rx_mini_pending || ring->rx_jumbo_pending)
 572                 return -EINVAL;
 573
 574         new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
 575         new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
 576         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 577
 578         new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
 579         new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
 580         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 581
 582         if (new_tx_count == adapter->tx_ring_count &&
 583             new_rx_count == adapter->rx_ring_count) {
 584                 /* nothing to do */
 585                 return 0;
 586         }
 587
 588         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 589                 usleep_range(1000, 2000);
 590
 591         if (!netif_running(adapter->netdev)) {
 592                 for (i = 0; i < adapter->num_tx_queues; i++)
 593                         adapter->tx_ring[i]->count = new_tx_count;
 594                 for (i = 0; i < adapter->num_rx_queues; i++)
 595                         adapter->rx_ring[i]->count = new_rx_count;
 596                 adapter->tx_ring_count = new_tx_count;
 597                 adapter->rx_ring_count = new_rx_count;
 598                 goto clear_reset;
 599         }
 600
 601         if (adapter->num_tx_queues > adapter->num_rx_queues)
 602                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 603                                                adapter->num_tx_queues));
 604         else
 605                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 606                                                adapter->num_rx_queues));
 607
 608         if (!temp_ring) {
 609                 err = -ENOMEM;
 610                 goto clear_reset;
 611         }
 612
 613         igc_down(adapter);
 614
 615         /* We can't just free everything and then setup again,
 616          * because the ISRs in MSI-X mode get passed pointers
 617          * to the Tx and Rx ring structs.
 618          */
 619         if (new_tx_count != adapter->tx_ring_count) {
 620                 for (i = 0; i < adapter->num_tx_queues; i++) {
 621                         memcpy(&temp_ring[i], adapter->tx_ring[i],
 622                                sizeof(struct igc_ring));
 623
 624                         temp_ring[i].count = new_tx_count;
 625                         err = igc_setup_tx_resources(&temp_ring[i]);
 626                         if (err) {
 627                                 while (i) {
 628                                         i--;
 629                                         igc_free_tx_resources(&temp_ring[i]);
 630                                 }
 631                                 goto err_setup;
 632                         }
 633                 }
 634
 635                 for (i = 0; i < adapter->num_tx_queues; i++) {
 636                         igc_free_tx_resources(adapter->tx_ring[i]);
 637
 638                         memcpy(adapter->tx_ring[i], &temp_ring[i],
 639                                sizeof(struct igc_ring));
 640                 }
 641
 642                 adapter->tx_ring_count = new_tx_count;
 643         }
 644
 645         if (new_rx_count != adapter->rx_ring_count) {
 646                 for (i = 0; i < adapter->num_rx_queues; i++) {
 647                         memcpy(&temp_ring[i], adapter->rx_ring[i],
 648                                sizeof(struct igc_ring));
 649
 650                         temp_ring[i].count = new_rx_count;
 651                         err = igc_setup_rx_resources(&temp_ring[i]);
 652                         if (err) {
 653                                 while (i) {
 654                                         i--;
 655                                         igc_free_rx_resources(&temp_ring[i]);
 656                                 }
 657                                 goto err_setup;
 658                         }
 659                 }
 660
 661                 for (i = 0; i < adapter->num_rx_queues; i++) {
 662                         igc_free_rx_resources(adapter->rx_ring[i]);
 663
 664                         memcpy(adapter->rx_ring[i], &temp_ring[i],
 665                                sizeof(struct igc_ring));
 666                 }
 667
 668                 adapter->rx_ring_count = new_rx_count;
 669         }
 670 err_setup:
 671         igc_up(adapter);
 672         vfree(temp_ring);
 673 clear_reset:
 674         clear_bit(__IGC_RESETTING, &adapter->state);
 675         return err;
 676 }
 677
 678 static void igc_ethtool_get_pauseparam(struct net_device *netdev,
 679                                        struct ethtool_pauseparam *pause)
 680 {
 681         struct igc_adapter *adapter = netdev_priv(netdev);
 682         struct igc_hw *hw = &adapter->hw;
 683
 684         pause->autoneg =
 685                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 686
 687         if (hw->fc.current_mode == igc_fc_rx_pause) {
 688                 pause->rx_pause = 1;
 689         } else if (hw->fc.current_mode == igc_fc_tx_pause) {
 690                 pause->tx_pause = 1;
 691         } else if (hw->fc.current_mode == igc_fc_full) {
 692                 pause->rx_pause = 1;
 693                 pause->tx_pause = 1;
 694         }
 695 }
 696
 697 static int igc_ethtool_set_pauseparam(struct net_device *netdev,
 698                                       struct ethtool_pauseparam *pause)
 699 {
 700         struct igc_adapter *adapter = netdev_priv(netdev);
 701         struct igc_hw *hw = &adapter->hw;
 702         int retval = 0;
 703
 704         adapter->fc_autoneg = pause->autoneg;
 705
 706         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 707                 usleep_range(1000, 2000);
 708
 709         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 710                 hw->fc.requested_mode = igc_fc_default;
 711                 if (netif_running(adapter->netdev)) {
 712                         igc_down(adapter);
 713                         igc_up(adapter);
 714                 } else {
 715                         igc_reset(adapter);
 716                 }
 717         } else {
 718                 if (pause->rx_pause && pause->tx_pause)
 719                         hw->fc.requested_mode = igc_fc_full;
 720                 else if (pause->rx_pause && !pause->tx_pause)
 721                         hw->fc.requested_mode = igc_fc_rx_pause;
 722                 else if (!pause->rx_pause && pause->tx_pause)
 723                         hw->fc.requested_mode = igc_fc_tx_pause;
 724                 else if (!pause->rx_pause && !pause->tx_pause)
 725                         hw->fc.requested_mode = igc_fc_none;
 726
 727                 hw->fc.current_mode = hw->fc.requested_mode;
 728
 729                 retval = ((hw->phy.media_type == igc_media_type_copper) ?
 730                           igc_force_mac_fc(hw) : igc_setup_link(hw));
 731         }
 732
 733         clear_bit(__IGC_RESETTING, &adapter->state);
 734         return retval;
 735 }
 736
 737 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
 738                                     u8 *data)
 739 {
 740         struct igc_adapter *adapter = netdev_priv(netdev);
 741         u8 *p = data;
 742         int i;
 743
 744         switch (stringset) {
 745         case ETH_SS_TEST:
 746                 memcpy(data, *igc_gstrings_test,
 747                        IGC_TEST_LEN * ETH_GSTRING_LEN);
 748                 break;
 749         case ETH_SS_STATS:
 750                 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 751                         memcpy(p, igc_gstrings_stats[i].stat_string,
 752                                ETH_GSTRING_LEN);
 753                         p += ETH_GSTRING_LEN;
 754                 }
 755                 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
 756                         memcpy(p, igc_gstrings_net_stats[i].stat_string,
 757                                ETH_GSTRING_LEN);
 758                         p += ETH_GSTRING_LEN;
 759                 }
 760                 for (i = 0; i < adapter->num_tx_queues; i++) {
 761                         sprintf(p, "tx_queue_%u_packets", i);
 762                         p += ETH_GSTRING_LEN;
 763                         sprintf(p, "tx_queue_%u_bytes", i);
 764                         p += ETH_GSTRING_LEN;
 765                         sprintf(p, "tx_queue_%u_restart", i);
 766                         p += ETH_GSTRING_LEN;
 767                 }
 768                 for (i = 0; i < adapter->num_rx_queues; i++) {
 769                         sprintf(p, "rx_queue_%u_packets", i);
 770                         p += ETH_GSTRING_LEN;
 771                         sprintf(p, "rx_queue_%u_bytes", i);
 772                         p += ETH_GSTRING_LEN;
 773                         sprintf(p, "rx_queue_%u_drops", i);
 774                         p += ETH_GSTRING_LEN;
 775                         sprintf(p, "rx_queue_%u_csum_err", i);
 776                         p += ETH_GSTRING_LEN;
 777                         sprintf(p, "rx_queue_%u_alloc_failed", i);
 778                         p += ETH_GSTRING_LEN;
 779                 }
 780                 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
 781                 break;
 782         case ETH_SS_PRIV_FLAGS:
 783                 memcpy(data, igc_priv_flags_strings,
 784                        IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 785                 break;
 786         }
 787 }
 788
 789 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 790 {
 791         switch (sset) {
 792         case ETH_SS_STATS:
 793                 return IGC_STATS_LEN;
 794         case ETH_SS_TEST:
 795                 return IGC_TEST_LEN;
 796         case ETH_SS_PRIV_FLAGS:
 797                 return IGC_PRIV_FLAGS_STR_LEN;
 798         default:
 799                 return -ENOTSUPP;
 800         }
 801 }
 802
 803 static void igc_ethtool_get_stats(struct net_device *netdev,
 804                                   struct ethtool_stats *stats, u64 *data)
 805 {
 806         struct igc_adapter *adapter = netdev_priv(netdev);
 807         struct rtnl_link_stats64 *net_stats = &adapter->stats64;
 808         unsigned int start;
 809         struct igc_ring *ring;
 810         int i, j;
 811         char *p;
 812
 813         spin_lock(&adapter->stats64_lock);
 814         igc_update_stats(adapter);
 815
 816         for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 817                 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
 818                 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
 819                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 820         }
 821         for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
 822                 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
 823                 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
 824                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 825         }
 826         for (j = 0; j < adapter->num_tx_queues; j++) {
 827                 u64     restart2;
 828
 829                 ring = adapter->tx_ring[j];
 830                 do {
 831                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
 832                         data[i]   = ring->tx_stats.packets;
 833                         data[i + 1] = ring->tx_stats.bytes;
 834                         data[i + 2] = ring->tx_stats.restart_queue;
 835                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
 836                 do {
 837                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
 838                         restart2  = ring->tx_stats.restart_queue2;
 839                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
 840                 data[i + 2] += restart2;
 841
 842                 i += IGC_TX_QUEUE_STATS_LEN;
 843         }
 844         for (j = 0; j < adapter->num_rx_queues; j++) {
 845                 ring = adapter->rx_ring[j];
 846                 do {
 847                         start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
 848                         data[i]   = ring->rx_stats.packets;
 849                         data[i + 1] = ring->rx_stats.bytes;
 850                         data[i + 2] = ring->rx_stats.drops;
 851                         data[i + 3] = ring->rx_stats.csum_err;
 852                         data[i + 4] = ring->rx_stats.alloc_failed;
 853                 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
 854                 i += IGC_RX_QUEUE_STATS_LEN;
 855         }
 856         spin_unlock(&adapter->stats64_lock);
 857 }
 858
 859 static int igc_ethtool_get_coalesce(struct net_device *netdev,
 860                                     struct ethtool_coalesce *ec)
 861 {
 862         struct igc_adapter *adapter = netdev_priv(netdev);
 863
 864         if (adapter->rx_itr_setting <= 3)
 865                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
 866         else
 867                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
 868
 869         if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
 870                 if (adapter->tx_itr_setting <= 3)
 871                         ec->tx_coalesce_usecs = adapter->tx_itr_setting;
 872                 else
 873                         ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
 874         }
 875
 876         return 0;
 877 }
 878
 879 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 880                                     struct ethtool_coalesce *ec)
 881 {
 882         struct igc_adapter *adapter = netdev_priv(netdev);
 883         int i;
 884
 885         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 886             (ec->rx_coalesce_usecs > 3 &&
 887              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 888             ec->rx_coalesce_usecs == 2)
 889                 return -EINVAL;
 890
 891         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 892             (ec->tx_coalesce_usecs > 3 &&
 893              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 894             ec->tx_coalesce_usecs == 2)
 895                 return -EINVAL;
 896
 897         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
 898                 return -EINVAL;
 899
 900         /* If ITR is disabled, disable DMAC */
 901         if (ec->rx_coalesce_usecs == 0) {
 902                 if (adapter->flags & IGC_FLAG_DMAC)
 903                         adapter->flags &= ~IGC_FLAG_DMAC;
 904         }
 905
 906         /* convert to rate of irq's per second */
 907         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 908                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 909         else
 910                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 911
 912         /* convert to rate of irq's per second */
 913         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 914                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 915         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 916                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 917         else
 918                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 919
 920         for (i = 0; i < adapter->num_q_vectors; i++) {
 921                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 922
 923                 q_vector->tx.work_limit = adapter->tx_work_limit;
 924                 if (q_vector->rx.ring)
 925                         q_vector->itr_val = adapter->rx_itr_setting;
 926                 else
 927                         q_vector->itr_val = adapter->tx_itr_setting;
 928                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 929                         q_vector->itr_val = IGC_START_ITR;
 930                 q_vector->set_itr = 1;
 931         }
 932
 933         return 0;
 934 }
 935
 936 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 937 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 938                                     struct ethtool_rxnfc *cmd)
 939 {
 940         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 941         struct igc_nfc_rule *rule = NULL;
 942
 943         cmd->data = IGC_MAX_RXNFC_RULES;
 944
 945         mutex_lock(&adapter->nfc_rule_lock);
 946
 947         rule = igc_get_nfc_rule(adapter, fsp->location);
 948         if (!rule)
 949                 goto out;
 950
 951         fsp->flow_type = ETHER_FLOW;
 952         fsp->ring_cookie = rule->action;
 953
 954         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 955                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 956                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 957         }
 958
 959         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 960                 fsp->flow_type |= FLOW_EXT;
 961                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 962                 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
 963         }
 964
 965         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 966                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 967                                 rule->filter.dst_addr);
 968                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 969         }
 970
 971         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
 972                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
 973                                 rule->filter.src_addr);
 974                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
 975         }
 976
 977         mutex_unlock(&adapter->nfc_rule_lock);
 978         return 0;
 979
 980 out:
 981         mutex_unlock(&adapter->nfc_rule_lock);
 982         return -EINVAL;
 983 }
 984
 985 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
 986                                      struct ethtool_rxnfc *cmd,
 987                                      u32 *rule_locs)
 988 {
 989         struct igc_nfc_rule *rule;
 990         int cnt = 0;
 991
 992         cmd->data = IGC_MAX_RXNFC_RULES;
 993
 994         mutex_lock(&adapter->nfc_rule_lock);
 995
 996         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
 997                 if (cnt == cmd->rule_cnt) {
 998                         mutex_unlock(&adapter->nfc_rule_lock);
 999                         return -EMSGSIZE;
1000                 }
1001                 rule_locs[cnt] = rule->location;
1002                 cnt++;
1003         }
1004
1005         mutex_unlock(&adapter->nfc_rule_lock);
1006
1007         cmd->rule_cnt = cnt;
1008
1009         return 0;
1010 }
1011
1012 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1013                                          struct ethtool_rxnfc *cmd)
1014 {
1015         cmd->data = 0;
1016
1017         /* Report default options for RSS on igc */
1018         switch (cmd->flow_type) {
1019         case TCP_V4_FLOW:
1020                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1021                 fallthrough;
1022         case UDP_V4_FLOW:
1023                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1024                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1025                 fallthrough;
1026         case SCTP_V4_FLOW:
1027         case AH_ESP_V4_FLOW:
1028         case AH_V4_FLOW:
1029         case ESP_V4_FLOW:
1030         case IPV4_FLOW:
1031                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1032                 break;
1033         case TCP_V6_FLOW:
1034                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1035                 fallthrough;
1036         case UDP_V6_FLOW:
1037                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1038                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1039                 fallthrough;
1040         case SCTP_V6_FLOW:
1041         case AH_ESP_V6_FLOW:
1042         case AH_V6_FLOW:
1043         case ESP_V6_FLOW:
1044         case IPV6_FLOW:
1045                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1046                 break;
1047         default:
1048                 return -EINVAL;
1049         }
1050
1051         return 0;
1052 }
1053
1054 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1055                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1056 {
1057         struct igc_adapter *adapter = netdev_priv(dev);
1058
1059         switch (cmd->cmd) {
1060         case ETHTOOL_GRXRINGS:
1061                 cmd->data = adapter->num_rx_queues;
1062                 return 0;
1063         case ETHTOOL_GRXCLSRLCNT:
1064                 cmd->rule_cnt = adapter->nfc_rule_count;
1065                 return 0;
1066         case ETHTOOL_GRXCLSRULE:
1067                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1068         case ETHTOOL_GRXCLSRLALL:
1069                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1070         case ETHTOOL_GRXFH:
1071                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1072         default:
1073                 return -EOPNOTSUPP;
1074         }
1075 }
1076
1077 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1078                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1079 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1080                                         struct ethtool_rxnfc *nfc)
1081 {
1082         u32 flags = adapter->flags;
1083
1084         /* RSS does not support anything other than hashing
1085          * to queues on src and dst IPs and ports
1086          */
1087         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1088                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1089                 return -EINVAL;
1090
1091         switch (nfc->flow_type) {
1092         case TCP_V4_FLOW:
1093         case TCP_V6_FLOW:
1094                 if (!(nfc->data & RXH_IP_SRC) ||
1095                     !(nfc->data & RXH_IP_DST) ||
1096                     !(nfc->data & RXH_L4_B_0_1) ||
1097                     !(nfc->data & RXH_L4_B_2_3))
1098                         return -EINVAL;
1099                 break;
1100         case UDP_V4_FLOW:
1101                 if (!(nfc->data & RXH_IP_SRC) ||
1102                     !(nfc->data & RXH_IP_DST))
1103                         return -EINVAL;
1104                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1105                 case 0:
1106                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1107                         break;
1108                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1109                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1110                         break;
1111                 default:
1112                         return -EINVAL;
1113                 }
1114                 break;
1115         case UDP_V6_FLOW:
1116                 if (!(nfc->data & RXH_IP_SRC) ||
1117                     !(nfc->data & RXH_IP_DST))
1118                         return -EINVAL;
1119                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1120                 case 0:
1121                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1122                         break;
1123                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1124                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1125                         break;
1126                 default:
1127                         return -EINVAL;
1128                 }
1129                 break;
1130         case AH_ESP_V4_FLOW:
1131         case AH_V4_FLOW:
1132         case ESP_V4_FLOW:
1133         case SCTP_V4_FLOW:
1134         case AH_ESP_V6_FLOW:
1135         case AH_V6_FLOW:
1136         case ESP_V6_FLOW:
1137         case SCTP_V6_FLOW:
1138                 if (!(nfc->data & RXH_IP_SRC) ||
1139                     !(nfc->data & RXH_IP_DST) ||
1140                     (nfc->data & RXH_L4_B_0_1) ||
1141                     (nfc->data & RXH_L4_B_2_3))
1142                         return -EINVAL;
1143                 break;
1144         default:
1145                 return -EINVAL;
1146         }
1147
1148         /* if we changed something we need to update flags */
1149         if (flags != adapter->flags) {
1150                 struct igc_hw *hw = &adapter->hw;
1151                 u32 mrqc = rd32(IGC_MRQC);
1152
1153                 if ((flags & UDP_RSS_FLAGS) &&
1154                     !(adapter->flags & UDP_RSS_FLAGS))
1155                         netdev_err(adapter->netdev,
1156                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1157
1158                 adapter->flags = flags;
1159
1160                 /* Perform hash on these packet types */
1161                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1162                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1163                         IGC_MRQC_RSS_FIELD_IPV6 |
1164                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1165
1166                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1167                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1168
1169                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1170                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1171
1172                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1173                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1174
1175                 wr32(IGC_MRQC, mrqc);
1176         }
1177
1178         return 0;
1179 }
1180
1181 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1182                                       const struct ethtool_rx_flow_spec *fsp)
1183 {
1184         INIT_LIST_HEAD(&rule->list);
1185
1186         rule->action = fsp->ring_cookie;
1187         rule->location = fsp->location;
1188
1189         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1190                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1191                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1192         }
1193
1194         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1195                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1196                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1197         }
1198
1199         /* Both source and destination address filters only support the full
1200          * mask.
1201          */
1202         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1203                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1204                 ether_addr_copy(rule->filter.src_addr,
1205                                 fsp->h_u.ether_spec.h_source);
1206         }
1207
1208         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1209                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1210                 ether_addr_copy(rule->filter.dst_addr,
1211                                 fsp->h_u.ether_spec.h_dest);
1212         }
1213 }
1214
1215 /**
1216  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1217  * @adapter: Pointer to adapter
1218  * @rule: Rule under evaluation
1219  *
1220  * The driver doesn't support rules with multiple matches so if more than
1221  * one bit in filter flags is set, @rule is considered invalid.
1222  *
1223  * Also, if there is already another rule with the same filter in a different
1224  * location, @rule is considered invalid.
1225  *
1226  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1227  *
1228  * Return: 0 in case of success, negative errno code otherwise.
1229  */
1230 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1231                                       struct igc_nfc_rule *rule)
1232 {
1233         struct net_device *dev = adapter->netdev;
1234         u8 flags = rule->filter.match_flags;
1235         struct igc_nfc_rule *tmp;
1236
1237         if (!flags) {
1238                 netdev_dbg(dev, "Rule with no match\n");
1239                 return -EINVAL;
1240         }
1241
1242         if (flags & (flags - 1)) {
1243                 netdev_dbg(dev, "Rule with multiple matches not supported\n");
1244                 return -EOPNOTSUPP;
1245         }
1246
1247         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1248                 if (!memcmp(&rule->filter, &tmp->filter,
1249                             sizeof(rule->filter)) &&
1250                     tmp->location != rule->location) {
1251                         netdev_dbg(dev, "Rule already exists\n");
1252                         return -EEXIST;
1253                 }
1254         }
1255
1256         return 0;
1257 }
1258
1259 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1260                                     struct ethtool_rxnfc *cmd)
1261 {
1262         struct net_device *netdev = adapter->netdev;
1263         struct ethtool_rx_flow_spec *fsp =
1264                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1265         struct igc_nfc_rule *rule, *old_rule;
1266         int err;
1267
1268         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1269                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1270                 return -EOPNOTSUPP;
1271         }
1272
1273         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1274                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1275                 return -EOPNOTSUPP;
1276         }
1277
1278         if ((fsp->flow_type & FLOW_EXT) &&
1279             fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1280                 netdev_dbg(netdev, "VLAN mask not supported\n");
1281                 return -EOPNOTSUPP;
1282         }
1283
1284         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1285                 netdev_dbg(netdev, "Invalid action\n");
1286                 return -EINVAL;
1287         }
1288
1289         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1290                 netdev_dbg(netdev, "Invalid location\n");
1291                 return -EINVAL;
1292         }
1293
1294         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1295         if (!rule)
1296                 return -ENOMEM;
1297
1298         igc_ethtool_init_nfc_rule(rule, fsp);
1299
1300         mutex_lock(&adapter->nfc_rule_lock);
1301
1302         err = igc_ethtool_check_nfc_rule(adapter, rule);
1303         if (err)
1304                 goto err;
1305
1306         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1307         if (old_rule)
1308                 igc_del_nfc_rule(adapter, old_rule);
1309
1310         err = igc_add_nfc_rule(adapter, rule);
1311         if (err)
1312                 goto err;
1313
1314         mutex_unlock(&adapter->nfc_rule_lock);
1315         return 0;
1316
1317 err:
1318         mutex_unlock(&adapter->nfc_rule_lock);
1319         kfree(rule);
1320         return err;
1321 }
1322
1323 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1324                                     struct ethtool_rxnfc *cmd)
1325 {
1326         struct ethtool_rx_flow_spec *fsp =
1327                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1328         struct igc_nfc_rule *rule;
1329
1330         mutex_lock(&adapter->nfc_rule_lock);
1331
1332         rule = igc_get_nfc_rule(adapter, fsp->location);
1333         if (!rule) {
1334                 mutex_unlock(&adapter->nfc_rule_lock);
1335                 return -EINVAL;
1336         }
1337
1338         igc_del_nfc_rule(adapter, rule);
1339
1340         mutex_unlock(&adapter->nfc_rule_lock);
1341         return 0;
1342 }
1343
1344 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1345                                  struct ethtool_rxnfc *cmd)
1346 {
1347         struct igc_adapter *adapter = netdev_priv(dev);
1348
1349         switch (cmd->cmd) {
1350         case ETHTOOL_SRXFH:
1351                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1352         case ETHTOOL_SRXCLSRLINS:
1353                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1354         case ETHTOOL_SRXCLSRLDEL:
1355                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1356         default:
1357                 return -EOPNOTSUPP;
1358         }
1359 }
1360
1361 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1362 {
1363         struct igc_hw *hw = &adapter->hw;
1364         u32 reg = IGC_RETA(0);
1365         u32 shift = 0;
1366         int i = 0;
1367
1368         while (i < IGC_RETA_SIZE) {
1369                 u32 val = 0;
1370                 int j;
1371
1372                 for (j = 3; j >= 0; j--) {
1373                         val <<= 8;
1374                         val |= adapter->rss_indir_tbl[i + j];
1375                 }
1376
1377                 wr32(reg, val << shift);
1378                 reg += 4;
1379                 i += 4;
1380         }
1381 }
1382
1383 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1384 {
1385         return IGC_RETA_SIZE;
1386 }
1387
1388 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1389                                 u8 *hfunc)
1390 {
1391         struct igc_adapter *adapter = netdev_priv(netdev);
1392         int i;
1393
1394         if (hfunc)
1395                 *hfunc = ETH_RSS_HASH_TOP;
1396         if (!indir)
1397                 return 0;
1398         for (i = 0; i < IGC_RETA_SIZE; i++)
1399                 indir[i] = adapter->rss_indir_tbl[i];
1400
1401         return 0;
1402 }
1403
1404 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1405                                 const u8 *key, const u8 hfunc)
1406 {
1407         struct igc_adapter *adapter = netdev_priv(netdev);
1408         u32 num_queues;
1409         int i;
1410
1411         /* We do not allow change in unsupported parameters */
1412         if (key ||
1413             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1414                 return -EOPNOTSUPP;
1415         if (!indir)
1416                 return 0;
1417
1418         num_queues = adapter->rss_queues;
1419
1420         /* Verify user input. */
1421         for (i = 0; i < IGC_RETA_SIZE; i++)
1422                 if (indir[i] >= num_queues)
1423                         return -EINVAL;
1424
1425         for (i = 0; i < IGC_RETA_SIZE; i++)
1426                 adapter->rss_indir_tbl[i] = indir[i];
1427
1428         igc_write_rss_indir_tbl(adapter);
1429
1430         return 0;
1431 }
1432
1433 static void igc_ethtool_get_channels(struct net_device *netdev,
1434                                      struct ethtool_channels *ch)
1435 {
1436         struct igc_adapter *adapter = netdev_priv(netdev);
1437
1438         /* Report maximum channels */
1439         ch->max_combined = igc_get_max_rss_queues(adapter);
1440
1441         /* Report info for other vector */
1442         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1443                 ch->max_other = NON_Q_VECTORS;
1444                 ch->other_count = NON_Q_VECTORS;
1445         }
1446
1447         ch->combined_count = adapter->rss_queues;
1448 }
1449
1450 static int igc_ethtool_set_channels(struct net_device *netdev,
1451                                     struct ethtool_channels *ch)
1452 {
1453         struct igc_adapter *adapter = netdev_priv(netdev);
1454         unsigned int count = ch->combined_count;
1455         unsigned int max_combined = 0;
1456
1457         /* Verify they are not requesting separate vectors */
1458         if (!count || ch->rx_count || ch->tx_count)
1459                 return -EINVAL;
1460
1461         /* Verify other_count is valid and has not been changed */
1462         if (ch->other_count != NON_Q_VECTORS)
1463                 return -EINVAL;
1464
1465         /* Verify the number of channels doesn't exceed hw limits */
1466         max_combined = igc_get_max_rss_queues(adapter);
1467         if (count > max_combined)
1468                 return -EINVAL;
1469
1470         if (count != adapter->rss_queues) {
1471                 adapter->rss_queues = count;
1472                 igc_set_flag_queue_pairs(adapter, max_combined);
1473
1474                 /* Hardware has to reinitialize queues and interrupts to
1475                  * match the new configuration.
1476                  */
1477                 return igc_reinit_queues(adapter);
1478         }
1479
1480         return 0;
1481 }
1482
1483 static int igc_ethtool_get_ts_info(struct net_device *dev,
1484                                    struct ethtool_ts_info *info)
1485 {
1486         struct igc_adapter *adapter = netdev_priv(dev);
1487
1488         if (adapter->ptp_clock)
1489                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1490         else
1491                 info->phc_index = -1;
1492
1493         switch (adapter->hw.mac.type) {
1494         case igc_i225:
1495                 info->so_timestamping =
1496                         SOF_TIMESTAMPING_TX_SOFTWARE |
1497                         SOF_TIMESTAMPING_RX_SOFTWARE |
1498                         SOF_TIMESTAMPING_SOFTWARE |
1499                         SOF_TIMESTAMPING_TX_HARDWARE |
1500                         SOF_TIMESTAMPING_RX_HARDWARE |
1501                         SOF_TIMESTAMPING_RAW_HARDWARE;
1502
1503                 info->tx_types =
1504                         BIT(HWTSTAMP_TX_OFF) |
1505                         BIT(HWTSTAMP_TX_ON);
1506
1507                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1508                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1509
1510                 return 0;
1511         default:
1512                 return -EOPNOTSUPP;
1513         }
1514 }
1515
1516 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1517 {
1518         struct igc_adapter *adapter = netdev_priv(netdev);
1519         u32 priv_flags = 0;
1520
1521         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1522                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1523
1524         return priv_flags;
1525 }
1526
1527 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1528 {
1529         struct igc_adapter *adapter = netdev_priv(netdev);
1530         unsigned int flags = adapter->flags;
1531
1532         flags &= ~IGC_FLAG_RX_LEGACY;
1533         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1534                 flags |= IGC_FLAG_RX_LEGACY;
1535
1536         if (flags != adapter->flags) {
1537                 adapter->flags = flags;
1538
1539                 /* reset interface to repopulate queues */
1540                 if (netif_running(netdev))
1541                         igc_reinit_locked(adapter);
1542         }
1543
1544         return 0;
1545 }
1546
1547 static int igc_ethtool_get_eee(struct net_device *netdev,
1548                                struct ethtool_eee *edata)
1549 {
1550         struct igc_adapter *adapter = netdev_priv(netdev);
1551         struct igc_hw *hw = &adapter->hw;
1552         u32 eeer;
1553
1554         if (hw->dev_spec._base.eee_enable)
1555                 edata->advertised =
1556                         mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1557
1558         *edata = adapter->eee;
1559         edata->supported = SUPPORTED_Autoneg;
1560
1561         eeer = rd32(IGC_EEER);
1562
1563         /* EEE status on negotiated link */
1564         if (eeer & IGC_EEER_EEE_NEG)
1565                 edata->eee_active = true;
1566
1567         if (eeer & IGC_EEER_TX_LPI_EN)
1568                 edata->tx_lpi_enabled = true;
1569
1570         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1571
1572         edata->advertised = SUPPORTED_Autoneg;
1573         edata->lp_advertised = SUPPORTED_Autoneg;
1574
1575         /* Report correct negotiated EEE status for devices that
1576          * wrongly report EEE at half-duplex
1577          */
1578         if (adapter->link_duplex == HALF_DUPLEX) {
1579                 edata->eee_enabled = false;
1580                 edata->eee_active = false;
1581                 edata->tx_lpi_enabled = false;
1582                 edata->advertised &= ~edata->advertised;
1583         }
1584
1585         return 0;
1586 }
1587
1588 static int igc_ethtool_set_eee(struct net_device *netdev,
1589                                struct ethtool_eee *edata)
1590 {
1591         struct igc_adapter *adapter = netdev_priv(netdev);
1592         struct igc_hw *hw = &adapter->hw;
1593         struct ethtool_eee eee_curr;
1594         s32 ret_val;
1595
1596         memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1597
1598         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1599         if (ret_val) {
1600                 netdev_err(netdev,
1601                            "Problem setting EEE advertisement options\n");
1602                 return -EINVAL;
1603         }
1604
1605         if (eee_curr.eee_enabled) {
1606                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1607                         netdev_err(netdev,
1608                                    "Setting EEE tx-lpi is not supported\n");
1609                         return -EINVAL;
1610                 }
1611
1612                 /* Tx LPI timer is not implemented currently */
1613                 if (edata->tx_lpi_timer) {
1614                         netdev_err(netdev,
1615                                    "Setting EEE Tx LPI timer is not supported\n");
1616                         return -EINVAL;
1617                 }
1618         } else if (!edata->eee_enabled) {
1619                 netdev_err(netdev,
1620                            "Setting EEE options are not supported with EEE disabled\n");
1621                 return -EINVAL;
1622         }
1623
1624         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1625         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1626                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1627                 adapter->flags |= IGC_FLAG_EEE;
1628
1629                 /* reset link */
1630                 if (netif_running(netdev))
1631                         igc_reinit_locked(adapter);
1632                 else
1633                         igc_reset(adapter);
1634         }
1635
1636         return 0;
1637 }
1638
1639 static int igc_ethtool_begin(struct net_device *netdev)
1640 {
1641         struct igc_adapter *adapter = netdev_priv(netdev);
1642
1643         pm_runtime_get_sync(&adapter->pdev->dev);
1644         return 0;
1645 }
1646
1647 static void igc_ethtool_complete(struct net_device *netdev)
1648 {
1649         struct igc_adapter *adapter = netdev_priv(netdev);
1650
1651         pm_runtime_put(&adapter->pdev->dev);
1652 }
1653
1654 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1655                                           struct ethtool_link_ksettings *cmd)
1656 {
1657         struct igc_adapter *adapter = netdev_priv(netdev);
1658         struct igc_hw *hw = &adapter->hw;
1659         u32 status;
1660         u32 speed;
1661
1662         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1663         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1664
1665         /* supported link modes */
1666         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1667         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1668         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1669         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1670         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1671         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1672
1673         /* twisted pair */
1674         cmd->base.port = PORT_TP;
1675         cmd->base.phy_address = hw->phy.addr;
1676
1677         /* advertising link modes */
1678         if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1679                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1680         if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1681                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1682         if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1683                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1684         if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1685                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1686         if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1687                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1688         if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1689                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1690
1691         /* set autoneg settings */
1692         if (hw->mac.autoneg == 1) {
1693                 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1694                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1695                                                      Autoneg);
1696         }
1697
1698         switch (hw->fc.requested_mode) {
1699         case igc_fc_full:
1700                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1701                 break;
1702         case igc_fc_rx_pause:
1703                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1704                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1705                                                      Asym_Pause);
1706                 break;
1707         case igc_fc_tx_pause:
1708                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1709                                                      Asym_Pause);
1710                 break;
1711         default:
1712                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1713                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1714                                                      Asym_Pause);
1715         }
1716
1717         status = rd32(IGC_STATUS);
1718
1719         if (status & IGC_STATUS_LU) {
1720                 if (status & IGC_STATUS_SPEED_1000) {
1721                         /* For I225, STATUS will indicate 1G speed in both
1722                          * 1 Gbps and 2.5 Gbps link modes.
1723                          * An additional bit is used
1724                          * to differentiate between 1 Gbps and 2.5 Gbps.
1725                          */
1726                         if (hw->mac.type == igc_i225 &&
1727                             (status & IGC_STATUS_SPEED_2500)) {
1728                                 speed = SPEED_2500;
1729                         } else {
1730                                 speed = SPEED_1000;
1731                         }
1732                 } else if (status & IGC_STATUS_SPEED_100) {
1733                         speed = SPEED_100;
1734                 } else {
1735                         speed = SPEED_10;
1736                 }
1737                 if ((status & IGC_STATUS_FD) ||
1738                     hw->phy.media_type != igc_media_type_copper)
1739                         cmd->base.duplex = DUPLEX_FULL;
1740                 else
1741                         cmd->base.duplex = DUPLEX_HALF;
1742         } else {
1743                 speed = SPEED_UNKNOWN;
1744                 cmd->base.duplex = DUPLEX_UNKNOWN;
1745         }
1746         cmd->base.speed = speed;
1747         if (hw->mac.autoneg)
1748                 cmd->base.autoneg = AUTONEG_ENABLE;
1749         else
1750                 cmd->base.autoneg = AUTONEG_DISABLE;
1751
1752         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1753         if (hw->phy.media_type == igc_media_type_copper)
1754                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1755                                                       ETH_TP_MDI;
1756         else
1757                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1758
1759         if (hw->phy.mdix == AUTO_ALL_MODES)
1760                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1761         else
1762                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1763
1764         return 0;
1765 }
1766
1767 static int
1768 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1769                                const struct ethtool_link_ksettings *cmd)
1770 {
1771         struct igc_adapter *adapter = netdev_priv(netdev);
1772         struct net_device *dev = adapter->netdev;
1773         struct igc_hw *hw = &adapter->hw;
1774         u32 advertising;
1775
1776         /* When adapter in resetting mode, autoneg/speed/duplex
1777          * cannot be changed
1778          */
1779         if (igc_check_reset_block(hw)) {
1780                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1781                 return -EINVAL;
1782         }
1783
1784         /* MDI setting is only allowed when autoneg enabled because
1785          * some hardware doesn't allow MDI setting when speed or
1786          * duplex is forced.
1787          */
1788         if (cmd->base.eth_tp_mdix_ctrl) {
1789                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1790                     cmd->base.autoneg != AUTONEG_ENABLE) {
1791                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1792                         return -EINVAL;
1793                 }
1794         }
1795
1796         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1797                 usleep_range(1000, 2000);
1798
1799         ethtool_convert_link_mode_to_legacy_u32(&advertising,
1800                                                 cmd->link_modes.advertising);
1801         /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
1802          * We have to check this and convert it to ADVERTISE_2500_FULL
1803          * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
1804          */
1805         if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
1806                 advertising |= ADVERTISE_2500_FULL;
1807
1808         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1809                 hw->mac.autoneg = 1;
1810                 hw->phy.autoneg_advertised = advertising;
1811                 if (adapter->fc_autoneg)
1812                         hw->fc.requested_mode = igc_fc_default;
1813         } else {
1814                 netdev_info(dev, "Force mode currently not supported\n");
1815         }
1816
1817         /* MDI-X => 2; MDI => 1; Auto => 3 */
1818         if (cmd->base.eth_tp_mdix_ctrl) {
1819                 /* fix up the value for auto (3 => 0) as zero is mapped
1820                  * internally to auto
1821                  */
1822                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1823                         hw->phy.mdix = AUTO_ALL_MODES;
1824                 else
1825                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1826         }
1827
1828         /* reset the link */
1829         if (netif_running(adapter->netdev)) {
1830                 igc_down(adapter);
1831                 igc_up(adapter);
1832         } else {
1833                 igc_reset(adapter);
1834         }
1835
1836         clear_bit(__IGC_RESETTING, &adapter->state);
1837
1838         return 0;
1839 }
1840
1841 static void igc_ethtool_diag_test(struct net_device *netdev,
1842                                   struct ethtool_test *eth_test, u64 *data)
1843 {
1844         struct igc_adapter *adapter = netdev_priv(netdev);
1845         bool if_running = netif_running(netdev);
1846
1847         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1848                 netdev_info(adapter->netdev, "Offline testing starting");
1849                 set_bit(__IGC_TESTING, &adapter->state);
1850
1851                 /* Link test performed before hardware reset so autoneg doesn't
1852                  * interfere with test result
1853                  */
1854                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1855                         eth_test->flags |= ETH_TEST_FL_FAILED;
1856
1857                 if (if_running)
1858                         igc_close(netdev);
1859                 else
1860                         igc_reset(adapter);
1861
1862                 netdev_info(adapter->netdev, "Register testing starting");
1863                 if (!igc_reg_test(adapter, &data[TEST_REG]))
1864                         eth_test->flags |= ETH_TEST_FL_FAILED;
1865
1866                 igc_reset(adapter);
1867
1868                 netdev_info(adapter->netdev, "EEPROM testing starting");
1869                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1870                         eth_test->flags |= ETH_TEST_FL_FAILED;
1871
1872                 igc_reset(adapter);
1873
1874                 /* loopback and interrupt tests
1875                  * will be implemented in the future
1876                  */
1877                 data[TEST_LOOP] = 0;
1878                 data[TEST_IRQ] = 0;
1879
1880                 clear_bit(__IGC_TESTING, &adapter->state);
1881                 if (if_running)
1882                         igc_open(netdev);
1883         } else {
1884                 netdev_info(adapter->netdev, "Online testing starting");
1885
1886                 /* register, eeprom, intr and loopback tests not run online */
1887                 data[TEST_REG] = 0;
1888                 data[TEST_EEP] = 0;
1889                 data[TEST_IRQ] = 0;
1890                 data[TEST_LOOP] = 0;
1891
1892                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1893                         eth_test->flags |= ETH_TEST_FL_FAILED;
1894         }
1895
1896         msleep_interruptible(4 * 1000);
1897 }
1898
1899 static const struct ethtool_ops igc_ethtool_ops = {
1900         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1901         .get_drvinfo            = igc_ethtool_get_drvinfo,
1902         .get_regs_len           = igc_ethtool_get_regs_len,
1903         .get_regs               = igc_ethtool_get_regs,
1904         .get_wol                = igc_ethtool_get_wol,
1905         .set_wol                = igc_ethtool_set_wol,
1906         .get_msglevel           = igc_ethtool_get_msglevel,
1907         .set_msglevel           = igc_ethtool_set_msglevel,
1908         .nway_reset             = igc_ethtool_nway_reset,
1909         .get_link               = igc_ethtool_get_link,
1910         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
1911         .get_eeprom             = igc_ethtool_get_eeprom,
1912         .set_eeprom             = igc_ethtool_set_eeprom,
1913         .get_ringparam          = igc_ethtool_get_ringparam,
1914         .set_ringparam          = igc_ethtool_set_ringparam,
1915         .get_pauseparam         = igc_ethtool_get_pauseparam,
1916         .set_pauseparam         = igc_ethtool_set_pauseparam,
1917         .get_strings            = igc_ethtool_get_strings,
1918         .get_sset_count         = igc_ethtool_get_sset_count,
1919         .get_ethtool_stats      = igc_ethtool_get_stats,
1920         .get_coalesce           = igc_ethtool_get_coalesce,
1921         .set_coalesce           = igc_ethtool_set_coalesce,
1922         .get_rxnfc              = igc_ethtool_get_rxnfc,
1923         .set_rxnfc              = igc_ethtool_set_rxnfc,
1924         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
1925         .get_rxfh               = igc_ethtool_get_rxfh,
1926         .set_rxfh               = igc_ethtool_set_rxfh,
1927         .get_ts_info            = igc_ethtool_get_ts_info,
1928         .get_channels           = igc_ethtool_get_channels,
1929         .set_channels           = igc_ethtool_set_channels,
1930         .get_priv_flags         = igc_ethtool_get_priv_flags,
1931         .set_priv_flags         = igc_ethtool_set_priv_flags,
1932         .get_eee                = igc_ethtool_get_eee,
1933         .set_eee                = igc_ethtool_set_eee,
1934         .begin                  = igc_ethtool_begin,
1935         .complete               = igc_ethtool_complete,
1936         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
1937         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
1938         .self_test              = igc_ethtool_diag_test,
1939 };
1940
1941 void igc_ethtool_set_ops(struct net_device *netdev)
1942 {
1943         netdev->ethtool_ops = &igc_ethtool_ops;
1944 }