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         struct igc_hw *hw = &adapter->hw;
 133         u16 nvm_version = 0;
 134         u16 gphy_version;
 135
 136         strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
 137
 138         /* NVM image version is reported as firmware version for i225 device */
 139         hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
 140
 141         /* gPHY firmware version is reported as PHY FW version */
 142         gphy_version = igc_read_phy_fw_version(hw);
 143
 144         scnprintf(adapter->fw_version,
 145                   sizeof(adapter->fw_version),
 146                   "%x:%x",
 147                   nvm_version,
 148                   gphy_version);
 149
 150         strscpy(drvinfo->fw_version, adapter->fw_version,
 151                 sizeof(drvinfo->fw_version));
 152
 153         strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
 154                 sizeof(drvinfo->bus_info));
 155
 156         drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
 157 }
 158
 159 static int igc_ethtool_get_regs_len(struct net_device *netdev)
 160 {
 161         return IGC_REGS_LEN * sizeof(u32);
 162 }
 163
 164 static void igc_ethtool_get_regs(struct net_device *netdev,
 165                                  struct ethtool_regs *regs, void *p)
 166 {
 167         struct igc_adapter *adapter = netdev_priv(netdev);
 168         struct igc_hw *hw = &adapter->hw;
 169         u32 *regs_buff = p;
 170         u8 i;
 171
 172         memset(p, 0, IGC_REGS_LEN * sizeof(u32));
 173
 174         regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
 175
 176         /* General Registers */
 177         regs_buff[0] = rd32(IGC_CTRL);
 178         regs_buff[1] = rd32(IGC_STATUS);
 179         regs_buff[2] = rd32(IGC_CTRL_EXT);
 180         regs_buff[3] = rd32(IGC_MDIC);
 181         regs_buff[4] = rd32(IGC_CONNSW);
 182
 183         /* NVM Register */
 184         regs_buff[5] = rd32(IGC_EECD);
 185
 186         /* Interrupt */
 187         /* Reading EICS for EICR because they read the
 188          * same but EICS does not clear on read
 189          */
 190         regs_buff[6] = rd32(IGC_EICS);
 191         regs_buff[7] = rd32(IGC_EICS);
 192         regs_buff[8] = rd32(IGC_EIMS);
 193         regs_buff[9] = rd32(IGC_EIMC);
 194         regs_buff[10] = rd32(IGC_EIAC);
 195         regs_buff[11] = rd32(IGC_EIAM);
 196         /* Reading ICS for ICR because they read the
 197          * same but ICS does not clear on read
 198          */
 199         regs_buff[12] = rd32(IGC_ICS);
 200         regs_buff[13] = rd32(IGC_ICS);
 201         regs_buff[14] = rd32(IGC_IMS);
 202         regs_buff[15] = rd32(IGC_IMC);
 203         regs_buff[16] = rd32(IGC_IAC);
 204         regs_buff[17] = rd32(IGC_IAM);
 205
 206         /* Flow Control */
 207         regs_buff[18] = rd32(IGC_FCAL);
 208         regs_buff[19] = rd32(IGC_FCAH);
 209         regs_buff[20] = rd32(IGC_FCTTV);
 210         regs_buff[21] = rd32(IGC_FCRTL);
 211         regs_buff[22] = rd32(IGC_FCRTH);
 212         regs_buff[23] = rd32(IGC_FCRTV);
 213
 214         /* Receive */
 215         regs_buff[24] = rd32(IGC_RCTL);
 216         regs_buff[25] = rd32(IGC_RXCSUM);
 217         regs_buff[26] = rd32(IGC_RLPML);
 218         regs_buff[27] = rd32(IGC_RFCTL);
 219
 220         /* Transmit */
 221         regs_buff[28] = rd32(IGC_TCTL);
 222         regs_buff[29] = rd32(IGC_TIPG);
 223
 224         /* Wake Up */
 225
 226         /* MAC */
 227
 228         /* Statistics */
 229         regs_buff[30] = adapter->stats.crcerrs;
 230         regs_buff[31] = adapter->stats.algnerrc;
 231         regs_buff[32] = adapter->stats.symerrs;
 232         regs_buff[33] = adapter->stats.rxerrc;
 233         regs_buff[34] = adapter->stats.mpc;
 234         regs_buff[35] = adapter->stats.scc;
 235         regs_buff[36] = adapter->stats.ecol;
 236         regs_buff[37] = adapter->stats.mcc;
 237         regs_buff[38] = adapter->stats.latecol;
 238         regs_buff[39] = adapter->stats.colc;
 239         regs_buff[40] = adapter->stats.dc;
 240         regs_buff[41] = adapter->stats.tncrs;
 241         regs_buff[42] = adapter->stats.sec;
 242         regs_buff[43] = adapter->stats.htdpmc;
 243         regs_buff[44] = adapter->stats.rlec;
 244         regs_buff[45] = adapter->stats.xonrxc;
 245         regs_buff[46] = adapter->stats.xontxc;
 246         regs_buff[47] = adapter->stats.xoffrxc;
 247         regs_buff[48] = adapter->stats.xofftxc;
 248         regs_buff[49] = adapter->stats.fcruc;
 249         regs_buff[50] = adapter->stats.prc64;
 250         regs_buff[51] = adapter->stats.prc127;
 251         regs_buff[52] = adapter->stats.prc255;
 252         regs_buff[53] = adapter->stats.prc511;
 253         regs_buff[54] = adapter->stats.prc1023;
 254         regs_buff[55] = adapter->stats.prc1522;
 255         regs_buff[56] = adapter->stats.gprc;
 256         regs_buff[57] = adapter->stats.bprc;
 257         regs_buff[58] = adapter->stats.mprc;
 258         regs_buff[59] = adapter->stats.gptc;
 259         regs_buff[60] = adapter->stats.gorc;
 260         regs_buff[61] = adapter->stats.gotc;
 261         regs_buff[62] = adapter->stats.rnbc;
 262         regs_buff[63] = adapter->stats.ruc;
 263         regs_buff[64] = adapter->stats.rfc;
 264         regs_buff[65] = adapter->stats.roc;
 265         regs_buff[66] = adapter->stats.rjc;
 266         regs_buff[67] = adapter->stats.mgprc;
 267         regs_buff[68] = adapter->stats.mgpdc;
 268         regs_buff[69] = adapter->stats.mgptc;
 269         regs_buff[70] = adapter->stats.tor;
 270         regs_buff[71] = adapter->stats.tot;
 271         regs_buff[72] = adapter->stats.tpr;
 272         regs_buff[73] = adapter->stats.tpt;
 273         regs_buff[74] = adapter->stats.ptc64;
 274         regs_buff[75] = adapter->stats.ptc127;
 275         regs_buff[76] = adapter->stats.ptc255;
 276         regs_buff[77] = adapter->stats.ptc511;
 277         regs_buff[78] = adapter->stats.ptc1023;
 278         regs_buff[79] = adapter->stats.ptc1522;
 279         regs_buff[80] = adapter->stats.mptc;
 280         regs_buff[81] = adapter->stats.bptc;
 281         regs_buff[82] = adapter->stats.tsctc;
 282         regs_buff[83] = adapter->stats.iac;
 283         regs_buff[84] = adapter->stats.rpthc;
 284         regs_buff[85] = adapter->stats.hgptc;
 285         regs_buff[86] = adapter->stats.hgorc;
 286         regs_buff[87] = adapter->stats.hgotc;
 287         regs_buff[88] = adapter->stats.lenerrs;
 288         regs_buff[89] = adapter->stats.scvpc;
 289         regs_buff[90] = adapter->stats.hrmpc;
 290
 291         for (i = 0; i < 4; i++)
 292                 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
 293         for (i = 0; i < 4; i++)
 294                 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
 295         for (i = 0; i < 4; i++)
 296                 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
 297         for (i = 0; i < 4; i++)
 298                 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
 299         for (i = 0; i < 4; i++)
 300                 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
 301         for (i = 0; i < 4; i++)
 302                 regs_buff[111 + i] = rd32(IGC_RDH(i));
 303         for (i = 0; i < 4; i++)
 304                 regs_buff[115 + i] = rd32(IGC_RDT(i));
 305         for (i = 0; i < 4; i++)
 306                 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
 307
 308         for (i = 0; i < 10; i++)
 309                 regs_buff[123 + i] = rd32(IGC_EITR(i));
 310         for (i = 0; i < 16; i++)
 311                 regs_buff[139 + i] = rd32(IGC_RAL(i));
 312         for (i = 0; i < 16; i++)
 313                 regs_buff[145 + i] = rd32(IGC_RAH(i));
 314
 315         for (i = 0; i < 4; i++)
 316                 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
 317         for (i = 0; i < 4; i++)
 318                 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
 319         for (i = 0; i < 4; i++)
 320                 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
 321         for (i = 0; i < 4; i++)
 322                 regs_buff[160 + i] = rd32(IGC_TDH(i));
 323         for (i = 0; i < 4; i++)
 324                 regs_buff[164 + i] = rd32(IGC_TDT(i));
 325         for (i = 0; i < 4; i++)
 326                 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
 327
 328         /* XXX: Due to a bug few lines above, RAL and RAH registers are
 329          * overwritten. To preserve the ABI, we write these registers again in
 330          * regs_buff.
 331          */
 332         for (i = 0; i < 16; i++)
 333                 regs_buff[172 + i] = rd32(IGC_RAL(i));
 334         for (i = 0; i < 16; i++)
 335                 regs_buff[188 + i] = rd32(IGC_RAH(i));
 336
 337         regs_buff[204] = rd32(IGC_VLANPQF);
 338
 339         for (i = 0; i < 8; i++)
 340                 regs_buff[205 + i] = rd32(IGC_ETQF(i));
 341
 342         regs_buff[213] = adapter->stats.tlpic;
 343         regs_buff[214] = adapter->stats.rlpic;
 344 }
 345
 346 static void igc_ethtool_get_wol(struct net_device *netdev,
 347                                 struct ethtool_wolinfo *wol)
 348 {
 349         struct igc_adapter *adapter = netdev_priv(netdev);
 350
 351         wol->wolopts = 0;
 352
 353         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 354                 return;
 355
 356         wol->supported = WAKE_UCAST | WAKE_MCAST |
 357                          WAKE_BCAST | WAKE_MAGIC |
 358                          WAKE_PHY;
 359
 360         /* apply any specific unsupported masks here */
 361         switch (adapter->hw.device_id) {
 362         default:
 363                 break;
 364         }
 365
 366         if (adapter->wol & IGC_WUFC_EX)
 367                 wol->wolopts |= WAKE_UCAST;
 368         if (adapter->wol & IGC_WUFC_MC)
 369                 wol->wolopts |= WAKE_MCAST;
 370         if (adapter->wol & IGC_WUFC_BC)
 371                 wol->wolopts |= WAKE_BCAST;
 372         if (adapter->wol & IGC_WUFC_MAG)
 373                 wol->wolopts |= WAKE_MAGIC;
 374         if (adapter->wol & IGC_WUFC_LNKC)
 375                 wol->wolopts |= WAKE_PHY;
 376 }
 377
 378 static int igc_ethtool_set_wol(struct net_device *netdev,
 379                                struct ethtool_wolinfo *wol)
 380 {
 381         struct igc_adapter *adapter = netdev_priv(netdev);
 382
 383         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
 384                 return -EOPNOTSUPP;
 385
 386         if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
 387                 return wol->wolopts ? -EOPNOTSUPP : 0;
 388
 389         /* these settings will always override what we currently have */
 390         adapter->wol = 0;
 391
 392         if (wol->wolopts & WAKE_UCAST)
 393                 adapter->wol |= IGC_WUFC_EX;
 394         if (wol->wolopts & WAKE_MCAST)
 395                 adapter->wol |= IGC_WUFC_MC;
 396         if (wol->wolopts & WAKE_BCAST)
 397                 adapter->wol |= IGC_WUFC_BC;
 398         if (wol->wolopts & WAKE_MAGIC)
 399                 adapter->wol |= IGC_WUFC_MAG;
 400         if (wol->wolopts & WAKE_PHY)
 401                 adapter->wol |= IGC_WUFC_LNKC;
 402         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 403
 404         return 0;
 405 }
 406
 407 static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
 408 {
 409         struct igc_adapter *adapter = netdev_priv(netdev);
 410
 411         return adapter->msg_enable;
 412 }
 413
 414 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
 415 {
 416         struct igc_adapter *adapter = netdev_priv(netdev);
 417
 418         adapter->msg_enable = data;
 419 }
 420
 421 static int igc_ethtool_nway_reset(struct net_device *netdev)
 422 {
 423         struct igc_adapter *adapter = netdev_priv(netdev);
 424
 425         if (netif_running(netdev))
 426                 igc_reinit_locked(adapter);
 427         return 0;
 428 }
 429
 430 static u32 igc_ethtool_get_link(struct net_device *netdev)
 431 {
 432         struct igc_adapter *adapter = netdev_priv(netdev);
 433         struct igc_mac_info *mac = &adapter->hw.mac;
 434
 435         /* If the link is not reported up to netdev, interrupts are disabled,
 436          * and so the physical link state may have changed since we last
 437          * looked. Set get_link_status to make sure that the true link
 438          * state is interrogated, rather than pulling a cached and possibly
 439          * stale link state from the driver.
 440          */
 441         if (!netif_carrier_ok(netdev))
 442                 mac->get_link_status = 1;
 443
 444         return igc_has_link(adapter);
 445 }
 446
 447 static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
 448 {
 449         struct igc_adapter *adapter = netdev_priv(netdev);
 450
 451         return adapter->hw.nvm.word_size * 2;
 452 }
 453
 454 static int igc_ethtool_get_eeprom(struct net_device *netdev,
 455                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 456 {
 457         struct igc_adapter *adapter = netdev_priv(netdev);
 458         struct igc_hw *hw = &adapter->hw;
 459         int first_word, last_word;
 460         u16 *eeprom_buff;
 461         int ret_val = 0;
 462         u16 i;
 463
 464         if (eeprom->len == 0)
 465                 return -EINVAL;
 466
 467         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 468
 469         first_word = eeprom->offset >> 1;
 470         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 471
 472         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 473                                     GFP_KERNEL);
 474         if (!eeprom_buff)
 475                 return -ENOMEM;
 476
 477         if (hw->nvm.type == igc_nvm_eeprom_spi) {
 478                 ret_val = hw->nvm.ops.read(hw, first_word,
 479                                            last_word - first_word + 1,
 480                                            eeprom_buff);
 481         } else {
 482                 for (i = 0; i < last_word - first_word + 1; i++) {
 483                         ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 484                                                    &eeprom_buff[i]);
 485                         if (ret_val)
 486                                 break;
 487                 }
 488         }
 489
 490         /* Device's eeprom is always little-endian, word addressable */
 491         for (i = 0; i < last_word - first_word + 1; i++)
 492                 le16_to_cpus(&eeprom_buff[i]);
 493
 494         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 495                eeprom->len);
 496         kfree(eeprom_buff);
 497
 498         return ret_val;
 499 }
 500
 501 static int igc_ethtool_set_eeprom(struct net_device *netdev,
 502                                   struct ethtool_eeprom *eeprom, u8 *bytes)
 503 {
 504         struct igc_adapter *adapter = netdev_priv(netdev);
 505         struct igc_hw *hw = &adapter->hw;
 506         int max_len, first_word, last_word, ret_val = 0;
 507         u16 *eeprom_buff;
 508         void *ptr;
 509         u16 i;
 510
 511         if (eeprom->len == 0)
 512                 return -EOPNOTSUPP;
 513
 514         if (hw->mac.type >= igc_i225 &&
 515             !igc_get_flash_presence_i225(hw)) {
 516                 return -EOPNOTSUPP;
 517         }
 518
 519         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 520                 return -EFAULT;
 521
 522         max_len = hw->nvm.word_size * 2;
 523
 524         first_word = eeprom->offset >> 1;
 525         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 526         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 527         if (!eeprom_buff)
 528                 return -ENOMEM;
 529
 530         ptr = (void *)eeprom_buff;
 531
 532         if (eeprom->offset & 1) {
 533                 /* need read/modify/write of first changed EEPROM word
 534                  * only the second byte of the word is being modified
 535                  */
 536                 ret_val = hw->nvm.ops.read(hw, first_word, 1,
 537                                             &eeprom_buff[0]);
 538                 ptr++;
 539         }
 540         if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
 541                 /* need read/modify/write of last changed EEPROM word
 542                  * only the first byte of the word is being modified
 543                  */
 544                 ret_val = hw->nvm.ops.read(hw, last_word, 1,
 545                                    &eeprom_buff[last_word - first_word]);
 546         }
 547
 548         /* Device's eeprom is always little-endian, word addressable */
 549         for (i = 0; i < last_word - first_word + 1; i++)
 550                 le16_to_cpus(&eeprom_buff[i]);
 551
 552         memcpy(ptr, bytes, eeprom->len);
 553
 554         for (i = 0; i < last_word - first_word + 1; i++)
 555                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 556
 557         ret_val = hw->nvm.ops.write(hw, first_word,
 558                                     last_word - first_word + 1, eeprom_buff);
 559
 560         /* Update the checksum if nvm write succeeded */
 561         if (ret_val == 0)
 562                 hw->nvm.ops.update(hw);
 563
 564         kfree(eeprom_buff);
 565         return ret_val;
 566 }
 567
 568 static void igc_ethtool_get_ringparam(struct net_device *netdev,
 569                                       struct ethtool_ringparam *ring)
 570 {
 571         struct igc_adapter *adapter = netdev_priv(netdev);
 572
 573         ring->rx_max_pending = IGC_MAX_RXD;
 574         ring->tx_max_pending = IGC_MAX_TXD;
 575         ring->rx_pending = adapter->rx_ring_count;
 576         ring->tx_pending = adapter->tx_ring_count;
 577 }
 578
 579 static int igc_ethtool_set_ringparam(struct net_device *netdev,
 580                                      struct ethtool_ringparam *ring)
 581 {
 582         struct igc_adapter *adapter = netdev_priv(netdev);
 583         struct igc_ring *temp_ring;
 584         u16 new_rx_count, new_tx_count;
 585         int i, err = 0;
 586
 587         if (ring->rx_mini_pending || ring->rx_jumbo_pending)
 588                 return -EINVAL;
 589
 590         new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
 591         new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
 592         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 593
 594         new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
 595         new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
 596         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 597
 598         if (new_tx_count == adapter->tx_ring_count &&
 599             new_rx_count == adapter->rx_ring_count) {
 600                 /* nothing to do */
 601                 return 0;
 602         }
 603
 604         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 605                 usleep_range(1000, 2000);
 606
 607         if (!netif_running(adapter->netdev)) {
 608                 for (i = 0; i < adapter->num_tx_queues; i++)
 609                         adapter->tx_ring[i]->count = new_tx_count;
 610                 for (i = 0; i < adapter->num_rx_queues; i++)
 611                         adapter->rx_ring[i]->count = new_rx_count;
 612                 adapter->tx_ring_count = new_tx_count;
 613                 adapter->rx_ring_count = new_rx_count;
 614                 goto clear_reset;
 615         }
 616
 617         if (adapter->num_tx_queues > adapter->num_rx_queues)
 618                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 619                                                adapter->num_tx_queues));
 620         else
 621                 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
 622                                                adapter->num_rx_queues));
 623
 624         if (!temp_ring) {
 625                 err = -ENOMEM;
 626                 goto clear_reset;
 627         }
 628
 629         igc_down(adapter);
 630
 631         /* We can't just free everything and then setup again,
 632          * because the ISRs in MSI-X mode get passed pointers
 633          * to the Tx and Rx ring structs.
 634          */
 635         if (new_tx_count != adapter->tx_ring_count) {
 636                 for (i = 0; i < adapter->num_tx_queues; i++) {
 637                         memcpy(&temp_ring[i], adapter->tx_ring[i],
 638                                sizeof(struct igc_ring));
 639
 640                         temp_ring[i].count = new_tx_count;
 641                         err = igc_setup_tx_resources(&temp_ring[i]);
 642                         if (err) {
 643                                 while (i) {
 644                                         i--;
 645                                         igc_free_tx_resources(&temp_ring[i]);
 646                                 }
 647                                 goto err_setup;
 648                         }
 649                 }
 650
 651                 for (i = 0; i < adapter->num_tx_queues; i++) {
 652                         igc_free_tx_resources(adapter->tx_ring[i]);
 653
 654                         memcpy(adapter->tx_ring[i], &temp_ring[i],
 655                                sizeof(struct igc_ring));
 656                 }
 657
 658                 adapter->tx_ring_count = new_tx_count;
 659         }
 660
 661         if (new_rx_count != adapter->rx_ring_count) {
 662                 for (i = 0; i < adapter->num_rx_queues; i++) {
 663                         memcpy(&temp_ring[i], adapter->rx_ring[i],
 664                                sizeof(struct igc_ring));
 665
 666                         temp_ring[i].count = new_rx_count;
 667                         err = igc_setup_rx_resources(&temp_ring[i]);
 668                         if (err) {
 669                                 while (i) {
 670                                         i--;
 671                                         igc_free_rx_resources(&temp_ring[i]);
 672                                 }
 673                                 goto err_setup;
 674                         }
 675                 }
 676
 677                 for (i = 0; i < adapter->num_rx_queues; i++) {
 678                         igc_free_rx_resources(adapter->rx_ring[i]);
 679
 680                         memcpy(adapter->rx_ring[i], &temp_ring[i],
 681                                sizeof(struct igc_ring));
 682                 }
 683
 684                 adapter->rx_ring_count = new_rx_count;
 685         }
 686 err_setup:
 687         igc_up(adapter);
 688         vfree(temp_ring);
 689 clear_reset:
 690         clear_bit(__IGC_RESETTING, &adapter->state);
 691         return err;
 692 }
 693
 694 static void igc_ethtool_get_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
 700         pause->autoneg =
 701                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 702
 703         if (hw->fc.current_mode == igc_fc_rx_pause) {
 704                 pause->rx_pause = 1;
 705         } else if (hw->fc.current_mode == igc_fc_tx_pause) {
 706                 pause->tx_pause = 1;
 707         } else if (hw->fc.current_mode == igc_fc_full) {
 708                 pause->rx_pause = 1;
 709                 pause->tx_pause = 1;
 710         }
 711 }
 712
 713 static int igc_ethtool_set_pauseparam(struct net_device *netdev,
 714                                       struct ethtool_pauseparam *pause)
 715 {
 716         struct igc_adapter *adapter = netdev_priv(netdev);
 717         struct igc_hw *hw = &adapter->hw;
 718         int retval = 0;
 719
 720         adapter->fc_autoneg = pause->autoneg;
 721
 722         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 723                 usleep_range(1000, 2000);
 724
 725         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 726                 hw->fc.requested_mode = igc_fc_default;
 727                 if (netif_running(adapter->netdev)) {
 728                         igc_down(adapter);
 729                         igc_up(adapter);
 730                 } else {
 731                         igc_reset(adapter);
 732                 }
 733         } else {
 734                 if (pause->rx_pause && pause->tx_pause)
 735                         hw->fc.requested_mode = igc_fc_full;
 736                 else if (pause->rx_pause && !pause->tx_pause)
 737                         hw->fc.requested_mode = igc_fc_rx_pause;
 738                 else if (!pause->rx_pause && pause->tx_pause)
 739                         hw->fc.requested_mode = igc_fc_tx_pause;
 740                 else if (!pause->rx_pause && !pause->tx_pause)
 741                         hw->fc.requested_mode = igc_fc_none;
 742
 743                 hw->fc.current_mode = hw->fc.requested_mode;
 744
 745                 retval = ((hw->phy.media_type == igc_media_type_copper) ?
 746                           igc_force_mac_fc(hw) : igc_setup_link(hw));
 747         }
 748
 749         clear_bit(__IGC_RESETTING, &adapter->state);
 750         return retval;
 751 }
 752
 753 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
 754                                     u8 *data)
 755 {
 756         struct igc_adapter *adapter = netdev_priv(netdev);
 757         u8 *p = data;
 758         int i;
 759
 760         switch (stringset) {
 761         case ETH_SS_TEST:
 762                 memcpy(data, *igc_gstrings_test,
 763                        IGC_TEST_LEN * ETH_GSTRING_LEN);
 764                 break;
 765         case ETH_SS_STATS:
 766                 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 767                         memcpy(p, igc_gstrings_stats[i].stat_string,
 768                                ETH_GSTRING_LEN);
 769                         p += ETH_GSTRING_LEN;
 770                 }
 771                 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
 772                         memcpy(p, igc_gstrings_net_stats[i].stat_string,
 773                                ETH_GSTRING_LEN);
 774                         p += ETH_GSTRING_LEN;
 775                 }
 776                 for (i = 0; i < adapter->num_tx_queues; i++) {
 777                         sprintf(p, "tx_queue_%u_packets", i);
 778                         p += ETH_GSTRING_LEN;
 779                         sprintf(p, "tx_queue_%u_bytes", i);
 780                         p += ETH_GSTRING_LEN;
 781                         sprintf(p, "tx_queue_%u_restart", i);
 782                         p += ETH_GSTRING_LEN;
 783                 }
 784                 for (i = 0; i < adapter->num_rx_queues; i++) {
 785                         sprintf(p, "rx_queue_%u_packets", i);
 786                         p += ETH_GSTRING_LEN;
 787                         sprintf(p, "rx_queue_%u_bytes", i);
 788                         p += ETH_GSTRING_LEN;
 789                         sprintf(p, "rx_queue_%u_drops", i);
 790                         p += ETH_GSTRING_LEN;
 791                         sprintf(p, "rx_queue_%u_csum_err", i);
 792                         p += ETH_GSTRING_LEN;
 793                         sprintf(p, "rx_queue_%u_alloc_failed", i);
 794                         p += ETH_GSTRING_LEN;
 795                 }
 796                 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
 797                 break;
 798         case ETH_SS_PRIV_FLAGS:
 799                 memcpy(data, igc_priv_flags_strings,
 800                        IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 801                 break;
 802         }
 803 }
 804
 805 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 806 {
 807         switch (sset) {
 808         case ETH_SS_STATS:
 809                 return IGC_STATS_LEN;
 810         case ETH_SS_TEST:
 811                 return IGC_TEST_LEN;
 812         case ETH_SS_PRIV_FLAGS:
 813                 return IGC_PRIV_FLAGS_STR_LEN;
 814         default:
 815                 return -ENOTSUPP;
 816         }
 817 }
 818
 819 static void igc_ethtool_get_stats(struct net_device *netdev,
 820                                   struct ethtool_stats *stats, u64 *data)
 821 {
 822         struct igc_adapter *adapter = netdev_priv(netdev);
 823         struct rtnl_link_stats64 *net_stats = &adapter->stats64;
 824         unsigned int start;
 825         struct igc_ring *ring;
 826         int i, j;
 827         char *p;
 828
 829         spin_lock(&adapter->stats64_lock);
 830         igc_update_stats(adapter);
 831
 832         for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
 833                 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
 834                 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
 835                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 836         }
 837         for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
 838                 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
 839                 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
 840                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 841         }
 842         for (j = 0; j < adapter->num_tx_queues; j++) {
 843                 u64     restart2;
 844
 845                 ring = adapter->tx_ring[j];
 846                 do {
 847                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
 848                         data[i]   = ring->tx_stats.packets;
 849                         data[i + 1] = ring->tx_stats.bytes;
 850                         data[i + 2] = ring->tx_stats.restart_queue;
 851                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
 852                 do {
 853                         start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
 854                         restart2  = ring->tx_stats.restart_queue2;
 855                 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
 856                 data[i + 2] += restart2;
 857
 858                 i += IGC_TX_QUEUE_STATS_LEN;
 859         }
 860         for (j = 0; j < adapter->num_rx_queues; j++) {
 861                 ring = adapter->rx_ring[j];
 862                 do {
 863                         start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
 864                         data[i]   = ring->rx_stats.packets;
 865                         data[i + 1] = ring->rx_stats.bytes;
 866                         data[i + 2] = ring->rx_stats.drops;
 867                         data[i + 3] = ring->rx_stats.csum_err;
 868                         data[i + 4] = ring->rx_stats.alloc_failed;
 869                 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
 870                 i += IGC_RX_QUEUE_STATS_LEN;
 871         }
 872         spin_unlock(&adapter->stats64_lock);
 873 }
 874
 875 static int igc_ethtool_get_coalesce(struct net_device *netdev,
 876                                     struct ethtool_coalesce *ec)
 877 {
 878         struct igc_adapter *adapter = netdev_priv(netdev);
 879
 880         if (adapter->rx_itr_setting <= 3)
 881                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
 882         else
 883                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
 884
 885         if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
 886                 if (adapter->tx_itr_setting <= 3)
 887                         ec->tx_coalesce_usecs = adapter->tx_itr_setting;
 888                 else
 889                         ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
 890         }
 891
 892         return 0;
 893 }
 894
 895 static int igc_ethtool_set_coalesce(struct net_device *netdev,
 896                                     struct ethtool_coalesce *ec)
 897 {
 898         struct igc_adapter *adapter = netdev_priv(netdev);
 899         int i;
 900
 901         if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 902             (ec->rx_coalesce_usecs > 3 &&
 903              ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 904             ec->rx_coalesce_usecs == 2)
 905                 return -EINVAL;
 906
 907         if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
 908             (ec->tx_coalesce_usecs > 3 &&
 909              ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
 910             ec->tx_coalesce_usecs == 2)
 911                 return -EINVAL;
 912
 913         if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
 914                 return -EINVAL;
 915
 916         /* If ITR is disabled, disable DMAC */
 917         if (ec->rx_coalesce_usecs == 0) {
 918                 if (adapter->flags & IGC_FLAG_DMAC)
 919                         adapter->flags &= ~IGC_FLAG_DMAC;
 920         }
 921
 922         /* convert to rate of irq's per second */
 923         if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
 924                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 925         else
 926                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 927
 928         /* convert to rate of irq's per second */
 929         if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
 930                 adapter->tx_itr_setting = adapter->rx_itr_setting;
 931         else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
 932                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 933         else
 934                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 935
 936         for (i = 0; i < adapter->num_q_vectors; i++) {
 937                 struct igc_q_vector *q_vector = adapter->q_vector[i];
 938
 939                 q_vector->tx.work_limit = adapter->tx_work_limit;
 940                 if (q_vector->rx.ring)
 941                         q_vector->itr_val = adapter->rx_itr_setting;
 942                 else
 943                         q_vector->itr_val = adapter->tx_itr_setting;
 944                 if (q_vector->itr_val && q_vector->itr_val <= 3)
 945                         q_vector->itr_val = IGC_START_ITR;
 946                 q_vector->set_itr = 1;
 947         }
 948
 949         return 0;
 950 }
 951
 952 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
 953 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
 954                                     struct ethtool_rxnfc *cmd)
 955 {
 956         struct ethtool_rx_flow_spec *fsp = &cmd->fs;
 957         struct igc_nfc_rule *rule = NULL;
 958
 959         cmd->data = IGC_MAX_RXNFC_RULES;
 960
 961         mutex_lock(&adapter->nfc_rule_lock);
 962
 963         rule = igc_get_nfc_rule(adapter, fsp->location);
 964         if (!rule)
 965                 goto out;
 966
 967         fsp->flow_type = ETHER_FLOW;
 968         fsp->ring_cookie = rule->action;
 969
 970         if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
 971                 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
 972                 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
 973         }
 974
 975         if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
 976                 fsp->flow_type |= FLOW_EXT;
 977                 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
 978                 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
 979         }
 980
 981         if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
 982                 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
 983                                 rule->filter.dst_addr);
 984                 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
 985         }
 986
 987         if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
 988                 ether_addr_copy(fsp->h_u.ether_spec.h_source,
 989                                 rule->filter.src_addr);
 990                 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
 991         }
 992
 993         mutex_unlock(&adapter->nfc_rule_lock);
 994         return 0;
 995
 996 out:
 997         mutex_unlock(&adapter->nfc_rule_lock);
 998         return -EINVAL;
 999 }
1000
1001 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1002                                      struct ethtool_rxnfc *cmd,
1003                                      u32 *rule_locs)
1004 {
1005         struct igc_nfc_rule *rule;
1006         int cnt = 0;
1007
1008         cmd->data = IGC_MAX_RXNFC_RULES;
1009
1010         mutex_lock(&adapter->nfc_rule_lock);
1011
1012         list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1013                 if (cnt == cmd->rule_cnt) {
1014                         mutex_unlock(&adapter->nfc_rule_lock);
1015                         return -EMSGSIZE;
1016                 }
1017                 rule_locs[cnt] = rule->location;
1018                 cnt++;
1019         }
1020
1021         mutex_unlock(&adapter->nfc_rule_lock);
1022
1023         cmd->rule_cnt = cnt;
1024
1025         return 0;
1026 }
1027
1028 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1029                                          struct ethtool_rxnfc *cmd)
1030 {
1031         cmd->data = 0;
1032
1033         /* Report default options for RSS on igc */
1034         switch (cmd->flow_type) {
1035         case TCP_V4_FLOW:
1036                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1037                 fallthrough;
1038         case UDP_V4_FLOW:
1039                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1040                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1041                 fallthrough;
1042         case SCTP_V4_FLOW:
1043         case AH_ESP_V4_FLOW:
1044         case AH_V4_FLOW:
1045         case ESP_V4_FLOW:
1046         case IPV4_FLOW:
1047                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1048                 break;
1049         case TCP_V6_FLOW:
1050                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1051                 fallthrough;
1052         case UDP_V6_FLOW:
1053                 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1054                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1055                 fallthrough;
1056         case SCTP_V6_FLOW:
1057         case AH_ESP_V6_FLOW:
1058         case AH_V6_FLOW:
1059         case ESP_V6_FLOW:
1060         case IPV6_FLOW:
1061                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1062                 break;
1063         default:
1064                 return -EINVAL;
1065         }
1066
1067         return 0;
1068 }
1069
1070 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1071                                  struct ethtool_rxnfc *cmd, u32 *rule_locs)
1072 {
1073         struct igc_adapter *adapter = netdev_priv(dev);
1074
1075         switch (cmd->cmd) {
1076         case ETHTOOL_GRXRINGS:
1077                 cmd->data = adapter->num_rx_queues;
1078                 return 0;
1079         case ETHTOOL_GRXCLSRLCNT:
1080                 cmd->rule_cnt = adapter->nfc_rule_count;
1081                 return 0;
1082         case ETHTOOL_GRXCLSRULE:
1083                 return igc_ethtool_get_nfc_rule(adapter, cmd);
1084         case ETHTOOL_GRXCLSRLALL:
1085                 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1086         case ETHTOOL_GRXFH:
1087                 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1088         default:
1089                 return -EOPNOTSUPP;
1090         }
1091 }
1092
1093 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1094                        IGC_FLAG_RSS_FIELD_IPV6_UDP)
1095 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1096                                         struct ethtool_rxnfc *nfc)
1097 {
1098         u32 flags = adapter->flags;
1099
1100         /* RSS does not support anything other than hashing
1101          * to queues on src and dst IPs and ports
1102          */
1103         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1104                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1105                 return -EINVAL;
1106
1107         switch (nfc->flow_type) {
1108         case TCP_V4_FLOW:
1109         case TCP_V6_FLOW:
1110                 if (!(nfc->data & RXH_IP_SRC) ||
1111                     !(nfc->data & RXH_IP_DST) ||
1112                     !(nfc->data & RXH_L4_B_0_1) ||
1113                     !(nfc->data & RXH_L4_B_2_3))
1114                         return -EINVAL;
1115                 break;
1116         case UDP_V4_FLOW:
1117                 if (!(nfc->data & RXH_IP_SRC) ||
1118                     !(nfc->data & RXH_IP_DST))
1119                         return -EINVAL;
1120                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1121                 case 0:
1122                         flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1123                         break;
1124                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1125                         flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1126                         break;
1127                 default:
1128                         return -EINVAL;
1129                 }
1130                 break;
1131         case UDP_V6_FLOW:
1132                 if (!(nfc->data & RXH_IP_SRC) ||
1133                     !(nfc->data & RXH_IP_DST))
1134                         return -EINVAL;
1135                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1136                 case 0:
1137                         flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1138                         break;
1139                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1140                         flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1141                         break;
1142                 default:
1143                         return -EINVAL;
1144                 }
1145                 break;
1146         case AH_ESP_V4_FLOW:
1147         case AH_V4_FLOW:
1148         case ESP_V4_FLOW:
1149         case SCTP_V4_FLOW:
1150         case AH_ESP_V6_FLOW:
1151         case AH_V6_FLOW:
1152         case ESP_V6_FLOW:
1153         case SCTP_V6_FLOW:
1154                 if (!(nfc->data & RXH_IP_SRC) ||
1155                     !(nfc->data & RXH_IP_DST) ||
1156                     (nfc->data & RXH_L4_B_0_1) ||
1157                     (nfc->data & RXH_L4_B_2_3))
1158                         return -EINVAL;
1159                 break;
1160         default:
1161                 return -EINVAL;
1162         }
1163
1164         /* if we changed something we need to update flags */
1165         if (flags != adapter->flags) {
1166                 struct igc_hw *hw = &adapter->hw;
1167                 u32 mrqc = rd32(IGC_MRQC);
1168
1169                 if ((flags & UDP_RSS_FLAGS) &&
1170                     !(adapter->flags & UDP_RSS_FLAGS))
1171                         netdev_err(adapter->netdev,
1172                                    "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1173
1174                 adapter->flags = flags;
1175
1176                 /* Perform hash on these packet types */
1177                 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1178                         IGC_MRQC_RSS_FIELD_IPV4_TCP |
1179                         IGC_MRQC_RSS_FIELD_IPV6 |
1180                         IGC_MRQC_RSS_FIELD_IPV6_TCP;
1181
1182                 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1183                           IGC_MRQC_RSS_FIELD_IPV6_UDP);
1184
1185                 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1186                         mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1187
1188                 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1189                         mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1190
1191                 wr32(IGC_MRQC, mrqc);
1192         }
1193
1194         return 0;
1195 }
1196
1197 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1198                                       const struct ethtool_rx_flow_spec *fsp)
1199 {
1200         INIT_LIST_HEAD(&rule->list);
1201
1202         rule->action = fsp->ring_cookie;
1203         rule->location = fsp->location;
1204
1205         if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1206                 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1207                 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1208         }
1209
1210         if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1211                 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1212                 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1213         }
1214
1215         /* Both source and destination address filters only support the full
1216          * mask.
1217          */
1218         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1219                 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1220                 ether_addr_copy(rule->filter.src_addr,
1221                                 fsp->h_u.ether_spec.h_source);
1222         }
1223
1224         if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1225                 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1226                 ether_addr_copy(rule->filter.dst_addr,
1227                                 fsp->h_u.ether_spec.h_dest);
1228         }
1229 }
1230
1231 /**
1232  * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1233  * @adapter: Pointer to adapter
1234  * @rule: Rule under evaluation
1235  *
1236  * The driver doesn't support rules with multiple matches so if more than
1237  * one bit in filter flags is set, @rule is considered invalid.
1238  *
1239  * Also, if there is already another rule with the same filter in a different
1240  * location, @rule is considered invalid.
1241  *
1242  * Context: Expects adapter->nfc_rule_lock to be held by caller.
1243  *
1244  * Return: 0 in case of success, negative errno code otherwise.
1245  */
1246 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1247                                       struct igc_nfc_rule *rule)
1248 {
1249         struct net_device *dev = adapter->netdev;
1250         u8 flags = rule->filter.match_flags;
1251         struct igc_nfc_rule *tmp;
1252
1253         if (!flags) {
1254                 netdev_dbg(dev, "Rule with no match\n");
1255                 return -EINVAL;
1256         }
1257
1258         if (flags & (flags - 1)) {
1259                 netdev_dbg(dev, "Rule with multiple matches not supported\n");
1260                 return -EOPNOTSUPP;
1261         }
1262
1263         list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1264                 if (!memcmp(&rule->filter, &tmp->filter,
1265                             sizeof(rule->filter)) &&
1266                     tmp->location != rule->location) {
1267                         netdev_dbg(dev, "Rule already exists\n");
1268                         return -EEXIST;
1269                 }
1270         }
1271
1272         return 0;
1273 }
1274
1275 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1276                                     struct ethtool_rxnfc *cmd)
1277 {
1278         struct net_device *netdev = adapter->netdev;
1279         struct ethtool_rx_flow_spec *fsp =
1280                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1281         struct igc_nfc_rule *rule, *old_rule;
1282         int err;
1283
1284         if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1285                 netdev_dbg(netdev, "N-tuple filters disabled\n");
1286                 return -EOPNOTSUPP;
1287         }
1288
1289         if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1290                 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1291                 return -EOPNOTSUPP;
1292         }
1293
1294         if ((fsp->flow_type & FLOW_EXT) &&
1295             fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1296                 netdev_dbg(netdev, "VLAN mask not supported\n");
1297                 return -EOPNOTSUPP;
1298         }
1299
1300         if (fsp->ring_cookie >= adapter->num_rx_queues) {
1301                 netdev_dbg(netdev, "Invalid action\n");
1302                 return -EINVAL;
1303         }
1304
1305         if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1306                 netdev_dbg(netdev, "Invalid location\n");
1307                 return -EINVAL;
1308         }
1309
1310         rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1311         if (!rule)
1312                 return -ENOMEM;
1313
1314         igc_ethtool_init_nfc_rule(rule, fsp);
1315
1316         mutex_lock(&adapter->nfc_rule_lock);
1317
1318         err = igc_ethtool_check_nfc_rule(adapter, rule);
1319         if (err)
1320                 goto err;
1321
1322         old_rule = igc_get_nfc_rule(adapter, fsp->location);
1323         if (old_rule)
1324                 igc_del_nfc_rule(adapter, old_rule);
1325
1326         err = igc_add_nfc_rule(adapter, rule);
1327         if (err)
1328                 goto err;
1329
1330         mutex_unlock(&adapter->nfc_rule_lock);
1331         return 0;
1332
1333 err:
1334         mutex_unlock(&adapter->nfc_rule_lock);
1335         kfree(rule);
1336         return err;
1337 }
1338
1339 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1340                                     struct ethtool_rxnfc *cmd)
1341 {
1342         struct ethtool_rx_flow_spec *fsp =
1343                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1344         struct igc_nfc_rule *rule;
1345
1346         mutex_lock(&adapter->nfc_rule_lock);
1347
1348         rule = igc_get_nfc_rule(adapter, fsp->location);
1349         if (!rule) {
1350                 mutex_unlock(&adapter->nfc_rule_lock);
1351                 return -EINVAL;
1352         }
1353
1354         igc_del_nfc_rule(adapter, rule);
1355
1356         mutex_unlock(&adapter->nfc_rule_lock);
1357         return 0;
1358 }
1359
1360 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1361                                  struct ethtool_rxnfc *cmd)
1362 {
1363         struct igc_adapter *adapter = netdev_priv(dev);
1364
1365         switch (cmd->cmd) {
1366         case ETHTOOL_SRXFH:
1367                 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1368         case ETHTOOL_SRXCLSRLINS:
1369                 return igc_ethtool_add_nfc_rule(adapter, cmd);
1370         case ETHTOOL_SRXCLSRLDEL:
1371                 return igc_ethtool_del_nfc_rule(adapter, cmd);
1372         default:
1373                 return -EOPNOTSUPP;
1374         }
1375 }
1376
1377 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1378 {
1379         struct igc_hw *hw = &adapter->hw;
1380         u32 reg = IGC_RETA(0);
1381         u32 shift = 0;
1382         int i = 0;
1383
1384         while (i < IGC_RETA_SIZE) {
1385                 u32 val = 0;
1386                 int j;
1387
1388                 for (j = 3; j >= 0; j--) {
1389                         val <<= 8;
1390                         val |= adapter->rss_indir_tbl[i + j];
1391                 }
1392
1393                 wr32(reg, val << shift);
1394                 reg += 4;
1395                 i += 4;
1396         }
1397 }
1398
1399 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1400 {
1401         return IGC_RETA_SIZE;
1402 }
1403
1404 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1405                                 u8 *hfunc)
1406 {
1407         struct igc_adapter *adapter = netdev_priv(netdev);
1408         int i;
1409
1410         if (hfunc)
1411                 *hfunc = ETH_RSS_HASH_TOP;
1412         if (!indir)
1413                 return 0;
1414         for (i = 0; i < IGC_RETA_SIZE; i++)
1415                 indir[i] = adapter->rss_indir_tbl[i];
1416
1417         return 0;
1418 }
1419
1420 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1421                                 const u8 *key, const u8 hfunc)
1422 {
1423         struct igc_adapter *adapter = netdev_priv(netdev);
1424         u32 num_queues;
1425         int i;
1426
1427         /* We do not allow change in unsupported parameters */
1428         if (key ||
1429             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1430                 return -EOPNOTSUPP;
1431         if (!indir)
1432                 return 0;
1433
1434         num_queues = adapter->rss_queues;
1435
1436         /* Verify user input. */
1437         for (i = 0; i < IGC_RETA_SIZE; i++)
1438                 if (indir[i] >= num_queues)
1439                         return -EINVAL;
1440
1441         for (i = 0; i < IGC_RETA_SIZE; i++)
1442                 adapter->rss_indir_tbl[i] = indir[i];
1443
1444         igc_write_rss_indir_tbl(adapter);
1445
1446         return 0;
1447 }
1448
1449 static void igc_ethtool_get_channels(struct net_device *netdev,
1450                                      struct ethtool_channels *ch)
1451 {
1452         struct igc_adapter *adapter = netdev_priv(netdev);
1453
1454         /* Report maximum channels */
1455         ch->max_combined = igc_get_max_rss_queues(adapter);
1456
1457         /* Report info for other vector */
1458         if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1459                 ch->max_other = NON_Q_VECTORS;
1460                 ch->other_count = NON_Q_VECTORS;
1461         }
1462
1463         ch->combined_count = adapter->rss_queues;
1464 }
1465
1466 static int igc_ethtool_set_channels(struct net_device *netdev,
1467                                     struct ethtool_channels *ch)
1468 {
1469         struct igc_adapter *adapter = netdev_priv(netdev);
1470         unsigned int count = ch->combined_count;
1471         unsigned int max_combined = 0;
1472
1473         /* Verify they are not requesting separate vectors */
1474         if (!count || ch->rx_count || ch->tx_count)
1475                 return -EINVAL;
1476
1477         /* Verify other_count is valid and has not been changed */
1478         if (ch->other_count != NON_Q_VECTORS)
1479                 return -EINVAL;
1480
1481         /* Verify the number of channels doesn't exceed hw limits */
1482         max_combined = igc_get_max_rss_queues(adapter);
1483         if (count > max_combined)
1484                 return -EINVAL;
1485
1486         if (count != adapter->rss_queues) {
1487                 adapter->rss_queues = count;
1488                 igc_set_flag_queue_pairs(adapter, max_combined);
1489
1490                 /* Hardware has to reinitialize queues and interrupts to
1491                  * match the new configuration.
1492                  */
1493                 return igc_reinit_queues(adapter);
1494         }
1495
1496         return 0;
1497 }
1498
1499 static int igc_ethtool_get_ts_info(struct net_device *dev,
1500                                    struct ethtool_ts_info *info)
1501 {
1502         struct igc_adapter *adapter = netdev_priv(dev);
1503
1504         if (adapter->ptp_clock)
1505                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1506         else
1507                 info->phc_index = -1;
1508
1509         switch (adapter->hw.mac.type) {
1510         case igc_i225:
1511                 info->so_timestamping =
1512                         SOF_TIMESTAMPING_TX_SOFTWARE |
1513                         SOF_TIMESTAMPING_RX_SOFTWARE |
1514                         SOF_TIMESTAMPING_SOFTWARE |
1515                         SOF_TIMESTAMPING_TX_HARDWARE |
1516                         SOF_TIMESTAMPING_RX_HARDWARE |
1517                         SOF_TIMESTAMPING_RAW_HARDWARE;
1518
1519                 info->tx_types =
1520                         BIT(HWTSTAMP_TX_OFF) |
1521                         BIT(HWTSTAMP_TX_ON);
1522
1523                 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1524                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1525
1526                 return 0;
1527         default:
1528                 return -EOPNOTSUPP;
1529         }
1530 }
1531
1532 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1533 {
1534         struct igc_adapter *adapter = netdev_priv(netdev);
1535         u32 priv_flags = 0;
1536
1537         if (adapter->flags & IGC_FLAG_RX_LEGACY)
1538                 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1539
1540         return priv_flags;
1541 }
1542
1543 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1544 {
1545         struct igc_adapter *adapter = netdev_priv(netdev);
1546         unsigned int flags = adapter->flags;
1547
1548         flags &= ~IGC_FLAG_RX_LEGACY;
1549         if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1550                 flags |= IGC_FLAG_RX_LEGACY;
1551
1552         if (flags != adapter->flags) {
1553                 adapter->flags = flags;
1554
1555                 /* reset interface to repopulate queues */
1556                 if (netif_running(netdev))
1557                         igc_reinit_locked(adapter);
1558         }
1559
1560         return 0;
1561 }
1562
1563 static int igc_ethtool_get_eee(struct net_device *netdev,
1564                                struct ethtool_eee *edata)
1565 {
1566         struct igc_adapter *adapter = netdev_priv(netdev);
1567         struct igc_hw *hw = &adapter->hw;
1568         u32 eeer;
1569
1570         if (hw->dev_spec._base.eee_enable)
1571                 edata->advertised =
1572                         mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1573
1574         *edata = adapter->eee;
1575         edata->supported = SUPPORTED_Autoneg;
1576
1577         eeer = rd32(IGC_EEER);
1578
1579         /* EEE status on negotiated link */
1580         if (eeer & IGC_EEER_EEE_NEG)
1581                 edata->eee_active = true;
1582
1583         if (eeer & IGC_EEER_TX_LPI_EN)
1584                 edata->tx_lpi_enabled = true;
1585
1586         edata->eee_enabled = hw->dev_spec._base.eee_enable;
1587
1588         edata->advertised = SUPPORTED_Autoneg;
1589         edata->lp_advertised = SUPPORTED_Autoneg;
1590
1591         /* Report correct negotiated EEE status for devices that
1592          * wrongly report EEE at half-duplex
1593          */
1594         if (adapter->link_duplex == HALF_DUPLEX) {
1595                 edata->eee_enabled = false;
1596                 edata->eee_active = false;
1597                 edata->tx_lpi_enabled = false;
1598                 edata->advertised &= ~edata->advertised;
1599         }
1600
1601         return 0;
1602 }
1603
1604 static int igc_ethtool_set_eee(struct net_device *netdev,
1605                                struct ethtool_eee *edata)
1606 {
1607         struct igc_adapter *adapter = netdev_priv(netdev);
1608         struct igc_hw *hw = &adapter->hw;
1609         struct ethtool_eee eee_curr;
1610         s32 ret_val;
1611
1612         memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1613
1614         ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1615         if (ret_val) {
1616                 netdev_err(netdev,
1617                            "Problem setting EEE advertisement options\n");
1618                 return -EINVAL;
1619         }
1620
1621         if (eee_curr.eee_enabled) {
1622                 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1623                         netdev_err(netdev,
1624                                    "Setting EEE tx-lpi is not supported\n");
1625                         return -EINVAL;
1626                 }
1627
1628                 /* Tx LPI timer is not implemented currently */
1629                 if (edata->tx_lpi_timer) {
1630                         netdev_err(netdev,
1631                                    "Setting EEE Tx LPI timer is not supported\n");
1632                         return -EINVAL;
1633                 }
1634         } else if (!edata->eee_enabled) {
1635                 netdev_err(netdev,
1636                            "Setting EEE options are not supported with EEE disabled\n");
1637                 return -EINVAL;
1638         }
1639
1640         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1641         if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1642                 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1643                 adapter->flags |= IGC_FLAG_EEE;
1644
1645                 /* reset link */
1646                 if (netif_running(netdev))
1647                         igc_reinit_locked(adapter);
1648                 else
1649                         igc_reset(adapter);
1650         }
1651
1652         return 0;
1653 }
1654
1655 static int igc_ethtool_begin(struct net_device *netdev)
1656 {
1657         struct igc_adapter *adapter = netdev_priv(netdev);
1658
1659         pm_runtime_get_sync(&adapter->pdev->dev);
1660         return 0;
1661 }
1662
1663 static void igc_ethtool_complete(struct net_device *netdev)
1664 {
1665         struct igc_adapter *adapter = netdev_priv(netdev);
1666
1667         pm_runtime_put(&adapter->pdev->dev);
1668 }
1669
1670 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1671                                           struct ethtool_link_ksettings *cmd)
1672 {
1673         struct igc_adapter *adapter = netdev_priv(netdev);
1674         struct igc_hw *hw = &adapter->hw;
1675         u32 status;
1676         u32 speed;
1677
1678         ethtool_link_ksettings_zero_link_mode(cmd, supported);
1679         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1680
1681         /* supported link modes */
1682         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1683         ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1684         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1685         ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1686         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1687         ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1688
1689         /* twisted pair */
1690         cmd->base.port = PORT_TP;
1691         cmd->base.phy_address = hw->phy.addr;
1692
1693         /* advertising link modes */
1694         if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1695                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1696         if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1697                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1698         if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1699                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1700         if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1701                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1702         if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1703                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1704         if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1705                 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1706
1707         /* set autoneg settings */
1708         if (hw->mac.autoneg == 1) {
1709                 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1710                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1711                                                      Autoneg);
1712         }
1713
1714         /* Set pause flow control settings */
1715         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1716
1717         switch (hw->fc.requested_mode) {
1718         case igc_fc_full:
1719                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1720                 break;
1721         case igc_fc_rx_pause:
1722                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1723                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1724                                                      Asym_Pause);
1725                 break;
1726         case igc_fc_tx_pause:
1727                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1728                                                      Asym_Pause);
1729                 break;
1730         default:
1731                 break;
1732         }
1733
1734         status = pm_runtime_suspended(&adapter->pdev->dev) ?
1735                  0 : rd32(IGC_STATUS);
1736
1737         if (status & IGC_STATUS_LU) {
1738                 if (status & IGC_STATUS_SPEED_1000) {
1739                         /* For I225, STATUS will indicate 1G speed in both
1740                          * 1 Gbps and 2.5 Gbps link modes.
1741                          * An additional bit is used
1742                          * to differentiate between 1 Gbps and 2.5 Gbps.
1743                          */
1744                         if (hw->mac.type == igc_i225 &&
1745                             (status & IGC_STATUS_SPEED_2500)) {
1746                                 speed = SPEED_2500;
1747                         } else {
1748                                 speed = SPEED_1000;
1749                         }
1750                 } else if (status & IGC_STATUS_SPEED_100) {
1751                         speed = SPEED_100;
1752                 } else {
1753                         speed = SPEED_10;
1754                 }
1755                 if ((status & IGC_STATUS_FD) ||
1756                     hw->phy.media_type != igc_media_type_copper)
1757                         cmd->base.duplex = DUPLEX_FULL;
1758                 else
1759                         cmd->base.duplex = DUPLEX_HALF;
1760         } else {
1761                 speed = SPEED_UNKNOWN;
1762                 cmd->base.duplex = DUPLEX_UNKNOWN;
1763         }
1764         cmd->base.speed = speed;
1765         if (hw->mac.autoneg)
1766                 cmd->base.autoneg = AUTONEG_ENABLE;
1767         else
1768                 cmd->base.autoneg = AUTONEG_DISABLE;
1769
1770         /* MDI-X => 2; MDI =>1; Invalid =>0 */
1771         if (hw->phy.media_type == igc_media_type_copper)
1772                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1773                                                       ETH_TP_MDI;
1774         else
1775                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1776
1777         if (hw->phy.mdix == AUTO_ALL_MODES)
1778                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1779         else
1780                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1781
1782         return 0;
1783 }
1784
1785 static int
1786 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1787                                const struct ethtool_link_ksettings *cmd)
1788 {
1789         struct igc_adapter *adapter = netdev_priv(netdev);
1790         struct net_device *dev = adapter->netdev;
1791         struct igc_hw *hw = &adapter->hw;
1792         u32 advertising;
1793
1794         /* When adapter in resetting mode, autoneg/speed/duplex
1795          * cannot be changed
1796          */
1797         if (igc_check_reset_block(hw)) {
1798                 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1799                 return -EINVAL;
1800         }
1801
1802         /* MDI setting is only allowed when autoneg enabled because
1803          * some hardware doesn't allow MDI setting when speed or
1804          * duplex is forced.
1805          */
1806         if (cmd->base.eth_tp_mdix_ctrl) {
1807                 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1808                     cmd->base.autoneg != AUTONEG_ENABLE) {
1809                         netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1810                         return -EINVAL;
1811                 }
1812         }
1813
1814         while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1815                 usleep_range(1000, 2000);
1816
1817         ethtool_convert_link_mode_to_legacy_u32(&advertising,
1818                                                 cmd->link_modes.advertising);
1819         /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
1820          * We have to check this and convert it to ADVERTISE_2500_FULL
1821          * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
1822          */
1823         if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
1824                 advertising |= ADVERTISE_2500_FULL;
1825
1826         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1827                 hw->mac.autoneg = 1;
1828                 hw->phy.autoneg_advertised = advertising;
1829                 if (adapter->fc_autoneg)
1830                         hw->fc.requested_mode = igc_fc_default;
1831         } else {
1832                 netdev_info(dev, "Force mode currently not supported\n");
1833         }
1834
1835         /* MDI-X => 2; MDI => 1; Auto => 3 */
1836         if (cmd->base.eth_tp_mdix_ctrl) {
1837                 /* fix up the value for auto (3 => 0) as zero is mapped
1838                  * internally to auto
1839                  */
1840                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1841                         hw->phy.mdix = AUTO_ALL_MODES;
1842                 else
1843                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1844         }
1845
1846         /* reset the link */
1847         if (netif_running(adapter->netdev)) {
1848                 igc_down(adapter);
1849                 igc_up(adapter);
1850         } else {
1851                 igc_reset(adapter);
1852         }
1853
1854         clear_bit(__IGC_RESETTING, &adapter->state);
1855
1856         return 0;
1857 }
1858
1859 static void igc_ethtool_diag_test(struct net_device *netdev,
1860                                   struct ethtool_test *eth_test, u64 *data)
1861 {
1862         struct igc_adapter *adapter = netdev_priv(netdev);
1863         bool if_running = netif_running(netdev);
1864
1865         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1866                 netdev_info(adapter->netdev, "Offline testing starting");
1867                 set_bit(__IGC_TESTING, &adapter->state);
1868
1869                 /* Link test performed before hardware reset so autoneg doesn't
1870                  * interfere with test result
1871                  */
1872                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1873                         eth_test->flags |= ETH_TEST_FL_FAILED;
1874
1875                 if (if_running)
1876                         igc_close(netdev);
1877                 else
1878                         igc_reset(adapter);
1879
1880                 netdev_info(adapter->netdev, "Register testing starting");
1881                 if (!igc_reg_test(adapter, &data[TEST_REG]))
1882                         eth_test->flags |= ETH_TEST_FL_FAILED;
1883
1884                 igc_reset(adapter);
1885
1886                 netdev_info(adapter->netdev, "EEPROM testing starting");
1887                 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1888                         eth_test->flags |= ETH_TEST_FL_FAILED;
1889
1890                 igc_reset(adapter);
1891
1892                 /* loopback and interrupt tests
1893                  * will be implemented in the future
1894                  */
1895                 data[TEST_LOOP] = 0;
1896                 data[TEST_IRQ] = 0;
1897
1898                 clear_bit(__IGC_TESTING, &adapter->state);
1899                 if (if_running)
1900                         igc_open(netdev);
1901         } else {
1902                 netdev_info(adapter->netdev, "Online testing starting");
1903
1904                 /* register, eeprom, intr and loopback tests not run online */
1905                 data[TEST_REG] = 0;
1906                 data[TEST_EEP] = 0;
1907                 data[TEST_IRQ] = 0;
1908                 data[TEST_LOOP] = 0;
1909
1910                 if (!igc_link_test(adapter, &data[TEST_LINK]))
1911                         eth_test->flags |= ETH_TEST_FL_FAILED;
1912         }
1913
1914         msleep_interruptible(4 * 1000);
1915 }
1916
1917 static const struct ethtool_ops igc_ethtool_ops = {
1918         .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1919         .get_drvinfo            = igc_ethtool_get_drvinfo,
1920         .get_regs_len           = igc_ethtool_get_regs_len,
1921         .get_regs               = igc_ethtool_get_regs,
1922         .get_wol                = igc_ethtool_get_wol,
1923         .set_wol                = igc_ethtool_set_wol,
1924         .get_msglevel           = igc_ethtool_get_msglevel,
1925         .set_msglevel           = igc_ethtool_set_msglevel,
1926         .nway_reset             = igc_ethtool_nway_reset,
1927         .get_link               = igc_ethtool_get_link,
1928         .get_eeprom_len         = igc_ethtool_get_eeprom_len,
1929         .get_eeprom             = igc_ethtool_get_eeprom,
1930         .set_eeprom             = igc_ethtool_set_eeprom,
1931         .get_ringparam          = igc_ethtool_get_ringparam,
1932         .set_ringparam          = igc_ethtool_set_ringparam,
1933         .get_pauseparam         = igc_ethtool_get_pauseparam,
1934         .set_pauseparam         = igc_ethtool_set_pauseparam,
1935         .get_strings            = igc_ethtool_get_strings,
1936         .get_sset_count         = igc_ethtool_get_sset_count,
1937         .get_ethtool_stats      = igc_ethtool_get_stats,
1938         .get_coalesce           = igc_ethtool_get_coalesce,
1939         .set_coalesce           = igc_ethtool_set_coalesce,
1940         .get_rxnfc              = igc_ethtool_get_rxnfc,
1941         .set_rxnfc              = igc_ethtool_set_rxnfc,
1942         .get_rxfh_indir_size    = igc_ethtool_get_rxfh_indir_size,
1943         .get_rxfh               = igc_ethtool_get_rxfh,
1944         .set_rxfh               = igc_ethtool_set_rxfh,
1945         .get_ts_info            = igc_ethtool_get_ts_info,
1946         .get_channels           = igc_ethtool_get_channels,
1947         .set_channels           = igc_ethtool_set_channels,
1948         .get_priv_flags         = igc_ethtool_get_priv_flags,
1949         .set_priv_flags         = igc_ethtool_set_priv_flags,
1950         .get_eee                = igc_ethtool_get_eee,
1951         .set_eee                = igc_ethtool_set_eee,
1952         .begin                  = igc_ethtool_begin,
1953         .complete               = igc_ethtool_complete,
1954         .get_link_ksettings     = igc_ethtool_get_link_ksettings,
1955         .set_link_ksettings     = igc_ethtool_set_link_ksettings,
1956         .self_test              = igc_ethtool_diag_test,
1957 };
1958
1959 void igc_ethtool_set_ops(struct net_device *netdev)
1960 {
1961         netdev->ethtool_ops = &igc_ethtool_ops;
1962 }