drivers/net/e1000e/82571.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2008 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /*
  30  * 82571EB Gigabit Ethernet Controller
  31  * 82571EB Gigabit Ethernet Controller (Fiber)
  32  * 82571EB Dual Port Gigabit Mezzanine Adapter
  33  * 82571EB Quad Port Gigabit Mezzanine Adapter
  34  * 82571PT Gigabit PT Quad Port Server ExpressModule
  35  * 82572EI Gigabit Ethernet Controller (Copper)
  36  * 82572EI Gigabit Ethernet Controller (Fiber)
  37  * 82572EI Gigabit Ethernet Controller
  38  * 82573V Gigabit Ethernet Controller (Copper)
  39  * 82573E Gigabit Ethernet Controller (Copper)
  40  * 82573L Gigabit Ethernet Controller
  41  * 82574L Gigabit Network Connection
  42  */
  43
  44 #include <linux/netdevice.h>
  45 #include <linux/delay.h>
  46 #include <linux/pci.h>
  47
  48 #include "e1000.h"
  49
  50 #define ID_LED_RESERVED_F746 0xF746
  51 #define ID_LED_DEFAULT_82573 ((ID_LED_DEF1_DEF2 << 12) | \
  52                               (ID_LED_OFF1_ON2  <<  8) | \
  53                               (ID_LED_DEF1_DEF2 <<  4) | \
  54                               (ID_LED_DEF1_DEF2))
  55
  56 #define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
  57
  58 #define E1000_NVM_INIT_CTRL2_MNGM 0x6000 /* Manageability Operation Mode mask */
  59
  60 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
  61 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
  62 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
  63 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
  64                                       u16 words, u16 *data);
  65 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
  66 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
  67 static s32 e1000_setup_link_82571(struct e1000_hw *hw);
  68 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
  69 static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
  70 static s32 e1000_led_on_82574(struct e1000_hw *hw);
  71
  72 /**
  73  *  e1000_init_phy_params_82571 - Init PHY func ptrs.
  74  *  @hw: pointer to the HW structure
  75  *
  76  *  This is a function pointer entry point called by the api module.
  77  **/
  78 static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
  79 {
  80         struct e1000_phy_info *phy = &hw->phy;
  81         s32 ret_val;
  82
  83         if (hw->phy.media_type != e1000_media_type_copper) {
  84                 phy->type = e1000_phy_none;
  85                 return 0;
  86         }
  87
  88         phy->addr                        = 1;
  89         phy->autoneg_mask                = AUTONEG_ADVERTISE_SPEED_DEFAULT;
  90         phy->reset_delay_us              = 100;
  91
  92         switch (hw->mac.type) {
  93         case e1000_82571:
  94         case e1000_82572:
  95                 phy->type                = e1000_phy_igp_2;
  96                 break;
  97         case e1000_82573:
  98                 phy->type                = e1000_phy_m88;
  99                 break;
 100         case e1000_82574:
 101                 phy->type                = e1000_phy_bm;
 102                 break;
 103         default:
 104                 return -E1000_ERR_PHY;
 105                 break;
 106         }
 107
 108         /* This can only be done after all function pointers are setup. */
 109         ret_val = e1000_get_phy_id_82571(hw);
 110
 111         /* Verify phy id */
 112         switch (hw->mac.type) {
 113         case e1000_82571:
 114         case e1000_82572:
 115                 if (phy->id != IGP01E1000_I_PHY_ID)
 116                         return -E1000_ERR_PHY;
 117                 break;
 118         case e1000_82573:
 119                 if (phy->id != M88E1111_I_PHY_ID)
 120                         return -E1000_ERR_PHY;
 121                 break;
 122         case e1000_82574:
 123                 if (phy->id != BME1000_E_PHY_ID_R2)
 124                         return -E1000_ERR_PHY;
 125                 break;
 126         default:
 127                 return -E1000_ERR_PHY;
 128                 break;
 129         }
 130
 131         return 0;
 132 }
 133
 134 /**
 135  *  e1000_init_nvm_params_82571 - Init NVM func ptrs.
 136  *  @hw: pointer to the HW structure
 137  *
 138  *  This is a function pointer entry point called by the api module.
 139  **/
 140 static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
 141 {
 142         struct e1000_nvm_info *nvm = &hw->nvm;
 143         u32 eecd = er32(EECD);
 144         u16 size;
 145
 146         nvm->opcode_bits = 8;
 147         nvm->delay_usec = 1;
 148         switch (nvm->override) {
 149         case e1000_nvm_override_spi_large:
 150                 nvm->page_size = 32;
 151                 nvm->address_bits = 16;
 152                 break;
 153         case e1000_nvm_override_spi_small:
 154                 nvm->page_size = 8;
 155                 nvm->address_bits = 8;
 156                 break;
 157         default:
 158                 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
 159                 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
 160                 break;
 161         }
 162
 163         switch (hw->mac.type) {
 164         case e1000_82573:
 165         case e1000_82574:
 166                 if (((eecd >> 15) & 0x3) == 0x3) {
 167                         nvm->type = e1000_nvm_flash_hw;
 168                         nvm->word_size = 2048;
 169                         /*
 170                          * Autonomous Flash update bit must be cleared due
 171                          * to Flash update issue.
 172                          */
 173                         eecd &= ~E1000_EECD_AUPDEN;
 174                         ew32(EECD, eecd);
 175                         break;
 176                 }
 177                 /* Fall Through */
 178         default:
 179                 nvm->type = e1000_nvm_eeprom_spi;
 180                 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
 181                                   E1000_EECD_SIZE_EX_SHIFT);
 182                 /*
 183                  * Added to a constant, "size" becomes the left-shift value
 184                  * for setting word_size.
 185                  */
 186                 size += NVM_WORD_SIZE_BASE_SHIFT;
 187
 188                 /* EEPROM access above 16k is unsupported */
 189                 if (size > 14)
 190                         size = 14;
 191                 nvm->word_size  = 1 << size;
 192                 break;
 193         }
 194
 195         return 0;
 196 }
 197
 198 /**
 199  *  e1000_init_mac_params_82571 - Init MAC func ptrs.
 200  *  @hw: pointer to the HW structure
 201  *
 202  *  This is a function pointer entry point called by the api module.
 203  **/
 204 static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
 205 {
 206         struct e1000_hw *hw = &adapter->hw;
 207         struct e1000_mac_info *mac = &hw->mac;
 208         struct e1000_mac_operations *func = &mac->ops;
 209
 210         /* Set media type */
 211         switch (adapter->pdev->device) {
 212         case E1000_DEV_ID_82571EB_FIBER:
 213         case E1000_DEV_ID_82572EI_FIBER:
 214         case E1000_DEV_ID_82571EB_QUAD_FIBER:
 215                 hw->phy.media_type = e1000_media_type_fiber;
 216                 break;
 217         case E1000_DEV_ID_82571EB_SERDES:
 218         case E1000_DEV_ID_82572EI_SERDES:
 219         case E1000_DEV_ID_82571EB_SERDES_DUAL:
 220         case E1000_DEV_ID_82571EB_SERDES_QUAD:
 221                 hw->phy.media_type = e1000_media_type_internal_serdes;
 222                 break;
 223         default:
 224                 hw->phy.media_type = e1000_media_type_copper;
 225                 break;
 226         }
 227
 228         /* Set mta register count */
 229         mac->mta_reg_count = 128;
 230         /* Set rar entry count */
 231         mac->rar_entry_count = E1000_RAR_ENTRIES;
 232         /* Set if manageability features are enabled. */
 233         mac->arc_subsystem_valid = (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0;
 234
 235         /* check for link */
 236         switch (hw->phy.media_type) {
 237         case e1000_media_type_copper:
 238                 func->setup_physical_interface = e1000_setup_copper_link_82571;
 239                 func->check_for_link = e1000e_check_for_copper_link;
 240                 func->get_link_up_info = e1000e_get_speed_and_duplex_copper;
 241                 break;
 242         case e1000_media_type_fiber:
 243                 func->setup_physical_interface =
 244                         e1000_setup_fiber_serdes_link_82571;
 245                 func->check_for_link = e1000e_check_for_fiber_link;
 246                 func->get_link_up_info =
 247                         e1000e_get_speed_and_duplex_fiber_serdes;
 248                 break;
 249         case e1000_media_type_internal_serdes:
 250                 func->setup_physical_interface =
 251                         e1000_setup_fiber_serdes_link_82571;
 252                 func->check_for_link = e1000e_check_for_serdes_link;
 253                 func->get_link_up_info =
 254                         e1000e_get_speed_and_duplex_fiber_serdes;
 255                 break;
 256         default:
 257                 return -E1000_ERR_CONFIG;
 258                 break;
 259         }
 260
 261         switch (hw->mac.type) {
 262         case e1000_82574:
 263                 func->check_mng_mode = e1000_check_mng_mode_82574;
 264                 func->led_on = e1000_led_on_82574;
 265                 break;
 266         default:
 267                 func->check_mng_mode = e1000e_check_mng_mode_generic;
 268                 func->led_on = e1000e_led_on_generic;
 269                 break;
 270         }
 271
 272         return 0;
 273 }
 274
 275 static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 276 {
 277         struct e1000_hw *hw = &adapter->hw;
 278         static int global_quad_port_a; /* global port a indication */
 279         struct pci_dev *pdev = adapter->pdev;
 280         u16 eeprom_data = 0;
 281         int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
 282         s32 rc;
 283
 284         rc = e1000_init_mac_params_82571(adapter);
 285         if (rc)
 286                 return rc;
 287
 288         rc = e1000_init_nvm_params_82571(hw);
 289         if (rc)
 290                 return rc;
 291
 292         rc = e1000_init_phy_params_82571(hw);
 293         if (rc)
 294                 return rc;
 295
 296         /* tag quad port adapters first, it's used below */
 297         switch (pdev->device) {
 298         case E1000_DEV_ID_82571EB_QUAD_COPPER:
 299         case E1000_DEV_ID_82571EB_QUAD_FIBER:
 300         case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
 301         case E1000_DEV_ID_82571PT_QUAD_COPPER:
 302                 adapter->flags |= FLAG_IS_QUAD_PORT;
 303                 /* mark the first port */
 304                 if (global_quad_port_a == 0)
 305                         adapter->flags |= FLAG_IS_QUAD_PORT_A;
 306                 /* Reset for multiple quad port adapters */
 307                 global_quad_port_a++;
 308                 if (global_quad_port_a == 4)
 309                         global_quad_port_a = 0;
 310                 break;
 311         default:
 312                 break;
 313         }
 314
 315         switch (adapter->hw.mac.type) {
 316         case e1000_82571:
 317                 /* these dual ports don't have WoL on port B at all */
 318                 if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
 319                      (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
 320                      (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
 321                     (is_port_b))
 322                         adapter->flags &= ~FLAG_HAS_WOL;
 323                 /* quad ports only support WoL on port A */
 324                 if (adapter->flags & FLAG_IS_QUAD_PORT &&
 325                     (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
 326                         adapter->flags &= ~FLAG_HAS_WOL;
 327                 /* Does not support WoL on any port */
 328                 if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
 329                         adapter->flags &= ~FLAG_HAS_WOL;
 330                 break;
 331
 332         case e1000_82573:
 333                 if (pdev->device == E1000_DEV_ID_82573L) {
 334                         e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1,
 335                                        &eeprom_data);
 336                         if (eeprom_data & NVM_WORD1A_ASPM_MASK)
 337                                 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
 338                 }
 339                 break;
 340         default:
 341                 break;
 342         }
 343
 344         return 0;
 345 }
 346
 347 /**
 348  *  e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
 349  *  @hw: pointer to the HW structure
 350  *
 351  *  Reads the PHY registers and stores the PHY ID and possibly the PHY
 352  *  revision in the hardware structure.
 353  **/
 354 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
 355 {
 356         struct e1000_phy_info *phy = &hw->phy;
 357         s32 ret_val;
 358         u16 phy_id = 0;
 359
 360         switch (hw->mac.type) {
 361         case e1000_82571:
 362         case e1000_82572:
 363                 /*
 364                  * The 82571 firmware may still be configuring the PHY.
 365                  * In this case, we cannot access the PHY until the
 366                  * configuration is done.  So we explicitly set the
 367                  * PHY ID.
 368                  */
 369                 phy->id = IGP01E1000_I_PHY_ID;
 370                 break;
 371         case e1000_82573:
 372                 return e1000e_get_phy_id(hw);
 373                 break;
 374         case e1000_82574:
 375                 ret_val = e1e_rphy(hw, PHY_ID1, &phy_id);
 376                 if (ret_val)
 377                         return ret_val;
 378
 379                 phy->id = (u32)(phy_id << 16);
 380                 udelay(20);
 381                 ret_val = e1e_rphy(hw, PHY_ID2, &phy_id);
 382                 if (ret_val)
 383                         return ret_val;
 384
 385                 phy->id |= (u32)(phy_id);
 386                 phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
 387                 break;
 388         default:
 389                 return -E1000_ERR_PHY;
 390                 break;
 391         }
 392
 393         return 0;
 394 }
 395
 396 /**
 397  *  e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
 398  *  @hw: pointer to the HW structure
 399  *
 400  *  Acquire the HW semaphore to access the PHY or NVM
 401  **/
 402 static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
 403 {
 404         u32 swsm;
 405         s32 timeout = hw->nvm.word_size + 1;
 406         s32 i = 0;
 407
 408         /* Get the FW semaphore. */
 409         for (i = 0; i < timeout; i++) {
 410                 swsm = er32(SWSM);
 411                 ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
 412
 413                 /* Semaphore acquired if bit latched */
 414                 if (er32(SWSM) & E1000_SWSM_SWESMBI)
 415                         break;
 416
 417                 udelay(50);
 418         }
 419
 420         if (i == timeout) {
 421                 /* Release semaphores */
 422                 e1000e_put_hw_semaphore(hw);
 423                 hw_dbg(hw, "Driver can't access the NVM\n");
 424                 return -E1000_ERR_NVM;
 425         }
 426
 427         return 0;
 428 }
 429
 430 /**
 431  *  e1000_put_hw_semaphore_82571 - Release hardware semaphore
 432  *  @hw: pointer to the HW structure
 433  *
 434  *  Release hardware semaphore used to access the PHY or NVM
 435  **/
 436 static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
 437 {
 438         u32 swsm;
 439
 440         swsm = er32(SWSM);
 441
 442         swsm &= ~E1000_SWSM_SWESMBI;
 443
 444         ew32(SWSM, swsm);
 445 }
 446
 447 /**
 448  *  e1000_acquire_nvm_82571 - Request for access to the EEPROM
 449  *  @hw: pointer to the HW structure
 450  *
 451  *  To gain access to the EEPROM, first we must obtain a hardware semaphore.
 452  *  Then for non-82573 hardware, set the EEPROM access request bit and wait
 453  *  for EEPROM access grant bit.  If the access grant bit is not set, release
 454  *  hardware semaphore.
 455  **/
 456 static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
 457 {
 458         s32 ret_val;
 459
 460         ret_val = e1000_get_hw_semaphore_82571(hw);
 461         if (ret_val)
 462                 return ret_val;
 463
 464         if (hw->mac.type != e1000_82573 && hw->mac.type != e1000_82574)
 465                 ret_val = e1000e_acquire_nvm(hw);
 466
 467         if (ret_val)
 468                 e1000_put_hw_semaphore_82571(hw);
 469
 470         return ret_val;
 471 }
 472
 473 /**
 474  *  e1000_release_nvm_82571 - Release exclusive access to EEPROM
 475  *  @hw: pointer to the HW structure
 476  *
 477  *  Stop any current commands to the EEPROM and clear the EEPROM request bit.
 478  **/
 479 static void e1000_release_nvm_82571(struct e1000_hw *hw)
 480 {
 481         e1000e_release_nvm(hw);
 482         e1000_put_hw_semaphore_82571(hw);
 483 }
 484
 485 /**
 486  *  e1000_write_nvm_82571 - Write to EEPROM using appropriate interface
 487  *  @hw: pointer to the HW structure
 488  *  @offset: offset within the EEPROM to be written to
 489  *  @words: number of words to write
 490  *  @data: 16 bit word(s) to be written to the EEPROM
 491  *
 492  *  For non-82573 silicon, write data to EEPROM at offset using SPI interface.
 493  *
 494  *  If e1000e_update_nvm_checksum is not called after this function, the
 495  *  EEPROM will most likely contain an invalid checksum.
 496  **/
 497 static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
 498                                  u16 *data)
 499 {
 500         s32 ret_val;
 501
 502         switch (hw->mac.type) {
 503         case e1000_82573:
 504         case e1000_82574:
 505                 ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
 506                 break;
 507         case e1000_82571:
 508         case e1000_82572:
 509                 ret_val = e1000e_write_nvm_spi(hw, offset, words, data);
 510                 break;
 511         default:
 512                 ret_val = -E1000_ERR_NVM;
 513                 break;
 514         }
 515
 516         return ret_val;
 517 }
 518
 519 /**
 520  *  e1000_update_nvm_checksum_82571 - Update EEPROM checksum
 521  *  @hw: pointer to the HW structure
 522  *
 523  *  Updates the EEPROM checksum by reading/adding each word of the EEPROM
 524  *  up to the checksum.  Then calculates the EEPROM checksum and writes the
 525  *  value to the EEPROM.
 526  **/
 527 static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
 528 {
 529         u32 eecd;
 530         s32 ret_val;
 531         u16 i;
 532
 533         ret_val = e1000e_update_nvm_checksum_generic(hw);
 534         if (ret_val)
 535                 return ret_val;
 536
 537         /*
 538          * If our nvm is an EEPROM, then we're done
 539          * otherwise, commit the checksum to the flash NVM.
 540          */
 541         if (hw->nvm.type != e1000_nvm_flash_hw)
 542                 return ret_val;
 543
 544         /* Check for pending operations. */
 545         for (i = 0; i < E1000_FLASH_UPDATES; i++) {
 546                 msleep(1);
 547                 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
 548                         break;
 549         }
 550
 551         if (i == E1000_FLASH_UPDATES)
 552                 return -E1000_ERR_NVM;
 553
 554         /* Reset the firmware if using STM opcode. */
 555         if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) {
 556                 /*
 557                  * The enabling of and the actual reset must be done
 558                  * in two write cycles.
 559                  */
 560                 ew32(HICR, E1000_HICR_FW_RESET_ENABLE);
 561                 e1e_flush();
 562                 ew32(HICR, E1000_HICR_FW_RESET);
 563         }
 564
 565         /* Commit the write to flash */
 566         eecd = er32(EECD) | E1000_EECD_FLUPD;
 567         ew32(EECD, eecd);
 568
 569         for (i = 0; i < E1000_FLASH_UPDATES; i++) {
 570                 msleep(1);
 571                 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
 572                         break;
 573         }
 574
 575         if (i == E1000_FLASH_UPDATES)
 576                 return -E1000_ERR_NVM;
 577
 578         return 0;
 579 }
 580
 581 /**
 582  *  e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum
 583  *  @hw: pointer to the HW structure
 584  *
 585  *  Calculates the EEPROM checksum by reading/adding each word of the EEPROM
 586  *  and then verifies that the sum of the EEPROM is equal to 0xBABA.
 587  **/
 588 static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw)
 589 {
 590         if (hw->nvm.type == e1000_nvm_flash_hw)
 591                 e1000_fix_nvm_checksum_82571(hw);
 592
 593         return e1000e_validate_nvm_checksum_generic(hw);
 594 }
 595
 596 /**
 597  *  e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon
 598  *  @hw: pointer to the HW structure
 599  *  @offset: offset within the EEPROM to be written to
 600  *  @words: number of words to write
 601  *  @data: 16 bit word(s) to be written to the EEPROM
 602  *
 603  *  After checking for invalid values, poll the EEPROM to ensure the previous
 604  *  command has completed before trying to write the next word.  After write
 605  *  poll for completion.
 606  *
 607  *  If e1000e_update_nvm_checksum is not called after this function, the
 608  *  EEPROM will most likely contain an invalid checksum.
 609  **/
 610 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
 611                                       u16 words, u16 *data)
 612 {
 613         struct e1000_nvm_info *nvm = &hw->nvm;
 614         u32 i;
 615         u32 eewr = 0;
 616         s32 ret_val = 0;
 617
 618         /*
 619          * A check for invalid values:  offset too large, too many words,
 620          * and not enough words.
 621          */
 622         if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
 623             (words == 0)) {
 624                 hw_dbg(hw, "nvm parameter(s) out of bounds\n");
 625                 return -E1000_ERR_NVM;
 626         }
 627
 628         for (i = 0; i < words; i++) {
 629                 eewr = (data[i] << E1000_NVM_RW_REG_DATA) |
 630                        ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) |
 631                        E1000_NVM_RW_REG_START;
 632
 633                 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
 634                 if (ret_val)
 635                         break;
 636
 637                 ew32(EEWR, eewr);
 638
 639                 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
 640                 if (ret_val)
 641                         break;
 642         }
 643
 644         return ret_val;
 645 }
 646
 647 /**
 648  *  e1000_get_cfg_done_82571 - Poll for configuration done
 649  *  @hw: pointer to the HW structure
 650  *
 651  *  Reads the management control register for the config done bit to be set.
 652  **/
 653 static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
 654 {
 655         s32 timeout = PHY_CFG_TIMEOUT;
 656
 657         while (timeout) {
 658                 if (er32(EEMNGCTL) &
 659                     E1000_NVM_CFG_DONE_PORT_0)
 660                         break;
 661                 msleep(1);
 662                 timeout--;
 663         }
 664         if (!timeout) {
 665                 hw_dbg(hw, "MNG configuration cycle has not completed.\n");
 666                 return -E1000_ERR_RESET;
 667         }
 668
 669         return 0;
 670 }
 671
 672 /**
 673  *  e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
 674  *  @hw: pointer to the HW structure
 675  *  @active: TRUE to enable LPLU, FALSE to disable
 676  *
 677  *  Sets the LPLU D0 state according to the active flag.  When activating LPLU
 678  *  this function also disables smart speed and vice versa.  LPLU will not be
 679  *  activated unless the device autonegotiation advertisement meets standards
 680  *  of either 10 or 10/100 or 10/100/1000 at all duplexes.  This is a function
 681  *  pointer entry point only called by PHY setup routines.
 682  **/
 683 static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
 684 {
 685         struct e1000_phy_info *phy = &hw->phy;
 686         s32 ret_val;
 687         u16 data;
 688
 689         ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
 690         if (ret_val)
 691                 return ret_val;
 692
 693         if (active) {
 694                 data |= IGP02E1000_PM_D0_LPLU;
 695                 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
 696                 if (ret_val)
 697                         return ret_val;
 698
 699                 /* When LPLU is enabled, we should disable SmartSpeed */
 700                 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
 701                 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
 702                 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
 703                 if (ret_val)
 704                         return ret_val;
 705         } else {
 706                 data &= ~IGP02E1000_PM_D0_LPLU;
 707                 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
 708                 /*
 709                  * LPLU and SmartSpeed are mutually exclusive.  LPLU is used
 710                  * during Dx states where the power conservation is most
 711                  * important.  During driver activity we should enable
 712                  * SmartSpeed, so performance is maintained.
 713                  */
 714                 if (phy->smart_speed == e1000_smart_speed_on) {
 715                         ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 716                                            &data);
 717                         if (ret_val)
 718                                 return ret_val;
 719
 720                         data |= IGP01E1000_PSCFR_SMART_SPEED;
 721                         ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 722                                            data);
 723                         if (ret_val)
 724                                 return ret_val;
 725                 } else if (phy->smart_speed == e1000_smart_speed_off) {
 726                         ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 727                                            &data);
 728                         if (ret_val)
 729                                 return ret_val;
 730
 731                         data &= ~IGP01E1000_PSCFR_SMART_SPEED;
 732                         ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 733                                            data);
 734                         if (ret_val)
 735                                 return ret_val;
 736                 }
 737         }
 738
 739         return 0;
 740 }
 741
 742 /**
 743  *  e1000_reset_hw_82571 - Reset hardware
 744  *  @hw: pointer to the HW structure
 745  *
 746  *  This resets the hardware into a known state.  This is a
 747  *  function pointer entry point called by the api module.
 748  **/
 749 static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 750 {
 751         u32 ctrl;
 752         u32 extcnf_ctrl;
 753         u32 ctrl_ext;
 754         u32 icr;
 755         s32 ret_val;
 756         u16 i = 0;
 757
 758         /*
 759          * Prevent the PCI-E bus from sticking if there is no TLP connection
 760          * on the last TLP read/write transaction when MAC is reset.
 761          */
 762         ret_val = e1000e_disable_pcie_master(hw);
 763         if (ret_val)
 764                 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
 765
 766         hw_dbg(hw, "Masking off all interrupts\n");
 767         ew32(IMC, 0xffffffff);
 768
 769         ew32(RCTL, 0);
 770         ew32(TCTL, E1000_TCTL_PSP);
 771         e1e_flush();
 772
 773         msleep(10);
 774
 775         /*
 776          * Must acquire the MDIO ownership before MAC reset.
 777          * Ownership defaults to firmware after a reset.
 778          */
 779         if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 780                 extcnf_ctrl = er32(EXTCNF_CTRL);
 781                 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
 782
 783                 do {
 784                         ew32(EXTCNF_CTRL, extcnf_ctrl);
 785                         extcnf_ctrl = er32(EXTCNF_CTRL);
 786
 787                         if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
 788                                 break;
 789
 790                         extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
 791
 792                         msleep(2);
 793                         i++;
 794                 } while (i < MDIO_OWNERSHIP_TIMEOUT);
 795         }
 796
 797         ctrl = er32(CTRL);
 798
 799         hw_dbg(hw, "Issuing a global reset to MAC\n");
 800         ew32(CTRL, ctrl | E1000_CTRL_RST);
 801
 802         if (hw->nvm.type == e1000_nvm_flash_hw) {
 803                 udelay(10);
 804                 ctrl_ext = er32(CTRL_EXT);
 805                 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
 806                 ew32(CTRL_EXT, ctrl_ext);
 807                 e1e_flush();
 808         }
 809
 810         ret_val = e1000e_get_auto_rd_done(hw);
 811         if (ret_val)
 812                 /* We don't want to continue accessing MAC registers. */
 813                 return ret_val;
 814
 815         /*
 816          * Phy configuration from NVM just starts after EECD_AUTO_RD is set.
 817          * Need to wait for Phy configuration completion before accessing
 818          * NVM and Phy.
 819          */
 820         if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574)
 821                 msleep(25);
 822
 823         /* Clear any pending interrupt events. */
 824         ew32(IMC, 0xffffffff);
 825         icr = er32(ICR);
 826
 827         if (hw->mac.type == e1000_82571 &&
 828                 hw->dev_spec.e82571.alt_mac_addr_is_present)
 829                         e1000e_set_laa_state_82571(hw, true);
 830
 831         return 0;
 832 }
 833
 834 /**
 835  *  e1000_init_hw_82571 - Initialize hardware
 836  *  @hw: pointer to the HW structure
 837  *
 838  *  This inits the hardware readying it for operation.
 839  **/
 840 static s32 e1000_init_hw_82571(struct e1000_hw *hw)
 841 {
 842         struct e1000_mac_info *mac = &hw->mac;
 843         u32 reg_data;
 844         s32 ret_val;
 845         u16 i;
 846         u16 rar_count = mac->rar_entry_count;
 847
 848         e1000_initialize_hw_bits_82571(hw);
 849
 850         /* Initialize identification LED */
 851         ret_val = e1000e_id_led_init(hw);
 852         if (ret_val) {
 853                 hw_dbg(hw, "Error initializing identification LED\n");
 854                 return ret_val;
 855         }
 856
 857         /* Disabling VLAN filtering */
 858         hw_dbg(hw, "Initializing the IEEE VLAN\n");
 859         e1000e_clear_vfta(hw);
 860
 861         /* Setup the receive address. */
 862         /*
 863          * If, however, a locally administered address was assigned to the
 864          * 82571, we must reserve a RAR for it to work around an issue where
 865          * resetting one port will reload the MAC on the other port.
 866          */
 867         if (e1000e_get_laa_state_82571(hw))
 868                 rar_count--;
 869         e1000e_init_rx_addrs(hw, rar_count);
 870
 871         /* Zero out the Multicast HASH table */
 872         hw_dbg(hw, "Zeroing the MTA\n");
 873         for (i = 0; i < mac->mta_reg_count; i++)
 874                 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
 875
 876         /* Setup link and flow control */
 877         ret_val = e1000_setup_link_82571(hw);
 878
 879         /* Set the transmit descriptor write-back policy */
 880         reg_data = er32(TXDCTL(0));
 881         reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
 882                    E1000_TXDCTL_FULL_TX_DESC_WB |
 883                    E1000_TXDCTL_COUNT_DESC;
 884         ew32(TXDCTL(0), reg_data);
 885
 886         /* ...for both queues. */
 887         if (mac->type != e1000_82573 && mac->type != e1000_82574) {
 888                 reg_data = er32(TXDCTL(1));
 889                 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
 890                            E1000_TXDCTL_FULL_TX_DESC_WB |
 891                            E1000_TXDCTL_COUNT_DESC;
 892                 ew32(TXDCTL(1), reg_data);
 893         } else {
 894                 e1000e_enable_tx_pkt_filtering(hw);
 895                 reg_data = er32(GCR);
 896                 reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
 897                 ew32(GCR, reg_data);
 898         }
 899
 900         /*
 901          * Clear all of the statistics registers (clear on read).  It is
 902          * important that we do this after we have tried to establish link
 903          * because the symbol error count will increment wildly if there
 904          * is no link.
 905          */
 906         e1000_clear_hw_cntrs_82571(hw);
 907
 908         return ret_val;
 909 }
 910
 911 /**
 912  *  e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits
 913  *  @hw: pointer to the HW structure
 914  *
 915  *  Initializes required hardware-dependent bits needed for normal operation.
 916  **/
 917 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 918 {
 919         u32 reg;
 920
 921         /* Transmit Descriptor Control 0 */
 922         reg = er32(TXDCTL(0));
 923         reg |= (1 << 22);
 924         ew32(TXDCTL(0), reg);
 925
 926         /* Transmit Descriptor Control 1 */
 927         reg = er32(TXDCTL(1));
 928         reg |= (1 << 22);
 929         ew32(TXDCTL(1), reg);
 930
 931         /* Transmit Arbitration Control 0 */
 932         reg = er32(TARC(0));
 933         reg &= ~(0xF << 27); /* 30:27 */
 934         switch (hw->mac.type) {
 935         case e1000_82571:
 936         case e1000_82572:
 937                 reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
 938                 break;
 939         default:
 940                 break;
 941         }
 942         ew32(TARC(0), reg);
 943
 944         /* Transmit Arbitration Control 1 */
 945         reg = er32(TARC(1));
 946         switch (hw->mac.type) {
 947         case e1000_82571:
 948         case e1000_82572:
 949                 reg &= ~((1 << 29) | (1 << 30));
 950                 reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26);
 951                 if (er32(TCTL) & E1000_TCTL_MULR)
 952                         reg &= ~(1 << 28);
 953                 else
 954                         reg |= (1 << 28);
 955                 ew32(TARC(1), reg);
 956                 break;
 957         default:
 958                 break;
 959         }
 960
 961         /* Device Control */
 962         if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 963                 reg = er32(CTRL);
 964                 reg &= ~(1 << 29);
 965                 ew32(CTRL, reg);
 966         }
 967
 968         /* Extended Device Control */
 969         if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 970                 reg = er32(CTRL_EXT);
 971                 reg &= ~(1 << 23);
 972                 reg |= (1 << 22);
 973                 ew32(CTRL_EXT, reg);
 974         }
 975
 976         if (hw->mac.type == e1000_82571) {
 977                 reg = er32(PBA_ECC);
 978                 reg |= E1000_PBA_ECC_CORR_EN;
 979                 ew32(PBA_ECC, reg);
 980         }
 981
 982         /* PCI-Ex Control Register */
 983         if (hw->mac.type == e1000_82574) {
 984                 reg = er32(GCR);
 985                 reg |= (1 << 22);
 986                 ew32(GCR, reg);
 987         }
 988
 989         return;
 990 }
 991
 992 /**
 993  *  e1000e_clear_vfta - Clear VLAN filter table
 994  *  @hw: pointer to the HW structure
 995  *
 996  *  Clears the register array which contains the VLAN filter table by
 997  *  setting all the values to 0.
 998  **/
 999 void e1000e_clear_vfta(struct e1000_hw *hw)
1000 {
1001         u32 offset;
1002         u32 vfta_value = 0;
1003         u32 vfta_offset = 0;
1004         u32 vfta_bit_in_reg = 0;
1005
1006         if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
1007                 if (hw->mng_cookie.vlan_id != 0) {
1008                         /*
1009                          * The VFTA is a 4096b bit-field, each identifying
1010                          * a single VLAN ID.  The following operations
1011                          * determine which 32b entry (i.e. offset) into the
1012                          * array we want to set the VLAN ID (i.e. bit) of
1013                          * the manageability unit.
1014                          */
1015                         vfta_offset = (hw->mng_cookie.vlan_id >>
1016                                        E1000_VFTA_ENTRY_SHIFT) &
1017                                       E1000_VFTA_ENTRY_MASK;
1018                         vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id &
1019                                                E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
1020                 }
1021         }
1022         for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
1023                 /*
1024                  * If the offset we want to clear is the same offset of the
1025                  * manageability VLAN ID, then clear all bits except that of
1026                  * the manageability unit.
1027                  */
1028                 vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
1029                 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value);
1030                 e1e_flush();
1031         }
1032 }
1033
1034 /**
1035  *  e1000_check_mng_mode_82574 - Check manageability is enabled
1036  *  @hw: pointer to the HW structure
1037  *
1038  *  Reads the NVM Initialization Control Word 2 and returns true
1039  *  (>0) if any manageability is enabled, else false (0).
1040  **/
1041 static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
1042 {
1043         u16 data;
1044
1045         e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
1046         return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
1047 }
1048
1049 /**
1050  *  e1000_led_on_82574 - Turn LED on
1051  *  @hw: pointer to the HW structure
1052  *
1053  *  Turn LED on.
1054  **/
1055 static s32 e1000_led_on_82574(struct e1000_hw *hw)
1056 {
1057         u32 ctrl;
1058         u32 i;
1059
1060         ctrl = hw->mac.ledctl_mode2;
1061         if (!(E1000_STATUS_LU & er32(STATUS))) {
1062                 /*
1063                  * If no link, then turn LED on by setting the invert bit
1064                  * for each LED that's "on" (0x0E) in ledctl_mode2.
1065                  */
1066                 for (i = 0; i < 4; i++)
1067                         if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
1068                             E1000_LEDCTL_MODE_LED_ON)
1069                                 ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
1070         }
1071         ew32(LEDCTL, ctrl);
1072
1073         return 0;
1074 }
1075
1076 /**
1077  *  e1000_update_mc_addr_list_82571 - Update Multicast addresses
1078  *  @hw: pointer to the HW structure
1079  *  @mc_addr_list: array of multicast addresses to program
1080  *  @mc_addr_count: number of multicast addresses to program
1081  *  @rar_used_count: the first RAR register free to program
1082  *  @rar_count: total number of supported Receive Address Registers
1083  *
1084  *  Updates the Receive Address Registers and Multicast Table Array.
1085  *  The caller must have a packed mc_addr_list of multicast addresses.
1086  *  The parameter rar_count will usually be hw->mac.rar_entry_count
1087  *  unless there are workarounds that change this.
1088  **/
1089 static void e1000_update_mc_addr_list_82571(struct e1000_hw *hw,
1090                                             u8 *mc_addr_list,
1091                                             u32 mc_addr_count,
1092                                             u32 rar_used_count,
1093                                             u32 rar_count)
1094 {
1095         if (e1000e_get_laa_state_82571(hw))
1096                 rar_count--;
1097
1098         e1000e_update_mc_addr_list_generic(hw, mc_addr_list, mc_addr_count,
1099                                            rar_used_count, rar_count);
1100 }
1101
1102 /**
1103  *  e1000_setup_link_82571 - Setup flow control and link settings
1104  *  @hw: pointer to the HW structure
1105  *
1106  *  Determines which flow control settings to use, then configures flow
1107  *  control.  Calls the appropriate media-specific link configuration
1108  *  function.  Assuming the adapter has a valid link partner, a valid link
1109  *  should be established.  Assumes the hardware has previously been reset
1110  *  and the transmitter and receiver are not enabled.
1111  **/
1112 static s32 e1000_setup_link_82571(struct e1000_hw *hw)
1113 {
1114         /*
1115          * 82573 does not have a word in the NVM to determine
1116          * the default flow control setting, so we explicitly
1117          * set it to full.
1118          */
1119         if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
1120             hw->fc.type == e1000_fc_default)
1121                 hw->fc.type = e1000_fc_full;
1122
1123         return e1000e_setup_link(hw);
1124 }
1125
1126 /**
1127  *  e1000_setup_copper_link_82571 - Configure copper link settings
1128  *  @hw: pointer to the HW structure
1129  *
1130  *  Configures the link for auto-neg or forced speed and duplex.  Then we check
1131  *  for link, once link is established calls to configure collision distance
1132  *  and flow control are called.
1133  **/
1134 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
1135 {
1136         u32 ctrl;
1137         u32 led_ctrl;
1138         s32 ret_val;
1139
1140         ctrl = er32(CTRL);
1141         ctrl |= E1000_CTRL_SLU;
1142         ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1143         ew32(CTRL, ctrl);
1144
1145         switch (hw->phy.type) {
1146         case e1000_phy_m88:
1147         case e1000_phy_bm:
1148                 ret_val = e1000e_copper_link_setup_m88(hw);
1149                 break;
1150         case e1000_phy_igp_2:
1151                 ret_val = e1000e_copper_link_setup_igp(hw);
1152                 /* Setup activity LED */
1153                 led_ctrl = er32(LEDCTL);
1154                 led_ctrl &= IGP_ACTIVITY_LED_MASK;
1155                 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
1156                 ew32(LEDCTL, led_ctrl);
1157                 break;
1158         default:
1159                 return -E1000_ERR_PHY;
1160                 break;
1161         }
1162
1163         if (ret_val)
1164                 return ret_val;
1165
1166         ret_val = e1000e_setup_copper_link(hw);
1167
1168         return ret_val;
1169 }
1170
1171 /**
1172  *  e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes
1173  *  @hw: pointer to the HW structure
1174  *
1175  *  Configures collision distance and flow control for fiber and serdes links.
1176  *  Upon successful setup, poll for link.
1177  **/
1178 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
1179 {
1180         switch (hw->mac.type) {
1181         case e1000_82571:
1182         case e1000_82572:
1183                 /*
1184                  * If SerDes loopback mode is entered, there is no form
1185                  * of reset to take the adapter out of that mode.  So we
1186                  * have to explicitly take the adapter out of loopback
1187                  * mode.  This prevents drivers from twiddling their thumbs
1188                  * if another tool failed to take it out of loopback mode.
1189                  */
1190                 ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1191                 break;
1192         default:
1193                 break;
1194         }
1195
1196         return e1000e_setup_fiber_serdes_link(hw);
1197 }
1198
1199 /**
1200  *  e1000_valid_led_default_82571 - Verify a valid default LED config
1201  *  @hw: pointer to the HW structure
1202  *  @data: pointer to the NVM (EEPROM)
1203  *
1204  *  Read the EEPROM for the current default LED configuration.  If the
1205  *  LED configuration is not valid, set to a valid LED configuration.
1206  **/
1207 static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
1208 {
1209         s32 ret_val;
1210
1211         ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
1212         if (ret_val) {
1213                 hw_dbg(hw, "NVM Read Error\n");
1214                 return ret_val;
1215         }
1216
1217         if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
1218             *data == ID_LED_RESERVED_F746)
1219                 *data = ID_LED_DEFAULT_82573;
1220         else if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
1221                 *data = ID_LED_DEFAULT;
1222
1223         return 0;
1224 }
1225
1226 /**
1227  *  e1000e_get_laa_state_82571 - Get locally administered address state
1228  *  @hw: pointer to the HW structure
1229  *
1230  *  Retrieve and return the current locally administered address state.
1231  **/
1232 bool e1000e_get_laa_state_82571(struct e1000_hw *hw)
1233 {
1234         if (hw->mac.type != e1000_82571)
1235                 return 0;
1236
1237         return hw->dev_spec.e82571.laa_is_present;
1238 }
1239
1240 /**
1241  *  e1000e_set_laa_state_82571 - Set locally administered address state
1242  *  @hw: pointer to the HW structure
1243  *  @state: enable/disable locally administered address
1244  *
1245  *  Enable/Disable the current locally administers address state.
1246  **/
1247 void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state)
1248 {
1249         if (hw->mac.type != e1000_82571)
1250                 return;
1251
1252         hw->dev_spec.e82571.laa_is_present = state;
1253
1254         /* If workaround is activated... */
1255         if (state)
1256                 /*
1257                  * Hold a copy of the LAA in RAR[14] This is done so that
1258                  * between the time RAR[0] gets clobbered and the time it
1259                  * gets fixed, the actual LAA is in one of the RARs and no
1260                  * incoming packets directed to this port are dropped.
1261                  * Eventually the LAA will be in RAR[0] and RAR[14].
1262                  */
1263                 e1000e_rar_set(hw, hw->mac.addr, hw->mac.rar_entry_count - 1);
1264 }
1265
1266 /**
1267  *  e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum
1268  *  @hw: pointer to the HW structure
1269  *
1270  *  Verifies that the EEPROM has completed the update.  After updating the
1271  *  EEPROM, we need to check bit 15 in work 0x23 for the checksum fix.  If
1272  *  the checksum fix is not implemented, we need to set the bit and update
1273  *  the checksum.  Otherwise, if bit 15 is set and the checksum is incorrect,
1274  *  we need to return bad checksum.
1275  **/
1276 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
1277 {
1278         struct e1000_nvm_info *nvm = &hw->nvm;
1279         s32 ret_val;
1280         u16 data;
1281
1282         if (nvm->type != e1000_nvm_flash_hw)
1283                 return 0;
1284
1285         /*
1286          * Check bit 4 of word 10h.  If it is 0, firmware is done updating
1287          * 10h-12h.  Checksum may need to be fixed.
1288          */
1289         ret_val = e1000_read_nvm(hw, 0x10, 1, &data);
1290         if (ret_val)
1291                 return ret_val;
1292
1293         if (!(data & 0x10)) {
1294                 /*
1295                  * Read 0x23 and check bit 15.  This bit is a 1
1296                  * when the checksum has already been fixed.  If
1297                  * the checksum is still wrong and this bit is a
1298                  * 1, we need to return bad checksum.  Otherwise,
1299                  * we need to set this bit to a 1 and update the
1300                  * checksum.
1301                  */
1302                 ret_val = e1000_read_nvm(hw, 0x23, 1, &data);
1303                 if (ret_val)
1304                         return ret_val;
1305
1306                 if (!(data & 0x8000)) {
1307                         data |= 0x8000;
1308                         ret_val = e1000_write_nvm(hw, 0x23, 1, &data);
1309                         if (ret_val)
1310                                 return ret_val;
1311                         ret_val = e1000e_update_nvm_checksum(hw);
1312                 }
1313         }
1314
1315         return 0;
1316 }
1317
1318 /**
1319  *  e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters
1320  *  @hw: pointer to the HW structure
1321  *
1322  *  Clears the hardware counters by reading the counter registers.
1323  **/
1324 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
1325 {
1326         u32 temp;
1327
1328         e1000e_clear_hw_cntrs_base(hw);
1329
1330         temp = er32(PRC64);
1331         temp = er32(PRC127);
1332         temp = er32(PRC255);
1333         temp = er32(PRC511);
1334         temp = er32(PRC1023);
1335         temp = er32(PRC1522);
1336         temp = er32(PTC64);
1337         temp = er32(PTC127);
1338         temp = er32(PTC255);
1339         temp = er32(PTC511);
1340         temp = er32(PTC1023);
1341         temp = er32(PTC1522);
1342
1343         temp = er32(ALGNERRC);
1344         temp = er32(RXERRC);
1345         temp = er32(TNCRS);
1346         temp = er32(CEXTERR);
1347         temp = er32(TSCTC);
1348         temp = er32(TSCTFC);
1349
1350         temp = er32(MGTPRC);
1351         temp = er32(MGTPDC);
1352         temp = er32(MGTPTC);
1353
1354         temp = er32(IAC);
1355         temp = er32(ICRXOC);
1356
1357         temp = er32(ICRXPTC);
1358         temp = er32(ICRXATC);
1359         temp = er32(ICTXPTC);
1360         temp = er32(ICTXATC);
1361         temp = er32(ICTXQEC);
1362         temp = er32(ICTXQMTC);
1363         temp = er32(ICRXDMTC);
1364 }
1365
1366 static struct e1000_mac_operations e82571_mac_ops = {
1367         /* .check_mng_mode: mac type dependent */
1368         /* .check_for_link: media type dependent */
1369         .cleanup_led            = e1000e_cleanup_led_generic,
1370         .clear_hw_cntrs         = e1000_clear_hw_cntrs_82571,
1371         .get_bus_info           = e1000e_get_bus_info_pcie,
1372         /* .get_link_up_info: media type dependent */
1373         /* .led_on: mac type dependent */
1374         .led_off                = e1000e_led_off_generic,
1375         .update_mc_addr_list    = e1000_update_mc_addr_list_82571,
1376         .reset_hw               = e1000_reset_hw_82571,
1377         .init_hw                = e1000_init_hw_82571,
1378         .setup_link             = e1000_setup_link_82571,
1379         /* .setup_physical_interface: media type dependent */
1380 };
1381
1382 static struct e1000_phy_operations e82_phy_ops_igp = {
1383         .acquire_phy            = e1000_get_hw_semaphore_82571,
1384         .check_reset_block      = e1000e_check_reset_block_generic,
1385         .commit_phy             = NULL,
1386         .force_speed_duplex     = e1000e_phy_force_speed_duplex_igp,
1387         .get_cfg_done           = e1000_get_cfg_done_82571,
1388         .get_cable_length       = e1000e_get_cable_length_igp_2,
1389         .get_phy_info           = e1000e_get_phy_info_igp,
1390         .read_phy_reg           = e1000e_read_phy_reg_igp,
1391         .release_phy            = e1000_put_hw_semaphore_82571,
1392         .reset_phy              = e1000e_phy_hw_reset_generic,
1393         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1394         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1395         .write_phy_reg          = e1000e_write_phy_reg_igp,
1396 };
1397
1398 static struct e1000_phy_operations e82_phy_ops_m88 = {
1399         .acquire_phy            = e1000_get_hw_semaphore_82571,
1400         .check_reset_block      = e1000e_check_reset_block_generic,
1401         .commit_phy             = e1000e_phy_sw_reset,
1402         .force_speed_duplex     = e1000e_phy_force_speed_duplex_m88,
1403         .get_cfg_done           = e1000e_get_cfg_done,
1404         .get_cable_length       = e1000e_get_cable_length_m88,
1405         .get_phy_info           = e1000e_get_phy_info_m88,
1406         .read_phy_reg           = e1000e_read_phy_reg_m88,
1407         .release_phy            = e1000_put_hw_semaphore_82571,
1408         .reset_phy              = e1000e_phy_hw_reset_generic,
1409         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1410         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1411         .write_phy_reg          = e1000e_write_phy_reg_m88,
1412 };
1413
1414 static struct e1000_phy_operations e82_phy_ops_bm = {
1415         .acquire_phy            = e1000_get_hw_semaphore_82571,
1416         .check_reset_block      = e1000e_check_reset_block_generic,
1417         .commit_phy             = e1000e_phy_sw_reset,
1418         .force_speed_duplex     = e1000e_phy_force_speed_duplex_m88,
1419         .get_cfg_done           = e1000e_get_cfg_done,
1420         .get_cable_length       = e1000e_get_cable_length_m88,
1421         .get_phy_info           = e1000e_get_phy_info_m88,
1422         .read_phy_reg           = e1000e_read_phy_reg_bm2,
1423         .release_phy            = e1000_put_hw_semaphore_82571,
1424         .reset_phy              = e1000e_phy_hw_reset_generic,
1425         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1426         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1427         .write_phy_reg          = e1000e_write_phy_reg_bm2,
1428 };
1429
1430 static struct e1000_nvm_operations e82571_nvm_ops = {
1431         .acquire_nvm            = e1000_acquire_nvm_82571,
1432         .read_nvm               = e1000e_read_nvm_eerd,
1433         .release_nvm            = e1000_release_nvm_82571,
1434         .update_nvm             = e1000_update_nvm_checksum_82571,
1435         .valid_led_default      = e1000_valid_led_default_82571,
1436         .validate_nvm           = e1000_validate_nvm_checksum_82571,
1437         .write_nvm              = e1000_write_nvm_82571,
1438 };
1439
1440 struct e1000_info e1000_82571_info = {
1441         .mac                    = e1000_82571,
1442         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1443                                   | FLAG_HAS_JUMBO_FRAMES
1444                                   | FLAG_HAS_WOL
1445                                   | FLAG_APME_IN_CTRL3
1446                                   | FLAG_RX_CSUM_ENABLED
1447                                   | FLAG_HAS_CTRLEXT_ON_LOAD
1448                                   | FLAG_HAS_SMART_POWER_DOWN
1449                                   | FLAG_RESET_OVERWRITES_LAA /* errata */
1450                                   | FLAG_TARC_SPEED_MODE_BIT /* errata */
1451                                   | FLAG_APME_CHECK_PORT_B,
1452         .pba                    = 38,
1453         .get_variants           = e1000_get_variants_82571,
1454         .mac_ops                = &e82571_mac_ops,
1455         .phy_ops                = &e82_phy_ops_igp,
1456         .nvm_ops                = &e82571_nvm_ops,
1457 };
1458
1459 struct e1000_info e1000_82572_info = {
1460         .mac                    = e1000_82572,
1461         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1462                                   | FLAG_HAS_JUMBO_FRAMES
1463                                   | FLAG_HAS_WOL
1464                                   | FLAG_APME_IN_CTRL3
1465                                   | FLAG_RX_CSUM_ENABLED
1466                                   | FLAG_HAS_CTRLEXT_ON_LOAD
1467                                   | FLAG_TARC_SPEED_MODE_BIT, /* errata */
1468         .pba                    = 38,
1469         .get_variants           = e1000_get_variants_82571,
1470         .mac_ops                = &e82571_mac_ops,
1471         .phy_ops                = &e82_phy_ops_igp,
1472         .nvm_ops                = &e82571_nvm_ops,
1473 };
1474
1475 struct e1000_info e1000_82573_info = {
1476         .mac                    = e1000_82573,
1477         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1478                                   | FLAG_HAS_JUMBO_FRAMES
1479                                   | FLAG_HAS_WOL
1480                                   | FLAG_APME_IN_CTRL3
1481                                   | FLAG_RX_CSUM_ENABLED
1482                                   | FLAG_HAS_SMART_POWER_DOWN
1483                                   | FLAG_HAS_AMT
1484                                   | FLAG_HAS_ERT
1485                                   | FLAG_HAS_SWSM_ON_LOAD,
1486         .pba                    = 20,
1487         .get_variants           = e1000_get_variants_82571,
1488         .mac_ops                = &e82571_mac_ops,
1489         .phy_ops                = &e82_phy_ops_m88,
1490         .nvm_ops                = &e82571_nvm_ops,
1491 };
1492
1493 struct e1000_info e1000_82574_info = {
1494         .mac                    = e1000_82574,
1495         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1496                                   | FLAG_HAS_MSIX
1497                                   | FLAG_HAS_JUMBO_FRAMES
1498                                   | FLAG_HAS_WOL
1499                                   | FLAG_APME_IN_CTRL3
1500                                   | FLAG_RX_CSUM_ENABLED
1501                                   | FLAG_HAS_SMART_POWER_DOWN
1502                                   | FLAG_HAS_AMT
1503                                   | FLAG_HAS_CTRLEXT_ON_LOAD,
1504         .pba                    = 20,
1505         .get_variants           = e1000_get_variants_82571,
1506         .mac_ops                = &e82571_mac_ops,
1507         .phy_ops                = &e82_phy_ops_bm,
1508         .nvm_ops                = &e82571_nvm_ops,
1509 };
1510