drivers/net/ethernet/intel/e1000e/82571.c

   1 /* Intel PRO/1000 Linux driver
   2  * Copyright(c) 1999 - 2015 Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * The full GNU General Public License is included in this distribution in
  14  * the file called "COPYING".
  15  *
  16  * Contact Information:
  17  * Linux NICS <linux.nics@intel.com>
  18  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  19  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  20  */
  21
  22 /* 82571EB Gigabit Ethernet Controller
  23  * 82571EB Gigabit Ethernet Controller (Copper)
  24  * 82571EB Gigabit Ethernet Controller (Fiber)
  25  * 82571EB Dual Port Gigabit Mezzanine Adapter
  26  * 82571EB Quad Port Gigabit Mezzanine Adapter
  27  * 82571PT Gigabit PT Quad Port Server ExpressModule
  28  * 82572EI Gigabit Ethernet Controller (Copper)
  29  * 82572EI Gigabit Ethernet Controller (Fiber)
  30  * 82572EI Gigabit Ethernet Controller
  31  * 82573V Gigabit Ethernet Controller (Copper)
  32  * 82573E Gigabit Ethernet Controller (Copper)
  33  * 82573L Gigabit Ethernet Controller
  34  * 82574L Gigabit Network Connection
  35  * 82583V Gigabit Network Connection
  36  */
  37
  38 #include "e1000.h"
  39
  40 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
  41 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
  42 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
  43 static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw);
  44 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
  45                                       u16 words, u16 *data);
  46 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
  47 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
  48 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
  49 static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
  50 static s32 e1000_led_on_82574(struct e1000_hw *hw);
  51 static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw);
  52 static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw);
  53 static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw);
  54 static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw);
  55 static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw);
  56 static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active);
  57 static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active);
  58
  59 /**
  60  *  e1000_init_phy_params_82571 - Init PHY func ptrs.
  61  *  @hw: pointer to the HW structure
  62  **/
  63 static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
  64 {
  65         struct e1000_phy_info *phy = &hw->phy;
  66         s32 ret_val;
  67
  68         if (hw->phy.media_type != e1000_media_type_copper) {
  69                 phy->type = e1000_phy_none;
  70                 return 0;
  71         }
  72
  73         phy->addr = 1;
  74         phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
  75         phy->reset_delay_us = 100;
  76
  77         phy->ops.power_up = e1000_power_up_phy_copper;
  78         phy->ops.power_down = e1000_power_down_phy_copper_82571;
  79
  80         switch (hw->mac.type) {
  81         case e1000_82571:
  82         case e1000_82572:
  83                 phy->type = e1000_phy_igp_2;
  84                 break;
  85         case e1000_82573:
  86                 phy->type = e1000_phy_m88;
  87                 break;
  88         case e1000_82574:
  89         case e1000_82583:
  90                 phy->type = e1000_phy_bm;
  91                 phy->ops.acquire = e1000_get_hw_semaphore_82574;
  92                 phy->ops.release = e1000_put_hw_semaphore_82574;
  93                 phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82574;
  94                 phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82574;
  95                 break;
  96         default:
  97                 return -E1000_ERR_PHY;
  98         }
  99
 100         /* This can only be done after all function pointers are setup. */
 101         ret_val = e1000_get_phy_id_82571(hw);
 102         if (ret_val) {
 103                 e_dbg("Error getting PHY ID\n");
 104                 return ret_val;
 105         }
 106
 107         /* Verify phy id */
 108         switch (hw->mac.type) {
 109         case e1000_82571:
 110         case e1000_82572:
 111                 if (phy->id != IGP01E1000_I_PHY_ID)
 112                         ret_val = -E1000_ERR_PHY;
 113                 break;
 114         case e1000_82573:
 115                 if (phy->id != M88E1111_I_PHY_ID)
 116                         ret_val = -E1000_ERR_PHY;
 117                 break;
 118         case e1000_82574:
 119         case e1000_82583:
 120                 if (phy->id != BME1000_E_PHY_ID_R2)
 121                         ret_val = -E1000_ERR_PHY;
 122                 break;
 123         default:
 124                 ret_val = -E1000_ERR_PHY;
 125                 break;
 126         }
 127
 128         if (ret_val)
 129                 e_dbg("PHY ID unknown: type = 0x%08x\n", phy->id);
 130
 131         return ret_val;
 132 }
 133
 134 /**
 135  *  e1000_init_nvm_params_82571 - Init NVM func ptrs.
 136  *  @hw: pointer to the HW structure
 137  **/
 138 static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
 139 {
 140         struct e1000_nvm_info *nvm = &hw->nvm;
 141         u32 eecd = er32(EECD);
 142         u16 size;
 143
 144         nvm->opcode_bits = 8;
 145         nvm->delay_usec = 1;
 146         switch (nvm->override) {
 147         case e1000_nvm_override_spi_large:
 148                 nvm->page_size = 32;
 149                 nvm->address_bits = 16;
 150                 break;
 151         case e1000_nvm_override_spi_small:
 152                 nvm->page_size = 8;
 153                 nvm->address_bits = 8;
 154                 break;
 155         default:
 156                 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
 157                 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
 158                 break;
 159         }
 160
 161         switch (hw->mac.type) {
 162         case e1000_82573:
 163         case e1000_82574:
 164         case e1000_82583:
 165                 if (((eecd >> 15) & 0x3) == 0x3) {
 166                         nvm->type = e1000_nvm_flash_hw;
 167                         nvm->word_size = 2048;
 168                         /* Autonomous Flash update bit must be cleared due
 169                          * to Flash update issue.
 170                          */
 171                         eecd &= ~E1000_EECD_AUPDEN;
 172                         ew32(EECD, eecd);
 173                         break;
 174                 }
 175                 /* Fall Through */
 176         default:
 177                 nvm->type = e1000_nvm_eeprom_spi;
 178                 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
 179                              E1000_EECD_SIZE_EX_SHIFT);
 180                 /* Added to a constant, "size" becomes the left-shift value
 181                  * for setting word_size.
 182                  */
 183                 size += NVM_WORD_SIZE_BASE_SHIFT;
 184
 185                 /* EEPROM access above 16k is unsupported */
 186                 if (size > 14)
 187                         size = 14;
 188                 nvm->word_size = BIT(size);
 189                 break;
 190         }
 191
 192         /* Function Pointers */
 193         switch (hw->mac.type) {
 194         case e1000_82574:
 195         case e1000_82583:
 196                 nvm->ops.acquire = e1000_get_hw_semaphore_82574;
 197                 nvm->ops.release = e1000_put_hw_semaphore_82574;
 198                 break;
 199         default:
 200                 break;
 201         }
 202
 203         return 0;
 204 }
 205
 206 /**
 207  *  e1000_init_mac_params_82571 - Init MAC func ptrs.
 208  *  @hw: pointer to the HW structure
 209  **/
 210 static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 211 {
 212         struct e1000_mac_info *mac = &hw->mac;
 213         u32 swsm = 0;
 214         u32 swsm2 = 0;
 215         bool force_clear_smbi = false;
 216
 217         /* Set media type and media-dependent function pointers */
 218         switch (hw->adapter->pdev->device) {
 219         case E1000_DEV_ID_82571EB_FIBER:
 220         case E1000_DEV_ID_82572EI_FIBER:
 221         case E1000_DEV_ID_82571EB_QUAD_FIBER:
 222                 hw->phy.media_type = e1000_media_type_fiber;
 223                 mac->ops.setup_physical_interface =
 224                     e1000_setup_fiber_serdes_link_82571;
 225                 mac->ops.check_for_link = e1000e_check_for_fiber_link;
 226                 mac->ops.get_link_up_info =
 227                     e1000e_get_speed_and_duplex_fiber_serdes;
 228                 break;
 229         case E1000_DEV_ID_82571EB_SERDES:
 230         case E1000_DEV_ID_82571EB_SERDES_DUAL:
 231         case E1000_DEV_ID_82571EB_SERDES_QUAD:
 232         case E1000_DEV_ID_82572EI_SERDES:
 233                 hw->phy.media_type = e1000_media_type_internal_serdes;
 234                 mac->ops.setup_physical_interface =
 235                     e1000_setup_fiber_serdes_link_82571;
 236                 mac->ops.check_for_link = e1000_check_for_serdes_link_82571;
 237                 mac->ops.get_link_up_info =
 238                     e1000e_get_speed_and_duplex_fiber_serdes;
 239                 break;
 240         default:
 241                 hw->phy.media_type = e1000_media_type_copper;
 242                 mac->ops.setup_physical_interface =
 243                     e1000_setup_copper_link_82571;
 244                 mac->ops.check_for_link = e1000e_check_for_copper_link;
 245                 mac->ops.get_link_up_info = e1000e_get_speed_and_duplex_copper;
 246                 break;
 247         }
 248
 249         /* Set mta register count */
 250         mac->mta_reg_count = 128;
 251         /* Set rar entry count */
 252         mac->rar_entry_count = E1000_RAR_ENTRIES;
 253         /* Adaptive IFS supported */
 254         mac->adaptive_ifs = true;
 255
 256         /* MAC-specific function pointers */
 257         switch (hw->mac.type) {
 258         case e1000_82573:
 259                 mac->ops.set_lan_id = e1000_set_lan_id_single_port;
 260                 mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
 261                 mac->ops.led_on = e1000e_led_on_generic;
 262                 mac->ops.blink_led = e1000e_blink_led_generic;
 263
 264                 /* FWSM register */
 265                 mac->has_fwsm = true;
 266                 /* ARC supported; valid only if manageability features are
 267                  * enabled.
 268                  */
 269                 mac->arc_subsystem_valid = !!(er32(FWSM) &
 270                                               E1000_FWSM_MODE_MASK);
 271                 break;
 272         case e1000_82574:
 273         case e1000_82583:
 274                 mac->ops.set_lan_id = e1000_set_lan_id_single_port;
 275                 mac->ops.check_mng_mode = e1000_check_mng_mode_82574;
 276                 mac->ops.led_on = e1000_led_on_82574;
 277                 break;
 278         default:
 279                 mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
 280                 mac->ops.led_on = e1000e_led_on_generic;
 281                 mac->ops.blink_led = e1000e_blink_led_generic;
 282
 283                 /* FWSM register */
 284                 mac->has_fwsm = true;
 285                 break;
 286         }
 287
 288         /* Ensure that the inter-port SWSM.SMBI lock bit is clear before
 289          * first NVM or PHY access. This should be done for single-port
 290          * devices, and for one port only on dual-port devices so that
 291          * for those devices we can still use the SMBI lock to synchronize
 292          * inter-port accesses to the PHY & NVM.
 293          */
 294         switch (hw->mac.type) {
 295         case e1000_82571:
 296         case e1000_82572:
 297                 swsm2 = er32(SWSM2);
 298
 299                 if (!(swsm2 & E1000_SWSM2_LOCK)) {
 300                         /* Only do this for the first interface on this card */
 301                         ew32(SWSM2, swsm2 | E1000_SWSM2_LOCK);
 302                         force_clear_smbi = true;
 303                 } else {
 304                         force_clear_smbi = false;
 305                 }
 306                 break;
 307         default:
 308                 force_clear_smbi = true;
 309                 break;
 310         }
 311
 312         if (force_clear_smbi) {
 313                 /* Make sure SWSM.SMBI is clear */
 314                 swsm = er32(SWSM);
 315                 if (swsm & E1000_SWSM_SMBI) {
 316                         /* This bit should not be set on a first interface, and
 317                          * indicates that the bootagent or EFI code has
 318                          * improperly left this bit enabled
 319                          */
 320                         e_dbg("Please update your 82571 Bootagent\n");
 321                 }
 322                 ew32(SWSM, swsm & ~E1000_SWSM_SMBI);
 323         }
 324
 325         /* Initialize device specific counter of SMBI acquisition timeouts. */
 326         hw->dev_spec.e82571.smb_counter = 0;
 327
 328         return 0;
 329 }
 330
 331 static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 332 {
 333         struct e1000_hw *hw = &adapter->hw;
 334         static int global_quad_port_a;  /* global port a indication */
 335         struct pci_dev *pdev = adapter->pdev;
 336         int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
 337         s32 rc;
 338
 339         rc = e1000_init_mac_params_82571(hw);
 340         if (rc)
 341                 return rc;
 342
 343         rc = e1000_init_nvm_params_82571(hw);
 344         if (rc)
 345                 return rc;
 346
 347         rc = e1000_init_phy_params_82571(hw);
 348         if (rc)
 349                 return rc;
 350
 351         /* tag quad port adapters first, it's used below */
 352         switch (pdev->device) {
 353         case E1000_DEV_ID_82571EB_QUAD_COPPER:
 354         case E1000_DEV_ID_82571EB_QUAD_FIBER:
 355         case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
 356         case E1000_DEV_ID_82571PT_QUAD_COPPER:
 357                 adapter->flags |= FLAG_IS_QUAD_PORT;
 358                 /* mark the first port */
 359                 if (global_quad_port_a == 0)
 360                         adapter->flags |= FLAG_IS_QUAD_PORT_A;
 361                 /* Reset for multiple quad port adapters */
 362                 global_quad_port_a++;
 363                 if (global_quad_port_a == 4)
 364                         global_quad_port_a = 0;
 365                 break;
 366         default:
 367                 break;
 368         }
 369
 370         switch (adapter->hw.mac.type) {
 371         case e1000_82571:
 372                 /* these dual ports don't have WoL on port B at all */
 373                 if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
 374                      (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
 375                      (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
 376                     (is_port_b))
 377                         adapter->flags &= ~FLAG_HAS_WOL;
 378                 /* quad ports only support WoL on port A */
 379                 if (adapter->flags & FLAG_IS_QUAD_PORT &&
 380                     (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
 381                         adapter->flags &= ~FLAG_HAS_WOL;
 382                 /* Does not support WoL on any port */
 383                 if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
 384                         adapter->flags &= ~FLAG_HAS_WOL;
 385                 break;
 386         case e1000_82573:
 387                 if (pdev->device == E1000_DEV_ID_82573L) {
 388                         adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
 389                         adapter->max_hw_frame_size = DEFAULT_JUMBO;
 390                 }
 391                 break;
 392         default:
 393                 break;
 394         }
 395
 396         return 0;
 397 }
 398
 399 /**
 400  *  e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
 401  *  @hw: pointer to the HW structure
 402  *
 403  *  Reads the PHY registers and stores the PHY ID and possibly the PHY
 404  *  revision in the hardware structure.
 405  **/
 406 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
 407 {
 408         struct e1000_phy_info *phy = &hw->phy;
 409         s32 ret_val;
 410         u16 phy_id = 0;
 411
 412         switch (hw->mac.type) {
 413         case e1000_82571:
 414         case e1000_82572:
 415                 /* The 82571 firmware may still be configuring the PHY.
 416                  * In this case, we cannot access the PHY until the
 417                  * configuration is done.  So we explicitly set the
 418                  * PHY ID.
 419                  */
 420                 phy->id = IGP01E1000_I_PHY_ID;
 421                 break;
 422         case e1000_82573:
 423                 return e1000e_get_phy_id(hw);
 424         case e1000_82574:
 425         case e1000_82583:
 426                 ret_val = e1e_rphy(hw, MII_PHYSID1, &phy_id);
 427                 if (ret_val)
 428                         return ret_val;
 429
 430                 phy->id = (u32)(phy_id << 16);
 431                 usleep_range(20, 40);
 432                 ret_val = e1e_rphy(hw, MII_PHYSID2, &phy_id);
 433                 if (ret_val)
 434                         return ret_val;
 435
 436                 phy->id |= (u32)(phy_id);
 437                 phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
 438                 break;
 439         default:
 440                 return -E1000_ERR_PHY;
 441         }
 442
 443         return 0;
 444 }
 445
 446 /**
 447  *  e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
 448  *  @hw: pointer to the HW structure
 449  *
 450  *  Acquire the HW semaphore to access the PHY or NVM
 451  **/
 452 static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
 453 {
 454         u32 swsm;
 455         s32 sw_timeout = hw->nvm.word_size + 1;
 456         s32 fw_timeout = hw->nvm.word_size + 1;
 457         s32 i = 0;
 458
 459         /* If we have timedout 3 times on trying to acquire
 460          * the inter-port SMBI semaphore, there is old code
 461          * operating on the other port, and it is not
 462          * releasing SMBI. Modify the number of times that
 463          * we try for the semaphore to interwork with this
 464          * older code.
 465          */
 466         if (hw->dev_spec.e82571.smb_counter > 2)
 467                 sw_timeout = 1;
 468
 469         /* Get the SW semaphore */
 470         while (i < sw_timeout) {
 471                 swsm = er32(SWSM);
 472                 if (!(swsm & E1000_SWSM_SMBI))
 473                         break;
 474
 475                 usleep_range(50, 100);
 476                 i++;
 477         }
 478
 479         if (i == sw_timeout) {
 480                 e_dbg("Driver can't access device - SMBI bit is set.\n");
 481                 hw->dev_spec.e82571.smb_counter++;
 482         }
 483         /* Get the FW semaphore. */
 484         for (i = 0; i < fw_timeout; i++) {
 485                 swsm = er32(SWSM);
 486                 ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
 487
 488                 /* Semaphore acquired if bit latched */
 489                 if (er32(SWSM) & E1000_SWSM_SWESMBI)
 490                         break;
 491
 492                 usleep_range(50, 100);
 493         }
 494
 495         if (i == fw_timeout) {
 496                 /* Release semaphores */
 497                 e1000_put_hw_semaphore_82571(hw);
 498                 e_dbg("Driver can't access the NVM\n");
 499                 return -E1000_ERR_NVM;
 500         }
 501
 502         return 0;
 503 }
 504
 505 /**
 506  *  e1000_put_hw_semaphore_82571 - Release hardware semaphore
 507  *  @hw: pointer to the HW structure
 508  *
 509  *  Release hardware semaphore used to access the PHY or NVM
 510  **/
 511 static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
 512 {
 513         u32 swsm;
 514
 515         swsm = er32(SWSM);
 516         swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
 517         ew32(SWSM, swsm);
 518 }
 519
 520 /**
 521  *  e1000_get_hw_semaphore_82573 - Acquire hardware semaphore
 522  *  @hw: pointer to the HW structure
 523  *
 524  *  Acquire the HW semaphore during reset.
 525  *
 526  **/
 527 static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw)
 528 {
 529         u32 extcnf_ctrl;
 530         s32 i = 0;
 531
 532         extcnf_ctrl = er32(EXTCNF_CTRL);
 533         do {
 534                 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
 535                 ew32(EXTCNF_CTRL, extcnf_ctrl);
 536                 extcnf_ctrl = er32(EXTCNF_CTRL);
 537
 538                 if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
 539                         break;
 540
 541                 usleep_range(2000, 4000);
 542                 i++;
 543         } while (i < MDIO_OWNERSHIP_TIMEOUT);
 544
 545         if (i == MDIO_OWNERSHIP_TIMEOUT) {
 546                 /* Release semaphores */
 547                 e1000_put_hw_semaphore_82573(hw);
 548                 e_dbg("Driver can't access the PHY\n");
 549                 return -E1000_ERR_PHY;
 550         }
 551
 552         return 0;
 553 }
 554
 555 /**
 556  *  e1000_put_hw_semaphore_82573 - Release hardware semaphore
 557  *  @hw: pointer to the HW structure
 558  *
 559  *  Release hardware semaphore used during reset.
 560  *
 561  **/
 562 static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw)
 563 {
 564         u32 extcnf_ctrl;
 565
 566         extcnf_ctrl = er32(EXTCNF_CTRL);
 567         extcnf_ctrl &= ~E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
 568         ew32(EXTCNF_CTRL, extcnf_ctrl);
 569 }
 570
 571 static DEFINE_MUTEX(swflag_mutex);
 572
 573 /**
 574  *  e1000_get_hw_semaphore_82574 - Acquire hardware semaphore
 575  *  @hw: pointer to the HW structure
 576  *
 577  *  Acquire the HW semaphore to access the PHY or NVM.
 578  *
 579  **/
 580 static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw)
 581 {
 582         s32 ret_val;
 583
 584         mutex_lock(&swflag_mutex);
 585         ret_val = e1000_get_hw_semaphore_82573(hw);
 586         if (ret_val)
 587                 mutex_unlock(&swflag_mutex);
 588         return ret_val;
 589 }
 590
 591 /**
 592  *  e1000_put_hw_semaphore_82574 - Release hardware semaphore
 593  *  @hw: pointer to the HW structure
 594  *
 595  *  Release hardware semaphore used to access the PHY or NVM
 596  *
 597  **/
 598 static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw)
 599 {
 600         e1000_put_hw_semaphore_82573(hw);
 601         mutex_unlock(&swflag_mutex);
 602 }
 603
 604 /**
 605  *  e1000_set_d0_lplu_state_82574 - Set Low Power Linkup D0 state
 606  *  @hw: pointer to the HW structure
 607  *  @active: true to enable LPLU, false to disable
 608  *
 609  *  Sets the LPLU D0 state according to the active flag.
 610  *  LPLU will not be activated unless the
 611  *  device autonegotiation advertisement meets standards of
 612  *  either 10 or 10/100 or 10/100/1000 at all duplexes.
 613  *  This is a function pointer entry point only called by
 614  *  PHY setup routines.
 615  **/
 616 static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active)
 617 {
 618         u32 data = er32(POEMB);
 619
 620         if (active)
 621                 data |= E1000_PHY_CTRL_D0A_LPLU;
 622         else
 623                 data &= ~E1000_PHY_CTRL_D0A_LPLU;
 624
 625         ew32(POEMB, data);
 626         return 0;
 627 }
 628
 629 /**
 630  *  e1000_set_d3_lplu_state_82574 - Sets low power link up state for D3
 631  *  @hw: pointer to the HW structure
 632  *  @active: boolean used to enable/disable lplu
 633  *
 634  *  The low power link up (lplu) state is set to the power management level D3
 635  *  when active is true, else clear lplu for D3. LPLU
 636  *  is used during Dx states where the power conservation is most important.
 637  *  During driver activity, SmartSpeed should be enabled so performance is
 638  *  maintained.
 639  **/
 640 static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active)
 641 {
 642         u32 data = er32(POEMB);
 643
 644         if (!active) {
 645                 data &= ~E1000_PHY_CTRL_NOND0A_LPLU;
 646         } else if ((hw->phy.autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
 647                    (hw->phy.autoneg_advertised == E1000_ALL_NOT_GIG) ||
 648                    (hw->phy.autoneg_advertised == E1000_ALL_10_SPEED)) {
 649                 data |= E1000_PHY_CTRL_NOND0A_LPLU;
 650         }
 651
 652         ew32(POEMB, data);
 653         return 0;
 654 }
 655
 656 /**
 657  *  e1000_acquire_nvm_82571 - Request for access to the EEPROM
 658  *  @hw: pointer to the HW structure
 659  *
 660  *  To gain access to the EEPROM, first we must obtain a hardware semaphore.
 661  *  Then for non-82573 hardware, set the EEPROM access request bit and wait
 662  *  for EEPROM access grant bit.  If the access grant bit is not set, release
 663  *  hardware semaphore.
 664  **/
 665 static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
 666 {
 667         s32 ret_val;
 668
 669         ret_val = e1000_get_hw_semaphore_82571(hw);
 670         if (ret_val)
 671                 return ret_val;
 672
 673         switch (hw->mac.type) {
 674         case e1000_82573:
 675                 break;
 676         default:
 677                 ret_val = e1000e_acquire_nvm(hw);
 678                 break;
 679         }
 680
 681         if (ret_val)
 682                 e1000_put_hw_semaphore_82571(hw);
 683
 684         return ret_val;
 685 }
 686
 687 /**
 688  *  e1000_release_nvm_82571 - Release exclusive access to EEPROM
 689  *  @hw: pointer to the HW structure
 690  *
 691  *  Stop any current commands to the EEPROM and clear the EEPROM request bit.
 692  **/
 693 static void e1000_release_nvm_82571(struct e1000_hw *hw)
 694 {
 695         e1000e_release_nvm(hw);
 696         e1000_put_hw_semaphore_82571(hw);
 697 }
 698
 699 /**
 700  *  e1000_write_nvm_82571 - Write to EEPROM using appropriate interface
 701  *  @hw: pointer to the HW structure
 702  *  @offset: offset within the EEPROM to be written to
 703  *  @words: number of words to write
 704  *  @data: 16 bit word(s) to be written to the EEPROM
 705  *
 706  *  For non-82573 silicon, write data to EEPROM at offset using SPI interface.
 707  *
 708  *  If e1000e_update_nvm_checksum is not called after this function, the
 709  *  EEPROM will most likely contain an invalid checksum.
 710  **/
 711 static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
 712                                  u16 *data)
 713 {
 714         s32 ret_val;
 715
 716         switch (hw->mac.type) {
 717         case e1000_82573:
 718         case e1000_82574:
 719         case e1000_82583:
 720                 ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
 721                 break;
 722         case e1000_82571:
 723         case e1000_82572:
 724                 ret_val = e1000e_write_nvm_spi(hw, offset, words, data);
 725                 break;
 726         default:
 727                 ret_val = -E1000_ERR_NVM;
 728                 break;
 729         }
 730
 731         return ret_val;
 732 }
 733
 734 /**
 735  *  e1000_update_nvm_checksum_82571 - Update EEPROM checksum
 736  *  @hw: pointer to the HW structure
 737  *
 738  *  Updates the EEPROM checksum by reading/adding each word of the EEPROM
 739  *  up to the checksum.  Then calculates the EEPROM checksum and writes the
 740  *  value to the EEPROM.
 741  **/
 742 static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
 743 {
 744         u32 eecd;
 745         s32 ret_val;
 746         u16 i;
 747
 748         ret_val = e1000e_update_nvm_checksum_generic(hw);
 749         if (ret_val)
 750                 return ret_val;
 751
 752         /* If our nvm is an EEPROM, then we're done
 753          * otherwise, commit the checksum to the flash NVM.
 754          */
 755         if (hw->nvm.type != e1000_nvm_flash_hw)
 756                 return 0;
 757
 758         /* Check for pending operations. */
 759         for (i = 0; i < E1000_FLASH_UPDATES; i++) {
 760                 usleep_range(1000, 2000);
 761                 if (!(er32(EECD) & E1000_EECD_FLUPD))
 762                         break;
 763         }
 764
 765         if (i == E1000_FLASH_UPDATES)
 766                 return -E1000_ERR_NVM;
 767
 768         /* Reset the firmware if using STM opcode. */
 769         if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) {
 770                 /* The enabling of and the actual reset must be done
 771                  * in two write cycles.
 772                  */
 773                 ew32(HICR, E1000_HICR_FW_RESET_ENABLE);
 774                 e1e_flush();
 775                 ew32(HICR, E1000_HICR_FW_RESET);
 776         }
 777
 778         /* Commit the write to flash */
 779         eecd = er32(EECD) | E1000_EECD_FLUPD;
 780         ew32(EECD, eecd);
 781
 782         for (i = 0; i < E1000_FLASH_UPDATES; i++) {
 783                 usleep_range(1000, 2000);
 784                 if (!(er32(EECD) & E1000_EECD_FLUPD))
 785                         break;
 786         }
 787
 788         if (i == E1000_FLASH_UPDATES)
 789                 return -E1000_ERR_NVM;
 790
 791         return 0;
 792 }
 793
 794 /**
 795  *  e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum
 796  *  @hw: pointer to the HW structure
 797  *
 798  *  Calculates the EEPROM checksum by reading/adding each word of the EEPROM
 799  *  and then verifies that the sum of the EEPROM is equal to 0xBABA.
 800  **/
 801 static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw)
 802 {
 803         if (hw->nvm.type == e1000_nvm_flash_hw)
 804                 e1000_fix_nvm_checksum_82571(hw);
 805
 806         return e1000e_validate_nvm_checksum_generic(hw);
 807 }
 808
 809 /**
 810  *  e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon
 811  *  @hw: pointer to the HW structure
 812  *  @offset: offset within the EEPROM to be written to
 813  *  @words: number of words to write
 814  *  @data: 16 bit word(s) to be written to the EEPROM
 815  *
 816  *  After checking for invalid values, poll the EEPROM to ensure the previous
 817  *  command has completed before trying to write the next word.  After write
 818  *  poll for completion.
 819  *
 820  *  If e1000e_update_nvm_checksum is not called after this function, the
 821  *  EEPROM will most likely contain an invalid checksum.
 822  **/
 823 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
 824                                       u16 words, u16 *data)
 825 {
 826         struct e1000_nvm_info *nvm = &hw->nvm;
 827         u32 i, eewr = 0;
 828         s32 ret_val = 0;
 829
 830         /* A check for invalid values:  offset too large, too many words,
 831          * and not enough words.
 832          */
 833         if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
 834             (words == 0)) {
 835                 e_dbg("nvm parameter(s) out of bounds\n");
 836                 return -E1000_ERR_NVM;
 837         }
 838
 839         for (i = 0; i < words; i++) {
 840                 eewr = ((data[i] << E1000_NVM_RW_REG_DATA) |
 841                         ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) |
 842                         E1000_NVM_RW_REG_START);
 843
 844                 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
 845                 if (ret_val)
 846                         break;
 847
 848                 ew32(EEWR, eewr);
 849
 850                 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
 851                 if (ret_val)
 852                         break;
 853         }
 854
 855         return ret_val;
 856 }
 857
 858 /**
 859  *  e1000_get_cfg_done_82571 - Poll for configuration done
 860  *  @hw: pointer to the HW structure
 861  *
 862  *  Reads the management control register for the config done bit to be set.
 863  **/
 864 static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
 865 {
 866         s32 timeout = PHY_CFG_TIMEOUT;
 867
 868         while (timeout) {
 869                 if (er32(EEMNGCTL) & E1000_NVM_CFG_DONE_PORT_0)
 870                         break;
 871                 usleep_range(1000, 2000);
 872                 timeout--;
 873         }
 874         if (!timeout) {
 875                 e_dbg("MNG configuration cycle has not completed.\n");
 876                 return -E1000_ERR_RESET;
 877         }
 878
 879         return 0;
 880 }
 881
 882 /**
 883  *  e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
 884  *  @hw: pointer to the HW structure
 885  *  @active: true to enable LPLU, false to disable
 886  *
 887  *  Sets the LPLU D0 state according to the active flag.  When activating LPLU
 888  *  this function also disables smart speed and vice versa.  LPLU will not be
 889  *  activated unless the device autonegotiation advertisement meets standards
 890  *  of either 10 or 10/100 or 10/100/1000 at all duplexes.  This is a function
 891  *  pointer entry point only called by PHY setup routines.
 892  **/
 893 static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
 894 {
 895         struct e1000_phy_info *phy = &hw->phy;
 896         s32 ret_val;
 897         u16 data;
 898
 899         ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
 900         if (ret_val)
 901                 return ret_val;
 902
 903         if (active) {
 904                 data |= IGP02E1000_PM_D0_LPLU;
 905                 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
 906                 if (ret_val)
 907                         return ret_val;
 908
 909                 /* When LPLU is enabled, we should disable SmartSpeed */
 910                 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
 911                 if (ret_val)
 912                         return ret_val;
 913                 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
 914                 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
 915                 if (ret_val)
 916                         return ret_val;
 917         } else {
 918                 data &= ~IGP02E1000_PM_D0_LPLU;
 919                 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
 920                 /* LPLU and SmartSpeed are mutually exclusive.  LPLU is used
 921                  * during Dx states where the power conservation is most
 922                  * important.  During driver activity we should enable
 923                  * SmartSpeed, so performance is maintained.
 924                  */
 925                 if (phy->smart_speed == e1000_smart_speed_on) {
 926                         ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 927                                            &data);
 928                         if (ret_val)
 929                                 return ret_val;
 930
 931                         data |= IGP01E1000_PSCFR_SMART_SPEED;
 932                         ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 933                                            data);
 934                         if (ret_val)
 935                                 return ret_val;
 936                 } else if (phy->smart_speed == e1000_smart_speed_off) {
 937                         ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 938                                            &data);
 939                         if (ret_val)
 940                                 return ret_val;
 941
 942                         data &= ~IGP01E1000_PSCFR_SMART_SPEED;
 943                         ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
 944                                            data);
 945                         if (ret_val)
 946                                 return ret_val;
 947                 }
 948         }
 949
 950         return 0;
 951 }
 952
 953 /**
 954  *  e1000_reset_hw_82571 - Reset hardware
 955  *  @hw: pointer to the HW structure
 956  *
 957  *  This resets the hardware into a known state.
 958  **/
 959 static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 960 {
 961         u32 ctrl, ctrl_ext, eecd, tctl;
 962         s32 ret_val;
 963
 964         /* Prevent the PCI-E bus from sticking if there is no TLP connection
 965          * on the last TLP read/write transaction when MAC is reset.
 966          */
 967         ret_val = e1000e_disable_pcie_master(hw);
 968         if (ret_val)
 969                 e_dbg("PCI-E Master disable polling has failed.\n");
 970
 971         e_dbg("Masking off all interrupts\n");
 972         ew32(IMC, 0xffffffff);
 973
 974         ew32(RCTL, 0);
 975         tctl = er32(TCTL);
 976         tctl &= ~E1000_TCTL_EN;
 977         ew32(TCTL, tctl);
 978         e1e_flush();
 979
 980         usleep_range(10000, 20000);
 981
 982         /* Must acquire the MDIO ownership before MAC reset.
 983          * Ownership defaults to firmware after a reset.
 984          */
 985         switch (hw->mac.type) {
 986         case e1000_82573:
 987                 ret_val = e1000_get_hw_semaphore_82573(hw);
 988                 break;
 989         case e1000_82574:
 990         case e1000_82583:
 991                 ret_val = e1000_get_hw_semaphore_82574(hw);
 992                 break;
 993         default:
 994                 break;
 995         }
 996
 997         ctrl = er32(CTRL);
 998
 999         e_dbg("Issuing a global reset to MAC\n");
1000         ew32(CTRL, ctrl | E1000_CTRL_RST);
1001
1002         /* Must release MDIO ownership and mutex after MAC reset. */
1003         switch (hw->mac.type) {
1004         case e1000_82573:
1005                 /* Release mutex only if the hw semaphore is acquired */
1006                 if (!ret_val)
1007                         e1000_put_hw_semaphore_82573(hw);
1008                 break;
1009         case e1000_82574:
1010         case e1000_82583:
1011                 /* Release mutex only if the hw semaphore is acquired */
1012                 if (!ret_val)
1013                         e1000_put_hw_semaphore_82574(hw);
1014                 break;
1015         default:
1016                 break;
1017         }
1018
1019         if (hw->nvm.type == e1000_nvm_flash_hw) {
1020                 usleep_range(10, 20);
1021                 ctrl_ext = er32(CTRL_EXT);
1022                 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
1023                 ew32(CTRL_EXT, ctrl_ext);
1024                 e1e_flush();
1025         }
1026
1027         ret_val = e1000e_get_auto_rd_done(hw);
1028         if (ret_val)
1029                 /* We don't want to continue accessing MAC registers. */
1030                 return ret_val;
1031
1032         /* Phy configuration from NVM just starts after EECD_AUTO_RD is set.
1033          * Need to wait for Phy configuration completion before accessing
1034          * NVM and Phy.
1035          */
1036
1037         switch (hw->mac.type) {
1038         case e1000_82571:
1039         case e1000_82572:
1040                 /* REQ and GNT bits need to be cleared when using AUTO_RD
1041                  * to access the EEPROM.
1042                  */
1043                 eecd = er32(EECD);
1044                 eecd &= ~(E1000_EECD_REQ | E1000_EECD_GNT);
1045                 ew32(EECD, eecd);
1046                 break;
1047         case e1000_82573:
1048         case e1000_82574:
1049         case e1000_82583:
1050                 msleep(25);
1051                 break;
1052         default:
1053                 break;
1054         }
1055
1056         /* Clear any pending interrupt events. */
1057         ew32(IMC, 0xffffffff);
1058         er32(ICR);
1059
1060         if (hw->mac.type == e1000_82571) {
1061                 /* Install any alternate MAC address into RAR0 */
1062                 ret_val = e1000_check_alt_mac_addr_generic(hw);
1063                 if (ret_val)
1064                         return ret_val;
1065
1066                 e1000e_set_laa_state_82571(hw, true);
1067         }
1068
1069         /* Reinitialize the 82571 serdes link state machine */
1070         if (hw->phy.media_type == e1000_media_type_internal_serdes)
1071                 hw->mac.serdes_link_state = e1000_serdes_link_down;
1072
1073         return 0;
1074 }
1075
1076 /**
1077  *  e1000_init_hw_82571 - Initialize hardware
1078  *  @hw: pointer to the HW structure
1079  *
1080  *  This inits the hardware readying it for operation.
1081  **/
1082 static s32 e1000_init_hw_82571(struct e1000_hw *hw)
1083 {
1084         struct e1000_mac_info *mac = &hw->mac;
1085         u32 reg_data;
1086         s32 ret_val;
1087         u16 i, rar_count = mac->rar_entry_count;
1088
1089         e1000_initialize_hw_bits_82571(hw);
1090
1091         /* Initialize identification LED */
1092         ret_val = mac->ops.id_led_init(hw);
1093         /* An error is not fatal and we should not stop init due to this */
1094         if (ret_val)
1095                 e_dbg("Error initializing identification LED\n");
1096
1097         /* Disabling VLAN filtering */
1098         e_dbg("Initializing the IEEE VLAN\n");
1099         mac->ops.clear_vfta(hw);
1100
1101         /* Setup the receive address.
1102          * If, however, a locally administered address was assigned to the
1103          * 82571, we must reserve a RAR for it to work around an issue where
1104          * resetting one port will reload the MAC on the other port.
1105          */
1106         if (e1000e_get_laa_state_82571(hw))
1107                 rar_count--;
1108         e1000e_init_rx_addrs(hw, rar_count);
1109
1110         /* Zero out the Multicast HASH table */
1111         e_dbg("Zeroing the MTA\n");
1112         for (i = 0; i < mac->mta_reg_count; i++)
1113                 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
1114
1115         /* Setup link and flow control */
1116         ret_val = mac->ops.setup_link(hw);
1117
1118         /* Set the transmit descriptor write-back policy */
1119         reg_data = er32(TXDCTL(0));
1120         reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
1121                     E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
1122         ew32(TXDCTL(0), reg_data);
1123
1124         /* ...for both queues. */
1125         switch (mac->type) {
1126         case e1000_82573:
1127                 e1000e_enable_tx_pkt_filtering(hw);
1128                 /* fall through */
1129         case e1000_82574:
1130         case e1000_82583:
1131                 reg_data = er32(GCR);
1132                 reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
1133                 ew32(GCR, reg_data);
1134                 break;
1135         default:
1136                 reg_data = er32(TXDCTL(1));
1137                 reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
1138                             E1000_TXDCTL_FULL_TX_DESC_WB |
1139                             E1000_TXDCTL_COUNT_DESC);
1140                 ew32(TXDCTL(1), reg_data);
1141                 break;
1142         }
1143
1144         /* Clear all of the statistics registers (clear on read).  It is
1145          * important that we do this after we have tried to establish link
1146          * because the symbol error count will increment wildly if there
1147          * is no link.
1148          */
1149         e1000_clear_hw_cntrs_82571(hw);
1150
1151         return ret_val;
1152 }
1153
1154 /**
1155  *  e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits
1156  *  @hw: pointer to the HW structure
1157  *
1158  *  Initializes required hardware-dependent bits needed for normal operation.
1159  **/
1160 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
1161 {
1162         u32 reg;
1163
1164         /* Transmit Descriptor Control 0 */
1165         reg = er32(TXDCTL(0));
1166         reg |= BIT(22);
1167         ew32(TXDCTL(0), reg);
1168
1169         /* Transmit Descriptor Control 1 */
1170         reg = er32(TXDCTL(1));
1171         reg |= BIT(22);
1172         ew32(TXDCTL(1), reg);
1173
1174         /* Transmit Arbitration Control 0 */
1175         reg = er32(TARC(0));
1176         reg &= ~(0xF << 27);    /* 30:27 */
1177         switch (hw->mac.type) {
1178         case e1000_82571:
1179         case e1000_82572:
1180                 reg |= BIT(23) | BIT(24) | BIT(25) | BIT(26);
1181                 break;
1182         case e1000_82574:
1183         case e1000_82583:
1184                 reg |= BIT(26);
1185                 break;
1186         default:
1187                 break;
1188         }
1189         ew32(TARC(0), reg);
1190
1191         /* Transmit Arbitration Control 1 */
1192         reg = er32(TARC(1));
1193         switch (hw->mac.type) {
1194         case e1000_82571:
1195         case e1000_82572:
1196                 reg &= ~(BIT(29) | BIT(30));
1197                 reg |= BIT(22) | BIT(24) | BIT(25) | BIT(26);
1198                 if (er32(TCTL) & E1000_TCTL_MULR)
1199                         reg &= ~BIT(28);
1200                 else
1201                         reg |= BIT(28);
1202                 ew32(TARC(1), reg);
1203                 break;
1204         default:
1205                 break;
1206         }
1207
1208         /* Device Control */
1209         switch (hw->mac.type) {
1210         case e1000_82573:
1211         case e1000_82574:
1212         case e1000_82583:
1213                 reg = er32(CTRL);
1214                 reg &= ~BIT(29);
1215                 ew32(CTRL, reg);
1216                 break;
1217         default:
1218                 break;
1219         }
1220
1221         /* Extended Device Control */
1222         switch (hw->mac.type) {
1223         case e1000_82573:
1224         case e1000_82574:
1225         case e1000_82583:
1226                 reg = er32(CTRL_EXT);
1227                 reg &= ~BIT(23);
1228                 reg |= BIT(22);
1229                 ew32(CTRL_EXT, reg);
1230                 break;
1231         default:
1232                 break;
1233         }
1234
1235         if (hw->mac.type == e1000_82571) {
1236                 reg = er32(PBA_ECC);
1237                 reg |= E1000_PBA_ECC_CORR_EN;
1238                 ew32(PBA_ECC, reg);
1239         }
1240
1241         /* Workaround for hardware errata.
1242          * Ensure that DMA Dynamic Clock gating is disabled on 82571 and 82572
1243          */
1244         if ((hw->mac.type == e1000_82571) || (hw->mac.type == e1000_82572)) {
1245                 reg = er32(CTRL_EXT);
1246                 reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN;
1247                 ew32(CTRL_EXT, reg);
1248         }
1249
1250         /* Disable IPv6 extension header parsing because some malformed
1251          * IPv6 headers can hang the Rx.
1252          */
1253         if (hw->mac.type <= e1000_82573) {
1254                 reg = er32(RFCTL);
1255                 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
1256                 ew32(RFCTL, reg);
1257         }
1258
1259         /* PCI-Ex Control Registers */
1260         switch (hw->mac.type) {
1261         case e1000_82574:
1262         case e1000_82583:
1263                 reg = er32(GCR);
1264                 reg |= BIT(22);
1265                 ew32(GCR, reg);
1266
1267                 /* Workaround for hardware errata.
1268                  * apply workaround for hardware errata documented in errata
1269                  * docs Fixes issue where some error prone or unreliable PCIe
1270                  * completions are occurring, particularly with ASPM enabled.
1271                  * Without fix, issue can cause Tx timeouts.
1272                  */
1273                 reg = er32(GCR2);
1274                 reg |= 1;
1275                 ew32(GCR2, reg);
1276                 break;
1277         default:
1278                 break;
1279         }
1280 }
1281
1282 /**
1283  *  e1000_clear_vfta_82571 - Clear VLAN filter table
1284  *  @hw: pointer to the HW structure
1285  *
1286  *  Clears the register array which contains the VLAN filter table by
1287  *  setting all the values to 0.
1288  **/
1289 static void e1000_clear_vfta_82571(struct e1000_hw *hw)
1290 {
1291         u32 offset;
1292         u32 vfta_value = 0;
1293         u32 vfta_offset = 0;
1294         u32 vfta_bit_in_reg = 0;
1295
1296         switch (hw->mac.type) {
1297         case e1000_82573:
1298         case e1000_82574:
1299         case e1000_82583:
1300                 if (hw->mng_cookie.vlan_id != 0) {
1301                         /* The VFTA is a 4096b bit-field, each identifying
1302                          * a single VLAN ID.  The following operations
1303                          * determine which 32b entry (i.e. offset) into the
1304                          * array we want to set the VLAN ID (i.e. bit) of
1305                          * the manageability unit.
1306                          */
1307                         vfta_offset = (hw->mng_cookie.vlan_id >>
1308                                        E1000_VFTA_ENTRY_SHIFT) &
1309                             E1000_VFTA_ENTRY_MASK;
1310                         vfta_bit_in_reg =
1311                             BIT(hw->mng_cookie.vlan_id &
1312                                 E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
1313                 }
1314                 break;
1315         default:
1316                 break;
1317         }
1318         for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
1319                 /* If the offset we want to clear is the same offset of the
1320                  * manageability VLAN ID, then clear all bits except that of
1321                  * the manageability unit.
1322                  */
1323                 vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
1324                 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value);
1325                 e1e_flush();
1326         }
1327 }
1328
1329 /**
1330  *  e1000_check_mng_mode_82574 - Check manageability is enabled
1331  *  @hw: pointer to the HW structure
1332  *
1333  *  Reads the NVM Initialization Control Word 2 and returns true
1334  *  (>0) if any manageability is enabled, else false (0).
1335  **/
1336 static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
1337 {
1338         u16 data;
1339
1340         e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
1341         return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
1342 }
1343
1344 /**
1345  *  e1000_led_on_82574 - Turn LED on
1346  *  @hw: pointer to the HW structure
1347  *
1348  *  Turn LED on.
1349  **/
1350 static s32 e1000_led_on_82574(struct e1000_hw *hw)
1351 {
1352         u32 ctrl;
1353         u32 i;
1354
1355         ctrl = hw->mac.ledctl_mode2;
1356         if (!(E1000_STATUS_LU & er32(STATUS))) {
1357                 /* If no link, then turn LED on by setting the invert bit
1358                  * for each LED that's "on" (0x0E) in ledctl_mode2.
1359                  */
1360                 for (i = 0; i < 4; i++)
1361                         if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
1362                             E1000_LEDCTL_MODE_LED_ON)
1363                                 ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
1364         }
1365         ew32(LEDCTL, ctrl);
1366
1367         return 0;
1368 }
1369
1370 /**
1371  *  e1000_check_phy_82574 - check 82574 phy hung state
1372  *  @hw: pointer to the HW structure
1373  *
1374  *  Returns whether phy is hung or not
1375  **/
1376 bool e1000_check_phy_82574(struct e1000_hw *hw)
1377 {
1378         u16 status_1kbt = 0;
1379         u16 receive_errors = 0;
1380         s32 ret_val;
1381
1382         /* Read PHY Receive Error counter first, if its is max - all F's then
1383          * read the Base1000T status register If both are max then PHY is hung.
1384          */
1385         ret_val = e1e_rphy(hw, E1000_RECEIVE_ERROR_COUNTER, &receive_errors);
1386         if (ret_val)
1387                 return false;
1388         if (receive_errors == E1000_RECEIVE_ERROR_MAX) {
1389                 ret_val = e1e_rphy(hw, E1000_BASE1000T_STATUS, &status_1kbt);
1390                 if (ret_val)
1391                         return false;
1392                 if ((status_1kbt & E1000_IDLE_ERROR_COUNT_MASK) ==
1393                     E1000_IDLE_ERROR_COUNT_MASK)
1394                         return true;
1395         }
1396
1397         return false;
1398 }
1399
1400 /**
1401  *  e1000_setup_link_82571 - Setup flow control and link settings
1402  *  @hw: pointer to the HW structure
1403  *
1404  *  Determines which flow control settings to use, then configures flow
1405  *  control.  Calls the appropriate media-specific link configuration
1406  *  function.  Assuming the adapter has a valid link partner, a valid link
1407  *  should be established.  Assumes the hardware has previously been reset
1408  *  and the transmitter and receiver are not enabled.
1409  **/
1410 static s32 e1000_setup_link_82571(struct e1000_hw *hw)
1411 {
1412         /* 82573 does not have a word in the NVM to determine
1413          * the default flow control setting, so we explicitly
1414          * set it to full.
1415          */
1416         switch (hw->mac.type) {
1417         case e1000_82573:
1418         case e1000_82574:
1419         case e1000_82583:
1420                 if (hw->fc.requested_mode == e1000_fc_default)
1421                         hw->fc.requested_mode = e1000_fc_full;
1422                 break;
1423         default:
1424                 break;
1425         }
1426
1427         return e1000e_setup_link_generic(hw);
1428 }
1429
1430 /**
1431  *  e1000_setup_copper_link_82571 - Configure copper link settings
1432  *  @hw: pointer to the HW structure
1433  *
1434  *  Configures the link for auto-neg or forced speed and duplex.  Then we check
1435  *  for link, once link is established calls to configure collision distance
1436  *  and flow control are called.
1437  **/
1438 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
1439 {
1440         u32 ctrl;
1441         s32 ret_val;
1442
1443         ctrl = er32(CTRL);
1444         ctrl |= E1000_CTRL_SLU;
1445         ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1446         ew32(CTRL, ctrl);
1447
1448         switch (hw->phy.type) {
1449         case e1000_phy_m88:
1450         case e1000_phy_bm:
1451                 ret_val = e1000e_copper_link_setup_m88(hw);
1452                 break;
1453         case e1000_phy_igp_2:
1454                 ret_val = e1000e_copper_link_setup_igp(hw);
1455                 break;
1456         default:
1457                 return -E1000_ERR_PHY;
1458         }
1459
1460         if (ret_val)
1461                 return ret_val;
1462
1463         return e1000e_setup_copper_link(hw);
1464 }
1465
1466 /**
1467  *  e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes
1468  *  @hw: pointer to the HW structure
1469  *
1470  *  Configures collision distance and flow control for fiber and serdes links.
1471  *  Upon successful setup, poll for link.
1472  **/
1473 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
1474 {
1475         switch (hw->mac.type) {
1476         case e1000_82571:
1477         case e1000_82572:
1478                 /* If SerDes loopback mode is entered, there is no form
1479                  * of reset to take the adapter out of that mode.  So we
1480                  * have to explicitly take the adapter out of loopback
1481                  * mode.  This prevents drivers from twiddling their thumbs
1482                  * if another tool failed to take it out of loopback mode.
1483                  */
1484                 ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1485                 break;
1486         default:
1487                 break;
1488         }
1489
1490         return e1000e_setup_fiber_serdes_link(hw);
1491 }
1492
1493 /**
1494  *  e1000_check_for_serdes_link_82571 - Check for link (Serdes)
1495  *  @hw: pointer to the HW structure
1496  *
1497  *  Reports the link state as up or down.
1498  *
1499  *  If autonegotiation is supported by the link partner, the link state is
1500  *  determined by the result of autonegotiation. This is the most likely case.
1501  *  If autonegotiation is not supported by the link partner, and the link
1502  *  has a valid signal, force the link up.
1503  *
1504  *  The link state is represented internally here by 4 states:
1505  *
1506  *  1) down
1507  *  2) autoneg_progress
1508  *  3) autoneg_complete (the link successfully autonegotiated)
1509  *  4) forced_up (the link has been forced up, it did not autonegotiate)
1510  *
1511  **/
1512 static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
1513 {
1514         struct e1000_mac_info *mac = &hw->mac;
1515         u32 rxcw;
1516         u32 ctrl;
1517         u32 status;
1518         u32 txcw;
1519         u32 i;
1520         s32 ret_val = 0;
1521
1522         ctrl = er32(CTRL);
1523         status = er32(STATUS);
1524         er32(RXCW);
1525         /* SYNCH bit and IV bit are sticky */
1526         usleep_range(10, 20);
1527         rxcw = er32(RXCW);
1528
1529         if ((rxcw & E1000_RXCW_SYNCH) && !(rxcw & E1000_RXCW_IV)) {
1530                 /* Receiver is synchronized with no invalid bits.  */
1531                 switch (mac->serdes_link_state) {
1532                 case e1000_serdes_link_autoneg_complete:
1533                         if (!(status & E1000_STATUS_LU)) {
1534                                 /* We have lost link, retry autoneg before
1535                                  * reporting link failure
1536                                  */
1537                                 mac->serdes_link_state =
1538                                     e1000_serdes_link_autoneg_progress;
1539                                 mac->serdes_has_link = false;
1540                                 e_dbg("AN_UP     -> AN_PROG\n");
1541                         } else {
1542                                 mac->serdes_has_link = true;
1543                         }
1544                         break;
1545
1546                 case e1000_serdes_link_forced_up:
1547                         /* If we are receiving /C/ ordered sets, re-enable
1548                          * auto-negotiation in the TXCW register and disable
1549                          * forced link in the Device Control register in an
1550                          * attempt to auto-negotiate with our link partner.
1551                          */
1552                         if (rxcw & E1000_RXCW_C) {
1553                                 /* Enable autoneg, and unforce link up */
1554                                 ew32(TXCW, mac->txcw);
1555                                 ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
1556                                 mac->serdes_link_state =
1557                                     e1000_serdes_link_autoneg_progress;
1558                                 mac->serdes_has_link = false;
1559                                 e_dbg("FORCED_UP -> AN_PROG\n");
1560                         } else {
1561                                 mac->serdes_has_link = true;
1562                         }
1563                         break;
1564
1565                 case e1000_serdes_link_autoneg_progress:
1566                         if (rxcw & E1000_RXCW_C) {
1567                                 /* We received /C/ ordered sets, meaning the
1568                                  * link partner has autonegotiated, and we can
1569                                  * trust the Link Up (LU) status bit.
1570                                  */
1571                                 if (status & E1000_STATUS_LU) {
1572                                         mac->serdes_link_state =
1573                                             e1000_serdes_link_autoneg_complete;
1574                                         e_dbg("AN_PROG   -> AN_UP\n");
1575                                         mac->serdes_has_link = true;
1576                                 } else {
1577                                         /* Autoneg completed, but failed. */
1578                                         mac->serdes_link_state =
1579                                             e1000_serdes_link_down;
1580                                         e_dbg("AN_PROG   -> DOWN\n");
1581                                 }
1582                         } else {
1583                                 /* The link partner did not autoneg.
1584                                  * Force link up and full duplex, and change
1585                                  * state to forced.
1586                                  */
1587                                 ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
1588                                 ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
1589                                 ew32(CTRL, ctrl);
1590
1591                                 /* Configure Flow Control after link up. */
1592                                 ret_val = e1000e_config_fc_after_link_up(hw);
1593                                 if (ret_val) {
1594                                         e_dbg("Error config flow control\n");
1595                                         break;
1596                                 }
1597                                 mac->serdes_link_state =
1598                                     e1000_serdes_link_forced_up;
1599                                 mac->serdes_has_link = true;
1600                                 e_dbg("AN_PROG   -> FORCED_UP\n");
1601                         }
1602                         break;
1603
1604                 case e1000_serdes_link_down:
1605                 default:
1606                         /* The link was down but the receiver has now gained
1607                          * valid sync, so lets see if we can bring the link
1608                          * up.
1609                          */
1610                         ew32(TXCW, mac->txcw);
1611                         ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
1612                         mac->serdes_link_state =
1613                             e1000_serdes_link_autoneg_progress;
1614                         mac->serdes_has_link = false;
1615                         e_dbg("DOWN      -> AN_PROG\n");
1616                         break;
1617                 }
1618         } else {
1619                 if (!(rxcw & E1000_RXCW_SYNCH)) {
1620                         mac->serdes_has_link = false;
1621                         mac->serdes_link_state = e1000_serdes_link_down;
1622                         e_dbg("ANYSTATE  -> DOWN\n");
1623                 } else {
1624                         /* Check several times, if SYNCH bit and CONFIG
1625                          * bit both are consistently 1 then simply ignore
1626                          * the IV bit and restart Autoneg
1627                          */
1628                         for (i = 0; i < AN_RETRY_COUNT; i++) {
1629                                 usleep_range(10, 20);
1630                                 rxcw = er32(RXCW);
1631                                 if ((rxcw & E1000_RXCW_SYNCH) &&
1632                                     (rxcw & E1000_RXCW_C))
1633                                         continue;
1634
1635                                 if (rxcw & E1000_RXCW_IV) {
1636                                         mac->serdes_has_link = false;
1637                                         mac->serdes_link_state =
1638                                             e1000_serdes_link_down;
1639                                         e_dbg("ANYSTATE  -> DOWN\n");
1640                                         break;
1641                                 }
1642                         }
1643
1644                         if (i == AN_RETRY_COUNT) {
1645                                 txcw = er32(TXCW);
1646                                 txcw |= E1000_TXCW_ANE;
1647                                 ew32(TXCW, txcw);
1648                                 mac->serdes_link_state =
1649                                     e1000_serdes_link_autoneg_progress;
1650                                 mac->serdes_has_link = false;
1651                                 e_dbg("ANYSTATE  -> AN_PROG\n");
1652                         }
1653                 }
1654         }
1655
1656         return ret_val;
1657 }
1658
1659 /**
1660  *  e1000_valid_led_default_82571 - Verify a valid default LED config
1661  *  @hw: pointer to the HW structure
1662  *  @data: pointer to the NVM (EEPROM)
1663  *
1664  *  Read the EEPROM for the current default LED configuration.  If the
1665  *  LED configuration is not valid, set to a valid LED configuration.
1666  **/
1667 static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
1668 {
1669         s32 ret_val;
1670
1671         ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
1672         if (ret_val) {
1673                 e_dbg("NVM Read Error\n");
1674                 return ret_val;
1675         }
1676
1677         switch (hw->mac.type) {
1678         case e1000_82573:
1679         case e1000_82574:
1680         case e1000_82583:
1681                 if (*data == ID_LED_RESERVED_F746)
1682                         *data = ID_LED_DEFAULT_82573;
1683                 break;
1684         default:
1685                 if (*data == ID_LED_RESERVED_0000 ||
1686                     *data == ID_LED_RESERVED_FFFF)
1687                         *data = ID_LED_DEFAULT;
1688                 break;
1689         }
1690
1691         return 0;
1692 }
1693
1694 /**
1695  *  e1000e_get_laa_state_82571 - Get locally administered address state
1696  *  @hw: pointer to the HW structure
1697  *
1698  *  Retrieve and return the current locally administered address state.
1699  **/
1700 bool e1000e_get_laa_state_82571(struct e1000_hw *hw)
1701 {
1702         if (hw->mac.type != e1000_82571)
1703                 return false;
1704
1705         return hw->dev_spec.e82571.laa_is_present;
1706 }
1707
1708 /**
1709  *  e1000e_set_laa_state_82571 - Set locally administered address state
1710  *  @hw: pointer to the HW structure
1711  *  @state: enable/disable locally administered address
1712  *
1713  *  Enable/Disable the current locally administered address state.
1714  **/
1715 void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state)
1716 {
1717         if (hw->mac.type != e1000_82571)
1718                 return;
1719
1720         hw->dev_spec.e82571.laa_is_present = state;
1721
1722         /* If workaround is activated... */
1723         if (state)
1724                 /* Hold a copy of the LAA in RAR[14] This is done so that
1725                  * between the time RAR[0] gets clobbered and the time it
1726                  * gets fixed, the actual LAA is in one of the RARs and no
1727                  * incoming packets directed to this port are dropped.
1728                  * Eventually the LAA will be in RAR[0] and RAR[14].
1729                  */
1730                 hw->mac.ops.rar_set(hw, hw->mac.addr,
1731                                     hw->mac.rar_entry_count - 1);
1732 }
1733
1734 /**
1735  *  e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum
1736  *  @hw: pointer to the HW structure
1737  *
1738  *  Verifies that the EEPROM has completed the update.  After updating the
1739  *  EEPROM, we need to check bit 15 in work 0x23 for the checksum fix.  If
1740  *  the checksum fix is not implemented, we need to set the bit and update
1741  *  the checksum.  Otherwise, if bit 15 is set and the checksum is incorrect,
1742  *  we need to return bad checksum.
1743  **/
1744 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
1745 {
1746         struct e1000_nvm_info *nvm = &hw->nvm;
1747         s32 ret_val;
1748         u16 data;
1749
1750         if (nvm->type != e1000_nvm_flash_hw)
1751                 return 0;
1752
1753         /* Check bit 4 of word 10h.  If it is 0, firmware is done updating
1754          * 10h-12h.  Checksum may need to be fixed.
1755          */
1756         ret_val = e1000_read_nvm(hw, 0x10, 1, &data);
1757         if (ret_val)
1758                 return ret_val;
1759
1760         if (!(data & 0x10)) {
1761                 /* Read 0x23 and check bit 15.  This bit is a 1
1762                  * when the checksum has already been fixed.  If
1763                  * the checksum is still wrong and this bit is a
1764                  * 1, we need to return bad checksum.  Otherwise,
1765                  * we need to set this bit to a 1 and update the
1766                  * checksum.
1767                  */
1768                 ret_val = e1000_read_nvm(hw, 0x23, 1, &data);
1769                 if (ret_val)
1770                         return ret_val;
1771
1772                 if (!(data & 0x8000)) {
1773                         data |= 0x8000;
1774                         ret_val = e1000_write_nvm(hw, 0x23, 1, &data);
1775                         if (ret_val)
1776                                 return ret_val;
1777                         ret_val = e1000e_update_nvm_checksum(hw);
1778                         if (ret_val)
1779                                 return ret_val;
1780                 }
1781         }
1782
1783         return 0;
1784 }
1785
1786 /**
1787  *  e1000_read_mac_addr_82571 - Read device MAC address
1788  *  @hw: pointer to the HW structure
1789  **/
1790 static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw)
1791 {
1792         if (hw->mac.type == e1000_82571) {
1793                 s32 ret_val;
1794
1795                 /* If there's an alternate MAC address place it in RAR0
1796                  * so that it will override the Si installed default perm
1797                  * address.
1798                  */
1799                 ret_val = e1000_check_alt_mac_addr_generic(hw);
1800                 if (ret_val)
1801                         return ret_val;
1802         }
1803
1804         return e1000_read_mac_addr_generic(hw);
1805 }
1806
1807 /**
1808  * e1000_power_down_phy_copper_82571 - Remove link during PHY power down
1809  * @hw: pointer to the HW structure
1810  *
1811  * In the case of a PHY power down to save power, or to turn off link during a
1812  * driver unload, or wake on lan is not enabled, remove the link.
1813  **/
1814 static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw)
1815 {
1816         struct e1000_phy_info *phy = &hw->phy;
1817         struct e1000_mac_info *mac = &hw->mac;
1818
1819         if (!phy->ops.check_reset_block)
1820                 return;
1821
1822         /* If the management interface is not enabled, then power down */
1823         if (!(mac->ops.check_mng_mode(hw) || phy->ops.check_reset_block(hw)))
1824                 e1000_power_down_phy_copper(hw);
1825 }
1826
1827 /**
1828  *  e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters
1829  *  @hw: pointer to the HW structure
1830  *
1831  *  Clears the hardware counters by reading the counter registers.
1832  **/
1833 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
1834 {
1835         e1000e_clear_hw_cntrs_base(hw);
1836
1837         er32(PRC64);
1838         er32(PRC127);
1839         er32(PRC255);
1840         er32(PRC511);
1841         er32(PRC1023);
1842         er32(PRC1522);
1843         er32(PTC64);
1844         er32(PTC127);
1845         er32(PTC255);
1846         er32(PTC511);
1847         er32(PTC1023);
1848         er32(PTC1522);
1849
1850         er32(ALGNERRC);
1851         er32(RXERRC);
1852         er32(TNCRS);
1853         er32(CEXTERR);
1854         er32(TSCTC);
1855         er32(TSCTFC);
1856
1857         er32(MGTPRC);
1858         er32(MGTPDC);
1859         er32(MGTPTC);
1860
1861         er32(IAC);
1862         er32(ICRXOC);
1863
1864         er32(ICRXPTC);
1865         er32(ICRXATC);
1866         er32(ICTXPTC);
1867         er32(ICTXATC);
1868         er32(ICTXQEC);
1869         er32(ICTXQMTC);
1870         er32(ICRXDMTC);
1871 }
1872
1873 static const struct e1000_mac_operations e82571_mac_ops = {
1874         /* .check_mng_mode: mac type dependent */
1875         /* .check_for_link: media type dependent */
1876         .id_led_init            = e1000e_id_led_init_generic,
1877         .cleanup_led            = e1000e_cleanup_led_generic,
1878         .clear_hw_cntrs         = e1000_clear_hw_cntrs_82571,
1879         .get_bus_info           = e1000e_get_bus_info_pcie,
1880         .set_lan_id             = e1000_set_lan_id_multi_port_pcie,
1881         /* .get_link_up_info: media type dependent */
1882         /* .led_on: mac type dependent */
1883         .led_off                = e1000e_led_off_generic,
1884         .update_mc_addr_list    = e1000e_update_mc_addr_list_generic,
1885         .write_vfta             = e1000_write_vfta_generic,
1886         .clear_vfta             = e1000_clear_vfta_82571,
1887         .reset_hw               = e1000_reset_hw_82571,
1888         .init_hw                = e1000_init_hw_82571,
1889         .setup_link             = e1000_setup_link_82571,
1890         /* .setup_physical_interface: media type dependent */
1891         .setup_led              = e1000e_setup_led_generic,
1892         .config_collision_dist  = e1000e_config_collision_dist_generic,
1893         .read_mac_addr          = e1000_read_mac_addr_82571,
1894         .rar_set                = e1000e_rar_set_generic,
1895         .rar_get_count          = e1000e_rar_get_count_generic,
1896 };
1897
1898 static const struct e1000_phy_operations e82_phy_ops_igp = {
1899         .acquire                = e1000_get_hw_semaphore_82571,
1900         .check_polarity         = e1000_check_polarity_igp,
1901         .check_reset_block      = e1000e_check_reset_block_generic,
1902         .commit                 = NULL,
1903         .force_speed_duplex     = e1000e_phy_force_speed_duplex_igp,
1904         .get_cfg_done           = e1000_get_cfg_done_82571,
1905         .get_cable_length       = e1000e_get_cable_length_igp_2,
1906         .get_info               = e1000e_get_phy_info_igp,
1907         .read_reg               = e1000e_read_phy_reg_igp,
1908         .release                = e1000_put_hw_semaphore_82571,
1909         .reset                  = e1000e_phy_hw_reset_generic,
1910         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1911         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1912         .write_reg              = e1000e_write_phy_reg_igp,
1913         .cfg_on_link_up         = NULL,
1914 };
1915
1916 static const struct e1000_phy_operations e82_phy_ops_m88 = {
1917         .acquire                = e1000_get_hw_semaphore_82571,
1918         .check_polarity         = e1000_check_polarity_m88,
1919         .check_reset_block      = e1000e_check_reset_block_generic,
1920         .commit                 = e1000e_phy_sw_reset,
1921         .force_speed_duplex     = e1000e_phy_force_speed_duplex_m88,
1922         .get_cfg_done           = e1000e_get_cfg_done_generic,
1923         .get_cable_length       = e1000e_get_cable_length_m88,
1924         .get_info               = e1000e_get_phy_info_m88,
1925         .read_reg               = e1000e_read_phy_reg_m88,
1926         .release                = e1000_put_hw_semaphore_82571,
1927         .reset                  = e1000e_phy_hw_reset_generic,
1928         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1929         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1930         .write_reg              = e1000e_write_phy_reg_m88,
1931         .cfg_on_link_up         = NULL,
1932 };
1933
1934 static const struct e1000_phy_operations e82_phy_ops_bm = {
1935         .acquire                = e1000_get_hw_semaphore_82571,
1936         .check_polarity         = e1000_check_polarity_m88,
1937         .check_reset_block      = e1000e_check_reset_block_generic,
1938         .commit                 = e1000e_phy_sw_reset,
1939         .force_speed_duplex     = e1000e_phy_force_speed_duplex_m88,
1940         .get_cfg_done           = e1000e_get_cfg_done_generic,
1941         .get_cable_length       = e1000e_get_cable_length_m88,
1942         .get_info               = e1000e_get_phy_info_m88,
1943         .read_reg               = e1000e_read_phy_reg_bm2,
1944         .release                = e1000_put_hw_semaphore_82571,
1945         .reset                  = e1000e_phy_hw_reset_generic,
1946         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
1947         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
1948         .write_reg              = e1000e_write_phy_reg_bm2,
1949         .cfg_on_link_up         = NULL,
1950 };
1951
1952 static const struct e1000_nvm_operations e82571_nvm_ops = {
1953         .acquire                = e1000_acquire_nvm_82571,
1954         .read                   = e1000e_read_nvm_eerd,
1955         .release                = e1000_release_nvm_82571,
1956         .reload                 = e1000e_reload_nvm_generic,
1957         .update                 = e1000_update_nvm_checksum_82571,
1958         .valid_led_default      = e1000_valid_led_default_82571,
1959         .validate               = e1000_validate_nvm_checksum_82571,
1960         .write                  = e1000_write_nvm_82571,
1961 };
1962
1963 const struct e1000_info e1000_82571_info = {
1964         .mac                    = e1000_82571,
1965         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1966                                   | FLAG_HAS_JUMBO_FRAMES
1967                                   | FLAG_HAS_WOL
1968                                   | FLAG_APME_IN_CTRL3
1969                                   | FLAG_HAS_CTRLEXT_ON_LOAD
1970                                   | FLAG_HAS_SMART_POWER_DOWN
1971                                   | FLAG_RESET_OVERWRITES_LAA /* errata */
1972                                   | FLAG_TARC_SPEED_MODE_BIT /* errata */
1973                                   | FLAG_APME_CHECK_PORT_B,
1974         .flags2                 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */
1975                                   | FLAG2_DMA_BURST,
1976         .pba                    = 38,
1977         .max_hw_frame_size      = DEFAULT_JUMBO,
1978         .get_variants           = e1000_get_variants_82571,
1979         .mac_ops                = &e82571_mac_ops,
1980         .phy_ops                = &e82_phy_ops_igp,
1981         .nvm_ops                = &e82571_nvm_ops,
1982 };
1983
1984 const struct e1000_info e1000_82572_info = {
1985         .mac                    = e1000_82572,
1986         .flags                  = FLAG_HAS_HW_VLAN_FILTER
1987                                   | FLAG_HAS_JUMBO_FRAMES
1988                                   | FLAG_HAS_WOL
1989                                   | FLAG_APME_IN_CTRL3
1990                                   | FLAG_HAS_CTRLEXT_ON_LOAD
1991                                   | FLAG_TARC_SPEED_MODE_BIT, /* errata */
1992         .flags2                 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */
1993                                   | FLAG2_DMA_BURST,
1994         .pba                    = 38,
1995         .max_hw_frame_size      = DEFAULT_JUMBO,
1996         .get_variants           = e1000_get_variants_82571,
1997         .mac_ops                = &e82571_mac_ops,
1998         .phy_ops                = &e82_phy_ops_igp,
1999         .nvm_ops                = &e82571_nvm_ops,
2000 };
2001
2002 const struct e1000_info e1000_82573_info = {
2003         .mac                    = e1000_82573,
2004         .flags                  = FLAG_HAS_HW_VLAN_FILTER
2005                                   | FLAG_HAS_WOL
2006                                   | FLAG_APME_IN_CTRL3
2007                                   | FLAG_HAS_SMART_POWER_DOWN
2008                                   | FLAG_HAS_AMT
2009                                   | FLAG_HAS_SWSM_ON_LOAD,
2010         .flags2                 = FLAG2_DISABLE_ASPM_L1
2011                                   | FLAG2_DISABLE_ASPM_L0S,
2012         .pba                    = 20,
2013         .max_hw_frame_size      = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
2014         .get_variants           = e1000_get_variants_82571,
2015         .mac_ops                = &e82571_mac_ops,
2016         .phy_ops                = &e82_phy_ops_m88,
2017         .nvm_ops                = &e82571_nvm_ops,
2018 };
2019
2020 const struct e1000_info e1000_82574_info = {
2021         .mac                    = e1000_82574,
2022         .flags                  = FLAG_HAS_HW_VLAN_FILTER
2023                                   | FLAG_HAS_MSIX
2024                                   | FLAG_HAS_JUMBO_FRAMES
2025                                   | FLAG_HAS_WOL
2026                                   | FLAG_HAS_HW_TIMESTAMP
2027                                   | FLAG_APME_IN_CTRL3
2028                                   | FLAG_HAS_SMART_POWER_DOWN
2029                                   | FLAG_HAS_AMT
2030                                   | FLAG_HAS_CTRLEXT_ON_LOAD,
2031         .flags2                  = FLAG2_CHECK_PHY_HANG
2032                                   | FLAG2_DISABLE_ASPM_L0S
2033                                   | FLAG2_DISABLE_ASPM_L1
2034                                   | FLAG2_NO_DISABLE_RX
2035                                   | FLAG2_DMA_BURST
2036                                   | FLAG2_CHECK_SYSTIM_OVERFLOW,
2037         .pba                    = 32,
2038         .max_hw_frame_size      = DEFAULT_JUMBO,
2039         .get_variants           = e1000_get_variants_82571,
2040         .mac_ops                = &e82571_mac_ops,
2041         .phy_ops                = &e82_phy_ops_bm,
2042         .nvm_ops                = &e82571_nvm_ops,
2043 };
2044
2045 const struct e1000_info e1000_82583_info = {
2046         .mac                    = e1000_82583,
2047         .flags                  = FLAG_HAS_HW_VLAN_FILTER
2048                                   | FLAG_HAS_WOL
2049                                   | FLAG_HAS_HW_TIMESTAMP
2050                                   | FLAG_APME_IN_CTRL3
2051                                   | FLAG_HAS_SMART_POWER_DOWN
2052                                   | FLAG_HAS_AMT
2053                                   | FLAG_HAS_JUMBO_FRAMES
2054                                   | FLAG_HAS_CTRLEXT_ON_LOAD,
2055         .flags2                 = FLAG2_DISABLE_ASPM_L0S
2056                                   | FLAG2_DISABLE_ASPM_L1
2057                                   | FLAG2_NO_DISABLE_RX
2058                                   | FLAG2_CHECK_SYSTIM_OVERFLOW,
2059         .pba                    = 32,
2060         .max_hw_frame_size      = DEFAULT_JUMBO,
2061         .get_variants           = e1000_get_variants_82571,
2062         .mac_ops                = &e82571_mac_ops,
2063         .phy_ops                = &e82_phy_ops_bm,
2064         .nvm_ops                = &e82571_nvm_ops,
2065 };