e1000_82540.c revision 218588
1/****************************************************************************** 2 3 Copyright (c) 2001-2010, Intel Corporation 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 POSSIBILITY OF SUCH DAMAGE. 31 32******************************************************************************/ 33/*$FreeBSD: head/sys/dev/e1000/e1000_82540.c 218588 2011-02-12 00:07:40Z jfv $*/ 34 35/* 36 * 82540EM Gigabit Ethernet Controller 37 * 82540EP Gigabit Ethernet Controller 38 * 82545EM Gigabit Ethernet Controller (Copper) 39 * 82545EM Gigabit Ethernet Controller (Fiber) 40 * 82545GM Gigabit Ethernet Controller 41 * 82546EB Gigabit Ethernet Controller (Copper) 42 * 82546EB Gigabit Ethernet Controller (Fiber) 43 * 82546GB Gigabit Ethernet Controller 44 */ 45 46#include "e1000_api.h" 47 48static s32 e1000_init_phy_params_82540(struct e1000_hw *hw); 49static s32 e1000_init_nvm_params_82540(struct e1000_hw *hw); 50static s32 e1000_init_mac_params_82540(struct e1000_hw *hw); 51static s32 e1000_adjust_serdes_amplitude_82540(struct e1000_hw *hw); 52static void e1000_clear_hw_cntrs_82540(struct e1000_hw *hw); 53static s32 e1000_init_hw_82540(struct e1000_hw *hw); 54static s32 e1000_reset_hw_82540(struct e1000_hw *hw); 55static s32 e1000_set_phy_mode_82540(struct e1000_hw *hw); 56static s32 e1000_set_vco_speed_82540(struct e1000_hw *hw); 57static s32 e1000_setup_copper_link_82540(struct e1000_hw *hw); 58static s32 e1000_setup_fiber_serdes_link_82540(struct e1000_hw *hw); 59static void e1000_power_down_phy_copper_82540(struct e1000_hw *hw); 60static s32 e1000_read_mac_addr_82540(struct e1000_hw *hw); 61 62/** 63 * e1000_init_phy_params_82540 - Init PHY func ptrs. 64 * @hw: pointer to the HW structure 65 **/ 66static s32 e1000_init_phy_params_82540(struct e1000_hw *hw) 67{ 68 struct e1000_phy_info *phy = &hw->phy; 69 s32 ret_val = E1000_SUCCESS; 70 71 phy->addr = 1; 72 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; 73 phy->reset_delay_us = 10000; 74 phy->type = e1000_phy_m88; 75 76 /* Function Pointers */ 77 phy->ops.check_polarity = e1000_check_polarity_m88; 78 phy->ops.commit = e1000_phy_sw_reset_generic; 79 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_m88; 80 phy->ops.get_cable_length = e1000_get_cable_length_m88; 81 phy->ops.get_cfg_done = e1000_get_cfg_done_generic; 82 phy->ops.read_reg = e1000_read_phy_reg_m88; 83 phy->ops.reset = e1000_phy_hw_reset_generic; 84 phy->ops.write_reg = e1000_write_phy_reg_m88; 85 phy->ops.get_info = e1000_get_phy_info_m88; 86 phy->ops.power_up = e1000_power_up_phy_copper; 87 phy->ops.power_down = e1000_power_down_phy_copper_82540; 88 89 ret_val = e1000_get_phy_id(hw); 90 if (ret_val) 91 goto out; 92 93 /* Verify phy id */ 94 switch (hw->mac.type) { 95 case e1000_82540: 96 case e1000_82545: 97 case e1000_82545_rev_3: 98 case e1000_82546: 99 case e1000_82546_rev_3: 100 if (phy->id == M88E1011_I_PHY_ID) 101 break; 102 /* Fall Through */ 103 default: 104 ret_val = -E1000_ERR_PHY; 105 goto out; 106 break; 107 } 108 109out: 110 return ret_val; 111} 112 113/** 114 * e1000_init_nvm_params_82540 - Init NVM func ptrs. 115 * @hw: pointer to the HW structure 116 **/ 117static s32 e1000_init_nvm_params_82540(struct e1000_hw *hw) 118{ 119 struct e1000_nvm_info *nvm = &hw->nvm; 120 u32 eecd = E1000_READ_REG(hw, E1000_EECD); 121 122 DEBUGFUNC("e1000_init_nvm_params_82540"); 123 124 nvm->type = e1000_nvm_eeprom_microwire; 125 nvm->delay_usec = 50; 126 nvm->opcode_bits = 3; 127 switch (nvm->override) { 128 case e1000_nvm_override_microwire_large: 129 nvm->address_bits = 8; 130 nvm->word_size = 256; 131 break; 132 case e1000_nvm_override_microwire_small: 133 nvm->address_bits = 6; 134 nvm->word_size = 64; 135 break; 136 default: 137 nvm->address_bits = eecd & E1000_EECD_SIZE ? 8 : 6; 138 nvm->word_size = eecd & E1000_EECD_SIZE ? 256 : 64; 139 break; 140 } 141 142 /* Function Pointers */ 143 nvm->ops.acquire = e1000_acquire_nvm_generic; 144 nvm->ops.read = e1000_read_nvm_microwire; 145 nvm->ops.release = e1000_release_nvm_generic; 146 nvm->ops.update = e1000_update_nvm_checksum_generic; 147 nvm->ops.valid_led_default = e1000_valid_led_default_generic; 148 nvm->ops.validate = e1000_validate_nvm_checksum_generic; 149 nvm->ops.write = e1000_write_nvm_microwire; 150 151 return E1000_SUCCESS; 152} 153 154/** 155 * e1000_init_mac_params_82540 - Init MAC func ptrs. 156 * @hw: pointer to the HW structure 157 **/ 158static s32 e1000_init_mac_params_82540(struct e1000_hw *hw) 159{ 160 struct e1000_mac_info *mac = &hw->mac; 161 s32 ret_val = E1000_SUCCESS; 162 163 DEBUGFUNC("e1000_init_mac_params_82540"); 164 165 /* Set media type */ 166 switch (hw->device_id) { 167 case E1000_DEV_ID_82545EM_FIBER: 168 case E1000_DEV_ID_82545GM_FIBER: 169 case E1000_DEV_ID_82546EB_FIBER: 170 case E1000_DEV_ID_82546GB_FIBER: 171 hw->phy.media_type = e1000_media_type_fiber; 172 break; 173 case E1000_DEV_ID_82545GM_SERDES: 174 case E1000_DEV_ID_82546GB_SERDES: 175 hw->phy.media_type = e1000_media_type_internal_serdes; 176 break; 177 default: 178 hw->phy.media_type = e1000_media_type_copper; 179 break; 180 } 181 182 /* Set mta register count */ 183 mac->mta_reg_count = 128; 184 /* Set rar entry count */ 185 mac->rar_entry_count = E1000_RAR_ENTRIES; 186 187 /* Function pointers */ 188 189 /* bus type/speed/width */ 190 mac->ops.get_bus_info = e1000_get_bus_info_pci_generic; 191 /* function id */ 192 mac->ops.set_lan_id = e1000_set_lan_id_multi_port_pci; 193 /* reset */ 194 mac->ops.reset_hw = e1000_reset_hw_82540; 195 /* hw initialization */ 196 mac->ops.init_hw = e1000_init_hw_82540; 197 /* link setup */ 198 mac->ops.setup_link = e1000_setup_link_generic; 199 /* physical interface setup */ 200 mac->ops.setup_physical_interface = 201 (hw->phy.media_type == e1000_media_type_copper) 202 ? e1000_setup_copper_link_82540 203 : e1000_setup_fiber_serdes_link_82540; 204 /* check for link */ 205 switch (hw->phy.media_type) { 206 case e1000_media_type_copper: 207 mac->ops.check_for_link = e1000_check_for_copper_link_generic; 208 break; 209 case e1000_media_type_fiber: 210 mac->ops.check_for_link = e1000_check_for_fiber_link_generic; 211 break; 212 case e1000_media_type_internal_serdes: 213 mac->ops.check_for_link = e1000_check_for_serdes_link_generic; 214 break; 215 default: 216 ret_val = -E1000_ERR_CONFIG; 217 goto out; 218 break; 219 } 220 /* link info */ 221 mac->ops.get_link_up_info = 222 (hw->phy.media_type == e1000_media_type_copper) 223 ? e1000_get_speed_and_duplex_copper_generic 224 : e1000_get_speed_and_duplex_fiber_serdes_generic; 225 /* multicast address update */ 226 mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_generic; 227 /* writing VFTA */ 228 mac->ops.write_vfta = e1000_write_vfta_generic; 229 /* clearing VFTA */ 230 mac->ops.clear_vfta = e1000_clear_vfta_generic; 231 /* read mac address */ 232 mac->ops.read_mac_addr = e1000_read_mac_addr_82540; 233 /* ID LED init */ 234 mac->ops.id_led_init = e1000_id_led_init_generic; 235 /* setup LED */ 236 mac->ops.setup_led = e1000_setup_led_generic; 237 /* cleanup LED */ 238 mac->ops.cleanup_led = e1000_cleanup_led_generic; 239 /* turn on/off LED */ 240 mac->ops.led_on = e1000_led_on_generic; 241 mac->ops.led_off = e1000_led_off_generic; 242 /* clear hardware counters */ 243 mac->ops.clear_hw_cntrs = e1000_clear_hw_cntrs_82540; 244 245out: 246 return ret_val; 247} 248 249/** 250 * e1000_init_function_pointers_82540 - Init func ptrs. 251 * @hw: pointer to the HW structure 252 * 253 * Called to initialize all function pointers and parameters. 254 **/ 255void e1000_init_function_pointers_82540(struct e1000_hw *hw) 256{ 257 DEBUGFUNC("e1000_init_function_pointers_82540"); 258 259 hw->mac.ops.init_params = e1000_init_mac_params_82540; 260 hw->nvm.ops.init_params = e1000_init_nvm_params_82540; 261 hw->phy.ops.init_params = e1000_init_phy_params_82540; 262} 263 264/** 265 * e1000_reset_hw_82540 - Reset hardware 266 * @hw: pointer to the HW structure 267 * 268 * This resets the hardware into a known state. 269 **/ 270static s32 e1000_reset_hw_82540(struct e1000_hw *hw) 271{ 272 u32 ctrl, manc; 273 s32 ret_val = E1000_SUCCESS; 274 275 DEBUGFUNC("e1000_reset_hw_82540"); 276 277 DEBUGOUT("Masking off all interrupts\n"); 278 E1000_WRITE_REG(hw, E1000_IMC, 0xFFFFFFFF); 279 280 E1000_WRITE_REG(hw, E1000_RCTL, 0); 281 E1000_WRITE_REG(hw, E1000_TCTL, E1000_TCTL_PSP); 282 E1000_WRITE_FLUSH(hw); 283 284 /* 285 * Delay to allow any outstanding PCI transactions to complete 286 * before resetting the device. 287 */ 288 msec_delay(10); 289 290 ctrl = E1000_READ_REG(hw, E1000_CTRL); 291 292 DEBUGOUT("Issuing a global reset to 82540/82545/82546 MAC\n"); 293 switch (hw->mac.type) { 294 case e1000_82545_rev_3: 295 case e1000_82546_rev_3: 296 E1000_WRITE_REG(hw, E1000_CTRL_DUP, ctrl | E1000_CTRL_RST); 297 break; 298 default: 299 /* 300 * These controllers can't ack the 64-bit write when 301 * issuing the reset, so we use IO-mapping as a 302 * workaround to issue the reset. 303 */ 304 E1000_WRITE_REG_IO(hw, E1000_CTRL, ctrl | E1000_CTRL_RST); 305 break; 306 } 307 308 /* Wait for EEPROM reload */ 309 msec_delay(5); 310 311 /* Disable HW ARPs on ASF enabled adapters */ 312 manc = E1000_READ_REG(hw, E1000_MANC); 313 manc &= ~E1000_MANC_ARP_EN; 314 E1000_WRITE_REG(hw, E1000_MANC, manc); 315 316 E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff); 317 E1000_READ_REG(hw, E1000_ICR); 318 319 return ret_val; 320} 321 322/** 323 * e1000_init_hw_82540 - Initialize hardware 324 * @hw: pointer to the HW structure 325 * 326 * This inits the hardware readying it for operation. 327 **/ 328static s32 e1000_init_hw_82540(struct e1000_hw *hw) 329{ 330 struct e1000_mac_info *mac = &hw->mac; 331 u32 txdctl, ctrl_ext; 332 s32 ret_val = E1000_SUCCESS; 333 u16 i; 334 335 DEBUGFUNC("e1000_init_hw_82540"); 336 337 /* Initialize identification LED */ 338 ret_val = mac->ops.id_led_init(hw); 339 if (ret_val) { 340 DEBUGOUT("Error initializing identification LED\n"); 341 /* This is not fatal and we should not stop init due to this */ 342 } 343 344 /* Disabling VLAN filtering */ 345 DEBUGOUT("Initializing the IEEE VLAN\n"); 346 if (mac->type < e1000_82545_rev_3) 347 E1000_WRITE_REG(hw, E1000_VET, 0); 348 349 mac->ops.clear_vfta(hw); 350 351 /* Setup the receive address. */ 352 e1000_init_rx_addrs_generic(hw, mac->rar_entry_count); 353 354 /* Zero out the Multicast HASH table */ 355 DEBUGOUT("Zeroing the MTA\n"); 356 for (i = 0; i < mac->mta_reg_count; i++) { 357 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0); 358 /* 359 * Avoid back to back register writes by adding the register 360 * read (flush). This is to protect against some strange 361 * bridge configurations that may issue Memory Write Block 362 * (MWB) to our register space. The *_rev_3 hardware at 363 * least doesn't respond correctly to every other dword in an 364 * MWB to our register space. 365 */ 366 E1000_WRITE_FLUSH(hw); 367 } 368 369 if (mac->type < e1000_82545_rev_3) 370 e1000_pcix_mmrbc_workaround_generic(hw); 371 372 /* Setup link and flow control */ 373 ret_val = mac->ops.setup_link(hw); 374 375 txdctl = E1000_READ_REG(hw, E1000_TXDCTL(0)); 376 txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) | 377 E1000_TXDCTL_FULL_TX_DESC_WB; 378 E1000_WRITE_REG(hw, E1000_TXDCTL(0), txdctl); 379 380 /* 381 * Clear all of the statistics registers (clear on read). It is 382 * important that we do this after we have tried to establish link 383 * because the symbol error count will increment wildly if there 384 * is no link. 385 */ 386 e1000_clear_hw_cntrs_82540(hw); 387 388 if ((hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER) || 389 (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3)) { 390 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT); 391 /* 392 * Relaxed ordering must be disabled to avoid a parity 393 * error crash in a PCI slot. 394 */ 395 ctrl_ext |= E1000_CTRL_EXT_RO_DIS; 396 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext); 397 } 398 399 return ret_val; 400} 401 402/** 403 * e1000_setup_copper_link_82540 - Configure copper link settings 404 * @hw: pointer to the HW structure 405 * 406 * Calls the appropriate function to configure the link for auto-neg or forced 407 * speed and duplex. Then we check for link, once link is established calls 408 * to configure collision distance and flow control are called. If link is 409 * not established, we return -E1000_ERR_PHY (-2). 410 **/ 411static s32 e1000_setup_copper_link_82540(struct e1000_hw *hw) 412{ 413 u32 ctrl; 414 s32 ret_val = E1000_SUCCESS; 415 u16 data; 416 417 DEBUGFUNC("e1000_setup_copper_link_82540"); 418 419 ctrl = E1000_READ_REG(hw, E1000_CTRL); 420 ctrl |= E1000_CTRL_SLU; 421 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); 422 E1000_WRITE_REG(hw, E1000_CTRL, ctrl); 423 424 ret_val = e1000_set_phy_mode_82540(hw); 425 if (ret_val) 426 goto out; 427 428 if (hw->mac.type == e1000_82545_rev_3 || 429 hw->mac.type == e1000_82546_rev_3) { 430 ret_val = hw->phy.ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &data); 431 if (ret_val) 432 goto out; 433 data |= 0x00000008; 434 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, data); 435 if (ret_val) 436 goto out; 437 } 438 439 ret_val = e1000_copper_link_setup_m88(hw); 440 if (ret_val) 441 goto out; 442 443 ret_val = e1000_setup_copper_link_generic(hw); 444 445out: 446 return ret_val; 447} 448 449/** 450 * e1000_setup_fiber_serdes_link_82540 - Setup link for fiber/serdes 451 * @hw: pointer to the HW structure 452 * 453 * Set the output amplitude to the value in the EEPROM and adjust the VCO 454 * speed to improve Bit Error Rate (BER) performance. Configures collision 455 * distance and flow control for fiber and serdes links. Upon successful 456 * setup, poll for link. 457 **/ 458static s32 e1000_setup_fiber_serdes_link_82540(struct e1000_hw *hw) 459{ 460 struct e1000_mac_info *mac = &hw->mac; 461 s32 ret_val = E1000_SUCCESS; 462 463 DEBUGFUNC("e1000_setup_fiber_serdes_link_82540"); 464 465 switch (mac->type) { 466 case e1000_82545_rev_3: 467 case e1000_82546_rev_3: 468 if (hw->phy.media_type == e1000_media_type_internal_serdes) { 469 /* 470 * If we're on serdes media, adjust the output 471 * amplitude to value set in the EEPROM. 472 */ 473 ret_val = e1000_adjust_serdes_amplitude_82540(hw); 474 if (ret_val) 475 goto out; 476 } 477 /* Adjust VCO speed to improve BER performance */ 478 ret_val = e1000_set_vco_speed_82540(hw); 479 if (ret_val) 480 goto out; 481 default: 482 break; 483 } 484 485 ret_val = e1000_setup_fiber_serdes_link_generic(hw); 486 487out: 488 return ret_val; 489} 490 491/** 492 * e1000_adjust_serdes_amplitude_82540 - Adjust amplitude based on EEPROM 493 * @hw: pointer to the HW structure 494 * 495 * Adjust the SERDES output amplitude based on the EEPROM settings. 496 **/ 497static s32 e1000_adjust_serdes_amplitude_82540(struct e1000_hw *hw) 498{ 499 s32 ret_val = E1000_SUCCESS; 500 u16 nvm_data; 501 502 DEBUGFUNC("e1000_adjust_serdes_amplitude_82540"); 503 504 ret_val = hw->nvm.ops.read(hw, NVM_SERDES_AMPLITUDE, 1, &nvm_data); 505 if (ret_val) 506 goto out; 507 508 if (nvm_data != NVM_RESERVED_WORD) { 509 /* Adjust serdes output amplitude only. */ 510 nvm_data &= NVM_SERDES_AMPLITUDE_MASK; 511 ret_val = hw->phy.ops.write_reg(hw, 512 M88E1000_PHY_EXT_CTRL, 513 nvm_data); 514 if (ret_val) 515 goto out; 516 } 517 518out: 519 return ret_val; 520} 521 522/** 523 * e1000_set_vco_speed_82540 - Set VCO speed for better performance 524 * @hw: pointer to the HW structure 525 * 526 * Set the VCO speed to improve Bit Error Rate (BER) performance. 527 **/ 528static s32 e1000_set_vco_speed_82540(struct e1000_hw *hw) 529{ 530 s32 ret_val = E1000_SUCCESS; 531 u16 default_page = 0; 532 u16 phy_data; 533 534 DEBUGFUNC("e1000_set_vco_speed_82540"); 535 536 /* Set PHY register 30, page 5, bit 8 to 0 */ 537 538 ret_val = hw->phy.ops.read_reg(hw, 539 M88E1000_PHY_PAGE_SELECT, 540 &default_page); 541 if (ret_val) 542 goto out; 543 544 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); 545 if (ret_val) 546 goto out; 547 548 ret_val = hw->phy.ops.read_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); 549 if (ret_val) 550 goto out; 551 552 phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; 553 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); 554 if (ret_val) 555 goto out; 556 557 /* Set PHY register 30, page 4, bit 11 to 1 */ 558 559 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); 560 if (ret_val) 561 goto out; 562 563 ret_val = hw->phy.ops.read_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); 564 if (ret_val) 565 goto out; 566 567 phy_data |= M88E1000_PHY_VCO_REG_BIT11; 568 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); 569 if (ret_val) 570 goto out; 571 572 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 573 default_page); 574 575out: 576 return ret_val; 577} 578 579/** 580 * e1000_set_phy_mode_82540 - Set PHY to class A mode 581 * @hw: pointer to the HW structure 582 * 583 * Sets the PHY to class A mode and assumes the following operations will 584 * follow to enable the new class mode: 585 * 1. Do a PHY soft reset. 586 * 2. Restart auto-negotiation or force link. 587 **/ 588static s32 e1000_set_phy_mode_82540(struct e1000_hw *hw) 589{ 590 struct e1000_phy_info *phy = &hw->phy; 591 s32 ret_val = E1000_SUCCESS; 592 u16 nvm_data; 593 594 DEBUGFUNC("e1000_set_phy_mode_82540"); 595 596 if (hw->mac.type != e1000_82545_rev_3) 597 goto out; 598 599 ret_val = hw->nvm.ops.read(hw, NVM_PHY_CLASS_WORD, 1, &nvm_data); 600 if (ret_val) { 601 ret_val = -E1000_ERR_PHY; 602 goto out; 603 } 604 605 if ((nvm_data != NVM_RESERVED_WORD) && (nvm_data & NVM_PHY_CLASS_A)) { 606 ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 607 0x000B); 608 if (ret_val) { 609 ret_val = -E1000_ERR_PHY; 610 goto out; 611 } 612 ret_val = hw->phy.ops.write_reg(hw, 613 M88E1000_PHY_GEN_CONTROL, 614 0x8104); 615 if (ret_val) { 616 ret_val = -E1000_ERR_PHY; 617 goto out; 618 } 619 620 phy->reset_disable = FALSE; 621 } 622 623out: 624 return ret_val; 625} 626 627/** 628 * e1000_power_down_phy_copper_82540 - Remove link in case of PHY power down 629 * @hw: pointer to the HW structure 630 * 631 * In the case of a PHY power down to save power, or to turn off link during a 632 * driver unload, or wake on lan is not enabled, remove the link. 633 **/ 634static void e1000_power_down_phy_copper_82540(struct e1000_hw *hw) 635{ 636 /* If the management interface is not enabled, then power down */ 637 if (!(E1000_READ_REG(hw, E1000_MANC) & E1000_MANC_SMBUS_EN)) 638 e1000_power_down_phy_copper(hw); 639 640 return; 641} 642 643/** 644 * e1000_clear_hw_cntrs_82540 - Clear device specific hardware counters 645 * @hw: pointer to the HW structure 646 * 647 * Clears the hardware counters by reading the counter registers. 648 **/ 649static void e1000_clear_hw_cntrs_82540(struct e1000_hw *hw) 650{ 651 DEBUGFUNC("e1000_clear_hw_cntrs_82540"); 652 653 e1000_clear_hw_cntrs_base_generic(hw); 654 655 E1000_READ_REG(hw, E1000_PRC64); 656 E1000_READ_REG(hw, E1000_PRC127); 657 E1000_READ_REG(hw, E1000_PRC255); 658 E1000_READ_REG(hw, E1000_PRC511); 659 E1000_READ_REG(hw, E1000_PRC1023); 660 E1000_READ_REG(hw, E1000_PRC1522); 661 E1000_READ_REG(hw, E1000_PTC64); 662 E1000_READ_REG(hw, E1000_PTC127); 663 E1000_READ_REG(hw, E1000_PTC255); 664 E1000_READ_REG(hw, E1000_PTC511); 665 E1000_READ_REG(hw, E1000_PTC1023); 666 E1000_READ_REG(hw, E1000_PTC1522); 667 668 E1000_READ_REG(hw, E1000_ALGNERRC); 669 E1000_READ_REG(hw, E1000_RXERRC); 670 E1000_READ_REG(hw, E1000_TNCRS); 671 E1000_READ_REG(hw, E1000_CEXTERR); 672 E1000_READ_REG(hw, E1000_TSCTC); 673 E1000_READ_REG(hw, E1000_TSCTFC); 674 675 E1000_READ_REG(hw, E1000_MGTPRC); 676 E1000_READ_REG(hw, E1000_MGTPDC); 677 E1000_READ_REG(hw, E1000_MGTPTC); 678} 679 680/** 681 * e1000_read_mac_addr_82540 - Read device MAC address 682 * @hw: pointer to the HW structure 683 * 684 * Reads the device MAC address from the EEPROM and stores the value. 685 * Since devices with two ports use the same EEPROM, we increment the 686 * last bit in the MAC address for the second port. 687 * 688 * This version is being used over generic because of customer issues 689 * with VmWare and Virtual Box when using generic. It seems in 690 * the emulated 82545, RAR[0] does NOT have a valid address after a 691 * reset, this older method works and using this breaks nothing for 692 * these legacy adapters. 693 **/ 694s32 e1000_read_mac_addr_82540(struct e1000_hw *hw) 695{ 696 s32 ret_val = E1000_SUCCESS; 697 u16 offset, nvm_data, i; 698 699 DEBUGFUNC("e1000_read_mac_addr"); 700 701 for (i = 0; i < ETH_ADDR_LEN; i += 2) { 702 offset = i >> 1; 703 ret_val = hw->nvm.ops.read(hw, offset, 1, &nvm_data); 704 if (ret_val) { 705 DEBUGOUT("NVM Read Error\n"); 706 goto out; 707 } 708 hw->mac.perm_addr[i] = (u8)(nvm_data & 0xFF); 709 hw->mac.perm_addr[i+1] = (u8)(nvm_data >> 8); 710 } 711 712 /* Flip last bit of mac address if we're on second port */ 713 if (hw->bus.func == E1000_FUNC_1) 714 hw->mac.perm_addr[5] ^= 1; 715 716 for (i = 0; i < ETH_ADDR_LEN; i++) 717 hw->mac.addr[i] = hw->mac.perm_addr[i]; 718 719out: 720 return ret_val; 721} 722