1 /******************************************************************************* 2 3 Intel 10 Gigabit PCI Express Linux driver 4 Copyright(c) 1999 - 2014 Intel Corporation. 5 6 This program is free software; you can redistribute it and/or modify it 7 under the terms and conditions of the GNU General Public License, 8 version 2, as published by the Free Software Foundation. 9 10 This program is distributed in the hope it will be useful, but WITHOUT 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 more details. 14 15 You should have received a copy of the GNU General Public License along with 16 this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18 19 The full GNU General Public License is included in this distribution in 20 the file called "COPYING". 21 22 Contact Information: 23 Linux NICS <linux.nics@intel.com> 24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 26 27 *******************************************************************************/ 28 29 #include <linux/pci.h> 30 #include <linux/delay.h> 31 #include <linux/sched.h> 32 33 #include "ixgbe.h" 34 #include "ixgbe_phy.h" 35 36 #define IXGBE_X540_MAX_TX_QUEUES 128 37 #define IXGBE_X540_MAX_RX_QUEUES 128 38 #define IXGBE_X540_RAR_ENTRIES 128 39 #define IXGBE_X540_MC_TBL_SIZE 128 40 #define IXGBE_X540_VFT_TBL_SIZE 128 41 #define IXGBE_X540_RX_PB_SIZE 384 42 43 static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw); 44 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw); 45 static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask); 46 static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask); 47 static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw); 48 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw); 49 50 static enum ixgbe_media_type ixgbe_get_media_type_X540(struct ixgbe_hw *hw) 51 { 52 return ixgbe_media_type_copper; 53 } 54 55 static s32 ixgbe_get_invariants_X540(struct ixgbe_hw *hw) 56 { 57 struct ixgbe_mac_info *mac = &hw->mac; 58 59 /* Call PHY identify routine to get the phy type */ 60 ixgbe_identify_phy_generic(hw); 61 62 mac->mcft_size = IXGBE_X540_MC_TBL_SIZE; 63 mac->vft_size = IXGBE_X540_VFT_TBL_SIZE; 64 mac->num_rar_entries = IXGBE_X540_RAR_ENTRIES; 65 mac->rx_pb_size = IXGBE_X540_RX_PB_SIZE; 66 mac->max_rx_queues = IXGBE_X540_MAX_RX_QUEUES; 67 mac->max_tx_queues = IXGBE_X540_MAX_TX_QUEUES; 68 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw); 69 70 return 0; 71 } 72 73 /** 74 * ixgbe_setup_mac_link_X540 - Set the auto advertised capabilitires 75 * @hw: pointer to hardware structure 76 * @speed: new link speed 77 * @autoneg_wait_to_complete: true when waiting for completion is needed 78 **/ 79 static s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw, 80 ixgbe_link_speed speed, 81 bool autoneg_wait_to_complete) 82 { 83 return hw->phy.ops.setup_link_speed(hw, speed, 84 autoneg_wait_to_complete); 85 } 86 87 /** 88 * ixgbe_reset_hw_X540 - Perform hardware reset 89 * @hw: pointer to hardware structure 90 * 91 * Resets the hardware by resetting the transmit and receive units, masks 92 * and clears all interrupts, perform a PHY reset, and perform a link (MAC) 93 * reset. 94 **/ 95 static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw) 96 { 97 s32 status; 98 u32 ctrl, i; 99 100 /* Call adapter stop to disable tx/rx and clear interrupts */ 101 status = hw->mac.ops.stop_adapter(hw); 102 if (status) 103 return status; 104 105 /* flush pending Tx transactions */ 106 ixgbe_clear_tx_pending(hw); 107 108 mac_reset_top: 109 ctrl = IXGBE_CTRL_RST; 110 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); 111 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); 112 IXGBE_WRITE_FLUSH(hw); 113 114 /* Poll for reset bit to self-clear indicating reset is complete */ 115 for (i = 0; i < 10; i++) { 116 udelay(1); 117 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); 118 if (!(ctrl & IXGBE_CTRL_RST_MASK)) 119 break; 120 } 121 122 if (ctrl & IXGBE_CTRL_RST_MASK) { 123 status = IXGBE_ERR_RESET_FAILED; 124 hw_dbg(hw, "Reset polling failed to complete.\n"); 125 } 126 msleep(100); 127 128 /* 129 * Double resets are required for recovery from certain error 130 * conditions. Between resets, it is necessary to stall to allow time 131 * for any pending HW events to complete. 132 */ 133 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) { 134 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; 135 goto mac_reset_top; 136 } 137 138 /* Set the Rx packet buffer size. */ 139 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT); 140 141 /* Store the permanent mac address */ 142 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr); 143 144 /* 145 * Store MAC address from RAR0, clear receive address registers, and 146 * clear the multicast table. Also reset num_rar_entries to 128, 147 * since we modify this value when programming the SAN MAC address. 148 */ 149 hw->mac.num_rar_entries = IXGBE_X540_MAX_TX_QUEUES; 150 hw->mac.ops.init_rx_addrs(hw); 151 152 /* Store the permanent SAN mac address */ 153 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr); 154 155 /* Add the SAN MAC address to the RAR only if it's a valid address */ 156 if (is_valid_ether_addr(hw->mac.san_addr)) { 157 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1, 158 hw->mac.san_addr, 0, IXGBE_RAH_AV); 159 160 /* Save the SAN MAC RAR index */ 161 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; 162 163 /* Reserve the last RAR for the SAN MAC address */ 164 hw->mac.num_rar_entries--; 165 } 166 167 /* Store the alternative WWNN/WWPN prefix */ 168 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix, 169 &hw->mac.wwpn_prefix); 170 171 return status; 172 } 173 174 /** 175 * ixgbe_start_hw_X540 - Prepare hardware for Tx/Rx 176 * @hw: pointer to hardware structure 177 * 178 * Starts the hardware using the generic start_hw function 179 * and the generation start_hw function. 180 * Then performs revision-specific operations, if any. 181 **/ 182 static s32 ixgbe_start_hw_X540(struct ixgbe_hw *hw) 183 { 184 s32 ret_val; 185 186 ret_val = ixgbe_start_hw_generic(hw); 187 if (ret_val) 188 return ret_val; 189 190 return ixgbe_start_hw_gen2(hw); 191 } 192 193 /** 194 * ixgbe_init_eeprom_params_X540 - Initialize EEPROM params 195 * @hw: pointer to hardware structure 196 * 197 * Initializes the EEPROM parameters ixgbe_eeprom_info within the 198 * ixgbe_hw struct in order to set up EEPROM access. 199 **/ 200 static s32 ixgbe_init_eeprom_params_X540(struct ixgbe_hw *hw) 201 { 202 struct ixgbe_eeprom_info *eeprom = &hw->eeprom; 203 u32 eec; 204 u16 eeprom_size; 205 206 if (eeprom->type == ixgbe_eeprom_uninitialized) { 207 eeprom->semaphore_delay = 10; 208 eeprom->type = ixgbe_flash; 209 210 eec = IXGBE_READ_REG(hw, IXGBE_EEC); 211 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >> 212 IXGBE_EEC_SIZE_SHIFT); 213 eeprom->word_size = 1 << (eeprom_size + 214 IXGBE_EEPROM_WORD_SIZE_SHIFT); 215 216 hw_dbg(hw, "Eeprom params: type = %d, size = %d\n", 217 eeprom->type, eeprom->word_size); 218 } 219 220 return 0; 221 } 222 223 /** 224 * ixgbe_read_eerd_X540- Read EEPROM word using EERD 225 * @hw: pointer to hardware structure 226 * @offset: offset of word in the EEPROM to read 227 * @data: word read from the EEPROM 228 * 229 * Reads a 16 bit word from the EEPROM using the EERD register. 230 **/ 231 static s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data) 232 { 233 s32 status; 234 235 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 236 return IXGBE_ERR_SWFW_SYNC; 237 238 status = ixgbe_read_eerd_generic(hw, offset, data); 239 240 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 241 return status; 242 } 243 244 /** 245 * ixgbe_read_eerd_buffer_X540 - Read EEPROM word(s) using EERD 246 * @hw: pointer to hardware structure 247 * @offset: offset of word in the EEPROM to read 248 * @words: number of words 249 * @data: word(s) read from the EEPROM 250 * 251 * Reads a 16 bit word(s) from the EEPROM using the EERD register. 252 **/ 253 static s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw, 254 u16 offset, u16 words, u16 *data) 255 { 256 s32 status; 257 258 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 259 return IXGBE_ERR_SWFW_SYNC; 260 261 status = ixgbe_read_eerd_buffer_generic(hw, offset, words, data); 262 263 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 264 return status; 265 } 266 267 /** 268 * ixgbe_write_eewr_X540 - Write EEPROM word using EEWR 269 * @hw: pointer to hardware structure 270 * @offset: offset of word in the EEPROM to write 271 * @data: word write to the EEPROM 272 * 273 * Write a 16 bit word to the EEPROM using the EEWR register. 274 **/ 275 static s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data) 276 { 277 s32 status; 278 279 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 280 return IXGBE_ERR_SWFW_SYNC; 281 282 status = ixgbe_write_eewr_generic(hw, offset, data); 283 284 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 285 return status; 286 } 287 288 /** 289 * ixgbe_write_eewr_buffer_X540 - Write EEPROM word(s) using EEWR 290 * @hw: pointer to hardware structure 291 * @offset: offset of word in the EEPROM to write 292 * @words: number of words 293 * @data: word(s) write to the EEPROM 294 * 295 * Write a 16 bit word(s) to the EEPROM using the EEWR register. 296 **/ 297 static s32 ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw, 298 u16 offset, u16 words, u16 *data) 299 { 300 s32 status; 301 302 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 303 return IXGBE_ERR_SWFW_SYNC; 304 305 status = ixgbe_write_eewr_buffer_generic(hw, offset, words, data); 306 307 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 308 return status; 309 } 310 311 /** 312 * ixgbe_calc_eeprom_checksum_X540 - Calculates and returns the checksum 313 * 314 * This function does not use synchronization for EERD and EEWR. It can 315 * be used internally by function which utilize ixgbe_acquire_swfw_sync_X540. 316 * 317 * @hw: pointer to hardware structure 318 **/ 319 static u16 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw) 320 { 321 u16 i; 322 u16 j; 323 u16 checksum = 0; 324 u16 length = 0; 325 u16 pointer = 0; 326 u16 word = 0; 327 328 /* 329 * Do not use hw->eeprom.ops.read because we do not want to take 330 * the synchronization semaphores here. Instead use 331 * ixgbe_read_eerd_generic 332 */ 333 334 /* Include 0x0-0x3F in the checksum */ 335 for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) { 336 if (ixgbe_read_eerd_generic(hw, i, &word) != 0) { 337 hw_dbg(hw, "EEPROM read failed\n"); 338 break; 339 } 340 checksum += word; 341 } 342 343 /* 344 * Include all data from pointers 0x3, 0x6-0xE. This excludes the 345 * FW, PHY module, and PCIe Expansion/Option ROM pointers. 346 */ 347 for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) { 348 if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR) 349 continue; 350 351 if (ixgbe_read_eerd_generic(hw, i, &pointer) != 0) { 352 hw_dbg(hw, "EEPROM read failed\n"); 353 break; 354 } 355 356 /* Skip pointer section if the pointer is invalid. */ 357 if (pointer == 0xFFFF || pointer == 0 || 358 pointer >= hw->eeprom.word_size) 359 continue; 360 361 if (ixgbe_read_eerd_generic(hw, pointer, &length) != 0) { 362 hw_dbg(hw, "EEPROM read failed\n"); 363 break; 364 } 365 366 /* Skip pointer section if length is invalid. */ 367 if (length == 0xFFFF || length == 0 || 368 (pointer + length) >= hw->eeprom.word_size) 369 continue; 370 371 for (j = pointer+1; j <= pointer+length; j++) { 372 if (ixgbe_read_eerd_generic(hw, j, &word) != 0) { 373 hw_dbg(hw, "EEPROM read failed\n"); 374 break; 375 } 376 checksum += word; 377 } 378 } 379 380 checksum = (u16)IXGBE_EEPROM_SUM - checksum; 381 382 return checksum; 383 } 384 385 /** 386 * ixgbe_validate_eeprom_checksum_X540 - Validate EEPROM checksum 387 * @hw: pointer to hardware structure 388 * @checksum_val: calculated checksum 389 * 390 * Performs checksum calculation and validates the EEPROM checksum. If the 391 * caller does not need checksum_val, the value can be NULL. 392 **/ 393 static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw, 394 u16 *checksum_val) 395 { 396 s32 status; 397 u16 checksum; 398 u16 read_checksum = 0; 399 400 /* Read the first word from the EEPROM. If this times out or fails, do 401 * not continue or we could be in for a very long wait while every 402 * EEPROM read fails 403 */ 404 status = hw->eeprom.ops.read(hw, 0, &checksum); 405 if (status) { 406 hw_dbg(hw, "EEPROM read failed\n"); 407 return status; 408 } 409 410 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 411 return IXGBE_ERR_SWFW_SYNC; 412 413 checksum = hw->eeprom.ops.calc_checksum(hw); 414 415 /* Do not use hw->eeprom.ops.read because we do not want to take 416 * the synchronization semaphores twice here. 417 */ 418 status = ixgbe_read_eerd_generic(hw, IXGBE_EEPROM_CHECKSUM, 419 &read_checksum); 420 421 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 422 423 /* If the user cares, return the calculated checksum */ 424 if (checksum_val) 425 *checksum_val = checksum; 426 427 /* Verify read and calculated checksums are the same */ 428 if (read_checksum != checksum) 429 return IXGBE_ERR_EEPROM_CHECKSUM; 430 431 return status; 432 } 433 434 /** 435 * ixgbe_update_eeprom_checksum_X540 - Updates the EEPROM checksum and flash 436 * @hw: pointer to hardware structure 437 * 438 * After writing EEPROM to shadow RAM using EEWR register, software calculates 439 * checksum and updates the EEPROM and instructs the hardware to update 440 * the flash. 441 **/ 442 static s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw) 443 { 444 s32 status; 445 u16 checksum; 446 447 /* Read the first word from the EEPROM. If this times out or fails, do 448 * not continue or we could be in for a very long wait while every 449 * EEPROM read fails 450 */ 451 status = hw->eeprom.ops.read(hw, 0, &checksum); 452 if (status) { 453 hw_dbg(hw, "EEPROM read failed\n"); 454 return status; 455 } 456 457 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 458 return IXGBE_ERR_SWFW_SYNC; 459 460 checksum = hw->eeprom.ops.calc_checksum(hw); 461 462 /* Do not use hw->eeprom.ops.write because we do not want to 463 * take the synchronization semaphores twice here. 464 */ 465 status = ixgbe_write_eewr_generic(hw, IXGBE_EEPROM_CHECKSUM, checksum); 466 if (!status) 467 status = ixgbe_update_flash_X540(hw); 468 469 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 470 return status; 471 } 472 473 /** 474 * ixgbe_update_flash_X540 - Instruct HW to copy EEPROM to Flash device 475 * @hw: pointer to hardware structure 476 * 477 * Set FLUP (bit 23) of the EEC register to instruct Hardware to copy 478 * EEPROM from shadow RAM to the flash device. 479 **/ 480 static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw) 481 { 482 u32 flup; 483 s32 status; 484 485 status = ixgbe_poll_flash_update_done_X540(hw); 486 if (status == IXGBE_ERR_EEPROM) { 487 hw_dbg(hw, "Flash update time out\n"); 488 return status; 489 } 490 491 flup = IXGBE_READ_REG(hw, IXGBE_EEC) | IXGBE_EEC_FLUP; 492 IXGBE_WRITE_REG(hw, IXGBE_EEC, flup); 493 494 status = ixgbe_poll_flash_update_done_X540(hw); 495 if (status == 0) 496 hw_dbg(hw, "Flash update complete\n"); 497 else 498 hw_dbg(hw, "Flash update time out\n"); 499 500 if (hw->revision_id == 0) { 501 flup = IXGBE_READ_REG(hw, IXGBE_EEC); 502 503 if (flup & IXGBE_EEC_SEC1VAL) { 504 flup |= IXGBE_EEC_FLUP; 505 IXGBE_WRITE_REG(hw, IXGBE_EEC, flup); 506 } 507 508 status = ixgbe_poll_flash_update_done_X540(hw); 509 if (status == 0) 510 hw_dbg(hw, "Flash update complete\n"); 511 else 512 hw_dbg(hw, "Flash update time out\n"); 513 } 514 515 return status; 516 } 517 518 /** 519 * ixgbe_poll_flash_update_done_X540 - Poll flash update status 520 * @hw: pointer to hardware structure 521 * 522 * Polls the FLUDONE (bit 26) of the EEC Register to determine when the 523 * flash update is done. 524 **/ 525 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw) 526 { 527 u32 i; 528 u32 reg; 529 530 for (i = 0; i < IXGBE_FLUDONE_ATTEMPTS; i++) { 531 reg = IXGBE_READ_REG(hw, IXGBE_EEC); 532 if (reg & IXGBE_EEC_FLUDONE) 533 return 0; 534 udelay(5); 535 } 536 return IXGBE_ERR_EEPROM; 537 } 538 539 /** 540 * ixgbe_acquire_swfw_sync_X540 - Acquire SWFW semaphore 541 * @hw: pointer to hardware structure 542 * @mask: Mask to specify which semaphore to acquire 543 * 544 * Acquires the SWFW semaphore thought the SW_FW_SYNC register for 545 * the specified function (CSR, PHY0, PHY1, NVM, Flash) 546 **/ 547 static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask) 548 { 549 u32 swfw_sync; 550 u32 swmask = mask; 551 u32 fwmask = mask << 5; 552 u32 hwmask = 0; 553 u32 timeout = 200; 554 u32 i; 555 556 if (swmask == IXGBE_GSSR_EEP_SM) 557 hwmask = IXGBE_GSSR_FLASH_SM; 558 559 for (i = 0; i < timeout; i++) { 560 /* 561 * SW NVM semaphore bit is used for access to all 562 * SW_FW_SYNC bits (not just NVM) 563 */ 564 if (ixgbe_get_swfw_sync_semaphore(hw)) 565 return IXGBE_ERR_SWFW_SYNC; 566 567 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 568 if (!(swfw_sync & (fwmask | swmask | hwmask))) { 569 swfw_sync |= swmask; 570 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 571 ixgbe_release_swfw_sync_semaphore(hw); 572 break; 573 } else { 574 /* 575 * Firmware currently using resource (fwmask), 576 * hardware currently using resource (hwmask), 577 * or other software thread currently using 578 * resource (swmask) 579 */ 580 ixgbe_release_swfw_sync_semaphore(hw); 581 usleep_range(5000, 10000); 582 } 583 } 584 585 /* 586 * If the resource is not released by the FW/HW the SW can assume that 587 * the FW/HW malfunctions. In that case the SW should sets the 588 * SW bit(s) of the requested resource(s) while ignoring the 589 * corresponding FW/HW bits in the SW_FW_SYNC register. 590 */ 591 if (i >= timeout) { 592 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 593 if (swfw_sync & (fwmask | hwmask)) { 594 if (ixgbe_get_swfw_sync_semaphore(hw)) 595 return IXGBE_ERR_SWFW_SYNC; 596 597 swfw_sync |= swmask; 598 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 599 ixgbe_release_swfw_sync_semaphore(hw); 600 } 601 } 602 603 usleep_range(5000, 10000); 604 return 0; 605 } 606 607 /** 608 * ixgbe_release_swfw_sync_X540 - Release SWFW semaphore 609 * @hw: pointer to hardware structure 610 * @mask: Mask to specify which semaphore to release 611 * 612 * Releases the SWFW semaphore through the SW_FW_SYNC register 613 * for the specified function (CSR, PHY0, PHY1, EVM, Flash) 614 **/ 615 static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask) 616 { 617 u32 swfw_sync; 618 u32 swmask = mask; 619 620 ixgbe_get_swfw_sync_semaphore(hw); 621 622 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 623 swfw_sync &= ~swmask; 624 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 625 626 ixgbe_release_swfw_sync_semaphore(hw); 627 usleep_range(5000, 10000); 628 } 629 630 /** 631 * ixgbe_get_swfw_sync_semaphore - Get hardware semaphore 632 * @hw: pointer to hardware structure 633 * 634 * Sets the hardware semaphores so SW/FW can gain control of shared resources 635 */ 636 static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw) 637 { 638 u32 timeout = 2000; 639 u32 i; 640 u32 swsm; 641 642 /* Get SMBI software semaphore between device drivers first */ 643 for (i = 0; i < timeout; i++) { 644 /* If the SMBI bit is 0 when we read it, then the bit will be 645 * set and we have the semaphore 646 */ 647 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); 648 if (!(swsm & IXGBE_SWSM_SMBI)) 649 break; 650 usleep_range(50, 100); 651 } 652 653 if (i == timeout) { 654 hw_dbg(hw, 655 "Software semaphore SMBI between device drivers not granted.\n"); 656 return IXGBE_ERR_EEPROM; 657 } 658 659 /* Now get the semaphore between SW/FW through the REGSMP bit */ 660 for (i = 0; i < timeout; i++) { 661 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 662 if (!(swsm & IXGBE_SWFW_REGSMP)) 663 return 0; 664 665 usleep_range(50, 100); 666 } 667 668 return IXGBE_ERR_EEPROM; 669 } 670 671 /** 672 * ixgbe_release_nvm_semaphore - Release hardware semaphore 673 * @hw: pointer to hardware structure 674 * 675 * This function clears hardware semaphore bits. 676 **/ 677 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw) 678 { 679 u32 swsm; 680 681 /* Release both semaphores by writing 0 to the bits REGSMP and SMBI */ 682 683 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); 684 swsm &= ~IXGBE_SWSM_SMBI; 685 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); 686 687 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 688 swsm &= ~IXGBE_SWFW_REGSMP; 689 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swsm); 690 691 IXGBE_WRITE_FLUSH(hw); 692 } 693 694 /** 695 * ixgbe_blink_led_start_X540 - Blink LED based on index. 696 * @hw: pointer to hardware structure 697 * @index: led number to blink 698 * 699 * Devices that implement the version 2 interface: 700 * X540 701 **/ 702 static s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index) 703 { 704 u32 macc_reg; 705 u32 ledctl_reg; 706 ixgbe_link_speed speed; 707 bool link_up; 708 709 /* 710 * Link should be up in order for the blink bit in the LED control 711 * register to work. Force link and speed in the MAC if link is down. 712 * This will be reversed when we stop the blinking. 713 */ 714 hw->mac.ops.check_link(hw, &speed, &link_up, false); 715 if (!link_up) { 716 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 717 macc_reg |= IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS; 718 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 719 } 720 /* Set the LED to LINK_UP + BLINK. */ 721 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 722 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 723 ledctl_reg |= IXGBE_LED_BLINK(index); 724 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 725 IXGBE_WRITE_FLUSH(hw); 726 727 return 0; 728 } 729 730 /** 731 * ixgbe_blink_led_stop_X540 - Stop blinking LED based on index. 732 * @hw: pointer to hardware structure 733 * @index: led number to stop blinking 734 * 735 * Devices that implement the version 2 interface: 736 * X540 737 **/ 738 static s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index) 739 { 740 u32 macc_reg; 741 u32 ledctl_reg; 742 743 /* Restore the LED to its default value. */ 744 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 745 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 746 ledctl_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index); 747 ledctl_reg &= ~IXGBE_LED_BLINK(index); 748 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 749 750 /* Unforce link and speed in the MAC. */ 751 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 752 macc_reg &= ~(IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS); 753 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 754 IXGBE_WRITE_FLUSH(hw); 755 756 return 0; 757 } 758 static struct ixgbe_mac_operations mac_ops_X540 = { 759 .init_hw = &ixgbe_init_hw_generic, 760 .reset_hw = &ixgbe_reset_hw_X540, 761 .start_hw = &ixgbe_start_hw_X540, 762 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, 763 .get_media_type = &ixgbe_get_media_type_X540, 764 .enable_rx_dma = &ixgbe_enable_rx_dma_generic, 765 .get_mac_addr = &ixgbe_get_mac_addr_generic, 766 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic, 767 .get_device_caps = &ixgbe_get_device_caps_generic, 768 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic, 769 .stop_adapter = &ixgbe_stop_adapter_generic, 770 .get_bus_info = &ixgbe_get_bus_info_generic, 771 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, 772 .read_analog_reg8 = NULL, 773 .write_analog_reg8 = NULL, 774 .setup_link = &ixgbe_setup_mac_link_X540, 775 .set_rxpba = &ixgbe_set_rxpba_generic, 776 .check_link = &ixgbe_check_mac_link_generic, 777 .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic, 778 .led_on = &ixgbe_led_on_generic, 779 .led_off = &ixgbe_led_off_generic, 780 .blink_led_start = &ixgbe_blink_led_start_X540, 781 .blink_led_stop = &ixgbe_blink_led_stop_X540, 782 .set_rar = &ixgbe_set_rar_generic, 783 .clear_rar = &ixgbe_clear_rar_generic, 784 .set_vmdq = &ixgbe_set_vmdq_generic, 785 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, 786 .clear_vmdq = &ixgbe_clear_vmdq_generic, 787 .init_rx_addrs = &ixgbe_init_rx_addrs_generic, 788 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, 789 .enable_mc = &ixgbe_enable_mc_generic, 790 .disable_mc = &ixgbe_disable_mc_generic, 791 .clear_vfta = &ixgbe_clear_vfta_generic, 792 .set_vfta = &ixgbe_set_vfta_generic, 793 .fc_enable = &ixgbe_fc_enable_generic, 794 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic, 795 .init_uta_tables = &ixgbe_init_uta_tables_generic, 796 .setup_sfp = NULL, 797 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, 798 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, 799 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540, 800 .release_swfw_sync = &ixgbe_release_swfw_sync_X540, 801 .disable_rx_buff = &ixgbe_disable_rx_buff_generic, 802 .enable_rx_buff = &ixgbe_enable_rx_buff_generic, 803 .get_thermal_sensor_data = NULL, 804 .init_thermal_sensor_thresh = NULL, 805 .prot_autoc_read = &prot_autoc_read_generic, 806 .prot_autoc_write = &prot_autoc_write_generic, 807 }; 808 809 static struct ixgbe_eeprom_operations eeprom_ops_X540 = { 810 .init_params = &ixgbe_init_eeprom_params_X540, 811 .read = &ixgbe_read_eerd_X540, 812 .read_buffer = &ixgbe_read_eerd_buffer_X540, 813 .write = &ixgbe_write_eewr_X540, 814 .write_buffer = &ixgbe_write_eewr_buffer_X540, 815 .calc_checksum = &ixgbe_calc_eeprom_checksum_X540, 816 .validate_checksum = &ixgbe_validate_eeprom_checksum_X540, 817 .update_checksum = &ixgbe_update_eeprom_checksum_X540, 818 }; 819 820 static struct ixgbe_phy_operations phy_ops_X540 = { 821 .identify = &ixgbe_identify_phy_generic, 822 .identify_sfp = &ixgbe_identify_sfp_module_generic, 823 .init = NULL, 824 .reset = NULL, 825 .read_reg = &ixgbe_read_phy_reg_generic, 826 .write_reg = &ixgbe_write_phy_reg_generic, 827 .setup_link = &ixgbe_setup_phy_link_generic, 828 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, 829 .read_i2c_byte = &ixgbe_read_i2c_byte_generic, 830 .write_i2c_byte = &ixgbe_write_i2c_byte_generic, 831 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, 832 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, 833 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, 834 .check_overtemp = &ixgbe_tn_check_overtemp, 835 .get_firmware_version = &ixgbe_get_phy_firmware_version_generic, 836 }; 837 838 struct ixgbe_info ixgbe_X540_info = { 839 .mac = ixgbe_mac_X540, 840 .get_invariants = &ixgbe_get_invariants_X540, 841 .mac_ops = &mac_ops_X540, 842 .eeprom_ops = &eeprom_ops_X540, 843 .phy_ops = &phy_ops_X540, 844 .mbx_ops = &mbx_ops_generic, 845 }; 846