1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 1999 - 2018 Intel Corporation. */ 3 4 #include <linux/pci.h> 5 #include <linux/delay.h> 6 #include <linux/sched.h> 7 8 #include "ixgbe.h" 9 #include "ixgbe_phy.h" 10 #include "ixgbe_x540.h" 11 12 #define IXGBE_X540_MAX_TX_QUEUES 128 13 #define IXGBE_X540_MAX_RX_QUEUES 128 14 #define IXGBE_X540_RAR_ENTRIES 128 15 #define IXGBE_X540_MC_TBL_SIZE 128 16 #define IXGBE_X540_VFT_TBL_SIZE 128 17 #define IXGBE_X540_RX_PB_SIZE 384 18 19 static int ixgbe_update_flash_X540(struct ixgbe_hw *hw); 20 static int ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw); 21 static int ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw); 22 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw); 23 24 enum ixgbe_media_type ixgbe_get_media_type_X540(struct ixgbe_hw *hw) 25 { 26 return ixgbe_media_type_copper; 27 } 28 29 int ixgbe_get_invariants_X540(struct ixgbe_hw *hw) 30 { 31 struct ixgbe_mac_info *mac = &hw->mac; 32 struct ixgbe_phy_info *phy = &hw->phy; 33 34 /* set_phy_power was set by default to NULL */ 35 phy->ops.set_phy_power = ixgbe_set_copper_phy_power; 36 37 mac->mcft_size = IXGBE_X540_MC_TBL_SIZE; 38 mac->vft_size = IXGBE_X540_VFT_TBL_SIZE; 39 mac->num_rar_entries = IXGBE_X540_RAR_ENTRIES; 40 mac->rx_pb_size = IXGBE_X540_RX_PB_SIZE; 41 mac->max_rx_queues = IXGBE_X540_MAX_RX_QUEUES; 42 mac->max_tx_queues = IXGBE_X540_MAX_TX_QUEUES; 43 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw); 44 45 return 0; 46 } 47 48 /** 49 * ixgbe_setup_mac_link_X540 - Set the auto advertised capabilitires 50 * @hw: pointer to hardware structure 51 * @speed: new link speed 52 * @autoneg_wait_to_complete: true when waiting for completion is needed 53 **/ 54 int ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw, ixgbe_link_speed speed, 55 bool autoneg_wait_to_complete) 56 { 57 return hw->phy.ops.setup_link_speed(hw, speed, 58 autoneg_wait_to_complete); 59 } 60 61 /** 62 * ixgbe_reset_hw_X540 - Perform hardware reset 63 * @hw: pointer to hardware structure 64 * 65 * Resets the hardware by resetting the transmit and receive units, masks 66 * and clears all interrupts, perform a PHY reset, and perform a link (MAC) 67 * reset. 68 **/ 69 int ixgbe_reset_hw_X540(struct ixgbe_hw *hw) 70 { 71 u32 swfw_mask = hw->phy.phy_semaphore_mask; 72 u32 ctrl, i; 73 int status; 74 75 /* Call adapter stop to disable tx/rx and clear interrupts */ 76 status = hw->mac.ops.stop_adapter(hw); 77 if (status) 78 return status; 79 80 /* flush pending Tx transactions */ 81 ixgbe_clear_tx_pending(hw); 82 83 mac_reset_top: 84 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); 85 if (status) { 86 hw_dbg(hw, "semaphore failed with %d", status); 87 return -EBUSY; 88 } 89 90 ctrl = IXGBE_CTRL_RST; 91 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); 92 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); 93 IXGBE_WRITE_FLUSH(hw); 94 hw->mac.ops.release_swfw_sync(hw, swfw_mask); 95 usleep_range(1000, 1200); 96 97 /* Poll for reset bit to self-clear indicating reset is complete */ 98 for (i = 0; i < 10; i++) { 99 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); 100 if (!(ctrl & IXGBE_CTRL_RST_MASK)) 101 break; 102 udelay(1); 103 } 104 105 if (ctrl & IXGBE_CTRL_RST_MASK) { 106 status = -EIO; 107 hw_dbg(hw, "Reset polling failed to complete.\n"); 108 } 109 msleep(100); 110 111 /* 112 * Double resets are required for recovery from certain error 113 * conditions. Between resets, it is necessary to stall to allow time 114 * for any pending HW events to complete. 115 */ 116 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) { 117 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; 118 goto mac_reset_top; 119 } 120 121 /* Set the Rx packet buffer size. */ 122 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT); 123 124 /* Store the permanent mac address */ 125 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr); 126 127 /* 128 * Store MAC address from RAR0, clear receive address registers, and 129 * clear the multicast table. Also reset num_rar_entries to 128, 130 * since we modify this value when programming the SAN MAC address. 131 */ 132 hw->mac.num_rar_entries = IXGBE_X540_MAX_TX_QUEUES; 133 hw->mac.ops.init_rx_addrs(hw); 134 135 /* Store the permanent SAN mac address */ 136 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr); 137 138 /* Add the SAN MAC address to the RAR only if it's a valid address */ 139 if (is_valid_ether_addr(hw->mac.san_addr)) { 140 /* Save the SAN MAC RAR index */ 141 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; 142 143 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index, 144 hw->mac.san_addr, 0, IXGBE_RAH_AV); 145 146 /* clear VMDq pool/queue selection for this RAR */ 147 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index, 148 IXGBE_CLEAR_VMDQ_ALL); 149 150 /* Reserve the last RAR for the SAN MAC address */ 151 hw->mac.num_rar_entries--; 152 } 153 154 /* Store the alternative WWNN/WWPN prefix */ 155 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix, 156 &hw->mac.wwpn_prefix); 157 158 return status; 159 } 160 161 /** 162 * ixgbe_start_hw_X540 - Prepare hardware for Tx/Rx 163 * @hw: pointer to hardware structure 164 * 165 * Starts the hardware using the generic start_hw function 166 * and the generation start_hw function. 167 * Then performs revision-specific operations, if any. 168 **/ 169 int ixgbe_start_hw_X540(struct ixgbe_hw *hw) 170 { 171 int ret_val; 172 173 ret_val = ixgbe_start_hw_generic(hw); 174 if (ret_val) 175 return ret_val; 176 177 return ixgbe_start_hw_gen2(hw); 178 } 179 180 /** 181 * ixgbe_init_eeprom_params_X540 - Initialize EEPROM params 182 * @hw: pointer to hardware structure 183 * 184 * Initializes the EEPROM parameters ixgbe_eeprom_info within the 185 * ixgbe_hw struct in order to set up EEPROM access. 186 **/ 187 int ixgbe_init_eeprom_params_X540(struct ixgbe_hw *hw) 188 { 189 struct ixgbe_eeprom_info *eeprom = &hw->eeprom; 190 191 if (eeprom->type == ixgbe_eeprom_uninitialized) { 192 u16 eeprom_size; 193 u32 eec; 194 195 eeprom->semaphore_delay = 10; 196 eeprom->type = ixgbe_flash; 197 198 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); 199 eeprom_size = FIELD_GET(IXGBE_EEC_SIZE, eec); 200 eeprom->word_size = BIT(eeprom_size + 201 IXGBE_EEPROM_WORD_SIZE_SHIFT); 202 203 hw_dbg(hw, "Eeprom params: type = %d, size = %d\n", 204 eeprom->type, eeprom->word_size); 205 } 206 207 return 0; 208 } 209 210 /** 211 * ixgbe_read_eerd_X540- Read EEPROM word using EERD 212 * @hw: pointer to hardware structure 213 * @offset: offset of word in the EEPROM to read 214 * @data: word read from the EEPROM 215 * 216 * Reads a 16 bit word from the EEPROM using the EERD register. 217 **/ 218 static int ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data) 219 { 220 int status; 221 222 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 223 return -EBUSY; 224 225 status = ixgbe_read_eerd_generic(hw, offset, data); 226 227 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 228 return status; 229 } 230 231 /** 232 * ixgbe_read_eerd_buffer_X540 - Read EEPROM word(s) using EERD 233 * @hw: pointer to hardware structure 234 * @offset: offset of word in the EEPROM to read 235 * @words: number of words 236 * @data: word(s) read from the EEPROM 237 * 238 * Reads a 16 bit word(s) from the EEPROM using the EERD register. 239 **/ 240 static int ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw, 241 u16 offset, u16 words, u16 *data) 242 { 243 int status; 244 245 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 246 return -EBUSY; 247 248 status = ixgbe_read_eerd_buffer_generic(hw, offset, words, data); 249 250 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 251 return status; 252 } 253 254 /** 255 * ixgbe_write_eewr_X540 - Write EEPROM word using EEWR 256 * @hw: pointer to hardware structure 257 * @offset: offset of word in the EEPROM to write 258 * @data: word write to the EEPROM 259 * 260 * Write a 16 bit word to the EEPROM using the EEWR register. 261 **/ 262 static int ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data) 263 { 264 int status; 265 266 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 267 return -EBUSY; 268 269 status = ixgbe_write_eewr_generic(hw, offset, data); 270 271 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 272 return status; 273 } 274 275 /** 276 * ixgbe_write_eewr_buffer_X540 - Write EEPROM word(s) using EEWR 277 * @hw: pointer to hardware structure 278 * @offset: offset of word in the EEPROM to write 279 * @words: number of words 280 * @data: word(s) write to the EEPROM 281 * 282 * Write a 16 bit word(s) to the EEPROM using the EEWR register. 283 **/ 284 static int ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw, 285 u16 offset, u16 words, u16 *data) 286 { 287 int status; 288 289 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 290 return -EBUSY; 291 292 status = ixgbe_write_eewr_buffer_generic(hw, offset, words, data); 293 294 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 295 return status; 296 } 297 298 /** 299 * ixgbe_calc_eeprom_checksum_X540 - Calculates and returns the checksum 300 * 301 * This function does not use synchronization for EERD and EEWR. It can 302 * be used internally by function which utilize ixgbe_acquire_swfw_sync_X540. 303 * 304 * @hw: pointer to hardware structure 305 **/ 306 static int ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw) 307 { 308 u16 i; 309 u16 j; 310 u16 checksum = 0; 311 u16 length = 0; 312 u16 pointer = 0; 313 u16 word = 0; 314 u16 checksum_last_word = IXGBE_EEPROM_CHECKSUM; 315 u16 ptr_start = IXGBE_PCIE_ANALOG_PTR; 316 317 /* 318 * Do not use hw->eeprom.ops.read because we do not want to take 319 * the synchronization semaphores here. Instead use 320 * ixgbe_read_eerd_generic 321 */ 322 323 /* Include 0x0-0x3F in the checksum */ 324 for (i = 0; i < checksum_last_word; i++) { 325 if (ixgbe_read_eerd_generic(hw, i, &word)) { 326 hw_dbg(hw, "EEPROM read failed\n"); 327 return -EIO; 328 } 329 checksum += word; 330 } 331 332 /* 333 * Include all data from pointers 0x3, 0x6-0xE. This excludes the 334 * FW, PHY module, and PCIe Expansion/Option ROM pointers. 335 */ 336 for (i = ptr_start; i < IXGBE_FW_PTR; i++) { 337 if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR) 338 continue; 339 340 if (ixgbe_read_eerd_generic(hw, i, &pointer)) { 341 hw_dbg(hw, "EEPROM read failed\n"); 342 break; 343 } 344 345 /* Skip pointer section if the pointer is invalid. */ 346 if (pointer == 0xFFFF || pointer == 0 || 347 pointer >= hw->eeprom.word_size) 348 continue; 349 350 if (ixgbe_read_eerd_generic(hw, pointer, &length)) { 351 hw_dbg(hw, "EEPROM read failed\n"); 352 return -EIO; 353 } 354 355 /* Skip pointer section if length is invalid. */ 356 if (length == 0xFFFF || length == 0 || 357 (pointer + length) >= hw->eeprom.word_size) 358 continue; 359 360 for (j = pointer + 1; j <= pointer + length; j++) { 361 if (ixgbe_read_eerd_generic(hw, j, &word)) { 362 hw_dbg(hw, "EEPROM read failed\n"); 363 return -EIO; 364 } 365 checksum += word; 366 } 367 } 368 369 checksum = (u16)IXGBE_EEPROM_SUM - checksum; 370 371 return (int)checksum; 372 } 373 374 /** 375 * ixgbe_validate_eeprom_checksum_X540 - Validate EEPROM checksum 376 * @hw: pointer to hardware structure 377 * @checksum_val: calculated checksum 378 * 379 * Performs checksum calculation and validates the EEPROM checksum. If the 380 * caller does not need checksum_val, the value can be NULL. 381 **/ 382 static int ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw, 383 u16 *checksum_val) 384 { 385 u16 read_checksum = 0; 386 u16 checksum; 387 int status; 388 389 /* Read the first word from the EEPROM. If this times out or fails, do 390 * not continue or we could be in for a very long wait while every 391 * EEPROM read fails 392 */ 393 status = hw->eeprom.ops.read(hw, 0, &checksum); 394 if (status) { 395 hw_dbg(hw, "EEPROM read failed\n"); 396 return status; 397 } 398 399 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 400 return -EBUSY; 401 402 status = hw->eeprom.ops.calc_checksum(hw); 403 if (status < 0) 404 goto out; 405 406 checksum = (u16)(status & 0xffff); 407 408 /* Do not use hw->eeprom.ops.read because we do not want to take 409 * the synchronization semaphores twice here. 410 */ 411 status = ixgbe_read_eerd_generic(hw, IXGBE_EEPROM_CHECKSUM, 412 &read_checksum); 413 if (status) 414 goto out; 415 416 /* Verify read checksum from EEPROM is the same as 417 * calculated checksum 418 */ 419 if (read_checksum != checksum) { 420 hw_dbg(hw, "Invalid EEPROM checksum"); 421 status = -EIO; 422 } 423 424 /* If the user cares, return the calculated checksum */ 425 if (checksum_val) 426 *checksum_val = checksum; 427 428 out: 429 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 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 int ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw) 443 { 444 u16 checksum; 445 int status; 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 -EBUSY; 459 460 status = hw->eeprom.ops.calc_checksum(hw); 461 if (status < 0) 462 goto out; 463 464 checksum = (u16)(status & 0xffff); 465 466 /* Do not use hw->eeprom.ops.write because we do not want to 467 * take the synchronization semaphores twice here. 468 */ 469 status = ixgbe_write_eewr_generic(hw, IXGBE_EEPROM_CHECKSUM, checksum); 470 if (status) 471 goto out; 472 473 status = ixgbe_update_flash_X540(hw); 474 475 out: 476 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 477 return status; 478 } 479 480 /** 481 * ixgbe_update_flash_X540 - Instruct HW to copy EEPROM to Flash device 482 * @hw: pointer to hardware structure 483 * 484 * Set FLUP (bit 23) of the EEC register to instruct Hardware to copy 485 * EEPROM from shadow RAM to the flash device. 486 **/ 487 static int ixgbe_update_flash_X540(struct ixgbe_hw *hw) 488 { 489 int status; 490 u32 flup; 491 492 status = ixgbe_poll_flash_update_done_X540(hw); 493 if (status == -EIO) { 494 hw_dbg(hw, "Flash update time out\n"); 495 return status; 496 } 497 498 flup = IXGBE_READ_REG(hw, IXGBE_EEC(hw)) | IXGBE_EEC_FLUP; 499 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), flup); 500 501 status = ixgbe_poll_flash_update_done_X540(hw); 502 if (status == 0) 503 hw_dbg(hw, "Flash update complete\n"); 504 else 505 hw_dbg(hw, "Flash update time out\n"); 506 507 if (hw->revision_id == 0) { 508 flup = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); 509 510 if (flup & IXGBE_EEC_SEC1VAL) { 511 flup |= IXGBE_EEC_FLUP; 512 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), flup); 513 } 514 515 status = ixgbe_poll_flash_update_done_X540(hw); 516 if (status == 0) 517 hw_dbg(hw, "Flash update complete\n"); 518 else 519 hw_dbg(hw, "Flash update time out\n"); 520 } 521 522 return status; 523 } 524 525 /** 526 * ixgbe_poll_flash_update_done_X540 - Poll flash update status 527 * @hw: pointer to hardware structure 528 * 529 * Polls the FLUDONE (bit 26) of the EEC Register to determine when the 530 * flash update is done. 531 **/ 532 static int ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw) 533 { 534 u32 i; 535 u32 reg; 536 537 for (i = 0; i < IXGBE_FLUDONE_ATTEMPTS; i++) { 538 reg = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); 539 if (reg & IXGBE_EEC_FLUDONE) 540 return 0; 541 udelay(5); 542 } 543 return -EIO; 544 } 545 546 /** 547 * ixgbe_acquire_swfw_sync_X540 - Acquire SWFW semaphore 548 * @hw: pointer to hardware structure 549 * @mask: Mask to specify which semaphore to acquire 550 * 551 * Acquires the SWFW semaphore thought the SW_FW_SYNC register for 552 * the specified function (CSR, PHY0, PHY1, NVM, Flash) 553 **/ 554 int ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask) 555 { 556 u32 swmask = mask & IXGBE_GSSR_NVM_PHY_MASK; 557 u32 swi2c_mask = mask & IXGBE_GSSR_I2C_MASK; 558 u32 fwmask = swmask << 5; 559 u32 timeout = 200; 560 u32 hwmask = 0; 561 u32 swfw_sync; 562 u32 i; 563 564 if (swmask & IXGBE_GSSR_EEP_SM) 565 hwmask = IXGBE_GSSR_FLASH_SM; 566 567 /* SW only mask does not have FW bit pair */ 568 if (mask & IXGBE_GSSR_SW_MNG_SM) 569 swmask |= IXGBE_GSSR_SW_MNG_SM; 570 571 swmask |= swi2c_mask; 572 fwmask |= swi2c_mask << 2; 573 for (i = 0; i < timeout; i++) { 574 /* SW NVM semaphore bit is used for access to all 575 * SW_FW_SYNC bits (not just NVM) 576 */ 577 if (ixgbe_get_swfw_sync_semaphore(hw)) 578 return -EBUSY; 579 580 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw)); 581 if (!(swfw_sync & (fwmask | swmask | hwmask))) { 582 swfw_sync |= swmask; 583 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC(hw), swfw_sync); 584 ixgbe_release_swfw_sync_semaphore(hw); 585 usleep_range(5000, 6000); 586 return 0; 587 } 588 /* Firmware currently using resource (fwmask), hardware 589 * currently using resource (hwmask), or other software 590 * thread currently using resource (swmask) 591 */ 592 ixgbe_release_swfw_sync_semaphore(hw); 593 usleep_range(5000, 10000); 594 } 595 596 /* If the resource is not released by the FW/HW the SW can assume that 597 * the FW/HW malfunctions. In that case the SW should set the SW bit(s) 598 * of the requested resource(s) while ignoring the corresponding FW/HW 599 * bits in the SW_FW_SYNC register. 600 */ 601 if (ixgbe_get_swfw_sync_semaphore(hw)) 602 return -EBUSY; 603 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw)); 604 if (swfw_sync & (fwmask | hwmask)) { 605 swfw_sync |= swmask; 606 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC(hw), swfw_sync); 607 ixgbe_release_swfw_sync_semaphore(hw); 608 usleep_range(5000, 6000); 609 return 0; 610 } 611 /* If the resource is not released by other SW the SW can assume that 612 * the other SW malfunctions. In that case the SW should clear all SW 613 * flags that it does not own and then repeat the whole process once 614 * again. 615 */ 616 if (swfw_sync & swmask) { 617 u32 rmask = IXGBE_GSSR_EEP_SM | IXGBE_GSSR_PHY0_SM | 618 IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM | 619 IXGBE_GSSR_SW_MNG_SM; 620 621 if (swi2c_mask) 622 rmask |= IXGBE_GSSR_I2C_MASK; 623 ixgbe_release_swfw_sync_X540(hw, rmask); 624 ixgbe_release_swfw_sync_semaphore(hw); 625 return -EBUSY; 626 } 627 ixgbe_release_swfw_sync_semaphore(hw); 628 629 return -EBUSY; 630 } 631 632 /** 633 * ixgbe_release_swfw_sync_X540 - Release SWFW semaphore 634 * @hw: pointer to hardware structure 635 * @mask: Mask to specify which semaphore to release 636 * 637 * Releases the SWFW semaphore through the SW_FW_SYNC register 638 * for the specified function (CSR, PHY0, PHY1, EVM, Flash) 639 **/ 640 void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask) 641 { 642 u32 swmask = mask & (IXGBE_GSSR_NVM_PHY_MASK | IXGBE_GSSR_SW_MNG_SM); 643 u32 swfw_sync; 644 645 if (mask & IXGBE_GSSR_I2C_MASK) 646 swmask |= mask & IXGBE_GSSR_I2C_MASK; 647 ixgbe_get_swfw_sync_semaphore(hw); 648 649 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw)); 650 swfw_sync &= ~swmask; 651 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC(hw), swfw_sync); 652 653 ixgbe_release_swfw_sync_semaphore(hw); 654 usleep_range(5000, 6000); 655 } 656 657 /** 658 * ixgbe_get_swfw_sync_semaphore - Get hardware semaphore 659 * @hw: pointer to hardware structure 660 * 661 * Sets the hardware semaphores so SW/FW can gain control of shared resources 662 */ 663 static int ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw) 664 { 665 u32 timeout = 2000; 666 u32 i; 667 u32 swsm; 668 669 /* Get SMBI software semaphore between device drivers first */ 670 for (i = 0; i < timeout; i++) { 671 /* If the SMBI bit is 0 when we read it, then the bit will be 672 * set and we have the semaphore 673 */ 674 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw)); 675 if (!(swsm & IXGBE_SWSM_SMBI)) 676 break; 677 usleep_range(50, 100); 678 } 679 680 if (i == timeout) { 681 hw_dbg(hw, 682 "Software semaphore SMBI between device drivers not granted.\n"); 683 return -EIO; 684 } 685 686 /* Now get the semaphore between SW/FW through the REGSMP bit */ 687 for (i = 0; i < timeout; i++) { 688 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw)); 689 if (!(swsm & IXGBE_SWFW_REGSMP)) 690 return 0; 691 692 usleep_range(50, 100); 693 } 694 695 /* Release semaphores and return error if SW NVM semaphore 696 * was not granted because we do not have access to the EEPROM 697 */ 698 hw_dbg(hw, "REGSMP Software NVM semaphore not granted\n"); 699 ixgbe_release_swfw_sync_semaphore(hw); 700 return -EIO; 701 } 702 703 /** 704 * ixgbe_release_swfw_sync_semaphore - Release hardware semaphore 705 * @hw: pointer to hardware structure 706 * 707 * This function clears hardware semaphore bits. 708 **/ 709 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw) 710 { 711 u32 swsm; 712 713 /* Release both semaphores by writing 0 to the bits REGSMP and SMBI */ 714 715 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw)); 716 swsm &= ~IXGBE_SWFW_REGSMP; 717 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC(hw), swsm); 718 719 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw)); 720 swsm &= ~IXGBE_SWSM_SMBI; 721 IXGBE_WRITE_REG(hw, IXGBE_SWSM(hw), swsm); 722 723 IXGBE_WRITE_FLUSH(hw); 724 } 725 726 /** 727 * ixgbe_init_swfw_sync_X540 - Release hardware semaphore 728 * @hw: pointer to hardware structure 729 * 730 * This function reset hardware semaphore bits for a semaphore that may 731 * have be left locked due to a catastrophic failure. 732 **/ 733 void ixgbe_init_swfw_sync_X540(struct ixgbe_hw *hw) 734 { 735 u32 rmask; 736 737 /* First try to grab the semaphore but we don't need to bother 738 * looking to see whether we got the lock or not since we do 739 * the same thing regardless of whether we got the lock or not. 740 * We got the lock - we release it. 741 * We timeout trying to get the lock - we force its release. 742 */ 743 ixgbe_get_swfw_sync_semaphore(hw); 744 ixgbe_release_swfw_sync_semaphore(hw); 745 746 /* Acquire and release all software resources. */ 747 rmask = IXGBE_GSSR_EEP_SM | IXGBE_GSSR_PHY0_SM | 748 IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM | 749 IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_I2C_MASK; 750 751 ixgbe_acquire_swfw_sync_X540(hw, rmask); 752 ixgbe_release_swfw_sync_X540(hw, rmask); 753 } 754 755 /** 756 * ixgbe_blink_led_start_X540 - Blink LED based on index. 757 * @hw: pointer to hardware structure 758 * @index: led number to blink 759 * 760 * Devices that implement the version 2 interface: 761 * X540 762 **/ 763 int ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index) 764 { 765 u32 macc_reg; 766 u32 ledctl_reg; 767 ixgbe_link_speed speed; 768 bool link_up; 769 770 if (index > 3) 771 return -EINVAL; 772 773 /* Link should be up in order for the blink bit in the LED control 774 * register to work. Force link and speed in the MAC if link is down. 775 * This will be reversed when we stop the blinking. 776 */ 777 hw->mac.ops.check_link(hw, &speed, &link_up, false); 778 if (!link_up) { 779 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 780 macc_reg |= IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS; 781 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 782 } 783 /* Set the LED to LINK_UP + BLINK. */ 784 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 785 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 786 ledctl_reg |= IXGBE_LED_BLINK(index); 787 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 788 IXGBE_WRITE_FLUSH(hw); 789 790 return 0; 791 } 792 793 /** 794 * ixgbe_blink_led_stop_X540 - Stop blinking LED based on index. 795 * @hw: pointer to hardware structure 796 * @index: led number to stop blinking 797 * 798 * Devices that implement the version 2 interface: 799 * X540 800 **/ 801 int ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index) 802 { 803 u32 macc_reg; 804 u32 ledctl_reg; 805 806 if (index > 3) 807 return -EINVAL; 808 809 /* Restore the LED to its default value. */ 810 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 811 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 812 ledctl_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index); 813 ledctl_reg &= ~IXGBE_LED_BLINK(index); 814 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 815 816 /* Unforce link and speed in the MAC. */ 817 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 818 macc_reg &= ~(IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS); 819 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 820 IXGBE_WRITE_FLUSH(hw); 821 822 return 0; 823 } 824 static const struct ixgbe_mac_operations mac_ops_X540 = { 825 .init_hw = &ixgbe_init_hw_generic, 826 .reset_hw = &ixgbe_reset_hw_X540, 827 .start_hw = &ixgbe_start_hw_X540, 828 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, 829 .get_media_type = &ixgbe_get_media_type_X540, 830 .enable_rx_dma = &ixgbe_enable_rx_dma_generic, 831 .get_mac_addr = &ixgbe_get_mac_addr_generic, 832 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic, 833 .get_device_caps = &ixgbe_get_device_caps_generic, 834 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic, 835 .stop_adapter = &ixgbe_stop_adapter_generic, 836 .get_bus_info = &ixgbe_get_bus_info_generic, 837 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, 838 .read_analog_reg8 = NULL, 839 .write_analog_reg8 = NULL, 840 .setup_link = &ixgbe_setup_mac_link_X540, 841 .set_rxpba = &ixgbe_set_rxpba_generic, 842 .check_link = &ixgbe_check_mac_link_generic, 843 .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic, 844 .led_on = &ixgbe_led_on_generic, 845 .led_off = &ixgbe_led_off_generic, 846 .init_led_link_act = ixgbe_init_led_link_act_generic, 847 .blink_led_start = &ixgbe_blink_led_start_X540, 848 .blink_led_stop = &ixgbe_blink_led_stop_X540, 849 .set_rar = &ixgbe_set_rar_generic, 850 .clear_rar = &ixgbe_clear_rar_generic, 851 .set_vmdq = &ixgbe_set_vmdq_generic, 852 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, 853 .clear_vmdq = &ixgbe_clear_vmdq_generic, 854 .init_rx_addrs = &ixgbe_init_rx_addrs_generic, 855 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, 856 .enable_mc = &ixgbe_enable_mc_generic, 857 .disable_mc = &ixgbe_disable_mc_generic, 858 .clear_vfta = &ixgbe_clear_vfta_generic, 859 .set_vfta = &ixgbe_set_vfta_generic, 860 .fc_enable = &ixgbe_fc_enable_generic, 861 .setup_fc = ixgbe_setup_fc_generic, 862 .fc_autoneg = ixgbe_fc_autoneg, 863 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic, 864 .init_uta_tables = &ixgbe_init_uta_tables_generic, 865 .setup_sfp = NULL, 866 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, 867 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, 868 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540, 869 .release_swfw_sync = &ixgbe_release_swfw_sync_X540, 870 .init_swfw_sync = &ixgbe_init_swfw_sync_X540, 871 .disable_rx_buff = &ixgbe_disable_rx_buff_generic, 872 .enable_rx_buff = &ixgbe_enable_rx_buff_generic, 873 .get_thermal_sensor_data = NULL, 874 .init_thermal_sensor_thresh = NULL, 875 .prot_autoc_read = &prot_autoc_read_generic, 876 .prot_autoc_write = &prot_autoc_write_generic, 877 .enable_rx = &ixgbe_enable_rx_generic, 878 .disable_rx = &ixgbe_disable_rx_generic, 879 }; 880 881 static const struct ixgbe_eeprom_operations eeprom_ops_X540 = { 882 .init_params = &ixgbe_init_eeprom_params_X540, 883 .read = &ixgbe_read_eerd_X540, 884 .read_buffer = &ixgbe_read_eerd_buffer_X540, 885 .write = &ixgbe_write_eewr_X540, 886 .write_buffer = &ixgbe_write_eewr_buffer_X540, 887 .calc_checksum = &ixgbe_calc_eeprom_checksum_X540, 888 .validate_checksum = &ixgbe_validate_eeprom_checksum_X540, 889 .update_checksum = &ixgbe_update_eeprom_checksum_X540, 890 }; 891 892 static const struct ixgbe_phy_operations phy_ops_X540 = { 893 .identify = &ixgbe_identify_phy_generic, 894 .identify_sfp = &ixgbe_identify_sfp_module_generic, 895 .init = NULL, 896 .reset = NULL, 897 .read_reg = &ixgbe_read_phy_reg_generic, 898 .write_reg = &ixgbe_write_phy_reg_generic, 899 .setup_link = &ixgbe_setup_phy_link_generic, 900 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, 901 .read_i2c_byte = &ixgbe_read_i2c_byte_generic, 902 .write_i2c_byte = &ixgbe_write_i2c_byte_generic, 903 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, 904 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, 905 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, 906 .check_overtemp = &ixgbe_tn_check_overtemp, 907 .set_phy_power = &ixgbe_set_copper_phy_power, 908 }; 909 910 static const u32 ixgbe_mvals_X540[IXGBE_MVALS_IDX_LIMIT] = { 911 IXGBE_MVALS_INIT(X540) 912 }; 913 914 const struct ixgbe_info ixgbe_X540_info = { 915 .mac = ixgbe_mac_X540, 916 .get_invariants = &ixgbe_get_invariants_X540, 917 .mac_ops = &mac_ops_X540, 918 .eeprom_ops = &eeprom_ops_X540, 919 .phy_ops = &phy_ops_X540, 920 .mbx_ops = &mbx_ops_generic, 921 .mvals = ixgbe_mvals_X540, 922 }; 923