1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 8 #include <linux/vmalloc.h> 9 #include <linux/delay.h> 10 11 #include "qla_def.h" 12 #include "qla_gbl.h" 13 14 #include <linux/delay.h> 15 16 #define TIMEOUT_100_MS 100 17 18 static const uint32_t qla8044_reg_tbl[] = { 19 QLA8044_PEG_HALT_STATUS1, 20 QLA8044_PEG_HALT_STATUS2, 21 QLA8044_PEG_ALIVE_COUNTER, 22 QLA8044_CRB_DRV_ACTIVE, 23 QLA8044_CRB_DEV_STATE, 24 QLA8044_CRB_DRV_STATE, 25 QLA8044_CRB_DRV_SCRATCH, 26 QLA8044_CRB_DEV_PART_INFO1, 27 QLA8044_CRB_IDC_VER_MAJOR, 28 QLA8044_FW_VER_MAJOR, 29 QLA8044_FW_VER_MINOR, 30 QLA8044_FW_VER_SUB, 31 QLA8044_CMDPEG_STATE, 32 QLA8044_ASIC_TEMP, 33 }; 34 35 /* 8044 Flash Read/Write functions */ 36 uint32_t 37 qla8044_rd_reg(struct qla_hw_data *ha, ulong addr) 38 { 39 return readl((void __iomem *) (ha->nx_pcibase + addr)); 40 } 41 42 void 43 qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val) 44 { 45 writel(val, (void __iomem *)((ha)->nx_pcibase + addr)); 46 } 47 48 int 49 qla8044_rd_direct(struct scsi_qla_host *vha, 50 const uint32_t crb_reg) 51 { 52 struct qla_hw_data *ha = vha->hw; 53 54 if (crb_reg < CRB_REG_INDEX_MAX) 55 return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]); 56 else 57 return QLA_FUNCTION_FAILED; 58 } 59 60 void 61 qla8044_wr_direct(struct scsi_qla_host *vha, 62 const uint32_t crb_reg, 63 const uint32_t value) 64 { 65 struct qla_hw_data *ha = vha->hw; 66 67 if (crb_reg < CRB_REG_INDEX_MAX) 68 qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value); 69 } 70 71 static int 72 qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr) 73 { 74 uint32_t val; 75 int ret_val = QLA_SUCCESS; 76 struct qla_hw_data *ha = vha->hw; 77 78 qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr); 79 val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum)); 80 81 if (val != addr) { 82 ql_log(ql_log_warn, vha, 0xb087, 83 "%s: Failed to set register window : " 84 "addr written 0x%x, read 0x%x!\n", 85 __func__, addr, val); 86 ret_val = QLA_FUNCTION_FAILED; 87 } 88 return ret_val; 89 } 90 91 static int 92 qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data) 93 { 94 int ret_val = QLA_SUCCESS; 95 struct qla_hw_data *ha = vha->hw; 96 97 ret_val = qla8044_set_win_base(vha, addr); 98 if (!ret_val) 99 *data = qla8044_rd_reg(ha, QLA8044_WILDCARD); 100 else 101 ql_log(ql_log_warn, vha, 0xb088, 102 "%s: failed read of addr 0x%x!\n", __func__, addr); 103 return ret_val; 104 } 105 106 static int 107 qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data) 108 { 109 int ret_val = QLA_SUCCESS; 110 struct qla_hw_data *ha = vha->hw; 111 112 ret_val = qla8044_set_win_base(vha, addr); 113 if (!ret_val) 114 qla8044_wr_reg(ha, QLA8044_WILDCARD, data); 115 else 116 ql_log(ql_log_warn, vha, 0xb089, 117 "%s: failed wrt to addr 0x%x, data 0x%x\n", 118 __func__, addr, data); 119 return ret_val; 120 } 121 122 /* 123 * qla8044_read_write_crb_reg - Read from raddr and write value to waddr. 124 * 125 * @ha : Pointer to adapter structure 126 * @raddr : CRB address to read from 127 * @waddr : CRB address to write to 128 * 129 */ 130 static void 131 qla8044_read_write_crb_reg(struct scsi_qla_host *vha, 132 uint32_t raddr, uint32_t waddr) 133 { 134 uint32_t value; 135 136 qla8044_rd_reg_indirect(vha, raddr, &value); 137 qla8044_wr_reg_indirect(vha, waddr, value); 138 } 139 140 static int 141 qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1, 142 uint32_t mask) 143 { 144 unsigned long timeout; 145 uint32_t temp; 146 147 /* jiffies after 100ms */ 148 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS); 149 do { 150 qla8044_rd_reg_indirect(vha, addr1, &temp); 151 if ((temp & mask) != 0) 152 break; 153 if (time_after_eq(jiffies, timeout)) { 154 ql_log(ql_log_warn, vha, 0xb151, 155 "Error in processing rdmdio entry\n"); 156 return -1; 157 } 158 } while (1); 159 160 return 0; 161 } 162 163 static uint32_t 164 qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha, 165 uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr) 166 { 167 uint32_t temp; 168 int ret = 0; 169 170 ret = qla8044_poll_wait_for_ready(vha, addr1, mask); 171 if (ret == -1) 172 return -1; 173 174 temp = (0x40000000 | addr); 175 qla8044_wr_reg_indirect(vha, addr1, temp); 176 177 ret = qla8044_poll_wait_for_ready(vha, addr1, mask); 178 if (ret == -1) 179 return 0; 180 181 qla8044_rd_reg_indirect(vha, addr3, &ret); 182 183 return ret; 184 } 185 186 187 static int 188 qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha, 189 uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask) 190 { 191 unsigned long timeout; 192 uint32_t temp; 193 194 /* jiffies after 100 msecs */ 195 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS); 196 do { 197 temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2); 198 if ((temp & 0x1) != 1) 199 break; 200 if (time_after_eq(jiffies, timeout)) { 201 ql_log(ql_log_warn, vha, 0xb152, 202 "Error in processing mdiobus idle\n"); 203 return -1; 204 } 205 } while (1); 206 207 return 0; 208 } 209 210 static int 211 qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1, 212 uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value) 213 { 214 int ret = 0; 215 216 ret = qla8044_poll_wait_for_ready(vha, addr1, mask); 217 if (ret == -1) 218 return -1; 219 220 qla8044_wr_reg_indirect(vha, addr3, value); 221 qla8044_wr_reg_indirect(vha, addr1, addr); 222 223 ret = qla8044_poll_wait_for_ready(vha, addr1, mask); 224 if (ret == -1) 225 return -1; 226 227 return 0; 228 } 229 /* 230 * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask, 231 * Shift Left,Right/OR/XOR with values RMW header and write value to waddr. 232 * 233 * @vha : Pointer to adapter structure 234 * @raddr : CRB address to read from 235 * @waddr : CRB address to write to 236 * @p_rmw_hdr : header with shift/or/xor values. 237 * 238 */ 239 static void 240 qla8044_rmw_crb_reg(struct scsi_qla_host *vha, 241 uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr) 242 { 243 uint32_t value; 244 245 if (p_rmw_hdr->index_a) 246 value = vha->reset_tmplt.array[p_rmw_hdr->index_a]; 247 else 248 qla8044_rd_reg_indirect(vha, raddr, &value); 249 value &= p_rmw_hdr->test_mask; 250 value <<= p_rmw_hdr->shl; 251 value >>= p_rmw_hdr->shr; 252 value |= p_rmw_hdr->or_value; 253 value ^= p_rmw_hdr->xor_value; 254 qla8044_wr_reg_indirect(vha, waddr, value); 255 return; 256 } 257 258 static inline void 259 qla8044_set_qsnt_ready(struct scsi_qla_host *vha) 260 { 261 uint32_t qsnt_state; 262 struct qla_hw_data *ha = vha->hw; 263 264 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 265 qsnt_state |= (1 << ha->portnum); 266 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); 267 ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n", 268 __func__, vha->host_no, qsnt_state); 269 } 270 271 void 272 qla8044_clear_qsnt_ready(struct scsi_qla_host *vha) 273 { 274 uint32_t qsnt_state; 275 struct qla_hw_data *ha = vha->hw; 276 277 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 278 qsnt_state &= ~(1 << ha->portnum); 279 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); 280 ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n", 281 __func__, vha->host_no, qsnt_state); 282 } 283 284 /** 285 * 286 * qla8044_lock_recovery - Recovers the idc_lock. 287 * @ha : Pointer to adapter structure 288 * 289 * Lock Recovery Register 290 * 5-2 Lock recovery owner: Function ID of driver doing lock recovery, 291 * valid if bits 1..0 are set by driver doing lock recovery. 292 * 1-0 1 - Driver intends to force unlock the IDC lock. 293 * 2 - Driver is moving forward to unlock the IDC lock. Driver clears 294 * this field after force unlocking the IDC lock. 295 * 296 * Lock Recovery process 297 * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is 298 * greater than 0, then wait for the other driver to unlock otherwise 299 * move to the next step. 300 * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY 301 * register bits 1..0 and also set the function# in bits 5..2. 302 * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms. 303 * Wait for the other driver to perform lock recovery if the function 304 * number in bits 5..2 has changed, otherwise move to the next step. 305 * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0 306 * leaving your function# in bits 5..2. 307 * e. Force unlock using the DRIVER_UNLOCK register and immediately clear 308 * the IDC_LOCK_RECOVERY bits 5..0 by writing 0. 309 **/ 310 static int 311 qla8044_lock_recovery(struct scsi_qla_host *vha) 312 { 313 uint32_t lock = 0, lockid; 314 struct qla_hw_data *ha = vha->hw; 315 316 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); 317 318 /* Check for other Recovery in progress, go wait */ 319 if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0) 320 return QLA_FUNCTION_FAILED; 321 322 /* Intent to Recover */ 323 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 324 (ha->portnum << 325 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER); 326 msleep(200); 327 328 /* Check Intent to Recover is advertised */ 329 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); 330 if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum << 331 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS)) 332 return QLA_FUNCTION_FAILED; 333 334 ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n" 335 , __func__, ha->portnum); 336 337 /* Proceed to Recover */ 338 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 339 (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | 340 PROCEED_TO_RECOVER); 341 342 /* Force Unlock() */ 343 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF); 344 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); 345 346 /* Clear bits 0-5 in IDC_RECOVERY register*/ 347 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0); 348 349 /* Get lock() */ 350 lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); 351 if (lock) { 352 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 353 lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum; 354 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid); 355 return QLA_SUCCESS; 356 } else 357 return QLA_FUNCTION_FAILED; 358 } 359 360 int 361 qla8044_idc_lock(struct qla_hw_data *ha) 362 { 363 uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0; 364 uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0; 365 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 366 367 while (status == 0) { 368 /* acquire semaphore5 from PCI HW block */ 369 status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); 370 371 if (status) { 372 /* Increment Counter (8-31) and update func_num (0-7) on 373 * getting a successful lock */ 374 lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 375 lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum; 376 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id); 377 break; 378 } 379 380 if (timeout == 0) 381 first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 382 383 if (++timeout >= 384 (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) { 385 tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 386 func_num = tmo_owner & 0xFF; 387 lock_cnt = tmo_owner >> 8; 388 ql_log(ql_log_warn, vha, 0xb114, 389 "%s: Lock by func %d failed after 2s, lock held " 390 "by func %d, lock count %d, first_owner %d\n", 391 __func__, ha->portnum, func_num, lock_cnt, 392 (first_owner & 0xFF)); 393 if (first_owner != tmo_owner) { 394 /* Some other driver got lock, 395 * OR same driver got lock again (counter 396 * value changed), when we were waiting for 397 * lock. Retry for another 2 sec */ 398 ql_dbg(ql_dbg_p3p, vha, 0xb115, 399 "%s: %d: IDC lock failed\n", 400 __func__, ha->portnum); 401 timeout = 0; 402 } else { 403 /* Same driver holding lock > 2sec. 404 * Force Recovery */ 405 if (qla8044_lock_recovery(vha) == QLA_SUCCESS) { 406 /* Recovered and got lock */ 407 ret_val = QLA_SUCCESS; 408 ql_dbg(ql_dbg_p3p, vha, 0xb116, 409 "%s:IDC lock Recovery by %d" 410 "successful...\n", __func__, 411 ha->portnum); 412 } 413 /* Recovery Failed, some other function 414 * has the lock, wait for 2secs 415 * and retry 416 */ 417 ql_dbg(ql_dbg_p3p, vha, 0xb08a, 418 "%s: IDC lock Recovery by %d " 419 "failed, Retrying timeout\n", __func__, 420 ha->portnum); 421 timeout = 0; 422 } 423 } 424 msleep(QLA8044_DRV_LOCK_MSLEEP); 425 } 426 return ret_val; 427 } 428 429 void 430 qla8044_idc_unlock(struct qla_hw_data *ha) 431 { 432 int id; 433 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 434 435 id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 436 437 if ((id & 0xFF) != ha->portnum) { 438 ql_log(ql_log_warn, vha, 0xb118, 439 "%s: IDC Unlock by %d failed, lock owner is %d!\n", 440 __func__, ha->portnum, (id & 0xFF)); 441 return; 442 } 443 444 /* Keep lock counter value, update the ha->func_num to 0xFF */ 445 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF)); 446 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); 447 } 448 449 /* 8044 Flash Lock/Unlock functions */ 450 static int 451 qla8044_flash_lock(scsi_qla_host_t *vha) 452 { 453 int lock_owner; 454 int timeout = 0; 455 uint32_t lock_status = 0; 456 int ret_val = QLA_SUCCESS; 457 struct qla_hw_data *ha = vha->hw; 458 459 while (lock_status == 0) { 460 lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK); 461 if (lock_status) 462 break; 463 464 if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) { 465 lock_owner = qla8044_rd_reg(ha, 466 QLA8044_FLASH_LOCK_ID); 467 ql_log(ql_log_warn, vha, 0xb113, 468 "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d", 469 __func__, ha->portnum, lock_owner); 470 ret_val = QLA_FUNCTION_FAILED; 471 break; 472 } 473 msleep(20); 474 } 475 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum); 476 return ret_val; 477 } 478 479 static void 480 qla8044_flash_unlock(scsi_qla_host_t *vha) 481 { 482 struct qla_hw_data *ha = vha->hw; 483 484 /* Reading FLASH_UNLOCK register unlocks the Flash */ 485 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF); 486 qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK); 487 } 488 489 490 static 491 void qla8044_flash_lock_recovery(struct scsi_qla_host *vha) 492 { 493 494 if (qla8044_flash_lock(vha)) { 495 /* Someone else is holding the lock. */ 496 ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n"); 497 } 498 499 /* 500 * Either we got the lock, or someone 501 * else died while holding it. 502 * In either case, unlock. 503 */ 504 qla8044_flash_unlock(vha); 505 } 506 507 /* 508 * Address and length are byte address 509 */ 510 static int 511 qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data, 512 uint32_t flash_addr, int u32_word_count) 513 { 514 int i, ret_val = QLA_SUCCESS; 515 uint32_t u32_word; 516 517 if (qla8044_flash_lock(vha) != QLA_SUCCESS) { 518 ret_val = QLA_FUNCTION_FAILED; 519 goto exit_lock_error; 520 } 521 522 if (flash_addr & 0x03) { 523 ql_log(ql_log_warn, vha, 0xb117, 524 "%s: Illegal addr = 0x%x\n", __func__, flash_addr); 525 ret_val = QLA_FUNCTION_FAILED; 526 goto exit_flash_read; 527 } 528 529 for (i = 0; i < u32_word_count; i++) { 530 if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW, 531 (flash_addr & 0xFFFF0000))) { 532 ql_log(ql_log_warn, vha, 0xb119, 533 "%s: failed to write addr 0x%x to " 534 "FLASH_DIRECT_WINDOW\n! ", 535 __func__, flash_addr); 536 ret_val = QLA_FUNCTION_FAILED; 537 goto exit_flash_read; 538 } 539 540 ret_val = qla8044_rd_reg_indirect(vha, 541 QLA8044_FLASH_DIRECT_DATA(flash_addr), 542 &u32_word); 543 if (ret_val != QLA_SUCCESS) { 544 ql_log(ql_log_warn, vha, 0xb08c, 545 "%s: failed to read addr 0x%x!\n", 546 __func__, flash_addr); 547 goto exit_flash_read; 548 } 549 550 *(uint32_t *)p_data = u32_word; 551 p_data = p_data + 4; 552 flash_addr = flash_addr + 4; 553 } 554 555 exit_flash_read: 556 qla8044_flash_unlock(vha); 557 558 exit_lock_error: 559 return ret_val; 560 } 561 562 /* 563 * Address and length are byte address 564 */ 565 uint8_t * 566 qla8044_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 567 uint32_t offset, uint32_t length) 568 { 569 scsi_block_requests(vha->host); 570 if (qla8044_read_flash_data(vha, (uint8_t *)buf, offset, length / 4) 571 != QLA_SUCCESS) { 572 ql_log(ql_log_warn, vha, 0xb08d, 573 "%s: Failed to read from flash\n", 574 __func__); 575 } 576 scsi_unblock_requests(vha->host); 577 return buf; 578 } 579 580 static inline int 581 qla8044_need_reset(struct scsi_qla_host *vha) 582 { 583 uint32_t drv_state, drv_active; 584 int rval; 585 struct qla_hw_data *ha = vha->hw; 586 587 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 588 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 589 590 rval = drv_state & (1 << ha->portnum); 591 592 if (ha->flags.eeh_busy && drv_active) 593 rval = 1; 594 return rval; 595 } 596 597 /* 598 * qla8044_write_list - Write the value (p_entry->arg2) to address specified 599 * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between 600 * entries. 601 * 602 * @vha : Pointer to adapter structure 603 * @p_hdr : reset_entry header for WRITE_LIST opcode. 604 * 605 */ 606 static void 607 qla8044_write_list(struct scsi_qla_host *vha, 608 struct qla8044_reset_entry_hdr *p_hdr) 609 { 610 struct qla8044_entry *p_entry; 611 uint32_t i; 612 613 p_entry = (struct qla8044_entry *)((char *)p_hdr + 614 sizeof(struct qla8044_reset_entry_hdr)); 615 616 for (i = 0; i < p_hdr->count; i++, p_entry++) { 617 qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2); 618 if (p_hdr->delay) 619 udelay((uint32_t)(p_hdr->delay)); 620 } 621 } 622 623 /* 624 * qla8044_read_write_list - Read from address specified by p_entry->arg1, 625 * write value read to address specified by p_entry->arg2, for all entries in 626 * header with delay of p_hdr->delay between entries. 627 * 628 * @vha : Pointer to adapter structure 629 * @p_hdr : reset_entry header for READ_WRITE_LIST opcode. 630 * 631 */ 632 static void 633 qla8044_read_write_list(struct scsi_qla_host *vha, 634 struct qla8044_reset_entry_hdr *p_hdr) 635 { 636 struct qla8044_entry *p_entry; 637 uint32_t i; 638 639 p_entry = (struct qla8044_entry *)((char *)p_hdr + 640 sizeof(struct qla8044_reset_entry_hdr)); 641 642 for (i = 0; i < p_hdr->count; i++, p_entry++) { 643 qla8044_read_write_crb_reg(vha, p_entry->arg1, 644 p_entry->arg2); 645 if (p_hdr->delay) 646 udelay((uint32_t)(p_hdr->delay)); 647 } 648 } 649 650 /* 651 * qla8044_poll_reg - Poll the given CRB addr for duration msecs till 652 * value read ANDed with test_mask is equal to test_result. 653 * 654 * @ha : Pointer to adapter structure 655 * @addr : CRB register address 656 * @duration : Poll for total of "duration" msecs 657 * @test_mask : Mask value read with "test_mask" 658 * @test_result : Compare (value&test_mask) with test_result. 659 * 660 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 661 */ 662 static int 663 qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr, 664 int duration, uint32_t test_mask, uint32_t test_result) 665 { 666 uint32_t value; 667 int timeout_error; 668 uint8_t retries; 669 int ret_val = QLA_SUCCESS; 670 671 ret_val = qla8044_rd_reg_indirect(vha, addr, &value); 672 if (ret_val == QLA_FUNCTION_FAILED) { 673 timeout_error = 1; 674 goto exit_poll_reg; 675 } 676 677 /* poll every 1/10 of the total duration */ 678 retries = duration/10; 679 680 do { 681 if ((value & test_mask) != test_result) { 682 timeout_error = 1; 683 msleep(duration/10); 684 ret_val = qla8044_rd_reg_indirect(vha, addr, &value); 685 if (ret_val == QLA_FUNCTION_FAILED) { 686 timeout_error = 1; 687 goto exit_poll_reg; 688 } 689 } else { 690 timeout_error = 0; 691 break; 692 } 693 } while (retries--); 694 695 exit_poll_reg: 696 if (timeout_error) { 697 vha->reset_tmplt.seq_error++; 698 ql_log(ql_log_fatal, vha, 0xb090, 699 "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n", 700 __func__, value, test_mask, test_result); 701 } 702 703 return timeout_error; 704 } 705 706 /* 707 * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB 708 * register specified by p_entry->arg1 and compare (value AND test_mask) with 709 * test_result to validate it. Wait for p_hdr->delay between processing entries. 710 * 711 * @ha : Pointer to adapter structure 712 * @p_hdr : reset_entry header for POLL_LIST opcode. 713 * 714 */ 715 static void 716 qla8044_poll_list(struct scsi_qla_host *vha, 717 struct qla8044_reset_entry_hdr *p_hdr) 718 { 719 long delay; 720 struct qla8044_entry *p_entry; 721 struct qla8044_poll *p_poll; 722 uint32_t i; 723 uint32_t value; 724 725 p_poll = (struct qla8044_poll *) 726 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); 727 728 /* Entries start after 8 byte qla8044_poll, poll header contains 729 * the test_mask, test_value. 730 */ 731 p_entry = (struct qla8044_entry *)((char *)p_poll + 732 sizeof(struct qla8044_poll)); 733 734 delay = (long)p_hdr->delay; 735 736 if (!delay) { 737 for (i = 0; i < p_hdr->count; i++, p_entry++) 738 qla8044_poll_reg(vha, p_entry->arg1, 739 delay, p_poll->test_mask, p_poll->test_value); 740 } else { 741 for (i = 0; i < p_hdr->count; i++, p_entry++) { 742 if (delay) { 743 if (qla8044_poll_reg(vha, 744 p_entry->arg1, delay, 745 p_poll->test_mask, 746 p_poll->test_value)) { 747 /*If 748 * (data_read&test_mask != test_value) 749 * read TIMEOUT_ADDR (arg1) and 750 * ADDR (arg2) registers 751 */ 752 qla8044_rd_reg_indirect(vha, 753 p_entry->arg1, &value); 754 qla8044_rd_reg_indirect(vha, 755 p_entry->arg2, &value); 756 } 757 } 758 } 759 } 760 } 761 762 /* 763 * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr, 764 * read ar_addr, if (value& test_mask != test_mask) re-read till timeout 765 * expires. 766 * 767 * @vha : Pointer to adapter structure 768 * @p_hdr : reset entry header for POLL_WRITE_LIST opcode. 769 * 770 */ 771 static void 772 qla8044_poll_write_list(struct scsi_qla_host *vha, 773 struct qla8044_reset_entry_hdr *p_hdr) 774 { 775 long delay; 776 struct qla8044_quad_entry *p_entry; 777 struct qla8044_poll *p_poll; 778 uint32_t i; 779 780 p_poll = (struct qla8044_poll *)((char *)p_hdr + 781 sizeof(struct qla8044_reset_entry_hdr)); 782 783 p_entry = (struct qla8044_quad_entry *)((char *)p_poll + 784 sizeof(struct qla8044_poll)); 785 786 delay = (long)p_hdr->delay; 787 788 for (i = 0; i < p_hdr->count; i++, p_entry++) { 789 qla8044_wr_reg_indirect(vha, 790 p_entry->dr_addr, p_entry->dr_value); 791 qla8044_wr_reg_indirect(vha, 792 p_entry->ar_addr, p_entry->ar_value); 793 if (delay) { 794 if (qla8044_poll_reg(vha, 795 p_entry->ar_addr, delay, 796 p_poll->test_mask, 797 p_poll->test_value)) { 798 ql_dbg(ql_dbg_p3p, vha, 0xb091, 799 "%s: Timeout Error: poll list, ", 800 __func__); 801 ql_dbg(ql_dbg_p3p, vha, 0xb092, 802 "item_num %d, entry_num %d\n", i, 803 vha->reset_tmplt.seq_index); 804 } 805 } 806 } 807 } 808 809 /* 810 * qla8044_read_modify_write - Read value from p_entry->arg1, modify the 811 * value, write value to p_entry->arg2. Process entries with p_hdr->delay 812 * between entries. 813 * 814 * @vha : Pointer to adapter structure 815 * @p_hdr : header with shift/or/xor values. 816 * 817 */ 818 static void 819 qla8044_read_modify_write(struct scsi_qla_host *vha, 820 struct qla8044_reset_entry_hdr *p_hdr) 821 { 822 struct qla8044_entry *p_entry; 823 struct qla8044_rmw *p_rmw_hdr; 824 uint32_t i; 825 826 p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr + 827 sizeof(struct qla8044_reset_entry_hdr)); 828 829 p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr + 830 sizeof(struct qla8044_rmw)); 831 832 for (i = 0; i < p_hdr->count; i++, p_entry++) { 833 qla8044_rmw_crb_reg(vha, p_entry->arg1, 834 p_entry->arg2, p_rmw_hdr); 835 if (p_hdr->delay) 836 udelay((uint32_t)(p_hdr->delay)); 837 } 838 } 839 840 /* 841 * qla8044_pause - Wait for p_hdr->delay msecs, called between processing 842 * two entries of a sequence. 843 * 844 * @vha : Pointer to adapter structure 845 * @p_hdr : Common reset entry header. 846 * 847 */ 848 static 849 void qla8044_pause(struct scsi_qla_host *vha, 850 struct qla8044_reset_entry_hdr *p_hdr) 851 { 852 if (p_hdr->delay) 853 mdelay((uint32_t)((long)p_hdr->delay)); 854 } 855 856 /* 857 * qla8044_template_end - Indicates end of reset sequence processing. 858 * 859 * @vha : Pointer to adapter structure 860 * @p_hdr : Common reset entry header. 861 * 862 */ 863 static void 864 qla8044_template_end(struct scsi_qla_host *vha, 865 struct qla8044_reset_entry_hdr *p_hdr) 866 { 867 vha->reset_tmplt.template_end = 1; 868 869 if (vha->reset_tmplt.seq_error == 0) { 870 ql_dbg(ql_dbg_p3p, vha, 0xb093, 871 "%s: Reset sequence completed SUCCESSFULLY.\n", __func__); 872 } else { 873 ql_log(ql_log_fatal, vha, 0xb094, 874 "%s: Reset sequence completed with some timeout " 875 "errors.\n", __func__); 876 } 877 } 878 879 /* 880 * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr, 881 * if (value & test_mask != test_value) re-read till timeout value expires, 882 * read dr_addr register and assign to reset_tmplt.array. 883 * 884 * @vha : Pointer to adapter structure 885 * @p_hdr : Common reset entry header. 886 * 887 */ 888 static void 889 qla8044_poll_read_list(struct scsi_qla_host *vha, 890 struct qla8044_reset_entry_hdr *p_hdr) 891 { 892 long delay; 893 int index; 894 struct qla8044_quad_entry *p_entry; 895 struct qla8044_poll *p_poll; 896 uint32_t i; 897 uint32_t value; 898 899 p_poll = (struct qla8044_poll *) 900 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); 901 902 p_entry = (struct qla8044_quad_entry *) 903 ((char *)p_poll + sizeof(struct qla8044_poll)); 904 905 delay = (long)p_hdr->delay; 906 907 for (i = 0; i < p_hdr->count; i++, p_entry++) { 908 qla8044_wr_reg_indirect(vha, p_entry->ar_addr, 909 p_entry->ar_value); 910 if (delay) { 911 if (qla8044_poll_reg(vha, p_entry->ar_addr, delay, 912 p_poll->test_mask, p_poll->test_value)) { 913 ql_dbg(ql_dbg_p3p, vha, 0xb095, 914 "%s: Timeout Error: poll " 915 "list, ", __func__); 916 ql_dbg(ql_dbg_p3p, vha, 0xb096, 917 "Item_num %d, " 918 "entry_num %d\n", i, 919 vha->reset_tmplt.seq_index); 920 } else { 921 index = vha->reset_tmplt.array_index; 922 qla8044_rd_reg_indirect(vha, 923 p_entry->dr_addr, &value); 924 vha->reset_tmplt.array[index++] = value; 925 if (index == QLA8044_MAX_RESET_SEQ_ENTRIES) 926 vha->reset_tmplt.array_index = 1; 927 } 928 } 929 } 930 } 931 932 /* 933 * qla8031_process_reset_template - Process all entries in reset template 934 * till entry with SEQ_END opcode, which indicates end of the reset template 935 * processing. Each entry has a Reset Entry header, entry opcode/command, with 936 * size of the entry, number of entries in sub-sequence and delay in microsecs 937 * or timeout in millisecs. 938 * 939 * @ha : Pointer to adapter structure 940 * @p_buff : Common reset entry header. 941 * 942 */ 943 static void 944 qla8044_process_reset_template(struct scsi_qla_host *vha, 945 char *p_buff) 946 { 947 int index, entries; 948 struct qla8044_reset_entry_hdr *p_hdr; 949 char *p_entry = p_buff; 950 951 vha->reset_tmplt.seq_end = 0; 952 vha->reset_tmplt.template_end = 0; 953 entries = vha->reset_tmplt.hdr->entries; 954 index = vha->reset_tmplt.seq_index; 955 956 for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) { 957 p_hdr = (struct qla8044_reset_entry_hdr *)p_entry; 958 switch (p_hdr->cmd) { 959 case OPCODE_NOP: 960 break; 961 case OPCODE_WRITE_LIST: 962 qla8044_write_list(vha, p_hdr); 963 break; 964 case OPCODE_READ_WRITE_LIST: 965 qla8044_read_write_list(vha, p_hdr); 966 break; 967 case OPCODE_POLL_LIST: 968 qla8044_poll_list(vha, p_hdr); 969 break; 970 case OPCODE_POLL_WRITE_LIST: 971 qla8044_poll_write_list(vha, p_hdr); 972 break; 973 case OPCODE_READ_MODIFY_WRITE: 974 qla8044_read_modify_write(vha, p_hdr); 975 break; 976 case OPCODE_SEQ_PAUSE: 977 qla8044_pause(vha, p_hdr); 978 break; 979 case OPCODE_SEQ_END: 980 vha->reset_tmplt.seq_end = 1; 981 break; 982 case OPCODE_TMPL_END: 983 qla8044_template_end(vha, p_hdr); 984 break; 985 case OPCODE_POLL_READ_LIST: 986 qla8044_poll_read_list(vha, p_hdr); 987 break; 988 default: 989 ql_log(ql_log_fatal, vha, 0xb097, 990 "%s: Unknown command ==> 0x%04x on " 991 "entry = %d\n", __func__, p_hdr->cmd, index); 992 break; 993 } 994 /* 995 *Set pointer to next entry in the sequence. 996 */ 997 p_entry += p_hdr->size; 998 } 999 vha->reset_tmplt.seq_index = index; 1000 } 1001 1002 static void 1003 qla8044_process_init_seq(struct scsi_qla_host *vha) 1004 { 1005 qla8044_process_reset_template(vha, 1006 vha->reset_tmplt.init_offset); 1007 if (vha->reset_tmplt.seq_end != 1) 1008 ql_log(ql_log_fatal, vha, 0xb098, 1009 "%s: Abrupt INIT Sub-Sequence end.\n", 1010 __func__); 1011 } 1012 1013 static void 1014 qla8044_process_stop_seq(struct scsi_qla_host *vha) 1015 { 1016 vha->reset_tmplt.seq_index = 0; 1017 qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset); 1018 if (vha->reset_tmplt.seq_end != 1) 1019 ql_log(ql_log_fatal, vha, 0xb099, 1020 "%s: Abrupt STOP Sub-Sequence end.\n", __func__); 1021 } 1022 1023 static void 1024 qla8044_process_start_seq(struct scsi_qla_host *vha) 1025 { 1026 qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset); 1027 if (vha->reset_tmplt.template_end != 1) 1028 ql_log(ql_log_fatal, vha, 0xb09a, 1029 "%s: Abrupt START Sub-Sequence end.\n", 1030 __func__); 1031 } 1032 1033 static int 1034 qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha, 1035 uint32_t flash_addr, uint8_t *p_data, int u32_word_count) 1036 { 1037 uint32_t i; 1038 uint32_t u32_word; 1039 uint32_t flash_offset; 1040 uint32_t addr = flash_addr; 1041 int ret_val = QLA_SUCCESS; 1042 1043 flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1); 1044 1045 if (addr & 0x3) { 1046 ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n", 1047 __func__, addr); 1048 ret_val = QLA_FUNCTION_FAILED; 1049 goto exit_lockless_read; 1050 } 1051 1052 ret_val = qla8044_wr_reg_indirect(vha, 1053 QLA8044_FLASH_DIRECT_WINDOW, (addr)); 1054 1055 if (ret_val != QLA_SUCCESS) { 1056 ql_log(ql_log_fatal, vha, 0xb09c, 1057 "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n", 1058 __func__, addr); 1059 goto exit_lockless_read; 1060 } 1061 1062 /* Check if data is spread across multiple sectors */ 1063 if ((flash_offset + (u32_word_count * sizeof(uint32_t))) > 1064 (QLA8044_FLASH_SECTOR_SIZE - 1)) { 1065 /* Multi sector read */ 1066 for (i = 0; i < u32_word_count; i++) { 1067 ret_val = qla8044_rd_reg_indirect(vha, 1068 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); 1069 if (ret_val != QLA_SUCCESS) { 1070 ql_log(ql_log_fatal, vha, 0xb09d, 1071 "%s: failed to read addr 0x%x!\n", 1072 __func__, addr); 1073 goto exit_lockless_read; 1074 } 1075 *(uint32_t *)p_data = u32_word; 1076 p_data = p_data + 4; 1077 addr = addr + 4; 1078 flash_offset = flash_offset + 4; 1079 if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) { 1080 /* This write is needed once for each sector */ 1081 ret_val = qla8044_wr_reg_indirect(vha, 1082 QLA8044_FLASH_DIRECT_WINDOW, (addr)); 1083 if (ret_val != QLA_SUCCESS) { 1084 ql_log(ql_log_fatal, vha, 0xb09f, 1085 "%s: failed to write addr " 1086 "0x%x to FLASH_DIRECT_WINDOW!\n", 1087 __func__, addr); 1088 goto exit_lockless_read; 1089 } 1090 flash_offset = 0; 1091 } 1092 } 1093 } else { 1094 /* Single sector read */ 1095 for (i = 0; i < u32_word_count; i++) { 1096 ret_val = qla8044_rd_reg_indirect(vha, 1097 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); 1098 if (ret_val != QLA_SUCCESS) { 1099 ql_log(ql_log_fatal, vha, 0xb0a0, 1100 "%s: failed to read addr 0x%x!\n", 1101 __func__, addr); 1102 goto exit_lockless_read; 1103 } 1104 *(uint32_t *)p_data = u32_word; 1105 p_data = p_data + 4; 1106 addr = addr + 4; 1107 } 1108 } 1109 1110 exit_lockless_read: 1111 return ret_val; 1112 } 1113 1114 /* 1115 * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory 1116 * 1117 * @vha : Pointer to adapter structure 1118 * addr : Flash address to write to 1119 * data : Data to be written 1120 * count : word_count to be written 1121 * 1122 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1123 */ 1124 static int 1125 qla8044_ms_mem_write_128b(struct scsi_qla_host *vha, 1126 uint64_t addr, uint32_t *data, uint32_t count) 1127 { 1128 int i, j, ret_val = QLA_SUCCESS; 1129 uint32_t agt_ctrl; 1130 unsigned long flags; 1131 struct qla_hw_data *ha = vha->hw; 1132 1133 /* Only 128-bit aligned access */ 1134 if (addr & 0xF) { 1135 ret_val = QLA_FUNCTION_FAILED; 1136 goto exit_ms_mem_write; 1137 } 1138 write_lock_irqsave(&ha->hw_lock, flags); 1139 1140 /* Write address */ 1141 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0); 1142 if (ret_val == QLA_FUNCTION_FAILED) { 1143 ql_log(ql_log_fatal, vha, 0xb0a1, 1144 "%s: write to AGT_ADDR_HI failed!\n", __func__); 1145 goto exit_ms_mem_write_unlock; 1146 } 1147 1148 for (i = 0; i < count; i++, addr += 16) { 1149 if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET, 1150 QLA8044_ADDR_QDR_NET_MAX)) || 1151 (addr_in_range(addr, QLA8044_ADDR_DDR_NET, 1152 QLA8044_ADDR_DDR_NET_MAX)))) { 1153 ret_val = QLA_FUNCTION_FAILED; 1154 goto exit_ms_mem_write_unlock; 1155 } 1156 1157 ret_val = qla8044_wr_reg_indirect(vha, 1158 MD_MIU_TEST_AGT_ADDR_LO, addr); 1159 1160 /* Write data */ 1161 ret_val += qla8044_wr_reg_indirect(vha, 1162 MD_MIU_TEST_AGT_WRDATA_LO, *data++); 1163 ret_val += qla8044_wr_reg_indirect(vha, 1164 MD_MIU_TEST_AGT_WRDATA_HI, *data++); 1165 ret_val += qla8044_wr_reg_indirect(vha, 1166 MD_MIU_TEST_AGT_WRDATA_ULO, *data++); 1167 ret_val += qla8044_wr_reg_indirect(vha, 1168 MD_MIU_TEST_AGT_WRDATA_UHI, *data++); 1169 if (ret_val == QLA_FUNCTION_FAILED) { 1170 ql_log(ql_log_fatal, vha, 0xb0a2, 1171 "%s: write to AGT_WRDATA failed!\n", 1172 __func__); 1173 goto exit_ms_mem_write_unlock; 1174 } 1175 1176 /* Check write status */ 1177 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 1178 MIU_TA_CTL_WRITE_ENABLE); 1179 ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 1180 MIU_TA_CTL_WRITE_START); 1181 if (ret_val == QLA_FUNCTION_FAILED) { 1182 ql_log(ql_log_fatal, vha, 0xb0a3, 1183 "%s: write to AGT_CTRL failed!\n", __func__); 1184 goto exit_ms_mem_write_unlock; 1185 } 1186 1187 for (j = 0; j < MAX_CTL_CHECK; j++) { 1188 ret_val = qla8044_rd_reg_indirect(vha, 1189 MD_MIU_TEST_AGT_CTRL, &agt_ctrl); 1190 if (ret_val == QLA_FUNCTION_FAILED) { 1191 ql_log(ql_log_fatal, vha, 0xb0a4, 1192 "%s: failed to read " 1193 "MD_MIU_TEST_AGT_CTRL!\n", __func__); 1194 goto exit_ms_mem_write_unlock; 1195 } 1196 if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0) 1197 break; 1198 } 1199 1200 /* Status check failed */ 1201 if (j >= MAX_CTL_CHECK) { 1202 ql_log(ql_log_fatal, vha, 0xb0a5, 1203 "%s: MS memory write failed!\n", 1204 __func__); 1205 ret_val = QLA_FUNCTION_FAILED; 1206 goto exit_ms_mem_write_unlock; 1207 } 1208 } 1209 1210 exit_ms_mem_write_unlock: 1211 write_unlock_irqrestore(&ha->hw_lock, flags); 1212 1213 exit_ms_mem_write: 1214 return ret_val; 1215 } 1216 1217 static int 1218 qla8044_copy_bootloader(struct scsi_qla_host *vha) 1219 { 1220 uint8_t *p_cache; 1221 uint32_t src, count, size; 1222 uint64_t dest; 1223 int ret_val = QLA_SUCCESS; 1224 struct qla_hw_data *ha = vha->hw; 1225 1226 src = QLA8044_BOOTLOADER_FLASH_ADDR; 1227 dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR); 1228 size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE); 1229 1230 /* 128 bit alignment check */ 1231 if (size & 0xF) 1232 size = (size + 16) & ~0xF; 1233 1234 /* 16 byte count */ 1235 count = size/16; 1236 1237 p_cache = vmalloc(size); 1238 if (p_cache == NULL) { 1239 ql_log(ql_log_fatal, vha, 0xb0a6, 1240 "%s: Failed to allocate memory for " 1241 "boot loader cache\n", __func__); 1242 ret_val = QLA_FUNCTION_FAILED; 1243 goto exit_copy_bootloader; 1244 } 1245 1246 ret_val = qla8044_lockless_flash_read_u32(vha, src, 1247 p_cache, size/sizeof(uint32_t)); 1248 if (ret_val == QLA_FUNCTION_FAILED) { 1249 ql_log(ql_log_fatal, vha, 0xb0a7, 1250 "%s: Error reading F/W from flash!!!\n", __func__); 1251 goto exit_copy_error; 1252 } 1253 ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n", 1254 __func__); 1255 1256 /* 128 bit/16 byte write to MS memory */ 1257 ret_val = qla8044_ms_mem_write_128b(vha, dest, 1258 (uint32_t *)p_cache, count); 1259 if (ret_val == QLA_FUNCTION_FAILED) { 1260 ql_log(ql_log_fatal, vha, 0xb0a9, 1261 "%s: Error writing F/W to MS !!!\n", __func__); 1262 goto exit_copy_error; 1263 } 1264 ql_dbg(ql_dbg_p3p, vha, 0xb0aa, 1265 "%s: Wrote F/W (size %d) to MS !!!\n", 1266 __func__, size); 1267 1268 exit_copy_error: 1269 vfree(p_cache); 1270 1271 exit_copy_bootloader: 1272 return ret_val; 1273 } 1274 1275 static int 1276 qla8044_restart(struct scsi_qla_host *vha) 1277 { 1278 int ret_val = QLA_SUCCESS; 1279 struct qla_hw_data *ha = vha->hw; 1280 1281 qla8044_process_stop_seq(vha); 1282 1283 /* Collect minidump */ 1284 if (ql2xmdenable) 1285 qla8044_get_minidump(vha); 1286 else 1287 ql_log(ql_log_fatal, vha, 0xb14c, 1288 "Minidump disabled.\n"); 1289 1290 qla8044_process_init_seq(vha); 1291 1292 if (qla8044_copy_bootloader(vha)) { 1293 ql_log(ql_log_fatal, vha, 0xb0ab, 1294 "%s: Copy bootloader, firmware restart failed!\n", 1295 __func__); 1296 ret_val = QLA_FUNCTION_FAILED; 1297 goto exit_restart; 1298 } 1299 1300 /* 1301 * Loads F/W from flash 1302 */ 1303 qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH); 1304 1305 qla8044_process_start_seq(vha); 1306 1307 exit_restart: 1308 return ret_val; 1309 } 1310 1311 /* 1312 * qla8044_check_cmd_peg_status - Check peg status to see if Peg is 1313 * initialized. 1314 * 1315 * @ha : Pointer to adapter structure 1316 * 1317 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1318 */ 1319 static int 1320 qla8044_check_cmd_peg_status(struct scsi_qla_host *vha) 1321 { 1322 uint32_t val, ret_val = QLA_FUNCTION_FAILED; 1323 int retries = CRB_CMDPEG_CHECK_RETRY_COUNT; 1324 struct qla_hw_data *ha = vha->hw; 1325 1326 do { 1327 val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE); 1328 if (val == PHAN_INITIALIZE_COMPLETE) { 1329 ql_dbg(ql_dbg_p3p, vha, 0xb0ac, 1330 "%s: Command Peg initialization " 1331 "complete! state=0x%x\n", __func__, val); 1332 ret_val = QLA_SUCCESS; 1333 break; 1334 } 1335 msleep(CRB_CMDPEG_CHECK_DELAY); 1336 } while (--retries); 1337 1338 return ret_val; 1339 } 1340 1341 static int 1342 qla8044_start_firmware(struct scsi_qla_host *vha) 1343 { 1344 int ret_val = QLA_SUCCESS; 1345 1346 if (qla8044_restart(vha)) { 1347 ql_log(ql_log_fatal, vha, 0xb0ad, 1348 "%s: Restart Error!!!, Need Reset!!!\n", 1349 __func__); 1350 ret_val = QLA_FUNCTION_FAILED; 1351 goto exit_start_fw; 1352 } else 1353 ql_dbg(ql_dbg_p3p, vha, 0xb0af, 1354 "%s: Restart done!\n", __func__); 1355 1356 ret_val = qla8044_check_cmd_peg_status(vha); 1357 if (ret_val) { 1358 ql_log(ql_log_fatal, vha, 0xb0b0, 1359 "%s: Peg not initialized!\n", __func__); 1360 ret_val = QLA_FUNCTION_FAILED; 1361 } 1362 1363 exit_start_fw: 1364 return ret_val; 1365 } 1366 1367 void 1368 qla8044_clear_drv_active(struct qla_hw_data *ha) 1369 { 1370 uint32_t drv_active; 1371 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 1372 1373 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1374 drv_active &= ~(1 << (ha->portnum)); 1375 1376 ql_log(ql_log_info, vha, 0xb0b1, 1377 "%s(%ld): drv_active: 0x%08x\n", 1378 __func__, vha->host_no, drv_active); 1379 1380 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); 1381 } 1382 1383 /* 1384 * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw 1385 * @ha: pointer to adapter structure 1386 * 1387 * Note: IDC lock must be held upon entry 1388 **/ 1389 static int 1390 qla8044_device_bootstrap(struct scsi_qla_host *vha) 1391 { 1392 int rval = QLA_FUNCTION_FAILED; 1393 int i; 1394 uint32_t old_count = 0, count = 0; 1395 int need_reset = 0; 1396 uint32_t idc_ctrl; 1397 struct qla_hw_data *ha = vha->hw; 1398 1399 need_reset = qla8044_need_reset(vha); 1400 1401 if (!need_reset) { 1402 old_count = qla8044_rd_direct(vha, 1403 QLA8044_PEG_ALIVE_COUNTER_INDEX); 1404 1405 for (i = 0; i < 10; i++) { 1406 msleep(200); 1407 1408 count = qla8044_rd_direct(vha, 1409 QLA8044_PEG_ALIVE_COUNTER_INDEX); 1410 if (count != old_count) { 1411 rval = QLA_SUCCESS; 1412 goto dev_ready; 1413 } 1414 } 1415 qla8044_flash_lock_recovery(vha); 1416 } else { 1417 /* We are trying to perform a recovery here. */ 1418 if (ha->flags.isp82xx_fw_hung) 1419 qla8044_flash_lock_recovery(vha); 1420 } 1421 1422 /* set to DEV_INITIALIZING */ 1423 ql_log(ql_log_info, vha, 0xb0b2, 1424 "%s: HW State: INITIALIZING\n", __func__); 1425 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1426 QLA8XXX_DEV_INITIALIZING); 1427 1428 qla8044_idc_unlock(ha); 1429 rval = qla8044_start_firmware(vha); 1430 qla8044_idc_lock(ha); 1431 1432 if (rval != QLA_SUCCESS) { 1433 ql_log(ql_log_info, vha, 0xb0b3, 1434 "%s: HW State: FAILED\n", __func__); 1435 qla8044_clear_drv_active(ha); 1436 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1437 QLA8XXX_DEV_FAILED); 1438 return rval; 1439 } 1440 1441 /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after 1442 * device goes to INIT state. */ 1443 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1444 if (idc_ctrl & GRACEFUL_RESET_BIT1) { 1445 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, 1446 (idc_ctrl & ~GRACEFUL_RESET_BIT1)); 1447 ha->fw_dumped = 0; 1448 } 1449 1450 dev_ready: 1451 ql_log(ql_log_info, vha, 0xb0b4, 1452 "%s: HW State: READY\n", __func__); 1453 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY); 1454 1455 return rval; 1456 } 1457 1458 /*-------------------------Reset Sequence Functions-----------------------*/ 1459 static void 1460 qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha) 1461 { 1462 u8 *phdr; 1463 1464 if (!vha->reset_tmplt.buff) { 1465 ql_log(ql_log_fatal, vha, 0xb0b5, 1466 "%s: Error Invalid reset_seq_template\n", __func__); 1467 return; 1468 } 1469 1470 phdr = vha->reset_tmplt.buff; 1471 ql_dbg(ql_dbg_p3p, vha, 0xb0b6, 1472 "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X" 1473 "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n" 1474 "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n", 1475 *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4), 1476 *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8), 1477 *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12), 1478 *(phdr+13), *(phdr+14), *(phdr+15)); 1479 } 1480 1481 /* 1482 * qla8044_reset_seq_checksum_test - Validate Reset Sequence template. 1483 * 1484 * @ha : Pointer to adapter structure 1485 * 1486 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1487 */ 1488 static int 1489 qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha) 1490 { 1491 uint32_t sum = 0; 1492 uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff; 1493 int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t); 1494 1495 while (u16_count-- > 0) 1496 sum += *buff++; 1497 1498 while (sum >> 16) 1499 sum = (sum & 0xFFFF) + (sum >> 16); 1500 1501 /* checksum of 0 indicates a valid template */ 1502 if (~sum) { 1503 return QLA_SUCCESS; 1504 } else { 1505 ql_log(ql_log_fatal, vha, 0xb0b7, 1506 "%s: Reset seq checksum failed\n", __func__); 1507 return QLA_FUNCTION_FAILED; 1508 } 1509 } 1510 1511 /* 1512 * qla8044_read_reset_template - Read Reset Template from Flash, validate 1513 * the template and store offsets of stop/start/init offsets in ha->reset_tmplt. 1514 * 1515 * @ha : Pointer to adapter structure 1516 */ 1517 void 1518 qla8044_read_reset_template(struct scsi_qla_host *vha) 1519 { 1520 uint8_t *p_buff; 1521 uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size; 1522 1523 vha->reset_tmplt.seq_error = 0; 1524 vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE); 1525 if (vha->reset_tmplt.buff == NULL) { 1526 ql_log(ql_log_fatal, vha, 0xb0b8, 1527 "%s: Failed to allocate reset template resources\n", 1528 __func__); 1529 goto exit_read_reset_template; 1530 } 1531 1532 p_buff = vha->reset_tmplt.buff; 1533 addr = QLA8044_RESET_TEMPLATE_ADDR; 1534 1535 tmplt_hdr_def_size = 1536 sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t); 1537 1538 ql_dbg(ql_dbg_p3p, vha, 0xb0b9, 1539 "%s: Read template hdr size %d from Flash\n", 1540 __func__, tmplt_hdr_def_size); 1541 1542 /* Copy template header from flash */ 1543 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { 1544 ql_log(ql_log_fatal, vha, 0xb0ba, 1545 "%s: Failed to read reset template\n", __func__); 1546 goto exit_read_template_error; 1547 } 1548 1549 vha->reset_tmplt.hdr = 1550 (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff; 1551 1552 /* Validate the template header size and signature */ 1553 tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t); 1554 if ((tmplt_hdr_size != tmplt_hdr_def_size) || 1555 (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) { 1556 ql_log(ql_log_fatal, vha, 0xb0bb, 1557 "%s: Template Header size invalid %d " 1558 "tmplt_hdr_def_size %d!!!\n", __func__, 1559 tmplt_hdr_size, tmplt_hdr_def_size); 1560 goto exit_read_template_error; 1561 } 1562 1563 addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size; 1564 p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size; 1565 tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size - 1566 vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t); 1567 1568 ql_dbg(ql_dbg_p3p, vha, 0xb0bc, 1569 "%s: Read rest of the template size %d\n", 1570 __func__, vha->reset_tmplt.hdr->size); 1571 1572 /* Copy rest of the template */ 1573 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { 1574 ql_log(ql_log_fatal, vha, 0xb0bd, 1575 "%s: Failed to read reset template\n", __func__); 1576 goto exit_read_template_error; 1577 } 1578 1579 /* Integrity check */ 1580 if (qla8044_reset_seq_checksum_test(vha)) { 1581 ql_log(ql_log_fatal, vha, 0xb0be, 1582 "%s: Reset Seq checksum failed!\n", __func__); 1583 goto exit_read_template_error; 1584 } 1585 1586 ql_dbg(ql_dbg_p3p, vha, 0xb0bf, 1587 "%s: Reset Seq checksum passed! Get stop, " 1588 "start and init seq offsets\n", __func__); 1589 1590 /* Get STOP, START, INIT sequence offsets */ 1591 vha->reset_tmplt.init_offset = vha->reset_tmplt.buff + 1592 vha->reset_tmplt.hdr->init_seq_offset; 1593 1594 vha->reset_tmplt.start_offset = vha->reset_tmplt.buff + 1595 vha->reset_tmplt.hdr->start_seq_offset; 1596 1597 vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff + 1598 vha->reset_tmplt.hdr->hdr_size; 1599 1600 qla8044_dump_reset_seq_hdr(vha); 1601 1602 goto exit_read_reset_template; 1603 1604 exit_read_template_error: 1605 vfree(vha->reset_tmplt.buff); 1606 1607 exit_read_reset_template: 1608 return; 1609 } 1610 1611 void 1612 qla8044_set_idc_dontreset(struct scsi_qla_host *vha) 1613 { 1614 uint32_t idc_ctrl; 1615 struct qla_hw_data *ha = vha->hw; 1616 1617 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1618 idc_ctrl |= DONTRESET_BIT0; 1619 ql_dbg(ql_dbg_p3p, vha, 0xb0c0, 1620 "%s: idc_ctrl = %d\n", __func__, idc_ctrl); 1621 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); 1622 } 1623 1624 static inline void 1625 qla8044_set_rst_ready(struct scsi_qla_host *vha) 1626 { 1627 uint32_t drv_state; 1628 struct qla_hw_data *ha = vha->hw; 1629 1630 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 1631 1632 /* For ISP8044, drv_active register has 1 bit per function, 1633 * shift 1 by func_num to set a bit for the function.*/ 1634 drv_state |= (1 << ha->portnum); 1635 1636 ql_log(ql_log_info, vha, 0xb0c1, 1637 "%s(%ld): drv_state: 0x%08x\n", 1638 __func__, vha->host_no, drv_state); 1639 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); 1640 } 1641 1642 /** 1643 * qla8044_need_reset_handler - Code to start reset sequence 1644 * @ha: pointer to adapter structure 1645 * 1646 * Note: IDC lock must be held upon entry 1647 **/ 1648 static void 1649 qla8044_need_reset_handler(struct scsi_qla_host *vha) 1650 { 1651 uint32_t dev_state = 0, drv_state, drv_active; 1652 unsigned long reset_timeout; 1653 struct qla_hw_data *ha = vha->hw; 1654 1655 ql_log(ql_log_fatal, vha, 0xb0c2, 1656 "%s: Performing ISP error recovery\n", __func__); 1657 1658 if (vha->flags.online) { 1659 qla8044_idc_unlock(ha); 1660 qla2x00_abort_isp_cleanup(vha); 1661 ha->isp_ops->get_flash_version(vha, vha->req->ring); 1662 ha->isp_ops->nvram_config(vha); 1663 qla8044_idc_lock(ha); 1664 } 1665 1666 dev_state = qla8044_rd_direct(vha, 1667 QLA8044_CRB_DEV_STATE_INDEX); 1668 drv_state = qla8044_rd_direct(vha, 1669 QLA8044_CRB_DRV_STATE_INDEX); 1670 drv_active = qla8044_rd_direct(vha, 1671 QLA8044_CRB_DRV_ACTIVE_INDEX); 1672 1673 ql_log(ql_log_info, vha, 0xb0c5, 1674 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n", 1675 __func__, vha->host_no, drv_state, drv_active, dev_state); 1676 1677 qla8044_set_rst_ready(vha); 1678 1679 /* wait for 10 seconds for reset ack from all functions */ 1680 reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ); 1681 1682 do { 1683 if (time_after_eq(jiffies, reset_timeout)) { 1684 ql_log(ql_log_info, vha, 0xb0c4, 1685 "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n", 1686 __func__, ha->portnum, drv_state, drv_active); 1687 break; 1688 } 1689 1690 qla8044_idc_unlock(ha); 1691 msleep(1000); 1692 qla8044_idc_lock(ha); 1693 1694 dev_state = qla8044_rd_direct(vha, 1695 QLA8044_CRB_DEV_STATE_INDEX); 1696 drv_state = qla8044_rd_direct(vha, 1697 QLA8044_CRB_DRV_STATE_INDEX); 1698 drv_active = qla8044_rd_direct(vha, 1699 QLA8044_CRB_DRV_ACTIVE_INDEX); 1700 } while (((drv_state & drv_active) != drv_active) && 1701 (dev_state == QLA8XXX_DEV_NEED_RESET)); 1702 1703 /* Remove IDC participation of functions not acknowledging */ 1704 if (drv_state != drv_active) { 1705 ql_log(ql_log_info, vha, 0xb0c7, 1706 "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n", 1707 __func__, vha->host_no, ha->portnum, 1708 (drv_active ^ drv_state)); 1709 drv_active = drv_active & drv_state; 1710 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, 1711 drv_active); 1712 } else { 1713 /* 1714 * Reset owner should execute reset recovery, 1715 * if all functions acknowledged 1716 */ 1717 if ((ha->flags.nic_core_reset_owner) && 1718 (dev_state == QLA8XXX_DEV_NEED_RESET)) { 1719 ha->flags.nic_core_reset_owner = 0; 1720 qla8044_device_bootstrap(vha); 1721 return; 1722 } 1723 } 1724 1725 /* Exit if non active function */ 1726 if (!(drv_active & (1 << ha->portnum))) { 1727 ha->flags.nic_core_reset_owner = 0; 1728 return; 1729 } 1730 1731 /* 1732 * Execute Reset Recovery if Reset Owner or Function 7 1733 * is the only active function 1734 */ 1735 if (ha->flags.nic_core_reset_owner || 1736 ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) { 1737 ha->flags.nic_core_reset_owner = 0; 1738 qla8044_device_bootstrap(vha); 1739 } 1740 } 1741 1742 static void 1743 qla8044_set_drv_active(struct scsi_qla_host *vha) 1744 { 1745 uint32_t drv_active; 1746 struct qla_hw_data *ha = vha->hw; 1747 1748 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1749 1750 /* For ISP8044, drv_active register has 1 bit per function, 1751 * shift 1 by func_num to set a bit for the function.*/ 1752 drv_active |= (1 << ha->portnum); 1753 1754 ql_log(ql_log_info, vha, 0xb0c8, 1755 "%s(%ld): drv_active: 0x%08x\n", 1756 __func__, vha->host_no, drv_active); 1757 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); 1758 } 1759 1760 static int 1761 qla8044_check_drv_active(struct scsi_qla_host *vha) 1762 { 1763 uint32_t drv_active; 1764 struct qla_hw_data *ha = vha->hw; 1765 1766 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1767 if (drv_active & (1 << ha->portnum)) 1768 return QLA_SUCCESS; 1769 else 1770 return QLA_TEST_FAILED; 1771 } 1772 1773 static void 1774 qla8044_clear_idc_dontreset(struct scsi_qla_host *vha) 1775 { 1776 uint32_t idc_ctrl; 1777 struct qla_hw_data *ha = vha->hw; 1778 1779 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1780 idc_ctrl &= ~DONTRESET_BIT0; 1781 ql_log(ql_log_info, vha, 0xb0c9, 1782 "%s: idc_ctrl = %d\n", __func__, 1783 idc_ctrl); 1784 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); 1785 } 1786 1787 static int 1788 qla8044_set_idc_ver(struct scsi_qla_host *vha) 1789 { 1790 int idc_ver; 1791 uint32_t drv_active; 1792 int rval = QLA_SUCCESS; 1793 struct qla_hw_data *ha = vha->hw; 1794 1795 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1796 if (drv_active == (1 << ha->portnum)) { 1797 idc_ver = qla8044_rd_direct(vha, 1798 QLA8044_CRB_DRV_IDC_VERSION_INDEX); 1799 idc_ver &= (~0xFF); 1800 idc_ver |= QLA8044_IDC_VER_MAJ_VALUE; 1801 qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX, 1802 idc_ver); 1803 ql_log(ql_log_info, vha, 0xb0ca, 1804 "%s: IDC version updated to %d\n", 1805 __func__, idc_ver); 1806 } else { 1807 idc_ver = qla8044_rd_direct(vha, 1808 QLA8044_CRB_DRV_IDC_VERSION_INDEX); 1809 idc_ver &= 0xFF; 1810 if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) { 1811 ql_log(ql_log_info, vha, 0xb0cb, 1812 "%s: qla4xxx driver IDC version %d " 1813 "is not compatible with IDC version %d " 1814 "of other drivers!\n", 1815 __func__, QLA8044_IDC_VER_MAJ_VALUE, 1816 idc_ver); 1817 rval = QLA_FUNCTION_FAILED; 1818 goto exit_set_idc_ver; 1819 } 1820 } 1821 1822 /* Update IDC_MINOR_VERSION */ 1823 idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR); 1824 idc_ver &= ~(0x03 << (ha->portnum * 2)); 1825 idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2)); 1826 qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver); 1827 1828 exit_set_idc_ver: 1829 return rval; 1830 } 1831 1832 static int 1833 qla8044_update_idc_reg(struct scsi_qla_host *vha) 1834 { 1835 uint32_t drv_active; 1836 int rval = QLA_SUCCESS; 1837 struct qla_hw_data *ha = vha->hw; 1838 1839 if (vha->flags.init_done) 1840 goto exit_update_idc_reg; 1841 1842 qla8044_idc_lock(ha); 1843 qla8044_set_drv_active(vha); 1844 1845 drv_active = qla8044_rd_direct(vha, 1846 QLA8044_CRB_DRV_ACTIVE_INDEX); 1847 1848 /* If we are the first driver to load and 1849 * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */ 1850 if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba) 1851 qla8044_clear_idc_dontreset(vha); 1852 1853 rval = qla8044_set_idc_ver(vha); 1854 if (rval == QLA_FUNCTION_FAILED) 1855 qla8044_clear_drv_active(ha); 1856 qla8044_idc_unlock(ha); 1857 1858 exit_update_idc_reg: 1859 return rval; 1860 } 1861 1862 /** 1863 * qla8044_need_qsnt_handler - Code to start qsnt 1864 * @ha: pointer to adapter structure 1865 **/ 1866 static void 1867 qla8044_need_qsnt_handler(struct scsi_qla_host *vha) 1868 { 1869 unsigned long qsnt_timeout; 1870 uint32_t drv_state, drv_active, dev_state; 1871 struct qla_hw_data *ha = vha->hw; 1872 1873 if (vha->flags.online) 1874 qla2x00_quiesce_io(vha); 1875 else 1876 return; 1877 1878 qla8044_set_qsnt_ready(vha); 1879 1880 /* Wait for 30 secs for all functions to ack qsnt mode */ 1881 qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ); 1882 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 1883 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1884 1885 /* Shift drv_active by 1 to match drv_state. As quiescent ready bit 1886 position is at bit 1 and drv active is at bit 0 */ 1887 drv_active = drv_active << 1; 1888 1889 while (drv_state != drv_active) { 1890 if (time_after_eq(jiffies, qsnt_timeout)) { 1891 /* Other functions did not ack, changing state to 1892 * DEV_READY 1893 */ 1894 clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1895 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1896 QLA8XXX_DEV_READY); 1897 qla8044_clear_qsnt_ready(vha); 1898 ql_log(ql_log_info, vha, 0xb0cc, 1899 "Timeout waiting for quiescent ack!!!\n"); 1900 return; 1901 } 1902 qla8044_idc_unlock(ha); 1903 msleep(1000); 1904 qla8044_idc_lock(ha); 1905 1906 drv_state = qla8044_rd_direct(vha, 1907 QLA8044_CRB_DRV_STATE_INDEX); 1908 drv_active = qla8044_rd_direct(vha, 1909 QLA8044_CRB_DRV_ACTIVE_INDEX); 1910 drv_active = drv_active << 1; 1911 } 1912 1913 /* All functions have Acked. Set quiescent state */ 1914 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1915 1916 if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) { 1917 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1918 QLA8XXX_DEV_QUIESCENT); 1919 ql_log(ql_log_info, vha, 0xb0cd, 1920 "%s: HW State: QUIESCENT\n", __func__); 1921 } 1922 } 1923 1924 /* 1925 * qla8044_device_state_handler - Adapter state machine 1926 * @ha: pointer to host adapter structure. 1927 * 1928 * Note: IDC lock must be UNLOCKED upon entry 1929 **/ 1930 int 1931 qla8044_device_state_handler(struct scsi_qla_host *vha) 1932 { 1933 uint32_t dev_state; 1934 int rval = QLA_SUCCESS; 1935 unsigned long dev_init_timeout; 1936 struct qla_hw_data *ha = vha->hw; 1937 1938 rval = qla8044_update_idc_reg(vha); 1939 if (rval == QLA_FUNCTION_FAILED) 1940 goto exit_error; 1941 1942 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1943 ql_dbg(ql_dbg_p3p, vha, 0xb0ce, 1944 "Device state is 0x%x = %s\n", 1945 dev_state, dev_state < MAX_STATES ? 1946 qdev_state(dev_state) : "Unknown"); 1947 1948 /* wait for 30 seconds for device to go ready */ 1949 dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ); 1950 1951 qla8044_idc_lock(ha); 1952 1953 while (1) { 1954 if (time_after_eq(jiffies, dev_init_timeout)) { 1955 if (qla8044_check_drv_active(vha) == QLA_SUCCESS) { 1956 ql_log(ql_log_warn, vha, 0xb0cf, 1957 "%s: Device Init Failed 0x%x = %s\n", 1958 QLA2XXX_DRIVER_NAME, dev_state, 1959 dev_state < MAX_STATES ? 1960 qdev_state(dev_state) : "Unknown"); 1961 qla8044_wr_direct(vha, 1962 QLA8044_CRB_DEV_STATE_INDEX, 1963 QLA8XXX_DEV_FAILED); 1964 } 1965 } 1966 1967 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1968 ql_log(ql_log_info, vha, 0xb0d0, 1969 "Device state is 0x%x = %s\n", 1970 dev_state, dev_state < MAX_STATES ? 1971 qdev_state(dev_state) : "Unknown"); 1972 1973 /* NOTE: Make sure idc unlocked upon exit of switch statement */ 1974 switch (dev_state) { 1975 case QLA8XXX_DEV_READY: 1976 ha->flags.nic_core_reset_owner = 0; 1977 goto exit; 1978 case QLA8XXX_DEV_COLD: 1979 rval = qla8044_device_bootstrap(vha); 1980 break; 1981 case QLA8XXX_DEV_INITIALIZING: 1982 qla8044_idc_unlock(ha); 1983 msleep(1000); 1984 qla8044_idc_lock(ha); 1985 break; 1986 case QLA8XXX_DEV_NEED_RESET: 1987 /* For ISP8044, if NEED_RESET is set by any driver, 1988 * it should be honored, irrespective of IDC_CTRL 1989 * DONTRESET_BIT0 */ 1990 qla8044_need_reset_handler(vha); 1991 break; 1992 case QLA8XXX_DEV_NEED_QUIESCENT: 1993 /* idc locked/unlocked in handler */ 1994 qla8044_need_qsnt_handler(vha); 1995 1996 /* Reset the init timeout after qsnt handler */ 1997 dev_init_timeout = jiffies + 1998 (ha->fcoe_reset_timeout * HZ); 1999 break; 2000 case QLA8XXX_DEV_QUIESCENT: 2001 ql_log(ql_log_info, vha, 0xb0d1, 2002 "HW State: QUIESCENT\n"); 2003 2004 qla8044_idc_unlock(ha); 2005 msleep(1000); 2006 qla8044_idc_lock(ha); 2007 2008 /* Reset the init timeout after qsnt handler */ 2009 dev_init_timeout = jiffies + 2010 (ha->fcoe_reset_timeout * HZ); 2011 break; 2012 case QLA8XXX_DEV_FAILED: 2013 ha->flags.nic_core_reset_owner = 0; 2014 qla8044_idc_unlock(ha); 2015 qla8xxx_dev_failed_handler(vha); 2016 rval = QLA_FUNCTION_FAILED; 2017 qla8044_idc_lock(ha); 2018 goto exit; 2019 default: 2020 qla8044_idc_unlock(ha); 2021 qla8xxx_dev_failed_handler(vha); 2022 rval = QLA_FUNCTION_FAILED; 2023 qla8044_idc_lock(ha); 2024 goto exit; 2025 } 2026 } 2027 exit: 2028 qla8044_idc_unlock(ha); 2029 2030 exit_error: 2031 return rval; 2032 } 2033 2034 /** 2035 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 2036 * @ha: adapter block pointer. 2037 * 2038 * Note: The caller should not hold the idc lock. 2039 **/ 2040 static int 2041 qla8044_check_temp(struct scsi_qla_host *vha) 2042 { 2043 uint32_t temp, temp_state, temp_val; 2044 int status = QLA_SUCCESS; 2045 2046 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); 2047 temp_state = qla82xx_get_temp_state(temp); 2048 temp_val = qla82xx_get_temp_val(temp); 2049 2050 if (temp_state == QLA82XX_TEMP_PANIC) { 2051 ql_log(ql_log_warn, vha, 0xb0d2, 2052 "Device temperature %d degrees C" 2053 " exceeds maximum allowed. Hardware has been shut" 2054 " down\n", temp_val); 2055 status = QLA_FUNCTION_FAILED; 2056 return status; 2057 } else if (temp_state == QLA82XX_TEMP_WARN) { 2058 ql_log(ql_log_warn, vha, 0xb0d3, 2059 "Device temperature %d" 2060 " degrees C exceeds operating range." 2061 " Immediate action needed.\n", temp_val); 2062 } 2063 return 0; 2064 } 2065 2066 int qla8044_read_temperature(scsi_qla_host_t *vha) 2067 { 2068 uint32_t temp; 2069 2070 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); 2071 return qla82xx_get_temp_val(temp); 2072 } 2073 2074 /** 2075 * qla8044_check_fw_alive - Check firmware health 2076 * @ha: Pointer to host adapter structure. 2077 * 2078 * Context: Interrupt 2079 **/ 2080 int 2081 qla8044_check_fw_alive(struct scsi_qla_host *vha) 2082 { 2083 uint32_t fw_heartbeat_counter; 2084 uint32_t halt_status1, halt_status2; 2085 int status = QLA_SUCCESS; 2086 2087 fw_heartbeat_counter = qla8044_rd_direct(vha, 2088 QLA8044_PEG_ALIVE_COUNTER_INDEX); 2089 2090 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 2091 if (fw_heartbeat_counter == 0xffffffff) { 2092 ql_dbg(ql_dbg_p3p, vha, 0xb0d4, 2093 "scsi%ld: %s: Device in frozen " 2094 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 2095 vha->host_no, __func__); 2096 return status; 2097 } 2098 2099 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) { 2100 vha->seconds_since_last_heartbeat++; 2101 /* FW not alive after 2 seconds */ 2102 if (vha->seconds_since_last_heartbeat == 2) { 2103 vha->seconds_since_last_heartbeat = 0; 2104 halt_status1 = qla8044_rd_direct(vha, 2105 QLA8044_PEG_HALT_STATUS1_INDEX); 2106 halt_status2 = qla8044_rd_direct(vha, 2107 QLA8044_PEG_HALT_STATUS2_INDEX); 2108 2109 ql_log(ql_log_info, vha, 0xb0d5, 2110 "scsi(%ld): %s, ISP8044 " 2111 "Dumping hw/fw registers:\n" 2112 " PEG_HALT_STATUS1: 0x%x, " 2113 "PEG_HALT_STATUS2: 0x%x,\n", 2114 vha->host_no, __func__, halt_status1, 2115 halt_status2); 2116 status = QLA_FUNCTION_FAILED; 2117 } 2118 } else 2119 vha->seconds_since_last_heartbeat = 0; 2120 2121 vha->fw_heartbeat_counter = fw_heartbeat_counter; 2122 return status; 2123 } 2124 2125 void 2126 qla8044_watchdog(struct scsi_qla_host *vha) 2127 { 2128 uint32_t dev_state, halt_status; 2129 int halt_status_unrecoverable = 0; 2130 struct qla_hw_data *ha = vha->hw; 2131 2132 /* don't poll if reset is going on or FW hang in quiescent state */ 2133 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || 2134 test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) { 2135 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 2136 2137 if (qla8044_check_fw_alive(vha)) { 2138 ha->flags.isp82xx_fw_hung = 1; 2139 ql_log(ql_log_warn, vha, 0xb10a, 2140 "Firmware hung.\n"); 2141 qla82xx_clear_pending_mbx(vha); 2142 } 2143 2144 if (qla8044_check_temp(vha)) { 2145 set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags); 2146 ha->flags.isp82xx_fw_hung = 1; 2147 qla2xxx_wake_dpc(vha); 2148 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2149 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) { 2150 ql_log(ql_log_info, vha, 0xb0d6, 2151 "%s: HW State: NEED RESET!\n", 2152 __func__); 2153 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2154 qla2xxx_wake_dpc(vha); 2155 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 2156 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) { 2157 ql_log(ql_log_info, vha, 0xb0d7, 2158 "%s: HW State: NEED QUIES detected!\n", 2159 __func__); 2160 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 2161 qla2xxx_wake_dpc(vha); 2162 } else { 2163 /* Check firmware health */ 2164 if (ha->flags.isp82xx_fw_hung) { 2165 halt_status = qla8044_rd_direct(vha, 2166 QLA8044_PEG_HALT_STATUS1_INDEX); 2167 if (halt_status & 2168 QLA8044_HALT_STATUS_FW_RESET) { 2169 ql_log(ql_log_fatal, vha, 2170 0xb0d8, "%s: Firmware " 2171 "error detected device " 2172 "is being reset\n", 2173 __func__); 2174 } else if (halt_status & 2175 QLA8044_HALT_STATUS_UNRECOVERABLE) { 2176 halt_status_unrecoverable = 1; 2177 } 2178 2179 /* Since we cannot change dev_state in interrupt 2180 * context, set appropriate DPC flag then wakeup 2181 * DPC */ 2182 if (halt_status_unrecoverable) { 2183 set_bit(ISP_UNRECOVERABLE, 2184 &vha->dpc_flags); 2185 } else { 2186 if (dev_state == 2187 QLA8XXX_DEV_QUIESCENT) { 2188 set_bit(FCOE_CTX_RESET_NEEDED, 2189 &vha->dpc_flags); 2190 ql_log(ql_log_info, vha, 0xb0d9, 2191 "%s: FW CONTEXT Reset " 2192 "needed!\n", __func__); 2193 } else { 2194 ql_log(ql_log_info, vha, 2195 0xb0da, "%s: " 2196 "detect abort needed\n", 2197 __func__); 2198 set_bit(ISP_ABORT_NEEDED, 2199 &vha->dpc_flags); 2200 } 2201 } 2202 qla2xxx_wake_dpc(vha); 2203 } 2204 } 2205 2206 } 2207 } 2208 2209 static int 2210 qla8044_minidump_process_control(struct scsi_qla_host *vha, 2211 struct qla8044_minidump_entry_hdr *entry_hdr) 2212 { 2213 struct qla8044_minidump_entry_crb *crb_entry; 2214 uint32_t read_value, opcode, poll_time, addr, index; 2215 uint32_t crb_addr, rval = QLA_SUCCESS; 2216 unsigned long wtime; 2217 struct qla8044_minidump_template_hdr *tmplt_hdr; 2218 int i; 2219 struct qla_hw_data *ha = vha->hw; 2220 2221 ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__); 2222 tmplt_hdr = (struct qla8044_minidump_template_hdr *) 2223 ha->md_tmplt_hdr; 2224 crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr; 2225 2226 crb_addr = crb_entry->addr; 2227 for (i = 0; i < crb_entry->op_count; i++) { 2228 opcode = crb_entry->crb_ctrl.opcode; 2229 2230 if (opcode & QLA82XX_DBG_OPCODE_WR) { 2231 qla8044_wr_reg_indirect(vha, crb_addr, 2232 crb_entry->value_1); 2233 opcode &= ~QLA82XX_DBG_OPCODE_WR; 2234 } 2235 2236 if (opcode & QLA82XX_DBG_OPCODE_RW) { 2237 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2238 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2239 opcode &= ~QLA82XX_DBG_OPCODE_RW; 2240 } 2241 2242 if (opcode & QLA82XX_DBG_OPCODE_AND) { 2243 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2244 read_value &= crb_entry->value_2; 2245 opcode &= ~QLA82XX_DBG_OPCODE_AND; 2246 if (opcode & QLA82XX_DBG_OPCODE_OR) { 2247 read_value |= crb_entry->value_3; 2248 opcode &= ~QLA82XX_DBG_OPCODE_OR; 2249 } 2250 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2251 } 2252 if (opcode & QLA82XX_DBG_OPCODE_OR) { 2253 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2254 read_value |= crb_entry->value_3; 2255 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2256 opcode &= ~QLA82XX_DBG_OPCODE_OR; 2257 } 2258 if (opcode & QLA82XX_DBG_OPCODE_POLL) { 2259 poll_time = crb_entry->crb_strd.poll_timeout; 2260 wtime = jiffies + poll_time; 2261 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2262 2263 do { 2264 if ((read_value & crb_entry->value_2) == 2265 crb_entry->value_1) { 2266 break; 2267 } else if (time_after_eq(jiffies, wtime)) { 2268 /* capturing dump failed */ 2269 rval = QLA_FUNCTION_FAILED; 2270 break; 2271 } else { 2272 qla8044_rd_reg_indirect(vha, 2273 crb_addr, &read_value); 2274 } 2275 } while (1); 2276 opcode &= ~QLA82XX_DBG_OPCODE_POLL; 2277 } 2278 2279 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) { 2280 if (crb_entry->crb_strd.state_index_a) { 2281 index = crb_entry->crb_strd.state_index_a; 2282 addr = tmplt_hdr->saved_state_array[index]; 2283 } else { 2284 addr = crb_addr; 2285 } 2286 2287 qla8044_rd_reg_indirect(vha, addr, &read_value); 2288 index = crb_entry->crb_ctrl.state_index_v; 2289 tmplt_hdr->saved_state_array[index] = read_value; 2290 opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE; 2291 } 2292 2293 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) { 2294 if (crb_entry->crb_strd.state_index_a) { 2295 index = crb_entry->crb_strd.state_index_a; 2296 addr = tmplt_hdr->saved_state_array[index]; 2297 } else { 2298 addr = crb_addr; 2299 } 2300 2301 if (crb_entry->crb_ctrl.state_index_v) { 2302 index = crb_entry->crb_ctrl.state_index_v; 2303 read_value = 2304 tmplt_hdr->saved_state_array[index]; 2305 } else { 2306 read_value = crb_entry->value_1; 2307 } 2308 2309 qla8044_wr_reg_indirect(vha, addr, read_value); 2310 opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE; 2311 } 2312 2313 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) { 2314 index = crb_entry->crb_ctrl.state_index_v; 2315 read_value = tmplt_hdr->saved_state_array[index]; 2316 read_value <<= crb_entry->crb_ctrl.shl; 2317 read_value >>= crb_entry->crb_ctrl.shr; 2318 if (crb_entry->value_2) 2319 read_value &= crb_entry->value_2; 2320 read_value |= crb_entry->value_3; 2321 read_value += crb_entry->value_1; 2322 tmplt_hdr->saved_state_array[index] = read_value; 2323 opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE; 2324 } 2325 crb_addr += crb_entry->crb_strd.addr_stride; 2326 } 2327 return rval; 2328 } 2329 2330 static void 2331 qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha, 2332 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2333 { 2334 uint32_t r_addr, r_stride, loop_cnt, i, r_value; 2335 struct qla8044_minidump_entry_crb *crb_hdr; 2336 uint32_t *data_ptr = *d_ptr; 2337 2338 ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__); 2339 crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr; 2340 r_addr = crb_hdr->addr; 2341 r_stride = crb_hdr->crb_strd.addr_stride; 2342 loop_cnt = crb_hdr->op_count; 2343 2344 for (i = 0; i < loop_cnt; i++) { 2345 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2346 *data_ptr++ = r_addr; 2347 *data_ptr++ = r_value; 2348 r_addr += r_stride; 2349 } 2350 *d_ptr = data_ptr; 2351 } 2352 2353 static int 2354 qla8044_minidump_process_rdmem(struct scsi_qla_host *vha, 2355 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2356 { 2357 uint32_t r_addr, r_value, r_data; 2358 uint32_t i, j, loop_cnt; 2359 struct qla8044_minidump_entry_rdmem *m_hdr; 2360 unsigned long flags; 2361 uint32_t *data_ptr = *d_ptr; 2362 struct qla_hw_data *ha = vha->hw; 2363 2364 ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__); 2365 m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr; 2366 r_addr = m_hdr->read_addr; 2367 loop_cnt = m_hdr->read_data_size/16; 2368 2369 ql_dbg(ql_dbg_p3p, vha, 0xb0f0, 2370 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n", 2371 __func__, r_addr, m_hdr->read_data_size); 2372 2373 if (r_addr & 0xf) { 2374 ql_dbg(ql_dbg_p3p, vha, 0xb0f1, 2375 "[%s]: Read addr 0x%x not 16 bytes aligned\n", 2376 __func__, r_addr); 2377 return QLA_FUNCTION_FAILED; 2378 } 2379 2380 if (m_hdr->read_data_size % 16) { 2381 ql_dbg(ql_dbg_p3p, vha, 0xb0f2, 2382 "[%s]: Read data[0x%x] not multiple of 16 bytes\n", 2383 __func__, m_hdr->read_data_size); 2384 return QLA_FUNCTION_FAILED; 2385 } 2386 2387 ql_dbg(ql_dbg_p3p, vha, 0xb0f3, 2388 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n", 2389 __func__, r_addr, m_hdr->read_data_size, loop_cnt); 2390 2391 write_lock_irqsave(&ha->hw_lock, flags); 2392 for (i = 0; i < loop_cnt; i++) { 2393 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr); 2394 r_value = 0; 2395 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value); 2396 r_value = MIU_TA_CTL_ENABLE; 2397 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); 2398 r_value = MIU_TA_CTL_START_ENABLE; 2399 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); 2400 2401 for (j = 0; j < MAX_CTL_CHECK; j++) { 2402 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 2403 &r_value); 2404 if ((r_value & MIU_TA_CTL_BUSY) == 0) 2405 break; 2406 } 2407 2408 if (j >= MAX_CTL_CHECK) { 2409 write_unlock_irqrestore(&ha->hw_lock, flags); 2410 return QLA_SUCCESS; 2411 } 2412 2413 for (j = 0; j < 4; j++) { 2414 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j], 2415 &r_data); 2416 *data_ptr++ = r_data; 2417 } 2418 2419 r_addr += 16; 2420 } 2421 write_unlock_irqrestore(&ha->hw_lock, flags); 2422 2423 ql_dbg(ql_dbg_p3p, vha, 0xb0f4, 2424 "Leaving fn: %s datacount: 0x%x\n", 2425 __func__, (loop_cnt * 16)); 2426 2427 *d_ptr = data_ptr; 2428 return QLA_SUCCESS; 2429 } 2430 2431 /* ISP83xx flash read for _RDROM _BOARD */ 2432 static uint32_t 2433 qla8044_minidump_process_rdrom(struct scsi_qla_host *vha, 2434 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2435 { 2436 uint32_t fl_addr, u32_count, rval; 2437 struct qla8044_minidump_entry_rdrom *rom_hdr; 2438 uint32_t *data_ptr = *d_ptr; 2439 2440 rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr; 2441 fl_addr = rom_hdr->read_addr; 2442 u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t); 2443 2444 ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n", 2445 __func__, fl_addr, u32_count); 2446 2447 rval = qla8044_lockless_flash_read_u32(vha, fl_addr, 2448 (u8 *)(data_ptr), u32_count); 2449 2450 if (rval != QLA_SUCCESS) { 2451 ql_log(ql_log_fatal, vha, 0xb0f6, 2452 "%s: Flash Read Error,Count=%d\n", __func__, u32_count); 2453 return QLA_FUNCTION_FAILED; 2454 } else { 2455 data_ptr += u32_count; 2456 *d_ptr = data_ptr; 2457 return QLA_SUCCESS; 2458 } 2459 } 2460 2461 static void 2462 qla8044_mark_entry_skipped(struct scsi_qla_host *vha, 2463 struct qla8044_minidump_entry_hdr *entry_hdr, int index) 2464 { 2465 entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG; 2466 2467 ql_log(ql_log_info, vha, 0xb0f7, 2468 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n", 2469 vha->host_no, index, entry_hdr->entry_type, 2470 entry_hdr->d_ctrl.entry_capture_mask); 2471 } 2472 2473 static int 2474 qla8044_minidump_process_l2tag(struct scsi_qla_host *vha, 2475 struct qla8044_minidump_entry_hdr *entry_hdr, 2476 uint32_t **d_ptr) 2477 { 2478 uint32_t addr, r_addr, c_addr, t_r_addr; 2479 uint32_t i, k, loop_count, t_value, r_cnt, r_value; 2480 unsigned long p_wait, w_time, p_mask; 2481 uint32_t c_value_w, c_value_r; 2482 struct qla8044_minidump_entry_cache *cache_hdr; 2483 int rval = QLA_FUNCTION_FAILED; 2484 uint32_t *data_ptr = *d_ptr; 2485 2486 ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__); 2487 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; 2488 2489 loop_count = cache_hdr->op_count; 2490 r_addr = cache_hdr->read_addr; 2491 c_addr = cache_hdr->control_addr; 2492 c_value_w = cache_hdr->cache_ctrl.write_value; 2493 2494 t_r_addr = cache_hdr->tag_reg_addr; 2495 t_value = cache_hdr->addr_ctrl.init_tag_value; 2496 r_cnt = cache_hdr->read_ctrl.read_addr_cnt; 2497 p_wait = cache_hdr->cache_ctrl.poll_wait; 2498 p_mask = cache_hdr->cache_ctrl.poll_mask; 2499 2500 for (i = 0; i < loop_count; i++) { 2501 qla8044_wr_reg_indirect(vha, t_r_addr, t_value); 2502 if (c_value_w) 2503 qla8044_wr_reg_indirect(vha, c_addr, c_value_w); 2504 2505 if (p_mask) { 2506 w_time = jiffies + p_wait; 2507 do { 2508 qla8044_rd_reg_indirect(vha, c_addr, 2509 &c_value_r); 2510 if ((c_value_r & p_mask) == 0) { 2511 break; 2512 } else if (time_after_eq(jiffies, w_time)) { 2513 /* capturing dump failed */ 2514 return rval; 2515 } 2516 } while (1); 2517 } 2518 2519 addr = r_addr; 2520 for (k = 0; k < r_cnt; k++) { 2521 qla8044_rd_reg_indirect(vha, addr, &r_value); 2522 *data_ptr++ = r_value; 2523 addr += cache_hdr->read_ctrl.read_addr_stride; 2524 } 2525 t_value += cache_hdr->addr_ctrl.tag_value_stride; 2526 } 2527 *d_ptr = data_ptr; 2528 return QLA_SUCCESS; 2529 } 2530 2531 static void 2532 qla8044_minidump_process_l1cache(struct scsi_qla_host *vha, 2533 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2534 { 2535 uint32_t addr, r_addr, c_addr, t_r_addr; 2536 uint32_t i, k, loop_count, t_value, r_cnt, r_value; 2537 uint32_t c_value_w; 2538 struct qla8044_minidump_entry_cache *cache_hdr; 2539 uint32_t *data_ptr = *d_ptr; 2540 2541 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; 2542 loop_count = cache_hdr->op_count; 2543 r_addr = cache_hdr->read_addr; 2544 c_addr = cache_hdr->control_addr; 2545 c_value_w = cache_hdr->cache_ctrl.write_value; 2546 2547 t_r_addr = cache_hdr->tag_reg_addr; 2548 t_value = cache_hdr->addr_ctrl.init_tag_value; 2549 r_cnt = cache_hdr->read_ctrl.read_addr_cnt; 2550 2551 for (i = 0; i < loop_count; i++) { 2552 qla8044_wr_reg_indirect(vha, t_r_addr, t_value); 2553 qla8044_wr_reg_indirect(vha, c_addr, c_value_w); 2554 addr = r_addr; 2555 for (k = 0; k < r_cnt; k++) { 2556 qla8044_rd_reg_indirect(vha, addr, &r_value); 2557 *data_ptr++ = r_value; 2558 addr += cache_hdr->read_ctrl.read_addr_stride; 2559 } 2560 t_value += cache_hdr->addr_ctrl.tag_value_stride; 2561 } 2562 *d_ptr = data_ptr; 2563 } 2564 2565 static void 2566 qla8044_minidump_process_rdocm(struct scsi_qla_host *vha, 2567 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2568 { 2569 uint32_t r_addr, r_stride, loop_cnt, i, r_value; 2570 struct qla8044_minidump_entry_rdocm *ocm_hdr; 2571 uint32_t *data_ptr = *d_ptr; 2572 struct qla_hw_data *ha = vha->hw; 2573 2574 ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__); 2575 2576 ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr; 2577 r_addr = ocm_hdr->read_addr; 2578 r_stride = ocm_hdr->read_addr_stride; 2579 loop_cnt = ocm_hdr->op_count; 2580 2581 ql_dbg(ql_dbg_p3p, vha, 0xb0fa, 2582 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n", 2583 __func__, r_addr, r_stride, loop_cnt); 2584 2585 for (i = 0; i < loop_cnt; i++) { 2586 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase)); 2587 *data_ptr++ = r_value; 2588 r_addr += r_stride; 2589 } 2590 ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n", 2591 __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))); 2592 2593 *d_ptr = data_ptr; 2594 } 2595 2596 static void 2597 qla8044_minidump_process_rdmux(struct scsi_qla_host *vha, 2598 struct qla8044_minidump_entry_hdr *entry_hdr, 2599 uint32_t **d_ptr) 2600 { 2601 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value; 2602 struct qla8044_minidump_entry_mux *mux_hdr; 2603 uint32_t *data_ptr = *d_ptr; 2604 2605 ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__); 2606 2607 mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr; 2608 r_addr = mux_hdr->read_addr; 2609 s_addr = mux_hdr->select_addr; 2610 s_stride = mux_hdr->select_value_stride; 2611 s_value = mux_hdr->select_value; 2612 loop_cnt = mux_hdr->op_count; 2613 2614 for (i = 0; i < loop_cnt; i++) { 2615 qla8044_wr_reg_indirect(vha, s_addr, s_value); 2616 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2617 *data_ptr++ = s_value; 2618 *data_ptr++ = r_value; 2619 s_value += s_stride; 2620 } 2621 *d_ptr = data_ptr; 2622 } 2623 2624 static void 2625 qla8044_minidump_process_queue(struct scsi_qla_host *vha, 2626 struct qla8044_minidump_entry_hdr *entry_hdr, 2627 uint32_t **d_ptr) 2628 { 2629 uint32_t s_addr, r_addr; 2630 uint32_t r_stride, r_value, r_cnt, qid = 0; 2631 uint32_t i, k, loop_cnt; 2632 struct qla8044_minidump_entry_queue *q_hdr; 2633 uint32_t *data_ptr = *d_ptr; 2634 2635 ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__); 2636 q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr; 2637 s_addr = q_hdr->select_addr; 2638 r_cnt = q_hdr->rd_strd.read_addr_cnt; 2639 r_stride = q_hdr->rd_strd.read_addr_stride; 2640 loop_cnt = q_hdr->op_count; 2641 2642 for (i = 0; i < loop_cnt; i++) { 2643 qla8044_wr_reg_indirect(vha, s_addr, qid); 2644 r_addr = q_hdr->read_addr; 2645 for (k = 0; k < r_cnt; k++) { 2646 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2647 *data_ptr++ = r_value; 2648 r_addr += r_stride; 2649 } 2650 qid += q_hdr->q_strd.queue_id_stride; 2651 } 2652 *d_ptr = data_ptr; 2653 } 2654 2655 /* ISP83xx functions to process new minidump entries... */ 2656 static uint32_t 2657 qla8044_minidump_process_pollrd(struct scsi_qla_host *vha, 2658 struct qla8044_minidump_entry_hdr *entry_hdr, 2659 uint32_t **d_ptr) 2660 { 2661 uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask; 2662 uint16_t s_stride, i; 2663 struct qla8044_minidump_entry_pollrd *pollrd_hdr; 2664 uint32_t *data_ptr = *d_ptr; 2665 2666 pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr; 2667 s_addr = pollrd_hdr->select_addr; 2668 r_addr = pollrd_hdr->read_addr; 2669 s_value = pollrd_hdr->select_value; 2670 s_stride = pollrd_hdr->select_value_stride; 2671 2672 poll_wait = pollrd_hdr->poll_wait; 2673 poll_mask = pollrd_hdr->poll_mask; 2674 2675 for (i = 0; i < pollrd_hdr->op_count; i++) { 2676 qla8044_wr_reg_indirect(vha, s_addr, s_value); 2677 poll_wait = pollrd_hdr->poll_wait; 2678 while (1) { 2679 qla8044_rd_reg_indirect(vha, s_addr, &r_value); 2680 if ((r_value & poll_mask) != 0) { 2681 break; 2682 } else { 2683 usleep_range(1000, 1100); 2684 if (--poll_wait == 0) { 2685 ql_log(ql_log_fatal, vha, 0xb0fe, 2686 "%s: TIMEOUT\n", __func__); 2687 goto error; 2688 } 2689 } 2690 } 2691 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2692 *data_ptr++ = s_value; 2693 *data_ptr++ = r_value; 2694 2695 s_value += s_stride; 2696 } 2697 *d_ptr = data_ptr; 2698 return QLA_SUCCESS; 2699 2700 error: 2701 return QLA_FUNCTION_FAILED; 2702 } 2703 2704 static void 2705 qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha, 2706 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2707 { 2708 uint32_t sel_val1, sel_val2, t_sel_val, data, i; 2709 uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr; 2710 struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr; 2711 uint32_t *data_ptr = *d_ptr; 2712 2713 rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr; 2714 sel_val1 = rdmux2_hdr->select_value_1; 2715 sel_val2 = rdmux2_hdr->select_value_2; 2716 sel_addr1 = rdmux2_hdr->select_addr_1; 2717 sel_addr2 = rdmux2_hdr->select_addr_2; 2718 sel_val_mask = rdmux2_hdr->select_value_mask; 2719 read_addr = rdmux2_hdr->read_addr; 2720 2721 for (i = 0; i < rdmux2_hdr->op_count; i++) { 2722 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1); 2723 t_sel_val = sel_val1 & sel_val_mask; 2724 *data_ptr++ = t_sel_val; 2725 2726 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); 2727 qla8044_rd_reg_indirect(vha, read_addr, &data); 2728 2729 *data_ptr++ = data; 2730 2731 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2); 2732 t_sel_val = sel_val2 & sel_val_mask; 2733 *data_ptr++ = t_sel_val; 2734 2735 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); 2736 qla8044_rd_reg_indirect(vha, read_addr, &data); 2737 2738 *data_ptr++ = data; 2739 2740 sel_val1 += rdmux2_hdr->select_value_stride; 2741 sel_val2 += rdmux2_hdr->select_value_stride; 2742 } 2743 2744 *d_ptr = data_ptr; 2745 } 2746 2747 static uint32_t 2748 qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha, 2749 struct qla8044_minidump_entry_hdr *entry_hdr, 2750 uint32_t **d_ptr) 2751 { 2752 uint32_t poll_wait, poll_mask, r_value, data; 2753 uint32_t addr_1, addr_2, value_1, value_2; 2754 struct qla8044_minidump_entry_pollrdmwr *poll_hdr; 2755 uint32_t *data_ptr = *d_ptr; 2756 2757 poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr; 2758 addr_1 = poll_hdr->addr_1; 2759 addr_2 = poll_hdr->addr_2; 2760 value_1 = poll_hdr->value_1; 2761 value_2 = poll_hdr->value_2; 2762 poll_mask = poll_hdr->poll_mask; 2763 2764 qla8044_wr_reg_indirect(vha, addr_1, value_1); 2765 2766 poll_wait = poll_hdr->poll_wait; 2767 while (1) { 2768 qla8044_rd_reg_indirect(vha, addr_1, &r_value); 2769 2770 if ((r_value & poll_mask) != 0) { 2771 break; 2772 } else { 2773 usleep_range(1000, 1100); 2774 if (--poll_wait == 0) { 2775 ql_log(ql_log_fatal, vha, 0xb0ff, 2776 "%s: TIMEOUT\n", __func__); 2777 goto error; 2778 } 2779 } 2780 } 2781 2782 qla8044_rd_reg_indirect(vha, addr_2, &data); 2783 data &= poll_hdr->modify_mask; 2784 qla8044_wr_reg_indirect(vha, addr_2, data); 2785 qla8044_wr_reg_indirect(vha, addr_1, value_2); 2786 2787 poll_wait = poll_hdr->poll_wait; 2788 while (1) { 2789 qla8044_rd_reg_indirect(vha, addr_1, &r_value); 2790 2791 if ((r_value & poll_mask) != 0) { 2792 break; 2793 } else { 2794 usleep_range(1000, 1100); 2795 if (--poll_wait == 0) { 2796 ql_log(ql_log_fatal, vha, 0xb100, 2797 "%s: TIMEOUT2\n", __func__); 2798 goto error; 2799 } 2800 } 2801 } 2802 2803 *data_ptr++ = addr_2; 2804 *data_ptr++ = data; 2805 2806 *d_ptr = data_ptr; 2807 2808 return QLA_SUCCESS; 2809 2810 error: 2811 return QLA_FUNCTION_FAILED; 2812 } 2813 2814 #define ISP8044_PEX_DMA_ENGINE_INDEX 8 2815 #define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000 2816 #define ISP8044_PEX_DMA_NUM_OFFSET 0x10000 2817 #define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0 2818 #define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04 2819 #define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08 2820 2821 #define ISP8044_PEX_DMA_READ_SIZE (16 * 1024) 2822 #define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */ 2823 2824 static int 2825 qla8044_check_dma_engine_state(struct scsi_qla_host *vha) 2826 { 2827 struct qla_hw_data *ha = vha->hw; 2828 int rval = QLA_SUCCESS; 2829 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; 2830 uint64_t dma_base_addr = 0; 2831 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; 2832 2833 tmplt_hdr = ha->md_tmplt_hdr; 2834 dma_eng_num = 2835 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; 2836 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + 2837 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); 2838 2839 /* Read the pex-dma's command-status-and-control register. */ 2840 rval = qla8044_rd_reg_indirect(vha, 2841 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), 2842 &cmd_sts_and_cntrl); 2843 if (rval) 2844 return QLA_FUNCTION_FAILED; 2845 2846 /* Check if requested pex-dma engine is available. */ 2847 if (cmd_sts_and_cntrl & BIT_31) 2848 return QLA_SUCCESS; 2849 2850 return QLA_FUNCTION_FAILED; 2851 } 2852 2853 static int 2854 qla8044_start_pex_dma(struct scsi_qla_host *vha, 2855 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr) 2856 { 2857 struct qla_hw_data *ha = vha->hw; 2858 int rval = QLA_SUCCESS, wait = 0; 2859 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; 2860 uint64_t dma_base_addr = 0; 2861 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; 2862 2863 tmplt_hdr = ha->md_tmplt_hdr; 2864 dma_eng_num = 2865 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; 2866 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + 2867 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); 2868 2869 rval = qla8044_wr_reg_indirect(vha, 2870 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW, 2871 m_hdr->desc_card_addr); 2872 if (rval) 2873 goto error_exit; 2874 2875 rval = qla8044_wr_reg_indirect(vha, 2876 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0); 2877 if (rval) 2878 goto error_exit; 2879 2880 rval = qla8044_wr_reg_indirect(vha, 2881 dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL, 2882 m_hdr->start_dma_cmd); 2883 if (rval) 2884 goto error_exit; 2885 2886 /* Wait for dma operation to complete. */ 2887 for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) { 2888 rval = qla8044_rd_reg_indirect(vha, 2889 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), 2890 &cmd_sts_and_cntrl); 2891 if (rval) 2892 goto error_exit; 2893 2894 if ((cmd_sts_and_cntrl & BIT_1) == 0) 2895 break; 2896 2897 udelay(10); 2898 } 2899 2900 /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */ 2901 if (wait >= ISP8044_PEX_DMA_MAX_WAIT) { 2902 rval = QLA_FUNCTION_FAILED; 2903 goto error_exit; 2904 } 2905 2906 error_exit: 2907 return rval; 2908 } 2909 2910 static int 2911 qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha, 2912 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2913 { 2914 struct qla_hw_data *ha = vha->hw; 2915 int rval = QLA_SUCCESS; 2916 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL; 2917 uint32_t chunk_size, read_size; 2918 uint8_t *data_ptr = (uint8_t *)*d_ptr; 2919 void *rdmem_buffer = NULL; 2920 dma_addr_t rdmem_dma; 2921 struct qla8044_pex_dma_descriptor dma_desc; 2922 2923 rval = qla8044_check_dma_engine_state(vha); 2924 if (rval != QLA_SUCCESS) { 2925 ql_dbg(ql_dbg_p3p, vha, 0xb147, 2926 "DMA engine not available. Fallback to rdmem-read.\n"); 2927 return QLA_FUNCTION_FAILED; 2928 } 2929 2930 m_hdr = (void *)entry_hdr; 2931 2932 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, 2933 ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL); 2934 if (!rdmem_buffer) { 2935 ql_dbg(ql_dbg_p3p, vha, 0xb148, 2936 "Unable to allocate rdmem dma buffer\n"); 2937 return QLA_FUNCTION_FAILED; 2938 } 2939 2940 /* Prepare pex-dma descriptor to be written to MS memory. */ 2941 /* dma-desc-cmd layout: 2942 * 0-3: dma-desc-cmd 0-3 2943 * 4-7: pcid function number 2944 * 8-15: dma-desc-cmd 8-15 2945 * dma_bus_addr: dma buffer address 2946 * cmd.read_data_size: amount of data-chunk to be read. 2947 */ 2948 dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f); 2949 dma_desc.cmd.dma_desc_cmd |= 2950 ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4); 2951 2952 dma_desc.dma_bus_addr = rdmem_dma; 2953 dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE; 2954 read_size = 0; 2955 2956 /* 2957 * Perform rdmem operation using pex-dma. 2958 * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE. 2959 */ 2960 while (read_size < m_hdr->read_data_size) { 2961 if (m_hdr->read_data_size - read_size < 2962 ISP8044_PEX_DMA_READ_SIZE) { 2963 chunk_size = (m_hdr->read_data_size - read_size); 2964 dma_desc.cmd.read_data_size = chunk_size; 2965 } 2966 2967 dma_desc.src_addr = m_hdr->read_addr + read_size; 2968 2969 /* Prepare: Write pex-dma descriptor to MS memory. */ 2970 rval = qla8044_ms_mem_write_128b(vha, 2971 m_hdr->desc_card_addr, (void *)&dma_desc, 2972 (sizeof(struct qla8044_pex_dma_descriptor)/16)); 2973 if (rval) { 2974 ql_log(ql_log_warn, vha, 0xb14a, 2975 "%s: Error writing rdmem-dma-init to MS !!!\n", 2976 __func__); 2977 goto error_exit; 2978 } 2979 ql_dbg(ql_dbg_p3p, vha, 0xb14b, 2980 "%s: Dma-descriptor: Instruct for rdmem dma " 2981 "(chunk_size 0x%x).\n", __func__, chunk_size); 2982 2983 /* Execute: Start pex-dma operation. */ 2984 rval = qla8044_start_pex_dma(vha, m_hdr); 2985 if (rval) 2986 goto error_exit; 2987 2988 memcpy(data_ptr, rdmem_buffer, chunk_size); 2989 data_ptr += chunk_size; 2990 read_size += chunk_size; 2991 } 2992 2993 *d_ptr = (void *)data_ptr; 2994 2995 error_exit: 2996 if (rdmem_buffer) 2997 dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE, 2998 rdmem_buffer, rdmem_dma); 2999 3000 return rval; 3001 } 3002 3003 static uint32_t 3004 qla8044_minidump_process_rddfe(struct scsi_qla_host *vha, 3005 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 3006 { 3007 int loop_cnt; 3008 uint32_t addr1, addr2, value, data, temp, wrVal; 3009 uint8_t stride, stride2; 3010 uint16_t count; 3011 uint32_t poll, mask, modify_mask; 3012 uint32_t wait_count = 0; 3013 3014 uint32_t *data_ptr = *d_ptr; 3015 3016 struct qla8044_minidump_entry_rddfe *rddfe; 3017 rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr; 3018 3019 addr1 = rddfe->addr_1; 3020 value = rddfe->value; 3021 stride = rddfe->stride; 3022 stride2 = rddfe->stride2; 3023 count = rddfe->count; 3024 3025 poll = rddfe->poll; 3026 mask = rddfe->mask; 3027 modify_mask = rddfe->modify_mask; 3028 3029 addr2 = addr1 + stride; 3030 3031 for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) { 3032 qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value)); 3033 3034 wait_count = 0; 3035 while (wait_count < poll) { 3036 qla8044_rd_reg_indirect(vha, addr1, &temp); 3037 if ((temp & mask) != 0) 3038 break; 3039 wait_count++; 3040 } 3041 3042 if (wait_count == poll) { 3043 ql_log(ql_log_warn, vha, 0xb153, 3044 "%s: TIMEOUT\n", __func__); 3045 goto error; 3046 } else { 3047 qla8044_rd_reg_indirect(vha, addr2, &temp); 3048 temp = temp & modify_mask; 3049 temp = (temp | ((loop_cnt << 16) | loop_cnt)); 3050 wrVal = ((temp << 16) | temp); 3051 3052 qla8044_wr_reg_indirect(vha, addr2, wrVal); 3053 qla8044_wr_reg_indirect(vha, addr1, value); 3054 3055 wait_count = 0; 3056 while (wait_count < poll) { 3057 qla8044_rd_reg_indirect(vha, addr1, &temp); 3058 if ((temp & mask) != 0) 3059 break; 3060 wait_count++; 3061 } 3062 if (wait_count == poll) { 3063 ql_log(ql_log_warn, vha, 0xb154, 3064 "%s: TIMEOUT\n", __func__); 3065 goto error; 3066 } 3067 3068 qla8044_wr_reg_indirect(vha, addr1, 3069 ((0x40000000 | value) + stride2)); 3070 wait_count = 0; 3071 while (wait_count < poll) { 3072 qla8044_rd_reg_indirect(vha, addr1, &temp); 3073 if ((temp & mask) != 0) 3074 break; 3075 wait_count++; 3076 } 3077 3078 if (wait_count == poll) { 3079 ql_log(ql_log_warn, vha, 0xb155, 3080 "%s: TIMEOUT\n", __func__); 3081 goto error; 3082 } 3083 3084 qla8044_rd_reg_indirect(vha, addr2, &data); 3085 3086 *data_ptr++ = wrVal; 3087 *data_ptr++ = data; 3088 } 3089 3090 } 3091 3092 *d_ptr = data_ptr; 3093 return QLA_SUCCESS; 3094 3095 error: 3096 return -1; 3097 3098 } 3099 3100 static uint32_t 3101 qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha, 3102 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 3103 { 3104 int ret = 0; 3105 uint32_t addr1, addr2, value1, value2, data, selVal; 3106 uint8_t stride1, stride2; 3107 uint32_t addr3, addr4, addr5, addr6, addr7; 3108 uint16_t count, loop_cnt; 3109 uint32_t mask; 3110 uint32_t *data_ptr = *d_ptr; 3111 3112 struct qla8044_minidump_entry_rdmdio *rdmdio; 3113 3114 rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr; 3115 3116 addr1 = rdmdio->addr_1; 3117 addr2 = rdmdio->addr_2; 3118 value1 = rdmdio->value_1; 3119 stride1 = rdmdio->stride_1; 3120 stride2 = rdmdio->stride_2; 3121 count = rdmdio->count; 3122 3123 mask = rdmdio->mask; 3124 value2 = rdmdio->value_2; 3125 3126 addr3 = addr1 + stride1; 3127 3128 for (loop_cnt = 0; loop_cnt < count; loop_cnt++) { 3129 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2, 3130 addr3, mask); 3131 if (ret == -1) 3132 goto error; 3133 3134 addr4 = addr2 - stride1; 3135 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4, 3136 value2); 3137 if (ret == -1) 3138 goto error; 3139 3140 addr5 = addr2 - (2 * stride1); 3141 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5, 3142 value1); 3143 if (ret == -1) 3144 goto error; 3145 3146 addr6 = addr2 - (3 * stride1); 3147 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, 3148 addr6, 0x2); 3149 if (ret == -1) 3150 goto error; 3151 3152 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2, 3153 addr3, mask); 3154 if (ret == -1) 3155 goto error; 3156 3157 addr7 = addr2 - (4 * stride1); 3158 data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7); 3159 if (data == -1) 3160 goto error; 3161 3162 selVal = (value2 << 18) | (value1 << 2) | 2; 3163 3164 stride2 = rdmdio->stride_2; 3165 *data_ptr++ = selVal; 3166 *data_ptr++ = data; 3167 3168 value1 = value1 + stride2; 3169 *d_ptr = data_ptr; 3170 } 3171 3172 return 0; 3173 3174 error: 3175 return -1; 3176 } 3177 3178 static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha, 3179 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 3180 { 3181 uint32_t addr1, addr2, value1, value2, poll, r_value; 3182 uint32_t wait_count = 0; 3183 struct qla8044_minidump_entry_pollwr *pollwr_hdr; 3184 3185 pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr; 3186 addr1 = pollwr_hdr->addr_1; 3187 addr2 = pollwr_hdr->addr_2; 3188 value1 = pollwr_hdr->value_1; 3189 value2 = pollwr_hdr->value_2; 3190 3191 poll = pollwr_hdr->poll; 3192 3193 while (wait_count < poll) { 3194 qla8044_rd_reg_indirect(vha, addr1, &r_value); 3195 3196 if ((r_value & poll) != 0) 3197 break; 3198 wait_count++; 3199 } 3200 3201 if (wait_count == poll) { 3202 ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__); 3203 goto error; 3204 } 3205 3206 qla8044_wr_reg_indirect(vha, addr2, value2); 3207 qla8044_wr_reg_indirect(vha, addr1, value1); 3208 3209 wait_count = 0; 3210 while (wait_count < poll) { 3211 qla8044_rd_reg_indirect(vha, addr1, &r_value); 3212 3213 if ((r_value & poll) != 0) 3214 break; 3215 wait_count++; 3216 } 3217 3218 return QLA_SUCCESS; 3219 3220 error: 3221 return -1; 3222 } 3223 3224 /* 3225 * 3226 * qla8044_collect_md_data - Retrieve firmware minidump data. 3227 * @ha: pointer to adapter structure 3228 **/ 3229 int 3230 qla8044_collect_md_data(struct scsi_qla_host *vha) 3231 { 3232 int num_entry_hdr = 0; 3233 struct qla8044_minidump_entry_hdr *entry_hdr; 3234 struct qla8044_minidump_template_hdr *tmplt_hdr; 3235 uint32_t *data_ptr; 3236 uint32_t data_collected = 0, f_capture_mask; 3237 int i, rval = QLA_FUNCTION_FAILED; 3238 uint64_t now; 3239 uint32_t timestamp, idc_control; 3240 struct qla_hw_data *ha = vha->hw; 3241 3242 if (!ha->md_dump) { 3243 ql_log(ql_log_info, vha, 0xb101, 3244 "%s(%ld) No buffer to dump\n", 3245 __func__, vha->host_no); 3246 return rval; 3247 } 3248 3249 if (ha->fw_dumped) { 3250 ql_log(ql_log_warn, vha, 0xb10d, 3251 "Firmware has been previously dumped (%p) " 3252 "-- ignoring request.\n", ha->fw_dump); 3253 goto md_failed; 3254 } 3255 3256 ha->fw_dumped = 0; 3257 3258 if (!ha->md_tmplt_hdr || !ha->md_dump) { 3259 ql_log(ql_log_warn, vha, 0xb10e, 3260 "Memory not allocated for minidump capture\n"); 3261 goto md_failed; 3262 } 3263 3264 qla8044_idc_lock(ha); 3265 idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 3266 if (idc_control & GRACEFUL_RESET_BIT1) { 3267 ql_log(ql_log_warn, vha, 0xb112, 3268 "Forced reset from application, " 3269 "ignore minidump capture\n"); 3270 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, 3271 (idc_control & ~GRACEFUL_RESET_BIT1)); 3272 qla8044_idc_unlock(ha); 3273 3274 goto md_failed; 3275 } 3276 qla8044_idc_unlock(ha); 3277 3278 if (qla82xx_validate_template_chksum(vha)) { 3279 ql_log(ql_log_info, vha, 0xb109, 3280 "Template checksum validation error\n"); 3281 goto md_failed; 3282 } 3283 3284 tmplt_hdr = (struct qla8044_minidump_template_hdr *) 3285 ha->md_tmplt_hdr; 3286 data_ptr = (uint32_t *)((uint8_t *)ha->md_dump); 3287 num_entry_hdr = tmplt_hdr->num_of_entries; 3288 3289 ql_dbg(ql_dbg_p3p, vha, 0xb11a, 3290 "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level); 3291 3292 f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF; 3293 3294 /* Validate whether required debug level is set */ 3295 if ((f_capture_mask & 0x3) != 0x3) { 3296 ql_log(ql_log_warn, vha, 0xb10f, 3297 "Minimum required capture mask[0x%x] level not set\n", 3298 f_capture_mask); 3299 3300 } 3301 tmplt_hdr->driver_capture_mask = ql2xmdcapmask; 3302 ql_log(ql_log_info, vha, 0xb102, 3303 "[%s]: starting data ptr: %p\n", 3304 __func__, data_ptr); 3305 ql_log(ql_log_info, vha, 0xb10b, 3306 "[%s]: no of entry headers in Template: 0x%x\n", 3307 __func__, num_entry_hdr); 3308 ql_log(ql_log_info, vha, 0xb10c, 3309 "[%s]: Total_data_size 0x%x, %d obtained\n", 3310 __func__, ha->md_dump_size, ha->md_dump_size); 3311 3312 /* Update current timestamp before taking dump */ 3313 now = get_jiffies_64(); 3314 timestamp = (u32)(jiffies_to_msecs(now) / 1000); 3315 tmplt_hdr->driver_timestamp = timestamp; 3316 3317 entry_hdr = (struct qla8044_minidump_entry_hdr *) 3318 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset); 3319 tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] = 3320 tmplt_hdr->ocm_window_reg[ha->portnum]; 3321 3322 /* Walk through the entry headers - validate/perform required action */ 3323 for (i = 0; i < num_entry_hdr; i++) { 3324 if (data_collected > ha->md_dump_size) { 3325 ql_log(ql_log_info, vha, 0xb103, 3326 "Data collected: [0x%x], " 3327 "Total Dump size: [0x%x]\n", 3328 data_collected, ha->md_dump_size); 3329 return rval; 3330 } 3331 3332 if (!(entry_hdr->d_ctrl.entry_capture_mask & 3333 ql2xmdcapmask)) { 3334 entry_hdr->d_ctrl.driver_flags |= 3335 QLA82XX_DBG_SKIPPED_FLAG; 3336 goto skip_nxt_entry; 3337 } 3338 3339 ql_dbg(ql_dbg_p3p, vha, 0xb104, 3340 "Data collected: [0x%x], Dump size left:[0x%x]\n", 3341 data_collected, 3342 (ha->md_dump_size - data_collected)); 3343 3344 /* Decode the entry type and take required action to capture 3345 * debug data 3346 */ 3347 switch (entry_hdr->entry_type) { 3348 case QLA82XX_RDEND: 3349 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3350 break; 3351 case QLA82XX_CNTRL: 3352 rval = qla8044_minidump_process_control(vha, 3353 entry_hdr); 3354 if (rval != QLA_SUCCESS) { 3355 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3356 goto md_failed; 3357 } 3358 break; 3359 case QLA82XX_RDCRB: 3360 qla8044_minidump_process_rdcrb(vha, 3361 entry_hdr, &data_ptr); 3362 break; 3363 case QLA82XX_RDMEM: 3364 rval = qla8044_minidump_pex_dma_read(vha, 3365 entry_hdr, &data_ptr); 3366 if (rval != QLA_SUCCESS) { 3367 rval = qla8044_minidump_process_rdmem(vha, 3368 entry_hdr, &data_ptr); 3369 if (rval != QLA_SUCCESS) { 3370 qla8044_mark_entry_skipped(vha, 3371 entry_hdr, i); 3372 goto md_failed; 3373 } 3374 } 3375 break; 3376 case QLA82XX_BOARD: 3377 case QLA82XX_RDROM: 3378 rval = qla8044_minidump_process_rdrom(vha, 3379 entry_hdr, &data_ptr); 3380 if (rval != QLA_SUCCESS) { 3381 qla8044_mark_entry_skipped(vha, 3382 entry_hdr, i); 3383 } 3384 break; 3385 case QLA82XX_L2DTG: 3386 case QLA82XX_L2ITG: 3387 case QLA82XX_L2DAT: 3388 case QLA82XX_L2INS: 3389 rval = qla8044_minidump_process_l2tag(vha, 3390 entry_hdr, &data_ptr); 3391 if (rval != QLA_SUCCESS) { 3392 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3393 goto md_failed; 3394 } 3395 break; 3396 case QLA8044_L1DTG: 3397 case QLA8044_L1ITG: 3398 case QLA82XX_L1DAT: 3399 case QLA82XX_L1INS: 3400 qla8044_minidump_process_l1cache(vha, 3401 entry_hdr, &data_ptr); 3402 break; 3403 case QLA82XX_RDOCM: 3404 qla8044_minidump_process_rdocm(vha, 3405 entry_hdr, &data_ptr); 3406 break; 3407 case QLA82XX_RDMUX: 3408 qla8044_minidump_process_rdmux(vha, 3409 entry_hdr, &data_ptr); 3410 break; 3411 case QLA82XX_QUEUE: 3412 qla8044_minidump_process_queue(vha, 3413 entry_hdr, &data_ptr); 3414 break; 3415 case QLA8044_POLLRD: 3416 rval = qla8044_minidump_process_pollrd(vha, 3417 entry_hdr, &data_ptr); 3418 if (rval != QLA_SUCCESS) 3419 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3420 break; 3421 case QLA8044_RDMUX2: 3422 qla8044_minidump_process_rdmux2(vha, 3423 entry_hdr, &data_ptr); 3424 break; 3425 case QLA8044_POLLRDMWR: 3426 rval = qla8044_minidump_process_pollrdmwr(vha, 3427 entry_hdr, &data_ptr); 3428 if (rval != QLA_SUCCESS) 3429 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3430 break; 3431 case QLA8044_RDDFE: 3432 rval = qla8044_minidump_process_rddfe(vha, entry_hdr, 3433 &data_ptr); 3434 if (rval != QLA_SUCCESS) 3435 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3436 break; 3437 case QLA8044_RDMDIO: 3438 rval = qla8044_minidump_process_rdmdio(vha, entry_hdr, 3439 &data_ptr); 3440 if (rval != QLA_SUCCESS) 3441 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3442 break; 3443 case QLA8044_POLLWR: 3444 rval = qla8044_minidump_process_pollwr(vha, entry_hdr, 3445 &data_ptr); 3446 if (rval != QLA_SUCCESS) 3447 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3448 break; 3449 case QLA82XX_RDNOP: 3450 default: 3451 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3452 break; 3453 } 3454 3455 data_collected = (uint8_t *)data_ptr - 3456 (uint8_t *)((uint8_t *)ha->md_dump); 3457 skip_nxt_entry: 3458 /* 3459 * next entry in the template 3460 */ 3461 entry_hdr = (struct qla8044_minidump_entry_hdr *) 3462 (((uint8_t *)entry_hdr) + entry_hdr->entry_size); 3463 } 3464 3465 if (data_collected != ha->md_dump_size) { 3466 ql_log(ql_log_info, vha, 0xb105, 3467 "Dump data mismatch: Data collected: " 3468 "[0x%x], total_data_size:[0x%x]\n", 3469 data_collected, ha->md_dump_size); 3470 rval = QLA_FUNCTION_FAILED; 3471 goto md_failed; 3472 } 3473 3474 ql_log(ql_log_info, vha, 0xb110, 3475 "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n", 3476 vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump); 3477 ha->fw_dumped = 1; 3478 qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP); 3479 3480 3481 ql_log(ql_log_info, vha, 0xb106, 3482 "Leaving fn: %s Last entry: 0x%x\n", 3483 __func__, i); 3484 md_failed: 3485 return rval; 3486 } 3487 3488 void 3489 qla8044_get_minidump(struct scsi_qla_host *vha) 3490 { 3491 struct qla_hw_data *ha = vha->hw; 3492 3493 if (!qla8044_collect_md_data(vha)) { 3494 ha->fw_dumped = 1; 3495 ha->prev_minidump_failed = 0; 3496 } else { 3497 ql_log(ql_log_fatal, vha, 0xb0db, 3498 "%s: Unable to collect minidump\n", 3499 __func__); 3500 ha->prev_minidump_failed = 1; 3501 } 3502 } 3503 3504 static int 3505 qla8044_poll_flash_status_reg(struct scsi_qla_host *vha) 3506 { 3507 uint32_t flash_status; 3508 int retries = QLA8044_FLASH_READ_RETRY_COUNT; 3509 int ret_val = QLA_SUCCESS; 3510 3511 while (retries--) { 3512 ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS, 3513 &flash_status); 3514 if (ret_val) { 3515 ql_log(ql_log_warn, vha, 0xb13c, 3516 "%s: Failed to read FLASH_STATUS reg.\n", 3517 __func__); 3518 break; 3519 } 3520 if ((flash_status & QLA8044_FLASH_STATUS_READY) == 3521 QLA8044_FLASH_STATUS_READY) 3522 break; 3523 msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY); 3524 } 3525 3526 if (!retries) 3527 ret_val = QLA_FUNCTION_FAILED; 3528 3529 return ret_val; 3530 } 3531 3532 static int 3533 qla8044_write_flash_status_reg(struct scsi_qla_host *vha, 3534 uint32_t data) 3535 { 3536 int ret_val = QLA_SUCCESS; 3537 uint32_t cmd; 3538 3539 cmd = vha->hw->fdt_wrt_sts_reg_cmd; 3540 3541 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3542 QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd); 3543 if (ret_val) { 3544 ql_log(ql_log_warn, vha, 0xb125, 3545 "%s: Failed to write to FLASH_ADDR.\n", __func__); 3546 goto exit_func; 3547 } 3548 3549 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data); 3550 if (ret_val) { 3551 ql_log(ql_log_warn, vha, 0xb126, 3552 "%s: Failed to write to FLASH_WRDATA.\n", __func__); 3553 goto exit_func; 3554 } 3555 3556 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3557 QLA8044_FLASH_SECOND_ERASE_MS_VAL); 3558 if (ret_val) { 3559 ql_log(ql_log_warn, vha, 0xb127, 3560 "%s: Failed to write to FLASH_CONTROL.\n", __func__); 3561 goto exit_func; 3562 } 3563 3564 ret_val = qla8044_poll_flash_status_reg(vha); 3565 if (ret_val) 3566 ql_log(ql_log_warn, vha, 0xb128, 3567 "%s: Error polling flash status reg.\n", __func__); 3568 3569 exit_func: 3570 return ret_val; 3571 } 3572 3573 /* 3574 * This function assumes that the flash lock is held. 3575 */ 3576 static int 3577 qla8044_unprotect_flash(scsi_qla_host_t *vha) 3578 { 3579 int ret_val; 3580 struct qla_hw_data *ha = vha->hw; 3581 3582 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable); 3583 if (ret_val) 3584 ql_log(ql_log_warn, vha, 0xb139, 3585 "%s: Write flash status failed.\n", __func__); 3586 3587 return ret_val; 3588 } 3589 3590 /* 3591 * This function assumes that the flash lock is held. 3592 */ 3593 static int 3594 qla8044_protect_flash(scsi_qla_host_t *vha) 3595 { 3596 int ret_val; 3597 struct qla_hw_data *ha = vha->hw; 3598 3599 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable); 3600 if (ret_val) 3601 ql_log(ql_log_warn, vha, 0xb13b, 3602 "%s: Write flash status failed.\n", __func__); 3603 3604 return ret_val; 3605 } 3606 3607 3608 static int 3609 qla8044_erase_flash_sector(struct scsi_qla_host *vha, 3610 uint32_t sector_start_addr) 3611 { 3612 uint32_t reversed_addr; 3613 int ret_val = QLA_SUCCESS; 3614 3615 ret_val = qla8044_poll_flash_status_reg(vha); 3616 if (ret_val) { 3617 ql_log(ql_log_warn, vha, 0xb12e, 3618 "%s: Poll flash status after erase failed..\n", __func__); 3619 } 3620 3621 reversed_addr = (((sector_start_addr & 0xFF) << 16) | 3622 (sector_start_addr & 0xFF00) | 3623 ((sector_start_addr & 0xFF0000) >> 16)); 3624 3625 ret_val = qla8044_wr_reg_indirect(vha, 3626 QLA8044_FLASH_WRDATA, reversed_addr); 3627 if (ret_val) { 3628 ql_log(ql_log_warn, vha, 0xb12f, 3629 "%s: Failed to write to FLASH_WRDATA.\n", __func__); 3630 } 3631 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3632 QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd); 3633 if (ret_val) { 3634 ql_log(ql_log_warn, vha, 0xb130, 3635 "%s: Failed to write to FLASH_ADDR.\n", __func__); 3636 } 3637 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3638 QLA8044_FLASH_LAST_ERASE_MS_VAL); 3639 if (ret_val) { 3640 ql_log(ql_log_warn, vha, 0xb131, 3641 "%s: Failed write to FLASH_CONTROL.\n", __func__); 3642 } 3643 ret_val = qla8044_poll_flash_status_reg(vha); 3644 if (ret_val) { 3645 ql_log(ql_log_warn, vha, 0xb132, 3646 "%s: Poll flash status failed.\n", __func__); 3647 } 3648 3649 3650 return ret_val; 3651 } 3652 3653 /* 3654 * qla8044_flash_write_u32 - Write data to flash 3655 * 3656 * @ha : Pointer to adapter structure 3657 * addr : Flash address to write to 3658 * p_data : Data to be written 3659 * 3660 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 3661 * 3662 * NOTE: Lock should be held on entry 3663 */ 3664 static int 3665 qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr, 3666 uint32_t *p_data) 3667 { 3668 int ret_val = QLA_SUCCESS; 3669 3670 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3671 0x00800000 | (addr >> 2)); 3672 if (ret_val) { 3673 ql_log(ql_log_warn, vha, 0xb134, 3674 "%s: Failed write to FLASH_ADDR.\n", __func__); 3675 goto exit_func; 3676 } 3677 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data); 3678 if (ret_val) { 3679 ql_log(ql_log_warn, vha, 0xb135, 3680 "%s: Failed write to FLASH_WRDATA.\n", __func__); 3681 goto exit_func; 3682 } 3683 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D); 3684 if (ret_val) { 3685 ql_log(ql_log_warn, vha, 0xb136, 3686 "%s: Failed write to FLASH_CONTROL.\n", __func__); 3687 goto exit_func; 3688 } 3689 ret_val = qla8044_poll_flash_status_reg(vha); 3690 if (ret_val) { 3691 ql_log(ql_log_warn, vha, 0xb137, 3692 "%s: Poll flash status failed.\n", __func__); 3693 } 3694 3695 exit_func: 3696 return ret_val; 3697 } 3698 3699 static int 3700 qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr, 3701 uint32_t faddr, uint32_t dwords) 3702 { 3703 int ret = QLA_FUNCTION_FAILED; 3704 uint32_t spi_val; 3705 3706 if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS || 3707 dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) { 3708 ql_dbg(ql_dbg_user, vha, 0xb123, 3709 "Got unsupported dwords = 0x%x.\n", 3710 dwords); 3711 return QLA_FUNCTION_FAILED; 3712 } 3713 3714 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val); 3715 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3716 spi_val | QLA8044_FLASH_SPI_CTL); 3717 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3718 QLA8044_FLASH_FIRST_TEMP_VAL); 3719 3720 /* First DWORD write to FLASH_WRDATA */ 3721 ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, 3722 *dwptr++); 3723 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3724 QLA8044_FLASH_FIRST_MS_PATTERN); 3725 3726 ret = qla8044_poll_flash_status_reg(vha); 3727 if (ret) { 3728 ql_log(ql_log_warn, vha, 0xb124, 3729 "%s: Failed.\n", __func__); 3730 goto exit_func; 3731 } 3732 3733 dwords--; 3734 3735 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3736 QLA8044_FLASH_SECOND_TEMP_VAL); 3737 3738 3739 /* Second to N-1 DWORDS writes */ 3740 while (dwords != 1) { 3741 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); 3742 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3743 QLA8044_FLASH_SECOND_MS_PATTERN); 3744 ret = qla8044_poll_flash_status_reg(vha); 3745 if (ret) { 3746 ql_log(ql_log_warn, vha, 0xb129, 3747 "%s: Failed.\n", __func__); 3748 goto exit_func; 3749 } 3750 dwords--; 3751 } 3752 3753 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3754 QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2)); 3755 3756 /* Last DWORD write */ 3757 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); 3758 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3759 QLA8044_FLASH_LAST_MS_PATTERN); 3760 ret = qla8044_poll_flash_status_reg(vha); 3761 if (ret) { 3762 ql_log(ql_log_warn, vha, 0xb12a, 3763 "%s: Failed.\n", __func__); 3764 goto exit_func; 3765 } 3766 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val); 3767 3768 if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) { 3769 ql_log(ql_log_warn, vha, 0xb12b, 3770 "%s: Failed.\n", __func__); 3771 spi_val = 0; 3772 /* Operation failed, clear error bit. */ 3773 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3774 &spi_val); 3775 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3776 spi_val | QLA8044_FLASH_SPI_CTL); 3777 } 3778 exit_func: 3779 return ret; 3780 } 3781 3782 static int 3783 qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr, 3784 uint32_t faddr, uint32_t dwords) 3785 { 3786 int ret = QLA_FUNCTION_FAILED; 3787 uint32_t liter; 3788 3789 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) { 3790 ret = qla8044_flash_write_u32(vha, faddr, dwptr); 3791 if (ret) { 3792 ql_dbg(ql_dbg_p3p, vha, 0xb141, 3793 "%s: flash address=%x data=%x.\n", __func__, 3794 faddr, *dwptr); 3795 break; 3796 } 3797 } 3798 3799 return ret; 3800 } 3801 3802 int 3803 qla8044_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 3804 uint32_t offset, uint32_t length) 3805 { 3806 int rval = QLA_FUNCTION_FAILED, i, burst_iter_count; 3807 int dword_count, erase_sec_count; 3808 uint32_t erase_offset; 3809 uint8_t *p_cache, *p_src; 3810 3811 erase_offset = offset; 3812 3813 p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL); 3814 if (!p_cache) 3815 return QLA_FUNCTION_FAILED; 3816 3817 memcpy(p_cache, buf, length); 3818 p_src = p_cache; 3819 dword_count = length / sizeof(uint32_t); 3820 /* Since the offset and legth are sector aligned, it will be always 3821 * multiple of burst_iter_count (64) 3822 */ 3823 burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS; 3824 erase_sec_count = length / QLA8044_SECTOR_SIZE; 3825 3826 /* Suspend HBA. */ 3827 scsi_block_requests(vha->host); 3828 /* Lock and enable write for whole operation. */ 3829 qla8044_flash_lock(vha); 3830 qla8044_unprotect_flash(vha); 3831 3832 /* Erasing the sectors */ 3833 for (i = 0; i < erase_sec_count; i++) { 3834 rval = qla8044_erase_flash_sector(vha, erase_offset); 3835 ql_dbg(ql_dbg_user, vha, 0xb138, 3836 "Done erase of sector=0x%x.\n", 3837 erase_offset); 3838 if (rval) { 3839 ql_log(ql_log_warn, vha, 0xb121, 3840 "Failed to erase the sector having address: " 3841 "0x%x.\n", erase_offset); 3842 goto out; 3843 } 3844 erase_offset += QLA8044_SECTOR_SIZE; 3845 } 3846 ql_dbg(ql_dbg_user, vha, 0xb13f, 3847 "Got write for addr = 0x%x length=0x%x.\n", 3848 offset, length); 3849 3850 for (i = 0; i < burst_iter_count; i++) { 3851 3852 /* Go with write. */ 3853 rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src, 3854 offset, QLA8044_MAX_OPTROM_BURST_DWORDS); 3855 if (rval) { 3856 /* Buffer Mode failed skip to dword mode */ 3857 ql_log(ql_log_warn, vha, 0xb122, 3858 "Failed to write flash in buffer mode, " 3859 "Reverting to slow-write.\n"); 3860 rval = qla8044_write_flash_dword_mode(vha, 3861 (uint32_t *)p_src, offset, 3862 QLA8044_MAX_OPTROM_BURST_DWORDS); 3863 } 3864 p_src += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; 3865 offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; 3866 } 3867 ql_dbg(ql_dbg_user, vha, 0xb133, 3868 "Done writing.\n"); 3869 3870 out: 3871 qla8044_protect_flash(vha); 3872 qla8044_flash_unlock(vha); 3873 scsi_unblock_requests(vha->host); 3874 kfree(p_cache); 3875 3876 return rval; 3877 } 3878 3879 #define LEG_INT_PTR_B31 (1 << 31) 3880 #define LEG_INT_PTR_B30 (1 << 30) 3881 #define PF_BITS_MASK (0xF << 16) 3882 /** 3883 * qla8044_intr_handler() - Process interrupts for the ISP8044 3884 * @irq: 3885 * @dev_id: SCSI driver HA context 3886 * 3887 * Called by system whenever the host adapter generates an interrupt. 3888 * 3889 * Returns handled flag. 3890 */ 3891 irqreturn_t 3892 qla8044_intr_handler(int irq, void *dev_id) 3893 { 3894 scsi_qla_host_t *vha; 3895 struct qla_hw_data *ha; 3896 struct rsp_que *rsp; 3897 struct device_reg_82xx __iomem *reg; 3898 int status = 0; 3899 unsigned long flags; 3900 unsigned long iter; 3901 uint32_t stat; 3902 uint16_t mb[4]; 3903 uint32_t leg_int_ptr = 0, pf_bit; 3904 3905 rsp = (struct rsp_que *) dev_id; 3906 if (!rsp) { 3907 ql_log(ql_log_info, NULL, 0xb143, 3908 "%s(): NULL response queue pointer\n", __func__); 3909 return IRQ_NONE; 3910 } 3911 ha = rsp->hw; 3912 vha = pci_get_drvdata(ha->pdev); 3913 3914 if (unlikely(pci_channel_offline(ha->pdev))) 3915 return IRQ_HANDLED; 3916 3917 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); 3918 3919 /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */ 3920 if (!(leg_int_ptr & (LEG_INT_PTR_B31))) { 3921 ql_dbg(ql_dbg_p3p, vha, 0xb144, 3922 "%s: Legacy Interrupt Bit 31 not set, " 3923 "spurious interrupt!\n", __func__); 3924 return IRQ_NONE; 3925 } 3926 3927 pf_bit = ha->portnum << 16; 3928 /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */ 3929 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) { 3930 ql_dbg(ql_dbg_p3p, vha, 0xb145, 3931 "%s: Incorrect function ID 0x%x in " 3932 "legacy interrupt register, " 3933 "ha->pf_bit = 0x%x\n", __func__, 3934 (leg_int_ptr & (PF_BITS_MASK)), pf_bit); 3935 return IRQ_NONE; 3936 } 3937 3938 /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger 3939 * Control register and poll till Legacy Interrupt Pointer register 3940 * bit32 is 0. 3941 */ 3942 qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0); 3943 do { 3944 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); 3945 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) 3946 break; 3947 } while (leg_int_ptr & (LEG_INT_PTR_B30)); 3948 3949 reg = &ha->iobase->isp82; 3950 spin_lock_irqsave(&ha->hardware_lock, flags); 3951 for (iter = 1; iter--; ) { 3952 3953 if (RD_REG_DWORD(®->host_int)) { 3954 stat = RD_REG_DWORD(®->host_status); 3955 if ((stat & HSRX_RISC_INT) == 0) 3956 break; 3957 3958 switch (stat & 0xff) { 3959 case 0x1: 3960 case 0x2: 3961 case 0x10: 3962 case 0x11: 3963 qla82xx_mbx_completion(vha, MSW(stat)); 3964 status |= MBX_INTERRUPT; 3965 break; 3966 case 0x12: 3967 mb[0] = MSW(stat); 3968 mb[1] = RD_REG_WORD(®->mailbox_out[1]); 3969 mb[2] = RD_REG_WORD(®->mailbox_out[2]); 3970 mb[3] = RD_REG_WORD(®->mailbox_out[3]); 3971 qla2x00_async_event(vha, rsp, mb); 3972 break; 3973 case 0x13: 3974 qla24xx_process_response_queue(vha, rsp); 3975 break; 3976 default: 3977 ql_dbg(ql_dbg_p3p, vha, 0xb146, 3978 "Unrecognized interrupt type " 3979 "(%d).\n", stat & 0xff); 3980 break; 3981 } 3982 } 3983 WRT_REG_DWORD(®->host_int, 0); 3984 } 3985 3986 qla2x00_handle_mbx_completion(ha, status); 3987 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3988 3989 return IRQ_HANDLED; 3990 } 3991 3992 static int 3993 qla8044_idc_dontreset(struct qla_hw_data *ha) 3994 { 3995 uint32_t idc_ctrl; 3996 3997 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 3998 return idc_ctrl & DONTRESET_BIT0; 3999 } 4000 4001 static void 4002 qla8044_clear_rst_ready(scsi_qla_host_t *vha) 4003 { 4004 uint32_t drv_state; 4005 4006 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 4007 4008 /* 4009 * For ISP8044, drv_active register has 1 bit per function, 4010 * shift 1 by func_num to set a bit for the function. 4011 * For ISP82xx, drv_active has 4 bits per function 4012 */ 4013 drv_state &= ~(1 << vha->hw->portnum); 4014 4015 ql_dbg(ql_dbg_p3p, vha, 0xb13d, 4016 "drv_state: 0x%08x\n", drv_state); 4017 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); 4018 } 4019 4020 int 4021 qla8044_abort_isp(scsi_qla_host_t *vha) 4022 { 4023 int rval; 4024 uint32_t dev_state; 4025 struct qla_hw_data *ha = vha->hw; 4026 4027 qla8044_idc_lock(ha); 4028 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 4029 4030 if (ql2xdontresethba) 4031 qla8044_set_idc_dontreset(vha); 4032 4033 /* If device_state is NEED_RESET, go ahead with 4034 * Reset,irrespective of ql2xdontresethba. This is to allow a 4035 * non-reset-owner to force a reset. Non-reset-owner sets 4036 * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset 4037 * and then forces a Reset by setting device_state to 4038 * NEED_RESET. */ 4039 if (dev_state == QLA8XXX_DEV_READY) { 4040 /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset 4041 * recovery */ 4042 if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) { 4043 ql_dbg(ql_dbg_p3p, vha, 0xb13e, 4044 "Reset recovery disabled\n"); 4045 rval = QLA_FUNCTION_FAILED; 4046 goto exit_isp_reset; 4047 } 4048 4049 ql_dbg(ql_dbg_p3p, vha, 0xb140, 4050 "HW State: NEED RESET\n"); 4051 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 4052 QLA8XXX_DEV_NEED_RESET); 4053 } 4054 4055 /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority 4056 * and which drivers are present. Unlike ISP82XX, the function setting 4057 * NEED_RESET, may not be the Reset owner. */ 4058 qla83xx_reset_ownership(vha); 4059 4060 qla8044_idc_unlock(ha); 4061 rval = qla8044_device_state_handler(vha); 4062 qla8044_idc_lock(ha); 4063 qla8044_clear_rst_ready(vha); 4064 4065 exit_isp_reset: 4066 qla8044_idc_unlock(ha); 4067 if (rval == QLA_SUCCESS) { 4068 ha->flags.isp82xx_fw_hung = 0; 4069 ha->flags.nic_core_reset_hdlr_active = 0; 4070 rval = qla82xx_restart_isp(vha); 4071 } 4072 4073 return rval; 4074 } 4075 4076 void 4077 qla8044_fw_dump(scsi_qla_host_t *vha, int hardware_locked) 4078 { 4079 struct qla_hw_data *ha = vha->hw; 4080 4081 if (!ha->allow_cna_fw_dump) 4082 return; 4083 4084 scsi_block_requests(vha->host); 4085 ha->flags.isp82xx_no_md_cap = 1; 4086 qla8044_idc_lock(ha); 4087 qla82xx_set_reset_owner(vha); 4088 qla8044_idc_unlock(ha); 4089 qla2x00_wait_for_chip_reset(vha); 4090 scsi_unblock_requests(vha->host); 4091 } 4092