1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2013 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 8 #include <linux/vmalloc.h> 9 10 #include "qla_def.h" 11 #include "qla_gbl.h" 12 13 #include <linux/delay.h> 14 15 /* 8044 Flash Read/Write functions */ 16 uint32_t 17 qla8044_rd_reg(struct qla_hw_data *ha, ulong addr) 18 { 19 return readl((void __iomem *) (ha->nx_pcibase + addr)); 20 } 21 22 void 23 qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val) 24 { 25 writel(val, (void __iomem *)((ha)->nx_pcibase + addr)); 26 } 27 28 int 29 qla8044_rd_direct(struct scsi_qla_host *vha, 30 const uint32_t crb_reg) 31 { 32 struct qla_hw_data *ha = vha->hw; 33 34 if (crb_reg < CRB_REG_INDEX_MAX) 35 return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]); 36 else 37 return QLA_FUNCTION_FAILED; 38 } 39 40 void 41 qla8044_wr_direct(struct scsi_qla_host *vha, 42 const uint32_t crb_reg, 43 const uint32_t value) 44 { 45 struct qla_hw_data *ha = vha->hw; 46 47 if (crb_reg < CRB_REG_INDEX_MAX) 48 qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value); 49 } 50 51 static int 52 qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr) 53 { 54 uint32_t val; 55 int ret_val = QLA_SUCCESS; 56 struct qla_hw_data *ha = vha->hw; 57 58 qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr); 59 val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum)); 60 61 if (val != addr) { 62 ql_log(ql_log_warn, vha, 0xb087, 63 "%s: Failed to set register window : " 64 "addr written 0x%x, read 0x%x!\n", 65 __func__, addr, val); 66 ret_val = QLA_FUNCTION_FAILED; 67 } 68 return ret_val; 69 } 70 71 static int 72 qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data) 73 { 74 int ret_val = QLA_SUCCESS; 75 struct qla_hw_data *ha = vha->hw; 76 77 ret_val = qla8044_set_win_base(vha, addr); 78 if (!ret_val) 79 *data = qla8044_rd_reg(ha, QLA8044_WILDCARD); 80 else 81 ql_log(ql_log_warn, vha, 0xb088, 82 "%s: failed read of addr 0x%x!\n", __func__, addr); 83 return ret_val; 84 } 85 86 static int 87 qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data) 88 { 89 int ret_val = QLA_SUCCESS; 90 struct qla_hw_data *ha = vha->hw; 91 92 ret_val = qla8044_set_win_base(vha, addr); 93 if (!ret_val) 94 qla8044_wr_reg(ha, QLA8044_WILDCARD, data); 95 else 96 ql_log(ql_log_warn, vha, 0xb089, 97 "%s: failed wrt to addr 0x%x, data 0x%x\n", 98 __func__, addr, data); 99 return ret_val; 100 } 101 102 /* 103 * qla8044_read_write_crb_reg - Read from raddr and write value to waddr. 104 * 105 * @ha : Pointer to adapter structure 106 * @raddr : CRB address to read from 107 * @waddr : CRB address to write to 108 * 109 */ 110 static void 111 qla8044_read_write_crb_reg(struct scsi_qla_host *vha, 112 uint32_t raddr, uint32_t waddr) 113 { 114 uint32_t value; 115 116 qla8044_rd_reg_indirect(vha, raddr, &value); 117 qla8044_wr_reg_indirect(vha, waddr, value); 118 } 119 120 /* 121 * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask, 122 * Shift Left,Right/OR/XOR with values RMW header and write value to waddr. 123 * 124 * @vha : Pointer to adapter structure 125 * @raddr : CRB address to read from 126 * @waddr : CRB address to write to 127 * @p_rmw_hdr : header with shift/or/xor values. 128 * 129 */ 130 static void 131 qla8044_rmw_crb_reg(struct scsi_qla_host *vha, 132 uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr) 133 { 134 uint32_t value; 135 136 if (p_rmw_hdr->index_a) 137 value = vha->reset_tmplt.array[p_rmw_hdr->index_a]; 138 else 139 qla8044_rd_reg_indirect(vha, raddr, &value); 140 value &= p_rmw_hdr->test_mask; 141 value <<= p_rmw_hdr->shl; 142 value >>= p_rmw_hdr->shr; 143 value |= p_rmw_hdr->or_value; 144 value ^= p_rmw_hdr->xor_value; 145 qla8044_wr_reg_indirect(vha, waddr, value); 146 return; 147 } 148 149 inline void 150 qla8044_set_qsnt_ready(struct scsi_qla_host *vha) 151 { 152 uint32_t qsnt_state; 153 struct qla_hw_data *ha = vha->hw; 154 155 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 156 qsnt_state |= (1 << ha->portnum); 157 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); 158 ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n", 159 __func__, vha->host_no, qsnt_state); 160 } 161 162 void 163 qla8044_clear_qsnt_ready(struct scsi_qla_host *vha) 164 { 165 uint32_t qsnt_state; 166 struct qla_hw_data *ha = vha->hw; 167 168 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 169 qsnt_state &= ~(1 << ha->portnum); 170 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); 171 ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n", 172 __func__, vha->host_no, qsnt_state); 173 } 174 175 /** 176 * 177 * qla8044_lock_recovery - Recovers the idc_lock. 178 * @ha : Pointer to adapter structure 179 * 180 * Lock Recovery Register 181 * 5-2 Lock recovery owner: Function ID of driver doing lock recovery, 182 * valid if bits 1..0 are set by driver doing lock recovery. 183 * 1-0 1 - Driver intends to force unlock the IDC lock. 184 * 2 - Driver is moving forward to unlock the IDC lock. Driver clears 185 * this field after force unlocking the IDC lock. 186 * 187 * Lock Recovery process 188 * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is 189 * greater than 0, then wait for the other driver to unlock otherwise 190 * move to the next step. 191 * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY 192 * register bits 1..0 and also set the function# in bits 5..2. 193 * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms. 194 * Wait for the other driver to perform lock recovery if the function 195 * number in bits 5..2 has changed, otherwise move to the next step. 196 * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0 197 * leaving your function# in bits 5..2. 198 * e. Force unlock using the DRIVER_UNLOCK register and immediately clear 199 * the IDC_LOCK_RECOVERY bits 5..0 by writing 0. 200 **/ 201 static int 202 qla8044_lock_recovery(struct scsi_qla_host *vha) 203 { 204 uint32_t lock = 0, lockid; 205 struct qla_hw_data *ha = vha->hw; 206 207 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); 208 209 /* Check for other Recovery in progress, go wait */ 210 if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0) 211 return QLA_FUNCTION_FAILED; 212 213 /* Intent to Recover */ 214 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 215 (ha->portnum << 216 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER); 217 msleep(200); 218 219 /* Check Intent to Recover is advertised */ 220 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); 221 if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum << 222 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS)) 223 return QLA_FUNCTION_FAILED; 224 225 ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n" 226 , __func__, ha->portnum); 227 228 /* Proceed to Recover */ 229 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 230 (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | 231 PROCEED_TO_RECOVER); 232 233 /* Force Unlock() */ 234 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF); 235 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); 236 237 /* Clear bits 0-5 in IDC_RECOVERY register*/ 238 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0); 239 240 /* Get lock() */ 241 lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); 242 if (lock) { 243 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 244 lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum; 245 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid); 246 return QLA_SUCCESS; 247 } else 248 return QLA_FUNCTION_FAILED; 249 } 250 251 int 252 qla8044_idc_lock(struct qla_hw_data *ha) 253 { 254 uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0; 255 uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0; 256 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 257 258 while (status == 0) { 259 /* acquire semaphore5 from PCI HW block */ 260 status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); 261 262 if (status) { 263 /* Increment Counter (8-31) and update func_num (0-7) on 264 * getting a successful lock */ 265 lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 266 lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum; 267 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id); 268 break; 269 } 270 271 if (timeout == 0) 272 first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 273 274 if (++timeout >= 275 (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) { 276 tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 277 func_num = tmo_owner & 0xFF; 278 lock_cnt = tmo_owner >> 8; 279 ql_log(ql_log_warn, vha, 0xb114, 280 "%s: Lock by func %d failed after 2s, lock held " 281 "by func %d, lock count %d, first_owner %d\n", 282 __func__, ha->portnum, func_num, lock_cnt, 283 (first_owner & 0xFF)); 284 if (first_owner != tmo_owner) { 285 /* Some other driver got lock, 286 * OR same driver got lock again (counter 287 * value changed), when we were waiting for 288 * lock. Retry for another 2 sec */ 289 ql_dbg(ql_dbg_p3p, vha, 0xb115, 290 "%s: %d: IDC lock failed\n", 291 __func__, ha->portnum); 292 timeout = 0; 293 } else { 294 /* Same driver holding lock > 2sec. 295 * Force Recovery */ 296 if (qla8044_lock_recovery(vha) == QLA_SUCCESS) { 297 /* Recovered and got lock */ 298 ret_val = QLA_SUCCESS; 299 ql_dbg(ql_dbg_p3p, vha, 0xb116, 300 "%s:IDC lock Recovery by %d" 301 "successful...\n", __func__, 302 ha->portnum); 303 } 304 /* Recovery Failed, some other function 305 * has the lock, wait for 2secs 306 * and retry 307 */ 308 ql_dbg(ql_dbg_p3p, vha, 0xb08a, 309 "%s: IDC lock Recovery by %d " 310 "failed, Retrying timout\n", __func__, 311 ha->portnum); 312 timeout = 0; 313 } 314 } 315 msleep(QLA8044_DRV_LOCK_MSLEEP); 316 } 317 return ret_val; 318 } 319 320 void 321 qla8044_idc_unlock(struct qla_hw_data *ha) 322 { 323 int id; 324 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 325 326 id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); 327 328 if ((id & 0xFF) != ha->portnum) { 329 ql_log(ql_log_warn, vha, 0xb118, 330 "%s: IDC Unlock by %d failed, lock owner is %d!\n", 331 __func__, ha->portnum, (id & 0xFF)); 332 return; 333 } 334 335 /* Keep lock counter value, update the ha->func_num to 0xFF */ 336 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF)); 337 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); 338 } 339 340 /* 8044 Flash Lock/Unlock functions */ 341 static int 342 qla8044_flash_lock(scsi_qla_host_t *vha) 343 { 344 int lock_owner; 345 int timeout = 0; 346 uint32_t lock_status = 0; 347 int ret_val = QLA_SUCCESS; 348 struct qla_hw_data *ha = vha->hw; 349 350 while (lock_status == 0) { 351 lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK); 352 if (lock_status) 353 break; 354 355 if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) { 356 lock_owner = qla8044_rd_reg(ha, 357 QLA8044_FLASH_LOCK_ID); 358 ql_log(ql_log_warn, vha, 0xb113, 359 "%s: flash lock by %d failed, held by %d\n", 360 __func__, ha->portnum, lock_owner); 361 ret_val = QLA_FUNCTION_FAILED; 362 break; 363 } 364 msleep(20); 365 } 366 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum); 367 return ret_val; 368 } 369 370 static void 371 qla8044_flash_unlock(scsi_qla_host_t *vha) 372 { 373 int ret_val; 374 struct qla_hw_data *ha = vha->hw; 375 376 /* Reading FLASH_UNLOCK register unlocks the Flash */ 377 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF); 378 ret_val = qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK); 379 } 380 381 382 static 383 void qla8044_flash_lock_recovery(struct scsi_qla_host *vha) 384 { 385 386 if (qla8044_flash_lock(vha)) { 387 /* Someone else is holding the lock. */ 388 ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n"); 389 } 390 391 /* 392 * Either we got the lock, or someone 393 * else died while holding it. 394 * In either case, unlock. 395 */ 396 qla8044_flash_unlock(vha); 397 } 398 399 /* 400 * Address and length are byte address 401 */ 402 static int 403 qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data, 404 uint32_t flash_addr, int u32_word_count) 405 { 406 int i, ret_val = QLA_SUCCESS; 407 uint32_t u32_word; 408 409 if (qla8044_flash_lock(vha) != QLA_SUCCESS) { 410 ret_val = QLA_FUNCTION_FAILED; 411 goto exit_lock_error; 412 } 413 414 if (flash_addr & 0x03) { 415 ql_log(ql_log_warn, vha, 0xb117, 416 "%s: Illegal addr = 0x%x\n", __func__, flash_addr); 417 ret_val = QLA_FUNCTION_FAILED; 418 goto exit_flash_read; 419 } 420 421 for (i = 0; i < u32_word_count; i++) { 422 if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW, 423 (flash_addr & 0xFFFF0000))) { 424 ql_log(ql_log_warn, vha, 0xb119, 425 "%s: failed to write addr 0x%x to " 426 "FLASH_DIRECT_WINDOW\n! ", 427 __func__, flash_addr); 428 ret_val = QLA_FUNCTION_FAILED; 429 goto exit_flash_read; 430 } 431 432 ret_val = qla8044_rd_reg_indirect(vha, 433 QLA8044_FLASH_DIRECT_DATA(flash_addr), 434 &u32_word); 435 if (ret_val != QLA_SUCCESS) { 436 ql_log(ql_log_warn, vha, 0xb08c, 437 "%s: failed to read addr 0x%x!\n", 438 __func__, flash_addr); 439 goto exit_flash_read; 440 } 441 442 *(uint32_t *)p_data = u32_word; 443 p_data = p_data + 4; 444 flash_addr = flash_addr + 4; 445 } 446 447 exit_flash_read: 448 qla8044_flash_unlock(vha); 449 450 exit_lock_error: 451 return ret_val; 452 } 453 454 /* 455 * Address and length are byte address 456 */ 457 uint8_t * 458 qla8044_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 459 uint32_t offset, uint32_t length) 460 { 461 scsi_block_requests(vha->host); 462 if (qla8044_read_flash_data(vha, (uint8_t *)buf, offset, length / 4) 463 != QLA_SUCCESS) { 464 ql_log(ql_log_warn, vha, 0xb08d, 465 "%s: Failed to read from flash\n", 466 __func__); 467 } 468 scsi_unblock_requests(vha->host); 469 return buf; 470 } 471 472 inline int 473 qla8044_need_reset(struct scsi_qla_host *vha) 474 { 475 uint32_t drv_state, drv_active; 476 int rval; 477 struct qla_hw_data *ha = vha->hw; 478 479 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 480 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 481 482 rval = drv_state & (1 << ha->portnum); 483 484 if (ha->flags.eeh_busy && drv_active) 485 rval = 1; 486 return rval; 487 } 488 489 /* 490 * qla8044_write_list - Write the value (p_entry->arg2) to address specified 491 * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between 492 * entries. 493 * 494 * @vha : Pointer to adapter structure 495 * @p_hdr : reset_entry header for WRITE_LIST opcode. 496 * 497 */ 498 static void 499 qla8044_write_list(struct scsi_qla_host *vha, 500 struct qla8044_reset_entry_hdr *p_hdr) 501 { 502 struct qla8044_entry *p_entry; 503 uint32_t i; 504 505 p_entry = (struct qla8044_entry *)((char *)p_hdr + 506 sizeof(struct qla8044_reset_entry_hdr)); 507 508 for (i = 0; i < p_hdr->count; i++, p_entry++) { 509 qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2); 510 if (p_hdr->delay) 511 udelay((uint32_t)(p_hdr->delay)); 512 } 513 } 514 515 /* 516 * qla8044_read_write_list - Read from address specified by p_entry->arg1, 517 * write value read to address specified by p_entry->arg2, for all entries in 518 * header with delay of p_hdr->delay between entries. 519 * 520 * @vha : Pointer to adapter structure 521 * @p_hdr : reset_entry header for READ_WRITE_LIST opcode. 522 * 523 */ 524 static void 525 qla8044_read_write_list(struct scsi_qla_host *vha, 526 struct qla8044_reset_entry_hdr *p_hdr) 527 { 528 struct qla8044_entry *p_entry; 529 uint32_t i; 530 531 p_entry = (struct qla8044_entry *)((char *)p_hdr + 532 sizeof(struct qla8044_reset_entry_hdr)); 533 534 for (i = 0; i < p_hdr->count; i++, p_entry++) { 535 qla8044_read_write_crb_reg(vha, p_entry->arg1, 536 p_entry->arg2); 537 if (p_hdr->delay) 538 udelay((uint32_t)(p_hdr->delay)); 539 } 540 } 541 542 /* 543 * qla8044_poll_reg - Poll the given CRB addr for duration msecs till 544 * value read ANDed with test_mask is equal to test_result. 545 * 546 * @ha : Pointer to adapter structure 547 * @addr : CRB register address 548 * @duration : Poll for total of "duration" msecs 549 * @test_mask : Mask value read with "test_mask" 550 * @test_result : Compare (value&test_mask) with test_result. 551 * 552 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 553 */ 554 static int 555 qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr, 556 int duration, uint32_t test_mask, uint32_t test_result) 557 { 558 uint32_t value; 559 int timeout_error; 560 uint8_t retries; 561 int ret_val = QLA_SUCCESS; 562 563 ret_val = qla8044_rd_reg_indirect(vha, addr, &value); 564 if (ret_val == QLA_FUNCTION_FAILED) { 565 timeout_error = 1; 566 goto exit_poll_reg; 567 } 568 569 /* poll every 1/10 of the total duration */ 570 retries = duration/10; 571 572 do { 573 if ((value & test_mask) != test_result) { 574 timeout_error = 1; 575 msleep(duration/10); 576 ret_val = qla8044_rd_reg_indirect(vha, addr, &value); 577 if (ret_val == QLA_FUNCTION_FAILED) { 578 timeout_error = 1; 579 goto exit_poll_reg; 580 } 581 } else { 582 timeout_error = 0; 583 break; 584 } 585 } while (retries--); 586 587 exit_poll_reg: 588 if (timeout_error) { 589 vha->reset_tmplt.seq_error++; 590 ql_log(ql_log_fatal, vha, 0xb090, 591 "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n", 592 __func__, value, test_mask, test_result); 593 } 594 595 return timeout_error; 596 } 597 598 /* 599 * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB 600 * register specified by p_entry->arg1 and compare (value AND test_mask) with 601 * test_result to validate it. Wait for p_hdr->delay between processing entries. 602 * 603 * @ha : Pointer to adapter structure 604 * @p_hdr : reset_entry header for POLL_LIST opcode. 605 * 606 */ 607 static void 608 qla8044_poll_list(struct scsi_qla_host *vha, 609 struct qla8044_reset_entry_hdr *p_hdr) 610 { 611 long delay; 612 struct qla8044_entry *p_entry; 613 struct qla8044_poll *p_poll; 614 uint32_t i; 615 uint32_t value; 616 617 p_poll = (struct qla8044_poll *) 618 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); 619 620 /* Entries start after 8 byte qla8044_poll, poll header contains 621 * the test_mask, test_value. 622 */ 623 p_entry = (struct qla8044_entry *)((char *)p_poll + 624 sizeof(struct qla8044_poll)); 625 626 delay = (long)p_hdr->delay; 627 628 if (!delay) { 629 for (i = 0; i < p_hdr->count; i++, p_entry++) 630 qla8044_poll_reg(vha, p_entry->arg1, 631 delay, p_poll->test_mask, p_poll->test_value); 632 } else { 633 for (i = 0; i < p_hdr->count; i++, p_entry++) { 634 if (delay) { 635 if (qla8044_poll_reg(vha, 636 p_entry->arg1, delay, 637 p_poll->test_mask, 638 p_poll->test_value)) { 639 /*If 640 * (data_read&test_mask != test_value) 641 * read TIMEOUT_ADDR (arg1) and 642 * ADDR (arg2) registers 643 */ 644 qla8044_rd_reg_indirect(vha, 645 p_entry->arg1, &value); 646 qla8044_rd_reg_indirect(vha, 647 p_entry->arg2, &value); 648 } 649 } 650 } 651 } 652 } 653 654 /* 655 * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr, 656 * read ar_addr, if (value& test_mask != test_mask) re-read till timeout 657 * expires. 658 * 659 * @vha : Pointer to adapter structure 660 * @p_hdr : reset entry header for POLL_WRITE_LIST opcode. 661 * 662 */ 663 static void 664 qla8044_poll_write_list(struct scsi_qla_host *vha, 665 struct qla8044_reset_entry_hdr *p_hdr) 666 { 667 long delay; 668 struct qla8044_quad_entry *p_entry; 669 struct qla8044_poll *p_poll; 670 uint32_t i; 671 672 p_poll = (struct qla8044_poll *)((char *)p_hdr + 673 sizeof(struct qla8044_reset_entry_hdr)); 674 675 p_entry = (struct qla8044_quad_entry *)((char *)p_poll + 676 sizeof(struct qla8044_poll)); 677 678 delay = (long)p_hdr->delay; 679 680 for (i = 0; i < p_hdr->count; i++, p_entry++) { 681 qla8044_wr_reg_indirect(vha, 682 p_entry->dr_addr, p_entry->dr_value); 683 qla8044_wr_reg_indirect(vha, 684 p_entry->ar_addr, p_entry->ar_value); 685 if (delay) { 686 if (qla8044_poll_reg(vha, 687 p_entry->ar_addr, delay, 688 p_poll->test_mask, 689 p_poll->test_value)) { 690 ql_dbg(ql_dbg_p3p, vha, 0xb091, 691 "%s: Timeout Error: poll list, ", 692 __func__); 693 ql_dbg(ql_dbg_p3p, vha, 0xb092, 694 "item_num %d, entry_num %d\n", i, 695 vha->reset_tmplt.seq_index); 696 } 697 } 698 } 699 } 700 701 /* 702 * qla8044_read_modify_write - Read value from p_entry->arg1, modify the 703 * value, write value to p_entry->arg2. Process entries with p_hdr->delay 704 * between entries. 705 * 706 * @vha : Pointer to adapter structure 707 * @p_hdr : header with shift/or/xor values. 708 * 709 */ 710 static void 711 qla8044_read_modify_write(struct scsi_qla_host *vha, 712 struct qla8044_reset_entry_hdr *p_hdr) 713 { 714 struct qla8044_entry *p_entry; 715 struct qla8044_rmw *p_rmw_hdr; 716 uint32_t i; 717 718 p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr + 719 sizeof(struct qla8044_reset_entry_hdr)); 720 721 p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr + 722 sizeof(struct qla8044_rmw)); 723 724 for (i = 0; i < p_hdr->count; i++, p_entry++) { 725 qla8044_rmw_crb_reg(vha, p_entry->arg1, 726 p_entry->arg2, p_rmw_hdr); 727 if (p_hdr->delay) 728 udelay((uint32_t)(p_hdr->delay)); 729 } 730 } 731 732 /* 733 * qla8044_pause - Wait for p_hdr->delay msecs, called between processing 734 * two entries of a sequence. 735 * 736 * @vha : Pointer to adapter structure 737 * @p_hdr : Common reset entry header. 738 * 739 */ 740 static 741 void qla8044_pause(struct scsi_qla_host *vha, 742 struct qla8044_reset_entry_hdr *p_hdr) 743 { 744 if (p_hdr->delay) 745 mdelay((uint32_t)((long)p_hdr->delay)); 746 } 747 748 /* 749 * qla8044_template_end - Indicates end of reset sequence processing. 750 * 751 * @vha : Pointer to adapter structure 752 * @p_hdr : Common reset entry header. 753 * 754 */ 755 static void 756 qla8044_template_end(struct scsi_qla_host *vha, 757 struct qla8044_reset_entry_hdr *p_hdr) 758 { 759 vha->reset_tmplt.template_end = 1; 760 761 if (vha->reset_tmplt.seq_error == 0) { 762 ql_dbg(ql_dbg_p3p, vha, 0xb093, 763 "%s: Reset sequence completed SUCCESSFULLY.\n", __func__); 764 } else { 765 ql_log(ql_log_fatal, vha, 0xb094, 766 "%s: Reset sequence completed with some timeout " 767 "errors.\n", __func__); 768 } 769 } 770 771 /* 772 * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr, 773 * if (value & test_mask != test_value) re-read till timeout value expires, 774 * read dr_addr register and assign to reset_tmplt.array. 775 * 776 * @vha : Pointer to adapter structure 777 * @p_hdr : Common reset entry header. 778 * 779 */ 780 static void 781 qla8044_poll_read_list(struct scsi_qla_host *vha, 782 struct qla8044_reset_entry_hdr *p_hdr) 783 { 784 long delay; 785 int index; 786 struct qla8044_quad_entry *p_entry; 787 struct qla8044_poll *p_poll; 788 uint32_t i; 789 uint32_t value; 790 791 p_poll = (struct qla8044_poll *) 792 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); 793 794 p_entry = (struct qla8044_quad_entry *) 795 ((char *)p_poll + sizeof(struct qla8044_poll)); 796 797 delay = (long)p_hdr->delay; 798 799 for (i = 0; i < p_hdr->count; i++, p_entry++) { 800 qla8044_wr_reg_indirect(vha, p_entry->ar_addr, 801 p_entry->ar_value); 802 if (delay) { 803 if (qla8044_poll_reg(vha, p_entry->ar_addr, delay, 804 p_poll->test_mask, p_poll->test_value)) { 805 ql_dbg(ql_dbg_p3p, vha, 0xb095, 806 "%s: Timeout Error: poll " 807 "list, ", __func__); 808 ql_dbg(ql_dbg_p3p, vha, 0xb096, 809 "Item_num %d, " 810 "entry_num %d\n", i, 811 vha->reset_tmplt.seq_index); 812 } else { 813 index = vha->reset_tmplt.array_index; 814 qla8044_rd_reg_indirect(vha, 815 p_entry->dr_addr, &value); 816 vha->reset_tmplt.array[index++] = value; 817 if (index == QLA8044_MAX_RESET_SEQ_ENTRIES) 818 vha->reset_tmplt.array_index = 1; 819 } 820 } 821 } 822 } 823 824 /* 825 * qla8031_process_reset_template - Process all entries in reset template 826 * till entry with SEQ_END opcode, which indicates end of the reset template 827 * processing. Each entry has a Reset Entry header, entry opcode/command, with 828 * size of the entry, number of entries in sub-sequence and delay in microsecs 829 * or timeout in millisecs. 830 * 831 * @ha : Pointer to adapter structure 832 * @p_buff : Common reset entry header. 833 * 834 */ 835 static void 836 qla8044_process_reset_template(struct scsi_qla_host *vha, 837 char *p_buff) 838 { 839 int index, entries; 840 struct qla8044_reset_entry_hdr *p_hdr; 841 char *p_entry = p_buff; 842 843 vha->reset_tmplt.seq_end = 0; 844 vha->reset_tmplt.template_end = 0; 845 entries = vha->reset_tmplt.hdr->entries; 846 index = vha->reset_tmplt.seq_index; 847 848 for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) { 849 p_hdr = (struct qla8044_reset_entry_hdr *)p_entry; 850 switch (p_hdr->cmd) { 851 case OPCODE_NOP: 852 break; 853 case OPCODE_WRITE_LIST: 854 qla8044_write_list(vha, p_hdr); 855 break; 856 case OPCODE_READ_WRITE_LIST: 857 qla8044_read_write_list(vha, p_hdr); 858 break; 859 case OPCODE_POLL_LIST: 860 qla8044_poll_list(vha, p_hdr); 861 break; 862 case OPCODE_POLL_WRITE_LIST: 863 qla8044_poll_write_list(vha, p_hdr); 864 break; 865 case OPCODE_READ_MODIFY_WRITE: 866 qla8044_read_modify_write(vha, p_hdr); 867 break; 868 case OPCODE_SEQ_PAUSE: 869 qla8044_pause(vha, p_hdr); 870 break; 871 case OPCODE_SEQ_END: 872 vha->reset_tmplt.seq_end = 1; 873 break; 874 case OPCODE_TMPL_END: 875 qla8044_template_end(vha, p_hdr); 876 break; 877 case OPCODE_POLL_READ_LIST: 878 qla8044_poll_read_list(vha, p_hdr); 879 break; 880 default: 881 ql_log(ql_log_fatal, vha, 0xb097, 882 "%s: Unknown command ==> 0x%04x on " 883 "entry = %d\n", __func__, p_hdr->cmd, index); 884 break; 885 } 886 /* 887 *Set pointer to next entry in the sequence. 888 */ 889 p_entry += p_hdr->size; 890 } 891 vha->reset_tmplt.seq_index = index; 892 } 893 894 static void 895 qla8044_process_init_seq(struct scsi_qla_host *vha) 896 { 897 qla8044_process_reset_template(vha, 898 vha->reset_tmplt.init_offset); 899 if (vha->reset_tmplt.seq_end != 1) 900 ql_log(ql_log_fatal, vha, 0xb098, 901 "%s: Abrupt INIT Sub-Sequence end.\n", 902 __func__); 903 } 904 905 static void 906 qla8044_process_stop_seq(struct scsi_qla_host *vha) 907 { 908 vha->reset_tmplt.seq_index = 0; 909 qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset); 910 if (vha->reset_tmplt.seq_end != 1) 911 ql_log(ql_log_fatal, vha, 0xb099, 912 "%s: Abrupt STOP Sub-Sequence end.\n", __func__); 913 } 914 915 static void 916 qla8044_process_start_seq(struct scsi_qla_host *vha) 917 { 918 qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset); 919 if (vha->reset_tmplt.template_end != 1) 920 ql_log(ql_log_fatal, vha, 0xb09a, 921 "%s: Abrupt START Sub-Sequence end.\n", 922 __func__); 923 } 924 925 static int 926 qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha, 927 uint32_t flash_addr, uint8_t *p_data, int u32_word_count) 928 { 929 uint32_t i; 930 uint32_t u32_word; 931 uint32_t flash_offset; 932 uint32_t addr = flash_addr; 933 int ret_val = QLA_SUCCESS; 934 935 flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1); 936 937 if (addr & 0x3) { 938 ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n", 939 __func__, addr); 940 ret_val = QLA_FUNCTION_FAILED; 941 goto exit_lockless_read; 942 } 943 944 ret_val = qla8044_wr_reg_indirect(vha, 945 QLA8044_FLASH_DIRECT_WINDOW, (addr)); 946 947 if (ret_val != QLA_SUCCESS) { 948 ql_log(ql_log_fatal, vha, 0xb09c, 949 "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n", 950 __func__, addr); 951 goto exit_lockless_read; 952 } 953 954 /* Check if data is spread across multiple sectors */ 955 if ((flash_offset + (u32_word_count * sizeof(uint32_t))) > 956 (QLA8044_FLASH_SECTOR_SIZE - 1)) { 957 /* Multi sector read */ 958 for (i = 0; i < u32_word_count; i++) { 959 ret_val = qla8044_rd_reg_indirect(vha, 960 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); 961 if (ret_val != QLA_SUCCESS) { 962 ql_log(ql_log_fatal, vha, 0xb09d, 963 "%s: failed to read addr 0x%x!\n", 964 __func__, addr); 965 goto exit_lockless_read; 966 } 967 *(uint32_t *)p_data = u32_word; 968 p_data = p_data + 4; 969 addr = addr + 4; 970 flash_offset = flash_offset + 4; 971 if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) { 972 /* This write is needed once for each sector */ 973 ret_val = qla8044_wr_reg_indirect(vha, 974 QLA8044_FLASH_DIRECT_WINDOW, (addr)); 975 if (ret_val != QLA_SUCCESS) { 976 ql_log(ql_log_fatal, vha, 0xb09f, 977 "%s: failed to write addr " 978 "0x%x to FLASH_DIRECT_WINDOW!\n", 979 __func__, addr); 980 goto exit_lockless_read; 981 } 982 flash_offset = 0; 983 } 984 } 985 } else { 986 /* Single sector read */ 987 for (i = 0; i < u32_word_count; i++) { 988 ret_val = qla8044_rd_reg_indirect(vha, 989 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); 990 if (ret_val != QLA_SUCCESS) { 991 ql_log(ql_log_fatal, vha, 0xb0a0, 992 "%s: failed to read addr 0x%x!\n", 993 __func__, addr); 994 goto exit_lockless_read; 995 } 996 *(uint32_t *)p_data = u32_word; 997 p_data = p_data + 4; 998 addr = addr + 4; 999 } 1000 } 1001 1002 exit_lockless_read: 1003 return ret_val; 1004 } 1005 1006 /* 1007 * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory 1008 * 1009 * @vha : Pointer to adapter structure 1010 * addr : Flash address to write to 1011 * data : Data to be written 1012 * count : word_count to be written 1013 * 1014 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1015 */ 1016 static int 1017 qla8044_ms_mem_write_128b(struct scsi_qla_host *vha, 1018 uint64_t addr, uint32_t *data, uint32_t count) 1019 { 1020 int i, j, ret_val = QLA_SUCCESS; 1021 uint32_t agt_ctrl; 1022 unsigned long flags; 1023 struct qla_hw_data *ha = vha->hw; 1024 1025 /* Only 128-bit aligned access */ 1026 if (addr & 0xF) { 1027 ret_val = QLA_FUNCTION_FAILED; 1028 goto exit_ms_mem_write; 1029 } 1030 write_lock_irqsave(&ha->hw_lock, flags); 1031 1032 /* Write address */ 1033 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0); 1034 if (ret_val == QLA_FUNCTION_FAILED) { 1035 ql_log(ql_log_fatal, vha, 0xb0a1, 1036 "%s: write to AGT_ADDR_HI failed!\n", __func__); 1037 goto exit_ms_mem_write_unlock; 1038 } 1039 1040 for (i = 0; i < count; i++, addr += 16) { 1041 if (!((QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_QDR_NET, 1042 QLA8044_ADDR_QDR_NET_MAX)) || 1043 (QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_DDR_NET, 1044 QLA8044_ADDR_DDR_NET_MAX)))) { 1045 ret_val = QLA_FUNCTION_FAILED; 1046 goto exit_ms_mem_write_unlock; 1047 } 1048 1049 ret_val = qla8044_wr_reg_indirect(vha, 1050 MD_MIU_TEST_AGT_ADDR_LO, addr); 1051 1052 /* Write data */ 1053 ret_val += qla8044_wr_reg_indirect(vha, 1054 MD_MIU_TEST_AGT_WRDATA_LO, *data++); 1055 ret_val += qla8044_wr_reg_indirect(vha, 1056 MD_MIU_TEST_AGT_WRDATA_HI, *data++); 1057 ret_val += qla8044_wr_reg_indirect(vha, 1058 MD_MIU_TEST_AGT_WRDATA_ULO, *data++); 1059 ret_val += qla8044_wr_reg_indirect(vha, 1060 MD_MIU_TEST_AGT_WRDATA_UHI, *data++); 1061 if (ret_val == QLA_FUNCTION_FAILED) { 1062 ql_log(ql_log_fatal, vha, 0xb0a2, 1063 "%s: write to AGT_WRDATA failed!\n", 1064 __func__); 1065 goto exit_ms_mem_write_unlock; 1066 } 1067 1068 /* Check write status */ 1069 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 1070 MIU_TA_CTL_WRITE_ENABLE); 1071 ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 1072 MIU_TA_CTL_WRITE_START); 1073 if (ret_val == QLA_FUNCTION_FAILED) { 1074 ql_log(ql_log_fatal, vha, 0xb0a3, 1075 "%s: write to AGT_CTRL failed!\n", __func__); 1076 goto exit_ms_mem_write_unlock; 1077 } 1078 1079 for (j = 0; j < MAX_CTL_CHECK; j++) { 1080 ret_val = qla8044_rd_reg_indirect(vha, 1081 MD_MIU_TEST_AGT_CTRL, &agt_ctrl); 1082 if (ret_val == QLA_FUNCTION_FAILED) { 1083 ql_log(ql_log_fatal, vha, 0xb0a4, 1084 "%s: failed to read " 1085 "MD_MIU_TEST_AGT_CTRL!\n", __func__); 1086 goto exit_ms_mem_write_unlock; 1087 } 1088 if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0) 1089 break; 1090 } 1091 1092 /* Status check failed */ 1093 if (j >= MAX_CTL_CHECK) { 1094 ql_log(ql_log_fatal, vha, 0xb0a5, 1095 "%s: MS memory write failed!\n", 1096 __func__); 1097 ret_val = QLA_FUNCTION_FAILED; 1098 goto exit_ms_mem_write_unlock; 1099 } 1100 } 1101 1102 exit_ms_mem_write_unlock: 1103 write_unlock_irqrestore(&ha->hw_lock, flags); 1104 1105 exit_ms_mem_write: 1106 return ret_val; 1107 } 1108 1109 static int 1110 qla8044_copy_bootloader(struct scsi_qla_host *vha) 1111 { 1112 uint8_t *p_cache; 1113 uint32_t src, count, size; 1114 uint64_t dest; 1115 int ret_val = QLA_SUCCESS; 1116 struct qla_hw_data *ha = vha->hw; 1117 1118 src = QLA8044_BOOTLOADER_FLASH_ADDR; 1119 dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR); 1120 size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE); 1121 1122 /* 128 bit alignment check */ 1123 if (size & 0xF) 1124 size = (size + 16) & ~0xF; 1125 1126 /* 16 byte count */ 1127 count = size/16; 1128 1129 p_cache = vmalloc(size); 1130 if (p_cache == NULL) { 1131 ql_log(ql_log_fatal, vha, 0xb0a6, 1132 "%s: Failed to allocate memory for " 1133 "boot loader cache\n", __func__); 1134 ret_val = QLA_FUNCTION_FAILED; 1135 goto exit_copy_bootloader; 1136 } 1137 1138 ret_val = qla8044_lockless_flash_read_u32(vha, src, 1139 p_cache, size/sizeof(uint32_t)); 1140 if (ret_val == QLA_FUNCTION_FAILED) { 1141 ql_log(ql_log_fatal, vha, 0xb0a7, 1142 "%s: Error reading F/W from flash!!!\n", __func__); 1143 goto exit_copy_error; 1144 } 1145 ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n", 1146 __func__); 1147 1148 /* 128 bit/16 byte write to MS memory */ 1149 ret_val = qla8044_ms_mem_write_128b(vha, dest, 1150 (uint32_t *)p_cache, count); 1151 if (ret_val == QLA_FUNCTION_FAILED) { 1152 ql_log(ql_log_fatal, vha, 0xb0a9, 1153 "%s: Error writing F/W to MS !!!\n", __func__); 1154 goto exit_copy_error; 1155 } 1156 ql_dbg(ql_dbg_p3p, vha, 0xb0aa, 1157 "%s: Wrote F/W (size %d) to MS !!!\n", 1158 __func__, size); 1159 1160 exit_copy_error: 1161 vfree(p_cache); 1162 1163 exit_copy_bootloader: 1164 return ret_val; 1165 } 1166 1167 static int 1168 qla8044_restart(struct scsi_qla_host *vha) 1169 { 1170 int ret_val = QLA_SUCCESS; 1171 struct qla_hw_data *ha = vha->hw; 1172 1173 qla8044_process_stop_seq(vha); 1174 1175 /* Collect minidump */ 1176 if (ql2xmdenable) 1177 qla8044_get_minidump(vha); 1178 else 1179 ql_log(ql_log_fatal, vha, 0xb14c, 1180 "Minidump disabled.\n"); 1181 1182 qla8044_process_init_seq(vha); 1183 1184 if (qla8044_copy_bootloader(vha)) { 1185 ql_log(ql_log_fatal, vha, 0xb0ab, 1186 "%s: Copy bootloader, firmware restart failed!\n", 1187 __func__); 1188 ret_val = QLA_FUNCTION_FAILED; 1189 goto exit_restart; 1190 } 1191 1192 /* 1193 * Loads F/W from flash 1194 */ 1195 qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH); 1196 1197 qla8044_process_start_seq(vha); 1198 1199 exit_restart: 1200 return ret_val; 1201 } 1202 1203 /* 1204 * qla8044_check_cmd_peg_status - Check peg status to see if Peg is 1205 * initialized. 1206 * 1207 * @ha : Pointer to adapter structure 1208 * 1209 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1210 */ 1211 static int 1212 qla8044_check_cmd_peg_status(struct scsi_qla_host *vha) 1213 { 1214 uint32_t val, ret_val = QLA_FUNCTION_FAILED; 1215 int retries = CRB_CMDPEG_CHECK_RETRY_COUNT; 1216 struct qla_hw_data *ha = vha->hw; 1217 1218 do { 1219 val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE); 1220 if (val == PHAN_INITIALIZE_COMPLETE) { 1221 ql_dbg(ql_dbg_p3p, vha, 0xb0ac, 1222 "%s: Command Peg initialization " 1223 "complete! state=0x%x\n", __func__, val); 1224 ret_val = QLA_SUCCESS; 1225 break; 1226 } 1227 msleep(CRB_CMDPEG_CHECK_DELAY); 1228 } while (--retries); 1229 1230 return ret_val; 1231 } 1232 1233 static int 1234 qla8044_start_firmware(struct scsi_qla_host *vha) 1235 { 1236 int ret_val = QLA_SUCCESS; 1237 1238 if (qla8044_restart(vha)) { 1239 ql_log(ql_log_fatal, vha, 0xb0ad, 1240 "%s: Restart Error!!!, Need Reset!!!\n", 1241 __func__); 1242 ret_val = QLA_FUNCTION_FAILED; 1243 goto exit_start_fw; 1244 } else 1245 ql_dbg(ql_dbg_p3p, vha, 0xb0af, 1246 "%s: Restart done!\n", __func__); 1247 1248 ret_val = qla8044_check_cmd_peg_status(vha); 1249 if (ret_val) { 1250 ql_log(ql_log_fatal, vha, 0xb0b0, 1251 "%s: Peg not initialized!\n", __func__); 1252 ret_val = QLA_FUNCTION_FAILED; 1253 } 1254 1255 exit_start_fw: 1256 return ret_val; 1257 } 1258 1259 void 1260 qla8044_clear_drv_active(struct qla_hw_data *ha) 1261 { 1262 uint32_t drv_active; 1263 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 1264 1265 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1266 drv_active &= ~(1 << (ha->portnum)); 1267 1268 ql_log(ql_log_info, vha, 0xb0b1, 1269 "%s(%ld): drv_active: 0x%08x\n", 1270 __func__, vha->host_no, drv_active); 1271 1272 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); 1273 } 1274 1275 /* 1276 * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw 1277 * @ha: pointer to adapter structure 1278 * 1279 * Note: IDC lock must be held upon entry 1280 **/ 1281 static int 1282 qla8044_device_bootstrap(struct scsi_qla_host *vha) 1283 { 1284 int rval = QLA_FUNCTION_FAILED; 1285 int i; 1286 uint32_t old_count = 0, count = 0; 1287 int need_reset = 0; 1288 uint32_t idc_ctrl; 1289 struct qla_hw_data *ha = vha->hw; 1290 1291 need_reset = qla8044_need_reset(vha); 1292 1293 if (!need_reset) { 1294 old_count = qla8044_rd_direct(vha, 1295 QLA8044_PEG_ALIVE_COUNTER_INDEX); 1296 1297 for (i = 0; i < 10; i++) { 1298 msleep(200); 1299 1300 count = qla8044_rd_direct(vha, 1301 QLA8044_PEG_ALIVE_COUNTER_INDEX); 1302 if (count != old_count) { 1303 rval = QLA_SUCCESS; 1304 goto dev_ready; 1305 } 1306 } 1307 qla8044_flash_lock_recovery(vha); 1308 } else { 1309 /* We are trying to perform a recovery here. */ 1310 if (ha->flags.isp82xx_fw_hung) 1311 qla8044_flash_lock_recovery(vha); 1312 } 1313 1314 /* set to DEV_INITIALIZING */ 1315 ql_log(ql_log_info, vha, 0xb0b2, 1316 "%s: HW State: INITIALIZING\n", __func__); 1317 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1318 QLA8XXX_DEV_INITIALIZING); 1319 1320 qla8044_idc_unlock(ha); 1321 rval = qla8044_start_firmware(vha); 1322 qla8044_idc_lock(ha); 1323 1324 if (rval != QLA_SUCCESS) { 1325 ql_log(ql_log_info, vha, 0xb0b3, 1326 "%s: HW State: FAILED\n", __func__); 1327 qla8044_clear_drv_active(ha); 1328 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1329 QLA8XXX_DEV_FAILED); 1330 return rval; 1331 } 1332 1333 /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after 1334 * device goes to INIT state. */ 1335 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1336 if (idc_ctrl & GRACEFUL_RESET_BIT1) { 1337 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, 1338 (idc_ctrl & ~GRACEFUL_RESET_BIT1)); 1339 ha->fw_dumped = 0; 1340 } 1341 1342 dev_ready: 1343 ql_log(ql_log_info, vha, 0xb0b4, 1344 "%s: HW State: READY\n", __func__); 1345 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY); 1346 1347 return rval; 1348 } 1349 1350 /*-------------------------Reset Sequence Functions-----------------------*/ 1351 static void 1352 qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha) 1353 { 1354 u8 *phdr; 1355 1356 if (!vha->reset_tmplt.buff) { 1357 ql_log(ql_log_fatal, vha, 0xb0b5, 1358 "%s: Error Invalid reset_seq_template\n", __func__); 1359 return; 1360 } 1361 1362 phdr = vha->reset_tmplt.buff; 1363 ql_dbg(ql_dbg_p3p, vha, 0xb0b6, 1364 "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X" 1365 "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n" 1366 "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n", 1367 *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4), 1368 *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8), 1369 *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12), 1370 *(phdr+13), *(phdr+14), *(phdr+15)); 1371 } 1372 1373 /* 1374 * qla8044_reset_seq_checksum_test - Validate Reset Sequence template. 1375 * 1376 * @ha : Pointer to adapter structure 1377 * 1378 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 1379 */ 1380 static int 1381 qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha) 1382 { 1383 uint32_t sum = 0; 1384 uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff; 1385 int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t); 1386 1387 while (u16_count-- > 0) 1388 sum += *buff++; 1389 1390 while (sum >> 16) 1391 sum = (sum & 0xFFFF) + (sum >> 16); 1392 1393 /* checksum of 0 indicates a valid template */ 1394 if (~sum) { 1395 return QLA_SUCCESS; 1396 } else { 1397 ql_log(ql_log_fatal, vha, 0xb0b7, 1398 "%s: Reset seq checksum failed\n", __func__); 1399 return QLA_FUNCTION_FAILED; 1400 } 1401 } 1402 1403 /* 1404 * qla8044_read_reset_template - Read Reset Template from Flash, validate 1405 * the template and store offsets of stop/start/init offsets in ha->reset_tmplt. 1406 * 1407 * @ha : Pointer to adapter structure 1408 */ 1409 void 1410 qla8044_read_reset_template(struct scsi_qla_host *vha) 1411 { 1412 uint8_t *p_buff; 1413 uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size; 1414 1415 vha->reset_tmplt.seq_error = 0; 1416 vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE); 1417 if (vha->reset_tmplt.buff == NULL) { 1418 ql_log(ql_log_fatal, vha, 0xb0b8, 1419 "%s: Failed to allocate reset template resources\n", 1420 __func__); 1421 goto exit_read_reset_template; 1422 } 1423 1424 p_buff = vha->reset_tmplt.buff; 1425 addr = QLA8044_RESET_TEMPLATE_ADDR; 1426 1427 tmplt_hdr_def_size = 1428 sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t); 1429 1430 ql_dbg(ql_dbg_p3p, vha, 0xb0b9, 1431 "%s: Read template hdr size %d from Flash\n", 1432 __func__, tmplt_hdr_def_size); 1433 1434 /* Copy template header from flash */ 1435 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { 1436 ql_log(ql_log_fatal, vha, 0xb0ba, 1437 "%s: Failed to read reset template\n", __func__); 1438 goto exit_read_template_error; 1439 } 1440 1441 vha->reset_tmplt.hdr = 1442 (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff; 1443 1444 /* Validate the template header size and signature */ 1445 tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t); 1446 if ((tmplt_hdr_size != tmplt_hdr_def_size) || 1447 (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) { 1448 ql_log(ql_log_fatal, vha, 0xb0bb, 1449 "%s: Template Header size invalid %d " 1450 "tmplt_hdr_def_size %d!!!\n", __func__, 1451 tmplt_hdr_size, tmplt_hdr_def_size); 1452 goto exit_read_template_error; 1453 } 1454 1455 addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size; 1456 p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size; 1457 tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size - 1458 vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t); 1459 1460 ql_dbg(ql_dbg_p3p, vha, 0xb0bc, 1461 "%s: Read rest of the template size %d\n", 1462 __func__, vha->reset_tmplt.hdr->size); 1463 1464 /* Copy rest of the template */ 1465 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { 1466 ql_log(ql_log_fatal, vha, 0xb0bd, 1467 "%s: Failed to read reset tempelate\n", __func__); 1468 goto exit_read_template_error; 1469 } 1470 1471 /* Integrity check */ 1472 if (qla8044_reset_seq_checksum_test(vha)) { 1473 ql_log(ql_log_fatal, vha, 0xb0be, 1474 "%s: Reset Seq checksum failed!\n", __func__); 1475 goto exit_read_template_error; 1476 } 1477 1478 ql_dbg(ql_dbg_p3p, vha, 0xb0bf, 1479 "%s: Reset Seq checksum passed! Get stop, " 1480 "start and init seq offsets\n", __func__); 1481 1482 /* Get STOP, START, INIT sequence offsets */ 1483 vha->reset_tmplt.init_offset = vha->reset_tmplt.buff + 1484 vha->reset_tmplt.hdr->init_seq_offset; 1485 1486 vha->reset_tmplt.start_offset = vha->reset_tmplt.buff + 1487 vha->reset_tmplt.hdr->start_seq_offset; 1488 1489 vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff + 1490 vha->reset_tmplt.hdr->hdr_size; 1491 1492 qla8044_dump_reset_seq_hdr(vha); 1493 1494 goto exit_read_reset_template; 1495 1496 exit_read_template_error: 1497 vfree(vha->reset_tmplt.buff); 1498 1499 exit_read_reset_template: 1500 return; 1501 } 1502 1503 void 1504 qla8044_set_idc_dontreset(struct scsi_qla_host *vha) 1505 { 1506 uint32_t idc_ctrl; 1507 struct qla_hw_data *ha = vha->hw; 1508 1509 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1510 idc_ctrl |= DONTRESET_BIT0; 1511 ql_dbg(ql_dbg_p3p, vha, 0xb0c0, 1512 "%s: idc_ctrl = %d\n", __func__, idc_ctrl); 1513 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); 1514 } 1515 1516 inline void 1517 qla8044_set_rst_ready(struct scsi_qla_host *vha) 1518 { 1519 uint32_t drv_state; 1520 struct qla_hw_data *ha = vha->hw; 1521 1522 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 1523 1524 /* For ISP8044, drv_active register has 1 bit per function, 1525 * shift 1 by func_num to set a bit for the function.*/ 1526 drv_state |= (1 << ha->portnum); 1527 1528 ql_log(ql_log_info, vha, 0xb0c1, 1529 "%s(%ld): drv_state: 0x%08x\n", 1530 __func__, vha->host_no, drv_state); 1531 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); 1532 } 1533 1534 /** 1535 * qla8044_need_reset_handler - Code to start reset sequence 1536 * @ha: pointer to adapter structure 1537 * 1538 * Note: IDC lock must be held upon entry 1539 **/ 1540 static void 1541 qla8044_need_reset_handler(struct scsi_qla_host *vha) 1542 { 1543 uint32_t dev_state = 0, drv_state, drv_active; 1544 unsigned long reset_timeout, dev_init_timeout; 1545 struct qla_hw_data *ha = vha->hw; 1546 1547 ql_log(ql_log_fatal, vha, 0xb0c2, 1548 "%s: Performing ISP error recovery\n", __func__); 1549 1550 if (vha->flags.online) { 1551 qla8044_idc_unlock(ha); 1552 qla2x00_abort_isp_cleanup(vha); 1553 ha->isp_ops->get_flash_version(vha, vha->req->ring); 1554 ha->isp_ops->nvram_config(vha); 1555 qla8044_idc_lock(ha); 1556 } 1557 1558 drv_state = qla8044_rd_direct(vha, 1559 QLA8044_CRB_DRV_STATE_INDEX); 1560 drv_active = qla8044_rd_direct(vha, 1561 QLA8044_CRB_DRV_ACTIVE_INDEX); 1562 1563 ql_log(ql_log_info, vha, 0xb0c5, 1564 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n", 1565 __func__, vha->host_no, drv_state, drv_active); 1566 1567 if (!ha->flags.nic_core_reset_owner) { 1568 ql_dbg(ql_dbg_p3p, vha, 0xb0c3, 1569 "%s(%ld): reset acknowledged\n", 1570 __func__, vha->host_no); 1571 qla8044_set_rst_ready(vha); 1572 1573 /* Non-reset owners ACK Reset and wait for device INIT state 1574 * as part of Reset Recovery by Reset Owner 1575 */ 1576 dev_init_timeout = jiffies + (ha->fcoe_reset_timeout * HZ); 1577 1578 do { 1579 if (time_after_eq(jiffies, dev_init_timeout)) { 1580 ql_log(ql_log_info, vha, 0xb0c4, 1581 "%s: Non Reset owner: Reset Ack Timeout!\n", 1582 __func__); 1583 break; 1584 } 1585 1586 qla8044_idc_unlock(ha); 1587 msleep(1000); 1588 qla8044_idc_lock(ha); 1589 1590 dev_state = qla8044_rd_direct(vha, 1591 QLA8044_CRB_DEV_STATE_INDEX); 1592 } while (((drv_state & drv_active) != drv_active) && 1593 (dev_state == QLA8XXX_DEV_NEED_RESET)); 1594 } else { 1595 qla8044_set_rst_ready(vha); 1596 1597 /* wait for 10 seconds for reset ack from all functions */ 1598 reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ); 1599 1600 while ((drv_state & drv_active) != drv_active) { 1601 if (time_after_eq(jiffies, reset_timeout)) { 1602 ql_log(ql_log_info, vha, 0xb0c6, 1603 "%s: RESET TIMEOUT!" 1604 "drv_state: 0x%08x, drv_active: 0x%08x\n", 1605 QLA2XXX_DRIVER_NAME, drv_state, drv_active); 1606 break; 1607 } 1608 1609 qla8044_idc_unlock(ha); 1610 msleep(1000); 1611 qla8044_idc_lock(ha); 1612 1613 drv_state = qla8044_rd_direct(vha, 1614 QLA8044_CRB_DRV_STATE_INDEX); 1615 drv_active = qla8044_rd_direct(vha, 1616 QLA8044_CRB_DRV_ACTIVE_INDEX); 1617 } 1618 1619 if (drv_state != drv_active) { 1620 ql_log(ql_log_info, vha, 0xb0c7, 1621 "%s(%ld): Reset_owner turning off drv_active " 1622 "of non-acking function 0x%x\n", __func__, 1623 vha->host_no, (drv_active ^ drv_state)); 1624 drv_active = drv_active & drv_state; 1625 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, 1626 drv_active); 1627 } 1628 1629 /* 1630 * Clear RESET OWNER, will be set at next reset 1631 * by next RST_OWNER 1632 */ 1633 ha->flags.nic_core_reset_owner = 0; 1634 1635 /* Start Reset Recovery */ 1636 qla8044_device_bootstrap(vha); 1637 } 1638 } 1639 1640 static void 1641 qla8044_set_drv_active(struct scsi_qla_host *vha) 1642 { 1643 uint32_t drv_active; 1644 struct qla_hw_data *ha = vha->hw; 1645 1646 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1647 1648 /* For ISP8044, drv_active register has 1 bit per function, 1649 * shift 1 by func_num to set a bit for the function.*/ 1650 drv_active |= (1 << ha->portnum); 1651 1652 ql_log(ql_log_info, vha, 0xb0c8, 1653 "%s(%ld): drv_active: 0x%08x\n", 1654 __func__, vha->host_no, drv_active); 1655 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); 1656 } 1657 1658 static void 1659 qla8044_clear_idc_dontreset(struct scsi_qla_host *vha) 1660 { 1661 uint32_t idc_ctrl; 1662 struct qla_hw_data *ha = vha->hw; 1663 1664 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 1665 idc_ctrl &= ~DONTRESET_BIT0; 1666 ql_log(ql_log_info, vha, 0xb0c9, 1667 "%s: idc_ctrl = %d\n", __func__, 1668 idc_ctrl); 1669 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); 1670 } 1671 1672 static int 1673 qla8044_set_idc_ver(struct scsi_qla_host *vha) 1674 { 1675 int idc_ver; 1676 uint32_t drv_active; 1677 int rval = QLA_SUCCESS; 1678 struct qla_hw_data *ha = vha->hw; 1679 1680 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1681 if (drv_active == (1 << ha->portnum)) { 1682 idc_ver = qla8044_rd_direct(vha, 1683 QLA8044_CRB_DRV_IDC_VERSION_INDEX); 1684 idc_ver &= (~0xFF); 1685 idc_ver |= QLA8044_IDC_VER_MAJ_VALUE; 1686 qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX, 1687 idc_ver); 1688 ql_log(ql_log_info, vha, 0xb0ca, 1689 "%s: IDC version updated to %d\n", 1690 __func__, idc_ver); 1691 } else { 1692 idc_ver = qla8044_rd_direct(vha, 1693 QLA8044_CRB_DRV_IDC_VERSION_INDEX); 1694 idc_ver &= 0xFF; 1695 if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) { 1696 ql_log(ql_log_info, vha, 0xb0cb, 1697 "%s: qla4xxx driver IDC version %d " 1698 "is not compatible with IDC version %d " 1699 "of other drivers!\n", 1700 __func__, QLA8044_IDC_VER_MAJ_VALUE, 1701 idc_ver); 1702 rval = QLA_FUNCTION_FAILED; 1703 goto exit_set_idc_ver; 1704 } 1705 } 1706 1707 /* Update IDC_MINOR_VERSION */ 1708 idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR); 1709 idc_ver &= ~(0x03 << (ha->portnum * 2)); 1710 idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2)); 1711 qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver); 1712 1713 exit_set_idc_ver: 1714 return rval; 1715 } 1716 1717 static int 1718 qla8044_update_idc_reg(struct scsi_qla_host *vha) 1719 { 1720 uint32_t drv_active; 1721 int rval = QLA_SUCCESS; 1722 struct qla_hw_data *ha = vha->hw; 1723 1724 if (vha->flags.init_done) 1725 goto exit_update_idc_reg; 1726 1727 qla8044_idc_lock(ha); 1728 qla8044_set_drv_active(vha); 1729 1730 drv_active = qla8044_rd_direct(vha, 1731 QLA8044_CRB_DRV_ACTIVE_INDEX); 1732 1733 /* If we are the first driver to load and 1734 * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */ 1735 if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba) 1736 qla8044_clear_idc_dontreset(vha); 1737 1738 rval = qla8044_set_idc_ver(vha); 1739 if (rval == QLA_FUNCTION_FAILED) 1740 qla8044_clear_drv_active(ha); 1741 qla8044_idc_unlock(ha); 1742 1743 exit_update_idc_reg: 1744 return rval; 1745 } 1746 1747 /** 1748 * qla8044_need_qsnt_handler - Code to start qsnt 1749 * @ha: pointer to adapter structure 1750 **/ 1751 static void 1752 qla8044_need_qsnt_handler(struct scsi_qla_host *vha) 1753 { 1754 unsigned long qsnt_timeout; 1755 uint32_t drv_state, drv_active, dev_state; 1756 struct qla_hw_data *ha = vha->hw; 1757 1758 if (vha->flags.online) 1759 qla2x00_quiesce_io(vha); 1760 else 1761 return; 1762 1763 qla8044_set_qsnt_ready(vha); 1764 1765 /* Wait for 30 secs for all functions to ack qsnt mode */ 1766 qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ); 1767 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 1768 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); 1769 1770 /* Shift drv_active by 1 to match drv_state. As quiescent ready bit 1771 position is at bit 1 and drv active is at bit 0 */ 1772 drv_active = drv_active << 1; 1773 1774 while (drv_state != drv_active) { 1775 if (time_after_eq(jiffies, qsnt_timeout)) { 1776 /* Other functions did not ack, changing state to 1777 * DEV_READY 1778 */ 1779 clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1780 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1781 QLA8XXX_DEV_READY); 1782 qla8044_clear_qsnt_ready(vha); 1783 ql_log(ql_log_info, vha, 0xb0cc, 1784 "Timeout waiting for quiescent ack!!!\n"); 1785 return; 1786 } 1787 qla8044_idc_unlock(ha); 1788 msleep(1000); 1789 qla8044_idc_lock(ha); 1790 1791 drv_state = qla8044_rd_direct(vha, 1792 QLA8044_CRB_DRV_STATE_INDEX); 1793 drv_active = qla8044_rd_direct(vha, 1794 QLA8044_CRB_DRV_ACTIVE_INDEX); 1795 drv_active = drv_active << 1; 1796 } 1797 1798 /* All functions have Acked. Set quiescent state */ 1799 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1800 1801 if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) { 1802 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1803 QLA8XXX_DEV_QUIESCENT); 1804 ql_log(ql_log_info, vha, 0xb0cd, 1805 "%s: HW State: QUIESCENT\n", __func__); 1806 } 1807 } 1808 1809 /* 1810 * qla8044_device_state_handler - Adapter state machine 1811 * @ha: pointer to host adapter structure. 1812 * 1813 * Note: IDC lock must be UNLOCKED upon entry 1814 **/ 1815 int 1816 qla8044_device_state_handler(struct scsi_qla_host *vha) 1817 { 1818 uint32_t dev_state; 1819 int rval = QLA_SUCCESS; 1820 unsigned long dev_init_timeout; 1821 struct qla_hw_data *ha = vha->hw; 1822 1823 rval = qla8044_update_idc_reg(vha); 1824 if (rval == QLA_FUNCTION_FAILED) 1825 goto exit_error; 1826 1827 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1828 ql_dbg(ql_dbg_p3p, vha, 0xb0ce, 1829 "Device state is 0x%x = %s\n", 1830 dev_state, dev_state < MAX_STATES ? 1831 qdev_state(dev_state) : "Unknown"); 1832 1833 /* wait for 30 seconds for device to go ready */ 1834 dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ); 1835 1836 qla8044_idc_lock(ha); 1837 1838 while (1) { 1839 if (time_after_eq(jiffies, dev_init_timeout)) { 1840 ql_log(ql_log_warn, vha, 0xb0cf, 1841 "%s: Device Init Failed 0x%x = %s\n", 1842 QLA2XXX_DRIVER_NAME, dev_state, 1843 dev_state < MAX_STATES ? 1844 qdev_state(dev_state) : "Unknown"); 1845 1846 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 1847 QLA8XXX_DEV_FAILED); 1848 } 1849 1850 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 1851 ql_log(ql_log_info, vha, 0xb0d0, 1852 "Device state is 0x%x = %s\n", 1853 dev_state, dev_state < MAX_STATES ? 1854 qdev_state(dev_state) : "Unknown"); 1855 1856 /* NOTE: Make sure idc unlocked upon exit of switch statement */ 1857 switch (dev_state) { 1858 case QLA8XXX_DEV_READY: 1859 ha->flags.nic_core_reset_owner = 0; 1860 goto exit; 1861 case QLA8XXX_DEV_COLD: 1862 rval = qla8044_device_bootstrap(vha); 1863 break; 1864 case QLA8XXX_DEV_INITIALIZING: 1865 qla8044_idc_unlock(ha); 1866 msleep(1000); 1867 qla8044_idc_lock(ha); 1868 break; 1869 case QLA8XXX_DEV_NEED_RESET: 1870 /* For ISP8044, if NEED_RESET is set by any driver, 1871 * it should be honored, irrespective of IDC_CTRL 1872 * DONTRESET_BIT0 */ 1873 qla8044_need_reset_handler(vha); 1874 break; 1875 case QLA8XXX_DEV_NEED_QUIESCENT: 1876 /* idc locked/unlocked in handler */ 1877 qla8044_need_qsnt_handler(vha); 1878 1879 /* Reset the init timeout after qsnt handler */ 1880 dev_init_timeout = jiffies + 1881 (ha->fcoe_reset_timeout * HZ); 1882 break; 1883 case QLA8XXX_DEV_QUIESCENT: 1884 ql_log(ql_log_info, vha, 0xb0d1, 1885 "HW State: QUIESCENT\n"); 1886 1887 qla8044_idc_unlock(ha); 1888 msleep(1000); 1889 qla8044_idc_lock(ha); 1890 1891 /* Reset the init timeout after qsnt handler */ 1892 dev_init_timeout = jiffies + 1893 (ha->fcoe_reset_timeout * HZ); 1894 break; 1895 case QLA8XXX_DEV_FAILED: 1896 ha->flags.nic_core_reset_owner = 0; 1897 qla8044_idc_unlock(ha); 1898 qla8xxx_dev_failed_handler(vha); 1899 rval = QLA_FUNCTION_FAILED; 1900 qla8044_idc_lock(ha); 1901 goto exit; 1902 default: 1903 qla8044_idc_unlock(ha); 1904 qla8xxx_dev_failed_handler(vha); 1905 rval = QLA_FUNCTION_FAILED; 1906 qla8044_idc_lock(ha); 1907 goto exit; 1908 } 1909 } 1910 exit: 1911 qla8044_idc_unlock(ha); 1912 1913 exit_error: 1914 return rval; 1915 } 1916 1917 /** 1918 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 1919 * @ha: adapter block pointer. 1920 * 1921 * Note: The caller should not hold the idc lock. 1922 **/ 1923 static int 1924 qla8044_check_temp(struct scsi_qla_host *vha) 1925 { 1926 uint32_t temp, temp_state, temp_val; 1927 int status = QLA_SUCCESS; 1928 1929 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); 1930 temp_state = qla82xx_get_temp_state(temp); 1931 temp_val = qla82xx_get_temp_val(temp); 1932 1933 if (temp_state == QLA82XX_TEMP_PANIC) { 1934 ql_log(ql_log_warn, vha, 0xb0d2, 1935 "Device temperature %d degrees C" 1936 " exceeds maximum allowed. Hardware has been shut" 1937 " down\n", temp_val); 1938 status = QLA_FUNCTION_FAILED; 1939 return status; 1940 } else if (temp_state == QLA82XX_TEMP_WARN) { 1941 ql_log(ql_log_warn, vha, 0xb0d3, 1942 "Device temperature %d" 1943 " degrees C exceeds operating range." 1944 " Immediate action needed.\n", temp_val); 1945 } 1946 return 0; 1947 } 1948 1949 int qla8044_read_temperature(scsi_qla_host_t *vha) 1950 { 1951 uint32_t temp; 1952 1953 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); 1954 return qla82xx_get_temp_val(temp); 1955 } 1956 1957 /** 1958 * qla8044_check_fw_alive - Check firmware health 1959 * @ha: Pointer to host adapter structure. 1960 * 1961 * Context: Interrupt 1962 **/ 1963 int 1964 qla8044_check_fw_alive(struct scsi_qla_host *vha) 1965 { 1966 uint32_t fw_heartbeat_counter; 1967 uint32_t halt_status1, halt_status2; 1968 int status = QLA_SUCCESS; 1969 1970 fw_heartbeat_counter = qla8044_rd_direct(vha, 1971 QLA8044_PEG_ALIVE_COUNTER_INDEX); 1972 1973 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 1974 if (fw_heartbeat_counter == 0xffffffff) { 1975 ql_dbg(ql_dbg_p3p, vha, 0xb0d4, 1976 "scsi%ld: %s: Device in frozen " 1977 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 1978 vha->host_no, __func__); 1979 return status; 1980 } 1981 1982 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) { 1983 vha->seconds_since_last_heartbeat++; 1984 /* FW not alive after 2 seconds */ 1985 if (vha->seconds_since_last_heartbeat == 2) { 1986 vha->seconds_since_last_heartbeat = 0; 1987 halt_status1 = qla8044_rd_direct(vha, 1988 QLA8044_PEG_HALT_STATUS1_INDEX); 1989 halt_status2 = qla8044_rd_direct(vha, 1990 QLA8044_PEG_HALT_STATUS2_INDEX); 1991 1992 ql_log(ql_log_info, vha, 0xb0d5, 1993 "scsi(%ld): %s, ISP8044 " 1994 "Dumping hw/fw registers:\n" 1995 " PEG_HALT_STATUS1: 0x%x, " 1996 "PEG_HALT_STATUS2: 0x%x,\n", 1997 vha->host_no, __func__, halt_status1, 1998 halt_status2); 1999 status = QLA_FUNCTION_FAILED; 2000 } 2001 } else 2002 vha->seconds_since_last_heartbeat = 0; 2003 2004 vha->fw_heartbeat_counter = fw_heartbeat_counter; 2005 return status; 2006 } 2007 2008 void 2009 qla8044_watchdog(struct scsi_qla_host *vha) 2010 { 2011 uint32_t dev_state, halt_status; 2012 int halt_status_unrecoverable = 0; 2013 struct qla_hw_data *ha = vha->hw; 2014 2015 /* don't poll if reset is going on or FW hang in quiescent state */ 2016 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || 2017 test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) { 2018 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 2019 2020 if (qla8044_check_temp(vha)) { 2021 set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags); 2022 ha->flags.isp82xx_fw_hung = 1; 2023 qla2xxx_wake_dpc(vha); 2024 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2025 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) { 2026 ql_log(ql_log_info, vha, 0xb0d6, 2027 "%s: HW State: NEED RESET!\n", 2028 __func__); 2029 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2030 qla2xxx_wake_dpc(vha); 2031 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 2032 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) { 2033 ql_log(ql_log_info, vha, 0xb0d7, 2034 "%s: HW State: NEED QUIES detected!\n", 2035 __func__); 2036 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 2037 qla2xxx_wake_dpc(vha); 2038 } else { 2039 /* Check firmware health */ 2040 if (qla8044_check_fw_alive(vha)) { 2041 halt_status = qla8044_rd_direct(vha, 2042 QLA8044_PEG_HALT_STATUS1_INDEX); 2043 if (halt_status & 2044 QLA8044_HALT_STATUS_FW_RESET) { 2045 ql_log(ql_log_fatal, vha, 2046 0xb0d8, "%s: Firmware " 2047 "error detected device " 2048 "is being reset\n", 2049 __func__); 2050 } else if (halt_status & 2051 QLA8044_HALT_STATUS_UNRECOVERABLE) { 2052 halt_status_unrecoverable = 1; 2053 } 2054 2055 /* Since we cannot change dev_state in interrupt 2056 * context, set appropriate DPC flag then wakeup 2057 * DPC */ 2058 if (halt_status_unrecoverable) { 2059 set_bit(ISP_UNRECOVERABLE, 2060 &vha->dpc_flags); 2061 } else { 2062 if (dev_state == 2063 QLA8XXX_DEV_QUIESCENT) { 2064 set_bit(FCOE_CTX_RESET_NEEDED, 2065 &vha->dpc_flags); 2066 ql_log(ql_log_info, vha, 0xb0d9, 2067 "%s: FW CONTEXT Reset " 2068 "needed!\n", __func__); 2069 } else { 2070 ql_log(ql_log_info, vha, 2071 0xb0da, "%s: " 2072 "detect abort needed\n", 2073 __func__); 2074 set_bit(ISP_ABORT_NEEDED, 2075 &vha->dpc_flags); 2076 qla82xx_clear_pending_mbx(vha); 2077 } 2078 } 2079 ha->flags.isp82xx_fw_hung = 1; 2080 ql_log(ql_log_warn, vha, 0xb10a, 2081 "Firmware hung.\n"); 2082 qla2xxx_wake_dpc(vha); 2083 } 2084 } 2085 2086 } 2087 } 2088 2089 static int 2090 qla8044_minidump_process_control(struct scsi_qla_host *vha, 2091 struct qla8044_minidump_entry_hdr *entry_hdr) 2092 { 2093 struct qla8044_minidump_entry_crb *crb_entry; 2094 uint32_t read_value, opcode, poll_time, addr, index; 2095 uint32_t crb_addr, rval = QLA_SUCCESS; 2096 unsigned long wtime; 2097 struct qla8044_minidump_template_hdr *tmplt_hdr; 2098 int i; 2099 struct qla_hw_data *ha = vha->hw; 2100 2101 ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__); 2102 tmplt_hdr = (struct qla8044_minidump_template_hdr *) 2103 ha->md_tmplt_hdr; 2104 crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr; 2105 2106 crb_addr = crb_entry->addr; 2107 for (i = 0; i < crb_entry->op_count; i++) { 2108 opcode = crb_entry->crb_ctrl.opcode; 2109 2110 if (opcode & QLA82XX_DBG_OPCODE_WR) { 2111 qla8044_wr_reg_indirect(vha, crb_addr, 2112 crb_entry->value_1); 2113 opcode &= ~QLA82XX_DBG_OPCODE_WR; 2114 } 2115 2116 if (opcode & QLA82XX_DBG_OPCODE_RW) { 2117 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2118 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2119 opcode &= ~QLA82XX_DBG_OPCODE_RW; 2120 } 2121 2122 if (opcode & QLA82XX_DBG_OPCODE_AND) { 2123 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2124 read_value &= crb_entry->value_2; 2125 opcode &= ~QLA82XX_DBG_OPCODE_AND; 2126 if (opcode & QLA82XX_DBG_OPCODE_OR) { 2127 read_value |= crb_entry->value_3; 2128 opcode &= ~QLA82XX_DBG_OPCODE_OR; 2129 } 2130 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2131 } 2132 if (opcode & QLA82XX_DBG_OPCODE_OR) { 2133 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2134 read_value |= crb_entry->value_3; 2135 qla8044_wr_reg_indirect(vha, crb_addr, read_value); 2136 opcode &= ~QLA82XX_DBG_OPCODE_OR; 2137 } 2138 if (opcode & QLA82XX_DBG_OPCODE_POLL) { 2139 poll_time = crb_entry->crb_strd.poll_timeout; 2140 wtime = jiffies + poll_time; 2141 qla8044_rd_reg_indirect(vha, crb_addr, &read_value); 2142 2143 do { 2144 if ((read_value & crb_entry->value_2) == 2145 crb_entry->value_1) { 2146 break; 2147 } else if (time_after_eq(jiffies, wtime)) { 2148 /* capturing dump failed */ 2149 rval = QLA_FUNCTION_FAILED; 2150 break; 2151 } else { 2152 qla8044_rd_reg_indirect(vha, 2153 crb_addr, &read_value); 2154 } 2155 } while (1); 2156 opcode &= ~QLA82XX_DBG_OPCODE_POLL; 2157 } 2158 2159 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) { 2160 if (crb_entry->crb_strd.state_index_a) { 2161 index = crb_entry->crb_strd.state_index_a; 2162 addr = tmplt_hdr->saved_state_array[index]; 2163 } else { 2164 addr = crb_addr; 2165 } 2166 2167 qla8044_rd_reg_indirect(vha, addr, &read_value); 2168 index = crb_entry->crb_ctrl.state_index_v; 2169 tmplt_hdr->saved_state_array[index] = read_value; 2170 opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE; 2171 } 2172 2173 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) { 2174 if (crb_entry->crb_strd.state_index_a) { 2175 index = crb_entry->crb_strd.state_index_a; 2176 addr = tmplt_hdr->saved_state_array[index]; 2177 } else { 2178 addr = crb_addr; 2179 } 2180 2181 if (crb_entry->crb_ctrl.state_index_v) { 2182 index = crb_entry->crb_ctrl.state_index_v; 2183 read_value = 2184 tmplt_hdr->saved_state_array[index]; 2185 } else { 2186 read_value = crb_entry->value_1; 2187 } 2188 2189 qla8044_wr_reg_indirect(vha, addr, read_value); 2190 opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE; 2191 } 2192 2193 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) { 2194 index = crb_entry->crb_ctrl.state_index_v; 2195 read_value = tmplt_hdr->saved_state_array[index]; 2196 read_value <<= crb_entry->crb_ctrl.shl; 2197 read_value >>= crb_entry->crb_ctrl.shr; 2198 if (crb_entry->value_2) 2199 read_value &= crb_entry->value_2; 2200 read_value |= crb_entry->value_3; 2201 read_value += crb_entry->value_1; 2202 tmplt_hdr->saved_state_array[index] = read_value; 2203 opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE; 2204 } 2205 crb_addr += crb_entry->crb_strd.addr_stride; 2206 } 2207 return rval; 2208 } 2209 2210 static void 2211 qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha, 2212 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2213 { 2214 uint32_t r_addr, r_stride, loop_cnt, i, r_value; 2215 struct qla8044_minidump_entry_crb *crb_hdr; 2216 uint32_t *data_ptr = *d_ptr; 2217 2218 ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__); 2219 crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr; 2220 r_addr = crb_hdr->addr; 2221 r_stride = crb_hdr->crb_strd.addr_stride; 2222 loop_cnt = crb_hdr->op_count; 2223 2224 for (i = 0; i < loop_cnt; i++) { 2225 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2226 *data_ptr++ = r_addr; 2227 *data_ptr++ = r_value; 2228 r_addr += r_stride; 2229 } 2230 *d_ptr = data_ptr; 2231 } 2232 2233 static int 2234 qla8044_minidump_process_rdmem(struct scsi_qla_host *vha, 2235 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2236 { 2237 uint32_t r_addr, r_value, r_data; 2238 uint32_t i, j, loop_cnt; 2239 struct qla8044_minidump_entry_rdmem *m_hdr; 2240 unsigned long flags; 2241 uint32_t *data_ptr = *d_ptr; 2242 struct qla_hw_data *ha = vha->hw; 2243 2244 ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__); 2245 m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr; 2246 r_addr = m_hdr->read_addr; 2247 loop_cnt = m_hdr->read_data_size/16; 2248 2249 ql_dbg(ql_dbg_p3p, vha, 0xb0f0, 2250 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n", 2251 __func__, r_addr, m_hdr->read_data_size); 2252 2253 if (r_addr & 0xf) { 2254 ql_dbg(ql_dbg_p3p, vha, 0xb0f1, 2255 "[%s]: Read addr 0x%x not 16 bytes aligned\n", 2256 __func__, r_addr); 2257 return QLA_FUNCTION_FAILED; 2258 } 2259 2260 if (m_hdr->read_data_size % 16) { 2261 ql_dbg(ql_dbg_p3p, vha, 0xb0f2, 2262 "[%s]: Read data[0x%x] not multiple of 16 bytes\n", 2263 __func__, m_hdr->read_data_size); 2264 return QLA_FUNCTION_FAILED; 2265 } 2266 2267 ql_dbg(ql_dbg_p3p, vha, 0xb0f3, 2268 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n", 2269 __func__, r_addr, m_hdr->read_data_size, loop_cnt); 2270 2271 write_lock_irqsave(&ha->hw_lock, flags); 2272 for (i = 0; i < loop_cnt; i++) { 2273 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr); 2274 r_value = 0; 2275 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value); 2276 r_value = MIU_TA_CTL_ENABLE; 2277 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); 2278 r_value = MIU_TA_CTL_START_ENABLE; 2279 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); 2280 2281 for (j = 0; j < MAX_CTL_CHECK; j++) { 2282 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, 2283 &r_value); 2284 if ((r_value & MIU_TA_CTL_BUSY) == 0) 2285 break; 2286 } 2287 2288 if (j >= MAX_CTL_CHECK) { 2289 printk_ratelimited(KERN_ERR 2290 "%s: failed to read through agent\n", __func__); 2291 write_unlock_irqrestore(&ha->hw_lock, flags); 2292 return QLA_SUCCESS; 2293 } 2294 2295 for (j = 0; j < 4; j++) { 2296 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j], 2297 &r_data); 2298 *data_ptr++ = r_data; 2299 } 2300 2301 r_addr += 16; 2302 } 2303 write_unlock_irqrestore(&ha->hw_lock, flags); 2304 2305 ql_dbg(ql_dbg_p3p, vha, 0xb0f4, 2306 "Leaving fn: %s datacount: 0x%x\n", 2307 __func__, (loop_cnt * 16)); 2308 2309 *d_ptr = data_ptr; 2310 return QLA_SUCCESS; 2311 } 2312 2313 /* ISP83xx flash read for _RDROM _BOARD */ 2314 static uint32_t 2315 qla8044_minidump_process_rdrom(struct scsi_qla_host *vha, 2316 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2317 { 2318 uint32_t fl_addr, u32_count, rval; 2319 struct qla8044_minidump_entry_rdrom *rom_hdr; 2320 uint32_t *data_ptr = *d_ptr; 2321 2322 rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr; 2323 fl_addr = rom_hdr->read_addr; 2324 u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t); 2325 2326 ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n", 2327 __func__, fl_addr, u32_count); 2328 2329 rval = qla8044_lockless_flash_read_u32(vha, fl_addr, 2330 (u8 *)(data_ptr), u32_count); 2331 2332 if (rval != QLA_SUCCESS) { 2333 ql_log(ql_log_fatal, vha, 0xb0f6, 2334 "%s: Flash Read Error,Count=%d\n", __func__, u32_count); 2335 return QLA_FUNCTION_FAILED; 2336 } else { 2337 data_ptr += u32_count; 2338 *d_ptr = data_ptr; 2339 return QLA_SUCCESS; 2340 } 2341 } 2342 2343 static void 2344 qla8044_mark_entry_skipped(struct scsi_qla_host *vha, 2345 struct qla8044_minidump_entry_hdr *entry_hdr, int index) 2346 { 2347 entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG; 2348 2349 ql_log(ql_log_info, vha, 0xb0f7, 2350 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n", 2351 vha->host_no, index, entry_hdr->entry_type, 2352 entry_hdr->d_ctrl.entry_capture_mask); 2353 } 2354 2355 static int 2356 qla8044_minidump_process_l2tag(struct scsi_qla_host *vha, 2357 struct qla8044_minidump_entry_hdr *entry_hdr, 2358 uint32_t **d_ptr) 2359 { 2360 uint32_t addr, r_addr, c_addr, t_r_addr; 2361 uint32_t i, k, loop_count, t_value, r_cnt, r_value; 2362 unsigned long p_wait, w_time, p_mask; 2363 uint32_t c_value_w, c_value_r; 2364 struct qla8044_minidump_entry_cache *cache_hdr; 2365 int rval = QLA_FUNCTION_FAILED; 2366 uint32_t *data_ptr = *d_ptr; 2367 2368 ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__); 2369 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; 2370 2371 loop_count = cache_hdr->op_count; 2372 r_addr = cache_hdr->read_addr; 2373 c_addr = cache_hdr->control_addr; 2374 c_value_w = cache_hdr->cache_ctrl.write_value; 2375 2376 t_r_addr = cache_hdr->tag_reg_addr; 2377 t_value = cache_hdr->addr_ctrl.init_tag_value; 2378 r_cnt = cache_hdr->read_ctrl.read_addr_cnt; 2379 p_wait = cache_hdr->cache_ctrl.poll_wait; 2380 p_mask = cache_hdr->cache_ctrl.poll_mask; 2381 2382 for (i = 0; i < loop_count; i++) { 2383 qla8044_wr_reg_indirect(vha, t_r_addr, t_value); 2384 if (c_value_w) 2385 qla8044_wr_reg_indirect(vha, c_addr, c_value_w); 2386 2387 if (p_mask) { 2388 w_time = jiffies + p_wait; 2389 do { 2390 qla8044_rd_reg_indirect(vha, c_addr, 2391 &c_value_r); 2392 if ((c_value_r & p_mask) == 0) { 2393 break; 2394 } else if (time_after_eq(jiffies, w_time)) { 2395 /* capturing dump failed */ 2396 return rval; 2397 } 2398 } while (1); 2399 } 2400 2401 addr = r_addr; 2402 for (k = 0; k < r_cnt; k++) { 2403 qla8044_rd_reg_indirect(vha, addr, &r_value); 2404 *data_ptr++ = r_value; 2405 addr += cache_hdr->read_ctrl.read_addr_stride; 2406 } 2407 t_value += cache_hdr->addr_ctrl.tag_value_stride; 2408 } 2409 *d_ptr = data_ptr; 2410 return QLA_SUCCESS; 2411 } 2412 2413 static void 2414 qla8044_minidump_process_l1cache(struct scsi_qla_host *vha, 2415 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2416 { 2417 uint32_t addr, r_addr, c_addr, t_r_addr; 2418 uint32_t i, k, loop_count, t_value, r_cnt, r_value; 2419 uint32_t c_value_w; 2420 struct qla8044_minidump_entry_cache *cache_hdr; 2421 uint32_t *data_ptr = *d_ptr; 2422 2423 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; 2424 loop_count = cache_hdr->op_count; 2425 r_addr = cache_hdr->read_addr; 2426 c_addr = cache_hdr->control_addr; 2427 c_value_w = cache_hdr->cache_ctrl.write_value; 2428 2429 t_r_addr = cache_hdr->tag_reg_addr; 2430 t_value = cache_hdr->addr_ctrl.init_tag_value; 2431 r_cnt = cache_hdr->read_ctrl.read_addr_cnt; 2432 2433 for (i = 0; i < loop_count; i++) { 2434 qla8044_wr_reg_indirect(vha, t_r_addr, t_value); 2435 qla8044_wr_reg_indirect(vha, c_addr, c_value_w); 2436 addr = r_addr; 2437 for (k = 0; k < r_cnt; k++) { 2438 qla8044_rd_reg_indirect(vha, addr, &r_value); 2439 *data_ptr++ = r_value; 2440 addr += cache_hdr->read_ctrl.read_addr_stride; 2441 } 2442 t_value += cache_hdr->addr_ctrl.tag_value_stride; 2443 } 2444 *d_ptr = data_ptr; 2445 } 2446 2447 static void 2448 qla8044_minidump_process_rdocm(struct scsi_qla_host *vha, 2449 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2450 { 2451 uint32_t r_addr, r_stride, loop_cnt, i, r_value; 2452 struct qla8044_minidump_entry_rdocm *ocm_hdr; 2453 uint32_t *data_ptr = *d_ptr; 2454 struct qla_hw_data *ha = vha->hw; 2455 2456 ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__); 2457 2458 ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr; 2459 r_addr = ocm_hdr->read_addr; 2460 r_stride = ocm_hdr->read_addr_stride; 2461 loop_cnt = ocm_hdr->op_count; 2462 2463 ql_dbg(ql_dbg_p3p, vha, 0xb0fa, 2464 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n", 2465 __func__, r_addr, r_stride, loop_cnt); 2466 2467 for (i = 0; i < loop_cnt; i++) { 2468 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase)); 2469 *data_ptr++ = r_value; 2470 r_addr += r_stride; 2471 } 2472 ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n", 2473 __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))); 2474 2475 *d_ptr = data_ptr; 2476 } 2477 2478 static void 2479 qla8044_minidump_process_rdmux(struct scsi_qla_host *vha, 2480 struct qla8044_minidump_entry_hdr *entry_hdr, 2481 uint32_t **d_ptr) 2482 { 2483 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value; 2484 struct qla8044_minidump_entry_mux *mux_hdr; 2485 uint32_t *data_ptr = *d_ptr; 2486 2487 ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__); 2488 2489 mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr; 2490 r_addr = mux_hdr->read_addr; 2491 s_addr = mux_hdr->select_addr; 2492 s_stride = mux_hdr->select_value_stride; 2493 s_value = mux_hdr->select_value; 2494 loop_cnt = mux_hdr->op_count; 2495 2496 for (i = 0; i < loop_cnt; i++) { 2497 qla8044_wr_reg_indirect(vha, s_addr, s_value); 2498 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2499 *data_ptr++ = s_value; 2500 *data_ptr++ = r_value; 2501 s_value += s_stride; 2502 } 2503 *d_ptr = data_ptr; 2504 } 2505 2506 static void 2507 qla8044_minidump_process_queue(struct scsi_qla_host *vha, 2508 struct qla8044_minidump_entry_hdr *entry_hdr, 2509 uint32_t **d_ptr) 2510 { 2511 uint32_t s_addr, r_addr; 2512 uint32_t r_stride, r_value, r_cnt, qid = 0; 2513 uint32_t i, k, loop_cnt; 2514 struct qla8044_minidump_entry_queue *q_hdr; 2515 uint32_t *data_ptr = *d_ptr; 2516 2517 ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__); 2518 q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr; 2519 s_addr = q_hdr->select_addr; 2520 r_cnt = q_hdr->rd_strd.read_addr_cnt; 2521 r_stride = q_hdr->rd_strd.read_addr_stride; 2522 loop_cnt = q_hdr->op_count; 2523 2524 for (i = 0; i < loop_cnt; i++) { 2525 qla8044_wr_reg_indirect(vha, s_addr, qid); 2526 r_addr = q_hdr->read_addr; 2527 for (k = 0; k < r_cnt; k++) { 2528 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2529 *data_ptr++ = r_value; 2530 r_addr += r_stride; 2531 } 2532 qid += q_hdr->q_strd.queue_id_stride; 2533 } 2534 *d_ptr = data_ptr; 2535 } 2536 2537 /* ISP83xx functions to process new minidump entries... */ 2538 static uint32_t 2539 qla8044_minidump_process_pollrd(struct scsi_qla_host *vha, 2540 struct qla8044_minidump_entry_hdr *entry_hdr, 2541 uint32_t **d_ptr) 2542 { 2543 uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask; 2544 uint16_t s_stride, i; 2545 struct qla8044_minidump_entry_pollrd *pollrd_hdr; 2546 uint32_t *data_ptr = *d_ptr; 2547 2548 pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr; 2549 s_addr = pollrd_hdr->select_addr; 2550 r_addr = pollrd_hdr->read_addr; 2551 s_value = pollrd_hdr->select_value; 2552 s_stride = pollrd_hdr->select_value_stride; 2553 2554 poll_wait = pollrd_hdr->poll_wait; 2555 poll_mask = pollrd_hdr->poll_mask; 2556 2557 for (i = 0; i < pollrd_hdr->op_count; i++) { 2558 qla8044_wr_reg_indirect(vha, s_addr, s_value); 2559 poll_wait = pollrd_hdr->poll_wait; 2560 while (1) { 2561 qla8044_rd_reg_indirect(vha, s_addr, &r_value); 2562 if ((r_value & poll_mask) != 0) { 2563 break; 2564 } else { 2565 usleep_range(1000, 1100); 2566 if (--poll_wait == 0) { 2567 ql_log(ql_log_fatal, vha, 0xb0fe, 2568 "%s: TIMEOUT\n", __func__); 2569 goto error; 2570 } 2571 } 2572 } 2573 qla8044_rd_reg_indirect(vha, r_addr, &r_value); 2574 *data_ptr++ = s_value; 2575 *data_ptr++ = r_value; 2576 2577 s_value += s_stride; 2578 } 2579 *d_ptr = data_ptr; 2580 return QLA_SUCCESS; 2581 2582 error: 2583 return QLA_FUNCTION_FAILED; 2584 } 2585 2586 static void 2587 qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha, 2588 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2589 { 2590 uint32_t sel_val1, sel_val2, t_sel_val, data, i; 2591 uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr; 2592 struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr; 2593 uint32_t *data_ptr = *d_ptr; 2594 2595 rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr; 2596 sel_val1 = rdmux2_hdr->select_value_1; 2597 sel_val2 = rdmux2_hdr->select_value_2; 2598 sel_addr1 = rdmux2_hdr->select_addr_1; 2599 sel_addr2 = rdmux2_hdr->select_addr_2; 2600 sel_val_mask = rdmux2_hdr->select_value_mask; 2601 read_addr = rdmux2_hdr->read_addr; 2602 2603 for (i = 0; i < rdmux2_hdr->op_count; i++) { 2604 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1); 2605 t_sel_val = sel_val1 & sel_val_mask; 2606 *data_ptr++ = t_sel_val; 2607 2608 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); 2609 qla8044_rd_reg_indirect(vha, read_addr, &data); 2610 2611 *data_ptr++ = data; 2612 2613 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2); 2614 t_sel_val = sel_val2 & sel_val_mask; 2615 *data_ptr++ = t_sel_val; 2616 2617 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); 2618 qla8044_rd_reg_indirect(vha, read_addr, &data); 2619 2620 *data_ptr++ = data; 2621 2622 sel_val1 += rdmux2_hdr->select_value_stride; 2623 sel_val2 += rdmux2_hdr->select_value_stride; 2624 } 2625 2626 *d_ptr = data_ptr; 2627 } 2628 2629 static uint32_t 2630 qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha, 2631 struct qla8044_minidump_entry_hdr *entry_hdr, 2632 uint32_t **d_ptr) 2633 { 2634 uint32_t poll_wait, poll_mask, r_value, data; 2635 uint32_t addr_1, addr_2, value_1, value_2; 2636 struct qla8044_minidump_entry_pollrdmwr *poll_hdr; 2637 uint32_t *data_ptr = *d_ptr; 2638 2639 poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr; 2640 addr_1 = poll_hdr->addr_1; 2641 addr_2 = poll_hdr->addr_2; 2642 value_1 = poll_hdr->value_1; 2643 value_2 = poll_hdr->value_2; 2644 poll_mask = poll_hdr->poll_mask; 2645 2646 qla8044_wr_reg_indirect(vha, addr_1, value_1); 2647 2648 poll_wait = poll_hdr->poll_wait; 2649 while (1) { 2650 qla8044_rd_reg_indirect(vha, addr_1, &r_value); 2651 2652 if ((r_value & poll_mask) != 0) { 2653 break; 2654 } else { 2655 usleep_range(1000, 1100); 2656 if (--poll_wait == 0) { 2657 ql_log(ql_log_fatal, vha, 0xb0ff, 2658 "%s: TIMEOUT\n", __func__); 2659 goto error; 2660 } 2661 } 2662 } 2663 2664 qla8044_rd_reg_indirect(vha, addr_2, &data); 2665 data &= poll_hdr->modify_mask; 2666 qla8044_wr_reg_indirect(vha, addr_2, data); 2667 qla8044_wr_reg_indirect(vha, addr_1, value_2); 2668 2669 poll_wait = poll_hdr->poll_wait; 2670 while (1) { 2671 qla8044_rd_reg_indirect(vha, addr_1, &r_value); 2672 2673 if ((r_value & poll_mask) != 0) { 2674 break; 2675 } else { 2676 usleep_range(1000, 1100); 2677 if (--poll_wait == 0) { 2678 ql_log(ql_log_fatal, vha, 0xb100, 2679 "%s: TIMEOUT2\n", __func__); 2680 goto error; 2681 } 2682 } 2683 } 2684 2685 *data_ptr++ = addr_2; 2686 *data_ptr++ = data; 2687 2688 *d_ptr = data_ptr; 2689 2690 return QLA_SUCCESS; 2691 2692 error: 2693 return QLA_FUNCTION_FAILED; 2694 } 2695 2696 #define ISP8044_PEX_DMA_ENGINE_INDEX 8 2697 #define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000 2698 #define ISP8044_PEX_DMA_NUM_OFFSET 0x10000 2699 #define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0 2700 #define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04 2701 #define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08 2702 2703 #define ISP8044_PEX_DMA_READ_SIZE (16 * 1024) 2704 #define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */ 2705 2706 static int 2707 qla8044_check_dma_engine_state(struct scsi_qla_host *vha) 2708 { 2709 struct qla_hw_data *ha = vha->hw; 2710 int rval = QLA_SUCCESS; 2711 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; 2712 uint64_t dma_base_addr = 0; 2713 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; 2714 2715 tmplt_hdr = ha->md_tmplt_hdr; 2716 dma_eng_num = 2717 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; 2718 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + 2719 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); 2720 2721 /* Read the pex-dma's command-status-and-control register. */ 2722 rval = qla8044_rd_reg_indirect(vha, 2723 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), 2724 &cmd_sts_and_cntrl); 2725 if (rval) 2726 return QLA_FUNCTION_FAILED; 2727 2728 /* Check if requested pex-dma engine is available. */ 2729 if (cmd_sts_and_cntrl & BIT_31) 2730 return QLA_SUCCESS; 2731 2732 return QLA_FUNCTION_FAILED; 2733 } 2734 2735 static int 2736 qla8044_start_pex_dma(struct scsi_qla_host *vha, 2737 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr) 2738 { 2739 struct qla_hw_data *ha = vha->hw; 2740 int rval = QLA_SUCCESS, wait = 0; 2741 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; 2742 uint64_t dma_base_addr = 0; 2743 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; 2744 2745 tmplt_hdr = ha->md_tmplt_hdr; 2746 dma_eng_num = 2747 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; 2748 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + 2749 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); 2750 2751 rval = qla8044_wr_reg_indirect(vha, 2752 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW, 2753 m_hdr->desc_card_addr); 2754 if (rval) 2755 goto error_exit; 2756 2757 rval = qla8044_wr_reg_indirect(vha, 2758 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0); 2759 if (rval) 2760 goto error_exit; 2761 2762 rval = qla8044_wr_reg_indirect(vha, 2763 dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL, 2764 m_hdr->start_dma_cmd); 2765 if (rval) 2766 goto error_exit; 2767 2768 /* Wait for dma operation to complete. */ 2769 for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) { 2770 rval = qla8044_rd_reg_indirect(vha, 2771 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), 2772 &cmd_sts_and_cntrl); 2773 if (rval) 2774 goto error_exit; 2775 2776 if ((cmd_sts_and_cntrl & BIT_1) == 0) 2777 break; 2778 2779 udelay(10); 2780 } 2781 2782 /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */ 2783 if (wait >= ISP8044_PEX_DMA_MAX_WAIT) { 2784 rval = QLA_FUNCTION_FAILED; 2785 goto error_exit; 2786 } 2787 2788 error_exit: 2789 return rval; 2790 } 2791 2792 static int 2793 qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha, 2794 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) 2795 { 2796 struct qla_hw_data *ha = vha->hw; 2797 int rval = QLA_SUCCESS; 2798 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL; 2799 uint32_t chunk_size, read_size; 2800 uint8_t *data_ptr = (uint8_t *)*d_ptr; 2801 void *rdmem_buffer = NULL; 2802 dma_addr_t rdmem_dma; 2803 struct qla8044_pex_dma_descriptor dma_desc; 2804 2805 rval = qla8044_check_dma_engine_state(vha); 2806 if (rval != QLA_SUCCESS) { 2807 ql_dbg(ql_dbg_p3p, vha, 0xb147, 2808 "DMA engine not available. Fallback to rdmem-read.\n"); 2809 return QLA_FUNCTION_FAILED; 2810 } 2811 2812 m_hdr = (void *)entry_hdr; 2813 2814 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, 2815 ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL); 2816 if (!rdmem_buffer) { 2817 ql_dbg(ql_dbg_p3p, vha, 0xb148, 2818 "Unable to allocate rdmem dma buffer\n"); 2819 return QLA_FUNCTION_FAILED; 2820 } 2821 2822 /* Prepare pex-dma descriptor to be written to MS memory. */ 2823 /* dma-desc-cmd layout: 2824 * 0-3: dma-desc-cmd 0-3 2825 * 4-7: pcid function number 2826 * 8-15: dma-desc-cmd 8-15 2827 * dma_bus_addr: dma buffer address 2828 * cmd.read_data_size: amount of data-chunk to be read. 2829 */ 2830 dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f); 2831 dma_desc.cmd.dma_desc_cmd |= 2832 ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4); 2833 2834 dma_desc.dma_bus_addr = rdmem_dma; 2835 dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE; 2836 read_size = 0; 2837 2838 /* 2839 * Perform rdmem operation using pex-dma. 2840 * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE. 2841 */ 2842 while (read_size < m_hdr->read_data_size) { 2843 if (m_hdr->read_data_size - read_size < 2844 ISP8044_PEX_DMA_READ_SIZE) { 2845 chunk_size = (m_hdr->read_data_size - read_size); 2846 dma_desc.cmd.read_data_size = chunk_size; 2847 } 2848 2849 dma_desc.src_addr = m_hdr->read_addr + read_size; 2850 2851 /* Prepare: Write pex-dma descriptor to MS memory. */ 2852 rval = qla8044_ms_mem_write_128b(vha, 2853 m_hdr->desc_card_addr, (void *)&dma_desc, 2854 (sizeof(struct qla8044_pex_dma_descriptor)/16)); 2855 if (rval) { 2856 ql_log(ql_log_warn, vha, 0xb14a, 2857 "%s: Error writing rdmem-dma-init to MS !!!\n", 2858 __func__); 2859 goto error_exit; 2860 } 2861 ql_dbg(ql_dbg_p3p, vha, 0xb14b, 2862 "%s: Dma-descriptor: Instruct for rdmem dma " 2863 "(chunk_size 0x%x).\n", __func__, chunk_size); 2864 2865 /* Execute: Start pex-dma operation. */ 2866 rval = qla8044_start_pex_dma(vha, m_hdr); 2867 if (rval) 2868 goto error_exit; 2869 2870 memcpy(data_ptr, rdmem_buffer, chunk_size); 2871 data_ptr += chunk_size; 2872 read_size += chunk_size; 2873 } 2874 2875 *d_ptr = (void *)data_ptr; 2876 2877 error_exit: 2878 if (rdmem_buffer) 2879 dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE, 2880 rdmem_buffer, rdmem_dma); 2881 2882 return rval; 2883 } 2884 2885 /* 2886 * 2887 * qla8044_collect_md_data - Retrieve firmware minidump data. 2888 * @ha: pointer to adapter structure 2889 **/ 2890 int 2891 qla8044_collect_md_data(struct scsi_qla_host *vha) 2892 { 2893 int num_entry_hdr = 0; 2894 struct qla8044_minidump_entry_hdr *entry_hdr; 2895 struct qla8044_minidump_template_hdr *tmplt_hdr; 2896 uint32_t *data_ptr; 2897 uint32_t data_collected = 0, f_capture_mask; 2898 int i, rval = QLA_FUNCTION_FAILED; 2899 uint64_t now; 2900 uint32_t timestamp, idc_control; 2901 struct qla_hw_data *ha = vha->hw; 2902 2903 if (!ha->md_dump) { 2904 ql_log(ql_log_info, vha, 0xb101, 2905 "%s(%ld) No buffer to dump\n", 2906 __func__, vha->host_no); 2907 return rval; 2908 } 2909 2910 if (ha->fw_dumped) { 2911 ql_log(ql_log_warn, vha, 0xb10d, 2912 "Firmware has been previously dumped (%p) " 2913 "-- ignoring request.\n", ha->fw_dump); 2914 goto md_failed; 2915 } 2916 2917 ha->fw_dumped = 0; 2918 2919 if (!ha->md_tmplt_hdr || !ha->md_dump) { 2920 ql_log(ql_log_warn, vha, 0xb10e, 2921 "Memory not allocated for minidump capture\n"); 2922 goto md_failed; 2923 } 2924 2925 qla8044_idc_lock(ha); 2926 idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 2927 if (idc_control & GRACEFUL_RESET_BIT1) { 2928 ql_log(ql_log_warn, vha, 0xb112, 2929 "Forced reset from application, " 2930 "ignore minidump capture\n"); 2931 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, 2932 (idc_control & ~GRACEFUL_RESET_BIT1)); 2933 qla8044_idc_unlock(ha); 2934 2935 goto md_failed; 2936 } 2937 qla8044_idc_unlock(ha); 2938 2939 if (qla82xx_validate_template_chksum(vha)) { 2940 ql_log(ql_log_info, vha, 0xb109, 2941 "Template checksum validation error\n"); 2942 goto md_failed; 2943 } 2944 2945 tmplt_hdr = (struct qla8044_minidump_template_hdr *) 2946 ha->md_tmplt_hdr; 2947 data_ptr = (uint32_t *)((uint8_t *)ha->md_dump); 2948 num_entry_hdr = tmplt_hdr->num_of_entries; 2949 2950 ql_dbg(ql_dbg_p3p, vha, 0xb11a, 2951 "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level); 2952 2953 f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF; 2954 2955 /* Validate whether required debug level is set */ 2956 if ((f_capture_mask & 0x3) != 0x3) { 2957 ql_log(ql_log_warn, vha, 0xb10f, 2958 "Minimum required capture mask[0x%x] level not set\n", 2959 f_capture_mask); 2960 2961 } 2962 tmplt_hdr->driver_capture_mask = ql2xmdcapmask; 2963 ql_log(ql_log_info, vha, 0xb102, 2964 "[%s]: starting data ptr: %p\n", 2965 __func__, data_ptr); 2966 ql_log(ql_log_info, vha, 0xb10b, 2967 "[%s]: no of entry headers in Template: 0x%x\n", 2968 __func__, num_entry_hdr); 2969 ql_log(ql_log_info, vha, 0xb10c, 2970 "[%s]: Total_data_size 0x%x, %d obtained\n", 2971 __func__, ha->md_dump_size, ha->md_dump_size); 2972 2973 /* Update current timestamp before taking dump */ 2974 now = get_jiffies_64(); 2975 timestamp = (u32)(jiffies_to_msecs(now) / 1000); 2976 tmplt_hdr->driver_timestamp = timestamp; 2977 2978 entry_hdr = (struct qla8044_minidump_entry_hdr *) 2979 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset); 2980 tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] = 2981 tmplt_hdr->ocm_window_reg[ha->portnum]; 2982 2983 /* Walk through the entry headers - validate/perform required action */ 2984 for (i = 0; i < num_entry_hdr; i++) { 2985 if (data_collected > ha->md_dump_size) { 2986 ql_log(ql_log_info, vha, 0xb103, 2987 "Data collected: [0x%x], " 2988 "Total Dump size: [0x%x]\n", 2989 data_collected, ha->md_dump_size); 2990 return rval; 2991 } 2992 2993 if (!(entry_hdr->d_ctrl.entry_capture_mask & 2994 ql2xmdcapmask)) { 2995 entry_hdr->d_ctrl.driver_flags |= 2996 QLA82XX_DBG_SKIPPED_FLAG; 2997 goto skip_nxt_entry; 2998 } 2999 3000 ql_dbg(ql_dbg_p3p, vha, 0xb104, 3001 "Data collected: [0x%x], Dump size left:[0x%x]\n", 3002 data_collected, 3003 (ha->md_dump_size - data_collected)); 3004 3005 /* Decode the entry type and take required action to capture 3006 * debug data 3007 */ 3008 switch (entry_hdr->entry_type) { 3009 case QLA82XX_RDEND: 3010 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3011 break; 3012 case QLA82XX_CNTRL: 3013 rval = qla8044_minidump_process_control(vha, 3014 entry_hdr); 3015 if (rval != QLA_SUCCESS) { 3016 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3017 goto md_failed; 3018 } 3019 break; 3020 case QLA82XX_RDCRB: 3021 qla8044_minidump_process_rdcrb(vha, 3022 entry_hdr, &data_ptr); 3023 break; 3024 case QLA82XX_RDMEM: 3025 rval = qla8044_minidump_pex_dma_read(vha, 3026 entry_hdr, &data_ptr); 3027 if (rval != QLA_SUCCESS) { 3028 rval = qla8044_minidump_process_rdmem(vha, 3029 entry_hdr, &data_ptr); 3030 if (rval != QLA_SUCCESS) { 3031 qla8044_mark_entry_skipped(vha, 3032 entry_hdr, i); 3033 goto md_failed; 3034 } 3035 } 3036 break; 3037 case QLA82XX_BOARD: 3038 case QLA82XX_RDROM: 3039 rval = qla8044_minidump_process_rdrom(vha, 3040 entry_hdr, &data_ptr); 3041 if (rval != QLA_SUCCESS) { 3042 qla8044_mark_entry_skipped(vha, 3043 entry_hdr, i); 3044 } 3045 break; 3046 case QLA82XX_L2DTG: 3047 case QLA82XX_L2ITG: 3048 case QLA82XX_L2DAT: 3049 case QLA82XX_L2INS: 3050 rval = qla8044_minidump_process_l2tag(vha, 3051 entry_hdr, &data_ptr); 3052 if (rval != QLA_SUCCESS) { 3053 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3054 goto md_failed; 3055 } 3056 break; 3057 case QLA8044_L1DTG: 3058 case QLA8044_L1ITG: 3059 case QLA82XX_L1DAT: 3060 case QLA82XX_L1INS: 3061 qla8044_minidump_process_l1cache(vha, 3062 entry_hdr, &data_ptr); 3063 break; 3064 case QLA82XX_RDOCM: 3065 qla8044_minidump_process_rdocm(vha, 3066 entry_hdr, &data_ptr); 3067 break; 3068 case QLA82XX_RDMUX: 3069 qla8044_minidump_process_rdmux(vha, 3070 entry_hdr, &data_ptr); 3071 break; 3072 case QLA82XX_QUEUE: 3073 qla8044_minidump_process_queue(vha, 3074 entry_hdr, &data_ptr); 3075 break; 3076 case QLA8044_POLLRD: 3077 rval = qla8044_minidump_process_pollrd(vha, 3078 entry_hdr, &data_ptr); 3079 if (rval != QLA_SUCCESS) 3080 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3081 break; 3082 case QLA8044_RDMUX2: 3083 qla8044_minidump_process_rdmux2(vha, 3084 entry_hdr, &data_ptr); 3085 break; 3086 case QLA8044_POLLRDMWR: 3087 rval = qla8044_minidump_process_pollrdmwr(vha, 3088 entry_hdr, &data_ptr); 3089 if (rval != QLA_SUCCESS) 3090 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3091 break; 3092 case QLA82XX_RDNOP: 3093 default: 3094 qla8044_mark_entry_skipped(vha, entry_hdr, i); 3095 break; 3096 } 3097 3098 data_collected = (uint8_t *)data_ptr - 3099 (uint8_t *)((uint8_t *)ha->md_dump); 3100 skip_nxt_entry: 3101 /* 3102 * next entry in the template 3103 */ 3104 entry_hdr = (struct qla8044_minidump_entry_hdr *) 3105 (((uint8_t *)entry_hdr) + entry_hdr->entry_size); 3106 } 3107 3108 if (data_collected != ha->md_dump_size) { 3109 ql_log(ql_log_info, vha, 0xb105, 3110 "Dump data mismatch: Data collected: " 3111 "[0x%x], total_data_size:[0x%x]\n", 3112 data_collected, ha->md_dump_size); 3113 goto md_failed; 3114 } 3115 3116 ql_log(ql_log_info, vha, 0xb110, 3117 "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n", 3118 vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump); 3119 ha->fw_dumped = 1; 3120 qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP); 3121 3122 3123 ql_log(ql_log_info, vha, 0xb106, 3124 "Leaving fn: %s Last entry: 0x%x\n", 3125 __func__, i); 3126 md_failed: 3127 return rval; 3128 } 3129 3130 void 3131 qla8044_get_minidump(struct scsi_qla_host *vha) 3132 { 3133 struct qla_hw_data *ha = vha->hw; 3134 3135 if (!qla8044_collect_md_data(vha)) { 3136 ha->fw_dumped = 1; 3137 } else { 3138 ql_log(ql_log_fatal, vha, 0xb0db, 3139 "%s: Unable to collect minidump\n", 3140 __func__); 3141 } 3142 } 3143 3144 static int 3145 qla8044_poll_flash_status_reg(struct scsi_qla_host *vha) 3146 { 3147 uint32_t flash_status; 3148 int retries = QLA8044_FLASH_READ_RETRY_COUNT; 3149 int ret_val = QLA_SUCCESS; 3150 3151 while (retries--) { 3152 ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS, 3153 &flash_status); 3154 if (ret_val) { 3155 ql_log(ql_log_warn, vha, 0xb13c, 3156 "%s: Failed to read FLASH_STATUS reg.\n", 3157 __func__); 3158 break; 3159 } 3160 if ((flash_status & QLA8044_FLASH_STATUS_READY) == 3161 QLA8044_FLASH_STATUS_READY) 3162 break; 3163 msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY); 3164 } 3165 3166 if (!retries) 3167 ret_val = QLA_FUNCTION_FAILED; 3168 3169 return ret_val; 3170 } 3171 3172 static int 3173 qla8044_write_flash_status_reg(struct scsi_qla_host *vha, 3174 uint32_t data) 3175 { 3176 int ret_val = QLA_SUCCESS; 3177 uint32_t cmd; 3178 3179 cmd = vha->hw->fdt_wrt_sts_reg_cmd; 3180 3181 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3182 QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd); 3183 if (ret_val) { 3184 ql_log(ql_log_warn, vha, 0xb125, 3185 "%s: Failed to write to FLASH_ADDR.\n", __func__); 3186 goto exit_func; 3187 } 3188 3189 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data); 3190 if (ret_val) { 3191 ql_log(ql_log_warn, vha, 0xb126, 3192 "%s: Failed to write to FLASH_WRDATA.\n", __func__); 3193 goto exit_func; 3194 } 3195 3196 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3197 QLA8044_FLASH_SECOND_ERASE_MS_VAL); 3198 if (ret_val) { 3199 ql_log(ql_log_warn, vha, 0xb127, 3200 "%s: Failed to write to FLASH_CONTROL.\n", __func__); 3201 goto exit_func; 3202 } 3203 3204 ret_val = qla8044_poll_flash_status_reg(vha); 3205 if (ret_val) 3206 ql_log(ql_log_warn, vha, 0xb128, 3207 "%s: Error polling flash status reg.\n", __func__); 3208 3209 exit_func: 3210 return ret_val; 3211 } 3212 3213 /* 3214 * This function assumes that the flash lock is held. 3215 */ 3216 static int 3217 qla8044_unprotect_flash(scsi_qla_host_t *vha) 3218 { 3219 int ret_val; 3220 struct qla_hw_data *ha = vha->hw; 3221 3222 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable); 3223 if (ret_val) 3224 ql_log(ql_log_warn, vha, 0xb139, 3225 "%s: Write flash status failed.\n", __func__); 3226 3227 return ret_val; 3228 } 3229 3230 /* 3231 * This function assumes that the flash lock is held. 3232 */ 3233 static int 3234 qla8044_protect_flash(scsi_qla_host_t *vha) 3235 { 3236 int ret_val; 3237 struct qla_hw_data *ha = vha->hw; 3238 3239 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable); 3240 if (ret_val) 3241 ql_log(ql_log_warn, vha, 0xb13b, 3242 "%s: Write flash status failed.\n", __func__); 3243 3244 return ret_val; 3245 } 3246 3247 3248 static int 3249 qla8044_erase_flash_sector(struct scsi_qla_host *vha, 3250 uint32_t sector_start_addr) 3251 { 3252 uint32_t reversed_addr; 3253 int ret_val = QLA_SUCCESS; 3254 3255 ret_val = qla8044_poll_flash_status_reg(vha); 3256 if (ret_val) { 3257 ql_log(ql_log_warn, vha, 0xb12e, 3258 "%s: Poll flash status after erase failed..\n", __func__); 3259 } 3260 3261 reversed_addr = (((sector_start_addr & 0xFF) << 16) | 3262 (sector_start_addr & 0xFF00) | 3263 ((sector_start_addr & 0xFF0000) >> 16)); 3264 3265 ret_val = qla8044_wr_reg_indirect(vha, 3266 QLA8044_FLASH_WRDATA, reversed_addr); 3267 if (ret_val) { 3268 ql_log(ql_log_warn, vha, 0xb12f, 3269 "%s: Failed to write to FLASH_WRDATA.\n", __func__); 3270 } 3271 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3272 QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd); 3273 if (ret_val) { 3274 ql_log(ql_log_warn, vha, 0xb130, 3275 "%s: Failed to write to FLASH_ADDR.\n", __func__); 3276 } 3277 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3278 QLA8044_FLASH_LAST_ERASE_MS_VAL); 3279 if (ret_val) { 3280 ql_log(ql_log_warn, vha, 0xb131, 3281 "%s: Failed write to FLASH_CONTROL.\n", __func__); 3282 } 3283 ret_val = qla8044_poll_flash_status_reg(vha); 3284 if (ret_val) { 3285 ql_log(ql_log_warn, vha, 0xb132, 3286 "%s: Poll flash status failed.\n", __func__); 3287 } 3288 3289 3290 return ret_val; 3291 } 3292 3293 /* 3294 * qla8044_flash_write_u32 - Write data to flash 3295 * 3296 * @ha : Pointer to adapter structure 3297 * addr : Flash address to write to 3298 * p_data : Data to be written 3299 * 3300 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED 3301 * 3302 * NOTE: Lock should be held on entry 3303 */ 3304 static int 3305 qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr, 3306 uint32_t *p_data) 3307 { 3308 int ret_val = QLA_SUCCESS; 3309 3310 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3311 0x00800000 | (addr >> 2)); 3312 if (ret_val) { 3313 ql_log(ql_log_warn, vha, 0xb134, 3314 "%s: Failed write to FLASH_ADDR.\n", __func__); 3315 goto exit_func; 3316 } 3317 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data); 3318 if (ret_val) { 3319 ql_log(ql_log_warn, vha, 0xb135, 3320 "%s: Failed write to FLASH_WRDATA.\n", __func__); 3321 goto exit_func; 3322 } 3323 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D); 3324 if (ret_val) { 3325 ql_log(ql_log_warn, vha, 0xb136, 3326 "%s: Failed write to FLASH_CONTROL.\n", __func__); 3327 goto exit_func; 3328 } 3329 ret_val = qla8044_poll_flash_status_reg(vha); 3330 if (ret_val) { 3331 ql_log(ql_log_warn, vha, 0xb137, 3332 "%s: Poll flash status failed.\n", __func__); 3333 } 3334 3335 exit_func: 3336 return ret_val; 3337 } 3338 3339 static int 3340 qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr, 3341 uint32_t faddr, uint32_t dwords) 3342 { 3343 int ret = QLA_FUNCTION_FAILED; 3344 uint32_t spi_val; 3345 3346 if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS || 3347 dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) { 3348 ql_dbg(ql_dbg_user, vha, 0xb123, 3349 "Got unsupported dwords = 0x%x.\n", 3350 dwords); 3351 return QLA_FUNCTION_FAILED; 3352 } 3353 3354 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val); 3355 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3356 spi_val | QLA8044_FLASH_SPI_CTL); 3357 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3358 QLA8044_FLASH_FIRST_TEMP_VAL); 3359 3360 /* First DWORD write to FLASH_WRDATA */ 3361 ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, 3362 *dwptr++); 3363 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3364 QLA8044_FLASH_FIRST_MS_PATTERN); 3365 3366 ret = qla8044_poll_flash_status_reg(vha); 3367 if (ret) { 3368 ql_log(ql_log_warn, vha, 0xb124, 3369 "%s: Failed.\n", __func__); 3370 goto exit_func; 3371 } 3372 3373 dwords--; 3374 3375 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3376 QLA8044_FLASH_SECOND_TEMP_VAL); 3377 3378 3379 /* Second to N-1 DWORDS writes */ 3380 while (dwords != 1) { 3381 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); 3382 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3383 QLA8044_FLASH_SECOND_MS_PATTERN); 3384 ret = qla8044_poll_flash_status_reg(vha); 3385 if (ret) { 3386 ql_log(ql_log_warn, vha, 0xb129, 3387 "%s: Failed.\n", __func__); 3388 goto exit_func; 3389 } 3390 dwords--; 3391 } 3392 3393 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, 3394 QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2)); 3395 3396 /* Last DWORD write */ 3397 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); 3398 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 3399 QLA8044_FLASH_LAST_MS_PATTERN); 3400 ret = qla8044_poll_flash_status_reg(vha); 3401 if (ret) { 3402 ql_log(ql_log_warn, vha, 0xb12a, 3403 "%s: Failed.\n", __func__); 3404 goto exit_func; 3405 } 3406 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val); 3407 3408 if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) { 3409 ql_log(ql_log_warn, vha, 0xb12b, 3410 "%s: Failed.\n", __func__); 3411 spi_val = 0; 3412 /* Operation failed, clear error bit. */ 3413 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3414 &spi_val); 3415 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, 3416 spi_val | QLA8044_FLASH_SPI_CTL); 3417 } 3418 exit_func: 3419 return ret; 3420 } 3421 3422 static int 3423 qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr, 3424 uint32_t faddr, uint32_t dwords) 3425 { 3426 int ret = QLA_FUNCTION_FAILED; 3427 uint32_t liter; 3428 3429 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) { 3430 ret = qla8044_flash_write_u32(vha, faddr, dwptr); 3431 if (ret) { 3432 ql_dbg(ql_dbg_p3p, vha, 0xb141, 3433 "%s: flash address=%x data=%x.\n", __func__, 3434 faddr, *dwptr); 3435 break; 3436 } 3437 } 3438 3439 return ret; 3440 } 3441 3442 int 3443 qla8044_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 3444 uint32_t offset, uint32_t length) 3445 { 3446 int rval = QLA_FUNCTION_FAILED, i, burst_iter_count; 3447 int dword_count, erase_sec_count; 3448 uint32_t erase_offset; 3449 uint8_t *p_cache, *p_src; 3450 3451 erase_offset = offset; 3452 3453 p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL); 3454 if (!p_cache) 3455 return QLA_FUNCTION_FAILED; 3456 3457 memcpy(p_cache, buf, length); 3458 p_src = p_cache; 3459 dword_count = length / sizeof(uint32_t); 3460 /* Since the offset and legth are sector aligned, it will be always 3461 * multiple of burst_iter_count (64) 3462 */ 3463 burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS; 3464 erase_sec_count = length / QLA8044_SECTOR_SIZE; 3465 3466 /* Suspend HBA. */ 3467 scsi_block_requests(vha->host); 3468 /* Lock and enable write for whole operation. */ 3469 qla8044_flash_lock(vha); 3470 qla8044_unprotect_flash(vha); 3471 3472 /* Erasing the sectors */ 3473 for (i = 0; i < erase_sec_count; i++) { 3474 rval = qla8044_erase_flash_sector(vha, erase_offset); 3475 ql_dbg(ql_dbg_user, vha, 0xb138, 3476 "Done erase of sector=0x%x.\n", 3477 erase_offset); 3478 if (rval) { 3479 ql_log(ql_log_warn, vha, 0xb121, 3480 "Failed to erase the sector having address: " 3481 "0x%x.\n", erase_offset); 3482 goto out; 3483 } 3484 erase_offset += QLA8044_SECTOR_SIZE; 3485 } 3486 ql_dbg(ql_dbg_user, vha, 0xb13f, 3487 "Got write for addr = 0x%x length=0x%x.\n", 3488 offset, length); 3489 3490 for (i = 0; i < burst_iter_count; i++) { 3491 3492 /* Go with write. */ 3493 rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src, 3494 offset, QLA8044_MAX_OPTROM_BURST_DWORDS); 3495 if (rval) { 3496 /* Buffer Mode failed skip to dword mode */ 3497 ql_log(ql_log_warn, vha, 0xb122, 3498 "Failed to write flash in buffer mode, " 3499 "Reverting to slow-write.\n"); 3500 rval = qla8044_write_flash_dword_mode(vha, 3501 (uint32_t *)p_src, offset, 3502 QLA8044_MAX_OPTROM_BURST_DWORDS); 3503 } 3504 p_src += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; 3505 offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; 3506 } 3507 ql_dbg(ql_dbg_user, vha, 0xb133, 3508 "Done writing.\n"); 3509 3510 out: 3511 qla8044_protect_flash(vha); 3512 qla8044_flash_unlock(vha); 3513 scsi_unblock_requests(vha->host); 3514 kfree(p_cache); 3515 3516 return rval; 3517 } 3518 3519 #define LEG_INT_PTR_B31 (1 << 31) 3520 #define LEG_INT_PTR_B30 (1 << 30) 3521 #define PF_BITS_MASK (0xF << 16) 3522 /** 3523 * qla8044_intr_handler() - Process interrupts for the ISP8044 3524 * @irq: 3525 * @dev_id: SCSI driver HA context 3526 * 3527 * Called by system whenever the host adapter generates an interrupt. 3528 * 3529 * Returns handled flag. 3530 */ 3531 irqreturn_t 3532 qla8044_intr_handler(int irq, void *dev_id) 3533 { 3534 scsi_qla_host_t *vha; 3535 struct qla_hw_data *ha; 3536 struct rsp_que *rsp; 3537 struct device_reg_82xx __iomem *reg; 3538 int status = 0; 3539 unsigned long flags; 3540 unsigned long iter; 3541 uint32_t stat; 3542 uint16_t mb[4]; 3543 uint32_t leg_int_ptr = 0, pf_bit; 3544 3545 rsp = (struct rsp_que *) dev_id; 3546 if (!rsp) { 3547 ql_log(ql_log_info, NULL, 0xb143, 3548 "%s(): NULL response queue pointer\n", __func__); 3549 return IRQ_NONE; 3550 } 3551 ha = rsp->hw; 3552 vha = pci_get_drvdata(ha->pdev); 3553 3554 if (unlikely(pci_channel_offline(ha->pdev))) 3555 return IRQ_HANDLED; 3556 3557 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); 3558 3559 /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */ 3560 if (!(leg_int_ptr & (LEG_INT_PTR_B31))) { 3561 ql_dbg(ql_dbg_p3p, vha, 0xb144, 3562 "%s: Legacy Interrupt Bit 31 not set, " 3563 "spurious interrupt!\n", __func__); 3564 return IRQ_NONE; 3565 } 3566 3567 pf_bit = ha->portnum << 16; 3568 /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */ 3569 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) { 3570 ql_dbg(ql_dbg_p3p, vha, 0xb145, 3571 "%s: Incorrect function ID 0x%x in " 3572 "legacy interrupt register, " 3573 "ha->pf_bit = 0x%x\n", __func__, 3574 (leg_int_ptr & (PF_BITS_MASK)), pf_bit); 3575 return IRQ_NONE; 3576 } 3577 3578 /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger 3579 * Control register and poll till Legacy Interrupt Pointer register 3580 * bit32 is 0. 3581 */ 3582 qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0); 3583 do { 3584 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); 3585 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) 3586 break; 3587 } while (leg_int_ptr & (LEG_INT_PTR_B30)); 3588 3589 reg = &ha->iobase->isp82; 3590 spin_lock_irqsave(&ha->hardware_lock, flags); 3591 for (iter = 1; iter--; ) { 3592 3593 if (RD_REG_DWORD(®->host_int)) { 3594 stat = RD_REG_DWORD(®->host_status); 3595 if ((stat & HSRX_RISC_INT) == 0) 3596 break; 3597 3598 switch (stat & 0xff) { 3599 case 0x1: 3600 case 0x2: 3601 case 0x10: 3602 case 0x11: 3603 qla82xx_mbx_completion(vha, MSW(stat)); 3604 status |= MBX_INTERRUPT; 3605 break; 3606 case 0x12: 3607 mb[0] = MSW(stat); 3608 mb[1] = RD_REG_WORD(®->mailbox_out[1]); 3609 mb[2] = RD_REG_WORD(®->mailbox_out[2]); 3610 mb[3] = RD_REG_WORD(®->mailbox_out[3]); 3611 qla2x00_async_event(vha, rsp, mb); 3612 break; 3613 case 0x13: 3614 qla24xx_process_response_queue(vha, rsp); 3615 break; 3616 default: 3617 ql_dbg(ql_dbg_p3p, vha, 0xb146, 3618 "Unrecognized interrupt type " 3619 "(%d).\n", stat & 0xff); 3620 break; 3621 } 3622 } 3623 WRT_REG_DWORD(®->host_int, 0); 3624 } 3625 3626 qla2x00_handle_mbx_completion(ha, status); 3627 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3628 3629 return IRQ_HANDLED; 3630 } 3631 3632 static int 3633 qla8044_idc_dontreset(struct qla_hw_data *ha) 3634 { 3635 uint32_t idc_ctrl; 3636 3637 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); 3638 return idc_ctrl & DONTRESET_BIT0; 3639 } 3640 3641 static void 3642 qla8044_clear_rst_ready(scsi_qla_host_t *vha) 3643 { 3644 uint32_t drv_state; 3645 3646 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); 3647 3648 /* 3649 * For ISP8044, drv_active register has 1 bit per function, 3650 * shift 1 by func_num to set a bit for the function. 3651 * For ISP82xx, drv_active has 4 bits per function 3652 */ 3653 drv_state &= ~(1 << vha->hw->portnum); 3654 3655 ql_dbg(ql_dbg_p3p, vha, 0xb13d, 3656 "drv_state: 0x%08x\n", drv_state); 3657 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); 3658 } 3659 3660 int 3661 qla8044_abort_isp(scsi_qla_host_t *vha) 3662 { 3663 int rval; 3664 uint32_t dev_state; 3665 struct qla_hw_data *ha = vha->hw; 3666 3667 qla8044_idc_lock(ha); 3668 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); 3669 3670 if (ql2xdontresethba) 3671 qla8044_set_idc_dontreset(vha); 3672 3673 /* If device_state is NEED_RESET, go ahead with 3674 * Reset,irrespective of ql2xdontresethba. This is to allow a 3675 * non-reset-owner to force a reset. Non-reset-owner sets 3676 * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset 3677 * and then forces a Reset by setting device_state to 3678 * NEED_RESET. */ 3679 if (dev_state == QLA8XXX_DEV_READY) { 3680 /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset 3681 * recovery */ 3682 if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) { 3683 ql_dbg(ql_dbg_p3p, vha, 0xb13e, 3684 "Reset recovery disabled\n"); 3685 rval = QLA_FUNCTION_FAILED; 3686 goto exit_isp_reset; 3687 } 3688 3689 ql_dbg(ql_dbg_p3p, vha, 0xb140, 3690 "HW State: NEED RESET\n"); 3691 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, 3692 QLA8XXX_DEV_NEED_RESET); 3693 } 3694 3695 /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority 3696 * and which drivers are present. Unlike ISP82XX, the function setting 3697 * NEED_RESET, may not be the Reset owner. */ 3698 qla83xx_reset_ownership(vha); 3699 3700 qla8044_idc_unlock(ha); 3701 rval = qla8044_device_state_handler(vha); 3702 qla8044_idc_lock(ha); 3703 qla8044_clear_rst_ready(vha); 3704 3705 exit_isp_reset: 3706 qla8044_idc_unlock(ha); 3707 if (rval == QLA_SUCCESS) { 3708 ha->flags.isp82xx_fw_hung = 0; 3709 ha->flags.nic_core_reset_hdlr_active = 0; 3710 rval = qla82xx_restart_isp(vha); 3711 } 3712 3713 return rval; 3714 } 3715 3716 void 3717 qla8044_fw_dump(scsi_qla_host_t *vha, int hardware_locked) 3718 { 3719 struct qla_hw_data *ha = vha->hw; 3720 3721 if (!ha->allow_cna_fw_dump) 3722 return; 3723 3724 scsi_block_requests(vha->host); 3725 ha->flags.isp82xx_no_md_cap = 1; 3726 qla8044_idc_lock(ha); 3727 qla82xx_set_reset_owner(vha); 3728 qla8044_idc_unlock(ha); 3729 qla2x00_wait_for_chip_reset(vha); 3730 scsi_unblock_requests(vha->host); 3731 } 3732