drivers/scsi/qla2xxx/qla_nx2.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6
   7 #include <linux/vmalloc.h>
   8 #include <linux/delay.h>
   9
  10 #include "qla_def.h"
  11 #include "qla_gbl.h"
  12
  13 #define TIMEOUT_100_MS 100
  14
  15 static const uint32_t qla8044_reg_tbl[] = {
  16         QLA8044_PEG_HALT_STATUS1,
  17         QLA8044_PEG_HALT_STATUS2,
  18         QLA8044_PEG_ALIVE_COUNTER,
  19         QLA8044_CRB_DRV_ACTIVE,
  20         QLA8044_CRB_DEV_STATE,
  21         QLA8044_CRB_DRV_STATE,
  22         QLA8044_CRB_DRV_SCRATCH,
  23         QLA8044_CRB_DEV_PART_INFO1,
  24         QLA8044_CRB_IDC_VER_MAJOR,
  25         QLA8044_FW_VER_MAJOR,
  26         QLA8044_FW_VER_MINOR,
  27         QLA8044_FW_VER_SUB,
  28         QLA8044_CMDPEG_STATE,
  29         QLA8044_ASIC_TEMP,
  30 };
  31
  32 /* 8044 Flash Read/Write functions */
  33 uint32_t
  34 qla8044_rd_reg(struct qla_hw_data *ha, ulong addr)
  35 {
  36         return readl((void __iomem *) (ha->nx_pcibase + addr));
  37 }
  38
  39 void
  40 qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val)
  41 {
  42         writel(val, (void __iomem *)((ha)->nx_pcibase + addr));
  43 }
  44
  45 int
  46 qla8044_rd_direct(struct scsi_qla_host *vha,
  47         const uint32_t crb_reg)
  48 {
  49         struct qla_hw_data *ha = vha->hw;
  50
  51         if (crb_reg < CRB_REG_INDEX_MAX)
  52                 return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]);
  53         else
  54                 return QLA_FUNCTION_FAILED;
  55 }
  56
  57 void
  58 qla8044_wr_direct(struct scsi_qla_host *vha,
  59         const uint32_t crb_reg,
  60         const uint32_t value)
  61 {
  62         struct qla_hw_data *ha = vha->hw;
  63
  64         if (crb_reg < CRB_REG_INDEX_MAX)
  65                 qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value);
  66 }
  67
  68 static int
  69 qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr)
  70 {
  71         uint32_t val;
  72         int ret_val = QLA_SUCCESS;
  73         struct qla_hw_data *ha = vha->hw;
  74
  75         qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr);
  76         val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum));
  77
  78         if (val != addr) {
  79                 ql_log(ql_log_warn, vha, 0xb087,
  80                     "%s: Failed to set register window : "
  81                     "addr written 0x%x, read 0x%x!\n",
  82                     __func__, addr, val);
  83                 ret_val = QLA_FUNCTION_FAILED;
  84         }
  85         return ret_val;
  86 }
  87
  88 static int
  89 qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
  90 {
  91         int ret_val = QLA_SUCCESS;
  92         struct qla_hw_data *ha = vha->hw;
  93
  94         ret_val = qla8044_set_win_base(vha, addr);
  95         if (!ret_val)
  96                 *data = qla8044_rd_reg(ha, QLA8044_WILDCARD);
  97         else
  98                 ql_log(ql_log_warn, vha, 0xb088,
  99                     "%s: failed read of addr 0x%x!\n", __func__, addr);
 100         return ret_val;
 101 }
 102
 103 static int
 104 qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
 105 {
 106         int ret_val = QLA_SUCCESS;
 107         struct qla_hw_data *ha = vha->hw;
 108
 109         ret_val = qla8044_set_win_base(vha, addr);
 110         if (!ret_val)
 111                 qla8044_wr_reg(ha, QLA8044_WILDCARD, data);
 112         else
 113                 ql_log(ql_log_warn, vha, 0xb089,
 114                     "%s: failed wrt to addr 0x%x, data 0x%x\n",
 115                     __func__, addr, data);
 116         return ret_val;
 117 }
 118
 119 /*
 120  * qla8044_read_write_crb_reg - Read from raddr and write value to waddr.
 121  *
 122  * @ha : Pointer to adapter structure
 123  * @raddr : CRB address to read from
 124  * @waddr : CRB address to write to
 125  *
 126  */
 127 static void
 128 qla8044_read_write_crb_reg(struct scsi_qla_host *vha,
 129         uint32_t raddr, uint32_t waddr)
 130 {
 131         uint32_t value;
 132
 133         qla8044_rd_reg_indirect(vha, raddr, &value);
 134         qla8044_wr_reg_indirect(vha, waddr, value);
 135 }
 136
 137 static int
 138 qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1,
 139         uint32_t mask)
 140 {
 141         unsigned long timeout;
 142         uint32_t temp = 0;
 143
 144         /* jiffies after 100ms */
 145         timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
 146         do {
 147                 qla8044_rd_reg_indirect(vha, addr1, &temp);
 148                 if ((temp & mask) != 0)
 149                         break;
 150                 if (time_after_eq(jiffies, timeout)) {
 151                         ql_log(ql_log_warn, vha, 0xb151,
 152                                 "Error in processing rdmdio entry\n");
 153                         return -1;
 154                 }
 155         } while (1);
 156
 157         return 0;
 158 }
 159
 160 static uint32_t
 161 qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha,
 162         uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr)
 163 {
 164         uint32_t temp;
 165         int ret = 0;
 166
 167         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 168         if (ret == -1)
 169                 return -1;
 170
 171         temp = (0x40000000 | addr);
 172         qla8044_wr_reg_indirect(vha, addr1, temp);
 173
 174         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 175         if (ret == -1)
 176                 return 0;
 177
 178         qla8044_rd_reg_indirect(vha, addr3, &ret);
 179
 180         return ret;
 181 }
 182
 183
 184 static int
 185 qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha,
 186         uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask)
 187 {
 188         unsigned long timeout;
 189         uint32_t temp;
 190
 191         /* jiffies after 100 msecs */
 192         timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
 193         do {
 194                 temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2);
 195                 if ((temp & 0x1) != 1)
 196                         break;
 197                 if (time_after_eq(jiffies, timeout)) {
 198                         ql_log(ql_log_warn, vha, 0xb152,
 199                             "Error in processing mdiobus idle\n");
 200                         return -1;
 201                 }
 202         } while (1);
 203
 204         return 0;
 205 }
 206
 207 static int
 208 qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1,
 209         uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value)
 210 {
 211         int ret = 0;
 212
 213         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 214         if (ret == -1)
 215                 return -1;
 216
 217         qla8044_wr_reg_indirect(vha, addr3, value);
 218         qla8044_wr_reg_indirect(vha, addr1, addr);
 219
 220         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 221         if (ret == -1)
 222                 return -1;
 223
 224         return 0;
 225 }
 226 /*
 227  * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask,
 228  * Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
 229  *
 230  * @vha : Pointer to adapter structure
 231  * @raddr : CRB address to read from
 232  * @waddr : CRB address to write to
 233  * @p_rmw_hdr : header with shift/or/xor values.
 234  *
 235  */
 236 static void
 237 qla8044_rmw_crb_reg(struct scsi_qla_host *vha,
 238         uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr)
 239 {
 240         uint32_t value;
 241
 242         if (p_rmw_hdr->index_a)
 243                 value = vha->reset_tmplt.array[p_rmw_hdr->index_a];
 244         else
 245                 qla8044_rd_reg_indirect(vha, raddr, &value);
 246         value &= p_rmw_hdr->test_mask;
 247         value <<= p_rmw_hdr->shl;
 248         value >>= p_rmw_hdr->shr;
 249         value |= p_rmw_hdr->or_value;
 250         value ^= p_rmw_hdr->xor_value;
 251         qla8044_wr_reg_indirect(vha, waddr, value);
 252         return;
 253 }
 254
 255 static inline void
 256 qla8044_set_qsnt_ready(struct scsi_qla_host *vha)
 257 {
 258         uint32_t qsnt_state;
 259         struct qla_hw_data *ha = vha->hw;
 260
 261         qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 262         qsnt_state |= (1 << ha->portnum);
 263         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
 264         ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n",
 265              __func__, vha->host_no, qsnt_state);
 266 }
 267
 268 void
 269 qla8044_clear_qsnt_ready(struct scsi_qla_host *vha)
 270 {
 271         uint32_t qsnt_state;
 272         struct qla_hw_data *ha = vha->hw;
 273
 274         qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 275         qsnt_state &= ~(1 << ha->portnum);
 276         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
 277         ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n",
 278             __func__, vha->host_no, qsnt_state);
 279 }
 280
 281 /**
 282  * qla8044_lock_recovery - Recovers the idc_lock.
 283  * @vha : Pointer to adapter structure
 284  *
 285  * Lock Recovery Register
 286  * 5-2  Lock recovery owner: Function ID of driver doing lock recovery,
 287  *      valid if bits 1..0 are set by driver doing lock recovery.
 288  * 1-0  1 - Driver intends to force unlock the IDC lock.
 289  *      2 - Driver is moving forward to unlock the IDC lock. Driver clears
 290  *          this field after force unlocking the IDC lock.
 291  *
 292  * Lock Recovery process
 293  * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is
 294  *    greater than 0, then wait for the other driver to unlock otherwise
 295  *    move to the next step.
 296  * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY
 297  *    register bits 1..0 and also set the function# in bits 5..2.
 298  * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms.
 299  *    Wait for the other driver to perform lock recovery if the function
 300  *    number in bits 5..2 has changed, otherwise move to the next step.
 301  * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0
 302  *    leaving your function# in bits 5..2.
 303  * e. Force unlock using the DRIVER_UNLOCK register and immediately clear
 304  *    the IDC_LOCK_RECOVERY bits 5..0 by writing 0.
 305  **/
 306 static int
 307 qla8044_lock_recovery(struct scsi_qla_host *vha)
 308 {
 309         uint32_t lock = 0, lockid;
 310         struct qla_hw_data *ha = vha->hw;
 311
 312         lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
 313
 314         /* Check for other Recovery in progress, go wait */
 315         if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0)
 316                 return QLA_FUNCTION_FAILED;
 317
 318         /* Intent to Recover */
 319         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
 320             (ha->portnum <<
 321              IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER);
 322         msleep(200);
 323
 324         /* Check Intent to Recover is advertised */
 325         lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
 326         if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum <<
 327             IDC_LOCK_RECOVERY_STATE_SHIFT_BITS))
 328                 return QLA_FUNCTION_FAILED;
 329
 330         ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n"
 331             , __func__, ha->portnum);
 332
 333         /* Proceed to Recover */
 334         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
 335             (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) |
 336             PROCEED_TO_RECOVER);
 337
 338         /* Force Unlock() */
 339         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF);
 340         qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
 341
 342         /* Clear bits 0-5 in IDC_RECOVERY register*/
 343         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0);
 344
 345         /* Get lock() */
 346         lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
 347         if (lock) {
 348                 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 349                 lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum;
 350                 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid);
 351                 return QLA_SUCCESS;
 352         } else
 353                 return QLA_FUNCTION_FAILED;
 354 }
 355
 356 int
 357 qla8044_idc_lock(struct qla_hw_data *ha)
 358 {
 359         uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0;
 360         uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0;
 361         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 362
 363         while (status == 0) {
 364                 /* acquire semaphore5 from PCI HW block */
 365                 status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
 366
 367                 if (status) {
 368                         /* Increment Counter (8-31) and update func_num (0-7) on
 369                          * getting a successful lock  */
 370                         lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 371                         lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum;
 372                         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id);
 373                         break;
 374                 }
 375
 376                 if (timeout == 0)
 377                         first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 378
 379                 if (++timeout >=
 380                     (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) {
 381                         tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 382                         func_num = tmo_owner & 0xFF;
 383                         lock_cnt = tmo_owner >> 8;
 384                         ql_log(ql_log_warn, vha, 0xb114,
 385                             "%s: Lock by func %d failed after 2s, lock held "
 386                             "by func %d, lock count %d, first_owner %d\n",
 387                             __func__, ha->portnum, func_num, lock_cnt,
 388                             (first_owner & 0xFF));
 389                         if (first_owner != tmo_owner) {
 390                                 /* Some other driver got lock,
 391                                  * OR same driver got lock again (counter
 392                                  * value changed), when we were waiting for
 393                                  * lock. Retry for another 2 sec */
 394                                 ql_dbg(ql_dbg_p3p, vha, 0xb115,
 395                                     "%s: %d: IDC lock failed\n",
 396                                     __func__, ha->portnum);
 397                                 timeout = 0;
 398                         } else {
 399                                 /* Same driver holding lock > 2sec.
 400                                  * Force Recovery */
 401                                 if (qla8044_lock_recovery(vha) == QLA_SUCCESS) {
 402                                         /* Recovered and got lock */
 403                                         ret_val = QLA_SUCCESS;
 404                                         ql_dbg(ql_dbg_p3p, vha, 0xb116,
 405                                             "%s:IDC lock Recovery by %d"
 406                                             "successful...\n", __func__,
 407                                              ha->portnum);
 408                                 }
 409                                 /* Recovery Failed, some other function
 410                                  * has the lock, wait for 2secs
 411                                  * and retry
 412                                  */
 413                                 ql_dbg(ql_dbg_p3p, vha, 0xb08a,
 414                                        "%s: IDC lock Recovery by %d "
 415                                        "failed, Retrying timeout\n", __func__,
 416                                        ha->portnum);
 417                                 timeout = 0;
 418                         }
 419                 }
 420                 msleep(QLA8044_DRV_LOCK_MSLEEP);
 421         }
 422         return ret_val;
 423 }
 424
 425 void
 426 qla8044_idc_unlock(struct qla_hw_data *ha)
 427 {
 428         int id;
 429         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 430
 431         id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 432
 433         if ((id & 0xFF) != ha->portnum) {
 434                 ql_log(ql_log_warn, vha, 0xb118,
 435                     "%s: IDC Unlock by %d failed, lock owner is %d!\n",
 436                     __func__, ha->portnum, (id & 0xFF));
 437                 return;
 438         }
 439
 440         /* Keep lock counter value, update the ha->func_num to 0xFF */
 441         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF));
 442         qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
 443 }
 444
 445 /* 8044 Flash Lock/Unlock functions */
 446 static int
 447 qla8044_flash_lock(scsi_qla_host_t *vha)
 448 {
 449         int lock_owner;
 450         int timeout = 0;
 451         uint32_t lock_status = 0;
 452         int ret_val = QLA_SUCCESS;
 453         struct qla_hw_data *ha = vha->hw;
 454
 455         while (lock_status == 0) {
 456                 lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK);
 457                 if (lock_status)
 458                         break;
 459
 460                 if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) {
 461                         lock_owner = qla8044_rd_reg(ha,
 462                             QLA8044_FLASH_LOCK_ID);
 463                         ql_log(ql_log_warn, vha, 0xb113,
 464                             "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
 465                             __func__, ha->portnum, lock_owner);
 466                         ret_val = QLA_FUNCTION_FAILED;
 467                         break;
 468                 }
 469                 msleep(20);
 470         }
 471         qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum);
 472         return ret_val;
 473 }
 474
 475 static void
 476 qla8044_flash_unlock(scsi_qla_host_t *vha)
 477 {
 478         struct qla_hw_data *ha = vha->hw;
 479
 480         /* Reading FLASH_UNLOCK register unlocks the Flash */
 481         qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
 482         qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
 483 }
 484
 485
 486 static
 487 void qla8044_flash_lock_recovery(struct scsi_qla_host *vha)
 488 {
 489
 490         if (qla8044_flash_lock(vha)) {
 491                 /* Someone else is holding the lock. */
 492                 ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n");
 493         }
 494
 495         /*
 496          * Either we got the lock, or someone
 497          * else died while holding it.
 498          * In either case, unlock.
 499          */
 500         qla8044_flash_unlock(vha);
 501 }
 502
 503 /*
 504  * Address and length are byte address
 505  */
 506 static int
 507 qla8044_read_flash_data(scsi_qla_host_t *vha,  uint8_t *p_data,
 508         uint32_t flash_addr, int u32_word_count)
 509 {
 510         int i, ret_val = QLA_SUCCESS;
 511         uint32_t u32_word;
 512
 513         if (qla8044_flash_lock(vha) != QLA_SUCCESS) {
 514                 ret_val = QLA_FUNCTION_FAILED;
 515                 goto exit_lock_error;
 516         }
 517
 518         if (flash_addr & 0x03) {
 519                 ql_log(ql_log_warn, vha, 0xb117,
 520                     "%s: Illegal addr = 0x%x\n", __func__, flash_addr);
 521                 ret_val = QLA_FUNCTION_FAILED;
 522                 goto exit_flash_read;
 523         }
 524
 525         for (i = 0; i < u32_word_count; i++) {
 526                 if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW,
 527                     (flash_addr & 0xFFFF0000))) {
 528                         ql_log(ql_log_warn, vha, 0xb119,
 529                             "%s: failed to write addr 0x%x to "
 530                             "FLASH_DIRECT_WINDOW\n! ",
 531                             __func__, flash_addr);
 532                         ret_val = QLA_FUNCTION_FAILED;
 533                         goto exit_flash_read;
 534                 }
 535
 536                 ret_val = qla8044_rd_reg_indirect(vha,
 537                     QLA8044_FLASH_DIRECT_DATA(flash_addr),
 538                     &u32_word);
 539                 if (ret_val != QLA_SUCCESS) {
 540                         ql_log(ql_log_warn, vha, 0xb08c,
 541                             "%s: failed to read addr 0x%x!\n",
 542                             __func__, flash_addr);
 543                         goto exit_flash_read;
 544                 }
 545
 546                 *(uint32_t *)p_data = u32_word;
 547                 p_data = p_data + 4;
 548                 flash_addr = flash_addr + 4;
 549         }
 550
 551 exit_flash_read:
 552         qla8044_flash_unlock(vha);
 553
 554 exit_lock_error:
 555         return ret_val;
 556 }
 557
 558 /*
 559  * Address and length are byte address
 560  */
 561 void *
 562 qla8044_read_optrom_data(struct scsi_qla_host *vha, void *buf,
 563         uint32_t offset, uint32_t length)
 564 {
 565         scsi_block_requests(vha->host);
 566         if (qla8044_read_flash_data(vha, buf, offset, length / 4)
 567             != QLA_SUCCESS) {
 568                 ql_log(ql_log_warn, vha,  0xb08d,
 569                     "%s: Failed to read from flash\n",
 570                     __func__);
 571         }
 572         scsi_unblock_requests(vha->host);
 573         return buf;
 574 }
 575
 576 static inline int
 577 qla8044_need_reset(struct scsi_qla_host *vha)
 578 {
 579         uint32_t drv_state, drv_active;
 580         int rval;
 581         struct qla_hw_data *ha = vha->hw;
 582
 583         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
 584         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 585
 586         rval = drv_state & (1 << ha->portnum);
 587
 588         if (ha->flags.eeh_busy && drv_active)
 589                 rval = 1;
 590         return rval;
 591 }
 592
 593 /*
 594  * qla8044_write_list - Write the value (p_entry->arg2) to address specified
 595  * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between
 596  * entries.
 597  *
 598  * @vha : Pointer to adapter structure
 599  * @p_hdr : reset_entry header for WRITE_LIST opcode.
 600  *
 601  */
 602 static void
 603 qla8044_write_list(struct scsi_qla_host *vha,
 604         struct qla8044_reset_entry_hdr *p_hdr)
 605 {
 606         struct qla8044_entry *p_entry;
 607         uint32_t i;
 608
 609         p_entry = (struct qla8044_entry *)((char *)p_hdr +
 610             sizeof(struct qla8044_reset_entry_hdr));
 611
 612         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 613                 qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2);
 614                 if (p_hdr->delay)
 615                         udelay((uint32_t)(p_hdr->delay));
 616         }
 617 }
 618
 619 /*
 620  * qla8044_read_write_list - Read from address specified by p_entry->arg1,
 621  * write value read to address specified by p_entry->arg2, for all entries in
 622  * header with delay of p_hdr->delay between entries.
 623  *
 624  * @vha : Pointer to adapter structure
 625  * @p_hdr : reset_entry header for READ_WRITE_LIST opcode.
 626  *
 627  */
 628 static void
 629 qla8044_read_write_list(struct scsi_qla_host *vha,
 630         struct qla8044_reset_entry_hdr *p_hdr)
 631 {
 632         struct qla8044_entry *p_entry;
 633         uint32_t i;
 634
 635         p_entry = (struct qla8044_entry *)((char *)p_hdr +
 636             sizeof(struct qla8044_reset_entry_hdr));
 637
 638         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 639                 qla8044_read_write_crb_reg(vha, p_entry->arg1,
 640                     p_entry->arg2);
 641                 if (p_hdr->delay)
 642                         udelay((uint32_t)(p_hdr->delay));
 643         }
 644 }
 645
 646 /*
 647  * qla8044_poll_reg - Poll the given CRB addr for duration msecs till
 648  * value read ANDed with test_mask is equal to test_result.
 649  *
 650  * @ha : Pointer to adapter structure
 651  * @addr : CRB register address
 652  * @duration : Poll for total of "duration" msecs
 653  * @test_mask : Mask value read with "test_mask"
 654  * @test_result : Compare (value&test_mask) with test_result.
 655  *
 656  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
 657  */
 658 static int
 659 qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
 660         int duration, uint32_t test_mask, uint32_t test_result)
 661 {
 662         uint32_t value = 0;
 663         int timeout_error;
 664         uint8_t retries;
 665         int ret_val = QLA_SUCCESS;
 666
 667         ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
 668         if (ret_val == QLA_FUNCTION_FAILED) {
 669                 timeout_error = 1;
 670                 goto exit_poll_reg;
 671         }
 672
 673         /* poll every 1/10 of the total duration */
 674         retries = duration/10;
 675
 676         do {
 677                 if ((value & test_mask) != test_result) {
 678                         timeout_error = 1;
 679                         msleep(duration/10);
 680                         ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
 681                         if (ret_val == QLA_FUNCTION_FAILED) {
 682                                 timeout_error = 1;
 683                                 goto exit_poll_reg;
 684                         }
 685                 } else {
 686                         timeout_error = 0;
 687                         break;
 688                 }
 689         } while (retries--);
 690
 691 exit_poll_reg:
 692         if (timeout_error) {
 693                 vha->reset_tmplt.seq_error++;
 694                 ql_log(ql_log_fatal, vha, 0xb090,
 695                     "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n",
 696                     __func__, value, test_mask, test_result);
 697         }
 698
 699         return timeout_error;
 700 }
 701
 702 /*
 703  * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB
 704  * register specified by p_entry->arg1 and compare (value AND test_mask) with
 705  * test_result to validate it. Wait for p_hdr->delay between processing entries.
 706  *
 707  * @ha : Pointer to adapter structure
 708  * @p_hdr : reset_entry header for POLL_LIST opcode.
 709  *
 710  */
 711 static void
 712 qla8044_poll_list(struct scsi_qla_host *vha,
 713         struct qla8044_reset_entry_hdr *p_hdr)
 714 {
 715         long delay;
 716         struct qla8044_entry *p_entry;
 717         struct qla8044_poll *p_poll;
 718         uint32_t i;
 719         uint32_t value;
 720
 721         p_poll = (struct qla8044_poll *)
 722                 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
 723
 724         /* Entries start after 8 byte qla8044_poll, poll header contains
 725          * the test_mask, test_value.
 726          */
 727         p_entry = (struct qla8044_entry *)((char *)p_poll +
 728             sizeof(struct qla8044_poll));
 729
 730         delay = (long)p_hdr->delay;
 731
 732         if (!delay) {
 733                 for (i = 0; i < p_hdr->count; i++, p_entry++)
 734                         qla8044_poll_reg(vha, p_entry->arg1,
 735                             delay, p_poll->test_mask, p_poll->test_value);
 736         } else {
 737                 for (i = 0; i < p_hdr->count; i++, p_entry++) {
 738                         if (delay) {
 739                                 if (qla8044_poll_reg(vha,
 740                                     p_entry->arg1, delay,
 741                                     p_poll->test_mask,
 742                                     p_poll->test_value)) {
 743                                         /*If
 744                                         * (data_read&test_mask != test_value)
 745                                         * read TIMEOUT_ADDR (arg1) and
 746                                         * ADDR (arg2) registers
 747                                         */
 748                                         qla8044_rd_reg_indirect(vha,
 749                                             p_entry->arg1, &value);
 750                                         qla8044_rd_reg_indirect(vha,
 751                                             p_entry->arg2, &value);
 752                                 }
 753                         }
 754                 }
 755         }
 756 }
 757
 758 /*
 759  * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr,
 760  * read ar_addr, if (value& test_mask != test_mask) re-read till timeout
 761  * expires.
 762  *
 763  * @vha : Pointer to adapter structure
 764  * @p_hdr : reset entry header for POLL_WRITE_LIST opcode.
 765  *
 766  */
 767 static void
 768 qla8044_poll_write_list(struct scsi_qla_host *vha,
 769         struct qla8044_reset_entry_hdr *p_hdr)
 770 {
 771         long delay;
 772         struct qla8044_quad_entry *p_entry;
 773         struct qla8044_poll *p_poll;
 774         uint32_t i;
 775
 776         p_poll = (struct qla8044_poll *)((char *)p_hdr +
 777             sizeof(struct qla8044_reset_entry_hdr));
 778
 779         p_entry = (struct qla8044_quad_entry *)((char *)p_poll +
 780             sizeof(struct qla8044_poll));
 781
 782         delay = (long)p_hdr->delay;
 783
 784         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 785                 qla8044_wr_reg_indirect(vha,
 786                     p_entry->dr_addr, p_entry->dr_value);
 787                 qla8044_wr_reg_indirect(vha,
 788                     p_entry->ar_addr, p_entry->ar_value);
 789                 if (delay) {
 790                         if (qla8044_poll_reg(vha,
 791                             p_entry->ar_addr, delay,
 792                             p_poll->test_mask,
 793                             p_poll->test_value)) {
 794                                 ql_dbg(ql_dbg_p3p, vha, 0xb091,
 795                                     "%s: Timeout Error: poll list, ",
 796                                     __func__);
 797                                 ql_dbg(ql_dbg_p3p, vha, 0xb092,
 798                                     "item_num %d, entry_num %d\n", i,
 799                                     vha->reset_tmplt.seq_index);
 800                         }
 801                 }
 802         }
 803 }
 804
 805 /*
 806  * qla8044_read_modify_write - Read value from p_entry->arg1, modify the
 807  * value, write value to p_entry->arg2. Process entries with p_hdr->delay
 808  * between entries.
 809  *
 810  * @vha : Pointer to adapter structure
 811  * @p_hdr : header with shift/or/xor values.
 812  *
 813  */
 814 static void
 815 qla8044_read_modify_write(struct scsi_qla_host *vha,
 816         struct qla8044_reset_entry_hdr *p_hdr)
 817 {
 818         struct qla8044_entry *p_entry;
 819         struct qla8044_rmw *p_rmw_hdr;
 820         uint32_t i;
 821
 822         p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr +
 823             sizeof(struct qla8044_reset_entry_hdr));
 824
 825         p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr +
 826             sizeof(struct qla8044_rmw));
 827
 828         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 829                 qla8044_rmw_crb_reg(vha, p_entry->arg1,
 830                     p_entry->arg2, p_rmw_hdr);
 831                 if (p_hdr->delay)
 832                         udelay((uint32_t)(p_hdr->delay));
 833         }
 834 }
 835
 836 /*
 837  * qla8044_pause - Wait for p_hdr->delay msecs, called between processing
 838  * two entries of a sequence.
 839  *
 840  * @vha : Pointer to adapter structure
 841  * @p_hdr : Common reset entry header.
 842  *
 843  */
 844 static
 845 void qla8044_pause(struct scsi_qla_host *vha,
 846         struct qla8044_reset_entry_hdr *p_hdr)
 847 {
 848         if (p_hdr->delay)
 849                 mdelay((uint32_t)((long)p_hdr->delay));
 850 }
 851
 852 /*
 853  * qla8044_template_end - Indicates end of reset sequence processing.
 854  *
 855  * @vha : Pointer to adapter structure
 856  * @p_hdr : Common reset entry header.
 857  *
 858  */
 859 static void
 860 qla8044_template_end(struct scsi_qla_host *vha,
 861         struct qla8044_reset_entry_hdr *p_hdr)
 862 {
 863         vha->reset_tmplt.template_end = 1;
 864
 865         if (vha->reset_tmplt.seq_error == 0) {
 866                 ql_dbg(ql_dbg_p3p, vha, 0xb093,
 867                     "%s: Reset sequence completed SUCCESSFULLY.\n", __func__);
 868         } else {
 869                 ql_log(ql_log_fatal, vha, 0xb094,
 870                     "%s: Reset sequence completed with some timeout "
 871                     "errors.\n", __func__);
 872         }
 873 }
 874
 875 /*
 876  * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr,
 877  * if (value & test_mask != test_value) re-read till timeout value expires,
 878  * read dr_addr register and assign to reset_tmplt.array.
 879  *
 880  * @vha : Pointer to adapter structure
 881  * @p_hdr : Common reset entry header.
 882  *
 883  */
 884 static void
 885 qla8044_poll_read_list(struct scsi_qla_host *vha,
 886         struct qla8044_reset_entry_hdr *p_hdr)
 887 {
 888         long delay;
 889         int index;
 890         struct qla8044_quad_entry *p_entry;
 891         struct qla8044_poll *p_poll;
 892         uint32_t i;
 893         uint32_t value;
 894
 895         p_poll = (struct qla8044_poll *)
 896                 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
 897
 898         p_entry = (struct qla8044_quad_entry *)
 899                 ((char *)p_poll + sizeof(struct qla8044_poll));
 900
 901         delay = (long)p_hdr->delay;
 902
 903         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 904                 qla8044_wr_reg_indirect(vha, p_entry->ar_addr,
 905                     p_entry->ar_value);
 906                 if (delay) {
 907                         if (qla8044_poll_reg(vha, p_entry->ar_addr, delay,
 908                             p_poll->test_mask, p_poll->test_value)) {
 909                                 ql_dbg(ql_dbg_p3p, vha, 0xb095,
 910                                     "%s: Timeout Error: poll "
 911                                     "list, ", __func__);
 912                                 ql_dbg(ql_dbg_p3p, vha, 0xb096,
 913                                     "Item_num %d, "
 914                                     "entry_num %d\n", i,
 915                                     vha->reset_tmplt.seq_index);
 916                         } else {
 917                                 index = vha->reset_tmplt.array_index;
 918                                 qla8044_rd_reg_indirect(vha,
 919                                     p_entry->dr_addr, &value);
 920                                 vha->reset_tmplt.array[index++] = value;
 921                                 if (index == QLA8044_MAX_RESET_SEQ_ENTRIES)
 922                                         vha->reset_tmplt.array_index = 1;
 923                         }
 924                 }
 925         }
 926 }
 927
 928 /*
 929  * qla8031_process_reset_template - Process all entries in reset template
 930  * till entry with SEQ_END opcode, which indicates end of the reset template
 931  * processing. Each entry has a Reset Entry header, entry opcode/command, with
 932  * size of the entry, number of entries in sub-sequence and delay in microsecs
 933  * or timeout in millisecs.
 934  *
 935  * @ha : Pointer to adapter structure
 936  * @p_buff : Common reset entry header.
 937  *
 938  */
 939 static void
 940 qla8044_process_reset_template(struct scsi_qla_host *vha,
 941         char *p_buff)
 942 {
 943         int index, entries;
 944         struct qla8044_reset_entry_hdr *p_hdr;
 945         char *p_entry = p_buff;
 946
 947         vha->reset_tmplt.seq_end = 0;
 948         vha->reset_tmplt.template_end = 0;
 949         entries = vha->reset_tmplt.hdr->entries;
 950         index = vha->reset_tmplt.seq_index;
 951
 952         for (; (!vha->reset_tmplt.seq_end) && (index  < entries); index++) {
 953                 p_hdr = (struct qla8044_reset_entry_hdr *)p_entry;
 954                 switch (p_hdr->cmd) {
 955                 case OPCODE_NOP:
 956                         break;
 957                 case OPCODE_WRITE_LIST:
 958                         qla8044_write_list(vha, p_hdr);
 959                         break;
 960                 case OPCODE_READ_WRITE_LIST:
 961                         qla8044_read_write_list(vha, p_hdr);
 962                         break;
 963                 case OPCODE_POLL_LIST:
 964                         qla8044_poll_list(vha, p_hdr);
 965                         break;
 966                 case OPCODE_POLL_WRITE_LIST:
 967                         qla8044_poll_write_list(vha, p_hdr);
 968                         break;
 969                 case OPCODE_READ_MODIFY_WRITE:
 970                         qla8044_read_modify_write(vha, p_hdr);
 971                         break;
 972                 case OPCODE_SEQ_PAUSE:
 973                         qla8044_pause(vha, p_hdr);
 974                         break;
 975                 case OPCODE_SEQ_END:
 976                         vha->reset_tmplt.seq_end = 1;
 977                         break;
 978                 case OPCODE_TMPL_END:
 979                         qla8044_template_end(vha, p_hdr);
 980                         break;
 981                 case OPCODE_POLL_READ_LIST:
 982                         qla8044_poll_read_list(vha, p_hdr);
 983                         break;
 984                 default:
 985                         ql_log(ql_log_fatal, vha, 0xb097,
 986                             "%s: Unknown command ==> 0x%04x on "
 987                             "entry = %d\n", __func__, p_hdr->cmd, index);
 988                         break;
 989                 }
 990                 /*
 991                  *Set pointer to next entry in the sequence.
 992                 */
 993                 p_entry += p_hdr->size;
 994         }
 995         vha->reset_tmplt.seq_index = index;
 996 }
 997
 998 static void
 999 qla8044_process_init_seq(struct scsi_qla_host *vha)
1000 {
1001         qla8044_process_reset_template(vha,
1002             vha->reset_tmplt.init_offset);
1003         if (vha->reset_tmplt.seq_end != 1)
1004                 ql_log(ql_log_fatal, vha, 0xb098,
1005                     "%s: Abrupt INIT Sub-Sequence end.\n",
1006                     __func__);
1007 }
1008
1009 static void
1010 qla8044_process_stop_seq(struct scsi_qla_host *vha)
1011 {
1012         vha->reset_tmplt.seq_index = 0;
1013         qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset);
1014         if (vha->reset_tmplt.seq_end != 1)
1015                 ql_log(ql_log_fatal, vha, 0xb099,
1016                     "%s: Abrupt STOP Sub-Sequence end.\n", __func__);
1017 }
1018
1019 static void
1020 qla8044_process_start_seq(struct scsi_qla_host *vha)
1021 {
1022         qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset);
1023         if (vha->reset_tmplt.template_end != 1)
1024                 ql_log(ql_log_fatal, vha, 0xb09a,
1025                     "%s: Abrupt START Sub-Sequence end.\n",
1026                     __func__);
1027 }
1028
1029 static int
1030 qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha,
1031         uint32_t flash_addr, uint8_t *p_data, int u32_word_count)
1032 {
1033         uint32_t i;
1034         uint32_t u32_word;
1035         uint32_t flash_offset;
1036         uint32_t addr = flash_addr;
1037         int ret_val = QLA_SUCCESS;
1038
1039         flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1);
1040
1041         if (addr & 0x3) {
1042                 ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n",
1043                     __func__, addr);
1044                 ret_val = QLA_FUNCTION_FAILED;
1045                 goto exit_lockless_read;
1046         }
1047
1048         ret_val = qla8044_wr_reg_indirect(vha,
1049             QLA8044_FLASH_DIRECT_WINDOW, (addr));
1050
1051         if (ret_val != QLA_SUCCESS) {
1052                 ql_log(ql_log_fatal, vha, 0xb09c,
1053                     "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
1054                     __func__, addr);
1055                 goto exit_lockless_read;
1056         }
1057
1058         /* Check if data is spread across multiple sectors  */
1059         if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
1060             (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1061                 /* Multi sector read */
1062                 for (i = 0; i < u32_word_count; i++) {
1063                         ret_val = qla8044_rd_reg_indirect(vha,
1064                             QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1065                         if (ret_val != QLA_SUCCESS) {
1066                                 ql_log(ql_log_fatal, vha, 0xb09d,
1067                                     "%s: failed to read addr 0x%x!\n",
1068                                     __func__, addr);
1069                                 goto exit_lockless_read;
1070                         }
1071                         *(uint32_t *)p_data  = u32_word;
1072                         p_data = p_data + 4;
1073                         addr = addr + 4;
1074                         flash_offset = flash_offset + 4;
1075                         if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1076                                 /* This write is needed once for each sector */
1077                                 ret_val = qla8044_wr_reg_indirect(vha,
1078                                     QLA8044_FLASH_DIRECT_WINDOW, (addr));
1079                                 if (ret_val != QLA_SUCCESS) {
1080                                         ql_log(ql_log_fatal, vha, 0xb09f,
1081                                             "%s: failed to write addr "
1082                                             "0x%x to FLASH_DIRECT_WINDOW!\n",
1083                                             __func__, addr);
1084                                         goto exit_lockless_read;
1085                                 }
1086                                 flash_offset = 0;
1087                         }
1088                 }
1089         } else {
1090                 /* Single sector read */
1091                 for (i = 0; i < u32_word_count; i++) {
1092                         ret_val = qla8044_rd_reg_indirect(vha,
1093                             QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1094                         if (ret_val != QLA_SUCCESS) {
1095                                 ql_log(ql_log_fatal, vha, 0xb0a0,
1096                                     "%s: failed to read addr 0x%x!\n",
1097                                     __func__, addr);
1098                                 goto exit_lockless_read;
1099                         }
1100                         *(uint32_t *)p_data = u32_word;
1101                         p_data = p_data + 4;
1102                         addr = addr + 4;
1103                 }
1104         }
1105
1106 exit_lockless_read:
1107         return ret_val;
1108 }
1109
1110 /*
1111  * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory
1112  *
1113  * @vha : Pointer to adapter structure
1114  * addr : Flash address to write to
1115  * data : Data to be written
1116  * count : word_count to be written
1117  *
1118  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1119  */
1120 static int
1121 qla8044_ms_mem_write_128b(struct scsi_qla_host *vha,
1122         uint64_t addr, uint32_t *data, uint32_t count)
1123 {
1124         int i, j, ret_val = QLA_SUCCESS;
1125         uint32_t agt_ctrl;
1126         unsigned long flags;
1127         struct qla_hw_data *ha = vha->hw;
1128
1129         /* Only 128-bit aligned access */
1130         if (addr & 0xF) {
1131                 ret_val = QLA_FUNCTION_FAILED;
1132                 goto exit_ms_mem_write;
1133         }
1134         write_lock_irqsave(&ha->hw_lock, flags);
1135
1136         /* Write address */
1137         ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1138         if (ret_val == QLA_FUNCTION_FAILED) {
1139                 ql_log(ql_log_fatal, vha, 0xb0a1,
1140                     "%s: write to AGT_ADDR_HI failed!\n", __func__);
1141                 goto exit_ms_mem_write_unlock;
1142         }
1143
1144         for (i = 0; i < count; i++, addr += 16) {
1145                 if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
1146                     QLA8044_ADDR_QDR_NET_MAX)) ||
1147                     (addr_in_range(addr, QLA8044_ADDR_DDR_NET,
1148                         QLA8044_ADDR_DDR_NET_MAX)))) {
1149                         ret_val = QLA_FUNCTION_FAILED;
1150                         goto exit_ms_mem_write_unlock;
1151                 }
1152
1153                 ret_val = qla8044_wr_reg_indirect(vha,
1154                     MD_MIU_TEST_AGT_ADDR_LO, addr);
1155
1156                 /* Write data */
1157                 ret_val += qla8044_wr_reg_indirect(vha,
1158                     MD_MIU_TEST_AGT_WRDATA_LO, *data++);
1159                 ret_val += qla8044_wr_reg_indirect(vha,
1160                     MD_MIU_TEST_AGT_WRDATA_HI, *data++);
1161                 ret_val += qla8044_wr_reg_indirect(vha,
1162                     MD_MIU_TEST_AGT_WRDATA_ULO, *data++);
1163                 ret_val += qla8044_wr_reg_indirect(vha,
1164                     MD_MIU_TEST_AGT_WRDATA_UHI, *data++);
1165                 if (ret_val == QLA_FUNCTION_FAILED) {
1166                         ql_log(ql_log_fatal, vha, 0xb0a2,
1167                             "%s: write to AGT_WRDATA failed!\n",
1168                             __func__);
1169                         goto exit_ms_mem_write_unlock;
1170                 }
1171
1172                 /* Check write status */
1173                 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1174                     MIU_TA_CTL_WRITE_ENABLE);
1175                 ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1176                     MIU_TA_CTL_WRITE_START);
1177                 if (ret_val == QLA_FUNCTION_FAILED) {
1178                         ql_log(ql_log_fatal, vha, 0xb0a3,
1179                             "%s: write to AGT_CTRL failed!\n", __func__);
1180                         goto exit_ms_mem_write_unlock;
1181                 }
1182
1183                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1184                         ret_val = qla8044_rd_reg_indirect(vha,
1185                             MD_MIU_TEST_AGT_CTRL, &agt_ctrl);
1186                         if (ret_val == QLA_FUNCTION_FAILED) {
1187                                 ql_log(ql_log_fatal, vha, 0xb0a4,
1188                                     "%s: failed to read "
1189                                     "MD_MIU_TEST_AGT_CTRL!\n", __func__);
1190                                 goto exit_ms_mem_write_unlock;
1191                         }
1192                         if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1193                                 break;
1194                 }
1195
1196                 /* Status check failed */
1197                 if (j >= MAX_CTL_CHECK) {
1198                         ql_log(ql_log_fatal, vha, 0xb0a5,
1199                             "%s: MS memory write failed!\n",
1200                            __func__);
1201                         ret_val = QLA_FUNCTION_FAILED;
1202                         goto exit_ms_mem_write_unlock;
1203                 }
1204         }
1205
1206 exit_ms_mem_write_unlock:
1207         write_unlock_irqrestore(&ha->hw_lock, flags);
1208
1209 exit_ms_mem_write:
1210         return ret_val;
1211 }
1212
1213 static int
1214 qla8044_copy_bootloader(struct scsi_qla_host *vha)
1215 {
1216         uint8_t *p_cache;
1217         uint32_t src, count, size;
1218         uint64_t dest;
1219         int ret_val = QLA_SUCCESS;
1220         struct qla_hw_data *ha = vha->hw;
1221
1222         src = QLA8044_BOOTLOADER_FLASH_ADDR;
1223         dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR);
1224         size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE);
1225
1226         /* 128 bit alignment check */
1227         if (size & 0xF)
1228                 size = (size + 16) & ~0xF;
1229
1230         /* 16 byte count */
1231         count = size/16;
1232
1233         p_cache = vmalloc(size);
1234         if (p_cache == NULL) {
1235                 ql_log(ql_log_fatal, vha, 0xb0a6,
1236                     "%s: Failed to allocate memory for "
1237                     "boot loader cache\n", __func__);
1238                 ret_val = QLA_FUNCTION_FAILED;
1239                 goto exit_copy_bootloader;
1240         }
1241
1242         ret_val = qla8044_lockless_flash_read_u32(vha, src,
1243             p_cache, size/sizeof(uint32_t));
1244         if (ret_val == QLA_FUNCTION_FAILED) {
1245                 ql_log(ql_log_fatal, vha, 0xb0a7,
1246                     "%s: Error reading F/W from flash!!!\n", __func__);
1247                 goto exit_copy_error;
1248         }
1249         ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n",
1250             __func__);
1251
1252         /* 128 bit/16 byte write to MS memory */
1253         ret_val = qla8044_ms_mem_write_128b(vha, dest,
1254             (uint32_t *)p_cache, count);
1255         if (ret_val == QLA_FUNCTION_FAILED) {
1256                 ql_log(ql_log_fatal, vha, 0xb0a9,
1257                     "%s: Error writing F/W to MS !!!\n", __func__);
1258                 goto exit_copy_error;
1259         }
1260         ql_dbg(ql_dbg_p3p, vha, 0xb0aa,
1261             "%s: Wrote F/W (size %d) to MS !!!\n",
1262             __func__, size);
1263
1264 exit_copy_error:
1265         vfree(p_cache);
1266
1267 exit_copy_bootloader:
1268         return ret_val;
1269 }
1270
1271 static int
1272 qla8044_restart(struct scsi_qla_host *vha)
1273 {
1274         int ret_val = QLA_SUCCESS;
1275         struct qla_hw_data *ha = vha->hw;
1276
1277         qla8044_process_stop_seq(vha);
1278
1279         /* Collect minidump */
1280         if (ql2xmdenable)
1281                 qla8044_get_minidump(vha);
1282         else
1283                 ql_log(ql_log_fatal, vha, 0xb14c,
1284                     "Minidump disabled.\n");
1285
1286         qla8044_process_init_seq(vha);
1287
1288         if (qla8044_copy_bootloader(vha)) {
1289                 ql_log(ql_log_fatal, vha, 0xb0ab,
1290                     "%s: Copy bootloader, firmware restart failed!\n",
1291                     __func__);
1292                 ret_val = QLA_FUNCTION_FAILED;
1293                 goto exit_restart;
1294         }
1295
1296         /*
1297          *  Loads F/W from flash
1298          */
1299         qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH);
1300
1301         qla8044_process_start_seq(vha);
1302
1303 exit_restart:
1304         return ret_val;
1305 }
1306
1307 /*
1308  * qla8044_check_cmd_peg_status - Check peg status to see if Peg is
1309  * initialized.
1310  *
1311  * @ha : Pointer to adapter structure
1312  *
1313  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1314  */
1315 static int
1316 qla8044_check_cmd_peg_status(struct scsi_qla_host *vha)
1317 {
1318         uint32_t val, ret_val = QLA_FUNCTION_FAILED;
1319         int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
1320         struct qla_hw_data *ha = vha->hw;
1321
1322         do {
1323                 val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE);
1324                 if (val == PHAN_INITIALIZE_COMPLETE) {
1325                         ql_dbg(ql_dbg_p3p, vha, 0xb0ac,
1326                             "%s: Command Peg initialization "
1327                             "complete! state=0x%x\n", __func__, val);
1328                         ret_val = QLA_SUCCESS;
1329                         break;
1330                 }
1331                 msleep(CRB_CMDPEG_CHECK_DELAY);
1332         } while (--retries);
1333
1334         return ret_val;
1335 }
1336
1337 static int
1338 qla8044_start_firmware(struct scsi_qla_host *vha)
1339 {
1340         int ret_val = QLA_SUCCESS;
1341
1342         if (qla8044_restart(vha)) {
1343                 ql_log(ql_log_fatal, vha, 0xb0ad,
1344                     "%s: Restart Error!!!, Need Reset!!!\n",
1345                     __func__);
1346                 ret_val = QLA_FUNCTION_FAILED;
1347                 goto exit_start_fw;
1348         } else
1349                 ql_dbg(ql_dbg_p3p, vha, 0xb0af,
1350                     "%s: Restart done!\n", __func__);
1351
1352         ret_val = qla8044_check_cmd_peg_status(vha);
1353         if (ret_val) {
1354                 ql_log(ql_log_fatal, vha, 0xb0b0,
1355                     "%s: Peg not initialized!\n", __func__);
1356                 ret_val = QLA_FUNCTION_FAILED;
1357         }
1358
1359 exit_start_fw:
1360         return ret_val;
1361 }
1362
1363 void
1364 qla8044_clear_drv_active(struct qla_hw_data *ha)
1365 {
1366         uint32_t drv_active;
1367         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1368
1369         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1370         drv_active &= ~(1 << (ha->portnum));
1371
1372         ql_log(ql_log_info, vha, 0xb0b1,
1373             "%s(%ld): drv_active: 0x%08x\n",
1374             __func__, vha->host_no, drv_active);
1375
1376         qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1377 }
1378
1379 /*
1380  * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw
1381  * @ha: pointer to adapter structure
1382  *
1383  * Note: IDC lock must be held upon entry
1384  **/
1385 static int
1386 qla8044_device_bootstrap(struct scsi_qla_host *vha)
1387 {
1388         int rval = QLA_FUNCTION_FAILED;
1389         int i;
1390         uint32_t old_count = 0, count = 0;
1391         int need_reset = 0;
1392         uint32_t idc_ctrl;
1393         struct qla_hw_data *ha = vha->hw;
1394
1395         need_reset = qla8044_need_reset(vha);
1396
1397         if (!need_reset) {
1398                 old_count = qla8044_rd_direct(vha,
1399                     QLA8044_PEG_ALIVE_COUNTER_INDEX);
1400
1401                 for (i = 0; i < 10; i++) {
1402                         msleep(200);
1403
1404                         count = qla8044_rd_direct(vha,
1405                             QLA8044_PEG_ALIVE_COUNTER_INDEX);
1406                         if (count != old_count) {
1407                                 rval = QLA_SUCCESS;
1408                                 goto dev_ready;
1409                         }
1410                 }
1411                 qla8044_flash_lock_recovery(vha);
1412         } else {
1413                 /* We are trying to perform a recovery here. */
1414                 if (ha->flags.isp82xx_fw_hung)
1415                         qla8044_flash_lock_recovery(vha);
1416         }
1417
1418         /* set to DEV_INITIALIZING */
1419         ql_log(ql_log_info, vha, 0xb0b2,
1420             "%s: HW State: INITIALIZING\n", __func__);
1421         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1422             QLA8XXX_DEV_INITIALIZING);
1423
1424         qla8044_idc_unlock(ha);
1425         rval = qla8044_start_firmware(vha);
1426         qla8044_idc_lock(ha);
1427
1428         if (rval != QLA_SUCCESS) {
1429                 ql_log(ql_log_info, vha, 0xb0b3,
1430                      "%s: HW State: FAILED\n", __func__);
1431                 qla8044_clear_drv_active(ha);
1432                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1433                     QLA8XXX_DEV_FAILED);
1434                 return rval;
1435         }
1436
1437         /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after
1438          * device goes to INIT state. */
1439         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1440         if (idc_ctrl & GRACEFUL_RESET_BIT1) {
1441                 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
1442                     (idc_ctrl & ~GRACEFUL_RESET_BIT1));
1443                 ha->fw_dumped = false;
1444         }
1445
1446 dev_ready:
1447         ql_log(ql_log_info, vha, 0xb0b4,
1448             "%s: HW State: READY\n", __func__);
1449         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY);
1450
1451         return rval;
1452 }
1453
1454 /*-------------------------Reset Sequence Functions-----------------------*/
1455 static void
1456 qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha)
1457 {
1458         u8 *phdr;
1459
1460         if (!vha->reset_tmplt.buff) {
1461                 ql_log(ql_log_fatal, vha, 0xb0b5,
1462                     "%s: Error Invalid reset_seq_template\n", __func__);
1463                 return;
1464         }
1465
1466         phdr = vha->reset_tmplt.buff;
1467         ql_dbg(ql_dbg_p3p, vha, 0xb0b6,
1468             "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X"
1469             "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
1470             "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n",
1471             *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
1472             *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
1473             *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
1474             *(phdr+13), *(phdr+14), *(phdr+15));
1475 }
1476
1477 /*
1478  * qla8044_reset_seq_checksum_test - Validate Reset Sequence template.
1479  *
1480  * @ha : Pointer to adapter structure
1481  *
1482  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1483  */
1484 static int
1485 qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha)
1486 {
1487         uint32_t sum =  0;
1488         uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff;
1489         int u16_count =  vha->reset_tmplt.hdr->size / sizeof(uint16_t);
1490
1491         while (u16_count-- > 0)
1492                 sum += *buff++;
1493
1494         while (sum >> 16)
1495                 sum = (sum & 0xFFFF) +  (sum >> 16);
1496
1497         /* checksum of 0 indicates a valid template */
1498         if (~sum) {
1499                 return QLA_SUCCESS;
1500         } else {
1501                 ql_log(ql_log_fatal, vha, 0xb0b7,
1502                     "%s: Reset seq checksum failed\n", __func__);
1503                 return QLA_FUNCTION_FAILED;
1504         }
1505 }
1506
1507 /*
1508  * qla8044_read_reset_template - Read Reset Template from Flash, validate
1509  * the template and store offsets of stop/start/init offsets in ha->reset_tmplt.
1510  *
1511  * @ha : Pointer to adapter structure
1512  */
1513 void
1514 qla8044_read_reset_template(struct scsi_qla_host *vha)
1515 {
1516         uint8_t *p_buff;
1517         uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
1518
1519         vha->reset_tmplt.seq_error = 0;
1520         vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE);
1521         if (vha->reset_tmplt.buff == NULL) {
1522                 ql_log(ql_log_fatal, vha, 0xb0b8,
1523                     "%s: Failed to allocate reset template resources\n",
1524                     __func__);
1525                 goto exit_read_reset_template;
1526         }
1527
1528         p_buff = vha->reset_tmplt.buff;
1529         addr = QLA8044_RESET_TEMPLATE_ADDR;
1530
1531         tmplt_hdr_def_size =
1532             sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t);
1533
1534         ql_dbg(ql_dbg_p3p, vha, 0xb0b9,
1535             "%s: Read template hdr size %d from Flash\n",
1536             __func__, tmplt_hdr_def_size);
1537
1538         /* Copy template header from flash */
1539         if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1540                 ql_log(ql_log_fatal, vha, 0xb0ba,
1541                     "%s: Failed to read reset template\n", __func__);
1542                 goto exit_read_template_error;
1543         }
1544
1545         vha->reset_tmplt.hdr =
1546          (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff;
1547
1548         /* Validate the template header size and signature */
1549         tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
1550         if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
1551             (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
1552                 ql_log(ql_log_fatal, vha, 0xb0bb,
1553                     "%s: Template Header size invalid %d "
1554                     "tmplt_hdr_def_size %d!!!\n", __func__,
1555                     tmplt_hdr_size, tmplt_hdr_def_size);
1556                 goto exit_read_template_error;
1557         }
1558
1559         addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size;
1560         p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size;
1561         tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size -
1562             vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t);
1563
1564         ql_dbg(ql_dbg_p3p, vha, 0xb0bc,
1565             "%s: Read rest of the template size %d\n",
1566             __func__, vha->reset_tmplt.hdr->size);
1567
1568         /* Copy rest of the template */
1569         if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1570                 ql_log(ql_log_fatal, vha, 0xb0bd,
1571                     "%s: Failed to read reset template\n", __func__);
1572                 goto exit_read_template_error;
1573         }
1574
1575         /* Integrity check */
1576         if (qla8044_reset_seq_checksum_test(vha)) {
1577                 ql_log(ql_log_fatal, vha, 0xb0be,
1578                     "%s: Reset Seq checksum failed!\n", __func__);
1579                 goto exit_read_template_error;
1580         }
1581
1582         ql_dbg(ql_dbg_p3p, vha, 0xb0bf,
1583             "%s: Reset Seq checksum passed! Get stop, "
1584             "start and init seq offsets\n", __func__);
1585
1586         /* Get STOP, START, INIT sequence offsets */
1587         vha->reset_tmplt.init_offset = vha->reset_tmplt.buff +
1588             vha->reset_tmplt.hdr->init_seq_offset;
1589
1590         vha->reset_tmplt.start_offset = vha->reset_tmplt.buff +
1591             vha->reset_tmplt.hdr->start_seq_offset;
1592
1593         vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff +
1594             vha->reset_tmplt.hdr->hdr_size;
1595
1596         qla8044_dump_reset_seq_hdr(vha);
1597
1598         goto exit_read_reset_template;
1599
1600 exit_read_template_error:
1601         vfree(vha->reset_tmplt.buff);
1602
1603 exit_read_reset_template:
1604         return;
1605 }
1606
1607 void
1608 qla8044_set_idc_dontreset(struct scsi_qla_host *vha)
1609 {
1610         uint32_t idc_ctrl;
1611         struct qla_hw_data *ha = vha->hw;
1612
1613         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1614         idc_ctrl |= DONTRESET_BIT0;
1615         ql_dbg(ql_dbg_p3p, vha, 0xb0c0,
1616             "%s: idc_ctrl = %d\n", __func__, idc_ctrl);
1617         qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1618 }
1619
1620 static inline void
1621 qla8044_set_rst_ready(struct scsi_qla_host *vha)
1622 {
1623         uint32_t drv_state;
1624         struct qla_hw_data *ha = vha->hw;
1625
1626         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1627
1628         /* For ISP8044, drv_active register has 1 bit per function,
1629          * shift 1 by func_num to set a bit for the function.*/
1630         drv_state |= (1 << ha->portnum);
1631
1632         ql_log(ql_log_info, vha, 0xb0c1,
1633             "%s(%ld): drv_state: 0x%08x\n",
1634             __func__, vha->host_no, drv_state);
1635         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
1636 }
1637
1638 /**
1639  * qla8044_need_reset_handler - Code to start reset sequence
1640  * @vha: pointer to adapter structure
1641  *
1642  * Note: IDC lock must be held upon entry
1643  */
1644 static void
1645 qla8044_need_reset_handler(struct scsi_qla_host *vha)
1646 {
1647         uint32_t dev_state = 0, drv_state, drv_active;
1648         unsigned long reset_timeout;
1649         struct qla_hw_data *ha = vha->hw;
1650
1651         ql_log(ql_log_fatal, vha, 0xb0c2,
1652             "%s: Performing ISP error recovery\n", __func__);
1653
1654         if (vha->flags.online) {
1655                 qla8044_idc_unlock(ha);
1656                 qla2x00_abort_isp_cleanup(vha);
1657                 ha->isp_ops->get_flash_version(vha, vha->req->ring);
1658                 ha->isp_ops->nvram_config(vha);
1659                 qla8044_idc_lock(ha);
1660         }
1661
1662         dev_state = qla8044_rd_direct(vha,
1663             QLA8044_CRB_DEV_STATE_INDEX);
1664         drv_state = qla8044_rd_direct(vha,
1665             QLA8044_CRB_DRV_STATE_INDEX);
1666         drv_active = qla8044_rd_direct(vha,
1667             QLA8044_CRB_DRV_ACTIVE_INDEX);
1668
1669         ql_log(ql_log_info, vha, 0xb0c5,
1670             "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
1671             __func__, vha->host_no, drv_state, drv_active, dev_state);
1672
1673         qla8044_set_rst_ready(vha);
1674
1675         /* wait for 10 seconds for reset ack from all functions */
1676         reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
1677
1678         do {
1679                 if (time_after_eq(jiffies, reset_timeout)) {
1680                         ql_log(ql_log_info, vha, 0xb0c4,
1681                             "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
1682                             __func__, ha->portnum, drv_state, drv_active);
1683                         break;
1684                 }
1685
1686                 qla8044_idc_unlock(ha);
1687                 msleep(1000);
1688                 qla8044_idc_lock(ha);
1689
1690                 dev_state = qla8044_rd_direct(vha,
1691                     QLA8044_CRB_DEV_STATE_INDEX);
1692                 drv_state = qla8044_rd_direct(vha,
1693                     QLA8044_CRB_DRV_STATE_INDEX);
1694                 drv_active = qla8044_rd_direct(vha,
1695                     QLA8044_CRB_DRV_ACTIVE_INDEX);
1696         } while (((drv_state & drv_active) != drv_active) &&
1697             (dev_state == QLA8XXX_DEV_NEED_RESET));
1698
1699         /* Remove IDC participation of functions not acknowledging */
1700         if (drv_state != drv_active) {
1701                 ql_log(ql_log_info, vha, 0xb0c7,
1702                     "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
1703                     __func__, vha->host_no, ha->portnum,
1704                     (drv_active ^ drv_state));
1705                 drv_active = drv_active & drv_state;
1706                 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
1707                     drv_active);
1708         } else {
1709                 /*
1710                  * Reset owner should execute reset recovery,
1711                  * if all functions acknowledged
1712                  */
1713                 if ((ha->flags.nic_core_reset_owner) &&
1714                     (dev_state == QLA8XXX_DEV_NEED_RESET)) {
1715                         ha->flags.nic_core_reset_owner = 0;
1716                         qla8044_device_bootstrap(vha);
1717                         return;
1718                 }
1719         }
1720
1721         /* Exit if non active function */
1722         if (!(drv_active & (1 << ha->portnum))) {
1723                 ha->flags.nic_core_reset_owner = 0;
1724                 return;
1725         }
1726
1727         /*
1728          * Execute Reset Recovery if Reset Owner or Function 7
1729          * is the only active function
1730          */
1731         if (ha->flags.nic_core_reset_owner ||
1732             ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
1733                 ha->flags.nic_core_reset_owner = 0;
1734                 qla8044_device_bootstrap(vha);
1735         }
1736 }
1737
1738 static void
1739 qla8044_set_drv_active(struct scsi_qla_host *vha)
1740 {
1741         uint32_t drv_active;
1742         struct qla_hw_data *ha = vha->hw;
1743
1744         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1745
1746         /* For ISP8044, drv_active register has 1 bit per function,
1747          * shift 1 by func_num to set a bit for the function.*/
1748         drv_active |= (1 << ha->portnum);
1749
1750         ql_log(ql_log_info, vha, 0xb0c8,
1751             "%s(%ld): drv_active: 0x%08x\n",
1752             __func__, vha->host_no, drv_active);
1753         qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1754 }
1755
1756 static int
1757 qla8044_check_drv_active(struct scsi_qla_host *vha)
1758 {
1759         uint32_t drv_active;
1760         struct qla_hw_data *ha = vha->hw;
1761
1762         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1763         if (drv_active & (1 << ha->portnum))
1764                 return QLA_SUCCESS;
1765         else
1766                 return QLA_TEST_FAILED;
1767 }
1768
1769 static void
1770 qla8044_clear_idc_dontreset(struct scsi_qla_host *vha)
1771 {
1772         uint32_t idc_ctrl;
1773         struct qla_hw_data *ha = vha->hw;
1774
1775         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1776         idc_ctrl &= ~DONTRESET_BIT0;
1777         ql_log(ql_log_info, vha, 0xb0c9,
1778             "%s: idc_ctrl = %d\n", __func__,
1779             idc_ctrl);
1780         qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1781 }
1782
1783 static int
1784 qla8044_set_idc_ver(struct scsi_qla_host *vha)
1785 {
1786         int idc_ver;
1787         uint32_t drv_active;
1788         int rval = QLA_SUCCESS;
1789         struct qla_hw_data *ha = vha->hw;
1790
1791         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1792         if (drv_active == (1 << ha->portnum)) {
1793                 idc_ver = qla8044_rd_direct(vha,
1794                     QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1795                 idc_ver &= (~0xFF);
1796                 idc_ver |= QLA8044_IDC_VER_MAJ_VALUE;
1797                 qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX,
1798                     idc_ver);
1799                 ql_log(ql_log_info, vha, 0xb0ca,
1800                     "%s: IDC version updated to %d\n",
1801                     __func__, idc_ver);
1802         } else {
1803                 idc_ver = qla8044_rd_direct(vha,
1804                     QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1805                 idc_ver &= 0xFF;
1806                 if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) {
1807                         ql_log(ql_log_info, vha, 0xb0cb,
1808                             "%s: qla4xxx driver IDC version %d "
1809                             "is not compatible with IDC version %d "
1810                             "of other drivers!\n",
1811                             __func__, QLA8044_IDC_VER_MAJ_VALUE,
1812                             idc_ver);
1813                         rval = QLA_FUNCTION_FAILED;
1814                         goto exit_set_idc_ver;
1815                 }
1816         }
1817
1818         /* Update IDC_MINOR_VERSION */
1819         idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR);
1820         idc_ver &= ~(0x03 << (ha->portnum * 2));
1821         idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2));
1822         qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver);
1823
1824 exit_set_idc_ver:
1825         return rval;
1826 }
1827
1828 static int
1829 qla8044_update_idc_reg(struct scsi_qla_host *vha)
1830 {
1831         uint32_t drv_active;
1832         int rval = QLA_SUCCESS;
1833         struct qla_hw_data *ha = vha->hw;
1834
1835         if (vha->flags.init_done)
1836                 goto exit_update_idc_reg;
1837
1838         qla8044_idc_lock(ha);
1839         qla8044_set_drv_active(vha);
1840
1841         drv_active = qla8044_rd_direct(vha,
1842             QLA8044_CRB_DRV_ACTIVE_INDEX);
1843
1844         /* If we are the first driver to load and
1845          * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */
1846         if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba)
1847                 qla8044_clear_idc_dontreset(vha);
1848
1849         rval = qla8044_set_idc_ver(vha);
1850         if (rval == QLA_FUNCTION_FAILED)
1851                 qla8044_clear_drv_active(ha);
1852         qla8044_idc_unlock(ha);
1853
1854 exit_update_idc_reg:
1855         return rval;
1856 }
1857
1858 /**
1859  * qla8044_need_qsnt_handler - Code to start qsnt
1860  * @vha: pointer to adapter structure
1861  */
1862 static void
1863 qla8044_need_qsnt_handler(struct scsi_qla_host *vha)
1864 {
1865         unsigned long qsnt_timeout;
1866         uint32_t drv_state, drv_active, dev_state;
1867         struct qla_hw_data *ha = vha->hw;
1868
1869         if (vha->flags.online)
1870                 qla2x00_quiesce_io(vha);
1871         else
1872                 return;
1873
1874         qla8044_set_qsnt_ready(vha);
1875
1876         /* Wait for 30 secs for all functions to ack qsnt mode */
1877         qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ);
1878         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1879         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1880
1881         /* Shift drv_active by 1 to match drv_state. As quiescent ready bit
1882            position is at bit 1 and drv active is at bit 0 */
1883         drv_active = drv_active << 1;
1884
1885         while (drv_state != drv_active) {
1886                 if (time_after_eq(jiffies, qsnt_timeout)) {
1887                         /* Other functions did not ack, changing state to
1888                          * DEV_READY
1889                          */
1890                         clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1891                         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1892                                             QLA8XXX_DEV_READY);
1893                         qla8044_clear_qsnt_ready(vha);
1894                         ql_log(ql_log_info, vha, 0xb0cc,
1895                             "Timeout waiting for quiescent ack!!!\n");
1896                         return;
1897                 }
1898                 qla8044_idc_unlock(ha);
1899                 msleep(1000);
1900                 qla8044_idc_lock(ha);
1901
1902                 drv_state = qla8044_rd_direct(vha,
1903                     QLA8044_CRB_DRV_STATE_INDEX);
1904                 drv_active = qla8044_rd_direct(vha,
1905                     QLA8044_CRB_DRV_ACTIVE_INDEX);
1906                 drv_active = drv_active << 1;
1907         }
1908
1909         /* All functions have Acked. Set quiescent state */
1910         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1911
1912         if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
1913                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1914                     QLA8XXX_DEV_QUIESCENT);
1915                 ql_log(ql_log_info, vha, 0xb0cd,
1916                     "%s: HW State: QUIESCENT\n", __func__);
1917         }
1918 }
1919
1920 /*
1921  * qla8044_device_state_handler - Adapter state machine
1922  * @ha: pointer to host adapter structure.
1923  *
1924  * Note: IDC lock must be UNLOCKED upon entry
1925  **/
1926 int
1927 qla8044_device_state_handler(struct scsi_qla_host *vha)
1928 {
1929         uint32_t dev_state;
1930         int rval = QLA_SUCCESS;
1931         unsigned long dev_init_timeout;
1932         struct qla_hw_data *ha = vha->hw;
1933
1934         rval = qla8044_update_idc_reg(vha);
1935         if (rval == QLA_FUNCTION_FAILED)
1936                 goto exit_error;
1937
1938         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1939         ql_dbg(ql_dbg_p3p, vha, 0xb0ce,
1940             "Device state is 0x%x = %s\n",
1941             dev_state, dev_state < MAX_STATES ?
1942             qdev_state(dev_state) : "Unknown");
1943
1944         /* wait for 30 seconds for device to go ready */
1945         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
1946
1947         qla8044_idc_lock(ha);
1948
1949         while (1) {
1950                 if (time_after_eq(jiffies, dev_init_timeout)) {
1951                         if (qla8044_check_drv_active(vha) == QLA_SUCCESS) {
1952                                 ql_log(ql_log_warn, vha, 0xb0cf,
1953                                     "%s: Device Init Failed 0x%x = %s\n",
1954                                     QLA2XXX_DRIVER_NAME, dev_state,
1955                                     dev_state < MAX_STATES ?
1956                                     qdev_state(dev_state) : "Unknown");
1957                                 qla8044_wr_direct(vha,
1958                                     QLA8044_CRB_DEV_STATE_INDEX,
1959                                     QLA8XXX_DEV_FAILED);
1960                         }
1961                 }
1962
1963                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1964                 ql_log(ql_log_info, vha, 0xb0d0,
1965                     "Device state is 0x%x = %s\n",
1966                     dev_state, dev_state < MAX_STATES ?
1967                     qdev_state(dev_state) : "Unknown");
1968
1969                 /* NOTE: Make sure idc unlocked upon exit of switch statement */
1970                 switch (dev_state) {
1971                 case QLA8XXX_DEV_READY:
1972                         ha->flags.nic_core_reset_owner = 0;
1973                         goto exit;
1974                 case QLA8XXX_DEV_COLD:
1975                         rval = qla8044_device_bootstrap(vha);
1976                         break;
1977                 case QLA8XXX_DEV_INITIALIZING:
1978                         qla8044_idc_unlock(ha);
1979                         msleep(1000);
1980                         qla8044_idc_lock(ha);
1981                         break;
1982                 case QLA8XXX_DEV_NEED_RESET:
1983                         /* For ISP8044, if NEED_RESET is set by any driver,
1984                          * it should be honored, irrespective of IDC_CTRL
1985                          * DONTRESET_BIT0 */
1986                         qla8044_need_reset_handler(vha);
1987                         break;
1988                 case QLA8XXX_DEV_NEED_QUIESCENT:
1989                         /* idc locked/unlocked in handler */
1990                         qla8044_need_qsnt_handler(vha);
1991
1992                         /* Reset the init timeout after qsnt handler */
1993                         dev_init_timeout = jiffies +
1994                             (ha->fcoe_reset_timeout * HZ);
1995                         break;
1996                 case QLA8XXX_DEV_QUIESCENT:
1997                         ql_log(ql_log_info, vha, 0xb0d1,
1998                             "HW State: QUIESCENT\n");
1999
2000                         qla8044_idc_unlock(ha);
2001                         msleep(1000);
2002                         qla8044_idc_lock(ha);
2003
2004                         /* Reset the init timeout after qsnt handler */
2005                         dev_init_timeout = jiffies +
2006                             (ha->fcoe_reset_timeout * HZ);
2007                         break;
2008                 case QLA8XXX_DEV_FAILED:
2009                         ha->flags.nic_core_reset_owner = 0;
2010                         qla8044_idc_unlock(ha);
2011                         qla8xxx_dev_failed_handler(vha);
2012                         rval = QLA_FUNCTION_FAILED;
2013                         qla8044_idc_lock(ha);
2014                         goto exit;
2015                 default:
2016                         qla8044_idc_unlock(ha);
2017                         qla8xxx_dev_failed_handler(vha);
2018                         rval = QLA_FUNCTION_FAILED;
2019                         qla8044_idc_lock(ha);
2020                         goto exit;
2021                 }
2022         }
2023 exit:
2024         qla8044_idc_unlock(ha);
2025
2026 exit_error:
2027         return rval;
2028 }
2029
2030 /**
2031  * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2032  * @vha: adapter block pointer.
2033  *
2034  * Note: The caller should not hold the idc lock.
2035  */
2036 static int
2037 qla8044_check_temp(struct scsi_qla_host *vha)
2038 {
2039         uint32_t temp, temp_state, temp_val;
2040         int status = QLA_SUCCESS;
2041
2042         temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2043         temp_state = qla82xx_get_temp_state(temp);
2044         temp_val = qla82xx_get_temp_val(temp);
2045
2046         if (temp_state == QLA82XX_TEMP_PANIC) {
2047                 ql_log(ql_log_warn, vha, 0xb0d2,
2048                     "Device temperature %d degrees C"
2049                     " exceeds maximum allowed. Hardware has been shut"
2050                     " down\n", temp_val);
2051                 status = QLA_FUNCTION_FAILED;
2052                 return status;
2053         } else if (temp_state == QLA82XX_TEMP_WARN) {
2054                 ql_log(ql_log_warn, vha, 0xb0d3,
2055                     "Device temperature %d"
2056                     " degrees C exceeds operating range."
2057                     " Immediate action needed.\n", temp_val);
2058         }
2059         return 0;
2060 }
2061
2062 int qla8044_read_temperature(scsi_qla_host_t *vha)
2063 {
2064         uint32_t temp;
2065
2066         temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2067         return qla82xx_get_temp_val(temp);
2068 }
2069
2070 /**
2071  * qla8044_check_fw_alive  - Check firmware health
2072  * @vha: Pointer to host adapter structure.
2073  *
2074  * Context: Interrupt
2075  */
2076 int
2077 qla8044_check_fw_alive(struct scsi_qla_host *vha)
2078 {
2079         uint32_t fw_heartbeat_counter;
2080         uint32_t halt_status1, halt_status2;
2081         int status = QLA_SUCCESS;
2082
2083         fw_heartbeat_counter = qla8044_rd_direct(vha,
2084             QLA8044_PEG_ALIVE_COUNTER_INDEX);
2085
2086         /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2087         if (fw_heartbeat_counter == 0xffffffff) {
2088                 ql_dbg(ql_dbg_p3p, vha, 0xb0d4,
2089                     "scsi%ld: %s: Device in frozen "
2090                     "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2091                     vha->host_no, __func__);
2092                 return status;
2093         }
2094
2095         if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
2096                 vha->seconds_since_last_heartbeat++;
2097                 /* FW not alive after 2 seconds */
2098                 if (vha->seconds_since_last_heartbeat == 2) {
2099                         vha->seconds_since_last_heartbeat = 0;
2100                         halt_status1 = qla8044_rd_direct(vha,
2101                             QLA8044_PEG_HALT_STATUS1_INDEX);
2102                         halt_status2 = qla8044_rd_direct(vha,
2103                             QLA8044_PEG_HALT_STATUS2_INDEX);
2104
2105                         ql_log(ql_log_info, vha, 0xb0d5,
2106                             "scsi(%ld): %s, ISP8044 "
2107                             "Dumping hw/fw registers:\n"
2108                             " PEG_HALT_STATUS1: 0x%x, "
2109                             "PEG_HALT_STATUS2: 0x%x,\n",
2110                             vha->host_no, __func__, halt_status1,
2111                             halt_status2);
2112                         status = QLA_FUNCTION_FAILED;
2113                 }
2114         } else
2115                 vha->seconds_since_last_heartbeat = 0;
2116
2117         vha->fw_heartbeat_counter = fw_heartbeat_counter;
2118         return status;
2119 }
2120
2121 void
2122 qla8044_watchdog(struct scsi_qla_host *vha)
2123 {
2124         uint32_t dev_state, halt_status;
2125         int halt_status_unrecoverable = 0;
2126         struct qla_hw_data *ha = vha->hw;
2127
2128         /* don't poll if reset is going on or FW hang in quiescent state */
2129         if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
2130             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) {
2131                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
2132
2133                 if (qla8044_check_fw_alive(vha)) {
2134                         ha->flags.isp82xx_fw_hung = 1;
2135                         ql_log(ql_log_warn, vha, 0xb10a,
2136                             "Firmware hung.\n");
2137                         qla82xx_clear_pending_mbx(vha);
2138                 }
2139
2140                 if (qla8044_check_temp(vha)) {
2141                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
2142                         ha->flags.isp82xx_fw_hung = 1;
2143                         qla2xxx_wake_dpc(vha);
2144                 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
2145                            !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
2146                         ql_log(ql_log_info, vha, 0xb0d6,
2147                             "%s: HW State: NEED RESET!\n",
2148                             __func__);
2149                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2150                         qla2xxx_wake_dpc(vha);
2151                 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
2152                     !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
2153                         ql_log(ql_log_info, vha, 0xb0d7,
2154                             "%s: HW State: NEED QUIES detected!\n",
2155                             __func__);
2156                         set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
2157                         qla2xxx_wake_dpc(vha);
2158                 } else  {
2159                         /* Check firmware health */
2160                         if (ha->flags.isp82xx_fw_hung) {
2161                                 halt_status = qla8044_rd_direct(vha,
2162                                         QLA8044_PEG_HALT_STATUS1_INDEX);
2163                                 if (halt_status &
2164                                     QLA8044_HALT_STATUS_FW_RESET) {
2165                                         ql_log(ql_log_fatal, vha,
2166                                             0xb0d8, "%s: Firmware "
2167                                             "error detected device "
2168                                             "is being reset\n",
2169                                             __func__);
2170                                 } else if (halt_status &
2171                                             QLA8044_HALT_STATUS_UNRECOVERABLE) {
2172                                                 halt_status_unrecoverable = 1;
2173                                 }
2174
2175                                 /* Since we cannot change dev_state in interrupt
2176                                  * context, set appropriate DPC flag then wakeup
2177                                  *  DPC */
2178                                 if (halt_status_unrecoverable) {
2179                                         set_bit(ISP_UNRECOVERABLE,
2180                                             &vha->dpc_flags);
2181                                 } else {
2182                                         if (dev_state ==
2183                                             QLA8XXX_DEV_QUIESCENT) {
2184                                                 set_bit(FCOE_CTX_RESET_NEEDED,
2185                                                     &vha->dpc_flags);
2186                                                 ql_log(ql_log_info, vha, 0xb0d9,
2187                                                     "%s: FW CONTEXT Reset "
2188                                                     "needed!\n", __func__);
2189                                         } else {
2190                                                 ql_log(ql_log_info, vha,
2191                                                     0xb0da, "%s: "
2192                                                     "detect abort needed\n",
2193                                                     __func__);
2194                                                 set_bit(ISP_ABORT_NEEDED,
2195                                                     &vha->dpc_flags);
2196                                         }
2197                                 }
2198                                 qla2xxx_wake_dpc(vha);
2199                         }
2200                 }
2201
2202         }
2203 }
2204
2205 static int
2206 qla8044_minidump_process_control(struct scsi_qla_host *vha,
2207                                  struct qla8044_minidump_entry_hdr *entry_hdr)
2208 {
2209         struct qla8044_minidump_entry_crb *crb_entry;
2210         uint32_t read_value, opcode, poll_time, addr, index;
2211         uint32_t crb_addr, rval = QLA_SUCCESS;
2212         unsigned long wtime;
2213         struct qla8044_minidump_template_hdr *tmplt_hdr;
2214         int i;
2215         struct qla_hw_data *ha = vha->hw;
2216
2217         ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__);
2218         tmplt_hdr = (struct qla8044_minidump_template_hdr *)
2219                 ha->md_tmplt_hdr;
2220         crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr;
2221
2222         crb_addr = crb_entry->addr;
2223         for (i = 0; i < crb_entry->op_count; i++) {
2224                 opcode = crb_entry->crb_ctrl.opcode;
2225
2226                 if (opcode & QLA82XX_DBG_OPCODE_WR) {
2227                         qla8044_wr_reg_indirect(vha, crb_addr,
2228                             crb_entry->value_1);
2229                         opcode &= ~QLA82XX_DBG_OPCODE_WR;
2230                 }
2231
2232                 if (opcode & QLA82XX_DBG_OPCODE_RW) {
2233                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2234                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2235                         opcode &= ~QLA82XX_DBG_OPCODE_RW;
2236                 }
2237
2238                 if (opcode & QLA82XX_DBG_OPCODE_AND) {
2239                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2240                         read_value &= crb_entry->value_2;
2241                         opcode &= ~QLA82XX_DBG_OPCODE_AND;
2242                         if (opcode & QLA82XX_DBG_OPCODE_OR) {
2243                                 read_value |= crb_entry->value_3;
2244                                 opcode &= ~QLA82XX_DBG_OPCODE_OR;
2245                         }
2246                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2247                 }
2248                 if (opcode & QLA82XX_DBG_OPCODE_OR) {
2249                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2250                         read_value |= crb_entry->value_3;
2251                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2252                         opcode &= ~QLA82XX_DBG_OPCODE_OR;
2253                 }
2254                 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
2255                         poll_time = crb_entry->crb_strd.poll_timeout;
2256                         wtime = jiffies + poll_time;
2257                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2258
2259                         do {
2260                                 if ((read_value & crb_entry->value_2) ==
2261                                     crb_entry->value_1) {
2262                                         break;
2263                                 } else if (time_after_eq(jiffies, wtime)) {
2264                                         /* capturing dump failed */
2265                                         rval = QLA_FUNCTION_FAILED;
2266                                         break;
2267                                 } else {
2268                                         qla8044_rd_reg_indirect(vha,
2269                                             crb_addr, &read_value);
2270                                 }
2271                         } while (1);
2272                         opcode &= ~QLA82XX_DBG_OPCODE_POLL;
2273                 }
2274
2275                 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
2276                         if (crb_entry->crb_strd.state_index_a) {
2277                                 index = crb_entry->crb_strd.state_index_a;
2278                                 addr = tmplt_hdr->saved_state_array[index];
2279                         } else {
2280                                 addr = crb_addr;
2281                         }
2282
2283                         qla8044_rd_reg_indirect(vha, addr, &read_value);
2284                         index = crb_entry->crb_ctrl.state_index_v;
2285                         tmplt_hdr->saved_state_array[index] = read_value;
2286                         opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
2287                 }
2288
2289                 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
2290                         if (crb_entry->crb_strd.state_index_a) {
2291                                 index = crb_entry->crb_strd.state_index_a;
2292                                 addr = tmplt_hdr->saved_state_array[index];
2293                         } else {
2294                                 addr = crb_addr;
2295                         }
2296
2297                         if (crb_entry->crb_ctrl.state_index_v) {
2298                                 index = crb_entry->crb_ctrl.state_index_v;
2299                                 read_value =
2300                                     tmplt_hdr->saved_state_array[index];
2301                         } else {
2302                                 read_value = crb_entry->value_1;
2303                         }
2304
2305                         qla8044_wr_reg_indirect(vha, addr, read_value);
2306                         opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
2307                 }
2308
2309                 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
2310                         index = crb_entry->crb_ctrl.state_index_v;
2311                         read_value = tmplt_hdr->saved_state_array[index];
2312                         read_value <<= crb_entry->crb_ctrl.shl;
2313                         read_value >>= crb_entry->crb_ctrl.shr;
2314                         if (crb_entry->value_2)
2315                                 read_value &= crb_entry->value_2;
2316                         read_value |= crb_entry->value_3;
2317                         read_value += crb_entry->value_1;
2318                         tmplt_hdr->saved_state_array[index] = read_value;
2319                         opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
2320                 }
2321                 crb_addr += crb_entry->crb_strd.addr_stride;
2322         }
2323         return rval;
2324 }
2325
2326 static void
2327 qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha,
2328         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2329 {
2330         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2331         struct qla8044_minidump_entry_crb *crb_hdr;
2332         uint32_t *data_ptr = *d_ptr;
2333
2334         ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__);
2335         crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr;
2336         r_addr = crb_hdr->addr;
2337         r_stride = crb_hdr->crb_strd.addr_stride;
2338         loop_cnt = crb_hdr->op_count;
2339
2340         for (i = 0; i < loop_cnt; i++) {
2341                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2342                 *data_ptr++ = r_addr;
2343                 *data_ptr++ = r_value;
2344                 r_addr += r_stride;
2345         }
2346         *d_ptr = data_ptr;
2347 }
2348
2349 static int
2350 qla8044_minidump_process_rdmem(struct scsi_qla_host *vha,
2351         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2352 {
2353         uint32_t r_addr, r_value, r_data;
2354         uint32_t i, j, loop_cnt;
2355         struct qla8044_minidump_entry_rdmem *m_hdr;
2356         unsigned long flags;
2357         uint32_t *data_ptr = *d_ptr;
2358         struct qla_hw_data *ha = vha->hw;
2359
2360         ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__);
2361         m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr;
2362         r_addr = m_hdr->read_addr;
2363         loop_cnt = m_hdr->read_data_size/16;
2364
2365         ql_dbg(ql_dbg_p3p, vha, 0xb0f0,
2366             "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2367             __func__, r_addr, m_hdr->read_data_size);
2368
2369         if (r_addr & 0xf) {
2370                 ql_dbg(ql_dbg_p3p, vha, 0xb0f1,
2371                     "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2372                     __func__, r_addr);
2373                 return QLA_FUNCTION_FAILED;
2374         }
2375
2376         if (m_hdr->read_data_size % 16) {
2377                 ql_dbg(ql_dbg_p3p, vha, 0xb0f2,
2378                     "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2379                     __func__, m_hdr->read_data_size);
2380                 return QLA_FUNCTION_FAILED;
2381         }
2382
2383         ql_dbg(ql_dbg_p3p, vha, 0xb0f3,
2384             "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2385             __func__, r_addr, m_hdr->read_data_size, loop_cnt);
2386
2387         write_lock_irqsave(&ha->hw_lock, flags);
2388         for (i = 0; i < loop_cnt; i++) {
2389                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr);
2390                 r_value = 0;
2391                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value);
2392                 r_value = MIU_TA_CTL_ENABLE;
2393                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2394                 r_value = MIU_TA_CTL_START_ENABLE;
2395                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2396
2397                 for (j = 0; j < MAX_CTL_CHECK; j++) {
2398                         qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
2399                             &r_value);
2400                         if ((r_value & MIU_TA_CTL_BUSY) == 0)
2401                                 break;
2402                 }
2403
2404                 if (j >= MAX_CTL_CHECK) {
2405                         write_unlock_irqrestore(&ha->hw_lock, flags);
2406                         return QLA_SUCCESS;
2407                 }
2408
2409                 for (j = 0; j < 4; j++) {
2410                         qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j],
2411                             &r_data);
2412                         *data_ptr++ = r_data;
2413                 }
2414
2415                 r_addr += 16;
2416         }
2417         write_unlock_irqrestore(&ha->hw_lock, flags);
2418
2419         ql_dbg(ql_dbg_p3p, vha, 0xb0f4,
2420             "Leaving fn: %s datacount: 0x%x\n",
2421              __func__, (loop_cnt * 16));
2422
2423         *d_ptr = data_ptr;
2424         return QLA_SUCCESS;
2425 }
2426
2427 /* ISP83xx flash read for _RDROM _BOARD */
2428 static uint32_t
2429 qla8044_minidump_process_rdrom(struct scsi_qla_host *vha,
2430         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2431 {
2432         uint32_t fl_addr, u32_count, rval;
2433         struct qla8044_minidump_entry_rdrom *rom_hdr;
2434         uint32_t *data_ptr = *d_ptr;
2435
2436         rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr;
2437         fl_addr = rom_hdr->read_addr;
2438         u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t);
2439
2440         ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2441             __func__, fl_addr, u32_count);
2442
2443         rval = qla8044_lockless_flash_read_u32(vha, fl_addr,
2444             (u8 *)(data_ptr), u32_count);
2445
2446         if (rval != QLA_SUCCESS) {
2447                 ql_log(ql_log_fatal, vha, 0xb0f6,
2448                     "%s: Flash Read Error,Count=%d\n", __func__, u32_count);
2449                 return QLA_FUNCTION_FAILED;
2450         } else {
2451                 data_ptr += u32_count;
2452                 *d_ptr = data_ptr;
2453                 return QLA_SUCCESS;
2454         }
2455 }
2456
2457 static void
2458 qla8044_mark_entry_skipped(struct scsi_qla_host *vha,
2459         struct qla8044_minidump_entry_hdr *entry_hdr, int index)
2460 {
2461         entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
2462
2463         ql_log(ql_log_info, vha, 0xb0f7,
2464             "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2465             vha->host_no, index, entry_hdr->entry_type,
2466             entry_hdr->d_ctrl.entry_capture_mask);
2467 }
2468
2469 static int
2470 qla8044_minidump_process_l2tag(struct scsi_qla_host *vha,
2471         struct qla8044_minidump_entry_hdr *entry_hdr,
2472                                  uint32_t **d_ptr)
2473 {
2474         uint32_t addr, r_addr, c_addr, t_r_addr;
2475         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2476         unsigned long p_wait, w_time, p_mask;
2477         uint32_t c_value_w, c_value_r;
2478         struct qla8044_minidump_entry_cache *cache_hdr;
2479         int rval = QLA_FUNCTION_FAILED;
2480         uint32_t *data_ptr = *d_ptr;
2481
2482         ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__);
2483         cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2484
2485         loop_count = cache_hdr->op_count;
2486         r_addr = cache_hdr->read_addr;
2487         c_addr = cache_hdr->control_addr;
2488         c_value_w = cache_hdr->cache_ctrl.write_value;
2489
2490         t_r_addr = cache_hdr->tag_reg_addr;
2491         t_value = cache_hdr->addr_ctrl.init_tag_value;
2492         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2493         p_wait = cache_hdr->cache_ctrl.poll_wait;
2494         p_mask = cache_hdr->cache_ctrl.poll_mask;
2495
2496         for (i = 0; i < loop_count; i++) {
2497                 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2498                 if (c_value_w)
2499                         qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2500
2501                 if (p_mask) {
2502                         w_time = jiffies + p_wait;
2503                         do {
2504                                 qla8044_rd_reg_indirect(vha, c_addr,
2505                                     &c_value_r);
2506                                 if ((c_value_r & p_mask) == 0) {
2507                                         break;
2508                                 } else if (time_after_eq(jiffies, w_time)) {
2509                                         /* capturing dump failed */
2510                                         return rval;
2511                                 }
2512                         } while (1);
2513                 }
2514
2515                 addr = r_addr;
2516                 for (k = 0; k < r_cnt; k++) {
2517                         qla8044_rd_reg_indirect(vha, addr, &r_value);
2518                         *data_ptr++ = r_value;
2519                         addr += cache_hdr->read_ctrl.read_addr_stride;
2520                 }
2521                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2522         }
2523         *d_ptr = data_ptr;
2524         return QLA_SUCCESS;
2525 }
2526
2527 static void
2528 qla8044_minidump_process_l1cache(struct scsi_qla_host *vha,
2529         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2530 {
2531         uint32_t addr, r_addr, c_addr, t_r_addr;
2532         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2533         uint32_t c_value_w;
2534         struct qla8044_minidump_entry_cache *cache_hdr;
2535         uint32_t *data_ptr = *d_ptr;
2536
2537         cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2538         loop_count = cache_hdr->op_count;
2539         r_addr = cache_hdr->read_addr;
2540         c_addr = cache_hdr->control_addr;
2541         c_value_w = cache_hdr->cache_ctrl.write_value;
2542
2543         t_r_addr = cache_hdr->tag_reg_addr;
2544         t_value = cache_hdr->addr_ctrl.init_tag_value;
2545         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2546
2547         for (i = 0; i < loop_count; i++) {
2548                 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2549                 qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2550                 addr = r_addr;
2551                 for (k = 0; k < r_cnt; k++) {
2552                         qla8044_rd_reg_indirect(vha, addr, &r_value);
2553                         *data_ptr++ = r_value;
2554                         addr += cache_hdr->read_ctrl.read_addr_stride;
2555                 }
2556                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2557         }
2558         *d_ptr = data_ptr;
2559 }
2560
2561 static void
2562 qla8044_minidump_process_rdocm(struct scsi_qla_host *vha,
2563         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2564 {
2565         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2566         struct qla8044_minidump_entry_rdocm *ocm_hdr;
2567         uint32_t *data_ptr = *d_ptr;
2568         struct qla_hw_data *ha = vha->hw;
2569
2570         ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__);
2571
2572         ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr;
2573         r_addr = ocm_hdr->read_addr;
2574         r_stride = ocm_hdr->read_addr_stride;
2575         loop_cnt = ocm_hdr->op_count;
2576
2577         ql_dbg(ql_dbg_p3p, vha, 0xb0fa,
2578             "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2579             __func__, r_addr, r_stride, loop_cnt);
2580
2581         for (i = 0; i < loop_cnt; i++) {
2582                 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2583                 *data_ptr++ = r_value;
2584                 r_addr += r_stride;
2585         }
2586         ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n",
2587             __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t)));
2588
2589         *d_ptr = data_ptr;
2590 }
2591
2592 static void
2593 qla8044_minidump_process_rdmux(struct scsi_qla_host *vha,
2594         struct qla8044_minidump_entry_hdr *entry_hdr,
2595         uint32_t **d_ptr)
2596 {
2597         uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value = 0;
2598         struct qla8044_minidump_entry_mux *mux_hdr;
2599         uint32_t *data_ptr = *d_ptr;
2600
2601         ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__);
2602
2603         mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr;
2604         r_addr = mux_hdr->read_addr;
2605         s_addr = mux_hdr->select_addr;
2606         s_stride = mux_hdr->select_value_stride;
2607         s_value = mux_hdr->select_value;
2608         loop_cnt = mux_hdr->op_count;
2609
2610         for (i = 0; i < loop_cnt; i++) {
2611                 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2612                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2613                 *data_ptr++ = s_value;
2614                 *data_ptr++ = r_value;
2615                 s_value += s_stride;
2616         }
2617         *d_ptr = data_ptr;
2618 }
2619
2620 static void
2621 qla8044_minidump_process_queue(struct scsi_qla_host *vha,
2622         struct qla8044_minidump_entry_hdr *entry_hdr,
2623         uint32_t **d_ptr)
2624 {
2625         uint32_t s_addr, r_addr;
2626         uint32_t r_stride, r_value, r_cnt, qid = 0;
2627         uint32_t i, k, loop_cnt;
2628         struct qla8044_minidump_entry_queue *q_hdr;
2629         uint32_t *data_ptr = *d_ptr;
2630
2631         ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__);
2632         q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr;
2633         s_addr = q_hdr->select_addr;
2634         r_cnt = q_hdr->rd_strd.read_addr_cnt;
2635         r_stride = q_hdr->rd_strd.read_addr_stride;
2636         loop_cnt = q_hdr->op_count;
2637
2638         for (i = 0; i < loop_cnt; i++) {
2639                 qla8044_wr_reg_indirect(vha, s_addr, qid);
2640                 r_addr = q_hdr->read_addr;
2641                 for (k = 0; k < r_cnt; k++) {
2642                         qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2643                         *data_ptr++ = r_value;
2644                         r_addr += r_stride;
2645                 }
2646                 qid += q_hdr->q_strd.queue_id_stride;
2647         }
2648         *d_ptr = data_ptr;
2649 }
2650
2651 /* ISP83xx functions to process new minidump entries... */
2652 static uint32_t
2653 qla8044_minidump_process_pollrd(struct scsi_qla_host *vha,
2654         struct qla8044_minidump_entry_hdr *entry_hdr,
2655         uint32_t **d_ptr)
2656 {
2657         uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2658         uint16_t s_stride, i;
2659         struct qla8044_minidump_entry_pollrd *pollrd_hdr;
2660         uint32_t *data_ptr = *d_ptr;
2661
2662         pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr;
2663         s_addr = pollrd_hdr->select_addr;
2664         r_addr = pollrd_hdr->read_addr;
2665         s_value = pollrd_hdr->select_value;
2666         s_stride = pollrd_hdr->select_value_stride;
2667
2668         poll_wait = pollrd_hdr->poll_wait;
2669         poll_mask = pollrd_hdr->poll_mask;
2670
2671         for (i = 0; i < pollrd_hdr->op_count; i++) {
2672                 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2673                 poll_wait = pollrd_hdr->poll_wait;
2674                 while (1) {
2675                         qla8044_rd_reg_indirect(vha, s_addr, &r_value);
2676                         if ((r_value & poll_mask) != 0) {
2677                                 break;
2678                         } else {
2679                                 usleep_range(1000, 1100);
2680                                 if (--poll_wait == 0) {
2681                                         ql_log(ql_log_fatal, vha, 0xb0fe,
2682                                             "%s: TIMEOUT\n", __func__);
2683                                         goto error;
2684                                 }
2685                         }
2686                 }
2687                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2688                 *data_ptr++ = s_value;
2689                 *data_ptr++ = r_value;
2690
2691                 s_value += s_stride;
2692         }
2693         *d_ptr = data_ptr;
2694         return QLA_SUCCESS;
2695
2696 error:
2697         return QLA_FUNCTION_FAILED;
2698 }
2699
2700 static void
2701 qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha,
2702         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2703 {
2704         uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2705         uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2706         struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr;
2707         uint32_t *data_ptr = *d_ptr;
2708
2709         rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr;
2710         sel_val1 = rdmux2_hdr->select_value_1;
2711         sel_val2 = rdmux2_hdr->select_value_2;
2712         sel_addr1 = rdmux2_hdr->select_addr_1;
2713         sel_addr2 = rdmux2_hdr->select_addr_2;
2714         sel_val_mask = rdmux2_hdr->select_value_mask;
2715         read_addr = rdmux2_hdr->read_addr;
2716
2717         for (i = 0; i < rdmux2_hdr->op_count; i++) {
2718                 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1);
2719                 t_sel_val = sel_val1 & sel_val_mask;
2720                 *data_ptr++ = t_sel_val;
2721
2722                 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2723                 qla8044_rd_reg_indirect(vha, read_addr, &data);
2724
2725                 *data_ptr++ = data;
2726
2727                 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2);
2728                 t_sel_val = sel_val2 & sel_val_mask;
2729                 *data_ptr++ = t_sel_val;
2730
2731                 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2732                 qla8044_rd_reg_indirect(vha, read_addr, &data);
2733
2734                 *data_ptr++ = data;
2735
2736                 sel_val1 += rdmux2_hdr->select_value_stride;
2737                 sel_val2 += rdmux2_hdr->select_value_stride;
2738         }
2739
2740         *d_ptr = data_ptr;
2741 }
2742
2743 static uint32_t
2744 qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha,
2745         struct qla8044_minidump_entry_hdr *entry_hdr,
2746         uint32_t **d_ptr)
2747 {
2748         uint32_t poll_wait, poll_mask, r_value, data;
2749         uint32_t addr_1, addr_2, value_1, value_2;
2750         struct qla8044_minidump_entry_pollrdmwr *poll_hdr;
2751         uint32_t *data_ptr = *d_ptr;
2752
2753         poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr;
2754         addr_1 = poll_hdr->addr_1;
2755         addr_2 = poll_hdr->addr_2;
2756         value_1 = poll_hdr->value_1;
2757         value_2 = poll_hdr->value_2;
2758         poll_mask = poll_hdr->poll_mask;
2759
2760         qla8044_wr_reg_indirect(vha, addr_1, value_1);
2761
2762         poll_wait = poll_hdr->poll_wait;
2763         while (1) {
2764                 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2765
2766                 if ((r_value & poll_mask) != 0) {
2767                         break;
2768                 } else {
2769                         usleep_range(1000, 1100);
2770                         if (--poll_wait == 0) {
2771                                 ql_log(ql_log_fatal, vha, 0xb0ff,
2772                                     "%s: TIMEOUT\n", __func__);
2773                                 goto error;
2774                         }
2775                 }
2776         }
2777
2778         qla8044_rd_reg_indirect(vha, addr_2, &data);
2779         data &= poll_hdr->modify_mask;
2780         qla8044_wr_reg_indirect(vha, addr_2, data);
2781         qla8044_wr_reg_indirect(vha, addr_1, value_2);
2782
2783         poll_wait = poll_hdr->poll_wait;
2784         while (1) {
2785                 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2786
2787                 if ((r_value & poll_mask) != 0) {
2788                         break;
2789                 } else {
2790                         usleep_range(1000, 1100);
2791                         if (--poll_wait == 0) {
2792                                 ql_log(ql_log_fatal, vha, 0xb100,
2793                                     "%s: TIMEOUT2\n", __func__);
2794                                 goto error;
2795                         }
2796                 }
2797         }
2798
2799         *data_ptr++ = addr_2;
2800         *data_ptr++ = data;
2801
2802         *d_ptr = data_ptr;
2803
2804         return QLA_SUCCESS;
2805
2806 error:
2807         return QLA_FUNCTION_FAILED;
2808 }
2809
2810 #define ISP8044_PEX_DMA_ENGINE_INDEX            8
2811 #define ISP8044_PEX_DMA_BASE_ADDRESS            0x77320000
2812 #define ISP8044_PEX_DMA_NUM_OFFSET              0x10000UL
2813 #define ISP8044_PEX_DMA_CMD_ADDR_LOW            0x0
2814 #define ISP8044_PEX_DMA_CMD_ADDR_HIGH           0x04
2815 #define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL       0x08
2816
2817 #define ISP8044_PEX_DMA_READ_SIZE       (16 * 1024)
2818 #define ISP8044_PEX_DMA_MAX_WAIT        (100 * 100) /* Max wait of 100 msecs */
2819
2820 static int
2821 qla8044_check_dma_engine_state(struct scsi_qla_host *vha)
2822 {
2823         struct qla_hw_data *ha = vha->hw;
2824         int rval = QLA_SUCCESS;
2825         uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2826         uint64_t dma_base_addr = 0;
2827         struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2828
2829         tmplt_hdr = ha->md_tmplt_hdr;
2830         dma_eng_num =
2831             tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2832         dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2833                 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2834
2835         /* Read the pex-dma's command-status-and-control register. */
2836         rval = qla8044_rd_reg_indirect(vha,
2837             (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2838             &cmd_sts_and_cntrl);
2839         if (rval)
2840                 return QLA_FUNCTION_FAILED;
2841
2842         /* Check if requested pex-dma engine is available. */
2843         if (cmd_sts_and_cntrl & BIT_31)
2844                 return QLA_SUCCESS;
2845
2846         return QLA_FUNCTION_FAILED;
2847 }
2848
2849 static int
2850 qla8044_start_pex_dma(struct scsi_qla_host *vha,
2851         struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr)
2852 {
2853         struct qla_hw_data *ha = vha->hw;
2854         int rval = QLA_SUCCESS, wait = 0;
2855         uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2856         uint64_t dma_base_addr = 0;
2857         struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2858
2859         tmplt_hdr = ha->md_tmplt_hdr;
2860         dma_eng_num =
2861             tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2862         dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2863                 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2864
2865         rval = qla8044_wr_reg_indirect(vha,
2866             dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW,
2867             m_hdr->desc_card_addr);
2868         if (rval)
2869                 goto error_exit;
2870
2871         rval = qla8044_wr_reg_indirect(vha,
2872             dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0);
2873         if (rval)
2874                 goto error_exit;
2875
2876         rval = qla8044_wr_reg_indirect(vha,
2877             dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL,
2878             m_hdr->start_dma_cmd);
2879         if (rval)
2880                 goto error_exit;
2881
2882         /* Wait for dma operation to complete. */
2883         for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) {
2884                 rval = qla8044_rd_reg_indirect(vha,
2885                     (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2886                     &cmd_sts_and_cntrl);
2887                 if (rval)
2888                         goto error_exit;
2889
2890                 if ((cmd_sts_and_cntrl & BIT_1) == 0)
2891                         break;
2892
2893                 udelay(10);
2894         }
2895
2896         /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2897         if (wait >= ISP8044_PEX_DMA_MAX_WAIT) {
2898                 rval = QLA_FUNCTION_FAILED;
2899                 goto error_exit;
2900         }
2901
2902 error_exit:
2903         return rval;
2904 }
2905
2906 static int
2907 qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha,
2908         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2909 {
2910         struct qla_hw_data *ha = vha->hw;
2911         int rval = QLA_SUCCESS;
2912         struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2913         uint32_t chunk_size, read_size;
2914         uint8_t *data_ptr = (uint8_t *)*d_ptr;
2915         void *rdmem_buffer = NULL;
2916         dma_addr_t rdmem_dma;
2917         struct qla8044_pex_dma_descriptor dma_desc;
2918
2919         rval = qla8044_check_dma_engine_state(vha);
2920         if (rval != QLA_SUCCESS) {
2921                 ql_dbg(ql_dbg_p3p, vha, 0xb147,
2922                     "DMA engine not available. Fallback to rdmem-read.\n");
2923                 return QLA_FUNCTION_FAILED;
2924         }
2925
2926         m_hdr = (void *)entry_hdr;
2927
2928         rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2929             ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL);
2930         if (!rdmem_buffer) {
2931                 ql_dbg(ql_dbg_p3p, vha, 0xb148,
2932                     "Unable to allocate rdmem dma buffer\n");
2933                 return QLA_FUNCTION_FAILED;
2934         }
2935
2936         /* Prepare pex-dma descriptor to be written to MS memory. */
2937         /* dma-desc-cmd layout:
2938          *              0-3: dma-desc-cmd 0-3
2939          *              4-7: pcid function number
2940          *              8-15: dma-desc-cmd 8-15
2941          * dma_bus_addr: dma buffer address
2942          * cmd.read_data_size: amount of data-chunk to be read.
2943          */
2944         dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2945         dma_desc.cmd.dma_desc_cmd |=
2946             ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2947
2948         dma_desc.dma_bus_addr = rdmem_dma;
2949         dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE;
2950         read_size = 0;
2951
2952         /*
2953          * Perform rdmem operation using pex-dma.
2954          * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE.
2955          */
2956         while (read_size < m_hdr->read_data_size) {
2957                 if (m_hdr->read_data_size - read_size <
2958                     ISP8044_PEX_DMA_READ_SIZE) {
2959                         chunk_size = (m_hdr->read_data_size - read_size);
2960                         dma_desc.cmd.read_data_size = chunk_size;
2961                 }
2962
2963                 dma_desc.src_addr = m_hdr->read_addr + read_size;
2964
2965                 /* Prepare: Write pex-dma descriptor to MS memory. */
2966                 rval = qla8044_ms_mem_write_128b(vha,
2967                     m_hdr->desc_card_addr, (uint32_t *)&dma_desc,
2968                     (sizeof(struct qla8044_pex_dma_descriptor)/16));
2969                 if (rval) {
2970                         ql_log(ql_log_warn, vha, 0xb14a,
2971                             "%s: Error writing rdmem-dma-init to MS !!!\n",
2972                             __func__);
2973                         goto error_exit;
2974                 }
2975                 ql_dbg(ql_dbg_p3p, vha, 0xb14b,
2976                     "%s: Dma-descriptor: Instruct for rdmem dma "
2977                     "(chunk_size 0x%x).\n", __func__, chunk_size);
2978
2979                 /* Execute: Start pex-dma operation. */
2980                 rval = qla8044_start_pex_dma(vha, m_hdr);
2981                 if (rval)
2982                         goto error_exit;
2983
2984                 memcpy(data_ptr, rdmem_buffer, chunk_size);
2985                 data_ptr += chunk_size;
2986                 read_size += chunk_size;
2987         }
2988
2989         *d_ptr = (uint32_t *)data_ptr;
2990
2991 error_exit:
2992         if (rdmem_buffer)
2993                 dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE,
2994                     rdmem_buffer, rdmem_dma);
2995
2996         return rval;
2997 }
2998
2999 static uint32_t
3000 qla8044_minidump_process_rddfe(struct scsi_qla_host *vha,
3001         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3002 {
3003         int loop_cnt;
3004         uint32_t addr1, addr2, value, data, temp, wrVal;
3005         uint8_t stride, stride2;
3006         uint16_t count;
3007         uint32_t poll, mask, modify_mask;
3008         uint32_t wait_count = 0;
3009         uint32_t *data_ptr = *d_ptr;
3010         struct qla8044_minidump_entry_rddfe *rddfe;
3011
3012         rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr;
3013
3014         addr1 = rddfe->addr_1;
3015         value = rddfe->value;
3016         stride = rddfe->stride;
3017         stride2 = rddfe->stride2;
3018         count = rddfe->count;
3019
3020         poll = rddfe->poll;
3021         mask = rddfe->mask;
3022         modify_mask = rddfe->modify_mask;
3023
3024         addr2 = addr1 + stride;
3025
3026         for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
3027                 qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value));
3028
3029                 wait_count = 0;
3030                 while (wait_count < poll) {
3031                         qla8044_rd_reg_indirect(vha, addr1, &temp);
3032                         if ((temp & mask) != 0)
3033                                 break;
3034                         wait_count++;
3035                 }
3036
3037                 if (wait_count == poll) {
3038                         ql_log(ql_log_warn, vha, 0xb153,
3039                             "%s: TIMEOUT\n", __func__);
3040                         goto error;
3041                 } else {
3042                         qla8044_rd_reg_indirect(vha, addr2, &temp);
3043                         temp = temp & modify_mask;
3044                         temp = (temp | ((loop_cnt << 16) | loop_cnt));
3045                         wrVal = ((temp << 16) | temp);
3046
3047                         qla8044_wr_reg_indirect(vha, addr2, wrVal);
3048                         qla8044_wr_reg_indirect(vha, addr1, value);
3049
3050                         wait_count = 0;
3051                         while (wait_count < poll) {
3052                                 qla8044_rd_reg_indirect(vha, addr1, &temp);
3053                                 if ((temp & mask) != 0)
3054                                         break;
3055                                 wait_count++;
3056                         }
3057                         if (wait_count == poll) {
3058                                 ql_log(ql_log_warn, vha, 0xb154,
3059                                     "%s: TIMEOUT\n", __func__);
3060                                 goto error;
3061                         }
3062
3063                         qla8044_wr_reg_indirect(vha, addr1,
3064                             ((0x40000000 | value) + stride2));
3065                         wait_count = 0;
3066                         while (wait_count < poll) {
3067                                 qla8044_rd_reg_indirect(vha, addr1, &temp);
3068                                 if ((temp & mask) != 0)
3069                                         break;
3070                                 wait_count++;
3071                         }
3072
3073                         if (wait_count == poll) {
3074                                 ql_log(ql_log_warn, vha, 0xb155,
3075                                     "%s: TIMEOUT\n", __func__);
3076                                 goto error;
3077                         }
3078
3079                         qla8044_rd_reg_indirect(vha, addr2, &data);
3080
3081                         *data_ptr++ = wrVal;
3082                         *data_ptr++ = data;
3083                 }
3084
3085         }
3086
3087         *d_ptr = data_ptr;
3088         return QLA_SUCCESS;
3089
3090 error:
3091         return -1;
3092
3093 }
3094
3095 static uint32_t
3096 qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha,
3097         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3098 {
3099         int ret = 0;
3100         uint32_t addr1, addr2, value1, value2, data, selVal;
3101         uint8_t stride1, stride2;
3102         uint32_t addr3, addr4, addr5, addr6, addr7;
3103         uint16_t count, loop_cnt;
3104         uint32_t mask;
3105         uint32_t *data_ptr = *d_ptr;
3106
3107         struct qla8044_minidump_entry_rdmdio *rdmdio;
3108
3109         rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr;
3110
3111         addr1 = rdmdio->addr_1;
3112         addr2 = rdmdio->addr_2;
3113         value1 = rdmdio->value_1;
3114         stride1 = rdmdio->stride_1;
3115         stride2 = rdmdio->stride_2;
3116         count = rdmdio->count;
3117
3118         mask = rdmdio->mask;
3119         value2 = rdmdio->value_2;
3120
3121         addr3 = addr1 + stride1;
3122
3123         for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
3124                 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3125                     addr3, mask);
3126                 if (ret == -1)
3127                         goto error;
3128
3129                 addr4 = addr2 - stride1;
3130                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4,
3131                     value2);
3132                 if (ret == -1)
3133                         goto error;
3134
3135                 addr5 = addr2 - (2 * stride1);
3136                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5,
3137                     value1);
3138                 if (ret == -1)
3139                         goto error;
3140
3141                 addr6 = addr2 - (3 * stride1);
3142                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask,
3143                     addr6, 0x2);
3144                 if (ret == -1)
3145                         goto error;
3146
3147                 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3148                     addr3, mask);
3149                 if (ret == -1)
3150                         goto error;
3151
3152                 addr7 = addr2 - (4 * stride1);
3153                 data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7);
3154                 if (data == -1)
3155                         goto error;
3156
3157                 selVal = (value2 << 18) | (value1 << 2) | 2;
3158
3159                 stride2 = rdmdio->stride_2;
3160                 *data_ptr++ = selVal;
3161                 *data_ptr++ = data;
3162
3163                 value1 = value1 + stride2;
3164                 *d_ptr = data_ptr;
3165         }
3166
3167         return 0;
3168
3169 error:
3170         return -1;
3171 }
3172
3173 static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha,
3174                 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3175 {
3176         uint32_t addr1, addr2, value1, value2, poll, r_value;
3177         uint32_t wait_count = 0;
3178         struct qla8044_minidump_entry_pollwr *pollwr_hdr;
3179
3180         pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
3181         addr1 = pollwr_hdr->addr_1;
3182         addr2 = pollwr_hdr->addr_2;
3183         value1 = pollwr_hdr->value_1;
3184         value2 = pollwr_hdr->value_2;
3185
3186         poll = pollwr_hdr->poll;
3187
3188         while (wait_count < poll) {
3189                 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3190
3191                 if ((r_value & poll) != 0)
3192                         break;
3193                 wait_count++;
3194         }
3195
3196         if (wait_count == poll) {
3197                 ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__);
3198                 goto error;
3199         }
3200
3201         qla8044_wr_reg_indirect(vha, addr2, value2);
3202         qla8044_wr_reg_indirect(vha, addr1, value1);
3203
3204         wait_count = 0;
3205         while (wait_count < poll) {
3206                 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3207
3208                 if ((r_value & poll) != 0)
3209                         break;
3210                 wait_count++;
3211         }
3212
3213         return QLA_SUCCESS;
3214
3215 error:
3216         return -1;
3217 }
3218
3219 /*
3220  *
3221  * qla8044_collect_md_data - Retrieve firmware minidump data.
3222  * @ha: pointer to adapter structure
3223  **/
3224 int
3225 qla8044_collect_md_data(struct scsi_qla_host *vha)
3226 {
3227         int num_entry_hdr = 0;
3228         struct qla8044_minidump_entry_hdr *entry_hdr;
3229         struct qla8044_minidump_template_hdr *tmplt_hdr;
3230         uint32_t *data_ptr;
3231         uint32_t data_collected = 0, f_capture_mask;
3232         int i, rval = QLA_FUNCTION_FAILED;
3233         uint64_t now;
3234         uint32_t timestamp, idc_control;
3235         struct qla_hw_data *ha = vha->hw;
3236
3237         if (!ha->md_dump) {
3238                 ql_log(ql_log_info, vha, 0xb101,
3239                     "%s(%ld) No buffer to dump\n",
3240                     __func__, vha->host_no);
3241                 return rval;
3242         }
3243
3244         if (ha->fw_dumped) {
3245                 ql_log(ql_log_warn, vha, 0xb10d,
3246                     "Firmware has been previously dumped (%p) "
3247                     "-- ignoring request.\n", ha->fw_dump);
3248                 goto md_failed;
3249         }
3250
3251         ha->fw_dumped = false;
3252
3253         if (!ha->md_tmplt_hdr || !ha->md_dump) {
3254                 ql_log(ql_log_warn, vha, 0xb10e,
3255                     "Memory not allocated for minidump capture\n");
3256                 goto md_failed;
3257         }
3258
3259         qla8044_idc_lock(ha);
3260         idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3261         if (idc_control & GRACEFUL_RESET_BIT1) {
3262                 ql_log(ql_log_warn, vha, 0xb112,
3263                     "Forced reset from application, "
3264                     "ignore minidump capture\n");
3265                 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
3266                     (idc_control & ~GRACEFUL_RESET_BIT1));
3267                 qla8044_idc_unlock(ha);
3268
3269                 goto md_failed;
3270         }
3271         qla8044_idc_unlock(ha);
3272
3273         if (qla82xx_validate_template_chksum(vha)) {
3274                 ql_log(ql_log_info, vha, 0xb109,
3275                     "Template checksum validation error\n");
3276                 goto md_failed;
3277         }
3278
3279         tmplt_hdr = (struct qla8044_minidump_template_hdr *)
3280                 ha->md_tmplt_hdr;
3281         data_ptr = (uint32_t *)((uint8_t *)ha->md_dump);
3282         num_entry_hdr = tmplt_hdr->num_of_entries;
3283
3284         ql_dbg(ql_dbg_p3p, vha, 0xb11a,
3285             "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
3286
3287         f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
3288
3289         /* Validate whether required debug level is set */
3290         if ((f_capture_mask & 0x3) != 0x3) {
3291                 ql_log(ql_log_warn, vha, 0xb10f,
3292                     "Minimum required capture mask[0x%x] level not set\n",
3293                     f_capture_mask);
3294
3295         }
3296         tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
3297         ql_log(ql_log_info, vha, 0xb102,
3298             "[%s]: starting data ptr: %p\n",
3299            __func__, data_ptr);
3300         ql_log(ql_log_info, vha, 0xb10b,
3301            "[%s]: no of entry headers in Template: 0x%x\n",
3302            __func__, num_entry_hdr);
3303         ql_log(ql_log_info, vha, 0xb10c,
3304             "[%s]: Total_data_size 0x%x, %d obtained\n",
3305            __func__, ha->md_dump_size, ha->md_dump_size);
3306
3307         /* Update current timestamp before taking dump */
3308         now = get_jiffies_64();
3309         timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3310         tmplt_hdr->driver_timestamp = timestamp;
3311
3312         entry_hdr = (struct qla8044_minidump_entry_hdr *)
3313                 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
3314         tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] =
3315             tmplt_hdr->ocm_window_reg[ha->portnum];
3316
3317         /* Walk through the entry headers - validate/perform required action */
3318         for (i = 0; i < num_entry_hdr; i++) {
3319                 if (data_collected > ha->md_dump_size) {
3320                         ql_log(ql_log_info, vha, 0xb103,
3321                             "Data collected: [0x%x], "
3322                             "Total Dump size: [0x%x]\n",
3323                             data_collected, ha->md_dump_size);
3324                         return rval;
3325                 }
3326
3327                 if (!(entry_hdr->d_ctrl.entry_capture_mask &
3328                       ql2xmdcapmask)) {
3329                         entry_hdr->d_ctrl.driver_flags |=
3330                             QLA82XX_DBG_SKIPPED_FLAG;
3331                         goto skip_nxt_entry;
3332                 }
3333
3334                 ql_dbg(ql_dbg_p3p, vha, 0xb104,
3335                     "Data collected: [0x%x], Dump size left:[0x%x]\n",
3336                     data_collected,
3337                     (ha->md_dump_size - data_collected));
3338
3339                 /* Decode the entry type and take required action to capture
3340                  * debug data
3341                  */
3342                 switch (entry_hdr->entry_type) {
3343                 case QLA82XX_RDEND:
3344                         qla8044_mark_entry_skipped(vha, entry_hdr, i);
3345                         break;
3346                 case QLA82XX_CNTRL:
3347                         rval = qla8044_minidump_process_control(vha,
3348                             entry_hdr);
3349                         if (rval != QLA_SUCCESS) {
3350                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3351                                 goto md_failed;
3352                         }
3353                         break;
3354                 case QLA82XX_RDCRB:
3355                         qla8044_minidump_process_rdcrb(vha,
3356                             entry_hdr, &data_ptr);
3357                         break;
3358                 case QLA82XX_RDMEM:
3359                         rval = qla8044_minidump_pex_dma_read(vha,
3360                             entry_hdr, &data_ptr);
3361                         if (rval != QLA_SUCCESS) {
3362                                 rval = qla8044_minidump_process_rdmem(vha,
3363                                     entry_hdr, &data_ptr);
3364                                 if (rval != QLA_SUCCESS) {
3365                                         qla8044_mark_entry_skipped(vha,
3366                                             entry_hdr, i);
3367                                         goto md_failed;
3368                                 }
3369                         }
3370                         break;
3371                 case QLA82XX_BOARD:
3372                 case QLA82XX_RDROM:
3373                         rval = qla8044_minidump_process_rdrom(vha,
3374                             entry_hdr, &data_ptr);
3375                         if (rval != QLA_SUCCESS) {
3376                                 qla8044_mark_entry_skipped(vha,
3377                                     entry_hdr, i);
3378                         }
3379                         break;
3380                 case QLA82XX_L2DTG:
3381                 case QLA82XX_L2ITG:
3382                 case QLA82XX_L2DAT:
3383                 case QLA82XX_L2INS:
3384                         rval = qla8044_minidump_process_l2tag(vha,
3385                             entry_hdr, &data_ptr);
3386                         if (rval != QLA_SUCCESS) {
3387                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3388                                 goto md_failed;
3389                         }
3390                         break;
3391                 case QLA8044_L1DTG:
3392                 case QLA8044_L1ITG:
3393                 case QLA82XX_L1DAT:
3394                 case QLA82XX_L1INS:
3395                         qla8044_minidump_process_l1cache(vha,
3396                             entry_hdr, &data_ptr);
3397                         break;
3398                 case QLA82XX_RDOCM:
3399                         qla8044_minidump_process_rdocm(vha,
3400                             entry_hdr, &data_ptr);
3401                         break;
3402                 case QLA82XX_RDMUX:
3403                         qla8044_minidump_process_rdmux(vha,
3404                             entry_hdr, &data_ptr);
3405                         break;
3406                 case QLA82XX_QUEUE:
3407                         qla8044_minidump_process_queue(vha,
3408                             entry_hdr, &data_ptr);
3409                         break;
3410                 case QLA8044_POLLRD:
3411                         rval = qla8044_minidump_process_pollrd(vha,
3412                             entry_hdr, &data_ptr);
3413                         if (rval != QLA_SUCCESS)
3414                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3415                         break;
3416                 case QLA8044_RDMUX2:
3417                         qla8044_minidump_process_rdmux2(vha,
3418                             entry_hdr, &data_ptr);
3419                         break;
3420                 case QLA8044_POLLRDMWR:
3421                         rval = qla8044_minidump_process_pollrdmwr(vha,
3422                             entry_hdr, &data_ptr);
3423                         if (rval != QLA_SUCCESS)
3424                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3425                         break;
3426                 case QLA8044_RDDFE:
3427                         rval = qla8044_minidump_process_rddfe(vha, entry_hdr,
3428                             &data_ptr);
3429                         if (rval != QLA_SUCCESS)
3430                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3431                         break;
3432                 case QLA8044_RDMDIO:
3433                         rval = qla8044_minidump_process_rdmdio(vha, entry_hdr,
3434                             &data_ptr);
3435                         if (rval != QLA_SUCCESS)
3436                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3437                         break;
3438                 case QLA8044_POLLWR:
3439                         rval = qla8044_minidump_process_pollwr(vha, entry_hdr,
3440                             &data_ptr);
3441                         if (rval != QLA_SUCCESS)
3442                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3443                         break;
3444                 case QLA82XX_RDNOP:
3445                 default:
3446                         qla8044_mark_entry_skipped(vha, entry_hdr, i);
3447                         break;
3448                 }
3449
3450                 data_collected = (uint8_t *)data_ptr -
3451                     (uint8_t *)((uint8_t *)ha->md_dump);
3452 skip_nxt_entry:
3453                 /*
3454                  * next entry in the template
3455                  */
3456                 entry_hdr = (struct qla8044_minidump_entry_hdr *)
3457                     (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
3458         }
3459
3460         if (data_collected != ha->md_dump_size) {
3461                 ql_log(ql_log_info, vha, 0xb105,
3462                     "Dump data mismatch: Data collected: "
3463                     "[0x%x], total_data_size:[0x%x]\n",
3464                     data_collected, ha->md_dump_size);
3465                 rval = QLA_FUNCTION_FAILED;
3466                 goto md_failed;
3467         }
3468
3469         ql_log(ql_log_info, vha, 0xb110,
3470             "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
3471             vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
3472         ha->fw_dumped = true;
3473         qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
3474
3475
3476         ql_log(ql_log_info, vha, 0xb106,
3477             "Leaving fn: %s Last entry: 0x%x\n",
3478             __func__, i);
3479 md_failed:
3480         return rval;
3481 }
3482
3483 void
3484 qla8044_get_minidump(struct scsi_qla_host *vha)
3485 {
3486         struct qla_hw_data *ha = vha->hw;
3487
3488         if (!qla8044_collect_md_data(vha)) {
3489                 ha->fw_dumped = true;
3490                 ha->prev_minidump_failed = 0;
3491         } else {
3492                 ql_log(ql_log_fatal, vha, 0xb0db,
3493                     "%s: Unable to collect minidump\n",
3494                     __func__);
3495                 ha->prev_minidump_failed = 1;
3496         }
3497 }
3498
3499 static int
3500 qla8044_poll_flash_status_reg(struct scsi_qla_host *vha)
3501 {
3502         uint32_t flash_status;
3503         int retries = QLA8044_FLASH_READ_RETRY_COUNT;
3504         int ret_val = QLA_SUCCESS;
3505
3506         while (retries--) {
3507                 ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS,
3508                     &flash_status);
3509                 if (ret_val) {
3510                         ql_log(ql_log_warn, vha, 0xb13c,
3511                             "%s: Failed to read FLASH_STATUS reg.\n",
3512                             __func__);
3513                         break;
3514                 }
3515                 if ((flash_status & QLA8044_FLASH_STATUS_READY) ==
3516                     QLA8044_FLASH_STATUS_READY)
3517                         break;
3518                 msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY);
3519         }
3520
3521         if (!retries)
3522                 ret_val = QLA_FUNCTION_FAILED;
3523
3524         return ret_val;
3525 }
3526
3527 static int
3528 qla8044_write_flash_status_reg(struct scsi_qla_host *vha,
3529                                uint32_t data)
3530 {
3531         int ret_val = QLA_SUCCESS;
3532         uint32_t cmd;
3533
3534         cmd = vha->hw->fdt_wrt_sts_reg_cmd;
3535
3536         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3537             QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd);
3538         if (ret_val) {
3539                 ql_log(ql_log_warn, vha, 0xb125,
3540                     "%s: Failed to write to FLASH_ADDR.\n", __func__);
3541                 goto exit_func;
3542         }
3543
3544         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data);
3545         if (ret_val) {
3546                 ql_log(ql_log_warn, vha, 0xb126,
3547                     "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3548                 goto exit_func;
3549         }
3550
3551         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3552             QLA8044_FLASH_SECOND_ERASE_MS_VAL);
3553         if (ret_val) {
3554                 ql_log(ql_log_warn, vha, 0xb127,
3555                     "%s: Failed to write to FLASH_CONTROL.\n", __func__);
3556                 goto exit_func;
3557         }
3558
3559         ret_val = qla8044_poll_flash_status_reg(vha);
3560         if (ret_val)
3561                 ql_log(ql_log_warn, vha, 0xb128,
3562                     "%s: Error polling flash status reg.\n", __func__);
3563
3564 exit_func:
3565         return ret_val;
3566 }
3567
3568 /*
3569  * This function assumes that the flash lock is held.
3570  */
3571 static int
3572 qla8044_unprotect_flash(scsi_qla_host_t *vha)
3573 {
3574         int ret_val;
3575         struct qla_hw_data *ha = vha->hw;
3576
3577         ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable);
3578         if (ret_val)
3579                 ql_log(ql_log_warn, vha, 0xb139,
3580                     "%s: Write flash status failed.\n", __func__);
3581
3582         return ret_val;
3583 }
3584
3585 /*
3586  * This function assumes that the flash lock is held.
3587  */
3588 static int
3589 qla8044_protect_flash(scsi_qla_host_t *vha)
3590 {
3591         int ret_val;
3592         struct qla_hw_data *ha = vha->hw;
3593
3594         ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable);
3595         if (ret_val)
3596                 ql_log(ql_log_warn, vha, 0xb13b,
3597                     "%s: Write flash status failed.\n", __func__);
3598
3599         return ret_val;
3600 }
3601
3602
3603 static int
3604 qla8044_erase_flash_sector(struct scsi_qla_host *vha,
3605                            uint32_t sector_start_addr)
3606 {
3607         uint32_t reversed_addr;
3608         int ret_val = QLA_SUCCESS;
3609
3610         ret_val = qla8044_poll_flash_status_reg(vha);
3611         if (ret_val) {
3612                 ql_log(ql_log_warn, vha, 0xb12e,
3613                     "%s: Poll flash status after erase failed..\n", __func__);
3614         }
3615
3616         reversed_addr = (((sector_start_addr & 0xFF) << 16) |
3617             (sector_start_addr & 0xFF00) |
3618             ((sector_start_addr & 0xFF0000) >> 16));
3619
3620         ret_val = qla8044_wr_reg_indirect(vha,
3621             QLA8044_FLASH_WRDATA, reversed_addr);
3622         if (ret_val) {
3623                 ql_log(ql_log_warn, vha, 0xb12f,
3624                     "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3625         }
3626         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3627            QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd);
3628         if (ret_val) {
3629                 ql_log(ql_log_warn, vha, 0xb130,
3630                     "%s: Failed to write to FLASH_ADDR.\n", __func__);
3631         }
3632         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3633             QLA8044_FLASH_LAST_ERASE_MS_VAL);
3634         if (ret_val) {
3635                 ql_log(ql_log_warn, vha, 0xb131,
3636                     "%s: Failed write to FLASH_CONTROL.\n", __func__);
3637         }
3638         ret_val = qla8044_poll_flash_status_reg(vha);
3639         if (ret_val) {
3640                 ql_log(ql_log_warn, vha, 0xb132,
3641                     "%s: Poll flash status failed.\n", __func__);
3642         }
3643
3644
3645         return ret_val;
3646 }
3647
3648 /*
3649  * qla8044_flash_write_u32 - Write data to flash
3650  *
3651  * @ha : Pointer to adapter structure
3652  * addr : Flash address to write to
3653  * p_data : Data to be written
3654  *
3655  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
3656  *
3657  * NOTE: Lock should be held on entry
3658  */
3659 static int
3660 qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr,
3661                         uint32_t *p_data)
3662 {
3663         int ret_val = QLA_SUCCESS;
3664
3665         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3666             0x00800000 | (addr >> 2));
3667         if (ret_val) {
3668                 ql_log(ql_log_warn, vha, 0xb134,
3669                     "%s: Failed write to FLASH_ADDR.\n", __func__);
3670                 goto exit_func;
3671         }
3672         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data);
3673         if (ret_val) {
3674                 ql_log(ql_log_warn, vha, 0xb135,
3675                     "%s: Failed write to FLASH_WRDATA.\n", __func__);
3676                 goto exit_func;
3677         }
3678         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D);
3679         if (ret_val) {
3680                 ql_log(ql_log_warn, vha, 0xb136,
3681                     "%s: Failed write to FLASH_CONTROL.\n", __func__);
3682                 goto exit_func;
3683         }
3684         ret_val = qla8044_poll_flash_status_reg(vha);
3685         if (ret_val) {
3686                 ql_log(ql_log_warn, vha, 0xb137,
3687                     "%s: Poll flash status failed.\n", __func__);
3688         }
3689
3690 exit_func:
3691         return ret_val;
3692 }
3693
3694 static int
3695 qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3696                                 uint32_t faddr, uint32_t dwords)
3697 {
3698         int ret = QLA_FUNCTION_FAILED;
3699         uint32_t spi_val;
3700
3701         if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS ||
3702             dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) {
3703                 ql_dbg(ql_dbg_user, vha, 0xb123,
3704                     "Got unsupported dwords = 0x%x.\n",
3705                     dwords);
3706                 return QLA_FUNCTION_FAILED;
3707         }
3708
3709         qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val);
3710         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3711             spi_val | QLA8044_FLASH_SPI_CTL);
3712         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3713             QLA8044_FLASH_FIRST_TEMP_VAL);
3714
3715         /* First DWORD write to FLASH_WRDATA */
3716         ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA,
3717             *dwptr++);
3718         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3719             QLA8044_FLASH_FIRST_MS_PATTERN);
3720
3721         ret = qla8044_poll_flash_status_reg(vha);
3722         if (ret) {
3723                 ql_log(ql_log_warn, vha, 0xb124,
3724                     "%s: Failed.\n", __func__);
3725                 goto exit_func;
3726         }
3727
3728         dwords--;
3729
3730         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3731             QLA8044_FLASH_SECOND_TEMP_VAL);
3732
3733
3734         /* Second to N-1 DWORDS writes */
3735         while (dwords != 1) {
3736                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3737                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3738                     QLA8044_FLASH_SECOND_MS_PATTERN);
3739                 ret = qla8044_poll_flash_status_reg(vha);
3740                 if (ret) {
3741                         ql_log(ql_log_warn, vha, 0xb129,
3742                             "%s: Failed.\n", __func__);
3743                         goto exit_func;
3744                 }
3745                 dwords--;
3746         }
3747
3748         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3749             QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2));
3750
3751         /* Last DWORD write */
3752         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3753         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3754             QLA8044_FLASH_LAST_MS_PATTERN);
3755         ret = qla8044_poll_flash_status_reg(vha);
3756         if (ret) {
3757                 ql_log(ql_log_warn, vha, 0xb12a,
3758                     "%s: Failed.\n", __func__);
3759                 goto exit_func;
3760         }
3761         qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val);
3762
3763         if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) {
3764                 ql_log(ql_log_warn, vha, 0xb12b,
3765                     "%s: Failed.\n", __func__);
3766                 spi_val = 0;
3767                 /* Operation failed, clear error bit. */
3768                 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3769                     &spi_val);
3770                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3771                     spi_val | QLA8044_FLASH_SPI_CTL);
3772         }
3773 exit_func:
3774         return ret;
3775 }
3776
3777 static int
3778 qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3779                                uint32_t faddr, uint32_t dwords)
3780 {
3781         int ret = QLA_FUNCTION_FAILED;
3782         uint32_t liter;
3783
3784         for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3785                 ret = qla8044_flash_write_u32(vha, faddr, dwptr);
3786                 if (ret) {
3787                         ql_dbg(ql_dbg_p3p, vha, 0xb141,
3788                             "%s: flash address=%x data=%x.\n", __func__,
3789                              faddr, *dwptr);
3790                         break;
3791                 }
3792         }
3793
3794         return ret;
3795 }
3796
3797 int
3798 qla8044_write_optrom_data(struct scsi_qla_host *vha, void *buf,
3799                           uint32_t offset, uint32_t length)
3800 {
3801         int rval = QLA_FUNCTION_FAILED, i, burst_iter_count;
3802         int dword_count, erase_sec_count;
3803         uint32_t erase_offset;
3804         uint8_t *p_cache, *p_src;
3805
3806         erase_offset = offset;
3807
3808         p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL);
3809         if (!p_cache)
3810                 return QLA_FUNCTION_FAILED;
3811
3812         memcpy(p_cache, buf, length);
3813         p_src = p_cache;
3814         dword_count = length / sizeof(uint32_t);
3815         /* Since the offset and legth are sector aligned, it will be always
3816          * multiple of burst_iter_count (64)
3817          */
3818         burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS;
3819         erase_sec_count = length / QLA8044_SECTOR_SIZE;
3820
3821         /* Suspend HBA. */
3822         scsi_block_requests(vha->host);
3823         /* Lock and enable write for whole operation. */
3824         qla8044_flash_lock(vha);
3825         qla8044_unprotect_flash(vha);
3826
3827         /* Erasing the sectors */
3828         for (i = 0; i < erase_sec_count; i++) {
3829                 rval = qla8044_erase_flash_sector(vha, erase_offset);
3830                 ql_dbg(ql_dbg_user, vha, 0xb138,
3831                     "Done erase of sector=0x%x.\n",
3832                     erase_offset);
3833                 if (rval) {
3834                         ql_log(ql_log_warn, vha, 0xb121,
3835                             "Failed to erase the sector having address: "
3836                             "0x%x.\n", erase_offset);
3837                         goto out;
3838                 }
3839                 erase_offset += QLA8044_SECTOR_SIZE;
3840         }
3841         ql_dbg(ql_dbg_user, vha, 0xb13f,
3842             "Got write for addr = 0x%x length=0x%x.\n",
3843             offset, length);
3844
3845         for (i = 0; i < burst_iter_count; i++) {
3846
3847                 /* Go with write. */
3848                 rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src,
3849                     offset, QLA8044_MAX_OPTROM_BURST_DWORDS);
3850                 if (rval) {
3851                         /* Buffer Mode failed skip to dword mode */
3852                         ql_log(ql_log_warn, vha, 0xb122,
3853                             "Failed to write flash in buffer mode, "
3854                             "Reverting to slow-write.\n");
3855                         rval = qla8044_write_flash_dword_mode(vha,
3856                             (uint32_t *)p_src, offset,
3857                             QLA8044_MAX_OPTROM_BURST_DWORDS);
3858                 }
3859                 p_src +=  sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3860                 offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3861         }
3862         ql_dbg(ql_dbg_user, vha, 0xb133,
3863             "Done writing.\n");
3864
3865 out:
3866         qla8044_protect_flash(vha);
3867         qla8044_flash_unlock(vha);
3868         scsi_unblock_requests(vha->host);
3869         kfree(p_cache);
3870
3871         return rval;
3872 }
3873
3874 #define LEG_INT_PTR_B31         (1 << 31)
3875 #define LEG_INT_PTR_B30         (1 << 30)
3876 #define PF_BITS_MASK            (0xF << 16)
3877 /**
3878  * qla8044_intr_handler() - Process interrupts for the ISP8044
3879  * @irq: interrupt number
3880  * @dev_id: SCSI driver HA context
3881  *
3882  * Called by system whenever the host adapter generates an interrupt.
3883  *
3884  * Returns handled flag.
3885  */
3886 irqreturn_t
3887 qla8044_intr_handler(int irq, void *dev_id)
3888 {
3889         scsi_qla_host_t *vha;
3890         struct qla_hw_data *ha;
3891         struct rsp_que *rsp;
3892         struct device_reg_82xx __iomem *reg;
3893         int             status = 0;
3894         unsigned long   flags;
3895         unsigned long   iter;
3896         uint32_t        stat;
3897         uint16_t        mb[8];
3898         uint32_t leg_int_ptr = 0, pf_bit;
3899
3900         rsp = (struct rsp_que *) dev_id;
3901         if (!rsp) {
3902                 ql_log(ql_log_info, NULL, 0xb143,
3903                     "%s(): NULL response queue pointer\n", __func__);
3904                 return IRQ_NONE;
3905         }
3906         ha = rsp->hw;
3907         vha = pci_get_drvdata(ha->pdev);
3908
3909         if (unlikely(pci_channel_offline(ha->pdev)))
3910                 return IRQ_HANDLED;
3911
3912         leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3913
3914         /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */
3915         if (!(leg_int_ptr & (LEG_INT_PTR_B31))) {
3916                 ql_dbg(ql_dbg_p3p, vha, 0xb144,
3917                     "%s: Legacy Interrupt Bit 31 not set, "
3918                     "spurious interrupt!\n", __func__);
3919                 return IRQ_NONE;
3920         }
3921
3922         pf_bit = ha->portnum << 16;
3923         /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */
3924         if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) {
3925                 ql_dbg(ql_dbg_p3p, vha, 0xb145,
3926                     "%s: Incorrect function ID 0x%x in "
3927                     "legacy interrupt register, "
3928                     "ha->pf_bit = 0x%x\n", __func__,
3929                     (leg_int_ptr & (PF_BITS_MASK)), pf_bit);
3930                 return IRQ_NONE;
3931         }
3932
3933         /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger
3934          * Control register and poll till Legacy Interrupt Pointer register
3935          * bit32 is 0.
3936          */
3937         qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0);
3938         do {
3939                 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3940                 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit)
3941                         break;
3942         } while (leg_int_ptr & (LEG_INT_PTR_B30));
3943
3944         reg = &ha->iobase->isp82;
3945         spin_lock_irqsave(&ha->hardware_lock, flags);
3946         for (iter = 1; iter--; ) {
3947
3948                 if (rd_reg_dword(&reg->host_int)) {
3949                         stat = rd_reg_dword(&reg->host_status);
3950                         if ((stat & HSRX_RISC_INT) == 0)
3951                                 break;
3952
3953                         switch (stat & 0xff) {
3954                         case 0x1:
3955                         case 0x2:
3956                         case 0x10:
3957                         case 0x11:
3958                                 qla82xx_mbx_completion(vha, MSW(stat));
3959                                 status |= MBX_INTERRUPT;
3960                                 break;
3961                         case 0x12:
3962                                 mb[0] = MSW(stat);
3963                                 mb[1] = rd_reg_word(&reg->mailbox_out[1]);
3964                                 mb[2] = rd_reg_word(&reg->mailbox_out[2]);
3965                                 mb[3] = rd_reg_word(&reg->mailbox_out[3]);
3966                                 qla2x00_async_event(vha, rsp, mb);
3967                                 break;
3968                         case 0x13:
3969                                 qla24xx_process_response_queue(vha, rsp);
3970                                 break;
3971                         default:
3972                                 ql_dbg(ql_dbg_p3p, vha, 0xb146,
3973                                     "Unrecognized interrupt type "
3974                                     "(%d).\n", stat & 0xff);
3975                                 break;
3976                         }
3977                 }
3978                 wrt_reg_dword(&reg->host_int, 0);
3979         }
3980
3981         qla2x00_handle_mbx_completion(ha, status);
3982         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3983
3984         return IRQ_HANDLED;
3985 }
3986
3987 static int
3988 qla8044_idc_dontreset(struct qla_hw_data *ha)
3989 {
3990         uint32_t idc_ctrl;
3991
3992         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3993         return idc_ctrl & DONTRESET_BIT0;
3994 }
3995
3996 static void
3997 qla8044_clear_rst_ready(scsi_qla_host_t *vha)
3998 {
3999         uint32_t drv_state;
4000
4001         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
4002
4003         /*
4004          * For ISP8044, drv_active register has 1 bit per function,
4005          * shift 1 by func_num to set a bit for the function.
4006          * For ISP82xx, drv_active has 4 bits per function
4007          */
4008         drv_state &= ~(1 << vha->hw->portnum);
4009
4010         ql_dbg(ql_dbg_p3p, vha, 0xb13d,
4011             "drv_state: 0x%08x\n", drv_state);
4012         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
4013 }
4014
4015 int
4016 qla8044_abort_isp(scsi_qla_host_t *vha)
4017 {
4018         int rval;
4019         uint32_t dev_state;
4020         struct qla_hw_data *ha = vha->hw;
4021
4022         qla8044_idc_lock(ha);
4023         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
4024
4025         if (ql2xdontresethba)
4026                 qla8044_set_idc_dontreset(vha);
4027
4028         /* If device_state is NEED_RESET, go ahead with
4029          * Reset,irrespective of ql2xdontresethba. This is to allow a
4030          * non-reset-owner to force a reset. Non-reset-owner sets
4031          * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset
4032          * and then forces a Reset by setting device_state to
4033          * NEED_RESET. */
4034         if (dev_state == QLA8XXX_DEV_READY) {
4035                 /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset
4036                  * recovery */
4037                 if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) {
4038                         ql_dbg(ql_dbg_p3p, vha, 0xb13e,
4039                             "Reset recovery disabled\n");
4040                         rval = QLA_FUNCTION_FAILED;
4041                         goto exit_isp_reset;
4042                 }
4043
4044                 ql_dbg(ql_dbg_p3p, vha, 0xb140,
4045                     "HW State: NEED RESET\n");
4046                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
4047                     QLA8XXX_DEV_NEED_RESET);
4048         }
4049
4050         /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority
4051          * and which drivers are present. Unlike ISP82XX, the function setting
4052          * NEED_RESET, may not be the Reset owner. */
4053         qla83xx_reset_ownership(vha);
4054
4055         qla8044_idc_unlock(ha);
4056         rval = qla8044_device_state_handler(vha);
4057         qla8044_idc_lock(ha);
4058         qla8044_clear_rst_ready(vha);
4059
4060 exit_isp_reset:
4061         qla8044_idc_unlock(ha);
4062         if (rval == QLA_SUCCESS) {
4063                 ha->flags.isp82xx_fw_hung = 0;
4064                 ha->flags.nic_core_reset_hdlr_active = 0;
4065                 rval = qla82xx_restart_isp(vha);
4066         }
4067
4068         return rval;
4069 }
4070
4071 void
4072 qla8044_fw_dump(scsi_qla_host_t *vha)
4073 {
4074         struct qla_hw_data *ha = vha->hw;
4075
4076         if (!ha->allow_cna_fw_dump)
4077                 return;
4078
4079         scsi_block_requests(vha->host);
4080         ha->flags.isp82xx_no_md_cap = 1;
4081         qla8044_idc_lock(ha);
4082         qla82xx_set_reset_owner(vha);
4083         qla8044_idc_unlock(ha);
4084         qla2x00_wait_for_chip_reset(vha);
4085         scsi_unblock_requests(vha->host);
4086 }