drivers/scsi/qla2xxx/qla

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This source file includes following definitions.
qla8044_rd_reg
qla8044_wr_reg
qla8044_rd_direct
qla8044_wr_direct
qla8044_set_win_base
qla8044_rd_reg_indirect
qla8044_wr_reg_indirect
qla8044_read_write_crb_reg
qla8044_poll_wait_for_ready
qla8044_ipmdio_rd_reg
qla8044_poll_wait_ipmdio_bus_idle
qla8044_ipmdio_wr_reg
qla8044_rmw_crb_reg
qla8044_set_qsnt_ready
qla8044_clear_qsnt_ready
qla8044_lock_recovery
qla8044_idc_lock
qla8044_idc_unlock
qla8044_flash_lock
qla8044_flash_unlock
qla8044_flash_lock_recovery
qla8044_read_flash_data
qla8044_read_optrom_data
qla8044_need_reset
qla8044_write_list
qla8044_read_write_list
qla8044_poll_reg
qla8044_poll_list
qla8044_poll_write_list
qla8044_read_modify_write
qla8044_pause
qla8044_template_end
qla8044_poll_read_list
qla8044_process_reset_template
qla8044_process_init_seq
qla8044_process_stop_seq
qla8044_process_start_seq
qla8044_lockless_flash_read_u32
qla8044_ms_mem_write_128b
qla8044_copy_bootloader
qla8044_restart
qla8044_check_cmd_peg_status
qla8044_start_firmware
qla8044_clear_drv_active
qla8044_device_bootstrap
qla8044_dump_reset_seq_hdr
qla8044_reset_seq_checksum_test
qla8044_read_reset_template
qla8044_set_idc_dontreset
qla8044_set_rst_ready
qla8044_need_reset_handler
qla8044_set_drv_active
qla8044_check_drv_active
qla8044_clear_idc_dontreset
qla8044_set_idc_ver
qla8044_update_idc_reg
qla8044_need_qsnt_handler
qla8044_device_state_handler
qla8044_check_temp
qla8044_read_temperature
qla8044_check_fw_alive
qla8044_watchdog
qla8044_minidump_process_control
qla8044_minidump_process_rdcrb
qla8044_minidump_process_rdmem
qla8044_minidump_process_rdrom
qla8044_mark_entry_skipped
qla8044_minidump_process_l2tag
qla8044_minidump_process_l1cache
qla8044_minidump_process_rdocm
qla8044_minidump_process_rdmux
qla8044_minidump_process_queue
qla8044_minidump_process_pollrd
qla8044_minidump_process_rdmux2
qla8044_minidump_process_pollrdmwr
qla8044_check_dma_engine_state
qla8044_start_pex_dma
qla8044_minidump_pex_dma_read
qla8044_minidump_process_rddfe
qla8044_minidump_process_rdmdio
qla8044_minidump_process_pollwr
qla8044_collect_md_data
qla8044_get_minidump
qla8044_poll_flash_status_reg
qla8044_write_flash_status_reg
qla8044_unprotect_flash
qla8044_protect_flash
qla8044_erase_flash_sector
qla8044_flash_write_u32
qla8044_write_flash_buffer_mode
qla8044_write_flash_dword_mode
qla8044_write_optrom_data
qla8044_intr_handler
qla8044_idc_dontreset
qla8044_clear_rst_ready
qla8044_abort_isp
qla8044_fw_dump
   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 
   8 #include <linux/vmalloc.h>
   9 #include <linux/delay.h>
  10 
  11 #include "qla_def.h"
  12 #include "qla_gbl.h"
  13 
  14 #define TIMEOUT_100_MS 100
  15 
  16 static const uint32_t qla8044_reg_tbl[] = {
  17         QLA8044_PEG_HALT_STATUS1,
  18         QLA8044_PEG_HALT_STATUS2,
  19         QLA8044_PEG_ALIVE_COUNTER,
  20         QLA8044_CRB_DRV_ACTIVE,
  21         QLA8044_CRB_DEV_STATE,
  22         QLA8044_CRB_DRV_STATE,
  23         QLA8044_CRB_DRV_SCRATCH,
  24         QLA8044_CRB_DEV_PART_INFO1,
  25         QLA8044_CRB_IDC_VER_MAJOR,
  26         QLA8044_FW_VER_MAJOR,
  27         QLA8044_FW_VER_MINOR,
  28         QLA8044_FW_VER_SUB,
  29         QLA8044_CMDPEG_STATE,
  30         QLA8044_ASIC_TEMP,
  31 };
  32 
  33 /* 8044 Flash Read/Write functions */
  34 uint32_t
  35 qla8044_rd_reg(struct qla_hw_data *ha, ulong addr)
  36 {
  37         return readl((void __iomem *) (ha->nx_pcibase + addr));
  38 }
  39 
  40 void
  41 qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val)
  42 {
  43         writel(val, (void __iomem *)((ha)->nx_pcibase + addr));
  44 }
  45 
  46 int
  47 qla8044_rd_direct(struct scsi_qla_host *vha,
  48         const uint32_t crb_reg)
  49 {
  50         struct qla_hw_data *ha = vha->hw;
  51 
  52         if (crb_reg < CRB_REG_INDEX_MAX)
  53                 return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]);
  54         else
  55                 return QLA_FUNCTION_FAILED;
  56 }
  57 
  58 void
  59 qla8044_wr_direct(struct scsi_qla_host *vha,
  60         const uint32_t crb_reg,
  61         const uint32_t value)
  62 {
  63         struct qla_hw_data *ha = vha->hw;
  64 
  65         if (crb_reg < CRB_REG_INDEX_MAX)
  66                 qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value);
  67 }
  68 
  69 static int
  70 qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr)
  71 {
  72         uint32_t val;
  73         int ret_val = QLA_SUCCESS;
  74         struct qla_hw_data *ha = vha->hw;
  75 
  76         qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr);
  77         val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum));
  78 
  79         if (val != addr) {
  80                 ql_log(ql_log_warn, vha, 0xb087,
  81                     "%s: Failed to set register window : "
  82                     "addr written 0x%x, read 0x%x!\n",
  83                     __func__, addr, val);
  84                 ret_val = QLA_FUNCTION_FAILED;
  85         }
  86         return ret_val;
  87 }
  88 
  89 static int
  90 qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
  91 {
  92         int ret_val = QLA_SUCCESS;
  93         struct qla_hw_data *ha = vha->hw;
  94 
  95         ret_val = qla8044_set_win_base(vha, addr);
  96         if (!ret_val)
  97                 *data = qla8044_rd_reg(ha, QLA8044_WILDCARD);
  98         else
  99                 ql_log(ql_log_warn, vha, 0xb088,
 100                     "%s: failed read of addr 0x%x!\n", __func__, addr);
 101         return ret_val;
 102 }
 103 
 104 static int
 105 qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
 106 {
 107         int ret_val = QLA_SUCCESS;
 108         struct qla_hw_data *ha = vha->hw;
 109 
 110         ret_val = qla8044_set_win_base(vha, addr);
 111         if (!ret_val)
 112                 qla8044_wr_reg(ha, QLA8044_WILDCARD, data);
 113         else
 114                 ql_log(ql_log_warn, vha, 0xb089,
 115                     "%s: failed wrt to addr 0x%x, data 0x%x\n",
 116                     __func__, addr, data);
 117         return ret_val;
 118 }
 119 
 120 /*
 121  * qla8044_read_write_crb_reg - Read from raddr and write value to waddr.
 122  *
 123  * @ha : Pointer to adapter structure
 124  * @raddr : CRB address to read from
 125  * @waddr : CRB address to write to
 126  *
 127  */
 128 static void
 129 qla8044_read_write_crb_reg(struct scsi_qla_host *vha,
 130         uint32_t raddr, uint32_t waddr)
 131 {
 132         uint32_t value;
 133 
 134         qla8044_rd_reg_indirect(vha, raddr, &value);
 135         qla8044_wr_reg_indirect(vha, waddr, value);
 136 }
 137 
 138 static int
 139 qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1,
 140         uint32_t mask)
 141 {
 142         unsigned long timeout;
 143         uint32_t temp;
 144 
 145         /* jiffies after 100ms */
 146         timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
 147         do {
 148                 qla8044_rd_reg_indirect(vha, addr1, &temp);
 149                 if ((temp & mask) != 0)
 150                         break;
 151                 if (time_after_eq(jiffies, timeout)) {
 152                         ql_log(ql_log_warn, vha, 0xb151,
 153                                 "Error in processing rdmdio entry\n");
 154                         return -1;
 155                 }
 156         } while (1);
 157 
 158         return 0;
 159 }
 160 
 161 static uint32_t
 162 qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha,
 163         uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr)
 164 {
 165         uint32_t temp;
 166         int ret = 0;
 167 
 168         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 169         if (ret == -1)
 170                 return -1;
 171 
 172         temp = (0x40000000 | addr);
 173         qla8044_wr_reg_indirect(vha, addr1, temp);
 174 
 175         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 176         if (ret == -1)
 177                 return 0;
 178 
 179         qla8044_rd_reg_indirect(vha, addr3, &ret);
 180 
 181         return ret;
 182 }
 183 
 184 
 185 static int
 186 qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha,
 187         uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask)
 188 {
 189         unsigned long timeout;
 190         uint32_t temp;
 191 
 192         /* jiffies after 100 msecs */
 193         timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
 194         do {
 195                 temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2);
 196                 if ((temp & 0x1) != 1)
 197                         break;
 198                 if (time_after_eq(jiffies, timeout)) {
 199                         ql_log(ql_log_warn, vha, 0xb152,
 200                             "Error in processing mdiobus idle\n");
 201                         return -1;
 202                 }
 203         } while (1);
 204 
 205         return 0;
 206 }
 207 
 208 static int
 209 qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1,
 210         uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value)
 211 {
 212         int ret = 0;
 213 
 214         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 215         if (ret == -1)
 216                 return -1;
 217 
 218         qla8044_wr_reg_indirect(vha, addr3, value);
 219         qla8044_wr_reg_indirect(vha, addr1, addr);
 220 
 221         ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
 222         if (ret == -1)
 223                 return -1;
 224 
 225         return 0;
 226 }
 227 /*
 228  * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask,
 229  * Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
 230  *
 231  * @vha : Pointer to adapter structure
 232  * @raddr : CRB address to read from
 233  * @waddr : CRB address to write to
 234  * @p_rmw_hdr : header with shift/or/xor values.
 235  *
 236  */
 237 static void
 238 qla8044_rmw_crb_reg(struct scsi_qla_host *vha,
 239         uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr)
 240 {
 241         uint32_t value;
 242 
 243         if (p_rmw_hdr->index_a)
 244                 value = vha->reset_tmplt.array[p_rmw_hdr->index_a];
 245         else
 246                 qla8044_rd_reg_indirect(vha, raddr, &value);
 247         value &= p_rmw_hdr->test_mask;
 248         value <<= p_rmw_hdr->shl;
 249         value >>= p_rmw_hdr->shr;
 250         value |= p_rmw_hdr->or_value;
 251         value ^= p_rmw_hdr->xor_value;
 252         qla8044_wr_reg_indirect(vha, waddr, value);
 253         return;
 254 }
 255 
 256 static inline void
 257 qla8044_set_qsnt_ready(struct scsi_qla_host *vha)
 258 {
 259         uint32_t qsnt_state;
 260         struct qla_hw_data *ha = vha->hw;
 261 
 262         qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 263         qsnt_state |= (1 << ha->portnum);
 264         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
 265         ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n",
 266              __func__, vha->host_no, qsnt_state);
 267 }
 268 
 269 void
 270 qla8044_clear_qsnt_ready(struct scsi_qla_host *vha)
 271 {
 272         uint32_t qsnt_state;
 273         struct qla_hw_data *ha = vha->hw;
 274 
 275         qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 276         qsnt_state &= ~(1 << ha->portnum);
 277         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
 278         ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n",
 279             __func__, vha->host_no, qsnt_state);
 280 }
 281 
 282 /**
 283  * qla8044_lock_recovery - Recovers the idc_lock.
 284  * @vha : Pointer to adapter structure
 285  *
 286  * Lock Recovery Register
 287  * 5-2  Lock recovery owner: Function ID of driver doing lock recovery,
 288  *      valid if bits 1..0 are set by driver doing lock recovery.
 289  * 1-0  1 - Driver intends to force unlock the IDC lock.
 290  *      2 - Driver is moving forward to unlock the IDC lock. Driver clears
 291  *          this field after force unlocking the IDC lock.
 292  *
 293  * Lock Recovery process
 294  * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is
 295  *    greater than 0, then wait for the other driver to unlock otherwise
 296  *    move to the next step.
 297  * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY
 298  *    register bits 1..0 and also set the function# in bits 5..2.
 299  * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms.
 300  *    Wait for the other driver to perform lock recovery if the function
 301  *    number in bits 5..2 has changed, otherwise move to the next step.
 302  * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0
 303  *    leaving your function# in bits 5..2.
 304  * e. Force unlock using the DRIVER_UNLOCK register and immediately clear
 305  *    the IDC_LOCK_RECOVERY bits 5..0 by writing 0.
 306  **/
 307 static int
 308 qla8044_lock_recovery(struct scsi_qla_host *vha)
 309 {
 310         uint32_t lock = 0, lockid;
 311         struct qla_hw_data *ha = vha->hw;
 312 
 313         lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
 314 
 315         /* Check for other Recovery in progress, go wait */
 316         if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0)
 317                 return QLA_FUNCTION_FAILED;
 318 
 319         /* Intent to Recover */
 320         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
 321             (ha->portnum <<
 322              IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER);
 323         msleep(200);
 324 
 325         /* Check Intent to Recover is advertised */
 326         lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
 327         if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum <<
 328             IDC_LOCK_RECOVERY_STATE_SHIFT_BITS))
 329                 return QLA_FUNCTION_FAILED;
 330 
 331         ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n"
 332             , __func__, ha->portnum);
 333 
 334         /* Proceed to Recover */
 335         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
 336             (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) |
 337             PROCEED_TO_RECOVER);
 338 
 339         /* Force Unlock() */
 340         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF);
 341         qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
 342 
 343         /* Clear bits 0-5 in IDC_RECOVERY register*/
 344         qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0);
 345 
 346         /* Get lock() */
 347         lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
 348         if (lock) {
 349                 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 350                 lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum;
 351                 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid);
 352                 return QLA_SUCCESS;
 353         } else
 354                 return QLA_FUNCTION_FAILED;
 355 }
 356 
 357 int
 358 qla8044_idc_lock(struct qla_hw_data *ha)
 359 {
 360         uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0;
 361         uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0;
 362         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 363 
 364         while (status == 0) {
 365                 /* acquire semaphore5 from PCI HW block */
 366                 status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
 367 
 368                 if (status) {
 369                         /* Increment Counter (8-31) and update func_num (0-7) on
 370                          * getting a successful lock  */
 371                         lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 372                         lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum;
 373                         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id);
 374                         break;
 375                 }
 376 
 377                 if (timeout == 0)
 378                         first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 379 
 380                 if (++timeout >=
 381                     (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) {
 382                         tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 383                         func_num = tmo_owner & 0xFF;
 384                         lock_cnt = tmo_owner >> 8;
 385                         ql_log(ql_log_warn, vha, 0xb114,
 386                             "%s: Lock by func %d failed after 2s, lock held "
 387                             "by func %d, lock count %d, first_owner %d\n",
 388                             __func__, ha->portnum, func_num, lock_cnt,
 389                             (first_owner & 0xFF));
 390                         if (first_owner != tmo_owner) {
 391                                 /* Some other driver got lock,
 392                                  * OR same driver got lock again (counter
 393                                  * value changed), when we were waiting for
 394                                  * lock. Retry for another 2 sec */
 395                                 ql_dbg(ql_dbg_p3p, vha, 0xb115,
 396                                     "%s: %d: IDC lock failed\n",
 397                                     __func__, ha->portnum);
 398                                 timeout = 0;
 399                         } else {
 400                                 /* Same driver holding lock > 2sec.
 401                                  * Force Recovery */
 402                                 if (qla8044_lock_recovery(vha) == QLA_SUCCESS) {
 403                                         /* Recovered and got lock */
 404                                         ret_val = QLA_SUCCESS;
 405                                         ql_dbg(ql_dbg_p3p, vha, 0xb116,
 406                                             "%s:IDC lock Recovery by %d"
 407                                             "successful...\n", __func__,
 408                                              ha->portnum);
 409                                 }
 410                                 /* Recovery Failed, some other function
 411                                  * has the lock, wait for 2secs
 412                                  * and retry
 413                                  */
 414                                 ql_dbg(ql_dbg_p3p, vha, 0xb08a,
 415                                        "%s: IDC lock Recovery by %d "
 416                                        "failed, Retrying timeout\n", __func__,
 417                                        ha->portnum);
 418                                 timeout = 0;
 419                         }
 420                 }
 421                 msleep(QLA8044_DRV_LOCK_MSLEEP);
 422         }
 423         return ret_val;
 424 }
 425 
 426 void
 427 qla8044_idc_unlock(struct qla_hw_data *ha)
 428 {
 429         int id;
 430         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 431 
 432         id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
 433 
 434         if ((id & 0xFF) != ha->portnum) {
 435                 ql_log(ql_log_warn, vha, 0xb118,
 436                     "%s: IDC Unlock by %d failed, lock owner is %d!\n",
 437                     __func__, ha->portnum, (id & 0xFF));
 438                 return;
 439         }
 440 
 441         /* Keep lock counter value, update the ha->func_num to 0xFF */
 442         qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF));
 443         qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
 444 }
 445 
 446 /* 8044 Flash Lock/Unlock functions */
 447 static int
 448 qla8044_flash_lock(scsi_qla_host_t *vha)
 449 {
 450         int lock_owner;
 451         int timeout = 0;
 452         uint32_t lock_status = 0;
 453         int ret_val = QLA_SUCCESS;
 454         struct qla_hw_data *ha = vha->hw;
 455 
 456         while (lock_status == 0) {
 457                 lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK);
 458                 if (lock_status)
 459                         break;
 460 
 461                 if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) {
 462                         lock_owner = qla8044_rd_reg(ha,
 463                             QLA8044_FLASH_LOCK_ID);
 464                         ql_log(ql_log_warn, vha, 0xb113,
 465                             "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
 466                             __func__, ha->portnum, lock_owner);
 467                         ret_val = QLA_FUNCTION_FAILED;
 468                         break;
 469                 }
 470                 msleep(20);
 471         }
 472         qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum);
 473         return ret_val;
 474 }
 475 
 476 static void
 477 qla8044_flash_unlock(scsi_qla_host_t *vha)
 478 {
 479         struct qla_hw_data *ha = vha->hw;
 480 
 481         /* Reading FLASH_UNLOCK register unlocks the Flash */
 482         qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
 483         qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
 484 }
 485 
 486 
 487 static
 488 void qla8044_flash_lock_recovery(struct scsi_qla_host *vha)
 489 {
 490 
 491         if (qla8044_flash_lock(vha)) {
 492                 /* Someone else is holding the lock. */
 493                 ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n");
 494         }
 495 
 496         /*
 497          * Either we got the lock, or someone
 498          * else died while holding it.
 499          * In either case, unlock.
 500          */
 501         qla8044_flash_unlock(vha);
 502 }
 503 
 504 /*
 505  * Address and length are byte address
 506  */
 507 static int
 508 qla8044_read_flash_data(scsi_qla_host_t *vha,  uint8_t *p_data,
 509         uint32_t flash_addr, int u32_word_count)
 510 {
 511         int i, ret_val = QLA_SUCCESS;
 512         uint32_t u32_word;
 513 
 514         if (qla8044_flash_lock(vha) != QLA_SUCCESS) {
 515                 ret_val = QLA_FUNCTION_FAILED;
 516                 goto exit_lock_error;
 517         }
 518 
 519         if (flash_addr & 0x03) {
 520                 ql_log(ql_log_warn, vha, 0xb117,
 521                     "%s: Illegal addr = 0x%x\n", __func__, flash_addr);
 522                 ret_val = QLA_FUNCTION_FAILED;
 523                 goto exit_flash_read;
 524         }
 525 
 526         for (i = 0; i < u32_word_count; i++) {
 527                 if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW,
 528                     (flash_addr & 0xFFFF0000))) {
 529                         ql_log(ql_log_warn, vha, 0xb119,
 530                             "%s: failed to write addr 0x%x to "
 531                             "FLASH_DIRECT_WINDOW\n! ",
 532                             __func__, flash_addr);
 533                         ret_val = QLA_FUNCTION_FAILED;
 534                         goto exit_flash_read;
 535                 }
 536 
 537                 ret_val = qla8044_rd_reg_indirect(vha,
 538                     QLA8044_FLASH_DIRECT_DATA(flash_addr),
 539                     &u32_word);
 540                 if (ret_val != QLA_SUCCESS) {
 541                         ql_log(ql_log_warn, vha, 0xb08c,
 542                             "%s: failed to read addr 0x%x!\n",
 543                             __func__, flash_addr);
 544                         goto exit_flash_read;
 545                 }
 546 
 547                 *(uint32_t *)p_data = u32_word;
 548                 p_data = p_data + 4;
 549                 flash_addr = flash_addr + 4;
 550         }
 551 
 552 exit_flash_read:
 553         qla8044_flash_unlock(vha);
 554 
 555 exit_lock_error:
 556         return ret_val;
 557 }
 558 
 559 /*
 560  * Address and length are byte address
 561  */
 562 void *
 563 qla8044_read_optrom_data(struct scsi_qla_host *vha, void *buf,
 564         uint32_t offset, uint32_t length)
 565 {
 566         scsi_block_requests(vha->host);
 567         if (qla8044_read_flash_data(vha, buf, offset, length / 4)
 568             != QLA_SUCCESS) {
 569                 ql_log(ql_log_warn, vha,  0xb08d,
 570                     "%s: Failed to read from flash\n",
 571                     __func__);
 572         }
 573         scsi_unblock_requests(vha->host);
 574         return buf;
 575 }
 576 
 577 static inline int
 578 qla8044_need_reset(struct scsi_qla_host *vha)
 579 {
 580         uint32_t drv_state, drv_active;
 581         int rval;
 582         struct qla_hw_data *ha = vha->hw;
 583 
 584         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
 585         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
 586 
 587         rval = drv_state & (1 << ha->portnum);
 588 
 589         if (ha->flags.eeh_busy && drv_active)
 590                 rval = 1;
 591         return rval;
 592 }
 593 
 594 /*
 595  * qla8044_write_list - Write the value (p_entry->arg2) to address specified
 596  * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between
 597  * entries.
 598  *
 599  * @vha : Pointer to adapter structure
 600  * @p_hdr : reset_entry header for WRITE_LIST opcode.
 601  *
 602  */
 603 static void
 604 qla8044_write_list(struct scsi_qla_host *vha,
 605         struct qla8044_reset_entry_hdr *p_hdr)
 606 {
 607         struct qla8044_entry *p_entry;
 608         uint32_t i;
 609 
 610         p_entry = (struct qla8044_entry *)((char *)p_hdr +
 611             sizeof(struct qla8044_reset_entry_hdr));
 612 
 613         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 614                 qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2);
 615                 if (p_hdr->delay)
 616                         udelay((uint32_t)(p_hdr->delay));
 617         }
 618 }
 619 
 620 /*
 621  * qla8044_read_write_list - Read from address specified by p_entry->arg1,
 622  * write value read to address specified by p_entry->arg2, for all entries in
 623  * header with delay of p_hdr->delay between entries.
 624  *
 625  * @vha : Pointer to adapter structure
 626  * @p_hdr : reset_entry header for READ_WRITE_LIST opcode.
 627  *
 628  */
 629 static void
 630 qla8044_read_write_list(struct scsi_qla_host *vha,
 631         struct qla8044_reset_entry_hdr *p_hdr)
 632 {
 633         struct qla8044_entry *p_entry;
 634         uint32_t i;
 635 
 636         p_entry = (struct qla8044_entry *)((char *)p_hdr +
 637             sizeof(struct qla8044_reset_entry_hdr));
 638 
 639         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 640                 qla8044_read_write_crb_reg(vha, p_entry->arg1,
 641                     p_entry->arg2);
 642                 if (p_hdr->delay)
 643                         udelay((uint32_t)(p_hdr->delay));
 644         }
 645 }
 646 
 647 /*
 648  * qla8044_poll_reg - Poll the given CRB addr for duration msecs till
 649  * value read ANDed with test_mask is equal to test_result.
 650  *
 651  * @ha : Pointer to adapter structure
 652  * @addr : CRB register address
 653  * @duration : Poll for total of "duration" msecs
 654  * @test_mask : Mask value read with "test_mask"
 655  * @test_result : Compare (value&test_mask) with test_result.
 656  *
 657  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
 658  */
 659 static int
 660 qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
 661         int duration, uint32_t test_mask, uint32_t test_result)
 662 {
 663         uint32_t value;
 664         int timeout_error;
 665         uint8_t retries;
 666         int ret_val = QLA_SUCCESS;
 667 
 668         ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
 669         if (ret_val == QLA_FUNCTION_FAILED) {
 670                 timeout_error = 1;
 671                 goto exit_poll_reg;
 672         }
 673 
 674         /* poll every 1/10 of the total duration */
 675         retries = duration/10;
 676 
 677         do {
 678                 if ((value & test_mask) != test_result) {
 679                         timeout_error = 1;
 680                         msleep(duration/10);
 681                         ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
 682                         if (ret_val == QLA_FUNCTION_FAILED) {
 683                                 timeout_error = 1;
 684                                 goto exit_poll_reg;
 685                         }
 686                 } else {
 687                         timeout_error = 0;
 688                         break;
 689                 }
 690         } while (retries--);
 691 
 692 exit_poll_reg:
 693         if (timeout_error) {
 694                 vha->reset_tmplt.seq_error++;
 695                 ql_log(ql_log_fatal, vha, 0xb090,
 696                     "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n",
 697                     __func__, value, test_mask, test_result);
 698         }
 699 
 700         return timeout_error;
 701 }
 702 
 703 /*
 704  * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB
 705  * register specified by p_entry->arg1 and compare (value AND test_mask) with
 706  * test_result to validate it. Wait for p_hdr->delay between processing entries.
 707  *
 708  * @ha : Pointer to adapter structure
 709  * @p_hdr : reset_entry header for POLL_LIST opcode.
 710  *
 711  */
 712 static void
 713 qla8044_poll_list(struct scsi_qla_host *vha,
 714         struct qla8044_reset_entry_hdr *p_hdr)
 715 {
 716         long delay;
 717         struct qla8044_entry *p_entry;
 718         struct qla8044_poll *p_poll;
 719         uint32_t i;
 720         uint32_t value;
 721 
 722         p_poll = (struct qla8044_poll *)
 723                 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
 724 
 725         /* Entries start after 8 byte qla8044_poll, poll header contains
 726          * the test_mask, test_value.
 727          */
 728         p_entry = (struct qla8044_entry *)((char *)p_poll +
 729             sizeof(struct qla8044_poll));
 730 
 731         delay = (long)p_hdr->delay;
 732 
 733         if (!delay) {
 734                 for (i = 0; i < p_hdr->count; i++, p_entry++)
 735                         qla8044_poll_reg(vha, p_entry->arg1,
 736                             delay, p_poll->test_mask, p_poll->test_value);
 737         } else {
 738                 for (i = 0; i < p_hdr->count; i++, p_entry++) {
 739                         if (delay) {
 740                                 if (qla8044_poll_reg(vha,
 741                                     p_entry->arg1, delay,
 742                                     p_poll->test_mask,
 743                                     p_poll->test_value)) {
 744                                         /*If
 745                                         * (data_read&test_mask != test_value)
 746                                         * read TIMEOUT_ADDR (arg1) and
 747                                         * ADDR (arg2) registers
 748                                         */
 749                                         qla8044_rd_reg_indirect(vha,
 750                                             p_entry->arg1, &value);
 751                                         qla8044_rd_reg_indirect(vha,
 752                                             p_entry->arg2, &value);
 753                                 }
 754                         }
 755                 }
 756         }
 757 }
 758 
 759 /*
 760  * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr,
 761  * read ar_addr, if (value& test_mask != test_mask) re-read till timeout
 762  * expires.
 763  *
 764  * @vha : Pointer to adapter structure
 765  * @p_hdr : reset entry header for POLL_WRITE_LIST opcode.
 766  *
 767  */
 768 static void
 769 qla8044_poll_write_list(struct scsi_qla_host *vha,
 770         struct qla8044_reset_entry_hdr *p_hdr)
 771 {
 772         long delay;
 773         struct qla8044_quad_entry *p_entry;
 774         struct qla8044_poll *p_poll;
 775         uint32_t i;
 776 
 777         p_poll = (struct qla8044_poll *)((char *)p_hdr +
 778             sizeof(struct qla8044_reset_entry_hdr));
 779 
 780         p_entry = (struct qla8044_quad_entry *)((char *)p_poll +
 781             sizeof(struct qla8044_poll));
 782 
 783         delay = (long)p_hdr->delay;
 784 
 785         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 786                 qla8044_wr_reg_indirect(vha,
 787                     p_entry->dr_addr, p_entry->dr_value);
 788                 qla8044_wr_reg_indirect(vha,
 789                     p_entry->ar_addr, p_entry->ar_value);
 790                 if (delay) {
 791                         if (qla8044_poll_reg(vha,
 792                             p_entry->ar_addr, delay,
 793                             p_poll->test_mask,
 794                             p_poll->test_value)) {
 795                                 ql_dbg(ql_dbg_p3p, vha, 0xb091,
 796                                     "%s: Timeout Error: poll list, ",
 797                                     __func__);
 798                                 ql_dbg(ql_dbg_p3p, vha, 0xb092,
 799                                     "item_num %d, entry_num %d\n", i,
 800                                     vha->reset_tmplt.seq_index);
 801                         }
 802                 }
 803         }
 804 }
 805 
 806 /*
 807  * qla8044_read_modify_write - Read value from p_entry->arg1, modify the
 808  * value, write value to p_entry->arg2. Process entries with p_hdr->delay
 809  * between entries.
 810  *
 811  * @vha : Pointer to adapter structure
 812  * @p_hdr : header with shift/or/xor values.
 813  *
 814  */
 815 static void
 816 qla8044_read_modify_write(struct scsi_qla_host *vha,
 817         struct qla8044_reset_entry_hdr *p_hdr)
 818 {
 819         struct qla8044_entry *p_entry;
 820         struct qla8044_rmw *p_rmw_hdr;
 821         uint32_t i;
 822 
 823         p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr +
 824             sizeof(struct qla8044_reset_entry_hdr));
 825 
 826         p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr +
 827             sizeof(struct qla8044_rmw));
 828 
 829         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 830                 qla8044_rmw_crb_reg(vha, p_entry->arg1,
 831                     p_entry->arg2, p_rmw_hdr);
 832                 if (p_hdr->delay)
 833                         udelay((uint32_t)(p_hdr->delay));
 834         }
 835 }
 836 
 837 /*
 838  * qla8044_pause - Wait for p_hdr->delay msecs, called between processing
 839  * two entries of a sequence.
 840  *
 841  * @vha : Pointer to adapter structure
 842  * @p_hdr : Common reset entry header.
 843  *
 844  */
 845 static
 846 void qla8044_pause(struct scsi_qla_host *vha,
 847         struct qla8044_reset_entry_hdr *p_hdr)
 848 {
 849         if (p_hdr->delay)
 850                 mdelay((uint32_t)((long)p_hdr->delay));
 851 }
 852 
 853 /*
 854  * qla8044_template_end - Indicates end of reset sequence processing.
 855  *
 856  * @vha : Pointer to adapter structure
 857  * @p_hdr : Common reset entry header.
 858  *
 859  */
 860 static void
 861 qla8044_template_end(struct scsi_qla_host *vha,
 862         struct qla8044_reset_entry_hdr *p_hdr)
 863 {
 864         vha->reset_tmplt.template_end = 1;
 865 
 866         if (vha->reset_tmplt.seq_error == 0) {
 867                 ql_dbg(ql_dbg_p3p, vha, 0xb093,
 868                     "%s: Reset sequence completed SUCCESSFULLY.\n", __func__);
 869         } else {
 870                 ql_log(ql_log_fatal, vha, 0xb094,
 871                     "%s: Reset sequence completed with some timeout "
 872                     "errors.\n", __func__);
 873         }
 874 }
 875 
 876 /*
 877  * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr,
 878  * if (value & test_mask != test_value) re-read till timeout value expires,
 879  * read dr_addr register and assign to reset_tmplt.array.
 880  *
 881  * @vha : Pointer to adapter structure
 882  * @p_hdr : Common reset entry header.
 883  *
 884  */
 885 static void
 886 qla8044_poll_read_list(struct scsi_qla_host *vha,
 887         struct qla8044_reset_entry_hdr *p_hdr)
 888 {
 889         long delay;
 890         int index;
 891         struct qla8044_quad_entry *p_entry;
 892         struct qla8044_poll *p_poll;
 893         uint32_t i;
 894         uint32_t value;
 895 
 896         p_poll = (struct qla8044_poll *)
 897                 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
 898 
 899         p_entry = (struct qla8044_quad_entry *)
 900                 ((char *)p_poll + sizeof(struct qla8044_poll));
 901 
 902         delay = (long)p_hdr->delay;
 903 
 904         for (i = 0; i < p_hdr->count; i++, p_entry++) {
 905                 qla8044_wr_reg_indirect(vha, p_entry->ar_addr,
 906                     p_entry->ar_value);
 907                 if (delay) {
 908                         if (qla8044_poll_reg(vha, p_entry->ar_addr, delay,
 909                             p_poll->test_mask, p_poll->test_value)) {
 910                                 ql_dbg(ql_dbg_p3p, vha, 0xb095,
 911                                     "%s: Timeout Error: poll "
 912                                     "list, ", __func__);
 913                                 ql_dbg(ql_dbg_p3p, vha, 0xb096,
 914                                     "Item_num %d, "
 915                                     "entry_num %d\n", i,
 916                                     vha->reset_tmplt.seq_index);
 917                         } else {
 918                                 index = vha->reset_tmplt.array_index;
 919                                 qla8044_rd_reg_indirect(vha,
 920                                     p_entry->dr_addr, &value);
 921                                 vha->reset_tmplt.array[index++] = value;
 922                                 if (index == QLA8044_MAX_RESET_SEQ_ENTRIES)
 923                                         vha->reset_tmplt.array_index = 1;
 924                         }
 925                 }
 926         }
 927 }
 928 
 929 /*
 930  * qla8031_process_reset_template - Process all entries in reset template
 931  * till entry with SEQ_END opcode, which indicates end of the reset template
 932  * processing. Each entry has a Reset Entry header, entry opcode/command, with
 933  * size of the entry, number of entries in sub-sequence and delay in microsecs
 934  * or timeout in millisecs.
 935  *
 936  * @ha : Pointer to adapter structure
 937  * @p_buff : Common reset entry header.
 938  *
 939  */
 940 static void
 941 qla8044_process_reset_template(struct scsi_qla_host *vha,
 942         char *p_buff)
 943 {
 944         int index, entries;
 945         struct qla8044_reset_entry_hdr *p_hdr;
 946         char *p_entry = p_buff;
 947 
 948         vha->reset_tmplt.seq_end = 0;
 949         vha->reset_tmplt.template_end = 0;
 950         entries = vha->reset_tmplt.hdr->entries;
 951         index = vha->reset_tmplt.seq_index;
 952 
 953         for (; (!vha->reset_tmplt.seq_end) && (index  < entries); index++) {
 954                 p_hdr = (struct qla8044_reset_entry_hdr *)p_entry;
 955                 switch (p_hdr->cmd) {
 956                 case OPCODE_NOP:
 957                         break;
 958                 case OPCODE_WRITE_LIST:
 959                         qla8044_write_list(vha, p_hdr);
 960                         break;
 961                 case OPCODE_READ_WRITE_LIST:
 962                         qla8044_read_write_list(vha, p_hdr);
 963                         break;
 964                 case OPCODE_POLL_LIST:
 965                         qla8044_poll_list(vha, p_hdr);
 966                         break;
 967                 case OPCODE_POLL_WRITE_LIST:
 968                         qla8044_poll_write_list(vha, p_hdr);
 969                         break;
 970                 case OPCODE_READ_MODIFY_WRITE:
 971                         qla8044_read_modify_write(vha, p_hdr);
 972                         break;
 973                 case OPCODE_SEQ_PAUSE:
 974                         qla8044_pause(vha, p_hdr);
 975                         break;
 976                 case OPCODE_SEQ_END:
 977                         vha->reset_tmplt.seq_end = 1;
 978                         break;
 979                 case OPCODE_TMPL_END:
 980                         qla8044_template_end(vha, p_hdr);
 981                         break;
 982                 case OPCODE_POLL_READ_LIST:
 983                         qla8044_poll_read_list(vha, p_hdr);
 984                         break;
 985                 default:
 986                         ql_log(ql_log_fatal, vha, 0xb097,
 987                             "%s: Unknown command ==> 0x%04x on "
 988                             "entry = %d\n", __func__, p_hdr->cmd, index);
 989                         break;
 990                 }
 991                 /*
 992                  *Set pointer to next entry in the sequence.
 993                 */
 994                 p_entry += p_hdr->size;
 995         }
 996         vha->reset_tmplt.seq_index = index;
 997 }
 998 
 999 static void
1000 qla8044_process_init_seq(struct scsi_qla_host *vha)
1001 {
1002         qla8044_process_reset_template(vha,
1003             vha->reset_tmplt.init_offset);
1004         if (vha->reset_tmplt.seq_end != 1)
1005                 ql_log(ql_log_fatal, vha, 0xb098,
1006                     "%s: Abrupt INIT Sub-Sequence end.\n",
1007                     __func__);
1008 }
1009 
1010 static void
1011 qla8044_process_stop_seq(struct scsi_qla_host *vha)
1012 {
1013         vha->reset_tmplt.seq_index = 0;
1014         qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset);
1015         if (vha->reset_tmplt.seq_end != 1)
1016                 ql_log(ql_log_fatal, vha, 0xb099,
1017                     "%s: Abrupt STOP Sub-Sequence end.\n", __func__);
1018 }
1019 
1020 static void
1021 qla8044_process_start_seq(struct scsi_qla_host *vha)
1022 {
1023         qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset);
1024         if (vha->reset_tmplt.template_end != 1)
1025                 ql_log(ql_log_fatal, vha, 0xb09a,
1026                     "%s: Abrupt START Sub-Sequence end.\n",
1027                     __func__);
1028 }
1029 
1030 static int
1031 qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha,
1032         uint32_t flash_addr, uint8_t *p_data, int u32_word_count)
1033 {
1034         uint32_t i;
1035         uint32_t u32_word;
1036         uint32_t flash_offset;
1037         uint32_t addr = flash_addr;
1038         int ret_val = QLA_SUCCESS;
1039 
1040         flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1);
1041 
1042         if (addr & 0x3) {
1043                 ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n",
1044                     __func__, addr);
1045                 ret_val = QLA_FUNCTION_FAILED;
1046                 goto exit_lockless_read;
1047         }
1048 
1049         ret_val = qla8044_wr_reg_indirect(vha,
1050             QLA8044_FLASH_DIRECT_WINDOW, (addr));
1051 
1052         if (ret_val != QLA_SUCCESS) {
1053                 ql_log(ql_log_fatal, vha, 0xb09c,
1054                     "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
1055                     __func__, addr);
1056                 goto exit_lockless_read;
1057         }
1058 
1059         /* Check if data is spread across multiple sectors  */
1060         if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
1061             (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1062                 /* Multi sector read */
1063                 for (i = 0; i < u32_word_count; i++) {
1064                         ret_val = qla8044_rd_reg_indirect(vha,
1065                             QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1066                         if (ret_val != QLA_SUCCESS) {
1067                                 ql_log(ql_log_fatal, vha, 0xb09d,
1068                                     "%s: failed to read addr 0x%x!\n",
1069                                     __func__, addr);
1070                                 goto exit_lockless_read;
1071                         }
1072                         *(uint32_t *)p_data  = u32_word;
1073                         p_data = p_data + 4;
1074                         addr = addr + 4;
1075                         flash_offset = flash_offset + 4;
1076                         if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1077                                 /* This write is needed once for each sector */
1078                                 ret_val = qla8044_wr_reg_indirect(vha,
1079                                     QLA8044_FLASH_DIRECT_WINDOW, (addr));
1080                                 if (ret_val != QLA_SUCCESS) {
1081                                         ql_log(ql_log_fatal, vha, 0xb09f,
1082                                             "%s: failed to write addr "
1083                                             "0x%x to FLASH_DIRECT_WINDOW!\n",
1084                                             __func__, addr);
1085                                         goto exit_lockless_read;
1086                                 }
1087                                 flash_offset = 0;
1088                         }
1089                 }
1090         } else {
1091                 /* Single sector read */
1092                 for (i = 0; i < u32_word_count; i++) {
1093                         ret_val = qla8044_rd_reg_indirect(vha,
1094                             QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1095                         if (ret_val != QLA_SUCCESS) {
1096                                 ql_log(ql_log_fatal, vha, 0xb0a0,
1097                                     "%s: failed to read addr 0x%x!\n",
1098                                     __func__, addr);
1099                                 goto exit_lockless_read;
1100                         }
1101                         *(uint32_t *)p_data = u32_word;
1102                         p_data = p_data + 4;
1103                         addr = addr + 4;
1104                 }
1105         }
1106 
1107 exit_lockless_read:
1108         return ret_val;
1109 }
1110 
1111 /*
1112  * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory
1113  *
1114  * @vha : Pointer to adapter structure
1115  * addr : Flash address to write to
1116  * data : Data to be written
1117  * count : word_count to be written
1118  *
1119  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1120  */
1121 static int
1122 qla8044_ms_mem_write_128b(struct scsi_qla_host *vha,
1123         uint64_t addr, uint32_t *data, uint32_t count)
1124 {
1125         int i, j, ret_val = QLA_SUCCESS;
1126         uint32_t agt_ctrl;
1127         unsigned long flags;
1128         struct qla_hw_data *ha = vha->hw;
1129 
1130         /* Only 128-bit aligned access */
1131         if (addr & 0xF) {
1132                 ret_val = QLA_FUNCTION_FAILED;
1133                 goto exit_ms_mem_write;
1134         }
1135         write_lock_irqsave(&ha->hw_lock, flags);
1136 
1137         /* Write address */
1138         ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1139         if (ret_val == QLA_FUNCTION_FAILED) {
1140                 ql_log(ql_log_fatal, vha, 0xb0a1,
1141                     "%s: write to AGT_ADDR_HI failed!\n", __func__);
1142                 goto exit_ms_mem_write_unlock;
1143         }
1144 
1145         for (i = 0; i < count; i++, addr += 16) {
1146                 if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
1147                     QLA8044_ADDR_QDR_NET_MAX)) ||
1148                     (addr_in_range(addr, QLA8044_ADDR_DDR_NET,
1149                         QLA8044_ADDR_DDR_NET_MAX)))) {
1150                         ret_val = QLA_FUNCTION_FAILED;
1151                         goto exit_ms_mem_write_unlock;
1152                 }
1153 
1154                 ret_val = qla8044_wr_reg_indirect(vha,
1155                     MD_MIU_TEST_AGT_ADDR_LO, addr);
1156 
1157                 /* Write data */
1158                 ret_val += qla8044_wr_reg_indirect(vha,
1159                     MD_MIU_TEST_AGT_WRDATA_LO, *data++);
1160                 ret_val += qla8044_wr_reg_indirect(vha,
1161                     MD_MIU_TEST_AGT_WRDATA_HI, *data++);
1162                 ret_val += qla8044_wr_reg_indirect(vha,
1163                     MD_MIU_TEST_AGT_WRDATA_ULO, *data++);
1164                 ret_val += qla8044_wr_reg_indirect(vha,
1165                     MD_MIU_TEST_AGT_WRDATA_UHI, *data++);
1166                 if (ret_val == QLA_FUNCTION_FAILED) {
1167                         ql_log(ql_log_fatal, vha, 0xb0a2,
1168                             "%s: write to AGT_WRDATA failed!\n",
1169                             __func__);
1170                         goto exit_ms_mem_write_unlock;
1171                 }
1172 
1173                 /* Check write status */
1174                 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1175                     MIU_TA_CTL_WRITE_ENABLE);
1176                 ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1177                     MIU_TA_CTL_WRITE_START);
1178                 if (ret_val == QLA_FUNCTION_FAILED) {
1179                         ql_log(ql_log_fatal, vha, 0xb0a3,
1180                             "%s: write to AGT_CTRL failed!\n", __func__);
1181                         goto exit_ms_mem_write_unlock;
1182                 }
1183 
1184                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1185                         ret_val = qla8044_rd_reg_indirect(vha,
1186                             MD_MIU_TEST_AGT_CTRL, &agt_ctrl);
1187                         if (ret_val == QLA_FUNCTION_FAILED) {
1188                                 ql_log(ql_log_fatal, vha, 0xb0a4,
1189                                     "%s: failed to read "
1190                                     "MD_MIU_TEST_AGT_CTRL!\n", __func__);
1191                                 goto exit_ms_mem_write_unlock;
1192                         }
1193                         if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1194                                 break;
1195                 }
1196 
1197                 /* Status check failed */
1198                 if (j >= MAX_CTL_CHECK) {
1199                         ql_log(ql_log_fatal, vha, 0xb0a5,
1200                             "%s: MS memory write failed!\n",
1201                            __func__);
1202                         ret_val = QLA_FUNCTION_FAILED;
1203                         goto exit_ms_mem_write_unlock;
1204                 }
1205         }
1206 
1207 exit_ms_mem_write_unlock:
1208         write_unlock_irqrestore(&ha->hw_lock, flags);
1209 
1210 exit_ms_mem_write:
1211         return ret_val;
1212 }
1213 
1214 static int
1215 qla8044_copy_bootloader(struct scsi_qla_host *vha)
1216 {
1217         uint8_t *p_cache;
1218         uint32_t src, count, size;
1219         uint64_t dest;
1220         int ret_val = QLA_SUCCESS;
1221         struct qla_hw_data *ha = vha->hw;
1222 
1223         src = QLA8044_BOOTLOADER_FLASH_ADDR;
1224         dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR);
1225         size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE);
1226 
1227         /* 128 bit alignment check */
1228         if (size & 0xF)
1229                 size = (size + 16) & ~0xF;
1230 
1231         /* 16 byte count */
1232         count = size/16;
1233 
1234         p_cache = vmalloc(size);
1235         if (p_cache == NULL) {
1236                 ql_log(ql_log_fatal, vha, 0xb0a6,
1237                     "%s: Failed to allocate memory for "
1238                     "boot loader cache\n", __func__);
1239                 ret_val = QLA_FUNCTION_FAILED;
1240                 goto exit_copy_bootloader;
1241         }
1242 
1243         ret_val = qla8044_lockless_flash_read_u32(vha, src,
1244             p_cache, size/sizeof(uint32_t));
1245         if (ret_val == QLA_FUNCTION_FAILED) {
1246                 ql_log(ql_log_fatal, vha, 0xb0a7,
1247                     "%s: Error reading F/W from flash!!!\n", __func__);
1248                 goto exit_copy_error;
1249         }
1250         ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n",
1251             __func__);
1252 
1253         /* 128 bit/16 byte write to MS memory */
1254         ret_val = qla8044_ms_mem_write_128b(vha, dest,
1255             (uint32_t *)p_cache, count);
1256         if (ret_val == QLA_FUNCTION_FAILED) {
1257                 ql_log(ql_log_fatal, vha, 0xb0a9,
1258                     "%s: Error writing F/W to MS !!!\n", __func__);
1259                 goto exit_copy_error;
1260         }
1261         ql_dbg(ql_dbg_p3p, vha, 0xb0aa,
1262             "%s: Wrote F/W (size %d) to MS !!!\n",
1263             __func__, size);
1264 
1265 exit_copy_error:
1266         vfree(p_cache);
1267 
1268 exit_copy_bootloader:
1269         return ret_val;
1270 }
1271 
1272 static int
1273 qla8044_restart(struct scsi_qla_host *vha)
1274 {
1275         int ret_val = QLA_SUCCESS;
1276         struct qla_hw_data *ha = vha->hw;
1277 
1278         qla8044_process_stop_seq(vha);
1279 
1280         /* Collect minidump */
1281         if (ql2xmdenable)
1282                 qla8044_get_minidump(vha);
1283         else
1284                 ql_log(ql_log_fatal, vha, 0xb14c,
1285                     "Minidump disabled.\n");
1286 
1287         qla8044_process_init_seq(vha);
1288 
1289         if (qla8044_copy_bootloader(vha)) {
1290                 ql_log(ql_log_fatal, vha, 0xb0ab,
1291                     "%s: Copy bootloader, firmware restart failed!\n",
1292                     __func__);
1293                 ret_val = QLA_FUNCTION_FAILED;
1294                 goto exit_restart;
1295         }
1296 
1297         /*
1298          *  Loads F/W from flash
1299          */
1300         qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH);
1301 
1302         qla8044_process_start_seq(vha);
1303 
1304 exit_restart:
1305         return ret_val;
1306 }
1307 
1308 /*
1309  * qla8044_check_cmd_peg_status - Check peg status to see if Peg is
1310  * initialized.
1311  *
1312  * @ha : Pointer to adapter structure
1313  *
1314  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1315  */
1316 static int
1317 qla8044_check_cmd_peg_status(struct scsi_qla_host *vha)
1318 {
1319         uint32_t val, ret_val = QLA_FUNCTION_FAILED;
1320         int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
1321         struct qla_hw_data *ha = vha->hw;
1322 
1323         do {
1324                 val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE);
1325                 if (val == PHAN_INITIALIZE_COMPLETE) {
1326                         ql_dbg(ql_dbg_p3p, vha, 0xb0ac,
1327                             "%s: Command Peg initialization "
1328                             "complete! state=0x%x\n", __func__, val);
1329                         ret_val = QLA_SUCCESS;
1330                         break;
1331                 }
1332                 msleep(CRB_CMDPEG_CHECK_DELAY);
1333         } while (--retries);
1334 
1335         return ret_val;
1336 }
1337 
1338 static int
1339 qla8044_start_firmware(struct scsi_qla_host *vha)
1340 {
1341         int ret_val = QLA_SUCCESS;
1342 
1343         if (qla8044_restart(vha)) {
1344                 ql_log(ql_log_fatal, vha, 0xb0ad,
1345                     "%s: Restart Error!!!, Need Reset!!!\n",
1346                     __func__);
1347                 ret_val = QLA_FUNCTION_FAILED;
1348                 goto exit_start_fw;
1349         } else
1350                 ql_dbg(ql_dbg_p3p, vha, 0xb0af,
1351                     "%s: Restart done!\n", __func__);
1352 
1353         ret_val = qla8044_check_cmd_peg_status(vha);
1354         if (ret_val) {
1355                 ql_log(ql_log_fatal, vha, 0xb0b0,
1356                     "%s: Peg not initialized!\n", __func__);
1357                 ret_val = QLA_FUNCTION_FAILED;
1358         }
1359 
1360 exit_start_fw:
1361         return ret_val;
1362 }
1363 
1364 void
1365 qla8044_clear_drv_active(struct qla_hw_data *ha)
1366 {
1367         uint32_t drv_active;
1368         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1369 
1370         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1371         drv_active &= ~(1 << (ha->portnum));
1372 
1373         ql_log(ql_log_info, vha, 0xb0b1,
1374             "%s(%ld): drv_active: 0x%08x\n",
1375             __func__, vha->host_no, drv_active);
1376 
1377         qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1378 }
1379 
1380 /*
1381  * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw
1382  * @ha: pointer to adapter structure
1383  *
1384  * Note: IDC lock must be held upon entry
1385  **/
1386 static int
1387 qla8044_device_bootstrap(struct scsi_qla_host *vha)
1388 {
1389         int rval = QLA_FUNCTION_FAILED;
1390         int i;
1391         uint32_t old_count = 0, count = 0;
1392         int need_reset = 0;
1393         uint32_t idc_ctrl;
1394         struct qla_hw_data *ha = vha->hw;
1395 
1396         need_reset = qla8044_need_reset(vha);
1397 
1398         if (!need_reset) {
1399                 old_count = qla8044_rd_direct(vha,
1400                     QLA8044_PEG_ALIVE_COUNTER_INDEX);
1401 
1402                 for (i = 0; i < 10; i++) {
1403                         msleep(200);
1404 
1405                         count = qla8044_rd_direct(vha,
1406                             QLA8044_PEG_ALIVE_COUNTER_INDEX);
1407                         if (count != old_count) {
1408                                 rval = QLA_SUCCESS;
1409                                 goto dev_ready;
1410                         }
1411                 }
1412                 qla8044_flash_lock_recovery(vha);
1413         } else {
1414                 /* We are trying to perform a recovery here. */
1415                 if (ha->flags.isp82xx_fw_hung)
1416                         qla8044_flash_lock_recovery(vha);
1417         }
1418 
1419         /* set to DEV_INITIALIZING */
1420         ql_log(ql_log_info, vha, 0xb0b2,
1421             "%s: HW State: INITIALIZING\n", __func__);
1422         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1423             QLA8XXX_DEV_INITIALIZING);
1424 
1425         qla8044_idc_unlock(ha);
1426         rval = qla8044_start_firmware(vha);
1427         qla8044_idc_lock(ha);
1428 
1429         if (rval != QLA_SUCCESS) {
1430                 ql_log(ql_log_info, vha, 0xb0b3,
1431                      "%s: HW State: FAILED\n", __func__);
1432                 qla8044_clear_drv_active(ha);
1433                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1434                     QLA8XXX_DEV_FAILED);
1435                 return rval;
1436         }
1437 
1438         /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after
1439          * device goes to INIT state. */
1440         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1441         if (idc_ctrl & GRACEFUL_RESET_BIT1) {
1442                 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
1443                     (idc_ctrl & ~GRACEFUL_RESET_BIT1));
1444                 ha->fw_dumped = 0;
1445         }
1446 
1447 dev_ready:
1448         ql_log(ql_log_info, vha, 0xb0b4,
1449             "%s: HW State: READY\n", __func__);
1450         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY);
1451 
1452         return rval;
1453 }
1454 
1455 /*-------------------------Reset Sequence Functions-----------------------*/
1456 static void
1457 qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha)
1458 {
1459         u8 *phdr;
1460 
1461         if (!vha->reset_tmplt.buff) {
1462                 ql_log(ql_log_fatal, vha, 0xb0b5,
1463                     "%s: Error Invalid reset_seq_template\n", __func__);
1464                 return;
1465         }
1466 
1467         phdr = vha->reset_tmplt.buff;
1468         ql_dbg(ql_dbg_p3p, vha, 0xb0b6,
1469             "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X"
1470             "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
1471             "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n",
1472             *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
1473             *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
1474             *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
1475             *(phdr+13), *(phdr+14), *(phdr+15));
1476 }
1477 
1478 /*
1479  * qla8044_reset_seq_checksum_test - Validate Reset Sequence template.
1480  *
1481  * @ha : Pointer to adapter structure
1482  *
1483  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1484  */
1485 static int
1486 qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha)
1487 {
1488         uint32_t sum =  0;
1489         uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff;
1490         int u16_count =  vha->reset_tmplt.hdr->size / sizeof(uint16_t);
1491 
1492         while (u16_count-- > 0)
1493                 sum += *buff++;
1494 
1495         while (sum >> 16)
1496                 sum = (sum & 0xFFFF) +  (sum >> 16);
1497 
1498         /* checksum of 0 indicates a valid template */
1499         if (~sum) {
1500                 return QLA_SUCCESS;
1501         } else {
1502                 ql_log(ql_log_fatal, vha, 0xb0b7,
1503                     "%s: Reset seq checksum failed\n", __func__);
1504                 return QLA_FUNCTION_FAILED;
1505         }
1506 }
1507 
1508 /*
1509  * qla8044_read_reset_template - Read Reset Template from Flash, validate
1510  * the template and store offsets of stop/start/init offsets in ha->reset_tmplt.
1511  *
1512  * @ha : Pointer to adapter structure
1513  */
1514 void
1515 qla8044_read_reset_template(struct scsi_qla_host *vha)
1516 {
1517         uint8_t *p_buff;
1518         uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
1519 
1520         vha->reset_tmplt.seq_error = 0;
1521         vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE);
1522         if (vha->reset_tmplt.buff == NULL) {
1523                 ql_log(ql_log_fatal, vha, 0xb0b8,
1524                     "%s: Failed to allocate reset template resources\n",
1525                     __func__);
1526                 goto exit_read_reset_template;
1527         }
1528 
1529         p_buff = vha->reset_tmplt.buff;
1530         addr = QLA8044_RESET_TEMPLATE_ADDR;
1531 
1532         tmplt_hdr_def_size =
1533             sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t);
1534 
1535         ql_dbg(ql_dbg_p3p, vha, 0xb0b9,
1536             "%s: Read template hdr size %d from Flash\n",
1537             __func__, tmplt_hdr_def_size);
1538 
1539         /* Copy template header from flash */
1540         if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1541                 ql_log(ql_log_fatal, vha, 0xb0ba,
1542                     "%s: Failed to read reset template\n", __func__);
1543                 goto exit_read_template_error;
1544         }
1545 
1546         vha->reset_tmplt.hdr =
1547          (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff;
1548 
1549         /* Validate the template header size and signature */
1550         tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
1551         if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
1552             (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
1553                 ql_log(ql_log_fatal, vha, 0xb0bb,
1554                     "%s: Template Header size invalid %d "
1555                     "tmplt_hdr_def_size %d!!!\n", __func__,
1556                     tmplt_hdr_size, tmplt_hdr_def_size);
1557                 goto exit_read_template_error;
1558         }
1559 
1560         addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size;
1561         p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size;
1562         tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size -
1563             vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t);
1564 
1565         ql_dbg(ql_dbg_p3p, vha, 0xb0bc,
1566             "%s: Read rest of the template size %d\n",
1567             __func__, vha->reset_tmplt.hdr->size);
1568 
1569         /* Copy rest of the template */
1570         if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1571                 ql_log(ql_log_fatal, vha, 0xb0bd,
1572                     "%s: Failed to read reset template\n", __func__);
1573                 goto exit_read_template_error;
1574         }
1575 
1576         /* Integrity check */
1577         if (qla8044_reset_seq_checksum_test(vha)) {
1578                 ql_log(ql_log_fatal, vha, 0xb0be,
1579                     "%s: Reset Seq checksum failed!\n", __func__);
1580                 goto exit_read_template_error;
1581         }
1582 
1583         ql_dbg(ql_dbg_p3p, vha, 0xb0bf,
1584             "%s: Reset Seq checksum passed! Get stop, "
1585             "start and init seq offsets\n", __func__);
1586 
1587         /* Get STOP, START, INIT sequence offsets */
1588         vha->reset_tmplt.init_offset = vha->reset_tmplt.buff +
1589             vha->reset_tmplt.hdr->init_seq_offset;
1590 
1591         vha->reset_tmplt.start_offset = vha->reset_tmplt.buff +
1592             vha->reset_tmplt.hdr->start_seq_offset;
1593 
1594         vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff +
1595             vha->reset_tmplt.hdr->hdr_size;
1596 
1597         qla8044_dump_reset_seq_hdr(vha);
1598 
1599         goto exit_read_reset_template;
1600 
1601 exit_read_template_error:
1602         vfree(vha->reset_tmplt.buff);
1603 
1604 exit_read_reset_template:
1605         return;
1606 }
1607 
1608 void
1609 qla8044_set_idc_dontreset(struct scsi_qla_host *vha)
1610 {
1611         uint32_t idc_ctrl;
1612         struct qla_hw_data *ha = vha->hw;
1613 
1614         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1615         idc_ctrl |= DONTRESET_BIT0;
1616         ql_dbg(ql_dbg_p3p, vha, 0xb0c0,
1617             "%s: idc_ctrl = %d\n", __func__, idc_ctrl);
1618         qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1619 }
1620 
1621 static inline void
1622 qla8044_set_rst_ready(struct scsi_qla_host *vha)
1623 {
1624         uint32_t drv_state;
1625         struct qla_hw_data *ha = vha->hw;
1626 
1627         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1628 
1629         /* For ISP8044, drv_active register has 1 bit per function,
1630          * shift 1 by func_num to set a bit for the function.*/
1631         drv_state |= (1 << ha->portnum);
1632 
1633         ql_log(ql_log_info, vha, 0xb0c1,
1634             "%s(%ld): drv_state: 0x%08x\n",
1635             __func__, vha->host_no, drv_state);
1636         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
1637 }
1638 
1639 /**
1640  * qla8044_need_reset_handler - Code to start reset sequence
1641  * @vha: pointer to adapter structure
1642  *
1643  * Note: IDC lock must be held upon entry
1644  */
1645 static void
1646 qla8044_need_reset_handler(struct scsi_qla_host *vha)
1647 {
1648         uint32_t dev_state = 0, drv_state, drv_active;
1649         unsigned long reset_timeout;
1650         struct qla_hw_data *ha = vha->hw;
1651 
1652         ql_log(ql_log_fatal, vha, 0xb0c2,
1653             "%s: Performing ISP error recovery\n", __func__);
1654 
1655         if (vha->flags.online) {
1656                 qla8044_idc_unlock(ha);
1657                 qla2x00_abort_isp_cleanup(vha);
1658                 ha->isp_ops->get_flash_version(vha, vha->req->ring);
1659                 ha->isp_ops->nvram_config(vha);
1660                 qla8044_idc_lock(ha);
1661         }
1662 
1663         dev_state = qla8044_rd_direct(vha,
1664             QLA8044_CRB_DEV_STATE_INDEX);
1665         drv_state = qla8044_rd_direct(vha,
1666             QLA8044_CRB_DRV_STATE_INDEX);
1667         drv_active = qla8044_rd_direct(vha,
1668             QLA8044_CRB_DRV_ACTIVE_INDEX);
1669 
1670         ql_log(ql_log_info, vha, 0xb0c5,
1671             "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
1672             __func__, vha->host_no, drv_state, drv_active, dev_state);
1673 
1674         qla8044_set_rst_ready(vha);
1675 
1676         /* wait for 10 seconds for reset ack from all functions */
1677         reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
1678 
1679         do {
1680                 if (time_after_eq(jiffies, reset_timeout)) {
1681                         ql_log(ql_log_info, vha, 0xb0c4,
1682                             "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
1683                             __func__, ha->portnum, drv_state, drv_active);
1684                         break;
1685                 }
1686 
1687                 qla8044_idc_unlock(ha);
1688                 msleep(1000);
1689                 qla8044_idc_lock(ha);
1690 
1691                 dev_state = qla8044_rd_direct(vha,
1692                     QLA8044_CRB_DEV_STATE_INDEX);
1693                 drv_state = qla8044_rd_direct(vha,
1694                     QLA8044_CRB_DRV_STATE_INDEX);
1695                 drv_active = qla8044_rd_direct(vha,
1696                     QLA8044_CRB_DRV_ACTIVE_INDEX);
1697         } while (((drv_state & drv_active) != drv_active) &&
1698             (dev_state == QLA8XXX_DEV_NEED_RESET));
1699 
1700         /* Remove IDC participation of functions not acknowledging */
1701         if (drv_state != drv_active) {
1702                 ql_log(ql_log_info, vha, 0xb0c7,
1703                     "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
1704                     __func__, vha->host_no, ha->portnum,
1705                     (drv_active ^ drv_state));
1706                 drv_active = drv_active & drv_state;
1707                 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
1708                     drv_active);
1709         } else {
1710                 /*
1711                  * Reset owner should execute reset recovery,
1712                  * if all functions acknowledged
1713                  */
1714                 if ((ha->flags.nic_core_reset_owner) &&
1715                     (dev_state == QLA8XXX_DEV_NEED_RESET)) {
1716                         ha->flags.nic_core_reset_owner = 0;
1717                         qla8044_device_bootstrap(vha);
1718                         return;
1719                 }
1720         }
1721 
1722         /* Exit if non active function */
1723         if (!(drv_active & (1 << ha->portnum))) {
1724                 ha->flags.nic_core_reset_owner = 0;
1725                 return;
1726         }
1727 
1728         /*
1729          * Execute Reset Recovery if Reset Owner or Function 7
1730          * is the only active function
1731          */
1732         if (ha->flags.nic_core_reset_owner ||
1733             ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
1734                 ha->flags.nic_core_reset_owner = 0;
1735                 qla8044_device_bootstrap(vha);
1736         }
1737 }
1738 
1739 static void
1740 qla8044_set_drv_active(struct scsi_qla_host *vha)
1741 {
1742         uint32_t drv_active;
1743         struct qla_hw_data *ha = vha->hw;
1744 
1745         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1746 
1747         /* For ISP8044, drv_active register has 1 bit per function,
1748          * shift 1 by func_num to set a bit for the function.*/
1749         drv_active |= (1 << ha->portnum);
1750 
1751         ql_log(ql_log_info, vha, 0xb0c8,
1752             "%s(%ld): drv_active: 0x%08x\n",
1753             __func__, vha->host_no, drv_active);
1754         qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1755 }
1756 
1757 static int
1758 qla8044_check_drv_active(struct scsi_qla_host *vha)
1759 {
1760         uint32_t drv_active;
1761         struct qla_hw_data *ha = vha->hw;
1762 
1763         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1764         if (drv_active & (1 << ha->portnum))
1765                 return QLA_SUCCESS;
1766         else
1767                 return QLA_TEST_FAILED;
1768 }
1769 
1770 static void
1771 qla8044_clear_idc_dontreset(struct scsi_qla_host *vha)
1772 {
1773         uint32_t idc_ctrl;
1774         struct qla_hw_data *ha = vha->hw;
1775 
1776         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1777         idc_ctrl &= ~DONTRESET_BIT0;
1778         ql_log(ql_log_info, vha, 0xb0c9,
1779             "%s: idc_ctrl = %d\n", __func__,
1780             idc_ctrl);
1781         qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1782 }
1783 
1784 static int
1785 qla8044_set_idc_ver(struct scsi_qla_host *vha)
1786 {
1787         int idc_ver;
1788         uint32_t drv_active;
1789         int rval = QLA_SUCCESS;
1790         struct qla_hw_data *ha = vha->hw;
1791 
1792         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1793         if (drv_active == (1 << ha->portnum)) {
1794                 idc_ver = qla8044_rd_direct(vha,
1795                     QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1796                 idc_ver &= (~0xFF);
1797                 idc_ver |= QLA8044_IDC_VER_MAJ_VALUE;
1798                 qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX,
1799                     idc_ver);
1800                 ql_log(ql_log_info, vha, 0xb0ca,
1801                     "%s: IDC version updated to %d\n",
1802                     __func__, idc_ver);
1803         } else {
1804                 idc_ver = qla8044_rd_direct(vha,
1805                     QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1806                 idc_ver &= 0xFF;
1807                 if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) {
1808                         ql_log(ql_log_info, vha, 0xb0cb,
1809                             "%s: qla4xxx driver IDC version %d "
1810                             "is not compatible with IDC version %d "
1811                             "of other drivers!\n",
1812                             __func__, QLA8044_IDC_VER_MAJ_VALUE,
1813                             idc_ver);
1814                         rval = QLA_FUNCTION_FAILED;
1815                         goto exit_set_idc_ver;
1816                 }
1817         }
1818 
1819         /* Update IDC_MINOR_VERSION */
1820         idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR);
1821         idc_ver &= ~(0x03 << (ha->portnum * 2));
1822         idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2));
1823         qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver);
1824 
1825 exit_set_idc_ver:
1826         return rval;
1827 }
1828 
1829 static int
1830 qla8044_update_idc_reg(struct scsi_qla_host *vha)
1831 {
1832         uint32_t drv_active;
1833         int rval = QLA_SUCCESS;
1834         struct qla_hw_data *ha = vha->hw;
1835 
1836         if (vha->flags.init_done)
1837                 goto exit_update_idc_reg;
1838 
1839         qla8044_idc_lock(ha);
1840         qla8044_set_drv_active(vha);
1841 
1842         drv_active = qla8044_rd_direct(vha,
1843             QLA8044_CRB_DRV_ACTIVE_INDEX);
1844 
1845         /* If we are the first driver to load and
1846          * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */
1847         if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba)
1848                 qla8044_clear_idc_dontreset(vha);
1849 
1850         rval = qla8044_set_idc_ver(vha);
1851         if (rval == QLA_FUNCTION_FAILED)
1852                 qla8044_clear_drv_active(ha);
1853         qla8044_idc_unlock(ha);
1854 
1855 exit_update_idc_reg:
1856         return rval;
1857 }
1858 
1859 /**
1860  * qla8044_need_qsnt_handler - Code to start qsnt
1861  * @vha: pointer to adapter structure
1862  */
1863 static void
1864 qla8044_need_qsnt_handler(struct scsi_qla_host *vha)
1865 {
1866         unsigned long qsnt_timeout;
1867         uint32_t drv_state, drv_active, dev_state;
1868         struct qla_hw_data *ha = vha->hw;
1869 
1870         if (vha->flags.online)
1871                 qla2x00_quiesce_io(vha);
1872         else
1873                 return;
1874 
1875         qla8044_set_qsnt_ready(vha);
1876 
1877         /* Wait for 30 secs for all functions to ack qsnt mode */
1878         qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ);
1879         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1880         drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1881 
1882         /* Shift drv_active by 1 to match drv_state. As quiescent ready bit
1883            position is at bit 1 and drv active is at bit 0 */
1884         drv_active = drv_active << 1;
1885 
1886         while (drv_state != drv_active) {
1887                 if (time_after_eq(jiffies, qsnt_timeout)) {
1888                         /* Other functions did not ack, changing state to
1889                          * DEV_READY
1890                          */
1891                         clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1892                         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1893                                             QLA8XXX_DEV_READY);
1894                         qla8044_clear_qsnt_ready(vha);
1895                         ql_log(ql_log_info, vha, 0xb0cc,
1896                             "Timeout waiting for quiescent ack!!!\n");
1897                         return;
1898                 }
1899                 qla8044_idc_unlock(ha);
1900                 msleep(1000);
1901                 qla8044_idc_lock(ha);
1902 
1903                 drv_state = qla8044_rd_direct(vha,
1904                     QLA8044_CRB_DRV_STATE_INDEX);
1905                 drv_active = qla8044_rd_direct(vha,
1906                     QLA8044_CRB_DRV_ACTIVE_INDEX);
1907                 drv_active = drv_active << 1;
1908         }
1909 
1910         /* All functions have Acked. Set quiescent state */
1911         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1912 
1913         if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
1914                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1915                     QLA8XXX_DEV_QUIESCENT);
1916                 ql_log(ql_log_info, vha, 0xb0cd,
1917                     "%s: HW State: QUIESCENT\n", __func__);
1918         }
1919 }
1920 
1921 /*
1922  * qla8044_device_state_handler - Adapter state machine
1923  * @ha: pointer to host adapter structure.
1924  *
1925  * Note: IDC lock must be UNLOCKED upon entry
1926  **/
1927 int
1928 qla8044_device_state_handler(struct scsi_qla_host *vha)
1929 {
1930         uint32_t dev_state;
1931         int rval = QLA_SUCCESS;
1932         unsigned long dev_init_timeout;
1933         struct qla_hw_data *ha = vha->hw;
1934 
1935         rval = qla8044_update_idc_reg(vha);
1936         if (rval == QLA_FUNCTION_FAILED)
1937                 goto exit_error;
1938 
1939         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1940         ql_dbg(ql_dbg_p3p, vha, 0xb0ce,
1941             "Device state is 0x%x = %s\n",
1942             dev_state, dev_state < MAX_STATES ?
1943             qdev_state(dev_state) : "Unknown");
1944 
1945         /* wait for 30 seconds for device to go ready */
1946         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
1947 
1948         qla8044_idc_lock(ha);
1949 
1950         while (1) {
1951                 if (time_after_eq(jiffies, dev_init_timeout)) {
1952                         if (qla8044_check_drv_active(vha) == QLA_SUCCESS) {
1953                                 ql_log(ql_log_warn, vha, 0xb0cf,
1954                                     "%s: Device Init Failed 0x%x = %s\n",
1955                                     QLA2XXX_DRIVER_NAME, dev_state,
1956                                     dev_state < MAX_STATES ?
1957                                     qdev_state(dev_state) : "Unknown");
1958                                 qla8044_wr_direct(vha,
1959                                     QLA8044_CRB_DEV_STATE_INDEX,
1960                                     QLA8XXX_DEV_FAILED);
1961                         }
1962                 }
1963 
1964                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1965                 ql_log(ql_log_info, vha, 0xb0d0,
1966                     "Device state is 0x%x = %s\n",
1967                     dev_state, dev_state < MAX_STATES ?
1968                     qdev_state(dev_state) : "Unknown");
1969 
1970                 /* NOTE: Make sure idc unlocked upon exit of switch statement */
1971                 switch (dev_state) {
1972                 case QLA8XXX_DEV_READY:
1973                         ha->flags.nic_core_reset_owner = 0;
1974                         goto exit;
1975                 case QLA8XXX_DEV_COLD:
1976                         rval = qla8044_device_bootstrap(vha);
1977                         break;
1978                 case QLA8XXX_DEV_INITIALIZING:
1979                         qla8044_idc_unlock(ha);
1980                         msleep(1000);
1981                         qla8044_idc_lock(ha);
1982                         break;
1983                 case QLA8XXX_DEV_NEED_RESET:
1984                         /* For ISP8044, if NEED_RESET is set by any driver,
1985                          * it should be honored, irrespective of IDC_CTRL
1986                          * DONTRESET_BIT0 */
1987                         qla8044_need_reset_handler(vha);
1988                         break;
1989                 case QLA8XXX_DEV_NEED_QUIESCENT:
1990                         /* idc locked/unlocked in handler */
1991                         qla8044_need_qsnt_handler(vha);
1992 
1993                         /* Reset the init timeout after qsnt handler */
1994                         dev_init_timeout = jiffies +
1995                             (ha->fcoe_reset_timeout * HZ);
1996                         break;
1997                 case QLA8XXX_DEV_QUIESCENT:
1998                         ql_log(ql_log_info, vha, 0xb0d1,
1999                             "HW State: QUIESCENT\n");
2000 
2001                         qla8044_idc_unlock(ha);
2002                         msleep(1000);
2003                         qla8044_idc_lock(ha);
2004 
2005                         /* Reset the init timeout after qsnt handler */
2006                         dev_init_timeout = jiffies +
2007                             (ha->fcoe_reset_timeout * HZ);
2008                         break;
2009                 case QLA8XXX_DEV_FAILED:
2010                         ha->flags.nic_core_reset_owner = 0;
2011                         qla8044_idc_unlock(ha);
2012                         qla8xxx_dev_failed_handler(vha);
2013                         rval = QLA_FUNCTION_FAILED;
2014                         qla8044_idc_lock(ha);
2015                         goto exit;
2016                 default:
2017                         qla8044_idc_unlock(ha);
2018                         qla8xxx_dev_failed_handler(vha);
2019                         rval = QLA_FUNCTION_FAILED;
2020                         qla8044_idc_lock(ha);
2021                         goto exit;
2022                 }
2023         }
2024 exit:
2025         qla8044_idc_unlock(ha);
2026 
2027 exit_error:
2028         return rval;
2029 }
2030 
2031 /**
2032  * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2033  * @vha: adapter block pointer.
2034  *
2035  * Note: The caller should not hold the idc lock.
2036  */
2037 static int
2038 qla8044_check_temp(struct scsi_qla_host *vha)
2039 {
2040         uint32_t temp, temp_state, temp_val;
2041         int status = QLA_SUCCESS;
2042 
2043         temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2044         temp_state = qla82xx_get_temp_state(temp);
2045         temp_val = qla82xx_get_temp_val(temp);
2046 
2047         if (temp_state == QLA82XX_TEMP_PANIC) {
2048                 ql_log(ql_log_warn, vha, 0xb0d2,
2049                     "Device temperature %d degrees C"
2050                     " exceeds maximum allowed. Hardware has been shut"
2051                     " down\n", temp_val);
2052                 status = QLA_FUNCTION_FAILED;
2053                 return status;
2054         } else if (temp_state == QLA82XX_TEMP_WARN) {
2055                 ql_log(ql_log_warn, vha, 0xb0d3,
2056                     "Device temperature %d"
2057                     " degrees C exceeds operating range."
2058                     " Immediate action needed.\n", temp_val);
2059         }
2060         return 0;
2061 }
2062 
2063 int qla8044_read_temperature(scsi_qla_host_t *vha)
2064 {
2065         uint32_t temp;
2066 
2067         temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2068         return qla82xx_get_temp_val(temp);
2069 }
2070 
2071 /**
2072  * qla8044_check_fw_alive  - Check firmware health
2073  * @vha: Pointer to host adapter structure.
2074  *
2075  * Context: Interrupt
2076  */
2077 int
2078 qla8044_check_fw_alive(struct scsi_qla_host *vha)
2079 {
2080         uint32_t fw_heartbeat_counter;
2081         uint32_t halt_status1, halt_status2;
2082         int status = QLA_SUCCESS;
2083 
2084         fw_heartbeat_counter = qla8044_rd_direct(vha,
2085             QLA8044_PEG_ALIVE_COUNTER_INDEX);
2086 
2087         /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2088         if (fw_heartbeat_counter == 0xffffffff) {
2089                 ql_dbg(ql_dbg_p3p, vha, 0xb0d4,
2090                     "scsi%ld: %s: Device in frozen "
2091                     "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2092                     vha->host_no, __func__);
2093                 return status;
2094         }
2095 
2096         if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
2097                 vha->seconds_since_last_heartbeat++;
2098                 /* FW not alive after 2 seconds */
2099                 if (vha->seconds_since_last_heartbeat == 2) {
2100                         vha->seconds_since_last_heartbeat = 0;
2101                         halt_status1 = qla8044_rd_direct(vha,
2102                             QLA8044_PEG_HALT_STATUS1_INDEX);
2103                         halt_status2 = qla8044_rd_direct(vha,
2104                             QLA8044_PEG_HALT_STATUS2_INDEX);
2105 
2106                         ql_log(ql_log_info, vha, 0xb0d5,
2107                             "scsi(%ld): %s, ISP8044 "
2108                             "Dumping hw/fw registers:\n"
2109                             " PEG_HALT_STATUS1: 0x%x, "
2110                             "PEG_HALT_STATUS2: 0x%x,\n",
2111                             vha->host_no, __func__, halt_status1,
2112                             halt_status2);
2113                         status = QLA_FUNCTION_FAILED;
2114                 }
2115         } else
2116                 vha->seconds_since_last_heartbeat = 0;
2117 
2118         vha->fw_heartbeat_counter = fw_heartbeat_counter;
2119         return status;
2120 }
2121 
2122 void
2123 qla8044_watchdog(struct scsi_qla_host *vha)
2124 {
2125         uint32_t dev_state, halt_status;
2126         int halt_status_unrecoverable = 0;
2127         struct qla_hw_data *ha = vha->hw;
2128 
2129         /* don't poll if reset is going on or FW hang in quiescent state */
2130         if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
2131             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) {
2132                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
2133 
2134                 if (qla8044_check_fw_alive(vha)) {
2135                         ha->flags.isp82xx_fw_hung = 1;
2136                         ql_log(ql_log_warn, vha, 0xb10a,
2137                             "Firmware hung.\n");
2138                         qla82xx_clear_pending_mbx(vha);
2139                 }
2140 
2141                 if (qla8044_check_temp(vha)) {
2142                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
2143                         ha->flags.isp82xx_fw_hung = 1;
2144                         qla2xxx_wake_dpc(vha);
2145                 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
2146                            !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
2147                         ql_log(ql_log_info, vha, 0xb0d6,
2148                             "%s: HW State: NEED RESET!\n",
2149                             __func__);
2150                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2151                         qla2xxx_wake_dpc(vha);
2152                 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
2153                     !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
2154                         ql_log(ql_log_info, vha, 0xb0d7,
2155                             "%s: HW State: NEED QUIES detected!\n",
2156                             __func__);
2157                         set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
2158                         qla2xxx_wake_dpc(vha);
2159                 } else  {
2160                         /* Check firmware health */
2161                         if (ha->flags.isp82xx_fw_hung) {
2162                                 halt_status = qla8044_rd_direct(vha,
2163                                         QLA8044_PEG_HALT_STATUS1_INDEX);
2164                                 if (halt_status &
2165                                     QLA8044_HALT_STATUS_FW_RESET) {
2166                                         ql_log(ql_log_fatal, vha,
2167                                             0xb0d8, "%s: Firmware "
2168                                             "error detected device "
2169                                             "is being reset\n",
2170                                             __func__);
2171                                 } else if (halt_status &
2172                                             QLA8044_HALT_STATUS_UNRECOVERABLE) {
2173                                                 halt_status_unrecoverable = 1;
2174                                 }
2175 
2176                                 /* Since we cannot change dev_state in interrupt
2177                                  * context, set appropriate DPC flag then wakeup
2178                                  *  DPC */
2179                                 if (halt_status_unrecoverable) {
2180                                         set_bit(ISP_UNRECOVERABLE,
2181                                             &vha->dpc_flags);
2182                                 } else {
2183                                         if (dev_state ==
2184                                             QLA8XXX_DEV_QUIESCENT) {
2185                                                 set_bit(FCOE_CTX_RESET_NEEDED,
2186                                                     &vha->dpc_flags);
2187                                                 ql_log(ql_log_info, vha, 0xb0d9,
2188                                                     "%s: FW CONTEXT Reset "
2189                                                     "needed!\n", __func__);
2190                                         } else {
2191                                                 ql_log(ql_log_info, vha,
2192                                                     0xb0da, "%s: "
2193                                                     "detect abort needed\n",
2194                                                     __func__);
2195                                                 set_bit(ISP_ABORT_NEEDED,
2196                                                     &vha->dpc_flags);
2197                                         }
2198                                 }
2199                                 qla2xxx_wake_dpc(vha);
2200                         }
2201                 }
2202 
2203         }
2204 }
2205 
2206 static int
2207 qla8044_minidump_process_control(struct scsi_qla_host *vha,
2208                                  struct qla8044_minidump_entry_hdr *entry_hdr)
2209 {
2210         struct qla8044_minidump_entry_crb *crb_entry;
2211         uint32_t read_value, opcode, poll_time, addr, index;
2212         uint32_t crb_addr, rval = QLA_SUCCESS;
2213         unsigned long wtime;
2214         struct qla8044_minidump_template_hdr *tmplt_hdr;
2215         int i;
2216         struct qla_hw_data *ha = vha->hw;
2217 
2218         ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__);
2219         tmplt_hdr = (struct qla8044_minidump_template_hdr *)
2220                 ha->md_tmplt_hdr;
2221         crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr;
2222 
2223         crb_addr = crb_entry->addr;
2224         for (i = 0; i < crb_entry->op_count; i++) {
2225                 opcode = crb_entry->crb_ctrl.opcode;
2226 
2227                 if (opcode & QLA82XX_DBG_OPCODE_WR) {
2228                         qla8044_wr_reg_indirect(vha, crb_addr,
2229                             crb_entry->value_1);
2230                         opcode &= ~QLA82XX_DBG_OPCODE_WR;
2231                 }
2232 
2233                 if (opcode & QLA82XX_DBG_OPCODE_RW) {
2234                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2235                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2236                         opcode &= ~QLA82XX_DBG_OPCODE_RW;
2237                 }
2238 
2239                 if (opcode & QLA82XX_DBG_OPCODE_AND) {
2240                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2241                         read_value &= crb_entry->value_2;
2242                         opcode &= ~QLA82XX_DBG_OPCODE_AND;
2243                         if (opcode & QLA82XX_DBG_OPCODE_OR) {
2244                                 read_value |= crb_entry->value_3;
2245                                 opcode &= ~QLA82XX_DBG_OPCODE_OR;
2246                         }
2247                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2248                 }
2249                 if (opcode & QLA82XX_DBG_OPCODE_OR) {
2250                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2251                         read_value |= crb_entry->value_3;
2252                         qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2253                         opcode &= ~QLA82XX_DBG_OPCODE_OR;
2254                 }
2255                 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
2256                         poll_time = crb_entry->crb_strd.poll_timeout;
2257                         wtime = jiffies + poll_time;
2258                         qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2259 
2260                         do {
2261                                 if ((read_value & crb_entry->value_2) ==
2262                                     crb_entry->value_1) {
2263                                         break;
2264                                 } else if (time_after_eq(jiffies, wtime)) {
2265                                         /* capturing dump failed */
2266                                         rval = QLA_FUNCTION_FAILED;
2267                                         break;
2268                                 } else {
2269                                         qla8044_rd_reg_indirect(vha,
2270                                             crb_addr, &read_value);
2271                                 }
2272                         } while (1);
2273                         opcode &= ~QLA82XX_DBG_OPCODE_POLL;
2274                 }
2275 
2276                 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
2277                         if (crb_entry->crb_strd.state_index_a) {
2278                                 index = crb_entry->crb_strd.state_index_a;
2279                                 addr = tmplt_hdr->saved_state_array[index];
2280                         } else {
2281                                 addr = crb_addr;
2282                         }
2283 
2284                         qla8044_rd_reg_indirect(vha, addr, &read_value);
2285                         index = crb_entry->crb_ctrl.state_index_v;
2286                         tmplt_hdr->saved_state_array[index] = read_value;
2287                         opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
2288                 }
2289 
2290                 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
2291                         if (crb_entry->crb_strd.state_index_a) {
2292                                 index = crb_entry->crb_strd.state_index_a;
2293                                 addr = tmplt_hdr->saved_state_array[index];
2294                         } else {
2295                                 addr = crb_addr;
2296                         }
2297 
2298                         if (crb_entry->crb_ctrl.state_index_v) {
2299                                 index = crb_entry->crb_ctrl.state_index_v;
2300                                 read_value =
2301                                     tmplt_hdr->saved_state_array[index];
2302                         } else {
2303                                 read_value = crb_entry->value_1;
2304                         }
2305 
2306                         qla8044_wr_reg_indirect(vha, addr, read_value);
2307                         opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
2308                 }
2309 
2310                 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
2311                         index = crb_entry->crb_ctrl.state_index_v;
2312                         read_value = tmplt_hdr->saved_state_array[index];
2313                         read_value <<= crb_entry->crb_ctrl.shl;
2314                         read_value >>= crb_entry->crb_ctrl.shr;
2315                         if (crb_entry->value_2)
2316                                 read_value &= crb_entry->value_2;
2317                         read_value |= crb_entry->value_3;
2318                         read_value += crb_entry->value_1;
2319                         tmplt_hdr->saved_state_array[index] = read_value;
2320                         opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
2321                 }
2322                 crb_addr += crb_entry->crb_strd.addr_stride;
2323         }
2324         return rval;
2325 }
2326 
2327 static void
2328 qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha,
2329         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2330 {
2331         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2332         struct qla8044_minidump_entry_crb *crb_hdr;
2333         uint32_t *data_ptr = *d_ptr;
2334 
2335         ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__);
2336         crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr;
2337         r_addr = crb_hdr->addr;
2338         r_stride = crb_hdr->crb_strd.addr_stride;
2339         loop_cnt = crb_hdr->op_count;
2340 
2341         for (i = 0; i < loop_cnt; i++) {
2342                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2343                 *data_ptr++ = r_addr;
2344                 *data_ptr++ = r_value;
2345                 r_addr += r_stride;
2346         }
2347         *d_ptr = data_ptr;
2348 }
2349 
2350 static int
2351 qla8044_minidump_process_rdmem(struct scsi_qla_host *vha,
2352         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2353 {
2354         uint32_t r_addr, r_value, r_data;
2355         uint32_t i, j, loop_cnt;
2356         struct qla8044_minidump_entry_rdmem *m_hdr;
2357         unsigned long flags;
2358         uint32_t *data_ptr = *d_ptr;
2359         struct qla_hw_data *ha = vha->hw;
2360 
2361         ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__);
2362         m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr;
2363         r_addr = m_hdr->read_addr;
2364         loop_cnt = m_hdr->read_data_size/16;
2365 
2366         ql_dbg(ql_dbg_p3p, vha, 0xb0f0,
2367             "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2368             __func__, r_addr, m_hdr->read_data_size);
2369 
2370         if (r_addr & 0xf) {
2371                 ql_dbg(ql_dbg_p3p, vha, 0xb0f1,
2372                     "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2373                     __func__, r_addr);
2374                 return QLA_FUNCTION_FAILED;
2375         }
2376 
2377         if (m_hdr->read_data_size % 16) {
2378                 ql_dbg(ql_dbg_p3p, vha, 0xb0f2,
2379                     "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2380                     __func__, m_hdr->read_data_size);
2381                 return QLA_FUNCTION_FAILED;
2382         }
2383 
2384         ql_dbg(ql_dbg_p3p, vha, 0xb0f3,
2385             "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2386             __func__, r_addr, m_hdr->read_data_size, loop_cnt);
2387 
2388         write_lock_irqsave(&ha->hw_lock, flags);
2389         for (i = 0; i < loop_cnt; i++) {
2390                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr);
2391                 r_value = 0;
2392                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value);
2393                 r_value = MIU_TA_CTL_ENABLE;
2394                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2395                 r_value = MIU_TA_CTL_START_ENABLE;
2396                 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2397 
2398                 for (j = 0; j < MAX_CTL_CHECK; j++) {
2399                         qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
2400                             &r_value);
2401                         if ((r_value & MIU_TA_CTL_BUSY) == 0)
2402                                 break;
2403                 }
2404 
2405                 if (j >= MAX_CTL_CHECK) {
2406                         write_unlock_irqrestore(&ha->hw_lock, flags);
2407                         return QLA_SUCCESS;
2408                 }
2409 
2410                 for (j = 0; j < 4; j++) {
2411                         qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j],
2412                             &r_data);
2413                         *data_ptr++ = r_data;
2414                 }
2415 
2416                 r_addr += 16;
2417         }
2418         write_unlock_irqrestore(&ha->hw_lock, flags);
2419 
2420         ql_dbg(ql_dbg_p3p, vha, 0xb0f4,
2421             "Leaving fn: %s datacount: 0x%x\n",
2422              __func__, (loop_cnt * 16));
2423 
2424         *d_ptr = data_ptr;
2425         return QLA_SUCCESS;
2426 }
2427 
2428 /* ISP83xx flash read for _RDROM _BOARD */
2429 static uint32_t
2430 qla8044_minidump_process_rdrom(struct scsi_qla_host *vha,
2431         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2432 {
2433         uint32_t fl_addr, u32_count, rval;
2434         struct qla8044_minidump_entry_rdrom *rom_hdr;
2435         uint32_t *data_ptr = *d_ptr;
2436 
2437         rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr;
2438         fl_addr = rom_hdr->read_addr;
2439         u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t);
2440 
2441         ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2442             __func__, fl_addr, u32_count);
2443 
2444         rval = qla8044_lockless_flash_read_u32(vha, fl_addr,
2445             (u8 *)(data_ptr), u32_count);
2446 
2447         if (rval != QLA_SUCCESS) {
2448                 ql_log(ql_log_fatal, vha, 0xb0f6,
2449                     "%s: Flash Read Error,Count=%d\n", __func__, u32_count);
2450                 return QLA_FUNCTION_FAILED;
2451         } else {
2452                 data_ptr += u32_count;
2453                 *d_ptr = data_ptr;
2454                 return QLA_SUCCESS;
2455         }
2456 }
2457 
2458 static void
2459 qla8044_mark_entry_skipped(struct scsi_qla_host *vha,
2460         struct qla8044_minidump_entry_hdr *entry_hdr, int index)
2461 {
2462         entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
2463 
2464         ql_log(ql_log_info, vha, 0xb0f7,
2465             "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2466             vha->host_no, index, entry_hdr->entry_type,
2467             entry_hdr->d_ctrl.entry_capture_mask);
2468 }
2469 
2470 static int
2471 qla8044_minidump_process_l2tag(struct scsi_qla_host *vha,
2472         struct qla8044_minidump_entry_hdr *entry_hdr,
2473                                  uint32_t **d_ptr)
2474 {
2475         uint32_t addr, r_addr, c_addr, t_r_addr;
2476         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2477         unsigned long p_wait, w_time, p_mask;
2478         uint32_t c_value_w, c_value_r;
2479         struct qla8044_minidump_entry_cache *cache_hdr;
2480         int rval = QLA_FUNCTION_FAILED;
2481         uint32_t *data_ptr = *d_ptr;
2482 
2483         ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__);
2484         cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2485 
2486         loop_count = cache_hdr->op_count;
2487         r_addr = cache_hdr->read_addr;
2488         c_addr = cache_hdr->control_addr;
2489         c_value_w = cache_hdr->cache_ctrl.write_value;
2490 
2491         t_r_addr = cache_hdr->tag_reg_addr;
2492         t_value = cache_hdr->addr_ctrl.init_tag_value;
2493         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2494         p_wait = cache_hdr->cache_ctrl.poll_wait;
2495         p_mask = cache_hdr->cache_ctrl.poll_mask;
2496 
2497         for (i = 0; i < loop_count; i++) {
2498                 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2499                 if (c_value_w)
2500                         qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2501 
2502                 if (p_mask) {
2503                         w_time = jiffies + p_wait;
2504                         do {
2505                                 qla8044_rd_reg_indirect(vha, c_addr,
2506                                     &c_value_r);
2507                                 if ((c_value_r & p_mask) == 0) {
2508                                         break;
2509                                 } else if (time_after_eq(jiffies, w_time)) {
2510                                         /* capturing dump failed */
2511                                         return rval;
2512                                 }
2513                         } while (1);
2514                 }
2515 
2516                 addr = r_addr;
2517                 for (k = 0; k < r_cnt; k++) {
2518                         qla8044_rd_reg_indirect(vha, addr, &r_value);
2519                         *data_ptr++ = r_value;
2520                         addr += cache_hdr->read_ctrl.read_addr_stride;
2521                 }
2522                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2523         }
2524         *d_ptr = data_ptr;
2525         return QLA_SUCCESS;
2526 }
2527 
2528 static void
2529 qla8044_minidump_process_l1cache(struct scsi_qla_host *vha,
2530         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2531 {
2532         uint32_t addr, r_addr, c_addr, t_r_addr;
2533         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2534         uint32_t c_value_w;
2535         struct qla8044_minidump_entry_cache *cache_hdr;
2536         uint32_t *data_ptr = *d_ptr;
2537 
2538         cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2539         loop_count = cache_hdr->op_count;
2540         r_addr = cache_hdr->read_addr;
2541         c_addr = cache_hdr->control_addr;
2542         c_value_w = cache_hdr->cache_ctrl.write_value;
2543 
2544         t_r_addr = cache_hdr->tag_reg_addr;
2545         t_value = cache_hdr->addr_ctrl.init_tag_value;
2546         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2547 
2548         for (i = 0; i < loop_count; i++) {
2549                 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2550                 qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2551                 addr = r_addr;
2552                 for (k = 0; k < r_cnt; k++) {
2553                         qla8044_rd_reg_indirect(vha, addr, &r_value);
2554                         *data_ptr++ = r_value;
2555                         addr += cache_hdr->read_ctrl.read_addr_stride;
2556                 }
2557                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2558         }
2559         *d_ptr = data_ptr;
2560 }
2561 
2562 static void
2563 qla8044_minidump_process_rdocm(struct scsi_qla_host *vha,
2564         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2565 {
2566         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2567         struct qla8044_minidump_entry_rdocm *ocm_hdr;
2568         uint32_t *data_ptr = *d_ptr;
2569         struct qla_hw_data *ha = vha->hw;
2570 
2571         ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__);
2572 
2573         ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr;
2574         r_addr = ocm_hdr->read_addr;
2575         r_stride = ocm_hdr->read_addr_stride;
2576         loop_cnt = ocm_hdr->op_count;
2577 
2578         ql_dbg(ql_dbg_p3p, vha, 0xb0fa,
2579             "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2580             __func__, r_addr, r_stride, loop_cnt);
2581 
2582         for (i = 0; i < loop_cnt; i++) {
2583                 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2584                 *data_ptr++ = r_value;
2585                 r_addr += r_stride;
2586         }
2587         ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n",
2588             __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t)));
2589 
2590         *d_ptr = data_ptr;
2591 }
2592 
2593 static void
2594 qla8044_minidump_process_rdmux(struct scsi_qla_host *vha,
2595         struct qla8044_minidump_entry_hdr *entry_hdr,
2596         uint32_t **d_ptr)
2597 {
2598         uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2599         struct qla8044_minidump_entry_mux *mux_hdr;
2600         uint32_t *data_ptr = *d_ptr;
2601 
2602         ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__);
2603 
2604         mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr;
2605         r_addr = mux_hdr->read_addr;
2606         s_addr = mux_hdr->select_addr;
2607         s_stride = mux_hdr->select_value_stride;
2608         s_value = mux_hdr->select_value;
2609         loop_cnt = mux_hdr->op_count;
2610 
2611         for (i = 0; i < loop_cnt; i++) {
2612                 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2613                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2614                 *data_ptr++ = s_value;
2615                 *data_ptr++ = r_value;
2616                 s_value += s_stride;
2617         }
2618         *d_ptr = data_ptr;
2619 }
2620 
2621 static void
2622 qla8044_minidump_process_queue(struct scsi_qla_host *vha,
2623         struct qla8044_minidump_entry_hdr *entry_hdr,
2624         uint32_t **d_ptr)
2625 {
2626         uint32_t s_addr, r_addr;
2627         uint32_t r_stride, r_value, r_cnt, qid = 0;
2628         uint32_t i, k, loop_cnt;
2629         struct qla8044_minidump_entry_queue *q_hdr;
2630         uint32_t *data_ptr = *d_ptr;
2631 
2632         ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__);
2633         q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr;
2634         s_addr = q_hdr->select_addr;
2635         r_cnt = q_hdr->rd_strd.read_addr_cnt;
2636         r_stride = q_hdr->rd_strd.read_addr_stride;
2637         loop_cnt = q_hdr->op_count;
2638 
2639         for (i = 0; i < loop_cnt; i++) {
2640                 qla8044_wr_reg_indirect(vha, s_addr, qid);
2641                 r_addr = q_hdr->read_addr;
2642                 for (k = 0; k < r_cnt; k++) {
2643                         qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2644                         *data_ptr++ = r_value;
2645                         r_addr += r_stride;
2646                 }
2647                 qid += q_hdr->q_strd.queue_id_stride;
2648         }
2649         *d_ptr = data_ptr;
2650 }
2651 
2652 /* ISP83xx functions to process new minidump entries... */
2653 static uint32_t
2654 qla8044_minidump_process_pollrd(struct scsi_qla_host *vha,
2655         struct qla8044_minidump_entry_hdr *entry_hdr,
2656         uint32_t **d_ptr)
2657 {
2658         uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2659         uint16_t s_stride, i;
2660         struct qla8044_minidump_entry_pollrd *pollrd_hdr;
2661         uint32_t *data_ptr = *d_ptr;
2662 
2663         pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr;
2664         s_addr = pollrd_hdr->select_addr;
2665         r_addr = pollrd_hdr->read_addr;
2666         s_value = pollrd_hdr->select_value;
2667         s_stride = pollrd_hdr->select_value_stride;
2668 
2669         poll_wait = pollrd_hdr->poll_wait;
2670         poll_mask = pollrd_hdr->poll_mask;
2671 
2672         for (i = 0; i < pollrd_hdr->op_count; i++) {
2673                 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2674                 poll_wait = pollrd_hdr->poll_wait;
2675                 while (1) {
2676                         qla8044_rd_reg_indirect(vha, s_addr, &r_value);
2677                         if ((r_value & poll_mask) != 0) {
2678                                 break;
2679                         } else {
2680                                 usleep_range(1000, 1100);
2681                                 if (--poll_wait == 0) {
2682                                         ql_log(ql_log_fatal, vha, 0xb0fe,
2683                                             "%s: TIMEOUT\n", __func__);
2684                                         goto error;
2685                                 }
2686                         }
2687                 }
2688                 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2689                 *data_ptr++ = s_value;
2690                 *data_ptr++ = r_value;
2691 
2692                 s_value += s_stride;
2693         }
2694         *d_ptr = data_ptr;
2695         return QLA_SUCCESS;
2696 
2697 error:
2698         return QLA_FUNCTION_FAILED;
2699 }
2700 
2701 static void
2702 qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha,
2703         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2704 {
2705         uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2706         uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2707         struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr;
2708         uint32_t *data_ptr = *d_ptr;
2709 
2710         rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr;
2711         sel_val1 = rdmux2_hdr->select_value_1;
2712         sel_val2 = rdmux2_hdr->select_value_2;
2713         sel_addr1 = rdmux2_hdr->select_addr_1;
2714         sel_addr2 = rdmux2_hdr->select_addr_2;
2715         sel_val_mask = rdmux2_hdr->select_value_mask;
2716         read_addr = rdmux2_hdr->read_addr;
2717 
2718         for (i = 0; i < rdmux2_hdr->op_count; i++) {
2719                 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1);
2720                 t_sel_val = sel_val1 & sel_val_mask;
2721                 *data_ptr++ = t_sel_val;
2722 
2723                 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2724                 qla8044_rd_reg_indirect(vha, read_addr, &data);
2725 
2726                 *data_ptr++ = data;
2727 
2728                 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2);
2729                 t_sel_val = sel_val2 & sel_val_mask;
2730                 *data_ptr++ = t_sel_val;
2731 
2732                 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2733                 qla8044_rd_reg_indirect(vha, read_addr, &data);
2734 
2735                 *data_ptr++ = data;
2736 
2737                 sel_val1 += rdmux2_hdr->select_value_stride;
2738                 sel_val2 += rdmux2_hdr->select_value_stride;
2739         }
2740 
2741         *d_ptr = data_ptr;
2742 }
2743 
2744 static uint32_t
2745 qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha,
2746         struct qla8044_minidump_entry_hdr *entry_hdr,
2747         uint32_t **d_ptr)
2748 {
2749         uint32_t poll_wait, poll_mask, r_value, data;
2750         uint32_t addr_1, addr_2, value_1, value_2;
2751         struct qla8044_minidump_entry_pollrdmwr *poll_hdr;
2752         uint32_t *data_ptr = *d_ptr;
2753 
2754         poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr;
2755         addr_1 = poll_hdr->addr_1;
2756         addr_2 = poll_hdr->addr_2;
2757         value_1 = poll_hdr->value_1;
2758         value_2 = poll_hdr->value_2;
2759         poll_mask = poll_hdr->poll_mask;
2760 
2761         qla8044_wr_reg_indirect(vha, addr_1, value_1);
2762 
2763         poll_wait = poll_hdr->poll_wait;
2764         while (1) {
2765                 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2766 
2767                 if ((r_value & poll_mask) != 0) {
2768                         break;
2769                 } else {
2770                         usleep_range(1000, 1100);
2771                         if (--poll_wait == 0) {
2772                                 ql_log(ql_log_fatal, vha, 0xb0ff,
2773                                     "%s: TIMEOUT\n", __func__);
2774                                 goto error;
2775                         }
2776                 }
2777         }
2778 
2779         qla8044_rd_reg_indirect(vha, addr_2, &data);
2780         data &= poll_hdr->modify_mask;
2781         qla8044_wr_reg_indirect(vha, addr_2, data);
2782         qla8044_wr_reg_indirect(vha, addr_1, value_2);
2783 
2784         poll_wait = poll_hdr->poll_wait;
2785         while (1) {
2786                 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2787 
2788                 if ((r_value & poll_mask) != 0) {
2789                         break;
2790                 } else {
2791                         usleep_range(1000, 1100);
2792                         if (--poll_wait == 0) {
2793                                 ql_log(ql_log_fatal, vha, 0xb100,
2794                                     "%s: TIMEOUT2\n", __func__);
2795                                 goto error;
2796                         }
2797                 }
2798         }
2799 
2800         *data_ptr++ = addr_2;
2801         *data_ptr++ = data;
2802 
2803         *d_ptr = data_ptr;
2804 
2805         return QLA_SUCCESS;
2806 
2807 error:
2808         return QLA_FUNCTION_FAILED;
2809 }
2810 
2811 #define ISP8044_PEX_DMA_ENGINE_INDEX            8
2812 #define ISP8044_PEX_DMA_BASE_ADDRESS            0x77320000
2813 #define ISP8044_PEX_DMA_NUM_OFFSET              0x10000UL
2814 #define ISP8044_PEX_DMA_CMD_ADDR_LOW            0x0
2815 #define ISP8044_PEX_DMA_CMD_ADDR_HIGH           0x04
2816 #define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL       0x08
2817 
2818 #define ISP8044_PEX_DMA_READ_SIZE       (16 * 1024)
2819 #define ISP8044_PEX_DMA_MAX_WAIT        (100 * 100) /* Max wait of 100 msecs */
2820 
2821 static int
2822 qla8044_check_dma_engine_state(struct scsi_qla_host *vha)
2823 {
2824         struct qla_hw_data *ha = vha->hw;
2825         int rval = QLA_SUCCESS;
2826         uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2827         uint64_t dma_base_addr = 0;
2828         struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2829 
2830         tmplt_hdr = ha->md_tmplt_hdr;
2831         dma_eng_num =
2832             tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2833         dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2834                 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2835 
2836         /* Read the pex-dma's command-status-and-control register. */
2837         rval = qla8044_rd_reg_indirect(vha,
2838             (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2839             &cmd_sts_and_cntrl);
2840         if (rval)
2841                 return QLA_FUNCTION_FAILED;
2842 
2843         /* Check if requested pex-dma engine is available. */
2844         if (cmd_sts_and_cntrl & BIT_31)
2845                 return QLA_SUCCESS;
2846 
2847         return QLA_FUNCTION_FAILED;
2848 }
2849 
2850 static int
2851 qla8044_start_pex_dma(struct scsi_qla_host *vha,
2852         struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr)
2853 {
2854         struct qla_hw_data *ha = vha->hw;
2855         int rval = QLA_SUCCESS, wait = 0;
2856         uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2857         uint64_t dma_base_addr = 0;
2858         struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2859 
2860         tmplt_hdr = ha->md_tmplt_hdr;
2861         dma_eng_num =
2862             tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2863         dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2864                 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2865 
2866         rval = qla8044_wr_reg_indirect(vha,
2867             dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW,
2868             m_hdr->desc_card_addr);
2869         if (rval)
2870                 goto error_exit;
2871 
2872         rval = qla8044_wr_reg_indirect(vha,
2873             dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0);
2874         if (rval)
2875                 goto error_exit;
2876 
2877         rval = qla8044_wr_reg_indirect(vha,
2878             dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL,
2879             m_hdr->start_dma_cmd);
2880         if (rval)
2881                 goto error_exit;
2882 
2883         /* Wait for dma operation to complete. */
2884         for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) {
2885                 rval = qla8044_rd_reg_indirect(vha,
2886                     (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2887                     &cmd_sts_and_cntrl);
2888                 if (rval)
2889                         goto error_exit;
2890 
2891                 if ((cmd_sts_and_cntrl & BIT_1) == 0)
2892                         break;
2893 
2894                 udelay(10);
2895         }
2896 
2897         /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2898         if (wait >= ISP8044_PEX_DMA_MAX_WAIT) {
2899                 rval = QLA_FUNCTION_FAILED;
2900                 goto error_exit;
2901         }
2902 
2903 error_exit:
2904         return rval;
2905 }
2906 
2907 static int
2908 qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha,
2909         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2910 {
2911         struct qla_hw_data *ha = vha->hw;
2912         int rval = QLA_SUCCESS;
2913         struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2914         uint32_t chunk_size, read_size;
2915         uint8_t *data_ptr = (uint8_t *)*d_ptr;
2916         void *rdmem_buffer = NULL;
2917         dma_addr_t rdmem_dma;
2918         struct qla8044_pex_dma_descriptor dma_desc;
2919 
2920         rval = qla8044_check_dma_engine_state(vha);
2921         if (rval != QLA_SUCCESS) {
2922                 ql_dbg(ql_dbg_p3p, vha, 0xb147,
2923                     "DMA engine not available. Fallback to rdmem-read.\n");
2924                 return QLA_FUNCTION_FAILED;
2925         }
2926 
2927         m_hdr = (void *)entry_hdr;
2928 
2929         rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2930             ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL);
2931         if (!rdmem_buffer) {
2932                 ql_dbg(ql_dbg_p3p, vha, 0xb148,
2933                     "Unable to allocate rdmem dma buffer\n");
2934                 return QLA_FUNCTION_FAILED;
2935         }
2936 
2937         /* Prepare pex-dma descriptor to be written to MS memory. */
2938         /* dma-desc-cmd layout:
2939          *              0-3: dma-desc-cmd 0-3
2940          *              4-7: pcid function number
2941          *              8-15: dma-desc-cmd 8-15
2942          * dma_bus_addr: dma buffer address
2943          * cmd.read_data_size: amount of data-chunk to be read.
2944          */
2945         dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2946         dma_desc.cmd.dma_desc_cmd |=
2947             ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2948 
2949         dma_desc.dma_bus_addr = rdmem_dma;
2950         dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE;
2951         read_size = 0;
2952 
2953         /*
2954          * Perform rdmem operation using pex-dma.
2955          * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE.
2956          */
2957         while (read_size < m_hdr->read_data_size) {
2958                 if (m_hdr->read_data_size - read_size <
2959                     ISP8044_PEX_DMA_READ_SIZE) {
2960                         chunk_size = (m_hdr->read_data_size - read_size);
2961                         dma_desc.cmd.read_data_size = chunk_size;
2962                 }
2963 
2964                 dma_desc.src_addr = m_hdr->read_addr + read_size;
2965 
2966                 /* Prepare: Write pex-dma descriptor to MS memory. */
2967                 rval = qla8044_ms_mem_write_128b(vha,
2968                     m_hdr->desc_card_addr, (void *)&dma_desc,
2969                     (sizeof(struct qla8044_pex_dma_descriptor)/16));
2970                 if (rval) {
2971                         ql_log(ql_log_warn, vha, 0xb14a,
2972                             "%s: Error writing rdmem-dma-init to MS !!!\n",
2973                             __func__);
2974                         goto error_exit;
2975                 }
2976                 ql_dbg(ql_dbg_p3p, vha, 0xb14b,
2977                     "%s: Dma-descriptor: Instruct for rdmem dma "
2978                     "(chunk_size 0x%x).\n", __func__, chunk_size);
2979 
2980                 /* Execute: Start pex-dma operation. */
2981                 rval = qla8044_start_pex_dma(vha, m_hdr);
2982                 if (rval)
2983                         goto error_exit;
2984 
2985                 memcpy(data_ptr, rdmem_buffer, chunk_size);
2986                 data_ptr += chunk_size;
2987                 read_size += chunk_size;
2988         }
2989 
2990         *d_ptr = (void *)data_ptr;
2991 
2992 error_exit:
2993         if (rdmem_buffer)
2994                 dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE,
2995                     rdmem_buffer, rdmem_dma);
2996 
2997         return rval;
2998 }
2999 
3000 static uint32_t
3001 qla8044_minidump_process_rddfe(struct scsi_qla_host *vha,
3002         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3003 {
3004         int loop_cnt;
3005         uint32_t addr1, addr2, value, data, temp, wrVal;
3006         uint8_t stride, stride2;
3007         uint16_t count;
3008         uint32_t poll, mask, modify_mask;
3009         uint32_t wait_count = 0;
3010         uint32_t *data_ptr = *d_ptr;
3011         struct qla8044_minidump_entry_rddfe *rddfe;
3012 
3013         rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr;
3014 
3015         addr1 = rddfe->addr_1;
3016         value = rddfe->value;
3017         stride = rddfe->stride;
3018         stride2 = rddfe->stride2;
3019         count = rddfe->count;
3020 
3021         poll = rddfe->poll;
3022         mask = rddfe->mask;
3023         modify_mask = rddfe->modify_mask;
3024 
3025         addr2 = addr1 + stride;
3026 
3027         for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
3028                 qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value));
3029 
3030                 wait_count = 0;
3031                 while (wait_count < poll) {
3032                         qla8044_rd_reg_indirect(vha, addr1, &temp);
3033                         if ((temp & mask) != 0)
3034                                 break;
3035                         wait_count++;
3036                 }
3037 
3038                 if (wait_count == poll) {
3039                         ql_log(ql_log_warn, vha, 0xb153,
3040                             "%s: TIMEOUT\n", __func__);
3041                         goto error;
3042                 } else {
3043                         qla8044_rd_reg_indirect(vha, addr2, &temp);
3044                         temp = temp & modify_mask;
3045                         temp = (temp | ((loop_cnt << 16) | loop_cnt));
3046                         wrVal = ((temp << 16) | temp);
3047 
3048                         qla8044_wr_reg_indirect(vha, addr2, wrVal);
3049                         qla8044_wr_reg_indirect(vha, addr1, value);
3050 
3051                         wait_count = 0;
3052                         while (wait_count < poll) {
3053                                 qla8044_rd_reg_indirect(vha, addr1, &temp);
3054                                 if ((temp & mask) != 0)
3055                                         break;
3056                                 wait_count++;
3057                         }
3058                         if (wait_count == poll) {
3059                                 ql_log(ql_log_warn, vha, 0xb154,
3060                                     "%s: TIMEOUT\n", __func__);
3061                                 goto error;
3062                         }
3063 
3064                         qla8044_wr_reg_indirect(vha, addr1,
3065                             ((0x40000000 | value) + stride2));
3066                         wait_count = 0;
3067                         while (wait_count < poll) {
3068                                 qla8044_rd_reg_indirect(vha, addr1, &temp);
3069                                 if ((temp & mask) != 0)
3070                                         break;
3071                                 wait_count++;
3072                         }
3073 
3074                         if (wait_count == poll) {
3075                                 ql_log(ql_log_warn, vha, 0xb155,
3076                                     "%s: TIMEOUT\n", __func__);
3077                                 goto error;
3078                         }
3079 
3080                         qla8044_rd_reg_indirect(vha, addr2, &data);
3081 
3082                         *data_ptr++ = wrVal;
3083                         *data_ptr++ = data;
3084                 }
3085 
3086         }
3087 
3088         *d_ptr = data_ptr;
3089         return QLA_SUCCESS;
3090 
3091 error:
3092         return -1;
3093 
3094 }
3095 
3096 static uint32_t
3097 qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha,
3098         struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3099 {
3100         int ret = 0;
3101         uint32_t addr1, addr2, value1, value2, data, selVal;
3102         uint8_t stride1, stride2;
3103         uint32_t addr3, addr4, addr5, addr6, addr7;
3104         uint16_t count, loop_cnt;
3105         uint32_t mask;
3106         uint32_t *data_ptr = *d_ptr;
3107 
3108         struct qla8044_minidump_entry_rdmdio *rdmdio;
3109 
3110         rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr;
3111 
3112         addr1 = rdmdio->addr_1;
3113         addr2 = rdmdio->addr_2;
3114         value1 = rdmdio->value_1;
3115         stride1 = rdmdio->stride_1;
3116         stride2 = rdmdio->stride_2;
3117         count = rdmdio->count;
3118 
3119         mask = rdmdio->mask;
3120         value2 = rdmdio->value_2;
3121 
3122         addr3 = addr1 + stride1;
3123 
3124         for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
3125                 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3126                     addr3, mask);
3127                 if (ret == -1)
3128                         goto error;
3129 
3130                 addr4 = addr2 - stride1;
3131                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4,
3132                     value2);
3133                 if (ret == -1)
3134                         goto error;
3135 
3136                 addr5 = addr2 - (2 * stride1);
3137                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5,
3138                     value1);
3139                 if (ret == -1)
3140                         goto error;
3141 
3142                 addr6 = addr2 - (3 * stride1);
3143                 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask,
3144                     addr6, 0x2);
3145                 if (ret == -1)
3146                         goto error;
3147 
3148                 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3149                     addr3, mask);
3150                 if (ret == -1)
3151                         goto error;
3152 
3153                 addr7 = addr2 - (4 * stride1);
3154                 data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7);
3155                 if (data == -1)
3156                         goto error;
3157 
3158                 selVal = (value2 << 18) | (value1 << 2) | 2;
3159 
3160                 stride2 = rdmdio->stride_2;
3161                 *data_ptr++ = selVal;
3162                 *data_ptr++ = data;
3163 
3164                 value1 = value1 + stride2;
3165                 *d_ptr = data_ptr;
3166         }
3167 
3168         return 0;
3169 
3170 error:
3171         return -1;
3172 }
3173 
3174 static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha,
3175                 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3176 {
3177         uint32_t addr1, addr2, value1, value2, poll, r_value;
3178         uint32_t wait_count = 0;
3179         struct qla8044_minidump_entry_pollwr *pollwr_hdr;
3180 
3181         pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
3182         addr1 = pollwr_hdr->addr_1;
3183         addr2 = pollwr_hdr->addr_2;
3184         value1 = pollwr_hdr->value_1;
3185         value2 = pollwr_hdr->value_2;
3186 
3187         poll = pollwr_hdr->poll;
3188 
3189         while (wait_count < poll) {
3190                 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3191 
3192                 if ((r_value & poll) != 0)
3193                         break;
3194                 wait_count++;
3195         }
3196 
3197         if (wait_count == poll) {
3198                 ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__);
3199                 goto error;
3200         }
3201 
3202         qla8044_wr_reg_indirect(vha, addr2, value2);
3203         qla8044_wr_reg_indirect(vha, addr1, value1);
3204 
3205         wait_count = 0;
3206         while (wait_count < poll) {
3207                 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3208 
3209                 if ((r_value & poll) != 0)
3210                         break;
3211                 wait_count++;
3212         }
3213 
3214         return QLA_SUCCESS;
3215 
3216 error:
3217         return -1;
3218 }
3219 
3220 /*
3221  *
3222  * qla8044_collect_md_data - Retrieve firmware minidump data.
3223  * @ha: pointer to adapter structure
3224  **/
3225 int
3226 qla8044_collect_md_data(struct scsi_qla_host *vha)
3227 {
3228         int num_entry_hdr = 0;
3229         struct qla8044_minidump_entry_hdr *entry_hdr;
3230         struct qla8044_minidump_template_hdr *tmplt_hdr;
3231         uint32_t *data_ptr;
3232         uint32_t data_collected = 0, f_capture_mask;
3233         int i, rval = QLA_FUNCTION_FAILED;
3234         uint64_t now;
3235         uint32_t timestamp, idc_control;
3236         struct qla_hw_data *ha = vha->hw;
3237 
3238         if (!ha->md_dump) {
3239                 ql_log(ql_log_info, vha, 0xb101,
3240                     "%s(%ld) No buffer to dump\n",
3241                     __func__, vha->host_no);
3242                 return rval;
3243         }
3244 
3245         if (ha->fw_dumped) {
3246                 ql_log(ql_log_warn, vha, 0xb10d,
3247                     "Firmware has been previously dumped (%p) "
3248                     "-- ignoring request.\n", ha->fw_dump);
3249                 goto md_failed;
3250         }
3251 
3252         ha->fw_dumped = 0;
3253 
3254         if (!ha->md_tmplt_hdr || !ha->md_dump) {
3255                 ql_log(ql_log_warn, vha, 0xb10e,
3256                     "Memory not allocated for minidump capture\n");
3257                 goto md_failed;
3258         }
3259 
3260         qla8044_idc_lock(ha);
3261         idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3262         if (idc_control & GRACEFUL_RESET_BIT1) {
3263                 ql_log(ql_log_warn, vha, 0xb112,
3264                     "Forced reset from application, "
3265                     "ignore minidump capture\n");
3266                 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
3267                     (idc_control & ~GRACEFUL_RESET_BIT1));
3268                 qla8044_idc_unlock(ha);
3269 
3270                 goto md_failed;
3271         }
3272         qla8044_idc_unlock(ha);
3273 
3274         if (qla82xx_validate_template_chksum(vha)) {
3275                 ql_log(ql_log_info, vha, 0xb109,
3276                     "Template checksum validation error\n");
3277                 goto md_failed;
3278         }
3279 
3280         tmplt_hdr = (struct qla8044_minidump_template_hdr *)
3281                 ha->md_tmplt_hdr;
3282         data_ptr = (uint32_t *)((uint8_t *)ha->md_dump);
3283         num_entry_hdr = tmplt_hdr->num_of_entries;
3284 
3285         ql_dbg(ql_dbg_p3p, vha, 0xb11a,
3286             "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
3287 
3288         f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
3289 
3290         /* Validate whether required debug level is set */
3291         if ((f_capture_mask & 0x3) != 0x3) {
3292                 ql_log(ql_log_warn, vha, 0xb10f,
3293                     "Minimum required capture mask[0x%x] level not set\n",
3294                     f_capture_mask);
3295 
3296         }
3297         tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
3298         ql_log(ql_log_info, vha, 0xb102,
3299             "[%s]: starting data ptr: %p\n",
3300            __func__, data_ptr);
3301         ql_log(ql_log_info, vha, 0xb10b,
3302            "[%s]: no of entry headers in Template: 0x%x\n",
3303            __func__, num_entry_hdr);
3304         ql_log(ql_log_info, vha, 0xb10c,
3305             "[%s]: Total_data_size 0x%x, %d obtained\n",
3306            __func__, ha->md_dump_size, ha->md_dump_size);
3307 
3308         /* Update current timestamp before taking dump */
3309         now = get_jiffies_64();
3310         timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3311         tmplt_hdr->driver_timestamp = timestamp;
3312 
3313         entry_hdr = (struct qla8044_minidump_entry_hdr *)
3314                 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
3315         tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] =
3316             tmplt_hdr->ocm_window_reg[ha->portnum];
3317 
3318         /* Walk through the entry headers - validate/perform required action */
3319         for (i = 0; i < num_entry_hdr; i++) {
3320                 if (data_collected > ha->md_dump_size) {
3321                         ql_log(ql_log_info, vha, 0xb103,
3322                             "Data collected: [0x%x], "
3323                             "Total Dump size: [0x%x]\n",
3324                             data_collected, ha->md_dump_size);
3325                         return rval;
3326                 }
3327 
3328                 if (!(entry_hdr->d_ctrl.entry_capture_mask &
3329                       ql2xmdcapmask)) {
3330                         entry_hdr->d_ctrl.driver_flags |=
3331                             QLA82XX_DBG_SKIPPED_FLAG;
3332                         goto skip_nxt_entry;
3333                 }
3334 
3335                 ql_dbg(ql_dbg_p3p, vha, 0xb104,
3336                     "Data collected: [0x%x], Dump size left:[0x%x]\n",
3337                     data_collected,
3338                     (ha->md_dump_size - data_collected));
3339 
3340                 /* Decode the entry type and take required action to capture
3341                  * debug data
3342                  */
3343                 switch (entry_hdr->entry_type) {
3344                 case QLA82XX_RDEND:
3345                         qla8044_mark_entry_skipped(vha, entry_hdr, i);
3346                         break;
3347                 case QLA82XX_CNTRL:
3348                         rval = qla8044_minidump_process_control(vha,
3349                             entry_hdr);
3350                         if (rval != QLA_SUCCESS) {
3351                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3352                                 goto md_failed;
3353                         }
3354                         break;
3355                 case QLA82XX_RDCRB:
3356                         qla8044_minidump_process_rdcrb(vha,
3357                             entry_hdr, &data_ptr);
3358                         break;
3359                 case QLA82XX_RDMEM:
3360                         rval = qla8044_minidump_pex_dma_read(vha,
3361                             entry_hdr, &data_ptr);
3362                         if (rval != QLA_SUCCESS) {
3363                                 rval = qla8044_minidump_process_rdmem(vha,
3364                                     entry_hdr, &data_ptr);
3365                                 if (rval != QLA_SUCCESS) {
3366                                         qla8044_mark_entry_skipped(vha,
3367                                             entry_hdr, i);
3368                                         goto md_failed;
3369                                 }
3370                         }
3371                         break;
3372                 case QLA82XX_BOARD:
3373                 case QLA82XX_RDROM:
3374                         rval = qla8044_minidump_process_rdrom(vha,
3375                             entry_hdr, &data_ptr);
3376                         if (rval != QLA_SUCCESS) {
3377                                 qla8044_mark_entry_skipped(vha,
3378                                     entry_hdr, i);
3379                         }
3380                         break;
3381                 case QLA82XX_L2DTG:
3382                 case QLA82XX_L2ITG:
3383                 case QLA82XX_L2DAT:
3384                 case QLA82XX_L2INS:
3385                         rval = qla8044_minidump_process_l2tag(vha,
3386                             entry_hdr, &data_ptr);
3387                         if (rval != QLA_SUCCESS) {
3388                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3389                                 goto md_failed;
3390                         }
3391                         break;
3392                 case QLA8044_L1DTG:
3393                 case QLA8044_L1ITG:
3394                 case QLA82XX_L1DAT:
3395                 case QLA82XX_L1INS:
3396                         qla8044_minidump_process_l1cache(vha,
3397                             entry_hdr, &data_ptr);
3398                         break;
3399                 case QLA82XX_RDOCM:
3400                         qla8044_minidump_process_rdocm(vha,
3401                             entry_hdr, &data_ptr);
3402                         break;
3403                 case QLA82XX_RDMUX:
3404                         qla8044_minidump_process_rdmux(vha,
3405                             entry_hdr, &data_ptr);
3406                         break;
3407                 case QLA82XX_QUEUE:
3408                         qla8044_minidump_process_queue(vha,
3409                             entry_hdr, &data_ptr);
3410                         break;
3411                 case QLA8044_POLLRD:
3412                         rval = qla8044_minidump_process_pollrd(vha,
3413                             entry_hdr, &data_ptr);
3414                         if (rval != QLA_SUCCESS)
3415                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3416                         break;
3417                 case QLA8044_RDMUX2:
3418                         qla8044_minidump_process_rdmux2(vha,
3419                             entry_hdr, &data_ptr);
3420                         break;
3421                 case QLA8044_POLLRDMWR:
3422                         rval = qla8044_minidump_process_pollrdmwr(vha,
3423                             entry_hdr, &data_ptr);
3424                         if (rval != QLA_SUCCESS)
3425                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3426                         break;
3427                 case QLA8044_RDDFE:
3428                         rval = qla8044_minidump_process_rddfe(vha, entry_hdr,
3429                             &data_ptr);
3430                         if (rval != QLA_SUCCESS)
3431                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3432                         break;
3433                 case QLA8044_RDMDIO:
3434                         rval = qla8044_minidump_process_rdmdio(vha, entry_hdr,
3435                             &data_ptr);
3436                         if (rval != QLA_SUCCESS)
3437                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3438                         break;
3439                 case QLA8044_POLLWR:
3440                         rval = qla8044_minidump_process_pollwr(vha, entry_hdr,
3441                             &data_ptr);
3442                         if (rval != QLA_SUCCESS)
3443                                 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3444                         break;
3445                 case QLA82XX_RDNOP:
3446                 default:
3447                         qla8044_mark_entry_skipped(vha, entry_hdr, i);
3448                         break;
3449                 }
3450 
3451                 data_collected = (uint8_t *)data_ptr -
3452                     (uint8_t *)((uint8_t *)ha->md_dump);
3453 skip_nxt_entry:
3454                 /*
3455                  * next entry in the template
3456                  */
3457                 entry_hdr = (struct qla8044_minidump_entry_hdr *)
3458                     (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
3459         }
3460 
3461         if (data_collected != ha->md_dump_size) {
3462                 ql_log(ql_log_info, vha, 0xb105,
3463                     "Dump data mismatch: Data collected: "
3464                     "[0x%x], total_data_size:[0x%x]\n",
3465                     data_collected, ha->md_dump_size);
3466                 rval = QLA_FUNCTION_FAILED;
3467                 goto md_failed;
3468         }
3469 
3470         ql_log(ql_log_info, vha, 0xb110,
3471             "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
3472             vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
3473         ha->fw_dumped = 1;
3474         qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
3475 
3476 
3477         ql_log(ql_log_info, vha, 0xb106,
3478             "Leaving fn: %s Last entry: 0x%x\n",
3479             __func__, i);
3480 md_failed:
3481         return rval;
3482 }
3483 
3484 void
3485 qla8044_get_minidump(struct scsi_qla_host *vha)
3486 {
3487         struct qla_hw_data *ha = vha->hw;
3488 
3489         if (!qla8044_collect_md_data(vha)) {
3490                 ha->fw_dumped = 1;
3491                 ha->prev_minidump_failed = 0;
3492         } else {
3493                 ql_log(ql_log_fatal, vha, 0xb0db,
3494                     "%s: Unable to collect minidump\n",
3495                     __func__);
3496                 ha->prev_minidump_failed = 1;
3497         }
3498 }
3499 
3500 static int
3501 qla8044_poll_flash_status_reg(struct scsi_qla_host *vha)
3502 {
3503         uint32_t flash_status;
3504         int retries = QLA8044_FLASH_READ_RETRY_COUNT;
3505         int ret_val = QLA_SUCCESS;
3506 
3507         while (retries--) {
3508                 ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS,
3509                     &flash_status);
3510                 if (ret_val) {
3511                         ql_log(ql_log_warn, vha, 0xb13c,
3512                             "%s: Failed to read FLASH_STATUS reg.\n",
3513                             __func__);
3514                         break;
3515                 }
3516                 if ((flash_status & QLA8044_FLASH_STATUS_READY) ==
3517                     QLA8044_FLASH_STATUS_READY)
3518                         break;
3519                 msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY);
3520         }
3521 
3522         if (!retries)
3523                 ret_val = QLA_FUNCTION_FAILED;
3524 
3525         return ret_val;
3526 }
3527 
3528 static int
3529 qla8044_write_flash_status_reg(struct scsi_qla_host *vha,
3530                                uint32_t data)
3531 {
3532         int ret_val = QLA_SUCCESS;
3533         uint32_t cmd;
3534 
3535         cmd = vha->hw->fdt_wrt_sts_reg_cmd;
3536 
3537         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3538             QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd);
3539         if (ret_val) {
3540                 ql_log(ql_log_warn, vha, 0xb125,
3541                     "%s: Failed to write to FLASH_ADDR.\n", __func__);
3542                 goto exit_func;
3543         }
3544 
3545         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data);
3546         if (ret_val) {
3547                 ql_log(ql_log_warn, vha, 0xb126,
3548                     "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3549                 goto exit_func;
3550         }
3551 
3552         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3553             QLA8044_FLASH_SECOND_ERASE_MS_VAL);
3554         if (ret_val) {
3555                 ql_log(ql_log_warn, vha, 0xb127,
3556                     "%s: Failed to write to FLASH_CONTROL.\n", __func__);
3557                 goto exit_func;
3558         }
3559 
3560         ret_val = qla8044_poll_flash_status_reg(vha);
3561         if (ret_val)
3562                 ql_log(ql_log_warn, vha, 0xb128,
3563                     "%s: Error polling flash status reg.\n", __func__);
3564 
3565 exit_func:
3566         return ret_val;
3567 }
3568 
3569 /*
3570  * This function assumes that the flash lock is held.
3571  */
3572 static int
3573 qla8044_unprotect_flash(scsi_qla_host_t *vha)
3574 {
3575         int ret_val;
3576         struct qla_hw_data *ha = vha->hw;
3577 
3578         ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable);
3579         if (ret_val)
3580                 ql_log(ql_log_warn, vha, 0xb139,
3581                     "%s: Write flash status failed.\n", __func__);
3582 
3583         return ret_val;
3584 }
3585 
3586 /*
3587  * This function assumes that the flash lock is held.
3588  */
3589 static int
3590 qla8044_protect_flash(scsi_qla_host_t *vha)
3591 {
3592         int ret_val;
3593         struct qla_hw_data *ha = vha->hw;
3594 
3595         ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable);
3596         if (ret_val)
3597                 ql_log(ql_log_warn, vha, 0xb13b,
3598                     "%s: Write flash status failed.\n", __func__);
3599 
3600         return ret_val;
3601 }
3602 
3603 
3604 static int
3605 qla8044_erase_flash_sector(struct scsi_qla_host *vha,
3606                            uint32_t sector_start_addr)
3607 {
3608         uint32_t reversed_addr;
3609         int ret_val = QLA_SUCCESS;
3610 
3611         ret_val = qla8044_poll_flash_status_reg(vha);
3612         if (ret_val) {
3613                 ql_log(ql_log_warn, vha, 0xb12e,
3614                     "%s: Poll flash status after erase failed..\n", __func__);
3615         }
3616 
3617         reversed_addr = (((sector_start_addr & 0xFF) << 16) |
3618             (sector_start_addr & 0xFF00) |
3619             ((sector_start_addr & 0xFF0000) >> 16));
3620 
3621         ret_val = qla8044_wr_reg_indirect(vha,
3622             QLA8044_FLASH_WRDATA, reversed_addr);
3623         if (ret_val) {
3624                 ql_log(ql_log_warn, vha, 0xb12f,
3625                     "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3626         }
3627         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3628            QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd);
3629         if (ret_val) {
3630                 ql_log(ql_log_warn, vha, 0xb130,
3631                     "%s: Failed to write to FLASH_ADDR.\n", __func__);
3632         }
3633         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3634             QLA8044_FLASH_LAST_ERASE_MS_VAL);
3635         if (ret_val) {
3636                 ql_log(ql_log_warn, vha, 0xb131,
3637                     "%s: Failed write to FLASH_CONTROL.\n", __func__);
3638         }
3639         ret_val = qla8044_poll_flash_status_reg(vha);
3640         if (ret_val) {
3641                 ql_log(ql_log_warn, vha, 0xb132,
3642                     "%s: Poll flash status failed.\n", __func__);
3643         }
3644 
3645 
3646         return ret_val;
3647 }
3648 
3649 /*
3650  * qla8044_flash_write_u32 - Write data to flash
3651  *
3652  * @ha : Pointer to adapter structure
3653  * addr : Flash address to write to
3654  * p_data : Data to be written
3655  *
3656  * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
3657  *
3658  * NOTE: Lock should be held on entry
3659  */
3660 static int
3661 qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr,
3662                         uint32_t *p_data)
3663 {
3664         int ret_val = QLA_SUCCESS;
3665 
3666         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3667             0x00800000 | (addr >> 2));
3668         if (ret_val) {
3669                 ql_log(ql_log_warn, vha, 0xb134,
3670                     "%s: Failed write to FLASH_ADDR.\n", __func__);
3671                 goto exit_func;
3672         }
3673         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data);
3674         if (ret_val) {
3675                 ql_log(ql_log_warn, vha, 0xb135,
3676                     "%s: Failed write to FLASH_WRDATA.\n", __func__);
3677                 goto exit_func;
3678         }
3679         ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D);
3680         if (ret_val) {
3681                 ql_log(ql_log_warn, vha, 0xb136,
3682                     "%s: Failed write to FLASH_CONTROL.\n", __func__);
3683                 goto exit_func;
3684         }
3685         ret_val = qla8044_poll_flash_status_reg(vha);
3686         if (ret_val) {
3687                 ql_log(ql_log_warn, vha, 0xb137,
3688                     "%s: Poll flash status failed.\n", __func__);
3689         }
3690 
3691 exit_func:
3692         return ret_val;
3693 }
3694 
3695 static int
3696 qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3697                                 uint32_t faddr, uint32_t dwords)
3698 {
3699         int ret = QLA_FUNCTION_FAILED;
3700         uint32_t spi_val;
3701 
3702         if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS ||
3703             dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) {
3704                 ql_dbg(ql_dbg_user, vha, 0xb123,
3705                     "Got unsupported dwords = 0x%x.\n",
3706                     dwords);
3707                 return QLA_FUNCTION_FAILED;
3708         }
3709 
3710         qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val);
3711         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3712             spi_val | QLA8044_FLASH_SPI_CTL);
3713         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3714             QLA8044_FLASH_FIRST_TEMP_VAL);
3715 
3716         /* First DWORD write to FLASH_WRDATA */
3717         ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA,
3718             *dwptr++);
3719         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3720             QLA8044_FLASH_FIRST_MS_PATTERN);
3721 
3722         ret = qla8044_poll_flash_status_reg(vha);
3723         if (ret) {
3724                 ql_log(ql_log_warn, vha, 0xb124,
3725                     "%s: Failed.\n", __func__);
3726                 goto exit_func;
3727         }
3728 
3729         dwords--;
3730 
3731         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3732             QLA8044_FLASH_SECOND_TEMP_VAL);
3733 
3734 
3735         /* Second to N-1 DWORDS writes */
3736         while (dwords != 1) {
3737                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3738                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3739                     QLA8044_FLASH_SECOND_MS_PATTERN);
3740                 ret = qla8044_poll_flash_status_reg(vha);
3741                 if (ret) {
3742                         ql_log(ql_log_warn, vha, 0xb129,
3743                             "%s: Failed.\n", __func__);
3744                         goto exit_func;
3745                 }
3746                 dwords--;
3747         }
3748 
3749         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3750             QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2));
3751 
3752         /* Last DWORD write */
3753         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3754         qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3755             QLA8044_FLASH_LAST_MS_PATTERN);
3756         ret = qla8044_poll_flash_status_reg(vha);
3757         if (ret) {
3758                 ql_log(ql_log_warn, vha, 0xb12a,
3759                     "%s: Failed.\n", __func__);
3760                 goto exit_func;
3761         }
3762         qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val);
3763 
3764         if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) {
3765                 ql_log(ql_log_warn, vha, 0xb12b,
3766                     "%s: Failed.\n", __func__);
3767                 spi_val = 0;
3768                 /* Operation failed, clear error bit. */
3769                 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3770                     &spi_val);
3771                 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3772                     spi_val | QLA8044_FLASH_SPI_CTL);
3773         }
3774 exit_func:
3775         return ret;
3776 }
3777 
3778 static int
3779 qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3780                                uint32_t faddr, uint32_t dwords)
3781 {
3782         int ret = QLA_FUNCTION_FAILED;
3783         uint32_t liter;
3784 
3785         for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3786                 ret = qla8044_flash_write_u32(vha, faddr, dwptr);
3787                 if (ret) {
3788                         ql_dbg(ql_dbg_p3p, vha, 0xb141,
3789                             "%s: flash address=%x data=%x.\n", __func__,
3790                              faddr, *dwptr);
3791                         break;
3792                 }
3793         }
3794 
3795         return ret;
3796 }
3797 
3798 int
3799 qla8044_write_optrom_data(struct scsi_qla_host *vha, void *buf,
3800                           uint32_t offset, uint32_t length)
3801 {
3802         int rval = QLA_FUNCTION_FAILED, i, burst_iter_count;
3803         int dword_count, erase_sec_count;
3804         uint32_t erase_offset;
3805         uint8_t *p_cache, *p_src;
3806 
3807         erase_offset = offset;
3808 
3809         p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL);
3810         if (!p_cache)
3811                 return QLA_FUNCTION_FAILED;
3812 
3813         memcpy(p_cache, buf, length);
3814         p_src = p_cache;
3815         dword_count = length / sizeof(uint32_t);
3816         /* Since the offset and legth are sector aligned, it will be always
3817          * multiple of burst_iter_count (64)
3818          */
3819         burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS;
3820         erase_sec_count = length / QLA8044_SECTOR_SIZE;
3821 
3822         /* Suspend HBA. */
3823         scsi_block_requests(vha->host);
3824         /* Lock and enable write for whole operation. */
3825         qla8044_flash_lock(vha);
3826         qla8044_unprotect_flash(vha);
3827 
3828         /* Erasing the sectors */
3829         for (i = 0; i < erase_sec_count; i++) {
3830                 rval = qla8044_erase_flash_sector(vha, erase_offset);
3831                 ql_dbg(ql_dbg_user, vha, 0xb138,
3832                     "Done erase of sector=0x%x.\n",
3833                     erase_offset);
3834                 if (rval) {
3835                         ql_log(ql_log_warn, vha, 0xb121,
3836                             "Failed to erase the sector having address: "
3837                             "0x%x.\n", erase_offset);
3838                         goto out;
3839                 }
3840                 erase_offset += QLA8044_SECTOR_SIZE;
3841         }
3842         ql_dbg(ql_dbg_user, vha, 0xb13f,
3843             "Got write for addr = 0x%x length=0x%x.\n",
3844             offset, length);
3845 
3846         for (i = 0; i < burst_iter_count; i++) {
3847 
3848                 /* Go with write. */
3849                 rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src,
3850                     offset, QLA8044_MAX_OPTROM_BURST_DWORDS);
3851                 if (rval) {
3852                         /* Buffer Mode failed skip to dword mode */
3853                         ql_log(ql_log_warn, vha, 0xb122,
3854                             "Failed to write flash in buffer mode, "
3855                             "Reverting to slow-write.\n");
3856                         rval = qla8044_write_flash_dword_mode(vha,
3857                             (uint32_t *)p_src, offset,
3858                             QLA8044_MAX_OPTROM_BURST_DWORDS);
3859                 }
3860                 p_src +=  sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3861                 offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3862         }
3863         ql_dbg(ql_dbg_user, vha, 0xb133,
3864             "Done writing.\n");
3865 
3866 out:
3867         qla8044_protect_flash(vha);
3868         qla8044_flash_unlock(vha);
3869         scsi_unblock_requests(vha->host);
3870         kfree(p_cache);
3871 
3872         return rval;
3873 }
3874 
3875 #define LEG_INT_PTR_B31         (1 << 31)
3876 #define LEG_INT_PTR_B30         (1 << 30)
3877 #define PF_BITS_MASK            (0xF << 16)
3878 /**
3879  * qla8044_intr_handler() - Process interrupts for the ISP8044
3880  * @irq: interrupt number
3881  * @dev_id: SCSI driver HA context
3882  *
3883  * Called by system whenever the host adapter generates an interrupt.
3884  *
3885  * Returns handled flag.
3886  */
3887 irqreturn_t
3888 qla8044_intr_handler(int irq, void *dev_id)
3889 {
3890         scsi_qla_host_t *vha;
3891         struct qla_hw_data *ha;
3892         struct rsp_que *rsp;
3893         struct device_reg_82xx __iomem *reg;
3894         int             status = 0;
3895         unsigned long   flags;
3896         unsigned long   iter;
3897         uint32_t        stat;
3898         uint16_t        mb[8];
3899         uint32_t leg_int_ptr = 0, pf_bit;
3900 
3901         rsp = (struct rsp_que *) dev_id;
3902         if (!rsp) {
3903                 ql_log(ql_log_info, NULL, 0xb143,
3904                     "%s(): NULL response queue pointer\n", __func__);
3905                 return IRQ_NONE;
3906         }
3907         ha = rsp->hw;
3908         vha = pci_get_drvdata(ha->pdev);
3909 
3910         if (unlikely(pci_channel_offline(ha->pdev)))
3911                 return IRQ_HANDLED;
3912 
3913         leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3914 
3915         /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */
3916         if (!(leg_int_ptr & (LEG_INT_PTR_B31))) {
3917                 ql_dbg(ql_dbg_p3p, vha, 0xb144,
3918                     "%s: Legacy Interrupt Bit 31 not set, "
3919                     "spurious interrupt!\n", __func__);
3920                 return IRQ_NONE;
3921         }
3922 
3923         pf_bit = ha->portnum << 16;
3924         /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */
3925         if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) {
3926                 ql_dbg(ql_dbg_p3p, vha, 0xb145,
3927                     "%s: Incorrect function ID 0x%x in "
3928                     "legacy interrupt register, "
3929                     "ha->pf_bit = 0x%x\n", __func__,
3930                     (leg_int_ptr & (PF_BITS_MASK)), pf_bit);
3931                 return IRQ_NONE;
3932         }
3933 
3934         /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger
3935          * Control register and poll till Legacy Interrupt Pointer register
3936          * bit32 is 0.
3937          */
3938         qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0);
3939         do {
3940                 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3941                 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit)
3942                         break;
3943         } while (leg_int_ptr & (LEG_INT_PTR_B30));
3944 
3945         reg = &ha->iobase->isp82;
3946         spin_lock_irqsave(&ha->hardware_lock, flags);
3947         for (iter = 1; iter--; ) {
3948 
3949                 if (RD_REG_DWORD(&reg->host_int)) {
3950                         stat = RD_REG_DWORD(&reg->host_status);
3951                         if ((stat & HSRX_RISC_INT) == 0)
3952                                 break;
3953 
3954                         switch (stat & 0xff) {
3955                         case 0x1:
3956                         case 0x2:
3957                         case 0x10:
3958                         case 0x11:
3959                                 qla82xx_mbx_completion(vha, MSW(stat));
3960                                 status |= MBX_INTERRUPT;
3961                                 break;
3962                         case 0x12:
3963                                 mb[0] = MSW(stat);
3964                                 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
3965                                 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
3966                                 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
3967                                 qla2x00_async_event(vha, rsp, mb);
3968                                 break;
3969                         case 0x13:
3970                                 qla24xx_process_response_queue(vha, rsp);
3971                                 break;
3972                         default:
3973                                 ql_dbg(ql_dbg_p3p, vha, 0xb146,
3974                                     "Unrecognized interrupt type "
3975                                     "(%d).\n", stat & 0xff);
3976                                 break;
3977                         }
3978                 }
3979                 WRT_REG_DWORD(&reg->host_int, 0);
3980         }
3981 
3982         qla2x00_handle_mbx_completion(ha, status);
3983         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3984 
3985         return IRQ_HANDLED;
3986 }
3987 
3988 static int
3989 qla8044_idc_dontreset(struct qla_hw_data *ha)
3990 {
3991         uint32_t idc_ctrl;
3992 
3993         idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3994         return idc_ctrl & DONTRESET_BIT0;
3995 }
3996 
3997 static void
3998 qla8044_clear_rst_ready(scsi_qla_host_t *vha)
3999 {
4000         uint32_t drv_state;
4001 
4002         drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
4003 
4004         /*
4005          * For ISP8044, drv_active register has 1 bit per function,
4006          * shift 1 by func_num to set a bit for the function.
4007          * For ISP82xx, drv_active has 4 bits per function
4008          */
4009         drv_state &= ~(1 << vha->hw->portnum);
4010 
4011         ql_dbg(ql_dbg_p3p, vha, 0xb13d,
4012             "drv_state: 0x%08x\n", drv_state);
4013         qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
4014 }
4015 
4016 int
4017 qla8044_abort_isp(scsi_qla_host_t *vha)
4018 {
4019         int rval;
4020         uint32_t dev_state;
4021         struct qla_hw_data *ha = vha->hw;
4022 
4023         qla8044_idc_lock(ha);
4024         dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
4025 
4026         if (ql2xdontresethba)
4027                 qla8044_set_idc_dontreset(vha);
4028 
4029         /* If device_state is NEED_RESET, go ahead with
4030          * Reset,irrespective of ql2xdontresethba. This is to allow a
4031          * non-reset-owner to force a reset. Non-reset-owner sets
4032          * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset
4033          * and then forces a Reset by setting device_state to
4034          * NEED_RESET. */
4035         if (dev_state == QLA8XXX_DEV_READY) {
4036                 /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset
4037                  * recovery */
4038                 if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) {
4039                         ql_dbg(ql_dbg_p3p, vha, 0xb13e,
4040                             "Reset recovery disabled\n");
4041                         rval = QLA_FUNCTION_FAILED;
4042                         goto exit_isp_reset;
4043                 }
4044 
4045                 ql_dbg(ql_dbg_p3p, vha, 0xb140,
4046                     "HW State: NEED RESET\n");
4047                 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
4048                     QLA8XXX_DEV_NEED_RESET);
4049         }
4050 
4051         /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority
4052          * and which drivers are present. Unlike ISP82XX, the function setting
4053          * NEED_RESET, may not be the Reset owner. */
4054         qla83xx_reset_ownership(vha);
4055 
4056         qla8044_idc_unlock(ha);
4057         rval = qla8044_device_state_handler(vha);
4058         qla8044_idc_lock(ha);
4059         qla8044_clear_rst_ready(vha);
4060 
4061 exit_isp_reset:
4062         qla8044_idc_unlock(ha);
4063         if (rval == QLA_SUCCESS) {
4064                 ha->flags.isp82xx_fw_hung = 0;
4065                 ha->flags.nic_core_reset_hdlr_active = 0;
4066                 rval = qla82xx_restart_isp(vha);
4067         }
4068 
4069         return rval;
4070 }
4071 
4072 void
4073 qla8044_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
4074 {
4075         struct qla_hw_data *ha = vha->hw;
4076 
4077         if (!ha->allow_cna_fw_dump)
4078                 return;
4079 
4080         scsi_block_requests(vha->host);
4081         ha->flags.isp82xx_no_md_cap = 1;
4082         qla8044_idc_lock(ha);
4083         qla82xx_set_reset_owner(vha);
4084         qla8044_idc_unlock(ha);
4085         qla2x00_wait_for_chip_reset(vha);
4086         scsi_unblock_requests(vha->host);
4087 }
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/scsi/qla2xxx/qla_nx2.c

DEFINITIONS
