drivers/scsi/qla2xxx/qla_mr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include <linux/delay.h>
   9 #include <linux/pci.h>
  10 #include <linux/ratelimit.h>
  11 #include <linux/vmalloc.h>
  12 #include <scsi/scsi_tcq.h>
  13 #include <linux/utsname.h>
  14
  15
  16 /* QLAFX00 specific Mailbox implementation functions */
  17
  18 /*
  19  * qlafx00_mailbox_command
  20  *      Issue mailbox command and waits for completion.
  21  *
  22  * Input:
  23  *      ha = adapter block pointer.
  24  *      mcp = driver internal mbx struct pointer.
  25  *
  26  * Output:
  27  *      mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
  28  *
  29  * Returns:
  30  *      0 : QLA_SUCCESS = cmd performed success
  31  *      1 : QLA_FUNCTION_FAILED   (error encountered)
  32  *      6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
  33  *
  34  * Context:
  35  *      Kernel context.
  36  */
  37 static int
  38 qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
  39
  40 {
  41         int             rval;
  42         unsigned long    flags = 0;
  43         device_reg_t __iomem *reg;
  44         uint8_t         abort_active;
  45         uint8_t         io_lock_on;
  46         uint16_t        command = 0;
  47         uint32_t        *iptr;
  48         uint32_t __iomem *optr;
  49         uint32_t        cnt;
  50         uint32_t        mboxes;
  51         unsigned long   wait_time;
  52         struct qla_hw_data *ha = vha->hw;
  53         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
  54
  55         if (ha->pdev->error_state > pci_channel_io_frozen) {
  56                 ql_log(ql_log_warn, vha, 0x115c,
  57                     "error_state is greater than pci_channel_io_frozen, "
  58                     "exiting.\n");
  59                 return QLA_FUNCTION_TIMEOUT;
  60         }
  61
  62         if (vha->device_flags & DFLG_DEV_FAILED) {
  63                 ql_log(ql_log_warn, vha, 0x115f,
  64                     "Device in failed state, exiting.\n");
  65                 return QLA_FUNCTION_TIMEOUT;
  66         }
  67
  68         reg = ha->iobase;
  69         io_lock_on = base_vha->flags.init_done;
  70
  71         rval = QLA_SUCCESS;
  72         abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
  73
  74         if (ha->flags.pci_channel_io_perm_failure) {
  75                 ql_log(ql_log_warn, vha, 0x1175,
  76                     "Perm failure on EEH timeout MBX, exiting.\n");
  77                 return QLA_FUNCTION_TIMEOUT;
  78         }
  79
  80         if (ha->flags.isp82xx_fw_hung) {
  81                 /* Setting Link-Down error */
  82                 mcp->mb[0] = MBS_LINK_DOWN_ERROR;
  83                 ql_log(ql_log_warn, vha, 0x1176,
  84                     "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
  85                 rval = QLA_FUNCTION_FAILED;
  86                 goto premature_exit;
  87         }
  88
  89         /*
  90          * Wait for active mailbox commands to finish by waiting at most tov
  91          * seconds. This is to serialize actual issuing of mailbox cmds during
  92          * non ISP abort time.
  93          */
  94         if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
  95                 /* Timeout occurred. Return error. */
  96                 ql_log(ql_log_warn, vha, 0x1177,
  97                     "Cmd access timeout, cmd=0x%x, Exiting.\n",
  98                     mcp->mb[0]);
  99                 return QLA_FUNCTION_TIMEOUT;
 100         }
 101
 102         ha->flags.mbox_busy = 1;
 103         /* Save mailbox command for debug */
 104         ha->mcp32 = mcp;
 105
 106         ql_dbg(ql_dbg_mbx, vha, 0x1178,
 107             "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
 108
 109         spin_lock_irqsave(&ha->hardware_lock, flags);
 110
 111         /* Load mailbox registers. */
 112         optr = (uint32_t __iomem *)&reg->ispfx00.mailbox0;
 113
 114         iptr = mcp->mb;
 115         command = mcp->mb[0];
 116         mboxes = mcp->out_mb;
 117
 118         for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 119                 if (mboxes & BIT_0)
 120                         WRT_REG_DWORD(optr, *iptr);
 121
 122                 mboxes >>= 1;
 123                 optr++;
 124                 iptr++;
 125         }
 126
 127         /* Issue set host interrupt command to send cmd out. */
 128         ha->flags.mbox_int = 0;
 129         clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 130
 131         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
 132             (uint8_t *)mcp->mb, 16);
 133         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
 134             ((uint8_t *)mcp->mb + 0x10), 16);
 135         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
 136             ((uint8_t *)mcp->mb + 0x20), 8);
 137
 138         /* Unlock mbx registers and wait for interrupt */
 139         ql_dbg(ql_dbg_mbx, vha, 0x1179,
 140             "Going to unlock irq & waiting for interrupts. "
 141             "jiffies=%lx.\n", jiffies);
 142
 143         /* Wait for mbx cmd completion until timeout */
 144         if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 145                 set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 146
 147                 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 148                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 149
 150                 wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
 151         } else {
 152                 ql_dbg(ql_dbg_mbx, vha, 0x112c,
 153                     "Cmd=%x Polling Mode.\n", command);
 154
 155                 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 156                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 157
 158                 wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 159                 while (!ha->flags.mbox_int) {
 160                         if (time_after(jiffies, wait_time))
 161                                 break;
 162
 163                         /* Check for pending interrupts. */
 164                         qla2x00_poll(ha->rsp_q_map[0]);
 165
 166                         if (!ha->flags.mbox_int &&
 167                             !(IS_QLA2200(ha) &&
 168                             command == MBC_LOAD_RISC_RAM_EXTENDED))
 169                                 usleep_range(10000, 11000);
 170                 } /* while */
 171                 ql_dbg(ql_dbg_mbx, vha, 0x112d,
 172                     "Waited %d sec.\n",
 173                     (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 174         }
 175
 176         /* Check whether we timed out */
 177         if (ha->flags.mbox_int) {
 178                 uint32_t *iptr2;
 179
 180                 ql_dbg(ql_dbg_mbx, vha, 0x112e,
 181                     "Cmd=%x completed.\n", command);
 182
 183                 /* Got interrupt. Clear the flag. */
 184                 ha->flags.mbox_int = 0;
 185                 clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 186
 187                 if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 188                         rval = QLA_FUNCTION_FAILED;
 189
 190                 /* Load return mailbox registers. */
 191                 iptr2 = mcp->mb;
 192                 iptr = (uint32_t *)&ha->mailbox_out32[0];
 193                 mboxes = mcp->in_mb;
 194                 for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 195                         if (mboxes & BIT_0)
 196                                 *iptr2 = *iptr;
 197
 198                         mboxes >>= 1;
 199                         iptr2++;
 200                         iptr++;
 201                 }
 202         } else {
 203
 204                 rval = QLA_FUNCTION_TIMEOUT;
 205         }
 206
 207         ha->flags.mbox_busy = 0;
 208
 209         /* Clean up */
 210         ha->mcp32 = NULL;
 211
 212         if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 213                 ql_dbg(ql_dbg_mbx, vha, 0x113a,
 214                     "checking for additional resp interrupt.\n");
 215
 216                 /* polling mode for non isp_abort commands. */
 217                 qla2x00_poll(ha->rsp_q_map[0]);
 218         }
 219
 220         if (rval == QLA_FUNCTION_TIMEOUT &&
 221             mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 222                 if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 223                     ha->flags.eeh_busy) {
 224                         /* not in dpc. schedule it for dpc to take over. */
 225                         ql_dbg(ql_dbg_mbx, vha, 0x115d,
 226                             "Timeout, schedule isp_abort_needed.\n");
 227
 228                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 229                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 230                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 231
 232                                 ql_log(ql_log_info, base_vha, 0x115e,
 233                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 234                                     "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 235                                     "abort.\n", command, mcp->mb[0],
 236                                     ha->flags.eeh_busy);
 237                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 238                                 qla2xxx_wake_dpc(vha);
 239                         }
 240                 } else if (!abort_active) {
 241                         /* call abort directly since we are in the DPC thread */
 242                         ql_dbg(ql_dbg_mbx, vha, 0x1160,
 243                             "Timeout, calling abort_isp.\n");
 244
 245                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 246                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 247                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 248
 249                                 ql_log(ql_log_info, base_vha, 0x1161,
 250                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 251                                     "mb[0]=0x%x. Scheduling ISP abort ",
 252                                     command, mcp->mb[0]);
 253
 254                                 set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 255                                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 256                                 if (ha->isp_ops->abort_isp(vha)) {
 257                                         /* Failed. retry later. */
 258                                         set_bit(ISP_ABORT_NEEDED,
 259                                             &vha->dpc_flags);
 260                                 }
 261                                 clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 262                                 ql_dbg(ql_dbg_mbx, vha, 0x1162,
 263                                     "Finished abort_isp.\n");
 264                         }
 265                 }
 266         }
 267
 268 premature_exit:
 269         /* Allow next mbx cmd to come in. */
 270         complete(&ha->mbx_cmd_comp);
 271
 272         if (rval) {
 273                 ql_log(ql_log_warn, base_vha, 0x1163,
 274                     "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
 275                     "mb[3]=%x, cmd=%x ****.\n",
 276                     mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
 277         } else {
 278                 ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 279         }
 280
 281         return rval;
 282 }
 283
 284 /*
 285  * qlafx00_driver_shutdown
 286  *      Indicate a driver shutdown to firmware.
 287  *
 288  * Input:
 289  *      ha = adapter block pointer.
 290  *
 291  * Returns:
 292  *      local function return status code.
 293  *
 294  * Context:
 295  *      Kernel context.
 296  */
 297 static int
 298 qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
 299 {
 300         int rval;
 301         struct mbx_cmd_32 mc;
 302         struct mbx_cmd_32 *mcp = &mc;
 303
 304         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
 305             "Entered %s.\n", __func__);
 306
 307         mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
 308         mcp->out_mb = MBX_0;
 309         mcp->in_mb = MBX_0;
 310         if (tmo)
 311                 mcp->tov = tmo;
 312         else
 313                 mcp->tov = MBX_TOV_SECONDS;
 314         mcp->flags = 0;
 315         rval = qlafx00_mailbox_command(vha, mcp);
 316
 317         if (rval != QLA_SUCCESS) {
 318                 ql_dbg(ql_dbg_mbx, vha, 0x1167,
 319                     "Failed=%x.\n", rval);
 320         } else {
 321                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
 322                     "Done %s.\n", __func__);
 323         }
 324
 325         return rval;
 326 }
 327
 328 /*
 329  * qlafx00_get_firmware_state
 330  *      Get adapter firmware state.
 331  *
 332  * Input:
 333  *      ha = adapter block pointer.
 334  *      TARGET_QUEUE_LOCK must be released.
 335  *      ADAPTER_STATE_LOCK must be released.
 336  *
 337  * Returns:
 338  *      qla7xxx local function return status code.
 339  *
 340  * Context:
 341  *      Kernel context.
 342  */
 343 static int
 344 qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
 345 {
 346         int rval;
 347         struct mbx_cmd_32 mc;
 348         struct mbx_cmd_32 *mcp = &mc;
 349
 350         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
 351             "Entered %s.\n", __func__);
 352
 353         mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 354         mcp->out_mb = MBX_0;
 355         mcp->in_mb = MBX_1|MBX_0;
 356         mcp->tov = MBX_TOV_SECONDS;
 357         mcp->flags = 0;
 358         rval = qlafx00_mailbox_command(vha, mcp);
 359
 360         /* Return firmware states. */
 361         states[0] = mcp->mb[1];
 362
 363         if (rval != QLA_SUCCESS) {
 364                 ql_dbg(ql_dbg_mbx, vha, 0x116a,
 365                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 366         } else {
 367                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
 368                     "Done %s.\n", __func__);
 369         }
 370         return rval;
 371 }
 372
 373 /*
 374  * qlafx00_init_firmware
 375  *      Initialize adapter firmware.
 376  *
 377  * Input:
 378  *      ha = adapter block pointer.
 379  *      dptr = Initialization control block pointer.
 380  *      size = size of initialization control block.
 381  *      TARGET_QUEUE_LOCK must be released.
 382  *      ADAPTER_STATE_LOCK must be released.
 383  *
 384  * Returns:
 385  *      qlafx00 local function return status code.
 386  *
 387  * Context:
 388  *      Kernel context.
 389  */
 390 int
 391 qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
 392 {
 393         int rval;
 394         struct mbx_cmd_32 mc;
 395         struct mbx_cmd_32 *mcp = &mc;
 396         struct qla_hw_data *ha = vha->hw;
 397
 398         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
 399             "Entered %s.\n", __func__);
 400
 401         mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
 402
 403         mcp->mb[1] = 0;
 404         mcp->mb[2] = MSD(ha->init_cb_dma);
 405         mcp->mb[3] = LSD(ha->init_cb_dma);
 406
 407         mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
 408         mcp->in_mb = MBX_0;
 409         mcp->buf_size = size;
 410         mcp->flags = MBX_DMA_OUT;
 411         mcp->tov = MBX_TOV_SECONDS;
 412         rval = qlafx00_mailbox_command(vha, mcp);
 413
 414         if (rval != QLA_SUCCESS) {
 415                 ql_dbg(ql_dbg_mbx, vha, 0x116d,
 416                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 417         } else {
 418                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
 419                     "Done %s.\n", __func__);
 420         }
 421         return rval;
 422 }
 423
 424 /*
 425  * qlafx00_mbx_reg_test
 426  */
 427 static int
 428 qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
 429 {
 430         int rval;
 431         struct mbx_cmd_32 mc;
 432         struct mbx_cmd_32 *mcp = &mc;
 433
 434         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
 435             "Entered %s.\n", __func__);
 436
 437
 438         mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
 439         mcp->mb[1] = 0xAAAA;
 440         mcp->mb[2] = 0x5555;
 441         mcp->mb[3] = 0xAA55;
 442         mcp->mb[4] = 0x55AA;
 443         mcp->mb[5] = 0xA5A5;
 444         mcp->mb[6] = 0x5A5A;
 445         mcp->mb[7] = 0x2525;
 446         mcp->mb[8] = 0xBBBB;
 447         mcp->mb[9] = 0x6666;
 448         mcp->mb[10] = 0xBB66;
 449         mcp->mb[11] = 0x66BB;
 450         mcp->mb[12] = 0xB6B6;
 451         mcp->mb[13] = 0x6B6B;
 452         mcp->mb[14] = 0x3636;
 453         mcp->mb[15] = 0xCCCC;
 454
 455
 456         mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 457                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 458         mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 459                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 460         mcp->buf_size = 0;
 461         mcp->flags = MBX_DMA_OUT;
 462         mcp->tov = MBX_TOV_SECONDS;
 463         rval = qlafx00_mailbox_command(vha, mcp);
 464         if (rval == QLA_SUCCESS) {
 465                 if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
 466                     mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
 467                         rval = QLA_FUNCTION_FAILED;
 468                 if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
 469                     mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
 470                         rval = QLA_FUNCTION_FAILED;
 471                 if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
 472                     mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
 473                         rval = QLA_FUNCTION_FAILED;
 474                 if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
 475                     mcp->mb[31] != 0xCCCC)
 476                         rval = QLA_FUNCTION_FAILED;
 477         }
 478
 479         if (rval != QLA_SUCCESS) {
 480                 ql_dbg(ql_dbg_mbx, vha, 0x1170,
 481                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 482         } else {
 483                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
 484                     "Done %s.\n", __func__);
 485         }
 486         return rval;
 487 }
 488
 489 /**
 490  * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 491  * @ha: HA context
 492  *
 493  * Returns 0 on success.
 494  */
 495 int
 496 qlafx00_pci_config(scsi_qla_host_t *vha)
 497 {
 498         uint16_t w;
 499         struct qla_hw_data *ha = vha->hw;
 500
 501         pci_set_master(ha->pdev);
 502         pci_try_set_mwi(ha->pdev);
 503
 504         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 505         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 506         w &= ~PCI_COMMAND_INTX_DISABLE;
 507         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 508
 509         /* PCIe -- adjust Maximum Read Request Size (2048). */
 510         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 511                 pcie_set_readrq(ha->pdev, 2048);
 512
 513         ha->chip_revision = ha->pdev->revision;
 514
 515         return QLA_SUCCESS;
 516 }
 517
 518 /**
 519  * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 520  * @ha: HA context
 521  *
 522   */
 523 static inline void
 524 qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
 525 {
 526         unsigned long flags = 0;
 527         struct qla_hw_data *ha = vha->hw;
 528         int i, core;
 529         uint32_t cnt;
 530
 531         /* Set all 4 cores in reset */
 532         for (i = 0; i < 4; i++) {
 533                 QLAFX00_SET_HBA_SOC_REG(ha,
 534                     (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
 535         }
 536
 537         /* Set all 4 core Clock gating control */
 538         for (i = 0; i < 4; i++) {
 539                 QLAFX00_SET_HBA_SOC_REG(ha,
 540                     (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
 541         }
 542
 543         /* Reset all units in Fabric */
 544         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x11F0101));
 545
 546         /* Reset all interrupt control registers */
 547         for (i = 0; i < 115; i++) {
 548                 QLAFX00_SET_HBA_SOC_REG(ha,
 549                     (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
 550         }
 551
 552         /* Reset Timers control registers. per core */
 553         for (core = 0; core < 4; core++)
 554                 for (i = 0; i < 8; i++)
 555                         QLAFX00_SET_HBA_SOC_REG(ha,
 556                             (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
 557
 558         /* Reset per core IRQ ack register */
 559         for (core = 0; core < 4; core++)
 560                 QLAFX00_SET_HBA_SOC_REG(ha,
 561                     (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
 562
 563         /* Set Fabric control and config to defaults */
 564         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
 565         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
 566
 567         spin_lock_irqsave(&ha->hardware_lock, flags);
 568
 569         /* Kick in Fabric units */
 570         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
 571
 572         /* Kick in Core0 to start boot process */
 573         QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
 574
 575         /* Wait 10secs for soft-reset to complete. */
 576         for (cnt = 10; cnt; cnt--) {
 577                 msleep(1000);
 578                 barrier();
 579         }
 580         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 581 }
 582
 583 /**
 584  * qlafx00_soft_reset() - Soft Reset ISPFx00.
 585  * @ha: HA context
 586  *
 587  * Returns 0 on success.
 588  */
 589 void
 590 qlafx00_soft_reset(scsi_qla_host_t *vha)
 591 {
 592         struct qla_hw_data *ha = vha->hw;
 593
 594         if (unlikely(pci_channel_offline(ha->pdev) &&
 595             ha->flags.pci_channel_io_perm_failure))
 596                 return;
 597
 598         ha->isp_ops->disable_intrs(ha);
 599         qlafx00_soc_cpu_reset(vha);
 600         ha->isp_ops->enable_intrs(ha);
 601 }
 602
 603 /**
 604  * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 605  * @ha: HA context
 606  *
 607  * Returns 0 on success.
 608  */
 609 int
 610 qlafx00_chip_diag(scsi_qla_host_t *vha)
 611 {
 612         int rval = 0;
 613         struct qla_hw_data *ha = vha->hw;
 614         struct req_que *req = ha->req_q_map[0];
 615
 616         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 617
 618         rval = qlafx00_mbx_reg_test(vha);
 619         if (rval) {
 620                 ql_log(ql_log_warn, vha, 0x1165,
 621                     "Failed mailbox send register test\n");
 622         } else {
 623                 /* Flag a successful rval */
 624                 rval = QLA_SUCCESS;
 625         }
 626         return rval;
 627 }
 628
 629 void
 630 qlafx00_config_rings(struct scsi_qla_host *vha)
 631 {
 632         struct qla_hw_data *ha = vha->hw;
 633         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 634         struct init_cb_fx *icb;
 635         struct req_que *req = ha->req_q_map[0];
 636         struct rsp_que *rsp = ha->rsp_q_map[0];
 637
 638         /* Setup ring parameters in initialization control block. */
 639         icb = (struct init_cb_fx *)ha->init_cb;
 640         icb->request_q_outpointer = __constant_cpu_to_le16(0);
 641         icb->response_q_inpointer = __constant_cpu_to_le16(0);
 642         icb->request_q_length = cpu_to_le16(req->length);
 643         icb->response_q_length = cpu_to_le16(rsp->length);
 644         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
 645         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
 646         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
 647         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
 648
 649         WRT_REG_DWORD(&reg->req_q_in, 0);
 650         WRT_REG_DWORD(&reg->req_q_out, 0);
 651
 652         WRT_REG_DWORD(&reg->rsp_q_in, 0);
 653         WRT_REG_DWORD(&reg->rsp_q_out, 0);
 654
 655         /* PCI posting */
 656         RD_REG_DWORD(&reg->rsp_q_out);
 657 }
 658
 659 char *
 660 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 661 {
 662         struct qla_hw_data *ha = vha->hw;
 663         int pcie_reg;
 664
 665         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 666         if (pcie_reg) {
 667                 strcpy(str, "PCIe iSA");
 668                 return str;
 669         }
 670         return str;
 671 }
 672
 673 char *
 674 qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str)
 675 {
 676         struct qla_hw_data *ha = vha->hw;
 677
 678         sprintf(str, "%s", ha->mr.fw_version);
 679         return str;
 680 }
 681
 682 void
 683 qlafx00_enable_intrs(struct qla_hw_data *ha)
 684 {
 685         unsigned long flags = 0;
 686
 687         spin_lock_irqsave(&ha->hardware_lock, flags);
 688         ha->interrupts_on = 1;
 689         QLAFX00_ENABLE_ICNTRL_REG(ha);
 690         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 691 }
 692
 693 void
 694 qlafx00_disable_intrs(struct qla_hw_data *ha)
 695 {
 696         unsigned long flags = 0;
 697
 698         spin_lock_irqsave(&ha->hardware_lock, flags);
 699         ha->interrupts_on = 0;
 700         QLAFX00_DISABLE_ICNTRL_REG(ha);
 701         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 702 }
 703
 704 static void
 705 qlafx00_tmf_iocb_timeout(void *data)
 706 {
 707         srb_t *sp = (srb_t *)data;
 708         struct srb_iocb *tmf = &sp->u.iocb_cmd;
 709
 710         tmf->u.tmf.comp_status = CS_TIMEOUT;
 711         complete(&tmf->u.tmf.comp);
 712 }
 713
 714 static void
 715 qlafx00_tmf_sp_done(void *data, void *ptr, int res)
 716 {
 717         srb_t *sp = (srb_t *)ptr;
 718         struct srb_iocb *tmf = &sp->u.iocb_cmd;
 719
 720         complete(&tmf->u.tmf.comp);
 721 }
 722
 723 static int
 724 qlafx00_async_tm_cmd(fc_port_t *fcport, uint32_t flags,
 725                      uint32_t lun, uint32_t tag)
 726 {
 727         scsi_qla_host_t *vha = fcport->vha;
 728         struct srb_iocb *tm_iocb;
 729         srb_t *sp;
 730         int rval = QLA_FUNCTION_FAILED;
 731
 732         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 733         if (!sp)
 734                 goto done;
 735
 736         tm_iocb = &sp->u.iocb_cmd;
 737         sp->type = SRB_TM_CMD;
 738         sp->name = "tmf";
 739         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
 740         tm_iocb->u.tmf.flags = flags;
 741         tm_iocb->u.tmf.lun = lun;
 742         tm_iocb->u.tmf.data = tag;
 743         sp->done = qlafx00_tmf_sp_done;
 744         tm_iocb->timeout = qlafx00_tmf_iocb_timeout;
 745         init_completion(&tm_iocb->u.tmf.comp);
 746
 747         rval = qla2x00_start_sp(sp);
 748         if (rval != QLA_SUCCESS)
 749                 goto done_free_sp;
 750
 751         ql_dbg(ql_dbg_async, vha, 0x507b,
 752             "Task management command issued target_id=%x\n",
 753             fcport->tgt_id);
 754
 755         wait_for_completion(&tm_iocb->u.tmf.comp);
 756
 757         rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
 758             QLA_SUCCESS : QLA_FUNCTION_FAILED;
 759
 760 done_free_sp:
 761         sp->free(vha, sp);
 762 done:
 763         return rval;
 764 }
 765
 766 int
 767 qlafx00_abort_target(fc_port_t *fcport, unsigned int l, int tag)
 768 {
 769         return qlafx00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 770 }
 771
 772 int
 773 qlafx00_lun_reset(fc_port_t *fcport, unsigned int l, int tag)
 774 {
 775         return qlafx00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 776 }
 777
 778 int
 779 qlafx00_iospace_config(struct qla_hw_data *ha)
 780 {
 781         if (pci_request_selected_regions(ha->pdev, ha->bars,
 782             QLA2XXX_DRIVER_NAME)) {
 783                 ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 784                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 785                     pci_name(ha->pdev));
 786                 goto iospace_error_exit;
 787         }
 788
 789         /* Use MMIO operations for all accesses. */
 790         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 791                 ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 792                     "Invalid pci I/O region size (%s).\n",
 793                     pci_name(ha->pdev));
 794                 goto iospace_error_exit;
 795         }
 796         if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 797                 ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 798                     "Invalid PCI mem BAR0 region size (%s), aborting\n",
 799                         pci_name(ha->pdev));
 800                 goto iospace_error_exit;
 801         }
 802
 803         ha->cregbase =
 804             ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 805         if (!ha->cregbase) {
 806                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 807                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 808                 goto iospace_error_exit;
 809         }
 810
 811         if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 812                 ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 813                     "region #2 not an MMIO resource (%s), aborting\n",
 814                     pci_name(ha->pdev));
 815                 goto iospace_error_exit;
 816         }
 817         if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 818                 ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 819                     "Invalid PCI mem BAR2 region size (%s), aborting\n",
 820                         pci_name(ha->pdev));
 821                 goto iospace_error_exit;
 822         }
 823
 824         ha->iobase =
 825             ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 826         if (!ha->iobase) {
 827                 ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 828                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 829                 goto iospace_error_exit;
 830         }
 831
 832         /* Determine queue resources */
 833         ha->max_req_queues = ha->max_rsp_queues = 1;
 834
 835         ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 836             "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 837             ha->bars, ha->cregbase, ha->iobase);
 838
 839         return 0;
 840
 841 iospace_error_exit:
 842         return -ENOMEM;
 843 }
 844
 845 static void
 846 qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 847 {
 848         struct qla_hw_data *ha = vha->hw;
 849         struct req_que *req = ha->req_q_map[0];
 850         struct rsp_que *rsp = ha->rsp_q_map[0];
 851
 852         req->length_fx00 = req->length;
 853         req->ring_fx00 = req->ring;
 854         req->dma_fx00 = req->dma;
 855
 856         rsp->length_fx00 = rsp->length;
 857         rsp->ring_fx00 = rsp->ring;
 858         rsp->dma_fx00 = rsp->dma;
 859
 860         ql_dbg(ql_dbg_init, vha, 0x012d,
 861             "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 862             "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 863             req->length_fx00, (u64)req->dma_fx00);
 864
 865         ql_dbg(ql_dbg_init, vha, 0x012e,
 866             "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 867             "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 868             rsp->length_fx00, (u64)rsp->dma_fx00);
 869 }
 870
 871 static int
 872 qlafx00_config_queues(struct scsi_qla_host *vha)
 873 {
 874         struct qla_hw_data *ha = vha->hw;
 875         struct req_que *req = ha->req_q_map[0];
 876         struct rsp_que *rsp = ha->rsp_q_map[0];
 877         dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 878
 879         req->length = ha->req_que_len;
 880         req->ring = (void *)ha->iobase + ha->req_que_off;
 881         req->dma = bar2_hdl + ha->req_que_off;
 882         if ((!req->ring) || (req->length == 0)) {
 883                 ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 884                     "Unable to allocate memory for req_ring\n");
 885                 return QLA_FUNCTION_FAILED;
 886         }
 887
 888         ql_dbg(ql_dbg_init, vha, 0x0130,
 889             "req: %p req_ring pointer %p req len 0x%x "
 890             "req off 0x%x\n, req->dma: 0x%llx",
 891             req, req->ring, req->length,
 892             ha->req_que_off, (u64)req->dma);
 893
 894         rsp->length = ha->rsp_que_len;
 895         rsp->ring = (void *)ha->iobase + ha->rsp_que_off;
 896         rsp->dma = bar2_hdl + ha->rsp_que_off;
 897         if ((!rsp->ring) || (rsp->length == 0)) {
 898                 ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 899                     "Unable to allocate memory for rsp_ring\n");
 900                 return QLA_FUNCTION_FAILED;
 901         }
 902
 903         ql_dbg(ql_dbg_init, vha, 0x0132,
 904             "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 905             "rsp off 0x%x, rsp->dma: 0x%llx\n",
 906             rsp, rsp->ring, rsp->length,
 907             ha->rsp_que_off, (u64)rsp->dma);
 908
 909         return QLA_SUCCESS;
 910 }
 911
 912 static int
 913 qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 914 {
 915         int rval = 0;
 916         unsigned long wtime;
 917         uint16_t wait_time;     /* Wait time */
 918         struct qla_hw_data *ha = vha->hw;
 919         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 920         uint32_t aenmbx, aenmbx7 = 0;
 921         uint32_t state[5];
 922         bool done = false;
 923
 924         /* 30 seconds wait - Adjust if required */
 925         wait_time = 30;
 926
 927         /* wait time before firmware ready */
 928         wtime = jiffies + (wait_time * HZ);
 929         do {
 930                 aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 931                 barrier();
 932                 ql_dbg(ql_dbg_mbx, vha, 0x0133,
 933                     "aenmbx: 0x%x\n", aenmbx);
 934
 935                 switch (aenmbx) {
 936                 case MBA_FW_NOT_STARTED:
 937                 case MBA_FW_STARTING:
 938                         break;
 939
 940                 case MBA_SYSTEM_ERR:
 941                 case MBA_REQ_TRANSFER_ERR:
 942                 case MBA_RSP_TRANSFER_ERR:
 943                 case MBA_FW_INIT_FAILURE:
 944                         qlafx00_soft_reset(vha);
 945                         break;
 946
 947                 case MBA_FW_RESTART_CMPLT:
 948                         /* Set the mbx and rqstq intr code */
 949                         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 950                         ha->mbx_intr_code = MSW(aenmbx7);
 951                         ha->rqstq_intr_code = LSW(aenmbx7);
 952                         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 953                         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 954                         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 955                         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 956                         WRT_REG_DWORD(&reg->aenmailbox0, 0);
 957                         RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 958                         ql_dbg(ql_dbg_init, vha, 0x0134,
 959                             "f/w returned mbx_intr_code: 0x%x, "
 960                             "rqstq_intr_code: 0x%x\n",
 961                             ha->mbx_intr_code, ha->rqstq_intr_code);
 962                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 963                         rval = QLA_SUCCESS;
 964                         done = true;
 965                         break;
 966
 967                 default:
 968                         /* If fw is apparently not ready. In order to continue,
 969                          * we might need to issue Mbox cmd, but the problem is
 970                          * that the DoorBell vector values that come with the
 971                          * 8060 AEN are most likely gone by now (and thus no
 972                          * bell would be rung on the fw side when mbox cmd is
 973                          * issued). We have to therefore grab the 8060 AEN
 974                          * shadow regs (filled in by FW when the last 8060
 975                          * AEN was being posted).
 976                          * Do the following to determine what is needed in
 977                          * order to get the FW ready:
 978                          * 1. reload the 8060 AEN values from the shadow regs
 979                          * 2. clear int status to get rid of possible pending
 980                          *    interrupts
 981                          * 3. issue Get FW State Mbox cmd to determine fw state
 982                          * Set the mbx and rqstq intr code from Shadow Regs
 983                          */
 984                         aenmbx7 = RD_REG_DWORD(&reg->initval7);
 985                         ha->mbx_intr_code = MSW(aenmbx7);
 986                         ha->rqstq_intr_code = LSW(aenmbx7);
 987                         ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 988                         ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 989                         ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 990                         ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 991                         ql_dbg(ql_dbg_init, vha, 0x0135,
 992                             "f/w returned mbx_intr_code: 0x%x, "
 993                             "rqstq_intr_code: 0x%x\n",
 994                             ha->mbx_intr_code, ha->rqstq_intr_code);
 995                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 996
 997                         /* Get the FW state */
 998                         rval = qlafx00_get_firmware_state(vha, state);
 999                         if (rval != QLA_SUCCESS) {
1000                                 /* Retry if timer has not expired */
1001                                 break;
1002                         }
1003
1004                         if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1005                                 /* Firmware is waiting to be
1006                                  * initialized by driver
1007                                  */
1008                                 rval = QLA_SUCCESS;
1009                                 done = true;
1010                                 break;
1011                         }
1012
1013                         /* Issue driver shutdown and wait until f/w recovers.
1014                          * Driver should continue to poll until 8060 AEN is
1015                          * received indicating firmware recovery.
1016                          */
1017                         ql_dbg(ql_dbg_init, vha, 0x0136,
1018                             "Sending Driver shutdown fw_state 0x%x\n",
1019                             state[0]);
1020
1021                         rval = qlafx00_driver_shutdown(vha, 10);
1022                         if (rval != QLA_SUCCESS) {
1023                                 rval = QLA_FUNCTION_FAILED;
1024                                 break;
1025                         }
1026                         msleep(500);
1027
1028                         wtime = jiffies + (wait_time * HZ);
1029                         break;
1030                 }
1031
1032                 if (!done) {
1033                         if (time_after_eq(jiffies, wtime)) {
1034                                 ql_dbg(ql_dbg_init, vha, 0x0137,
1035                                     "Init f/w failed: aen[7]: 0x%x\n",
1036                                     RD_REG_DWORD(&reg->aenmailbox7));
1037                                 rval = QLA_FUNCTION_FAILED;
1038                                 done = true;
1039                                 break;
1040                         }
1041                         /* Delay for a while */
1042                         msleep(500);
1043                 }
1044         } while (!done);
1045
1046         if (rval)
1047                 ql_dbg(ql_dbg_init, vha, 0x0138,
1048                     "%s **** FAILED ****.\n", __func__);
1049         else
1050                 ql_dbg(ql_dbg_init, vha, 0x0139,
1051                     "%s **** SUCCESS ****.\n", __func__);
1052
1053         return rval;
1054 }
1055
1056 /*
1057  * qlafx00_fw_ready() - Waits for firmware ready.
1058  * @ha: HA context
1059  *
1060  * Returns 0 on success.
1061  */
1062 int
1063 qlafx00_fw_ready(scsi_qla_host_t *vha)
1064 {
1065         int             rval;
1066         unsigned long   wtime;
1067         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1068         uint32_t        state[5];
1069
1070         rval = QLA_SUCCESS;
1071
1072         wait_time = 10;
1073
1074         /* wait time before firmware ready */
1075         wtime = jiffies + (wait_time * HZ);
1076
1077         /* Wait for ISP to finish init */
1078         if (!vha->flags.init_done)
1079                 ql_dbg(ql_dbg_init, vha, 0x013a,
1080                     "Waiting for init to complete...\n");
1081
1082         do {
1083                 rval = qlafx00_get_firmware_state(vha, state);
1084
1085                 if (rval == QLA_SUCCESS) {
1086                         if (state[0] == FSTATE_FX00_INITIALIZED) {
1087                                 ql_dbg(ql_dbg_init, vha, 0x013b,
1088                                     "fw_state=%x\n", state[0]);
1089                                 rval = QLA_SUCCESS;
1090                                         break;
1091                         }
1092                 }
1093                 rval = QLA_FUNCTION_FAILED;
1094
1095                 if (time_after_eq(jiffies, wtime))
1096                         break;
1097
1098                 /* Delay for a while */
1099                 msleep(500);
1100
1101                 ql_dbg(ql_dbg_init, vha, 0x013c,
1102                     "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1103         } while (1);
1104
1105
1106         if (rval)
1107                 ql_dbg(ql_dbg_init, vha, 0x013d,
1108                     "Firmware ready **** FAILED ****.\n");
1109         else
1110                 ql_dbg(ql_dbg_init, vha, 0x013e,
1111                     "Firmware ready **** SUCCESS ****.\n");
1112
1113         return rval;
1114 }
1115
1116 static int
1117 qlafx00_find_all_targets(scsi_qla_host_t *vha,
1118         struct list_head *new_fcports)
1119 {
1120         int             rval;
1121         uint16_t        tgt_id;
1122         fc_port_t       *fcport, *new_fcport;
1123         int             found;
1124         struct qla_hw_data *ha = vha->hw;
1125
1126         rval = QLA_SUCCESS;
1127
1128         if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1129                 return QLA_FUNCTION_FAILED;
1130
1131         if ((atomic_read(&vha->loop_down_timer) ||
1132              STATE_TRANSITION(vha))) {
1133                 atomic_set(&vha->loop_down_timer, 0);
1134                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1135                 return QLA_FUNCTION_FAILED;
1136         }
1137
1138         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1139             "Listing Target bit map...\n");
1140         ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
1141             0x2089, (uint8_t *)ha->gid_list, 32);
1142
1143         /* Allocate temporary rmtport for any new rmtports discovered. */
1144         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1145         if (new_fcport == NULL)
1146                 return QLA_MEMORY_ALLOC_FAILED;
1147
1148         for_each_set_bit(tgt_id, (void *)ha->gid_list,
1149             QLAFX00_TGT_NODE_LIST_SIZE) {
1150
1151                 /* Send get target node info */
1152                 new_fcport->tgt_id = tgt_id;
1153                 rval = qlafx00_fx_disc(vha, new_fcport,
1154                     FXDISC_GET_TGT_NODE_INFO);
1155                 if (rval != QLA_SUCCESS) {
1156                         ql_log(ql_log_warn, vha, 0x208a,
1157                             "Target info scan failed -- assuming zero-entry "
1158                             "result...\n");
1159                         continue;
1160                 }
1161
1162                 /* Locate matching device in database. */
1163                 found = 0;
1164                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1165                         if (memcmp(new_fcport->port_name,
1166                             fcport->port_name, WWN_SIZE))
1167                                 continue;
1168
1169                         found++;
1170
1171                         /*
1172                          * If tgt_id is same and state FCS_ONLINE, nothing
1173                          * changed.
1174                          */
1175                         if (fcport->tgt_id == new_fcport->tgt_id &&
1176                             atomic_read(&fcport->state) == FCS_ONLINE)
1177                                 break;
1178
1179                         /*
1180                          * Tgt ID changed or device was marked to be updated.
1181                          */
1182                         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1183                             "TGT-ID Change(%s): Present tgt id: "
1184                             "0x%x state: 0x%x "
1185                             "wwnn = %llx wwpn = %llx.\n",
1186                             __func__, fcport->tgt_id,
1187                             atomic_read(&fcport->state),
1188                             (unsigned long long)wwn_to_u64(fcport->node_name),
1189                             (unsigned long long)wwn_to_u64(fcport->port_name));
1190
1191                         ql_log(ql_log_info, vha, 0x208c,
1192                             "TGT-ID Announce(%s): Discovered tgt "
1193                             "id 0x%x wwnn = %llx "
1194                             "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1195                             (unsigned long long)
1196                             wwn_to_u64(new_fcport->node_name),
1197                             (unsigned long long)
1198                             wwn_to_u64(new_fcport->port_name));
1199
1200                         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1201                                 fcport->old_tgt_id = fcport->tgt_id;
1202                                 fcport->tgt_id = new_fcport->tgt_id;
1203                                 ql_log(ql_log_info, vha, 0x208d,
1204                                    "TGT-ID: New fcport Added: %p\n", fcport);
1205                                 qla2x00_update_fcport(vha, fcport);
1206                         } else {
1207                                 ql_log(ql_log_info, vha, 0x208e,
1208                                     " Existing TGT-ID %x did not get "
1209                                     " offline event from firmware.\n",
1210                                     fcport->old_tgt_id);
1211                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1212                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1213                                 kfree(new_fcport);
1214                                 return rval;
1215                         }
1216                         break;
1217                 }
1218
1219                 if (found)
1220                         continue;
1221
1222                 /* If device was not in our fcports list, then add it. */
1223                 list_add_tail(&new_fcport->list, new_fcports);
1224
1225                 /* Allocate a new replacement fcport. */
1226                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1227                 if (new_fcport == NULL)
1228                         return QLA_MEMORY_ALLOC_FAILED;
1229         }
1230
1231         kfree(new_fcport);
1232         return rval;
1233 }
1234
1235 /*
1236  * qlafx00_configure_all_targets
1237  *      Setup target devices with node ID's.
1238  *
1239  * Input:
1240  *      ha = adapter block pointer.
1241  *
1242  * Returns:
1243  *      0 = success.
1244  *      BIT_0 = error
1245  */
1246 static int
1247 qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1248 {
1249         int rval;
1250         fc_port_t *fcport, *rmptemp;
1251         LIST_HEAD(new_fcports);
1252
1253         rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1254             FXDISC_GET_TGT_NODE_LIST);
1255         if (rval != QLA_SUCCESS) {
1256                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1257                 return rval;
1258         }
1259
1260         rval = qlafx00_find_all_targets(vha, &new_fcports);
1261         if (rval != QLA_SUCCESS) {
1262                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1263                 return rval;
1264         }
1265
1266         /*
1267          * Delete all previous devices marked lost.
1268          */
1269         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1270                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1271                         break;
1272
1273                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1274                         if (fcport->port_type != FCT_INITIATOR)
1275                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1276                 }
1277         }
1278
1279         /*
1280          * Add the new devices to our devices list.
1281          */
1282         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1283                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1284                         break;
1285
1286                 qla2x00_update_fcport(vha, fcport);
1287                 list_move_tail(&fcport->list, &vha->vp_fcports);
1288                 ql_log(ql_log_info, vha, 0x208f,
1289                     "Attach new target id 0x%x wwnn = %llx "
1290                     "wwpn = %llx.\n",
1291                     fcport->tgt_id,
1292                     (unsigned long long)wwn_to_u64(fcport->node_name),
1293                     (unsigned long long)wwn_to_u64(fcport->port_name));
1294         }
1295
1296         /* Free all new device structures not processed. */
1297         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1298                 list_del(&fcport->list);
1299                 kfree(fcport);
1300         }
1301
1302         return rval;
1303 }
1304
1305 /*
1306  * qlafx00_configure_devices
1307  *      Updates Fibre Channel Device Database with what is actually on loop.
1308  *
1309  * Input:
1310  *      ha                = adapter block pointer.
1311  *
1312  * Returns:
1313  *      0 = success.
1314  *      1 = error.
1315  *      2 = database was full and device was not configured.
1316  */
1317 int
1318 qlafx00_configure_devices(scsi_qla_host_t *vha)
1319 {
1320         int  rval;
1321         unsigned long flags, save_flags;
1322         rval = QLA_SUCCESS;
1323
1324         save_flags = flags = vha->dpc_flags;
1325
1326         ql_dbg(ql_dbg_disc, vha, 0x2090,
1327             "Configure devices -- dpc flags =0x%lx\n", flags);
1328
1329         rval = qlafx00_configure_all_targets(vha);
1330
1331         if (rval == QLA_SUCCESS) {
1332                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1333                         rval = QLA_FUNCTION_FAILED;
1334                 } else {
1335                         atomic_set(&vha->loop_state, LOOP_READY);
1336                         ql_log(ql_log_info, vha, 0x2091,
1337                             "Device Ready\n");
1338                 }
1339         }
1340
1341         if (rval) {
1342                 ql_dbg(ql_dbg_disc, vha, 0x2092,
1343                     "%s *** FAILED ***.\n", __func__);
1344         } else {
1345                 ql_dbg(ql_dbg_disc, vha, 0x2093,
1346                     "%s: exiting normally.\n", __func__);
1347         }
1348         return rval;
1349 }
1350
1351 static void
1352 qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha)
1353 {
1354         struct qla_hw_data *ha = vha->hw;
1355         fc_port_t *fcport;
1356
1357         vha->flags.online = 0;
1358         ha->flags.chip_reset_done = 0;
1359         ha->mr.fw_hbt_en = 0;
1360         clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1361         vha->qla_stats.total_isp_aborts++;
1362
1363         ql_log(ql_log_info, vha, 0x013f,
1364             "Performing ISP error recovery - ha = %p.\n", ha);
1365
1366         ha->isp_ops->reset_chip(vha);
1367
1368         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1369                 atomic_set(&vha->loop_state, LOOP_DOWN);
1370                 atomic_set(&vha->loop_down_timer,
1371                     QLAFX00_LOOP_DOWN_TIME);
1372         } else {
1373                 if (!atomic_read(&vha->loop_down_timer))
1374                         atomic_set(&vha->loop_down_timer,
1375                             QLAFX00_LOOP_DOWN_TIME);
1376         }
1377
1378         /* Clear all async request states across all VPs. */
1379         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1380                 fcport->flags = 0;
1381                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1382                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1383         }
1384
1385         if (!ha->flags.eeh_busy) {
1386                 /* Requeue all commands in outstanding command list. */
1387                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1388         }
1389
1390         qla2x00_free_irqs(vha);
1391         set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1392
1393         /* Clear the Interrupts */
1394         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1395
1396         ql_log(ql_log_info, vha, 0x0140,
1397             "%s Done done - ha=%p.\n", __func__, ha);
1398 }
1399
1400 /**
1401  * qlafx00_init_response_q_entries() - Initializes response queue entries.
1402  * @ha: HA context
1403  *
1404  * Beginning of request ring has initialization control block already built
1405  * by nvram config routine.
1406  *
1407  * Returns 0 on success.
1408  */
1409 void
1410 qlafx00_init_response_q_entries(struct rsp_que *rsp)
1411 {
1412         uint16_t cnt;
1413         response_t *pkt;
1414
1415         rsp->ring_ptr = rsp->ring;
1416         rsp->ring_index    = 0;
1417         rsp->status_srb = NULL;
1418         pkt = rsp->ring_ptr;
1419         for (cnt = 0; cnt < rsp->length; cnt++) {
1420                 pkt->signature = RESPONSE_PROCESSED;
1421                 WRT_REG_DWORD(&pkt->signature, RESPONSE_PROCESSED);
1422                 pkt++;
1423         }
1424 }
1425
1426 int
1427 qlafx00_rescan_isp(scsi_qla_host_t *vha)
1428 {
1429         uint32_t status = QLA_FUNCTION_FAILED;
1430         struct qla_hw_data *ha = vha->hw;
1431         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1432         uint32_t aenmbx7;
1433
1434         qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1435
1436         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1437         ha->mbx_intr_code = MSW(aenmbx7);
1438         ha->rqstq_intr_code = LSW(aenmbx7);
1439         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1440         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1441         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1442         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1443
1444         ql_dbg(ql_dbg_disc, vha, 0x2094,
1445             "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1446             " Req que offset 0x%x Rsp que offset 0x%x\n",
1447             ha->mbx_intr_code, ha->rqstq_intr_code,
1448             ha->req_que_off, ha->rsp_que_len);
1449
1450         /* Clear the Interrupts */
1451         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1452
1453         status = qla2x00_init_rings(vha);
1454         if (!status) {
1455                 vha->flags.online = 1;
1456
1457                 /* if no cable then assume it's good */
1458                 if ((vha->device_flags & DFLG_NO_CABLE))
1459                         status = 0;
1460                 /* Register system information */
1461                 if (qlafx00_fx_disc(vha,
1462                     &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1463                         ql_dbg(ql_dbg_disc, vha, 0x2095,
1464                             "failed to register host info\n");
1465         }
1466         scsi_unblock_requests(vha->host);
1467         return status;
1468 }
1469
1470 void
1471 qlafx00_timer_routine(scsi_qla_host_t *vha)
1472 {
1473         struct qla_hw_data *ha = vha->hw;
1474         uint32_t fw_heart_beat;
1475         uint32_t aenmbx0;
1476         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1477
1478         /* Check firmware health */
1479         if (ha->mr.fw_hbt_cnt)
1480                 ha->mr.fw_hbt_cnt--;
1481         else {
1482                 if ((!ha->flags.mr_reset_hdlr_active) &&
1483                     (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1484                     (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1485                     (ha->mr.fw_hbt_en)) {
1486                         fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1487                         if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1488                                 ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1489                                 ha->mr.fw_hbt_miss_cnt = 0;
1490                         } else {
1491                                 ha->mr.fw_hbt_miss_cnt++;
1492                                 if (ha->mr.fw_hbt_miss_cnt ==
1493                                     QLAFX00_HEARTBEAT_MISS_CNT) {
1494                                         set_bit(ISP_ABORT_NEEDED,
1495                                             &vha->dpc_flags);
1496                                         qla2xxx_wake_dpc(vha);
1497                                         ha->mr.fw_hbt_miss_cnt = 0;
1498                                 }
1499                         }
1500                 }
1501                 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1502         }
1503
1504         if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1505                 /* Reset recovery to be performed in timer routine */
1506                 aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1507                 if (ha->mr.fw_reset_timer_exp) {
1508                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1509                         qla2xxx_wake_dpc(vha);
1510                         ha->mr.fw_reset_timer_exp = 0;
1511                 } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1512                         /* Wake up DPC to rescan the targets */
1513                         set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1514                         clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1515                         qla2xxx_wake_dpc(vha);
1516                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1517                 } else if ((aenmbx0 == MBA_FW_STARTING) &&
1518                     (!ha->mr.fw_hbt_en)) {
1519                         ha->mr.fw_hbt_en = 1;
1520                 } else if (!ha->mr.fw_reset_timer_tick) {
1521                         if (aenmbx0 == ha->mr.old_aenmbx0_state)
1522                                 ha->mr.fw_reset_timer_exp = 1;
1523                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1524                 } else if (aenmbx0 == 0xFFFFFFFF) {
1525                         uint32_t data0, data1;
1526
1527                         data0 = QLAFX00_RD_REG(ha,
1528                             QLAFX00_BAR1_BASE_ADDR_REG);
1529                         data1 = QLAFX00_RD_REG(ha,
1530                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1531
1532                         data0 &= 0xffff0000;
1533                         data1 &= 0x0000ffff;
1534
1535                         QLAFX00_WR_REG(ha,
1536                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1537                             (data0 | data1));
1538                 } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1539                         ha->mr.fw_reset_timer_tick =
1540                             QLAFX00_MAX_RESET_INTERVAL;
1541                 }
1542                 ha->mr.old_aenmbx0_state = aenmbx0;
1543                 ha->mr.fw_reset_timer_tick--;
1544         }
1545 }
1546
1547 /*
1548  *  qlfx00a_reset_initialize
1549  *      Re-initialize after a iSA device reset.
1550  *
1551  * Input:
1552  *      ha  = adapter block pointer.
1553  *
1554  * Returns:
1555  *      0 = success
1556  */
1557 int
1558 qlafx00_reset_initialize(scsi_qla_host_t *vha)
1559 {
1560         struct qla_hw_data *ha = vha->hw;
1561
1562         if (vha->device_flags & DFLG_DEV_FAILED) {
1563                 ql_dbg(ql_dbg_init, vha, 0x0142,
1564                     "Device in failed state\n");
1565                 return QLA_SUCCESS;
1566         }
1567
1568         ha->flags.mr_reset_hdlr_active = 1;
1569
1570         if (vha->flags.online) {
1571                 scsi_block_requests(vha->host);
1572                 qlafx00_abort_isp_cleanup(vha);
1573         }
1574
1575         ql_log(ql_log_info, vha, 0x0143,
1576             "(%s): succeeded.\n", __func__);
1577         ha->flags.mr_reset_hdlr_active = 0;
1578         return QLA_SUCCESS;
1579 }
1580
1581 /*
1582  *  qlafx00_abort_isp
1583  *      Resets ISP and aborts all outstanding commands.
1584  *
1585  * Input:
1586  *      ha  = adapter block pointer.
1587  *
1588  * Returns:
1589  *      0 = success
1590  */
1591 int
1592 qlafx00_abort_isp(scsi_qla_host_t *vha)
1593 {
1594         struct qla_hw_data *ha = vha->hw;
1595
1596         if (vha->flags.online) {
1597                 if (unlikely(pci_channel_offline(ha->pdev) &&
1598                     ha->flags.pci_channel_io_perm_failure)) {
1599                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1600                         return QLA_SUCCESS;
1601                 }
1602
1603                 scsi_block_requests(vha->host);
1604                 qlafx00_abort_isp_cleanup(vha);
1605         }
1606
1607         ql_log(ql_log_info, vha, 0x0145,
1608             "(%s): succeeded.\n", __func__);
1609
1610         return QLA_SUCCESS;
1611 }
1612
1613 static inline fc_port_t*
1614 qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1615 {
1616         fc_port_t       *fcport;
1617
1618         /* Check for matching device in remote port list. */
1619         fcport = NULL;
1620         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1621                 if (fcport->tgt_id == tgt_id) {
1622                         ql_dbg(ql_dbg_async, vha, 0x5072,
1623                             "Matching fcport(%p) found with TGT-ID: 0x%x "
1624                             "and Remote TGT_ID: 0x%x\n",
1625                             fcport, fcport->tgt_id, tgt_id);
1626                         break;
1627                 }
1628         }
1629         return fcport;
1630 }
1631
1632 static void
1633 qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1634 {
1635         fc_port_t       *fcport;
1636
1637         ql_log(ql_log_info, vha, 0x5073,
1638             "Detach TGT-ID: 0x%x\n", tgt_id);
1639
1640         fcport = qlafx00_get_fcport(vha, tgt_id);
1641         if (!fcport)
1642                 return;
1643
1644         qla2x00_mark_device_lost(vha, fcport, 0, 0);
1645
1646         return;
1647 }
1648
1649 int
1650 qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1651 {
1652         int rval = 0;
1653         uint32_t aen_code, aen_data;
1654
1655         aen_code = FCH_EVT_VENDOR_UNIQUE;
1656         aen_data = evt->u.aenfx.evtcode;
1657
1658         switch (evt->u.aenfx.evtcode) {
1659         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1660                 if (evt->u.aenfx.mbx[1] == 0) {
1661                         if (evt->u.aenfx.mbx[2] == 1) {
1662                                 if (!vha->flags.fw_tgt_reported)
1663                                         vha->flags.fw_tgt_reported = 1;
1664                                 atomic_set(&vha->loop_down_timer, 0);
1665                                 atomic_set(&vha->loop_state, LOOP_UP);
1666                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1667                                 qla2xxx_wake_dpc(vha);
1668                         } else if (evt->u.aenfx.mbx[2] == 2) {
1669                                 qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1670                         }
1671                 } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1672                         if (evt->u.aenfx.mbx[2] == 1) {
1673                                 if (!vha->flags.fw_tgt_reported)
1674                                         vha->flags.fw_tgt_reported = 1;
1675                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1676                         } else if (evt->u.aenfx.mbx[2] == 2) {
1677                                 vha->device_flags |= DFLG_NO_CABLE;
1678                                 qla2x00_mark_all_devices_lost(vha, 1);
1679                         }
1680                 }
1681                 break;
1682         case QLAFX00_MBA_LINK_UP:
1683                 aen_code = FCH_EVT_LINKUP;
1684                 aen_data = 0;
1685                 break;
1686         case QLAFX00_MBA_LINK_DOWN:
1687                 aen_code = FCH_EVT_LINKDOWN;
1688                 aen_data = 0;
1689                 break;
1690         }
1691
1692         fc_host_post_event(vha->host, fc_get_event_number(),
1693             aen_code, aen_data);
1694
1695         return rval;
1696 }
1697
1698 static void
1699 qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1700 {
1701         u64 port_name = 0, node_name = 0;
1702
1703         port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1704         node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1705
1706         fc_host_node_name(vha->host) = node_name;
1707         fc_host_port_name(vha->host) = port_name;
1708         if (!pinfo->port_type)
1709                 vha->hw->current_topology = ISP_CFG_F;
1710         if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1711                 atomic_set(&vha->loop_state, LOOP_READY);
1712         else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1713                 atomic_set(&vha->loop_state, LOOP_DOWN);
1714         vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1715 }
1716
1717 static void
1718 qla2x00_fxdisc_iocb_timeout(void *data)
1719 {
1720         srb_t *sp = (srb_t *)data;
1721         struct srb_iocb *lio = &sp->u.iocb_cmd;
1722
1723         complete(&lio->u.fxiocb.fxiocb_comp);
1724 }
1725
1726 static void
1727 qla2x00_fxdisc_sp_done(void *data, void *ptr, int res)
1728 {
1729         srb_t *sp = (srb_t *)ptr;
1730         struct srb_iocb *lio = &sp->u.iocb_cmd;
1731
1732         complete(&lio->u.fxiocb.fxiocb_comp);
1733 }
1734
1735 int
1736 qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t fx_type)
1737 {
1738         srb_t *sp;
1739         struct srb_iocb *fdisc;
1740         int rval = QLA_FUNCTION_FAILED;
1741         struct qla_hw_data *ha = vha->hw;
1742         struct host_system_info *phost_info;
1743         struct register_host_info *preg_hsi;
1744         struct new_utsname *p_sysid = NULL;
1745         struct timeval tv;
1746
1747         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1748         if (!sp)
1749                 goto done;
1750
1751         fdisc = &sp->u.iocb_cmd;
1752         switch (fx_type) {
1753         case FXDISC_GET_CONFIG_INFO:
1754         fdisc->u.fxiocb.flags =
1755                     SRB_FXDISC_RESP_DMA_VALID;
1756                 fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1757                 break;
1758         case FXDISC_GET_PORT_INFO:
1759                 fdisc->u.fxiocb.flags =
1760                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1761                 fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1762                 fdisc->u.fxiocb.req_data = fcport->port_id;
1763                 break;
1764         case FXDISC_GET_TGT_NODE_INFO:
1765                 fdisc->u.fxiocb.flags =
1766                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1767                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1768                 fdisc->u.fxiocb.req_data = fcport->tgt_id;
1769                 break;
1770         case FXDISC_GET_TGT_NODE_LIST:
1771                 fdisc->u.fxiocb.flags =
1772                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1773                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1774                 break;
1775         case FXDISC_REG_HOST_INFO:
1776                 fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1777                 fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1778                 p_sysid = utsname();
1779                 if (!p_sysid) {
1780                         ql_log(ql_log_warn, vha, 0x303c,
1781                             "Not able to get the system informtion\n");
1782                         goto done_free_sp;
1783                 }
1784                 break;
1785         default:
1786                 break;
1787         }
1788
1789         if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1790                 fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1791                     fdisc->u.fxiocb.req_len,
1792                     &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1793                 if (!fdisc->u.fxiocb.req_addr)
1794                         goto done_free_sp;
1795
1796                 if (fx_type == FXDISC_REG_HOST_INFO) {
1797                         preg_hsi = (struct register_host_info *)
1798                                 fdisc->u.fxiocb.req_addr;
1799                         phost_info = &preg_hsi->hsi;
1800                         memset(preg_hsi, 0, sizeof(struct register_host_info));
1801                         phost_info->os_type = OS_TYPE_LINUX;
1802                         strncpy(phost_info->sysname,
1803                             p_sysid->sysname, SYSNAME_LENGTH);
1804                         strncpy(phost_info->nodename,
1805                             p_sysid->nodename, NODENAME_LENGTH);
1806                         strncpy(phost_info->release,
1807                             p_sysid->release, RELEASE_LENGTH);
1808                         strncpy(phost_info->version,
1809                             p_sysid->version, VERSION_LENGTH);
1810                         strncpy(phost_info->machine,
1811                             p_sysid->machine, MACHINE_LENGTH);
1812                         strncpy(phost_info->domainname,
1813                             p_sysid->domainname, DOMNAME_LENGTH);
1814                         strncpy(phost_info->hostdriver,
1815                             QLA2XXX_VERSION, VERSION_LENGTH);
1816                         do_gettimeofday(&tv);
1817                         preg_hsi->utc = (uint64_t)tv.tv_sec;
1818                         ql_dbg(ql_dbg_init, vha, 0x0149,
1819                             "ISP%04X: Host registration with firmware\n",
1820                             ha->pdev->device);
1821                         ql_dbg(ql_dbg_init, vha, 0x014a,
1822                             "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1823                             phost_info->os_type,
1824                             phost_info->sysname,
1825                             phost_info->nodename);
1826                         ql_dbg(ql_dbg_init, vha, 0x014b,
1827                             "release = '%s', version = '%s'\n",
1828                             phost_info->release,
1829                             phost_info->version);
1830                         ql_dbg(ql_dbg_init, vha, 0x014c,
1831                             "machine = '%s' "
1832                             "domainname = '%s', hostdriver = '%s'\n",
1833                             phost_info->machine,
1834                             phost_info->domainname,
1835                             phost_info->hostdriver);
1836                         ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1837                             (uint8_t *)phost_info,
1838                             sizeof(struct host_system_info));
1839                 }
1840         }
1841
1842         if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1843                 fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1844                     fdisc->u.fxiocb.rsp_len,
1845                     &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1846                 if (!fdisc->u.fxiocb.rsp_addr)
1847                         goto done_unmap_req;
1848         }
1849
1850         sp->type = SRB_FXIOCB_DCMD;
1851         sp->name = "fxdisc";
1852         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1853         fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1854         fdisc->u.fxiocb.req_func_type = fx_type;
1855         sp->done = qla2x00_fxdisc_sp_done;
1856
1857         rval = qla2x00_start_sp(sp);
1858         if (rval != QLA_SUCCESS)
1859                 goto done_unmap_dma;
1860
1861         wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1862
1863         if (fx_type == FXDISC_GET_CONFIG_INFO) {
1864                 struct config_info_data *pinfo =
1865                     (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1866                 memcpy(&vha->hw->mr.product_name, pinfo->product_name,
1867                     sizeof(vha->hw->mr.product_name));
1868                 memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1869                     sizeof(vha->hw->mr.symbolic_name));
1870                 memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1871                     sizeof(vha->hw->mr.serial_num));
1872                 memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1873                     sizeof(vha->hw->mr.hw_version));
1874                 memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1875                     sizeof(vha->hw->mr.fw_version));
1876                 strim(vha->hw->mr.fw_version);
1877                 memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1878                     sizeof(vha->hw->mr.uboot_version));
1879                 memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1880                     sizeof(vha->hw->mr.fru_serial_num));
1881         } else if (fx_type == FXDISC_GET_PORT_INFO) {
1882                 struct port_info_data *pinfo =
1883                     (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1884                 memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1885                 memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1886                 vha->d_id.b.domain = pinfo->port_id[0];
1887                 vha->d_id.b.area = pinfo->port_id[1];
1888                 vha->d_id.b.al_pa = pinfo->port_id[2];
1889                 qlafx00_update_host_attr(vha, pinfo);
1890                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1891                     (uint8_t *)pinfo, 16);
1892         } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1893                 struct qlafx00_tgt_node_info *pinfo =
1894                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1895                 memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1896                 memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1897                 fcport->port_type = FCT_TARGET;
1898                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1899                     (uint8_t *)pinfo, 16);
1900         } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1901                 struct qlafx00_tgt_node_info *pinfo =
1902                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1903                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1904                     (uint8_t *)pinfo, 16);
1905                 memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1906         }
1907         rval = fdisc->u.fxiocb.result;
1908
1909 done_unmap_dma:
1910         if (fdisc->u.fxiocb.rsp_addr)
1911                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1912                     fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1913
1914 done_unmap_req:
1915         if (fdisc->u.fxiocb.req_addr)
1916                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
1917                     fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
1918 done_free_sp:
1919         sp->free(vha, sp);
1920 done:
1921         return rval;
1922 }
1923
1924 static void
1925 qlafx00_abort_iocb_timeout(void *data)
1926 {
1927         srb_t *sp = (srb_t *)data;
1928         struct srb_iocb *abt = &sp->u.iocb_cmd;
1929
1930         abt->u.abt.comp_status = CS_TIMEOUT;
1931         complete(&abt->u.abt.comp);
1932 }
1933
1934 static void
1935 qlafx00_abort_sp_done(void *data, void *ptr, int res)
1936 {
1937         srb_t *sp = (srb_t *)ptr;
1938         struct srb_iocb *abt = &sp->u.iocb_cmd;
1939
1940         complete(&abt->u.abt.comp);
1941 }
1942
1943 static int
1944 qlafx00_async_abt_cmd(srb_t *cmd_sp)
1945 {
1946         scsi_qla_host_t *vha = cmd_sp->fcport->vha;
1947         fc_port_t *fcport = cmd_sp->fcport;
1948         struct srb_iocb *abt_iocb;
1949         srb_t *sp;
1950         int rval = QLA_FUNCTION_FAILED;
1951
1952         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1953         if (!sp)
1954                 goto done;
1955
1956         abt_iocb = &sp->u.iocb_cmd;
1957         sp->type = SRB_ABT_CMD;
1958         sp->name = "abort";
1959         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1960         abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
1961         sp->done = qlafx00_abort_sp_done;
1962         abt_iocb->timeout = qlafx00_abort_iocb_timeout;
1963         init_completion(&abt_iocb->u.abt.comp);
1964
1965         rval = qla2x00_start_sp(sp);
1966         if (rval != QLA_SUCCESS)
1967                 goto done_free_sp;
1968
1969         ql_dbg(ql_dbg_async, vha, 0x507c,
1970             "Abort command issued - hdl=%x, target_id=%x\n",
1971             cmd_sp->handle, fcport->tgt_id);
1972
1973         wait_for_completion(&abt_iocb->u.abt.comp);
1974
1975         rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
1976             QLA_SUCCESS : QLA_FUNCTION_FAILED;
1977
1978 done_free_sp:
1979         sp->free(vha, sp);
1980 done:
1981         return rval;
1982 }
1983
1984 int
1985 qlafx00_abort_command(srb_t *sp)
1986 {
1987         unsigned long   flags = 0;
1988
1989         uint32_t        handle;
1990         fc_port_t       *fcport = sp->fcport;
1991         struct scsi_qla_host *vha = fcport->vha;
1992         struct qla_hw_data *ha = vha->hw;
1993         struct req_que *req = vha->req;
1994
1995         spin_lock_irqsave(&ha->hardware_lock, flags);
1996         for (handle = 1; handle < DEFAULT_OUTSTANDING_COMMANDS; handle++) {
1997                 if (req->outstanding_cmds[handle] == sp)
1998                         break;
1999         }
2000         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2001         if (handle == DEFAULT_OUTSTANDING_COMMANDS) {
2002                 /* Command not found. */
2003                 return QLA_FUNCTION_FAILED;
2004         }
2005         return qlafx00_async_abt_cmd(sp);
2006 }
2007
2008 /*
2009  * qlafx00_initialize_adapter
2010  *      Initialize board.
2011  *
2012  * Input:
2013  *      ha = adapter block pointer.
2014  *
2015  * Returns:
2016  *      0 = success
2017  */
2018 int
2019 qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2020 {
2021         int     rval;
2022         struct qla_hw_data *ha = vha->hw;
2023
2024         /* Clear adapter flags. */
2025         vha->flags.online = 0;
2026         ha->flags.chip_reset_done = 0;
2027         vha->flags.reset_active = 0;
2028         ha->flags.pci_channel_io_perm_failure = 0;
2029         ha->flags.eeh_busy = 0;
2030         ha->thermal_support = 0;
2031         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2032         atomic_set(&vha->loop_state, LOOP_DOWN);
2033         vha->device_flags = DFLG_NO_CABLE;
2034         vha->dpc_flags = 0;
2035         vha->flags.management_server_logged_in = 0;
2036         vha->marker_needed = 0;
2037         ha->isp_abort_cnt = 0;
2038         ha->beacon_blink_led = 0;
2039
2040         set_bit(0, ha->req_qid_map);
2041         set_bit(0, ha->rsp_qid_map);
2042
2043         ql_dbg(ql_dbg_init, vha, 0x0147,
2044             "Configuring PCI space...\n");
2045
2046         rval = ha->isp_ops->pci_config(vha);
2047         if (rval) {
2048                 ql_log(ql_log_warn, vha, 0x0148,
2049                     "Unable to configure PCI space.\n");
2050                 return rval;
2051         }
2052
2053         rval = qlafx00_init_fw_ready(vha);
2054         if (rval != QLA_SUCCESS)
2055                 return rval;
2056
2057         qlafx00_save_queue_ptrs(vha);
2058
2059         rval = qlafx00_config_queues(vha);
2060         if (rval != QLA_SUCCESS)
2061                 return rval;
2062
2063         /*
2064          * Allocate the array of outstanding commands
2065          * now that we know the firmware resources.
2066          */
2067         rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2068         if (rval != QLA_SUCCESS)
2069                 return rval;
2070
2071         rval = qla2x00_init_rings(vha);
2072         ha->flags.chip_reset_done = 1;
2073
2074         return rval;
2075 }
2076
2077 uint32_t
2078 qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2079                       char *buf)
2080 {
2081         scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2082         int rval = QLA_FUNCTION_FAILED;
2083         uint32_t state[1];
2084
2085         if (qla2x00_reset_active(vha))
2086                 ql_log(ql_log_warn, vha, 0x70ce,
2087                     "ISP reset active.\n");
2088         else if (!vha->hw->flags.eeh_busy) {
2089                 rval = qlafx00_get_firmware_state(vha, state);
2090         }
2091         if (rval != QLA_SUCCESS)
2092                 memset(state, -1, sizeof(state));
2093
2094         return state[0];
2095 }
2096
2097 void
2098 qlafx00_get_host_speed(struct Scsi_Host *shost)
2099 {
2100         struct qla_hw_data *ha = ((struct scsi_qla_host *)
2101                                         (shost_priv(shost)))->hw;
2102         u32 speed = FC_PORTSPEED_UNKNOWN;
2103
2104         switch (ha->link_data_rate) {
2105         case QLAFX00_PORT_SPEED_2G:
2106                 speed = FC_PORTSPEED_2GBIT;
2107                 break;
2108         case QLAFX00_PORT_SPEED_4G:
2109                 speed = FC_PORTSPEED_4GBIT;
2110                 break;
2111         case QLAFX00_PORT_SPEED_8G:
2112                 speed = FC_PORTSPEED_8GBIT;
2113                 break;
2114         case QLAFX00_PORT_SPEED_10G:
2115                 speed = FC_PORTSPEED_10GBIT;
2116                 break;
2117         }
2118         fc_host_speed(shost) = speed;
2119 }
2120
2121 /** QLAFX00 specific ISR implementation functions */
2122
2123 static inline void
2124 qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2125                      uint32_t sense_len, struct rsp_que *rsp, int res)
2126 {
2127         struct scsi_qla_host *vha = sp->fcport->vha;
2128         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2129         uint32_t track_sense_len;
2130
2131         SET_FW_SENSE_LEN(sp, sense_len);
2132
2133         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2134                 sense_len = SCSI_SENSE_BUFFERSIZE;
2135
2136         SET_CMD_SENSE_LEN(sp, sense_len);
2137         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2138         track_sense_len = sense_len;
2139
2140         if (sense_len > par_sense_len)
2141                 sense_len = par_sense_len;
2142
2143         memcpy(cp->sense_buffer, sense_data, sense_len);
2144
2145         SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2146
2147         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2148         track_sense_len -= sense_len;
2149         SET_CMD_SENSE_LEN(sp, track_sense_len);
2150
2151         ql_dbg(ql_dbg_io, vha, 0x304d,
2152             "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2153             sense_len, par_sense_len, track_sense_len);
2154         if (GET_FW_SENSE_LEN(sp) > 0) {
2155                 rsp->status_srb = sp;
2156                 cp->result = res;
2157         }
2158
2159         if (sense_len) {
2160                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2161                     "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
2162                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
2163                     cp);
2164                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2165                     cp->sense_buffer, sense_len);
2166         }
2167 }
2168
2169 static void
2170 qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2171                       struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2172                       uint16_t sstatus, uint16_t cpstatus)
2173 {
2174         struct srb_iocb *tmf;
2175
2176         tmf = &sp->u.iocb_cmd;
2177         if (cpstatus != CS_COMPLETE ||
2178             (sstatus & SS_RESPONSE_INFO_LEN_VALID))
2179                 cpstatus = CS_INCOMPLETE;
2180         tmf->u.tmf.comp_status = cpstatus;
2181         sp->done(vha, sp, 0);
2182 }
2183
2184 static void
2185 qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2186                          struct abort_iocb_entry_fx00 *pkt)
2187 {
2188         const char func[] = "ABT_IOCB";
2189         srb_t *sp;
2190         struct srb_iocb *abt;
2191
2192         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2193         if (!sp)
2194                 return;
2195
2196         abt = &sp->u.iocb_cmd;
2197         abt->u.abt.comp_status = le32_to_cpu(pkt->tgt_id_sts);
2198         sp->done(vha, sp, 0);
2199 }
2200
2201 static void
2202 qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2203                          struct ioctl_iocb_entry_fx00 *pkt)
2204 {
2205         const char func[] = "IOSB_IOCB";
2206         srb_t *sp;
2207         struct fc_bsg_job *bsg_job;
2208         struct srb_iocb *iocb_job;
2209         int res;
2210         struct qla_mt_iocb_rsp_fx00 fstatus;
2211         uint8_t *fw_sts_ptr;
2212
2213         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2214         if (!sp)
2215                 return;
2216
2217         if (sp->type == SRB_FXIOCB_DCMD) {
2218                 iocb_job = &sp->u.iocb_cmd;
2219                 iocb_job->u.fxiocb.seq_number = le32_to_cpu(pkt->seq_no);
2220                 iocb_job->u.fxiocb.fw_flags = le32_to_cpu(pkt->fw_iotcl_flags);
2221                 iocb_job->u.fxiocb.result = le32_to_cpu(pkt->status);
2222                 if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2223                         iocb_job->u.fxiocb.req_data =
2224                             le32_to_cpu(pkt->dataword_r);
2225         } else {
2226                 bsg_job = sp->u.bsg_job;
2227
2228                 memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2229
2230                 fstatus.reserved_1 = pkt->reserved_0;
2231                 fstatus.func_type = pkt->comp_func_num;
2232                 fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2233                 fstatus.ioctl_data = pkt->dataword_r;
2234                 fstatus.adapid = pkt->adapid;
2235                 fstatus.adapid_hi = pkt->adapid_hi;
2236                 fstatus.reserved_2 = pkt->reserved_1;
2237                 fstatus.res_count = pkt->residuallen;
2238                 fstatus.status = pkt->status;
2239                 fstatus.seq_number = pkt->seq_no;
2240                 memcpy(fstatus.reserved_3,
2241                     pkt->reserved_2, 20 * sizeof(uint8_t));
2242
2243                 fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
2244                     sizeof(struct fc_bsg_reply);
2245
2246                 memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
2247                     sizeof(struct qla_mt_iocb_rsp_fx00));
2248                 bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2249                         sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2250
2251                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2252                     sp->fcport->vha, 0x5080,
2253                     (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));
2254
2255                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2256                     sp->fcport->vha, 0x5074,
2257                     (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));
2258
2259                 res = bsg_job->reply->result = DID_OK << 16;
2260                 bsg_job->reply->reply_payload_rcv_len =
2261                     bsg_job->reply_payload.payload_len;
2262         }
2263         sp->done(vha, sp, res);
2264 }
2265
2266 /**
2267  * qlafx00_status_entry() - Process a Status IOCB entry.
2268  * @ha: SCSI driver HA context
2269  * @pkt: Entry pointer
2270  */
2271 static void
2272 qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2273 {
2274         srb_t           *sp;
2275         fc_port_t       *fcport;
2276         struct scsi_cmnd *cp;
2277         struct sts_entry_fx00 *sts;
2278         uint16_t        comp_status;
2279         uint16_t        scsi_status;
2280         uint16_t        ox_id;
2281         uint8_t         lscsi_status;
2282         int32_t         resid;
2283         uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2284             fw_resid_len;
2285         uint8_t         *rsp_info = NULL, *sense_data = NULL;
2286         struct qla_hw_data *ha = vha->hw;
2287         uint32_t hindex, handle;
2288         uint16_t que;
2289         struct req_que *req;
2290         int logit = 1;
2291         int res = 0;
2292
2293         sts = (struct sts_entry_fx00 *) pkt;
2294
2295         comp_status = le16_to_cpu(sts->comp_status);
2296         scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2297         hindex = sts->handle;
2298         handle = LSW(hindex);
2299
2300         que = MSW(hindex);
2301         req = ha->req_q_map[que];
2302
2303         /* Validate handle. */
2304         if (handle < req->num_outstanding_cmds)
2305                 sp = req->outstanding_cmds[handle];
2306         else
2307                 sp = NULL;
2308
2309         if (sp == NULL) {
2310                 ql_dbg(ql_dbg_io, vha, 0x3034,
2311                     "Invalid status handle (0x%x).\n", handle);
2312
2313                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2314                 qla2xxx_wake_dpc(vha);
2315                 return;
2316         }
2317
2318         if (sp->type == SRB_TM_CMD) {
2319                 req->outstanding_cmds[handle] = NULL;
2320                 qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2321                     scsi_status, comp_status);
2322                 return;
2323         }
2324
2325         /* Fast path completion. */
2326         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2327                 qla2x00_do_host_ramp_up(vha);
2328                 qla2x00_process_completed_request(vha, req, handle);
2329                 return;
2330         }
2331
2332         req->outstanding_cmds[handle] = NULL;
2333         cp = GET_CMD_SP(sp);
2334         if (cp == NULL) {
2335                 ql_dbg(ql_dbg_io, vha, 0x3048,
2336                     "Command already returned (0x%x/%p).\n",
2337                     handle, sp);
2338
2339                 return;
2340         }
2341
2342         lscsi_status = scsi_status & STATUS_MASK;
2343
2344         fcport = sp->fcport;
2345
2346         ox_id = 0;
2347         sense_len = par_sense_len = rsp_info_len = resid_len =
2348                 fw_resid_len = 0;
2349         if (scsi_status & SS_SENSE_LEN_VALID)
2350                 sense_len = le32_to_cpu(sts->sense_len);
2351         if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2352                 resid_len = le32_to_cpu(sts->residual_len);
2353         if (comp_status == CS_DATA_UNDERRUN)
2354                 fw_resid_len = le32_to_cpu(sts->residual_len);
2355         rsp_info = sense_data = sts->data;
2356         par_sense_len = sizeof(sts->data);
2357
2358         /* Check for overrun. */
2359         if (comp_status == CS_COMPLETE &&
2360             scsi_status & SS_RESIDUAL_OVER)
2361                 comp_status = CS_DATA_OVERRUN;
2362
2363         /*
2364          * Based on Host and scsi status generate status code for Linux
2365          */
2366         switch (comp_status) {
2367         case CS_COMPLETE:
2368         case CS_QUEUE_FULL:
2369                 if (scsi_status == 0) {
2370                         res = DID_OK << 16;
2371                         break;
2372                 }
2373                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2374                         resid = resid_len;
2375                         scsi_set_resid(cp, resid);
2376
2377                         if (!lscsi_status &&
2378                             ((unsigned)(scsi_bufflen(cp) - resid) <
2379                              cp->underflow)) {
2380                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2381                                     "Mid-layer underflow "
2382                                     "detected (0x%x of 0x%x bytes).\n",
2383                                     resid, scsi_bufflen(cp));
2384
2385                                 res = DID_ERROR << 16;
2386                                 break;
2387                         }
2388                 }
2389                 res = DID_OK << 16 | lscsi_status;
2390
2391                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2392                         ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2393                             "QUEUE FULL detected.\n");
2394                         break;
2395                 }
2396                 logit = 0;
2397                 if (lscsi_status != SS_CHECK_CONDITION)
2398                         break;
2399
2400                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2401                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2402                         break;
2403
2404                 qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2405                     rsp, res);
2406                 break;
2407
2408         case CS_DATA_UNDERRUN:
2409                 /* Use F/W calculated residual length. */
2410                 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2411                         resid = fw_resid_len;
2412                 else
2413                         resid = resid_len;
2414                 scsi_set_resid(cp, resid);
2415                 if (scsi_status & SS_RESIDUAL_UNDER) {
2416                         if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2417                             && fw_resid_len != resid_len) {
2418                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2419                                     "Dropped frame(s) detected "
2420                                     "(0x%x of 0x%x bytes).\n",
2421                                     resid, scsi_bufflen(cp));
2422
2423                                 res = DID_ERROR << 16 | lscsi_status;
2424                                 goto check_scsi_status;
2425                         }
2426
2427                         if (!lscsi_status &&
2428                             ((unsigned)(scsi_bufflen(cp) - resid) <
2429                             cp->underflow)) {
2430                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2431                                     "Mid-layer underflow "
2432                                     "detected (0x%x of 0x%x bytes, "
2433                                     "cp->underflow: 0x%x).\n",
2434                                     resid, scsi_bufflen(cp), cp->underflow);
2435
2436                                 res = DID_ERROR << 16;
2437                                 break;
2438                         }
2439                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2440                             lscsi_status != SAM_STAT_BUSY) {
2441                         /*
2442                          * scsi status of task set and busy are considered
2443                          * to be task not completed.
2444                          */
2445
2446                         ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2447                             "Dropped frame(s) detected (0x%x "
2448                             "of 0x%x bytes).\n", resid,
2449                             scsi_bufflen(cp));
2450
2451                         res = DID_ERROR << 16 | lscsi_status;
2452                         goto check_scsi_status;
2453                 } else {
2454                         ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2455                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2456                             scsi_status, lscsi_status);
2457                 }
2458
2459                 res = DID_OK << 16 | lscsi_status;
2460                 logit = 0;
2461
2462 check_scsi_status:
2463                 /*
2464                  * Check to see if SCSI Status is non zero. If so report SCSI
2465                  * Status.
2466                  */
2467                 if (lscsi_status != 0) {
2468                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2469                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2470                                     "QUEUE FULL detected.\n");
2471                                 logit = 1;
2472                                 break;
2473                         }
2474                         if (lscsi_status != SS_CHECK_CONDITION)
2475                                 break;
2476
2477                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2478                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2479                                 break;
2480
2481                         qlafx00_handle_sense(sp, sense_data, par_sense_len,
2482                             sense_len, rsp, res);
2483                 }
2484                 break;
2485
2486         case CS_PORT_LOGGED_OUT:
2487         case CS_PORT_CONFIG_CHG:
2488         case CS_PORT_BUSY:
2489         case CS_INCOMPLETE:
2490         case CS_PORT_UNAVAILABLE:
2491         case CS_TIMEOUT:
2492         case CS_RESET:
2493
2494                 /*
2495                  * We are going to have the fc class block the rport
2496                  * while we try to recover so instruct the mid layer
2497                  * to requeue until the class decides how to handle this.
2498                  */
2499                 res = DID_TRANSPORT_DISRUPTED << 16;
2500
2501                 ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2502                     "Port down status: port-state=0x%x.\n",
2503                     atomic_read(&fcport->state));
2504
2505                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2506                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2507                 break;
2508
2509         case CS_ABORTED:
2510                 res = DID_RESET << 16;
2511                 break;
2512
2513         default:
2514                 res = DID_ERROR << 16;
2515                 break;
2516         }
2517
2518         if (logit)
2519                 ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2520                     "FCP command status: 0x%x-0x%x (0x%x) "
2521                     "nexus=%ld:%d:%d tgt_id: 0x%x lscsi_status: 0x%x"
2522                     "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
2523                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x "
2524                     "sense_len=0x%x, par_sense_len=0x%x, rsp_info_len=0x%x\n",
2525                     comp_status, scsi_status, res, vha->host_no,
2526                     cp->device->id, cp->device->lun, fcport->tgt_id,
2527                     lscsi_status, cp->cmnd[0], cp->cmnd[1], cp->cmnd[2],
2528                     cp->cmnd[3], cp->cmnd[4], cp->cmnd[5], cp->cmnd[6],
2529                     cp->cmnd[7], cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp),
2530                     rsp_info_len, resid_len, fw_resid_len, sense_len,
2531                     par_sense_len, rsp_info_len);
2532
2533         if (!res)
2534                 qla2x00_do_host_ramp_up(vha);
2535
2536         if (rsp->status_srb == NULL)
2537                 sp->done(ha, sp, res);
2538 }
2539
2540 /**
2541  * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2542  * @ha: SCSI driver HA context
2543  * @pkt: Entry pointer
2544  *
2545  * Extended sense data.
2546  */
2547 static void
2548 qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2549 {
2550         uint8_t sense_sz = 0;
2551         struct qla_hw_data *ha = rsp->hw;
2552         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2553         srb_t *sp = rsp->status_srb;
2554         struct scsi_cmnd *cp;
2555         uint32_t sense_len;
2556         uint8_t *sense_ptr;
2557
2558         if (!sp) {
2559                 ql_dbg(ql_dbg_io, vha, 0x3037,
2560                     "no SP, sp = %p\n", sp);
2561                 return;
2562         }
2563
2564         if (!GET_FW_SENSE_LEN(sp)) {
2565                 ql_dbg(ql_dbg_io, vha, 0x304b,
2566                     "no fw sense data, sp = %p\n", sp);
2567                 return;
2568         }
2569         cp = GET_CMD_SP(sp);
2570         if (cp == NULL) {
2571                 ql_log(ql_log_warn, vha, 0x303b,
2572                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2573
2574                 rsp->status_srb = NULL;
2575                 return;
2576         }
2577
2578         if (!GET_CMD_SENSE_LEN(sp)) {
2579                 ql_dbg(ql_dbg_io, vha, 0x304c,
2580                     "no sense data, sp = %p\n", sp);
2581         } else {
2582                 sense_len = GET_CMD_SENSE_LEN(sp);
2583                 sense_ptr = GET_CMD_SENSE_PTR(sp);
2584                 ql_dbg(ql_dbg_io, vha, 0x304f,
2585                     "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2586                     sp, sense_len, sense_ptr);
2587
2588                 if (sense_len > sizeof(pkt->data))
2589                         sense_sz = sizeof(pkt->data);
2590                 else
2591                         sense_sz = sense_len;
2592
2593                 /* Move sense data. */
2594                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2595                     (uint8_t *)pkt, sizeof(sts_cont_entry_t));
2596                 memcpy(sense_ptr, pkt->data, sense_sz);
2597                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2598                     sense_ptr, sense_sz);
2599
2600                 sense_len -= sense_sz;
2601                 sense_ptr += sense_sz;
2602
2603                 SET_CMD_SENSE_PTR(sp, sense_ptr);
2604                 SET_CMD_SENSE_LEN(sp, sense_len);
2605         }
2606         sense_len = GET_FW_SENSE_LEN(sp);
2607         sense_len = (sense_len > sizeof(pkt->data)) ?
2608             (sense_len - sizeof(pkt->data)) : 0;
2609         SET_FW_SENSE_LEN(sp, sense_len);
2610
2611         /* Place command on done queue. */
2612         if (sense_len == 0) {
2613                 rsp->status_srb = NULL;
2614                 sp->done(ha, sp, cp->result);
2615         }
2616 }
2617
2618 /**
2619  * qlafx00_multistatus_entry() - Process Multi response queue entries.
2620  * @ha: SCSI driver HA context
2621  */
2622 static void
2623 qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2624         struct rsp_que *rsp, void *pkt)
2625 {
2626         srb_t           *sp;
2627         struct multi_sts_entry_fx00 *stsmfx;
2628         struct qla_hw_data *ha = vha->hw;
2629         uint32_t handle, hindex, handle_count, i;
2630         uint16_t que;
2631         struct req_que *req;
2632         uint32_t *handle_ptr;
2633
2634         stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2635
2636         handle_count = stsmfx->handle_count;
2637
2638         if (handle_count > MAX_HANDLE_COUNT) {
2639                 ql_dbg(ql_dbg_io, vha, 0x3035,
2640                     "Invalid handle count (0x%x).\n", handle_count);
2641                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2642                 qla2xxx_wake_dpc(vha);
2643                 return;
2644         }
2645
2646         handle_ptr = (uint32_t *) &stsmfx->handles[0];
2647
2648         for (i = 0; i < handle_count; i++) {
2649                 hindex = le32_to_cpu(*handle_ptr);
2650                 handle = LSW(hindex);
2651                 que = MSW(hindex);
2652                 req = ha->req_q_map[que];
2653
2654                 /* Validate handle. */
2655                 if (handle < req->num_outstanding_cmds)
2656                         sp = req->outstanding_cmds[handle];
2657                 else
2658                         sp = NULL;
2659
2660                 if (sp == NULL) {
2661                         ql_dbg(ql_dbg_io, vha, 0x3044,
2662                             "Invalid status handle (0x%x).\n", handle);
2663                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2664                         qla2xxx_wake_dpc(vha);
2665                         return;
2666                 }
2667                 qla2x00_process_completed_request(vha, req, handle);
2668                 handle_ptr++;
2669         }
2670 }
2671
2672 /**
2673  * qlafx00_error_entry() - Process an error entry.
2674  * @ha: SCSI driver HA context
2675  * @pkt: Entry pointer
2676  */
2677 static void
2678 qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2679                     struct sts_entry_fx00 *pkt, uint8_t estatus, uint8_t etype)
2680 {
2681         srb_t *sp;
2682         struct qla_hw_data *ha = vha->hw;
2683         const char func[] = "ERROR-IOCB";
2684         uint16_t que = MSW(pkt->handle);
2685         struct req_que *req = NULL;
2686         int res = DID_ERROR << 16;
2687
2688         ql_dbg(ql_dbg_async, vha, 0x507f,
2689             "type of error status in response: 0x%x\n", estatus);
2690
2691         req = ha->req_q_map[que];
2692
2693         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2694         if (sp) {
2695                 sp->done(ha, sp, res);
2696                 return;
2697         }
2698
2699         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2700         qla2xxx_wake_dpc(vha);
2701 }
2702
2703 /**
2704  * qlafx00_process_response_queue() - Process response queue entries.
2705  * @ha: SCSI driver HA context
2706  */
2707 static void
2708 qlafx00_process_response_queue(struct scsi_qla_host *vha,
2709         struct rsp_que *rsp)
2710 {
2711         struct sts_entry_fx00 *pkt;
2712         response_t *lptr;
2713
2714         if (!vha->flags.online)
2715                 return;
2716
2717         while (RD_REG_DWORD(&(rsp->ring_ptr->signature)) !=
2718             RESPONSE_PROCESSED) {
2719                 lptr = rsp->ring_ptr;
2720                 memcpy_fromio(rsp->rsp_pkt, lptr, sizeof(rsp->rsp_pkt));
2721                 pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2722
2723                 rsp->ring_index++;
2724                 if (rsp->ring_index == rsp->length) {
2725                         rsp->ring_index = 0;
2726                         rsp->ring_ptr = rsp->ring;
2727                 } else {
2728                         rsp->ring_ptr++;
2729                 }
2730
2731                 if (pkt->entry_status != 0 &&
2732                     pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2733                         qlafx00_error_entry(vha, rsp,
2734                             (struct sts_entry_fx00 *)pkt, pkt->entry_status,
2735                             pkt->entry_type);
2736                         goto next_iter;
2737                         continue;
2738                 }
2739
2740                 switch (pkt->entry_type) {
2741                 case STATUS_TYPE_FX00:
2742                         qlafx00_status_entry(vha, rsp, pkt);
2743                         break;
2744
2745                 case STATUS_CONT_TYPE_FX00:
2746                         qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2747                         break;
2748
2749                 case MULTI_STATUS_TYPE_FX00:
2750                         qlafx00_multistatus_entry(vha, rsp, pkt);
2751                         break;
2752
2753                 case ABORT_IOCB_TYPE_FX00:
2754                         qlafx00_abort_iocb_entry(vha, rsp->req,
2755                            (struct abort_iocb_entry_fx00 *)pkt);
2756                         break;
2757
2758                 case IOCTL_IOSB_TYPE_FX00:
2759                         qlafx00_ioctl_iosb_entry(vha, rsp->req,
2760                             (struct ioctl_iocb_entry_fx00 *)pkt);
2761                         break;
2762                 default:
2763                         /* Type Not Supported. */
2764                         ql_dbg(ql_dbg_async, vha, 0x5081,
2765                             "Received unknown response pkt type %x "
2766                             "entry status=%x.\n",
2767                             pkt->entry_type, pkt->entry_status);
2768                         break;
2769                 }
2770 next_iter:
2771                 WRT_REG_DWORD(&lptr->signature, RESPONSE_PROCESSED);
2772                 wmb();
2773         }
2774
2775         /* Adjust ring index */
2776         WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2777 }
2778
2779 /**
2780  * qlafx00_async_event() - Process aynchronous events.
2781  * @ha: SCSI driver HA context
2782  */
2783 static void
2784 qlafx00_async_event(scsi_qla_host_t *vha)
2785 {
2786         struct qla_hw_data *ha = vha->hw;
2787         struct device_reg_fx00 __iomem *reg;
2788         int data_size = 1;
2789
2790         reg = &ha->iobase->ispfx00;
2791         /* Setup to process RIO completion. */
2792         switch (ha->aenmb[0]) {
2793         case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2794                 ql_log(ql_log_warn, vha, 0x5079,
2795                     "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2796                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2797                 break;
2798
2799         case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2800                 ql_dbg(ql_dbg_async, vha, 0x5076,
2801                     "Asynchronous FW shutdown requested.\n");
2802                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2803                 qla2xxx_wake_dpc(vha);
2804                 break;
2805
2806         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2807                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2808                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2809                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2810                 ql_dbg(ql_dbg_async, vha, 0x5077,
2811                     "Asynchronous port Update received "
2812                     "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2813                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2814                 data_size = 4;
2815                 break;
2816         default:
2817                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2818                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2819                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2820                 ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2821                 ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2822                 ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2823                 ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2824                 ql_dbg(ql_dbg_async, vha, 0x5078,
2825                     "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2826                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2827                     ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2828                 break;
2829         }
2830         qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2831             (uint32_t *)ha->aenmb, data_size);
2832 }
2833
2834 /**
2835  *
2836  * qlafx00x_mbx_completion() - Process mailbox command completions.
2837  * @ha: SCSI driver HA context
2838  * @mb16: Mailbox16 register
2839  */
2840 static void
2841 qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2842 {
2843         uint16_t        cnt;
2844         uint16_t __iomem *wptr;
2845         struct qla_hw_data *ha = vha->hw;
2846         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2847
2848         if (!ha->mcp32)
2849                 ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2850
2851         /* Load return mailbox registers. */
2852         ha->flags.mbox_int = 1;
2853         ha->mailbox_out32[0] = mb0;
2854         wptr = (uint16_t __iomem *)&reg->mailbox17;
2855
2856         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2857                 ha->mailbox_out32[cnt] = RD_REG_WORD(wptr);
2858                 wptr++;
2859         }
2860 }
2861
2862 /**
2863  * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2864  * @irq:
2865  * @dev_id: SCSI driver HA context
2866  *
2867  * Called by system whenever the host adapter generates an interrupt.
2868  *
2869  * Returns handled flag.
2870  */
2871 irqreturn_t
2872 qlafx00_intr_handler(int irq, void *dev_id)
2873 {
2874         scsi_qla_host_t *vha;
2875         struct qla_hw_data *ha;
2876         struct device_reg_fx00 __iomem *reg;
2877         int             status;
2878         unsigned long   iter;
2879         uint32_t        stat;
2880         uint32_t        mb[8];
2881         struct rsp_que *rsp;
2882         unsigned long   flags;
2883         uint32_t clr_intr = 0;
2884
2885         rsp = (struct rsp_que *) dev_id;
2886         if (!rsp) {
2887                 ql_log(ql_log_info, NULL, 0x507d,
2888                     "%s: NULL response queue pointer.\n", __func__);
2889                 return IRQ_NONE;
2890         }
2891
2892         ha = rsp->hw;
2893         reg = &ha->iobase->ispfx00;
2894         status = 0;
2895
2896         if (unlikely(pci_channel_offline(ha->pdev)))
2897                 return IRQ_HANDLED;
2898
2899         spin_lock_irqsave(&ha->hardware_lock, flags);
2900         vha = pci_get_drvdata(ha->pdev);
2901         for (iter = 50; iter--; clr_intr = 0) {
2902                 stat = QLAFX00_RD_INTR_REG(ha);
2903                 if ((stat & QLAFX00_HST_INT_STS_BITS) == 0)
2904                         break;
2905
2906                 switch (stat & QLAFX00_HST_INT_STS_BITS) {
2907                 case QLAFX00_INTR_MB_CMPLT:
2908                 case QLAFX00_INTR_MB_RSP_CMPLT:
2909                 case QLAFX00_INTR_MB_ASYNC_CMPLT:
2910                 case QLAFX00_INTR_ALL_CMPLT:
2911                         mb[0] = RD_REG_WORD(&reg->mailbox16);
2912                         qlafx00_mbx_completion(vha, mb[0]);
2913                         status |= MBX_INTERRUPT;
2914                         clr_intr |= QLAFX00_INTR_MB_CMPLT;
2915                         break;
2916                 case QLAFX00_INTR_ASYNC_CMPLT:
2917                 case QLAFX00_INTR_RSP_ASYNC_CMPLT:
2918                         ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2919                         qlafx00_async_event(vha);
2920                         clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2921                         break;
2922                 case QLAFX00_INTR_RSP_CMPLT:
2923                         qlafx00_process_response_queue(vha, rsp);
2924                         clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2925                         break;
2926                 default:
2927                         ql_dbg(ql_dbg_async, vha, 0x507a,
2928                             "Unrecognized interrupt type (%d).\n", stat);
2929                         break;
2930                 }
2931                 QLAFX00_CLR_INTR_REG(ha, clr_intr);
2932                 QLAFX00_RD_INTR_REG(ha);
2933         }
2934
2935         qla2x00_handle_mbx_completion(ha, status);
2936         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2937
2938         return IRQ_HANDLED;
2939 }
2940
2941 /** QLAFX00 specific IOCB implementation functions */
2942
2943 static inline cont_a64_entry_t *
2944 qlafx00_prep_cont_type1_iocb(struct req_que *req,
2945                              cont_a64_entry_t *lcont_pkt)
2946 {
2947         cont_a64_entry_t *cont_pkt;
2948
2949         /* Adjust ring index. */
2950         req->ring_index++;
2951         if (req->ring_index == req->length) {
2952                 req->ring_index = 0;
2953                 req->ring_ptr = req->ring;
2954         } else {
2955                 req->ring_ptr++;
2956         }
2957
2958         cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2959
2960         /* Load packet defaults. */
2961         *((uint32_t *)(&lcont_pkt->entry_type)) =
2962             __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00);
2963
2964         return cont_pkt;
2965 }
2966
2967 static inline void
2968 qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2969                          uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2970 {
2971         uint16_t        avail_dsds;
2972         uint32_t        *cur_dsd;
2973         scsi_qla_host_t *vha;
2974         struct scsi_cmnd *cmd;
2975         struct scatterlist *sg;
2976         int i, cont;
2977         struct req_que *req;
2978         cont_a64_entry_t lcont_pkt;
2979         cont_a64_entry_t *cont_pkt;
2980
2981         vha = sp->fcport->vha;
2982         req = vha->req;
2983
2984         cmd = GET_CMD_SP(sp);
2985         cont = 0;
2986         cont_pkt = NULL;
2987
2988         /* Update entry type to indicate Command Type 3 IOCB */
2989         *((uint32_t *)(&lcmd_pkt->entry_type)) =
2990             __constant_cpu_to_le32(FX00_COMMAND_TYPE_7);
2991
2992         /* No data transfer */
2993         if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2994                 lcmd_pkt->byte_count = __constant_cpu_to_le32(0);
2995                 return;
2996         }
2997
2998         /* Set transfer direction */
2999         if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3000                 lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3001                 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3002         } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3003                 lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3004                 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3005         }
3006
3007         /* One DSD is available in the Command Type 3 IOCB */
3008         avail_dsds = 1;
3009         cur_dsd = (uint32_t *)&lcmd_pkt->dseg_0_address;
3010
3011         /* Load data segments */
3012         scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3013                 dma_addr_t      sle_dma;
3014
3015                 /* Allocate additional continuation packets? */
3016                 if (avail_dsds == 0) {
3017                         /*
3018                          * Five DSDs are available in the Continuation
3019                          * Type 1 IOCB.
3020                          */
3021                         memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3022                         cont_pkt =
3023                             qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3024                         cur_dsd = (uint32_t *)lcont_pkt.dseg_0_address;
3025                         avail_dsds = 5;
3026                         cont = 1;
3027                 }
3028
3029                 sle_dma = sg_dma_address(sg);
3030                 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3031                 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3032                 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3033                 avail_dsds--;
3034                 if (avail_dsds == 0 && cont == 1) {
3035                         cont = 0;
3036                         memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3037                             REQUEST_ENTRY_SIZE);
3038                 }
3039
3040         }
3041         if (avail_dsds != 0 && cont == 1) {
3042                 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3043                     REQUEST_ENTRY_SIZE);
3044         }
3045 }
3046
3047 /**
3048  * qlafx00_start_scsi() - Send a SCSI command to the ISP
3049  * @sp: command to send to the ISP
3050  *
3051  * Returns non-zero if a failure occurred, else zero.
3052  */
3053 int
3054 qlafx00_start_scsi(srb_t *sp)
3055 {
3056         int             ret, nseg;
3057         unsigned long   flags;
3058         uint32_t        index;
3059         uint32_t        handle;
3060         uint16_t        cnt;
3061         uint16_t        req_cnt;
3062         uint16_t        tot_dsds;
3063         struct req_que *req = NULL;
3064         struct rsp_que *rsp = NULL;
3065         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3066         struct scsi_qla_host *vha = sp->fcport->vha;
3067         struct qla_hw_data *ha = vha->hw;
3068         struct cmd_type_7_fx00 *cmd_pkt;
3069         struct cmd_type_7_fx00 lcmd_pkt;
3070         struct scsi_lun llun;
3071         char            tag[2];
3072
3073         /* Setup device pointers. */
3074         ret = 0;
3075
3076         rsp = ha->rsp_q_map[0];
3077         req = vha->req;
3078
3079         /* So we know we haven't pci_map'ed anything yet */
3080         tot_dsds = 0;
3081
3082         /* Forcing marker needed for now */
3083         vha->marker_needed = 0;
3084
3085         /* Send marker if required */
3086         if (vha->marker_needed != 0) {
3087                 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
3088                     QLA_SUCCESS)
3089                         return QLA_FUNCTION_FAILED;
3090                 vha->marker_needed = 0;
3091         }
3092
3093         /* Acquire ring specific lock */
3094         spin_lock_irqsave(&ha->hardware_lock, flags);
3095
3096         /* Check for room in outstanding command list. */
3097         handle = req->current_outstanding_cmd;
3098         for (index = 1; index < req->num_outstanding_cmds; index++) {
3099                 handle++;
3100                 if (handle == req->num_outstanding_cmds)
3101                         handle = 1;
3102                 if (!req->outstanding_cmds[handle])
3103                         break;
3104         }
3105         if (index == req->num_outstanding_cmds)
3106                 goto queuing_error;
3107
3108         /* Map the sg table so we have an accurate count of sg entries needed */
3109         if (scsi_sg_count(cmd)) {
3110                 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3111                     scsi_sg_count(cmd), cmd->sc_data_direction);
3112                 if (unlikely(!nseg))
3113                         goto queuing_error;
3114         } else
3115                 nseg = 0;
3116
3117         tot_dsds = nseg;
3118         req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3119         if (req->cnt < (req_cnt + 2)) {
3120                 cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3121
3122                 if (req->ring_index < cnt)
3123                         req->cnt = cnt - req->ring_index;
3124                 else
3125                         req->cnt = req->length -
3126                                 (req->ring_index - cnt);
3127                 if (req->cnt < (req_cnt + 2))
3128                         goto queuing_error;
3129         }
3130
3131         /* Build command packet. */
3132         req->current_outstanding_cmd = handle;
3133         req->outstanding_cmds[handle] = sp;
3134         sp->handle = handle;
3135         cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3136         req->cnt -= req_cnt;
3137
3138         cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3139
3140         memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3141
3142         lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3143         lcmd_pkt.handle_hi = 0;
3144         lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3145         lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3146
3147         int_to_scsilun(cmd->device->lun, &llun);
3148         host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3149             sizeof(lcmd_pkt.lun));
3150
3151         /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
3152         if (scsi_populate_tag_msg(cmd, tag)) {
3153                 switch (tag[0]) {
3154                 case HEAD_OF_QUEUE_TAG:
3155                         lcmd_pkt.task = TSK_HEAD_OF_QUEUE;
3156                         break;
3157                 case ORDERED_QUEUE_TAG:
3158                         lcmd_pkt.task = TSK_ORDERED;
3159                         break;
3160                 }
3161         }
3162
3163         /* Load SCSI command packet. */
3164         host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3165         lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3166
3167         /* Build IOCB segments */
3168         qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3169
3170         /* Set total data segment count. */
3171         lcmd_pkt.entry_count = (uint8_t)req_cnt;
3172
3173         /* Specify response queue number where completion should happen */
3174         lcmd_pkt.entry_status = (uint8_t) rsp->id;
3175
3176         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3177             (uint8_t *)cmd->cmnd, cmd->cmd_len);
3178         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3179             (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);
3180
3181         memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3182         wmb();
3183
3184         /* Adjust ring index. */
3185         req->ring_index++;
3186         if (req->ring_index == req->length) {
3187                 req->ring_index = 0;
3188                 req->ring_ptr = req->ring;
3189         } else
3190                 req->ring_ptr++;
3191
3192         sp->flags |= SRB_DMA_VALID;
3193
3194         /* Set chip new ring index. */
3195         WRT_REG_DWORD(req->req_q_in, req->ring_index);
3196         QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3197
3198         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3199         return QLA_SUCCESS;
3200
3201 queuing_error:
3202         if (tot_dsds)
3203                 scsi_dma_unmap(cmd);
3204
3205         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3206
3207         return QLA_FUNCTION_FAILED;
3208 }
3209
3210 void
3211 qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3212 {
3213         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3214         scsi_qla_host_t *vha = sp->fcport->vha;
3215         struct req_que *req = vha->req;
3216         struct tsk_mgmt_entry_fx00 tm_iocb;
3217         struct scsi_lun llun;
3218
3219         memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3220         tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3221         tm_iocb.entry_count = 1;
3222         tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3223         tm_iocb.handle_hi = 0;
3224         tm_iocb.timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3225         tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3226         tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3227         if (tm_iocb.control_flags == TCF_LUN_RESET) {
3228                 int_to_scsilun(fxio->u.tmf.lun, &llun);
3229                 host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3230                     sizeof(struct scsi_lun));
3231         }
3232
3233         memcpy((void __iomem *)ptm_iocb, &tm_iocb,
3234             sizeof(struct tsk_mgmt_entry_fx00));
3235         wmb();
3236 }
3237
3238 void
3239 qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3240 {
3241         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3242         scsi_qla_host_t *vha = sp->fcport->vha;
3243         struct req_que *req = vha->req;
3244         struct abort_iocb_entry_fx00 abt_iocb;
3245
3246         memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3247         abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3248         abt_iocb.entry_count = 1;
3249         abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3250         abt_iocb.abort_handle =
3251             cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3252         abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3253         abt_iocb.req_que_no = cpu_to_le16(req->id);
3254
3255         memcpy((void __iomem *)pabt_iocb, &abt_iocb,
3256             sizeof(struct abort_iocb_entry_fx00));
3257         wmb();
3258 }
3259
3260 void
3261 qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3262 {
3263         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3264         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3265         struct fc_bsg_job *bsg_job;
3266         struct fxdisc_entry_fx00 fx_iocb;
3267         uint8_t entry_cnt = 1;
3268
3269         memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3270         fx_iocb.entry_type = FX00_IOCB_TYPE;
3271         fx_iocb.handle = cpu_to_le32(sp->handle);
3272         fx_iocb.entry_count = entry_cnt;
3273
3274         if (sp->type == SRB_FXIOCB_DCMD) {
3275                 fx_iocb.func_num =
3276                     cpu_to_le16(sp->u.iocb_cmd.u.fxiocb.req_func_type);
3277                 fx_iocb.adapid = cpu_to_le32(fxio->u.fxiocb.adapter_id);
3278                 fx_iocb.adapid_hi = cpu_to_le32(fxio->u.fxiocb.adapter_id_hi);
3279                 fx_iocb.reserved_0 = cpu_to_le32(fxio->u.fxiocb.reserved_0);
3280                 fx_iocb.reserved_1 = cpu_to_le32(fxio->u.fxiocb.reserved_1);
3281                 fx_iocb.dataword_extra =
3282                     cpu_to_le32(fxio->u.fxiocb.req_data_extra);
3283
3284                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3285                         fx_iocb.req_dsdcnt = cpu_to_le16(1);
3286                         fx_iocb.req_xfrcnt =
3287                             cpu_to_le16(fxio->u.fxiocb.req_len);
3288                         fx_iocb.dseg_rq_address[0] =
3289                             cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
3290                         fx_iocb.dseg_rq_address[1] =
3291                             cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
3292                         fx_iocb.dseg_rq_len =
3293                             cpu_to_le32(fxio->u.fxiocb.req_len);
3294                 }
3295
3296                 if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3297                         fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3298                         fx_iocb.rsp_xfrcnt =
3299                             cpu_to_le16(fxio->u.fxiocb.rsp_len);
3300                         fx_iocb.dseg_rsp_address[0] =
3301                             cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
3302                         fx_iocb.dseg_rsp_address[1] =
3303                             cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
3304                         fx_iocb.dseg_rsp_len =
3305                             cpu_to_le32(fxio->u.fxiocb.rsp_len);
3306                 }
3307
3308                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3309                         fx_iocb.dataword =
3310                             cpu_to_le32(fxio->u.fxiocb.req_data);
3311                 }
3312                 fx_iocb.flags = fxio->u.fxiocb.flags;
3313         } else {
3314                 struct scatterlist *sg;
3315                 bsg_job = sp->u.bsg_job;
3316                 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3317                         &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
3318
3319                 fx_iocb.func_num = piocb_rqst->func_type;
3320                 fx_iocb.adapid = piocb_rqst->adapid;
3321                 fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3322                 fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3323                 fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3324                 fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3325                 fx_iocb.dataword = piocb_rqst->dataword;
3326                 fx_iocb.req_xfrcnt = cpu_to_le16(piocb_rqst->req_len);
3327                 fx_iocb.rsp_xfrcnt = cpu_to_le16(piocb_rqst->rsp_len);
3328
3329                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3330                         int avail_dsds, tot_dsds;
3331                         cont_a64_entry_t lcont_pkt;
3332                         cont_a64_entry_t *cont_pkt = NULL;
3333                         uint32_t *cur_dsd;
3334                         int index = 0, cont = 0;
3335
3336                         fx_iocb.req_dsdcnt =
3337                             cpu_to_le16(bsg_job->request_payload.sg_cnt);
3338                         tot_dsds =
3339                             cpu_to_le32(bsg_job->request_payload.sg_cnt);
3340                         cur_dsd = (uint32_t *)&fx_iocb.dseg_rq_address[0];
3341                         avail_dsds = 1;
3342                         for_each_sg(bsg_job->request_payload.sg_list, sg,
3343                             tot_dsds, index) {
3344                                 dma_addr_t sle_dma;
3345
3346                                 /* Allocate additional continuation packets? */
3347                                 if (avail_dsds == 0) {
3348                                         /*
3349                                          * Five DSDs are available in the Cont.
3350                                          * Type 1 IOCB.
3351                                          */
3352                                         memset(&lcont_pkt, 0,
3353                                             REQUEST_ENTRY_SIZE);
3354                                         cont_pkt =
3355                                             qlafx00_prep_cont_type1_iocb(
3356                                                 sp->fcport->vha->req,
3357                                                 &lcont_pkt);
3358                                         cur_dsd = (uint32_t *)
3359                                             lcont_pkt.dseg_0_address;
3360                                         avail_dsds = 5;
3361                                         cont = 1;
3362                                         entry_cnt++;
3363                                 }
3364
3365                                 sle_dma = sg_dma_address(sg);
3366                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3367                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3368                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3369                                 avail_dsds--;
3370
3371                                 if (avail_dsds == 0 && cont == 1) {
3372                                         cont = 0;
3373                                         memcpy_toio(
3374                                             (void __iomem *)cont_pkt,
3375                                             &lcont_pkt, REQUEST_ENTRY_SIZE);
3376                                         ql_dump_buffer(
3377                                             ql_dbg_user + ql_dbg_verbose,
3378                                             sp->fcport->vha, 0x3042,
3379                                             (uint8_t *)&lcont_pkt,
3380                                              REQUEST_ENTRY_SIZE);
3381                                 }
3382                         }
3383                         if (avail_dsds != 0 && cont == 1) {
3384                                 memcpy_toio((void __iomem *)cont_pkt,
3385                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3386                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3387                                     sp->fcport->vha, 0x3043,
3388                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3389                         }
3390                 }
3391
3392                 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3393                         int avail_dsds, tot_dsds;
3394                         cont_a64_entry_t lcont_pkt;
3395                         cont_a64_entry_t *cont_pkt = NULL;
3396                         uint32_t *cur_dsd;
3397                         int index = 0, cont = 0;
3398
3399                         fx_iocb.rsp_dsdcnt =
3400                            cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3401                         tot_dsds = cpu_to_le32(bsg_job->reply_payload.sg_cnt);
3402                         cur_dsd = (uint32_t *)&fx_iocb.dseg_rsp_address[0];
3403                         avail_dsds = 1;
3404
3405                         for_each_sg(bsg_job->reply_payload.sg_list, sg,
3406                             tot_dsds, index) {
3407                                 dma_addr_t sle_dma;
3408
3409                                 /* Allocate additional continuation packets? */
3410                                 if (avail_dsds == 0) {
3411                                         /*
3412                                         * Five DSDs are available in the Cont.
3413                                         * Type 1 IOCB.
3414                                         */
3415                                         memset(&lcont_pkt, 0,
3416                                             REQUEST_ENTRY_SIZE);
3417                                         cont_pkt =
3418                                             qlafx00_prep_cont_type1_iocb(
3419                                                 sp->fcport->vha->req,
3420                                                 &lcont_pkt);
3421                                         cur_dsd = (uint32_t *)
3422                                             lcont_pkt.dseg_0_address;
3423                                         avail_dsds = 5;
3424                                         cont = 1;
3425                                         entry_cnt++;
3426                                 }
3427
3428                                 sle_dma = sg_dma_address(sg);
3429                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3430                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3431                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3432                                 avail_dsds--;
3433
3434                                 if (avail_dsds == 0 && cont == 1) {
3435                                         cont = 0;
3436                                         memcpy_toio((void __iomem *)cont_pkt,
3437                                             &lcont_pkt,
3438                                             REQUEST_ENTRY_SIZE);
3439                                         ql_dump_buffer(
3440                                             ql_dbg_user + ql_dbg_verbose,
3441                                             sp->fcport->vha, 0x3045,
3442                                             (uint8_t *)&lcont_pkt,
3443                                             REQUEST_ENTRY_SIZE);
3444                                 }
3445                         }
3446                         if (avail_dsds != 0 && cont == 1) {
3447                                 memcpy_toio((void __iomem *)cont_pkt,
3448                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3449                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3450                                     sp->fcport->vha, 0x3046,
3451                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3452                         }
3453                 }
3454
3455                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3456                         fx_iocb.dataword = cpu_to_le32(piocb_rqst->dataword);
3457                 fx_iocb.flags = piocb_rqst->flags;
3458                 fx_iocb.entry_count = entry_cnt;
3459         }
3460
3461         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3462             sp->fcport->vha, 0x3047,
3463             (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));
3464
3465         memcpy((void __iomem *)pfxiocb, &fx_iocb,
3466             sizeof(struct fxdisc_entry_fx00));
3467         wmb();
3468 }