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
 152                 clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 153
 154         } else {
 155                 ql_dbg(ql_dbg_mbx, vha, 0x112c,
 156                     "Cmd=%x Polling Mode.\n", command);
 157
 158                 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 159                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 160
 161                 wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 162                 while (!ha->flags.mbox_int) {
 163                         if (time_after(jiffies, wait_time))
 164                                 break;
 165
 166                         /* Check for pending interrupts. */
 167                         qla2x00_poll(ha->rsp_q_map[0]);
 168
 169                         if (!ha->flags.mbox_int &&
 170                             !(IS_QLA2200(ha) &&
 171                             command == MBC_LOAD_RISC_RAM_EXTENDED))
 172                                 usleep_range(10000, 11000);
 173                 } /* while */
 174                 ql_dbg(ql_dbg_mbx, vha, 0x112d,
 175                     "Waited %d sec.\n",
 176                     (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 177         }
 178
 179         /* Check whether we timed out */
 180         if (ha->flags.mbox_int) {
 181                 uint32_t *iptr2;
 182
 183                 ql_dbg(ql_dbg_mbx, vha, 0x112e,
 184                     "Cmd=%x completed.\n", command);
 185
 186                 /* Got interrupt. Clear the flag. */
 187                 ha->flags.mbox_int = 0;
 188                 clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 189
 190                 if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 191                         rval = QLA_FUNCTION_FAILED;
 192
 193                 /* Load return mailbox registers. */
 194                 iptr2 = mcp->mb;
 195                 iptr = (uint32_t *)&ha->mailbox_out32[0];
 196                 mboxes = mcp->in_mb;
 197                 for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 198                         if (mboxes & BIT_0)
 199                                 *iptr2 = *iptr;
 200
 201                         mboxes >>= 1;
 202                         iptr2++;
 203                         iptr++;
 204                 }
 205         } else {
 206
 207                 rval = QLA_FUNCTION_TIMEOUT;
 208         }
 209
 210         ha->flags.mbox_busy = 0;
 211
 212         /* Clean up */
 213         ha->mcp32 = NULL;
 214
 215         if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 216                 ql_dbg(ql_dbg_mbx, vha, 0x113a,
 217                     "checking for additional resp interrupt.\n");
 218
 219                 /* polling mode for non isp_abort commands. */
 220                 qla2x00_poll(ha->rsp_q_map[0]);
 221         }
 222
 223         if (rval == QLA_FUNCTION_TIMEOUT &&
 224             mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 225                 if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 226                     ha->flags.eeh_busy) {
 227                         /* not in dpc. schedule it for dpc to take over. */
 228                         ql_dbg(ql_dbg_mbx, vha, 0x115d,
 229                             "Timeout, schedule isp_abort_needed.\n");
 230
 231                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 232                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 233                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 234
 235                                 ql_log(ql_log_info, base_vha, 0x115e,
 236                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 237                                     "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 238                                     "abort.\n", command, mcp->mb[0],
 239                                     ha->flags.eeh_busy);
 240                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 241                                 qla2xxx_wake_dpc(vha);
 242                         }
 243                 } else if (!abort_active) {
 244                         /* call abort directly since we are in the DPC thread */
 245                         ql_dbg(ql_dbg_mbx, vha, 0x1160,
 246                             "Timeout, calling abort_isp.\n");
 247
 248                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 249                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 250                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 251
 252                                 ql_log(ql_log_info, base_vha, 0x1161,
 253                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 254                                     "mb[0]=0x%x. Scheduling ISP abort ",
 255                                     command, mcp->mb[0]);
 256
 257                                 set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 258                                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 259                                 if (ha->isp_ops->abort_isp(vha)) {
 260                                         /* Failed. retry later. */
 261                                         set_bit(ISP_ABORT_NEEDED,
 262                                             &vha->dpc_flags);
 263                                 }
 264                                 clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 265                                 ql_dbg(ql_dbg_mbx, vha, 0x1162,
 266                                     "Finished abort_isp.\n");
 267                         }
 268                 }
 269         }
 270
 271 premature_exit:
 272         /* Allow next mbx cmd to come in. */
 273         complete(&ha->mbx_cmd_comp);
 274
 275         if (rval) {
 276                 ql_log(ql_log_warn, base_vha, 0x1163,
 277                     "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
 278                     "mb[3]=%x, cmd=%x ****.\n",
 279                     mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
 280         } else {
 281                 ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 282         }
 283
 284         return rval;
 285 }
 286
 287 /*
 288  * qlafx00_driver_shutdown
 289  *      Indicate a driver shutdown to firmware.
 290  *
 291  * Input:
 292  *      ha = adapter block pointer.
 293  *
 294  * Returns:
 295  *      local function return status code.
 296  *
 297  * Context:
 298  *      Kernel context.
 299  */
 300 static int
 301 qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
 302 {
 303         int rval;
 304         struct mbx_cmd_32 mc;
 305         struct mbx_cmd_32 *mcp = &mc;
 306
 307         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
 308             "Entered %s.\n", __func__);
 309
 310         mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
 311         mcp->out_mb = MBX_0;
 312         mcp->in_mb = MBX_0;
 313         if (tmo)
 314                 mcp->tov = tmo;
 315         else
 316                 mcp->tov = MBX_TOV_SECONDS;
 317         mcp->flags = 0;
 318         rval = qlafx00_mailbox_command(vha, mcp);
 319
 320         if (rval != QLA_SUCCESS) {
 321                 ql_dbg(ql_dbg_mbx, vha, 0x1167,
 322                     "Failed=%x.\n", rval);
 323         } else {
 324                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
 325                     "Done %s.\n", __func__);
 326         }
 327
 328         return rval;
 329 }
 330
 331 /*
 332  * qlafx00_get_firmware_state
 333  *      Get adapter firmware state.
 334  *
 335  * Input:
 336  *      ha = adapter block pointer.
 337  *      TARGET_QUEUE_LOCK must be released.
 338  *      ADAPTER_STATE_LOCK must be released.
 339  *
 340  * Returns:
 341  *      qla7xxx local function return status code.
 342  *
 343  * Context:
 344  *      Kernel context.
 345  */
 346 static int
 347 qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
 348 {
 349         int rval;
 350         struct mbx_cmd_32 mc;
 351         struct mbx_cmd_32 *mcp = &mc;
 352
 353         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
 354             "Entered %s.\n", __func__);
 355
 356         mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 357         mcp->out_mb = MBX_0;
 358         mcp->in_mb = MBX_1|MBX_0;
 359         mcp->tov = MBX_TOV_SECONDS;
 360         mcp->flags = 0;
 361         rval = qlafx00_mailbox_command(vha, mcp);
 362
 363         /* Return firmware states. */
 364         states[0] = mcp->mb[1];
 365
 366         if (rval != QLA_SUCCESS) {
 367                 ql_dbg(ql_dbg_mbx, vha, 0x116a,
 368                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 369         } else {
 370                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
 371                     "Done %s.\n", __func__);
 372         }
 373         return rval;
 374 }
 375
 376 /*
 377  * qlafx00_init_firmware
 378  *      Initialize adapter firmware.
 379  *
 380  * Input:
 381  *      ha = adapter block pointer.
 382  *      dptr = Initialization control block pointer.
 383  *      size = size of initialization control block.
 384  *      TARGET_QUEUE_LOCK must be released.
 385  *      ADAPTER_STATE_LOCK must be released.
 386  *
 387  * Returns:
 388  *      qlafx00 local function return status code.
 389  *
 390  * Context:
 391  *      Kernel context.
 392  */
 393 int
 394 qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
 395 {
 396         int rval;
 397         struct mbx_cmd_32 mc;
 398         struct mbx_cmd_32 *mcp = &mc;
 399         struct qla_hw_data *ha = vha->hw;
 400
 401         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
 402             "Entered %s.\n", __func__);
 403
 404         mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
 405
 406         mcp->mb[1] = 0;
 407         mcp->mb[2] = MSD(ha->init_cb_dma);
 408         mcp->mb[3] = LSD(ha->init_cb_dma);
 409
 410         mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
 411         mcp->in_mb = MBX_0;
 412         mcp->buf_size = size;
 413         mcp->flags = MBX_DMA_OUT;
 414         mcp->tov = MBX_TOV_SECONDS;
 415         rval = qlafx00_mailbox_command(vha, mcp);
 416
 417         if (rval != QLA_SUCCESS) {
 418                 ql_dbg(ql_dbg_mbx, vha, 0x116d,
 419                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 420         } else {
 421                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
 422                     "Done %s.\n", __func__);
 423         }
 424         return rval;
 425 }
 426
 427 /*
 428  * qlafx00_mbx_reg_test
 429  */
 430 static int
 431 qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
 432 {
 433         int rval;
 434         struct mbx_cmd_32 mc;
 435         struct mbx_cmd_32 *mcp = &mc;
 436
 437         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
 438             "Entered %s.\n", __func__);
 439
 440
 441         mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
 442         mcp->mb[1] = 0xAAAA;
 443         mcp->mb[2] = 0x5555;
 444         mcp->mb[3] = 0xAA55;
 445         mcp->mb[4] = 0x55AA;
 446         mcp->mb[5] = 0xA5A5;
 447         mcp->mb[6] = 0x5A5A;
 448         mcp->mb[7] = 0x2525;
 449         mcp->mb[8] = 0xBBBB;
 450         mcp->mb[9] = 0x6666;
 451         mcp->mb[10] = 0xBB66;
 452         mcp->mb[11] = 0x66BB;
 453         mcp->mb[12] = 0xB6B6;
 454         mcp->mb[13] = 0x6B6B;
 455         mcp->mb[14] = 0x3636;
 456         mcp->mb[15] = 0xCCCC;
 457
 458
 459         mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 460                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 461         mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 462                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 463         mcp->buf_size = 0;
 464         mcp->flags = MBX_DMA_OUT;
 465         mcp->tov = MBX_TOV_SECONDS;
 466         rval = qlafx00_mailbox_command(vha, mcp);
 467         if (rval == QLA_SUCCESS) {
 468                 if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
 469                     mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
 470                         rval = QLA_FUNCTION_FAILED;
 471                 if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
 472                     mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
 473                         rval = QLA_FUNCTION_FAILED;
 474                 if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
 475                     mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
 476                         rval = QLA_FUNCTION_FAILED;
 477                 if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
 478                     mcp->mb[31] != 0xCCCC)
 479                         rval = QLA_FUNCTION_FAILED;
 480         }
 481
 482         if (rval != QLA_SUCCESS) {
 483                 ql_dbg(ql_dbg_mbx, vha, 0x1170,
 484                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 485         } else {
 486                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
 487                     "Done %s.\n", __func__);
 488         }
 489         return rval;
 490 }
 491
 492 /**
 493  * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 494  * @ha: HA context
 495  *
 496  * Returns 0 on success.
 497  */
 498 int
 499 qlafx00_pci_config(scsi_qla_host_t *vha)
 500 {
 501         uint16_t w;
 502         struct qla_hw_data *ha = vha->hw;
 503
 504         pci_set_master(ha->pdev);
 505         pci_try_set_mwi(ha->pdev);
 506
 507         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 508         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 509         w &= ~PCI_COMMAND_INTX_DISABLE;
 510         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 511
 512         /* PCIe -- adjust Maximum Read Request Size (2048). */
 513         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 514                 pcie_set_readrq(ha->pdev, 2048);
 515
 516         ha->chip_revision = ha->pdev->revision;
 517
 518         return QLA_SUCCESS;
 519 }
 520
 521 /**
 522  * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 523  * @ha: HA context
 524  *
 525   */
 526 static inline void
 527 qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
 528 {
 529         unsigned long flags = 0;
 530         struct qla_hw_data *ha = vha->hw;
 531         int i, core;
 532         uint32_t cnt;
 533
 534         /* Set all 4 cores in reset */
 535         for (i = 0; i < 4; i++) {
 536                 QLAFX00_SET_HBA_SOC_REG(ha,
 537                     (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
 538         }
 539
 540         /* Set all 4 core Clock gating control */
 541         for (i = 0; i < 4; i++) {
 542                 QLAFX00_SET_HBA_SOC_REG(ha,
 543                     (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
 544         }
 545
 546         /* Reset all units in Fabric */
 547         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x11F0101));
 548
 549         /* Reset all interrupt control registers */
 550         for (i = 0; i < 115; i++) {
 551                 QLAFX00_SET_HBA_SOC_REG(ha,
 552                     (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
 553         }
 554
 555         /* Reset Timers control registers. per core */
 556         for (core = 0; core < 4; core++)
 557                 for (i = 0; i < 8; i++)
 558                         QLAFX00_SET_HBA_SOC_REG(ha,
 559                             (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
 560
 561         /* Reset per core IRQ ack register */
 562         for (core = 0; core < 4; core++)
 563                 QLAFX00_SET_HBA_SOC_REG(ha,
 564                     (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
 565
 566         /* Set Fabric control and config to defaults */
 567         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
 568         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
 569
 570         spin_lock_irqsave(&ha->hardware_lock, flags);
 571
 572         /* Kick in Fabric units */
 573         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
 574
 575         /* Kick in Core0 to start boot process */
 576         QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
 577
 578         /* Wait 10secs for soft-reset to complete. */
 579         for (cnt = 10; cnt; cnt--) {
 580                 msleep(1000);
 581                 barrier();
 582         }
 583         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 584 }
 585
 586 /**
 587  * qlafx00_soft_reset() - Soft Reset ISPFx00.
 588  * @ha: HA context
 589  *
 590  * Returns 0 on success.
 591  */
 592 void
 593 qlafx00_soft_reset(scsi_qla_host_t *vha)
 594 {
 595         struct qla_hw_data *ha = vha->hw;
 596
 597         if (unlikely(pci_channel_offline(ha->pdev) &&
 598             ha->flags.pci_channel_io_perm_failure))
 599                 return;
 600
 601         ha->isp_ops->disable_intrs(ha);
 602         qlafx00_soc_cpu_reset(vha);
 603         ha->isp_ops->enable_intrs(ha);
 604 }
 605
 606 /**
 607  * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 608  * @ha: HA context
 609  *
 610  * Returns 0 on success.
 611  */
 612 int
 613 qlafx00_chip_diag(scsi_qla_host_t *vha)
 614 {
 615         int rval = 0;
 616         struct qla_hw_data *ha = vha->hw;
 617         struct req_que *req = ha->req_q_map[0];
 618
 619         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 620
 621         rval = qlafx00_mbx_reg_test(vha);
 622         if (rval) {
 623                 ql_log(ql_log_warn, vha, 0x1165,
 624                     "Failed mailbox send register test\n");
 625         } else {
 626                 /* Flag a successful rval */
 627                 rval = QLA_SUCCESS;
 628         }
 629         return rval;
 630 }
 631
 632 void
 633 qlafx00_config_rings(struct scsi_qla_host *vha)
 634 {
 635         struct qla_hw_data *ha = vha->hw;
 636         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 637         struct init_cb_fx *icb;
 638         struct req_que *req = ha->req_q_map[0];
 639         struct rsp_que *rsp = ha->rsp_q_map[0];
 640
 641         /* Setup ring parameters in initialization control block. */
 642         icb = (struct init_cb_fx *)ha->init_cb;
 643         icb->request_q_outpointer = __constant_cpu_to_le16(0);
 644         icb->response_q_inpointer = __constant_cpu_to_le16(0);
 645         icb->request_q_length = cpu_to_le16(req->length);
 646         icb->response_q_length = cpu_to_le16(rsp->length);
 647         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
 648         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
 649         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
 650         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
 651
 652         WRT_REG_DWORD(&reg->req_q_in, 0);
 653         WRT_REG_DWORD(&reg->req_q_out, 0);
 654
 655         WRT_REG_DWORD(&reg->rsp_q_in, 0);
 656         WRT_REG_DWORD(&reg->rsp_q_out, 0);
 657
 658         /* PCI posting */
 659         RD_REG_DWORD(&reg->rsp_q_out);
 660 }
 661
 662 char *
 663 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 664 {
 665         struct qla_hw_data *ha = vha->hw;
 666         int pcie_reg;
 667
 668         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 669         if (pcie_reg) {
 670                 strcpy(str, "PCIe iSA");
 671                 return str;
 672         }
 673         return str;
 674 }
 675
 676 char *
 677 qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str)
 678 {
 679         struct qla_hw_data *ha = vha->hw;
 680
 681         sprintf(str, "%s", ha->mr.fw_version);
 682         return str;
 683 }
 684
 685 void
 686 qlafx00_enable_intrs(struct qla_hw_data *ha)
 687 {
 688         unsigned long flags = 0;
 689
 690         spin_lock_irqsave(&ha->hardware_lock, flags);
 691         ha->interrupts_on = 1;
 692         QLAFX00_ENABLE_ICNTRL_REG(ha);
 693         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 694 }
 695
 696 void
 697 qlafx00_disable_intrs(struct qla_hw_data *ha)
 698 {
 699         unsigned long flags = 0;
 700
 701         spin_lock_irqsave(&ha->hardware_lock, flags);
 702         ha->interrupts_on = 0;
 703         QLAFX00_DISABLE_ICNTRL_REG(ha);
 704         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 705 }
 706
 707 static void
 708 qlafx00_tmf_iocb_timeout(void *data)
 709 {
 710         srb_t *sp = (srb_t *)data;
 711         struct srb_iocb *tmf = &sp->u.iocb_cmd;
 712
 713         tmf->u.tmf.comp_status = CS_TIMEOUT;
 714         complete(&tmf->u.tmf.comp);
 715 }
 716
 717 static void
 718 qlafx00_tmf_sp_done(void *data, void *ptr, int res)
 719 {
 720         srb_t *sp = (srb_t *)ptr;
 721         struct srb_iocb *tmf = &sp->u.iocb_cmd;
 722
 723         complete(&tmf->u.tmf.comp);
 724 }
 725
 726 static int
 727 qlafx00_async_tm_cmd(fc_port_t *fcport, uint32_t flags,
 728                      uint32_t lun, uint32_t tag)
 729 {
 730         scsi_qla_host_t *vha = fcport->vha;
 731         struct srb_iocb *tm_iocb;
 732         srb_t *sp;
 733         int rval = QLA_FUNCTION_FAILED;
 734
 735         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 736         if (!sp)
 737                 goto done;
 738
 739         tm_iocb = &sp->u.iocb_cmd;
 740         sp->type = SRB_TM_CMD;
 741         sp->name = "tmf";
 742         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
 743         tm_iocb->u.tmf.flags = flags;
 744         tm_iocb->u.tmf.lun = lun;
 745         tm_iocb->u.tmf.data = tag;
 746         sp->done = qlafx00_tmf_sp_done;
 747         tm_iocb->timeout = qlafx00_tmf_iocb_timeout;
 748         init_completion(&tm_iocb->u.tmf.comp);
 749
 750         rval = qla2x00_start_sp(sp);
 751         if (rval != QLA_SUCCESS)
 752                 goto done_free_sp;
 753
 754         ql_dbg(ql_dbg_async, vha, 0x507b,
 755             "Task management command issued target_id=%x\n",
 756             fcport->tgt_id);
 757
 758         wait_for_completion(&tm_iocb->u.tmf.comp);
 759
 760         rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
 761             QLA_SUCCESS : QLA_FUNCTION_FAILED;
 762
 763 done_free_sp:
 764         sp->free(vha, sp);
 765 done:
 766         return rval;
 767 }
 768
 769 int
 770 qlafx00_abort_target(fc_port_t *fcport, unsigned int l, int tag)
 771 {
 772         return qlafx00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 773 }
 774
 775 int
 776 qlafx00_lun_reset(fc_port_t *fcport, unsigned int l, int tag)
 777 {
 778         return qlafx00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 779 }
 780
 781 int
 782 qlafx00_iospace_config(struct qla_hw_data *ha)
 783 {
 784         if (pci_request_selected_regions(ha->pdev, ha->bars,
 785             QLA2XXX_DRIVER_NAME)) {
 786                 ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 787                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 788                     pci_name(ha->pdev));
 789                 goto iospace_error_exit;
 790         }
 791
 792         /* Use MMIO operations for all accesses. */
 793         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 794                 ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 795                     "Invalid pci I/O region size (%s).\n",
 796                     pci_name(ha->pdev));
 797                 goto iospace_error_exit;
 798         }
 799         if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 800                 ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 801                     "Invalid PCI mem BAR0 region size (%s), aborting\n",
 802                         pci_name(ha->pdev));
 803                 goto iospace_error_exit;
 804         }
 805
 806         ha->cregbase =
 807             ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 808         if (!ha->cregbase) {
 809                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 810                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 811                 goto iospace_error_exit;
 812         }
 813
 814         if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 815                 ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 816                     "region #2 not an MMIO resource (%s), aborting\n",
 817                     pci_name(ha->pdev));
 818                 goto iospace_error_exit;
 819         }
 820         if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 821                 ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 822                     "Invalid PCI mem BAR2 region size (%s), aborting\n",
 823                         pci_name(ha->pdev));
 824                 goto iospace_error_exit;
 825         }
 826
 827         ha->iobase =
 828             ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 829         if (!ha->iobase) {
 830                 ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 831                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 832                 goto iospace_error_exit;
 833         }
 834
 835         /* Determine queue resources */
 836         ha->max_req_queues = ha->max_rsp_queues = 1;
 837
 838         ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 839             "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 840             ha->bars, ha->cregbase, ha->iobase);
 841
 842         return 0;
 843
 844 iospace_error_exit:
 845         return -ENOMEM;
 846 }
 847
 848 static void
 849 qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 850 {
 851         struct qla_hw_data *ha = vha->hw;
 852         struct req_que *req = ha->req_q_map[0];
 853         struct rsp_que *rsp = ha->rsp_q_map[0];
 854
 855         req->length_fx00 = req->length;
 856         req->ring_fx00 = req->ring;
 857         req->dma_fx00 = req->dma;
 858
 859         rsp->length_fx00 = rsp->length;
 860         rsp->ring_fx00 = rsp->ring;
 861         rsp->dma_fx00 = rsp->dma;
 862
 863         ql_dbg(ql_dbg_init, vha, 0x012d,
 864             "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 865             "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 866             req->length_fx00, (u64)req->dma_fx00);
 867
 868         ql_dbg(ql_dbg_init, vha, 0x012e,
 869             "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 870             "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 871             rsp->length_fx00, (u64)rsp->dma_fx00);
 872 }
 873
 874 static int
 875 qlafx00_config_queues(struct scsi_qla_host *vha)
 876 {
 877         struct qla_hw_data *ha = vha->hw;
 878         struct req_que *req = ha->req_q_map[0];
 879         struct rsp_que *rsp = ha->rsp_q_map[0];
 880         dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 881
 882         req->length = ha->req_que_len;
 883         req->ring = (void *)ha->iobase + ha->req_que_off;
 884         req->dma = bar2_hdl + ha->req_que_off;
 885         if ((!req->ring) || (req->length == 0)) {
 886                 ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 887                     "Unable to allocate memory for req_ring\n");
 888                 return QLA_FUNCTION_FAILED;
 889         }
 890
 891         ql_dbg(ql_dbg_init, vha, 0x0130,
 892             "req: %p req_ring pointer %p req len 0x%x "
 893             "req off 0x%x\n, req->dma: 0x%llx",
 894             req, req->ring, req->length,
 895             ha->req_que_off, (u64)req->dma);
 896
 897         rsp->length = ha->rsp_que_len;
 898         rsp->ring = (void *)ha->iobase + ha->rsp_que_off;
 899         rsp->dma = bar2_hdl + ha->rsp_que_off;
 900         if ((!rsp->ring) || (rsp->length == 0)) {
 901                 ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 902                     "Unable to allocate memory for rsp_ring\n");
 903                 return QLA_FUNCTION_FAILED;
 904         }
 905
 906         ql_dbg(ql_dbg_init, vha, 0x0132,
 907             "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 908             "rsp off 0x%x, rsp->dma: 0x%llx\n",
 909             rsp, rsp->ring, rsp->length,
 910             ha->rsp_que_off, (u64)rsp->dma);
 911
 912         return QLA_SUCCESS;
 913 }
 914
 915 static int
 916 qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 917 {
 918         int rval = 0;
 919         unsigned long wtime;
 920         uint16_t wait_time;     /* Wait time */
 921         struct qla_hw_data *ha = vha->hw;
 922         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 923         uint32_t aenmbx, aenmbx7 = 0;
 924         uint32_t state[5];
 925         bool done = false;
 926
 927         /* 30 seconds wait - Adjust if required */
 928         wait_time = 30;
 929
 930         /* wait time before firmware ready */
 931         wtime = jiffies + (wait_time * HZ);
 932         do {
 933                 aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 934                 barrier();
 935                 ql_dbg(ql_dbg_mbx, vha, 0x0133,
 936                     "aenmbx: 0x%x\n", aenmbx);
 937
 938                 switch (aenmbx) {
 939                 case MBA_FW_NOT_STARTED:
 940                 case MBA_FW_STARTING:
 941                         break;
 942
 943                 case MBA_SYSTEM_ERR:
 944                 case MBA_REQ_TRANSFER_ERR:
 945                 case MBA_RSP_TRANSFER_ERR:
 946                 case MBA_FW_INIT_FAILURE:
 947                         qlafx00_soft_reset(vha);
 948                         break;
 949
 950                 case MBA_FW_RESTART_CMPLT:
 951                         /* Set the mbx and rqstq intr code */
 952                         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 953                         ha->mbx_intr_code = MSW(aenmbx7);
 954                         ha->rqstq_intr_code = LSW(aenmbx7);
 955                         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 956                         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 957                         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 958                         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 959                         WRT_REG_DWORD(&reg->aenmailbox0, 0);
 960                         RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 961                         ql_dbg(ql_dbg_init, vha, 0x0134,
 962                             "f/w returned mbx_intr_code: 0x%x, "
 963                             "rqstq_intr_code: 0x%x\n",
 964                             ha->mbx_intr_code, ha->rqstq_intr_code);
 965                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 966                         rval = QLA_SUCCESS;
 967                         done = true;
 968                         break;
 969
 970                 default:
 971                         /* If fw is apparently not ready. In order to continue,
 972                          * we might need to issue Mbox cmd, but the problem is
 973                          * that the DoorBell vector values that come with the
 974                          * 8060 AEN are most likely gone by now (and thus no
 975                          * bell would be rung on the fw side when mbox cmd is
 976                          * issued). We have to therefore grab the 8060 AEN
 977                          * shadow regs (filled in by FW when the last 8060
 978                          * AEN was being posted).
 979                          * Do the following to determine what is needed in
 980                          * order to get the FW ready:
 981                          * 1. reload the 8060 AEN values from the shadow regs
 982                          * 2. clear int status to get rid of possible pending
 983                          *    interrupts
 984                          * 3. issue Get FW State Mbox cmd to determine fw state
 985                          * Set the mbx and rqstq intr code from Shadow Regs
 986                          */
 987                         aenmbx7 = RD_REG_DWORD(&reg->initval7);
 988                         ha->mbx_intr_code = MSW(aenmbx7);
 989                         ha->rqstq_intr_code = LSW(aenmbx7);
 990                         ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 991                         ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 992                         ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 993                         ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 994                         ql_dbg(ql_dbg_init, vha, 0x0135,
 995                             "f/w returned mbx_intr_code: 0x%x, "
 996                             "rqstq_intr_code: 0x%x\n",
 997                             ha->mbx_intr_code, ha->rqstq_intr_code);
 998                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 999
1000                         /* Get the FW state */
1001                         rval = qlafx00_get_firmware_state(vha, state);
1002                         if (rval != QLA_SUCCESS) {
1003                                 /* Retry if timer has not expired */
1004                                 break;
1005                         }
1006
1007                         if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1008                                 /* Firmware is waiting to be
1009                                  * initialized by driver
1010                                  */
1011                                 rval = QLA_SUCCESS;
1012                                 done = true;
1013                                 break;
1014                         }
1015
1016                         /* Issue driver shutdown and wait until f/w recovers.
1017                          * Driver should continue to poll until 8060 AEN is
1018                          * received indicating firmware recovery.
1019                          */
1020                         ql_dbg(ql_dbg_init, vha, 0x0136,
1021                             "Sending Driver shutdown fw_state 0x%x\n",
1022                             state[0]);
1023
1024                         rval = qlafx00_driver_shutdown(vha, 10);
1025                         if (rval != QLA_SUCCESS) {
1026                                 rval = QLA_FUNCTION_FAILED;
1027                                 break;
1028                         }
1029                         msleep(500);
1030
1031                         wtime = jiffies + (wait_time * HZ);
1032                         break;
1033                 }
1034
1035                 if (!done) {
1036                         if (time_after_eq(jiffies, wtime)) {
1037                                 ql_dbg(ql_dbg_init, vha, 0x0137,
1038                                     "Init f/w failed: aen[7]: 0x%x\n",
1039                                     RD_REG_DWORD(&reg->aenmailbox7));
1040                                 rval = QLA_FUNCTION_FAILED;
1041                                 done = true;
1042                                 break;
1043                         }
1044                         /* Delay for a while */
1045                         msleep(500);
1046                 }
1047         } while (!done);
1048
1049         if (rval)
1050                 ql_dbg(ql_dbg_init, vha, 0x0138,
1051                     "%s **** FAILED ****.\n", __func__);
1052         else
1053                 ql_dbg(ql_dbg_init, vha, 0x0139,
1054                     "%s **** SUCCESS ****.\n", __func__);
1055
1056         return rval;
1057 }
1058
1059 /*
1060  * qlafx00_fw_ready() - Waits for firmware ready.
1061  * @ha: HA context
1062  *
1063  * Returns 0 on success.
1064  */
1065 int
1066 qlafx00_fw_ready(scsi_qla_host_t *vha)
1067 {
1068         int             rval;
1069         unsigned long   wtime;
1070         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1071         uint32_t        state[5];
1072
1073         rval = QLA_SUCCESS;
1074
1075         wait_time = 10;
1076
1077         /* wait time before firmware ready */
1078         wtime = jiffies + (wait_time * HZ);
1079
1080         /* Wait for ISP to finish init */
1081         if (!vha->flags.init_done)
1082                 ql_dbg(ql_dbg_init, vha, 0x013a,
1083                     "Waiting for init to complete...\n");
1084
1085         do {
1086                 rval = qlafx00_get_firmware_state(vha, state);
1087
1088                 if (rval == QLA_SUCCESS) {
1089                         if (state[0] == FSTATE_FX00_INITIALIZED) {
1090                                 ql_dbg(ql_dbg_init, vha, 0x013b,
1091                                     "fw_state=%x\n", state[0]);
1092                                 rval = QLA_SUCCESS;
1093                                         break;
1094                         }
1095                 }
1096                 rval = QLA_FUNCTION_FAILED;
1097
1098                 if (time_after_eq(jiffies, wtime))
1099                         break;
1100
1101                 /* Delay for a while */
1102                 msleep(500);
1103
1104                 ql_dbg(ql_dbg_init, vha, 0x013c,
1105                     "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1106         } while (1);
1107
1108
1109         if (rval)
1110                 ql_dbg(ql_dbg_init, vha, 0x013d,
1111                     "Firmware ready **** FAILED ****.\n");
1112         else
1113                 ql_dbg(ql_dbg_init, vha, 0x013e,
1114                     "Firmware ready **** SUCCESS ****.\n");
1115
1116         return rval;
1117 }
1118
1119 static int
1120 qlafx00_find_all_targets(scsi_qla_host_t *vha,
1121         struct list_head *new_fcports)
1122 {
1123         int             rval;
1124         uint16_t        tgt_id;
1125         fc_port_t       *fcport, *new_fcport;
1126         int             found;
1127         struct qla_hw_data *ha = vha->hw;
1128
1129         rval = QLA_SUCCESS;
1130
1131         if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1132                 return QLA_FUNCTION_FAILED;
1133
1134         if ((atomic_read(&vha->loop_down_timer) ||
1135              STATE_TRANSITION(vha))) {
1136                 atomic_set(&vha->loop_down_timer, 0);
1137                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1138                 return QLA_FUNCTION_FAILED;
1139         }
1140
1141         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1142             "Listing Target bit map...\n");
1143         ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
1144             0x2089, (uint8_t *)ha->gid_list, 32);
1145
1146         /* Allocate temporary rmtport for any new rmtports discovered. */
1147         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1148         if (new_fcport == NULL)
1149                 return QLA_MEMORY_ALLOC_FAILED;
1150
1151         for_each_set_bit(tgt_id, (void *)ha->gid_list,
1152             QLAFX00_TGT_NODE_LIST_SIZE) {
1153
1154                 /* Send get target node info */
1155                 new_fcport->tgt_id = tgt_id;
1156                 rval = qlafx00_fx_disc(vha, new_fcport,
1157                     FXDISC_GET_TGT_NODE_INFO);
1158                 if (rval != QLA_SUCCESS) {
1159                         ql_log(ql_log_warn, vha, 0x208a,
1160                             "Target info scan failed -- assuming zero-entry "
1161                             "result...\n");
1162                         continue;
1163                 }
1164
1165                 /* Locate matching device in database. */
1166                 found = 0;
1167                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1168                         if (memcmp(new_fcport->port_name,
1169                             fcport->port_name, WWN_SIZE))
1170                                 continue;
1171
1172                         found++;
1173
1174                         /*
1175                          * If tgt_id is same and state FCS_ONLINE, nothing
1176                          * changed.
1177                          */
1178                         if (fcport->tgt_id == new_fcport->tgt_id &&
1179                             atomic_read(&fcport->state) == FCS_ONLINE)
1180                                 break;
1181
1182                         /*
1183                          * Tgt ID changed or device was marked to be updated.
1184                          */
1185                         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1186                             "TGT-ID Change(%s): Present tgt id: "
1187                             "0x%x state: 0x%x "
1188                             "wwnn = %llx wwpn = %llx.\n",
1189                             __func__, fcport->tgt_id,
1190                             atomic_read(&fcport->state),
1191                             (unsigned long long)wwn_to_u64(fcport->node_name),
1192                             (unsigned long long)wwn_to_u64(fcport->port_name));
1193
1194                         ql_log(ql_log_info, vha, 0x208c,
1195                             "TGT-ID Announce(%s): Discovered tgt "
1196                             "id 0x%x wwnn = %llx "
1197                             "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1198                             (unsigned long long)
1199                             wwn_to_u64(new_fcport->node_name),
1200                             (unsigned long long)
1201                             wwn_to_u64(new_fcport->port_name));
1202
1203                         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1204                                 fcport->old_tgt_id = fcport->tgt_id;
1205                                 fcport->tgt_id = new_fcport->tgt_id;
1206                                 ql_log(ql_log_info, vha, 0x208d,
1207                                    "TGT-ID: New fcport Added: %p\n", fcport);
1208                                 qla2x00_update_fcport(vha, fcport);
1209                         } else {
1210                                 ql_log(ql_log_info, vha, 0x208e,
1211                                     " Existing TGT-ID %x did not get "
1212                                     " offline event from firmware.\n",
1213                                     fcport->old_tgt_id);
1214                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1215                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1216                                 kfree(new_fcport);
1217                                 return rval;
1218                         }
1219                         break;
1220                 }
1221
1222                 if (found)
1223                         continue;
1224
1225                 /* If device was not in our fcports list, then add it. */
1226                 list_add_tail(&new_fcport->list, new_fcports);
1227
1228                 /* Allocate a new replacement fcport. */
1229                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1230                 if (new_fcport == NULL)
1231                         return QLA_MEMORY_ALLOC_FAILED;
1232         }
1233
1234         kfree(new_fcport);
1235         return rval;
1236 }
1237
1238 /*
1239  * qlafx00_configure_all_targets
1240  *      Setup target devices with node ID's.
1241  *
1242  * Input:
1243  *      ha = adapter block pointer.
1244  *
1245  * Returns:
1246  *      0 = success.
1247  *      BIT_0 = error
1248  */
1249 static int
1250 qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1251 {
1252         int rval;
1253         fc_port_t *fcport, *rmptemp;
1254         LIST_HEAD(new_fcports);
1255
1256         rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1257             FXDISC_GET_TGT_NODE_LIST);
1258         if (rval != QLA_SUCCESS) {
1259                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1260                 return rval;
1261         }
1262
1263         rval = qlafx00_find_all_targets(vha, &new_fcports);
1264         if (rval != QLA_SUCCESS) {
1265                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1266                 return rval;
1267         }
1268
1269         /*
1270          * Delete all previous devices marked lost.
1271          */
1272         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1273                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1274                         break;
1275
1276                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1277                         if (fcport->port_type != FCT_INITIATOR)
1278                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1279                 }
1280         }
1281
1282         /*
1283          * Add the new devices to our devices list.
1284          */
1285         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1286                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1287                         break;
1288
1289                 qla2x00_update_fcport(vha, fcport);
1290                 list_move_tail(&fcport->list, &vha->vp_fcports);
1291                 ql_log(ql_log_info, vha, 0x208f,
1292                     "Attach new target id 0x%x wwnn = %llx "
1293                     "wwpn = %llx.\n",
1294                     fcport->tgt_id,
1295                     (unsigned long long)wwn_to_u64(fcport->node_name),
1296                     (unsigned long long)wwn_to_u64(fcport->port_name));
1297         }
1298
1299         /* Free all new device structures not processed. */
1300         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1301                 list_del(&fcport->list);
1302                 kfree(fcport);
1303         }
1304
1305         return rval;
1306 }
1307
1308 /*
1309  * qlafx00_configure_devices
1310  *      Updates Fibre Channel Device Database with what is actually on loop.
1311  *
1312  * Input:
1313  *      ha                = adapter block pointer.
1314  *
1315  * Returns:
1316  *      0 = success.
1317  *      1 = error.
1318  *      2 = database was full and device was not configured.
1319  */
1320 int
1321 qlafx00_configure_devices(scsi_qla_host_t *vha)
1322 {
1323         int  rval;
1324         unsigned long flags, save_flags;
1325         rval = QLA_SUCCESS;
1326
1327         save_flags = flags = vha->dpc_flags;
1328
1329         ql_dbg(ql_dbg_disc, vha, 0x2090,
1330             "Configure devices -- dpc flags =0x%lx\n", flags);
1331
1332         rval = qlafx00_configure_all_targets(vha);
1333
1334         if (rval == QLA_SUCCESS) {
1335                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1336                         rval = QLA_FUNCTION_FAILED;
1337                 } else {
1338                         atomic_set(&vha->loop_state, LOOP_READY);
1339                         ql_log(ql_log_info, vha, 0x2091,
1340                             "Device Ready\n");
1341                 }
1342         }
1343
1344         if (rval) {
1345                 ql_dbg(ql_dbg_disc, vha, 0x2092,
1346                     "%s *** FAILED ***.\n", __func__);
1347         } else {
1348                 ql_dbg(ql_dbg_disc, vha, 0x2093,
1349                     "%s: exiting normally.\n", __func__);
1350         }
1351         return rval;
1352 }
1353
1354 static void
1355 qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha)
1356 {
1357         struct qla_hw_data *ha = vha->hw;
1358         fc_port_t *fcport;
1359
1360         vha->flags.online = 0;
1361         ha->flags.chip_reset_done = 0;
1362         ha->mr.fw_hbt_en = 0;
1363         clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1364         vha->qla_stats.total_isp_aborts++;
1365
1366         ql_log(ql_log_info, vha, 0x013f,
1367             "Performing ISP error recovery - ha = %p.\n", ha);
1368
1369         ha->isp_ops->reset_chip(vha);
1370
1371         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1372                 atomic_set(&vha->loop_state, LOOP_DOWN);
1373                 atomic_set(&vha->loop_down_timer,
1374                     QLAFX00_LOOP_DOWN_TIME);
1375         } else {
1376                 if (!atomic_read(&vha->loop_down_timer))
1377                         atomic_set(&vha->loop_down_timer,
1378                             QLAFX00_LOOP_DOWN_TIME);
1379         }
1380
1381         /* Clear all async request states across all VPs. */
1382         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1383                 fcport->flags = 0;
1384                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1385                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1386         }
1387
1388         if (!ha->flags.eeh_busy) {
1389                 /* Requeue all commands in outstanding command list. */
1390                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1391         }
1392
1393         qla2x00_free_irqs(vha);
1394         set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1395
1396         /* Clear the Interrupts */
1397         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1398
1399         ql_log(ql_log_info, vha, 0x0140,
1400             "%s Done done - ha=%p.\n", __func__, ha);
1401 }
1402
1403 /**
1404  * qlafx00_init_response_q_entries() - Initializes response queue entries.
1405  * @ha: HA context
1406  *
1407  * Beginning of request ring has initialization control block already built
1408  * by nvram config routine.
1409  *
1410  * Returns 0 on success.
1411  */
1412 void
1413 qlafx00_init_response_q_entries(struct rsp_que *rsp)
1414 {
1415         uint16_t cnt;
1416         response_t *pkt;
1417
1418         rsp->ring_ptr = rsp->ring;
1419         rsp->ring_index    = 0;
1420         rsp->status_srb = NULL;
1421         pkt = rsp->ring_ptr;
1422         for (cnt = 0; cnt < rsp->length; cnt++) {
1423                 pkt->signature = RESPONSE_PROCESSED;
1424                 WRT_REG_DWORD(&pkt->signature, RESPONSE_PROCESSED);
1425                 pkt++;
1426         }
1427 }
1428
1429 int
1430 qlafx00_rescan_isp(scsi_qla_host_t *vha)
1431 {
1432         uint32_t status = QLA_FUNCTION_FAILED;
1433         struct qla_hw_data *ha = vha->hw;
1434         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1435         uint32_t aenmbx7;
1436
1437         qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1438
1439         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1440         ha->mbx_intr_code = MSW(aenmbx7);
1441         ha->rqstq_intr_code = LSW(aenmbx7);
1442         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1443         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1444         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1445         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1446
1447         ql_dbg(ql_dbg_disc, vha, 0x2094,
1448             "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1449             " Req que offset 0x%x Rsp que offset 0x%x\n",
1450             ha->mbx_intr_code, ha->rqstq_intr_code,
1451             ha->req_que_off, ha->rsp_que_len);
1452
1453         /* Clear the Interrupts */
1454         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1455
1456         status = qla2x00_init_rings(vha);
1457         if (!status) {
1458                 vha->flags.online = 1;
1459
1460                 /* if no cable then assume it's good */
1461                 if ((vha->device_flags & DFLG_NO_CABLE))
1462                         status = 0;
1463                 /* Register system information */
1464                 if (qlafx00_fx_disc(vha,
1465                     &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1466                         ql_dbg(ql_dbg_disc, vha, 0x2095,
1467                             "failed to register host info\n");
1468         }
1469         scsi_unblock_requests(vha->host);
1470         return status;
1471 }
1472
1473 void
1474 qlafx00_timer_routine(scsi_qla_host_t *vha)
1475 {
1476         struct qla_hw_data *ha = vha->hw;
1477         uint32_t fw_heart_beat;
1478         uint32_t aenmbx0;
1479         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1480
1481         /* Check firmware health */
1482         if (ha->mr.fw_hbt_cnt)
1483                 ha->mr.fw_hbt_cnt--;
1484         else {
1485                 if ((!ha->flags.mr_reset_hdlr_active) &&
1486                     (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1487                     (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1488                     (ha->mr.fw_hbt_en)) {
1489                         fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1490                         if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1491                                 ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1492                                 ha->mr.fw_hbt_miss_cnt = 0;
1493                         } else {
1494                                 ha->mr.fw_hbt_miss_cnt++;
1495                                 if (ha->mr.fw_hbt_miss_cnt ==
1496                                     QLAFX00_HEARTBEAT_MISS_CNT) {
1497                                         set_bit(ISP_ABORT_NEEDED,
1498                                             &vha->dpc_flags);
1499                                         qla2xxx_wake_dpc(vha);
1500                                         ha->mr.fw_hbt_miss_cnt = 0;
1501                                 }
1502                         }
1503                 }
1504                 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1505         }
1506
1507         if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1508                 /* Reset recovery to be performed in timer routine */
1509                 aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1510                 if (ha->mr.fw_reset_timer_exp) {
1511                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1512                         qla2xxx_wake_dpc(vha);
1513                         ha->mr.fw_reset_timer_exp = 0;
1514                 } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1515                         /* Wake up DPC to rescan the targets */
1516                         set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1517                         clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1518                         qla2xxx_wake_dpc(vha);
1519                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1520                 } else if ((aenmbx0 == MBA_FW_STARTING) &&
1521                     (!ha->mr.fw_hbt_en)) {
1522                         ha->mr.fw_hbt_en = 1;
1523                 } else if (!ha->mr.fw_reset_timer_tick) {
1524                         if (aenmbx0 == ha->mr.old_aenmbx0_state)
1525                                 ha->mr.fw_reset_timer_exp = 1;
1526                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1527                 } else if (aenmbx0 == 0xFFFFFFFF) {
1528                         uint32_t data0, data1;
1529
1530                         data0 = QLAFX00_RD_REG(ha,
1531                             QLAFX00_BAR1_BASE_ADDR_REG);
1532                         data1 = QLAFX00_RD_REG(ha,
1533                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1534
1535                         data0 &= 0xffff0000;
1536                         data1 &= 0x0000ffff;
1537
1538                         QLAFX00_WR_REG(ha,
1539                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1540                             (data0 | data1));
1541                 } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1542                         ha->mr.fw_reset_timer_tick =
1543                             QLAFX00_MAX_RESET_INTERVAL;
1544                 }
1545                 ha->mr.old_aenmbx0_state = aenmbx0;
1546                 ha->mr.fw_reset_timer_tick--;
1547         }
1548 }
1549
1550 /*
1551  *  qlfx00a_reset_initialize
1552  *      Re-initialize after a iSA device reset.
1553  *
1554  * Input:
1555  *      ha  = adapter block pointer.
1556  *
1557  * Returns:
1558  *      0 = success
1559  */
1560 int
1561 qlafx00_reset_initialize(scsi_qla_host_t *vha)
1562 {
1563         struct qla_hw_data *ha = vha->hw;
1564
1565         if (vha->device_flags & DFLG_DEV_FAILED) {
1566                 ql_dbg(ql_dbg_init, vha, 0x0142,
1567                     "Device in failed state\n");
1568                 return QLA_SUCCESS;
1569         }
1570
1571         ha->flags.mr_reset_hdlr_active = 1;
1572
1573         if (vha->flags.online) {
1574                 scsi_block_requests(vha->host);
1575                 qlafx00_abort_isp_cleanup(vha);
1576         }
1577
1578         ql_log(ql_log_info, vha, 0x0143,
1579             "(%s): succeeded.\n", __func__);
1580         ha->flags.mr_reset_hdlr_active = 0;
1581         return QLA_SUCCESS;
1582 }
1583
1584 /*
1585  *  qlafx00_abort_isp
1586  *      Resets ISP and aborts all outstanding commands.
1587  *
1588  * Input:
1589  *      ha  = adapter block pointer.
1590  *
1591  * Returns:
1592  *      0 = success
1593  */
1594 int
1595 qlafx00_abort_isp(scsi_qla_host_t *vha)
1596 {
1597         struct qla_hw_data *ha = vha->hw;
1598
1599         if (vha->flags.online) {
1600                 if (unlikely(pci_channel_offline(ha->pdev) &&
1601                     ha->flags.pci_channel_io_perm_failure)) {
1602                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1603                         return QLA_SUCCESS;
1604                 }
1605
1606                 scsi_block_requests(vha->host);
1607                 qlafx00_abort_isp_cleanup(vha);
1608         }
1609
1610         ql_log(ql_log_info, vha, 0x0145,
1611             "(%s): succeeded.\n", __func__);
1612
1613         return QLA_SUCCESS;
1614 }
1615
1616 static inline fc_port_t*
1617 qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1618 {
1619         fc_port_t       *fcport;
1620
1621         /* Check for matching device in remote port list. */
1622         fcport = NULL;
1623         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1624                 if (fcport->tgt_id == tgt_id) {
1625                         ql_dbg(ql_dbg_async, vha, 0x5072,
1626                             "Matching fcport(%p) found with TGT-ID: 0x%x "
1627                             "and Remote TGT_ID: 0x%x\n",
1628                             fcport, fcport->tgt_id, tgt_id);
1629                         break;
1630                 }
1631         }
1632         return fcport;
1633 }
1634
1635 static void
1636 qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1637 {
1638         fc_port_t       *fcport;
1639
1640         ql_log(ql_log_info, vha, 0x5073,
1641             "Detach TGT-ID: 0x%x\n", tgt_id);
1642
1643         fcport = qlafx00_get_fcport(vha, tgt_id);
1644         if (!fcport)
1645                 return;
1646
1647         qla2x00_mark_device_lost(vha, fcport, 0, 0);
1648
1649         return;
1650 }
1651
1652 int
1653 qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1654 {
1655         int rval = 0;
1656         uint32_t aen_code, aen_data;
1657
1658         aen_code = FCH_EVT_VENDOR_UNIQUE;
1659         aen_data = evt->u.aenfx.evtcode;
1660
1661         switch (evt->u.aenfx.evtcode) {
1662         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1663                 if (evt->u.aenfx.mbx[1] == 0) {
1664                         if (evt->u.aenfx.mbx[2] == 1) {
1665                                 if (!vha->flags.fw_tgt_reported)
1666                                         vha->flags.fw_tgt_reported = 1;
1667                                 atomic_set(&vha->loop_down_timer, 0);
1668                                 atomic_set(&vha->loop_state, LOOP_UP);
1669                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1670                                 qla2xxx_wake_dpc(vha);
1671                         } else if (evt->u.aenfx.mbx[2] == 2) {
1672                                 qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1673                         }
1674                 } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1675                         if (evt->u.aenfx.mbx[2] == 1) {
1676                                 if (!vha->flags.fw_tgt_reported)
1677                                         vha->flags.fw_tgt_reported = 1;
1678                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1679                         } else if (evt->u.aenfx.mbx[2] == 2) {
1680                                 vha->device_flags |= DFLG_NO_CABLE;
1681                                 qla2x00_mark_all_devices_lost(vha, 1);
1682                         }
1683                 }
1684                 break;
1685         case QLAFX00_MBA_LINK_UP:
1686                 aen_code = FCH_EVT_LINKUP;
1687                 aen_data = 0;
1688                 break;
1689         case QLAFX00_MBA_LINK_DOWN:
1690                 aen_code = FCH_EVT_LINKDOWN;
1691                 aen_data = 0;
1692                 break;
1693         }
1694
1695         fc_host_post_event(vha->host, fc_get_event_number(),
1696             aen_code, aen_data);
1697
1698         return rval;
1699 }
1700
1701 static void
1702 qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1703 {
1704         u64 port_name = 0, node_name = 0;
1705
1706         port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1707         node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1708
1709         fc_host_node_name(vha->host) = node_name;
1710         fc_host_port_name(vha->host) = port_name;
1711         if (!pinfo->port_type)
1712                 vha->hw->current_topology = ISP_CFG_F;
1713         if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1714                 atomic_set(&vha->loop_state, LOOP_READY);
1715         else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1716                 atomic_set(&vha->loop_state, LOOP_DOWN);
1717         vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1718 }
1719
1720 static void
1721 qla2x00_fxdisc_iocb_timeout(void *data)
1722 {
1723         srb_t *sp = (srb_t *)data;
1724         struct srb_iocb *lio = &sp->u.iocb_cmd;
1725
1726         complete(&lio->u.fxiocb.fxiocb_comp);
1727 }
1728
1729 static void
1730 qla2x00_fxdisc_sp_done(void *data, void *ptr, int res)
1731 {
1732         srb_t *sp = (srb_t *)ptr;
1733         struct srb_iocb *lio = &sp->u.iocb_cmd;
1734
1735         complete(&lio->u.fxiocb.fxiocb_comp);
1736 }
1737
1738 int
1739 qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t fx_type)
1740 {
1741         srb_t *sp;
1742         struct srb_iocb *fdisc;
1743         int rval = QLA_FUNCTION_FAILED;
1744         struct qla_hw_data *ha = vha->hw;
1745         struct host_system_info *phost_info;
1746         struct register_host_info *preg_hsi;
1747         struct new_utsname *p_sysid = NULL;
1748         struct timeval tv;
1749
1750         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1751         if (!sp)
1752                 goto done;
1753
1754         fdisc = &sp->u.iocb_cmd;
1755         switch (fx_type) {
1756         case FXDISC_GET_CONFIG_INFO:
1757         fdisc->u.fxiocb.flags =
1758                     SRB_FXDISC_RESP_DMA_VALID;
1759                 fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1760                 break;
1761         case FXDISC_GET_PORT_INFO:
1762                 fdisc->u.fxiocb.flags =
1763                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1764                 fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1765                 fdisc->u.fxiocb.req_data = fcport->port_id;
1766                 break;
1767         case FXDISC_GET_TGT_NODE_INFO:
1768                 fdisc->u.fxiocb.flags =
1769                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1770                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1771                 fdisc->u.fxiocb.req_data = fcport->tgt_id;
1772                 break;
1773         case FXDISC_GET_TGT_NODE_LIST:
1774                 fdisc->u.fxiocb.flags =
1775                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1776                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1777                 break;
1778         case FXDISC_REG_HOST_INFO:
1779                 fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1780                 fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1781                 p_sysid = utsname();
1782                 if (!p_sysid) {
1783                         ql_log(ql_log_warn, vha, 0x303c,
1784                             "Not able to get the system informtion\n");
1785                         goto done_free_sp;
1786                 }
1787                 break;
1788         default:
1789                 break;
1790         }
1791
1792         if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1793                 fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1794                     fdisc->u.fxiocb.req_len,
1795                     &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1796                 if (!fdisc->u.fxiocb.req_addr)
1797                         goto done_free_sp;
1798
1799                 if (fx_type == FXDISC_REG_HOST_INFO) {
1800                         preg_hsi = (struct register_host_info *)
1801                                 fdisc->u.fxiocb.req_addr;
1802                         phost_info = &preg_hsi->hsi;
1803                         memset(preg_hsi, 0, sizeof(struct register_host_info));
1804                         phost_info->os_type = OS_TYPE_LINUX;
1805                         strncpy(phost_info->sysname,
1806                             p_sysid->sysname, SYSNAME_LENGTH);
1807                         strncpy(phost_info->nodename,
1808                             p_sysid->nodename, NODENAME_LENGTH);
1809                         strncpy(phost_info->release,
1810                             p_sysid->release, RELEASE_LENGTH);
1811                         strncpy(phost_info->version,
1812                             p_sysid->version, VERSION_LENGTH);
1813                         strncpy(phost_info->machine,
1814                             p_sysid->machine, MACHINE_LENGTH);
1815                         strncpy(phost_info->domainname,
1816                             p_sysid->domainname, DOMNAME_LENGTH);
1817                         strncpy(phost_info->hostdriver,
1818                             QLA2XXX_VERSION, VERSION_LENGTH);
1819                         do_gettimeofday(&tv);
1820                         preg_hsi->utc = (uint64_t)tv.tv_sec;
1821                         ql_dbg(ql_dbg_init, vha, 0x0149,
1822                             "ISP%04X: Host registration with firmware\n",
1823                             ha->pdev->device);
1824                         ql_dbg(ql_dbg_init, vha, 0x014a,
1825                             "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1826                             phost_info->os_type,
1827                             phost_info->sysname,
1828                             phost_info->nodename);
1829                         ql_dbg(ql_dbg_init, vha, 0x014b,
1830                             "release = '%s', version = '%s'\n",
1831                             phost_info->release,
1832                             phost_info->version);
1833                         ql_dbg(ql_dbg_init, vha, 0x014c,
1834                             "machine = '%s' "
1835                             "domainname = '%s', hostdriver = '%s'\n",
1836                             phost_info->machine,
1837                             phost_info->domainname,
1838                             phost_info->hostdriver);
1839                         ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1840                             (uint8_t *)phost_info,
1841                             sizeof(struct host_system_info));
1842                 }
1843         }
1844
1845         if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1846                 fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1847                     fdisc->u.fxiocb.rsp_len,
1848                     &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1849                 if (!fdisc->u.fxiocb.rsp_addr)
1850                         goto done_unmap_req;
1851         }
1852
1853         sp->type = SRB_FXIOCB_DCMD;
1854         sp->name = "fxdisc";
1855         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1856         fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1857         fdisc->u.fxiocb.req_func_type = fx_type;
1858         sp->done = qla2x00_fxdisc_sp_done;
1859
1860         rval = qla2x00_start_sp(sp);
1861         if (rval != QLA_SUCCESS)
1862                 goto done_unmap_dma;
1863
1864         wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1865
1866         if (fx_type == FXDISC_GET_CONFIG_INFO) {
1867                 struct config_info_data *pinfo =
1868                     (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1869                 memcpy(&vha->hw->mr.product_name, pinfo->product_name,
1870                     sizeof(vha->hw->mr.product_name));
1871                 memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1872                     sizeof(vha->hw->mr.symbolic_name));
1873                 memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1874                     sizeof(vha->hw->mr.serial_num));
1875                 memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1876                     sizeof(vha->hw->mr.hw_version));
1877                 memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1878                     sizeof(vha->hw->mr.fw_version));
1879                 strim(vha->hw->mr.fw_version);
1880                 memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1881                     sizeof(vha->hw->mr.uboot_version));
1882                 memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1883                     sizeof(vha->hw->mr.fru_serial_num));
1884         } else if (fx_type == FXDISC_GET_PORT_INFO) {
1885                 struct port_info_data *pinfo =
1886                     (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1887                 memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1888                 memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1889                 vha->d_id.b.domain = pinfo->port_id[0];
1890                 vha->d_id.b.area = pinfo->port_id[1];
1891                 vha->d_id.b.al_pa = pinfo->port_id[2];
1892                 qlafx00_update_host_attr(vha, pinfo);
1893                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1894                     (uint8_t *)pinfo, 16);
1895         } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1896                 struct qlafx00_tgt_node_info *pinfo =
1897                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1898                 memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1899                 memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1900                 fcport->port_type = FCT_TARGET;
1901                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1902                     (uint8_t *)pinfo, 16);
1903         } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1904                 struct qlafx00_tgt_node_info *pinfo =
1905                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1906                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1907                     (uint8_t *)pinfo, 16);
1908                 memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1909         }
1910         rval = fdisc->u.fxiocb.result;
1911
1912 done_unmap_dma:
1913         if (fdisc->u.fxiocb.rsp_addr)
1914                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1915                     fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1916
1917 done_unmap_req:
1918         if (fdisc->u.fxiocb.req_addr)
1919                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
1920                     fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
1921 done_free_sp:
1922         sp->free(vha, sp);
1923 done:
1924         return rval;
1925 }
1926
1927 static void
1928 qlafx00_abort_iocb_timeout(void *data)
1929 {
1930         srb_t *sp = (srb_t *)data;
1931         struct srb_iocb *abt = &sp->u.iocb_cmd;
1932
1933         abt->u.abt.comp_status = CS_TIMEOUT;
1934         complete(&abt->u.abt.comp);
1935 }
1936
1937 static void
1938 qlafx00_abort_sp_done(void *data, void *ptr, int res)
1939 {
1940         srb_t *sp = (srb_t *)ptr;
1941         struct srb_iocb *abt = &sp->u.iocb_cmd;
1942
1943         complete(&abt->u.abt.comp);
1944 }
1945
1946 static int
1947 qlafx00_async_abt_cmd(srb_t *cmd_sp)
1948 {
1949         scsi_qla_host_t *vha = cmd_sp->fcport->vha;
1950         fc_port_t *fcport = cmd_sp->fcport;
1951         struct srb_iocb *abt_iocb;
1952         srb_t *sp;
1953         int rval = QLA_FUNCTION_FAILED;
1954
1955         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1956         if (!sp)
1957                 goto done;
1958
1959         abt_iocb = &sp->u.iocb_cmd;
1960         sp->type = SRB_ABT_CMD;
1961         sp->name = "abort";
1962         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1963         abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
1964         sp->done = qlafx00_abort_sp_done;
1965         abt_iocb->timeout = qlafx00_abort_iocb_timeout;
1966         init_completion(&abt_iocb->u.abt.comp);
1967
1968         rval = qla2x00_start_sp(sp);
1969         if (rval != QLA_SUCCESS)
1970                 goto done_free_sp;
1971
1972         ql_dbg(ql_dbg_async, vha, 0x507c,
1973             "Abort command issued - hdl=%x, target_id=%x\n",
1974             cmd_sp->handle, fcport->tgt_id);
1975
1976         wait_for_completion(&abt_iocb->u.abt.comp);
1977
1978         rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
1979             QLA_SUCCESS : QLA_FUNCTION_FAILED;
1980
1981 done_free_sp:
1982         sp->free(vha, sp);
1983 done:
1984         return rval;
1985 }
1986
1987 int
1988 qlafx00_abort_command(srb_t *sp)
1989 {
1990         unsigned long   flags = 0;
1991
1992         uint32_t        handle;
1993         fc_port_t       *fcport = sp->fcport;
1994         struct scsi_qla_host *vha = fcport->vha;
1995         struct qla_hw_data *ha = vha->hw;
1996         struct req_que *req = vha->req;
1997
1998         spin_lock_irqsave(&ha->hardware_lock, flags);
1999         for (handle = 1; handle < DEFAULT_OUTSTANDING_COMMANDS; handle++) {
2000                 if (req->outstanding_cmds[handle] == sp)
2001                         break;
2002         }
2003         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2004         if (handle == DEFAULT_OUTSTANDING_COMMANDS) {
2005                 /* Command not found. */
2006                 return QLA_FUNCTION_FAILED;
2007         }
2008         return qlafx00_async_abt_cmd(sp);
2009 }
2010
2011 /*
2012  * qlafx00_initialize_adapter
2013  *      Initialize board.
2014  *
2015  * Input:
2016  *      ha = adapter block pointer.
2017  *
2018  * Returns:
2019  *      0 = success
2020  */
2021 int
2022 qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2023 {
2024         int     rval;
2025         struct qla_hw_data *ha = vha->hw;
2026
2027         /* Clear adapter flags. */
2028         vha->flags.online = 0;
2029         ha->flags.chip_reset_done = 0;
2030         vha->flags.reset_active = 0;
2031         ha->flags.pci_channel_io_perm_failure = 0;
2032         ha->flags.eeh_busy = 0;
2033         ha->thermal_support = 0;
2034         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2035         atomic_set(&vha->loop_state, LOOP_DOWN);
2036         vha->device_flags = DFLG_NO_CABLE;
2037         vha->dpc_flags = 0;
2038         vha->flags.management_server_logged_in = 0;
2039         vha->marker_needed = 0;
2040         ha->isp_abort_cnt = 0;
2041         ha->beacon_blink_led = 0;
2042
2043         set_bit(0, ha->req_qid_map);
2044         set_bit(0, ha->rsp_qid_map);
2045
2046         ql_dbg(ql_dbg_init, vha, 0x0147,
2047             "Configuring PCI space...\n");
2048
2049         rval = ha->isp_ops->pci_config(vha);
2050         if (rval) {
2051                 ql_log(ql_log_warn, vha, 0x0148,
2052                     "Unable to configure PCI space.\n");
2053                 return rval;
2054         }
2055
2056         rval = qlafx00_init_fw_ready(vha);
2057         if (rval != QLA_SUCCESS)
2058                 return rval;
2059
2060         qlafx00_save_queue_ptrs(vha);
2061
2062         rval = qlafx00_config_queues(vha);
2063         if (rval != QLA_SUCCESS)
2064                 return rval;
2065
2066         /*
2067          * Allocate the array of outstanding commands
2068          * now that we know the firmware resources.
2069          */
2070         rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2071         if (rval != QLA_SUCCESS)
2072                 return rval;
2073
2074         rval = qla2x00_init_rings(vha);
2075         ha->flags.chip_reset_done = 1;
2076
2077         return rval;
2078 }
2079
2080 uint32_t
2081 qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2082                       char *buf)
2083 {
2084         scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2085         int rval = QLA_FUNCTION_FAILED;
2086         uint32_t state[1];
2087
2088         if (qla2x00_reset_active(vha))
2089                 ql_log(ql_log_warn, vha, 0x70ce,
2090                     "ISP reset active.\n");
2091         else if (!vha->hw->flags.eeh_busy) {
2092                 rval = qlafx00_get_firmware_state(vha, state);
2093         }
2094         if (rval != QLA_SUCCESS)
2095                 memset(state, -1, sizeof(state));
2096
2097         return state[0];
2098 }
2099
2100 void
2101 qlafx00_get_host_speed(struct Scsi_Host *shost)
2102 {
2103         struct qla_hw_data *ha = ((struct scsi_qla_host *)
2104                                         (shost_priv(shost)))->hw;
2105         u32 speed = FC_PORTSPEED_UNKNOWN;
2106
2107         switch (ha->link_data_rate) {
2108         case QLAFX00_PORT_SPEED_2G:
2109                 speed = FC_PORTSPEED_2GBIT;
2110                 break;
2111         case QLAFX00_PORT_SPEED_4G:
2112                 speed = FC_PORTSPEED_4GBIT;
2113                 break;
2114         case QLAFX00_PORT_SPEED_8G:
2115                 speed = FC_PORTSPEED_8GBIT;
2116                 break;
2117         case QLAFX00_PORT_SPEED_10G:
2118                 speed = FC_PORTSPEED_10GBIT;
2119                 break;
2120         }
2121         fc_host_speed(shost) = speed;
2122 }
2123
2124 /** QLAFX00 specific ISR implementation functions */
2125
2126 static inline void
2127 qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2128                      uint32_t sense_len, struct rsp_que *rsp, int res)
2129 {
2130         struct scsi_qla_host *vha = sp->fcport->vha;
2131         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2132         uint32_t track_sense_len;
2133
2134         SET_FW_SENSE_LEN(sp, sense_len);
2135
2136         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2137                 sense_len = SCSI_SENSE_BUFFERSIZE;
2138
2139         SET_CMD_SENSE_LEN(sp, sense_len);
2140         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2141         track_sense_len = sense_len;
2142
2143         if (sense_len > par_sense_len)
2144                 sense_len = par_sense_len;
2145
2146         memcpy(cp->sense_buffer, sense_data, sense_len);
2147
2148         SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2149
2150         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2151         track_sense_len -= sense_len;
2152         SET_CMD_SENSE_LEN(sp, track_sense_len);
2153
2154         ql_dbg(ql_dbg_io, vha, 0x304d,
2155             "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2156             sense_len, par_sense_len, track_sense_len);
2157         if (GET_FW_SENSE_LEN(sp) > 0) {
2158                 rsp->status_srb = sp;
2159                 cp->result = res;
2160         }
2161
2162         if (sense_len) {
2163                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2164                     "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
2165                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
2166                     cp);
2167                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2168                     cp->sense_buffer, sense_len);
2169         }
2170 }
2171
2172 static void
2173 qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2174                       struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2175                       uint16_t sstatus, uint16_t cpstatus)
2176 {
2177         struct srb_iocb *tmf;
2178
2179         tmf = &sp->u.iocb_cmd;
2180         if (cpstatus != CS_COMPLETE ||
2181             (sstatus & SS_RESPONSE_INFO_LEN_VALID))
2182                 cpstatus = CS_INCOMPLETE;
2183         tmf->u.tmf.comp_status = cpstatus;
2184         sp->done(vha, sp, 0);
2185 }
2186
2187 static void
2188 qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2189                          struct abort_iocb_entry_fx00 *pkt)
2190 {
2191         const char func[] = "ABT_IOCB";
2192         srb_t *sp;
2193         struct srb_iocb *abt;
2194
2195         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2196         if (!sp)
2197                 return;
2198
2199         abt = &sp->u.iocb_cmd;
2200         abt->u.abt.comp_status = le32_to_cpu(pkt->tgt_id_sts);
2201         sp->done(vha, sp, 0);
2202 }
2203
2204 static void
2205 qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2206                          struct ioctl_iocb_entry_fx00 *pkt)
2207 {
2208         const char func[] = "IOSB_IOCB";
2209         srb_t *sp;
2210         struct fc_bsg_job *bsg_job;
2211         struct srb_iocb *iocb_job;
2212         int res;
2213         struct qla_mt_iocb_rsp_fx00 fstatus;
2214         uint8_t *fw_sts_ptr;
2215
2216         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2217         if (!sp)
2218                 return;
2219
2220         if (sp->type == SRB_FXIOCB_DCMD) {
2221                 iocb_job = &sp->u.iocb_cmd;
2222                 iocb_job->u.fxiocb.seq_number = le32_to_cpu(pkt->seq_no);
2223                 iocb_job->u.fxiocb.fw_flags = le32_to_cpu(pkt->fw_iotcl_flags);
2224                 iocb_job->u.fxiocb.result = le32_to_cpu(pkt->status);
2225                 if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2226                         iocb_job->u.fxiocb.req_data =
2227                             le32_to_cpu(pkt->dataword_r);
2228         } else {
2229                 bsg_job = sp->u.bsg_job;
2230
2231                 memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2232
2233                 fstatus.reserved_1 = pkt->reserved_0;
2234                 fstatus.func_type = pkt->comp_func_num;
2235                 fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2236                 fstatus.ioctl_data = pkt->dataword_r;
2237                 fstatus.adapid = pkt->adapid;
2238                 fstatus.adapid_hi = pkt->adapid_hi;
2239                 fstatus.reserved_2 = pkt->reserved_1;
2240                 fstatus.res_count = pkt->residuallen;
2241                 fstatus.status = pkt->status;
2242                 fstatus.seq_number = pkt->seq_no;
2243                 memcpy(fstatus.reserved_3,
2244                     pkt->reserved_2, 20 * sizeof(uint8_t));
2245
2246                 fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
2247                     sizeof(struct fc_bsg_reply);
2248
2249                 memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
2250                     sizeof(struct qla_mt_iocb_rsp_fx00));
2251                 bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2252                         sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2253
2254                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2255                     sp->fcport->vha, 0x5080,
2256                     (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));
2257
2258                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2259                     sp->fcport->vha, 0x5074,
2260                     (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));
2261
2262                 res = bsg_job->reply->result = DID_OK << 16;
2263                 bsg_job->reply->reply_payload_rcv_len =
2264                     bsg_job->reply_payload.payload_len;
2265         }
2266         sp->done(vha, sp, res);
2267 }
2268
2269 /**
2270  * qlafx00_status_entry() - Process a Status IOCB entry.
2271  * @ha: SCSI driver HA context
2272  * @pkt: Entry pointer
2273  */
2274 static void
2275 qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2276 {
2277         srb_t           *sp;
2278         fc_port_t       *fcport;
2279         struct scsi_cmnd *cp;
2280         struct sts_entry_fx00 *sts;
2281         uint16_t        comp_status;
2282         uint16_t        scsi_status;
2283         uint16_t        ox_id;
2284         uint8_t         lscsi_status;
2285         int32_t         resid;
2286         uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2287             fw_resid_len;
2288         uint8_t         *rsp_info = NULL, *sense_data = NULL;
2289         struct qla_hw_data *ha = vha->hw;
2290         uint32_t hindex, handle;
2291         uint16_t que;
2292         struct req_que *req;
2293         int logit = 1;
2294         int res = 0;
2295
2296         sts = (struct sts_entry_fx00 *) pkt;
2297
2298         comp_status = le16_to_cpu(sts->comp_status);
2299         scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2300         hindex = sts->handle;
2301         handle = LSW(hindex);
2302
2303         que = MSW(hindex);
2304         req = ha->req_q_map[que];
2305
2306         /* Validate handle. */
2307         if (handle < req->num_outstanding_cmds)
2308                 sp = req->outstanding_cmds[handle];
2309         else
2310                 sp = NULL;
2311
2312         if (sp == NULL) {
2313                 ql_dbg(ql_dbg_io, vha, 0x3034,
2314                     "Invalid status handle (0x%x).\n", handle);
2315
2316                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2317                 qla2xxx_wake_dpc(vha);
2318                 return;
2319         }
2320
2321         if (sp->type == SRB_TM_CMD) {
2322                 req->outstanding_cmds[handle] = NULL;
2323                 qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2324                     scsi_status, comp_status);
2325                 return;
2326         }
2327
2328         /* Fast path completion. */
2329         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2330                 qla2x00_do_host_ramp_up(vha);
2331                 qla2x00_process_completed_request(vha, req, handle);
2332                 return;
2333         }
2334
2335         req->outstanding_cmds[handle] = NULL;
2336         cp = GET_CMD_SP(sp);
2337         if (cp == NULL) {
2338                 ql_dbg(ql_dbg_io, vha, 0x3048,
2339                     "Command already returned (0x%x/%p).\n",
2340                     handle, sp);
2341
2342                 return;
2343         }
2344
2345         lscsi_status = scsi_status & STATUS_MASK;
2346
2347         fcport = sp->fcport;
2348
2349         ox_id = 0;
2350         sense_len = par_sense_len = rsp_info_len = resid_len =
2351                 fw_resid_len = 0;
2352         if (scsi_status & SS_SENSE_LEN_VALID)
2353                 sense_len = le32_to_cpu(sts->sense_len);
2354         if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2355                 resid_len = le32_to_cpu(sts->residual_len);
2356         if (comp_status == CS_DATA_UNDERRUN)
2357                 fw_resid_len = le32_to_cpu(sts->residual_len);
2358         rsp_info = sense_data = sts->data;
2359         par_sense_len = sizeof(sts->data);
2360
2361         /* Check for overrun. */
2362         if (comp_status == CS_COMPLETE &&
2363             scsi_status & SS_RESIDUAL_OVER)
2364                 comp_status = CS_DATA_OVERRUN;
2365
2366         /*
2367          * Based on Host and scsi status generate status code for Linux
2368          */
2369         switch (comp_status) {
2370         case CS_COMPLETE:
2371         case CS_QUEUE_FULL:
2372                 if (scsi_status == 0) {
2373                         res = DID_OK << 16;
2374                         break;
2375                 }
2376                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2377                         resid = resid_len;
2378                         scsi_set_resid(cp, resid);
2379
2380                         if (!lscsi_status &&
2381                             ((unsigned)(scsi_bufflen(cp) - resid) <
2382                              cp->underflow)) {
2383                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2384                                     "Mid-layer underflow "
2385                                     "detected (0x%x of 0x%x bytes).\n",
2386                                     resid, scsi_bufflen(cp));
2387
2388                                 res = DID_ERROR << 16;
2389                                 break;
2390                         }
2391                 }
2392                 res = DID_OK << 16 | lscsi_status;
2393
2394                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2395                         ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2396                             "QUEUE FULL detected.\n");
2397                         break;
2398                 }
2399                 logit = 0;
2400                 if (lscsi_status != SS_CHECK_CONDITION)
2401                         break;
2402
2403                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2404                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2405                         break;
2406
2407                 qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2408                     rsp, res);
2409                 break;
2410
2411         case CS_DATA_UNDERRUN:
2412                 /* Use F/W calculated residual length. */
2413                 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2414                         resid = fw_resid_len;
2415                 else
2416                         resid = resid_len;
2417                 scsi_set_resid(cp, resid);
2418                 if (scsi_status & SS_RESIDUAL_UNDER) {
2419                         if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2420                             && fw_resid_len != resid_len) {
2421                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2422                                     "Dropped frame(s) detected "
2423                                     "(0x%x of 0x%x bytes).\n",
2424                                     resid, scsi_bufflen(cp));
2425
2426                                 res = DID_ERROR << 16 | lscsi_status;
2427                                 goto check_scsi_status;
2428                         }
2429
2430                         if (!lscsi_status &&
2431                             ((unsigned)(scsi_bufflen(cp) - resid) <
2432                             cp->underflow)) {
2433                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2434                                     "Mid-layer underflow "
2435                                     "detected (0x%x of 0x%x bytes, "
2436                                     "cp->underflow: 0x%x).\n",
2437                                     resid, scsi_bufflen(cp), cp->underflow);
2438
2439                                 res = DID_ERROR << 16;
2440                                 break;
2441                         }
2442                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2443                             lscsi_status != SAM_STAT_BUSY) {
2444                         /*
2445                          * scsi status of task set and busy are considered
2446                          * to be task not completed.
2447                          */
2448
2449                         ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2450                             "Dropped frame(s) detected (0x%x "
2451                             "of 0x%x bytes).\n", resid,
2452                             scsi_bufflen(cp));
2453
2454                         res = DID_ERROR << 16 | lscsi_status;
2455                         goto check_scsi_status;
2456                 } else {
2457                         ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2458                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2459                             scsi_status, lscsi_status);
2460                 }
2461
2462                 res = DID_OK << 16 | lscsi_status;
2463                 logit = 0;
2464
2465 check_scsi_status:
2466                 /*
2467                  * Check to see if SCSI Status is non zero. If so report SCSI
2468                  * Status.
2469                  */
2470                 if (lscsi_status != 0) {
2471                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2472                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2473                                     "QUEUE FULL detected.\n");
2474                                 logit = 1;
2475                                 break;
2476                         }
2477                         if (lscsi_status != SS_CHECK_CONDITION)
2478                                 break;
2479
2480                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2481                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2482                                 break;
2483
2484                         qlafx00_handle_sense(sp, sense_data, par_sense_len,
2485                             sense_len, rsp, res);
2486                 }
2487                 break;
2488
2489         case CS_PORT_LOGGED_OUT:
2490         case CS_PORT_CONFIG_CHG:
2491         case CS_PORT_BUSY:
2492         case CS_INCOMPLETE:
2493         case CS_PORT_UNAVAILABLE:
2494         case CS_TIMEOUT:
2495         case CS_RESET:
2496
2497                 /*
2498                  * We are going to have the fc class block the rport
2499                  * while we try to recover so instruct the mid layer
2500                  * to requeue until the class decides how to handle this.
2501                  */
2502                 res = DID_TRANSPORT_DISRUPTED << 16;
2503
2504                 ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2505                     "Port down status: port-state=0x%x.\n",
2506                     atomic_read(&fcport->state));
2507
2508                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2509                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2510                 break;
2511
2512         case CS_ABORTED:
2513                 res = DID_RESET << 16;
2514                 break;
2515
2516         default:
2517                 res = DID_ERROR << 16;
2518                 break;
2519         }
2520
2521         if (logit)
2522                 ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2523                     "FCP command status: 0x%x-0x%x (0x%x) "
2524                     "nexus=%ld:%d:%d tgt_id: 0x%x lscsi_status: 0x%x"
2525                     "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
2526                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x "
2527                     "sense_len=0x%x, par_sense_len=0x%x, rsp_info_len=0x%x\n",
2528                     comp_status, scsi_status, res, vha->host_no,
2529                     cp->device->id, cp->device->lun, fcport->tgt_id,
2530                     lscsi_status, cp->cmnd[0], cp->cmnd[1], cp->cmnd[2],
2531                     cp->cmnd[3], cp->cmnd[4], cp->cmnd[5], cp->cmnd[6],
2532                     cp->cmnd[7], cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp),
2533                     rsp_info_len, resid_len, fw_resid_len, sense_len,
2534                     par_sense_len, rsp_info_len);
2535
2536         if (!res)
2537                 qla2x00_do_host_ramp_up(vha);
2538
2539         if (rsp->status_srb == NULL)
2540                 sp->done(ha, sp, res);
2541 }
2542
2543 /**
2544  * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2545  * @ha: SCSI driver HA context
2546  * @pkt: Entry pointer
2547  *
2548  * Extended sense data.
2549  */
2550 static void
2551 qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2552 {
2553         uint8_t sense_sz = 0;
2554         struct qla_hw_data *ha = rsp->hw;
2555         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2556         srb_t *sp = rsp->status_srb;
2557         struct scsi_cmnd *cp;
2558         uint32_t sense_len;
2559         uint8_t *sense_ptr;
2560
2561         if (!sp) {
2562                 ql_dbg(ql_dbg_io, vha, 0x3037,
2563                     "no SP, sp = %p\n", sp);
2564                 return;
2565         }
2566
2567         if (!GET_FW_SENSE_LEN(sp)) {
2568                 ql_dbg(ql_dbg_io, vha, 0x304b,
2569                     "no fw sense data, sp = %p\n", sp);
2570                 return;
2571         }
2572         cp = GET_CMD_SP(sp);
2573         if (cp == NULL) {
2574                 ql_log(ql_log_warn, vha, 0x303b,
2575                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2576
2577                 rsp->status_srb = NULL;
2578                 return;
2579         }
2580
2581         if (!GET_CMD_SENSE_LEN(sp)) {
2582                 ql_dbg(ql_dbg_io, vha, 0x304c,
2583                     "no sense data, sp = %p\n", sp);
2584         } else {
2585                 sense_len = GET_CMD_SENSE_LEN(sp);
2586                 sense_ptr = GET_CMD_SENSE_PTR(sp);
2587                 ql_dbg(ql_dbg_io, vha, 0x304f,
2588                     "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2589                     sp, sense_len, sense_ptr);
2590
2591                 if (sense_len > sizeof(pkt->data))
2592                         sense_sz = sizeof(pkt->data);
2593                 else
2594                         sense_sz = sense_len;
2595
2596                 /* Move sense data. */
2597                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2598                     (uint8_t *)pkt, sizeof(sts_cont_entry_t));
2599                 memcpy(sense_ptr, pkt->data, sense_sz);
2600                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2601                     sense_ptr, sense_sz);
2602
2603                 sense_len -= sense_sz;
2604                 sense_ptr += sense_sz;
2605
2606                 SET_CMD_SENSE_PTR(sp, sense_ptr);
2607                 SET_CMD_SENSE_LEN(sp, sense_len);
2608         }
2609         sense_len = GET_FW_SENSE_LEN(sp);
2610         sense_len = (sense_len > sizeof(pkt->data)) ?
2611             (sense_len - sizeof(pkt->data)) : 0;
2612         SET_FW_SENSE_LEN(sp, sense_len);
2613
2614         /* Place command on done queue. */
2615         if (sense_len == 0) {
2616                 rsp->status_srb = NULL;
2617                 sp->done(ha, sp, cp->result);
2618         }
2619 }
2620
2621 /**
2622  * qlafx00_multistatus_entry() - Process Multi response queue entries.
2623  * @ha: SCSI driver HA context
2624  */
2625 static void
2626 qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2627         struct rsp_que *rsp, void *pkt)
2628 {
2629         srb_t           *sp;
2630         struct multi_sts_entry_fx00 *stsmfx;
2631         struct qla_hw_data *ha = vha->hw;
2632         uint32_t handle, hindex, handle_count, i;
2633         uint16_t que;
2634         struct req_que *req;
2635         uint32_t *handle_ptr;
2636
2637         stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2638
2639         handle_count = stsmfx->handle_count;
2640
2641         if (handle_count > MAX_HANDLE_COUNT) {
2642                 ql_dbg(ql_dbg_io, vha, 0x3035,
2643                     "Invalid handle count (0x%x).\n", handle_count);
2644                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2645                 qla2xxx_wake_dpc(vha);
2646                 return;
2647         }
2648
2649         handle_ptr = (uint32_t *) &stsmfx->handles[0];
2650
2651         for (i = 0; i < handle_count; i++) {
2652                 hindex = le32_to_cpu(*handle_ptr);
2653                 handle = LSW(hindex);
2654                 que = MSW(hindex);
2655                 req = ha->req_q_map[que];
2656
2657                 /* Validate handle. */
2658                 if (handle < req->num_outstanding_cmds)
2659                         sp = req->outstanding_cmds[handle];
2660                 else
2661                         sp = NULL;
2662
2663                 if (sp == NULL) {
2664                         ql_dbg(ql_dbg_io, vha, 0x3044,
2665                             "Invalid status handle (0x%x).\n", handle);
2666                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2667                         qla2xxx_wake_dpc(vha);
2668                         return;
2669                 }
2670                 qla2x00_process_completed_request(vha, req, handle);
2671                 handle_ptr++;
2672         }
2673 }
2674
2675 /**
2676  * qlafx00_error_entry() - Process an error entry.
2677  * @ha: SCSI driver HA context
2678  * @pkt: Entry pointer
2679  */
2680 static void
2681 qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2682                     struct sts_entry_fx00 *pkt, uint8_t estatus, uint8_t etype)
2683 {
2684         srb_t *sp;
2685         struct qla_hw_data *ha = vha->hw;
2686         const char func[] = "ERROR-IOCB";
2687         uint16_t que = MSW(pkt->handle);
2688         struct req_que *req = NULL;
2689         int res = DID_ERROR << 16;
2690
2691         ql_dbg(ql_dbg_async, vha, 0x507f,
2692             "type of error status in response: 0x%x\n", estatus);
2693
2694         req = ha->req_q_map[que];
2695
2696         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2697         if (sp) {
2698                 sp->done(ha, sp, res);
2699                 return;
2700         }
2701
2702         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2703         qla2xxx_wake_dpc(vha);
2704 }
2705
2706 /**
2707  * qlafx00_process_response_queue() - Process response queue entries.
2708  * @ha: SCSI driver HA context
2709  */
2710 static void
2711 qlafx00_process_response_queue(struct scsi_qla_host *vha,
2712         struct rsp_que *rsp)
2713 {
2714         struct sts_entry_fx00 *pkt;
2715         response_t *lptr;
2716
2717         if (!vha->flags.online)
2718                 return;
2719
2720         while (RD_REG_DWORD(&(rsp->ring_ptr->signature)) !=
2721             RESPONSE_PROCESSED) {
2722                 lptr = rsp->ring_ptr;
2723                 memcpy_fromio(rsp->rsp_pkt, lptr, sizeof(rsp->rsp_pkt));
2724                 pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2725
2726                 rsp->ring_index++;
2727                 if (rsp->ring_index == rsp->length) {
2728                         rsp->ring_index = 0;
2729                         rsp->ring_ptr = rsp->ring;
2730                 } else {
2731                         rsp->ring_ptr++;
2732                 }
2733
2734                 if (pkt->entry_status != 0 &&
2735                     pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2736                         qlafx00_error_entry(vha, rsp,
2737                             (struct sts_entry_fx00 *)pkt, pkt->entry_status,
2738                             pkt->entry_type);
2739                         goto next_iter;
2740                         continue;
2741                 }
2742
2743                 switch (pkt->entry_type) {
2744                 case STATUS_TYPE_FX00:
2745                         qlafx00_status_entry(vha, rsp, pkt);
2746                         break;
2747
2748                 case STATUS_CONT_TYPE_FX00:
2749                         qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2750                         break;
2751
2752                 case MULTI_STATUS_TYPE_FX00:
2753                         qlafx00_multistatus_entry(vha, rsp, pkt);
2754                         break;
2755
2756                 case ABORT_IOCB_TYPE_FX00:
2757                         qlafx00_abort_iocb_entry(vha, rsp->req,
2758                            (struct abort_iocb_entry_fx00 *)pkt);
2759                         break;
2760
2761                 case IOCTL_IOSB_TYPE_FX00:
2762                         qlafx00_ioctl_iosb_entry(vha, rsp->req,
2763                             (struct ioctl_iocb_entry_fx00 *)pkt);
2764                         break;
2765                 default:
2766                         /* Type Not Supported. */
2767                         ql_dbg(ql_dbg_async, vha, 0x5081,
2768                             "Received unknown response pkt type %x "
2769                             "entry status=%x.\n",
2770                             pkt->entry_type, pkt->entry_status);
2771                         break;
2772                 }
2773 next_iter:
2774                 WRT_REG_DWORD(&lptr->signature, RESPONSE_PROCESSED);
2775                 wmb();
2776         }
2777
2778         /* Adjust ring index */
2779         WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2780 }
2781
2782 /**
2783  * qlafx00_async_event() - Process aynchronous events.
2784  * @ha: SCSI driver HA context
2785  */
2786 static void
2787 qlafx00_async_event(scsi_qla_host_t *vha)
2788 {
2789         struct qla_hw_data *ha = vha->hw;
2790         struct device_reg_fx00 __iomem *reg;
2791         int data_size = 1;
2792
2793         reg = &ha->iobase->ispfx00;
2794         /* Setup to process RIO completion. */
2795         switch (ha->aenmb[0]) {
2796         case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2797                 ql_log(ql_log_warn, vha, 0x5079,
2798                     "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2799                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2800                 break;
2801
2802         case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2803                 ql_dbg(ql_dbg_async, vha, 0x5076,
2804                     "Asynchronous FW shutdown requested.\n");
2805                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2806                 qla2xxx_wake_dpc(vha);
2807                 break;
2808
2809         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2810                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2811                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2812                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2813                 ql_dbg(ql_dbg_async, vha, 0x5077,
2814                     "Asynchronous port Update received "
2815                     "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2816                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2817                 data_size = 4;
2818                 break;
2819         default:
2820                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2821                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2822                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2823                 ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2824                 ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2825                 ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2826                 ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2827                 ql_dbg(ql_dbg_async, vha, 0x5078,
2828                     "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2829                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2830                     ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2831                 break;
2832         }
2833         qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2834             (uint32_t *)ha->aenmb, data_size);
2835 }
2836
2837 /**
2838  *
2839  * qlafx00x_mbx_completion() - Process mailbox command completions.
2840  * @ha: SCSI driver HA context
2841  * @mb16: Mailbox16 register
2842  */
2843 static void
2844 qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2845 {
2846         uint16_t        cnt;
2847         uint16_t __iomem *wptr;
2848         struct qla_hw_data *ha = vha->hw;
2849         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2850
2851         if (!ha->mcp32)
2852                 ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2853
2854         /* Load return mailbox registers. */
2855         ha->flags.mbox_int = 1;
2856         ha->mailbox_out32[0] = mb0;
2857         wptr = (uint16_t __iomem *)&reg->mailbox17;
2858
2859         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2860                 ha->mailbox_out32[cnt] = RD_REG_WORD(wptr);
2861                 wptr++;
2862         }
2863 }
2864
2865 /**
2866  * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2867  * @irq:
2868  * @dev_id: SCSI driver HA context
2869  *
2870  * Called by system whenever the host adapter generates an interrupt.
2871  *
2872  * Returns handled flag.
2873  */
2874 irqreturn_t
2875 qlafx00_intr_handler(int irq, void *dev_id)
2876 {
2877         scsi_qla_host_t *vha;
2878         struct qla_hw_data *ha;
2879         struct device_reg_fx00 __iomem *reg;
2880         int             status;
2881         unsigned long   iter;
2882         uint32_t        stat;
2883         uint32_t        mb[8];
2884         struct rsp_que *rsp;
2885         unsigned long   flags;
2886         uint32_t clr_intr = 0;
2887
2888         rsp = (struct rsp_que *) dev_id;
2889         if (!rsp) {
2890                 ql_log(ql_log_info, NULL, 0x507d,
2891                     "%s: NULL response queue pointer.\n", __func__);
2892                 return IRQ_NONE;
2893         }
2894
2895         ha = rsp->hw;
2896         reg = &ha->iobase->ispfx00;
2897         status = 0;
2898
2899         if (unlikely(pci_channel_offline(ha->pdev)))
2900                 return IRQ_HANDLED;
2901
2902         spin_lock_irqsave(&ha->hardware_lock, flags);
2903         vha = pci_get_drvdata(ha->pdev);
2904         for (iter = 50; iter--; clr_intr = 0) {
2905                 stat = QLAFX00_RD_INTR_REG(ha);
2906                 if ((stat & QLAFX00_HST_INT_STS_BITS) == 0)
2907                         break;
2908
2909                 switch (stat & QLAFX00_HST_INT_STS_BITS) {
2910                 case QLAFX00_INTR_MB_CMPLT:
2911                 case QLAFX00_INTR_MB_RSP_CMPLT:
2912                 case QLAFX00_INTR_MB_ASYNC_CMPLT:
2913                 case QLAFX00_INTR_ALL_CMPLT:
2914                         mb[0] = RD_REG_WORD(&reg->mailbox16);
2915                         qlafx00_mbx_completion(vha, mb[0]);
2916                         status |= MBX_INTERRUPT;
2917                         clr_intr |= QLAFX00_INTR_MB_CMPLT;
2918                         break;
2919                 case QLAFX00_INTR_ASYNC_CMPLT:
2920                 case QLAFX00_INTR_RSP_ASYNC_CMPLT:
2921                         ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2922                         qlafx00_async_event(vha);
2923                         clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2924                         break;
2925                 case QLAFX00_INTR_RSP_CMPLT:
2926                         qlafx00_process_response_queue(vha, rsp);
2927                         clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2928                         break;
2929                 default:
2930                         ql_dbg(ql_dbg_async, vha, 0x507a,
2931                             "Unrecognized interrupt type (%d).\n", stat);
2932                         break;
2933                 }
2934                 QLAFX00_CLR_INTR_REG(ha, clr_intr);
2935                 QLAFX00_RD_INTR_REG(ha);
2936         }
2937         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2938
2939         if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2940             (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2941                 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2942                 complete(&ha->mbx_intr_comp);
2943         }
2944         return IRQ_HANDLED;
2945 }
2946
2947 /** QLAFX00 specific IOCB implementation functions */
2948
2949 static inline cont_a64_entry_t *
2950 qlafx00_prep_cont_type1_iocb(struct req_que *req,
2951                              cont_a64_entry_t *lcont_pkt)
2952 {
2953         cont_a64_entry_t *cont_pkt;
2954
2955         /* Adjust ring index. */
2956         req->ring_index++;
2957         if (req->ring_index == req->length) {
2958                 req->ring_index = 0;
2959                 req->ring_ptr = req->ring;
2960         } else {
2961                 req->ring_ptr++;
2962         }
2963
2964         cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2965
2966         /* Load packet defaults. */
2967         *((uint32_t *)(&lcont_pkt->entry_type)) =
2968             __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00);
2969
2970         return cont_pkt;
2971 }
2972
2973 static inline void
2974 qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2975                          uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2976 {
2977         uint16_t        avail_dsds;
2978         uint32_t        *cur_dsd;
2979         scsi_qla_host_t *vha;
2980         struct scsi_cmnd *cmd;
2981         struct scatterlist *sg;
2982         int i, cont;
2983         struct req_que *req;
2984         cont_a64_entry_t lcont_pkt;
2985         cont_a64_entry_t *cont_pkt;
2986
2987         vha = sp->fcport->vha;
2988         req = vha->req;
2989
2990         cmd = GET_CMD_SP(sp);
2991         cont = 0;
2992         cont_pkt = NULL;
2993
2994         /* Update entry type to indicate Command Type 3 IOCB */
2995         *((uint32_t *)(&lcmd_pkt->entry_type)) =
2996             __constant_cpu_to_le32(FX00_COMMAND_TYPE_7);
2997
2998         /* No data transfer */
2999         if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3000                 lcmd_pkt->byte_count = __constant_cpu_to_le32(0);
3001                 return;
3002         }
3003
3004         /* Set transfer direction */
3005         if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3006                 lcmd_pkt->cntrl_flags =
3007                     __constant_cpu_to_le16(TMF_WRITE_DATA);
3008                 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3009         } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3010                 lcmd_pkt->cntrl_flags =
3011                     __constant_cpu_to_le16(TMF_READ_DATA);
3012                 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3013         }
3014
3015         /* One DSD is available in the Command Type 3 IOCB */
3016         avail_dsds = 1;
3017         cur_dsd = (uint32_t *)&lcmd_pkt->dseg_0_address;
3018
3019         /* Load data segments */
3020         scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3021                 dma_addr_t      sle_dma;
3022
3023                 /* Allocate additional continuation packets? */
3024                 if (avail_dsds == 0) {
3025                         /*
3026                          * Five DSDs are available in the Continuation
3027                          * Type 1 IOCB.
3028                          */
3029                         memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3030                         cont_pkt =
3031                             qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3032                         cur_dsd = (uint32_t *)lcont_pkt.dseg_0_address;
3033                         avail_dsds = 5;
3034                         cont = 1;
3035                 }
3036
3037                 sle_dma = sg_dma_address(sg);
3038                 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3039                 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3040                 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3041                 avail_dsds--;
3042                 if (avail_dsds == 0 && cont == 1) {
3043                         cont = 0;
3044                         memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3045                             REQUEST_ENTRY_SIZE);
3046                 }
3047
3048         }
3049         if (avail_dsds != 0 && cont == 1) {
3050                 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3051                     REQUEST_ENTRY_SIZE);
3052         }
3053 }
3054
3055 /**
3056  * qlafx00_start_scsi() - Send a SCSI command to the ISP
3057  * @sp: command to send to the ISP
3058  *
3059  * Returns non-zero if a failure occurred, else zero.
3060  */
3061 int
3062 qlafx00_start_scsi(srb_t *sp)
3063 {
3064         int             ret, nseg;
3065         unsigned long   flags;
3066         uint32_t        index;
3067         uint32_t        handle;
3068         uint16_t        cnt;
3069         uint16_t        req_cnt;
3070         uint16_t        tot_dsds;
3071         struct req_que *req = NULL;
3072         struct rsp_que *rsp = NULL;
3073         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3074         struct scsi_qla_host *vha = sp->fcport->vha;
3075         struct qla_hw_data *ha = vha->hw;
3076         struct cmd_type_7_fx00 *cmd_pkt;
3077         struct cmd_type_7_fx00 lcmd_pkt;
3078         struct scsi_lun llun;
3079         char            tag[2];
3080
3081         /* Setup device pointers. */
3082         ret = 0;
3083
3084         rsp = ha->rsp_q_map[0];
3085         req = vha->req;
3086
3087         /* So we know we haven't pci_map'ed anything yet */
3088         tot_dsds = 0;
3089
3090         /* Forcing marker needed for now */
3091         vha->marker_needed = 0;
3092
3093         /* Send marker if required */
3094         if (vha->marker_needed != 0) {
3095                 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
3096                     QLA_SUCCESS)
3097                         return QLA_FUNCTION_FAILED;
3098                 vha->marker_needed = 0;
3099         }
3100
3101         /* Acquire ring specific lock */
3102         spin_lock_irqsave(&ha->hardware_lock, flags);
3103
3104         /* Check for room in outstanding command list. */
3105         handle = req->current_outstanding_cmd;
3106         for (index = 1; index < req->num_outstanding_cmds; index++) {
3107                 handle++;
3108                 if (handle == req->num_outstanding_cmds)
3109                         handle = 1;
3110                 if (!req->outstanding_cmds[handle])
3111                         break;
3112         }
3113         if (index == req->num_outstanding_cmds)
3114                 goto queuing_error;
3115
3116         /* Map the sg table so we have an accurate count of sg entries needed */
3117         if (scsi_sg_count(cmd)) {
3118                 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3119                     scsi_sg_count(cmd), cmd->sc_data_direction);
3120                 if (unlikely(!nseg))
3121                         goto queuing_error;
3122         } else
3123                 nseg = 0;
3124
3125         tot_dsds = nseg;
3126         req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3127         if (req->cnt < (req_cnt + 2)) {
3128                 cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3129
3130                 if (req->ring_index < cnt)
3131                         req->cnt = cnt - req->ring_index;
3132                 else
3133                         req->cnt = req->length -
3134                                 (req->ring_index - cnt);
3135                 if (req->cnt < (req_cnt + 2))
3136                         goto queuing_error;
3137         }
3138
3139         /* Build command packet. */
3140         req->current_outstanding_cmd = handle;
3141         req->outstanding_cmds[handle] = sp;
3142         sp->handle = handle;
3143         cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3144         req->cnt -= req_cnt;
3145
3146         cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3147
3148         memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3149
3150         lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3151         lcmd_pkt.handle_hi = 0;
3152         lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3153         lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3154
3155         int_to_scsilun(cmd->device->lun, &llun);
3156         host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3157             sizeof(lcmd_pkt.lun));
3158
3159         /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
3160         if (scsi_populate_tag_msg(cmd, tag)) {
3161                 switch (tag[0]) {
3162                 case HEAD_OF_QUEUE_TAG:
3163                         lcmd_pkt.task = TSK_HEAD_OF_QUEUE;
3164                         break;
3165                 case ORDERED_QUEUE_TAG:
3166                         lcmd_pkt.task = TSK_ORDERED;
3167                         break;
3168                 }
3169         }
3170
3171         /* Load SCSI command packet. */
3172         host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3173         lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3174
3175         /* Build IOCB segments */
3176         qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3177
3178         /* Set total data segment count. */
3179         lcmd_pkt.entry_count = (uint8_t)req_cnt;
3180
3181         /* Specify response queue number where completion should happen */
3182         lcmd_pkt.entry_status = (uint8_t) rsp->id;
3183
3184         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3185             (uint8_t *)cmd->cmnd, cmd->cmd_len);
3186         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3187             (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);
3188
3189         memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3190         wmb();
3191
3192         /* Adjust ring index. */
3193         req->ring_index++;
3194         if (req->ring_index == req->length) {
3195                 req->ring_index = 0;
3196                 req->ring_ptr = req->ring;
3197         } else
3198                 req->ring_ptr++;
3199
3200         sp->flags |= SRB_DMA_VALID;
3201
3202         /* Set chip new ring index. */
3203         WRT_REG_DWORD(req->req_q_in, req->ring_index);
3204         QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3205
3206         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3207         return QLA_SUCCESS;
3208
3209 queuing_error:
3210         if (tot_dsds)
3211                 scsi_dma_unmap(cmd);
3212
3213         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3214
3215         return QLA_FUNCTION_FAILED;
3216 }
3217
3218 void
3219 qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3220 {
3221         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3222         scsi_qla_host_t *vha = sp->fcport->vha;
3223         struct req_que *req = vha->req;
3224         struct tsk_mgmt_entry_fx00 tm_iocb;
3225         struct scsi_lun llun;
3226
3227         memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3228         tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3229         tm_iocb.entry_count = 1;
3230         tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3231         tm_iocb.handle_hi = 0;
3232         tm_iocb.timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3233         tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3234         tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3235         if (tm_iocb.control_flags == TCF_LUN_RESET) {
3236                 int_to_scsilun(fxio->u.tmf.lun, &llun);
3237                 host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3238                     sizeof(struct scsi_lun));
3239         }
3240
3241         memcpy((void __iomem *)ptm_iocb, &tm_iocb,
3242             sizeof(struct tsk_mgmt_entry_fx00));
3243         wmb();
3244 }
3245
3246 void
3247 qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3248 {
3249         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3250         scsi_qla_host_t *vha = sp->fcport->vha;
3251         struct req_que *req = vha->req;
3252         struct abort_iocb_entry_fx00 abt_iocb;
3253
3254         memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3255         abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3256         abt_iocb.entry_count = 1;
3257         abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3258         abt_iocb.abort_handle =
3259             cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3260         abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3261         abt_iocb.req_que_no = cpu_to_le16(req->id);
3262
3263         memcpy((void __iomem *)pabt_iocb, &abt_iocb,
3264             sizeof(struct abort_iocb_entry_fx00));
3265         wmb();
3266 }
3267
3268 void
3269 qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3270 {
3271         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3272         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3273         struct fc_bsg_job *bsg_job;
3274         struct fxdisc_entry_fx00 fx_iocb;
3275         uint8_t entry_cnt = 1;
3276
3277         memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3278         fx_iocb.entry_type = FX00_IOCB_TYPE;
3279         fx_iocb.handle = cpu_to_le32(sp->handle);
3280         fx_iocb.entry_count = entry_cnt;
3281
3282         if (sp->type == SRB_FXIOCB_DCMD) {
3283                 fx_iocb.func_num =
3284                     cpu_to_le16(sp->u.iocb_cmd.u.fxiocb.req_func_type);
3285                 fx_iocb.adapid = cpu_to_le32(fxio->u.fxiocb.adapter_id);
3286                 fx_iocb.adapid_hi = cpu_to_le32(fxio->u.fxiocb.adapter_id_hi);
3287                 fx_iocb.reserved_0 = cpu_to_le32(fxio->u.fxiocb.reserved_0);
3288                 fx_iocb.reserved_1 = cpu_to_le32(fxio->u.fxiocb.reserved_1);
3289                 fx_iocb.dataword_extra =
3290                     cpu_to_le32(fxio->u.fxiocb.req_data_extra);
3291
3292                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3293                         fx_iocb.req_dsdcnt = cpu_to_le16(1);
3294                         fx_iocb.req_xfrcnt =
3295                             cpu_to_le16(fxio->u.fxiocb.req_len);
3296                         fx_iocb.dseg_rq_address[0] =
3297                             cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
3298                         fx_iocb.dseg_rq_address[1] =
3299                             cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
3300                         fx_iocb.dseg_rq_len =
3301                             cpu_to_le32(fxio->u.fxiocb.req_len);
3302                 }
3303
3304                 if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3305                         fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3306                         fx_iocb.rsp_xfrcnt =
3307                             cpu_to_le16(fxio->u.fxiocb.rsp_len);
3308                         fx_iocb.dseg_rsp_address[0] =
3309                             cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
3310                         fx_iocb.dseg_rsp_address[1] =
3311                             cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
3312                         fx_iocb.dseg_rsp_len =
3313                             cpu_to_le32(fxio->u.fxiocb.rsp_len);
3314                 }
3315
3316                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3317                         fx_iocb.dataword =
3318                             cpu_to_le32(fxio->u.fxiocb.req_data);
3319                 }
3320                 fx_iocb.flags = fxio->u.fxiocb.flags;
3321         } else {
3322                 struct scatterlist *sg;
3323                 bsg_job = sp->u.bsg_job;
3324                 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3325                         &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
3326
3327                 fx_iocb.func_num = piocb_rqst->func_type;
3328                 fx_iocb.adapid = piocb_rqst->adapid;
3329                 fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3330                 fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3331                 fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3332                 fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3333                 fx_iocb.dataword = piocb_rqst->dataword;
3334                 fx_iocb.req_xfrcnt = cpu_to_le16(piocb_rqst->req_len);
3335                 fx_iocb.rsp_xfrcnt = cpu_to_le16(piocb_rqst->rsp_len);
3336
3337                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3338                         int avail_dsds, tot_dsds;
3339                         cont_a64_entry_t lcont_pkt;
3340                         cont_a64_entry_t *cont_pkt = NULL;
3341                         uint32_t *cur_dsd;
3342                         int index = 0, cont = 0;
3343
3344                         fx_iocb.req_dsdcnt =
3345                             cpu_to_le16(bsg_job->request_payload.sg_cnt);
3346                         tot_dsds =
3347                             cpu_to_le32(bsg_job->request_payload.sg_cnt);
3348                         cur_dsd = (uint32_t *)&fx_iocb.dseg_rq_address[0];
3349                         avail_dsds = 1;
3350                         for_each_sg(bsg_job->request_payload.sg_list, sg,
3351                             tot_dsds, index) {
3352                                 dma_addr_t sle_dma;
3353
3354                                 /* Allocate additional continuation packets? */
3355                                 if (avail_dsds == 0) {
3356                                         /*
3357                                          * Five DSDs are available in the Cont.
3358                                          * Type 1 IOCB.
3359                                          */
3360                                         memset(&lcont_pkt, 0,
3361                                             REQUEST_ENTRY_SIZE);
3362                                         cont_pkt =
3363                                             qlafx00_prep_cont_type1_iocb(
3364                                                 sp->fcport->vha->req,
3365                                                 &lcont_pkt);
3366                                         cur_dsd = (uint32_t *)
3367                                             lcont_pkt.dseg_0_address;
3368                                         avail_dsds = 5;
3369                                         cont = 1;
3370                                         entry_cnt++;
3371                                 }
3372
3373                                 sle_dma = sg_dma_address(sg);
3374                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3375                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3376                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3377                                 avail_dsds--;
3378
3379                                 if (avail_dsds == 0 && cont == 1) {
3380                                         cont = 0;
3381                                         memcpy_toio(
3382                                             (void __iomem *)cont_pkt,
3383                                             &lcont_pkt, REQUEST_ENTRY_SIZE);
3384                                         ql_dump_buffer(
3385                                             ql_dbg_user + ql_dbg_verbose,
3386                                             sp->fcport->vha, 0x3042,
3387                                             (uint8_t *)&lcont_pkt,
3388                                              REQUEST_ENTRY_SIZE);
3389                                 }
3390                         }
3391                         if (avail_dsds != 0 && cont == 1) {
3392                                 memcpy_toio((void __iomem *)cont_pkt,
3393                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3394                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3395                                     sp->fcport->vha, 0x3043,
3396                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3397                         }
3398                 }
3399
3400                 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3401                         int avail_dsds, tot_dsds;
3402                         cont_a64_entry_t lcont_pkt;
3403                         cont_a64_entry_t *cont_pkt = NULL;
3404                         uint32_t *cur_dsd;
3405                         int index = 0, cont = 0;
3406
3407                         fx_iocb.rsp_dsdcnt =
3408                            cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3409                         tot_dsds = cpu_to_le32(bsg_job->reply_payload.sg_cnt);
3410                         cur_dsd = (uint32_t *)&fx_iocb.dseg_rsp_address[0];
3411                         avail_dsds = 1;
3412
3413                         for_each_sg(bsg_job->reply_payload.sg_list, sg,
3414                             tot_dsds, index) {
3415                                 dma_addr_t sle_dma;
3416
3417                                 /* Allocate additional continuation packets? */
3418                                 if (avail_dsds == 0) {
3419                                         /*
3420                                         * Five DSDs are available in the Cont.
3421                                         * Type 1 IOCB.
3422                                         */
3423                                         memset(&lcont_pkt, 0,
3424                                             REQUEST_ENTRY_SIZE);
3425                                         cont_pkt =
3426                                             qlafx00_prep_cont_type1_iocb(
3427                                                 sp->fcport->vha->req,
3428                                                 &lcont_pkt);
3429                                         cur_dsd = (uint32_t *)
3430                                             lcont_pkt.dseg_0_address;
3431                                         avail_dsds = 5;
3432                                         cont = 1;
3433                                         entry_cnt++;
3434                                 }
3435
3436                                 sle_dma = sg_dma_address(sg);
3437                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3438                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3439                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3440                                 avail_dsds--;
3441
3442                                 if (avail_dsds == 0 && cont == 1) {
3443                                         cont = 0;
3444                                         memcpy_toio((void __iomem *)cont_pkt,
3445                                             &lcont_pkt,
3446                                             REQUEST_ENTRY_SIZE);
3447                                         ql_dump_buffer(
3448                                             ql_dbg_user + ql_dbg_verbose,
3449                                             sp->fcport->vha, 0x3045,
3450                                             (uint8_t *)&lcont_pkt,
3451                                             REQUEST_ENTRY_SIZE);
3452                                 }
3453                         }
3454                         if (avail_dsds != 0 && cont == 1) {
3455                                 memcpy_toio((void __iomem *)cont_pkt,
3456                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3457                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3458                                     sp->fcport->vha, 0x3046,
3459                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3460                         }
3461                 }
3462
3463                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3464                         fx_iocb.dataword = cpu_to_le32(piocb_rqst->dataword);
3465                 fx_iocb.flags = piocb_rqst->flags;
3466                 fx_iocb.entry_count = entry_cnt;
3467         }
3468
3469         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3470             sp->fcport->vha, 0x3047,
3471             (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));
3472
3473         memcpy((void __iomem *)pfxiocb, &fx_iocb,
3474             sizeof(struct fxdisc_entry_fx00));
3475         wmb();
3476 }