drivers/scsi/qla2xxx/qla_mr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include <linux/delay.h>
   9 #include <linux/ktime.h>
  10 #include <linux/pci.h>
  11 #include <linux/ratelimit.h>
  12 #include <linux/vmalloc.h>
  13 #include <linux/bsg-lib.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <linux/utsname.h>
  16
  17
  18 /* QLAFX00 specific Mailbox implementation functions */
  19
  20 /*
  21  * qlafx00_mailbox_command
  22  *      Issue mailbox command and waits for completion.
  23  *
  24  * Input:
  25  *      ha = adapter block pointer.
  26  *      mcp = driver internal mbx struct pointer.
  27  *
  28  * Output:
  29  *      mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
  30  *
  31  * Returns:
  32  *      0 : QLA_SUCCESS = cmd performed success
  33  *      1 : QLA_FUNCTION_FAILED   (error encountered)
  34  *      6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
  35  *
  36  * Context:
  37  *      Kernel context.
  38  */
  39 static int
  40 qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
  41
  42 {
  43         int             rval;
  44         unsigned long    flags = 0;
  45         device_reg_t *reg;
  46         uint8_t         abort_active;
  47         uint8_t         io_lock_on;
  48         uint16_t        command = 0;
  49         uint32_t        *iptr;
  50         uint32_t __iomem *optr;
  51         uint32_t        cnt;
  52         uint32_t        mboxes;
  53         unsigned long   wait_time;
  54         struct qla_hw_data *ha = vha->hw;
  55         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
  56
  57         if (ha->pdev->error_state > pci_channel_io_frozen) {
  58                 ql_log(ql_log_warn, vha, 0x115c,
  59                     "error_state is greater than pci_channel_io_frozen, "
  60                     "exiting.\n");
  61                 return QLA_FUNCTION_TIMEOUT;
  62         }
  63
  64         if (vha->device_flags & DFLG_DEV_FAILED) {
  65                 ql_log(ql_log_warn, vha, 0x115f,
  66                     "Device in failed state, exiting.\n");
  67                 return QLA_FUNCTION_TIMEOUT;
  68         }
  69
  70         reg = ha->iobase;
  71         io_lock_on = base_vha->flags.init_done;
  72
  73         rval = QLA_SUCCESS;
  74         abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
  75
  76         if (ha->flags.pci_channel_io_perm_failure) {
  77                 ql_log(ql_log_warn, vha, 0x1175,
  78                     "Perm failure on EEH timeout MBX, exiting.\n");
  79                 return QLA_FUNCTION_TIMEOUT;
  80         }
  81
  82         if (ha->flags.isp82xx_fw_hung) {
  83                 /* Setting Link-Down error */
  84                 mcp->mb[0] = MBS_LINK_DOWN_ERROR;
  85                 ql_log(ql_log_warn, vha, 0x1176,
  86                     "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
  87                 rval = QLA_FUNCTION_FAILED;
  88                 goto premature_exit;
  89         }
  90
  91         /*
  92          * Wait for active mailbox commands to finish by waiting at most tov
  93          * seconds. This is to serialize actual issuing of mailbox cmds during
  94          * non ISP abort time.
  95          */
  96         if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
  97                 /* Timeout occurred. Return error. */
  98                 ql_log(ql_log_warn, vha, 0x1177,
  99                     "Cmd access timeout, cmd=0x%x, Exiting.\n",
 100                     mcp->mb[0]);
 101                 return QLA_FUNCTION_TIMEOUT;
 102         }
 103
 104         ha->flags.mbox_busy = 1;
 105         /* Save mailbox command for debug */
 106         ha->mcp32 = mcp;
 107
 108         ql_dbg(ql_dbg_mbx, vha, 0x1178,
 109             "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
 110
 111         spin_lock_irqsave(&ha->hardware_lock, flags);
 112
 113         /* Load mailbox registers. */
 114         optr = (uint32_t __iomem *)&reg->ispfx00.mailbox0;
 115
 116         iptr = mcp->mb;
 117         command = mcp->mb[0];
 118         mboxes = mcp->out_mb;
 119
 120         for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 121                 if (mboxes & BIT_0)
 122                         WRT_REG_DWORD(optr, *iptr);
 123
 124                 mboxes >>= 1;
 125                 optr++;
 126                 iptr++;
 127         }
 128
 129         /* Issue set host interrupt command to send cmd out. */
 130         ha->flags.mbox_int = 0;
 131         clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 132
 133         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
 134             (uint8_t *)mcp->mb, 16);
 135         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
 136             ((uint8_t *)mcp->mb + 0x10), 16);
 137         ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
 138             ((uint8_t *)mcp->mb + 0x20), 8);
 139
 140         /* Unlock mbx registers and wait for interrupt */
 141         ql_dbg(ql_dbg_mbx, vha, 0x1179,
 142             "Going to unlock irq & waiting for interrupts. "
 143             "jiffies=%lx.\n", jiffies);
 144
 145         /* Wait for mbx cmd completion until timeout */
 146         if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 147                 set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 148
 149                 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 150                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 151
 152                 wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
 153         } else {
 154                 ql_dbg(ql_dbg_mbx, vha, 0x112c,
 155                     "Cmd=%x Polling Mode.\n", command);
 156
 157                 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 158                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 159
 160                 wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 161                 while (!ha->flags.mbox_int) {
 162                         if (time_after(jiffies, wait_time))
 163                                 break;
 164
 165                         /* Check for pending interrupts. */
 166                         qla2x00_poll(ha->rsp_q_map[0]);
 167
 168                         if (!ha->flags.mbox_int &&
 169                             !(IS_QLA2200(ha) &&
 170                             command == MBC_LOAD_RISC_RAM_EXTENDED))
 171                                 usleep_range(10000, 11000);
 172                 } /* while */
 173                 ql_dbg(ql_dbg_mbx, vha, 0x112d,
 174                     "Waited %d sec.\n",
 175                     (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 176         }
 177
 178         /* Check whether we timed out */
 179         if (ha->flags.mbox_int) {
 180                 uint32_t *iptr2;
 181
 182                 ql_dbg(ql_dbg_mbx, vha, 0x112e,
 183                     "Cmd=%x completed.\n", command);
 184
 185                 /* Got interrupt. Clear the flag. */
 186                 ha->flags.mbox_int = 0;
 187                 clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 188
 189                 if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 190                         rval = QLA_FUNCTION_FAILED;
 191
 192                 /* Load return mailbox registers. */
 193                 iptr2 = mcp->mb;
 194                 iptr = (uint32_t *)&ha->mailbox_out32[0];
 195                 mboxes = mcp->in_mb;
 196                 for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 197                         if (mboxes & BIT_0)
 198                                 *iptr2 = *iptr;
 199
 200                         mboxes >>= 1;
 201                         iptr2++;
 202                         iptr++;
 203                 }
 204         } else {
 205
 206                 rval = QLA_FUNCTION_TIMEOUT;
 207         }
 208
 209         ha->flags.mbox_busy = 0;
 210
 211         /* Clean up */
 212         ha->mcp32 = NULL;
 213
 214         if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 215                 ql_dbg(ql_dbg_mbx, vha, 0x113a,
 216                     "checking for additional resp interrupt.\n");
 217
 218                 /* polling mode for non isp_abort commands. */
 219                 qla2x00_poll(ha->rsp_q_map[0]);
 220         }
 221
 222         if (rval == QLA_FUNCTION_TIMEOUT &&
 223             mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 224                 if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 225                     ha->flags.eeh_busy) {
 226                         /* not in dpc. schedule it for dpc to take over. */
 227                         ql_dbg(ql_dbg_mbx, vha, 0x115d,
 228                             "Timeout, schedule isp_abort_needed.\n");
 229
 230                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 231                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 232                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 233
 234                                 ql_log(ql_log_info, base_vha, 0x115e,
 235                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 236                                     "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 237                                     "abort.\n", command, mcp->mb[0],
 238                                     ha->flags.eeh_busy);
 239                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 240                                 qla2xxx_wake_dpc(vha);
 241                         }
 242                 } else if (!abort_active) {
 243                         /* call abort directly since we are in the DPC thread */
 244                         ql_dbg(ql_dbg_mbx, vha, 0x1160,
 245                             "Timeout, calling abort_isp.\n");
 246
 247                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 248                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 249                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 250
 251                                 ql_log(ql_log_info, base_vha, 0x1161,
 252                                     "Mailbox cmd timeout occurred, cmd=0x%x, "
 253                                     "mb[0]=0x%x. Scheduling ISP abort ",
 254                                     command, mcp->mb[0]);
 255
 256                                 set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 257                                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 258                                 if (ha->isp_ops->abort_isp(vha)) {
 259                                         /* Failed. retry later. */
 260                                         set_bit(ISP_ABORT_NEEDED,
 261                                             &vha->dpc_flags);
 262                                 }
 263                                 clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 264                                 ql_dbg(ql_dbg_mbx, vha, 0x1162,
 265                                     "Finished abort_isp.\n");
 266                         }
 267                 }
 268         }
 269
 270 premature_exit:
 271         /* Allow next mbx cmd to come in. */
 272         complete(&ha->mbx_cmd_comp);
 273
 274         if (rval) {
 275                 ql_log(ql_log_warn, base_vha, 0x1163,
 276                        "**** Failed=%x mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
 277                        rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
 278                        command);
 279         } else {
 280                 ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 281         }
 282
 283         return rval;
 284 }
 285
 286 /*
 287  * qlafx00_driver_shutdown
 288  *      Indicate a driver shutdown to firmware.
 289  *
 290  * Input:
 291  *      ha = adapter block pointer.
 292  *
 293  * Returns:
 294  *      local function return status code.
 295  *
 296  * Context:
 297  *      Kernel context.
 298  */
 299 int
 300 qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
 301 {
 302         int rval;
 303         struct mbx_cmd_32 mc;
 304         struct mbx_cmd_32 *mcp = &mc;
 305
 306         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
 307             "Entered %s.\n", __func__);
 308
 309         mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
 310         mcp->out_mb = MBX_0;
 311         mcp->in_mb = MBX_0;
 312         if (tmo)
 313                 mcp->tov = tmo;
 314         else
 315                 mcp->tov = MBX_TOV_SECONDS;
 316         mcp->flags = 0;
 317         rval = qlafx00_mailbox_command(vha, mcp);
 318
 319         if (rval != QLA_SUCCESS) {
 320                 ql_dbg(ql_dbg_mbx, vha, 0x1167,
 321                     "Failed=%x.\n", rval);
 322         } else {
 323                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
 324                     "Done %s.\n", __func__);
 325         }
 326
 327         return rval;
 328 }
 329
 330 /*
 331  * qlafx00_get_firmware_state
 332  *      Get adapter firmware state.
 333  *
 334  * Input:
 335  *      ha = adapter block pointer.
 336  *      TARGET_QUEUE_LOCK must be released.
 337  *      ADAPTER_STATE_LOCK must be released.
 338  *
 339  * Returns:
 340  *      qla7xxx local function return status code.
 341  *
 342  * Context:
 343  *      Kernel context.
 344  */
 345 static int
 346 qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
 347 {
 348         int rval;
 349         struct mbx_cmd_32 mc;
 350         struct mbx_cmd_32 *mcp = &mc;
 351
 352         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
 353             "Entered %s.\n", __func__);
 354
 355         mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 356         mcp->out_mb = MBX_0;
 357         mcp->in_mb = MBX_1|MBX_0;
 358         mcp->tov = MBX_TOV_SECONDS;
 359         mcp->flags = 0;
 360         rval = qlafx00_mailbox_command(vha, mcp);
 361
 362         /* Return firmware states. */
 363         states[0] = mcp->mb[1];
 364
 365         if (rval != QLA_SUCCESS) {
 366                 ql_dbg(ql_dbg_mbx, vha, 0x116a,
 367                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 368         } else {
 369                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
 370                     "Done %s.\n", __func__);
 371         }
 372         return rval;
 373 }
 374
 375 /*
 376  * qlafx00_init_firmware
 377  *      Initialize adapter firmware.
 378  *
 379  * Input:
 380  *      ha = adapter block pointer.
 381  *      dptr = Initialization control block pointer.
 382  *      size = size of initialization control block.
 383  *      TARGET_QUEUE_LOCK must be released.
 384  *      ADAPTER_STATE_LOCK must be released.
 385  *
 386  * Returns:
 387  *      qlafx00 local function return status code.
 388  *
 389  * Context:
 390  *      Kernel context.
 391  */
 392 int
 393 qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
 394 {
 395         int rval;
 396         struct mbx_cmd_32 mc;
 397         struct mbx_cmd_32 *mcp = &mc;
 398         struct qla_hw_data *ha = vha->hw;
 399
 400         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
 401             "Entered %s.\n", __func__);
 402
 403         mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
 404
 405         mcp->mb[1] = 0;
 406         mcp->mb[2] = MSD(ha->init_cb_dma);
 407         mcp->mb[3] = LSD(ha->init_cb_dma);
 408
 409         mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
 410         mcp->in_mb = MBX_0;
 411         mcp->buf_size = size;
 412         mcp->flags = MBX_DMA_OUT;
 413         mcp->tov = MBX_TOV_SECONDS;
 414         rval = qlafx00_mailbox_command(vha, mcp);
 415
 416         if (rval != QLA_SUCCESS) {
 417                 ql_dbg(ql_dbg_mbx, vha, 0x116d,
 418                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 419         } else {
 420                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
 421                     "Done %s.\n", __func__);
 422         }
 423         return rval;
 424 }
 425
 426 /*
 427  * qlafx00_mbx_reg_test
 428  */
 429 static int
 430 qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
 431 {
 432         int rval;
 433         struct mbx_cmd_32 mc;
 434         struct mbx_cmd_32 *mcp = &mc;
 435
 436         ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
 437             "Entered %s.\n", __func__);
 438
 439
 440         mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
 441         mcp->mb[1] = 0xAAAA;
 442         mcp->mb[2] = 0x5555;
 443         mcp->mb[3] = 0xAA55;
 444         mcp->mb[4] = 0x55AA;
 445         mcp->mb[5] = 0xA5A5;
 446         mcp->mb[6] = 0x5A5A;
 447         mcp->mb[7] = 0x2525;
 448         mcp->mb[8] = 0xBBBB;
 449         mcp->mb[9] = 0x6666;
 450         mcp->mb[10] = 0xBB66;
 451         mcp->mb[11] = 0x66BB;
 452         mcp->mb[12] = 0xB6B6;
 453         mcp->mb[13] = 0x6B6B;
 454         mcp->mb[14] = 0x3636;
 455         mcp->mb[15] = 0xCCCC;
 456
 457
 458         mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 459                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 460         mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 461                         MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 462         mcp->buf_size = 0;
 463         mcp->flags = MBX_DMA_OUT;
 464         mcp->tov = MBX_TOV_SECONDS;
 465         rval = qlafx00_mailbox_command(vha, mcp);
 466         if (rval == QLA_SUCCESS) {
 467                 if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
 468                     mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
 469                         rval = QLA_FUNCTION_FAILED;
 470                 if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
 471                     mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
 472                         rval = QLA_FUNCTION_FAILED;
 473                 if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
 474                     mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
 475                         rval = QLA_FUNCTION_FAILED;
 476                 if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
 477                     mcp->mb[31] != 0xCCCC)
 478                         rval = QLA_FUNCTION_FAILED;
 479         }
 480
 481         if (rval != QLA_SUCCESS) {
 482                 ql_dbg(ql_dbg_mbx, vha, 0x1170,
 483                     "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 484         } else {
 485                 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
 486                     "Done %s.\n", __func__);
 487         }
 488         return rval;
 489 }
 490
 491 /**
 492  * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 493  * @vha: HA context
 494  *
 495  * Returns 0 on success.
 496  */
 497 int
 498 qlafx00_pci_config(scsi_qla_host_t *vha)
 499 {
 500         uint16_t w;
 501         struct qla_hw_data *ha = vha->hw;
 502
 503         pci_set_master(ha->pdev);
 504         pci_try_set_mwi(ha->pdev);
 505
 506         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 507         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 508         w &= ~PCI_COMMAND_INTX_DISABLE;
 509         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 510
 511         /* PCIe -- adjust Maximum Read Request Size (2048). */
 512         if (pci_is_pcie(ha->pdev))
 513                 pcie_set_readrq(ha->pdev, 2048);
 514
 515         ha->chip_revision = ha->pdev->revision;
 516
 517         return QLA_SUCCESS;
 518 }
 519
 520 /**
 521  * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 522  * @vha: HA context
 523  *
 524  */
 525 static inline void
 526 qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
 527 {
 528         unsigned long flags = 0;
 529         struct qla_hw_data *ha = vha->hw;
 530         int i, core;
 531         uint32_t cnt;
 532         uint32_t reg_val;
 533
 534         spin_lock_irqsave(&ha->hardware_lock, flags);
 535
 536         QLAFX00_SET_HBA_SOC_REG(ha, 0x80004, 0);
 537         QLAFX00_SET_HBA_SOC_REG(ha, 0x82004, 0);
 538
 539         /* stop the XOR DMA engines */
 540         QLAFX00_SET_HBA_SOC_REG(ha, 0x60920, 0x02);
 541         QLAFX00_SET_HBA_SOC_REG(ha, 0x60924, 0x02);
 542         QLAFX00_SET_HBA_SOC_REG(ha, 0xf0920, 0x02);
 543         QLAFX00_SET_HBA_SOC_REG(ha, 0xf0924, 0x02);
 544
 545         /* stop the IDMA engines */
 546         reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60840);
 547         reg_val &= ~(1<<12);
 548         QLAFX00_SET_HBA_SOC_REG(ha, 0x60840, reg_val);
 549
 550         reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60844);
 551         reg_val &= ~(1<<12);
 552         QLAFX00_SET_HBA_SOC_REG(ha, 0x60844, reg_val);
 553
 554         reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60848);
 555         reg_val &= ~(1<<12);
 556         QLAFX00_SET_HBA_SOC_REG(ha, 0x60848, reg_val);
 557
 558         reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x6084C);
 559         reg_val &= ~(1<<12);
 560         QLAFX00_SET_HBA_SOC_REG(ha, 0x6084C, reg_val);
 561
 562         for (i = 0; i < 100000; i++) {
 563                 if ((QLAFX00_GET_HBA_SOC_REG(ha, 0xd0000) & 0x10000000) == 0 &&
 564                     (QLAFX00_GET_HBA_SOC_REG(ha, 0x10600) & 0x1) == 0)
 565                         break;
 566                 udelay(100);
 567         }
 568
 569         /* Set all 4 cores in reset */
 570         for (i = 0; i < 4; i++) {
 571                 QLAFX00_SET_HBA_SOC_REG(ha,
 572                     (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
 573                 QLAFX00_SET_HBA_SOC_REG(ha,
 574                     (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
 575         }
 576
 577         /* Reset all units in Fabric */
 578         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x011f0101));
 579
 580         /* */
 581         QLAFX00_SET_HBA_SOC_REG(ha, 0x10610, 1);
 582         QLAFX00_SET_HBA_SOC_REG(ha, 0x10600, 0);
 583
 584         /* Set all 4 core Memory Power Down Registers */
 585         for (i = 0; i < 5; i++) {
 586                 QLAFX00_SET_HBA_SOC_REG(ha,
 587                     (SOC_PWR_MANAGEMENT_PWR_DOWN_REG + 4*i), (0x0));
 588         }
 589
 590         /* Reset all interrupt control registers */
 591         for (i = 0; i < 115; i++) {
 592                 QLAFX00_SET_HBA_SOC_REG(ha,
 593                     (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
 594         }
 595
 596         /* Reset Timers control registers. per core */
 597         for (core = 0; core < 4; core++)
 598                 for (i = 0; i < 8; i++)
 599                         QLAFX00_SET_HBA_SOC_REG(ha,
 600                             (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
 601
 602         /* Reset per core IRQ ack register */
 603         for (core = 0; core < 4; core++)
 604                 QLAFX00_SET_HBA_SOC_REG(ha,
 605                     (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
 606
 607         /* Set Fabric control and config to defaults */
 608         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
 609         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
 610
 611         /* Kick in Fabric units */
 612         QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
 613
 614         /* Kick in Core0 to start boot process */
 615         QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
 616
 617         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 618
 619         /* Wait 10secs for soft-reset to complete. */
 620         for (cnt = 10; cnt; cnt--) {
 621                 msleep(1000);
 622                 barrier();
 623         }
 624 }
 625
 626 /**
 627  * qlafx00_soft_reset() - Soft Reset ISPFx00.
 628  * @vha: HA context
 629  *
 630  * Returns 0 on success.
 631  */
 632 int
 633 qlafx00_soft_reset(scsi_qla_host_t *vha)
 634 {
 635         struct qla_hw_data *ha = vha->hw;
 636         int rval = QLA_FUNCTION_FAILED;
 637
 638         if (unlikely(pci_channel_offline(ha->pdev) &&
 639             ha->flags.pci_channel_io_perm_failure))
 640                 return rval;
 641
 642         ha->isp_ops->disable_intrs(ha);
 643         qlafx00_soc_cpu_reset(vha);
 644
 645         return QLA_SUCCESS;
 646 }
 647
 648 /**
 649  * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 650  * @vha: HA context
 651  *
 652  * Returns 0 on success.
 653  */
 654 int
 655 qlafx00_chip_diag(scsi_qla_host_t *vha)
 656 {
 657         int rval = 0;
 658         struct qla_hw_data *ha = vha->hw;
 659         struct req_que *req = ha->req_q_map[0];
 660
 661         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 662
 663         rval = qlafx00_mbx_reg_test(vha);
 664         if (rval) {
 665                 ql_log(ql_log_warn, vha, 0x1165,
 666                     "Failed mailbox send register test\n");
 667         } else {
 668                 /* Flag a successful rval */
 669                 rval = QLA_SUCCESS;
 670         }
 671         return rval;
 672 }
 673
 674 void
 675 qlafx00_config_rings(struct scsi_qla_host *vha)
 676 {
 677         struct qla_hw_data *ha = vha->hw;
 678         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 679
 680         WRT_REG_DWORD(&reg->req_q_in, 0);
 681         WRT_REG_DWORD(&reg->req_q_out, 0);
 682
 683         WRT_REG_DWORD(&reg->rsp_q_in, 0);
 684         WRT_REG_DWORD(&reg->rsp_q_out, 0);
 685
 686         /* PCI posting */
 687         RD_REG_DWORD(&reg->rsp_q_out);
 688 }
 689
 690 char *
 691 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 692 {
 693         struct qla_hw_data *ha = vha->hw;
 694
 695         if (pci_is_pcie(ha->pdev)) {
 696                 strcpy(str, "PCIe iSA");
 697                 return str;
 698         }
 699         return str;
 700 }
 701
 702 char *
 703 qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
 704 {
 705         struct qla_hw_data *ha = vha->hw;
 706
 707         snprintf(str, size, "%s", ha->mr.fw_version);
 708         return str;
 709 }
 710
 711 void
 712 qlafx00_enable_intrs(struct qla_hw_data *ha)
 713 {
 714         unsigned long flags = 0;
 715
 716         spin_lock_irqsave(&ha->hardware_lock, flags);
 717         ha->interrupts_on = 1;
 718         QLAFX00_ENABLE_ICNTRL_REG(ha);
 719         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 720 }
 721
 722 void
 723 qlafx00_disable_intrs(struct qla_hw_data *ha)
 724 {
 725         unsigned long flags = 0;
 726
 727         spin_lock_irqsave(&ha->hardware_lock, flags);
 728         ha->interrupts_on = 0;
 729         QLAFX00_DISABLE_ICNTRL_REG(ha);
 730         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 731 }
 732
 733 int
 734 qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
 735 {
 736         return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 737 }
 738
 739 int
 740 qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 741 {
 742         return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 743 }
 744
 745 int
 746 qlafx00_loop_reset(scsi_qla_host_t *vha)
 747 {
 748         int ret;
 749         struct fc_port *fcport;
 750         struct qla_hw_data *ha = vha->hw;
 751
 752         if (ql2xtargetreset) {
 753                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
 754                         if (fcport->port_type != FCT_TARGET)
 755                                 continue;
 756
 757                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
 758                         if (ret != QLA_SUCCESS) {
 759                                 ql_dbg(ql_dbg_taskm, vha, 0x803d,
 760                                     "Bus Reset failed: Reset=%d "
 761                                     "d_id=%x.\n", ret, fcport->d_id.b24);
 762                         }
 763                 }
 764         }
 765         return QLA_SUCCESS;
 766 }
 767
 768 int
 769 qlafx00_iospace_config(struct qla_hw_data *ha)
 770 {
 771         if (pci_request_selected_regions(ha->pdev, ha->bars,
 772             QLA2XXX_DRIVER_NAME)) {
 773                 ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 774                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 775                     pci_name(ha->pdev));
 776                 goto iospace_error_exit;
 777         }
 778
 779         /* Use MMIO operations for all accesses. */
 780         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 781                 ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 782                     "Invalid pci I/O region size (%s).\n",
 783                     pci_name(ha->pdev));
 784                 goto iospace_error_exit;
 785         }
 786         if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 787                 ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 788                     "Invalid PCI mem BAR0 region size (%s), aborting\n",
 789                         pci_name(ha->pdev));
 790                 goto iospace_error_exit;
 791         }
 792
 793         ha->cregbase =
 794             ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 795         if (!ha->cregbase) {
 796                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 797                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 798                 goto iospace_error_exit;
 799         }
 800
 801         if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 802                 ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 803                     "region #2 not an MMIO resource (%s), aborting\n",
 804                     pci_name(ha->pdev));
 805                 goto iospace_error_exit;
 806         }
 807         if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 808                 ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 809                     "Invalid PCI mem BAR2 region size (%s), aborting\n",
 810                         pci_name(ha->pdev));
 811                 goto iospace_error_exit;
 812         }
 813
 814         ha->iobase =
 815             ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 816         if (!ha->iobase) {
 817                 ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 818                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 819                 goto iospace_error_exit;
 820         }
 821
 822         /* Determine queue resources */
 823         ha->max_req_queues = ha->max_rsp_queues = 1;
 824
 825         ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 826             "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 827             ha->bars, ha->cregbase, ha->iobase);
 828
 829         return 0;
 830
 831 iospace_error_exit:
 832         return -ENOMEM;
 833 }
 834
 835 static void
 836 qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 837 {
 838         struct qla_hw_data *ha = vha->hw;
 839         struct req_que *req = ha->req_q_map[0];
 840         struct rsp_que *rsp = ha->rsp_q_map[0];
 841
 842         req->length_fx00 = req->length;
 843         req->ring_fx00 = req->ring;
 844         req->dma_fx00 = req->dma;
 845
 846         rsp->length_fx00 = rsp->length;
 847         rsp->ring_fx00 = rsp->ring;
 848         rsp->dma_fx00 = rsp->dma;
 849
 850         ql_dbg(ql_dbg_init, vha, 0x012d,
 851             "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 852             "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 853             req->length_fx00, (u64)req->dma_fx00);
 854
 855         ql_dbg(ql_dbg_init, vha, 0x012e,
 856             "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 857             "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 858             rsp->length_fx00, (u64)rsp->dma_fx00);
 859 }
 860
 861 static int
 862 qlafx00_config_queues(struct scsi_qla_host *vha)
 863 {
 864         struct qla_hw_data *ha = vha->hw;
 865         struct req_que *req = ha->req_q_map[0];
 866         struct rsp_que *rsp = ha->rsp_q_map[0];
 867         dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 868
 869         req->length = ha->req_que_len;
 870         req->ring = (void __force *)ha->iobase + ha->req_que_off;
 871         req->dma = bar2_hdl + ha->req_que_off;
 872         if ((!req->ring) || (req->length == 0)) {
 873                 ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 874                     "Unable to allocate memory for req_ring\n");
 875                 return QLA_FUNCTION_FAILED;
 876         }
 877
 878         ql_dbg(ql_dbg_init, vha, 0x0130,
 879             "req: %p req_ring pointer %p req len 0x%x "
 880             "req off 0x%x\n, req->dma: 0x%llx",
 881             req, req->ring, req->length,
 882             ha->req_que_off, (u64)req->dma);
 883
 884         rsp->length = ha->rsp_que_len;
 885         rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
 886         rsp->dma = bar2_hdl + ha->rsp_que_off;
 887         if ((!rsp->ring) || (rsp->length == 0)) {
 888                 ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 889                     "Unable to allocate memory for rsp_ring\n");
 890                 return QLA_FUNCTION_FAILED;
 891         }
 892
 893         ql_dbg(ql_dbg_init, vha, 0x0132,
 894             "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 895             "rsp off 0x%x, rsp->dma: 0x%llx\n",
 896             rsp, rsp->ring, rsp->length,
 897             ha->rsp_que_off, (u64)rsp->dma);
 898
 899         return QLA_SUCCESS;
 900 }
 901
 902 static int
 903 qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 904 {
 905         int rval = 0;
 906         unsigned long wtime;
 907         uint16_t wait_time;     /* Wait time */
 908         struct qla_hw_data *ha = vha->hw;
 909         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 910         uint32_t aenmbx, aenmbx7 = 0;
 911         uint32_t pseudo_aen;
 912         uint32_t state[5];
 913         bool done = false;
 914
 915         /* 30 seconds wait - Adjust if required */
 916         wait_time = 30;
 917
 918         pseudo_aen = RD_REG_DWORD(&reg->pseudoaen);
 919         if (pseudo_aen == 1) {
 920                 aenmbx7 = RD_REG_DWORD(&reg->initval7);
 921                 ha->mbx_intr_code = MSW(aenmbx7);
 922                 ha->rqstq_intr_code = LSW(aenmbx7);
 923                 rval = qlafx00_driver_shutdown(vha, 10);
 924                 if (rval != QLA_SUCCESS)
 925                         qlafx00_soft_reset(vha);
 926         }
 927
 928         /* wait time before firmware ready */
 929         wtime = jiffies + (wait_time * HZ);
 930         do {
 931                 aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 932                 barrier();
 933                 ql_dbg(ql_dbg_mbx, vha, 0x0133,
 934                     "aenmbx: 0x%x\n", aenmbx);
 935
 936                 switch (aenmbx) {
 937                 case MBA_FW_NOT_STARTED:
 938                 case MBA_FW_STARTING:
 939                         break;
 940
 941                 case MBA_SYSTEM_ERR:
 942                 case MBA_REQ_TRANSFER_ERR:
 943                 case MBA_RSP_TRANSFER_ERR:
 944                 case MBA_FW_INIT_FAILURE:
 945                         qlafx00_soft_reset(vha);
 946                         break;
 947
 948                 case MBA_FW_RESTART_CMPLT:
 949                         /* Set the mbx and rqstq intr code */
 950                         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 951                         ha->mbx_intr_code = MSW(aenmbx7);
 952                         ha->rqstq_intr_code = LSW(aenmbx7);
 953                         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 954                         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 955                         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 956                         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 957                         WRT_REG_DWORD(&reg->aenmailbox0, 0);
 958                         RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 959                         ql_dbg(ql_dbg_init, vha, 0x0134,
 960                             "f/w returned mbx_intr_code: 0x%x, "
 961                             "rqstq_intr_code: 0x%x\n",
 962                             ha->mbx_intr_code, ha->rqstq_intr_code);
 963                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 964                         rval = QLA_SUCCESS;
 965                         done = true;
 966                         break;
 967
 968                 default:
 969                         if ((aenmbx & 0xFF00) == MBA_FW_INIT_INPROGRESS)
 970                                 break;
 971
 972                         /* If fw is apparently not ready. In order to continue,
 973                          * we might need to issue Mbox cmd, but the problem is
 974                          * that the DoorBell vector values that come with the
 975                          * 8060 AEN are most likely gone by now (and thus no
 976                          * bell would be rung on the fw side when mbox cmd is
 977                          * issued). We have to therefore grab the 8060 AEN
 978                          * shadow regs (filled in by FW when the last 8060
 979                          * AEN was being posted).
 980                          * Do the following to determine what is needed in
 981                          * order to get the FW ready:
 982                          * 1. reload the 8060 AEN values from the shadow regs
 983                          * 2. clear int status to get rid of possible pending
 984                          *    interrupts
 985                          * 3. issue Get FW State Mbox cmd to determine fw state
 986                          * Set the mbx and rqstq intr code from Shadow Regs
 987                          */
 988                         aenmbx7 = RD_REG_DWORD(&reg->initval7);
 989                         ha->mbx_intr_code = MSW(aenmbx7);
 990                         ha->rqstq_intr_code = LSW(aenmbx7);
 991                         ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 992                         ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 993                         ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 994                         ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 995                         ql_dbg(ql_dbg_init, vha, 0x0135,
 996                             "f/w returned mbx_intr_code: 0x%x, "
 997                             "rqstq_intr_code: 0x%x\n",
 998                             ha->mbx_intr_code, ha->rqstq_intr_code);
 999                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1000
1001                         /* Get the FW state */
1002                         rval = qlafx00_get_firmware_state(vha, state);
1003                         if (rval != QLA_SUCCESS) {
1004                                 /* Retry if timer has not expired */
1005                                 break;
1006                         }
1007
1008                         if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1009                                 /* Firmware is waiting to be
1010                                  * initialized by driver
1011                                  */
1012                                 rval = QLA_SUCCESS;
1013                                 done = true;
1014                                 break;
1015                         }
1016
1017                         /* Issue driver shutdown and wait until f/w recovers.
1018                          * Driver should continue to poll until 8060 AEN is
1019                          * received indicating firmware recovery.
1020                          */
1021                         ql_dbg(ql_dbg_init, vha, 0x0136,
1022                             "Sending Driver shutdown fw_state 0x%x\n",
1023                             state[0]);
1024
1025                         rval = qlafx00_driver_shutdown(vha, 10);
1026                         if (rval != QLA_SUCCESS) {
1027                                 rval = QLA_FUNCTION_FAILED;
1028                                 break;
1029                         }
1030                         msleep(500);
1031
1032                         wtime = jiffies + (wait_time * HZ);
1033                         break;
1034                 }
1035
1036                 if (!done) {
1037                         if (time_after_eq(jiffies, wtime)) {
1038                                 ql_dbg(ql_dbg_init, vha, 0x0137,
1039                                     "Init f/w failed: aen[7]: 0x%x\n",
1040                                     RD_REG_DWORD(&reg->aenmailbox7));
1041                                 rval = QLA_FUNCTION_FAILED;
1042                                 done = true;
1043                                 break;
1044                         }
1045                         /* Delay for a while */
1046                         msleep(500);
1047                 }
1048         } while (!done);
1049
1050         if (rval)
1051                 ql_dbg(ql_dbg_init, vha, 0x0138,
1052                     "%s **** FAILED ****.\n", __func__);
1053         else
1054                 ql_dbg(ql_dbg_init, vha, 0x0139,
1055                     "%s **** SUCCESS ****.\n", __func__);
1056
1057         return rval;
1058 }
1059
1060 /*
1061  * qlafx00_fw_ready() - Waits for firmware ready.
1062  * @ha: HA context
1063  *
1064  * Returns 0 on success.
1065  */
1066 int
1067 qlafx00_fw_ready(scsi_qla_host_t *vha)
1068 {
1069         int             rval;
1070         unsigned long   wtime;
1071         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1072         uint32_t        state[5];
1073
1074         rval = QLA_SUCCESS;
1075
1076         wait_time = 10;
1077
1078         /* wait time before firmware ready */
1079         wtime = jiffies + (wait_time * HZ);
1080
1081         /* Wait for ISP to finish init */
1082         if (!vha->flags.init_done)
1083                 ql_dbg(ql_dbg_init, vha, 0x013a,
1084                     "Waiting for init to complete...\n");
1085
1086         do {
1087                 rval = qlafx00_get_firmware_state(vha, state);
1088
1089                 if (rval == QLA_SUCCESS) {
1090                         if (state[0] == FSTATE_FX00_INITIALIZED) {
1091                                 ql_dbg(ql_dbg_init, vha, 0x013b,
1092                                     "fw_state=%x\n", state[0]);
1093                                 rval = QLA_SUCCESS;
1094                                         break;
1095                         }
1096                 }
1097                 rval = QLA_FUNCTION_FAILED;
1098
1099                 if (time_after_eq(jiffies, wtime))
1100                         break;
1101
1102                 /* Delay for a while */
1103                 msleep(500);
1104
1105                 ql_dbg(ql_dbg_init, vha, 0x013c,
1106                     "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1107         } while (1);
1108
1109
1110         if (rval)
1111                 ql_dbg(ql_dbg_init, vha, 0x013d,
1112                     "Firmware ready **** FAILED ****.\n");
1113         else
1114                 ql_dbg(ql_dbg_init, vha, 0x013e,
1115                     "Firmware ready **** SUCCESS ****.\n");
1116
1117         return rval;
1118 }
1119
1120 static int
1121 qlafx00_find_all_targets(scsi_qla_host_t *vha,
1122         struct list_head *new_fcports)
1123 {
1124         int             rval;
1125         uint16_t        tgt_id;
1126         fc_port_t       *fcport, *new_fcport;
1127         int             found;
1128         struct qla_hw_data *ha = vha->hw;
1129
1130         rval = QLA_SUCCESS;
1131
1132         if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1133                 return QLA_FUNCTION_FAILED;
1134
1135         if ((atomic_read(&vha->loop_down_timer) ||
1136              STATE_TRANSITION(vha))) {
1137                 atomic_set(&vha->loop_down_timer, 0);
1138                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1139                 return QLA_FUNCTION_FAILED;
1140         }
1141
1142         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1143             "Listing Target bit map...\n");
1144         ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha, 0x2089,
1145             ha->gid_list, 32);
1146
1147         /* Allocate temporary rmtport for any new rmtports discovered. */
1148         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1149         if (new_fcport == NULL)
1150                 return QLA_MEMORY_ALLOC_FAILED;
1151
1152         for_each_set_bit(tgt_id, (void *)ha->gid_list,
1153             QLAFX00_TGT_NODE_LIST_SIZE) {
1154
1155                 /* Send get target node info */
1156                 new_fcport->tgt_id = tgt_id;
1157                 rval = qlafx00_fx_disc(vha, new_fcport,
1158                     FXDISC_GET_TGT_NODE_INFO);
1159                 if (rval != QLA_SUCCESS) {
1160                         ql_log(ql_log_warn, vha, 0x208a,
1161                             "Target info scan failed -- assuming zero-entry "
1162                             "result...\n");
1163                         continue;
1164                 }
1165
1166                 /* Locate matching device in database. */
1167                 found = 0;
1168                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1169                         if (memcmp(new_fcport->port_name,
1170                             fcport->port_name, WWN_SIZE))
1171                                 continue;
1172
1173                         found++;
1174
1175                         /*
1176                          * If tgt_id is same and state FCS_ONLINE, nothing
1177                          * changed.
1178                          */
1179                         if (fcport->tgt_id == new_fcport->tgt_id &&
1180                             atomic_read(&fcport->state) == FCS_ONLINE)
1181                                 break;
1182
1183                         /*
1184                          * Tgt ID changed or device was marked to be updated.
1185                          */
1186                         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1187                             "TGT-ID Change(%s): Present tgt id: "
1188                             "0x%x state: 0x%x "
1189                             "wwnn = %llx wwpn = %llx.\n",
1190                             __func__, fcport->tgt_id,
1191                             atomic_read(&fcport->state),
1192                             (unsigned long long)wwn_to_u64(fcport->node_name),
1193                             (unsigned long long)wwn_to_u64(fcport->port_name));
1194
1195                         ql_log(ql_log_info, vha, 0x208c,
1196                             "TGT-ID Announce(%s): Discovered tgt "
1197                             "id 0x%x wwnn = %llx "
1198                             "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1199                             (unsigned long long)
1200                             wwn_to_u64(new_fcport->node_name),
1201                             (unsigned long long)
1202                             wwn_to_u64(new_fcport->port_name));
1203
1204                         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1205                                 fcport->old_tgt_id = fcport->tgt_id;
1206                                 fcport->tgt_id = new_fcport->tgt_id;
1207                                 ql_log(ql_log_info, vha, 0x208d,
1208                                    "TGT-ID: New fcport Added: %p\n", fcport);
1209                                 qla2x00_update_fcport(vha, fcport);
1210                         } else {
1211                                 ql_log(ql_log_info, vha, 0x208e,
1212                                     " Existing TGT-ID %x did not get "
1213                                     " offline event from firmware.\n",
1214                                     fcport->old_tgt_id);
1215                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1216                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1217                                 kfree(new_fcport);
1218                                 return rval;
1219                         }
1220                         break;
1221                 }
1222
1223                 if (found)
1224                         continue;
1225
1226                 /* If device was not in our fcports list, then add it. */
1227                 list_add_tail(&new_fcport->list, new_fcports);
1228
1229                 /* Allocate a new replacement fcport. */
1230                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1231                 if (new_fcport == NULL)
1232                         return QLA_MEMORY_ALLOC_FAILED;
1233         }
1234
1235         kfree(new_fcport);
1236         return rval;
1237 }
1238
1239 /*
1240  * qlafx00_configure_all_targets
1241  *      Setup target devices with node ID's.
1242  *
1243  * Input:
1244  *      ha = adapter block pointer.
1245  *
1246  * Returns:
1247  *      0 = success.
1248  *      BIT_0 = error
1249  */
1250 static int
1251 qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1252 {
1253         int rval;
1254         fc_port_t *fcport, *rmptemp;
1255         LIST_HEAD(new_fcports);
1256
1257         rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1258             FXDISC_GET_TGT_NODE_LIST);
1259         if (rval != QLA_SUCCESS) {
1260                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1261                 return rval;
1262         }
1263
1264         rval = qlafx00_find_all_targets(vha, &new_fcports);
1265         if (rval != QLA_SUCCESS) {
1266                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1267                 return rval;
1268         }
1269
1270         /*
1271          * Delete all previous devices marked lost.
1272          */
1273         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1274                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1275                         break;
1276
1277                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1278                         if (fcport->port_type != FCT_INITIATOR)
1279                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1280                 }
1281         }
1282
1283         /*
1284          * Add the new devices to our devices list.
1285          */
1286         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1287                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1288                         break;
1289
1290                 qla2x00_update_fcport(vha, fcport);
1291                 list_move_tail(&fcport->list, &vha->vp_fcports);
1292                 ql_log(ql_log_info, vha, 0x208f,
1293                     "Attach new target id 0x%x wwnn = %llx "
1294                     "wwpn = %llx.\n",
1295                     fcport->tgt_id,
1296                     (unsigned long long)wwn_to_u64(fcport->node_name),
1297                     (unsigned long long)wwn_to_u64(fcport->port_name));
1298         }
1299
1300         /* Free all new device structures not processed. */
1301         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1302                 list_del(&fcport->list);
1303                 kfree(fcport);
1304         }
1305
1306         return rval;
1307 }
1308
1309 /*
1310  * qlafx00_configure_devices
1311  *      Updates Fibre Channel Device Database with what is actually on loop.
1312  *
1313  * Input:
1314  *      ha                = adapter block pointer.
1315  *
1316  * Returns:
1317  *      0 = success.
1318  *      1 = error.
1319  *      2 = database was full and device was not configured.
1320  */
1321 int
1322 qlafx00_configure_devices(scsi_qla_host_t *vha)
1323 {
1324         int  rval;
1325         unsigned long flags;
1326
1327         rval = QLA_SUCCESS;
1328
1329         flags = vha->dpc_flags;
1330
1331         ql_dbg(ql_dbg_disc, vha, 0x2090,
1332             "Configure devices -- dpc flags =0x%lx\n", flags);
1333
1334         rval = qlafx00_configure_all_targets(vha);
1335
1336         if (rval == QLA_SUCCESS) {
1337                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1338                         rval = QLA_FUNCTION_FAILED;
1339                 } else {
1340                         atomic_set(&vha->loop_state, LOOP_READY);
1341                         ql_log(ql_log_info, vha, 0x2091,
1342                             "Device Ready\n");
1343                 }
1344         }
1345
1346         if (rval) {
1347                 ql_dbg(ql_dbg_disc, vha, 0x2092,
1348                     "%s *** FAILED ***.\n", __func__);
1349         } else {
1350                 ql_dbg(ql_dbg_disc, vha, 0x2093,
1351                     "%s: exiting normally.\n", __func__);
1352         }
1353         return rval;
1354 }
1355
1356 static void
1357 qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
1358 {
1359         struct qla_hw_data *ha = vha->hw;
1360         fc_port_t *fcport;
1361
1362         vha->flags.online = 0;
1363         ha->mr.fw_hbt_en = 0;
1364
1365         if (!critemp) {
1366                 ha->flags.chip_reset_done = 0;
1367                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1368                 vha->qla_stats.total_isp_aborts++;
1369                 ql_log(ql_log_info, vha, 0x013f,
1370                     "Performing ISP error recovery - ha = %p.\n", ha);
1371                 ha->isp_ops->reset_chip(vha);
1372         }
1373
1374         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1375                 atomic_set(&vha->loop_state, LOOP_DOWN);
1376                 atomic_set(&vha->loop_down_timer,
1377                     QLAFX00_LOOP_DOWN_TIME);
1378         } else {
1379                 if (!atomic_read(&vha->loop_down_timer))
1380                         atomic_set(&vha->loop_down_timer,
1381                             QLAFX00_LOOP_DOWN_TIME);
1382         }
1383
1384         /* Clear all async request states across all VPs. */
1385         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1386                 fcport->flags = 0;
1387                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1388                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1389         }
1390
1391         if (!ha->flags.eeh_busy) {
1392                 if (critemp) {
1393                         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
1394                 } else {
1395                         /* Requeue all commands in outstanding command list. */
1396                         qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1397                 }
1398         }
1399
1400         qla2x00_free_irqs(vha);
1401         if (critemp)
1402                 set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
1403         else
1404                 set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1405
1406         /* Clear the Interrupts */
1407         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1408
1409         ql_log(ql_log_info, vha, 0x0140,
1410             "%s Done done - ha=%p.\n", __func__, ha);
1411 }
1412
1413 /**
1414  * qlafx00_init_response_q_entries() - Initializes response queue entries.
1415  * @rsp: response queue
1416  *
1417  * Beginning of request ring has initialization control block already built
1418  * by nvram config routine.
1419  *
1420  * Returns 0 on success.
1421  */
1422 void
1423 qlafx00_init_response_q_entries(struct rsp_que *rsp)
1424 {
1425         uint16_t cnt;
1426         response_t *pkt;
1427
1428         rsp->ring_ptr = rsp->ring;
1429         rsp->ring_index    = 0;
1430         rsp->status_srb = NULL;
1431         pkt = rsp->ring_ptr;
1432         for (cnt = 0; cnt < rsp->length; cnt++) {
1433                 pkt->signature = RESPONSE_PROCESSED;
1434                 WRT_REG_DWORD((void __force __iomem *)&pkt->signature,
1435                     RESPONSE_PROCESSED);
1436                 pkt++;
1437         }
1438 }
1439
1440 int
1441 qlafx00_rescan_isp(scsi_qla_host_t *vha)
1442 {
1443         uint32_t status = QLA_FUNCTION_FAILED;
1444         struct qla_hw_data *ha = vha->hw;
1445         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1446         uint32_t aenmbx7;
1447
1448         qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1449
1450         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1451         ha->mbx_intr_code = MSW(aenmbx7);
1452         ha->rqstq_intr_code = LSW(aenmbx7);
1453         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1454         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1455         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1456         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1457
1458         ql_dbg(ql_dbg_disc, vha, 0x2094,
1459             "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1460             " Req que offset 0x%x Rsp que offset 0x%x\n",
1461             ha->mbx_intr_code, ha->rqstq_intr_code,
1462             ha->req_que_off, ha->rsp_que_len);
1463
1464         /* Clear the Interrupts */
1465         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1466
1467         status = qla2x00_init_rings(vha);
1468         if (!status) {
1469                 vha->flags.online = 1;
1470
1471                 /* if no cable then assume it's good */
1472                 if ((vha->device_flags & DFLG_NO_CABLE))
1473                         status = 0;
1474                 /* Register system information */
1475                 if (qlafx00_fx_disc(vha,
1476                     &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1477                         ql_dbg(ql_dbg_disc, vha, 0x2095,
1478                             "failed to register host info\n");
1479         }
1480         scsi_unblock_requests(vha->host);
1481         return status;
1482 }
1483
1484 void
1485 qlafx00_timer_routine(scsi_qla_host_t *vha)
1486 {
1487         struct qla_hw_data *ha = vha->hw;
1488         uint32_t fw_heart_beat;
1489         uint32_t aenmbx0;
1490         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1491         uint32_t tempc;
1492
1493         /* Check firmware health */
1494         if (ha->mr.fw_hbt_cnt)
1495                 ha->mr.fw_hbt_cnt--;
1496         else {
1497                 if ((!ha->flags.mr_reset_hdlr_active) &&
1498                     (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1499                     (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1500                     (ha->mr.fw_hbt_en)) {
1501                         fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1502                         if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1503                                 ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1504                                 ha->mr.fw_hbt_miss_cnt = 0;
1505                         } else {
1506                                 ha->mr.fw_hbt_miss_cnt++;
1507                                 if (ha->mr.fw_hbt_miss_cnt ==
1508                                     QLAFX00_HEARTBEAT_MISS_CNT) {
1509                                         set_bit(ISP_ABORT_NEEDED,
1510                                             &vha->dpc_flags);
1511                                         qla2xxx_wake_dpc(vha);
1512                                         ha->mr.fw_hbt_miss_cnt = 0;
1513                                 }
1514                         }
1515                 }
1516                 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1517         }
1518
1519         if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1520                 /* Reset recovery to be performed in timer routine */
1521                 aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1522                 if (ha->mr.fw_reset_timer_exp) {
1523                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1524                         qla2xxx_wake_dpc(vha);
1525                         ha->mr.fw_reset_timer_exp = 0;
1526                 } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1527                         /* Wake up DPC to rescan the targets */
1528                         set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1529                         clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1530                         qla2xxx_wake_dpc(vha);
1531                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1532                 } else if ((aenmbx0 == MBA_FW_STARTING) &&
1533                     (!ha->mr.fw_hbt_en)) {
1534                         ha->mr.fw_hbt_en = 1;
1535                 } else if (!ha->mr.fw_reset_timer_tick) {
1536                         if (aenmbx0 == ha->mr.old_aenmbx0_state)
1537                                 ha->mr.fw_reset_timer_exp = 1;
1538                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1539                 } else if (aenmbx0 == 0xFFFFFFFF) {
1540                         uint32_t data0, data1;
1541
1542                         data0 = QLAFX00_RD_REG(ha,
1543                             QLAFX00_BAR1_BASE_ADDR_REG);
1544                         data1 = QLAFX00_RD_REG(ha,
1545                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1546
1547                         data0 &= 0xffff0000;
1548                         data1 &= 0x0000ffff;
1549
1550                         QLAFX00_WR_REG(ha,
1551                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1552                             (data0 | data1));
1553                 } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1554                         ha->mr.fw_reset_timer_tick =
1555                             QLAFX00_MAX_RESET_INTERVAL;
1556                 } else if (aenmbx0 == MBA_FW_RESET_FCT) {
1557                         ha->mr.fw_reset_timer_tick =
1558                             QLAFX00_MAX_RESET_INTERVAL;
1559                 }
1560                 if (ha->mr.old_aenmbx0_state != aenmbx0) {
1561                         ha->mr.old_aenmbx0_state = aenmbx0;
1562                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1563                 }
1564                 ha->mr.fw_reset_timer_tick--;
1565         }
1566         if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
1567                 /*
1568                  * Critical temperature recovery to be
1569                  * performed in timer routine
1570                  */
1571                 if (ha->mr.fw_critemp_timer_tick == 0) {
1572                         tempc = QLAFX00_GET_TEMPERATURE(ha);
1573                         ql_dbg(ql_dbg_timer, vha, 0x6012,
1574                             "ISPFx00(%s): Critical temp timer, "
1575                             "current SOC temperature: %d\n",
1576                             __func__, tempc);
1577                         if (tempc < ha->mr.critical_temperature) {
1578                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1579                                 clear_bit(FX00_CRITEMP_RECOVERY,
1580                                     &vha->dpc_flags);
1581                                 qla2xxx_wake_dpc(vha);
1582                         }
1583                         ha->mr.fw_critemp_timer_tick =
1584                             QLAFX00_CRITEMP_INTERVAL;
1585                 } else {
1586                         ha->mr.fw_critemp_timer_tick--;
1587                 }
1588         }
1589         if (ha->mr.host_info_resend) {
1590                 /*
1591                  * Incomplete host info might be sent to firmware
1592                  * durinng system boot - info should be resend
1593                  */
1594                 if (ha->mr.hinfo_resend_timer_tick == 0) {
1595                         ha->mr.host_info_resend = false;
1596                         set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
1597                         ha->mr.hinfo_resend_timer_tick =
1598                             QLAFX00_HINFO_RESEND_INTERVAL;
1599                         qla2xxx_wake_dpc(vha);
1600                 } else {
1601                         ha->mr.hinfo_resend_timer_tick--;
1602                 }
1603         }
1604
1605 }
1606
1607 /*
1608  *  qlfx00a_reset_initialize
1609  *      Re-initialize after a iSA device reset.
1610  *
1611  * Input:
1612  *      ha  = adapter block pointer.
1613  *
1614  * Returns:
1615  *      0 = success
1616  */
1617 int
1618 qlafx00_reset_initialize(scsi_qla_host_t *vha)
1619 {
1620         struct qla_hw_data *ha = vha->hw;
1621
1622         if (vha->device_flags & DFLG_DEV_FAILED) {
1623                 ql_dbg(ql_dbg_init, vha, 0x0142,
1624                     "Device in failed state\n");
1625                 return QLA_SUCCESS;
1626         }
1627
1628         ha->flags.mr_reset_hdlr_active = 1;
1629
1630         if (vha->flags.online) {
1631                 scsi_block_requests(vha->host);
1632                 qlafx00_abort_isp_cleanup(vha, false);
1633         }
1634
1635         ql_log(ql_log_info, vha, 0x0143,
1636             "(%s): succeeded.\n", __func__);
1637         ha->flags.mr_reset_hdlr_active = 0;
1638         return QLA_SUCCESS;
1639 }
1640
1641 /*
1642  *  qlafx00_abort_isp
1643  *      Resets ISP and aborts all outstanding commands.
1644  *
1645  * Input:
1646  *      ha  = adapter block pointer.
1647  *
1648  * Returns:
1649  *      0 = success
1650  */
1651 int
1652 qlafx00_abort_isp(scsi_qla_host_t *vha)
1653 {
1654         struct qla_hw_data *ha = vha->hw;
1655
1656         if (vha->flags.online) {
1657                 if (unlikely(pci_channel_offline(ha->pdev) &&
1658                     ha->flags.pci_channel_io_perm_failure)) {
1659                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1660                         return QLA_SUCCESS;
1661                 }
1662
1663                 scsi_block_requests(vha->host);
1664                 qlafx00_abort_isp_cleanup(vha, false);
1665         } else {
1666                 scsi_block_requests(vha->host);
1667                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1668                 vha->qla_stats.total_isp_aborts++;
1669                 ha->isp_ops->reset_chip(vha);
1670                 set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1671                 /* Clear the Interrupts */
1672                 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1673         }
1674
1675         ql_log(ql_log_info, vha, 0x0145,
1676             "(%s): succeeded.\n", __func__);
1677
1678         return QLA_SUCCESS;
1679 }
1680
1681 static inline fc_port_t*
1682 qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1683 {
1684         fc_port_t       *fcport;
1685
1686         /* Check for matching device in remote port list. */
1687         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1688                 if (fcport->tgt_id == tgt_id) {
1689                         ql_dbg(ql_dbg_async, vha, 0x5072,
1690                             "Matching fcport(%p) found with TGT-ID: 0x%x "
1691                             "and Remote TGT_ID: 0x%x\n",
1692                             fcport, fcport->tgt_id, tgt_id);
1693                         return fcport;
1694                 }
1695         }
1696         return NULL;
1697 }
1698
1699 static void
1700 qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1701 {
1702         fc_port_t       *fcport;
1703
1704         ql_log(ql_log_info, vha, 0x5073,
1705             "Detach TGT-ID: 0x%x\n", tgt_id);
1706
1707         fcport = qlafx00_get_fcport(vha, tgt_id);
1708         if (!fcport)
1709                 return;
1710
1711         qla2x00_mark_device_lost(vha, fcport, 0, 0);
1712
1713         return;
1714 }
1715
1716 int
1717 qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1718 {
1719         int rval = 0;
1720         uint32_t aen_code, aen_data;
1721
1722         aen_code = FCH_EVT_VENDOR_UNIQUE;
1723         aen_data = evt->u.aenfx.evtcode;
1724
1725         switch (evt->u.aenfx.evtcode) {
1726         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1727                 if (evt->u.aenfx.mbx[1] == 0) {
1728                         if (evt->u.aenfx.mbx[2] == 1) {
1729                                 if (!vha->flags.fw_tgt_reported)
1730                                         vha->flags.fw_tgt_reported = 1;
1731                                 atomic_set(&vha->loop_down_timer, 0);
1732                                 atomic_set(&vha->loop_state, LOOP_UP);
1733                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1734                                 qla2xxx_wake_dpc(vha);
1735                         } else if (evt->u.aenfx.mbx[2] == 2) {
1736                                 qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1737                         }
1738                 } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1739                         if (evt->u.aenfx.mbx[2] == 1) {
1740                                 if (!vha->flags.fw_tgt_reported)
1741                                         vha->flags.fw_tgt_reported = 1;
1742                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1743                         } else if (evt->u.aenfx.mbx[2] == 2) {
1744                                 vha->device_flags |= DFLG_NO_CABLE;
1745                                 qla2x00_mark_all_devices_lost(vha, 1);
1746                         }
1747                 }
1748                 break;
1749         case QLAFX00_MBA_LINK_UP:
1750                 aen_code = FCH_EVT_LINKUP;
1751                 aen_data = 0;
1752                 break;
1753         case QLAFX00_MBA_LINK_DOWN:
1754                 aen_code = FCH_EVT_LINKDOWN;
1755                 aen_data = 0;
1756                 break;
1757         case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
1758                 ql_log(ql_log_info, vha, 0x5082,
1759                     "Process critical temperature event "
1760                     "aenmb[0]: %x\n",
1761                     evt->u.aenfx.evtcode);
1762                 scsi_block_requests(vha->host);
1763                 qlafx00_abort_isp_cleanup(vha, true);
1764                 scsi_unblock_requests(vha->host);
1765                 break;
1766         }
1767
1768         fc_host_post_event(vha->host, fc_get_event_number(),
1769             aen_code, aen_data);
1770
1771         return rval;
1772 }
1773
1774 static void
1775 qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1776 {
1777         u64 port_name = 0, node_name = 0;
1778
1779         port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1780         node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1781
1782         fc_host_node_name(vha->host) = node_name;
1783         fc_host_port_name(vha->host) = port_name;
1784         if (!pinfo->port_type)
1785                 vha->hw->current_topology = ISP_CFG_F;
1786         if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1787                 atomic_set(&vha->loop_state, LOOP_READY);
1788         else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1789                 atomic_set(&vha->loop_state, LOOP_DOWN);
1790         vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1791 }
1792
1793 static void
1794 qla2x00_fxdisc_iocb_timeout(void *data)
1795 {
1796         srb_t *sp = data;
1797         struct srb_iocb *lio = &sp->u.iocb_cmd;
1798
1799         complete(&lio->u.fxiocb.fxiocb_comp);
1800 }
1801
1802 static void
1803 qla2x00_fxdisc_sp_done(void *ptr, int res)
1804 {
1805         srb_t *sp = ptr;
1806         struct srb_iocb *lio = &sp->u.iocb_cmd;
1807
1808         complete(&lio->u.fxiocb.fxiocb_comp);
1809 }
1810
1811 int
1812 qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
1813 {
1814         srb_t *sp;
1815         struct srb_iocb *fdisc;
1816         int rval = QLA_FUNCTION_FAILED;
1817         struct qla_hw_data *ha = vha->hw;
1818         struct host_system_info *phost_info;
1819         struct register_host_info *preg_hsi;
1820         struct new_utsname *p_sysid = NULL;
1821
1822         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1823         if (!sp)
1824                 goto done;
1825
1826         sp->type = SRB_FXIOCB_DCMD;
1827         sp->name = "fxdisc";
1828
1829         fdisc = &sp->u.iocb_cmd;
1830         fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1831         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1832
1833         switch (fx_type) {
1834         case FXDISC_GET_CONFIG_INFO:
1835         fdisc->u.fxiocb.flags =
1836                     SRB_FXDISC_RESP_DMA_VALID;
1837                 fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1838                 break;
1839         case FXDISC_GET_PORT_INFO:
1840                 fdisc->u.fxiocb.flags =
1841                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1842                 fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1843                 fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
1844                 break;
1845         case FXDISC_GET_TGT_NODE_INFO:
1846                 fdisc->u.fxiocb.flags =
1847                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1848                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1849                 fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
1850                 break;
1851         case FXDISC_GET_TGT_NODE_LIST:
1852                 fdisc->u.fxiocb.flags =
1853                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1854                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1855                 break;
1856         case FXDISC_REG_HOST_INFO:
1857                 fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1858                 fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1859                 p_sysid = utsname();
1860                 if (!p_sysid) {
1861                         ql_log(ql_log_warn, vha, 0x303c,
1862                             "Not able to get the system information\n");
1863                         goto done_free_sp;
1864                 }
1865                 break;
1866         case FXDISC_ABORT_IOCTL:
1867         default:
1868                 break;
1869         }
1870
1871         if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1872                 fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1873                     fdisc->u.fxiocb.req_len,
1874                     &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1875                 if (!fdisc->u.fxiocb.req_addr)
1876                         goto done_free_sp;
1877
1878                 if (fx_type == FXDISC_REG_HOST_INFO) {
1879                         preg_hsi = (struct register_host_info *)
1880                                 fdisc->u.fxiocb.req_addr;
1881                         phost_info = &preg_hsi->hsi;
1882                         memset(preg_hsi, 0, sizeof(struct register_host_info));
1883                         phost_info->os_type = OS_TYPE_LINUX;
1884                         strncpy(phost_info->sysname,
1885                             p_sysid->sysname, SYSNAME_LENGTH);
1886                         strncpy(phost_info->nodename,
1887                             p_sysid->nodename, NODENAME_LENGTH);
1888                         if (!strcmp(phost_info->nodename, "(none)"))
1889                                 ha->mr.host_info_resend = true;
1890                         strncpy(phost_info->release,
1891                             p_sysid->release, RELEASE_LENGTH);
1892                         strncpy(phost_info->version,
1893                             p_sysid->version, VERSION_LENGTH);
1894                         strncpy(phost_info->machine,
1895                             p_sysid->machine, MACHINE_LENGTH);
1896                         strncpy(phost_info->domainname,
1897                             p_sysid->domainname, DOMNAME_LENGTH);
1898                         strncpy(phost_info->hostdriver,
1899                             QLA2XXX_VERSION, VERSION_LENGTH);
1900                         preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
1901                         ql_dbg(ql_dbg_init, vha, 0x0149,
1902                             "ISP%04X: Host registration with firmware\n",
1903                             ha->pdev->device);
1904                         ql_dbg(ql_dbg_init, vha, 0x014a,
1905                             "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1906                             phost_info->os_type,
1907                             phost_info->sysname,
1908                             phost_info->nodename);
1909                         ql_dbg(ql_dbg_init, vha, 0x014b,
1910                             "release = '%s', version = '%s'\n",
1911                             phost_info->release,
1912                             phost_info->version);
1913                         ql_dbg(ql_dbg_init, vha, 0x014c,
1914                             "machine = '%s' "
1915                             "domainname = '%s', hostdriver = '%s'\n",
1916                             phost_info->machine,
1917                             phost_info->domainname,
1918                             phost_info->hostdriver);
1919                         ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1920                             phost_info, sizeof(*phost_info));
1921                 }
1922         }
1923
1924         if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1925                 fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1926                     fdisc->u.fxiocb.rsp_len,
1927                     &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1928                 if (!fdisc->u.fxiocb.rsp_addr)
1929                         goto done_unmap_req;
1930         }
1931
1932         fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1933         sp->done = qla2x00_fxdisc_sp_done;
1934
1935         rval = qla2x00_start_sp(sp);
1936         if (rval != QLA_SUCCESS)
1937                 goto done_unmap_dma;
1938
1939         wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1940
1941         if (fx_type == FXDISC_GET_CONFIG_INFO) {
1942                 struct config_info_data *pinfo =
1943                     (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1944                 strcpy(vha->hw->model_number, pinfo->model_num);
1945                 strcpy(vha->hw->model_desc, pinfo->model_description);
1946                 memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1947                     sizeof(vha->hw->mr.symbolic_name));
1948                 memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1949                     sizeof(vha->hw->mr.serial_num));
1950                 memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1951                     sizeof(vha->hw->mr.hw_version));
1952                 memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1953                     sizeof(vha->hw->mr.fw_version));
1954                 strim(vha->hw->mr.fw_version);
1955                 memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1956                     sizeof(vha->hw->mr.uboot_version));
1957                 memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1958                     sizeof(vha->hw->mr.fru_serial_num));
1959                 vha->hw->mr.critical_temperature =
1960                     (pinfo->nominal_temp_value) ?
1961                     pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
1962                 ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
1963                     QLAFX00_EXTENDED_IO_EN_MASK) != 0;
1964         } else if (fx_type == FXDISC_GET_PORT_INFO) {
1965                 struct port_info_data *pinfo =
1966                     (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1967                 memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1968                 memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1969                 vha->d_id.b.domain = pinfo->port_id[0];
1970                 vha->d_id.b.area = pinfo->port_id[1];
1971                 vha->d_id.b.al_pa = pinfo->port_id[2];
1972                 qlafx00_update_host_attr(vha, pinfo);
1973                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1974                     pinfo, 16);
1975         } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1976                 struct qlafx00_tgt_node_info *pinfo =
1977                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1978                 memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1979                 memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1980                 fcport->port_type = FCT_TARGET;
1981                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1982                     pinfo, 16);
1983         } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1984                 struct qlafx00_tgt_node_info *pinfo =
1985                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1986                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1987                     pinfo, 16);
1988                 memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1989         } else if (fx_type == FXDISC_ABORT_IOCTL)
1990                 fdisc->u.fxiocb.result =
1991                     (fdisc->u.fxiocb.result ==
1992                         cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
1993                     cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
1994
1995         rval = le32_to_cpu(fdisc->u.fxiocb.result);
1996
1997 done_unmap_dma:
1998         if (fdisc->u.fxiocb.rsp_addr)
1999                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
2000                     fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
2001
2002 done_unmap_req:
2003         if (fdisc->u.fxiocb.req_addr)
2004                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
2005                     fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
2006 done_free_sp:
2007         sp->free(sp);
2008 done:
2009         return rval;
2010 }
2011
2012 /*
2013  * qlafx00_initialize_adapter
2014  *      Initialize board.
2015  *
2016  * Input:
2017  *      ha = adapter block pointer.
2018  *
2019  * Returns:
2020  *      0 = success
2021  */
2022 int
2023 qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2024 {
2025         int     rval;
2026         struct qla_hw_data *ha = vha->hw;
2027         uint32_t tempc;
2028
2029         /* Clear adapter flags. */
2030         vha->flags.online = 0;
2031         ha->flags.chip_reset_done = 0;
2032         vha->flags.reset_active = 0;
2033         ha->flags.pci_channel_io_perm_failure = 0;
2034         ha->flags.eeh_busy = 0;
2035         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2036         atomic_set(&vha->loop_state, LOOP_DOWN);
2037         vha->device_flags = DFLG_NO_CABLE;
2038         vha->dpc_flags = 0;
2039         vha->flags.management_server_logged_in = 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         tempc = QLAFX00_GET_TEMPERATURE(ha);
2078         ql_dbg(ql_dbg_init, vha, 0x0152,
2079             "ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
2080             __func__, tempc);
2081
2082         return rval;
2083 }
2084
2085 uint32_t
2086 qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2087                       char *buf)
2088 {
2089         scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2090         int rval = QLA_FUNCTION_FAILED;
2091         uint32_t state[1];
2092
2093         if (qla2x00_reset_active(vha))
2094                 ql_log(ql_log_warn, vha, 0x70ce,
2095                     "ISP reset active.\n");
2096         else if (!vha->hw->flags.eeh_busy) {
2097                 rval = qlafx00_get_firmware_state(vha, state);
2098         }
2099         if (rval != QLA_SUCCESS)
2100                 memset(state, -1, sizeof(state));
2101
2102         return state[0];
2103 }
2104
2105 void
2106 qlafx00_get_host_speed(struct Scsi_Host *shost)
2107 {
2108         struct qla_hw_data *ha = ((struct scsi_qla_host *)
2109                                         (shost_priv(shost)))->hw;
2110         u32 speed = FC_PORTSPEED_UNKNOWN;
2111
2112         switch (ha->link_data_rate) {
2113         case QLAFX00_PORT_SPEED_2G:
2114                 speed = FC_PORTSPEED_2GBIT;
2115                 break;
2116         case QLAFX00_PORT_SPEED_4G:
2117                 speed = FC_PORTSPEED_4GBIT;
2118                 break;
2119         case QLAFX00_PORT_SPEED_8G:
2120                 speed = FC_PORTSPEED_8GBIT;
2121                 break;
2122         case QLAFX00_PORT_SPEED_10G:
2123                 speed = FC_PORTSPEED_10GBIT;
2124                 break;
2125         }
2126         fc_host_speed(shost) = speed;
2127 }
2128
2129 /** QLAFX00 specific ISR implementation functions */
2130
2131 static inline void
2132 qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2133                      uint32_t sense_len, struct rsp_que *rsp, int res)
2134 {
2135         struct scsi_qla_host *vha = sp->vha;
2136         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2137         uint32_t track_sense_len;
2138
2139         SET_FW_SENSE_LEN(sp, sense_len);
2140
2141         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2142                 sense_len = SCSI_SENSE_BUFFERSIZE;
2143
2144         SET_CMD_SENSE_LEN(sp, sense_len);
2145         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2146         track_sense_len = sense_len;
2147
2148         if (sense_len > par_sense_len)
2149                 sense_len = par_sense_len;
2150
2151         memcpy(cp->sense_buffer, sense_data, sense_len);
2152
2153         SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2154
2155         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2156         track_sense_len -= sense_len;
2157         SET_CMD_SENSE_LEN(sp, track_sense_len);
2158
2159         ql_dbg(ql_dbg_io, vha, 0x304d,
2160             "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2161             sense_len, par_sense_len, track_sense_len);
2162         if (GET_FW_SENSE_LEN(sp) > 0) {
2163                 rsp->status_srb = sp;
2164                 cp->result = res;
2165         }
2166
2167         if (sense_len) {
2168                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2169                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2170                     sp->vha->host_no, cp->device->id, cp->device->lun,
2171                     cp);
2172                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2173                     cp->sense_buffer, sense_len);
2174         }
2175 }
2176
2177 static void
2178 qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2179                       struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2180                       __le16 sstatus, __le16 cpstatus)
2181 {
2182         struct srb_iocb *tmf;
2183
2184         tmf = &sp->u.iocb_cmd;
2185         if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
2186             (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
2187                 cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2188         tmf->u.tmf.comp_status = cpstatus;
2189         sp->done(sp, 0);
2190 }
2191
2192 static void
2193 qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2194                          struct abort_iocb_entry_fx00 *pkt)
2195 {
2196         const char func[] = "ABT_IOCB";
2197         srb_t *sp;
2198         struct srb_iocb *abt;
2199
2200         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2201         if (!sp)
2202                 return;
2203
2204         abt = &sp->u.iocb_cmd;
2205         abt->u.abt.comp_status = pkt->tgt_id_sts;
2206         sp->done(sp, 0);
2207 }
2208
2209 static void
2210 qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2211                          struct ioctl_iocb_entry_fx00 *pkt)
2212 {
2213         const char func[] = "IOSB_IOCB";
2214         srb_t *sp;
2215         struct bsg_job *bsg_job;
2216         struct fc_bsg_reply *bsg_reply;
2217         struct srb_iocb *iocb_job;
2218         int res = 0;
2219         struct qla_mt_iocb_rsp_fx00 fstatus;
2220         uint8_t *fw_sts_ptr;
2221
2222         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2223         if (!sp)
2224                 return;
2225
2226         if (sp->type == SRB_FXIOCB_DCMD) {
2227                 iocb_job = &sp->u.iocb_cmd;
2228                 iocb_job->u.fxiocb.seq_number = pkt->seq_no;
2229                 iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
2230                 iocb_job->u.fxiocb.result = pkt->status;
2231                 if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2232                         iocb_job->u.fxiocb.req_data =
2233                             pkt->dataword_r;
2234         } else {
2235                 bsg_job = sp->u.bsg_job;
2236                 bsg_reply = bsg_job->reply;
2237
2238                 memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2239
2240                 fstatus.reserved_1 = pkt->reserved_0;
2241                 fstatus.func_type = pkt->comp_func_num;
2242                 fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2243                 fstatus.ioctl_data = pkt->dataword_r;
2244                 fstatus.adapid = pkt->adapid;
2245                 fstatus.reserved_2 = pkt->dataword_r_extra;
2246                 fstatus.res_count = pkt->residuallen;
2247                 fstatus.status = pkt->status;
2248                 fstatus.seq_number = pkt->seq_no;
2249                 memcpy(fstatus.reserved_3,
2250                     pkt->reserved_2, 20 * sizeof(uint8_t));
2251
2252                 fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
2253
2254                 memcpy(fw_sts_ptr, &fstatus, sizeof(fstatus));
2255                 bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2256                         sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2257
2258                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2259                     sp->vha, 0x5080, pkt, sizeof(*pkt));
2260
2261                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2262                     sp->vha, 0x5074,
2263                     fw_sts_ptr, sizeof(fstatus));
2264
2265                 res = bsg_reply->result = DID_OK << 16;
2266                 bsg_reply->reply_payload_rcv_len =
2267                     bsg_job->reply_payload.payload_len;
2268         }
2269         sp->done(sp, res);
2270 }
2271
2272 /**
2273  * qlafx00_status_entry() - Process a Status IOCB entry.
2274  * @vha: SCSI driver HA context
2275  * @rsp: response queue
2276  * @pkt: Entry pointer
2277  */
2278 static void
2279 qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2280 {
2281         srb_t           *sp;
2282         fc_port_t       *fcport;
2283         struct scsi_cmnd *cp;
2284         struct sts_entry_fx00 *sts;
2285         __le16          comp_status;
2286         __le16          scsi_status;
2287         __le16          lscsi_status;
2288         int32_t         resid;
2289         uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2290             fw_resid_len;
2291         uint8_t         *rsp_info = NULL, *sense_data = NULL;
2292         struct qla_hw_data *ha = vha->hw;
2293         uint32_t hindex, handle;
2294         uint16_t que;
2295         struct req_que *req;
2296         int logit = 1;
2297         int res = 0;
2298
2299         sts = (struct sts_entry_fx00 *) pkt;
2300
2301         comp_status = sts->comp_status;
2302         scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2303         hindex = sts->handle;
2304         handle = LSW(hindex);
2305
2306         que = MSW(hindex);
2307         req = ha->req_q_map[que];
2308
2309         /* Validate handle. */
2310         if (handle < req->num_outstanding_cmds)
2311                 sp = req->outstanding_cmds[handle];
2312         else
2313                 sp = NULL;
2314
2315         if (sp == NULL) {
2316                 ql_dbg(ql_dbg_io, vha, 0x3034,
2317                     "Invalid status handle (0x%x).\n", handle);
2318
2319                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2320                 qla2xxx_wake_dpc(vha);
2321                 return;
2322         }
2323
2324         if (sp->type == SRB_TM_CMD) {
2325                 req->outstanding_cmds[handle] = NULL;
2326                 qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2327                     scsi_status, comp_status);
2328                 return;
2329         }
2330
2331         /* Fast path completion. */
2332         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2333                 qla2x00_process_completed_request(vha, req, handle);
2334                 return;
2335         }
2336
2337         req->outstanding_cmds[handle] = NULL;
2338         cp = GET_CMD_SP(sp);
2339         if (cp == NULL) {
2340                 ql_dbg(ql_dbg_io, vha, 0x3048,
2341                     "Command already returned (0x%x/%p).\n",
2342                     handle, sp);
2343
2344                 return;
2345         }
2346
2347         lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2348
2349         fcport = sp->fcport;
2350
2351         sense_len = par_sense_len = rsp_info_len = resid_len =
2352                 fw_resid_len = 0;
2353         if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
2354                 sense_len = sts->sense_len;
2355         if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2356             | (uint16_t)SS_RESIDUAL_OVER)))
2357                 resid_len = le32_to_cpu(sts->residual_len);
2358         if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2359                 fw_resid_len = le32_to_cpu(sts->residual_len);
2360         rsp_info = sense_data = sts->data;
2361         par_sense_len = sizeof(sts->data);
2362
2363         /* Check for overrun. */
2364         if (comp_status == CS_COMPLETE &&
2365             scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
2366                 comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2367
2368         /*
2369          * Based on Host and scsi status generate status code for Linux
2370          */
2371         switch (le16_to_cpu(comp_status)) {
2372         case CS_COMPLETE:
2373         case CS_QUEUE_FULL:
2374                 if (scsi_status == 0) {
2375                         res = DID_OK << 16;
2376                         break;
2377                 }
2378                 if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2379                     | (uint16_t)SS_RESIDUAL_OVER))) {
2380                         resid = resid_len;
2381                         scsi_set_resid(cp, resid);
2382
2383                         if (!lscsi_status &&
2384                             ((unsigned)(scsi_bufflen(cp) - resid) <
2385                              cp->underflow)) {
2386                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2387                                     "Mid-layer underflow "
2388                                     "detected (0x%x of 0x%x bytes).\n",
2389                                     resid, scsi_bufflen(cp));
2390
2391                                 res = DID_ERROR << 16;
2392                                 break;
2393                         }
2394                 }
2395                 res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2396
2397                 if (lscsi_status ==
2398                     cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2399                         ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2400                             "QUEUE FULL detected.\n");
2401                         break;
2402                 }
2403                 logit = 0;
2404                 if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2405                         break;
2406
2407                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2408                 if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2409                         break;
2410
2411                 qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2412                     rsp, res);
2413                 break;
2414
2415         case CS_DATA_UNDERRUN:
2416                 /* Use F/W calculated residual length. */
2417                 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2418                         resid = fw_resid_len;
2419                 else
2420                         resid = resid_len;
2421                 scsi_set_resid(cp, resid);
2422                 if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2423                         if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2424                             && fw_resid_len != resid_len) {
2425                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2426                                     "Dropped frame(s) detected "
2427                                     "(0x%x of 0x%x bytes).\n",
2428                                     resid, scsi_bufflen(cp));
2429
2430                                 res = DID_ERROR << 16 |
2431                                     le16_to_cpu(lscsi_status);
2432                                 goto check_scsi_status;
2433                         }
2434
2435                         if (!lscsi_status &&
2436                             ((unsigned)(scsi_bufflen(cp) - resid) <
2437                             cp->underflow)) {
2438                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2439                                     "Mid-layer underflow "
2440                                     "detected (0x%x of 0x%x bytes, "
2441                                     "cp->underflow: 0x%x).\n",
2442                                     resid, scsi_bufflen(cp), cp->underflow);
2443
2444                                 res = DID_ERROR << 16;
2445                                 break;
2446                         }
2447                 } else if (lscsi_status !=
2448                     cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
2449                     lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2450                         /*
2451                          * scsi status of task set and busy are considered
2452                          * to be task not completed.
2453                          */
2454
2455                         ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2456                             "Dropped frame(s) detected (0x%x "
2457                             "of 0x%x bytes).\n", resid,
2458                             scsi_bufflen(cp));
2459
2460                         res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2461                         goto check_scsi_status;
2462                 } else {
2463                         ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2464                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2465                             scsi_status, lscsi_status);
2466                 }
2467
2468                 res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2469                 logit = 0;
2470
2471 check_scsi_status:
2472                 /*
2473                  * Check to see if SCSI Status is non zero. If so report SCSI
2474                  * Status.
2475                  */
2476                 if (lscsi_status != 0) {
2477                         if (lscsi_status ==
2478                             cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2479                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2480                                     "QUEUE FULL detected.\n");
2481                                 logit = 1;
2482                                 break;
2483                         }
2484                         if (lscsi_status !=
2485                             cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2486                                 break;
2487
2488                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2489                         if (!(scsi_status &
2490                             cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2491                                 break;
2492
2493                         qlafx00_handle_sense(sp, sense_data, par_sense_len,
2494                             sense_len, rsp, res);
2495                 }
2496                 break;
2497
2498         case CS_PORT_LOGGED_OUT:
2499         case CS_PORT_CONFIG_CHG:
2500         case CS_PORT_BUSY:
2501         case CS_INCOMPLETE:
2502         case CS_PORT_UNAVAILABLE:
2503         case CS_TIMEOUT:
2504         case CS_RESET:
2505
2506                 /*
2507                  * We are going to have the fc class block the rport
2508                  * while we try to recover so instruct the mid layer
2509                  * to requeue until the class decides how to handle this.
2510                  */
2511                 res = DID_TRANSPORT_DISRUPTED << 16;
2512
2513                 ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2514                     "Port down status: port-state=0x%x.\n",
2515                     atomic_read(&fcport->state));
2516
2517                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2518                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2519                 break;
2520
2521         case CS_ABORTED:
2522                 res = DID_RESET << 16;
2523                 break;
2524
2525         default:
2526                 res = DID_ERROR << 16;
2527                 break;
2528         }
2529
2530         if (logit)
2531                 ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2532                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2533                     "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
2534                     "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
2535                     "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2536                     comp_status, scsi_status, res, vha->host_no,
2537                     cp->device->id, cp->device->lun, fcport->tgt_id,
2538                     lscsi_status, cp->cmnd, scsi_bufflen(cp),
2539                     rsp_info, resid_len, fw_resid_len, sense_len,
2540                     par_sense_len, rsp_info_len);
2541
2542         if (rsp->status_srb == NULL)
2543                 sp->done(sp, res);
2544 }
2545
2546 /**
2547  * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2548  * @rsp: response queue
2549  * @pkt: Entry pointer
2550  *
2551  * Extended sense data.
2552  */
2553 static void
2554 qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2555 {
2556         uint8_t sense_sz = 0;
2557         struct qla_hw_data *ha = rsp->hw;
2558         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2559         srb_t *sp = rsp->status_srb;
2560         struct scsi_cmnd *cp;
2561         uint32_t sense_len;
2562         uint8_t *sense_ptr;
2563
2564         if (!sp) {
2565                 ql_dbg(ql_dbg_io, vha, 0x3037,
2566                     "no SP, sp = %p\n", sp);
2567                 return;
2568         }
2569
2570         if (!GET_FW_SENSE_LEN(sp)) {
2571                 ql_dbg(ql_dbg_io, vha, 0x304b,
2572                     "no fw sense data, sp = %p\n", sp);
2573                 return;
2574         }
2575         cp = GET_CMD_SP(sp);
2576         if (cp == NULL) {
2577                 ql_log(ql_log_warn, vha, 0x303b,
2578                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2579
2580                 rsp->status_srb = NULL;
2581                 return;
2582         }
2583
2584         if (!GET_CMD_SENSE_LEN(sp)) {
2585                 ql_dbg(ql_dbg_io, vha, 0x304c,
2586                     "no sense data, sp = %p\n", sp);
2587         } else {
2588                 sense_len = GET_CMD_SENSE_LEN(sp);
2589                 sense_ptr = GET_CMD_SENSE_PTR(sp);
2590                 ql_dbg(ql_dbg_io, vha, 0x304f,
2591                     "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2592                     sp, sense_len, sense_ptr);
2593
2594                 if (sense_len > sizeof(pkt->data))
2595                         sense_sz = sizeof(pkt->data);
2596                 else
2597                         sense_sz = sense_len;
2598
2599                 /* Move sense data. */
2600                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2601                     pkt, sizeof(*pkt));
2602                 memcpy(sense_ptr, pkt->data, sense_sz);
2603                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2604                     sense_ptr, sense_sz);
2605
2606                 sense_len -= sense_sz;
2607                 sense_ptr += sense_sz;
2608
2609                 SET_CMD_SENSE_PTR(sp, sense_ptr);
2610                 SET_CMD_SENSE_LEN(sp, sense_len);
2611         }
2612         sense_len = GET_FW_SENSE_LEN(sp);
2613         sense_len = (sense_len > sizeof(pkt->data)) ?
2614             (sense_len - sizeof(pkt->data)) : 0;
2615         SET_FW_SENSE_LEN(sp, sense_len);
2616
2617         /* Place command on done queue. */
2618         if (sense_len == 0) {
2619                 rsp->status_srb = NULL;
2620                 sp->done(sp, cp->result);
2621         }
2622 }
2623
2624 /**
2625  * qlafx00_multistatus_entry() - Process Multi response queue entries.
2626  * @vha: SCSI driver HA context
2627  * @rsp: response queue
2628  * @pkt: received packet
2629  */
2630 static void
2631 qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2632         struct rsp_que *rsp, void *pkt)
2633 {
2634         srb_t           *sp;
2635         struct multi_sts_entry_fx00 *stsmfx;
2636         struct qla_hw_data *ha = vha->hw;
2637         uint32_t handle, hindex, handle_count, i;
2638         uint16_t que;
2639         struct req_que *req;
2640         __le32 *handle_ptr;
2641
2642         stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2643
2644         handle_count = stsmfx->handle_count;
2645
2646         if (handle_count > MAX_HANDLE_COUNT) {
2647                 ql_dbg(ql_dbg_io, vha, 0x3035,
2648                     "Invalid handle count (0x%x).\n", handle_count);
2649                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2650                 qla2xxx_wake_dpc(vha);
2651                 return;
2652         }
2653
2654         handle_ptr =  &stsmfx->handles[0];
2655
2656         for (i = 0; i < handle_count; i++) {
2657                 hindex = le32_to_cpu(*handle_ptr);
2658                 handle = LSW(hindex);
2659                 que = MSW(hindex);
2660                 req = ha->req_q_map[que];
2661
2662                 /* Validate handle. */
2663                 if (handle < req->num_outstanding_cmds)
2664                         sp = req->outstanding_cmds[handle];
2665                 else
2666                         sp = NULL;
2667
2668                 if (sp == NULL) {
2669                         ql_dbg(ql_dbg_io, vha, 0x3044,
2670                             "Invalid status handle (0x%x).\n", handle);
2671                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2672                         qla2xxx_wake_dpc(vha);
2673                         return;
2674                 }
2675                 qla2x00_process_completed_request(vha, req, handle);
2676                 handle_ptr++;
2677         }
2678 }
2679
2680 /**
2681  * qlafx00_error_entry() - Process an error entry.
2682  * @vha: SCSI driver HA context
2683  * @rsp: response queue
2684  * @pkt: Entry pointer
2685  */
2686 static void
2687 qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2688                     struct sts_entry_fx00 *pkt)
2689 {
2690         srb_t *sp;
2691         struct qla_hw_data *ha = vha->hw;
2692         const char func[] = "ERROR-IOCB";
2693         uint16_t que = 0;
2694         struct req_que *req = NULL;
2695         int res = DID_ERROR << 16;
2696
2697         req = ha->req_q_map[que];
2698
2699         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2700         if (sp) {
2701                 sp->done(sp, res);
2702                 return;
2703         }
2704
2705         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2706         qla2xxx_wake_dpc(vha);
2707 }
2708
2709 /**
2710  * qlafx00_process_response_queue() - Process response queue entries.
2711  * @vha: SCSI driver HA context
2712  * @rsp: response queue
2713  */
2714 static void
2715 qlafx00_process_response_queue(struct scsi_qla_host *vha,
2716         struct rsp_que *rsp)
2717 {
2718         struct sts_entry_fx00 *pkt;
2719         response_t *lptr;
2720         uint16_t lreq_q_in = 0;
2721         uint16_t lreq_q_out = 0;
2722
2723         lreq_q_in = RD_REG_DWORD(rsp->rsp_q_in);
2724         lreq_q_out = rsp->ring_index;
2725
2726         while (lreq_q_in != lreq_q_out) {
2727                 lptr = rsp->ring_ptr;
2728                 memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
2729                     sizeof(rsp->rsp_pkt));
2730                 pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2731
2732                 rsp->ring_index++;
2733                 lreq_q_out++;
2734                 if (rsp->ring_index == rsp->length) {
2735                         lreq_q_out = 0;
2736                         rsp->ring_index = 0;
2737                         rsp->ring_ptr = rsp->ring;
2738                 } else {
2739                         rsp->ring_ptr++;
2740                 }
2741
2742                 if (pkt->entry_status != 0 &&
2743                     pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2744                         ql_dbg(ql_dbg_async, vha, 0x507f,
2745                                "type of error status in response: 0x%x\n",
2746                                pkt->entry_status);
2747                         qlafx00_error_entry(vha, rsp,
2748                                             (struct sts_entry_fx00 *)pkt);
2749                         continue;
2750                 }
2751
2752                 switch (pkt->entry_type) {
2753                 case STATUS_TYPE_FX00:
2754                         qlafx00_status_entry(vha, rsp, pkt);
2755                         break;
2756
2757                 case STATUS_CONT_TYPE_FX00:
2758                         qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2759                         break;
2760
2761                 case MULTI_STATUS_TYPE_FX00:
2762                         qlafx00_multistatus_entry(vha, rsp, pkt);
2763                         break;
2764
2765                 case ABORT_IOCB_TYPE_FX00:
2766                         qlafx00_abort_iocb_entry(vha, rsp->req,
2767                            (struct abort_iocb_entry_fx00 *)pkt);
2768                         break;
2769
2770                 case IOCTL_IOSB_TYPE_FX00:
2771                         qlafx00_ioctl_iosb_entry(vha, rsp->req,
2772                             (struct ioctl_iocb_entry_fx00 *)pkt);
2773                         break;
2774                 default:
2775                         /* Type Not Supported. */
2776                         ql_dbg(ql_dbg_async, vha, 0x5081,
2777                             "Received unknown response pkt type %x "
2778                             "entry status=%x.\n",
2779                             pkt->entry_type, pkt->entry_status);
2780                         break;
2781                 }
2782         }
2783
2784         /* Adjust ring index */
2785         WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2786 }
2787
2788 /**
2789  * qlafx00_async_event() - Process aynchronous events.
2790  * @vha: SCSI driver HA context
2791  */
2792 static void
2793 qlafx00_async_event(scsi_qla_host_t *vha)
2794 {
2795         struct qla_hw_data *ha = vha->hw;
2796         struct device_reg_fx00 __iomem *reg;
2797         int data_size = 1;
2798
2799         reg = &ha->iobase->ispfx00;
2800         /* Setup to process RIO completion. */
2801         switch (ha->aenmb[0]) {
2802         case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2803                 ql_log(ql_log_warn, vha, 0x5079,
2804                     "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2805                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2806                 break;
2807
2808         case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2809                 ql_dbg(ql_dbg_async, vha, 0x5076,
2810                     "Asynchronous FW shutdown requested.\n");
2811                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2812                 qla2xxx_wake_dpc(vha);
2813                 break;
2814
2815         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2816                 ha->aenmb[1] = RD_REG_DWORD(&reg->aenmailbox1);
2817                 ha->aenmb[2] = RD_REG_DWORD(&reg->aenmailbox2);
2818                 ha->aenmb[3] = RD_REG_DWORD(&reg->aenmailbox3);
2819                 ql_dbg(ql_dbg_async, vha, 0x5077,
2820                     "Asynchronous port Update received "
2821                     "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2822                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2823                 data_size = 4;
2824                 break;
2825
2826         case QLAFX00_MBA_TEMP_OVER:     /* Over temperature event */
2827                 ql_log(ql_log_info, vha, 0x5085,
2828                     "Asynchronous over temperature event received "
2829                     "aenmb[0]: %x\n",
2830                     ha->aenmb[0]);
2831                 break;
2832
2833         case QLAFX00_MBA_TEMP_NORM:     /* Normal temperature event */
2834                 ql_log(ql_log_info, vha, 0x5086,
2835                     "Asynchronous normal temperature event received "
2836                     "aenmb[0]: %x\n",
2837                     ha->aenmb[0]);
2838                 break;
2839
2840         case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
2841                 ql_log(ql_log_info, vha, 0x5083,
2842                     "Asynchronous critical temperature event received "
2843                     "aenmb[0]: %x\n",
2844                 ha->aenmb[0]);
2845                 break;
2846
2847         default:
2848                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2849                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2850                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2851                 ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2852                 ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2853                 ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2854                 ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2855                 ql_dbg(ql_dbg_async, vha, 0x5078,
2856                     "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2857                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2858                     ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2859                 break;
2860         }
2861         qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2862             (uint32_t *)ha->aenmb, data_size);
2863 }
2864
2865 /**
2866  * qlafx00x_mbx_completion() - Process mailbox command completions.
2867  * @vha: SCSI driver HA context
2868  * @mb0: value to be written into mailbox register 0
2869  */
2870 static void
2871 qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2872 {
2873         uint16_t        cnt;
2874         uint32_t __iomem *wptr;
2875         struct qla_hw_data *ha = vha->hw;
2876         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2877
2878         if (!ha->mcp32)
2879                 ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2880
2881         /* Load return mailbox registers. */
2882         ha->flags.mbox_int = 1;
2883         ha->mailbox_out32[0] = mb0;
2884         wptr = (uint32_t __iomem *)&reg->mailbox17;
2885
2886         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2887                 ha->mailbox_out32[cnt] = RD_REG_DWORD(wptr);
2888                 wptr++;
2889         }
2890 }
2891
2892 /**
2893  * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2894  * @irq: interrupt number
2895  * @dev_id: SCSI driver HA context
2896  *
2897  * Called by system whenever the host adapter generates an interrupt.
2898  *
2899  * Returns handled flag.
2900  */
2901 irqreturn_t
2902 qlafx00_intr_handler(int irq, void *dev_id)
2903 {
2904         scsi_qla_host_t *vha;
2905         struct qla_hw_data *ha;
2906         struct device_reg_fx00 __iomem *reg;
2907         int             status;
2908         unsigned long   iter;
2909         uint32_t        stat;
2910         uint32_t        mb[8];
2911         struct rsp_que *rsp;
2912         unsigned long   flags;
2913         uint32_t clr_intr = 0;
2914         uint32_t intr_stat = 0;
2915
2916         rsp = (struct rsp_que *) dev_id;
2917         if (!rsp) {
2918                 ql_log(ql_log_info, NULL, 0x507d,
2919                     "%s: NULL response queue pointer.\n", __func__);
2920                 return IRQ_NONE;
2921         }
2922
2923         ha = rsp->hw;
2924         reg = &ha->iobase->ispfx00;
2925         status = 0;
2926
2927         if (unlikely(pci_channel_offline(ha->pdev)))
2928                 return IRQ_HANDLED;
2929
2930         spin_lock_irqsave(&ha->hardware_lock, flags);
2931         vha = pci_get_drvdata(ha->pdev);
2932         for (iter = 50; iter--; clr_intr = 0) {
2933                 stat = QLAFX00_RD_INTR_REG(ha);
2934                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2935                         break;
2936                 intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
2937                 if (!intr_stat)
2938                         break;
2939
2940                 if (stat & QLAFX00_INTR_MB_CMPLT) {
2941                         mb[0] = RD_REG_WORD(&reg->mailbox16);
2942                         qlafx00_mbx_completion(vha, mb[0]);
2943                         status |= MBX_INTERRUPT;
2944                         clr_intr |= QLAFX00_INTR_MB_CMPLT;
2945                 }
2946                 if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
2947                         ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2948                         qlafx00_async_event(vha);
2949                         clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2950                 }
2951                 if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
2952                         qlafx00_process_response_queue(vha, rsp);
2953                         clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2954                 }
2955
2956                 QLAFX00_CLR_INTR_REG(ha, clr_intr);
2957                 QLAFX00_RD_INTR_REG(ha);
2958         }
2959
2960         qla2x00_handle_mbx_completion(ha, status);
2961         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2962
2963         return IRQ_HANDLED;
2964 }
2965
2966 /** QLAFX00 specific IOCB implementation functions */
2967
2968 static inline cont_a64_entry_t *
2969 qlafx00_prep_cont_type1_iocb(struct req_que *req,
2970                              cont_a64_entry_t *lcont_pkt)
2971 {
2972         cont_a64_entry_t *cont_pkt;
2973
2974         /* Adjust ring index. */
2975         req->ring_index++;
2976         if (req->ring_index == req->length) {
2977                 req->ring_index = 0;
2978                 req->ring_ptr = req->ring;
2979         } else {
2980                 req->ring_ptr++;
2981         }
2982
2983         cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2984
2985         /* Load packet defaults. */
2986         lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
2987
2988         return cont_pkt;
2989 }
2990
2991 static inline void
2992 qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2993                          uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2994 {
2995         uint16_t        avail_dsds;
2996         struct dsd64    *cur_dsd;
2997         scsi_qla_host_t *vha;
2998         struct scsi_cmnd *cmd;
2999         struct scatterlist *sg;
3000         int i, cont;
3001         struct req_que *req;
3002         cont_a64_entry_t lcont_pkt;
3003         cont_a64_entry_t *cont_pkt;
3004
3005         vha = sp->vha;
3006         req = vha->req;
3007
3008         cmd = GET_CMD_SP(sp);
3009         cont = 0;
3010         cont_pkt = NULL;
3011
3012         /* Update entry type to indicate Command Type 3 IOCB */
3013         lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3014
3015         /* No data transfer */
3016         if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3017                 lcmd_pkt->byte_count = cpu_to_le32(0);
3018                 return;
3019         }
3020
3021         /* Set transfer direction */
3022         if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3023                 lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3024                 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3025         } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3026                 lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3027                 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3028         }
3029
3030         /* One DSD is available in the Command Type 3 IOCB */
3031         avail_dsds = 1;
3032         cur_dsd = &lcmd_pkt->dsd;
3033
3034         /* Load data segments */
3035         scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3036                 /* Allocate additional continuation packets? */
3037                 if (avail_dsds == 0) {
3038                         /*
3039                          * Five DSDs are available in the Continuation
3040                          * Type 1 IOCB.
3041                          */
3042                         memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3043                         cont_pkt =
3044                             qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3045                         cur_dsd = lcont_pkt.dsd;
3046                         avail_dsds = 5;
3047                         cont = 1;
3048                 }
3049
3050                 append_dsd64(&cur_dsd, sg);
3051                 avail_dsds--;
3052                 if (avail_dsds == 0 && cont == 1) {
3053                         cont = 0;
3054                         memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3055                             sizeof(lcont_pkt));
3056                 }
3057
3058         }
3059         if (avail_dsds != 0 && cont == 1) {
3060                 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3061                     sizeof(lcont_pkt));
3062         }
3063 }
3064
3065 /**
3066  * qlafx00_start_scsi() - Send a SCSI command to the ISP
3067  * @sp: command to send to the ISP
3068  *
3069  * Returns non-zero if a failure occurred, else zero.
3070  */
3071 int
3072 qlafx00_start_scsi(srb_t *sp)
3073 {
3074         int             nseg;
3075         unsigned long   flags;
3076         uint32_t        index;
3077         uint32_t        handle;
3078         uint16_t        cnt;
3079         uint16_t        req_cnt;
3080         uint16_t        tot_dsds;
3081         struct req_que *req = NULL;
3082         struct rsp_que *rsp = NULL;
3083         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3084         struct scsi_qla_host *vha = sp->vha;
3085         struct qla_hw_data *ha = vha->hw;
3086         struct cmd_type_7_fx00 *cmd_pkt;
3087         struct cmd_type_7_fx00 lcmd_pkt;
3088         struct scsi_lun llun;
3089
3090         /* Setup device pointers. */
3091         rsp = ha->rsp_q_map[0];
3092         req = vha->req;
3093
3094         /* So we know we haven't pci_map'ed anything yet */
3095         tot_dsds = 0;
3096
3097         /* Acquire ring specific lock */
3098         spin_lock_irqsave(&ha->hardware_lock, flags);
3099
3100         /* Check for room in outstanding command list. */
3101         handle = req->current_outstanding_cmd;
3102         for (index = 1; index < req->num_outstanding_cmds; index++) {
3103                 handle++;
3104                 if (handle == req->num_outstanding_cmds)
3105                         handle = 1;
3106                 if (!req->outstanding_cmds[handle])
3107                         break;
3108         }
3109         if (index == req->num_outstanding_cmds)
3110                 goto queuing_error;
3111
3112         /* Map the sg table so we have an accurate count of sg entries needed */
3113         if (scsi_sg_count(cmd)) {
3114                 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3115                     scsi_sg_count(cmd), cmd->sc_data_direction);
3116                 if (unlikely(!nseg))
3117                         goto queuing_error;
3118         } else
3119                 nseg = 0;
3120
3121         tot_dsds = nseg;
3122         req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3123         if (req->cnt < (req_cnt + 2)) {
3124                 cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3125
3126                 if (req->ring_index < cnt)
3127                         req->cnt = cnt - req->ring_index;
3128                 else
3129                         req->cnt = req->length -
3130                                 (req->ring_index - cnt);
3131                 if (req->cnt < (req_cnt + 2))
3132                         goto queuing_error;
3133         }
3134
3135         /* Build command packet. */
3136         req->current_outstanding_cmd = handle;
3137         req->outstanding_cmds[handle] = sp;
3138         sp->handle = handle;
3139         cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3140         req->cnt -= req_cnt;
3141
3142         cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3143
3144         memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3145
3146         lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3147         lcmd_pkt.reserved_0 = 0;
3148         lcmd_pkt.port_path_ctrl = 0;
3149         lcmd_pkt.reserved_1 = 0;
3150         lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3151         lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3152
3153         int_to_scsilun(cmd->device->lun, &llun);
3154         host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3155             sizeof(lcmd_pkt.lun));
3156
3157         /* Load SCSI command packet. */
3158         host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3159         lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3160
3161         /* Build IOCB segments */
3162         qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3163
3164         /* Set total data segment count. */
3165         lcmd_pkt.entry_count = (uint8_t)req_cnt;
3166
3167         /* Specify response queue number where completion should happen */
3168         lcmd_pkt.entry_status = (uint8_t) rsp->id;
3169
3170         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3171             cmd->cmnd, cmd->cmd_len);
3172         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3173             &lcmd_pkt, sizeof(lcmd_pkt));
3174
3175         memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3176         wmb();
3177
3178         /* Adjust ring index. */
3179         req->ring_index++;
3180         if (req->ring_index == req->length) {
3181                 req->ring_index = 0;
3182                 req->ring_ptr = req->ring;
3183         } else
3184                 req->ring_ptr++;
3185
3186         sp->flags |= SRB_DMA_VALID;
3187
3188         /* Set chip new ring index. */
3189         WRT_REG_DWORD(req->req_q_in, req->ring_index);
3190         QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3191
3192         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3193         return QLA_SUCCESS;
3194
3195 queuing_error:
3196         if (tot_dsds)
3197                 scsi_dma_unmap(cmd);
3198
3199         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3200
3201         return QLA_FUNCTION_FAILED;
3202 }
3203
3204 void
3205 qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3206 {
3207         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3208         scsi_qla_host_t *vha = sp->vha;
3209         struct req_que *req = vha->req;
3210         struct tsk_mgmt_entry_fx00 tm_iocb;
3211         struct scsi_lun llun;
3212
3213         memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3214         tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3215         tm_iocb.entry_count = 1;
3216         tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3217         tm_iocb.reserved_0 = 0;
3218         tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3219         tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3220         if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3221                 int_to_scsilun(fxio->u.tmf.lun, &llun);
3222                 host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3223                     sizeof(struct scsi_lun));
3224         }
3225
3226         memcpy((void *)ptm_iocb, &tm_iocb,
3227             sizeof(struct tsk_mgmt_entry_fx00));
3228         wmb();
3229 }
3230
3231 void
3232 qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3233 {
3234         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3235         scsi_qla_host_t *vha = sp->vha;
3236         struct req_que *req = vha->req;
3237         struct abort_iocb_entry_fx00 abt_iocb;
3238
3239         memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3240         abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3241         abt_iocb.entry_count = 1;
3242         abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3243         abt_iocb.abort_handle =
3244             cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3245         abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3246         abt_iocb.req_que_no = cpu_to_le16(req->id);
3247
3248         memcpy((void *)pabt_iocb, &abt_iocb,
3249             sizeof(struct abort_iocb_entry_fx00));
3250         wmb();
3251 }
3252
3253 void
3254 qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3255 {
3256         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3257         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3258         struct bsg_job *bsg_job;
3259         struct fc_bsg_request *bsg_request;
3260         struct fxdisc_entry_fx00 fx_iocb;
3261         uint8_t entry_cnt = 1;
3262
3263         memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3264         fx_iocb.entry_type = FX00_IOCB_TYPE;
3265         fx_iocb.handle = cpu_to_le32(sp->handle);
3266         fx_iocb.entry_count = entry_cnt;
3267
3268         if (sp->type == SRB_FXIOCB_DCMD) {
3269                 fx_iocb.func_num =
3270                     sp->u.iocb_cmd.u.fxiocb.req_func_type;
3271                 fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
3272                 fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
3273                 fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
3274                 fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
3275                 fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3276
3277                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3278                         fx_iocb.req_dsdcnt = cpu_to_le16(1);
3279                         fx_iocb.req_xfrcnt =
3280                             cpu_to_le16(fxio->u.fxiocb.req_len);
3281                         put_unaligned_le64(fxio->u.fxiocb.req_dma_handle,
3282                                            &fx_iocb.dseg_rq.address);
3283                         fx_iocb.dseg_rq.length =
3284                             cpu_to_le32(fxio->u.fxiocb.req_len);
3285                 }
3286
3287                 if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3288                         fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3289                         fx_iocb.rsp_xfrcnt =
3290                             cpu_to_le16(fxio->u.fxiocb.rsp_len);
3291                         put_unaligned_le64(fxio->u.fxiocb.rsp_dma_handle,
3292                                            &fx_iocb.dseg_rsp.address);
3293                         fx_iocb.dseg_rsp.length =
3294                             cpu_to_le32(fxio->u.fxiocb.rsp_len);
3295                 }
3296
3297                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3298                         fx_iocb.dataword = fxio->u.fxiocb.req_data;
3299                 }
3300                 fx_iocb.flags = fxio->u.fxiocb.flags;
3301         } else {
3302                 struct scatterlist *sg;
3303
3304                 bsg_job = sp->u.bsg_job;
3305                 bsg_request = bsg_job->request;
3306                 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3307                         &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3308
3309                 fx_iocb.func_num = piocb_rqst->func_type;
3310                 fx_iocb.adapid = piocb_rqst->adapid;
3311                 fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3312                 fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3313                 fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3314                 fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3315                 fx_iocb.dataword = piocb_rqst->dataword;
3316                 fx_iocb.req_xfrcnt = piocb_rqst->req_len;
3317                 fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3318
3319                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3320                         int avail_dsds, tot_dsds;
3321                         cont_a64_entry_t lcont_pkt;
3322                         cont_a64_entry_t *cont_pkt = NULL;
3323                         struct dsd64 *cur_dsd;
3324                         int index = 0, cont = 0;
3325
3326                         fx_iocb.req_dsdcnt =
3327                             cpu_to_le16(bsg_job->request_payload.sg_cnt);
3328                         tot_dsds =
3329                             bsg_job->request_payload.sg_cnt;
3330                         cur_dsd = &fx_iocb.dseg_rq;
3331                         avail_dsds = 1;
3332                         for_each_sg(bsg_job->request_payload.sg_list, sg,
3333                             tot_dsds, index) {
3334                                 /* Allocate additional continuation packets? */
3335                                 if (avail_dsds == 0) {
3336                                         /*
3337                                          * Five DSDs are available in the Cont.
3338                                          * Type 1 IOCB.
3339                                          */
3340                                         memset(&lcont_pkt, 0,
3341                                             REQUEST_ENTRY_SIZE);
3342                                         cont_pkt =
3343                                             qlafx00_prep_cont_type1_iocb(
3344                                                 sp->vha->req, &lcont_pkt);
3345                                         cur_dsd = lcont_pkt.dsd;
3346                                         avail_dsds = 5;
3347                                         cont = 1;
3348                                         entry_cnt++;
3349                                 }
3350
3351                                 append_dsd64(&cur_dsd, sg);
3352                                 avail_dsds--;
3353
3354                                 if (avail_dsds == 0 && cont == 1) {
3355                                         cont = 0;
3356                                         memcpy_toio(
3357                                             (void __iomem *)cont_pkt,
3358                                             &lcont_pkt, REQUEST_ENTRY_SIZE);
3359                                         ql_dump_buffer(
3360                                             ql_dbg_user + ql_dbg_verbose,
3361                                             sp->vha, 0x3042,
3362                                             (uint8_t *)&lcont_pkt,
3363                                              REQUEST_ENTRY_SIZE);
3364                                 }
3365                         }
3366                         if (avail_dsds != 0 && cont == 1) {
3367                                 memcpy_toio((void __iomem *)cont_pkt,
3368                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3369                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3370                                     sp->vha, 0x3043,
3371                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3372                         }
3373                 }
3374
3375                 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3376                         int avail_dsds, tot_dsds;
3377                         cont_a64_entry_t lcont_pkt;
3378                         cont_a64_entry_t *cont_pkt = NULL;
3379                         struct dsd64 *cur_dsd;
3380                         int index = 0, cont = 0;
3381
3382                         fx_iocb.rsp_dsdcnt =
3383                            cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3384                         tot_dsds = bsg_job->reply_payload.sg_cnt;
3385                         cur_dsd = &fx_iocb.dseg_rsp;
3386                         avail_dsds = 1;
3387
3388                         for_each_sg(bsg_job->reply_payload.sg_list, sg,
3389                             tot_dsds, index) {
3390                                 /* Allocate additional continuation packets? */
3391                                 if (avail_dsds == 0) {
3392                                         /*
3393                                         * Five DSDs are available in the Cont.
3394                                         * Type 1 IOCB.
3395                                         */
3396                                         memset(&lcont_pkt, 0,
3397                                             REQUEST_ENTRY_SIZE);
3398                                         cont_pkt =
3399                                             qlafx00_prep_cont_type1_iocb(
3400                                                 sp->vha->req, &lcont_pkt);
3401                                         cur_dsd = lcont_pkt.dsd;
3402                                         avail_dsds = 5;
3403                                         cont = 1;
3404                                         entry_cnt++;
3405                                 }
3406
3407                                 append_dsd64(&cur_dsd, sg);
3408                                 avail_dsds--;
3409
3410                                 if (avail_dsds == 0 && cont == 1) {
3411                                         cont = 0;
3412                                         memcpy_toio((void __iomem *)cont_pkt,
3413                                             &lcont_pkt,
3414                                             REQUEST_ENTRY_SIZE);
3415                                         ql_dump_buffer(
3416                                             ql_dbg_user + ql_dbg_verbose,
3417                                             sp->vha, 0x3045,
3418                                             (uint8_t *)&lcont_pkt,
3419                                             REQUEST_ENTRY_SIZE);
3420                                 }
3421                         }
3422                         if (avail_dsds != 0 && cont == 1) {
3423                                 memcpy_toio((void __iomem *)cont_pkt,
3424                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3425                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3426                                     sp->vha, 0x3046,
3427                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3428                         }
3429                 }
3430
3431                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3432                         fx_iocb.dataword = piocb_rqst->dataword;
3433                 fx_iocb.flags = piocb_rqst->flags;
3434                 fx_iocb.entry_count = entry_cnt;
3435         }
3436
3437         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3438             sp->vha, 0x3047, &fx_iocb, sizeof(fx_iocb));
3439
3440         memcpy_toio((void __iomem *)pfxiocb, &fx_iocb, sizeof(fx_iocb));
3441         wmb();
3442 }