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 mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
 277                     "mb[3]=%x, cmd=%x ****.\n",
 278                     mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], 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  * @ha: 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  * @ha: 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  * @ha: HA context
 629  *
 630  * Returns 0 on success.
 631  */
 632 void
 633 qlafx00_soft_reset(scsi_qla_host_t *vha)
 634 {
 635         struct qla_hw_data *ha = vha->hw;
 636
 637         if (unlikely(pci_channel_offline(ha->pdev) &&
 638             ha->flags.pci_channel_io_perm_failure))
 639                 return;
 640
 641         ha->isp_ops->disable_intrs(ha);
 642         qlafx00_soc_cpu_reset(vha);
 643 }
 644
 645 /**
 646  * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 647  * @ha: HA context
 648  *
 649  * Returns 0 on success.
 650  */
 651 int
 652 qlafx00_chip_diag(scsi_qla_host_t *vha)
 653 {
 654         int rval = 0;
 655         struct qla_hw_data *ha = vha->hw;
 656         struct req_que *req = ha->req_q_map[0];
 657
 658         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 659
 660         rval = qlafx00_mbx_reg_test(vha);
 661         if (rval) {
 662                 ql_log(ql_log_warn, vha, 0x1165,
 663                     "Failed mailbox send register test\n");
 664         } else {
 665                 /* Flag a successful rval */
 666                 rval = QLA_SUCCESS;
 667         }
 668         return rval;
 669 }
 670
 671 void
 672 qlafx00_config_rings(struct scsi_qla_host *vha)
 673 {
 674         struct qla_hw_data *ha = vha->hw;
 675         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 676
 677         WRT_REG_DWORD(&reg->req_q_in, 0);
 678         WRT_REG_DWORD(&reg->req_q_out, 0);
 679
 680         WRT_REG_DWORD(&reg->rsp_q_in, 0);
 681         WRT_REG_DWORD(&reg->rsp_q_out, 0);
 682
 683         /* PCI posting */
 684         RD_REG_DWORD(&reg->rsp_q_out);
 685 }
 686
 687 char *
 688 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 689 {
 690         struct qla_hw_data *ha = vha->hw;
 691
 692         if (pci_is_pcie(ha->pdev)) {
 693                 strcpy(str, "PCIe iSA");
 694                 return str;
 695         }
 696         return str;
 697 }
 698
 699 char *
 700 qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
 701 {
 702         struct qla_hw_data *ha = vha->hw;
 703
 704         snprintf(str, size, "%s", ha->mr.fw_version);
 705         return str;
 706 }
 707
 708 void
 709 qlafx00_enable_intrs(struct qla_hw_data *ha)
 710 {
 711         unsigned long flags = 0;
 712
 713         spin_lock_irqsave(&ha->hardware_lock, flags);
 714         ha->interrupts_on = 1;
 715         QLAFX00_ENABLE_ICNTRL_REG(ha);
 716         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 717 }
 718
 719 void
 720 qlafx00_disable_intrs(struct qla_hw_data *ha)
 721 {
 722         unsigned long flags = 0;
 723
 724         spin_lock_irqsave(&ha->hardware_lock, flags);
 725         ha->interrupts_on = 0;
 726         QLAFX00_DISABLE_ICNTRL_REG(ha);
 727         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 728 }
 729
 730 int
 731 qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
 732 {
 733         return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 734 }
 735
 736 int
 737 qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 738 {
 739         return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 740 }
 741
 742 int
 743 qlafx00_loop_reset(scsi_qla_host_t *vha)
 744 {
 745         int ret;
 746         struct fc_port *fcport;
 747         struct qla_hw_data *ha = vha->hw;
 748
 749         if (ql2xtargetreset) {
 750                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
 751                         if (fcport->port_type != FCT_TARGET)
 752                                 continue;
 753
 754                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
 755                         if (ret != QLA_SUCCESS) {
 756                                 ql_dbg(ql_dbg_taskm, vha, 0x803d,
 757                                     "Bus Reset failed: Reset=%d "
 758                                     "d_id=%x.\n", ret, fcport->d_id.b24);
 759                         }
 760                 }
 761         }
 762         return QLA_SUCCESS;
 763 }
 764
 765 int
 766 qlafx00_iospace_config(struct qla_hw_data *ha)
 767 {
 768         if (pci_request_selected_regions(ha->pdev, ha->bars,
 769             QLA2XXX_DRIVER_NAME)) {
 770                 ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 771                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 772                     pci_name(ha->pdev));
 773                 goto iospace_error_exit;
 774         }
 775
 776         /* Use MMIO operations for all accesses. */
 777         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 778                 ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 779                     "Invalid pci I/O region size (%s).\n",
 780                     pci_name(ha->pdev));
 781                 goto iospace_error_exit;
 782         }
 783         if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 784                 ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 785                     "Invalid PCI mem BAR0 region size (%s), aborting\n",
 786                         pci_name(ha->pdev));
 787                 goto iospace_error_exit;
 788         }
 789
 790         ha->cregbase =
 791             ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 792         if (!ha->cregbase) {
 793                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 794                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 795                 goto iospace_error_exit;
 796         }
 797
 798         if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 799                 ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 800                     "region #2 not an MMIO resource (%s), aborting\n",
 801                     pci_name(ha->pdev));
 802                 goto iospace_error_exit;
 803         }
 804         if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 805                 ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 806                     "Invalid PCI mem BAR2 region size (%s), aborting\n",
 807                         pci_name(ha->pdev));
 808                 goto iospace_error_exit;
 809         }
 810
 811         ha->iobase =
 812             ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 813         if (!ha->iobase) {
 814                 ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 815                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 816                 goto iospace_error_exit;
 817         }
 818
 819         /* Determine queue resources */
 820         ha->max_req_queues = ha->max_rsp_queues = 1;
 821
 822         ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 823             "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 824             ha->bars, ha->cregbase, ha->iobase);
 825
 826         return 0;
 827
 828 iospace_error_exit:
 829         return -ENOMEM;
 830 }
 831
 832 static void
 833 qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 834 {
 835         struct qla_hw_data *ha = vha->hw;
 836         struct req_que *req = ha->req_q_map[0];
 837         struct rsp_que *rsp = ha->rsp_q_map[0];
 838
 839         req->length_fx00 = req->length;
 840         req->ring_fx00 = req->ring;
 841         req->dma_fx00 = req->dma;
 842
 843         rsp->length_fx00 = rsp->length;
 844         rsp->ring_fx00 = rsp->ring;
 845         rsp->dma_fx00 = rsp->dma;
 846
 847         ql_dbg(ql_dbg_init, vha, 0x012d,
 848             "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 849             "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 850             req->length_fx00, (u64)req->dma_fx00);
 851
 852         ql_dbg(ql_dbg_init, vha, 0x012e,
 853             "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 854             "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 855             rsp->length_fx00, (u64)rsp->dma_fx00);
 856 }
 857
 858 static int
 859 qlafx00_config_queues(struct scsi_qla_host *vha)
 860 {
 861         struct qla_hw_data *ha = vha->hw;
 862         struct req_que *req = ha->req_q_map[0];
 863         struct rsp_que *rsp = ha->rsp_q_map[0];
 864         dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 865
 866         req->length = ha->req_que_len;
 867         req->ring = (void __force *)ha->iobase + ha->req_que_off;
 868         req->dma = bar2_hdl + ha->req_que_off;
 869         if ((!req->ring) || (req->length == 0)) {
 870                 ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 871                     "Unable to allocate memory for req_ring\n");
 872                 return QLA_FUNCTION_FAILED;
 873         }
 874
 875         ql_dbg(ql_dbg_init, vha, 0x0130,
 876             "req: %p req_ring pointer %p req len 0x%x "
 877             "req off 0x%x\n, req->dma: 0x%llx",
 878             req, req->ring, req->length,
 879             ha->req_que_off, (u64)req->dma);
 880
 881         rsp->length = ha->rsp_que_len;
 882         rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
 883         rsp->dma = bar2_hdl + ha->rsp_que_off;
 884         if ((!rsp->ring) || (rsp->length == 0)) {
 885                 ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 886                     "Unable to allocate memory for rsp_ring\n");
 887                 return QLA_FUNCTION_FAILED;
 888         }
 889
 890         ql_dbg(ql_dbg_init, vha, 0x0132,
 891             "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 892             "rsp off 0x%x, rsp->dma: 0x%llx\n",
 893             rsp, rsp->ring, rsp->length,
 894             ha->rsp_que_off, (u64)rsp->dma);
 895
 896         return QLA_SUCCESS;
 897 }
 898
 899 static int
 900 qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 901 {
 902         int rval = 0;
 903         unsigned long wtime;
 904         uint16_t wait_time;     /* Wait time */
 905         struct qla_hw_data *ha = vha->hw;
 906         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 907         uint32_t aenmbx, aenmbx7 = 0;
 908         uint32_t pseudo_aen;
 909         uint32_t state[5];
 910         bool done = false;
 911
 912         /* 30 seconds wait - Adjust if required */
 913         wait_time = 30;
 914
 915         pseudo_aen = RD_REG_DWORD(&reg->pseudoaen);
 916         if (pseudo_aen == 1) {
 917                 aenmbx7 = RD_REG_DWORD(&reg->initval7);
 918                 ha->mbx_intr_code = MSW(aenmbx7);
 919                 ha->rqstq_intr_code = LSW(aenmbx7);
 920                 rval = qlafx00_driver_shutdown(vha, 10);
 921                 if (rval != QLA_SUCCESS)
 922                         qlafx00_soft_reset(vha);
 923         }
 924
 925         /* wait time before firmware ready */
 926         wtime = jiffies + (wait_time * HZ);
 927         do {
 928                 aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 929                 barrier();
 930                 ql_dbg(ql_dbg_mbx, vha, 0x0133,
 931                     "aenmbx: 0x%x\n", aenmbx);
 932
 933                 switch (aenmbx) {
 934                 case MBA_FW_NOT_STARTED:
 935                 case MBA_FW_STARTING:
 936                         break;
 937
 938                 case MBA_SYSTEM_ERR:
 939                 case MBA_REQ_TRANSFER_ERR:
 940                 case MBA_RSP_TRANSFER_ERR:
 941                 case MBA_FW_INIT_FAILURE:
 942                         qlafx00_soft_reset(vha);
 943                         break;
 944
 945                 case MBA_FW_RESTART_CMPLT:
 946                         /* Set the mbx and rqstq intr code */
 947                         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 948                         ha->mbx_intr_code = MSW(aenmbx7);
 949                         ha->rqstq_intr_code = LSW(aenmbx7);
 950                         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 951                         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 952                         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 953                         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 954                         WRT_REG_DWORD(&reg->aenmailbox0, 0);
 955                         RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 956                         ql_dbg(ql_dbg_init, vha, 0x0134,
 957                             "f/w returned mbx_intr_code: 0x%x, "
 958                             "rqstq_intr_code: 0x%x\n",
 959                             ha->mbx_intr_code, ha->rqstq_intr_code);
 960                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 961                         rval = QLA_SUCCESS;
 962                         done = true;
 963                         break;
 964
 965                 default:
 966                         if ((aenmbx & 0xFF00) == MBA_FW_INIT_INPROGRESS)
 967                                 break;
 968
 969                         /* If fw is apparently not ready. In order to continue,
 970                          * we might need to issue Mbox cmd, but the problem is
 971                          * that the DoorBell vector values that come with the
 972                          * 8060 AEN are most likely gone by now (and thus no
 973                          * bell would be rung on the fw side when mbox cmd is
 974                          * issued). We have to therefore grab the 8060 AEN
 975                          * shadow regs (filled in by FW when the last 8060
 976                          * AEN was being posted).
 977                          * Do the following to determine what is needed in
 978                          * order to get the FW ready:
 979                          * 1. reload the 8060 AEN values from the shadow regs
 980                          * 2. clear int status to get rid of possible pending
 981                          *    interrupts
 982                          * 3. issue Get FW State Mbox cmd to determine fw state
 983                          * Set the mbx and rqstq intr code from Shadow Regs
 984                          */
 985                         aenmbx7 = RD_REG_DWORD(&reg->initval7);
 986                         ha->mbx_intr_code = MSW(aenmbx7);
 987                         ha->rqstq_intr_code = LSW(aenmbx7);
 988                         ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 989                         ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 990                         ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 991                         ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 992                         ql_dbg(ql_dbg_init, vha, 0x0135,
 993                             "f/w returned mbx_intr_code: 0x%x, "
 994                             "rqstq_intr_code: 0x%x\n",
 995                             ha->mbx_intr_code, ha->rqstq_intr_code);
 996                         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 997
 998                         /* Get the FW state */
 999                         rval = qlafx00_get_firmware_state(vha, state);
1000                         if (rval != QLA_SUCCESS) {
1001                                 /* Retry if timer has not expired */
1002                                 break;
1003                         }
1004
1005                         if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1006                                 /* Firmware is waiting to be
1007                                  * initialized by driver
1008                                  */
1009                                 rval = QLA_SUCCESS;
1010                                 done = true;
1011                                 break;
1012                         }
1013
1014                         /* Issue driver shutdown and wait until f/w recovers.
1015                          * Driver should continue to poll until 8060 AEN is
1016                          * received indicating firmware recovery.
1017                          */
1018                         ql_dbg(ql_dbg_init, vha, 0x0136,
1019                             "Sending Driver shutdown fw_state 0x%x\n",
1020                             state[0]);
1021
1022                         rval = qlafx00_driver_shutdown(vha, 10);
1023                         if (rval != QLA_SUCCESS) {
1024                                 rval = QLA_FUNCTION_FAILED;
1025                                 break;
1026                         }
1027                         msleep(500);
1028
1029                         wtime = jiffies + (wait_time * HZ);
1030                         break;
1031                 }
1032
1033                 if (!done) {
1034                         if (time_after_eq(jiffies, wtime)) {
1035                                 ql_dbg(ql_dbg_init, vha, 0x0137,
1036                                     "Init f/w failed: aen[7]: 0x%x\n",
1037                                     RD_REG_DWORD(&reg->aenmailbox7));
1038                                 rval = QLA_FUNCTION_FAILED;
1039                                 done = true;
1040                                 break;
1041                         }
1042                         /* Delay for a while */
1043                         msleep(500);
1044                 }
1045         } while (!done);
1046
1047         if (rval)
1048                 ql_dbg(ql_dbg_init, vha, 0x0138,
1049                     "%s **** FAILED ****.\n", __func__);
1050         else
1051                 ql_dbg(ql_dbg_init, vha, 0x0139,
1052                     "%s **** SUCCESS ****.\n", __func__);
1053
1054         return rval;
1055 }
1056
1057 /*
1058  * qlafx00_fw_ready() - Waits for firmware ready.
1059  * @ha: HA context
1060  *
1061  * Returns 0 on success.
1062  */
1063 int
1064 qlafx00_fw_ready(scsi_qla_host_t *vha)
1065 {
1066         int             rval;
1067         unsigned long   wtime;
1068         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1069         uint32_t        state[5];
1070
1071         rval = QLA_SUCCESS;
1072
1073         wait_time = 10;
1074
1075         /* wait time before firmware ready */
1076         wtime = jiffies + (wait_time * HZ);
1077
1078         /* Wait for ISP to finish init */
1079         if (!vha->flags.init_done)
1080                 ql_dbg(ql_dbg_init, vha, 0x013a,
1081                     "Waiting for init to complete...\n");
1082
1083         do {
1084                 rval = qlafx00_get_firmware_state(vha, state);
1085
1086                 if (rval == QLA_SUCCESS) {
1087                         if (state[0] == FSTATE_FX00_INITIALIZED) {
1088                                 ql_dbg(ql_dbg_init, vha, 0x013b,
1089                                     "fw_state=%x\n", state[0]);
1090                                 rval = QLA_SUCCESS;
1091                                         break;
1092                         }
1093                 }
1094                 rval = QLA_FUNCTION_FAILED;
1095
1096                 if (time_after_eq(jiffies, wtime))
1097                         break;
1098
1099                 /* Delay for a while */
1100                 msleep(500);
1101
1102                 ql_dbg(ql_dbg_init, vha, 0x013c,
1103                     "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1104         } while (1);
1105
1106
1107         if (rval)
1108                 ql_dbg(ql_dbg_init, vha, 0x013d,
1109                     "Firmware ready **** FAILED ****.\n");
1110         else
1111                 ql_dbg(ql_dbg_init, vha, 0x013e,
1112                     "Firmware ready **** SUCCESS ****.\n");
1113
1114         return rval;
1115 }
1116
1117 static int
1118 qlafx00_find_all_targets(scsi_qla_host_t *vha,
1119         struct list_head *new_fcports)
1120 {
1121         int             rval;
1122         uint16_t        tgt_id;
1123         fc_port_t       *fcport, *new_fcport;
1124         int             found;
1125         struct qla_hw_data *ha = vha->hw;
1126
1127         rval = QLA_SUCCESS;
1128
1129         if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1130                 return QLA_FUNCTION_FAILED;
1131
1132         if ((atomic_read(&vha->loop_down_timer) ||
1133              STATE_TRANSITION(vha))) {
1134                 atomic_set(&vha->loop_down_timer, 0);
1135                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1136                 return QLA_FUNCTION_FAILED;
1137         }
1138
1139         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1140             "Listing Target bit map...\n");
1141         ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
1142             0x2089, (uint8_t *)ha->gid_list, 32);
1143
1144         /* Allocate temporary rmtport for any new rmtports discovered. */
1145         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1146         if (new_fcport == NULL)
1147                 return QLA_MEMORY_ALLOC_FAILED;
1148
1149         for_each_set_bit(tgt_id, (void *)ha->gid_list,
1150             QLAFX00_TGT_NODE_LIST_SIZE) {
1151
1152                 /* Send get target node info */
1153                 new_fcport->tgt_id = tgt_id;
1154                 rval = qlafx00_fx_disc(vha, new_fcport,
1155                     FXDISC_GET_TGT_NODE_INFO);
1156                 if (rval != QLA_SUCCESS) {
1157                         ql_log(ql_log_warn, vha, 0x208a,
1158                             "Target info scan failed -- assuming zero-entry "
1159                             "result...\n");
1160                         continue;
1161                 }
1162
1163                 /* Locate matching device in database. */
1164                 found = 0;
1165                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1166                         if (memcmp(new_fcport->port_name,
1167                             fcport->port_name, WWN_SIZE))
1168                                 continue;
1169
1170                         found++;
1171
1172                         /*
1173                          * If tgt_id is same and state FCS_ONLINE, nothing
1174                          * changed.
1175                          */
1176                         if (fcport->tgt_id == new_fcport->tgt_id &&
1177                             atomic_read(&fcport->state) == FCS_ONLINE)
1178                                 break;
1179
1180                         /*
1181                          * Tgt ID changed or device was marked to be updated.
1182                          */
1183                         ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1184                             "TGT-ID Change(%s): Present tgt id: "
1185                             "0x%x state: 0x%x "
1186                             "wwnn = %llx wwpn = %llx.\n",
1187                             __func__, fcport->tgt_id,
1188                             atomic_read(&fcport->state),
1189                             (unsigned long long)wwn_to_u64(fcport->node_name),
1190                             (unsigned long long)wwn_to_u64(fcport->port_name));
1191
1192                         ql_log(ql_log_info, vha, 0x208c,
1193                             "TGT-ID Announce(%s): Discovered tgt "
1194                             "id 0x%x wwnn = %llx "
1195                             "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1196                             (unsigned long long)
1197                             wwn_to_u64(new_fcport->node_name),
1198                             (unsigned long long)
1199                             wwn_to_u64(new_fcport->port_name));
1200
1201                         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1202                                 fcport->old_tgt_id = fcport->tgt_id;
1203                                 fcport->tgt_id = new_fcport->tgt_id;
1204                                 ql_log(ql_log_info, vha, 0x208d,
1205                                    "TGT-ID: New fcport Added: %p\n", fcport);
1206                                 qla2x00_update_fcport(vha, fcport);
1207                         } else {
1208                                 ql_log(ql_log_info, vha, 0x208e,
1209                                     " Existing TGT-ID %x did not get "
1210                                     " offline event from firmware.\n",
1211                                     fcport->old_tgt_id);
1212                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1213                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1214                                 kfree(new_fcport);
1215                                 return rval;
1216                         }
1217                         break;
1218                 }
1219
1220                 if (found)
1221                         continue;
1222
1223                 /* If device was not in our fcports list, then add it. */
1224                 list_add_tail(&new_fcport->list, new_fcports);
1225
1226                 /* Allocate a new replacement fcport. */
1227                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1228                 if (new_fcport == NULL)
1229                         return QLA_MEMORY_ALLOC_FAILED;
1230         }
1231
1232         kfree(new_fcport);
1233         return rval;
1234 }
1235
1236 /*
1237  * qlafx00_configure_all_targets
1238  *      Setup target devices with node ID's.
1239  *
1240  * Input:
1241  *      ha = adapter block pointer.
1242  *
1243  * Returns:
1244  *      0 = success.
1245  *      BIT_0 = error
1246  */
1247 static int
1248 qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1249 {
1250         int rval;
1251         fc_port_t *fcport, *rmptemp;
1252         LIST_HEAD(new_fcports);
1253
1254         rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1255             FXDISC_GET_TGT_NODE_LIST);
1256         if (rval != QLA_SUCCESS) {
1257                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1258                 return rval;
1259         }
1260
1261         rval = qlafx00_find_all_targets(vha, &new_fcports);
1262         if (rval != QLA_SUCCESS) {
1263                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1264                 return rval;
1265         }
1266
1267         /*
1268          * Delete all previous devices marked lost.
1269          */
1270         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1271                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1272                         break;
1273
1274                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1275                         if (fcport->port_type != FCT_INITIATOR)
1276                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1277                 }
1278         }
1279
1280         /*
1281          * Add the new devices to our devices list.
1282          */
1283         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1284                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1285                         break;
1286
1287                 qla2x00_update_fcport(vha, fcport);
1288                 list_move_tail(&fcport->list, &vha->vp_fcports);
1289                 ql_log(ql_log_info, vha, 0x208f,
1290                     "Attach new target id 0x%x wwnn = %llx "
1291                     "wwpn = %llx.\n",
1292                     fcport->tgt_id,
1293                     (unsigned long long)wwn_to_u64(fcport->node_name),
1294                     (unsigned long long)wwn_to_u64(fcport->port_name));
1295         }
1296
1297         /* Free all new device structures not processed. */
1298         list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1299                 list_del(&fcport->list);
1300                 kfree(fcport);
1301         }
1302
1303         return rval;
1304 }
1305
1306 /*
1307  * qlafx00_configure_devices
1308  *      Updates Fibre Channel Device Database with what is actually on loop.
1309  *
1310  * Input:
1311  *      ha                = adapter block pointer.
1312  *
1313  * Returns:
1314  *      0 = success.
1315  *      1 = error.
1316  *      2 = database was full and device was not configured.
1317  */
1318 int
1319 qlafx00_configure_devices(scsi_qla_host_t *vha)
1320 {
1321         int  rval;
1322         unsigned long flags;
1323         rval = QLA_SUCCESS;
1324
1325         flags = vha->dpc_flags;
1326
1327         ql_dbg(ql_dbg_disc, vha, 0x2090,
1328             "Configure devices -- dpc flags =0x%lx\n", flags);
1329
1330         rval = qlafx00_configure_all_targets(vha);
1331
1332         if (rval == QLA_SUCCESS) {
1333                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1334                         rval = QLA_FUNCTION_FAILED;
1335                 } else {
1336                         atomic_set(&vha->loop_state, LOOP_READY);
1337                         ql_log(ql_log_info, vha, 0x2091,
1338                             "Device Ready\n");
1339                 }
1340         }
1341
1342         if (rval) {
1343                 ql_dbg(ql_dbg_disc, vha, 0x2092,
1344                     "%s *** FAILED ***.\n", __func__);
1345         } else {
1346                 ql_dbg(ql_dbg_disc, vha, 0x2093,
1347                     "%s: exiting normally.\n", __func__);
1348         }
1349         return rval;
1350 }
1351
1352 static void
1353 qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
1354 {
1355         struct qla_hw_data *ha = vha->hw;
1356         fc_port_t *fcport;
1357
1358         vha->flags.online = 0;
1359         ha->mr.fw_hbt_en = 0;
1360
1361         if (!critemp) {
1362                 ha->flags.chip_reset_done = 0;
1363                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1364                 vha->qla_stats.total_isp_aborts++;
1365                 ql_log(ql_log_info, vha, 0x013f,
1366                     "Performing ISP error recovery - ha = %p.\n", ha);
1367                 ha->isp_ops->reset_chip(vha);
1368         }
1369
1370         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1371                 atomic_set(&vha->loop_state, LOOP_DOWN);
1372                 atomic_set(&vha->loop_down_timer,
1373                     QLAFX00_LOOP_DOWN_TIME);
1374         } else {
1375                 if (!atomic_read(&vha->loop_down_timer))
1376                         atomic_set(&vha->loop_down_timer,
1377                             QLAFX00_LOOP_DOWN_TIME);
1378         }
1379
1380         /* Clear all async request states across all VPs. */
1381         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1382                 fcport->flags = 0;
1383                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1384                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1385         }
1386
1387         if (!ha->flags.eeh_busy) {
1388                 if (critemp) {
1389                         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
1390                 } else {
1391                         /* Requeue all commands in outstanding command list. */
1392                         qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1393                 }
1394         }
1395
1396         qla2x00_free_irqs(vha);
1397         if (critemp)
1398                 set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
1399         else
1400                 set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1401
1402         /* Clear the Interrupts */
1403         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1404
1405         ql_log(ql_log_info, vha, 0x0140,
1406             "%s Done done - ha=%p.\n", __func__, ha);
1407 }
1408
1409 /**
1410  * qlafx00_init_response_q_entries() - Initializes response queue entries.
1411  * @ha: HA context
1412  *
1413  * Beginning of request ring has initialization control block already built
1414  * by nvram config routine.
1415  *
1416  * Returns 0 on success.
1417  */
1418 void
1419 qlafx00_init_response_q_entries(struct rsp_que *rsp)
1420 {
1421         uint16_t cnt;
1422         response_t *pkt;
1423
1424         rsp->ring_ptr = rsp->ring;
1425         rsp->ring_index    = 0;
1426         rsp->status_srb = NULL;
1427         pkt = rsp->ring_ptr;
1428         for (cnt = 0; cnt < rsp->length; cnt++) {
1429                 pkt->signature = RESPONSE_PROCESSED;
1430                 WRT_REG_DWORD((void __force __iomem *)&pkt->signature,
1431                     RESPONSE_PROCESSED);
1432                 pkt++;
1433         }
1434 }
1435
1436 int
1437 qlafx00_rescan_isp(scsi_qla_host_t *vha)
1438 {
1439         uint32_t status = QLA_FUNCTION_FAILED;
1440         struct qla_hw_data *ha = vha->hw;
1441         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1442         uint32_t aenmbx7;
1443
1444         qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1445
1446         aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1447         ha->mbx_intr_code = MSW(aenmbx7);
1448         ha->rqstq_intr_code = LSW(aenmbx7);
1449         ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1450         ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1451         ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1452         ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1453
1454         ql_dbg(ql_dbg_disc, vha, 0x2094,
1455             "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1456             " Req que offset 0x%x Rsp que offset 0x%x\n",
1457             ha->mbx_intr_code, ha->rqstq_intr_code,
1458             ha->req_que_off, ha->rsp_que_len);
1459
1460         /* Clear the Interrupts */
1461         QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1462
1463         status = qla2x00_init_rings(vha);
1464         if (!status) {
1465                 vha->flags.online = 1;
1466
1467                 /* if no cable then assume it's good */
1468                 if ((vha->device_flags & DFLG_NO_CABLE))
1469                         status = 0;
1470                 /* Register system information */
1471                 if (qlafx00_fx_disc(vha,
1472                     &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1473                         ql_dbg(ql_dbg_disc, vha, 0x2095,
1474                             "failed to register host info\n");
1475         }
1476         scsi_unblock_requests(vha->host);
1477         return status;
1478 }
1479
1480 void
1481 qlafx00_timer_routine(scsi_qla_host_t *vha)
1482 {
1483         struct qla_hw_data *ha = vha->hw;
1484         uint32_t fw_heart_beat;
1485         uint32_t aenmbx0;
1486         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1487         uint32_t tempc;
1488
1489         /* Check firmware health */
1490         if (ha->mr.fw_hbt_cnt)
1491                 ha->mr.fw_hbt_cnt--;
1492         else {
1493                 if ((!ha->flags.mr_reset_hdlr_active) &&
1494                     (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1495                     (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1496                     (ha->mr.fw_hbt_en)) {
1497                         fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1498                         if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1499                                 ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1500                                 ha->mr.fw_hbt_miss_cnt = 0;
1501                         } else {
1502                                 ha->mr.fw_hbt_miss_cnt++;
1503                                 if (ha->mr.fw_hbt_miss_cnt ==
1504                                     QLAFX00_HEARTBEAT_MISS_CNT) {
1505                                         set_bit(ISP_ABORT_NEEDED,
1506                                             &vha->dpc_flags);
1507                                         qla2xxx_wake_dpc(vha);
1508                                         ha->mr.fw_hbt_miss_cnt = 0;
1509                                 }
1510                         }
1511                 }
1512                 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1513         }
1514
1515         if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1516                 /* Reset recovery to be performed in timer routine */
1517                 aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1518                 if (ha->mr.fw_reset_timer_exp) {
1519                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1520                         qla2xxx_wake_dpc(vha);
1521                         ha->mr.fw_reset_timer_exp = 0;
1522                 } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1523                         /* Wake up DPC to rescan the targets */
1524                         set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1525                         clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1526                         qla2xxx_wake_dpc(vha);
1527                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1528                 } else if ((aenmbx0 == MBA_FW_STARTING) &&
1529                     (!ha->mr.fw_hbt_en)) {
1530                         ha->mr.fw_hbt_en = 1;
1531                 } else if (!ha->mr.fw_reset_timer_tick) {
1532                         if (aenmbx0 == ha->mr.old_aenmbx0_state)
1533                                 ha->mr.fw_reset_timer_exp = 1;
1534                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1535                 } else if (aenmbx0 == 0xFFFFFFFF) {
1536                         uint32_t data0, data1;
1537
1538                         data0 = QLAFX00_RD_REG(ha,
1539                             QLAFX00_BAR1_BASE_ADDR_REG);
1540                         data1 = QLAFX00_RD_REG(ha,
1541                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1542
1543                         data0 &= 0xffff0000;
1544                         data1 &= 0x0000ffff;
1545
1546                         QLAFX00_WR_REG(ha,
1547                             QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1548                             (data0 | data1));
1549                 } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1550                         ha->mr.fw_reset_timer_tick =
1551                             QLAFX00_MAX_RESET_INTERVAL;
1552                 } else if (aenmbx0 == MBA_FW_RESET_FCT) {
1553                         ha->mr.fw_reset_timer_tick =
1554                             QLAFX00_MAX_RESET_INTERVAL;
1555                 }
1556                 if (ha->mr.old_aenmbx0_state != aenmbx0) {
1557                         ha->mr.old_aenmbx0_state = aenmbx0;
1558                         ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1559                 }
1560                 ha->mr.fw_reset_timer_tick--;
1561         }
1562         if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
1563                 /*
1564                  * Critical temperature recovery to be
1565                  * performed in timer routine
1566                  */
1567                 if (ha->mr.fw_critemp_timer_tick == 0) {
1568                         tempc = QLAFX00_GET_TEMPERATURE(ha);
1569                         ql_dbg(ql_dbg_timer, vha, 0x6012,
1570                             "ISPFx00(%s): Critical temp timer, "
1571                             "current SOC temperature: %d\n",
1572                             __func__, tempc);
1573                         if (tempc < ha->mr.critical_temperature) {
1574                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1575                                 clear_bit(FX00_CRITEMP_RECOVERY,
1576                                     &vha->dpc_flags);
1577                                 qla2xxx_wake_dpc(vha);
1578                         }
1579                         ha->mr.fw_critemp_timer_tick =
1580                             QLAFX00_CRITEMP_INTERVAL;
1581                 } else {
1582                         ha->mr.fw_critemp_timer_tick--;
1583                 }
1584         }
1585         if (ha->mr.host_info_resend) {
1586                 /*
1587                  * Incomplete host info might be sent to firmware
1588                  * durinng system boot - info should be resend
1589                  */
1590                 if (ha->mr.hinfo_resend_timer_tick == 0) {
1591                         ha->mr.host_info_resend = false;
1592                         set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
1593                         ha->mr.hinfo_resend_timer_tick =
1594                             QLAFX00_HINFO_RESEND_INTERVAL;
1595                         qla2xxx_wake_dpc(vha);
1596                 } else {
1597                         ha->mr.hinfo_resend_timer_tick--;
1598                 }
1599         }
1600
1601 }
1602
1603 /*
1604  *  qlfx00a_reset_initialize
1605  *      Re-initialize after a iSA device reset.
1606  *
1607  * Input:
1608  *      ha  = adapter block pointer.
1609  *
1610  * Returns:
1611  *      0 = success
1612  */
1613 int
1614 qlafx00_reset_initialize(scsi_qla_host_t *vha)
1615 {
1616         struct qla_hw_data *ha = vha->hw;
1617
1618         if (vha->device_flags & DFLG_DEV_FAILED) {
1619                 ql_dbg(ql_dbg_init, vha, 0x0142,
1620                     "Device in failed state\n");
1621                 return QLA_SUCCESS;
1622         }
1623
1624         ha->flags.mr_reset_hdlr_active = 1;
1625
1626         if (vha->flags.online) {
1627                 scsi_block_requests(vha->host);
1628                 qlafx00_abort_isp_cleanup(vha, false);
1629         }
1630
1631         ql_log(ql_log_info, vha, 0x0143,
1632             "(%s): succeeded.\n", __func__);
1633         ha->flags.mr_reset_hdlr_active = 0;
1634         return QLA_SUCCESS;
1635 }
1636
1637 /*
1638  *  qlafx00_abort_isp
1639  *      Resets ISP and aborts all outstanding commands.
1640  *
1641  * Input:
1642  *      ha  = adapter block pointer.
1643  *
1644  * Returns:
1645  *      0 = success
1646  */
1647 int
1648 qlafx00_abort_isp(scsi_qla_host_t *vha)
1649 {
1650         struct qla_hw_data *ha = vha->hw;
1651
1652         if (vha->flags.online) {
1653                 if (unlikely(pci_channel_offline(ha->pdev) &&
1654                     ha->flags.pci_channel_io_perm_failure)) {
1655                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1656                         return QLA_SUCCESS;
1657                 }
1658
1659                 scsi_block_requests(vha->host);
1660                 qlafx00_abort_isp_cleanup(vha, false);
1661         } else {
1662                 scsi_block_requests(vha->host);
1663                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1664                 vha->qla_stats.total_isp_aborts++;
1665                 ha->isp_ops->reset_chip(vha);
1666                 set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1667                 /* Clear the Interrupts */
1668                 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1669         }
1670
1671         ql_log(ql_log_info, vha, 0x0145,
1672             "(%s): succeeded.\n", __func__);
1673
1674         return QLA_SUCCESS;
1675 }
1676
1677 static inline fc_port_t*
1678 qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1679 {
1680         fc_port_t       *fcport;
1681
1682         /* Check for matching device in remote port list. */
1683         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1684                 if (fcport->tgt_id == tgt_id) {
1685                         ql_dbg(ql_dbg_async, vha, 0x5072,
1686                             "Matching fcport(%p) found with TGT-ID: 0x%x "
1687                             "and Remote TGT_ID: 0x%x\n",
1688                             fcport, fcport->tgt_id, tgt_id);
1689                         return fcport;
1690                 }
1691         }
1692         return NULL;
1693 }
1694
1695 static void
1696 qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1697 {
1698         fc_port_t       *fcport;
1699
1700         ql_log(ql_log_info, vha, 0x5073,
1701             "Detach TGT-ID: 0x%x\n", tgt_id);
1702
1703         fcport = qlafx00_get_fcport(vha, tgt_id);
1704         if (!fcport)
1705                 return;
1706
1707         qla2x00_mark_device_lost(vha, fcport, 0, 0);
1708
1709         return;
1710 }
1711
1712 int
1713 qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1714 {
1715         int rval = 0;
1716         uint32_t aen_code, aen_data;
1717
1718         aen_code = FCH_EVT_VENDOR_UNIQUE;
1719         aen_data = evt->u.aenfx.evtcode;
1720
1721         switch (evt->u.aenfx.evtcode) {
1722         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1723                 if (evt->u.aenfx.mbx[1] == 0) {
1724                         if (evt->u.aenfx.mbx[2] == 1) {
1725                                 if (!vha->flags.fw_tgt_reported)
1726                                         vha->flags.fw_tgt_reported = 1;
1727                                 atomic_set(&vha->loop_down_timer, 0);
1728                                 atomic_set(&vha->loop_state, LOOP_UP);
1729                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1730                                 qla2xxx_wake_dpc(vha);
1731                         } else if (evt->u.aenfx.mbx[2] == 2) {
1732                                 qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1733                         }
1734                 } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1735                         if (evt->u.aenfx.mbx[2] == 1) {
1736                                 if (!vha->flags.fw_tgt_reported)
1737                                         vha->flags.fw_tgt_reported = 1;
1738                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1739                         } else if (evt->u.aenfx.mbx[2] == 2) {
1740                                 vha->device_flags |= DFLG_NO_CABLE;
1741                                 qla2x00_mark_all_devices_lost(vha, 1);
1742                         }
1743                 }
1744                 break;
1745         case QLAFX00_MBA_LINK_UP:
1746                 aen_code = FCH_EVT_LINKUP;
1747                 aen_data = 0;
1748                 break;
1749         case QLAFX00_MBA_LINK_DOWN:
1750                 aen_code = FCH_EVT_LINKDOWN;
1751                 aen_data = 0;
1752                 break;
1753         case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
1754                 ql_log(ql_log_info, vha, 0x5082,
1755                     "Process critical temperature event "
1756                     "aenmb[0]: %x\n",
1757                     evt->u.aenfx.evtcode);
1758                 scsi_block_requests(vha->host);
1759                 qlafx00_abort_isp_cleanup(vha, true);
1760                 scsi_unblock_requests(vha->host);
1761                 break;
1762         }
1763
1764         fc_host_post_event(vha->host, fc_get_event_number(),
1765             aen_code, aen_data);
1766
1767         return rval;
1768 }
1769
1770 static void
1771 qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1772 {
1773         u64 port_name = 0, node_name = 0;
1774
1775         port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1776         node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1777
1778         fc_host_node_name(vha->host) = node_name;
1779         fc_host_port_name(vha->host) = port_name;
1780         if (!pinfo->port_type)
1781                 vha->hw->current_topology = ISP_CFG_F;
1782         if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1783                 atomic_set(&vha->loop_state, LOOP_READY);
1784         else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1785                 atomic_set(&vha->loop_state, LOOP_DOWN);
1786         vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1787 }
1788
1789 static void
1790 qla2x00_fxdisc_iocb_timeout(void *data)
1791 {
1792         srb_t *sp = data;
1793         struct srb_iocb *lio = &sp->u.iocb_cmd;
1794
1795         complete(&lio->u.fxiocb.fxiocb_comp);
1796 }
1797
1798 static void
1799 qla2x00_fxdisc_sp_done(void *ptr, int res)
1800 {
1801         srb_t *sp = ptr;
1802         struct srb_iocb *lio = &sp->u.iocb_cmd;
1803
1804         complete(&lio->u.fxiocb.fxiocb_comp);
1805 }
1806
1807 int
1808 qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
1809 {
1810         srb_t *sp;
1811         struct srb_iocb *fdisc;
1812         int rval = QLA_FUNCTION_FAILED;
1813         struct qla_hw_data *ha = vha->hw;
1814         struct host_system_info *phost_info;
1815         struct register_host_info *preg_hsi;
1816         struct new_utsname *p_sysid = NULL;
1817
1818         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1819         if (!sp)
1820                 goto done;
1821
1822         sp->type = SRB_FXIOCB_DCMD;
1823         sp->name = "fxdisc";
1824         qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1825
1826         fdisc = &sp->u.iocb_cmd;
1827         switch (fx_type) {
1828         case FXDISC_GET_CONFIG_INFO:
1829         fdisc->u.fxiocb.flags =
1830                     SRB_FXDISC_RESP_DMA_VALID;
1831                 fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1832                 break;
1833         case FXDISC_GET_PORT_INFO:
1834                 fdisc->u.fxiocb.flags =
1835                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1836                 fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1837                 fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
1838                 break;
1839         case FXDISC_GET_TGT_NODE_INFO:
1840                 fdisc->u.fxiocb.flags =
1841                     SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1842                 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1843                 fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
1844                 break;
1845         case FXDISC_GET_TGT_NODE_LIST:
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_LIST_SIZE;
1849                 break;
1850         case FXDISC_REG_HOST_INFO:
1851                 fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1852                 fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1853                 p_sysid = utsname();
1854                 if (!p_sysid) {
1855                         ql_log(ql_log_warn, vha, 0x303c,
1856                             "Not able to get the system information\n");
1857                         goto done_free_sp;
1858                 }
1859                 break;
1860         case FXDISC_ABORT_IOCTL:
1861         default:
1862                 break;
1863         }
1864
1865         if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1866                 fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1867                     fdisc->u.fxiocb.req_len,
1868                     &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1869                 if (!fdisc->u.fxiocb.req_addr)
1870                         goto done_free_sp;
1871
1872                 if (fx_type == FXDISC_REG_HOST_INFO) {
1873                         preg_hsi = (struct register_host_info *)
1874                                 fdisc->u.fxiocb.req_addr;
1875                         phost_info = &preg_hsi->hsi;
1876                         memset(preg_hsi, 0, sizeof(struct register_host_info));
1877                         phost_info->os_type = OS_TYPE_LINUX;
1878                         strncpy(phost_info->sysname,
1879                             p_sysid->sysname, SYSNAME_LENGTH);
1880                         strncpy(phost_info->nodename,
1881                             p_sysid->nodename, NODENAME_LENGTH);
1882                         if (!strcmp(phost_info->nodename, "(none)"))
1883                                 ha->mr.host_info_resend = true;
1884                         strncpy(phost_info->release,
1885                             p_sysid->release, RELEASE_LENGTH);
1886                         strncpy(phost_info->version,
1887                             p_sysid->version, VERSION_LENGTH);
1888                         strncpy(phost_info->machine,
1889                             p_sysid->machine, MACHINE_LENGTH);
1890                         strncpy(phost_info->domainname,
1891                             p_sysid->domainname, DOMNAME_LENGTH);
1892                         strncpy(phost_info->hostdriver,
1893                             QLA2XXX_VERSION, VERSION_LENGTH);
1894                         preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
1895                         ql_dbg(ql_dbg_init, vha, 0x0149,
1896                             "ISP%04X: Host registration with firmware\n",
1897                             ha->pdev->device);
1898                         ql_dbg(ql_dbg_init, vha, 0x014a,
1899                             "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1900                             phost_info->os_type,
1901                             phost_info->sysname,
1902                             phost_info->nodename);
1903                         ql_dbg(ql_dbg_init, vha, 0x014b,
1904                             "release = '%s', version = '%s'\n",
1905                             phost_info->release,
1906                             phost_info->version);
1907                         ql_dbg(ql_dbg_init, vha, 0x014c,
1908                             "machine = '%s' "
1909                             "domainname = '%s', hostdriver = '%s'\n",
1910                             phost_info->machine,
1911                             phost_info->domainname,
1912                             phost_info->hostdriver);
1913                         ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1914                             (uint8_t *)phost_info,
1915                             sizeof(struct host_system_info));
1916                 }
1917         }
1918
1919         if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1920                 fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1921                     fdisc->u.fxiocb.rsp_len,
1922                     &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1923                 if (!fdisc->u.fxiocb.rsp_addr)
1924                         goto done_unmap_req;
1925         }
1926
1927         fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1928         fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1929         sp->done = qla2x00_fxdisc_sp_done;
1930
1931         rval = qla2x00_start_sp(sp);
1932         if (rval != QLA_SUCCESS)
1933                 goto done_unmap_dma;
1934
1935         wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1936
1937         if (fx_type == FXDISC_GET_CONFIG_INFO) {
1938                 struct config_info_data *pinfo =
1939                     (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1940                 strcpy(vha->hw->model_number, pinfo->model_num);
1941                 strcpy(vha->hw->model_desc, pinfo->model_description);
1942                 memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1943                     sizeof(vha->hw->mr.symbolic_name));
1944                 memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1945                     sizeof(vha->hw->mr.serial_num));
1946                 memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1947                     sizeof(vha->hw->mr.hw_version));
1948                 memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1949                     sizeof(vha->hw->mr.fw_version));
1950                 strim(vha->hw->mr.fw_version);
1951                 memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1952                     sizeof(vha->hw->mr.uboot_version));
1953                 memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1954                     sizeof(vha->hw->mr.fru_serial_num));
1955                 vha->hw->mr.critical_temperature =
1956                     (pinfo->nominal_temp_value) ?
1957                     pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
1958                 ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
1959                     QLAFX00_EXTENDED_IO_EN_MASK) != 0;
1960         } else if (fx_type == FXDISC_GET_PORT_INFO) {
1961                 struct port_info_data *pinfo =
1962                     (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1963                 memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1964                 memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1965                 vha->d_id.b.domain = pinfo->port_id[0];
1966                 vha->d_id.b.area = pinfo->port_id[1];
1967                 vha->d_id.b.al_pa = pinfo->port_id[2];
1968                 qlafx00_update_host_attr(vha, pinfo);
1969                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1970                     (uint8_t *)pinfo, 16);
1971         } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1972                 struct qlafx00_tgt_node_info *pinfo =
1973                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1974                 memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1975                 memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1976                 fcport->port_type = FCT_TARGET;
1977                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1978                     (uint8_t *)pinfo, 16);
1979         } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1980                 struct qlafx00_tgt_node_info *pinfo =
1981                     (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1982                 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1983                     (uint8_t *)pinfo, 16);
1984                 memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1985         } else if (fx_type == FXDISC_ABORT_IOCTL)
1986                 fdisc->u.fxiocb.result =
1987                     (fdisc->u.fxiocb.result ==
1988                         cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
1989                     cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
1990
1991         rval = le32_to_cpu(fdisc->u.fxiocb.result);
1992
1993 done_unmap_dma:
1994         if (fdisc->u.fxiocb.rsp_addr)
1995                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1996                     fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1997
1998 done_unmap_req:
1999         if (fdisc->u.fxiocb.req_addr)
2000                 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
2001                     fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
2002 done_free_sp:
2003         sp->free(sp);
2004 done:
2005         return rval;
2006 }
2007
2008 /*
2009  * qlafx00_initialize_adapter
2010  *      Initialize board.
2011  *
2012  * Input:
2013  *      ha = adapter block pointer.
2014  *
2015  * Returns:
2016  *      0 = success
2017  */
2018 int
2019 qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2020 {
2021         int     rval;
2022         struct qla_hw_data *ha = vha->hw;
2023         uint32_t tempc;
2024
2025         /* Clear adapter flags. */
2026         vha->flags.online = 0;
2027         ha->flags.chip_reset_done = 0;
2028         vha->flags.reset_active = 0;
2029         ha->flags.pci_channel_io_perm_failure = 0;
2030         ha->flags.eeh_busy = 0;
2031         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2032         atomic_set(&vha->loop_state, LOOP_DOWN);
2033         vha->device_flags = DFLG_NO_CABLE;
2034         vha->dpc_flags = 0;
2035         vha->flags.management_server_logged_in = 0;
2036         ha->isp_abort_cnt = 0;
2037         ha->beacon_blink_led = 0;
2038
2039         set_bit(0, ha->req_qid_map);
2040         set_bit(0, ha->rsp_qid_map);
2041
2042         ql_dbg(ql_dbg_init, vha, 0x0147,
2043             "Configuring PCI space...\n");
2044
2045         rval = ha->isp_ops->pci_config(vha);
2046         if (rval) {
2047                 ql_log(ql_log_warn, vha, 0x0148,
2048                     "Unable to configure PCI space.\n");
2049                 return rval;
2050         }
2051
2052         rval = qlafx00_init_fw_ready(vha);
2053         if (rval != QLA_SUCCESS)
2054                 return rval;
2055
2056         qlafx00_save_queue_ptrs(vha);
2057
2058         rval = qlafx00_config_queues(vha);
2059         if (rval != QLA_SUCCESS)
2060                 return rval;
2061
2062         /*
2063          * Allocate the array of outstanding commands
2064          * now that we know the firmware resources.
2065          */
2066         rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2067         if (rval != QLA_SUCCESS)
2068                 return rval;
2069
2070         rval = qla2x00_init_rings(vha);
2071         ha->flags.chip_reset_done = 1;
2072
2073         tempc = QLAFX00_GET_TEMPERATURE(ha);
2074         ql_dbg(ql_dbg_init, vha, 0x0152,
2075             "ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
2076             __func__, tempc);
2077
2078         return rval;
2079 }
2080
2081 uint32_t
2082 qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2083                       char *buf)
2084 {
2085         scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2086         int rval = QLA_FUNCTION_FAILED;
2087         uint32_t state[1];
2088
2089         if (qla2x00_reset_active(vha))
2090                 ql_log(ql_log_warn, vha, 0x70ce,
2091                     "ISP reset active.\n");
2092         else if (!vha->hw->flags.eeh_busy) {
2093                 rval = qlafx00_get_firmware_state(vha, state);
2094         }
2095         if (rval != QLA_SUCCESS)
2096                 memset(state, -1, sizeof(state));
2097
2098         return state[0];
2099 }
2100
2101 void
2102 qlafx00_get_host_speed(struct Scsi_Host *shost)
2103 {
2104         struct qla_hw_data *ha = ((struct scsi_qla_host *)
2105                                         (shost_priv(shost)))->hw;
2106         u32 speed = FC_PORTSPEED_UNKNOWN;
2107
2108         switch (ha->link_data_rate) {
2109         case QLAFX00_PORT_SPEED_2G:
2110                 speed = FC_PORTSPEED_2GBIT;
2111                 break;
2112         case QLAFX00_PORT_SPEED_4G:
2113                 speed = FC_PORTSPEED_4GBIT;
2114                 break;
2115         case QLAFX00_PORT_SPEED_8G:
2116                 speed = FC_PORTSPEED_8GBIT;
2117                 break;
2118         case QLAFX00_PORT_SPEED_10G:
2119                 speed = FC_PORTSPEED_10GBIT;
2120                 break;
2121         }
2122         fc_host_speed(shost) = speed;
2123 }
2124
2125 /** QLAFX00 specific ISR implementation functions */
2126
2127 static inline void
2128 qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2129                      uint32_t sense_len, struct rsp_que *rsp, int res)
2130 {
2131         struct scsi_qla_host *vha = sp->vha;
2132         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2133         uint32_t track_sense_len;
2134
2135         SET_FW_SENSE_LEN(sp, sense_len);
2136
2137         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2138                 sense_len = SCSI_SENSE_BUFFERSIZE;
2139
2140         SET_CMD_SENSE_LEN(sp, sense_len);
2141         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2142         track_sense_len = sense_len;
2143
2144         if (sense_len > par_sense_len)
2145                 sense_len = par_sense_len;
2146
2147         memcpy(cp->sense_buffer, sense_data, sense_len);
2148
2149         SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2150
2151         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2152         track_sense_len -= sense_len;
2153         SET_CMD_SENSE_LEN(sp, track_sense_len);
2154
2155         ql_dbg(ql_dbg_io, vha, 0x304d,
2156             "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2157             sense_len, par_sense_len, track_sense_len);
2158         if (GET_FW_SENSE_LEN(sp) > 0) {
2159                 rsp->status_srb = sp;
2160                 cp->result = res;
2161         }
2162
2163         if (sense_len) {
2164                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2165                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2166                     sp->vha->host_no, cp->device->id, cp->device->lun,
2167                     cp);
2168                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2169                     cp->sense_buffer, sense_len);
2170         }
2171 }
2172
2173 static void
2174 qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2175                       struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2176                       __le16 sstatus, __le16 cpstatus)
2177 {
2178         struct srb_iocb *tmf;
2179
2180         tmf = &sp->u.iocb_cmd;
2181         if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
2182             (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
2183                 cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2184         tmf->u.tmf.comp_status = cpstatus;
2185         sp->done(sp, 0);
2186 }
2187
2188 static void
2189 qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2190                          struct abort_iocb_entry_fx00 *pkt)
2191 {
2192         const char func[] = "ABT_IOCB";
2193         srb_t *sp;
2194         struct srb_iocb *abt;
2195
2196         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2197         if (!sp)
2198                 return;
2199
2200         abt = &sp->u.iocb_cmd;
2201         abt->u.abt.comp_status = pkt->tgt_id_sts;
2202         sp->done(sp, 0);
2203 }
2204
2205 static void
2206 qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2207                          struct ioctl_iocb_entry_fx00 *pkt)
2208 {
2209         const char func[] = "IOSB_IOCB";
2210         srb_t *sp;
2211         struct bsg_job *bsg_job;
2212         struct fc_bsg_reply *bsg_reply;
2213         struct srb_iocb *iocb_job;
2214         int res;
2215         struct qla_mt_iocb_rsp_fx00 fstatus;
2216         uint8_t *fw_sts_ptr;
2217
2218         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2219         if (!sp)
2220                 return;
2221
2222         if (sp->type == SRB_FXIOCB_DCMD) {
2223                 iocb_job = &sp->u.iocb_cmd;
2224                 iocb_job->u.fxiocb.seq_number = pkt->seq_no;
2225                 iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
2226                 iocb_job->u.fxiocb.result = pkt->status;
2227                 if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2228                         iocb_job->u.fxiocb.req_data =
2229                             pkt->dataword_r;
2230         } else {
2231                 bsg_job = sp->u.bsg_job;
2232                 bsg_reply = bsg_job->reply;
2233
2234                 memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2235
2236                 fstatus.reserved_1 = pkt->reserved_0;
2237                 fstatus.func_type = pkt->comp_func_num;
2238                 fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2239                 fstatus.ioctl_data = pkt->dataword_r;
2240                 fstatus.adapid = pkt->adapid;
2241                 fstatus.reserved_2 = pkt->dataword_r_extra;
2242                 fstatus.res_count = pkt->residuallen;
2243                 fstatus.status = pkt->status;
2244                 fstatus.seq_number = pkt->seq_no;
2245                 memcpy(fstatus.reserved_3,
2246                     pkt->reserved_2, 20 * sizeof(uint8_t));
2247
2248                 fw_sts_ptr = ((uint8_t *)scsi_req(bsg_job->req)->sense) +
2249                     sizeof(struct fc_bsg_reply);
2250
2251                 memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
2252                     sizeof(struct qla_mt_iocb_rsp_fx00));
2253                 bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2254                         sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2255
2256                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2257                     sp->fcport->vha, 0x5080,
2258                     (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));
2259
2260                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2261                     sp->fcport->vha, 0x5074,
2262                     (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));
2263
2264                 res = bsg_reply->result = DID_OK << 16;
2265                 bsg_reply->reply_payload_rcv_len =
2266                     bsg_job->reply_payload.payload_len;
2267         }
2268         sp->done(sp, res);
2269 }
2270
2271 /**
2272  * qlafx00_status_entry() - Process a Status IOCB entry.
2273  * @ha: SCSI driver HA context
2274  * @pkt: Entry pointer
2275  */
2276 static void
2277 qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2278 {
2279         srb_t           *sp;
2280         fc_port_t       *fcport;
2281         struct scsi_cmnd *cp;
2282         struct sts_entry_fx00 *sts;
2283         __le16          comp_status;
2284         __le16          scsi_status;
2285         __le16          lscsi_status;
2286         int32_t         resid;
2287         uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2288             fw_resid_len;
2289         uint8_t         *rsp_info = NULL, *sense_data = NULL;
2290         struct qla_hw_data *ha = vha->hw;
2291         uint32_t hindex, handle;
2292         uint16_t que;
2293         struct req_que *req;
2294         int logit = 1;
2295         int res = 0;
2296
2297         sts = (struct sts_entry_fx00 *) pkt;
2298
2299         comp_status = sts->comp_status;
2300         scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2301         hindex = sts->handle;
2302         handle = LSW(hindex);
2303
2304         que = MSW(hindex);
2305         req = ha->req_q_map[que];
2306
2307         /* Validate handle. */
2308         if (handle < req->num_outstanding_cmds)
2309                 sp = req->outstanding_cmds[handle];
2310         else
2311                 sp = NULL;
2312
2313         if (sp == NULL) {
2314                 ql_dbg(ql_dbg_io, vha, 0x3034,
2315                     "Invalid status handle (0x%x).\n", handle);
2316
2317                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2318                 qla2xxx_wake_dpc(vha);
2319                 return;
2320         }
2321
2322         if (sp->type == SRB_TM_CMD) {
2323                 req->outstanding_cmds[handle] = NULL;
2324                 qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2325                     scsi_status, comp_status);
2326                 return;
2327         }
2328
2329         /* Fast path completion. */
2330         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2331                 qla2x00_process_completed_request(vha, req, handle);
2332                 return;
2333         }
2334
2335         req->outstanding_cmds[handle] = NULL;
2336         cp = GET_CMD_SP(sp);
2337         if (cp == NULL) {
2338                 ql_dbg(ql_dbg_io, vha, 0x3048,
2339                     "Command already returned (0x%x/%p).\n",
2340                     handle, sp);
2341
2342                 return;
2343         }
2344
2345         lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2346
2347         fcport = sp->fcport;
2348
2349         sense_len = par_sense_len = rsp_info_len = resid_len =
2350                 fw_resid_len = 0;
2351         if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
2352                 sense_len = sts->sense_len;
2353         if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2354             | (uint16_t)SS_RESIDUAL_OVER)))
2355                 resid_len = le32_to_cpu(sts->residual_len);
2356         if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2357                 fw_resid_len = le32_to_cpu(sts->residual_len);
2358         rsp_info = sense_data = sts->data;
2359         par_sense_len = sizeof(sts->data);
2360
2361         /* Check for overrun. */
2362         if (comp_status == CS_COMPLETE &&
2363             scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
2364                 comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2365
2366         /*
2367          * Based on Host and scsi status generate status code for Linux
2368          */
2369         switch (le16_to_cpu(comp_status)) {
2370         case CS_COMPLETE:
2371         case CS_QUEUE_FULL:
2372                 if (scsi_status == 0) {
2373                         res = DID_OK << 16;
2374                         break;
2375                 }
2376                 if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2377                     | (uint16_t)SS_RESIDUAL_OVER))) {
2378                         resid = resid_len;
2379                         scsi_set_resid(cp, resid);
2380
2381                         if (!lscsi_status &&
2382                             ((unsigned)(scsi_bufflen(cp) - resid) <
2383                              cp->underflow)) {
2384                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2385                                     "Mid-layer underflow "
2386                                     "detected (0x%x of 0x%x bytes).\n",
2387                                     resid, scsi_bufflen(cp));
2388
2389                                 res = DID_ERROR << 16;
2390                                 break;
2391                         }
2392                 }
2393                 res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2394
2395                 if (lscsi_status ==
2396                     cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2397                         ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2398                             "QUEUE FULL detected.\n");
2399                         break;
2400                 }
2401                 logit = 0;
2402                 if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2403                         break;
2404
2405                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2406                 if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2407                         break;
2408
2409                 qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2410                     rsp, res);
2411                 break;
2412
2413         case CS_DATA_UNDERRUN:
2414                 /* Use F/W calculated residual length. */
2415                 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2416                         resid = fw_resid_len;
2417                 else
2418                         resid = resid_len;
2419                 scsi_set_resid(cp, resid);
2420                 if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2421                         if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2422                             && fw_resid_len != resid_len) {
2423                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2424                                     "Dropped frame(s) detected "
2425                                     "(0x%x of 0x%x bytes).\n",
2426                                     resid, scsi_bufflen(cp));
2427
2428                                 res = DID_ERROR << 16 |
2429                                     le16_to_cpu(lscsi_status);
2430                                 goto check_scsi_status;
2431                         }
2432
2433                         if (!lscsi_status &&
2434                             ((unsigned)(scsi_bufflen(cp) - resid) <
2435                             cp->underflow)) {
2436                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2437                                     "Mid-layer underflow "
2438                                     "detected (0x%x of 0x%x bytes, "
2439                                     "cp->underflow: 0x%x).\n",
2440                                     resid, scsi_bufflen(cp), cp->underflow);
2441
2442                                 res = DID_ERROR << 16;
2443                                 break;
2444                         }
2445                 } else if (lscsi_status !=
2446                     cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
2447                     lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2448                         /*
2449                          * scsi status of task set and busy are considered
2450                          * to be task not completed.
2451                          */
2452
2453                         ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2454                             "Dropped frame(s) detected (0x%x "
2455                             "of 0x%x bytes).\n", resid,
2456                             scsi_bufflen(cp));
2457
2458                         res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2459                         goto check_scsi_status;
2460                 } else {
2461                         ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2462                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2463                             scsi_status, lscsi_status);
2464                 }
2465
2466                 res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2467                 logit = 0;
2468
2469 check_scsi_status:
2470                 /*
2471                  * Check to see if SCSI Status is non zero. If so report SCSI
2472                  * Status.
2473                  */
2474                 if (lscsi_status != 0) {
2475                         if (lscsi_status ==
2476                             cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2477                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2478                                     "QUEUE FULL detected.\n");
2479                                 logit = 1;
2480                                 break;
2481                         }
2482                         if (lscsi_status !=
2483                             cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2484                                 break;
2485
2486                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2487                         if (!(scsi_status &
2488                             cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2489                                 break;
2490
2491                         qlafx00_handle_sense(sp, sense_data, par_sense_len,
2492                             sense_len, rsp, res);
2493                 }
2494                 break;
2495
2496         case CS_PORT_LOGGED_OUT:
2497         case CS_PORT_CONFIG_CHG:
2498         case CS_PORT_BUSY:
2499         case CS_INCOMPLETE:
2500         case CS_PORT_UNAVAILABLE:
2501         case CS_TIMEOUT:
2502         case CS_RESET:
2503
2504                 /*
2505                  * We are going to have the fc class block the rport
2506                  * while we try to recover so instruct the mid layer
2507                  * to requeue until the class decides how to handle this.
2508                  */
2509                 res = DID_TRANSPORT_DISRUPTED << 16;
2510
2511                 ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2512                     "Port down status: port-state=0x%x.\n",
2513                     atomic_read(&fcport->state));
2514
2515                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2516                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2517                 break;
2518
2519         case CS_ABORTED:
2520                 res = DID_RESET << 16;
2521                 break;
2522
2523         default:
2524                 res = DID_ERROR << 16;
2525                 break;
2526         }
2527
2528         if (logit)
2529                 ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2530                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2531                     "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
2532                     "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
2533                     "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2534                     comp_status, scsi_status, res, vha->host_no,
2535                     cp->device->id, cp->device->lun, fcport->tgt_id,
2536                     lscsi_status, cp->cmnd, scsi_bufflen(cp),
2537                     rsp_info, resid_len, fw_resid_len, sense_len,
2538                     par_sense_len, rsp_info_len);
2539
2540         if (rsp->status_srb == NULL)
2541                 sp->done(sp, res);
2542 }
2543
2544 /**
2545  * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2546  * @ha: SCSI driver HA context
2547  * @pkt: Entry pointer
2548  *
2549  * Extended sense data.
2550  */
2551 static void
2552 qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2553 {
2554         uint8_t sense_sz = 0;
2555         struct qla_hw_data *ha = rsp->hw;
2556         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2557         srb_t *sp = rsp->status_srb;
2558         struct scsi_cmnd *cp;
2559         uint32_t sense_len;
2560         uint8_t *sense_ptr;
2561
2562         if (!sp) {
2563                 ql_dbg(ql_dbg_io, vha, 0x3037,
2564                     "no SP, sp = %p\n", sp);
2565                 return;
2566         }
2567
2568         if (!GET_FW_SENSE_LEN(sp)) {
2569                 ql_dbg(ql_dbg_io, vha, 0x304b,
2570                     "no fw sense data, sp = %p\n", sp);
2571                 return;
2572         }
2573         cp = GET_CMD_SP(sp);
2574         if (cp == NULL) {
2575                 ql_log(ql_log_warn, vha, 0x303b,
2576                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2577
2578                 rsp->status_srb = NULL;
2579                 return;
2580         }
2581
2582         if (!GET_CMD_SENSE_LEN(sp)) {
2583                 ql_dbg(ql_dbg_io, vha, 0x304c,
2584                     "no sense data, sp = %p\n", sp);
2585         } else {
2586                 sense_len = GET_CMD_SENSE_LEN(sp);
2587                 sense_ptr = GET_CMD_SENSE_PTR(sp);
2588                 ql_dbg(ql_dbg_io, vha, 0x304f,
2589                     "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2590                     sp, sense_len, sense_ptr);
2591
2592                 if (sense_len > sizeof(pkt->data))
2593                         sense_sz = sizeof(pkt->data);
2594                 else
2595                         sense_sz = sense_len;
2596
2597                 /* Move sense data. */
2598                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2599                     (uint8_t *)pkt, sizeof(sts_cont_entry_t));
2600                 memcpy(sense_ptr, pkt->data, sense_sz);
2601                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2602                     sense_ptr, sense_sz);
2603
2604                 sense_len -= sense_sz;
2605                 sense_ptr += sense_sz;
2606
2607                 SET_CMD_SENSE_PTR(sp, sense_ptr);
2608                 SET_CMD_SENSE_LEN(sp, sense_len);
2609         }
2610         sense_len = GET_FW_SENSE_LEN(sp);
2611         sense_len = (sense_len > sizeof(pkt->data)) ?
2612             (sense_len - sizeof(pkt->data)) : 0;
2613         SET_FW_SENSE_LEN(sp, sense_len);
2614
2615         /* Place command on done queue. */
2616         if (sense_len == 0) {
2617                 rsp->status_srb = NULL;
2618                 sp->done(sp, cp->result);
2619         }
2620 }
2621
2622 /**
2623  * qlafx00_multistatus_entry() - Process Multi response queue entries.
2624  * @ha: SCSI driver HA context
2625  */
2626 static void
2627 qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2628         struct rsp_que *rsp, void *pkt)
2629 {
2630         srb_t           *sp;
2631         struct multi_sts_entry_fx00 *stsmfx;
2632         struct qla_hw_data *ha = vha->hw;
2633         uint32_t handle, hindex, handle_count, i;
2634         uint16_t que;
2635         struct req_que *req;
2636         __le32 *handle_ptr;
2637
2638         stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2639
2640         handle_count = stsmfx->handle_count;
2641
2642         if (handle_count > MAX_HANDLE_COUNT) {
2643                 ql_dbg(ql_dbg_io, vha, 0x3035,
2644                     "Invalid handle count (0x%x).\n", handle_count);
2645                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2646                 qla2xxx_wake_dpc(vha);
2647                 return;
2648         }
2649
2650         handle_ptr =  &stsmfx->handles[0];
2651
2652         for (i = 0; i < handle_count; i++) {
2653                 hindex = le32_to_cpu(*handle_ptr);
2654                 handle = LSW(hindex);
2655                 que = MSW(hindex);
2656                 req = ha->req_q_map[que];
2657
2658                 /* Validate handle. */
2659                 if (handle < req->num_outstanding_cmds)
2660                         sp = req->outstanding_cmds[handle];
2661                 else
2662                         sp = NULL;
2663
2664                 if (sp == NULL) {
2665                         ql_dbg(ql_dbg_io, vha, 0x3044,
2666                             "Invalid status handle (0x%x).\n", handle);
2667                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2668                         qla2xxx_wake_dpc(vha);
2669                         return;
2670                 }
2671                 qla2x00_process_completed_request(vha, req, handle);
2672                 handle_ptr++;
2673         }
2674 }
2675
2676 /**
2677  * qlafx00_error_entry() - Process an error entry.
2678  * @ha: SCSI driver HA context
2679  * @pkt: Entry pointer
2680  */
2681 static void
2682 qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2683                     struct sts_entry_fx00 *pkt, uint8_t estatus, uint8_t etype)
2684 {
2685         srb_t *sp;
2686         struct qla_hw_data *ha = vha->hw;
2687         const char func[] = "ERROR-IOCB";
2688         uint16_t que = 0;
2689         struct req_que *req = NULL;
2690         int res = DID_ERROR << 16;
2691
2692         ql_dbg(ql_dbg_async, vha, 0x507f,
2693             "type of error status in response: 0x%x\n", estatus);
2694
2695         req = ha->req_q_map[que];
2696
2697         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2698         if (sp) {
2699                 sp->done(sp, res);
2700                 return;
2701         }
2702
2703         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2704         qla2xxx_wake_dpc(vha);
2705 }
2706
2707 /**
2708  * qlafx00_process_response_queue() - Process response queue entries.
2709  * @ha: SCSI driver HA context
2710  */
2711 static void
2712 qlafx00_process_response_queue(struct scsi_qla_host *vha,
2713         struct rsp_que *rsp)
2714 {
2715         struct sts_entry_fx00 *pkt;
2716         response_t *lptr;
2717         uint16_t lreq_q_in = 0;
2718         uint16_t lreq_q_out = 0;
2719
2720         lreq_q_in = RD_REG_DWORD(rsp->rsp_q_in);
2721         lreq_q_out = rsp->ring_index;
2722
2723         while (lreq_q_in != lreq_q_out) {
2724                 lptr = rsp->ring_ptr;
2725                 memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
2726                     sizeof(rsp->rsp_pkt));
2727                 pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2728
2729                 rsp->ring_index++;
2730                 lreq_q_out++;
2731                 if (rsp->ring_index == rsp->length) {
2732                         lreq_q_out = 0;
2733                         rsp->ring_index = 0;
2734                         rsp->ring_ptr = rsp->ring;
2735                 } else {
2736                         rsp->ring_ptr++;
2737                 }
2738
2739                 if (pkt->entry_status != 0 &&
2740                     pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2741                         qlafx00_error_entry(vha, rsp,
2742                             (struct sts_entry_fx00 *)pkt, pkt->entry_status,
2743                             pkt->entry_type);
2744                         continue;
2745                 }
2746
2747                 switch (pkt->entry_type) {
2748                 case STATUS_TYPE_FX00:
2749                         qlafx00_status_entry(vha, rsp, pkt);
2750                         break;
2751
2752                 case STATUS_CONT_TYPE_FX00:
2753                         qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2754                         break;
2755
2756                 case MULTI_STATUS_TYPE_FX00:
2757                         qlafx00_multistatus_entry(vha, rsp, pkt);
2758                         break;
2759
2760                 case ABORT_IOCB_TYPE_FX00:
2761                         qlafx00_abort_iocb_entry(vha, rsp->req,
2762                            (struct abort_iocb_entry_fx00 *)pkt);
2763                         break;
2764
2765                 case IOCTL_IOSB_TYPE_FX00:
2766                         qlafx00_ioctl_iosb_entry(vha, rsp->req,
2767                             (struct ioctl_iocb_entry_fx00 *)pkt);
2768                         break;
2769                 default:
2770                         /* Type Not Supported. */
2771                         ql_dbg(ql_dbg_async, vha, 0x5081,
2772                             "Received unknown response pkt type %x "
2773                             "entry status=%x.\n",
2774                             pkt->entry_type, pkt->entry_status);
2775                         break;
2776                 }
2777         }
2778
2779         /* Adjust ring index */
2780         WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2781 }
2782
2783 /**
2784  * qlafx00_async_event() - Process aynchronous events.
2785  * @ha: SCSI driver HA context
2786  */
2787 static void
2788 qlafx00_async_event(scsi_qla_host_t *vha)
2789 {
2790         struct qla_hw_data *ha = vha->hw;
2791         struct device_reg_fx00 __iomem *reg;
2792         int data_size = 1;
2793
2794         reg = &ha->iobase->ispfx00;
2795         /* Setup to process RIO completion. */
2796         switch (ha->aenmb[0]) {
2797         case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2798                 ql_log(ql_log_warn, vha, 0x5079,
2799                     "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2800                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2801                 break;
2802
2803         case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2804                 ql_dbg(ql_dbg_async, vha, 0x5076,
2805                     "Asynchronous FW shutdown requested.\n");
2806                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2807                 qla2xxx_wake_dpc(vha);
2808                 break;
2809
2810         case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2811                 ha->aenmb[1] = RD_REG_DWORD(&reg->aenmailbox1);
2812                 ha->aenmb[2] = RD_REG_DWORD(&reg->aenmailbox2);
2813                 ha->aenmb[3] = RD_REG_DWORD(&reg->aenmailbox3);
2814                 ql_dbg(ql_dbg_async, vha, 0x5077,
2815                     "Asynchronous port Update received "
2816                     "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2817                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2818                 data_size = 4;
2819                 break;
2820
2821         case QLAFX00_MBA_TEMP_OVER:     /* Over temperature event */
2822                 ql_log(ql_log_info, vha, 0x5085,
2823                     "Asynchronous over temperature event received "
2824                     "aenmb[0]: %x\n",
2825                     ha->aenmb[0]);
2826                 break;
2827
2828         case QLAFX00_MBA_TEMP_NORM:     /* Normal temperature event */
2829                 ql_log(ql_log_info, vha, 0x5086,
2830                     "Asynchronous normal temperature event received "
2831                     "aenmb[0]: %x\n",
2832                     ha->aenmb[0]);
2833                 break;
2834
2835         case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
2836                 ql_log(ql_log_info, vha, 0x5083,
2837                     "Asynchronous critical temperature event received "
2838                     "aenmb[0]: %x\n",
2839                 ha->aenmb[0]);
2840                 break;
2841
2842         default:
2843                 ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2844                 ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2845                 ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2846                 ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2847                 ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2848                 ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2849                 ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2850                 ql_dbg(ql_dbg_async, vha, 0x5078,
2851                     "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2852                     ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2853                     ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2854                 break;
2855         }
2856         qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2857             (uint32_t *)ha->aenmb, data_size);
2858 }
2859
2860 /**
2861  *
2862  * qlafx00x_mbx_completion() - Process mailbox command completions.
2863  * @ha: SCSI driver HA context
2864  * @mb16: Mailbox16 register
2865  */
2866 static void
2867 qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2868 {
2869         uint16_t        cnt;
2870         uint32_t __iomem *wptr;
2871         struct qla_hw_data *ha = vha->hw;
2872         struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2873
2874         if (!ha->mcp32)
2875                 ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2876
2877         /* Load return mailbox registers. */
2878         ha->flags.mbox_int = 1;
2879         ha->mailbox_out32[0] = mb0;
2880         wptr = (uint32_t __iomem *)&reg->mailbox17;
2881
2882         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2883                 ha->mailbox_out32[cnt] = RD_REG_DWORD(wptr);
2884                 wptr++;
2885         }
2886 }
2887
2888 /**
2889  * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2890  * @irq:
2891  * @dev_id: SCSI driver HA context
2892  *
2893  * Called by system whenever the host adapter generates an interrupt.
2894  *
2895  * Returns handled flag.
2896  */
2897 irqreturn_t
2898 qlafx00_intr_handler(int irq, void *dev_id)
2899 {
2900         scsi_qla_host_t *vha;
2901         struct qla_hw_data *ha;
2902         struct device_reg_fx00 __iomem *reg;
2903         int             status;
2904         unsigned long   iter;
2905         uint32_t        stat;
2906         uint32_t        mb[8];
2907         struct rsp_que *rsp;
2908         unsigned long   flags;
2909         uint32_t clr_intr = 0;
2910         uint32_t intr_stat = 0;
2911
2912         rsp = (struct rsp_que *) dev_id;
2913         if (!rsp) {
2914                 ql_log(ql_log_info, NULL, 0x507d,
2915                     "%s: NULL response queue pointer.\n", __func__);
2916                 return IRQ_NONE;
2917         }
2918
2919         ha = rsp->hw;
2920         reg = &ha->iobase->ispfx00;
2921         status = 0;
2922
2923         if (unlikely(pci_channel_offline(ha->pdev)))
2924                 return IRQ_HANDLED;
2925
2926         spin_lock_irqsave(&ha->hardware_lock, flags);
2927         vha = pci_get_drvdata(ha->pdev);
2928         for (iter = 50; iter--; clr_intr = 0) {
2929                 stat = QLAFX00_RD_INTR_REG(ha);
2930                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2931                         break;
2932                 intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
2933                 if (!intr_stat)
2934                         break;
2935
2936                 if (stat & QLAFX00_INTR_MB_CMPLT) {
2937                         mb[0] = RD_REG_WORD(&reg->mailbox16);
2938                         qlafx00_mbx_completion(vha, mb[0]);
2939                         status |= MBX_INTERRUPT;
2940                         clr_intr |= QLAFX00_INTR_MB_CMPLT;
2941                 }
2942                 if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
2943                         ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2944                         qlafx00_async_event(vha);
2945                         clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2946                 }
2947                 if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
2948                         qlafx00_process_response_queue(vha, rsp);
2949                         clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2950                 }
2951
2952                 QLAFX00_CLR_INTR_REG(ha, clr_intr);
2953                 QLAFX00_RD_INTR_REG(ha);
2954         }
2955
2956         qla2x00_handle_mbx_completion(ha, status);
2957         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2958
2959         return IRQ_HANDLED;
2960 }
2961
2962 /** QLAFX00 specific IOCB implementation functions */
2963
2964 static inline cont_a64_entry_t *
2965 qlafx00_prep_cont_type1_iocb(struct req_que *req,
2966                              cont_a64_entry_t *lcont_pkt)
2967 {
2968         cont_a64_entry_t *cont_pkt;
2969
2970         /* Adjust ring index. */
2971         req->ring_index++;
2972         if (req->ring_index == req->length) {
2973                 req->ring_index = 0;
2974                 req->ring_ptr = req->ring;
2975         } else {
2976                 req->ring_ptr++;
2977         }
2978
2979         cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2980
2981         /* Load packet defaults. */
2982         lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
2983
2984         return cont_pkt;
2985 }
2986
2987 static inline void
2988 qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2989                          uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2990 {
2991         uint16_t        avail_dsds;
2992         __le32 *cur_dsd;
2993         scsi_qla_host_t *vha;
2994         struct scsi_cmnd *cmd;
2995         struct scatterlist *sg;
2996         int i, cont;
2997         struct req_que *req;
2998         cont_a64_entry_t lcont_pkt;
2999         cont_a64_entry_t *cont_pkt;
3000
3001         vha = sp->vha;
3002         req = vha->req;
3003
3004         cmd = GET_CMD_SP(sp);
3005         cont = 0;
3006         cont_pkt = NULL;
3007
3008         /* Update entry type to indicate Command Type 3 IOCB */
3009         lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3010
3011         /* No data transfer */
3012         if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3013                 lcmd_pkt->byte_count = cpu_to_le32(0);
3014                 return;
3015         }
3016
3017         /* Set transfer direction */
3018         if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3019                 lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3020                 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3021         } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3022                 lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3023                 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3024         }
3025
3026         /* One DSD is available in the Command Type 3 IOCB */
3027         avail_dsds = 1;
3028         cur_dsd = (__le32 *)&lcmd_pkt->dseg_0_address;
3029
3030         /* Load data segments */
3031         scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3032                 dma_addr_t      sle_dma;
3033
3034                 /* Allocate additional continuation packets? */
3035                 if (avail_dsds == 0) {
3036                         /*
3037                          * Five DSDs are available in the Continuation
3038                          * Type 1 IOCB.
3039                          */
3040                         memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3041                         cont_pkt =
3042                             qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3043                         cur_dsd = (__le32 *)lcont_pkt.dseg_0_address;
3044                         avail_dsds = 5;
3045                         cont = 1;
3046                 }
3047
3048                 sle_dma = sg_dma_address(sg);
3049                 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3050                 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3051                 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3052                 avail_dsds--;
3053                 if (avail_dsds == 0 && cont == 1) {
3054                         cont = 0;
3055                         memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3056                             REQUEST_ENTRY_SIZE);
3057                 }
3058
3059         }
3060         if (avail_dsds != 0 && cont == 1) {
3061                 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3062                     REQUEST_ENTRY_SIZE);
3063         }
3064 }
3065
3066 /**
3067  * qlafx00_start_scsi() - Send a SCSI command to the ISP
3068  * @sp: command to send to the ISP
3069  *
3070  * Returns non-zero if a failure occurred, else zero.
3071  */
3072 int
3073 qlafx00_start_scsi(srb_t *sp)
3074 {
3075         int             nseg;
3076         unsigned long   flags;
3077         uint32_t        index;
3078         uint32_t        handle;
3079         uint16_t        cnt;
3080         uint16_t        req_cnt;
3081         uint16_t        tot_dsds;
3082         struct req_que *req = NULL;
3083         struct rsp_que *rsp = NULL;
3084         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3085         struct scsi_qla_host *vha = sp->vha;
3086         struct qla_hw_data *ha = vha->hw;
3087         struct cmd_type_7_fx00 *cmd_pkt;
3088         struct cmd_type_7_fx00 lcmd_pkt;
3089         struct scsi_lun llun;
3090
3091         /* Setup device pointers. */
3092         rsp = ha->rsp_q_map[0];
3093         req = vha->req;
3094
3095         /* So we know we haven't pci_map'ed anything yet */
3096         tot_dsds = 0;
3097
3098         /* Acquire ring specific lock */
3099         spin_lock_irqsave(&ha->hardware_lock, flags);
3100
3101         /* Check for room in outstanding command list. */
3102         handle = req->current_outstanding_cmd;
3103         for (index = 1; index < req->num_outstanding_cmds; index++) {
3104                 handle++;
3105                 if (handle == req->num_outstanding_cmds)
3106                         handle = 1;
3107                 if (!req->outstanding_cmds[handle])
3108                         break;
3109         }
3110         if (index == req->num_outstanding_cmds)
3111                 goto queuing_error;
3112
3113         /* Map the sg table so we have an accurate count of sg entries needed */
3114         if (scsi_sg_count(cmd)) {
3115                 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3116                     scsi_sg_count(cmd), cmd->sc_data_direction);
3117                 if (unlikely(!nseg))
3118                         goto queuing_error;
3119         } else
3120                 nseg = 0;
3121
3122         tot_dsds = nseg;
3123         req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3124         if (req->cnt < (req_cnt + 2)) {
3125                 cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3126
3127                 if (req->ring_index < cnt)
3128                         req->cnt = cnt - req->ring_index;
3129                 else
3130                         req->cnt = req->length -
3131                                 (req->ring_index - cnt);
3132                 if (req->cnt < (req_cnt + 2))
3133                         goto queuing_error;
3134         }
3135
3136         /* Build command packet. */
3137         req->current_outstanding_cmd = handle;
3138         req->outstanding_cmds[handle] = sp;
3139         sp->handle = handle;
3140         cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3141         req->cnt -= req_cnt;
3142
3143         cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3144
3145         memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3146
3147         lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3148         lcmd_pkt.reserved_0 = 0;
3149         lcmd_pkt.port_path_ctrl = 0;
3150         lcmd_pkt.reserved_1 = 0;
3151         lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3152         lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3153
3154         int_to_scsilun(cmd->device->lun, &llun);
3155         host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3156             sizeof(lcmd_pkt.lun));
3157
3158         /* Load SCSI command packet. */
3159         host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3160         lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3161
3162         /* Build IOCB segments */
3163         qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3164
3165         /* Set total data segment count. */
3166         lcmd_pkt.entry_count = (uint8_t)req_cnt;
3167
3168         /* Specify response queue number where completion should happen */
3169         lcmd_pkt.entry_status = (uint8_t) rsp->id;
3170
3171         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3172             (uint8_t *)cmd->cmnd, cmd->cmd_len);
3173         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3174             (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);
3175
3176         memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3177         wmb();
3178
3179         /* Adjust ring index. */
3180         req->ring_index++;
3181         if (req->ring_index == req->length) {
3182                 req->ring_index = 0;
3183                 req->ring_ptr = req->ring;
3184         } else
3185                 req->ring_ptr++;
3186
3187         sp->flags |= SRB_DMA_VALID;
3188
3189         /* Set chip new ring index. */
3190         WRT_REG_DWORD(req->req_q_in, req->ring_index);
3191         QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3192
3193         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3194         return QLA_SUCCESS;
3195
3196 queuing_error:
3197         if (tot_dsds)
3198                 scsi_dma_unmap(cmd);
3199
3200         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3201
3202         return QLA_FUNCTION_FAILED;
3203 }
3204
3205 void
3206 qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3207 {
3208         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3209         scsi_qla_host_t *vha = sp->vha;
3210         struct req_que *req = vha->req;
3211         struct tsk_mgmt_entry_fx00 tm_iocb;
3212         struct scsi_lun llun;
3213
3214         memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3215         tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3216         tm_iocb.entry_count = 1;
3217         tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3218         tm_iocb.reserved_0 = 0;
3219         tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3220         tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3221         if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3222                 int_to_scsilun(fxio->u.tmf.lun, &llun);
3223                 host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3224                     sizeof(struct scsi_lun));
3225         }
3226
3227         memcpy((void *)ptm_iocb, &tm_iocb,
3228             sizeof(struct tsk_mgmt_entry_fx00));
3229         wmb();
3230 }
3231
3232 void
3233 qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3234 {
3235         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3236         scsi_qla_host_t *vha = sp->vha;
3237         struct req_que *req = vha->req;
3238         struct abort_iocb_entry_fx00 abt_iocb;
3239
3240         memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3241         abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3242         abt_iocb.entry_count = 1;
3243         abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3244         abt_iocb.abort_handle =
3245             cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3246         abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3247         abt_iocb.req_que_no = cpu_to_le16(req->id);
3248
3249         memcpy((void *)pabt_iocb, &abt_iocb,
3250             sizeof(struct abort_iocb_entry_fx00));
3251         wmb();
3252 }
3253
3254 void
3255 qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3256 {
3257         struct srb_iocb *fxio = &sp->u.iocb_cmd;
3258         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3259         struct bsg_job *bsg_job;
3260         struct fc_bsg_request *bsg_request;
3261         struct fxdisc_entry_fx00 fx_iocb;
3262         uint8_t entry_cnt = 1;
3263
3264         memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3265         fx_iocb.entry_type = FX00_IOCB_TYPE;
3266         fx_iocb.handle = cpu_to_le32(sp->handle);
3267         fx_iocb.entry_count = entry_cnt;
3268
3269         if (sp->type == SRB_FXIOCB_DCMD) {
3270                 fx_iocb.func_num =
3271                     sp->u.iocb_cmd.u.fxiocb.req_func_type;
3272                 fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
3273                 fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
3274                 fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
3275                 fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
3276                 fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3277
3278                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3279                         fx_iocb.req_dsdcnt = cpu_to_le16(1);
3280                         fx_iocb.req_xfrcnt =
3281                             cpu_to_le16(fxio->u.fxiocb.req_len);
3282                         fx_iocb.dseg_rq_address[0] =
3283                             cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
3284                         fx_iocb.dseg_rq_address[1] =
3285                             cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
3286                         fx_iocb.dseg_rq_len =
3287                             cpu_to_le32(fxio->u.fxiocb.req_len);
3288                 }
3289
3290                 if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3291                         fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3292                         fx_iocb.rsp_xfrcnt =
3293                             cpu_to_le16(fxio->u.fxiocb.rsp_len);
3294                         fx_iocb.dseg_rsp_address[0] =
3295                             cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
3296                         fx_iocb.dseg_rsp_address[1] =
3297                             cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
3298                         fx_iocb.dseg_rsp_len =
3299                             cpu_to_le32(fxio->u.fxiocb.rsp_len);
3300                 }
3301
3302                 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3303                         fx_iocb.dataword = fxio->u.fxiocb.req_data;
3304                 }
3305                 fx_iocb.flags = fxio->u.fxiocb.flags;
3306         } else {
3307                 struct scatterlist *sg;
3308                 bsg_job = sp->u.bsg_job;
3309                 bsg_request = bsg_job->request;
3310                 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3311                         &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3312
3313                 fx_iocb.func_num = piocb_rqst->func_type;
3314                 fx_iocb.adapid = piocb_rqst->adapid;
3315                 fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3316                 fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3317                 fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3318                 fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3319                 fx_iocb.dataword = piocb_rqst->dataword;
3320                 fx_iocb.req_xfrcnt = piocb_rqst->req_len;
3321                 fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3322
3323                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3324                         int avail_dsds, tot_dsds;
3325                         cont_a64_entry_t lcont_pkt;
3326                         cont_a64_entry_t *cont_pkt = NULL;
3327                         __le32 *cur_dsd;
3328                         int index = 0, cont = 0;
3329
3330                         fx_iocb.req_dsdcnt =
3331                             cpu_to_le16(bsg_job->request_payload.sg_cnt);
3332                         tot_dsds =
3333                             bsg_job->request_payload.sg_cnt;
3334                         cur_dsd = (__le32 *)&fx_iocb.dseg_rq_address[0];
3335                         avail_dsds = 1;
3336                         for_each_sg(bsg_job->request_payload.sg_list, sg,
3337                             tot_dsds, index) {
3338                                 dma_addr_t sle_dma;
3339
3340                                 /* Allocate additional continuation packets? */
3341                                 if (avail_dsds == 0) {
3342                                         /*
3343                                          * Five DSDs are available in the Cont.
3344                                          * Type 1 IOCB.
3345                                          */
3346                                         memset(&lcont_pkt, 0,
3347                                             REQUEST_ENTRY_SIZE);
3348                                         cont_pkt =
3349                                             qlafx00_prep_cont_type1_iocb(
3350                                                 sp->vha->req, &lcont_pkt);
3351                                         cur_dsd = (__le32 *)
3352                                             lcont_pkt.dseg_0_address;
3353                                         avail_dsds = 5;
3354                                         cont = 1;
3355                                         entry_cnt++;
3356                                 }
3357
3358                                 sle_dma = sg_dma_address(sg);
3359                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3360                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3361                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3362                                 avail_dsds--;
3363
3364                                 if (avail_dsds == 0 && cont == 1) {
3365                                         cont = 0;
3366                                         memcpy_toio(
3367                                             (void __iomem *)cont_pkt,
3368                                             &lcont_pkt, REQUEST_ENTRY_SIZE);
3369                                         ql_dump_buffer(
3370                                             ql_dbg_user + ql_dbg_verbose,
3371                                             sp->vha, 0x3042,
3372                                             (uint8_t *)&lcont_pkt,
3373                                              REQUEST_ENTRY_SIZE);
3374                                 }
3375                         }
3376                         if (avail_dsds != 0 && cont == 1) {
3377                                 memcpy_toio((void __iomem *)cont_pkt,
3378                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3379                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3380                                     sp->vha, 0x3043,
3381                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3382                         }
3383                 }
3384
3385                 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3386                         int avail_dsds, tot_dsds;
3387                         cont_a64_entry_t lcont_pkt;
3388                         cont_a64_entry_t *cont_pkt = NULL;
3389                         __le32 *cur_dsd;
3390                         int index = 0, cont = 0;
3391
3392                         fx_iocb.rsp_dsdcnt =
3393                            cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3394                         tot_dsds = bsg_job->reply_payload.sg_cnt;
3395                         cur_dsd = (__le32 *)&fx_iocb.dseg_rsp_address[0];
3396                         avail_dsds = 1;
3397
3398                         for_each_sg(bsg_job->reply_payload.sg_list, sg,
3399                             tot_dsds, index) {
3400                                 dma_addr_t sle_dma;
3401
3402                                 /* Allocate additional continuation packets? */
3403                                 if (avail_dsds == 0) {
3404                                         /*
3405                                         * Five DSDs are available in the Cont.
3406                                         * Type 1 IOCB.
3407                                         */
3408                                         memset(&lcont_pkt, 0,
3409                                             REQUEST_ENTRY_SIZE);
3410                                         cont_pkt =
3411                                             qlafx00_prep_cont_type1_iocb(
3412                                                 sp->vha->req, &lcont_pkt);
3413                                         cur_dsd = (__le32 *)
3414                                             lcont_pkt.dseg_0_address;
3415                                         avail_dsds = 5;
3416                                         cont = 1;
3417                                         entry_cnt++;
3418                                 }
3419
3420                                 sle_dma = sg_dma_address(sg);
3421                                 *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3422                                 *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3423                                 *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3424                                 avail_dsds--;
3425
3426                                 if (avail_dsds == 0 && cont == 1) {
3427                                         cont = 0;
3428                                         memcpy_toio((void __iomem *)cont_pkt,
3429                                             &lcont_pkt,
3430                                             REQUEST_ENTRY_SIZE);
3431                                         ql_dump_buffer(
3432                                             ql_dbg_user + ql_dbg_verbose,
3433                                             sp->vha, 0x3045,
3434                                             (uint8_t *)&lcont_pkt,
3435                                             REQUEST_ENTRY_SIZE);
3436                                 }
3437                         }
3438                         if (avail_dsds != 0 && cont == 1) {
3439                                 memcpy_toio((void __iomem *)cont_pkt,
3440                                     &lcont_pkt, REQUEST_ENTRY_SIZE);
3441                                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3442                                     sp->vha, 0x3046,
3443                                     (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3444                         }
3445                 }
3446
3447                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3448                         fx_iocb.dataword = piocb_rqst->dataword;
3449                 fx_iocb.flags = piocb_rqst->flags;
3450                 fx_iocb.entry_count = entry_cnt;
3451         }
3452
3453         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3454             sp->vha, 0x3047,
3455             (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));
3456
3457         memcpy_toio((void __iomem *)pfxiocb, &fx_iocb,
3458             sizeof(struct fxdisc_entry_fx00));
3459         wmb();
3460 }