linux/drivers/scsi/qla2xxx/qla_mr.c
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   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 <scsi/scsi_tcq.h>
  14#include <linux/utsname.h>
  15
  16
  17/* QLAFX00 specific Mailbox implementation functions */
  18
  19/*
  20 * qlafx00_mailbox_command
  21 *      Issue mailbox command and waits for completion.
  22 *
  23 * Input:
  24 *      ha = adapter block pointer.
  25 *      mcp = driver internal mbx struct pointer.
  26 *
  27 * Output:
  28 *      mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
  29 *
  30 * Returns:
  31 *      0 : QLA_SUCCESS = cmd performed success
  32 *      1 : QLA_FUNCTION_FAILED   (error encountered)
  33 *      6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
  34 *
  35 * Context:
  36 *      Kernel context.
  37 */
  38static int
  39qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
  40
  41{
  42        int             rval;
  43        unsigned long    flags = 0;
  44        device_reg_t *reg;
  45        uint8_t         abort_active;
  46        uint8_t         io_lock_on;
  47        uint16_t        command = 0;
  48        uint32_t        *iptr;
  49        __le32 __iomem *optr;
  50        uint32_t        cnt;
  51        uint32_t        mboxes;
  52        unsigned long   wait_time;
  53        struct qla_hw_data *ha = vha->hw;
  54        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
  55
  56        if (ha->pdev->error_state == pci_channel_io_perm_failure) {
  57                ql_log(ql_log_warn, vha, 0x115c,
  58                    "PCI channel failed permanently, exiting.\n");
  59                return QLA_FUNCTION_TIMEOUT;
  60        }
  61
  62        if (vha->device_flags & DFLG_DEV_FAILED) {
  63                ql_log(ql_log_warn, vha, 0x115f,
  64                    "Device in failed state, exiting.\n");
  65                return QLA_FUNCTION_TIMEOUT;
  66        }
  67
  68        reg = ha->iobase;
  69        io_lock_on = base_vha->flags.init_done;
  70
  71        rval = QLA_SUCCESS;
  72        abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
  73
  74        if (ha->flags.pci_channel_io_perm_failure) {
  75                ql_log(ql_log_warn, vha, 0x1175,
  76                    "Perm failure on EEH timeout MBX, exiting.\n");
  77                return QLA_FUNCTION_TIMEOUT;
  78        }
  79
  80        if (ha->flags.isp82xx_fw_hung) {
  81                /* Setting Link-Down error */
  82                mcp->mb[0] = MBS_LINK_DOWN_ERROR;
  83                ql_log(ql_log_warn, vha, 0x1176,
  84                    "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
  85                rval = QLA_FUNCTION_FAILED;
  86                goto premature_exit;
  87        }
  88
  89        /*
  90         * Wait for active mailbox commands to finish by waiting at most tov
  91         * seconds. This is to serialize actual issuing of mailbox cmds during
  92         * non ISP abort time.
  93         */
  94        if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
  95                /* Timeout occurred. Return error. */
  96                ql_log(ql_log_warn, vha, 0x1177,
  97                    "Cmd access timeout, cmd=0x%x, Exiting.\n",
  98                    mcp->mb[0]);
  99                return QLA_FUNCTION_TIMEOUT;
 100        }
 101
 102        ha->flags.mbox_busy = 1;
 103        /* Save mailbox command for debug */
 104        ha->mcp32 = mcp;
 105
 106        ql_dbg(ql_dbg_mbx, vha, 0x1178,
 107            "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
 108
 109        spin_lock_irqsave(&ha->hardware_lock, flags);
 110
 111        /* Load mailbox registers. */
 112        optr = &reg->ispfx00.mailbox0;
 113
 114        iptr = mcp->mb;
 115        command = mcp->mb[0];
 116        mboxes = mcp->out_mb;
 117
 118        for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 119                if (mboxes & BIT_0)
 120                        wrt_reg_dword(optr, *iptr);
 121
 122                mboxes >>= 1;
 123                optr++;
 124                iptr++;
 125        }
 126
 127        /* Issue set host interrupt command to send cmd out. */
 128        ha->flags.mbox_int = 0;
 129        clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 130
 131        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
 132            (uint8_t *)mcp->mb, 16);
 133        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
 134            ((uint8_t *)mcp->mb + 0x10), 16);
 135        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
 136            ((uint8_t *)mcp->mb + 0x20), 8);
 137
 138        /* Unlock mbx registers and wait for interrupt */
 139        ql_dbg(ql_dbg_mbx, vha, 0x1179,
 140            "Going to unlock irq & waiting for interrupts. "
 141            "jiffies=%lx.\n", jiffies);
 142
 143        /* Wait for mbx cmd completion until timeout */
 144        if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 145                set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 146
 147                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 148                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 149
 150                WARN_ON_ONCE(wait_for_completion_timeout(&ha->mbx_intr_comp,
 151                                                         mcp->tov * HZ) != 0);
 152        } else {
 153                ql_dbg(ql_dbg_mbx, vha, 0x112c,
 154                    "Cmd=%x Polling Mode.\n", command);
 155
 156                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 157                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 158
 159                wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 160                while (!ha->flags.mbox_int) {
 161                        if (time_after(jiffies, wait_time))
 162                                break;
 163
 164                        /* Check for pending interrupts. */
 165                        qla2x00_poll(ha->rsp_q_map[0]);
 166
 167                        if (!ha->flags.mbox_int &&
 168                            !(IS_QLA2200(ha) &&
 169                            command == MBC_LOAD_RISC_RAM_EXTENDED))
 170                                usleep_range(10000, 11000);
 171                } /* while */
 172                ql_dbg(ql_dbg_mbx, vha, 0x112d,
 173                    "Waited %d sec.\n",
 174                    (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 175        }
 176
 177        /* Check whether we timed out */
 178        if (ha->flags.mbox_int) {
 179                uint32_t *iptr2;
 180
 181                ql_dbg(ql_dbg_mbx, vha, 0x112e,
 182                    "Cmd=%x completed.\n", command);
 183
 184                /* Got interrupt. Clear the flag. */
 185                ha->flags.mbox_int = 0;
 186                clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 187
 188                if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 189                        rval = QLA_FUNCTION_FAILED;
 190
 191                /* Load return mailbox registers. */
 192                iptr2 = mcp->mb;
 193                iptr = (uint32_t *)&ha->mailbox_out32[0];
 194                mboxes = mcp->in_mb;
 195                for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 196                        if (mboxes & BIT_0)
 197                                *iptr2 = *iptr;
 198
 199                        mboxes >>= 1;
 200                        iptr2++;
 201                        iptr++;
 202                }
 203        } else {
 204
 205                rval = QLA_FUNCTION_TIMEOUT;
 206        }
 207
 208        ha->flags.mbox_busy = 0;
 209
 210        /* Clean up */
 211        ha->mcp32 = NULL;
 212
 213        if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 214                ql_dbg(ql_dbg_mbx, vha, 0x113a,
 215                    "checking for additional resp interrupt.\n");
 216
 217                /* polling mode for non isp_abort commands. */
 218                qla2x00_poll(ha->rsp_q_map[0]);
 219        }
 220
 221        if (rval == QLA_FUNCTION_TIMEOUT &&
 222            mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 223                if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 224                    ha->flags.eeh_busy) {
 225                        /* not in dpc. schedule it for dpc to take over. */
 226                        ql_dbg(ql_dbg_mbx, vha, 0x115d,
 227                            "Timeout, schedule isp_abort_needed.\n");
 228
 229                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 230                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 231                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 232
 233                                ql_log(ql_log_info, base_vha, 0x115e,
 234                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 235                                    "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 236                                    "abort.\n", command, mcp->mb[0],
 237                                    ha->flags.eeh_busy);
 238                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 239                                qla2xxx_wake_dpc(vha);
 240                        }
 241                } else if (!abort_active) {
 242                        /* call abort directly since we are in the DPC thread */
 243                        ql_dbg(ql_dbg_mbx, vha, 0x1160,
 244                            "Timeout, calling abort_isp.\n");
 245
 246                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 247                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 248                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 249
 250                                ql_log(ql_log_info, base_vha, 0x1161,
 251                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 252                                    "mb[0]=0x%x. Scheduling ISP abort ",
 253                                    command, mcp->mb[0]);
 254
 255                                set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 256                                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 257                                if (ha->isp_ops->abort_isp(vha)) {
 258                                        /* Failed. retry later. */
 259                                        set_bit(ISP_ABORT_NEEDED,
 260                                            &vha->dpc_flags);
 261                                }
 262                                clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 263                                ql_dbg(ql_dbg_mbx, vha, 0x1162,
 264                                    "Finished abort_isp.\n");
 265                        }
 266                }
 267        }
 268
 269premature_exit:
 270        /* Allow next mbx cmd to come in. */
 271        complete(&ha->mbx_cmd_comp);
 272
 273        if (rval) {
 274                ql_log(ql_log_warn, base_vha, 0x1163,
 275                       "**** Failed=%x mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
 276                       rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
 277                       command);
 278        } else {
 279                ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 280        }
 281
 282        return rval;
 283}
 284
 285/*
 286 * qlafx00_driver_shutdown
 287 *      Indicate a driver shutdown to firmware.
 288 *
 289 * Input:
 290 *      ha = adapter block pointer.
 291 *
 292 * Returns:
 293 *      local function return status code.
 294 *
 295 * Context:
 296 *      Kernel context.
 297 */
 298int
 299qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
 300{
 301        int rval;
 302        struct mbx_cmd_32 mc;
 303        struct mbx_cmd_32 *mcp = &mc;
 304
 305        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
 306            "Entered %s.\n", __func__);
 307
 308        mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
 309        mcp->out_mb = MBX_0;
 310        mcp->in_mb = MBX_0;
 311        if (tmo)
 312                mcp->tov = tmo;
 313        else
 314                mcp->tov = MBX_TOV_SECONDS;
 315        mcp->flags = 0;
 316        rval = qlafx00_mailbox_command(vha, mcp);
 317
 318        if (rval != QLA_SUCCESS) {
 319                ql_dbg(ql_dbg_mbx, vha, 0x1167,
 320                    "Failed=%x.\n", rval);
 321        } else {
 322                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
 323                    "Done %s.\n", __func__);
 324        }
 325
 326        return rval;
 327}
 328
 329/*
 330 * qlafx00_get_firmware_state
 331 *      Get adapter firmware state.
 332 *
 333 * Input:
 334 *      ha = adapter block pointer.
 335 *      TARGET_QUEUE_LOCK must be released.
 336 *      ADAPTER_STATE_LOCK must be released.
 337 *
 338 * Returns:
 339 *      qla7xxx local function return status code.
 340 *
 341 * Context:
 342 *      Kernel context.
 343 */
 344static int
 345qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
 346{
 347        int rval;
 348        struct mbx_cmd_32 mc;
 349        struct mbx_cmd_32 *mcp = &mc;
 350
 351        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
 352            "Entered %s.\n", __func__);
 353
 354        mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 355        mcp->out_mb = MBX_0;
 356        mcp->in_mb = MBX_1|MBX_0;
 357        mcp->tov = MBX_TOV_SECONDS;
 358        mcp->flags = 0;
 359        rval = qlafx00_mailbox_command(vha, mcp);
 360
 361        /* Return firmware states. */
 362        states[0] = mcp->mb[1];
 363
 364        if (rval != QLA_SUCCESS) {
 365                ql_dbg(ql_dbg_mbx, vha, 0x116a,
 366                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 367        } else {
 368                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
 369                    "Done %s.\n", __func__);
 370        }
 371        return rval;
 372}
 373
 374/*
 375 * qlafx00_init_firmware
 376 *      Initialize adapter firmware.
 377 *
 378 * Input:
 379 *      ha = adapter block pointer.
 380 *      dptr = Initialization control block pointer.
 381 *      size = size of initialization control block.
 382 *      TARGET_QUEUE_LOCK must be released.
 383 *      ADAPTER_STATE_LOCK must be released.
 384 *
 385 * Returns:
 386 *      qlafx00 local function return status code.
 387 *
 388 * Context:
 389 *      Kernel context.
 390 */
 391int
 392qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
 393{
 394        int rval;
 395        struct mbx_cmd_32 mc;
 396        struct mbx_cmd_32 *mcp = &mc;
 397        struct qla_hw_data *ha = vha->hw;
 398
 399        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
 400            "Entered %s.\n", __func__);
 401
 402        mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
 403
 404        mcp->mb[1] = 0;
 405        mcp->mb[2] = MSD(ha->init_cb_dma);
 406        mcp->mb[3] = LSD(ha->init_cb_dma);
 407
 408        mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
 409        mcp->in_mb = MBX_0;
 410        mcp->buf_size = size;
 411        mcp->flags = MBX_DMA_OUT;
 412        mcp->tov = MBX_TOV_SECONDS;
 413        rval = qlafx00_mailbox_command(vha, mcp);
 414
 415        if (rval != QLA_SUCCESS) {
 416                ql_dbg(ql_dbg_mbx, vha, 0x116d,
 417                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 418        } else {
 419                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
 420                    "Done %s.\n", __func__);
 421        }
 422        return rval;
 423}
 424
 425/*
 426 * qlafx00_mbx_reg_test
 427 */
 428static int
 429qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
 430{
 431        int rval;
 432        struct mbx_cmd_32 mc;
 433        struct mbx_cmd_32 *mcp = &mc;
 434
 435        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
 436            "Entered %s.\n", __func__);
 437
 438
 439        mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
 440        mcp->mb[1] = 0xAAAA;
 441        mcp->mb[2] = 0x5555;
 442        mcp->mb[3] = 0xAA55;
 443        mcp->mb[4] = 0x55AA;
 444        mcp->mb[5] = 0xA5A5;
 445        mcp->mb[6] = 0x5A5A;
 446        mcp->mb[7] = 0x2525;
 447        mcp->mb[8] = 0xBBBB;
 448        mcp->mb[9] = 0x6666;
 449        mcp->mb[10] = 0xBB66;
 450        mcp->mb[11] = 0x66BB;
 451        mcp->mb[12] = 0xB6B6;
 452        mcp->mb[13] = 0x6B6B;
 453        mcp->mb[14] = 0x3636;
 454        mcp->mb[15] = 0xCCCC;
 455
 456
 457        mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 458                        MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 459        mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 460                        MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 461        mcp->buf_size = 0;
 462        mcp->flags = MBX_DMA_OUT;
 463        mcp->tov = MBX_TOV_SECONDS;
 464        rval = qlafx00_mailbox_command(vha, mcp);
 465        if (rval == QLA_SUCCESS) {
 466                if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
 467                    mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
 468                        rval = QLA_FUNCTION_FAILED;
 469                if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
 470                    mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
 471                        rval = QLA_FUNCTION_FAILED;
 472                if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
 473                    mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
 474                        rval = QLA_FUNCTION_FAILED;
 475                if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
 476                    mcp->mb[31] != 0xCCCC)
 477                        rval = QLA_FUNCTION_FAILED;
 478        }
 479
 480        if (rval != QLA_SUCCESS) {
 481                ql_dbg(ql_dbg_mbx, vha, 0x1170,
 482                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 483        } else {
 484                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
 485                    "Done %s.\n", __func__);
 486        }
 487        return rval;
 488}
 489
 490/**
 491 * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 492 * @vha: HA context
 493 *
 494 * Returns 0 on success.
 495 */
 496int
 497qlafx00_pci_config(scsi_qla_host_t *vha)
 498{
 499        uint16_t w;
 500        struct qla_hw_data *ha = vha->hw;
 501
 502        pci_set_master(ha->pdev);
 503        pci_try_set_mwi(ha->pdev);
 504
 505        pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 506        w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 507        w &= ~PCI_COMMAND_INTX_DISABLE;
 508        pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 509
 510        /* PCIe -- adjust Maximum Read Request Size (2048). */
 511        if (pci_is_pcie(ha->pdev))
 512                pcie_set_readrq(ha->pdev, 2048);
 513
 514        ha->chip_revision = ha->pdev->revision;
 515
 516        return QLA_SUCCESS;
 517}
 518
 519/**
 520 * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 521 * @vha: HA context
 522 *
 523 */
 524static inline void
 525qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
 526{
 527        unsigned long flags = 0;
 528        struct qla_hw_data *ha = vha->hw;
 529        int i, core;
 530        uint32_t cnt;
 531        uint32_t reg_val;
 532
 533        spin_lock_irqsave(&ha->hardware_lock, flags);
 534
 535        QLAFX00_SET_HBA_SOC_REG(ha, 0x80004, 0);
 536        QLAFX00_SET_HBA_SOC_REG(ha, 0x82004, 0);
 537
 538        /* stop the XOR DMA engines */
 539        QLAFX00_SET_HBA_SOC_REG(ha, 0x60920, 0x02);
 540        QLAFX00_SET_HBA_SOC_REG(ha, 0x60924, 0x02);
 541        QLAFX00_SET_HBA_SOC_REG(ha, 0xf0920, 0x02);
 542        QLAFX00_SET_HBA_SOC_REG(ha, 0xf0924, 0x02);
 543
 544        /* stop the IDMA engines */
 545        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60840);
 546        reg_val &= ~(1<<12);
 547        QLAFX00_SET_HBA_SOC_REG(ha, 0x60840, reg_val);
 548
 549        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60844);
 550        reg_val &= ~(1<<12);
 551        QLAFX00_SET_HBA_SOC_REG(ha, 0x60844, reg_val);
 552
 553        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60848);
 554        reg_val &= ~(1<<12);
 555        QLAFX00_SET_HBA_SOC_REG(ha, 0x60848, reg_val);
 556
 557        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x6084C);
 558        reg_val &= ~(1<<12);
 559        QLAFX00_SET_HBA_SOC_REG(ha, 0x6084C, reg_val);
 560
 561        for (i = 0; i < 100000; i++) {
 562                if ((QLAFX00_GET_HBA_SOC_REG(ha, 0xd0000) & 0x10000000) == 0 &&
 563                    (QLAFX00_GET_HBA_SOC_REG(ha, 0x10600) & 0x1) == 0)
 564                        break;
 565                udelay(100);
 566        }
 567
 568        /* Set all 4 cores in reset */
 569        for (i = 0; i < 4; i++) {
 570                QLAFX00_SET_HBA_SOC_REG(ha,
 571                    (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
 572                QLAFX00_SET_HBA_SOC_REG(ha,
 573                    (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
 574        }
 575
 576        /* Reset all units in Fabric */
 577        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x011f0101));
 578
 579        /* */
 580        QLAFX00_SET_HBA_SOC_REG(ha, 0x10610, 1);
 581        QLAFX00_SET_HBA_SOC_REG(ha, 0x10600, 0);
 582
 583        /* Set all 4 core Memory Power Down Registers */
 584        for (i = 0; i < 5; i++) {
 585                QLAFX00_SET_HBA_SOC_REG(ha,
 586                    (SOC_PWR_MANAGEMENT_PWR_DOWN_REG + 4*i), (0x0));
 587        }
 588
 589        /* Reset all interrupt control registers */
 590        for (i = 0; i < 115; i++) {
 591                QLAFX00_SET_HBA_SOC_REG(ha,
 592                    (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
 593        }
 594
 595        /* Reset Timers control registers. per core */
 596        for (core = 0; core < 4; core++)
 597                for (i = 0; i < 8; i++)
 598                        QLAFX00_SET_HBA_SOC_REG(ha,
 599                            (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
 600
 601        /* Reset per core IRQ ack register */
 602        for (core = 0; core < 4; core++)
 603                QLAFX00_SET_HBA_SOC_REG(ha,
 604                    (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
 605
 606        /* Set Fabric control and config to defaults */
 607        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
 608        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
 609
 610        /* Kick in Fabric units */
 611        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
 612
 613        /* Kick in Core0 to start boot process */
 614        QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
 615
 616        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 617
 618        /* Wait 10secs for soft-reset to complete. */
 619        for (cnt = 10; cnt; cnt--) {
 620                msleep(1000);
 621                barrier();
 622        }
 623}
 624
 625/**
 626 * qlafx00_soft_reset() - Soft Reset ISPFx00.
 627 * @vha: HA context
 628 *
 629 * Returns 0 on success.
 630 */
 631int
 632qlafx00_soft_reset(scsi_qla_host_t *vha)
 633{
 634        struct qla_hw_data *ha = vha->hw;
 635        int rval = QLA_FUNCTION_FAILED;
 636
 637        if (unlikely(pci_channel_offline(ha->pdev) &&
 638            ha->flags.pci_channel_io_perm_failure))
 639                return rval;
 640
 641        ha->isp_ops->disable_intrs(ha);
 642        qlafx00_soc_cpu_reset(vha);
 643
 644        return QLA_SUCCESS;
 645}
 646
 647/**
 648 * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 649 * @vha: HA context
 650 *
 651 * Returns 0 on success.
 652 */
 653int
 654qlafx00_chip_diag(scsi_qla_host_t *vha)
 655{
 656        int rval = 0;
 657        struct qla_hw_data *ha = vha->hw;
 658        struct req_que *req = ha->req_q_map[0];
 659
 660        ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 661
 662        rval = qlafx00_mbx_reg_test(vha);
 663        if (rval) {
 664                ql_log(ql_log_warn, vha, 0x1165,
 665                    "Failed mailbox send register test\n");
 666        } else {
 667                /* Flag a successful rval */
 668                rval = QLA_SUCCESS;
 669        }
 670        return rval;
 671}
 672
 673void
 674qlafx00_config_rings(struct scsi_qla_host *vha)
 675{
 676        struct qla_hw_data *ha = vha->hw;
 677        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 678
 679        wrt_reg_dword(&reg->req_q_in, 0);
 680        wrt_reg_dword(&reg->req_q_out, 0);
 681
 682        wrt_reg_dword(&reg->rsp_q_in, 0);
 683        wrt_reg_dword(&reg->rsp_q_out, 0);
 684
 685        /* PCI posting */
 686        rd_reg_dword(&reg->rsp_q_out);
 687}
 688
 689char *
 690qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
 691{
 692        struct qla_hw_data *ha = vha->hw;
 693
 694        if (pci_is_pcie(ha->pdev))
 695                strlcpy(str, "PCIe iSA", str_len);
 696        return str;
 697}
 698
 699char *
 700qlafx00_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
 708void
 709qlafx00_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
 719void
 720qlafx00_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
 730int
 731qlafx00_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
 736int
 737qlafx00_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
 742int
 743qlafx00_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
 765int
 766qlafx00_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(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(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
 828iospace_error_exit:
 829        return -ENOMEM;
 830}
 831
 832static void
 833qlafx00_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
 858static int
 859qlafx00_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
 899static int
 900qlafx00_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 */
1063int
1064qlafx00_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
1117static int
1118qlafx00_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, 0x2089,
1142            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);
1213                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1214                                qla2x00_free_fcport(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        qla2x00_free_fcport(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 */
1247static int
1248qlafx00_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);
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                qla2x00_free_fcport(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 */
1318int
1319qlafx00_configure_devices(scsi_qla_host_t *vha)
1320{
1321        int  rval;
1322        unsigned long flags;
1323
1324        rval = QLA_SUCCESS;
1325
1326        flags = vha->dpc_flags;
1327
1328        ql_dbg(ql_dbg_disc, vha, 0x2090,
1329            "Configure devices -- dpc flags =0x%lx\n", flags);
1330
1331        rval = qlafx00_configure_all_targets(vha);
1332
1333        if (rval == QLA_SUCCESS) {
1334                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1335                        rval = QLA_FUNCTION_FAILED;
1336                } else {
1337                        atomic_set(&vha->loop_state, LOOP_READY);
1338                        ql_log(ql_log_info, vha, 0x2091,
1339                            "Device Ready\n");
1340                }
1341        }
1342
1343        if (rval) {
1344                ql_dbg(ql_dbg_disc, vha, 0x2092,
1345                    "%s *** FAILED ***.\n", __func__);
1346        } else {
1347                ql_dbg(ql_dbg_disc, vha, 0x2093,
1348                    "%s: exiting normally.\n", __func__);
1349        }
1350        return rval;
1351}
1352
1353static void
1354qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
1355{
1356        struct qla_hw_data *ha = vha->hw;
1357        fc_port_t *fcport;
1358
1359        vha->flags.online = 0;
1360        ha->mr.fw_hbt_en = 0;
1361
1362        if (!critemp) {
1363                ha->flags.chip_reset_done = 0;
1364                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1365                vha->qla_stats.total_isp_aborts++;
1366                ql_log(ql_log_info, vha, 0x013f,
1367                    "Performing ISP error recovery - ha = %p.\n", ha);
1368                ha->isp_ops->reset_chip(vha);
1369        }
1370
1371        if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1372                atomic_set(&vha->loop_state, LOOP_DOWN);
1373                atomic_set(&vha->loop_down_timer,
1374                    QLAFX00_LOOP_DOWN_TIME);
1375        } else {
1376                if (!atomic_read(&vha->loop_down_timer))
1377                        atomic_set(&vha->loop_down_timer,
1378                            QLAFX00_LOOP_DOWN_TIME);
1379        }
1380
1381        /* Clear all async request states across all VPs. */
1382        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1383                fcport->flags = 0;
1384                if (atomic_read(&fcport->state) == FCS_ONLINE)
1385                        qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1386        }
1387
1388        if (!ha->flags.eeh_busy) {
1389                if (critemp) {
1390                        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
1391                } else {
1392                        /* Requeue all commands in outstanding command list. */
1393                        qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1394                }
1395        }
1396
1397        qla2x00_free_irqs(vha);
1398        if (critemp)
1399                set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
1400        else
1401                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1402
1403        /* Clear the Interrupts */
1404        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1405
1406        ql_log(ql_log_info, vha, 0x0140,
1407            "%s Done done - ha=%p.\n", __func__, ha);
1408}
1409
1410/**
1411 * qlafx00_init_response_q_entries() - Initializes response queue entries.
1412 * @rsp: response queue
1413 *
1414 * Beginning of request ring has initialization control block already built
1415 * by nvram config routine.
1416 *
1417 * Returns 0 on success.
1418 */
1419void
1420qlafx00_init_response_q_entries(struct rsp_que *rsp)
1421{
1422        uint16_t cnt;
1423        response_t *pkt;
1424
1425        rsp->ring_ptr = rsp->ring;
1426        rsp->ring_index    = 0;
1427        rsp->status_srb = NULL;
1428        pkt = rsp->ring_ptr;
1429        for (cnt = 0; cnt < rsp->length; cnt++) {
1430                pkt->signature = RESPONSE_PROCESSED;
1431                wrt_reg_dword((void __force __iomem *)&pkt->signature,
1432                    RESPONSE_PROCESSED);
1433                pkt++;
1434        }
1435}
1436
1437int
1438qlafx00_rescan_isp(scsi_qla_host_t *vha)
1439{
1440        uint32_t status = QLA_FUNCTION_FAILED;
1441        struct qla_hw_data *ha = vha->hw;
1442        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1443        uint32_t aenmbx7;
1444
1445        qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1446
1447        aenmbx7 = rd_reg_dword(&reg->aenmailbox7);
1448        ha->mbx_intr_code = MSW(aenmbx7);
1449        ha->rqstq_intr_code = LSW(aenmbx7);
1450        ha->req_que_off = rd_reg_dword(&reg->aenmailbox1);
1451        ha->rsp_que_off = rd_reg_dword(&reg->aenmailbox3);
1452        ha->req_que_len = rd_reg_dword(&reg->aenmailbox5);
1453        ha->rsp_que_len = rd_reg_dword(&reg->aenmailbox6);
1454
1455        ql_dbg(ql_dbg_disc, vha, 0x2094,
1456            "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1457            " Req que offset 0x%x Rsp que offset 0x%x\n",
1458            ha->mbx_intr_code, ha->rqstq_intr_code,
1459            ha->req_que_off, ha->rsp_que_len);
1460
1461        /* Clear the Interrupts */
1462        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1463
1464        status = qla2x00_init_rings(vha);
1465        if (!status) {
1466                vha->flags.online = 1;
1467
1468                /* if no cable then assume it's good */
1469                if ((vha->device_flags & DFLG_NO_CABLE))
1470                        status = 0;
1471                /* Register system information */
1472                if (qlafx00_fx_disc(vha,
1473                    &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1474                        ql_dbg(ql_dbg_disc, vha, 0x2095,
1475                            "failed to register host info\n");
1476        }
1477        scsi_unblock_requests(vha->host);
1478        return status;
1479}
1480
1481void
1482qlafx00_timer_routine(scsi_qla_host_t *vha)
1483{
1484        struct qla_hw_data *ha = vha->hw;
1485        uint32_t fw_heart_beat;
1486        uint32_t aenmbx0;
1487        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1488        uint32_t tempc;
1489
1490        /* Check firmware health */
1491        if (ha->mr.fw_hbt_cnt)
1492                ha->mr.fw_hbt_cnt--;
1493        else {
1494                if ((!ha->flags.mr_reset_hdlr_active) &&
1495                    (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1496                    (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1497                    (ha->mr.fw_hbt_en)) {
1498                        fw_heart_beat = rd_reg_dword(&reg->fwheartbeat);
1499                        if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1500                                ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1501                                ha->mr.fw_hbt_miss_cnt = 0;
1502                        } else {
1503                                ha->mr.fw_hbt_miss_cnt++;
1504                                if (ha->mr.fw_hbt_miss_cnt ==
1505                                    QLAFX00_HEARTBEAT_MISS_CNT) {
1506                                        set_bit(ISP_ABORT_NEEDED,
1507                                            &vha->dpc_flags);
1508                                        qla2xxx_wake_dpc(vha);
1509                                        ha->mr.fw_hbt_miss_cnt = 0;
1510                                }
1511                        }
1512                }
1513                ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1514        }
1515
1516        if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1517                /* Reset recovery to be performed in timer routine */
1518                aenmbx0 = rd_reg_dword(&reg->aenmailbox0);
1519                if (ha->mr.fw_reset_timer_exp) {
1520                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1521                        qla2xxx_wake_dpc(vha);
1522                        ha->mr.fw_reset_timer_exp = 0;
1523                } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1524                        /* Wake up DPC to rescan the targets */
1525                        set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1526                        clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1527                        qla2xxx_wake_dpc(vha);
1528                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1529                } else if ((aenmbx0 == MBA_FW_STARTING) &&
1530                    (!ha->mr.fw_hbt_en)) {
1531                        ha->mr.fw_hbt_en = 1;
1532                } else if (!ha->mr.fw_reset_timer_tick) {
1533                        if (aenmbx0 == ha->mr.old_aenmbx0_state)
1534                                ha->mr.fw_reset_timer_exp = 1;
1535                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1536                } else if (aenmbx0 == 0xFFFFFFFF) {
1537                        uint32_t data0, data1;
1538
1539                        data0 = QLAFX00_RD_REG(ha,
1540                            QLAFX00_BAR1_BASE_ADDR_REG);
1541                        data1 = QLAFX00_RD_REG(ha,
1542                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1543
1544                        data0 &= 0xffff0000;
1545                        data1 &= 0x0000ffff;
1546
1547                        QLAFX00_WR_REG(ha,
1548                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1549                            (data0 | data1));
1550                } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1551                        ha->mr.fw_reset_timer_tick =
1552                            QLAFX00_MAX_RESET_INTERVAL;
1553                } else if (aenmbx0 == MBA_FW_RESET_FCT) {
1554                        ha->mr.fw_reset_timer_tick =
1555                            QLAFX00_MAX_RESET_INTERVAL;
1556                }
1557                if (ha->mr.old_aenmbx0_state != aenmbx0) {
1558                        ha->mr.old_aenmbx0_state = aenmbx0;
1559                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1560                }
1561                ha->mr.fw_reset_timer_tick--;
1562        }
1563        if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
1564                /*
1565                 * Critical temperature recovery to be
1566                 * performed in timer routine
1567                 */
1568                if (ha->mr.fw_critemp_timer_tick == 0) {
1569                        tempc = QLAFX00_GET_TEMPERATURE(ha);
1570                        ql_dbg(ql_dbg_timer, vha, 0x6012,
1571                            "ISPFx00(%s): Critical temp timer, "
1572                            "current SOC temperature: %d\n",
1573                            __func__, tempc);
1574                        if (tempc < ha->mr.critical_temperature) {
1575                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1576                                clear_bit(FX00_CRITEMP_RECOVERY,
1577                                    &vha->dpc_flags);
1578                                qla2xxx_wake_dpc(vha);
1579                        }
1580                        ha->mr.fw_critemp_timer_tick =
1581                            QLAFX00_CRITEMP_INTERVAL;
1582                } else {
1583                        ha->mr.fw_critemp_timer_tick--;
1584                }
1585        }
1586        if (ha->mr.host_info_resend) {
1587                /*
1588                 * Incomplete host info might be sent to firmware
1589                 * durinng system boot - info should be resend
1590                 */
1591                if (ha->mr.hinfo_resend_timer_tick == 0) {
1592                        ha->mr.host_info_resend = false;
1593                        set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
1594                        ha->mr.hinfo_resend_timer_tick =
1595                            QLAFX00_HINFO_RESEND_INTERVAL;
1596                        qla2xxx_wake_dpc(vha);
1597                } else {
1598                        ha->mr.hinfo_resend_timer_tick--;
1599                }
1600        }
1601
1602}
1603
1604/*
1605 *  qlfx00a_reset_initialize
1606 *      Re-initialize after a iSA device reset.
1607 *
1608 * Input:
1609 *      ha  = adapter block pointer.
1610 *
1611 * Returns:
1612 *      0 = success
1613 */
1614int
1615qlafx00_reset_initialize(scsi_qla_host_t *vha)
1616{
1617        struct qla_hw_data *ha = vha->hw;
1618
1619        if (vha->device_flags & DFLG_DEV_FAILED) {
1620                ql_dbg(ql_dbg_init, vha, 0x0142,
1621                    "Device in failed state\n");
1622                return QLA_SUCCESS;
1623        }
1624
1625        ha->flags.mr_reset_hdlr_active = 1;
1626
1627        if (vha->flags.online) {
1628                scsi_block_requests(vha->host);
1629                qlafx00_abort_isp_cleanup(vha, false);
1630        }
1631
1632        ql_log(ql_log_info, vha, 0x0143,
1633            "(%s): succeeded.\n", __func__);
1634        ha->flags.mr_reset_hdlr_active = 0;
1635        return QLA_SUCCESS;
1636}
1637
1638/*
1639 *  qlafx00_abort_isp
1640 *      Resets ISP and aborts all outstanding commands.
1641 *
1642 * Input:
1643 *      ha  = adapter block pointer.
1644 *
1645 * Returns:
1646 *      0 = success
1647 */
1648int
1649qlafx00_abort_isp(scsi_qla_host_t *vha)
1650{
1651        struct qla_hw_data *ha = vha->hw;
1652
1653        if (vha->flags.online) {
1654                if (unlikely(pci_channel_offline(ha->pdev) &&
1655                    ha->flags.pci_channel_io_perm_failure)) {
1656                        clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1657                        return QLA_SUCCESS;
1658                }
1659
1660                scsi_block_requests(vha->host);
1661                qlafx00_abort_isp_cleanup(vha, false);
1662        } else {
1663                scsi_block_requests(vha->host);
1664                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1665                vha->qla_stats.total_isp_aborts++;
1666                ha->isp_ops->reset_chip(vha);
1667                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1668                /* Clear the Interrupts */
1669                QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1670        }
1671
1672        ql_log(ql_log_info, vha, 0x0145,
1673            "(%s): succeeded.\n", __func__);
1674
1675        return QLA_SUCCESS;
1676}
1677
1678static inline fc_port_t*
1679qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1680{
1681        fc_port_t       *fcport;
1682
1683        /* Check for matching device in remote port list. */
1684        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1685                if (fcport->tgt_id == tgt_id) {
1686                        ql_dbg(ql_dbg_async, vha, 0x5072,
1687                            "Matching fcport(%p) found with TGT-ID: 0x%x "
1688                            "and Remote TGT_ID: 0x%x\n",
1689                            fcport, fcport->tgt_id, tgt_id);
1690                        return fcport;
1691                }
1692        }
1693        return NULL;
1694}
1695
1696static void
1697qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1698{
1699        fc_port_t       *fcport;
1700
1701        ql_log(ql_log_info, vha, 0x5073,
1702            "Detach TGT-ID: 0x%x\n", tgt_id);
1703
1704        fcport = qlafx00_get_fcport(vha, tgt_id);
1705        if (!fcport)
1706                return;
1707
1708        qla2x00_mark_device_lost(vha, fcport, 0);
1709
1710        return;
1711}
1712
1713void
1714qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1715{
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);
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
1768static void
1769qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1770{
1771        u64 port_name = 0, node_name = 0;
1772
1773        port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1774        node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1775
1776        fc_host_node_name(vha->host) = node_name;
1777        fc_host_port_name(vha->host) = port_name;
1778        if (!pinfo->port_type)
1779                vha->hw->current_topology = ISP_CFG_F;
1780        if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1781                atomic_set(&vha->loop_state, LOOP_READY);
1782        else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1783                atomic_set(&vha->loop_state, LOOP_DOWN);
1784        vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1785}
1786
1787static void
1788qla2x00_fxdisc_iocb_timeout(void *data)
1789{
1790        srb_t *sp = data;
1791        struct srb_iocb *lio = &sp->u.iocb_cmd;
1792
1793        complete(&lio->u.fxiocb.fxiocb_comp);
1794}
1795
1796static void qla2x00_fxdisc_sp_done(srb_t *sp, int res)
1797{
1798        struct srb_iocb *lio = &sp->u.iocb_cmd;
1799
1800        complete(&lio->u.fxiocb.fxiocb_comp);
1801}
1802
1803int
1804qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
1805{
1806        srb_t *sp;
1807        struct srb_iocb *fdisc;
1808        int rval = QLA_FUNCTION_FAILED;
1809        struct qla_hw_data *ha = vha->hw;
1810        struct host_system_info *phost_info;
1811        struct register_host_info *preg_hsi;
1812        struct new_utsname *p_sysid = NULL;
1813
1814        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1815        if (!sp)
1816                goto done;
1817
1818        sp->type = SRB_FXIOCB_DCMD;
1819        sp->name = "fxdisc";
1820
1821        fdisc = &sp->u.iocb_cmd;
1822        fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1823        qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1824
1825        switch (fx_type) {
1826        case FXDISC_GET_CONFIG_INFO:
1827        fdisc->u.fxiocb.flags =
1828                    SRB_FXDISC_RESP_DMA_VALID;
1829                fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1830                break;
1831        case FXDISC_GET_PORT_INFO:
1832                fdisc->u.fxiocb.flags =
1833                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1834                fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1835                fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
1836                break;
1837        case FXDISC_GET_TGT_NODE_INFO:
1838                fdisc->u.fxiocb.flags =
1839                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1840                fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1841                fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
1842                break;
1843        case FXDISC_GET_TGT_NODE_LIST:
1844                fdisc->u.fxiocb.flags =
1845                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1846                fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1847                break;
1848        case FXDISC_REG_HOST_INFO:
1849                fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1850                fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1851                p_sysid = utsname();
1852                if (!p_sysid) {
1853                        ql_log(ql_log_warn, vha, 0x303c,
1854                            "Not able to get the system information\n");
1855                        goto done_free_sp;
1856                }
1857                break;
1858        case FXDISC_ABORT_IOCTL:
1859        default:
1860                break;
1861        }
1862
1863        if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1864                fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1865                    fdisc->u.fxiocb.req_len,
1866                    &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1867                if (!fdisc->u.fxiocb.req_addr)
1868                        goto done_free_sp;
1869
1870                if (fx_type == FXDISC_REG_HOST_INFO) {
1871                        preg_hsi = (struct register_host_info *)
1872                                fdisc->u.fxiocb.req_addr;
1873                        phost_info = &preg_hsi->hsi;
1874                        memset(preg_hsi, 0, sizeof(struct register_host_info));
1875                        phost_info->os_type = OS_TYPE_LINUX;
1876                        strlcpy(phost_info->sysname, p_sysid->sysname,
1877                                sizeof(phost_info->sysname));
1878                        strlcpy(phost_info->nodename, p_sysid->nodename,
1879                                sizeof(phost_info->nodename));
1880                        if (!strcmp(phost_info->nodename, "(none)"))
1881                                ha->mr.host_info_resend = true;
1882                        strlcpy(phost_info->release, p_sysid->release,
1883                                sizeof(phost_info->release));
1884                        strlcpy(phost_info->version, p_sysid->version,
1885                                sizeof(phost_info->version));
1886                        strlcpy(phost_info->machine, p_sysid->machine,
1887                                sizeof(phost_info->machine));
1888                        strlcpy(phost_info->domainname, p_sysid->domainname,
1889                                sizeof(phost_info->domainname));
1890                        strlcpy(phost_info->hostdriver, QLA2XXX_VERSION,
1891                                sizeof(phost_info->hostdriver));
1892                        preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
1893                        ql_dbg(ql_dbg_init, vha, 0x0149,
1894                            "ISP%04X: Host registration with firmware\n",
1895                            ha->pdev->device);
1896                        ql_dbg(ql_dbg_init, vha, 0x014a,
1897                            "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1898                            phost_info->os_type,
1899                            phost_info->sysname,
1900                            phost_info->nodename);
1901                        ql_dbg(ql_dbg_init, vha, 0x014b,
1902                            "release = '%s', version = '%s'\n",
1903                            phost_info->release,
1904                            phost_info->version);
1905                        ql_dbg(ql_dbg_init, vha, 0x014c,
1906                            "machine = '%s' "
1907                            "domainname = '%s', hostdriver = '%s'\n",
1908                            phost_info->machine,
1909                            phost_info->domainname,
1910                            phost_info->hostdriver);
1911                        ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1912                            phost_info, sizeof(*phost_info));
1913                }
1914        }
1915
1916        if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1917                fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1918                    fdisc->u.fxiocb.rsp_len,
1919                    &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1920                if (!fdisc->u.fxiocb.rsp_addr)
1921                        goto done_unmap_req;
1922        }
1923
1924        fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1925        sp->done = qla2x00_fxdisc_sp_done;
1926
1927        rval = qla2x00_start_sp(sp);
1928        if (rval != QLA_SUCCESS)
1929                goto done_unmap_dma;
1930
1931        wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1932
1933        if (fx_type == FXDISC_GET_CONFIG_INFO) {
1934                struct config_info_data *pinfo =
1935                    (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1936                strlcpy(vha->hw->model_number, pinfo->model_num,
1937                        ARRAY_SIZE(vha->hw->model_number));
1938                strlcpy(vha->hw->model_desc, pinfo->model_description,
1939                        ARRAY_SIZE(vha->hw->model_desc));
1940                memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1941                    sizeof(vha->hw->mr.symbolic_name));
1942                memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1943                    sizeof(vha->hw->mr.serial_num));
1944                memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1945                    sizeof(vha->hw->mr.hw_version));
1946                memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1947                    sizeof(vha->hw->mr.fw_version));
1948                strim(vha->hw->mr.fw_version);
1949                memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1950                    sizeof(vha->hw->mr.uboot_version));
1951                memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1952                    sizeof(vha->hw->mr.fru_serial_num));
1953                vha->hw->mr.critical_temperature =
1954                    (pinfo->nominal_temp_value) ?
1955                    pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
1956                ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
1957                    QLAFX00_EXTENDED_IO_EN_MASK) != 0;
1958        } else if (fx_type == FXDISC_GET_PORT_INFO) {
1959                struct port_info_data *pinfo =
1960                    (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1961                memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1962                memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1963                vha->d_id.b.domain = pinfo->port_id[0];
1964                vha->d_id.b.area = pinfo->port_id[1];
1965                vha->d_id.b.al_pa = pinfo->port_id[2];
1966                qlafx00_update_host_attr(vha, pinfo);
1967                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1968                    pinfo, 16);
1969        } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1970                struct qlafx00_tgt_node_info *pinfo =
1971                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1972                memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1973                memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1974                fcport->port_type = FCT_TARGET;
1975                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1976                    pinfo, 16);
1977        } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1978                struct qlafx00_tgt_node_info *pinfo =
1979                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1980                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1981                    pinfo, 16);
1982                memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1983        } else if (fx_type == FXDISC_ABORT_IOCTL)
1984                fdisc->u.fxiocb.result =
1985                    (fdisc->u.fxiocb.result ==
1986                        cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
1987                    cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
1988
1989        rval = le32_to_cpu(fdisc->u.fxiocb.result);
1990
1991done_unmap_dma:
1992        if (fdisc->u.fxiocb.rsp_addr)
1993                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1994                    fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1995
1996done_unmap_req:
1997        if (fdisc->u.fxiocb.req_addr)
1998                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
1999                    fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
2000done_free_sp:
2001        sp->free(sp);
2002done:
2003        return rval;
2004}
2005
2006/*
2007 * qlafx00_initialize_adapter
2008 *      Initialize board.
2009 *
2010 * Input:
2011 *      ha = adapter block pointer.
2012 *
2013 * Returns:
2014 *      0 = success
2015 */
2016int
2017qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2018{
2019        int     rval;
2020        struct qla_hw_data *ha = vha->hw;
2021        uint32_t tempc;
2022
2023        /* Clear adapter flags. */
2024        vha->flags.online = 0;
2025        ha->flags.chip_reset_done = 0;
2026        vha->flags.reset_active = 0;
2027        ha->flags.pci_channel_io_perm_failure = 0;
2028        ha->flags.eeh_busy = 0;
2029        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2030        atomic_set(&vha->loop_state, LOOP_DOWN);
2031        vha->device_flags = DFLG_NO_CABLE;
2032        vha->dpc_flags = 0;
2033        vha->flags.management_server_logged_in = 0;
2034        ha->isp_abort_cnt = 0;
2035        ha->beacon_blink_led = 0;
2036
2037        set_bit(0, ha->req_qid_map);
2038        set_bit(0, ha->rsp_qid_map);
2039
2040        ql_dbg(ql_dbg_init, vha, 0x0147,
2041            "Configuring PCI space...\n");
2042
2043        rval = ha->isp_ops->pci_config(vha);
2044        if (rval) {
2045                ql_log(ql_log_warn, vha, 0x0148,
2046                    "Unable to configure PCI space.\n");
2047                return rval;
2048        }
2049
2050        rval = qlafx00_init_fw_ready(vha);
2051        if (rval != QLA_SUCCESS)
2052                return rval;
2053
2054        qlafx00_save_queue_ptrs(vha);
2055
2056        rval = qlafx00_config_queues(vha);
2057        if (rval != QLA_SUCCESS)
2058                return rval;
2059
2060        /*
2061         * Allocate the array of outstanding commands
2062         * now that we know the firmware resources.
2063         */
2064        rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2065        if (rval != QLA_SUCCESS)
2066                return rval;
2067
2068        rval = qla2x00_init_rings(vha);
2069        ha->flags.chip_reset_done = 1;
2070
2071        tempc = QLAFX00_GET_TEMPERATURE(ha);
2072        ql_dbg(ql_dbg_init, vha, 0x0152,
2073            "ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
2074            __func__, tempc);
2075
2076        return rval;
2077}
2078
2079uint32_t
2080qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2081                      char *buf)
2082{
2083        scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2084        int rval = QLA_FUNCTION_FAILED;
2085        uint32_t state[1];
2086
2087        if (qla2x00_reset_active(vha))
2088                ql_log(ql_log_warn, vha, 0x70ce,
2089                    "ISP reset active.\n");
2090        else if (!vha->hw->flags.eeh_busy) {
2091                rval = qlafx00_get_firmware_state(vha, state);
2092        }
2093        if (rval != QLA_SUCCESS)
2094                memset(state, -1, sizeof(state));
2095
2096        return state[0];
2097}
2098
2099void
2100qlafx00_get_host_speed(struct Scsi_Host *shost)
2101{
2102        struct qla_hw_data *ha = ((struct scsi_qla_host *)
2103                                        (shost_priv(shost)))->hw;
2104        u32 speed = FC_PORTSPEED_UNKNOWN;
2105
2106        switch (ha->link_data_rate) {
2107        case QLAFX00_PORT_SPEED_2G:
2108                speed = FC_PORTSPEED_2GBIT;
2109                break;
2110        case QLAFX00_PORT_SPEED_4G:
2111                speed = FC_PORTSPEED_4GBIT;
2112                break;
2113        case QLAFX00_PORT_SPEED_8G:
2114                speed = FC_PORTSPEED_8GBIT;
2115                break;
2116        case QLAFX00_PORT_SPEED_10G:
2117                speed = FC_PORTSPEED_10GBIT;
2118                break;
2119        }
2120        fc_host_speed(shost) = speed;
2121}
2122
2123/** QLAFX00 specific ISR implementation functions */
2124
2125static inline void
2126qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2127                     uint32_t sense_len, struct rsp_que *rsp, int res)
2128{
2129        struct scsi_qla_host *vha = sp->vha;
2130        struct scsi_cmnd *cp = GET_CMD_SP(sp);
2131        uint32_t track_sense_len;
2132
2133        SET_FW_SENSE_LEN(sp, sense_len);
2134
2135        if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2136                sense_len = SCSI_SENSE_BUFFERSIZE;
2137
2138        SET_CMD_SENSE_LEN(sp, sense_len);
2139        SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2140        track_sense_len = sense_len;
2141
2142        if (sense_len > par_sense_len)
2143                sense_len = par_sense_len;
2144
2145        memcpy(cp->sense_buffer, sense_data, sense_len);
2146
2147        SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2148
2149        SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2150        track_sense_len -= sense_len;
2151        SET_CMD_SENSE_LEN(sp, track_sense_len);
2152
2153        ql_dbg(ql_dbg_io, vha, 0x304d,
2154            "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2155            sense_len, par_sense_len, track_sense_len);
2156        if (GET_FW_SENSE_LEN(sp) > 0) {
2157                rsp->status_srb = sp;
2158                cp->result = res;
2159        }
2160
2161        if (sense_len) {
2162                ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2163                    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2164                    sp->vha->host_no, cp->device->id, cp->device->lun,
2165                    cp);
2166                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2167                    cp->sense_buffer, sense_len);
2168        }
2169}
2170
2171static void
2172qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2173                      struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2174                      __le16 sstatus, __le16 cpstatus)
2175{
2176        struct srb_iocb *tmf;
2177
2178        tmf = &sp->u.iocb_cmd;
2179        if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
2180            (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
2181                cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2182        tmf->u.tmf.comp_status = cpstatus;
2183        sp->done(sp, 0);
2184}
2185
2186static void
2187qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2188                         struct abort_iocb_entry_fx00 *pkt)
2189{
2190        const char func[] = "ABT_IOCB";
2191        srb_t *sp;
2192        struct srb_iocb *abt;
2193
2194        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2195        if (!sp)
2196                return;
2197
2198        abt = &sp->u.iocb_cmd;
2199        abt->u.abt.comp_status = pkt->tgt_id_sts;
2200        sp->done(sp, 0);
2201}
2202
2203static void
2204qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2205                         struct ioctl_iocb_entry_fx00 *pkt)
2206{
2207        const char func[] = "IOSB_IOCB";
2208        srb_t *sp;
2209        struct bsg_job *bsg_job;
2210        struct fc_bsg_reply *bsg_reply;
2211        struct srb_iocb *iocb_job;
2212        int res = 0;
2213        struct qla_mt_iocb_rsp_fx00 fstatus;
2214        uint8_t *fw_sts_ptr;
2215
2216        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2217        if (!sp)
2218                return;
2219
2220        if (sp->type == SRB_FXIOCB_DCMD) {
2221                iocb_job = &sp->u.iocb_cmd;
2222                iocb_job->u.fxiocb.seq_number = pkt->seq_no;
2223                iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
2224                iocb_job->u.fxiocb.result = pkt->status;
2225                if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2226                        iocb_job->u.fxiocb.req_data =
2227                            pkt->dataword_r;
2228        } else {
2229                bsg_job = sp->u.bsg_job;
2230                bsg_reply = bsg_job->reply;
2231
2232                memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2233
2234                fstatus.reserved_1 = pkt->reserved_0;
2235                fstatus.func_type = pkt->comp_func_num;
2236                fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2237                fstatus.ioctl_data = pkt->dataword_r;
2238                fstatus.adapid = pkt->adapid;
2239                fstatus.reserved_2 = pkt->dataword_r_extra;
2240                fstatus.res_count = pkt->residuallen;
2241                fstatus.status = pkt->status;
2242                fstatus.seq_number = pkt->seq_no;
2243                memcpy(fstatus.reserved_3,
2244                    pkt->reserved_2, 20 * sizeof(uint8_t));
2245
2246                fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
2247
2248                memcpy(fw_sts_ptr, &fstatus, sizeof(fstatus));
2249                bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2250                        sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2251
2252                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2253                    sp->vha, 0x5080, pkt, sizeof(*pkt));
2254
2255                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2256                    sp->vha, 0x5074,
2257                    fw_sts_ptr, sizeof(fstatus));
2258
2259                res = bsg_reply->result = DID_OK << 16;
2260                bsg_reply->reply_payload_rcv_len =
2261                    bsg_job->reply_payload.payload_len;
2262        }
2263        sp->done(sp, res);
2264}
2265
2266/**
2267 * qlafx00_status_entry() - Process a Status IOCB entry.
2268 * @vha: SCSI driver HA context
2269 * @rsp: response queue
2270 * @pkt: Entry pointer
2271 */
2272static void
2273qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2274{
2275        srb_t           *sp;
2276        fc_port_t       *fcport;
2277        struct scsi_cmnd *cp;
2278        struct sts_entry_fx00 *sts;
2279        __le16          comp_status;
2280        __le16          scsi_status;
2281        __le16          lscsi_status;
2282        int32_t         resid;
2283        uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2284            fw_resid_len;
2285        uint8_t         *rsp_info = NULL, *sense_data = NULL;
2286        struct qla_hw_data *ha = vha->hw;
2287        uint32_t hindex, handle;
2288        uint16_t que;
2289        struct req_que *req;
2290        int logit = 1;
2291        int res = 0;
2292
2293        sts = (struct sts_entry_fx00 *) pkt;
2294
2295        comp_status = sts->comp_status;
2296        scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2297        hindex = sts->handle;
2298        handle = LSW(hindex);
2299
2300        que = MSW(hindex);
2301        req = ha->req_q_map[que];
2302
2303        /* Validate handle. */
2304        if (handle < req->num_outstanding_cmds)
2305                sp = req->outstanding_cmds[handle];
2306        else
2307                sp = NULL;
2308
2309        if (sp == NULL) {
2310                ql_dbg(ql_dbg_io, vha, 0x3034,
2311                    "Invalid status handle (0x%x).\n", handle);
2312
2313                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2314                qla2xxx_wake_dpc(vha);
2315                return;
2316        }
2317
2318        if (sp->type == SRB_TM_CMD) {
2319                req->outstanding_cmds[handle] = NULL;
2320                qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2321                    scsi_status, comp_status);
2322                return;
2323        }
2324
2325        /* Fast path completion. */
2326        if (comp_status == CS_COMPLETE && scsi_status == 0) {
2327                qla2x00_process_completed_request(vha, req, handle);
2328                return;
2329        }
2330
2331        req->outstanding_cmds[handle] = NULL;
2332        cp = GET_CMD_SP(sp);
2333        if (cp == NULL) {
2334                ql_dbg(ql_dbg_io, vha, 0x3048,
2335                    "Command already returned (0x%x/%p).\n",
2336                    handle, sp);
2337
2338                return;
2339        }
2340
2341        lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2342
2343        fcport = sp->fcport;
2344
2345        sense_len = par_sense_len = rsp_info_len = resid_len =
2346                fw_resid_len = 0;
2347        if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
2348                sense_len = sts->sense_len;
2349        if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2350            | (uint16_t)SS_RESIDUAL_OVER)))
2351                resid_len = le32_to_cpu(sts->residual_len);
2352        if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2353                fw_resid_len = le32_to_cpu(sts->residual_len);
2354        rsp_info = sense_data = sts->data;
2355        par_sense_len = sizeof(sts->data);
2356
2357        /* Check for overrun. */
2358        if (comp_status == CS_COMPLETE &&
2359            scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
2360                comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2361
2362        /*
2363         * Based on Host and scsi status generate status code for Linux
2364         */
2365        switch (le16_to_cpu(comp_status)) {
2366        case CS_COMPLETE:
2367        case CS_QUEUE_FULL:
2368                if (scsi_status == 0) {
2369                        res = DID_OK << 16;
2370                        break;
2371                }
2372                if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2373                    | (uint16_t)SS_RESIDUAL_OVER))) {
2374                        resid = resid_len;
2375                        scsi_set_resid(cp, resid);
2376
2377                        if (!lscsi_status &&
2378                            ((unsigned)(scsi_bufflen(cp) - resid) <
2379                             cp->underflow)) {
2380                                ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2381                                    "Mid-layer underflow "
2382                                    "detected (0x%x of 0x%x bytes).\n",
2383                                    resid, scsi_bufflen(cp));
2384
2385                                res = DID_ERROR << 16;
2386                                break;
2387                        }
2388                }
2389                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2390
2391                if (lscsi_status ==
2392                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2393                        ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2394                            "QUEUE FULL detected.\n");
2395                        break;
2396                }
2397                logit = 0;
2398                if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2399                        break;
2400
2401                memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2402                if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2403                        break;
2404
2405                qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2406                    rsp, res);
2407                break;
2408
2409        case CS_DATA_UNDERRUN:
2410                /* Use F/W calculated residual length. */
2411                if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2412                        resid = fw_resid_len;
2413                else
2414                        resid = resid_len;
2415                scsi_set_resid(cp, resid);
2416                if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2417                        if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2418                            && fw_resid_len != resid_len) {
2419                                ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2420                                    "Dropped frame(s) detected "
2421                                    "(0x%x of 0x%x bytes).\n",
2422                                    resid, scsi_bufflen(cp));
2423
2424                                res = DID_ERROR << 16 |
2425                                    le16_to_cpu(lscsi_status);
2426                                goto check_scsi_status;
2427                        }
2428
2429                        if (!lscsi_status &&
2430                            ((unsigned)(scsi_bufflen(cp) - resid) <
2431                            cp->underflow)) {
2432                                ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2433                                    "Mid-layer underflow "
2434                                    "detected (0x%x of 0x%x bytes, "
2435                                    "cp->underflow: 0x%x).\n",
2436                                    resid, scsi_bufflen(cp), cp->underflow);
2437
2438                                res = DID_ERROR << 16;
2439                                break;
2440                        }
2441                } else if (lscsi_status !=
2442                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
2443                    lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2444                        /*
2445                         * scsi status of task set and busy are considered
2446                         * to be task not completed.
2447                         */
2448
2449                        ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2450                            "Dropped frame(s) detected (0x%x "
2451                            "of 0x%x bytes).\n", resid,
2452                            scsi_bufflen(cp));
2453
2454                        res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2455                        goto check_scsi_status;
2456                } else {
2457                        ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2458                            "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2459                            scsi_status, lscsi_status);
2460                }
2461
2462                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2463                logit = 0;
2464
2465check_scsi_status:
2466                /*
2467                 * Check to see if SCSI Status is non zero. If so report SCSI
2468                 * Status.
2469                 */
2470                if (lscsi_status != 0) {
2471                        if (lscsi_status ==
2472                            cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2473                                ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2474                                    "QUEUE FULL detected.\n");
2475                                logit = 1;
2476                                break;
2477                        }
2478                        if (lscsi_status !=
2479                            cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2480                                break;
2481
2482                        memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2483                        if (!(scsi_status &
2484                            cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2485                                break;
2486
2487                        qlafx00_handle_sense(sp, sense_data, par_sense_len,
2488                            sense_len, rsp, res);
2489                }
2490                break;
2491
2492        case CS_PORT_LOGGED_OUT:
2493        case CS_PORT_CONFIG_CHG:
2494        case CS_PORT_BUSY:
2495        case CS_INCOMPLETE:
2496        case CS_PORT_UNAVAILABLE:
2497        case CS_TIMEOUT:
2498        case CS_RESET:
2499
2500                /*
2501                 * We are going to have the fc class block the rport
2502                 * while we try to recover so instruct the mid layer
2503                 * to requeue until the class decides how to handle this.
2504                 */
2505                res = DID_TRANSPORT_DISRUPTED << 16;
2506
2507                ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2508                    "Port down status: port-state=0x%x.\n",
2509                    atomic_read(&fcport->state));
2510
2511                if (atomic_read(&fcport->state) == FCS_ONLINE)
2512                        qla2x00_mark_device_lost(fcport->vha, fcport, 1);
2513                break;
2514
2515        case CS_ABORTED:
2516                res = DID_RESET << 16;
2517                break;
2518
2519        default:
2520                res = DID_ERROR << 16;
2521                break;
2522        }
2523
2524        if (logit)
2525                ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2526                    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2527                    "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
2528                    "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
2529                    "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2530                    comp_status, scsi_status, res, vha->host_no,
2531                    cp->device->id, cp->device->lun, fcport->tgt_id,
2532                    lscsi_status, cp->cmnd, scsi_bufflen(cp),
2533                    rsp_info, resid_len, fw_resid_len, sense_len,
2534                    par_sense_len, rsp_info_len);
2535
2536        if (rsp->status_srb == NULL)
2537                sp->done(sp, res);
2538        else
2539                WARN_ON_ONCE(true);
2540}
2541
2542/**
2543 * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2544 * @rsp: response queue
2545 * @pkt: Entry pointer
2546 *
2547 * Extended sense data.
2548 */
2549static void
2550qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2551{
2552        uint8_t sense_sz = 0;
2553        struct qla_hw_data *ha = rsp->hw;
2554        struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2555        srb_t *sp = rsp->status_srb;
2556        struct scsi_cmnd *cp;
2557        uint32_t sense_len;
2558        uint8_t *sense_ptr;
2559
2560        if (!sp) {
2561                ql_dbg(ql_dbg_io, vha, 0x3037,
2562                    "no SP, sp = %p\n", sp);
2563                return;
2564        }
2565
2566        if (!GET_FW_SENSE_LEN(sp)) {
2567                ql_dbg(ql_dbg_io, vha, 0x304b,
2568                    "no fw sense data, sp = %p\n", sp);
2569                return;
2570        }
2571        cp = GET_CMD_SP(sp);
2572        if (cp == NULL) {
2573                ql_log(ql_log_warn, vha, 0x303b,
2574                    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2575
2576                rsp->status_srb = NULL;
2577                return;
2578        }
2579
2580        if (!GET_CMD_SENSE_LEN(sp)) {
2581                ql_dbg(ql_dbg_io, vha, 0x304c,
2582                    "no sense data, sp = %p\n", sp);
2583        } else {
2584                sense_len = GET_CMD_SENSE_LEN(sp);
2585                sense_ptr = GET_CMD_SENSE_PTR(sp);
2586                ql_dbg(ql_dbg_io, vha, 0x304f,
2587                    "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2588                    sp, sense_len, sense_ptr);
2589
2590                if (sense_len > sizeof(pkt->data))
2591                        sense_sz = sizeof(pkt->data);
2592                else
2593                        sense_sz = sense_len;
2594
2595                /* Move sense data. */
2596                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2597                    pkt, sizeof(*pkt));
2598                memcpy(sense_ptr, pkt->data, sense_sz);
2599                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2600                    sense_ptr, sense_sz);
2601
2602                sense_len -= sense_sz;
2603                sense_ptr += sense_sz;
2604
2605                SET_CMD_SENSE_PTR(sp, sense_ptr);
2606                SET_CMD_SENSE_LEN(sp, sense_len);
2607        }
2608        sense_len = GET_FW_SENSE_LEN(sp);
2609        sense_len = (sense_len > sizeof(pkt->data)) ?
2610            (sense_len - sizeof(pkt->data)) : 0;
2611        SET_FW_SENSE_LEN(sp, sense_len);
2612
2613        /* Place command on done queue. */
2614        if (sense_len == 0) {
2615                rsp->status_srb = NULL;
2616                sp->done(sp, cp->result);
2617        } else {
2618                WARN_ON_ONCE(true);
2619        }
2620}
2621
2622/**
2623 * qlafx00_multistatus_entry() - Process Multi response queue entries.
2624 * @vha: SCSI driver HA context
2625 * @rsp: response queue
2626 * @pkt: received packet
2627 */
2628static void
2629qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2630        struct rsp_que *rsp, void *pkt)
2631{
2632        srb_t           *sp;
2633        struct multi_sts_entry_fx00 *stsmfx;
2634        struct qla_hw_data *ha = vha->hw;
2635        uint32_t handle, hindex, handle_count, i;
2636        uint16_t que;
2637        struct req_que *req;
2638        __le32 *handle_ptr;
2639
2640        stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2641
2642        handle_count = stsmfx->handle_count;
2643
2644        if (handle_count > MAX_HANDLE_COUNT) {
2645                ql_dbg(ql_dbg_io, vha, 0x3035,
2646                    "Invalid handle count (0x%x).\n", handle_count);
2647                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2648                qla2xxx_wake_dpc(vha);
2649                return;
2650        }
2651
2652        handle_ptr =  &stsmfx->handles[0];
2653
2654        for (i = 0; i < handle_count; i++) {
2655                hindex = le32_to_cpu(*handle_ptr);
2656                handle = LSW(hindex);
2657                que = MSW(hindex);
2658                req = ha->req_q_map[que];
2659
2660                /* Validate handle. */
2661                if (handle < req->num_outstanding_cmds)
2662                        sp = req->outstanding_cmds[handle];
2663                else
2664                        sp = NULL;
2665
2666                if (sp == NULL) {
2667                        ql_dbg(ql_dbg_io, vha, 0x3044,
2668                            "Invalid status handle (0x%x).\n", handle);
2669                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2670                        qla2xxx_wake_dpc(vha);
2671                        return;
2672                }
2673                qla2x00_process_completed_request(vha, req, handle);
2674                handle_ptr++;
2675        }
2676}
2677
2678/**
2679 * qlafx00_error_entry() - Process an error entry.
2680 * @vha: SCSI driver HA context
2681 * @rsp: response queue
2682 * @pkt: Entry pointer
2683 */
2684static void
2685qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2686                    struct sts_entry_fx00 *pkt)
2687{
2688        srb_t *sp;
2689        struct qla_hw_data *ha = vha->hw;
2690        const char func[] = "ERROR-IOCB";
2691        uint16_t que = 0;
2692        struct req_que *req = NULL;
2693        int res = DID_ERROR << 16;
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 * @vha: SCSI driver HA context
2710 * @rsp: response queue
2711 */
2712static void
2713qlafx00_process_response_queue(struct scsi_qla_host *vha,
2714        struct rsp_que *rsp)
2715{
2716        struct sts_entry_fx00 *pkt;
2717        response_t *lptr;
2718        uint16_t lreq_q_in = 0;
2719        uint16_t lreq_q_out = 0;
2720
2721        lreq_q_in = rd_reg_dword(rsp->rsp_q_in);
2722        lreq_q_out = rsp->ring_index;
2723
2724        while (lreq_q_in != lreq_q_out) {
2725                lptr = rsp->ring_ptr;
2726                memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
2727                    sizeof(rsp->rsp_pkt));
2728                pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2729
2730                rsp->ring_index++;
2731                lreq_q_out++;
2732                if (rsp->ring_index == rsp->length) {
2733                        lreq_q_out = 0;
2734                        rsp->ring_index = 0;
2735                        rsp->ring_ptr = rsp->ring;
2736                } else {
2737                        rsp->ring_ptr++;
2738                }
2739
2740                if (pkt->entry_status != 0 &&
2741                    pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2742                        ql_dbg(ql_dbg_async, vha, 0x507f,
2743                               "type of error status in response: 0x%x\n",
2744                               pkt->entry_status);
2745                        qlafx00_error_entry(vha, rsp,
2746                                            (struct sts_entry_fx00 *)pkt);
2747                        continue;
2748                }
2749
2750                switch (pkt->entry_type) {
2751                case STATUS_TYPE_FX00:
2752                        qlafx00_status_entry(vha, rsp, pkt);
2753                        break;
2754
2755                case STATUS_CONT_TYPE_FX00:
2756                        qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2757                        break;
2758
2759                case MULTI_STATUS_TYPE_FX00:
2760                        qlafx00_multistatus_entry(vha, rsp, pkt);
2761                        break;
2762
2763                case ABORT_IOCB_TYPE_FX00:
2764                        qlafx00_abort_iocb_entry(vha, rsp->req,
2765                           (struct abort_iocb_entry_fx00 *)pkt);
2766                        break;
2767
2768                case IOCTL_IOSB_TYPE_FX00:
2769                        qlafx00_ioctl_iosb_entry(vha, rsp->req,
2770                            (struct ioctl_iocb_entry_fx00 *)pkt);
2771                        break;
2772                default:
2773                        /* Type Not Supported. */
2774                        ql_dbg(ql_dbg_async, vha, 0x5081,
2775                            "Received unknown response pkt type %x "
2776                            "entry status=%x.\n",
2777                            pkt->entry_type, pkt->entry_status);
2778                        break;
2779                }
2780        }
2781
2782        /* Adjust ring index */
2783        wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
2784}
2785
2786/**
2787 * qlafx00_async_event() - Process aynchronous events.
2788 * @vha: SCSI driver HA context
2789 */
2790static void
2791qlafx00_async_event(scsi_qla_host_t *vha)
2792{
2793        struct qla_hw_data *ha = vha->hw;
2794        struct device_reg_fx00 __iomem *reg;
2795        int data_size = 1;
2796
2797        reg = &ha->iobase->ispfx00;
2798        /* Setup to process RIO completion. */
2799        switch (ha->aenmb[0]) {
2800        case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2801                ql_log(ql_log_warn, vha, 0x5079,
2802                    "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2803                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2804                break;
2805
2806        case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2807                ql_dbg(ql_dbg_async, vha, 0x5076,
2808                    "Asynchronous FW shutdown requested.\n");
2809                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2810                qla2xxx_wake_dpc(vha);
2811                break;
2812
2813        case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2814                ha->aenmb[1] = rd_reg_dword(&reg->aenmailbox1);
2815                ha->aenmb[2] = rd_reg_dword(&reg->aenmailbox2);
2816                ha->aenmb[3] = rd_reg_dword(&reg->aenmailbox3);
2817                ql_dbg(ql_dbg_async, vha, 0x5077,
2818                    "Asynchronous port Update received "
2819                    "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2820                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2821                data_size = 4;
2822                break;
2823
2824        case QLAFX00_MBA_TEMP_OVER:     /* Over temperature event */
2825                ql_log(ql_log_info, vha, 0x5085,
2826                    "Asynchronous over temperature event received "
2827                    "aenmb[0]: %x\n",
2828                    ha->aenmb[0]);
2829                break;
2830
2831        case QLAFX00_MBA_TEMP_NORM:     /* Normal temperature event */
2832                ql_log(ql_log_info, vha, 0x5086,
2833                    "Asynchronous normal temperature event received "
2834                    "aenmb[0]: %x\n",
2835                    ha->aenmb[0]);
2836                break;
2837
2838        case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
2839                ql_log(ql_log_info, vha, 0x5083,
2840                    "Asynchronous critical temperature event received "
2841                    "aenmb[0]: %x\n",
2842                ha->aenmb[0]);
2843                break;
2844
2845        default:
2846                ha->aenmb[1] = rd_reg_dword(&reg->aenmailbox1);
2847                ha->aenmb[2] = rd_reg_dword(&reg->aenmailbox2);
2848                ha->aenmb[3] = rd_reg_dword(&reg->aenmailbox3);
2849                ha->aenmb[4] = rd_reg_dword(&reg->aenmailbox4);
2850                ha->aenmb[5] = rd_reg_dword(&reg->aenmailbox5);
2851                ha->aenmb[6] = rd_reg_dword(&reg->aenmailbox6);
2852                ha->aenmb[7] = rd_reg_dword(&reg->aenmailbox7);
2853                ql_dbg(ql_dbg_async, vha, 0x5078,
2854                    "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2855                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2856                    ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2857                break;
2858        }
2859        qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2860            (uint32_t *)ha->aenmb, data_size);
2861}
2862
2863/**
2864 * qlafx00x_mbx_completion() - Process mailbox command completions.
2865 * @vha: SCSI driver HA context
2866 * @mb0: value to be written into mailbox register 0
2867 */
2868static void
2869qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2870{
2871        uint16_t        cnt;
2872        __le32 __iomem *wptr;
2873        struct qla_hw_data *ha = vha->hw;
2874        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2875
2876        if (!ha->mcp32)
2877                ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2878
2879        /* Load return mailbox registers. */
2880        ha->flags.mbox_int = 1;
2881        ha->mailbox_out32[0] = mb0;
2882        wptr = &reg->mailbox17;
2883
2884        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2885                ha->mailbox_out32[cnt] = rd_reg_dword(wptr);
2886                wptr++;
2887        }
2888}
2889
2890/**
2891 * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2892 * @irq: interrupt number
2893 * @dev_id: SCSI driver HA context
2894 *
2895 * Called by system whenever the host adapter generates an interrupt.
2896 *
2897 * Returns handled flag.
2898 */
2899irqreturn_t
2900qlafx00_intr_handler(int irq, void *dev_id)
2901{
2902        scsi_qla_host_t *vha;
2903        struct qla_hw_data *ha;
2904        struct device_reg_fx00 __iomem *reg;
2905        int             status;
2906        unsigned long   iter;
2907        uint32_t        stat;
2908        uint32_t        mb[8];
2909        struct rsp_que *rsp;
2910        unsigned long   flags;
2911        uint32_t clr_intr = 0;
2912        uint32_t intr_stat = 0;
2913
2914        rsp = (struct rsp_que *) dev_id;
2915        if (!rsp) {
2916                ql_log(ql_log_info, NULL, 0x507d,
2917                    "%s: NULL response queue pointer.\n", __func__);
2918                return IRQ_NONE;
2919        }
2920
2921        ha = rsp->hw;
2922        reg = &ha->iobase->ispfx00;
2923        status = 0;
2924
2925        if (unlikely(pci_channel_offline(ha->pdev)))
2926                return IRQ_HANDLED;
2927
2928        spin_lock_irqsave(&ha->hardware_lock, flags);
2929        vha = pci_get_drvdata(ha->pdev);
2930        for (iter = 50; iter--; clr_intr = 0) {
2931                stat = QLAFX00_RD_INTR_REG(ha);
2932                if (qla2x00_check_reg32_for_disconnect(vha, stat))
2933                        break;
2934                intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
2935                if (!intr_stat)
2936                        break;
2937
2938                if (stat & QLAFX00_INTR_MB_CMPLT) {
2939                        mb[0] = rd_reg_dword(&reg->mailbox16);
2940                        qlafx00_mbx_completion(vha, mb[0]);
2941                        status |= MBX_INTERRUPT;
2942                        clr_intr |= QLAFX00_INTR_MB_CMPLT;
2943                }
2944                if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
2945                        ha->aenmb[0] = rd_reg_dword(&reg->aenmailbox0);
2946                        qlafx00_async_event(vha);
2947                        clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2948                }
2949                if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
2950                        qlafx00_process_response_queue(vha, rsp);
2951                        clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2952                }
2953
2954                QLAFX00_CLR_INTR_REG(ha, clr_intr);
2955                QLAFX00_RD_INTR_REG(ha);
2956        }
2957
2958        qla2x00_handle_mbx_completion(ha, status);
2959        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2960
2961        return IRQ_HANDLED;
2962}
2963
2964/** QLAFX00 specific IOCB implementation functions */
2965
2966static inline cont_a64_entry_t *
2967qlafx00_prep_cont_type1_iocb(struct req_que *req,
2968                             cont_a64_entry_t *lcont_pkt)
2969{
2970        cont_a64_entry_t *cont_pkt;
2971
2972        /* Adjust ring index. */
2973        req->ring_index++;
2974        if (req->ring_index == req->length) {
2975                req->ring_index = 0;
2976                req->ring_ptr = req->ring;
2977        } else {
2978                req->ring_ptr++;
2979        }
2980
2981        cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2982
2983        /* Load packet defaults. */
2984        lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
2985
2986        return cont_pkt;
2987}
2988
2989static inline void
2990qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2991                         uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2992{
2993        uint16_t        avail_dsds;
2994        struct dsd64    *cur_dsd;
2995        scsi_qla_host_t *vha;
2996        struct scsi_cmnd *cmd;
2997        struct scatterlist *sg;
2998        int i, cont;
2999        struct req_que *req;
3000        cont_a64_entry_t lcont_pkt;
3001        cont_a64_entry_t *cont_pkt;
3002
3003        vha = sp->vha;
3004        req = vha->req;
3005
3006        cmd = GET_CMD_SP(sp);
3007        cont = 0;
3008        cont_pkt = NULL;
3009
3010        /* Update entry type to indicate Command Type 3 IOCB */
3011        lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3012
3013        /* No data transfer */
3014        if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3015                lcmd_pkt->byte_count = cpu_to_le32(0);
3016                return;
3017        }
3018
3019        /* Set transfer direction */
3020        if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3021                lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3022                vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3023        } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3024                lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3025                vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3026        }
3027
3028        /* One DSD is available in the Command Type 3 IOCB */
3029        avail_dsds = 1;
3030        cur_dsd = &lcmd_pkt->dsd;
3031
3032        /* Load data segments */
3033        scsi_for_each_sg(cmd, sg, tot_dsds, i) {
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 = lcont_pkt.dsd;
3044                        avail_dsds = 5;
3045                        cont = 1;
3046                }
3047
3048                append_dsd64(&cur_dsd, sg);
3049                avail_dsds--;
3050                if (avail_dsds == 0 && cont == 1) {
3051                        cont = 0;
3052                        memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3053                            sizeof(lcont_pkt));
3054                }
3055
3056        }
3057        if (avail_dsds != 0 && cont == 1) {
3058                memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3059                    sizeof(lcont_pkt));
3060        }
3061}
3062
3063/**
3064 * qlafx00_start_scsi() - Send a SCSI command to the ISP
3065 * @sp: command to send to the ISP
3066 *
3067 * Returns non-zero if a failure occurred, else zero.
3068 */
3069int
3070qlafx00_start_scsi(srb_t *sp)
3071{
3072        int             nseg;
3073        unsigned long   flags;
3074        uint32_t        handle;
3075        uint16_t        cnt;
3076        uint16_t        req_cnt;
3077        uint16_t        tot_dsds;
3078        struct req_que *req = NULL;
3079        struct rsp_que *rsp = NULL;
3080        struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3081        struct scsi_qla_host *vha = sp->vha;
3082        struct qla_hw_data *ha = vha->hw;
3083        struct cmd_type_7_fx00 *cmd_pkt;
3084        struct cmd_type_7_fx00 lcmd_pkt;
3085        struct scsi_lun llun;
3086
3087        /* Setup device pointers. */
3088        rsp = ha->rsp_q_map[0];
3089        req = vha->req;
3090
3091        /* So we know we haven't pci_map'ed anything yet */
3092        tot_dsds = 0;
3093
3094        /* Acquire ring specific lock */
3095        spin_lock_irqsave(&ha->hardware_lock, flags);
3096
3097        handle = qla2xxx_get_next_handle(req);
3098        if (handle == 0)
3099                goto queuing_error;
3100
3101        /* Map the sg table so we have an accurate count of sg entries needed */
3102        if (scsi_sg_count(cmd)) {
3103                nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3104                    scsi_sg_count(cmd), cmd->sc_data_direction);
3105                if (unlikely(!nseg))
3106                        goto queuing_error;
3107        } else
3108                nseg = 0;
3109
3110        tot_dsds = nseg;
3111        req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3112        if (req->cnt < (req_cnt + 2)) {
3113                cnt = rd_reg_dword_relaxed(req->req_q_out);
3114
3115                if (req->ring_index < cnt)
3116                        req->cnt = cnt - req->ring_index;
3117                else
3118                        req->cnt = req->length -
3119                                (req->ring_index - cnt);
3120                if (req->cnt < (req_cnt + 2))
3121                        goto queuing_error;
3122        }
3123
3124        /* Build command packet. */
3125        req->current_outstanding_cmd = handle;
3126        req->outstanding_cmds[handle] = sp;
3127        sp->handle = handle;
3128        cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3129        req->cnt -= req_cnt;
3130
3131        cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3132
3133        memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3134
3135        lcmd_pkt.handle = make_handle(req->id, sp->handle);
3136        lcmd_pkt.reserved_0 = 0;
3137        lcmd_pkt.port_path_ctrl = 0;
3138        lcmd_pkt.reserved_1 = 0;
3139        lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3140        lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3141
3142        int_to_scsilun(cmd->device->lun, &llun);
3143        host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3144            sizeof(lcmd_pkt.lun));
3145
3146        /* Load SCSI command packet. */
3147        host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3148        lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3149
3150        /* Build IOCB segments */
3151        qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3152
3153        /* Set total data segment count. */
3154        lcmd_pkt.entry_count = (uint8_t)req_cnt;
3155
3156        /* Specify response queue number where completion should happen */
3157        lcmd_pkt.entry_status = (uint8_t) rsp->id;
3158
3159        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3160            cmd->cmnd, cmd->cmd_len);
3161        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3162            &lcmd_pkt, sizeof(lcmd_pkt));
3163
3164        memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3165        wmb();
3166
3167        /* Adjust ring index. */
3168        req->ring_index++;
3169        if (req->ring_index == req->length) {
3170                req->ring_index = 0;
3171                req->ring_ptr = req->ring;
3172        } else
3173                req->ring_ptr++;
3174
3175        sp->flags |= SRB_DMA_VALID;
3176
3177        /* Set chip new ring index. */
3178        wrt_reg_dword(req->req_q_in, req->ring_index);
3179        QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3180
3181        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3182        return QLA_SUCCESS;
3183
3184queuing_error:
3185        if (tot_dsds)
3186                scsi_dma_unmap(cmd);
3187
3188        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3189
3190        return QLA_FUNCTION_FAILED;
3191}
3192
3193void
3194qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3195{
3196        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3197        scsi_qla_host_t *vha = sp->vha;
3198        struct req_que *req = vha->req;
3199        struct tsk_mgmt_entry_fx00 tm_iocb;
3200        struct scsi_lun llun;
3201
3202        memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3203        tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3204        tm_iocb.entry_count = 1;
3205        tm_iocb.handle = make_handle(req->id, sp->handle);
3206        tm_iocb.reserved_0 = 0;
3207        tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3208        tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3209        if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3210                int_to_scsilun(fxio->u.tmf.lun, &llun);
3211                host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3212                    sizeof(struct scsi_lun));
3213        }
3214
3215        memcpy(ptm_iocb, &tm_iocb,
3216            sizeof(struct tsk_mgmt_entry_fx00));
3217        wmb();
3218}
3219
3220void
3221qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3222{
3223        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3224        scsi_qla_host_t *vha = sp->vha;
3225        struct req_que *req = vha->req;
3226        struct abort_iocb_entry_fx00 abt_iocb;
3227
3228        memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3229        abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3230        abt_iocb.entry_count = 1;
3231        abt_iocb.handle = make_handle(req->id, sp->handle);
3232        abt_iocb.abort_handle = make_handle(req->id, fxio->u.abt.cmd_hndl);
3233        abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3234        abt_iocb.req_que_no = cpu_to_le16(req->id);
3235
3236        memcpy(pabt_iocb, &abt_iocb,
3237            sizeof(struct abort_iocb_entry_fx00));
3238        wmb();
3239}
3240
3241void
3242qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3243{
3244        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3245        struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3246        struct bsg_job *bsg_job;
3247        struct fc_bsg_request *bsg_request;
3248        struct fxdisc_entry_fx00 fx_iocb;
3249        uint8_t entry_cnt = 1;
3250
3251        memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3252        fx_iocb.entry_type = FX00_IOCB_TYPE;
3253        fx_iocb.handle = sp->handle;
3254        fx_iocb.entry_count = entry_cnt;
3255
3256        if (sp->type == SRB_FXIOCB_DCMD) {
3257                fx_iocb.func_num =
3258                    sp->u.iocb_cmd.u.fxiocb.req_func_type;
3259                fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
3260                fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
3261                fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
3262                fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
3263                fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3264
3265                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3266                        fx_iocb.req_dsdcnt = cpu_to_le16(1);
3267                        fx_iocb.req_xfrcnt =
3268                            cpu_to_le16(fxio->u.fxiocb.req_len);
3269                        put_unaligned_le64(fxio->u.fxiocb.req_dma_handle,
3270                                           &fx_iocb.dseg_rq.address);
3271                        fx_iocb.dseg_rq.length =
3272                            cpu_to_le32(fxio->u.fxiocb.req_len);
3273                }
3274
3275                if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3276                        fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3277                        fx_iocb.rsp_xfrcnt =
3278                            cpu_to_le16(fxio->u.fxiocb.rsp_len);
3279                        put_unaligned_le64(fxio->u.fxiocb.rsp_dma_handle,
3280                                           &fx_iocb.dseg_rsp.address);
3281                        fx_iocb.dseg_rsp.length =
3282                            cpu_to_le32(fxio->u.fxiocb.rsp_len);
3283                }
3284
3285                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3286                        fx_iocb.dataword = fxio->u.fxiocb.req_data;
3287                }
3288                fx_iocb.flags = fxio->u.fxiocb.flags;
3289        } else {
3290                struct scatterlist *sg;
3291
3292                bsg_job = sp->u.bsg_job;
3293                bsg_request = bsg_job->request;
3294                piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3295                        &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3296
3297                fx_iocb.func_num = piocb_rqst->func_type;
3298                fx_iocb.adapid = piocb_rqst->adapid;
3299                fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3300                fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3301                fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3302                fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3303                fx_iocb.dataword = piocb_rqst->dataword;
3304                fx_iocb.req_xfrcnt = piocb_rqst->req_len;
3305                fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3306
3307                if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3308                        int avail_dsds, tot_dsds;
3309                        cont_a64_entry_t lcont_pkt;
3310                        cont_a64_entry_t *cont_pkt = NULL;
3311                        struct dsd64 *cur_dsd;
3312                        int index = 0, cont = 0;
3313
3314                        fx_iocb.req_dsdcnt =
3315                            cpu_to_le16(bsg_job->request_payload.sg_cnt);
3316                        tot_dsds =
3317                            bsg_job->request_payload.sg_cnt;
3318                        cur_dsd = &fx_iocb.dseg_rq;
3319                        avail_dsds = 1;
3320                        for_each_sg(bsg_job->request_payload.sg_list, sg,
3321                            tot_dsds, index) {
3322                                /* Allocate additional continuation packets? */
3323                                if (avail_dsds == 0) {
3324                                        /*
3325                                         * Five DSDs are available in the Cont.
3326                                         * Type 1 IOCB.
3327                                         */
3328                                        memset(&lcont_pkt, 0,
3329                                            REQUEST_ENTRY_SIZE);
3330                                        cont_pkt =
3331                                            qlafx00_prep_cont_type1_iocb(
3332                                                sp->vha->req, &lcont_pkt);
3333                                        cur_dsd = lcont_pkt.dsd;
3334                                        avail_dsds = 5;
3335                                        cont = 1;
3336                                        entry_cnt++;
3337                                }
3338
3339                                append_dsd64(&cur_dsd, sg);
3340                                avail_dsds--;
3341
3342                                if (avail_dsds == 0 && cont == 1) {
3343                                        cont = 0;
3344                                        memcpy_toio(
3345                                            (void __iomem *)cont_pkt,
3346                                            &lcont_pkt, REQUEST_ENTRY_SIZE);
3347                                        ql_dump_buffer(
3348                                            ql_dbg_user + ql_dbg_verbose,
3349                                            sp->vha, 0x3042,
3350                                            (uint8_t *)&lcont_pkt,
3351                                             REQUEST_ENTRY_SIZE);
3352                                }
3353                        }
3354                        if (avail_dsds != 0 && cont == 1) {
3355                                memcpy_toio((void __iomem *)cont_pkt,
3356                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3357                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3358                                    sp->vha, 0x3043,
3359                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3360                        }
3361                }
3362
3363                if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3364                        int avail_dsds, tot_dsds;
3365                        cont_a64_entry_t lcont_pkt;
3366                        cont_a64_entry_t *cont_pkt = NULL;
3367                        struct dsd64 *cur_dsd;
3368                        int index = 0, cont = 0;
3369
3370                        fx_iocb.rsp_dsdcnt =
3371                           cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3372                        tot_dsds = bsg_job->reply_payload.sg_cnt;
3373                        cur_dsd = &fx_iocb.dseg_rsp;
3374                        avail_dsds = 1;
3375
3376                        for_each_sg(bsg_job->reply_payload.sg_list, sg,
3377                            tot_dsds, index) {
3378                                /* Allocate additional continuation packets? */
3379                                if (avail_dsds == 0) {
3380                                        /*
3381                                        * Five DSDs are available in the Cont.
3382                                        * Type 1 IOCB.
3383                                        */
3384                                        memset(&lcont_pkt, 0,
3385                                            REQUEST_ENTRY_SIZE);
3386                                        cont_pkt =
3387                                            qlafx00_prep_cont_type1_iocb(
3388                                                sp->vha->req, &lcont_pkt);
3389                                        cur_dsd = lcont_pkt.dsd;
3390                                        avail_dsds = 5;
3391                                        cont = 1;
3392                                        entry_cnt++;
3393                                }
3394
3395                                append_dsd64(&cur_dsd, sg);
3396                                avail_dsds--;
3397
3398                                if (avail_dsds == 0 && cont == 1) {
3399                                        cont = 0;
3400                                        memcpy_toio((void __iomem *)cont_pkt,
3401                                            &lcont_pkt,
3402                                            REQUEST_ENTRY_SIZE);
3403                                        ql_dump_buffer(
3404                                            ql_dbg_user + ql_dbg_verbose,
3405                                            sp->vha, 0x3045,
3406                                            (uint8_t *)&lcont_pkt,
3407                                            REQUEST_ENTRY_SIZE);
3408                                }
3409                        }
3410                        if (avail_dsds != 0 && cont == 1) {
3411                                memcpy_toio((void __iomem *)cont_pkt,
3412                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3413                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3414                                    sp->vha, 0x3046,
3415                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3416                        }
3417                }
3418
3419                if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3420                        fx_iocb.dataword = piocb_rqst->dataword;
3421                fx_iocb.flags = piocb_rqst->flags;
3422                fx_iocb.entry_count = entry_cnt;
3423        }
3424
3425        ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3426            sp->vha, 0x3047, &fx_iocb, sizeof(fx_iocb));
3427
3428        memcpy_toio((void __iomem *)pfxiocb, &fx_iocb, sizeof(fx_iocb));
3429        wmb();
3430}
3431