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        uint32_t __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_frozen) {
  57                ql_log(ql_log_warn, vha, 0x115c,
  58                    "error_state is greater than pci_channel_io_frozen, "
  59                    "exiting.\n");
  60                return QLA_FUNCTION_TIMEOUT;
  61        }
  62
  63        if (vha->device_flags & DFLG_DEV_FAILED) {
  64                ql_log(ql_log_warn, vha, 0x115f,
  65                    "Device in failed state, exiting.\n");
  66                return QLA_FUNCTION_TIMEOUT;
  67        }
  68
  69        reg = ha->iobase;
  70        io_lock_on = base_vha->flags.init_done;
  71
  72        rval = QLA_SUCCESS;
  73        abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
  74
  75        if (ha->flags.pci_channel_io_perm_failure) {
  76                ql_log(ql_log_warn, vha, 0x1175,
  77                    "Perm failure on EEH timeout MBX, exiting.\n");
  78                return QLA_FUNCTION_TIMEOUT;
  79        }
  80
  81        if (ha->flags.isp82xx_fw_hung) {
  82                /* Setting Link-Down error */
  83                mcp->mb[0] = MBS_LINK_DOWN_ERROR;
  84                ql_log(ql_log_warn, vha, 0x1176,
  85                    "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
  86                rval = QLA_FUNCTION_FAILED;
  87                goto premature_exit;
  88        }
  89
  90        /*
  91         * Wait for active mailbox commands to finish by waiting at most tov
  92         * seconds. This is to serialize actual issuing of mailbox cmds during
  93         * non ISP abort time.
  94         */
  95        if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
  96                /* Timeout occurred. Return error. */
  97                ql_log(ql_log_warn, vha, 0x1177,
  98                    "Cmd access timeout, cmd=0x%x, Exiting.\n",
  99                    mcp->mb[0]);
 100                return QLA_FUNCTION_TIMEOUT;
 101        }
 102
 103        ha->flags.mbox_busy = 1;
 104        /* Save mailbox command for debug */
 105        ha->mcp32 = mcp;
 106
 107        ql_dbg(ql_dbg_mbx, vha, 0x1178,
 108            "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
 109
 110        spin_lock_irqsave(&ha->hardware_lock, flags);
 111
 112        /* Load mailbox registers. */
 113        optr = (uint32_t __iomem *)&reg->ispfx00.mailbox0;
 114
 115        iptr = mcp->mb;
 116        command = mcp->mb[0];
 117        mboxes = mcp->out_mb;
 118
 119        for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 120                if (mboxes & BIT_0)
 121                        WRT_REG_DWORD(optr, *iptr);
 122
 123                mboxes >>= 1;
 124                optr++;
 125                iptr++;
 126        }
 127
 128        /* Issue set host interrupt command to send cmd out. */
 129        ha->flags.mbox_int = 0;
 130        clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 131
 132        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
 133            (uint8_t *)mcp->mb, 16);
 134        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
 135            ((uint8_t *)mcp->mb + 0x10), 16);
 136        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
 137            ((uint8_t *)mcp->mb + 0x20), 8);
 138
 139        /* Unlock mbx registers and wait for interrupt */
 140        ql_dbg(ql_dbg_mbx, vha, 0x1179,
 141            "Going to unlock irq & waiting for interrupts. "
 142            "jiffies=%lx.\n", jiffies);
 143
 144        /* Wait for mbx cmd completion until timeout */
 145        if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 146                set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 147
 148                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 149                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 150
 151                WARN_ON_ONCE(wait_for_completion_timeout(&ha->mbx_intr_comp,
 152                                                         mcp->tov * HZ) != 0);
 153        } else {
 154                ql_dbg(ql_dbg_mbx, vha, 0x112c,
 155                    "Cmd=%x Polling Mode.\n", command);
 156
 157                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 158                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 159
 160                wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 161                while (!ha->flags.mbox_int) {
 162                        if (time_after(jiffies, wait_time))
 163                                break;
 164
 165                        /* Check for pending interrupts. */
 166                        qla2x00_poll(ha->rsp_q_map[0]);
 167
 168                        if (!ha->flags.mbox_int &&
 169                            !(IS_QLA2200(ha) &&
 170                            command == MBC_LOAD_RISC_RAM_EXTENDED))
 171                                usleep_range(10000, 11000);
 172                } /* while */
 173                ql_dbg(ql_dbg_mbx, vha, 0x112d,
 174                    "Waited %d sec.\n",
 175                    (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 176        }
 177
 178        /* Check whether we timed out */
 179        if (ha->flags.mbox_int) {
 180                uint32_t *iptr2;
 181
 182                ql_dbg(ql_dbg_mbx, vha, 0x112e,
 183                    "Cmd=%x completed.\n", command);
 184
 185                /* Got interrupt. Clear the flag. */
 186                ha->flags.mbox_int = 0;
 187                clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 188
 189                if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 190                        rval = QLA_FUNCTION_FAILED;
 191
 192                /* Load return mailbox registers. */
 193                iptr2 = mcp->mb;
 194                iptr = (uint32_t *)&ha->mailbox_out32[0];
 195                mboxes = mcp->in_mb;
 196                for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 197                        if (mboxes & BIT_0)
 198                                *iptr2 = *iptr;
 199
 200                        mboxes >>= 1;
 201                        iptr2++;
 202                        iptr++;
 203                }
 204        } else {
 205
 206                rval = QLA_FUNCTION_TIMEOUT;
 207        }
 208
 209        ha->flags.mbox_busy = 0;
 210
 211        /* Clean up */
 212        ha->mcp32 = NULL;
 213
 214        if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 215                ql_dbg(ql_dbg_mbx, vha, 0x113a,
 216                    "checking for additional resp interrupt.\n");
 217
 218                /* polling mode for non isp_abort commands. */
 219                qla2x00_poll(ha->rsp_q_map[0]);
 220        }
 221
 222        if (rval == QLA_FUNCTION_TIMEOUT &&
 223            mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 224                if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 225                    ha->flags.eeh_busy) {
 226                        /* not in dpc. schedule it for dpc to take over. */
 227                        ql_dbg(ql_dbg_mbx, vha, 0x115d,
 228                            "Timeout, schedule isp_abort_needed.\n");
 229
 230                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 231                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 232                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 233
 234                                ql_log(ql_log_info, base_vha, 0x115e,
 235                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 236                                    "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 237                                    "abort.\n", command, mcp->mb[0],
 238                                    ha->flags.eeh_busy);
 239                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 240                                qla2xxx_wake_dpc(vha);
 241                        }
 242                } else if (!abort_active) {
 243                        /* call abort directly since we are in the DPC thread */
 244                        ql_dbg(ql_dbg_mbx, vha, 0x1160,
 245                            "Timeout, calling abort_isp.\n");
 246
 247                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 248                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 249                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 250
 251                                ql_log(ql_log_info, base_vha, 0x1161,
 252                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 253                                    "mb[0]=0x%x. Scheduling ISP abort ",
 254                                    command, mcp->mb[0]);
 255
 256                                set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 257                                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 258                                if (ha->isp_ops->abort_isp(vha)) {
 259                                        /* Failed. retry later. */
 260                                        set_bit(ISP_ABORT_NEEDED,
 261                                            &vha->dpc_flags);
 262                                }
 263                                clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 264                                ql_dbg(ql_dbg_mbx, vha, 0x1162,
 265                                    "Finished abort_isp.\n");
 266                        }
 267                }
 268        }
 269
 270premature_exit:
 271        /* Allow next mbx cmd to come in. */
 272        complete(&ha->mbx_cmd_comp);
 273
 274        if (rval) {
 275                ql_log(ql_log_warn, base_vha, 0x1163,
 276                       "**** Failed=%x mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
 277                       rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
 278                       command);
 279        } else {
 280                ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 281        }
 282
 283        return rval;
 284}
 285
 286/*
 287 * qlafx00_driver_shutdown
 288 *      Indicate a driver shutdown to firmware.
 289 *
 290 * Input:
 291 *      ha = adapter block pointer.
 292 *
 293 * Returns:
 294 *      local function return status code.
 295 *
 296 * Context:
 297 *      Kernel context.
 298 */
 299int
 300qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
 301{
 302        int rval;
 303        struct mbx_cmd_32 mc;
 304        struct mbx_cmd_32 *mcp = &mc;
 305
 306        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
 307            "Entered %s.\n", __func__);
 308
 309        mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
 310        mcp->out_mb = MBX_0;
 311        mcp->in_mb = MBX_0;
 312        if (tmo)
 313                mcp->tov = tmo;
 314        else
 315                mcp->tov = MBX_TOV_SECONDS;
 316        mcp->flags = 0;
 317        rval = qlafx00_mailbox_command(vha, mcp);
 318
 319        if (rval != QLA_SUCCESS) {
 320                ql_dbg(ql_dbg_mbx, vha, 0x1167,
 321                    "Failed=%x.\n", rval);
 322        } else {
 323                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
 324                    "Done %s.\n", __func__);
 325        }
 326
 327        return rval;
 328}
 329
 330/*
 331 * qlafx00_get_firmware_state
 332 *      Get adapter firmware state.
 333 *
 334 * Input:
 335 *      ha = adapter block pointer.
 336 *      TARGET_QUEUE_LOCK must be released.
 337 *      ADAPTER_STATE_LOCK must be released.
 338 *
 339 * Returns:
 340 *      qla7xxx local function return status code.
 341 *
 342 * Context:
 343 *      Kernel context.
 344 */
 345static int
 346qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
 347{
 348        int rval;
 349        struct mbx_cmd_32 mc;
 350        struct mbx_cmd_32 *mcp = &mc;
 351
 352        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
 353            "Entered %s.\n", __func__);
 354
 355        mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 356        mcp->out_mb = MBX_0;
 357        mcp->in_mb = MBX_1|MBX_0;
 358        mcp->tov = MBX_TOV_SECONDS;
 359        mcp->flags = 0;
 360        rval = qlafx00_mailbox_command(vha, mcp);
 361
 362        /* Return firmware states. */
 363        states[0] = mcp->mb[1];
 364
 365        if (rval != QLA_SUCCESS) {
 366                ql_dbg(ql_dbg_mbx, vha, 0x116a,
 367                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 368        } else {
 369                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
 370                    "Done %s.\n", __func__);
 371        }
 372        return rval;
 373}
 374
 375/*
 376 * qlafx00_init_firmware
 377 *      Initialize adapter firmware.
 378 *
 379 * Input:
 380 *      ha = adapter block pointer.
 381 *      dptr = Initialization control block pointer.
 382 *      size = size of initialization control block.
 383 *      TARGET_QUEUE_LOCK must be released.
 384 *      ADAPTER_STATE_LOCK must be released.
 385 *
 386 * Returns:
 387 *      qlafx00 local function return status code.
 388 *
 389 * Context:
 390 *      Kernel context.
 391 */
 392int
 393qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
 394{
 395        int rval;
 396        struct mbx_cmd_32 mc;
 397        struct mbx_cmd_32 *mcp = &mc;
 398        struct qla_hw_data *ha = vha->hw;
 399
 400        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
 401            "Entered %s.\n", __func__);
 402
 403        mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
 404
 405        mcp->mb[1] = 0;
 406        mcp->mb[2] = MSD(ha->init_cb_dma);
 407        mcp->mb[3] = LSD(ha->init_cb_dma);
 408
 409        mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
 410        mcp->in_mb = MBX_0;
 411        mcp->buf_size = size;
 412        mcp->flags = MBX_DMA_OUT;
 413        mcp->tov = MBX_TOV_SECONDS;
 414        rval = qlafx00_mailbox_command(vha, mcp);
 415
 416        if (rval != QLA_SUCCESS) {
 417                ql_dbg(ql_dbg_mbx, vha, 0x116d,
 418                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 419        } else {
 420                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
 421                    "Done %s.\n", __func__);
 422        }
 423        return rval;
 424}
 425
 426/*
 427 * qlafx00_mbx_reg_test
 428 */
 429static int
 430qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
 431{
 432        int rval;
 433        struct mbx_cmd_32 mc;
 434        struct mbx_cmd_32 *mcp = &mc;
 435
 436        ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
 437            "Entered %s.\n", __func__);
 438
 439
 440        mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
 441        mcp->mb[1] = 0xAAAA;
 442        mcp->mb[2] = 0x5555;
 443        mcp->mb[3] = 0xAA55;
 444        mcp->mb[4] = 0x55AA;
 445        mcp->mb[5] = 0xA5A5;
 446        mcp->mb[6] = 0x5A5A;
 447        mcp->mb[7] = 0x2525;
 448        mcp->mb[8] = 0xBBBB;
 449        mcp->mb[9] = 0x6666;
 450        mcp->mb[10] = 0xBB66;
 451        mcp->mb[11] = 0x66BB;
 452        mcp->mb[12] = 0xB6B6;
 453        mcp->mb[13] = 0x6B6B;
 454        mcp->mb[14] = 0x3636;
 455        mcp->mb[15] = 0xCCCC;
 456
 457
 458        mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 459                        MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 460        mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
 461                        MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 462        mcp->buf_size = 0;
 463        mcp->flags = MBX_DMA_OUT;
 464        mcp->tov = MBX_TOV_SECONDS;
 465        rval = qlafx00_mailbox_command(vha, mcp);
 466        if (rval == QLA_SUCCESS) {
 467                if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
 468                    mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
 469                        rval = QLA_FUNCTION_FAILED;
 470                if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
 471                    mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
 472                        rval = QLA_FUNCTION_FAILED;
 473                if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
 474                    mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
 475                        rval = QLA_FUNCTION_FAILED;
 476                if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
 477                    mcp->mb[31] != 0xCCCC)
 478                        rval = QLA_FUNCTION_FAILED;
 479        }
 480
 481        if (rval != QLA_SUCCESS) {
 482                ql_dbg(ql_dbg_mbx, vha, 0x1170,
 483                    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
 484        } else {
 485                ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
 486                    "Done %s.\n", __func__);
 487        }
 488        return rval;
 489}
 490
 491/**
 492 * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 493 * @vha: HA context
 494 *
 495 * Returns 0 on success.
 496 */
 497int
 498qlafx00_pci_config(scsi_qla_host_t *vha)
 499{
 500        uint16_t w;
 501        struct qla_hw_data *ha = vha->hw;
 502
 503        pci_set_master(ha->pdev);
 504        pci_try_set_mwi(ha->pdev);
 505
 506        pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 507        w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 508        w &= ~PCI_COMMAND_INTX_DISABLE;
 509        pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 510
 511        /* PCIe -- adjust Maximum Read Request Size (2048). */
 512        if (pci_is_pcie(ha->pdev))
 513                pcie_set_readrq(ha->pdev, 2048);
 514
 515        ha->chip_revision = ha->pdev->revision;
 516
 517        return QLA_SUCCESS;
 518}
 519
 520/**
 521 * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 522 * @vha: HA context
 523 *
 524 */
 525static inline void
 526qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
 527{
 528        unsigned long flags = 0;
 529        struct qla_hw_data *ha = vha->hw;
 530        int i, core;
 531        uint32_t cnt;
 532        uint32_t reg_val;
 533
 534        spin_lock_irqsave(&ha->hardware_lock, flags);
 535
 536        QLAFX00_SET_HBA_SOC_REG(ha, 0x80004, 0);
 537        QLAFX00_SET_HBA_SOC_REG(ha, 0x82004, 0);
 538
 539        /* stop the XOR DMA engines */
 540        QLAFX00_SET_HBA_SOC_REG(ha, 0x60920, 0x02);
 541        QLAFX00_SET_HBA_SOC_REG(ha, 0x60924, 0x02);
 542        QLAFX00_SET_HBA_SOC_REG(ha, 0xf0920, 0x02);
 543        QLAFX00_SET_HBA_SOC_REG(ha, 0xf0924, 0x02);
 544
 545        /* stop the IDMA engines */
 546        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60840);
 547        reg_val &= ~(1<<12);
 548        QLAFX00_SET_HBA_SOC_REG(ha, 0x60840, reg_val);
 549
 550        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60844);
 551        reg_val &= ~(1<<12);
 552        QLAFX00_SET_HBA_SOC_REG(ha, 0x60844, reg_val);
 553
 554        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60848);
 555        reg_val &= ~(1<<12);
 556        QLAFX00_SET_HBA_SOC_REG(ha, 0x60848, reg_val);
 557
 558        reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x6084C);
 559        reg_val &= ~(1<<12);
 560        QLAFX00_SET_HBA_SOC_REG(ha, 0x6084C, reg_val);
 561
 562        for (i = 0; i < 100000; i++) {
 563                if ((QLAFX00_GET_HBA_SOC_REG(ha, 0xd0000) & 0x10000000) == 0 &&
 564                    (QLAFX00_GET_HBA_SOC_REG(ha, 0x10600) & 0x1) == 0)
 565                        break;
 566                udelay(100);
 567        }
 568
 569        /* Set all 4 cores in reset */
 570        for (i = 0; i < 4; i++) {
 571                QLAFX00_SET_HBA_SOC_REG(ha,
 572                    (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
 573                QLAFX00_SET_HBA_SOC_REG(ha,
 574                    (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
 575        }
 576
 577        /* Reset all units in Fabric */
 578        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x011f0101));
 579
 580        /* */
 581        QLAFX00_SET_HBA_SOC_REG(ha, 0x10610, 1);
 582        QLAFX00_SET_HBA_SOC_REG(ha, 0x10600, 0);
 583
 584        /* Set all 4 core Memory Power Down Registers */
 585        for (i = 0; i < 5; i++) {
 586                QLAFX00_SET_HBA_SOC_REG(ha,
 587                    (SOC_PWR_MANAGEMENT_PWR_DOWN_REG + 4*i), (0x0));
 588        }
 589
 590        /* Reset all interrupt control registers */
 591        for (i = 0; i < 115; i++) {
 592                QLAFX00_SET_HBA_SOC_REG(ha,
 593                    (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
 594        }
 595
 596        /* Reset Timers control registers. per core */
 597        for (core = 0; core < 4; core++)
 598                for (i = 0; i < 8; i++)
 599                        QLAFX00_SET_HBA_SOC_REG(ha,
 600                            (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
 601
 602        /* Reset per core IRQ ack register */
 603        for (core = 0; core < 4; core++)
 604                QLAFX00_SET_HBA_SOC_REG(ha,
 605                    (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
 606
 607        /* Set Fabric control and config to defaults */
 608        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
 609        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
 610
 611        /* Kick in Fabric units */
 612        QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
 613
 614        /* Kick in Core0 to start boot process */
 615        QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
 616
 617        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 618
 619        /* Wait 10secs for soft-reset to complete. */
 620        for (cnt = 10; cnt; cnt--) {
 621                msleep(1000);
 622                barrier();
 623        }
 624}
 625
 626/**
 627 * qlafx00_soft_reset() - Soft Reset ISPFx00.
 628 * @vha: HA context
 629 *
 630 * Returns 0 on success.
 631 */
 632int
 633qlafx00_soft_reset(scsi_qla_host_t *vha)
 634{
 635        struct qla_hw_data *ha = vha->hw;
 636        int rval = QLA_FUNCTION_FAILED;
 637
 638        if (unlikely(pci_channel_offline(ha->pdev) &&
 639            ha->flags.pci_channel_io_perm_failure))
 640                return rval;
 641
 642        ha->isp_ops->disable_intrs(ha);
 643        qlafx00_soc_cpu_reset(vha);
 644
 645        return QLA_SUCCESS;
 646}
 647
 648/**
 649 * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 650 * @vha: HA context
 651 *
 652 * Returns 0 on success.
 653 */
 654int
 655qlafx00_chip_diag(scsi_qla_host_t *vha)
 656{
 657        int rval = 0;
 658        struct qla_hw_data *ha = vha->hw;
 659        struct req_que *req = ha->req_q_map[0];
 660
 661        ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 662
 663        rval = qlafx00_mbx_reg_test(vha);
 664        if (rval) {
 665                ql_log(ql_log_warn, vha, 0x1165,
 666                    "Failed mailbox send register test\n");
 667        } else {
 668                /* Flag a successful rval */
 669                rval = QLA_SUCCESS;
 670        }
 671        return rval;
 672}
 673
 674void
 675qlafx00_config_rings(struct scsi_qla_host *vha)
 676{
 677        struct qla_hw_data *ha = vha->hw;
 678        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 679
 680        WRT_REG_DWORD(&reg->req_q_in, 0);
 681        WRT_REG_DWORD(&reg->req_q_out, 0);
 682
 683        WRT_REG_DWORD(&reg->rsp_q_in, 0);
 684        WRT_REG_DWORD(&reg->rsp_q_out, 0);
 685
 686        /* PCI posting */
 687        RD_REG_DWORD(&reg->rsp_q_out);
 688}
 689
 690char *
 691qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
 692{
 693        struct qla_hw_data *ha = vha->hw;
 694
 695        if (pci_is_pcie(ha->pdev))
 696                strlcpy(str, "PCIe iSA", str_len);
 697        return str;
 698}
 699
 700char *
 701qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
 702{
 703        struct qla_hw_data *ha = vha->hw;
 704
 705        snprintf(str, size, "%s", ha->mr.fw_version);
 706        return str;
 707}
 708
 709void
 710qlafx00_enable_intrs(struct qla_hw_data *ha)
 711{
 712        unsigned long flags = 0;
 713
 714        spin_lock_irqsave(&ha->hardware_lock, flags);
 715        ha->interrupts_on = 1;
 716        QLAFX00_ENABLE_ICNTRL_REG(ha);
 717        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 718}
 719
 720void
 721qlafx00_disable_intrs(struct qla_hw_data *ha)
 722{
 723        unsigned long flags = 0;
 724
 725        spin_lock_irqsave(&ha->hardware_lock, flags);
 726        ha->interrupts_on = 0;
 727        QLAFX00_DISABLE_ICNTRL_REG(ha);
 728        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 729}
 730
 731int
 732qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
 733{
 734        return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 735}
 736
 737int
 738qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 739{
 740        return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 741}
 742
 743int
 744qlafx00_loop_reset(scsi_qla_host_t *vha)
 745{
 746        int ret;
 747        struct fc_port *fcport;
 748        struct qla_hw_data *ha = vha->hw;
 749
 750        if (ql2xtargetreset) {
 751                list_for_each_entry(fcport, &vha->vp_fcports, list) {
 752                        if (fcport->port_type != FCT_TARGET)
 753                                continue;
 754
 755                        ret = ha->isp_ops->target_reset(fcport, 0, 0);
 756                        if (ret != QLA_SUCCESS) {
 757                                ql_dbg(ql_dbg_taskm, vha, 0x803d,
 758                                    "Bus Reset failed: Reset=%d "
 759                                    "d_id=%x.\n", ret, fcport->d_id.b24);
 760                        }
 761                }
 762        }
 763        return QLA_SUCCESS;
 764}
 765
 766int
 767qlafx00_iospace_config(struct qla_hw_data *ha)
 768{
 769        if (pci_request_selected_regions(ha->pdev, ha->bars,
 770            QLA2XXX_DRIVER_NAME)) {
 771                ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 772                    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 773                    pci_name(ha->pdev));
 774                goto iospace_error_exit;
 775        }
 776
 777        /* Use MMIO operations for all accesses. */
 778        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 779                ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 780                    "Invalid pci I/O region size (%s).\n",
 781                    pci_name(ha->pdev));
 782                goto iospace_error_exit;
 783        }
 784        if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 785                ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 786                    "Invalid PCI mem BAR0 region size (%s), aborting\n",
 787                        pci_name(ha->pdev));
 788                goto iospace_error_exit;
 789        }
 790
 791        ha->cregbase =
 792            ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 793        if (!ha->cregbase) {
 794                ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 795                    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 796                goto iospace_error_exit;
 797        }
 798
 799        if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 800                ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 801                    "region #2 not an MMIO resource (%s), aborting\n",
 802                    pci_name(ha->pdev));
 803                goto iospace_error_exit;
 804        }
 805        if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 806                ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 807                    "Invalid PCI mem BAR2 region size (%s), aborting\n",
 808                        pci_name(ha->pdev));
 809                goto iospace_error_exit;
 810        }
 811
 812        ha->iobase =
 813            ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 814        if (!ha->iobase) {
 815                ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 816                    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 817                goto iospace_error_exit;
 818        }
 819
 820        /* Determine queue resources */
 821        ha->max_req_queues = ha->max_rsp_queues = 1;
 822
 823        ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 824            "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 825            ha->bars, ha->cregbase, ha->iobase);
 826
 827        return 0;
 828
 829iospace_error_exit:
 830        return -ENOMEM;
 831}
 832
 833static void
 834qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 835{
 836        struct qla_hw_data *ha = vha->hw;
 837        struct req_que *req = ha->req_q_map[0];
 838        struct rsp_que *rsp = ha->rsp_q_map[0];
 839
 840        req->length_fx00 = req->length;
 841        req->ring_fx00 = req->ring;
 842        req->dma_fx00 = req->dma;
 843
 844        rsp->length_fx00 = rsp->length;
 845        rsp->ring_fx00 = rsp->ring;
 846        rsp->dma_fx00 = rsp->dma;
 847
 848        ql_dbg(ql_dbg_init, vha, 0x012d,
 849            "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 850            "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 851            req->length_fx00, (u64)req->dma_fx00);
 852
 853        ql_dbg(ql_dbg_init, vha, 0x012e,
 854            "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 855            "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 856            rsp->length_fx00, (u64)rsp->dma_fx00);
 857}
 858
 859static int
 860qlafx00_config_queues(struct scsi_qla_host *vha)
 861{
 862        struct qla_hw_data *ha = vha->hw;
 863        struct req_que *req = ha->req_q_map[0];
 864        struct rsp_que *rsp = ha->rsp_q_map[0];
 865        dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 866
 867        req->length = ha->req_que_len;
 868        req->ring = (void __force *)ha->iobase + ha->req_que_off;
 869        req->dma = bar2_hdl + ha->req_que_off;
 870        if ((!req->ring) || (req->length == 0)) {
 871                ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 872                    "Unable to allocate memory for req_ring\n");
 873                return QLA_FUNCTION_FAILED;
 874        }
 875
 876        ql_dbg(ql_dbg_init, vha, 0x0130,
 877            "req: %p req_ring pointer %p req len 0x%x "
 878            "req off 0x%x\n, req->dma: 0x%llx",
 879            req, req->ring, req->length,
 880            ha->req_que_off, (u64)req->dma);
 881
 882        rsp->length = ha->rsp_que_len;
 883        rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
 884        rsp->dma = bar2_hdl + ha->rsp_que_off;
 885        if ((!rsp->ring) || (rsp->length == 0)) {
 886                ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 887                    "Unable to allocate memory for rsp_ring\n");
 888                return QLA_FUNCTION_FAILED;
 889        }
 890
 891        ql_dbg(ql_dbg_init, vha, 0x0132,
 892            "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 893            "rsp off 0x%x, rsp->dma: 0x%llx\n",
 894            rsp, rsp->ring, rsp->length,
 895            ha->rsp_que_off, (u64)rsp->dma);
 896
 897        return QLA_SUCCESS;
 898}
 899
 900static int
 901qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 902{
 903        int rval = 0;
 904        unsigned long wtime;
 905        uint16_t wait_time;     /* Wait time */
 906        struct qla_hw_data *ha = vha->hw;
 907        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 908        uint32_t aenmbx, aenmbx7 = 0;
 909        uint32_t pseudo_aen;
 910        uint32_t state[5];
 911        bool done = false;
 912
 913        /* 30 seconds wait - Adjust if required */
 914        wait_time = 30;
 915
 916        pseudo_aen = RD_REG_DWORD(&reg->pseudoaen);
 917        if (pseudo_aen == 1) {
 918                aenmbx7 = RD_REG_DWORD(&reg->initval7);
 919                ha->mbx_intr_code = MSW(aenmbx7);
 920                ha->rqstq_intr_code = LSW(aenmbx7);
 921                rval = qlafx00_driver_shutdown(vha, 10);
 922                if (rval != QLA_SUCCESS)
 923                        qlafx00_soft_reset(vha);
 924        }
 925
 926        /* wait time before firmware ready */
 927        wtime = jiffies + (wait_time * HZ);
 928        do {
 929                aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 930                barrier();
 931                ql_dbg(ql_dbg_mbx, vha, 0x0133,
 932                    "aenmbx: 0x%x\n", aenmbx);
 933
 934                switch (aenmbx) {
 935                case MBA_FW_NOT_STARTED:
 936                case MBA_FW_STARTING:
 937                        break;
 938
 939                case MBA_SYSTEM_ERR:
 940                case MBA_REQ_TRANSFER_ERR:
 941                case MBA_RSP_TRANSFER_ERR:
 942                case MBA_FW_INIT_FAILURE:
 943                        qlafx00_soft_reset(vha);
 944                        break;
 945
 946                case MBA_FW_RESTART_CMPLT:
 947                        /* Set the mbx and rqstq intr code */
 948                        aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 949                        ha->mbx_intr_code = MSW(aenmbx7);
 950                        ha->rqstq_intr_code = LSW(aenmbx7);
 951                        ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 952                        ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 953                        ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 954                        ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 955                        WRT_REG_DWORD(&reg->aenmailbox0, 0);
 956                        RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 957                        ql_dbg(ql_dbg_init, vha, 0x0134,
 958                            "f/w returned mbx_intr_code: 0x%x, "
 959                            "rqstq_intr_code: 0x%x\n",
 960                            ha->mbx_intr_code, ha->rqstq_intr_code);
 961                        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 962                        rval = QLA_SUCCESS;
 963                        done = true;
 964                        break;
 965
 966                default:
 967                        if ((aenmbx & 0xFF00) == MBA_FW_INIT_INPROGRESS)
 968                                break;
 969
 970                        /* If fw is apparently not ready. In order to continue,
 971                         * we might need to issue Mbox cmd, but the problem is
 972                         * that the DoorBell vector values that come with the
 973                         * 8060 AEN are most likely gone by now (and thus no
 974                         * bell would be rung on the fw side when mbox cmd is
 975                         * issued). We have to therefore grab the 8060 AEN
 976                         * shadow regs (filled in by FW when the last 8060
 977                         * AEN was being posted).
 978                         * Do the following to determine what is needed in
 979                         * order to get the FW ready:
 980                         * 1. reload the 8060 AEN values from the shadow regs
 981                         * 2. clear int status to get rid of possible pending
 982                         *    interrupts
 983                         * 3. issue Get FW State Mbox cmd to determine fw state
 984                         * Set the mbx and rqstq intr code from Shadow Regs
 985                         */
 986                        aenmbx7 = RD_REG_DWORD(&reg->initval7);
 987                        ha->mbx_intr_code = MSW(aenmbx7);
 988                        ha->rqstq_intr_code = LSW(aenmbx7);
 989                        ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 990                        ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 991                        ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 992                        ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 993                        ql_dbg(ql_dbg_init, vha, 0x0135,
 994                            "f/w returned mbx_intr_code: 0x%x, "
 995                            "rqstq_intr_code: 0x%x\n",
 996                            ha->mbx_intr_code, ha->rqstq_intr_code);
 997                        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 998
 999                        /* Get the FW state */
1000                        rval = qlafx00_get_firmware_state(vha, state);
1001                        if (rval != QLA_SUCCESS) {
1002                                /* Retry if timer has not expired */
1003                                break;
1004                        }
1005
1006                        if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1007                                /* Firmware is waiting to be
1008                                 * initialized by driver
1009                                 */
1010                                rval = QLA_SUCCESS;
1011                                done = true;
1012                                break;
1013                        }
1014
1015                        /* Issue driver shutdown and wait until f/w recovers.
1016                         * Driver should continue to poll until 8060 AEN is
1017                         * received indicating firmware recovery.
1018                         */
1019                        ql_dbg(ql_dbg_init, vha, 0x0136,
1020                            "Sending Driver shutdown fw_state 0x%x\n",
1021                            state[0]);
1022
1023                        rval = qlafx00_driver_shutdown(vha, 10);
1024                        if (rval != QLA_SUCCESS) {
1025                                rval = QLA_FUNCTION_FAILED;
1026                                break;
1027                        }
1028                        msleep(500);
1029
1030                        wtime = jiffies + (wait_time * HZ);
1031                        break;
1032                }
1033
1034                if (!done) {
1035                        if (time_after_eq(jiffies, wtime)) {
1036                                ql_dbg(ql_dbg_init, vha, 0x0137,
1037                                    "Init f/w failed: aen[7]: 0x%x\n",
1038                                    RD_REG_DWORD(&reg->aenmailbox7));
1039                                rval = QLA_FUNCTION_FAILED;
1040                                done = true;
1041                                break;
1042                        }
1043                        /* Delay for a while */
1044                        msleep(500);
1045                }
1046        } while (!done);
1047
1048        if (rval)
1049                ql_dbg(ql_dbg_init, vha, 0x0138,
1050                    "%s **** FAILED ****.\n", __func__);
1051        else
1052                ql_dbg(ql_dbg_init, vha, 0x0139,
1053                    "%s **** SUCCESS ****.\n", __func__);
1054
1055        return rval;
1056}
1057
1058/*
1059 * qlafx00_fw_ready() - Waits for firmware ready.
1060 * @ha: HA context
1061 *
1062 * Returns 0 on success.
1063 */
1064int
1065qlafx00_fw_ready(scsi_qla_host_t *vha)
1066{
1067        int             rval;
1068        unsigned long   wtime;
1069        uint16_t        wait_time;      /* Wait time if loop is coming ready */
1070        uint32_t        state[5];
1071
1072        rval = QLA_SUCCESS;
1073
1074        wait_time = 10;
1075
1076        /* wait time before firmware ready */
1077        wtime = jiffies + (wait_time * HZ);
1078
1079        /* Wait for ISP to finish init */
1080        if (!vha->flags.init_done)
1081                ql_dbg(ql_dbg_init, vha, 0x013a,
1082                    "Waiting for init to complete...\n");
1083
1084        do {
1085                rval = qlafx00_get_firmware_state(vha, state);
1086
1087                if (rval == QLA_SUCCESS) {
1088                        if (state[0] == FSTATE_FX00_INITIALIZED) {
1089                                ql_dbg(ql_dbg_init, vha, 0x013b,
1090                                    "fw_state=%x\n", state[0]);
1091                                rval = QLA_SUCCESS;
1092                                        break;
1093                        }
1094                }
1095                rval = QLA_FUNCTION_FAILED;
1096
1097                if (time_after_eq(jiffies, wtime))
1098                        break;
1099
1100                /* Delay for a while */
1101                msleep(500);
1102
1103                ql_dbg(ql_dbg_init, vha, 0x013c,
1104                    "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1105        } while (1);
1106
1107
1108        if (rval)
1109                ql_dbg(ql_dbg_init, vha, 0x013d,
1110                    "Firmware ready **** FAILED ****.\n");
1111        else
1112                ql_dbg(ql_dbg_init, vha, 0x013e,
1113                    "Firmware ready **** SUCCESS ****.\n");
1114
1115        return rval;
1116}
1117
1118static int
1119qlafx00_find_all_targets(scsi_qla_host_t *vha,
1120        struct list_head *new_fcports)
1121{
1122        int             rval;
1123        uint16_t        tgt_id;
1124        fc_port_t       *fcport, *new_fcport;
1125        int             found;
1126        struct qla_hw_data *ha = vha->hw;
1127
1128        rval = QLA_SUCCESS;
1129
1130        if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1131                return QLA_FUNCTION_FAILED;
1132
1133        if ((atomic_read(&vha->loop_down_timer) ||
1134             STATE_TRANSITION(vha))) {
1135                atomic_set(&vha->loop_down_timer, 0);
1136                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1137                return QLA_FUNCTION_FAILED;
1138        }
1139
1140        ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1141            "Listing Target bit map...\n");
1142        ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha, 0x2089,
1143            ha->gid_list, 32);
1144
1145        /* Allocate temporary rmtport for any new rmtports discovered. */
1146        new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1147        if (new_fcport == NULL)
1148                return QLA_MEMORY_ALLOC_FAILED;
1149
1150        for_each_set_bit(tgt_id, (void *)ha->gid_list,
1151            QLAFX00_TGT_NODE_LIST_SIZE) {
1152
1153                /* Send get target node info */
1154                new_fcport->tgt_id = tgt_id;
1155                rval = qlafx00_fx_disc(vha, new_fcport,
1156                    FXDISC_GET_TGT_NODE_INFO);
1157                if (rval != QLA_SUCCESS) {
1158                        ql_log(ql_log_warn, vha, 0x208a,
1159                            "Target info scan failed -- assuming zero-entry "
1160                            "result...\n");
1161                        continue;
1162                }
1163
1164                /* Locate matching device in database. */
1165                found = 0;
1166                list_for_each_entry(fcport, &vha->vp_fcports, list) {
1167                        if (memcmp(new_fcport->port_name,
1168                            fcport->port_name, WWN_SIZE))
1169                                continue;
1170
1171                        found++;
1172
1173                        /*
1174                         * If tgt_id is same and state FCS_ONLINE, nothing
1175                         * changed.
1176                         */
1177                        if (fcport->tgt_id == new_fcport->tgt_id &&
1178                            atomic_read(&fcport->state) == FCS_ONLINE)
1179                                break;
1180
1181                        /*
1182                         * Tgt ID changed or device was marked to be updated.
1183                         */
1184                        ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1185                            "TGT-ID Change(%s): Present tgt id: "
1186                            "0x%x state: 0x%x "
1187                            "wwnn = %llx wwpn = %llx.\n",
1188                            __func__, fcport->tgt_id,
1189                            atomic_read(&fcport->state),
1190                            (unsigned long long)wwn_to_u64(fcport->node_name),
1191                            (unsigned long long)wwn_to_u64(fcport->port_name));
1192
1193                        ql_log(ql_log_info, vha, 0x208c,
1194                            "TGT-ID Announce(%s): Discovered tgt "
1195                            "id 0x%x wwnn = %llx "
1196                            "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1197                            (unsigned long long)
1198                            wwn_to_u64(new_fcport->node_name),
1199                            (unsigned long long)
1200                            wwn_to_u64(new_fcport->port_name));
1201
1202                        if (atomic_read(&fcport->state) != FCS_ONLINE) {
1203                                fcport->old_tgt_id = fcport->tgt_id;
1204                                fcport->tgt_id = new_fcport->tgt_id;
1205                                ql_log(ql_log_info, vha, 0x208d,
1206                                   "TGT-ID: New fcport Added: %p\n", fcport);
1207                                qla2x00_update_fcport(vha, fcport);
1208                        } else {
1209                                ql_log(ql_log_info, vha, 0x208e,
1210                                    " Existing TGT-ID %x did not get "
1211                                    " offline event from firmware.\n",
1212                                    fcport->old_tgt_id);
1213                                qla2x00_mark_device_lost(vha, fcport, 0, 0);
1214                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1215                                kfree(new_fcport);
1216                                return rval;
1217                        }
1218                        break;
1219                }
1220
1221                if (found)
1222                        continue;
1223
1224                /* If device was not in our fcports list, then add it. */
1225                list_add_tail(&new_fcport->list, new_fcports);
1226
1227                /* Allocate a new replacement fcport. */
1228                new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1229                if (new_fcport == NULL)
1230                        return QLA_MEMORY_ALLOC_FAILED;
1231        }
1232
1233        kfree(new_fcport);
1234        return rval;
1235}
1236
1237/*
1238 * qlafx00_configure_all_targets
1239 *      Setup target devices with node ID's.
1240 *
1241 * Input:
1242 *      ha = adapter block pointer.
1243 *
1244 * Returns:
1245 *      0 = success.
1246 *      BIT_0 = error
1247 */
1248static int
1249qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1250{
1251        int rval;
1252        fc_port_t *fcport, *rmptemp;
1253        LIST_HEAD(new_fcports);
1254
1255        rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1256            FXDISC_GET_TGT_NODE_LIST);
1257        if (rval != QLA_SUCCESS) {
1258                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1259                return rval;
1260        }
1261
1262        rval = qlafx00_find_all_targets(vha, &new_fcports);
1263        if (rval != QLA_SUCCESS) {
1264                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1265                return rval;
1266        }
1267
1268        /*
1269         * Delete all previous devices marked lost.
1270         */
1271        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1272                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1273                        break;
1274
1275                if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1276                        if (fcport->port_type != FCT_INITIATOR)
1277                                qla2x00_mark_device_lost(vha, fcport, 0, 0);
1278                }
1279        }
1280
1281        /*
1282         * Add the new devices to our devices list.
1283         */
1284        list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1285                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1286                        break;
1287
1288                qla2x00_update_fcport(vha, fcport);
1289                list_move_tail(&fcport->list, &vha->vp_fcports);
1290                ql_log(ql_log_info, vha, 0x208f,
1291                    "Attach new target id 0x%x wwnn = %llx "
1292                    "wwpn = %llx.\n",
1293                    fcport->tgt_id,
1294                    (unsigned long long)wwn_to_u64(fcport->node_name),
1295                    (unsigned long long)wwn_to_u64(fcport->port_name));
1296        }
1297
1298        /* Free all new device structures not processed. */
1299        list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1300                list_del(&fcport->list);
1301                kfree(fcport);
1302        }
1303
1304        return rval;
1305}
1306
1307/*
1308 * qlafx00_configure_devices
1309 *      Updates Fibre Channel Device Database with what is actually on loop.
1310 *
1311 * Input:
1312 *      ha                = adapter block pointer.
1313 *
1314 * Returns:
1315 *      0 = success.
1316 *      1 = error.
1317 *      2 = database was full and device was not configured.
1318 */
1319int
1320qlafx00_configure_devices(scsi_qla_host_t *vha)
1321{
1322        int  rval;
1323        unsigned long flags;
1324
1325        rval = QLA_SUCCESS;
1326
1327        flags = vha->dpc_flags;
1328
1329        ql_dbg(ql_dbg_disc, vha, 0x2090,
1330            "Configure devices -- dpc flags =0x%lx\n", flags);
1331
1332        rval = qlafx00_configure_all_targets(vha);
1333
1334        if (rval == QLA_SUCCESS) {
1335                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1336                        rval = QLA_FUNCTION_FAILED;
1337                } else {
1338                        atomic_set(&vha->loop_state, LOOP_READY);
1339                        ql_log(ql_log_info, vha, 0x2091,
1340                            "Device Ready\n");
1341                }
1342        }
1343
1344        if (rval) {
1345                ql_dbg(ql_dbg_disc, vha, 0x2092,
1346                    "%s *** FAILED ***.\n", __func__);
1347        } else {
1348                ql_dbg(ql_dbg_disc, vha, 0x2093,
1349                    "%s: exiting normally.\n", __func__);
1350        }
1351        return rval;
1352}
1353
1354static void
1355qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
1356{
1357        struct qla_hw_data *ha = vha->hw;
1358        fc_port_t *fcport;
1359
1360        vha->flags.online = 0;
1361        ha->mr.fw_hbt_en = 0;
1362
1363        if (!critemp) {
1364                ha->flags.chip_reset_done = 0;
1365                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1366                vha->qla_stats.total_isp_aborts++;
1367                ql_log(ql_log_info, vha, 0x013f,
1368                    "Performing ISP error recovery - ha = %p.\n", ha);
1369                ha->isp_ops->reset_chip(vha);
1370        }
1371
1372        if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1373                atomic_set(&vha->loop_state, LOOP_DOWN);
1374                atomic_set(&vha->loop_down_timer,
1375                    QLAFX00_LOOP_DOWN_TIME);
1376        } else {
1377                if (!atomic_read(&vha->loop_down_timer))
1378                        atomic_set(&vha->loop_down_timer,
1379                            QLAFX00_LOOP_DOWN_TIME);
1380        }
1381
1382        /* Clear all async request states across all VPs. */
1383        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1384                fcport->flags = 0;
1385                if (atomic_read(&fcport->state) == FCS_ONLINE)
1386                        qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1387        }
1388
1389        if (!ha->flags.eeh_busy) {
1390                if (critemp) {
1391                        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
1392                } else {
1393                        /* Requeue all commands in outstanding command list. */
1394                        qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1395                }
1396        }
1397
1398        qla2x00_free_irqs(vha);
1399        if (critemp)
1400                set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
1401        else
1402                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1403
1404        /* Clear the Interrupts */
1405        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1406
1407        ql_log(ql_log_info, vha, 0x0140,
1408            "%s Done done - ha=%p.\n", __func__, ha);
1409}
1410
1411/**
1412 * qlafx00_init_response_q_entries() - Initializes response queue entries.
1413 * @rsp: response queue
1414 *
1415 * Beginning of request ring has initialization control block already built
1416 * by nvram config routine.
1417 *
1418 * Returns 0 on success.
1419 */
1420void
1421qlafx00_init_response_q_entries(struct rsp_que *rsp)
1422{
1423        uint16_t cnt;
1424        response_t *pkt;
1425
1426        rsp->ring_ptr = rsp->ring;
1427        rsp->ring_index    = 0;
1428        rsp->status_srb = NULL;
1429        pkt = rsp->ring_ptr;
1430        for (cnt = 0; cnt < rsp->length; cnt++) {
1431                pkt->signature = RESPONSE_PROCESSED;
1432                WRT_REG_DWORD((void __force __iomem *)&pkt->signature,
1433                    RESPONSE_PROCESSED);
1434                pkt++;
1435        }
1436}
1437
1438int
1439qlafx00_rescan_isp(scsi_qla_host_t *vha)
1440{
1441        uint32_t status = QLA_FUNCTION_FAILED;
1442        struct qla_hw_data *ha = vha->hw;
1443        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1444        uint32_t aenmbx7;
1445
1446        qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1447
1448        aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1449        ha->mbx_intr_code = MSW(aenmbx7);
1450        ha->rqstq_intr_code = LSW(aenmbx7);
1451        ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1452        ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1453        ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1454        ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1455
1456        ql_dbg(ql_dbg_disc, vha, 0x2094,
1457            "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1458            " Req que offset 0x%x Rsp que offset 0x%x\n",
1459            ha->mbx_intr_code, ha->rqstq_intr_code,
1460            ha->req_que_off, ha->rsp_que_len);
1461
1462        /* Clear the Interrupts */
1463        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1464
1465        status = qla2x00_init_rings(vha);
1466        if (!status) {
1467                vha->flags.online = 1;
1468
1469                /* if no cable then assume it's good */
1470                if ((vha->device_flags & DFLG_NO_CABLE))
1471                        status = 0;
1472                /* Register system information */
1473                if (qlafx00_fx_disc(vha,
1474                    &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1475                        ql_dbg(ql_dbg_disc, vha, 0x2095,
1476                            "failed to register host info\n");
1477        }
1478        scsi_unblock_requests(vha->host);
1479        return status;
1480}
1481
1482void
1483qlafx00_timer_routine(scsi_qla_host_t *vha)
1484{
1485        struct qla_hw_data *ha = vha->hw;
1486        uint32_t fw_heart_beat;
1487        uint32_t aenmbx0;
1488        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1489        uint32_t tempc;
1490
1491        /* Check firmware health */
1492        if (ha->mr.fw_hbt_cnt)
1493                ha->mr.fw_hbt_cnt--;
1494        else {
1495                if ((!ha->flags.mr_reset_hdlr_active) &&
1496                    (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1497                    (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1498                    (ha->mr.fw_hbt_en)) {
1499                        fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1500                        if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1501                                ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1502                                ha->mr.fw_hbt_miss_cnt = 0;
1503                        } else {
1504                                ha->mr.fw_hbt_miss_cnt++;
1505                                if (ha->mr.fw_hbt_miss_cnt ==
1506                                    QLAFX00_HEARTBEAT_MISS_CNT) {
1507                                        set_bit(ISP_ABORT_NEEDED,
1508                                            &vha->dpc_flags);
1509                                        qla2xxx_wake_dpc(vha);
1510                                        ha->mr.fw_hbt_miss_cnt = 0;
1511                                }
1512                        }
1513                }
1514                ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1515        }
1516
1517        if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1518                /* Reset recovery to be performed in timer routine */
1519                aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1520                if (ha->mr.fw_reset_timer_exp) {
1521                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1522                        qla2xxx_wake_dpc(vha);
1523                        ha->mr.fw_reset_timer_exp = 0;
1524                } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1525                        /* Wake up DPC to rescan the targets */
1526                        set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1527                        clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1528                        qla2xxx_wake_dpc(vha);
1529                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1530                } else if ((aenmbx0 == MBA_FW_STARTING) &&
1531                    (!ha->mr.fw_hbt_en)) {
1532                        ha->mr.fw_hbt_en = 1;
1533                } else if (!ha->mr.fw_reset_timer_tick) {
1534                        if (aenmbx0 == ha->mr.old_aenmbx0_state)
1535                                ha->mr.fw_reset_timer_exp = 1;
1536                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1537                } else if (aenmbx0 == 0xFFFFFFFF) {
1538                        uint32_t data0, data1;
1539
1540                        data0 = QLAFX00_RD_REG(ha,
1541                            QLAFX00_BAR1_BASE_ADDR_REG);
1542                        data1 = QLAFX00_RD_REG(ha,
1543                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1544
1545                        data0 &= 0xffff0000;
1546                        data1 &= 0x0000ffff;
1547
1548                        QLAFX00_WR_REG(ha,
1549                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1550                            (data0 | data1));
1551                } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1552                        ha->mr.fw_reset_timer_tick =
1553                            QLAFX00_MAX_RESET_INTERVAL;
1554                } else if (aenmbx0 == MBA_FW_RESET_FCT) {
1555                        ha->mr.fw_reset_timer_tick =
1556                            QLAFX00_MAX_RESET_INTERVAL;
1557                }
1558                if (ha->mr.old_aenmbx0_state != aenmbx0) {
1559                        ha->mr.old_aenmbx0_state = aenmbx0;
1560                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1561                }
1562                ha->mr.fw_reset_timer_tick--;
1563        }
1564        if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
1565                /*
1566                 * Critical temperature recovery to be
1567                 * performed in timer routine
1568                 */
1569                if (ha->mr.fw_critemp_timer_tick == 0) {
1570                        tempc = QLAFX00_GET_TEMPERATURE(ha);
1571                        ql_dbg(ql_dbg_timer, vha, 0x6012,
1572                            "ISPFx00(%s): Critical temp timer, "
1573                            "current SOC temperature: %d\n",
1574                            __func__, tempc);
1575                        if (tempc < ha->mr.critical_temperature) {
1576                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1577                                clear_bit(FX00_CRITEMP_RECOVERY,
1578                                    &vha->dpc_flags);
1579                                qla2xxx_wake_dpc(vha);
1580                        }
1581                        ha->mr.fw_critemp_timer_tick =
1582                            QLAFX00_CRITEMP_INTERVAL;
1583                } else {
1584                        ha->mr.fw_critemp_timer_tick--;
1585                }
1586        }
1587        if (ha->mr.host_info_resend) {
1588                /*
1589                 * Incomplete host info might be sent to firmware
1590                 * durinng system boot - info should be resend
1591                 */
1592                if (ha->mr.hinfo_resend_timer_tick == 0) {
1593                        ha->mr.host_info_resend = false;
1594                        set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
1595                        ha->mr.hinfo_resend_timer_tick =
1596                            QLAFX00_HINFO_RESEND_INTERVAL;
1597                        qla2xxx_wake_dpc(vha);
1598                } else {
1599                        ha->mr.hinfo_resend_timer_tick--;
1600                }
1601        }
1602
1603}
1604
1605/*
1606 *  qlfx00a_reset_initialize
1607 *      Re-initialize after a iSA device reset.
1608 *
1609 * Input:
1610 *      ha  = adapter block pointer.
1611 *
1612 * Returns:
1613 *      0 = success
1614 */
1615int
1616qlafx00_reset_initialize(scsi_qla_host_t *vha)
1617{
1618        struct qla_hw_data *ha = vha->hw;
1619
1620        if (vha->device_flags & DFLG_DEV_FAILED) {
1621                ql_dbg(ql_dbg_init, vha, 0x0142,
1622                    "Device in failed state\n");
1623                return QLA_SUCCESS;
1624        }
1625
1626        ha->flags.mr_reset_hdlr_active = 1;
1627
1628        if (vha->flags.online) {
1629                scsi_block_requests(vha->host);
1630                qlafx00_abort_isp_cleanup(vha, false);
1631        }
1632
1633        ql_log(ql_log_info, vha, 0x0143,
1634            "(%s): succeeded.\n", __func__);
1635        ha->flags.mr_reset_hdlr_active = 0;
1636        return QLA_SUCCESS;
1637}
1638
1639/*
1640 *  qlafx00_abort_isp
1641 *      Resets ISP and aborts all outstanding commands.
1642 *
1643 * Input:
1644 *      ha  = adapter block pointer.
1645 *
1646 * Returns:
1647 *      0 = success
1648 */
1649int
1650qlafx00_abort_isp(scsi_qla_host_t *vha)
1651{
1652        struct qla_hw_data *ha = vha->hw;
1653
1654        if (vha->flags.online) {
1655                if (unlikely(pci_channel_offline(ha->pdev) &&
1656                    ha->flags.pci_channel_io_perm_failure)) {
1657                        clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1658                        return QLA_SUCCESS;
1659                }
1660
1661                scsi_block_requests(vha->host);
1662                qlafx00_abort_isp_cleanup(vha, false);
1663        } else {
1664                scsi_block_requests(vha->host);
1665                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1666                vha->qla_stats.total_isp_aborts++;
1667                ha->isp_ops->reset_chip(vha);
1668                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1669                /* Clear the Interrupts */
1670                QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1671        }
1672
1673        ql_log(ql_log_info, vha, 0x0145,
1674            "(%s): succeeded.\n", __func__);
1675
1676        return QLA_SUCCESS;
1677}
1678
1679static inline fc_port_t*
1680qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1681{
1682        fc_port_t       *fcport;
1683
1684        /* Check for matching device in remote port list. */
1685        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1686                if (fcport->tgt_id == tgt_id) {
1687                        ql_dbg(ql_dbg_async, vha, 0x5072,
1688                            "Matching fcport(%p) found with TGT-ID: 0x%x "
1689                            "and Remote TGT_ID: 0x%x\n",
1690                            fcport, fcport->tgt_id, tgt_id);
1691                        return fcport;
1692                }
1693        }
1694        return NULL;
1695}
1696
1697static void
1698qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1699{
1700        fc_port_t       *fcport;
1701
1702        ql_log(ql_log_info, vha, 0x5073,
1703            "Detach TGT-ID: 0x%x\n", tgt_id);
1704
1705        fcport = qlafx00_get_fcport(vha, tgt_id);
1706        if (!fcport)
1707                return;
1708
1709        qla2x00_mark_device_lost(vha, fcport, 0, 0);
1710
1711        return;
1712}
1713
1714int
1715qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1716{
1717        int rval = 0;
1718        uint32_t aen_code, aen_data;
1719
1720        aen_code = FCH_EVT_VENDOR_UNIQUE;
1721        aen_data = evt->u.aenfx.evtcode;
1722
1723        switch (evt->u.aenfx.evtcode) {
1724        case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1725                if (evt->u.aenfx.mbx[1] == 0) {
1726                        if (evt->u.aenfx.mbx[2] == 1) {
1727                                if (!vha->flags.fw_tgt_reported)
1728                                        vha->flags.fw_tgt_reported = 1;
1729                                atomic_set(&vha->loop_down_timer, 0);
1730                                atomic_set(&vha->loop_state, LOOP_UP);
1731                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1732                                qla2xxx_wake_dpc(vha);
1733                        } else if (evt->u.aenfx.mbx[2] == 2) {
1734                                qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1735                        }
1736                } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1737                        if (evt->u.aenfx.mbx[2] == 1) {
1738                                if (!vha->flags.fw_tgt_reported)
1739                                        vha->flags.fw_tgt_reported = 1;
1740                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1741                        } else if (evt->u.aenfx.mbx[2] == 2) {
1742                                vha->device_flags |= DFLG_NO_CABLE;
1743                                qla2x00_mark_all_devices_lost(vha, 1);
1744                        }
1745                }
1746                break;
1747        case QLAFX00_MBA_LINK_UP:
1748                aen_code = FCH_EVT_LINKUP;
1749                aen_data = 0;
1750                break;
1751        case QLAFX00_MBA_LINK_DOWN:
1752                aen_code = FCH_EVT_LINKDOWN;
1753                aen_data = 0;
1754                break;
1755        case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
1756                ql_log(ql_log_info, vha, 0x5082,
1757                    "Process critical temperature event "
1758                    "aenmb[0]: %x\n",
1759                    evt->u.aenfx.evtcode);
1760                scsi_block_requests(vha->host);
1761                qlafx00_abort_isp_cleanup(vha, true);
1762                scsi_unblock_requests(vha->host);
1763                break;
1764        }
1765
1766        fc_host_post_event(vha->host, fc_get_event_number(),
1767            aen_code, aen_data);
1768
1769        return rval;
1770}
1771
1772static void
1773qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1774{
1775        u64 port_name = 0, node_name = 0;
1776
1777        port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1778        node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1779
1780        fc_host_node_name(vha->host) = node_name;
1781        fc_host_port_name(vha->host) = port_name;
1782        if (!pinfo->port_type)
1783                vha->hw->current_topology = ISP_CFG_F;
1784        if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1785                atomic_set(&vha->loop_state, LOOP_READY);
1786        else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1787                atomic_set(&vha->loop_state, LOOP_DOWN);
1788        vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1789}
1790
1791static void
1792qla2x00_fxdisc_iocb_timeout(void *data)
1793{
1794        srb_t *sp = data;
1795        struct srb_iocb *lio = &sp->u.iocb_cmd;
1796
1797        complete(&lio->u.fxiocb.fxiocb_comp);
1798}
1799
1800static void qla2x00_fxdisc_sp_done(srb_t *sp, int res)
1801{
1802        struct srb_iocb *lio = &sp->u.iocb_cmd;
1803
1804        complete(&lio->u.fxiocb.fxiocb_comp);
1805}
1806
1807int
1808qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
1809{
1810        srb_t *sp;
1811        struct srb_iocb *fdisc;
1812        int rval = QLA_FUNCTION_FAILED;
1813        struct qla_hw_data *ha = vha->hw;
1814        struct host_system_info *phost_info;
1815        struct register_host_info *preg_hsi;
1816        struct new_utsname *p_sysid = NULL;
1817
1818        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1819        if (!sp)
1820                goto done;
1821
1822        sp->type = SRB_FXIOCB_DCMD;
1823        sp->name = "fxdisc";
1824
1825        fdisc = &sp->u.iocb_cmd;
1826        fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1827        qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1828
1829        switch (fx_type) {
1830        case FXDISC_GET_CONFIG_INFO:
1831        fdisc->u.fxiocb.flags =
1832                    SRB_FXDISC_RESP_DMA_VALID;
1833                fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1834                break;
1835        case FXDISC_GET_PORT_INFO:
1836                fdisc->u.fxiocb.flags =
1837                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1838                fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1839                fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
1840                break;
1841        case FXDISC_GET_TGT_NODE_INFO:
1842                fdisc->u.fxiocb.flags =
1843                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1844                fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1845                fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
1846                break;
1847        case FXDISC_GET_TGT_NODE_LIST:
1848                fdisc->u.fxiocb.flags =
1849                    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1850                fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1851                break;
1852        case FXDISC_REG_HOST_INFO:
1853                fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1854                fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1855                p_sysid = utsname();
1856                if (!p_sysid) {
1857                        ql_log(ql_log_warn, vha, 0x303c,
1858                            "Not able to get the system information\n");
1859                        goto done_free_sp;
1860                }
1861                break;
1862        case FXDISC_ABORT_IOCTL:
1863        default:
1864                break;
1865        }
1866
1867        if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1868                fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1869                    fdisc->u.fxiocb.req_len,
1870                    &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1871                if (!fdisc->u.fxiocb.req_addr)
1872                        goto done_free_sp;
1873
1874                if (fx_type == FXDISC_REG_HOST_INFO) {
1875                        preg_hsi = (struct register_host_info *)
1876                                fdisc->u.fxiocb.req_addr;
1877                        phost_info = &preg_hsi->hsi;
1878                        memset(preg_hsi, 0, sizeof(struct register_host_info));
1879                        phost_info->os_type = OS_TYPE_LINUX;
1880                        strlcpy(phost_info->sysname, p_sysid->sysname,
1881                                sizeof(phost_info->sysname));
1882                        strlcpy(phost_info->nodename, p_sysid->nodename,
1883                                sizeof(phost_info->nodename));
1884                        if (!strcmp(phost_info->nodename, "(none)"))
1885                                ha->mr.host_info_resend = true;
1886                        strlcpy(phost_info->release, p_sysid->release,
1887                                sizeof(phost_info->release));
1888                        strlcpy(phost_info->version, p_sysid->version,
1889                                sizeof(phost_info->version));
1890                        strlcpy(phost_info->machine, p_sysid->machine,
1891                                sizeof(phost_info->machine));
1892                        strlcpy(phost_info->domainname, p_sysid->domainname,
1893                                sizeof(phost_info->domainname));
1894                        strlcpy(phost_info->hostdriver, QLA2XXX_VERSION,
1895                                sizeof(phost_info->hostdriver));
1896                        preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
1897                        ql_dbg(ql_dbg_init, vha, 0x0149,
1898                            "ISP%04X: Host registration with firmware\n",
1899                            ha->pdev->device);
1900                        ql_dbg(ql_dbg_init, vha, 0x014a,
1901                            "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1902                            phost_info->os_type,
1903                            phost_info->sysname,
1904                            phost_info->nodename);
1905                        ql_dbg(ql_dbg_init, vha, 0x014b,
1906                            "release = '%s', version = '%s'\n",
1907                            phost_info->release,
1908                            phost_info->version);
1909                        ql_dbg(ql_dbg_init, vha, 0x014c,
1910                            "machine = '%s' "
1911                            "domainname = '%s', hostdriver = '%s'\n",
1912                            phost_info->machine,
1913                            phost_info->domainname,
1914                            phost_info->hostdriver);
1915                        ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1916                            phost_info, sizeof(*phost_info));
1917                }
1918        }
1919
1920        if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1921                fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1922                    fdisc->u.fxiocb.rsp_len,
1923                    &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1924                if (!fdisc->u.fxiocb.rsp_addr)
1925                        goto done_unmap_req;
1926        }
1927
1928        fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1929        sp->done = qla2x00_fxdisc_sp_done;
1930
1931        rval = qla2x00_start_sp(sp);
1932        if (rval != QLA_SUCCESS)
1933                goto done_unmap_dma;
1934
1935        wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1936
1937        if (fx_type == FXDISC_GET_CONFIG_INFO) {
1938                struct config_info_data *pinfo =
1939                    (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1940                strlcpy(vha->hw->model_number, pinfo->model_num,
1941                        ARRAY_SIZE(vha->hw->model_number));
1942                strlcpy(vha->hw->model_desc, pinfo->model_description,
1943                        ARRAY_SIZE(vha->hw->model_desc));
1944                memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1945                    sizeof(vha->hw->mr.symbolic_name));
1946                memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1947                    sizeof(vha->hw->mr.serial_num));
1948                memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1949                    sizeof(vha->hw->mr.hw_version));
1950                memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1951                    sizeof(vha->hw->mr.fw_version));
1952                strim(vha->hw->mr.fw_version);
1953                memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1954                    sizeof(vha->hw->mr.uboot_version));
1955                memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1956                    sizeof(vha->hw->mr.fru_serial_num));
1957                vha->hw->mr.critical_temperature =
1958                    (pinfo->nominal_temp_value) ?
1959                    pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
1960                ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
1961                    QLAFX00_EXTENDED_IO_EN_MASK) != 0;
1962        } else if (fx_type == FXDISC_GET_PORT_INFO) {
1963                struct port_info_data *pinfo =
1964                    (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1965                memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1966                memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1967                vha->d_id.b.domain = pinfo->port_id[0];
1968                vha->d_id.b.area = pinfo->port_id[1];
1969                vha->d_id.b.al_pa = pinfo->port_id[2];
1970                qlafx00_update_host_attr(vha, pinfo);
1971                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1972                    pinfo, 16);
1973        } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1974                struct qlafx00_tgt_node_info *pinfo =
1975                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1976                memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1977                memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1978                fcport->port_type = FCT_TARGET;
1979                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1980                    pinfo, 16);
1981        } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1982                struct qlafx00_tgt_node_info *pinfo =
1983                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1984                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1985                    pinfo, 16);
1986                memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1987        } else if (fx_type == FXDISC_ABORT_IOCTL)
1988                fdisc->u.fxiocb.result =
1989                    (fdisc->u.fxiocb.result ==
1990                        cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
1991                    cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
1992
1993        rval = le32_to_cpu(fdisc->u.fxiocb.result);
1994
1995done_unmap_dma:
1996        if (fdisc->u.fxiocb.rsp_addr)
1997                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1998                    fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1999
2000done_unmap_req:
2001        if (fdisc->u.fxiocb.req_addr)
2002                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
2003                    fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
2004done_free_sp:
2005        sp->free(sp);
2006done:
2007        return rval;
2008}
2009
2010/*
2011 * qlafx00_initialize_adapter
2012 *      Initialize board.
2013 *
2014 * Input:
2015 *      ha = adapter block pointer.
2016 *
2017 * Returns:
2018 *      0 = success
2019 */
2020int
2021qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2022{
2023        int     rval;
2024        struct qla_hw_data *ha = vha->hw;
2025        uint32_t tempc;
2026
2027        /* Clear adapter flags. */
2028        vha->flags.online = 0;
2029        ha->flags.chip_reset_done = 0;
2030        vha->flags.reset_active = 0;
2031        ha->flags.pci_channel_io_perm_failure = 0;
2032        ha->flags.eeh_busy = 0;
2033        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2034        atomic_set(&vha->loop_state, LOOP_DOWN);
2035        vha->device_flags = DFLG_NO_CABLE;
2036        vha->dpc_flags = 0;
2037        vha->flags.management_server_logged_in = 0;
2038        ha->isp_abort_cnt = 0;
2039        ha->beacon_blink_led = 0;
2040
2041        set_bit(0, ha->req_qid_map);
2042        set_bit(0, ha->rsp_qid_map);
2043
2044        ql_dbg(ql_dbg_init, vha, 0x0147,
2045            "Configuring PCI space...\n");
2046
2047        rval = ha->isp_ops->pci_config(vha);
2048        if (rval) {
2049                ql_log(ql_log_warn, vha, 0x0148,
2050                    "Unable to configure PCI space.\n");
2051                return rval;
2052        }
2053
2054        rval = qlafx00_init_fw_ready(vha);
2055        if (rval != QLA_SUCCESS)
2056                return rval;
2057
2058        qlafx00_save_queue_ptrs(vha);
2059
2060        rval = qlafx00_config_queues(vha);
2061        if (rval != QLA_SUCCESS)
2062                return rval;
2063
2064        /*
2065         * Allocate the array of outstanding commands
2066         * now that we know the firmware resources.
2067         */
2068        rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2069        if (rval != QLA_SUCCESS)
2070                return rval;
2071
2072        rval = qla2x00_init_rings(vha);
2073        ha->flags.chip_reset_done = 1;
2074
2075        tempc = QLAFX00_GET_TEMPERATURE(ha);
2076        ql_dbg(ql_dbg_init, vha, 0x0152,
2077            "ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
2078            __func__, tempc);
2079
2080        return rval;
2081}
2082
2083uint32_t
2084qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2085                      char *buf)
2086{
2087        scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2088        int rval = QLA_FUNCTION_FAILED;
2089        uint32_t state[1];
2090
2091        if (qla2x00_reset_active(vha))
2092                ql_log(ql_log_warn, vha, 0x70ce,
2093                    "ISP reset active.\n");
2094        else if (!vha->hw->flags.eeh_busy) {
2095                rval = qlafx00_get_firmware_state(vha, state);
2096        }
2097        if (rval != QLA_SUCCESS)
2098                memset(state, -1, sizeof(state));
2099
2100        return state[0];
2101}
2102
2103void
2104qlafx00_get_host_speed(struct Scsi_Host *shost)
2105{
2106        struct qla_hw_data *ha = ((struct scsi_qla_host *)
2107                                        (shost_priv(shost)))->hw;
2108        u32 speed = FC_PORTSPEED_UNKNOWN;
2109
2110        switch (ha->link_data_rate) {
2111        case QLAFX00_PORT_SPEED_2G:
2112                speed = FC_PORTSPEED_2GBIT;
2113                break;
2114        case QLAFX00_PORT_SPEED_4G:
2115                speed = FC_PORTSPEED_4GBIT;
2116                break;
2117        case QLAFX00_PORT_SPEED_8G:
2118                speed = FC_PORTSPEED_8GBIT;
2119                break;
2120        case QLAFX00_PORT_SPEED_10G:
2121                speed = FC_PORTSPEED_10GBIT;
2122                break;
2123        }
2124        fc_host_speed(shost) = speed;
2125}
2126
2127/** QLAFX00 specific ISR implementation functions */
2128
2129static inline void
2130qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2131                     uint32_t sense_len, struct rsp_que *rsp, int res)
2132{
2133        struct scsi_qla_host *vha = sp->vha;
2134        struct scsi_cmnd *cp = GET_CMD_SP(sp);
2135        uint32_t track_sense_len;
2136
2137        SET_FW_SENSE_LEN(sp, sense_len);
2138
2139        if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2140                sense_len = SCSI_SENSE_BUFFERSIZE;
2141
2142        SET_CMD_SENSE_LEN(sp, sense_len);
2143        SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2144        track_sense_len = sense_len;
2145
2146        if (sense_len > par_sense_len)
2147                sense_len = par_sense_len;
2148
2149        memcpy(cp->sense_buffer, sense_data, sense_len);
2150
2151        SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2152
2153        SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2154        track_sense_len -= sense_len;
2155        SET_CMD_SENSE_LEN(sp, track_sense_len);
2156
2157        ql_dbg(ql_dbg_io, vha, 0x304d,
2158            "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2159            sense_len, par_sense_len, track_sense_len);
2160        if (GET_FW_SENSE_LEN(sp) > 0) {
2161                rsp->status_srb = sp;
2162                cp->result = res;
2163        }
2164
2165        if (sense_len) {
2166                ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2167                    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2168                    sp->vha->host_no, cp->device->id, cp->device->lun,
2169                    cp);
2170                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2171                    cp->sense_buffer, sense_len);
2172        }
2173}
2174
2175static void
2176qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2177                      struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2178                      __le16 sstatus, __le16 cpstatus)
2179{
2180        struct srb_iocb *tmf;
2181
2182        tmf = &sp->u.iocb_cmd;
2183        if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
2184            (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
2185                cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2186        tmf->u.tmf.comp_status = cpstatus;
2187        sp->done(sp, 0);
2188}
2189
2190static void
2191qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2192                         struct abort_iocb_entry_fx00 *pkt)
2193{
2194        const char func[] = "ABT_IOCB";
2195        srb_t *sp;
2196        struct srb_iocb *abt;
2197
2198        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2199        if (!sp)
2200                return;
2201
2202        abt = &sp->u.iocb_cmd;
2203        abt->u.abt.comp_status = pkt->tgt_id_sts;
2204        sp->done(sp, 0);
2205}
2206
2207static void
2208qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2209                         struct ioctl_iocb_entry_fx00 *pkt)
2210{
2211        const char func[] = "IOSB_IOCB";
2212        srb_t *sp;
2213        struct bsg_job *bsg_job;
2214        struct fc_bsg_reply *bsg_reply;
2215        struct srb_iocb *iocb_job;
2216        int res = 0;
2217        struct qla_mt_iocb_rsp_fx00 fstatus;
2218        uint8_t *fw_sts_ptr;
2219
2220        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2221        if (!sp)
2222                return;
2223
2224        if (sp->type == SRB_FXIOCB_DCMD) {
2225                iocb_job = &sp->u.iocb_cmd;
2226                iocb_job->u.fxiocb.seq_number = pkt->seq_no;
2227                iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
2228                iocb_job->u.fxiocb.result = pkt->status;
2229                if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2230                        iocb_job->u.fxiocb.req_data =
2231                            pkt->dataword_r;
2232        } else {
2233                bsg_job = sp->u.bsg_job;
2234                bsg_reply = bsg_job->reply;
2235
2236                memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2237
2238                fstatus.reserved_1 = pkt->reserved_0;
2239                fstatus.func_type = pkt->comp_func_num;
2240                fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2241                fstatus.ioctl_data = pkt->dataword_r;
2242                fstatus.adapid = pkt->adapid;
2243                fstatus.reserved_2 = pkt->dataword_r_extra;
2244                fstatus.res_count = pkt->residuallen;
2245                fstatus.status = pkt->status;
2246                fstatus.seq_number = pkt->seq_no;
2247                memcpy(fstatus.reserved_3,
2248                    pkt->reserved_2, 20 * sizeof(uint8_t));
2249
2250                fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
2251
2252                memcpy(fw_sts_ptr, &fstatus, sizeof(fstatus));
2253                bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2254                        sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2255
2256                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2257                    sp->vha, 0x5080, pkt, sizeof(*pkt));
2258
2259                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2260                    sp->vha, 0x5074,
2261                    fw_sts_ptr, sizeof(fstatus));
2262
2263                res = bsg_reply->result = DID_OK << 16;
2264                bsg_reply->reply_payload_rcv_len =
2265                    bsg_job->reply_payload.payload_len;
2266        }
2267        sp->done(sp, res);
2268}
2269
2270/**
2271 * qlafx00_status_entry() - Process a Status IOCB entry.
2272 * @vha: SCSI driver HA context
2273 * @rsp: response queue
2274 * @pkt: Entry pointer
2275 */
2276static void
2277qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2278{
2279        srb_t           *sp;
2280        fc_port_t       *fcport;
2281        struct scsi_cmnd *cp;
2282        struct sts_entry_fx00 *sts;
2283        __le16          comp_status;
2284        __le16          scsi_status;
2285        __le16          lscsi_status;
2286        int32_t         resid;
2287        uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2288            fw_resid_len;
2289        uint8_t         *rsp_info = NULL, *sense_data = NULL;
2290        struct qla_hw_data *ha = vha->hw;
2291        uint32_t hindex, handle;
2292        uint16_t que;
2293        struct req_que *req;
2294        int logit = 1;
2295        int res = 0;
2296
2297        sts = (struct sts_entry_fx00 *) pkt;
2298
2299        comp_status = sts->comp_status;
2300        scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2301        hindex = sts->handle;
2302        handle = LSW(hindex);
2303
2304        que = MSW(hindex);
2305        req = ha->req_q_map[que];
2306
2307        /* Validate handle. */
2308        if (handle < req->num_outstanding_cmds)
2309                sp = req->outstanding_cmds[handle];
2310        else
2311                sp = NULL;
2312
2313        if (sp == NULL) {
2314                ql_dbg(ql_dbg_io, vha, 0x3034,
2315                    "Invalid status handle (0x%x).\n", handle);
2316
2317                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2318                qla2xxx_wake_dpc(vha);
2319                return;
2320        }
2321
2322        if (sp->type == SRB_TM_CMD) {
2323                req->outstanding_cmds[handle] = NULL;
2324                qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2325                    scsi_status, comp_status);
2326                return;
2327        }
2328
2329        /* Fast path completion. */
2330        if (comp_status == CS_COMPLETE && scsi_status == 0) {
2331                qla2x00_process_completed_request(vha, req, handle);
2332                return;
2333        }
2334
2335        req->outstanding_cmds[handle] = NULL;
2336        cp = GET_CMD_SP(sp);
2337        if (cp == NULL) {
2338                ql_dbg(ql_dbg_io, vha, 0x3048,
2339                    "Command already returned (0x%x/%p).\n",
2340                    handle, sp);
2341
2342                return;
2343        }
2344
2345        lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2346
2347        fcport = sp->fcport;
2348
2349        sense_len = par_sense_len = rsp_info_len = resid_len =
2350                fw_resid_len = 0;
2351        if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
2352                sense_len = sts->sense_len;
2353        if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2354            | (uint16_t)SS_RESIDUAL_OVER)))
2355                resid_len = le32_to_cpu(sts->residual_len);
2356        if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2357                fw_resid_len = le32_to_cpu(sts->residual_len);
2358        rsp_info = sense_data = sts->data;
2359        par_sense_len = sizeof(sts->data);
2360
2361        /* Check for overrun. */
2362        if (comp_status == CS_COMPLETE &&
2363            scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
2364                comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2365
2366        /*
2367         * Based on Host and scsi status generate status code for Linux
2368         */
2369        switch (le16_to_cpu(comp_status)) {
2370        case CS_COMPLETE:
2371        case CS_QUEUE_FULL:
2372                if (scsi_status == 0) {
2373                        res = DID_OK << 16;
2374                        break;
2375                }
2376                if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2377                    | (uint16_t)SS_RESIDUAL_OVER))) {
2378                        resid = resid_len;
2379                        scsi_set_resid(cp, resid);
2380
2381                        if (!lscsi_status &&
2382                            ((unsigned)(scsi_bufflen(cp) - resid) <
2383                             cp->underflow)) {
2384                                ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2385                                    "Mid-layer underflow "
2386                                    "detected (0x%x of 0x%x bytes).\n",
2387                                    resid, scsi_bufflen(cp));
2388
2389                                res = DID_ERROR << 16;
2390                                break;
2391                        }
2392                }
2393                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2394
2395                if (lscsi_status ==
2396                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2397                        ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2398                            "QUEUE FULL detected.\n");
2399                        break;
2400                }
2401                logit = 0;
2402                if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2403                        break;
2404
2405                memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2406                if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2407                        break;
2408
2409                qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2410                    rsp, res);
2411                break;
2412
2413        case CS_DATA_UNDERRUN:
2414                /* Use F/W calculated residual length. */
2415                if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2416                        resid = fw_resid_len;
2417                else
2418                        resid = resid_len;
2419                scsi_set_resid(cp, resid);
2420                if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2421                        if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2422                            && fw_resid_len != resid_len) {
2423                                ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2424                                    "Dropped frame(s) detected "
2425                                    "(0x%x of 0x%x bytes).\n",
2426                                    resid, scsi_bufflen(cp));
2427
2428                                res = DID_ERROR << 16 |
2429                                    le16_to_cpu(lscsi_status);
2430                                goto check_scsi_status;
2431                        }
2432
2433                        if (!lscsi_status &&
2434                            ((unsigned)(scsi_bufflen(cp) - resid) <
2435                            cp->underflow)) {
2436                                ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2437                                    "Mid-layer underflow "
2438                                    "detected (0x%x of 0x%x bytes, "
2439                                    "cp->underflow: 0x%x).\n",
2440                                    resid, scsi_bufflen(cp), cp->underflow);
2441
2442                                res = DID_ERROR << 16;
2443                                break;
2444                        }
2445                } else if (lscsi_status !=
2446                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
2447                    lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2448                        /*
2449                         * scsi status of task set and busy are considered
2450                         * to be task not completed.
2451                         */
2452
2453                        ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2454                            "Dropped frame(s) detected (0x%x "
2455                            "of 0x%x bytes).\n", resid,
2456                            scsi_bufflen(cp));
2457
2458                        res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2459                        goto check_scsi_status;
2460                } else {
2461                        ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2462                            "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2463                            scsi_status, lscsi_status);
2464                }
2465
2466                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2467                logit = 0;
2468
2469check_scsi_status:
2470                /*
2471                 * Check to see if SCSI Status is non zero. If so report SCSI
2472                 * Status.
2473                 */
2474                if (lscsi_status != 0) {
2475                        if (lscsi_status ==
2476                            cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2477                                ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2478                                    "QUEUE FULL detected.\n");
2479                                logit = 1;
2480                                break;
2481                        }
2482                        if (lscsi_status !=
2483                            cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2484                                break;
2485
2486                        memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2487                        if (!(scsi_status &
2488                            cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2489                                break;
2490
2491                        qlafx00_handle_sense(sp, sense_data, par_sense_len,
2492                            sense_len, rsp, res);
2493                }
2494                break;
2495
2496        case CS_PORT_LOGGED_OUT:
2497        case CS_PORT_CONFIG_CHG:
2498        case CS_PORT_BUSY:
2499        case CS_INCOMPLETE:
2500        case CS_PORT_UNAVAILABLE:
2501        case CS_TIMEOUT:
2502        case CS_RESET:
2503
2504                /*
2505                 * We are going to have the fc class block the rport
2506                 * while we try to recover so instruct the mid layer
2507                 * to requeue until the class decides how to handle this.
2508                 */
2509                res = DID_TRANSPORT_DISRUPTED << 16;
2510
2511                ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2512                    "Port down status: port-state=0x%x.\n",
2513                    atomic_read(&fcport->state));
2514
2515                if (atomic_read(&fcport->state) == FCS_ONLINE)
2516                        qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2517                break;
2518
2519        case CS_ABORTED:
2520                res = DID_RESET << 16;
2521                break;
2522
2523        default:
2524                res = DID_ERROR << 16;
2525                break;
2526        }
2527
2528        if (logit)
2529                ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2530                    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2531                    "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
2532                    "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
2533                    "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2534                    comp_status, scsi_status, res, vha->host_no,
2535                    cp->device->id, cp->device->lun, fcport->tgt_id,
2536                    lscsi_status, cp->cmnd, scsi_bufflen(cp),
2537                    rsp_info, resid_len, fw_resid_len, sense_len,
2538                    par_sense_len, rsp_info_len);
2539
2540        if (rsp->status_srb == NULL)
2541                sp->done(sp, res);
2542        else
2543                WARN_ON_ONCE(true);
2544}
2545
2546/**
2547 * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2548 * @rsp: response queue
2549 * @pkt: Entry pointer
2550 *
2551 * Extended sense data.
2552 */
2553static void
2554qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2555{
2556        uint8_t sense_sz = 0;
2557        struct qla_hw_data *ha = rsp->hw;
2558        struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2559        srb_t *sp = rsp->status_srb;
2560        struct scsi_cmnd *cp;
2561        uint32_t sense_len;
2562        uint8_t *sense_ptr;
2563
2564        if (!sp) {
2565                ql_dbg(ql_dbg_io, vha, 0x3037,
2566                    "no SP, sp = %p\n", sp);
2567                return;
2568        }
2569
2570        if (!GET_FW_SENSE_LEN(sp)) {
2571                ql_dbg(ql_dbg_io, vha, 0x304b,
2572                    "no fw sense data, sp = %p\n", sp);
2573                return;
2574        }
2575        cp = GET_CMD_SP(sp);
2576        if (cp == NULL) {
2577                ql_log(ql_log_warn, vha, 0x303b,
2578                    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2579
2580                rsp->status_srb = NULL;
2581                return;
2582        }
2583
2584        if (!GET_CMD_SENSE_LEN(sp)) {
2585                ql_dbg(ql_dbg_io, vha, 0x304c,
2586                    "no sense data, sp = %p\n", sp);
2587        } else {
2588                sense_len = GET_CMD_SENSE_LEN(sp);
2589                sense_ptr = GET_CMD_SENSE_PTR(sp);
2590                ql_dbg(ql_dbg_io, vha, 0x304f,
2591                    "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2592                    sp, sense_len, sense_ptr);
2593
2594                if (sense_len > sizeof(pkt->data))
2595                        sense_sz = sizeof(pkt->data);
2596                else
2597                        sense_sz = sense_len;
2598
2599                /* Move sense data. */
2600                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2601                    pkt, sizeof(*pkt));
2602                memcpy(sense_ptr, pkt->data, sense_sz);
2603                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2604                    sense_ptr, sense_sz);
2605
2606                sense_len -= sense_sz;
2607                sense_ptr += sense_sz;
2608
2609                SET_CMD_SENSE_PTR(sp, sense_ptr);
2610                SET_CMD_SENSE_LEN(sp, sense_len);
2611        }
2612        sense_len = GET_FW_SENSE_LEN(sp);
2613        sense_len = (sense_len > sizeof(pkt->data)) ?
2614            (sense_len - sizeof(pkt->data)) : 0;
2615        SET_FW_SENSE_LEN(sp, sense_len);
2616
2617        /* Place command on done queue. */
2618        if (sense_len == 0) {
2619                rsp->status_srb = NULL;
2620                sp->done(sp, cp->result);
2621        } else {
2622                WARN_ON_ONCE(true);
2623        }
2624}
2625
2626/**
2627 * qlafx00_multistatus_entry() - Process Multi response queue entries.
2628 * @vha: SCSI driver HA context
2629 * @rsp: response queue
2630 * @pkt: received packet
2631 */
2632static void
2633qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2634        struct rsp_que *rsp, void *pkt)
2635{
2636        srb_t           *sp;
2637        struct multi_sts_entry_fx00 *stsmfx;
2638        struct qla_hw_data *ha = vha->hw;
2639        uint32_t handle, hindex, handle_count, i;
2640        uint16_t que;
2641        struct req_que *req;
2642        __le32 *handle_ptr;
2643
2644        stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2645
2646        handle_count = stsmfx->handle_count;
2647
2648        if (handle_count > MAX_HANDLE_COUNT) {
2649                ql_dbg(ql_dbg_io, vha, 0x3035,
2650                    "Invalid handle count (0x%x).\n", handle_count);
2651                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2652                qla2xxx_wake_dpc(vha);
2653                return;
2654        }
2655
2656        handle_ptr =  &stsmfx->handles[0];
2657
2658        for (i = 0; i < handle_count; i++) {
2659                hindex = le32_to_cpu(*handle_ptr);
2660                handle = LSW(hindex);
2661                que = MSW(hindex);
2662                req = ha->req_q_map[que];
2663
2664                /* Validate handle. */
2665                if (handle < req->num_outstanding_cmds)
2666                        sp = req->outstanding_cmds[handle];
2667                else
2668                        sp = NULL;
2669
2670                if (sp == NULL) {
2671                        ql_dbg(ql_dbg_io, vha, 0x3044,
2672                            "Invalid status handle (0x%x).\n", handle);
2673                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2674                        qla2xxx_wake_dpc(vha);
2675                        return;
2676                }
2677                qla2x00_process_completed_request(vha, req, handle);
2678                handle_ptr++;
2679        }
2680}
2681
2682/**
2683 * qlafx00_error_entry() - Process an error entry.
2684 * @vha: SCSI driver HA context
2685 * @rsp: response queue
2686 * @pkt: Entry pointer
2687 */
2688static void
2689qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2690                    struct sts_entry_fx00 *pkt)
2691{
2692        srb_t *sp;
2693        struct qla_hw_data *ha = vha->hw;
2694        const char func[] = "ERROR-IOCB";
2695        uint16_t que = 0;
2696        struct req_que *req = NULL;
2697        int res = DID_ERROR << 16;
2698
2699        req = ha->req_q_map[que];
2700
2701        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2702        if (sp) {
2703                sp->done(sp, res);
2704                return;
2705        }
2706
2707        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2708        qla2xxx_wake_dpc(vha);
2709}
2710
2711/**
2712 * qlafx00_process_response_queue() - Process response queue entries.
2713 * @vha: SCSI driver HA context
2714 * @rsp: response queue
2715 */
2716static void
2717qlafx00_process_response_queue(struct scsi_qla_host *vha,
2718        struct rsp_que *rsp)
2719{
2720        struct sts_entry_fx00 *pkt;
2721        response_t *lptr;
2722        uint16_t lreq_q_in = 0;
2723        uint16_t lreq_q_out = 0;
2724
2725        lreq_q_in = RD_REG_DWORD(rsp->rsp_q_in);
2726        lreq_q_out = rsp->ring_index;
2727
2728        while (lreq_q_in != lreq_q_out) {
2729                lptr = rsp->ring_ptr;
2730                memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
2731                    sizeof(rsp->rsp_pkt));
2732                pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2733
2734                rsp->ring_index++;
2735                lreq_q_out++;
2736                if (rsp->ring_index == rsp->length) {
2737                        lreq_q_out = 0;
2738                        rsp->ring_index = 0;
2739                        rsp->ring_ptr = rsp->ring;
2740                } else {
2741                        rsp->ring_ptr++;
2742                }
2743
2744                if (pkt->entry_status != 0 &&
2745                    pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2746                        ql_dbg(ql_dbg_async, vha, 0x507f,
2747                               "type of error status in response: 0x%x\n",
2748                               pkt->entry_status);
2749                        qlafx00_error_entry(vha, rsp,
2750                                            (struct sts_entry_fx00 *)pkt);
2751                        continue;
2752                }
2753
2754                switch (pkt->entry_type) {
2755                case STATUS_TYPE_FX00:
2756                        qlafx00_status_entry(vha, rsp, pkt);
2757                        break;
2758
2759                case STATUS_CONT_TYPE_FX00:
2760                        qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2761                        break;
2762
2763                case MULTI_STATUS_TYPE_FX00:
2764                        qlafx00_multistatus_entry(vha, rsp, pkt);
2765                        break;
2766
2767                case ABORT_IOCB_TYPE_FX00:
2768                        qlafx00_abort_iocb_entry(vha, rsp->req,
2769                           (struct abort_iocb_entry_fx00 *)pkt);
2770                        break;
2771
2772                case IOCTL_IOSB_TYPE_FX00:
2773                        qlafx00_ioctl_iosb_entry(vha, rsp->req,
2774                            (struct ioctl_iocb_entry_fx00 *)pkt);
2775                        break;
2776                default:
2777                        /* Type Not Supported. */
2778                        ql_dbg(ql_dbg_async, vha, 0x5081,
2779                            "Received unknown response pkt type %x "
2780                            "entry status=%x.\n",
2781                            pkt->entry_type, pkt->entry_status);
2782                        break;
2783                }
2784        }
2785
2786        /* Adjust ring index */
2787        WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2788}
2789
2790/**
2791 * qlafx00_async_event() - Process aynchronous events.
2792 * @vha: SCSI driver HA context
2793 */
2794static void
2795qlafx00_async_event(scsi_qla_host_t *vha)
2796{
2797        struct qla_hw_data *ha = vha->hw;
2798        struct device_reg_fx00 __iomem *reg;
2799        int data_size = 1;
2800
2801        reg = &ha->iobase->ispfx00;
2802        /* Setup to process RIO completion. */
2803        switch (ha->aenmb[0]) {
2804        case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2805                ql_log(ql_log_warn, vha, 0x5079,
2806                    "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2807                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2808                break;
2809
2810        case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2811                ql_dbg(ql_dbg_async, vha, 0x5076,
2812                    "Asynchronous FW shutdown requested.\n");
2813                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2814                qla2xxx_wake_dpc(vha);
2815                break;
2816
2817        case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2818                ha->aenmb[1] = RD_REG_DWORD(&reg->aenmailbox1);
2819                ha->aenmb[2] = RD_REG_DWORD(&reg->aenmailbox2);
2820                ha->aenmb[3] = RD_REG_DWORD(&reg->aenmailbox3);
2821                ql_dbg(ql_dbg_async, vha, 0x5077,
2822                    "Asynchronous port Update received "
2823                    "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2824                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2825                data_size = 4;
2826                break;
2827
2828        case QLAFX00_MBA_TEMP_OVER:     /* Over temperature event */
2829                ql_log(ql_log_info, vha, 0x5085,
2830                    "Asynchronous over temperature event received "
2831                    "aenmb[0]: %x\n",
2832                    ha->aenmb[0]);
2833                break;
2834
2835        case QLAFX00_MBA_TEMP_NORM:     /* Normal temperature event */
2836                ql_log(ql_log_info, vha, 0x5086,
2837                    "Asynchronous normal temperature event received "
2838                    "aenmb[0]: %x\n",
2839                    ha->aenmb[0]);
2840                break;
2841
2842        case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
2843                ql_log(ql_log_info, vha, 0x5083,
2844                    "Asynchronous critical temperature event received "
2845                    "aenmb[0]: %x\n",
2846                ha->aenmb[0]);
2847                break;
2848
2849        default:
2850                ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2851                ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2852                ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2853                ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2854                ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2855                ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2856                ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2857                ql_dbg(ql_dbg_async, vha, 0x5078,
2858                    "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2859                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2860                    ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2861                break;
2862        }
2863        qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2864            (uint32_t *)ha->aenmb, data_size);
2865}
2866
2867/**
2868 * qlafx00x_mbx_completion() - Process mailbox command completions.
2869 * @vha: SCSI driver HA context
2870 * @mb0: value to be written into mailbox register 0
2871 */
2872static void
2873qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2874{
2875        uint16_t        cnt;
2876        uint32_t __iomem *wptr;
2877        struct qla_hw_data *ha = vha->hw;
2878        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2879
2880        if (!ha->mcp32)
2881                ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2882
2883        /* Load return mailbox registers. */
2884        ha->flags.mbox_int = 1;
2885        ha->mailbox_out32[0] = mb0;
2886        wptr = (uint32_t __iomem *)&reg->mailbox17;
2887
2888        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2889                ha->mailbox_out32[cnt] = RD_REG_DWORD(wptr);
2890                wptr++;
2891        }
2892}
2893
2894/**
2895 * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2896 * @irq: interrupt number
2897 * @dev_id: SCSI driver HA context
2898 *
2899 * Called by system whenever the host adapter generates an interrupt.
2900 *
2901 * Returns handled flag.
2902 */
2903irqreturn_t
2904qlafx00_intr_handler(int irq, void *dev_id)
2905{
2906        scsi_qla_host_t *vha;
2907        struct qla_hw_data *ha;
2908        struct device_reg_fx00 __iomem *reg;
2909        int             status;
2910        unsigned long   iter;
2911        uint32_t        stat;
2912        uint32_t        mb[8];
2913        struct rsp_que *rsp;
2914        unsigned long   flags;
2915        uint32_t clr_intr = 0;
2916        uint32_t intr_stat = 0;
2917
2918        rsp = (struct rsp_que *) dev_id;
2919        if (!rsp) {
2920                ql_log(ql_log_info, NULL, 0x507d,
2921                    "%s: NULL response queue pointer.\n", __func__);
2922                return IRQ_NONE;
2923        }
2924
2925        ha = rsp->hw;
2926        reg = &ha->iobase->ispfx00;
2927        status = 0;
2928
2929        if (unlikely(pci_channel_offline(ha->pdev)))
2930                return IRQ_HANDLED;
2931
2932        spin_lock_irqsave(&ha->hardware_lock, flags);
2933        vha = pci_get_drvdata(ha->pdev);
2934        for (iter = 50; iter--; clr_intr = 0) {
2935                stat = QLAFX00_RD_INTR_REG(ha);
2936                if (qla2x00_check_reg32_for_disconnect(vha, stat))
2937                        break;
2938                intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
2939                if (!intr_stat)
2940                        break;
2941
2942                if (stat & QLAFX00_INTR_MB_CMPLT) {
2943                        mb[0] = RD_REG_WORD(&reg->mailbox16);
2944                        qlafx00_mbx_completion(vha, mb[0]);
2945                        status |= MBX_INTERRUPT;
2946                        clr_intr |= QLAFX00_INTR_MB_CMPLT;
2947                }
2948                if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
2949                        ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2950                        qlafx00_async_event(vha);
2951                        clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2952                }
2953                if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
2954                        qlafx00_process_response_queue(vha, rsp);
2955                        clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2956                }
2957
2958                QLAFX00_CLR_INTR_REG(ha, clr_intr);
2959                QLAFX00_RD_INTR_REG(ha);
2960        }
2961
2962        qla2x00_handle_mbx_completion(ha, status);
2963        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2964
2965        return IRQ_HANDLED;
2966}
2967
2968/** QLAFX00 specific IOCB implementation functions */
2969
2970static inline cont_a64_entry_t *
2971qlafx00_prep_cont_type1_iocb(struct req_que *req,
2972                             cont_a64_entry_t *lcont_pkt)
2973{
2974        cont_a64_entry_t *cont_pkt;
2975
2976        /* Adjust ring index. */
2977        req->ring_index++;
2978        if (req->ring_index == req->length) {
2979                req->ring_index = 0;
2980                req->ring_ptr = req->ring;
2981        } else {
2982                req->ring_ptr++;
2983        }
2984
2985        cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2986
2987        /* Load packet defaults. */
2988        lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
2989
2990        return cont_pkt;
2991}
2992
2993static inline void
2994qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2995                         uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2996{
2997        uint16_t        avail_dsds;
2998        struct dsd64    *cur_dsd;
2999        scsi_qla_host_t *vha;
3000        struct scsi_cmnd *cmd;
3001        struct scatterlist *sg;
3002        int i, cont;
3003        struct req_que *req;
3004        cont_a64_entry_t lcont_pkt;
3005        cont_a64_entry_t *cont_pkt;
3006
3007        vha = sp->vha;
3008        req = vha->req;
3009
3010        cmd = GET_CMD_SP(sp);
3011        cont = 0;
3012        cont_pkt = NULL;
3013
3014        /* Update entry type to indicate Command Type 3 IOCB */
3015        lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3016
3017        /* No data transfer */
3018        if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3019                lcmd_pkt->byte_count = cpu_to_le32(0);
3020                return;
3021        }
3022
3023        /* Set transfer direction */
3024        if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3025                lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3026                vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3027        } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3028                lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3029                vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3030        }
3031
3032        /* One DSD is available in the Command Type 3 IOCB */
3033        avail_dsds = 1;
3034        cur_dsd = &lcmd_pkt->dsd;
3035
3036        /* Load data segments */
3037        scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3038                /* Allocate additional continuation packets? */
3039                if (avail_dsds == 0) {
3040                        /*
3041                         * Five DSDs are available in the Continuation
3042                         * Type 1 IOCB.
3043                         */
3044                        memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3045                        cont_pkt =
3046                            qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3047                        cur_dsd = lcont_pkt.dsd;
3048                        avail_dsds = 5;
3049                        cont = 1;
3050                }
3051
3052                append_dsd64(&cur_dsd, sg);
3053                avail_dsds--;
3054                if (avail_dsds == 0 && cont == 1) {
3055                        cont = 0;
3056                        memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3057                            sizeof(lcont_pkt));
3058                }
3059
3060        }
3061        if (avail_dsds != 0 && cont == 1) {
3062                memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3063                    sizeof(lcont_pkt));
3064        }
3065}
3066
3067/**
3068 * qlafx00_start_scsi() - Send a SCSI command to the ISP
3069 * @sp: command to send to the ISP
3070 *
3071 * Returns non-zero if a failure occurred, else zero.
3072 */
3073int
3074qlafx00_start_scsi(srb_t *sp)
3075{
3076        int             nseg;
3077        unsigned long   flags;
3078        uint32_t        handle;
3079        uint16_t        cnt;
3080        uint16_t        req_cnt;
3081        uint16_t        tot_dsds;
3082        struct req_que *req = NULL;
3083        struct rsp_que *rsp = NULL;
3084        struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3085        struct scsi_qla_host *vha = sp->vha;
3086        struct qla_hw_data *ha = vha->hw;
3087        struct cmd_type_7_fx00 *cmd_pkt;
3088        struct cmd_type_7_fx00 lcmd_pkt;
3089        struct scsi_lun llun;
3090
3091        /* Setup device pointers. */
3092        rsp = ha->rsp_q_map[0];
3093        req = vha->req;
3094
3095        /* So we know we haven't pci_map'ed anything yet */
3096        tot_dsds = 0;
3097
3098        /* Acquire ring specific lock */
3099        spin_lock_irqsave(&ha->hardware_lock, flags);
3100
3101        handle = qla2xxx_get_next_handle(req);
3102        if (handle == 0)
3103                goto queuing_error;
3104
3105        /* Map the sg table so we have an accurate count of sg entries needed */
3106        if (scsi_sg_count(cmd)) {
3107                nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3108                    scsi_sg_count(cmd), cmd->sc_data_direction);
3109                if (unlikely(!nseg))
3110                        goto queuing_error;
3111        } else
3112                nseg = 0;
3113
3114        tot_dsds = nseg;
3115        req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3116        if (req->cnt < (req_cnt + 2)) {
3117                cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3118
3119                if (req->ring_index < cnt)
3120                        req->cnt = cnt - req->ring_index;
3121                else
3122                        req->cnt = req->length -
3123                                (req->ring_index - cnt);
3124                if (req->cnt < (req_cnt + 2))
3125                        goto queuing_error;
3126        }
3127
3128        /* Build command packet. */
3129        req->current_outstanding_cmd = handle;
3130        req->outstanding_cmds[handle] = sp;
3131        sp->handle = handle;
3132        cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3133        req->cnt -= req_cnt;
3134
3135        cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3136
3137        memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3138
3139        lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3140        lcmd_pkt.reserved_0 = 0;
3141        lcmd_pkt.port_path_ctrl = 0;
3142        lcmd_pkt.reserved_1 = 0;
3143        lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3144        lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3145
3146        int_to_scsilun(cmd->device->lun, &llun);
3147        host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3148            sizeof(lcmd_pkt.lun));
3149
3150        /* Load SCSI command packet. */
3151        host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3152        lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3153
3154        /* Build IOCB segments */
3155        qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3156
3157        /* Set total data segment count. */
3158        lcmd_pkt.entry_count = (uint8_t)req_cnt;
3159
3160        /* Specify response queue number where completion should happen */
3161        lcmd_pkt.entry_status = (uint8_t) rsp->id;
3162
3163        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3164            cmd->cmnd, cmd->cmd_len);
3165        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3166            &lcmd_pkt, sizeof(lcmd_pkt));
3167
3168        memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3169        wmb();
3170
3171        /* Adjust ring index. */
3172        req->ring_index++;
3173        if (req->ring_index == req->length) {
3174                req->ring_index = 0;
3175                req->ring_ptr = req->ring;
3176        } else
3177                req->ring_ptr++;
3178
3179        sp->flags |= SRB_DMA_VALID;
3180
3181        /* Set chip new ring index. */
3182        WRT_REG_DWORD(req->req_q_in, req->ring_index);
3183        QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3184
3185        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3186        return QLA_SUCCESS;
3187
3188queuing_error:
3189        if (tot_dsds)
3190                scsi_dma_unmap(cmd);
3191
3192        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3193
3194        return QLA_FUNCTION_FAILED;
3195}
3196
3197void
3198qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3199{
3200        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3201        scsi_qla_host_t *vha = sp->vha;
3202        struct req_que *req = vha->req;
3203        struct tsk_mgmt_entry_fx00 tm_iocb;
3204        struct scsi_lun llun;
3205
3206        memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3207        tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3208        tm_iocb.entry_count = 1;
3209        tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3210        tm_iocb.reserved_0 = 0;
3211        tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3212        tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3213        if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3214                int_to_scsilun(fxio->u.tmf.lun, &llun);
3215                host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3216                    sizeof(struct scsi_lun));
3217        }
3218
3219        memcpy((void *)ptm_iocb, &tm_iocb,
3220            sizeof(struct tsk_mgmt_entry_fx00));
3221        wmb();
3222}
3223
3224void
3225qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3226{
3227        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3228        scsi_qla_host_t *vha = sp->vha;
3229        struct req_que *req = vha->req;
3230        struct abort_iocb_entry_fx00 abt_iocb;
3231
3232        memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3233        abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3234        abt_iocb.entry_count = 1;
3235        abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3236        abt_iocb.abort_handle =
3237            cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3238        abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3239        abt_iocb.req_que_no = cpu_to_le16(req->id);
3240
3241        memcpy((void *)pabt_iocb, &abt_iocb,
3242            sizeof(struct abort_iocb_entry_fx00));
3243        wmb();
3244}
3245
3246void
3247qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3248{
3249        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3250        struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3251        struct bsg_job *bsg_job;
3252        struct fc_bsg_request *bsg_request;
3253        struct fxdisc_entry_fx00 fx_iocb;
3254        uint8_t entry_cnt = 1;
3255
3256        memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3257        fx_iocb.entry_type = FX00_IOCB_TYPE;
3258        fx_iocb.handle = cpu_to_le32(sp->handle);
3259        fx_iocb.entry_count = entry_cnt;
3260
3261        if (sp->type == SRB_FXIOCB_DCMD) {
3262                fx_iocb.func_num =
3263                    sp->u.iocb_cmd.u.fxiocb.req_func_type;
3264                fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
3265                fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
3266                fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
3267                fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
3268                fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3269
3270                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3271                        fx_iocb.req_dsdcnt = cpu_to_le16(1);
3272                        fx_iocb.req_xfrcnt =
3273                            cpu_to_le16(fxio->u.fxiocb.req_len);
3274                        put_unaligned_le64(fxio->u.fxiocb.req_dma_handle,
3275                                           &fx_iocb.dseg_rq.address);
3276                        fx_iocb.dseg_rq.length =
3277                            cpu_to_le32(fxio->u.fxiocb.req_len);
3278                }
3279
3280                if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3281                        fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3282                        fx_iocb.rsp_xfrcnt =
3283                            cpu_to_le16(fxio->u.fxiocb.rsp_len);
3284                        put_unaligned_le64(fxio->u.fxiocb.rsp_dma_handle,
3285                                           &fx_iocb.dseg_rsp.address);
3286                        fx_iocb.dseg_rsp.length =
3287                            cpu_to_le32(fxio->u.fxiocb.rsp_len);
3288                }
3289
3290                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3291                        fx_iocb.dataword = fxio->u.fxiocb.req_data;
3292                }
3293                fx_iocb.flags = fxio->u.fxiocb.flags;
3294        } else {
3295                struct scatterlist *sg;
3296
3297                bsg_job = sp->u.bsg_job;
3298                bsg_request = bsg_job->request;
3299                piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3300                        &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3301
3302                fx_iocb.func_num = piocb_rqst->func_type;
3303                fx_iocb.adapid = piocb_rqst->adapid;
3304                fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3305                fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3306                fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3307                fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3308                fx_iocb.dataword = piocb_rqst->dataword;
3309                fx_iocb.req_xfrcnt = piocb_rqst->req_len;
3310                fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3311
3312                if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3313                        int avail_dsds, tot_dsds;
3314                        cont_a64_entry_t lcont_pkt;
3315                        cont_a64_entry_t *cont_pkt = NULL;
3316                        struct dsd64 *cur_dsd;
3317                        int index = 0, cont = 0;
3318
3319                        fx_iocb.req_dsdcnt =
3320                            cpu_to_le16(bsg_job->request_payload.sg_cnt);
3321                        tot_dsds =
3322                            bsg_job->request_payload.sg_cnt;
3323                        cur_dsd = &fx_iocb.dseg_rq;
3324                        avail_dsds = 1;
3325                        for_each_sg(bsg_job->request_payload.sg_list, sg,
3326                            tot_dsds, index) {
3327                                /* Allocate additional continuation packets? */
3328                                if (avail_dsds == 0) {
3329                                        /*
3330                                         * Five DSDs are available in the Cont.
3331                                         * Type 1 IOCB.
3332                                         */
3333                                        memset(&lcont_pkt, 0,
3334                                            REQUEST_ENTRY_SIZE);
3335                                        cont_pkt =
3336                                            qlafx00_prep_cont_type1_iocb(
3337                                                sp->vha->req, &lcont_pkt);
3338                                        cur_dsd = lcont_pkt.dsd;
3339                                        avail_dsds = 5;
3340                                        cont = 1;
3341                                        entry_cnt++;
3342                                }
3343
3344                                append_dsd64(&cur_dsd, sg);
3345                                avail_dsds--;
3346
3347                                if (avail_dsds == 0 && cont == 1) {
3348                                        cont = 0;
3349                                        memcpy_toio(
3350                                            (void __iomem *)cont_pkt,
3351                                            &lcont_pkt, REQUEST_ENTRY_SIZE);
3352                                        ql_dump_buffer(
3353                                            ql_dbg_user + ql_dbg_verbose,
3354                                            sp->vha, 0x3042,
3355                                            (uint8_t *)&lcont_pkt,
3356                                             REQUEST_ENTRY_SIZE);
3357                                }
3358                        }
3359                        if (avail_dsds != 0 && cont == 1) {
3360                                memcpy_toio((void __iomem *)cont_pkt,
3361                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3362                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3363                                    sp->vha, 0x3043,
3364                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3365                        }
3366                }
3367
3368                if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3369                        int avail_dsds, tot_dsds;
3370                        cont_a64_entry_t lcont_pkt;
3371                        cont_a64_entry_t *cont_pkt = NULL;
3372                        struct dsd64 *cur_dsd;
3373                        int index = 0, cont = 0;
3374
3375                        fx_iocb.rsp_dsdcnt =
3376                           cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3377                        tot_dsds = bsg_job->reply_payload.sg_cnt;
3378                        cur_dsd = &fx_iocb.dseg_rsp;
3379                        avail_dsds = 1;
3380
3381                        for_each_sg(bsg_job->reply_payload.sg_list, sg,
3382                            tot_dsds, index) {
3383                                /* Allocate additional continuation packets? */
3384                                if (avail_dsds == 0) {
3385                                        /*
3386                                        * Five DSDs are available in the Cont.
3387                                        * Type 1 IOCB.
3388                                        */
3389                                        memset(&lcont_pkt, 0,
3390                                            REQUEST_ENTRY_SIZE);
3391                                        cont_pkt =
3392                                            qlafx00_prep_cont_type1_iocb(
3393                                                sp->vha->req, &lcont_pkt);
3394                                        cur_dsd = lcont_pkt.dsd;
3395                                        avail_dsds = 5;
3396                                        cont = 1;
3397                                        entry_cnt++;
3398                                }
3399
3400                                append_dsd64(&cur_dsd, sg);
3401                                avail_dsds--;
3402
3403                                if (avail_dsds == 0 && cont == 1) {
3404                                        cont = 0;
3405                                        memcpy_toio((void __iomem *)cont_pkt,
3406                                            &lcont_pkt,
3407                                            REQUEST_ENTRY_SIZE);
3408                                        ql_dump_buffer(
3409                                            ql_dbg_user + ql_dbg_verbose,
3410                                            sp->vha, 0x3045,
3411                                            (uint8_t *)&lcont_pkt,
3412                                            REQUEST_ENTRY_SIZE);
3413                                }
3414                        }
3415                        if (avail_dsds != 0 && cont == 1) {
3416                                memcpy_toio((void __iomem *)cont_pkt,
3417                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3418                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3419                                    sp->vha, 0x3046,
3420                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3421                        }
3422                }
3423
3424                if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3425                        fx_iocb.dataword = piocb_rqst->dataword;
3426                fx_iocb.flags = piocb_rqst->flags;
3427                fx_iocb.entry_count = entry_cnt;
3428        }
3429
3430        ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3431            sp->vha, 0x3047, &fx_iocb, sizeof(fx_iocb));
3432
3433        memcpy_toio((void __iomem *)pfxiocb, &fx_iocb, sizeof(fx_iocb));
3434        wmb();
3435}
3436