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 <linux/bsg-lib.h>
  14#include <scsi/scsi_tcq.h>
  15#include <linux/utsname.h>
  16
  17
  18/* QLAFX00 specific Mailbox implementation functions */
  19
  20/*
  21 * qlafx00_mailbox_command
  22 *      Issue mailbox command and waits for completion.
  23 *
  24 * Input:
  25 *      ha = adapter block pointer.
  26 *      mcp = driver internal mbx struct pointer.
  27 *
  28 * Output:
  29 *      mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
  30 *
  31 * Returns:
  32 *      0 : QLA_SUCCESS = cmd performed success
  33 *      1 : QLA_FUNCTION_FAILED   (error encountered)
  34 *      6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
  35 *
  36 * Context:
  37 *      Kernel context.
  38 */
  39static int
  40qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
  41
  42{
  43        int             rval;
  44        unsigned long    flags = 0;
  45        device_reg_t *reg;
  46        uint8_t         abort_active;
  47        uint8_t         io_lock_on;
  48        uint16_t        command = 0;
  49        uint32_t        *iptr;
  50        uint32_t __iomem *optr;
  51        uint32_t        cnt;
  52        uint32_t        mboxes;
  53        unsigned long   wait_time;
  54        struct qla_hw_data *ha = vha->hw;
  55        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
  56
  57        if (ha->pdev->error_state > pci_channel_io_frozen) {
  58                ql_log(ql_log_warn, vha, 0x115c,
  59                    "error_state is greater than pci_channel_io_frozen, "
  60                    "exiting.\n");
  61                return QLA_FUNCTION_TIMEOUT;
  62        }
  63
  64        if (vha->device_flags & DFLG_DEV_FAILED) {
  65                ql_log(ql_log_warn, vha, 0x115f,
  66                    "Device in failed state, exiting.\n");
  67                return QLA_FUNCTION_TIMEOUT;
  68        }
  69
  70        reg = ha->iobase;
  71        io_lock_on = base_vha->flags.init_done;
  72
  73        rval = QLA_SUCCESS;
  74        abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
  75
  76        if (ha->flags.pci_channel_io_perm_failure) {
  77                ql_log(ql_log_warn, vha, 0x1175,
  78                    "Perm failure on EEH timeout MBX, exiting.\n");
  79                return QLA_FUNCTION_TIMEOUT;
  80        }
  81
  82        if (ha->flags.isp82xx_fw_hung) {
  83                /* Setting Link-Down error */
  84                mcp->mb[0] = MBS_LINK_DOWN_ERROR;
  85                ql_log(ql_log_warn, vha, 0x1176,
  86                    "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
  87                rval = QLA_FUNCTION_FAILED;
  88                goto premature_exit;
  89        }
  90
  91        /*
  92         * Wait for active mailbox commands to finish by waiting at most tov
  93         * seconds. This is to serialize actual issuing of mailbox cmds during
  94         * non ISP abort time.
  95         */
  96        if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
  97                /* Timeout occurred. Return error. */
  98                ql_log(ql_log_warn, vha, 0x1177,
  99                    "Cmd access timeout, cmd=0x%x, Exiting.\n",
 100                    mcp->mb[0]);
 101                return QLA_FUNCTION_TIMEOUT;
 102        }
 103
 104        ha->flags.mbox_busy = 1;
 105        /* Save mailbox command for debug */
 106        ha->mcp32 = mcp;
 107
 108        ql_dbg(ql_dbg_mbx, vha, 0x1178,
 109            "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
 110
 111        spin_lock_irqsave(&ha->hardware_lock, flags);
 112
 113        /* Load mailbox registers. */
 114        optr = (uint32_t __iomem *)&reg->ispfx00.mailbox0;
 115
 116        iptr = mcp->mb;
 117        command = mcp->mb[0];
 118        mboxes = mcp->out_mb;
 119
 120        for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 121                if (mboxes & BIT_0)
 122                        WRT_REG_DWORD(optr, *iptr);
 123
 124                mboxes >>= 1;
 125                optr++;
 126                iptr++;
 127        }
 128
 129        /* Issue set host interrupt command to send cmd out. */
 130        ha->flags.mbox_int = 0;
 131        clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 132
 133        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
 134            (uint8_t *)mcp->mb, 16);
 135        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
 136            ((uint8_t *)mcp->mb + 0x10), 16);
 137        ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
 138            ((uint8_t *)mcp->mb + 0x20), 8);
 139
 140        /* Unlock mbx registers and wait for interrupt */
 141        ql_dbg(ql_dbg_mbx, vha, 0x1179,
 142            "Going to unlock irq & waiting for interrupts. "
 143            "jiffies=%lx.\n", jiffies);
 144
 145        /* Wait for mbx cmd completion until timeout */
 146        if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 147                set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 148
 149                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 150                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 151
 152                wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
 153        } else {
 154                ql_dbg(ql_dbg_mbx, vha, 0x112c,
 155                    "Cmd=%x Polling Mode.\n", command);
 156
 157                QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
 158                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 159
 160                wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
 161                while (!ha->flags.mbox_int) {
 162                        if (time_after(jiffies, wait_time))
 163                                break;
 164
 165                        /* Check for pending interrupts. */
 166                        qla2x00_poll(ha->rsp_q_map[0]);
 167
 168                        if (!ha->flags.mbox_int &&
 169                            !(IS_QLA2200(ha) &&
 170                            command == MBC_LOAD_RISC_RAM_EXTENDED))
 171                                usleep_range(10000, 11000);
 172                } /* while */
 173                ql_dbg(ql_dbg_mbx, vha, 0x112d,
 174                    "Waited %d sec.\n",
 175                    (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
 176        }
 177
 178        /* Check whether we timed out */
 179        if (ha->flags.mbox_int) {
 180                uint32_t *iptr2;
 181
 182                ql_dbg(ql_dbg_mbx, vha, 0x112e,
 183                    "Cmd=%x completed.\n", command);
 184
 185                /* Got interrupt. Clear the flag. */
 186                ha->flags.mbox_int = 0;
 187                clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 188
 189                if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
 190                        rval = QLA_FUNCTION_FAILED;
 191
 192                /* Load return mailbox registers. */
 193                iptr2 = mcp->mb;
 194                iptr = (uint32_t *)&ha->mailbox_out32[0];
 195                mboxes = mcp->in_mb;
 196                for (cnt = 0; cnt < ha->mbx_count; cnt++) {
 197                        if (mboxes & BIT_0)
 198                                *iptr2 = *iptr;
 199
 200                        mboxes >>= 1;
 201                        iptr2++;
 202                        iptr++;
 203                }
 204        } else {
 205
 206                rval = QLA_FUNCTION_TIMEOUT;
 207        }
 208
 209        ha->flags.mbox_busy = 0;
 210
 211        /* Clean up */
 212        ha->mcp32 = NULL;
 213
 214        if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
 215                ql_dbg(ql_dbg_mbx, vha, 0x113a,
 216                    "checking for additional resp interrupt.\n");
 217
 218                /* polling mode for non isp_abort commands. */
 219                qla2x00_poll(ha->rsp_q_map[0]);
 220        }
 221
 222        if (rval == QLA_FUNCTION_TIMEOUT &&
 223            mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
 224                if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
 225                    ha->flags.eeh_busy) {
 226                        /* not in dpc. schedule it for dpc to take over. */
 227                        ql_dbg(ql_dbg_mbx, vha, 0x115d,
 228                            "Timeout, schedule isp_abort_needed.\n");
 229
 230                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 231                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 232                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 233
 234                                ql_log(ql_log_info, base_vha, 0x115e,
 235                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 236                                    "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
 237                                    "abort.\n", command, mcp->mb[0],
 238                                    ha->flags.eeh_busy);
 239                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 240                                qla2xxx_wake_dpc(vha);
 241                        }
 242                } else if (!abort_active) {
 243                        /* call abort directly since we are in the DPC thread */
 244                        ql_dbg(ql_dbg_mbx, vha, 0x1160,
 245                            "Timeout, calling abort_isp.\n");
 246
 247                        if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
 248                            !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
 249                            !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
 250
 251                                ql_log(ql_log_info, base_vha, 0x1161,
 252                                    "Mailbox cmd timeout occurred, cmd=0x%x, "
 253                                    "mb[0]=0x%x. Scheduling ISP abort ",
 254                                    command, mcp->mb[0]);
 255
 256                                set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 257                                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 258                                if (ha->isp_ops->abort_isp(vha)) {
 259                                        /* Failed. retry later. */
 260                                        set_bit(ISP_ABORT_NEEDED,
 261                                            &vha->dpc_flags);
 262                                }
 263                                clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
 264                                ql_dbg(ql_dbg_mbx, vha, 0x1162,
 265                                    "Finished abort_isp.\n");
 266                        }
 267                }
 268        }
 269
 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 mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
 277                    "mb[3]=%x, cmd=%x ****.\n",
 278                    mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
 279        } else {
 280                ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 281        }
 282
 283        return rval;
 284}
 285
 286/*
 287 * qlafx00_driver_shutdown
 288 *      Indicate a driver shutdown to firmware.
 289 *
 290 * Input:
 291 *      ha = adapter block pointer.
 292 *
 293 * Returns:
 294 *      local function return status code.
 295 *
 296 * Context:
 297 *      Kernel context.
 298 */
 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 */
 632void
 633qlafx00_soft_reset(scsi_qla_host_t *vha)
 634{
 635        struct qla_hw_data *ha = vha->hw;
 636
 637        if (unlikely(pci_channel_offline(ha->pdev) &&
 638            ha->flags.pci_channel_io_perm_failure))
 639                return;
 640
 641        ha->isp_ops->disable_intrs(ha);
 642        qlafx00_soc_cpu_reset(vha);
 643}
 644
 645/**
 646 * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 647 * @vha: HA context
 648 *
 649 * Returns 0 on success.
 650 */
 651int
 652qlafx00_chip_diag(scsi_qla_host_t *vha)
 653{
 654        int rval = 0;
 655        struct qla_hw_data *ha = vha->hw;
 656        struct req_que *req = ha->req_q_map[0];
 657
 658        ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 659
 660        rval = qlafx00_mbx_reg_test(vha);
 661        if (rval) {
 662                ql_log(ql_log_warn, vha, 0x1165,
 663                    "Failed mailbox send register test\n");
 664        } else {
 665                /* Flag a successful rval */
 666                rval = QLA_SUCCESS;
 667        }
 668        return rval;
 669}
 670
 671void
 672qlafx00_config_rings(struct scsi_qla_host *vha)
 673{
 674        struct qla_hw_data *ha = vha->hw;
 675        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 676
 677        WRT_REG_DWORD(&reg->req_q_in, 0);
 678        WRT_REG_DWORD(&reg->req_q_out, 0);
 679
 680        WRT_REG_DWORD(&reg->rsp_q_in, 0);
 681        WRT_REG_DWORD(&reg->rsp_q_out, 0);
 682
 683        /* PCI posting */
 684        RD_REG_DWORD(&reg->rsp_q_out);
 685}
 686
 687char *
 688qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 689{
 690        struct qla_hw_data *ha = vha->hw;
 691
 692        if (pci_is_pcie(ha->pdev)) {
 693                strcpy(str, "PCIe iSA");
 694                return str;
 695        }
 696        return str;
 697}
 698
 699char *
 700qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
 701{
 702        struct qla_hw_data *ha = vha->hw;
 703
 704        snprintf(str, size, "%s", ha->mr.fw_version);
 705        return str;
 706}
 707
 708void
 709qlafx00_enable_intrs(struct qla_hw_data *ha)
 710{
 711        unsigned long flags = 0;
 712
 713        spin_lock_irqsave(&ha->hardware_lock, flags);
 714        ha->interrupts_on = 1;
 715        QLAFX00_ENABLE_ICNTRL_REG(ha);
 716        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 717}
 718
 719void
 720qlafx00_disable_intrs(struct qla_hw_data *ha)
 721{
 722        unsigned long flags = 0;
 723
 724        spin_lock_irqsave(&ha->hardware_lock, flags);
 725        ha->interrupts_on = 0;
 726        QLAFX00_DISABLE_ICNTRL_REG(ha);
 727        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 728}
 729
 730int
 731qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
 732{
 733        return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
 734}
 735
 736int
 737qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 738{
 739        return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 740}
 741
 742int
 743qlafx00_loop_reset(scsi_qla_host_t *vha)
 744{
 745        int ret;
 746        struct fc_port *fcport;
 747        struct qla_hw_data *ha = vha->hw;
 748
 749        if (ql2xtargetreset) {
 750                list_for_each_entry(fcport, &vha->vp_fcports, list) {
 751                        if (fcport->port_type != FCT_TARGET)
 752                                continue;
 753
 754                        ret = ha->isp_ops->target_reset(fcport, 0, 0);
 755                        if (ret != QLA_SUCCESS) {
 756                                ql_dbg(ql_dbg_taskm, vha, 0x803d,
 757                                    "Bus Reset failed: Reset=%d "
 758                                    "d_id=%x.\n", ret, fcport->d_id.b24);
 759                        }
 760                }
 761        }
 762        return QLA_SUCCESS;
 763}
 764
 765int
 766qlafx00_iospace_config(struct qla_hw_data *ha)
 767{
 768        if (pci_request_selected_regions(ha->pdev, ha->bars,
 769            QLA2XXX_DRIVER_NAME)) {
 770                ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
 771                    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
 772                    pci_name(ha->pdev));
 773                goto iospace_error_exit;
 774        }
 775
 776        /* Use MMIO operations for all accesses. */
 777        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
 778                ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
 779                    "Invalid pci I/O region size (%s).\n",
 780                    pci_name(ha->pdev));
 781                goto iospace_error_exit;
 782        }
 783        if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
 784                ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
 785                    "Invalid PCI mem BAR0 region size (%s), aborting\n",
 786                        pci_name(ha->pdev));
 787                goto iospace_error_exit;
 788        }
 789
 790        ha->cregbase =
 791            ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
 792        if (!ha->cregbase) {
 793                ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
 794                    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 795                goto iospace_error_exit;
 796        }
 797
 798        if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
 799                ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
 800                    "region #2 not an MMIO resource (%s), aborting\n",
 801                    pci_name(ha->pdev));
 802                goto iospace_error_exit;
 803        }
 804        if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
 805                ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
 806                    "Invalid PCI mem BAR2 region size (%s), aborting\n",
 807                        pci_name(ha->pdev));
 808                goto iospace_error_exit;
 809        }
 810
 811        ha->iobase =
 812            ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
 813        if (!ha->iobase) {
 814                ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
 815                    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
 816                goto iospace_error_exit;
 817        }
 818
 819        /* Determine queue resources */
 820        ha->max_req_queues = ha->max_rsp_queues = 1;
 821
 822        ql_log_pci(ql_log_info, ha->pdev, 0x012c,
 823            "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
 824            ha->bars, ha->cregbase, ha->iobase);
 825
 826        return 0;
 827
 828iospace_error_exit:
 829        return -ENOMEM;
 830}
 831
 832static void
 833qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
 834{
 835        struct qla_hw_data *ha = vha->hw;
 836        struct req_que *req = ha->req_q_map[0];
 837        struct rsp_que *rsp = ha->rsp_q_map[0];
 838
 839        req->length_fx00 = req->length;
 840        req->ring_fx00 = req->ring;
 841        req->dma_fx00 = req->dma;
 842
 843        rsp->length_fx00 = rsp->length;
 844        rsp->ring_fx00 = rsp->ring;
 845        rsp->dma_fx00 = rsp->dma;
 846
 847        ql_dbg(ql_dbg_init, vha, 0x012d,
 848            "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
 849            "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
 850            req->length_fx00, (u64)req->dma_fx00);
 851
 852        ql_dbg(ql_dbg_init, vha, 0x012e,
 853            "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
 854            "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
 855            rsp->length_fx00, (u64)rsp->dma_fx00);
 856}
 857
 858static int
 859qlafx00_config_queues(struct scsi_qla_host *vha)
 860{
 861        struct qla_hw_data *ha = vha->hw;
 862        struct req_que *req = ha->req_q_map[0];
 863        struct rsp_que *rsp = ha->rsp_q_map[0];
 864        dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
 865
 866        req->length = ha->req_que_len;
 867        req->ring = (void __force *)ha->iobase + ha->req_que_off;
 868        req->dma = bar2_hdl + ha->req_que_off;
 869        if ((!req->ring) || (req->length == 0)) {
 870                ql_log_pci(ql_log_info, ha->pdev, 0x012f,
 871                    "Unable to allocate memory for req_ring\n");
 872                return QLA_FUNCTION_FAILED;
 873        }
 874
 875        ql_dbg(ql_dbg_init, vha, 0x0130,
 876            "req: %p req_ring pointer %p req len 0x%x "
 877            "req off 0x%x\n, req->dma: 0x%llx",
 878            req, req->ring, req->length,
 879            ha->req_que_off, (u64)req->dma);
 880
 881        rsp->length = ha->rsp_que_len;
 882        rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
 883        rsp->dma = bar2_hdl + ha->rsp_que_off;
 884        if ((!rsp->ring) || (rsp->length == 0)) {
 885                ql_log_pci(ql_log_info, ha->pdev, 0x0131,
 886                    "Unable to allocate memory for rsp_ring\n");
 887                return QLA_FUNCTION_FAILED;
 888        }
 889
 890        ql_dbg(ql_dbg_init, vha, 0x0132,
 891            "rsp: %p rsp_ring pointer %p rsp len 0x%x "
 892            "rsp off 0x%x, rsp->dma: 0x%llx\n",
 893            rsp, rsp->ring, rsp->length,
 894            ha->rsp_que_off, (u64)rsp->dma);
 895
 896        return QLA_SUCCESS;
 897}
 898
 899static int
 900qlafx00_init_fw_ready(scsi_qla_host_t *vha)
 901{
 902        int rval = 0;
 903        unsigned long wtime;
 904        uint16_t wait_time;     /* Wait time */
 905        struct qla_hw_data *ha = vha->hw;
 906        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
 907        uint32_t aenmbx, aenmbx7 = 0;
 908        uint32_t pseudo_aen;
 909        uint32_t state[5];
 910        bool done = false;
 911
 912        /* 30 seconds wait - Adjust if required */
 913        wait_time = 30;
 914
 915        pseudo_aen = RD_REG_DWORD(&reg->pseudoaen);
 916        if (pseudo_aen == 1) {
 917                aenmbx7 = RD_REG_DWORD(&reg->initval7);
 918                ha->mbx_intr_code = MSW(aenmbx7);
 919                ha->rqstq_intr_code = LSW(aenmbx7);
 920                rval = qlafx00_driver_shutdown(vha, 10);
 921                if (rval != QLA_SUCCESS)
 922                        qlafx00_soft_reset(vha);
 923        }
 924
 925        /* wait time before firmware ready */
 926        wtime = jiffies + (wait_time * HZ);
 927        do {
 928                aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
 929                barrier();
 930                ql_dbg(ql_dbg_mbx, vha, 0x0133,
 931                    "aenmbx: 0x%x\n", aenmbx);
 932
 933                switch (aenmbx) {
 934                case MBA_FW_NOT_STARTED:
 935                case MBA_FW_STARTING:
 936                        break;
 937
 938                case MBA_SYSTEM_ERR:
 939                case MBA_REQ_TRANSFER_ERR:
 940                case MBA_RSP_TRANSFER_ERR:
 941                case MBA_FW_INIT_FAILURE:
 942                        qlafx00_soft_reset(vha);
 943                        break;
 944
 945                case MBA_FW_RESTART_CMPLT:
 946                        /* Set the mbx and rqstq intr code */
 947                        aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
 948                        ha->mbx_intr_code = MSW(aenmbx7);
 949                        ha->rqstq_intr_code = LSW(aenmbx7);
 950                        ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
 951                        ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
 952                        ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
 953                        ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
 954                        WRT_REG_DWORD(&reg->aenmailbox0, 0);
 955                        RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
 956                        ql_dbg(ql_dbg_init, vha, 0x0134,
 957                            "f/w returned mbx_intr_code: 0x%x, "
 958                            "rqstq_intr_code: 0x%x\n",
 959                            ha->mbx_intr_code, ha->rqstq_intr_code);
 960                        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 961                        rval = QLA_SUCCESS;
 962                        done = true;
 963                        break;
 964
 965                default:
 966                        if ((aenmbx & 0xFF00) == MBA_FW_INIT_INPROGRESS)
 967                                break;
 968
 969                        /* If fw is apparently not ready. In order to continue,
 970                         * we might need to issue Mbox cmd, but the problem is
 971                         * that the DoorBell vector values that come with the
 972                         * 8060 AEN are most likely gone by now (and thus no
 973                         * bell would be rung on the fw side when mbox cmd is
 974                         * issued). We have to therefore grab the 8060 AEN
 975                         * shadow regs (filled in by FW when the last 8060
 976                         * AEN was being posted).
 977                         * Do the following to determine what is needed in
 978                         * order to get the FW ready:
 979                         * 1. reload the 8060 AEN values from the shadow regs
 980                         * 2. clear int status to get rid of possible pending
 981                         *    interrupts
 982                         * 3. issue Get FW State Mbox cmd to determine fw state
 983                         * Set the mbx and rqstq intr code from Shadow Regs
 984                         */
 985                        aenmbx7 = RD_REG_DWORD(&reg->initval7);
 986                        ha->mbx_intr_code = MSW(aenmbx7);
 987                        ha->rqstq_intr_code = LSW(aenmbx7);
 988                        ha->req_que_off = RD_REG_DWORD(&reg->initval1);
 989                        ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
 990                        ha->req_que_len = RD_REG_DWORD(&reg->initval5);
 991                        ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
 992                        ql_dbg(ql_dbg_init, vha, 0x0135,
 993                            "f/w returned mbx_intr_code: 0x%x, "
 994                            "rqstq_intr_code: 0x%x\n",
 995                            ha->mbx_intr_code, ha->rqstq_intr_code);
 996                        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
 997
 998                        /* Get the FW state */
 999                        rval = qlafx00_get_firmware_state(vha, state);
1000                        if (rval != QLA_SUCCESS) {
1001                                /* Retry if timer has not expired */
1002                                break;
1003                        }
1004
1005                        if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1006                                /* Firmware is waiting to be
1007                                 * initialized by driver
1008                                 */
1009                                rval = QLA_SUCCESS;
1010                                done = true;
1011                                break;
1012                        }
1013
1014                        /* Issue driver shutdown and wait until f/w recovers.
1015                         * Driver should continue to poll until 8060 AEN is
1016                         * received indicating firmware recovery.
1017                         */
1018                        ql_dbg(ql_dbg_init, vha, 0x0136,
1019                            "Sending Driver shutdown fw_state 0x%x\n",
1020                            state[0]);
1021
1022                        rval = qlafx00_driver_shutdown(vha, 10);
1023                        if (rval != QLA_SUCCESS) {
1024                                rval = QLA_FUNCTION_FAILED;
1025                                break;
1026                        }
1027                        msleep(500);
1028
1029                        wtime = jiffies + (wait_time * HZ);
1030                        break;
1031                }
1032
1033                if (!done) {
1034                        if (time_after_eq(jiffies, wtime)) {
1035                                ql_dbg(ql_dbg_init, vha, 0x0137,
1036                                    "Init f/w failed: aen[7]: 0x%x\n",
1037                                    RD_REG_DWORD(&reg->aenmailbox7));
1038                                rval = QLA_FUNCTION_FAILED;
1039                                done = true;
1040                                break;
1041                        }
1042                        /* Delay for a while */
1043                        msleep(500);
1044                }
1045        } while (!done);
1046
1047        if (rval)
1048                ql_dbg(ql_dbg_init, vha, 0x0138,
1049                    "%s **** FAILED ****.\n", __func__);
1050        else
1051                ql_dbg(ql_dbg_init, vha, 0x0139,
1052                    "%s **** SUCCESS ****.\n", __func__);
1053
1054        return rval;
1055}
1056
1057/*
1058 * qlafx00_fw_ready() - Waits for firmware ready.
1059 * @ha: HA context
1060 *
1061 * Returns 0 on success.
1062 */
1063int
1064qlafx00_fw_ready(scsi_qla_host_t *vha)
1065{
1066        int             rval;
1067        unsigned long   wtime;
1068        uint16_t        wait_time;      /* Wait time if loop is coming ready */
1069        uint32_t        state[5];
1070
1071        rval = QLA_SUCCESS;
1072
1073        wait_time = 10;
1074
1075        /* wait time before firmware ready */
1076        wtime = jiffies + (wait_time * HZ);
1077
1078        /* Wait for ISP to finish init */
1079        if (!vha->flags.init_done)
1080                ql_dbg(ql_dbg_init, vha, 0x013a,
1081                    "Waiting for init to complete...\n");
1082
1083        do {
1084                rval = qlafx00_get_firmware_state(vha, state);
1085
1086                if (rval == QLA_SUCCESS) {
1087                        if (state[0] == FSTATE_FX00_INITIALIZED) {
1088                                ql_dbg(ql_dbg_init, vha, 0x013b,
1089                                    "fw_state=%x\n", state[0]);
1090                                rval = QLA_SUCCESS;
1091                                        break;
1092                        }
1093                }
1094                rval = QLA_FUNCTION_FAILED;
1095
1096                if (time_after_eq(jiffies, wtime))
1097                        break;
1098
1099                /* Delay for a while */
1100                msleep(500);
1101
1102                ql_dbg(ql_dbg_init, vha, 0x013c,
1103                    "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1104        } while (1);
1105
1106
1107        if (rval)
1108                ql_dbg(ql_dbg_init, vha, 0x013d,
1109                    "Firmware ready **** FAILED ****.\n");
1110        else
1111                ql_dbg(ql_dbg_init, vha, 0x013e,
1112                    "Firmware ready **** SUCCESS ****.\n");
1113
1114        return rval;
1115}
1116
1117static int
1118qlafx00_find_all_targets(scsi_qla_host_t *vha,
1119        struct list_head *new_fcports)
1120{
1121        int             rval;
1122        uint16_t        tgt_id;
1123        fc_port_t       *fcport, *new_fcport;
1124        int             found;
1125        struct qla_hw_data *ha = vha->hw;
1126
1127        rval = QLA_SUCCESS;
1128
1129        if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1130                return QLA_FUNCTION_FAILED;
1131
1132        if ((atomic_read(&vha->loop_down_timer) ||
1133             STATE_TRANSITION(vha))) {
1134                atomic_set(&vha->loop_down_timer, 0);
1135                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1136                return QLA_FUNCTION_FAILED;
1137        }
1138
1139        ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1140            "Listing Target bit map...\n");
1141        ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
1142            0x2089, (uint8_t *)ha->gid_list, 32);
1143
1144        /* Allocate temporary rmtport for any new rmtports discovered. */
1145        new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1146        if (new_fcport == NULL)
1147                return QLA_MEMORY_ALLOC_FAILED;
1148
1149        for_each_set_bit(tgt_id, (void *)ha->gid_list,
1150            QLAFX00_TGT_NODE_LIST_SIZE) {
1151
1152                /* Send get target node info */
1153                new_fcport->tgt_id = tgt_id;
1154                rval = qlafx00_fx_disc(vha, new_fcport,
1155                    FXDISC_GET_TGT_NODE_INFO);
1156                if (rval != QLA_SUCCESS) {
1157                        ql_log(ql_log_warn, vha, 0x208a,
1158                            "Target info scan failed -- assuming zero-entry "
1159                            "result...\n");
1160                        continue;
1161                }
1162
1163                /* Locate matching device in database. */
1164                found = 0;
1165                list_for_each_entry(fcport, &vha->vp_fcports, list) {
1166                        if (memcmp(new_fcport->port_name,
1167                            fcport->port_name, WWN_SIZE))
1168                                continue;
1169
1170                        found++;
1171
1172                        /*
1173                         * If tgt_id is same and state FCS_ONLINE, nothing
1174                         * changed.
1175                         */
1176                        if (fcport->tgt_id == new_fcport->tgt_id &&
1177                            atomic_read(&fcport->state) == FCS_ONLINE)
1178                                break;
1179
1180                        /*
1181                         * Tgt ID changed or device was marked to be updated.
1182                         */
1183                        ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1184                            "TGT-ID Change(%s): Present tgt id: "
1185                            "0x%x state: 0x%x "
1186                            "wwnn = %llx wwpn = %llx.\n",
1187                            __func__, fcport->tgt_id,
1188                            atomic_read(&fcport->state),
1189                            (unsigned long long)wwn_to_u64(fcport->node_name),
1190                            (unsigned long long)wwn_to_u64(fcport->port_name));
1191
1192                        ql_log(ql_log_info, vha, 0x208c,
1193                            "TGT-ID Announce(%s): Discovered tgt "
1194                            "id 0x%x wwnn = %llx "
1195                            "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1196                            (unsigned long long)
1197                            wwn_to_u64(new_fcport->node_name),
1198                            (unsigned long long)
1199                            wwn_to_u64(new_fcport->port_name));
1200
1201                        if (atomic_read(&fcport->state) != FCS_ONLINE) {
1202                                fcport->old_tgt_id = fcport->tgt_id;
1203                                fcport->tgt_id = new_fcport->tgt_id;
1204                                ql_log(ql_log_info, vha, 0x208d,
1205                                   "TGT-ID: New fcport Added: %p\n", fcport);
1206                                qla2x00_update_fcport(vha, fcport);
1207                        } else {
1208                                ql_log(ql_log_info, vha, 0x208e,
1209                                    " Existing TGT-ID %x did not get "
1210                                    " offline event from firmware.\n",
1211                                    fcport->old_tgt_id);
1212                                qla2x00_mark_device_lost(vha, fcport, 0, 0);
1213                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1214                                kfree(new_fcport);
1215                                return rval;
1216                        }
1217                        break;
1218                }
1219
1220                if (found)
1221                        continue;
1222
1223                /* If device was not in our fcports list, then add it. */
1224                list_add_tail(&new_fcport->list, new_fcports);
1225
1226                /* Allocate a new replacement fcport. */
1227                new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1228                if (new_fcport == NULL)
1229                        return QLA_MEMORY_ALLOC_FAILED;
1230        }
1231
1232        kfree(new_fcport);
1233        return rval;
1234}
1235
1236/*
1237 * qlafx00_configure_all_targets
1238 *      Setup target devices with node ID's.
1239 *
1240 * Input:
1241 *      ha = adapter block pointer.
1242 *
1243 * Returns:
1244 *      0 = success.
1245 *      BIT_0 = error
1246 */
1247static int
1248qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1249{
1250        int rval;
1251        fc_port_t *fcport, *rmptemp;
1252        LIST_HEAD(new_fcports);
1253
1254        rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1255            FXDISC_GET_TGT_NODE_LIST);
1256        if (rval != QLA_SUCCESS) {
1257                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1258                return rval;
1259        }
1260
1261        rval = qlafx00_find_all_targets(vha, &new_fcports);
1262        if (rval != QLA_SUCCESS) {
1263                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1264                return rval;
1265        }
1266
1267        /*
1268         * Delete all previous devices marked lost.
1269         */
1270        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1271                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1272                        break;
1273
1274                if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1275                        if (fcport->port_type != FCT_INITIATOR)
1276                                qla2x00_mark_device_lost(vha, fcport, 0, 0);
1277                }
1278        }
1279
1280        /*
1281         * Add the new devices to our devices list.
1282         */
1283        list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1284                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1285                        break;
1286
1287                qla2x00_update_fcport(vha, fcport);
1288                list_move_tail(&fcport->list, &vha->vp_fcports);
1289                ql_log(ql_log_info, vha, 0x208f,
1290                    "Attach new target id 0x%x wwnn = %llx "
1291                    "wwpn = %llx.\n",
1292                    fcport->tgt_id,
1293                    (unsigned long long)wwn_to_u64(fcport->node_name),
1294                    (unsigned long long)wwn_to_u64(fcport->port_name));
1295        }
1296
1297        /* Free all new device structures not processed. */
1298        list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1299                list_del(&fcport->list);
1300                kfree(fcport);
1301        }
1302
1303        return rval;
1304}
1305
1306/*
1307 * qlafx00_configure_devices
1308 *      Updates Fibre Channel Device Database with what is actually on loop.
1309 *
1310 * Input:
1311 *      ha                = adapter block pointer.
1312 *
1313 * Returns:
1314 *      0 = success.
1315 *      1 = error.
1316 *      2 = database was full and device was not configured.
1317 */
1318int
1319qlafx00_configure_devices(scsi_qla_host_t *vha)
1320{
1321        int  rval;
1322        unsigned long flags;
1323        rval = QLA_SUCCESS;
1324
1325        flags = vha->dpc_flags;
1326
1327        ql_dbg(ql_dbg_disc, vha, 0x2090,
1328            "Configure devices -- dpc flags =0x%lx\n", flags);
1329
1330        rval = qlafx00_configure_all_targets(vha);
1331
1332        if (rval == QLA_SUCCESS) {
1333                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1334                        rval = QLA_FUNCTION_FAILED;
1335                } else {
1336                        atomic_set(&vha->loop_state, LOOP_READY);
1337                        ql_log(ql_log_info, vha, 0x2091,
1338                            "Device Ready\n");
1339                }
1340        }
1341
1342        if (rval) {
1343                ql_dbg(ql_dbg_disc, vha, 0x2092,
1344                    "%s *** FAILED ***.\n", __func__);
1345        } else {
1346                ql_dbg(ql_dbg_disc, vha, 0x2093,
1347                    "%s: exiting normally.\n", __func__);
1348        }
1349        return rval;
1350}
1351
1352static void
1353qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
1354{
1355        struct qla_hw_data *ha = vha->hw;
1356        fc_port_t *fcport;
1357
1358        vha->flags.online = 0;
1359        ha->mr.fw_hbt_en = 0;
1360
1361        if (!critemp) {
1362                ha->flags.chip_reset_done = 0;
1363                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1364                vha->qla_stats.total_isp_aborts++;
1365                ql_log(ql_log_info, vha, 0x013f,
1366                    "Performing ISP error recovery - ha = %p.\n", ha);
1367                ha->isp_ops->reset_chip(vha);
1368        }
1369
1370        if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1371                atomic_set(&vha->loop_state, LOOP_DOWN);
1372                atomic_set(&vha->loop_down_timer,
1373                    QLAFX00_LOOP_DOWN_TIME);
1374        } else {
1375                if (!atomic_read(&vha->loop_down_timer))
1376                        atomic_set(&vha->loop_down_timer,
1377                            QLAFX00_LOOP_DOWN_TIME);
1378        }
1379
1380        /* Clear all async request states across all VPs. */
1381        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1382                fcport->flags = 0;
1383                if (atomic_read(&fcport->state) == FCS_ONLINE)
1384                        qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1385        }
1386
1387        if (!ha->flags.eeh_busy) {
1388                if (critemp) {
1389                        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
1390                } else {
1391                        /* Requeue all commands in outstanding command list. */
1392                        qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1393                }
1394        }
1395
1396        qla2x00_free_irqs(vha);
1397        if (critemp)
1398                set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
1399        else
1400                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1401
1402        /* Clear the Interrupts */
1403        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1404
1405        ql_log(ql_log_info, vha, 0x0140,
1406            "%s Done done - ha=%p.\n", __func__, ha);
1407}
1408
1409/**
1410 * qlafx00_init_response_q_entries() - Initializes response queue entries.
1411 * @rsp: response queue
1412 *
1413 * Beginning of request ring has initialization control block already built
1414 * by nvram config routine.
1415 *
1416 * Returns 0 on success.
1417 */
1418void
1419qlafx00_init_response_q_entries(struct rsp_que *rsp)
1420{
1421        uint16_t cnt;
1422        response_t *pkt;
1423
1424        rsp->ring_ptr = rsp->ring;
1425        rsp->ring_index    = 0;
1426        rsp->status_srb = NULL;
1427        pkt = rsp->ring_ptr;
1428        for (cnt = 0; cnt < rsp->length; cnt++) {
1429                pkt->signature = RESPONSE_PROCESSED;
1430                WRT_REG_DWORD((void __force __iomem *)&pkt->signature,
1431                    RESPONSE_PROCESSED);
1432                pkt++;
1433        }
1434}
1435
1436int
1437qlafx00_rescan_isp(scsi_qla_host_t *vha)
1438{
1439        uint32_t status = QLA_FUNCTION_FAILED;
1440        struct qla_hw_data *ha = vha->hw;
1441        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1442        uint32_t aenmbx7;
1443
1444        qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1445
1446        aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
1447        ha->mbx_intr_code = MSW(aenmbx7);
1448        ha->rqstq_intr_code = LSW(aenmbx7);
1449        ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
1450        ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
1451        ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
1452        ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
1453
1454        ql_dbg(ql_dbg_disc, vha, 0x2094,
1455            "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1456            " Req que offset 0x%x Rsp que offset 0x%x\n",
1457            ha->mbx_intr_code, ha->rqstq_intr_code,
1458            ha->req_que_off, ha->rsp_que_len);
1459
1460        /* Clear the Interrupts */
1461        QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1462
1463        status = qla2x00_init_rings(vha);
1464        if (!status) {
1465                vha->flags.online = 1;
1466
1467                /* if no cable then assume it's good */
1468                if ((vha->device_flags & DFLG_NO_CABLE))
1469                        status = 0;
1470                /* Register system information */
1471                if (qlafx00_fx_disc(vha,
1472                    &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1473                        ql_dbg(ql_dbg_disc, vha, 0x2095,
1474                            "failed to register host info\n");
1475        }
1476        scsi_unblock_requests(vha->host);
1477        return status;
1478}
1479
1480void
1481qlafx00_timer_routine(scsi_qla_host_t *vha)
1482{
1483        struct qla_hw_data *ha = vha->hw;
1484        uint32_t fw_heart_beat;
1485        uint32_t aenmbx0;
1486        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1487        uint32_t tempc;
1488
1489        /* Check firmware health */
1490        if (ha->mr.fw_hbt_cnt)
1491                ha->mr.fw_hbt_cnt--;
1492        else {
1493                if ((!ha->flags.mr_reset_hdlr_active) &&
1494                    (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1495                    (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1496                    (ha->mr.fw_hbt_en)) {
1497                        fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
1498                        if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1499                                ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1500                                ha->mr.fw_hbt_miss_cnt = 0;
1501                        } else {
1502                                ha->mr.fw_hbt_miss_cnt++;
1503                                if (ha->mr.fw_hbt_miss_cnt ==
1504                                    QLAFX00_HEARTBEAT_MISS_CNT) {
1505                                        set_bit(ISP_ABORT_NEEDED,
1506                                            &vha->dpc_flags);
1507                                        qla2xxx_wake_dpc(vha);
1508                                        ha->mr.fw_hbt_miss_cnt = 0;
1509                                }
1510                        }
1511                }
1512                ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1513        }
1514
1515        if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1516                /* Reset recovery to be performed in timer routine */
1517                aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
1518                if (ha->mr.fw_reset_timer_exp) {
1519                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1520                        qla2xxx_wake_dpc(vha);
1521                        ha->mr.fw_reset_timer_exp = 0;
1522                } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1523                        /* Wake up DPC to rescan the targets */
1524                        set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1525                        clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1526                        qla2xxx_wake_dpc(vha);
1527                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1528                } else if ((aenmbx0 == MBA_FW_STARTING) &&
1529                    (!ha->mr.fw_hbt_en)) {
1530                        ha->mr.fw_hbt_en = 1;
1531                } else if (!ha->mr.fw_reset_timer_tick) {
1532                        if (aenmbx0 == ha->mr.old_aenmbx0_state)
1533                                ha->mr.fw_reset_timer_exp = 1;
1534                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1535                } else if (aenmbx0 == 0xFFFFFFFF) {
1536                        uint32_t data0, data1;
1537
1538                        data0 = QLAFX00_RD_REG(ha,
1539                            QLAFX00_BAR1_BASE_ADDR_REG);
1540                        data1 = QLAFX00_RD_REG(ha,
1541                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1542
1543                        data0 &= 0xffff0000;
1544                        data1 &= 0x0000ffff;
1545
1546                        QLAFX00_WR_REG(ha,
1547                            QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1548                            (data0 | data1));
1549                } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1550                        ha->mr.fw_reset_timer_tick =
1551                            QLAFX00_MAX_RESET_INTERVAL;
1552                } else if (aenmbx0 == MBA_FW_RESET_FCT) {
1553                        ha->mr.fw_reset_timer_tick =
1554                            QLAFX00_MAX_RESET_INTERVAL;
1555                }
1556                if (ha->mr.old_aenmbx0_state != aenmbx0) {
1557                        ha->mr.old_aenmbx0_state = aenmbx0;
1558                        ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1559                }
1560                ha->mr.fw_reset_timer_tick--;
1561        }
1562        if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
1563                /*
1564                 * Critical temperature recovery to be
1565                 * performed in timer routine
1566                 */
1567                if (ha->mr.fw_critemp_timer_tick == 0) {
1568                        tempc = QLAFX00_GET_TEMPERATURE(ha);
1569                        ql_dbg(ql_dbg_timer, vha, 0x6012,
1570                            "ISPFx00(%s): Critical temp timer, "
1571                            "current SOC temperature: %d\n",
1572                            __func__, tempc);
1573                        if (tempc < ha->mr.critical_temperature) {
1574                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1575                                clear_bit(FX00_CRITEMP_RECOVERY,
1576                                    &vha->dpc_flags);
1577                                qla2xxx_wake_dpc(vha);
1578                        }
1579                        ha->mr.fw_critemp_timer_tick =
1580                            QLAFX00_CRITEMP_INTERVAL;
1581                } else {
1582                        ha->mr.fw_critemp_timer_tick--;
1583                }
1584        }
1585        if (ha->mr.host_info_resend) {
1586                /*
1587                 * Incomplete host info might be sent to firmware
1588                 * durinng system boot - info should be resend
1589                 */
1590                if (ha->mr.hinfo_resend_timer_tick == 0) {
1591                        ha->mr.host_info_resend = false;
1592                        set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
1593                        ha->mr.hinfo_resend_timer_tick =
1594                            QLAFX00_HINFO_RESEND_INTERVAL;
1595                        qla2xxx_wake_dpc(vha);
1596                } else {
1597                        ha->mr.hinfo_resend_timer_tick--;
1598                }
1599        }
1600
1601}
1602
1603/*
1604 *  qlfx00a_reset_initialize
1605 *      Re-initialize after a iSA device reset.
1606 *
1607 * Input:
1608 *      ha  = adapter block pointer.
1609 *
1610 * Returns:
1611 *      0 = success
1612 */
1613int
1614qlafx00_reset_initialize(scsi_qla_host_t *vha)
1615{
1616        struct qla_hw_data *ha = vha->hw;
1617
1618        if (vha->device_flags & DFLG_DEV_FAILED) {
1619                ql_dbg(ql_dbg_init, vha, 0x0142,
1620                    "Device in failed state\n");
1621                return QLA_SUCCESS;
1622        }
1623
1624        ha->flags.mr_reset_hdlr_active = 1;
1625
1626        if (vha->flags.online) {
1627                scsi_block_requests(vha->host);
1628                qlafx00_abort_isp_cleanup(vha, false);
1629        }
1630
1631        ql_log(ql_log_info, vha, 0x0143,
1632            "(%s): succeeded.\n", __func__);
1633        ha->flags.mr_reset_hdlr_active = 0;
1634        return QLA_SUCCESS;
1635}
1636
1637/*
1638 *  qlafx00_abort_isp
1639 *      Resets ISP and aborts all outstanding commands.
1640 *
1641 * Input:
1642 *      ha  = adapter block pointer.
1643 *
1644 * Returns:
1645 *      0 = success
1646 */
1647int
1648qlafx00_abort_isp(scsi_qla_host_t *vha)
1649{
1650        struct qla_hw_data *ha = vha->hw;
1651
1652        if (vha->flags.online) {
1653                if (unlikely(pci_channel_offline(ha->pdev) &&
1654                    ha->flags.pci_channel_io_perm_failure)) {
1655                        clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1656                        return QLA_SUCCESS;
1657                }
1658
1659                scsi_block_requests(vha->host);
1660                qlafx00_abort_isp_cleanup(vha, false);
1661        } else {
1662                scsi_block_requests(vha->host);
1663                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1664                vha->qla_stats.total_isp_aborts++;
1665                ha->isp_ops->reset_chip(vha);
1666                set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1667                /* Clear the Interrupts */
1668                QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1669        }
1670
1671        ql_log(ql_log_info, vha, 0x0145,
1672            "(%s): succeeded.\n", __func__);
1673
1674        return QLA_SUCCESS;
1675}
1676
1677static inline fc_port_t*
1678qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1679{
1680        fc_port_t       *fcport;
1681
1682        /* Check for matching device in remote port list. */
1683        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1684                if (fcport->tgt_id == tgt_id) {
1685                        ql_dbg(ql_dbg_async, vha, 0x5072,
1686                            "Matching fcport(%p) found with TGT-ID: 0x%x "
1687                            "and Remote TGT_ID: 0x%x\n",
1688                            fcport, fcport->tgt_id, tgt_id);
1689                        return fcport;
1690                }
1691        }
1692        return NULL;
1693}
1694
1695static void
1696qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1697{
1698        fc_port_t       *fcport;
1699
1700        ql_log(ql_log_info, vha, 0x5073,
1701            "Detach TGT-ID: 0x%x\n", tgt_id);
1702
1703        fcport = qlafx00_get_fcport(vha, tgt_id);
1704        if (!fcport)
1705                return;
1706
1707        qla2x00_mark_device_lost(vha, fcport, 0, 0);
1708
1709        return;
1710}
1711
1712int
1713qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1714{
1715        int rval = 0;
1716        uint32_t aen_code, aen_data;
1717
1718        aen_code = FCH_EVT_VENDOR_UNIQUE;
1719        aen_data = evt->u.aenfx.evtcode;
1720
1721        switch (evt->u.aenfx.evtcode) {
1722        case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
1723                if (evt->u.aenfx.mbx[1] == 0) {
1724                        if (evt->u.aenfx.mbx[2] == 1) {
1725                                if (!vha->flags.fw_tgt_reported)
1726                                        vha->flags.fw_tgt_reported = 1;
1727                                atomic_set(&vha->loop_down_timer, 0);
1728                                atomic_set(&vha->loop_state, LOOP_UP);
1729                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1730                                qla2xxx_wake_dpc(vha);
1731                        } else if (evt->u.aenfx.mbx[2] == 2) {
1732                                qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1733                        }
1734                } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1735                        if (evt->u.aenfx.mbx[2] == 1) {
1736                                if (!vha->flags.fw_tgt_reported)
1737                                        vha->flags.fw_tgt_reported = 1;
1738                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1739                        } else if (evt->u.aenfx.mbx[2] == 2) {
1740                                vha->device_flags |= DFLG_NO_CABLE;
1741                                qla2x00_mark_all_devices_lost(vha, 1);
1742                        }
1743                }
1744                break;
1745        case QLAFX00_MBA_LINK_UP:
1746                aen_code = FCH_EVT_LINKUP;
1747                aen_data = 0;
1748                break;
1749        case QLAFX00_MBA_LINK_DOWN:
1750                aen_code = FCH_EVT_LINKDOWN;
1751                aen_data = 0;
1752                break;
1753        case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
1754                ql_log(ql_log_info, vha, 0x5082,
1755                    "Process critical temperature event "
1756                    "aenmb[0]: %x\n",
1757                    evt->u.aenfx.evtcode);
1758                scsi_block_requests(vha->host);
1759                qlafx00_abort_isp_cleanup(vha, true);
1760                scsi_unblock_requests(vha->host);
1761                break;
1762        }
1763
1764        fc_host_post_event(vha->host, fc_get_event_number(),
1765            aen_code, aen_data);
1766
1767        return rval;
1768}
1769
1770static void
1771qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1772{
1773        u64 port_name = 0, node_name = 0;
1774
1775        port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1776        node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1777
1778        fc_host_node_name(vha->host) = node_name;
1779        fc_host_port_name(vha->host) = port_name;
1780        if (!pinfo->port_type)
1781                vha->hw->current_topology = ISP_CFG_F;
1782        if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1783                atomic_set(&vha->loop_state, LOOP_READY);
1784        else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1785                atomic_set(&vha->loop_state, LOOP_DOWN);
1786        vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1787}
1788
1789static void
1790qla2x00_fxdisc_iocb_timeout(void *data)
1791{
1792        srb_t *sp = data;
1793        struct srb_iocb *lio = &sp->u.iocb_cmd;
1794
1795        complete(&lio->u.fxiocb.fxiocb_comp);
1796}
1797
1798static void
1799qla2x00_fxdisc_sp_done(void *ptr, int res)
1800{
1801        srb_t *sp = ptr;
1802        struct srb_iocb *lio = &sp->u.iocb_cmd;
1803
1804        complete(&lio->u.fxiocb.fxiocb_comp);
1805}
1806
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                        strncpy(phost_info->sysname,
1881                            p_sysid->sysname, SYSNAME_LENGTH);
1882                        strncpy(phost_info->nodename,
1883                            p_sysid->nodename, NODENAME_LENGTH);
1884                        if (!strcmp(phost_info->nodename, "(none)"))
1885                                ha->mr.host_info_resend = true;
1886                        strncpy(phost_info->release,
1887                            p_sysid->release, RELEASE_LENGTH);
1888                        strncpy(phost_info->version,
1889                            p_sysid->version, VERSION_LENGTH);
1890                        strncpy(phost_info->machine,
1891                            p_sysid->machine, MACHINE_LENGTH);
1892                        strncpy(phost_info->domainname,
1893                            p_sysid->domainname, DOMNAME_LENGTH);
1894                        strncpy(phost_info->hostdriver,
1895                            QLA2XXX_VERSION, VERSION_LENGTH);
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                            (uint8_t *)phost_info,
1917                            sizeof(struct host_system_info));
1918                }
1919        }
1920
1921        if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1922                fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1923                    fdisc->u.fxiocb.rsp_len,
1924                    &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1925                if (!fdisc->u.fxiocb.rsp_addr)
1926                        goto done_unmap_req;
1927        }
1928
1929        fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1930        sp->done = qla2x00_fxdisc_sp_done;
1931
1932        rval = qla2x00_start_sp(sp);
1933        if (rval != QLA_SUCCESS)
1934                goto done_unmap_dma;
1935
1936        wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1937
1938        if (fx_type == FXDISC_GET_CONFIG_INFO) {
1939                struct config_info_data *pinfo =
1940                    (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1941                strcpy(vha->hw->model_number, pinfo->model_num);
1942                strcpy(vha->hw->model_desc, pinfo->model_description);
1943                memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1944                    sizeof(vha->hw->mr.symbolic_name));
1945                memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1946                    sizeof(vha->hw->mr.serial_num));
1947                memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1948                    sizeof(vha->hw->mr.hw_version));
1949                memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1950                    sizeof(vha->hw->mr.fw_version));
1951                strim(vha->hw->mr.fw_version);
1952                memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1953                    sizeof(vha->hw->mr.uboot_version));
1954                memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1955                    sizeof(vha->hw->mr.fru_serial_num));
1956                vha->hw->mr.critical_temperature =
1957                    (pinfo->nominal_temp_value) ?
1958                    pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
1959                ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
1960                    QLAFX00_EXTENDED_IO_EN_MASK) != 0;
1961        } else if (fx_type == FXDISC_GET_PORT_INFO) {
1962                struct port_info_data *pinfo =
1963                    (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1964                memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1965                memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1966                vha->d_id.b.domain = pinfo->port_id[0];
1967                vha->d_id.b.area = pinfo->port_id[1];
1968                vha->d_id.b.al_pa = pinfo->port_id[2];
1969                qlafx00_update_host_attr(vha, pinfo);
1970                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1971                    (uint8_t *)pinfo, 16);
1972        } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1973                struct qlafx00_tgt_node_info *pinfo =
1974                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1975                memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1976                memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1977                fcport->port_type = FCT_TARGET;
1978                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1979                    (uint8_t *)pinfo, 16);
1980        } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1981                struct qlafx00_tgt_node_info *pinfo =
1982                    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1983                ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1984                    (uint8_t *)pinfo, 16);
1985                memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1986        } else if (fx_type == FXDISC_ABORT_IOCTL)
1987                fdisc->u.fxiocb.result =
1988                    (fdisc->u.fxiocb.result ==
1989                        cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
1990                    cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
1991
1992        rval = le32_to_cpu(fdisc->u.fxiocb.result);
1993
1994done_unmap_dma:
1995        if (fdisc->u.fxiocb.rsp_addr)
1996                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1997                    fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1998
1999done_unmap_req:
2000        if (fdisc->u.fxiocb.req_addr)
2001                dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
2002                    fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
2003done_free_sp:
2004        sp->free(sp);
2005done:
2006        return rval;
2007}
2008
2009/*
2010 * qlafx00_initialize_adapter
2011 *      Initialize board.
2012 *
2013 * Input:
2014 *      ha = adapter block pointer.
2015 *
2016 * Returns:
2017 *      0 = success
2018 */
2019int
2020qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2021{
2022        int     rval;
2023        struct qla_hw_data *ha = vha->hw;
2024        uint32_t tempc;
2025
2026        /* Clear adapter flags. */
2027        vha->flags.online = 0;
2028        ha->flags.chip_reset_done = 0;
2029        vha->flags.reset_active = 0;
2030        ha->flags.pci_channel_io_perm_failure = 0;
2031        ha->flags.eeh_busy = 0;
2032        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2033        atomic_set(&vha->loop_state, LOOP_DOWN);
2034        vha->device_flags = DFLG_NO_CABLE;
2035        vha->dpc_flags = 0;
2036        vha->flags.management_server_logged_in = 0;
2037        ha->isp_abort_cnt = 0;
2038        ha->beacon_blink_led = 0;
2039
2040        set_bit(0, ha->req_qid_map);
2041        set_bit(0, ha->rsp_qid_map);
2042
2043        ql_dbg(ql_dbg_init, vha, 0x0147,
2044            "Configuring PCI space...\n");
2045
2046        rval = ha->isp_ops->pci_config(vha);
2047        if (rval) {
2048                ql_log(ql_log_warn, vha, 0x0148,
2049                    "Unable to configure PCI space.\n");
2050                return rval;
2051        }
2052
2053        rval = qlafx00_init_fw_ready(vha);
2054        if (rval != QLA_SUCCESS)
2055                return rval;
2056
2057        qlafx00_save_queue_ptrs(vha);
2058
2059        rval = qlafx00_config_queues(vha);
2060        if (rval != QLA_SUCCESS)
2061                return rval;
2062
2063        /*
2064         * Allocate the array of outstanding commands
2065         * now that we know the firmware resources.
2066         */
2067        rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2068        if (rval != QLA_SUCCESS)
2069                return rval;
2070
2071        rval = qla2x00_init_rings(vha);
2072        ha->flags.chip_reset_done = 1;
2073
2074        tempc = QLAFX00_GET_TEMPERATURE(ha);
2075        ql_dbg(ql_dbg_init, vha, 0x0152,
2076            "ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
2077            __func__, tempc);
2078
2079        return rval;
2080}
2081
2082uint32_t
2083qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2084                      char *buf)
2085{
2086        scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2087        int rval = QLA_FUNCTION_FAILED;
2088        uint32_t state[1];
2089
2090        if (qla2x00_reset_active(vha))
2091                ql_log(ql_log_warn, vha, 0x70ce,
2092                    "ISP reset active.\n");
2093        else if (!vha->hw->flags.eeh_busy) {
2094                rval = qlafx00_get_firmware_state(vha, state);
2095        }
2096        if (rval != QLA_SUCCESS)
2097                memset(state, -1, sizeof(state));
2098
2099        return state[0];
2100}
2101
2102void
2103qlafx00_get_host_speed(struct Scsi_Host *shost)
2104{
2105        struct qla_hw_data *ha = ((struct scsi_qla_host *)
2106                                        (shost_priv(shost)))->hw;
2107        u32 speed = FC_PORTSPEED_UNKNOWN;
2108
2109        switch (ha->link_data_rate) {
2110        case QLAFX00_PORT_SPEED_2G:
2111                speed = FC_PORTSPEED_2GBIT;
2112                break;
2113        case QLAFX00_PORT_SPEED_4G:
2114                speed = FC_PORTSPEED_4GBIT;
2115                break;
2116        case QLAFX00_PORT_SPEED_8G:
2117                speed = FC_PORTSPEED_8GBIT;
2118                break;
2119        case QLAFX00_PORT_SPEED_10G:
2120                speed = FC_PORTSPEED_10GBIT;
2121                break;
2122        }
2123        fc_host_speed(shost) = speed;
2124}
2125
2126/** QLAFX00 specific ISR implementation functions */
2127
2128static inline void
2129qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2130                     uint32_t sense_len, struct rsp_que *rsp, int res)
2131{
2132        struct scsi_qla_host *vha = sp->vha;
2133        struct scsi_cmnd *cp = GET_CMD_SP(sp);
2134        uint32_t track_sense_len;
2135
2136        SET_FW_SENSE_LEN(sp, sense_len);
2137
2138        if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2139                sense_len = SCSI_SENSE_BUFFERSIZE;
2140
2141        SET_CMD_SENSE_LEN(sp, sense_len);
2142        SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2143        track_sense_len = sense_len;
2144
2145        if (sense_len > par_sense_len)
2146                sense_len = par_sense_len;
2147
2148        memcpy(cp->sense_buffer, sense_data, sense_len);
2149
2150        SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2151
2152        SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2153        track_sense_len -= sense_len;
2154        SET_CMD_SENSE_LEN(sp, track_sense_len);
2155
2156        ql_dbg(ql_dbg_io, vha, 0x304d,
2157            "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2158            sense_len, par_sense_len, track_sense_len);
2159        if (GET_FW_SENSE_LEN(sp) > 0) {
2160                rsp->status_srb = sp;
2161                cp->result = res;
2162        }
2163
2164        if (sense_len) {
2165                ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2166                    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2167                    sp->vha->host_no, cp->device->id, cp->device->lun,
2168                    cp);
2169                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2170                    cp->sense_buffer, sense_len);
2171        }
2172}
2173
2174static void
2175qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2176                      struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2177                      __le16 sstatus, __le16 cpstatus)
2178{
2179        struct srb_iocb *tmf;
2180
2181        tmf = &sp->u.iocb_cmd;
2182        if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
2183            (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
2184                cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2185        tmf->u.tmf.comp_status = cpstatus;
2186        sp->done(sp, 0);
2187}
2188
2189static void
2190qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2191                         struct abort_iocb_entry_fx00 *pkt)
2192{
2193        const char func[] = "ABT_IOCB";
2194        srb_t *sp;
2195        struct srb_iocb *abt;
2196
2197        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2198        if (!sp)
2199                return;
2200
2201        abt = &sp->u.iocb_cmd;
2202        abt->u.abt.comp_status = pkt->tgt_id_sts;
2203        sp->done(sp, 0);
2204}
2205
2206static void
2207qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2208                         struct ioctl_iocb_entry_fx00 *pkt)
2209{
2210        const char func[] = "IOSB_IOCB";
2211        srb_t *sp;
2212        struct bsg_job *bsg_job;
2213        struct fc_bsg_reply *bsg_reply;
2214        struct srb_iocb *iocb_job;
2215        int res = 0;
2216        struct qla_mt_iocb_rsp_fx00 fstatus;
2217        uint8_t *fw_sts_ptr;
2218
2219        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2220        if (!sp)
2221                return;
2222
2223        if (sp->type == SRB_FXIOCB_DCMD) {
2224                iocb_job = &sp->u.iocb_cmd;
2225                iocb_job->u.fxiocb.seq_number = pkt->seq_no;
2226                iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
2227                iocb_job->u.fxiocb.result = pkt->status;
2228                if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2229                        iocb_job->u.fxiocb.req_data =
2230                            pkt->dataword_r;
2231        } else {
2232                bsg_job = sp->u.bsg_job;
2233                bsg_reply = bsg_job->reply;
2234
2235                memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2236
2237                fstatus.reserved_1 = pkt->reserved_0;
2238                fstatus.func_type = pkt->comp_func_num;
2239                fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2240                fstatus.ioctl_data = pkt->dataword_r;
2241                fstatus.adapid = pkt->adapid;
2242                fstatus.reserved_2 = pkt->dataword_r_extra;
2243                fstatus.res_count = pkt->residuallen;
2244                fstatus.status = pkt->status;
2245                fstatus.seq_number = pkt->seq_no;
2246                memcpy(fstatus.reserved_3,
2247                    pkt->reserved_2, 20 * sizeof(uint8_t));
2248
2249                fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
2250
2251                memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
2252                    sizeof(struct qla_mt_iocb_rsp_fx00));
2253                bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2254                        sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2255
2256                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2257                    sp->fcport->vha, 0x5080,
2258                    (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));
2259
2260                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2261                    sp->fcport->vha, 0x5074,
2262                    (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));
2263
2264                res = bsg_reply->result = DID_OK << 16;
2265                bsg_reply->reply_payload_rcv_len =
2266                    bsg_job->reply_payload.payload_len;
2267        }
2268        sp->done(sp, res);
2269}
2270
2271/**
2272 * qlafx00_status_entry() - Process a Status IOCB entry.
2273 * @vha: SCSI driver HA context
2274 * @rsp: response queue
2275 * @pkt: Entry pointer
2276 */
2277static void
2278qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2279{
2280        srb_t           *sp;
2281        fc_port_t       *fcport;
2282        struct scsi_cmnd *cp;
2283        struct sts_entry_fx00 *sts;
2284        __le16          comp_status;
2285        __le16          scsi_status;
2286        __le16          lscsi_status;
2287        int32_t         resid;
2288        uint32_t        sense_len, par_sense_len, rsp_info_len, resid_len,
2289            fw_resid_len;
2290        uint8_t         *rsp_info = NULL, *sense_data = NULL;
2291        struct qla_hw_data *ha = vha->hw;
2292        uint32_t hindex, handle;
2293        uint16_t que;
2294        struct req_que *req;
2295        int logit = 1;
2296        int res = 0;
2297
2298        sts = (struct sts_entry_fx00 *) pkt;
2299
2300        comp_status = sts->comp_status;
2301        scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2302        hindex = sts->handle;
2303        handle = LSW(hindex);
2304
2305        que = MSW(hindex);
2306        req = ha->req_q_map[que];
2307
2308        /* Validate handle. */
2309        if (handle < req->num_outstanding_cmds)
2310                sp = req->outstanding_cmds[handle];
2311        else
2312                sp = NULL;
2313
2314        if (sp == NULL) {
2315                ql_dbg(ql_dbg_io, vha, 0x3034,
2316                    "Invalid status handle (0x%x).\n", handle);
2317
2318                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2319                qla2xxx_wake_dpc(vha);
2320                return;
2321        }
2322
2323        if (sp->type == SRB_TM_CMD) {
2324                req->outstanding_cmds[handle] = NULL;
2325                qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2326                    scsi_status, comp_status);
2327                return;
2328        }
2329
2330        /* Fast path completion. */
2331        if (comp_status == CS_COMPLETE && scsi_status == 0) {
2332                qla2x00_process_completed_request(vha, req, handle);
2333                return;
2334        }
2335
2336        req->outstanding_cmds[handle] = NULL;
2337        cp = GET_CMD_SP(sp);
2338        if (cp == NULL) {
2339                ql_dbg(ql_dbg_io, vha, 0x3048,
2340                    "Command already returned (0x%x/%p).\n",
2341                    handle, sp);
2342
2343                return;
2344        }
2345
2346        lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2347
2348        fcport = sp->fcport;
2349
2350        sense_len = par_sense_len = rsp_info_len = resid_len =
2351                fw_resid_len = 0;
2352        if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
2353                sense_len = sts->sense_len;
2354        if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2355            | (uint16_t)SS_RESIDUAL_OVER)))
2356                resid_len = le32_to_cpu(sts->residual_len);
2357        if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2358                fw_resid_len = le32_to_cpu(sts->residual_len);
2359        rsp_info = sense_data = sts->data;
2360        par_sense_len = sizeof(sts->data);
2361
2362        /* Check for overrun. */
2363        if (comp_status == CS_COMPLETE &&
2364            scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
2365                comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2366
2367        /*
2368         * Based on Host and scsi status generate status code for Linux
2369         */
2370        switch (le16_to_cpu(comp_status)) {
2371        case CS_COMPLETE:
2372        case CS_QUEUE_FULL:
2373                if (scsi_status == 0) {
2374                        res = DID_OK << 16;
2375                        break;
2376                }
2377                if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
2378                    | (uint16_t)SS_RESIDUAL_OVER))) {
2379                        resid = resid_len;
2380                        scsi_set_resid(cp, resid);
2381
2382                        if (!lscsi_status &&
2383                            ((unsigned)(scsi_bufflen(cp) - resid) <
2384                             cp->underflow)) {
2385                                ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2386                                    "Mid-layer underflow "
2387                                    "detected (0x%x of 0x%x bytes).\n",
2388                                    resid, scsi_bufflen(cp));
2389
2390                                res = DID_ERROR << 16;
2391                                break;
2392                        }
2393                }
2394                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2395
2396                if (lscsi_status ==
2397                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2398                        ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2399                            "QUEUE FULL detected.\n");
2400                        break;
2401                }
2402                logit = 0;
2403                if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2404                        break;
2405
2406                memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2407                if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2408                        break;
2409
2410                qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2411                    rsp, res);
2412                break;
2413
2414        case CS_DATA_UNDERRUN:
2415                /* Use F/W calculated residual length. */
2416                if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2417                        resid = fw_resid_len;
2418                else
2419                        resid = resid_len;
2420                scsi_set_resid(cp, resid);
2421                if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2422                        if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2423                            && fw_resid_len != resid_len) {
2424                                ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2425                                    "Dropped frame(s) detected "
2426                                    "(0x%x of 0x%x bytes).\n",
2427                                    resid, scsi_bufflen(cp));
2428
2429                                res = DID_ERROR << 16 |
2430                                    le16_to_cpu(lscsi_status);
2431                                goto check_scsi_status;
2432                        }
2433
2434                        if (!lscsi_status &&
2435                            ((unsigned)(scsi_bufflen(cp) - resid) <
2436                            cp->underflow)) {
2437                                ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2438                                    "Mid-layer underflow "
2439                                    "detected (0x%x of 0x%x bytes, "
2440                                    "cp->underflow: 0x%x).\n",
2441                                    resid, scsi_bufflen(cp), cp->underflow);
2442
2443                                res = DID_ERROR << 16;
2444                                break;
2445                        }
2446                } else if (lscsi_status !=
2447                    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
2448                    lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2449                        /*
2450                         * scsi status of task set and busy are considered
2451                         * to be task not completed.
2452                         */
2453
2454                        ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2455                            "Dropped frame(s) detected (0x%x "
2456                            "of 0x%x bytes).\n", resid,
2457                            scsi_bufflen(cp));
2458
2459                        res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2460                        goto check_scsi_status;
2461                } else {
2462                        ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2463                            "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2464                            scsi_status, lscsi_status);
2465                }
2466
2467                res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2468                logit = 0;
2469
2470check_scsi_status:
2471                /*
2472                 * Check to see if SCSI Status is non zero. If so report SCSI
2473                 * Status.
2474                 */
2475                if (lscsi_status != 0) {
2476                        if (lscsi_status ==
2477                            cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2478                                ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2479                                    "QUEUE FULL detected.\n");
2480                                logit = 1;
2481                                break;
2482                        }
2483                        if (lscsi_status !=
2484                            cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2485                                break;
2486
2487                        memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2488                        if (!(scsi_status &
2489                            cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2490                                break;
2491
2492                        qlafx00_handle_sense(sp, sense_data, par_sense_len,
2493                            sense_len, rsp, res);
2494                }
2495                break;
2496
2497        case CS_PORT_LOGGED_OUT:
2498        case CS_PORT_CONFIG_CHG:
2499        case CS_PORT_BUSY:
2500        case CS_INCOMPLETE:
2501        case CS_PORT_UNAVAILABLE:
2502        case CS_TIMEOUT:
2503        case CS_RESET:
2504
2505                /*
2506                 * We are going to have the fc class block the rport
2507                 * while we try to recover so instruct the mid layer
2508                 * to requeue until the class decides how to handle this.
2509                 */
2510                res = DID_TRANSPORT_DISRUPTED << 16;
2511
2512                ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2513                    "Port down status: port-state=0x%x.\n",
2514                    atomic_read(&fcport->state));
2515
2516                if (atomic_read(&fcport->state) == FCS_ONLINE)
2517                        qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2518                break;
2519
2520        case CS_ABORTED:
2521                res = DID_RESET << 16;
2522                break;
2523
2524        default:
2525                res = DID_ERROR << 16;
2526                break;
2527        }
2528
2529        if (logit)
2530                ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2531                    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2532                    "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
2533                    "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
2534                    "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2535                    comp_status, scsi_status, res, vha->host_no,
2536                    cp->device->id, cp->device->lun, fcport->tgt_id,
2537                    lscsi_status, cp->cmnd, scsi_bufflen(cp),
2538                    rsp_info, resid_len, fw_resid_len, sense_len,
2539                    par_sense_len, rsp_info_len);
2540
2541        if (rsp->status_srb == NULL)
2542                sp->done(sp, res);
2543}
2544
2545/**
2546 * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2547 * @rsp: response queue
2548 * @pkt: Entry pointer
2549 *
2550 * Extended sense data.
2551 */
2552static void
2553qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2554{
2555        uint8_t sense_sz = 0;
2556        struct qla_hw_data *ha = rsp->hw;
2557        struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2558        srb_t *sp = rsp->status_srb;
2559        struct scsi_cmnd *cp;
2560        uint32_t sense_len;
2561        uint8_t *sense_ptr;
2562
2563        if (!sp) {
2564                ql_dbg(ql_dbg_io, vha, 0x3037,
2565                    "no SP, sp = %p\n", sp);
2566                return;
2567        }
2568
2569        if (!GET_FW_SENSE_LEN(sp)) {
2570                ql_dbg(ql_dbg_io, vha, 0x304b,
2571                    "no fw sense data, sp = %p\n", sp);
2572                return;
2573        }
2574        cp = GET_CMD_SP(sp);
2575        if (cp == NULL) {
2576                ql_log(ql_log_warn, vha, 0x303b,
2577                    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2578
2579                rsp->status_srb = NULL;
2580                return;
2581        }
2582
2583        if (!GET_CMD_SENSE_LEN(sp)) {
2584                ql_dbg(ql_dbg_io, vha, 0x304c,
2585                    "no sense data, sp = %p\n", sp);
2586        } else {
2587                sense_len = GET_CMD_SENSE_LEN(sp);
2588                sense_ptr = GET_CMD_SENSE_PTR(sp);
2589                ql_dbg(ql_dbg_io, vha, 0x304f,
2590                    "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2591                    sp, sense_len, sense_ptr);
2592
2593                if (sense_len > sizeof(pkt->data))
2594                        sense_sz = sizeof(pkt->data);
2595                else
2596                        sense_sz = sense_len;
2597
2598                /* Move sense data. */
2599                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2600                    (uint8_t *)pkt, sizeof(sts_cont_entry_t));
2601                memcpy(sense_ptr, pkt->data, sense_sz);
2602                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2603                    sense_ptr, sense_sz);
2604
2605                sense_len -= sense_sz;
2606                sense_ptr += sense_sz;
2607
2608                SET_CMD_SENSE_PTR(sp, sense_ptr);
2609                SET_CMD_SENSE_LEN(sp, sense_len);
2610        }
2611        sense_len = GET_FW_SENSE_LEN(sp);
2612        sense_len = (sense_len > sizeof(pkt->data)) ?
2613            (sense_len - sizeof(pkt->data)) : 0;
2614        SET_FW_SENSE_LEN(sp, sense_len);
2615
2616        /* Place command on done queue. */
2617        if (sense_len == 0) {
2618                rsp->status_srb = NULL;
2619                sp->done(sp, cp->result);
2620        }
2621}
2622
2623/**
2624 * qlafx00_multistatus_entry() - Process Multi response queue entries.
2625 * @vha: SCSI driver HA context
2626 * @rsp: response queue
2627 * @pkt: received packet
2628 */
2629static void
2630qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2631        struct rsp_que *rsp, void *pkt)
2632{
2633        srb_t           *sp;
2634        struct multi_sts_entry_fx00 *stsmfx;
2635        struct qla_hw_data *ha = vha->hw;
2636        uint32_t handle, hindex, handle_count, i;
2637        uint16_t que;
2638        struct req_que *req;
2639        __le32 *handle_ptr;
2640
2641        stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2642
2643        handle_count = stsmfx->handle_count;
2644
2645        if (handle_count > MAX_HANDLE_COUNT) {
2646                ql_dbg(ql_dbg_io, vha, 0x3035,
2647                    "Invalid handle count (0x%x).\n", handle_count);
2648                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2649                qla2xxx_wake_dpc(vha);
2650                return;
2651        }
2652
2653        handle_ptr =  &stsmfx->handles[0];
2654
2655        for (i = 0; i < handle_count; i++) {
2656                hindex = le32_to_cpu(*handle_ptr);
2657                handle = LSW(hindex);
2658                que = MSW(hindex);
2659                req = ha->req_q_map[que];
2660
2661                /* Validate handle. */
2662                if (handle < req->num_outstanding_cmds)
2663                        sp = req->outstanding_cmds[handle];
2664                else
2665                        sp = NULL;
2666
2667                if (sp == NULL) {
2668                        ql_dbg(ql_dbg_io, vha, 0x3044,
2669                            "Invalid status handle (0x%x).\n", handle);
2670                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2671                        qla2xxx_wake_dpc(vha);
2672                        return;
2673                }
2674                qla2x00_process_completed_request(vha, req, handle);
2675                handle_ptr++;
2676        }
2677}
2678
2679/**
2680 * qlafx00_error_entry() - Process an error entry.
2681 * @vha: SCSI driver HA context
2682 * @rsp: response queue
2683 * @pkt: Entry pointer
2684 */
2685static void
2686qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2687                    struct sts_entry_fx00 *pkt)
2688{
2689        srb_t *sp;
2690        struct qla_hw_data *ha = vha->hw;
2691        const char func[] = "ERROR-IOCB";
2692        uint16_t que = 0;
2693        struct req_que *req = NULL;
2694        int res = DID_ERROR << 16;
2695
2696        req = ha->req_q_map[que];
2697
2698        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2699        if (sp) {
2700                sp->done(sp, res);
2701                return;
2702        }
2703
2704        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2705        qla2xxx_wake_dpc(vha);
2706}
2707
2708/**
2709 * qlafx00_process_response_queue() - Process response queue entries.
2710 * @vha: SCSI driver HA context
2711 * @rsp: response queue
2712 */
2713static void
2714qlafx00_process_response_queue(struct scsi_qla_host *vha,
2715        struct rsp_que *rsp)
2716{
2717        struct sts_entry_fx00 *pkt;
2718        response_t *lptr;
2719        uint16_t lreq_q_in = 0;
2720        uint16_t lreq_q_out = 0;
2721
2722        lreq_q_in = RD_REG_DWORD(rsp->rsp_q_in);
2723        lreq_q_out = rsp->ring_index;
2724
2725        while (lreq_q_in != lreq_q_out) {
2726                lptr = rsp->ring_ptr;
2727                memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
2728                    sizeof(rsp->rsp_pkt));
2729                pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2730
2731                rsp->ring_index++;
2732                lreq_q_out++;
2733                if (rsp->ring_index == rsp->length) {
2734                        lreq_q_out = 0;
2735                        rsp->ring_index = 0;
2736                        rsp->ring_ptr = rsp->ring;
2737                } else {
2738                        rsp->ring_ptr++;
2739                }
2740
2741                if (pkt->entry_status != 0 &&
2742                    pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2743                        ql_dbg(ql_dbg_async, vha, 0x507f,
2744                               "type of error status in response: 0x%x\n",
2745                               pkt->entry_status);
2746                        qlafx00_error_entry(vha, rsp,
2747                                            (struct sts_entry_fx00 *)pkt);
2748                        continue;
2749                }
2750
2751                switch (pkt->entry_type) {
2752                case STATUS_TYPE_FX00:
2753                        qlafx00_status_entry(vha, rsp, pkt);
2754                        break;
2755
2756                case STATUS_CONT_TYPE_FX00:
2757                        qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2758                        break;
2759
2760                case MULTI_STATUS_TYPE_FX00:
2761                        qlafx00_multistatus_entry(vha, rsp, pkt);
2762                        break;
2763
2764                case ABORT_IOCB_TYPE_FX00:
2765                        qlafx00_abort_iocb_entry(vha, rsp->req,
2766                           (struct abort_iocb_entry_fx00 *)pkt);
2767                        break;
2768
2769                case IOCTL_IOSB_TYPE_FX00:
2770                        qlafx00_ioctl_iosb_entry(vha, rsp->req,
2771                            (struct ioctl_iocb_entry_fx00 *)pkt);
2772                        break;
2773                default:
2774                        /* Type Not Supported. */
2775                        ql_dbg(ql_dbg_async, vha, 0x5081,
2776                            "Received unknown response pkt type %x "
2777                            "entry status=%x.\n",
2778                            pkt->entry_type, pkt->entry_status);
2779                        break;
2780                }
2781        }
2782
2783        /* Adjust ring index */
2784        WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2785}
2786
2787/**
2788 * qlafx00_async_event() - Process aynchronous events.
2789 * @vha: SCSI driver HA context
2790 */
2791static void
2792qlafx00_async_event(scsi_qla_host_t *vha)
2793{
2794        struct qla_hw_data *ha = vha->hw;
2795        struct device_reg_fx00 __iomem *reg;
2796        int data_size = 1;
2797
2798        reg = &ha->iobase->ispfx00;
2799        /* Setup to process RIO completion. */
2800        switch (ha->aenmb[0]) {
2801        case QLAFX00_MBA_SYSTEM_ERR:            /* System Error */
2802                ql_log(ql_log_warn, vha, 0x5079,
2803                    "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2804                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2805                break;
2806
2807        case QLAFX00_MBA_SHUTDOWN_RQSTD:        /* Shutdown requested */
2808                ql_dbg(ql_dbg_async, vha, 0x5076,
2809                    "Asynchronous FW shutdown requested.\n");
2810                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2811                qla2xxx_wake_dpc(vha);
2812                break;
2813
2814        case QLAFX00_MBA_PORT_UPDATE:           /* Port database update */
2815                ha->aenmb[1] = RD_REG_DWORD(&reg->aenmailbox1);
2816                ha->aenmb[2] = RD_REG_DWORD(&reg->aenmailbox2);
2817                ha->aenmb[3] = RD_REG_DWORD(&reg->aenmailbox3);
2818                ql_dbg(ql_dbg_async, vha, 0x5077,
2819                    "Asynchronous port Update received "
2820                    "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2821                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2822                data_size = 4;
2823                break;
2824
2825        case QLAFX00_MBA_TEMP_OVER:     /* Over temperature event */
2826                ql_log(ql_log_info, vha, 0x5085,
2827                    "Asynchronous over temperature event received "
2828                    "aenmb[0]: %x\n",
2829                    ha->aenmb[0]);
2830                break;
2831
2832        case QLAFX00_MBA_TEMP_NORM:     /* Normal temperature event */
2833                ql_log(ql_log_info, vha, 0x5086,
2834                    "Asynchronous normal temperature event received "
2835                    "aenmb[0]: %x\n",
2836                    ha->aenmb[0]);
2837                break;
2838
2839        case QLAFX00_MBA_TEMP_CRIT:     /* Critical temperature event */
2840                ql_log(ql_log_info, vha, 0x5083,
2841                    "Asynchronous critical temperature event received "
2842                    "aenmb[0]: %x\n",
2843                ha->aenmb[0]);
2844                break;
2845
2846        default:
2847                ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
2848                ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
2849                ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
2850                ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
2851                ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
2852                ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
2853                ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
2854                ql_dbg(ql_dbg_async, vha, 0x5078,
2855                    "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2856                    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2857                    ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2858                break;
2859        }
2860        qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2861            (uint32_t *)ha->aenmb, data_size);
2862}
2863
2864/**
2865 * qlafx00x_mbx_completion() - Process mailbox command completions.
2866 * @vha: SCSI driver HA context
2867 * @mb0: value to be written into mailbox register 0
2868 */
2869static void
2870qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2871{
2872        uint16_t        cnt;
2873        uint32_t __iomem *wptr;
2874        struct qla_hw_data *ha = vha->hw;
2875        struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2876
2877        if (!ha->mcp32)
2878                ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2879
2880        /* Load return mailbox registers. */
2881        ha->flags.mbox_int = 1;
2882        ha->mailbox_out32[0] = mb0;
2883        wptr = (uint32_t __iomem *)&reg->mailbox17;
2884
2885        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2886                ha->mailbox_out32[cnt] = RD_REG_DWORD(wptr);
2887                wptr++;
2888        }
2889}
2890
2891/**
2892 * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2893 * @irq: interrupt number
2894 * @dev_id: SCSI driver HA context
2895 *
2896 * Called by system whenever the host adapter generates an interrupt.
2897 *
2898 * Returns handled flag.
2899 */
2900irqreturn_t
2901qlafx00_intr_handler(int irq, void *dev_id)
2902{
2903        scsi_qla_host_t *vha;
2904        struct qla_hw_data *ha;
2905        struct device_reg_fx00 __iomem *reg;
2906        int             status;
2907        unsigned long   iter;
2908        uint32_t        stat;
2909        uint32_t        mb[8];
2910        struct rsp_que *rsp;
2911        unsigned long   flags;
2912        uint32_t clr_intr = 0;
2913        uint32_t intr_stat = 0;
2914
2915        rsp = (struct rsp_que *) dev_id;
2916        if (!rsp) {
2917                ql_log(ql_log_info, NULL, 0x507d,
2918                    "%s: NULL response queue pointer.\n", __func__);
2919                return IRQ_NONE;
2920        }
2921
2922        ha = rsp->hw;
2923        reg = &ha->iobase->ispfx00;
2924        status = 0;
2925
2926        if (unlikely(pci_channel_offline(ha->pdev)))
2927                return IRQ_HANDLED;
2928
2929        spin_lock_irqsave(&ha->hardware_lock, flags);
2930        vha = pci_get_drvdata(ha->pdev);
2931        for (iter = 50; iter--; clr_intr = 0) {
2932                stat = QLAFX00_RD_INTR_REG(ha);
2933                if (qla2x00_check_reg32_for_disconnect(vha, stat))
2934                        break;
2935                intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
2936                if (!intr_stat)
2937                        break;
2938
2939                if (stat & QLAFX00_INTR_MB_CMPLT) {
2940                        mb[0] = RD_REG_WORD(&reg->mailbox16);
2941                        qlafx00_mbx_completion(vha, mb[0]);
2942                        status |= MBX_INTERRUPT;
2943                        clr_intr |= QLAFX00_INTR_MB_CMPLT;
2944                }
2945                if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
2946                        ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
2947                        qlafx00_async_event(vha);
2948                        clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2949                }
2950                if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
2951                        qlafx00_process_response_queue(vha, rsp);
2952                        clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2953                }
2954
2955                QLAFX00_CLR_INTR_REG(ha, clr_intr);
2956                QLAFX00_RD_INTR_REG(ha);
2957        }
2958
2959        qla2x00_handle_mbx_completion(ha, status);
2960        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2961
2962        return IRQ_HANDLED;
2963}
2964
2965/** QLAFX00 specific IOCB implementation functions */
2966
2967static inline cont_a64_entry_t *
2968qlafx00_prep_cont_type1_iocb(struct req_que *req,
2969                             cont_a64_entry_t *lcont_pkt)
2970{
2971        cont_a64_entry_t *cont_pkt;
2972
2973        /* Adjust ring index. */
2974        req->ring_index++;
2975        if (req->ring_index == req->length) {
2976                req->ring_index = 0;
2977                req->ring_ptr = req->ring;
2978        } else {
2979                req->ring_ptr++;
2980        }
2981
2982        cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2983
2984        /* Load packet defaults. */
2985        lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
2986
2987        return cont_pkt;
2988}
2989
2990static inline void
2991qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2992                         uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2993{
2994        uint16_t        avail_dsds;
2995        __le32 *cur_dsd;
2996        scsi_qla_host_t *vha;
2997        struct scsi_cmnd *cmd;
2998        struct scatterlist *sg;
2999        int i, cont;
3000        struct req_que *req;
3001        cont_a64_entry_t lcont_pkt;
3002        cont_a64_entry_t *cont_pkt;
3003
3004        vha = sp->vha;
3005        req = vha->req;
3006
3007        cmd = GET_CMD_SP(sp);
3008        cont = 0;
3009        cont_pkt = NULL;
3010
3011        /* Update entry type to indicate Command Type 3 IOCB */
3012        lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3013
3014        /* No data transfer */
3015        if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
3016                lcmd_pkt->byte_count = cpu_to_le32(0);
3017                return;
3018        }
3019
3020        /* Set transfer direction */
3021        if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3022                lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3023                vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3024        } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3025                lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3026                vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3027        }
3028
3029        /* One DSD is available in the Command Type 3 IOCB */
3030        avail_dsds = 1;
3031        cur_dsd = (__le32 *)&lcmd_pkt->dseg_0_address;
3032
3033        /* Load data segments */
3034        scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3035                dma_addr_t      sle_dma;
3036
3037                /* Allocate additional continuation packets? */
3038                if (avail_dsds == 0) {
3039                        /*
3040                         * Five DSDs are available in the Continuation
3041                         * Type 1 IOCB.
3042                         */
3043                        memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3044                        cont_pkt =
3045                            qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3046                        cur_dsd = (__le32 *)lcont_pkt.dseg_0_address;
3047                        avail_dsds = 5;
3048                        cont = 1;
3049                }
3050
3051                sle_dma = sg_dma_address(sg);
3052                *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3053                *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3054                *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3055                avail_dsds--;
3056                if (avail_dsds == 0 && cont == 1) {
3057                        cont = 0;
3058                        memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3059                            REQUEST_ENTRY_SIZE);
3060                }
3061
3062        }
3063        if (avail_dsds != 0 && cont == 1) {
3064                memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3065                    REQUEST_ENTRY_SIZE);
3066        }
3067}
3068
3069/**
3070 * qlafx00_start_scsi() - Send a SCSI command to the ISP
3071 * @sp: command to send to the ISP
3072 *
3073 * Returns non-zero if a failure occurred, else zero.
3074 */
3075int
3076qlafx00_start_scsi(srb_t *sp)
3077{
3078        int             nseg;
3079        unsigned long   flags;
3080        uint32_t        index;
3081        uint32_t        handle;
3082        uint16_t        cnt;
3083        uint16_t        req_cnt;
3084        uint16_t        tot_dsds;
3085        struct req_que *req = NULL;
3086        struct rsp_que *rsp = NULL;
3087        struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3088        struct scsi_qla_host *vha = sp->vha;
3089        struct qla_hw_data *ha = vha->hw;
3090        struct cmd_type_7_fx00 *cmd_pkt;
3091        struct cmd_type_7_fx00 lcmd_pkt;
3092        struct scsi_lun llun;
3093
3094        /* Setup device pointers. */
3095        rsp = ha->rsp_q_map[0];
3096        req = vha->req;
3097
3098        /* So we know we haven't pci_map'ed anything yet */
3099        tot_dsds = 0;
3100
3101        /* Acquire ring specific lock */
3102        spin_lock_irqsave(&ha->hardware_lock, flags);
3103
3104        /* Check for room in outstanding command list. */
3105        handle = req->current_outstanding_cmd;
3106        for (index = 1; index < req->num_outstanding_cmds; index++) {
3107                handle++;
3108                if (handle == req->num_outstanding_cmds)
3109                        handle = 1;
3110                if (!req->outstanding_cmds[handle])
3111                        break;
3112        }
3113        if (index == req->num_outstanding_cmds)
3114                goto queuing_error;
3115
3116        /* Map the sg table so we have an accurate count of sg entries needed */
3117        if (scsi_sg_count(cmd)) {
3118                nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3119                    scsi_sg_count(cmd), cmd->sc_data_direction);
3120                if (unlikely(!nseg))
3121                        goto queuing_error;
3122        } else
3123                nseg = 0;
3124
3125        tot_dsds = nseg;
3126        req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3127        if (req->cnt < (req_cnt + 2)) {
3128                cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3129
3130                if (req->ring_index < cnt)
3131                        req->cnt = cnt - req->ring_index;
3132                else
3133                        req->cnt = req->length -
3134                                (req->ring_index - cnt);
3135                if (req->cnt < (req_cnt + 2))
3136                        goto queuing_error;
3137        }
3138
3139        /* Build command packet. */
3140        req->current_outstanding_cmd = handle;
3141        req->outstanding_cmds[handle] = sp;
3142        sp->handle = handle;
3143        cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3144        req->cnt -= req_cnt;
3145
3146        cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3147
3148        memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3149
3150        lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3151        lcmd_pkt.reserved_0 = 0;
3152        lcmd_pkt.port_path_ctrl = 0;
3153        lcmd_pkt.reserved_1 = 0;
3154        lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3155        lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3156
3157        int_to_scsilun(cmd->device->lun, &llun);
3158        host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3159            sizeof(lcmd_pkt.lun));
3160
3161        /* Load SCSI command packet. */
3162        host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3163        lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3164
3165        /* Build IOCB segments */
3166        qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3167
3168        /* Set total data segment count. */
3169        lcmd_pkt.entry_count = (uint8_t)req_cnt;
3170
3171        /* Specify response queue number where completion should happen */
3172        lcmd_pkt.entry_status = (uint8_t) rsp->id;
3173
3174        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3175            (uint8_t *)cmd->cmnd, cmd->cmd_len);
3176        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3177            (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);
3178
3179        memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3180        wmb();
3181
3182        /* Adjust ring index. */
3183        req->ring_index++;
3184        if (req->ring_index == req->length) {
3185                req->ring_index = 0;
3186                req->ring_ptr = req->ring;
3187        } else
3188                req->ring_ptr++;
3189
3190        sp->flags |= SRB_DMA_VALID;
3191
3192        /* Set chip new ring index. */
3193        WRT_REG_DWORD(req->req_q_in, req->ring_index);
3194        QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3195
3196        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3197        return QLA_SUCCESS;
3198
3199queuing_error:
3200        if (tot_dsds)
3201                scsi_dma_unmap(cmd);
3202
3203        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3204
3205        return QLA_FUNCTION_FAILED;
3206}
3207
3208void
3209qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3210{
3211        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3212        scsi_qla_host_t *vha = sp->vha;
3213        struct req_que *req = vha->req;
3214        struct tsk_mgmt_entry_fx00 tm_iocb;
3215        struct scsi_lun llun;
3216
3217        memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3218        tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3219        tm_iocb.entry_count = 1;
3220        tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3221        tm_iocb.reserved_0 = 0;
3222        tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3223        tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3224        if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3225                int_to_scsilun(fxio->u.tmf.lun, &llun);
3226                host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3227                    sizeof(struct scsi_lun));
3228        }
3229
3230        memcpy((void *)ptm_iocb, &tm_iocb,
3231            sizeof(struct tsk_mgmt_entry_fx00));
3232        wmb();
3233}
3234
3235void
3236qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3237{
3238        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3239        scsi_qla_host_t *vha = sp->vha;
3240        struct req_que *req = vha->req;
3241        struct abort_iocb_entry_fx00 abt_iocb;
3242
3243        memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3244        abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3245        abt_iocb.entry_count = 1;
3246        abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3247        abt_iocb.abort_handle =
3248            cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3249        abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3250        abt_iocb.req_que_no = cpu_to_le16(req->id);
3251
3252        memcpy((void *)pabt_iocb, &abt_iocb,
3253            sizeof(struct abort_iocb_entry_fx00));
3254        wmb();
3255}
3256
3257void
3258qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3259{
3260        struct srb_iocb *fxio = &sp->u.iocb_cmd;
3261        struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3262        struct bsg_job *bsg_job;
3263        struct fc_bsg_request *bsg_request;
3264        struct fxdisc_entry_fx00 fx_iocb;
3265        uint8_t entry_cnt = 1;
3266
3267        memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3268        fx_iocb.entry_type = FX00_IOCB_TYPE;
3269        fx_iocb.handle = cpu_to_le32(sp->handle);
3270        fx_iocb.entry_count = entry_cnt;
3271
3272        if (sp->type == SRB_FXIOCB_DCMD) {
3273                fx_iocb.func_num =
3274                    sp->u.iocb_cmd.u.fxiocb.req_func_type;
3275                fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
3276                fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
3277                fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
3278                fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
3279                fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3280
3281                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3282                        fx_iocb.req_dsdcnt = cpu_to_le16(1);
3283                        fx_iocb.req_xfrcnt =
3284                            cpu_to_le16(fxio->u.fxiocb.req_len);
3285                        fx_iocb.dseg_rq_address[0] =
3286                            cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
3287                        fx_iocb.dseg_rq_address[1] =
3288                            cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
3289                        fx_iocb.dseg_rq_len =
3290                            cpu_to_le32(fxio->u.fxiocb.req_len);
3291                }
3292
3293                if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3294                        fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3295                        fx_iocb.rsp_xfrcnt =
3296                            cpu_to_le16(fxio->u.fxiocb.rsp_len);
3297                        fx_iocb.dseg_rsp_address[0] =
3298                            cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
3299                        fx_iocb.dseg_rsp_address[1] =
3300                            cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
3301                        fx_iocb.dseg_rsp_len =
3302                            cpu_to_le32(fxio->u.fxiocb.rsp_len);
3303                }
3304
3305                if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3306                        fx_iocb.dataword = fxio->u.fxiocb.req_data;
3307                }
3308                fx_iocb.flags = fxio->u.fxiocb.flags;
3309        } else {
3310                struct scatterlist *sg;
3311                bsg_job = sp->u.bsg_job;
3312                bsg_request = bsg_job->request;
3313                piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3314                        &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3315
3316                fx_iocb.func_num = piocb_rqst->func_type;
3317                fx_iocb.adapid = piocb_rqst->adapid;
3318                fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3319                fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3320                fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3321                fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3322                fx_iocb.dataword = piocb_rqst->dataword;
3323                fx_iocb.req_xfrcnt = piocb_rqst->req_len;
3324                fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3325
3326                if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3327                        int avail_dsds, tot_dsds;
3328                        cont_a64_entry_t lcont_pkt;
3329                        cont_a64_entry_t *cont_pkt = NULL;
3330                        __le32 *cur_dsd;
3331                        int index = 0, cont = 0;
3332
3333                        fx_iocb.req_dsdcnt =
3334                            cpu_to_le16(bsg_job->request_payload.sg_cnt);
3335                        tot_dsds =
3336                            bsg_job->request_payload.sg_cnt;
3337                        cur_dsd = (__le32 *)&fx_iocb.dseg_rq_address[0];
3338                        avail_dsds = 1;
3339                        for_each_sg(bsg_job->request_payload.sg_list, sg,
3340                            tot_dsds, index) {
3341                                dma_addr_t sle_dma;
3342
3343                                /* Allocate additional continuation packets? */
3344                                if (avail_dsds == 0) {
3345                                        /*
3346                                         * Five DSDs are available in the Cont.
3347                                         * Type 1 IOCB.
3348                                         */
3349                                        memset(&lcont_pkt, 0,
3350                                            REQUEST_ENTRY_SIZE);
3351                                        cont_pkt =
3352                                            qlafx00_prep_cont_type1_iocb(
3353                                                sp->vha->req, &lcont_pkt);
3354                                        cur_dsd = (__le32 *)
3355                                            lcont_pkt.dseg_0_address;
3356                                        avail_dsds = 5;
3357                                        cont = 1;
3358                                        entry_cnt++;
3359                                }
3360
3361                                sle_dma = sg_dma_address(sg);
3362                                *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3363                                *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3364                                *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3365                                avail_dsds--;
3366
3367                                if (avail_dsds == 0 && cont == 1) {
3368                                        cont = 0;
3369                                        memcpy_toio(
3370                                            (void __iomem *)cont_pkt,
3371                                            &lcont_pkt, REQUEST_ENTRY_SIZE);
3372                                        ql_dump_buffer(
3373                                            ql_dbg_user + ql_dbg_verbose,
3374                                            sp->vha, 0x3042,
3375                                            (uint8_t *)&lcont_pkt,
3376                                             REQUEST_ENTRY_SIZE);
3377                                }
3378                        }
3379                        if (avail_dsds != 0 && cont == 1) {
3380                                memcpy_toio((void __iomem *)cont_pkt,
3381                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3382                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3383                                    sp->vha, 0x3043,
3384                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3385                        }
3386                }
3387
3388                if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3389                        int avail_dsds, tot_dsds;
3390                        cont_a64_entry_t lcont_pkt;
3391                        cont_a64_entry_t *cont_pkt = NULL;
3392                        __le32 *cur_dsd;
3393                        int index = 0, cont = 0;
3394
3395                        fx_iocb.rsp_dsdcnt =
3396                           cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3397                        tot_dsds = bsg_job->reply_payload.sg_cnt;
3398                        cur_dsd = (__le32 *)&fx_iocb.dseg_rsp_address[0];
3399                        avail_dsds = 1;
3400
3401                        for_each_sg(bsg_job->reply_payload.sg_list, sg,
3402                            tot_dsds, index) {
3403                                dma_addr_t sle_dma;
3404
3405                                /* Allocate additional continuation packets? */
3406                                if (avail_dsds == 0) {
3407                                        /*
3408                                        * Five DSDs are available in the Cont.
3409                                        * Type 1 IOCB.
3410                                        */
3411                                        memset(&lcont_pkt, 0,
3412                                            REQUEST_ENTRY_SIZE);
3413                                        cont_pkt =
3414                                            qlafx00_prep_cont_type1_iocb(
3415                                                sp->vha->req, &lcont_pkt);
3416                                        cur_dsd = (__le32 *)
3417                                            lcont_pkt.dseg_0_address;
3418                                        avail_dsds = 5;
3419                                        cont = 1;
3420                                        entry_cnt++;
3421                                }
3422
3423                                sle_dma = sg_dma_address(sg);
3424                                *cur_dsd++   = cpu_to_le32(LSD(sle_dma));
3425                                *cur_dsd++   = cpu_to_le32(MSD(sle_dma));
3426                                *cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
3427                                avail_dsds--;
3428
3429                                if (avail_dsds == 0 && cont == 1) {
3430                                        cont = 0;
3431                                        memcpy_toio((void __iomem *)cont_pkt,
3432                                            &lcont_pkt,
3433                                            REQUEST_ENTRY_SIZE);
3434                                        ql_dump_buffer(
3435                                            ql_dbg_user + ql_dbg_verbose,
3436                                            sp->vha, 0x3045,
3437                                            (uint8_t *)&lcont_pkt,
3438                                            REQUEST_ENTRY_SIZE);
3439                                }
3440                        }
3441                        if (avail_dsds != 0 && cont == 1) {
3442                                memcpy_toio((void __iomem *)cont_pkt,
3443                                    &lcont_pkt, REQUEST_ENTRY_SIZE);
3444                                ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3445                                    sp->vha, 0x3046,
3446                                    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3447                        }
3448                }
3449
3450                if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3451                        fx_iocb.dataword = piocb_rqst->dataword;
3452                fx_iocb.flags = piocb_rqst->flags;
3453                fx_iocb.entry_count = entry_cnt;
3454        }
3455
3456        ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3457            sp->vha, 0x3047,
3458            (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));
3459
3460        memcpy_toio((void __iomem *)pfxiocb, &fx_iocb,
3461            sizeof(struct fxdisc_entry_fx00));
3462        wmb();
3463}
3464