linux/drivers/scsi/qla2xxx/qla_os.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2011 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8
   9#include <linux/moduleparam.h>
  10#include <linux/vmalloc.h>
  11#include <linux/delay.h>
  12#include <linux/kthread.h>
  13#include <linux/mutex.h>
  14#include <linux/kobject.h>
  15#include <linux/slab.h>
  16
  17#include <scsi/scsi_tcq.h>
  18#include <scsi/scsicam.h>
  19#include <scsi/scsi_transport.h>
  20#include <scsi/scsi_transport_fc.h>
  21
  22/*
  23 * Driver version
  24 */
  25char qla2x00_version_str[40];
  26
  27static int apidev_major;
  28
  29/*
  30 * SRB allocation cache
  31 */
  32static struct kmem_cache *srb_cachep;
  33
  34/*
  35 * CT6 CTX allocation cache
  36 */
  37static struct kmem_cache *ctx_cachep;
  38/*
  39 * error level for logging
  40 */
  41int ql_errlev = ql_log_all;
  42
  43int ql2xlogintimeout = 20;
  44module_param(ql2xlogintimeout, int, S_IRUGO);
  45MODULE_PARM_DESC(ql2xlogintimeout,
  46                "Login timeout value in seconds.");
  47
  48int qlport_down_retry;
  49module_param(qlport_down_retry, int, S_IRUGO);
  50MODULE_PARM_DESC(qlport_down_retry,
  51                "Maximum number of command retries to a port that returns "
  52                "a PORT-DOWN status.");
  53
  54int ql2xplogiabsentdevice;
  55module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  56MODULE_PARM_DESC(ql2xplogiabsentdevice,
  57                "Option to enable PLOGI to devices that are not present after "
  58                "a Fabric scan.  This is needed for several broken switches. "
  59                "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  60
  61int ql2xloginretrycount = 0;
  62module_param(ql2xloginretrycount, int, S_IRUGO);
  63MODULE_PARM_DESC(ql2xloginretrycount,
  64                "Specify an alternate value for the NVRAM login retry count.");
  65
  66int ql2xallocfwdump = 1;
  67module_param(ql2xallocfwdump, int, S_IRUGO);
  68MODULE_PARM_DESC(ql2xallocfwdump,
  69                "Option to enable allocation of memory for a firmware dump "
  70                "during HBA initialization.  Memory allocation requirements "
  71                "vary by ISP type.  Default is 1 - allocate memory.");
  72
  73int ql2xextended_error_logging;
  74module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  75MODULE_PARM_DESC(ql2xextended_error_logging,
  76                "Option to enable extended error logging,\n"
  77                "\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
  78                "\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
  79                "\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
  80                "\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
  81                "\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
  82                "\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
  83                "\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
  84                "\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
  85                "\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
  86                "\t\tDo LOGICAL OR of the value to enable more than one level");
  87
  88int ql2xshiftctondsd = 6;
  89module_param(ql2xshiftctondsd, int, S_IRUGO);
  90MODULE_PARM_DESC(ql2xshiftctondsd,
  91                "Set to control shifting of command type processing "
  92                "based on total number of SG elements.");
  93
  94static void qla2x00_free_device(scsi_qla_host_t *);
  95
  96int ql2xfdmienable=1;
  97module_param(ql2xfdmienable, int, S_IRUGO);
  98MODULE_PARM_DESC(ql2xfdmienable,
  99                "Enables FDMI registrations. "
 100                "0 - no FDMI. Default is 1 - perform FDMI.");
 101
 102#define MAX_Q_DEPTH    32
 103static int ql2xmaxqdepth = MAX_Q_DEPTH;
 104module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
 105MODULE_PARM_DESC(ql2xmaxqdepth,
 106                "Maximum queue depth to report for target devices.");
 107
 108/* Do not change the value of this after module load */
 109int ql2xenabledif = 0;
 110module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
 111MODULE_PARM_DESC(ql2xenabledif,
 112                " Enable T10-CRC-DIF "
 113                " Default is 0 - No DIF Support. 1 - Enable it"
 114                ", 2 - Enable DIF for all types, except Type 0.");
 115
 116int ql2xenablehba_err_chk = 2;
 117module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 118MODULE_PARM_DESC(ql2xenablehba_err_chk,
 119                " Enable T10-CRC-DIF Error isolation by HBA:\n"
 120                " Default is 1.\n"
 121                "  0 -- Error isolation disabled\n"
 122                "  1 -- Error isolation enabled only for DIX Type 0\n"
 123                "  2 -- Error isolation enabled for all Types\n");
 124
 125int ql2xiidmaenable=1;
 126module_param(ql2xiidmaenable, int, S_IRUGO);
 127MODULE_PARM_DESC(ql2xiidmaenable,
 128                "Enables iIDMA settings "
 129                "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 130
 131int ql2xmaxqueues = 1;
 132module_param(ql2xmaxqueues, int, S_IRUGO);
 133MODULE_PARM_DESC(ql2xmaxqueues,
 134                "Enables MQ settings "
 135                "Default is 1 for single queue. Set it to number "
 136                "of queues in MQ mode.");
 137
 138int ql2xmultique_tag;
 139module_param(ql2xmultique_tag, int, S_IRUGO);
 140MODULE_PARM_DESC(ql2xmultique_tag,
 141                "Enables CPU affinity settings for the driver "
 142                "Default is 0 for no affinity of request and response IO. "
 143                "Set it to 1 to turn on the cpu affinity.");
 144
 145int ql2xfwloadbin;
 146module_param(ql2xfwloadbin, int, S_IRUGO);
 147MODULE_PARM_DESC(ql2xfwloadbin,
 148                "Option to specify location from which to load ISP firmware:.\n"
 149                " 2 -- load firmware via the request_firmware() (hotplug).\n"
 150                "      interface.\n"
 151                " 1 -- load firmware from flash.\n"
 152                " 0 -- use default semantics.\n");
 153
 154int ql2xetsenable;
 155module_param(ql2xetsenable, int, S_IRUGO);
 156MODULE_PARM_DESC(ql2xetsenable,
 157                "Enables firmware ETS burst."
 158                "Default is 0 - skip ETS enablement.");
 159
 160int ql2xdbwr = 1;
 161module_param(ql2xdbwr, int, S_IRUGO);
 162MODULE_PARM_DESC(ql2xdbwr,
 163        "Option to specify scheme for request queue posting.\n"
 164        " 0 -- Regular doorbell.\n"
 165        " 1 -- CAMRAM doorbell (faster).\n");
 166
 167int ql2xtargetreset = 1;
 168module_param(ql2xtargetreset, int, S_IRUGO);
 169MODULE_PARM_DESC(ql2xtargetreset,
 170                 "Enable target reset."
 171                 "Default is 1 - use hw defaults.");
 172
 173int ql2xgffidenable;
 174module_param(ql2xgffidenable, int, S_IRUGO);
 175MODULE_PARM_DESC(ql2xgffidenable,
 176                "Enables GFF_ID checks of port type. "
 177                "Default is 0 - Do not use GFF_ID information.");
 178
 179int ql2xasynctmfenable;
 180module_param(ql2xasynctmfenable, int, S_IRUGO);
 181MODULE_PARM_DESC(ql2xasynctmfenable,
 182                "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 183                "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 184
 185int ql2xdontresethba;
 186module_param(ql2xdontresethba, int, S_IRUGO);
 187MODULE_PARM_DESC(ql2xdontresethba,
 188        "Option to specify reset behaviour.\n"
 189        " 0 (Default) -- Reset on failure.\n"
 190        " 1 -- Do not reset on failure.\n");
 191
 192uint ql2xmaxlun = MAX_LUNS;
 193module_param(ql2xmaxlun, uint, S_IRUGO);
 194MODULE_PARM_DESC(ql2xmaxlun,
 195                "Defines the maximum LU number to register with the SCSI "
 196                "midlayer. Default is 65535.");
 197
 198/*
 199 * SCSI host template entry points
 200 */
 201static int qla2xxx_slave_configure(struct scsi_device * device);
 202static int qla2xxx_slave_alloc(struct scsi_device *);
 203static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 204static void qla2xxx_scan_start(struct Scsi_Host *);
 205static void qla2xxx_slave_destroy(struct scsi_device *);
 206static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 207static int qla2xxx_eh_abort(struct scsi_cmnd *);
 208static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 209static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 210static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 211static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 212
 213static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 214static int qla2x00_change_queue_type(struct scsi_device *, int);
 215
 216struct scsi_host_template qla2xxx_driver_template = {
 217        .module                 = THIS_MODULE,
 218        .name                   = QLA2XXX_DRIVER_NAME,
 219        .queuecommand           = qla2xxx_queuecommand,
 220
 221        .eh_abort_handler       = qla2xxx_eh_abort,
 222        .eh_device_reset_handler = qla2xxx_eh_device_reset,
 223        .eh_target_reset_handler = qla2xxx_eh_target_reset,
 224        .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 225        .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 226
 227        .slave_configure        = qla2xxx_slave_configure,
 228
 229        .slave_alloc            = qla2xxx_slave_alloc,
 230        .slave_destroy          = qla2xxx_slave_destroy,
 231        .scan_finished          = qla2xxx_scan_finished,
 232        .scan_start             = qla2xxx_scan_start,
 233        .change_queue_depth     = qla2x00_change_queue_depth,
 234        .change_queue_type      = qla2x00_change_queue_type,
 235        .this_id                = -1,
 236        .cmd_per_lun            = 3,
 237        .use_clustering         = ENABLE_CLUSTERING,
 238        .sg_tablesize           = SG_ALL,
 239
 240        .max_sectors            = 0xFFFF,
 241        .shost_attrs            = qla2x00_host_attrs,
 242};
 243
 244static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 245struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 246
 247/* TODO Convert to inlines
 248 *
 249 * Timer routines
 250 */
 251
 252__inline__ void
 253qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 254{
 255        init_timer(&vha->timer);
 256        vha->timer.expires = jiffies + interval * HZ;
 257        vha->timer.data = (unsigned long)vha;
 258        vha->timer.function = (void (*)(unsigned long))func;
 259        add_timer(&vha->timer);
 260        vha->timer_active = 1;
 261}
 262
 263static inline void
 264qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 265{
 266        /* Currently used for 82XX only. */
 267        if (vha->device_flags & DFLG_DEV_FAILED) {
 268                ql_dbg(ql_dbg_timer, vha, 0x600d,
 269                    "Device in a failed state, returning.\n");
 270                return;
 271        }
 272
 273        mod_timer(&vha->timer, jiffies + interval * HZ);
 274}
 275
 276static __inline__ void
 277qla2x00_stop_timer(scsi_qla_host_t *vha)
 278{
 279        del_timer_sync(&vha->timer);
 280        vha->timer_active = 0;
 281}
 282
 283static int qla2x00_do_dpc(void *data);
 284
 285static void qla2x00_rst_aen(scsi_qla_host_t *);
 286
 287static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 288        struct req_que **, struct rsp_que **);
 289static void qla2x00_free_fw_dump(struct qla_hw_data *);
 290static void qla2x00_mem_free(struct qla_hw_data *);
 291static void qla2x00_sp_free_dma(srb_t *);
 292
 293/* -------------------------------------------------------------------------- */
 294static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 295{
 296        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 297        ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 298                                GFP_KERNEL);
 299        if (!ha->req_q_map) {
 300                ql_log(ql_log_fatal, vha, 0x003b,
 301                    "Unable to allocate memory for request queue ptrs.\n");
 302                goto fail_req_map;
 303        }
 304
 305        ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 306                                GFP_KERNEL);
 307        if (!ha->rsp_q_map) {
 308                ql_log(ql_log_fatal, vha, 0x003c,
 309                    "Unable to allocate memory for response queue ptrs.\n");
 310                goto fail_rsp_map;
 311        }
 312        set_bit(0, ha->rsp_qid_map);
 313        set_bit(0, ha->req_qid_map);
 314        return 1;
 315
 316fail_rsp_map:
 317        kfree(ha->req_q_map);
 318        ha->req_q_map = NULL;
 319fail_req_map:
 320        return -ENOMEM;
 321}
 322
 323static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 324{
 325        if (req && req->ring)
 326                dma_free_coherent(&ha->pdev->dev,
 327                (req->length + 1) * sizeof(request_t),
 328                req->ring, req->dma);
 329
 330        kfree(req);
 331        req = NULL;
 332}
 333
 334static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 335{
 336        if (rsp && rsp->ring)
 337                dma_free_coherent(&ha->pdev->dev,
 338                (rsp->length + 1) * sizeof(response_t),
 339                rsp->ring, rsp->dma);
 340
 341        kfree(rsp);
 342        rsp = NULL;
 343}
 344
 345static void qla2x00_free_queues(struct qla_hw_data *ha)
 346{
 347        struct req_que *req;
 348        struct rsp_que *rsp;
 349        int cnt;
 350
 351        for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 352                req = ha->req_q_map[cnt];
 353                qla2x00_free_req_que(ha, req);
 354        }
 355        kfree(ha->req_q_map);
 356        ha->req_q_map = NULL;
 357
 358        for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 359                rsp = ha->rsp_q_map[cnt];
 360                qla2x00_free_rsp_que(ha, rsp);
 361        }
 362        kfree(ha->rsp_q_map);
 363        ha->rsp_q_map = NULL;
 364}
 365
 366static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 367{
 368        uint16_t options = 0;
 369        int ques, req, ret;
 370        struct qla_hw_data *ha = vha->hw;
 371
 372        if (!(ha->fw_attributes & BIT_6)) {
 373                ql_log(ql_log_warn, vha, 0x00d8,
 374                    "Firmware is not multi-queue capable.\n");
 375                goto fail;
 376        }
 377        if (ql2xmultique_tag) {
 378                /* create a request queue for IO */
 379                options |= BIT_7;
 380                req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 381                        QLA_DEFAULT_QUE_QOS);
 382                if (!req) {
 383                        ql_log(ql_log_warn, vha, 0x00e0,
 384                            "Failed to create request queue.\n");
 385                        goto fail;
 386                }
 387                ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 388                vha->req = ha->req_q_map[req];
 389                options |= BIT_1;
 390                for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 391                        ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 392                        if (!ret) {
 393                                ql_log(ql_log_warn, vha, 0x00e8,
 394                                    "Failed to create response queue.\n");
 395                                goto fail2;
 396                        }
 397                }
 398                ha->flags.cpu_affinity_enabled = 1;
 399                ql_dbg(ql_dbg_multiq, vha, 0xc007,
 400                    "CPU affinity mode enalbed, "
 401                    "no. of response queues:%d no. of request queues:%d.\n",
 402                    ha->max_rsp_queues, ha->max_req_queues);
 403                ql_dbg(ql_dbg_init, vha, 0x00e9,
 404                    "CPU affinity mode enalbed, "
 405                    "no. of response queues:%d no. of request queues:%d.\n",
 406                    ha->max_rsp_queues, ha->max_req_queues);
 407        }
 408        return 0;
 409fail2:
 410        qla25xx_delete_queues(vha);
 411        destroy_workqueue(ha->wq);
 412        ha->wq = NULL;
 413fail:
 414        ha->mqenable = 0;
 415        kfree(ha->req_q_map);
 416        kfree(ha->rsp_q_map);
 417        ha->max_req_queues = ha->max_rsp_queues = 1;
 418        return 1;
 419}
 420
 421static char *
 422qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 423{
 424        struct qla_hw_data *ha = vha->hw;
 425        static char *pci_bus_modes[] = {
 426                "33", "66", "100", "133",
 427        };
 428        uint16_t pci_bus;
 429
 430        strcpy(str, "PCI");
 431        pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 432        if (pci_bus) {
 433                strcat(str, "-X (");
 434                strcat(str, pci_bus_modes[pci_bus]);
 435        } else {
 436                pci_bus = (ha->pci_attr & BIT_8) >> 8;
 437                strcat(str, " (");
 438                strcat(str, pci_bus_modes[pci_bus]);
 439        }
 440        strcat(str, " MHz)");
 441
 442        return (str);
 443}
 444
 445static char *
 446qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 447{
 448        static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 449        struct qla_hw_data *ha = vha->hw;
 450        uint32_t pci_bus;
 451        int pcie_reg;
 452
 453        pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 454        if (pcie_reg) {
 455                char lwstr[6];
 456                uint16_t pcie_lstat, lspeed, lwidth;
 457
 458                pcie_reg += 0x12;
 459                pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 460                lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 461                lwidth = (pcie_lstat &
 462                    (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 463
 464                strcpy(str, "PCIe (");
 465                if (lspeed == 1)
 466                        strcat(str, "2.5GT/s ");
 467                else if (lspeed == 2)
 468                        strcat(str, "5.0GT/s ");
 469                else
 470                        strcat(str, "<unknown> ");
 471                snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 472                strcat(str, lwstr);
 473
 474                return str;
 475        }
 476
 477        strcpy(str, "PCI");
 478        pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 479        if (pci_bus == 0 || pci_bus == 8) {
 480                strcat(str, " (");
 481                strcat(str, pci_bus_modes[pci_bus >> 3]);
 482        } else {
 483                strcat(str, "-X ");
 484                if (pci_bus & BIT_2)
 485                        strcat(str, "Mode 2");
 486                else
 487                        strcat(str, "Mode 1");
 488                strcat(str, " (");
 489                strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 490        }
 491        strcat(str, " MHz)");
 492
 493        return str;
 494}
 495
 496static char *
 497qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 498{
 499        char un_str[10];
 500        struct qla_hw_data *ha = vha->hw;
 501
 502        sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 503            ha->fw_minor_version,
 504            ha->fw_subminor_version);
 505
 506        if (ha->fw_attributes & BIT_9) {
 507                strcat(str, "FLX");
 508                return (str);
 509        }
 510
 511        switch (ha->fw_attributes & 0xFF) {
 512        case 0x7:
 513                strcat(str, "EF");
 514                break;
 515        case 0x17:
 516                strcat(str, "TP");
 517                break;
 518        case 0x37:
 519                strcat(str, "IP");
 520                break;
 521        case 0x77:
 522                strcat(str, "VI");
 523                break;
 524        default:
 525                sprintf(un_str, "(%x)", ha->fw_attributes);
 526                strcat(str, un_str);
 527                break;
 528        }
 529        if (ha->fw_attributes & 0x100)
 530                strcat(str, "X");
 531
 532        return (str);
 533}
 534
 535static char *
 536qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 537{
 538        struct qla_hw_data *ha = vha->hw;
 539
 540        sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 541            ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 542        return str;
 543}
 544
 545static inline srb_t *
 546qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 547        struct scsi_cmnd *cmd)
 548{
 549        srb_t *sp;
 550        struct qla_hw_data *ha = vha->hw;
 551
 552        sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 553        if (!sp) {
 554                ql_log(ql_log_warn, vha, 0x3006,
 555                    "Memory allocation failed for sp.\n");
 556                return sp;
 557        }
 558
 559        atomic_set(&sp->ref_count, 1);
 560        sp->fcport = fcport;
 561        sp->cmd = cmd;
 562        sp->flags = 0;
 563        CMD_SP(cmd) = (void *)sp;
 564        sp->ctx = NULL;
 565
 566        return sp;
 567}
 568
 569static int
 570qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 571{
 572        scsi_qla_host_t *vha = shost_priv(host);
 573        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 574        struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 575        struct qla_hw_data *ha = vha->hw;
 576        struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 577        srb_t *sp;
 578        int rval;
 579
 580        if (ha->flags.eeh_busy) {
 581                if (ha->flags.pci_channel_io_perm_failure) {
 582                        ql_dbg(ql_dbg_io, vha, 0x3001,
 583                            "PCI Channel IO permanent failure, exiting "
 584                            "cmd=%p.\n", cmd);
 585                        cmd->result = DID_NO_CONNECT << 16;
 586                } else {
 587                        ql_dbg(ql_dbg_io, vha, 0x3002,
 588                            "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
 589                        cmd->result = DID_REQUEUE << 16;
 590                }
 591                goto qc24_fail_command;
 592        }
 593
 594        rval = fc_remote_port_chkready(rport);
 595        if (rval) {
 596                cmd->result = rval;
 597                ql_dbg(ql_dbg_io, vha, 0x3003,
 598                    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
 599                    cmd, rval);
 600                goto qc24_fail_command;
 601        }
 602
 603        if (!vha->flags.difdix_supported &&
 604                scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 605                        ql_dbg(ql_dbg_io, vha, 0x3004,
 606                            "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
 607                            cmd);
 608                        cmd->result = DID_NO_CONNECT << 16;
 609                        goto qc24_fail_command;
 610        }
 611        if (atomic_read(&fcport->state) != FCS_ONLINE) {
 612                if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 613                        atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 614                        ql_dbg(ql_dbg_io, vha, 0x3005,
 615                            "Returning DNC, fcport_state=%d loop_state=%d.\n",
 616                            atomic_read(&fcport->state),
 617                            atomic_read(&base_vha->loop_state));
 618                        cmd->result = DID_NO_CONNECT << 16;
 619                        goto qc24_fail_command;
 620                }
 621                goto qc24_target_busy;
 622        }
 623
 624        sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 625        if (!sp)
 626                goto qc24_host_busy;
 627
 628        rval = ha->isp_ops->start_scsi(sp);
 629        if (rval != QLA_SUCCESS) {
 630                ql_dbg(ql_dbg_io, vha, 0x3013,
 631                    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
 632                goto qc24_host_busy_free_sp;
 633        }
 634
 635        return 0;
 636
 637qc24_host_busy_free_sp:
 638        qla2x00_sp_free_dma(sp);
 639        mempool_free(sp, ha->srb_mempool);
 640
 641qc24_host_busy:
 642        return SCSI_MLQUEUE_HOST_BUSY;
 643
 644qc24_target_busy:
 645        return SCSI_MLQUEUE_TARGET_BUSY;
 646
 647qc24_fail_command:
 648        cmd->scsi_done(cmd);
 649
 650        return 0;
 651}
 652
 653/*
 654 * qla2x00_eh_wait_on_command
 655 *    Waits for the command to be returned by the Firmware for some
 656 *    max time.
 657 *
 658 * Input:
 659 *    cmd = Scsi Command to wait on.
 660 *
 661 * Return:
 662 *    Not Found : 0
 663 *    Found : 1
 664 */
 665static int
 666qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 667{
 668#define ABORT_POLLING_PERIOD    1000
 669#define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 670        unsigned long wait_iter = ABORT_WAIT_ITER;
 671        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 672        struct qla_hw_data *ha = vha->hw;
 673        int ret = QLA_SUCCESS;
 674
 675        if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 676                ql_dbg(ql_dbg_taskm, vha, 0x8005,
 677                    "Return:eh_wait.\n");
 678                return ret;
 679        }
 680
 681        while (CMD_SP(cmd) && wait_iter--) {
 682                msleep(ABORT_POLLING_PERIOD);
 683        }
 684        if (CMD_SP(cmd))
 685                ret = QLA_FUNCTION_FAILED;
 686
 687        return ret;
 688}
 689
 690/*
 691 * qla2x00_wait_for_hba_online
 692 *    Wait till the HBA is online after going through
 693 *    <= MAX_RETRIES_OF_ISP_ABORT  or
 694 *    finally HBA is disabled ie marked offline
 695 *
 696 * Input:
 697 *     ha - pointer to host adapter structure
 698 *
 699 * Note:
 700 *    Does context switching-Release SPIN_LOCK
 701 *    (if any) before calling this routine.
 702 *
 703 * Return:
 704 *    Success (Adapter is online) : 0
 705 *    Failed  (Adapter is offline/disabled) : 1
 706 */
 707int
 708qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 709{
 710        int             return_status;
 711        unsigned long   wait_online;
 712        struct qla_hw_data *ha = vha->hw;
 713        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 714
 715        wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 716        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 717            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 718            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 719            ha->dpc_active) && time_before(jiffies, wait_online)) {
 720
 721                msleep(1000);
 722        }
 723        if (base_vha->flags.online)
 724                return_status = QLA_SUCCESS;
 725        else
 726                return_status = QLA_FUNCTION_FAILED;
 727
 728        return (return_status);
 729}
 730
 731/*
 732 * qla2x00_wait_for_reset_ready
 733 *    Wait till the HBA is online after going through
 734 *    <= MAX_RETRIES_OF_ISP_ABORT  or
 735 *    finally HBA is disabled ie marked offline or flash
 736 *    operations are in progress.
 737 *
 738 * Input:
 739 *     ha - pointer to host adapter structure
 740 *
 741 * Note:
 742 *    Does context switching-Release SPIN_LOCK
 743 *    (if any) before calling this routine.
 744 *
 745 * Return:
 746 *    Success (Adapter is online/no flash ops) : 0
 747 *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 748 */
 749static int
 750qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 751{
 752        int             return_status;
 753        unsigned long   wait_online;
 754        struct qla_hw_data *ha = vha->hw;
 755        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 756
 757        wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 758        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 759            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 760            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 761            ha->optrom_state != QLA_SWAITING ||
 762            ha->dpc_active) && time_before(jiffies, wait_online))
 763                msleep(1000);
 764
 765        if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 766                return_status = QLA_SUCCESS;
 767        else
 768                return_status = QLA_FUNCTION_FAILED;
 769
 770        ql_dbg(ql_dbg_taskm, vha, 0x8019,
 771            "%s return status=%d.\n", __func__, return_status);
 772
 773        return return_status;
 774}
 775
 776int
 777qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 778{
 779        int             return_status;
 780        unsigned long   wait_reset;
 781        struct qla_hw_data *ha = vha->hw;
 782        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 783
 784        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 785        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 786            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 787            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 788            ha->dpc_active) && time_before(jiffies, wait_reset)) {
 789
 790                msleep(1000);
 791
 792                if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 793                    ha->flags.chip_reset_done)
 794                        break;
 795        }
 796        if (ha->flags.chip_reset_done)
 797                return_status = QLA_SUCCESS;
 798        else
 799                return_status = QLA_FUNCTION_FAILED;
 800
 801        return return_status;
 802}
 803
 804/*
 805 * qla2x00_wait_for_loop_ready
 806 *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 807 *    to be in LOOP_READY state.
 808 * Input:
 809 *     ha - pointer to host adapter structure
 810 *
 811 * Note:
 812 *    Does context switching-Release SPIN_LOCK
 813 *    (if any) before calling this routine.
 814 *
 815 *
 816 * Return:
 817 *    Success (LOOP_READY) : 0
 818 *    Failed  (LOOP_NOT_READY) : 1
 819 */
 820static inline int
 821qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 822{
 823        int      return_status = QLA_SUCCESS;
 824        unsigned long loop_timeout ;
 825        struct qla_hw_data *ha = vha->hw;
 826        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 827
 828        /* wait for 5 min at the max for loop to be ready */
 829        loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 830
 831        while ((!atomic_read(&base_vha->loop_down_timer) &&
 832            atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 833            atomic_read(&base_vha->loop_state) != LOOP_READY) {
 834                if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 835                        return_status = QLA_FUNCTION_FAILED;
 836                        break;
 837                }
 838                msleep(1000);
 839                if (time_after_eq(jiffies, loop_timeout)) {
 840                        return_status = QLA_FUNCTION_FAILED;
 841                        break;
 842                }
 843        }
 844        return (return_status);
 845}
 846
 847static void
 848sp_get(struct srb *sp)
 849{
 850        atomic_inc(&sp->ref_count);
 851}
 852
 853/**************************************************************************
 854* qla2xxx_eh_abort
 855*
 856* Description:
 857*    The abort function will abort the specified command.
 858*
 859* Input:
 860*    cmd = Linux SCSI command packet to be aborted.
 861*
 862* Returns:
 863*    Either SUCCESS or FAILED.
 864*
 865* Note:
 866*    Only return FAILED if command not returned by firmware.
 867**************************************************************************/
 868static int
 869qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 870{
 871        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 872        srb_t *sp;
 873        int ret;
 874        unsigned int id, lun;
 875        unsigned long flags;
 876        int wait = 0;
 877        struct qla_hw_data *ha = vha->hw;
 878
 879        ql_dbg(ql_dbg_taskm, vha, 0x8000,
 880            "Entered %s for cmd=%p.\n", __func__, cmd);
 881        if (!CMD_SP(cmd))
 882                return SUCCESS;
 883
 884        ret = fc_block_scsi_eh(cmd);
 885        ql_dbg(ql_dbg_taskm, vha, 0x8001,
 886            "Return value of fc_block_scsi_eh=%d.\n", ret);
 887        if (ret != 0)
 888                return ret;
 889        ret = SUCCESS;
 890
 891        id = cmd->device->id;
 892        lun = cmd->device->lun;
 893
 894        spin_lock_irqsave(&ha->hardware_lock, flags);
 895        sp = (srb_t *) CMD_SP(cmd);
 896        if (!sp) {
 897                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 898                return SUCCESS;
 899        }
 900
 901        ql_dbg(ql_dbg_taskm, vha, 0x8002,
 902            "Aborting sp=%p cmd=%p from RISC ", sp, cmd);
 903
 904        /* Get a reference to the sp and drop the lock.*/
 905        sp_get(sp);
 906
 907        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 908        if (ha->isp_ops->abort_command(sp)) {
 909                ql_dbg(ql_dbg_taskm, vha, 0x8003,
 910                    "Abort command mbx failed for cmd=%p.\n", cmd);
 911        } else {
 912                ql_dbg(ql_dbg_taskm, vha, 0x8004,
 913                    "Abort command mbx success.\n");
 914                wait = 1;
 915        }
 916
 917        spin_lock_irqsave(&ha->hardware_lock, flags);
 918        qla2x00_sp_compl(ha, sp);
 919        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 920
 921        /* Did the command return during mailbox execution? */
 922        if (ret == FAILED && !CMD_SP(cmd))
 923                ret = SUCCESS;
 924
 925        /* Wait for the command to be returned. */
 926        if (wait) {
 927                if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 928                        ql_log(ql_log_warn, vha, 0x8006,
 929                            "Abort handler timed out for cmd=%p.\n", cmd);
 930                        ret = FAILED;
 931                }
 932        }
 933
 934        ql_log(ql_log_info, vha, 0x801c,
 935            "Abort command issued --  %d %x.\n", wait, ret);
 936
 937        return ret;
 938}
 939
 940int
 941qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 942        unsigned int l, enum nexus_wait_type type)
 943{
 944        int cnt, match, status;
 945        unsigned long flags;
 946        struct qla_hw_data *ha = vha->hw;
 947        struct req_que *req;
 948        srb_t *sp;
 949
 950        status = QLA_SUCCESS;
 951
 952        spin_lock_irqsave(&ha->hardware_lock, flags);
 953        req = vha->req;
 954        for (cnt = 1; status == QLA_SUCCESS &&
 955                cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 956                sp = req->outstanding_cmds[cnt];
 957                if (!sp)
 958                        continue;
 959                if ((sp->ctx) && !IS_PROT_IO(sp))
 960                        continue;
 961                if (vha->vp_idx != sp->fcport->vha->vp_idx)
 962                        continue;
 963                match = 0;
 964                switch (type) {
 965                case WAIT_HOST:
 966                        match = 1;
 967                        break;
 968                case WAIT_TARGET:
 969                        match = sp->cmd->device->id == t;
 970                        break;
 971                case WAIT_LUN:
 972                        match = (sp->cmd->device->id == t &&
 973                                sp->cmd->device->lun == l);
 974                        break;
 975                }
 976                if (!match)
 977                        continue;
 978
 979                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 980                status = qla2x00_eh_wait_on_command(sp->cmd);
 981                spin_lock_irqsave(&ha->hardware_lock, flags);
 982        }
 983        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 984
 985        return status;
 986}
 987
 988static char *reset_errors[] = {
 989        "HBA not online",
 990        "HBA not ready",
 991        "Task management failed",
 992        "Waiting for command completions",
 993};
 994
 995static int
 996__qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 997    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 998{
 999        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1000        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1001        int err;
1002
1003        if (!fcport) {
1004                ql_log(ql_log_warn, vha, 0x8007,
1005                    "fcport is NULL.\n");
1006                return FAILED;
1007        }
1008
1009        err = fc_block_scsi_eh(cmd);
1010        ql_dbg(ql_dbg_taskm, vha, 0x8008,
1011            "fc_block_scsi_eh ret=%d.\n", err);
1012        if (err != 0)
1013                return err;
1014
1015        ql_log(ql_log_info, vha, 0x8009,
1016            "%s RESET ISSUED for id %d lun %d cmd=%p.\n", name,
1017            cmd->device->id, cmd->device->lun, cmd);
1018
1019        err = 0;
1020        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1021                ql_log(ql_log_warn, vha, 0x800a,
1022                    "Wait for hba online failed for cmd=%p.\n", cmd);
1023                goto eh_reset_failed;
1024        }
1025        err = 1;
1026        if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS) {
1027                ql_log(ql_log_warn, vha, 0x800b,
1028                    "Wait for loop ready failed for cmd=%p.\n", cmd);
1029                goto eh_reset_failed;
1030        }
1031        err = 2;
1032        if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1033                != QLA_SUCCESS) {
1034                ql_log(ql_log_warn, vha, 0x800c,
1035                    "do_reset failed for cmd=%p.\n", cmd);
1036                goto eh_reset_failed;
1037        }
1038        err = 3;
1039        if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1040            cmd->device->lun, type) != QLA_SUCCESS) {
1041                ql_log(ql_log_warn, vha, 0x800d,
1042                    "wait for peding cmds failed for cmd=%p.\n", cmd);
1043                goto eh_reset_failed;
1044        }
1045
1046        ql_log(ql_log_info, vha, 0x800e,
1047            "%s RESET SUCCEEDED for id %d lun %d cmd=%p.\n", name,
1048            cmd->device->id, cmd->device->lun, cmd);
1049
1050        return SUCCESS;
1051
1052eh_reset_failed:
1053        ql_log(ql_log_info, vha, 0x800f,
1054            "%s RESET FAILED: %s for id %d lun %d cmd=%p.\n", name,
1055            reset_errors[err], cmd->device->id, cmd->device->lun);
1056        return FAILED;
1057}
1058
1059static int
1060qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1061{
1062        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1063        struct qla_hw_data *ha = vha->hw;
1064
1065        return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1066            ha->isp_ops->lun_reset);
1067}
1068
1069static int
1070qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1071{
1072        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1073        struct qla_hw_data *ha = vha->hw;
1074
1075        return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1076            ha->isp_ops->target_reset);
1077}
1078
1079/**************************************************************************
1080* qla2xxx_eh_bus_reset
1081*
1082* Description:
1083*    The bus reset function will reset the bus and abort any executing
1084*    commands.
1085*
1086* Input:
1087*    cmd = Linux SCSI command packet of the command that cause the
1088*          bus reset.
1089*
1090* Returns:
1091*    SUCCESS/FAILURE (defined as macro in scsi.h).
1092*
1093**************************************************************************/
1094static int
1095qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1096{
1097        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1098        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1099        int ret = FAILED;
1100        unsigned int id, lun;
1101
1102        id = cmd->device->id;
1103        lun = cmd->device->lun;
1104
1105        if (!fcport) {
1106                ql_log(ql_log_warn, vha, 0x8010,
1107                    "fcport is NULL.\n");
1108                return ret;
1109        }
1110
1111        ret = fc_block_scsi_eh(cmd);
1112        ql_dbg(ql_dbg_taskm, vha, 0x8011,
1113            "fc_block_scsi_eh ret=%d.\n", ret);
1114        if (ret != 0)
1115                return ret;
1116        ret = FAILED;
1117
1118        ql_log(ql_log_info, vha, 0x8012,
1119            "BUS RESET ISSUED for id %d lun %d.\n", id, lun);
1120
1121        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1122                ql_log(ql_log_fatal, vha, 0x8013,
1123                    "Wait for hba online failed board disabled.\n");
1124                goto eh_bus_reset_done;
1125        }
1126
1127        if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1128                if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1129                        ret = SUCCESS;
1130        }
1131        if (ret == FAILED)
1132                goto eh_bus_reset_done;
1133
1134        /* Flush outstanding commands. */
1135        if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1136            QLA_SUCCESS) {
1137                ql_log(ql_log_warn, vha, 0x8014,
1138                    "Wait for pending commands failed.\n");
1139                ret = FAILED;
1140        }
1141
1142eh_bus_reset_done:
1143        ql_log(ql_log_warn, vha, 0x802b,
1144            "BUS RESET %s.\n", (ret == FAILED) ? "FAILED" : "SUCCEDED");
1145
1146        return ret;
1147}
1148
1149/**************************************************************************
1150* qla2xxx_eh_host_reset
1151*
1152* Description:
1153*    The reset function will reset the Adapter.
1154*
1155* Input:
1156*      cmd = Linux SCSI command packet of the command that cause the
1157*            adapter reset.
1158*
1159* Returns:
1160*      Either SUCCESS or FAILED.
1161*
1162* Note:
1163**************************************************************************/
1164static int
1165qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1166{
1167        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1168        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1169        struct qla_hw_data *ha = vha->hw;
1170        int ret = FAILED;
1171        unsigned int id, lun;
1172        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1173
1174        id = cmd->device->id;
1175        lun = cmd->device->lun;
1176
1177        if (!fcport) {
1178                ql_log(ql_log_warn, vha, 0x8016,
1179                    "fcport is NULL.\n");
1180                return ret;
1181        }
1182
1183        ret = fc_block_scsi_eh(cmd);
1184        ql_dbg(ql_dbg_taskm, vha, 0x8017,
1185            "fc_block_scsi_eh ret=%d.\n", ret);
1186        if (ret != 0)
1187                return ret;
1188        ret = FAILED;
1189
1190        ql_log(ql_log_info, vha, 0x8018,
1191            "ADAPTER RESET ISSUED for id %d lun %d.\n", id, lun);
1192
1193        if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1194                goto eh_host_reset_lock;
1195
1196        /*
1197         * Fixme-may be dpc thread is active and processing
1198         * loop_resync,so wait a while for it to
1199         * be completed and then issue big hammer.Otherwise
1200         * it may cause I/O failure as big hammer marks the
1201         * devices as lost kicking of the port_down_timer
1202         * while dpc is stuck for the mailbox to complete.
1203         */
1204        qla2x00_wait_for_loop_ready(vha);
1205        if (vha != base_vha) {
1206                if (qla2x00_vp_abort_isp(vha))
1207                        goto eh_host_reset_lock;
1208        } else {
1209                if (IS_QLA82XX(vha->hw)) {
1210                        if (!qla82xx_fcoe_ctx_reset(vha)) {
1211                                /* Ctx reset success */
1212                                ret = SUCCESS;
1213                                goto eh_host_reset_lock;
1214                        }
1215                        /* fall thru if ctx reset failed */
1216                }
1217                if (ha->wq)
1218                        flush_workqueue(ha->wq);
1219
1220                set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1221                if (ha->isp_ops->abort_isp(base_vha)) {
1222                        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1223                        /* failed. schedule dpc to try */
1224                        set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1225
1226                        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1227                                ql_log(ql_log_warn, vha, 0x802a,
1228                                    "wait for hba online failed.\n");
1229                                goto eh_host_reset_lock;
1230                        }
1231                }
1232                clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1233        }
1234
1235        /* Waiting for command to be returned to OS.*/
1236        if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1237                QLA_SUCCESS)
1238                ret = SUCCESS;
1239
1240eh_host_reset_lock:
1241        qla_printk(KERN_INFO, ha, "%s: reset %s.\n", __func__,
1242            (ret == FAILED) ? "failed" : "succeeded");
1243
1244        return ret;
1245}
1246
1247/*
1248* qla2x00_loop_reset
1249*      Issue loop reset.
1250*
1251* Input:
1252*      ha = adapter block pointer.
1253*
1254* Returns:
1255*      0 = success
1256*/
1257int
1258qla2x00_loop_reset(scsi_qla_host_t *vha)
1259{
1260        int ret;
1261        struct fc_port *fcport;
1262        struct qla_hw_data *ha = vha->hw;
1263
1264        if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1265                list_for_each_entry(fcport, &vha->vp_fcports, list) {
1266                        if (fcport->port_type != FCT_TARGET)
1267                                continue;
1268
1269                        ret = ha->isp_ops->target_reset(fcport, 0, 0);
1270                        if (ret != QLA_SUCCESS) {
1271                                ql_dbg(ql_dbg_taskm, vha, 0x802c,
1272                                    "Bus Reset failed: Target Reset=%d "
1273                                    "d_id=%x.\n", ret, fcport->d_id.b24);
1274                        }
1275                }
1276        }
1277
1278        if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1279                ret = qla2x00_full_login_lip(vha);
1280                if (ret != QLA_SUCCESS) {
1281                        ql_dbg(ql_dbg_taskm, vha, 0x802d,
1282                            "full_login_lip=%d.\n", ret);
1283                }
1284                atomic_set(&vha->loop_state, LOOP_DOWN);
1285                atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1286                qla2x00_mark_all_devices_lost(vha, 0);
1287                qla2x00_wait_for_loop_ready(vha);
1288        }
1289
1290        if (ha->flags.enable_lip_reset) {
1291                ret = qla2x00_lip_reset(vha);
1292                if (ret != QLA_SUCCESS) {
1293                        ql_dbg(ql_dbg_taskm, vha, 0x802e,
1294                            "lip_reset failed (%d).\n", ret);
1295                } else
1296                        qla2x00_wait_for_loop_ready(vha);
1297        }
1298
1299        /* Issue marker command only when we are going to start the I/O */
1300        vha->marker_needed = 1;
1301
1302        return QLA_SUCCESS;
1303}
1304
1305void
1306qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1307{
1308        int que, cnt;
1309        unsigned long flags;
1310        srb_t *sp;
1311        struct srb_ctx *ctx;
1312        struct qla_hw_data *ha = vha->hw;
1313        struct req_que *req;
1314
1315        spin_lock_irqsave(&ha->hardware_lock, flags);
1316        for (que = 0; que < ha->max_req_queues; que++) {
1317                req = ha->req_q_map[que];
1318                if (!req)
1319                        continue;
1320                for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1321                        sp = req->outstanding_cmds[cnt];
1322                        if (sp) {
1323                                req->outstanding_cmds[cnt] = NULL;
1324                                if (!sp->ctx ||
1325                                        (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1326                                        IS_PROT_IO(sp)) {
1327                                        sp->cmd->result = res;
1328                                        qla2x00_sp_compl(ha, sp);
1329                                } else {
1330                                        ctx = sp->ctx;
1331                                        if (ctx->type == SRB_ELS_CMD_RPT ||
1332                                            ctx->type == SRB_ELS_CMD_HST ||
1333                                            ctx->type == SRB_CT_CMD) {
1334                                                struct fc_bsg_job *bsg_job =
1335                                                    ctx->u.bsg_job;
1336                                                if (bsg_job->request->msgcode
1337                                                    == FC_BSG_HST_CT)
1338                                                        kfree(sp->fcport);
1339                                                bsg_job->req->errors = 0;
1340                                                bsg_job->reply->result = res;
1341                                                bsg_job->job_done(bsg_job);
1342                                                kfree(sp->ctx);
1343                                                mempool_free(sp,
1344                                                        ha->srb_mempool);
1345                                        } else {
1346                                                ctx->u.iocb_cmd->free(sp);
1347                                        }
1348                                }
1349                        }
1350                }
1351        }
1352        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1353}
1354
1355static int
1356qla2xxx_slave_alloc(struct scsi_device *sdev)
1357{
1358        struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1359
1360        if (!rport || fc_remote_port_chkready(rport))
1361                return -ENXIO;
1362
1363        sdev->hostdata = *(fc_port_t **)rport->dd_data;
1364
1365        return 0;
1366}
1367
1368static int
1369qla2xxx_slave_configure(struct scsi_device *sdev)
1370{
1371        scsi_qla_host_t *vha = shost_priv(sdev->host);
1372        struct req_que *req = vha->req;
1373
1374        if (sdev->tagged_supported)
1375                scsi_activate_tcq(sdev, req->max_q_depth);
1376        else
1377                scsi_deactivate_tcq(sdev, req->max_q_depth);
1378        return 0;
1379}
1380
1381static void
1382qla2xxx_slave_destroy(struct scsi_device *sdev)
1383{
1384        sdev->hostdata = NULL;
1385}
1386
1387static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1388{
1389        fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1390
1391        if (!scsi_track_queue_full(sdev, qdepth))
1392                return;
1393
1394        ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1395            "Queue depth adjusted-down "
1396            "to %d for scsi(%ld:%d:%d:%d).\n",
1397            sdev->queue_depth, fcport->vha->host_no,
1398            sdev->channel, sdev->id, sdev->lun);
1399}
1400
1401static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1402{
1403        fc_port_t *fcport = sdev->hostdata;
1404        struct scsi_qla_host *vha = fcport->vha;
1405        struct req_que *req = NULL;
1406
1407        req = vha->req;
1408        if (!req)
1409                return;
1410
1411        if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1412                return;
1413
1414        if (sdev->ordered_tags)
1415                scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1416        else
1417                scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1418
1419        ql_dbg(ql_dbg_io, vha, 0x302a,
1420            "Queue depth adjusted-up to %d for "
1421            "scsi(%ld:%d:%d:%d).\n",
1422            sdev->queue_depth, fcport->vha->host_no,
1423            sdev->channel, sdev->id, sdev->lun);
1424}
1425
1426static int
1427qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1428{
1429        switch (reason) {
1430        case SCSI_QDEPTH_DEFAULT:
1431                scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1432                break;
1433        case SCSI_QDEPTH_QFULL:
1434                qla2x00_handle_queue_full(sdev, qdepth);
1435                break;
1436        case SCSI_QDEPTH_RAMP_UP:
1437                qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1438                break;
1439        default:
1440                return -EOPNOTSUPP;
1441        }
1442
1443        return sdev->queue_depth;
1444}
1445
1446static int
1447qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1448{
1449        if (sdev->tagged_supported) {
1450                scsi_set_tag_type(sdev, tag_type);
1451                if (tag_type)
1452                        scsi_activate_tcq(sdev, sdev->queue_depth);
1453                else
1454                        scsi_deactivate_tcq(sdev, sdev->queue_depth);
1455        } else
1456                tag_type = 0;
1457
1458        return tag_type;
1459}
1460
1461/**
1462 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1463 * @ha: HA context
1464 *
1465 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1466 * supported addressing method.
1467 */
1468static void
1469qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1470{
1471        /* Assume a 32bit DMA mask. */
1472        ha->flags.enable_64bit_addressing = 0;
1473
1474        if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1475                /* Any upper-dword bits set? */
1476                if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1477                    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1478                        /* Ok, a 64bit DMA mask is applicable. */
1479                        ha->flags.enable_64bit_addressing = 1;
1480                        ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1481                        ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1482                        return;
1483                }
1484        }
1485
1486        dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1487        pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1488}
1489
1490static void
1491qla2x00_enable_intrs(struct qla_hw_data *ha)
1492{
1493        unsigned long flags = 0;
1494        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1495
1496        spin_lock_irqsave(&ha->hardware_lock, flags);
1497        ha->interrupts_on = 1;
1498        /* enable risc and host interrupts */
1499        WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1500        RD_REG_WORD(&reg->ictrl);
1501        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1502
1503}
1504
1505static void
1506qla2x00_disable_intrs(struct qla_hw_data *ha)
1507{
1508        unsigned long flags = 0;
1509        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1510
1511        spin_lock_irqsave(&ha->hardware_lock, flags);
1512        ha->interrupts_on = 0;
1513        /* disable risc and host interrupts */
1514        WRT_REG_WORD(&reg->ictrl, 0);
1515        RD_REG_WORD(&reg->ictrl);
1516        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1517}
1518
1519static void
1520qla24xx_enable_intrs(struct qla_hw_data *ha)
1521{
1522        unsigned long flags = 0;
1523        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1524
1525        spin_lock_irqsave(&ha->hardware_lock, flags);
1526        ha->interrupts_on = 1;
1527        WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1528        RD_REG_DWORD(&reg->ictrl);
1529        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1530}
1531
1532static void
1533qla24xx_disable_intrs(struct qla_hw_data *ha)
1534{
1535        unsigned long flags = 0;
1536        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1537
1538        if (IS_NOPOLLING_TYPE(ha))
1539                return;
1540        spin_lock_irqsave(&ha->hardware_lock, flags);
1541        ha->interrupts_on = 0;
1542        WRT_REG_DWORD(&reg->ictrl, 0);
1543        RD_REG_DWORD(&reg->ictrl);
1544        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1545}
1546
1547static struct isp_operations qla2100_isp_ops = {
1548        .pci_config             = qla2100_pci_config,
1549        .reset_chip             = qla2x00_reset_chip,
1550        .chip_diag              = qla2x00_chip_diag,
1551        .config_rings           = qla2x00_config_rings,
1552        .reset_adapter          = qla2x00_reset_adapter,
1553        .nvram_config           = qla2x00_nvram_config,
1554        .update_fw_options      = qla2x00_update_fw_options,
1555        .load_risc              = qla2x00_load_risc,
1556        .pci_info_str           = qla2x00_pci_info_str,
1557        .fw_version_str         = qla2x00_fw_version_str,
1558        .intr_handler           = qla2100_intr_handler,
1559        .enable_intrs           = qla2x00_enable_intrs,
1560        .disable_intrs          = qla2x00_disable_intrs,
1561        .abort_command          = qla2x00_abort_command,
1562        .target_reset           = qla2x00_abort_target,
1563        .lun_reset              = qla2x00_lun_reset,
1564        .fabric_login           = qla2x00_login_fabric,
1565        .fabric_logout          = qla2x00_fabric_logout,
1566        .calc_req_entries       = qla2x00_calc_iocbs_32,
1567        .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1568        .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1569        .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1570        .read_nvram             = qla2x00_read_nvram_data,
1571        .write_nvram            = qla2x00_write_nvram_data,
1572        .fw_dump                = qla2100_fw_dump,
1573        .beacon_on              = NULL,
1574        .beacon_off             = NULL,
1575        .beacon_blink           = NULL,
1576        .read_optrom            = qla2x00_read_optrom_data,
1577        .write_optrom           = qla2x00_write_optrom_data,
1578        .get_flash_version      = qla2x00_get_flash_version,
1579        .start_scsi             = qla2x00_start_scsi,
1580        .abort_isp              = qla2x00_abort_isp,
1581};
1582
1583static struct isp_operations qla2300_isp_ops = {
1584        .pci_config             = qla2300_pci_config,
1585        .reset_chip             = qla2x00_reset_chip,
1586        .chip_diag              = qla2x00_chip_diag,
1587        .config_rings           = qla2x00_config_rings,
1588        .reset_adapter          = qla2x00_reset_adapter,
1589        .nvram_config           = qla2x00_nvram_config,
1590        .update_fw_options      = qla2x00_update_fw_options,
1591        .load_risc              = qla2x00_load_risc,
1592        .pci_info_str           = qla2x00_pci_info_str,
1593        .fw_version_str         = qla2x00_fw_version_str,
1594        .intr_handler           = qla2300_intr_handler,
1595        .enable_intrs           = qla2x00_enable_intrs,
1596        .disable_intrs          = qla2x00_disable_intrs,
1597        .abort_command          = qla2x00_abort_command,
1598        .target_reset           = qla2x00_abort_target,
1599        .lun_reset              = qla2x00_lun_reset,
1600        .fabric_login           = qla2x00_login_fabric,
1601        .fabric_logout          = qla2x00_fabric_logout,
1602        .calc_req_entries       = qla2x00_calc_iocbs_32,
1603        .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1604        .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1605        .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1606        .read_nvram             = qla2x00_read_nvram_data,
1607        .write_nvram            = qla2x00_write_nvram_data,
1608        .fw_dump                = qla2300_fw_dump,
1609        .beacon_on              = qla2x00_beacon_on,
1610        .beacon_off             = qla2x00_beacon_off,
1611        .beacon_blink           = qla2x00_beacon_blink,
1612        .read_optrom            = qla2x00_read_optrom_data,
1613        .write_optrom           = qla2x00_write_optrom_data,
1614        .get_flash_version      = qla2x00_get_flash_version,
1615        .start_scsi             = qla2x00_start_scsi,
1616        .abort_isp              = qla2x00_abort_isp,
1617};
1618
1619static struct isp_operations qla24xx_isp_ops = {
1620        .pci_config             = qla24xx_pci_config,
1621        .reset_chip             = qla24xx_reset_chip,
1622        .chip_diag              = qla24xx_chip_diag,
1623        .config_rings           = qla24xx_config_rings,
1624        .reset_adapter          = qla24xx_reset_adapter,
1625        .nvram_config           = qla24xx_nvram_config,
1626        .update_fw_options      = qla24xx_update_fw_options,
1627        .load_risc              = qla24xx_load_risc,
1628        .pci_info_str           = qla24xx_pci_info_str,
1629        .fw_version_str         = qla24xx_fw_version_str,
1630        .intr_handler           = qla24xx_intr_handler,
1631        .enable_intrs           = qla24xx_enable_intrs,
1632        .disable_intrs          = qla24xx_disable_intrs,
1633        .abort_command          = qla24xx_abort_command,
1634        .target_reset           = qla24xx_abort_target,
1635        .lun_reset              = qla24xx_lun_reset,
1636        .fabric_login           = qla24xx_login_fabric,
1637        .fabric_logout          = qla24xx_fabric_logout,
1638        .calc_req_entries       = NULL,
1639        .build_iocbs            = NULL,
1640        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1641        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1642        .read_nvram             = qla24xx_read_nvram_data,
1643        .write_nvram            = qla24xx_write_nvram_data,
1644        .fw_dump                = qla24xx_fw_dump,
1645        .beacon_on              = qla24xx_beacon_on,
1646        .beacon_off             = qla24xx_beacon_off,
1647        .beacon_blink           = qla24xx_beacon_blink,
1648        .read_optrom            = qla24xx_read_optrom_data,
1649        .write_optrom           = qla24xx_write_optrom_data,
1650        .get_flash_version      = qla24xx_get_flash_version,
1651        .start_scsi             = qla24xx_start_scsi,
1652        .abort_isp              = qla2x00_abort_isp,
1653};
1654
1655static struct isp_operations qla25xx_isp_ops = {
1656        .pci_config             = qla25xx_pci_config,
1657        .reset_chip             = qla24xx_reset_chip,
1658        .chip_diag              = qla24xx_chip_diag,
1659        .config_rings           = qla24xx_config_rings,
1660        .reset_adapter          = qla24xx_reset_adapter,
1661        .nvram_config           = qla24xx_nvram_config,
1662        .update_fw_options      = qla24xx_update_fw_options,
1663        .load_risc              = qla24xx_load_risc,
1664        .pci_info_str           = qla24xx_pci_info_str,
1665        .fw_version_str         = qla24xx_fw_version_str,
1666        .intr_handler           = qla24xx_intr_handler,
1667        .enable_intrs           = qla24xx_enable_intrs,
1668        .disable_intrs          = qla24xx_disable_intrs,
1669        .abort_command          = qla24xx_abort_command,
1670        .target_reset           = qla24xx_abort_target,
1671        .lun_reset              = qla24xx_lun_reset,
1672        .fabric_login           = qla24xx_login_fabric,
1673        .fabric_logout          = qla24xx_fabric_logout,
1674        .calc_req_entries       = NULL,
1675        .build_iocbs            = NULL,
1676        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1677        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1678        .read_nvram             = qla25xx_read_nvram_data,
1679        .write_nvram            = qla25xx_write_nvram_data,
1680        .fw_dump                = qla25xx_fw_dump,
1681        .beacon_on              = qla24xx_beacon_on,
1682        .beacon_off             = qla24xx_beacon_off,
1683        .beacon_blink           = qla24xx_beacon_blink,
1684        .read_optrom            = qla25xx_read_optrom_data,
1685        .write_optrom           = qla24xx_write_optrom_data,
1686        .get_flash_version      = qla24xx_get_flash_version,
1687        .start_scsi             = qla24xx_dif_start_scsi,
1688        .abort_isp              = qla2x00_abort_isp,
1689};
1690
1691static struct isp_operations qla81xx_isp_ops = {
1692        .pci_config             = qla25xx_pci_config,
1693        .reset_chip             = qla24xx_reset_chip,
1694        .chip_diag              = qla24xx_chip_diag,
1695        .config_rings           = qla24xx_config_rings,
1696        .reset_adapter          = qla24xx_reset_adapter,
1697        .nvram_config           = qla81xx_nvram_config,
1698        .update_fw_options      = qla81xx_update_fw_options,
1699        .load_risc              = qla81xx_load_risc,
1700        .pci_info_str           = qla24xx_pci_info_str,
1701        .fw_version_str         = qla24xx_fw_version_str,
1702        .intr_handler           = qla24xx_intr_handler,
1703        .enable_intrs           = qla24xx_enable_intrs,
1704        .disable_intrs          = qla24xx_disable_intrs,
1705        .abort_command          = qla24xx_abort_command,
1706        .target_reset           = qla24xx_abort_target,
1707        .lun_reset              = qla24xx_lun_reset,
1708        .fabric_login           = qla24xx_login_fabric,
1709        .fabric_logout          = qla24xx_fabric_logout,
1710        .calc_req_entries       = NULL,
1711        .build_iocbs            = NULL,
1712        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1713        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1714        .read_nvram             = NULL,
1715        .write_nvram            = NULL,
1716        .fw_dump                = qla81xx_fw_dump,
1717        .beacon_on              = qla24xx_beacon_on,
1718        .beacon_off             = qla24xx_beacon_off,
1719        .beacon_blink           = qla24xx_beacon_blink,
1720        .read_optrom            = qla25xx_read_optrom_data,
1721        .write_optrom           = qla24xx_write_optrom_data,
1722        .get_flash_version      = qla24xx_get_flash_version,
1723        .start_scsi             = qla24xx_dif_start_scsi,
1724        .abort_isp              = qla2x00_abort_isp,
1725};
1726
1727static struct isp_operations qla82xx_isp_ops = {
1728        .pci_config             = qla82xx_pci_config,
1729        .reset_chip             = qla82xx_reset_chip,
1730        .chip_diag              = qla24xx_chip_diag,
1731        .config_rings           = qla82xx_config_rings,
1732        .reset_adapter          = qla24xx_reset_adapter,
1733        .nvram_config           = qla81xx_nvram_config,
1734        .update_fw_options      = qla24xx_update_fw_options,
1735        .load_risc              = qla82xx_load_risc,
1736        .pci_info_str           = qla82xx_pci_info_str,
1737        .fw_version_str         = qla24xx_fw_version_str,
1738        .intr_handler           = qla82xx_intr_handler,
1739        .enable_intrs           = qla82xx_enable_intrs,
1740        .disable_intrs          = qla82xx_disable_intrs,
1741        .abort_command          = qla24xx_abort_command,
1742        .target_reset           = qla24xx_abort_target,
1743        .lun_reset              = qla24xx_lun_reset,
1744        .fabric_login           = qla24xx_login_fabric,
1745        .fabric_logout          = qla24xx_fabric_logout,
1746        .calc_req_entries       = NULL,
1747        .build_iocbs            = NULL,
1748        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1749        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1750        .read_nvram             = qla24xx_read_nvram_data,
1751        .write_nvram            = qla24xx_write_nvram_data,
1752        .fw_dump                = qla24xx_fw_dump,
1753        .beacon_on              = qla24xx_beacon_on,
1754        .beacon_off             = qla24xx_beacon_off,
1755        .beacon_blink           = qla24xx_beacon_blink,
1756        .read_optrom            = qla82xx_read_optrom_data,
1757        .write_optrom           = qla82xx_write_optrom_data,
1758        .get_flash_version      = qla24xx_get_flash_version,
1759        .start_scsi             = qla82xx_start_scsi,
1760        .abort_isp              = qla82xx_abort_isp,
1761};
1762
1763static inline void
1764qla2x00_set_isp_flags(struct qla_hw_data *ha)
1765{
1766        ha->device_type = DT_EXTENDED_IDS;
1767        switch (ha->pdev->device) {
1768        case PCI_DEVICE_ID_QLOGIC_ISP2100:
1769                ha->device_type |= DT_ISP2100;
1770                ha->device_type &= ~DT_EXTENDED_IDS;
1771                ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1772                break;
1773        case PCI_DEVICE_ID_QLOGIC_ISP2200:
1774                ha->device_type |= DT_ISP2200;
1775                ha->device_type &= ~DT_EXTENDED_IDS;
1776                ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1777                break;
1778        case PCI_DEVICE_ID_QLOGIC_ISP2300:
1779                ha->device_type |= DT_ISP2300;
1780                ha->device_type |= DT_ZIO_SUPPORTED;
1781                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1782                break;
1783        case PCI_DEVICE_ID_QLOGIC_ISP2312:
1784                ha->device_type |= DT_ISP2312;
1785                ha->device_type |= DT_ZIO_SUPPORTED;
1786                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1787                break;
1788        case PCI_DEVICE_ID_QLOGIC_ISP2322:
1789                ha->device_type |= DT_ISP2322;
1790                ha->device_type |= DT_ZIO_SUPPORTED;
1791                if (ha->pdev->subsystem_vendor == 0x1028 &&
1792                    ha->pdev->subsystem_device == 0x0170)
1793                        ha->device_type |= DT_OEM_001;
1794                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1795                break;
1796        case PCI_DEVICE_ID_QLOGIC_ISP6312:
1797                ha->device_type |= DT_ISP6312;
1798                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1799                break;
1800        case PCI_DEVICE_ID_QLOGIC_ISP6322:
1801                ha->device_type |= DT_ISP6322;
1802                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1803                break;
1804        case PCI_DEVICE_ID_QLOGIC_ISP2422:
1805                ha->device_type |= DT_ISP2422;
1806                ha->device_type |= DT_ZIO_SUPPORTED;
1807                ha->device_type |= DT_FWI2;
1808                ha->device_type |= DT_IIDMA;
1809                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1810                break;
1811        case PCI_DEVICE_ID_QLOGIC_ISP2432:
1812                ha->device_type |= DT_ISP2432;
1813                ha->device_type |= DT_ZIO_SUPPORTED;
1814                ha->device_type |= DT_FWI2;
1815                ha->device_type |= DT_IIDMA;
1816                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1817                break;
1818        case PCI_DEVICE_ID_QLOGIC_ISP8432:
1819                ha->device_type |= DT_ISP8432;
1820                ha->device_type |= DT_ZIO_SUPPORTED;
1821                ha->device_type |= DT_FWI2;
1822                ha->device_type |= DT_IIDMA;
1823                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1824                break;
1825        case PCI_DEVICE_ID_QLOGIC_ISP5422:
1826                ha->device_type |= DT_ISP5422;
1827                ha->device_type |= DT_FWI2;
1828                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1829                break;
1830        case PCI_DEVICE_ID_QLOGIC_ISP5432:
1831                ha->device_type |= DT_ISP5432;
1832                ha->device_type |= DT_FWI2;
1833                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1834                break;
1835        case PCI_DEVICE_ID_QLOGIC_ISP2532:
1836                ha->device_type |= DT_ISP2532;
1837                ha->device_type |= DT_ZIO_SUPPORTED;
1838                ha->device_type |= DT_FWI2;
1839                ha->device_type |= DT_IIDMA;
1840                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1841                break;
1842        case PCI_DEVICE_ID_QLOGIC_ISP8001:
1843                ha->device_type |= DT_ISP8001;
1844                ha->device_type |= DT_ZIO_SUPPORTED;
1845                ha->device_type |= DT_FWI2;
1846                ha->device_type |= DT_IIDMA;
1847                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1848                break;
1849        case PCI_DEVICE_ID_QLOGIC_ISP8021:
1850                ha->device_type |= DT_ISP8021;
1851                ha->device_type |= DT_ZIO_SUPPORTED;
1852                ha->device_type |= DT_FWI2;
1853                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1854                /* Initialize 82XX ISP flags */
1855                qla82xx_init_flags(ha);
1856                break;
1857        }
1858
1859        if (IS_QLA82XX(ha))
1860                ha->port_no = !(ha->portnum & 1);
1861        else
1862                /* Get adapter physical port no from interrupt pin register. */
1863                pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1864
1865        if (ha->port_no & 1)
1866                ha->flags.port0 = 1;
1867        else
1868                ha->flags.port0 = 0;
1869        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
1870            "device_type=0x%x port=%d fw_srisc_address=%p.\n",
1871            ha->device_type, ha->flags.port0, ha->fw_srisc_address);
1872}
1873
1874static int
1875qla2x00_iospace_config(struct qla_hw_data *ha)
1876{
1877        resource_size_t pio;
1878        uint16_t msix;
1879        int cpus;
1880
1881        if (IS_QLA82XX(ha))
1882                return qla82xx_iospace_config(ha);
1883
1884        if (pci_request_selected_regions(ha->pdev, ha->bars,
1885            QLA2XXX_DRIVER_NAME)) {
1886                ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1887                    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1888                    pci_name(ha->pdev));
1889                goto iospace_error_exit;
1890        }
1891        if (!(ha->bars & 1))
1892                goto skip_pio;
1893
1894        /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1895        pio = pci_resource_start(ha->pdev, 0);
1896        if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1897                if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1898                        ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1899                            "Invalid pci I/O region size (%s).\n",
1900                            pci_name(ha->pdev));
1901                        pio = 0;
1902                }
1903        } else {
1904                ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1905                    "Region #0 no a PIO resource (%s).\n",
1906                    pci_name(ha->pdev));
1907                pio = 0;
1908        }
1909        ha->pio_address = pio;
1910        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1911            "PIO address=%p.\n",
1912            ha->pio_address);
1913
1914skip_pio:
1915        /* Use MMIO operations for all accesses. */
1916        if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1917                ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1918                    "Region #1 not an MMIO resource (%s), aborting.\n",
1919                    pci_name(ha->pdev));
1920                goto iospace_error_exit;
1921        }
1922        if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1923                ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1924                    "Invalid PCI mem region size (%s), aborting.\n",
1925                    pci_name(ha->pdev));
1926                goto iospace_error_exit;
1927        }
1928
1929        ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1930        if (!ha->iobase) {
1931                ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1932                    "Cannot remap MMIO (%s), aborting.\n",
1933                    pci_name(ha->pdev));
1934                goto iospace_error_exit;
1935        }
1936
1937        /* Determine queue resources */
1938        ha->max_req_queues = ha->max_rsp_queues = 1;
1939        if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1940                (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1941                (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1942                goto mqiobase_exit;
1943
1944        ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1945                        pci_resource_len(ha->pdev, 3));
1946        if (ha->mqiobase) {
1947                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1948                    "MQIO Base=%p.\n", ha->mqiobase);
1949                /* Read MSIX vector size of the board */
1950                pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1951                ha->msix_count = msix;
1952                /* Max queues are bounded by available msix vectors */
1953                /* queue 0 uses two msix vectors */
1954                if (ql2xmultique_tag) {
1955                        cpus = num_online_cpus();
1956                        ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1957                                (cpus + 1) : (ha->msix_count - 1);
1958                        ha->max_req_queues = 2;
1959                } else if (ql2xmaxqueues > 1) {
1960                        ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1961                            QLA_MQ_SIZE : ql2xmaxqueues;
1962                        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1963                            "QoS mode set, max no of request queues:%d.\n",
1964                            ha->max_req_queues);
1965                        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1966                            "QoS mode set, max no of request queues:%d.\n",
1967                            ha->max_req_queues);
1968                }
1969                ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1970                    "MSI-X vector count: %d.\n", msix);
1971        } else
1972                ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1973                    "BAR 3 not enabled.\n");
1974
1975mqiobase_exit:
1976        ha->msix_count = ha->max_rsp_queues + 1;
1977        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1978            "MSIX Count:%d.\n", ha->msix_count);
1979        return (0);
1980
1981iospace_error_exit:
1982        return (-ENOMEM);
1983}
1984
1985static void
1986qla2xxx_scan_start(struct Scsi_Host *shost)
1987{
1988        scsi_qla_host_t *vha = shost_priv(shost);
1989
1990        if (vha->hw->flags.running_gold_fw)
1991                return;
1992
1993        set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1994        set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1995        set_bit(RSCN_UPDATE, &vha->dpc_flags);
1996        set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1997}
1998
1999static int
2000qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2001{
2002        scsi_qla_host_t *vha = shost_priv(shost);
2003
2004        if (!vha->host)
2005                return 1;
2006        if (time > vha->hw->loop_reset_delay * HZ)
2007                return 1;
2008
2009        return atomic_read(&vha->loop_state) == LOOP_READY;
2010}
2011
2012/*
2013 * PCI driver interface
2014 */
2015static int __devinit
2016qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2017{
2018        int     ret = -ENODEV;
2019        struct Scsi_Host *host;
2020        scsi_qla_host_t *base_vha = NULL;
2021        struct qla_hw_data *ha;
2022        char pci_info[30];
2023        char fw_str[30];
2024        struct scsi_host_template *sht;
2025        int bars, max_id, mem_only = 0;
2026        uint16_t req_length = 0, rsp_length = 0;
2027        struct req_que *req = NULL;
2028        struct rsp_que *rsp = NULL;
2029
2030        bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2031        sht = &qla2xxx_driver_template;
2032        if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2033            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2034            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2035            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2036            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2037            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2038            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2039            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
2040                bars = pci_select_bars(pdev, IORESOURCE_MEM);
2041                mem_only = 1;
2042                ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2043                    "Mem only adapter.\n");
2044        }
2045        ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2046            "Bars=%d.\n", bars);
2047
2048        if (mem_only) {
2049                if (pci_enable_device_mem(pdev))
2050                        goto probe_out;
2051        } else {
2052                if (pci_enable_device(pdev))
2053                        goto probe_out;
2054        }
2055
2056        /* This may fail but that's ok */
2057        pci_enable_pcie_error_reporting(pdev);
2058
2059        ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2060        if (!ha) {
2061                ql_log_pci(ql_log_fatal, pdev, 0x0009,
2062                    "Unable to allocate memory for ha.\n");
2063                goto probe_out;
2064        }
2065        ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2066            "Memory allocated for ha=%p.\n", ha);
2067        ha->pdev = pdev;
2068
2069        /* Clear our data area */
2070        ha->bars = bars;
2071        ha->mem_only = mem_only;
2072        spin_lock_init(&ha->hardware_lock);
2073        spin_lock_init(&ha->vport_slock);
2074
2075        /* Set ISP-type information. */
2076        qla2x00_set_isp_flags(ha);
2077
2078        /* Set EEH reset type to fundamental if required by hba */
2079        if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
2080                pdev->needs_freset = 1;
2081        }
2082
2083        /* Configure PCI I/O space */
2084        ret = qla2x00_iospace_config(ha);
2085        if (ret)
2086                goto probe_hw_failed;
2087
2088        ql_log_pci(ql_log_info, pdev, 0x001d,
2089            "Found an ISP%04X irq %d iobase 0x%p.\n",
2090            pdev->device, pdev->irq, ha->iobase);
2091        ha->prev_topology = 0;
2092        ha->init_cb_size = sizeof(init_cb_t);
2093        ha->link_data_rate = PORT_SPEED_UNKNOWN;
2094        ha->optrom_size = OPTROM_SIZE_2300;
2095
2096        /* Assign ISP specific operations. */
2097        max_id = MAX_TARGETS_2200;
2098        if (IS_QLA2100(ha)) {
2099                max_id = MAX_TARGETS_2100;
2100                ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2101                req_length = REQUEST_ENTRY_CNT_2100;
2102                rsp_length = RESPONSE_ENTRY_CNT_2100;
2103                ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2104                ha->gid_list_info_size = 4;
2105                ha->flash_conf_off = ~0;
2106                ha->flash_data_off = ~0;
2107                ha->nvram_conf_off = ~0;
2108                ha->nvram_data_off = ~0;
2109                ha->isp_ops = &qla2100_isp_ops;
2110        } else if (IS_QLA2200(ha)) {
2111                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2112                req_length = REQUEST_ENTRY_CNT_2200;
2113                rsp_length = RESPONSE_ENTRY_CNT_2100;
2114                ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2115                ha->gid_list_info_size = 4;
2116                ha->flash_conf_off = ~0;
2117                ha->flash_data_off = ~0;
2118                ha->nvram_conf_off = ~0;
2119                ha->nvram_data_off = ~0;
2120                ha->isp_ops = &qla2100_isp_ops;
2121        } else if (IS_QLA23XX(ha)) {
2122                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2123                req_length = REQUEST_ENTRY_CNT_2200;
2124                rsp_length = RESPONSE_ENTRY_CNT_2300;
2125                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2126                ha->gid_list_info_size = 6;
2127                if (IS_QLA2322(ha) || IS_QLA6322(ha))
2128                        ha->optrom_size = OPTROM_SIZE_2322;
2129                ha->flash_conf_off = ~0;
2130                ha->flash_data_off = ~0;
2131                ha->nvram_conf_off = ~0;
2132                ha->nvram_data_off = ~0;
2133                ha->isp_ops = &qla2300_isp_ops;
2134        } else if (IS_QLA24XX_TYPE(ha)) {
2135                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2136                req_length = REQUEST_ENTRY_CNT_24XX;
2137                rsp_length = RESPONSE_ENTRY_CNT_2300;
2138                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2139                ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2140                ha->gid_list_info_size = 8;
2141                ha->optrom_size = OPTROM_SIZE_24XX;
2142                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2143                ha->isp_ops = &qla24xx_isp_ops;
2144                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2145                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2146                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2147                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2148        } else if (IS_QLA25XX(ha)) {
2149                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2150                req_length = REQUEST_ENTRY_CNT_24XX;
2151                rsp_length = RESPONSE_ENTRY_CNT_2300;
2152                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2153                ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2154                ha->gid_list_info_size = 8;
2155                ha->optrom_size = OPTROM_SIZE_25XX;
2156                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2157                ha->isp_ops = &qla25xx_isp_ops;
2158                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2159                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2160                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2161                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2162        } else if (IS_QLA81XX(ha)) {
2163                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2164                req_length = REQUEST_ENTRY_CNT_24XX;
2165                rsp_length = RESPONSE_ENTRY_CNT_2300;
2166                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2167                ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2168                ha->gid_list_info_size = 8;
2169                ha->optrom_size = OPTROM_SIZE_81XX;
2170                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2171                ha->isp_ops = &qla81xx_isp_ops;
2172                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2173                ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2174                ha->nvram_conf_off = ~0;
2175                ha->nvram_data_off = ~0;
2176        } else if (IS_QLA82XX(ha)) {
2177                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2178                req_length = REQUEST_ENTRY_CNT_82XX;
2179                rsp_length = RESPONSE_ENTRY_CNT_82XX;
2180                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2181                ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2182                ha->gid_list_info_size = 8;
2183                ha->optrom_size = OPTROM_SIZE_82XX;
2184                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2185                ha->isp_ops = &qla82xx_isp_ops;
2186                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2187                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2188                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2189                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2190        }
2191        ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2192            "mbx_count=%d, req_length=%d, "
2193            "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2194            "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, .\n",
2195            ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2196            ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2197            ha->nvram_npiv_size);
2198        ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2199            "isp_ops=%p, flash_conf_off=%d, "
2200            "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2201            ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2202            ha->nvram_conf_off, ha->nvram_data_off);
2203        mutex_init(&ha->vport_lock);
2204        init_completion(&ha->mbx_cmd_comp);
2205        complete(&ha->mbx_cmd_comp);
2206        init_completion(&ha->mbx_intr_comp);
2207        init_completion(&ha->dcbx_comp);
2208
2209        set_bit(0, (unsigned long *) ha->vp_idx_map);
2210
2211        qla2x00_config_dma_addressing(ha);
2212        ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2213            "64 Bit addressing is %s.\n",
2214            ha->flags.enable_64bit_addressing ? "enable" :
2215            "disable");
2216        ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2217        if (!ret) {
2218                ql_log_pci(ql_log_fatal, pdev, 0x0031,
2219                    "Failed to allocate memory for adapter, aborting.\n");
2220
2221                goto probe_hw_failed;
2222        }
2223
2224        req->max_q_depth = MAX_Q_DEPTH;
2225        if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2226                req->max_q_depth = ql2xmaxqdepth;
2227
2228
2229        base_vha = qla2x00_create_host(sht, ha);
2230        if (!base_vha) {
2231                ret = -ENOMEM;
2232                qla2x00_mem_free(ha);
2233                qla2x00_free_req_que(ha, req);
2234                qla2x00_free_rsp_que(ha, rsp);
2235                goto probe_hw_failed;
2236        }
2237
2238        pci_set_drvdata(pdev, base_vha);
2239
2240        host = base_vha->host;
2241        base_vha->req = req;
2242        host->can_queue = req->length + 128;
2243        if (IS_QLA2XXX_MIDTYPE(ha))
2244                base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2245        else
2246                base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2247                                                base_vha->vp_idx;
2248
2249        /* Set the SG table size based on ISP type */
2250        if (!IS_FWI2_CAPABLE(ha)) {
2251                if (IS_QLA2100(ha))
2252                        host->sg_tablesize = 32;
2253        } else {
2254                if (!IS_QLA82XX(ha))
2255                        host->sg_tablesize = QLA_SG_ALL;
2256        }
2257        ql_dbg(ql_dbg_init, base_vha, 0x0032,
2258            "can_queue=%d, req=%p, "
2259            "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2260            host->can_queue, base_vha->req,
2261            base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2262        host->max_id = max_id;
2263        host->this_id = 255;
2264        host->cmd_per_lun = 3;
2265        host->unique_id = host->host_no;
2266        if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2267                host->max_cmd_len = 32;
2268        else
2269                host->max_cmd_len = MAX_CMDSZ;
2270        host->max_channel = MAX_BUSES - 1;
2271        host->max_lun = ql2xmaxlun;
2272        host->transportt = qla2xxx_transport_template;
2273        sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2274
2275        ql_dbg(ql_dbg_init, base_vha, 0x0033,
2276            "max_id=%d this_id=%d "
2277            "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2278            "max_lun=%d transportt=%p, vendor_id=%d.\n", host->max_id,
2279            host->this_id, host->cmd_per_lun, host->unique_id,
2280            host->max_cmd_len, host->max_channel, host->max_lun,
2281            host->transportt, sht->vendor_id);
2282
2283        /* Set up the irqs */
2284        ret = qla2x00_request_irqs(ha, rsp);
2285        if (ret)
2286                goto probe_init_failed;
2287
2288        pci_save_state(pdev);
2289
2290        /* Alloc arrays of request and response ring ptrs */
2291que_init:
2292        if (!qla2x00_alloc_queues(ha)) {
2293                ql_log(ql_log_fatal, base_vha, 0x003d,
2294                    "Failed to allocate memory for queue pointers.. aborting.\n");
2295                goto probe_init_failed;
2296        }
2297
2298        ha->rsp_q_map[0] = rsp;
2299        ha->req_q_map[0] = req;
2300        rsp->req = req;
2301        req->rsp = rsp;
2302        set_bit(0, ha->req_qid_map);
2303        set_bit(0, ha->rsp_qid_map);
2304        /* FWI2-capable only. */
2305        req->req_q_in = &ha->iobase->isp24.req_q_in;
2306        req->req_q_out = &ha->iobase->isp24.req_q_out;
2307        rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2308        rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2309        if (ha->mqenable) {
2310                req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2311                req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2312                rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2313                rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2314        }
2315
2316        if (IS_QLA82XX(ha)) {
2317                req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2318                rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2319                rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2320        }
2321
2322        ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2323            "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2324            ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2325        ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2326            "req->req_q_in=%p req->req_q_out=%p "
2327            "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2328            req->req_q_in, req->req_q_out,
2329            rsp->rsp_q_in, rsp->rsp_q_out);
2330        ql_dbg(ql_dbg_init, base_vha, 0x003e,
2331            "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2332            ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2333        ql_dbg(ql_dbg_init, base_vha, 0x003f,
2334            "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2335            req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2336
2337        if (qla2x00_initialize_adapter(base_vha)) {
2338                ql_log(ql_log_fatal, base_vha, 0x00d6,
2339                    "Failed to initialize adapter - Adapter flags %x.\n",
2340                    base_vha->device_flags);
2341
2342                if (IS_QLA82XX(ha)) {
2343                        qla82xx_idc_lock(ha);
2344                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2345                                QLA82XX_DEV_FAILED);
2346                        qla82xx_idc_unlock(ha);
2347                        ql_log(ql_log_fatal, base_vha, 0x00d7,
2348                            "HW State: FAILED.\n");
2349                }
2350
2351                ret = -ENODEV;
2352                goto probe_failed;
2353        }
2354
2355        if (ha->mqenable) {
2356                if (qla25xx_setup_mode(base_vha)) {
2357                        ql_log(ql_log_warn, base_vha, 0x00ec,
2358                            "Failed to create queues, falling back to single queue mode.\n");
2359                        goto que_init;
2360                }
2361        }
2362
2363        if (ha->flags.running_gold_fw)
2364                goto skip_dpc;
2365
2366        /*
2367         * Startup the kernel thread for this host adapter
2368         */
2369        ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2370            "%s_dpc", base_vha->host_str);
2371        if (IS_ERR(ha->dpc_thread)) {
2372                ql_log(ql_log_fatal, base_vha, 0x00ed,
2373                    "Failed to start DPC thread.\n");
2374                ret = PTR_ERR(ha->dpc_thread);
2375                goto probe_failed;
2376        }
2377        ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2378            "DPC thread started successfully.\n");
2379
2380skip_dpc:
2381        list_add_tail(&base_vha->list, &ha->vp_list);
2382        base_vha->host->irq = ha->pdev->irq;
2383
2384        /* Initialized the timer */
2385        qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2386        ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2387            "Started qla2x00_timer with "
2388            "interval=%d.\n", WATCH_INTERVAL);
2389        ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2390            "Detected hba at address=%p.\n",
2391            ha);
2392
2393        if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2394                if (ha->fw_attributes & BIT_4) {
2395                        int prot = 0;
2396                        base_vha->flags.difdix_supported = 1;
2397                        ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2398                            "Registering for DIF/DIX type 1 and 3 protection.\n");
2399                        if (ql2xenabledif == 1)
2400                                prot = SHOST_DIX_TYPE0_PROTECTION;
2401                        scsi_host_set_prot(host,
2402                            prot | SHOST_DIF_TYPE1_PROTECTION
2403                            | SHOST_DIF_TYPE2_PROTECTION
2404                            | SHOST_DIF_TYPE3_PROTECTION
2405                            | SHOST_DIX_TYPE1_PROTECTION
2406                            | SHOST_DIX_TYPE2_PROTECTION
2407                            | SHOST_DIX_TYPE3_PROTECTION);
2408                        scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2409                } else
2410                        base_vha->flags.difdix_supported = 0;
2411        }
2412
2413        ha->isp_ops->enable_intrs(ha);
2414
2415        ret = scsi_add_host(host, &pdev->dev);
2416        if (ret)
2417                goto probe_failed;
2418
2419        base_vha->flags.init_done = 1;
2420        base_vha->flags.online = 1;
2421
2422        ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2423            "Init done and hba is online.\n");
2424
2425        scsi_scan_host(host);
2426
2427        qla2x00_alloc_sysfs_attr(base_vha);
2428
2429        qla2x00_init_host_attr(base_vha);
2430
2431        qla2x00_dfs_setup(base_vha);
2432
2433        ql_log(ql_log_info, base_vha, 0x00fa,
2434            "QLogic Fibre Channed HBA Driver: %s.\n",
2435            qla2x00_version_str);
2436        ql_log(ql_log_info, base_vha, 0x00fb,
2437            "QLogic %s - %s.\n",
2438            ha->model_number, ha->model_desc ? ha->model_desc : "");
2439        ql_log(ql_log_info, base_vha, 0x00fc,
2440            "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2441            pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2442            pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2443            base_vha->host_no,
2444            ha->isp_ops->fw_version_str(base_vha, fw_str));
2445
2446        return 0;
2447
2448probe_init_failed:
2449        qla2x00_free_req_que(ha, req);
2450        qla2x00_free_rsp_que(ha, rsp);
2451        ha->max_req_queues = ha->max_rsp_queues = 0;
2452
2453probe_failed:
2454        if (base_vha->timer_active)
2455                qla2x00_stop_timer(base_vha);
2456        base_vha->flags.online = 0;
2457        if (ha->dpc_thread) {
2458                struct task_struct *t = ha->dpc_thread;
2459
2460                ha->dpc_thread = NULL;
2461                kthread_stop(t);
2462        }
2463
2464        qla2x00_free_device(base_vha);
2465
2466        scsi_host_put(base_vha->host);
2467
2468probe_hw_failed:
2469        if (IS_QLA82XX(ha)) {
2470                qla82xx_idc_lock(ha);
2471                qla82xx_clear_drv_active(ha);
2472                qla82xx_idc_unlock(ha);
2473                iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2474                if (!ql2xdbwr)
2475                        iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2476        } else {
2477                if (ha->iobase)
2478                        iounmap(ha->iobase);
2479        }
2480        pci_release_selected_regions(ha->pdev, ha->bars);
2481        kfree(ha);
2482        ha = NULL;
2483
2484probe_out:
2485        pci_disable_device(pdev);
2486        return ret;
2487}
2488
2489static void
2490qla2x00_shutdown(struct pci_dev *pdev)
2491{
2492        scsi_qla_host_t *vha;
2493        struct qla_hw_data  *ha;
2494
2495        vha = pci_get_drvdata(pdev);
2496        ha = vha->hw;
2497
2498        /* Turn-off FCE trace */
2499        if (ha->flags.fce_enabled) {
2500                qla2x00_disable_fce_trace(vha, NULL, NULL);
2501                ha->flags.fce_enabled = 0;
2502        }
2503
2504        /* Turn-off EFT trace */
2505        if (ha->eft)
2506                qla2x00_disable_eft_trace(vha);
2507
2508        /* Stop currently executing firmware. */
2509        qla2x00_try_to_stop_firmware(vha);
2510
2511        /* Turn adapter off line */
2512        vha->flags.online = 0;
2513
2514        /* turn-off interrupts on the card */
2515        if (ha->interrupts_on) {
2516                vha->flags.init_done = 0;
2517                ha->isp_ops->disable_intrs(ha);
2518        }
2519
2520        qla2x00_free_irqs(vha);
2521
2522        qla2x00_free_fw_dump(ha);
2523}
2524
2525static void
2526qla2x00_remove_one(struct pci_dev *pdev)
2527{
2528        scsi_qla_host_t *base_vha, *vha;
2529        struct qla_hw_data  *ha;
2530        unsigned long flags;
2531
2532        base_vha = pci_get_drvdata(pdev);
2533        ha = base_vha->hw;
2534
2535        mutex_lock(&ha->vport_lock);
2536        while (ha->cur_vport_count) {
2537                struct Scsi_Host *scsi_host;
2538
2539                spin_lock_irqsave(&ha->vport_slock, flags);
2540
2541                BUG_ON(base_vha->list.next == &ha->vp_list);
2542                /* This assumes first entry in ha->vp_list is always base vha */
2543                vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2544                scsi_host = scsi_host_get(vha->host);
2545
2546                spin_unlock_irqrestore(&ha->vport_slock, flags);
2547                mutex_unlock(&ha->vport_lock);
2548
2549                fc_vport_terminate(vha->fc_vport);
2550                scsi_host_put(vha->host);
2551
2552                mutex_lock(&ha->vport_lock);
2553        }
2554        mutex_unlock(&ha->vport_lock);
2555
2556        set_bit(UNLOADING, &base_vha->dpc_flags);
2557
2558        qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2559
2560        qla2x00_dfs_remove(base_vha);
2561
2562        qla84xx_put_chip(base_vha);
2563
2564        /* Disable timer */
2565        if (base_vha->timer_active)
2566                qla2x00_stop_timer(base_vha);
2567
2568        base_vha->flags.online = 0;
2569
2570        /* Flush the work queue and remove it */
2571        if (ha->wq) {
2572                flush_workqueue(ha->wq);
2573                destroy_workqueue(ha->wq);
2574                ha->wq = NULL;
2575        }
2576
2577        /* Kill the kernel thread for this host */
2578        if (ha->dpc_thread) {
2579                struct task_struct *t = ha->dpc_thread;
2580
2581                /*
2582                 * qla2xxx_wake_dpc checks for ->dpc_thread
2583                 * so we need to zero it out.
2584                 */
2585                ha->dpc_thread = NULL;
2586                kthread_stop(t);
2587        }
2588
2589        qla2x00_free_sysfs_attr(base_vha);
2590
2591        fc_remove_host(base_vha->host);
2592
2593        scsi_remove_host(base_vha->host);
2594
2595        qla2x00_free_device(base_vha);
2596
2597        scsi_host_put(base_vha->host);
2598
2599        if (IS_QLA82XX(ha)) {
2600                qla82xx_idc_lock(ha);
2601                qla82xx_clear_drv_active(ha);
2602                qla82xx_idc_unlock(ha);
2603
2604                iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2605                if (!ql2xdbwr)
2606                        iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2607        } else {
2608                if (ha->iobase)
2609                        iounmap(ha->iobase);
2610
2611                if (ha->mqiobase)
2612                        iounmap(ha->mqiobase);
2613        }
2614
2615        pci_release_selected_regions(ha->pdev, ha->bars);
2616        kfree(ha);
2617        ha = NULL;
2618
2619        pci_disable_pcie_error_reporting(pdev);
2620
2621        pci_disable_device(pdev);
2622        pci_set_drvdata(pdev, NULL);
2623}
2624
2625static void
2626qla2x00_free_device(scsi_qla_host_t *vha)
2627{
2628        struct qla_hw_data *ha = vha->hw;
2629
2630        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2631
2632        /* Disable timer */
2633        if (vha->timer_active)
2634                qla2x00_stop_timer(vha);
2635
2636        /* Kill the kernel thread for this host */
2637        if (ha->dpc_thread) {
2638                struct task_struct *t = ha->dpc_thread;
2639
2640                /*
2641                 * qla2xxx_wake_dpc checks for ->dpc_thread
2642                 * so we need to zero it out.
2643                 */
2644                ha->dpc_thread = NULL;
2645                kthread_stop(t);
2646        }
2647
2648        qla25xx_delete_queues(vha);
2649
2650        if (ha->flags.fce_enabled)
2651                qla2x00_disable_fce_trace(vha, NULL, NULL);
2652
2653        if (ha->eft)
2654                qla2x00_disable_eft_trace(vha);
2655
2656        /* Stop currently executing firmware. */
2657        qla2x00_try_to_stop_firmware(vha);
2658
2659        vha->flags.online = 0;
2660
2661        /* turn-off interrupts on the card */
2662        if (ha->interrupts_on) {
2663                vha->flags.init_done = 0;
2664                ha->isp_ops->disable_intrs(ha);
2665        }
2666
2667        qla2x00_free_irqs(vha);
2668
2669        qla2x00_free_fcports(vha);
2670
2671        qla2x00_mem_free(ha);
2672
2673        qla2x00_free_queues(ha);
2674}
2675
2676void qla2x00_free_fcports(struct scsi_qla_host *vha)
2677{
2678        fc_port_t *fcport, *tfcport;
2679
2680        list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2681                list_del(&fcport->list);
2682                kfree(fcport);
2683                fcport = NULL;
2684        }
2685}
2686
2687static inline void
2688qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2689    int defer)
2690{
2691        struct fc_rport *rport;
2692        scsi_qla_host_t *base_vha;
2693        unsigned long flags;
2694
2695        if (!fcport->rport)
2696                return;
2697
2698        rport = fcport->rport;
2699        if (defer) {
2700                base_vha = pci_get_drvdata(vha->hw->pdev);
2701                spin_lock_irqsave(vha->host->host_lock, flags);
2702                fcport->drport = rport;
2703                spin_unlock_irqrestore(vha->host->host_lock, flags);
2704                set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2705                qla2xxx_wake_dpc(base_vha);
2706        } else
2707                fc_remote_port_delete(rport);
2708}
2709
2710/*
2711 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2712 *
2713 * Input: ha = adapter block pointer.  fcport = port structure pointer.
2714 *
2715 * Return: None.
2716 *
2717 * Context:
2718 */
2719void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2720    int do_login, int defer)
2721{
2722        if (atomic_read(&fcport->state) == FCS_ONLINE &&
2723            vha->vp_idx == fcport->vp_idx) {
2724                qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2725                qla2x00_schedule_rport_del(vha, fcport, defer);
2726        }
2727        /*
2728         * We may need to retry the login, so don't change the state of the
2729         * port but do the retries.
2730         */
2731        if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2732                qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2733
2734        if (!do_login)
2735                return;
2736
2737        if (fcport->login_retry == 0) {
2738                fcport->login_retry = vha->hw->login_retry_count;
2739                set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2740
2741                ql_dbg(ql_dbg_disc, vha, 0x2067,
2742                    "Port login retry "
2743                    "%02x%02x%02x%02x%02x%02x%02x%02x, "
2744                    "id = 0x%04x retry cnt=%d.\n",
2745                    fcport->port_name[0], fcport->port_name[1],
2746                    fcport->port_name[2], fcport->port_name[3],
2747                    fcport->port_name[4], fcport->port_name[5],
2748                    fcport->port_name[6], fcport->port_name[7],
2749                    fcport->loop_id, fcport->login_retry);
2750        }
2751}
2752
2753/*
2754 * qla2x00_mark_all_devices_lost
2755 *      Updates fcport state when device goes offline.
2756 *
2757 * Input:
2758 *      ha = adapter block pointer.
2759 *      fcport = port structure pointer.
2760 *
2761 * Return:
2762 *      None.
2763 *
2764 * Context:
2765 */
2766void
2767qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2768{
2769        fc_port_t *fcport;
2770
2771        list_for_each_entry(fcport, &vha->vp_fcports, list) {
2772                if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2773                        continue;
2774
2775                /*
2776                 * No point in marking the device as lost, if the device is
2777                 * already DEAD.
2778                 */
2779                if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2780                        continue;
2781                if (atomic_read(&fcport->state) == FCS_ONLINE) {
2782                        qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2783                        if (defer)
2784                                qla2x00_schedule_rport_del(vha, fcport, defer);
2785                        else if (vha->vp_idx == fcport->vp_idx)
2786                                qla2x00_schedule_rport_del(vha, fcport, defer);
2787                }
2788        }
2789}
2790
2791/*
2792* qla2x00_mem_alloc
2793*      Allocates adapter memory.
2794*
2795* Returns:
2796*      0  = success.
2797*      !0  = failure.
2798*/
2799static int
2800qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2801        struct req_que **req, struct rsp_que **rsp)
2802{
2803        char    name[16];
2804
2805        ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2806                &ha->init_cb_dma, GFP_KERNEL);
2807        if (!ha->init_cb)
2808                goto fail;
2809
2810        ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2811                &ha->gid_list_dma, GFP_KERNEL);
2812        if (!ha->gid_list)
2813                goto fail_free_init_cb;
2814
2815        ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2816        if (!ha->srb_mempool)
2817                goto fail_free_gid_list;
2818
2819        if (IS_QLA82XX(ha)) {
2820                /* Allocate cache for CT6 Ctx. */
2821                if (!ctx_cachep) {
2822                        ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2823                                sizeof(struct ct6_dsd), 0,
2824                                SLAB_HWCACHE_ALIGN, NULL);
2825                        if (!ctx_cachep)
2826                                goto fail_free_gid_list;
2827                }
2828                ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2829                        ctx_cachep);
2830                if (!ha->ctx_mempool)
2831                        goto fail_free_srb_mempool;
2832                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
2833                    "ctx_cachep=%p ctx_mempool=%p.\n",
2834                    ctx_cachep, ha->ctx_mempool);
2835        }
2836
2837        /* Get memory for cached NVRAM */
2838        ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2839        if (!ha->nvram)
2840                goto fail_free_ctx_mempool;
2841
2842        snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2843                ha->pdev->device);
2844        ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2845                DMA_POOL_SIZE, 8, 0);
2846        if (!ha->s_dma_pool)
2847                goto fail_free_nvram;
2848
2849        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
2850            "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
2851            ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
2852
2853        if (IS_QLA82XX(ha) || ql2xenabledif) {
2854                ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2855                        DSD_LIST_DMA_POOL_SIZE, 8, 0);
2856                if (!ha->dl_dma_pool) {
2857                        ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
2858                            "Failed to allocate memory for dl_dma_pool.\n");
2859                        goto fail_s_dma_pool;
2860                }
2861
2862                ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2863                        FCP_CMND_DMA_POOL_SIZE, 8, 0);
2864                if (!ha->fcp_cmnd_dma_pool) {
2865                        ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
2866                            "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
2867                        goto fail_dl_dma_pool;
2868                }
2869                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
2870                    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
2871                    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
2872        }
2873
2874        /* Allocate memory for SNS commands */
2875        if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2876        /* Get consistent memory allocated for SNS commands */
2877                ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2878                sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2879                if (!ha->sns_cmd)
2880                        goto fail_dma_pool;
2881                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
2882                    "sns_cmd.\n", ha->sns_cmd);
2883        } else {
2884        /* Get consistent memory allocated for MS IOCB */
2885                ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2886                        &ha->ms_iocb_dma);
2887                if (!ha->ms_iocb)
2888                        goto fail_dma_pool;
2889        /* Get consistent memory allocated for CT SNS commands */
2890                ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2891                        sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2892                if (!ha->ct_sns)
2893                        goto fail_free_ms_iocb;
2894                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
2895                    "ms_iocb=%p ct_sns=%p.\n",
2896                    ha->ms_iocb, ha->ct_sns);
2897        }
2898
2899        /* Allocate memory for request ring */
2900        *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2901        if (!*req) {
2902                ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
2903                    "Failed to allocate memory for req.\n");
2904                goto fail_req;
2905        }
2906        (*req)->length = req_len;
2907        (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2908                ((*req)->length + 1) * sizeof(request_t),
2909                &(*req)->dma, GFP_KERNEL);
2910        if (!(*req)->ring) {
2911                ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
2912                    "Failed to allocate memory for req_ring.\n");
2913                goto fail_req_ring;
2914        }
2915        /* Allocate memory for response ring */
2916        *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2917        if (!*rsp) {
2918                ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
2919                    "Failed to allocate memory for rsp.\n");
2920                goto fail_rsp;
2921        }
2922        (*rsp)->hw = ha;
2923        (*rsp)->length = rsp_len;
2924        (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2925                ((*rsp)->length + 1) * sizeof(response_t),
2926                &(*rsp)->dma, GFP_KERNEL);
2927        if (!(*rsp)->ring) {
2928                ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
2929                    "Failed to allocate memory for rsp_ring.\n");
2930                goto fail_rsp_ring;
2931        }
2932        (*req)->rsp = *rsp;
2933        (*rsp)->req = *req;
2934        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
2935            "req=%p req->length=%d req->ring=%p rsp=%p "
2936            "rsp->length=%d rsp->ring=%p.\n",
2937            *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
2938            (*rsp)->ring);
2939        /* Allocate memory for NVRAM data for vports */
2940        if (ha->nvram_npiv_size) {
2941                ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2942                    ha->nvram_npiv_size, GFP_KERNEL);
2943                if (!ha->npiv_info) {
2944                        ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
2945                            "Failed to allocate memory for npiv_info.\n");
2946                        goto fail_npiv_info;
2947                }
2948        } else
2949                ha->npiv_info = NULL;
2950
2951        /* Get consistent memory allocated for EX-INIT-CB. */
2952        if (IS_QLA8XXX_TYPE(ha)) {
2953                ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2954                    &ha->ex_init_cb_dma);
2955                if (!ha->ex_init_cb)
2956                        goto fail_ex_init_cb;
2957                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
2958                    "ex_init_cb=%p.\n", ha->ex_init_cb);
2959        }
2960
2961        INIT_LIST_HEAD(&ha->gbl_dsd_list);
2962
2963        /* Get consistent memory allocated for Async Port-Database. */
2964        if (!IS_FWI2_CAPABLE(ha)) {
2965                ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2966                        &ha->async_pd_dma);
2967                if (!ha->async_pd)
2968                        goto fail_async_pd;
2969                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
2970                    "async_pd=%p.\n", ha->async_pd);
2971        }
2972
2973        INIT_LIST_HEAD(&ha->vp_list);
2974        return 1;
2975
2976fail_async_pd:
2977        dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2978fail_ex_init_cb:
2979        kfree(ha->npiv_info);
2980fail_npiv_info:
2981        dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2982                sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2983        (*rsp)->ring = NULL;
2984        (*rsp)->dma = 0;
2985fail_rsp_ring:
2986        kfree(*rsp);
2987fail_rsp:
2988        dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2989                sizeof(request_t), (*req)->ring, (*req)->dma);
2990        (*req)->ring = NULL;
2991        (*req)->dma = 0;
2992fail_req_ring:
2993        kfree(*req);
2994fail_req:
2995        dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2996                ha->ct_sns, ha->ct_sns_dma);
2997        ha->ct_sns = NULL;
2998        ha->ct_sns_dma = 0;
2999fail_free_ms_iocb:
3000        dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3001        ha->ms_iocb = NULL;
3002        ha->ms_iocb_dma = 0;
3003fail_dma_pool:
3004        if (IS_QLA82XX(ha) || ql2xenabledif) {
3005                dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3006                ha->fcp_cmnd_dma_pool = NULL;
3007        }
3008fail_dl_dma_pool:
3009        if (IS_QLA82XX(ha) || ql2xenabledif) {
3010                dma_pool_destroy(ha->dl_dma_pool);
3011                ha->dl_dma_pool = NULL;
3012        }
3013fail_s_dma_pool:
3014        dma_pool_destroy(ha->s_dma_pool);
3015        ha->s_dma_pool = NULL;
3016fail_free_nvram:
3017        kfree(ha->nvram);
3018        ha->nvram = NULL;
3019fail_free_ctx_mempool:
3020        mempool_destroy(ha->ctx_mempool);
3021        ha->ctx_mempool = NULL;
3022fail_free_srb_mempool:
3023        mempool_destroy(ha->srb_mempool);
3024        ha->srb_mempool = NULL;
3025fail_free_gid_list:
3026        dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
3027        ha->gid_list_dma);
3028        ha->gid_list = NULL;
3029        ha->gid_list_dma = 0;
3030fail_free_init_cb:
3031        dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
3032        ha->init_cb_dma);
3033        ha->init_cb = NULL;
3034        ha->init_cb_dma = 0;
3035fail:
3036        ql_log(ql_log_fatal, NULL, 0x0030,
3037            "Memory allocation failure.\n");
3038        return -ENOMEM;
3039}
3040
3041/*
3042* qla2x00_free_fw_dump
3043*       Frees fw dump stuff.
3044*
3045* Input:
3046*       ha = adapter block pointer.
3047*/
3048static void
3049qla2x00_free_fw_dump(struct qla_hw_data *ha)
3050{
3051        if (ha->fce)
3052                dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
3053                    ha->fce_dma);
3054
3055        if (ha->fw_dump) {
3056                if (ha->eft)
3057                        dma_free_coherent(&ha->pdev->dev,
3058                            ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3059                vfree(ha->fw_dump);
3060        }
3061        ha->fce = NULL;
3062        ha->fce_dma = 0;
3063        ha->eft = NULL;
3064        ha->eft_dma = 0;
3065        ha->fw_dump = NULL;
3066        ha->fw_dumped = 0;
3067        ha->fw_dump_reading = 0;
3068}
3069
3070/*
3071* qla2x00_mem_free
3072*      Frees all adapter allocated memory.
3073*
3074* Input:
3075*      ha = adapter block pointer.
3076*/
3077static void
3078qla2x00_mem_free(struct qla_hw_data *ha)
3079{
3080        qla2x00_free_fw_dump(ha);
3081
3082        if (ha->srb_mempool)
3083                mempool_destroy(ha->srb_mempool);
3084
3085        if (ha->dcbx_tlv)
3086                dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3087                    ha->dcbx_tlv, ha->dcbx_tlv_dma);
3088
3089        if (ha->xgmac_data)
3090                dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3091                    ha->xgmac_data, ha->xgmac_data_dma);
3092
3093        if (ha->sns_cmd)
3094                dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3095                ha->sns_cmd, ha->sns_cmd_dma);
3096
3097        if (ha->ct_sns)
3098                dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3099                ha->ct_sns, ha->ct_sns_dma);
3100
3101        if (ha->sfp_data)
3102                dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3103
3104        if (ha->edc_data)
3105                dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
3106
3107        if (ha->ms_iocb)
3108                dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3109
3110        if (ha->ex_init_cb)
3111                dma_pool_free(ha->s_dma_pool,
3112                        ha->ex_init_cb, ha->ex_init_cb_dma);
3113
3114        if (ha->async_pd)
3115                dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3116
3117        if (ha->s_dma_pool)
3118                dma_pool_destroy(ha->s_dma_pool);
3119
3120        if (ha->gid_list)
3121                dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
3122                ha->gid_list_dma);
3123
3124        if (IS_QLA82XX(ha)) {
3125                if (!list_empty(&ha->gbl_dsd_list)) {
3126                        struct dsd_dma *dsd_ptr, *tdsd_ptr;
3127
3128                        /* clean up allocated prev pool */
3129                        list_for_each_entry_safe(dsd_ptr,
3130                                tdsd_ptr, &ha->gbl_dsd_list, list) {
3131                                dma_pool_free(ha->dl_dma_pool,
3132                                dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3133                                list_del(&dsd_ptr->list);
3134                                kfree(dsd_ptr);
3135                        }
3136                }
3137        }
3138
3139        if (ha->dl_dma_pool)
3140                dma_pool_destroy(ha->dl_dma_pool);
3141
3142        if (ha->fcp_cmnd_dma_pool)
3143                dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3144
3145        if (ha->ctx_mempool)
3146                mempool_destroy(ha->ctx_mempool);
3147
3148        if (ha->init_cb)
3149                dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3150                        ha->init_cb, ha->init_cb_dma);
3151        vfree(ha->optrom_buffer);
3152        kfree(ha->nvram);
3153        kfree(ha->npiv_info);
3154
3155        ha->srb_mempool = NULL;
3156        ha->ctx_mempool = NULL;
3157        ha->sns_cmd = NULL;
3158        ha->sns_cmd_dma = 0;
3159        ha->ct_sns = NULL;
3160        ha->ct_sns_dma = 0;
3161        ha->ms_iocb = NULL;
3162        ha->ms_iocb_dma = 0;
3163        ha->init_cb = NULL;
3164        ha->init_cb_dma = 0;
3165        ha->ex_init_cb = NULL;
3166        ha->ex_init_cb_dma = 0;
3167        ha->async_pd = NULL;
3168        ha->async_pd_dma = 0;
3169
3170        ha->s_dma_pool = NULL;
3171        ha->dl_dma_pool = NULL;
3172        ha->fcp_cmnd_dma_pool = NULL;
3173
3174        ha->gid_list = NULL;
3175        ha->gid_list_dma = 0;
3176}
3177
3178struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3179                                                struct qla_hw_data *ha)
3180{
3181        struct Scsi_Host *host;
3182        struct scsi_qla_host *vha = NULL;
3183
3184        host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3185        if (host == NULL) {
3186                ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3187                    "Failed to allocate host from the scsi layer, aborting.\n");
3188                goto fail;
3189        }
3190
3191        /* Clear our data area */
3192        vha = shost_priv(host);
3193        memset(vha, 0, sizeof(scsi_qla_host_t));
3194
3195        vha->host = host;
3196        vha->host_no = host->host_no;
3197        vha->hw = ha;
3198
3199        INIT_LIST_HEAD(&vha->vp_fcports);
3200        INIT_LIST_HEAD(&vha->work_list);
3201        INIT_LIST_HEAD(&vha->list);
3202
3203        spin_lock_init(&vha->work_lock);
3204
3205        sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3206        ql_dbg(ql_dbg_init, vha, 0x0041,
3207            "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3208            vha->host, vha->hw, vha,
3209            dev_name(&(ha->pdev->dev)));
3210
3211        return vha;
3212
3213fail:
3214        return vha;
3215}
3216
3217static struct qla_work_evt *
3218qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3219{
3220        struct qla_work_evt *e;
3221        uint8_t bail;
3222
3223        QLA_VHA_MARK_BUSY(vha, bail);
3224        if (bail)
3225                return NULL;
3226
3227        e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3228        if (!e) {
3229                QLA_VHA_MARK_NOT_BUSY(vha);
3230                return NULL;
3231        }
3232
3233        INIT_LIST_HEAD(&e->list);
3234        e->type = type;
3235        e->flags = QLA_EVT_FLAG_FREE;
3236        return e;
3237}
3238
3239static int
3240qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3241{
3242        unsigned long flags;
3243
3244        spin_lock_irqsave(&vha->work_lock, flags);
3245        list_add_tail(&e->list, &vha->work_list);
3246        spin_unlock_irqrestore(&vha->work_lock, flags);
3247        qla2xxx_wake_dpc(vha);
3248
3249        return QLA_SUCCESS;
3250}
3251
3252int
3253qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3254    u32 data)
3255{
3256        struct qla_work_evt *e;
3257
3258        e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3259        if (!e)
3260                return QLA_FUNCTION_FAILED;
3261
3262        e->u.aen.code = code;
3263        e->u.aen.data = data;
3264        return qla2x00_post_work(vha, e);
3265}
3266
3267int
3268qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3269{
3270        struct qla_work_evt *e;
3271
3272        e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3273        if (!e)
3274                return QLA_FUNCTION_FAILED;
3275
3276        memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3277        return qla2x00_post_work(vha, e);
3278}
3279
3280#define qla2x00_post_async_work(name, type)     \
3281int qla2x00_post_async_##name##_work(           \
3282    struct scsi_qla_host *vha,                  \
3283    fc_port_t *fcport, uint16_t *data)          \
3284{                                               \
3285        struct qla_work_evt *e;                 \
3286                                                \
3287        e = qla2x00_alloc_work(vha, type);      \
3288        if (!e)                                 \
3289                return QLA_FUNCTION_FAILED;     \
3290                                                \
3291        e->u.logio.fcport = fcport;             \
3292        if (data) {                             \
3293                e->u.logio.data[0] = data[0];   \
3294                e->u.logio.data[1] = data[1];   \
3295        }                                       \
3296        return qla2x00_post_work(vha, e);       \
3297}
3298
3299qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3300qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3301qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3302qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3303qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3304qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3305
3306int
3307qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3308{
3309        struct qla_work_evt *e;
3310
3311        e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3312        if (!e)
3313                return QLA_FUNCTION_FAILED;
3314
3315        e->u.uevent.code = code;
3316        return qla2x00_post_work(vha, e);
3317}
3318
3319static void
3320qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3321{
3322        char event_string[40];
3323        char *envp[] = { event_string, NULL };
3324
3325        switch (code) {
3326        case QLA_UEVENT_CODE_FW_DUMP:
3327                snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3328                    vha->host_no);
3329                break;
3330        default:
3331                /* do nothing */
3332                break;
3333        }
3334        kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3335}
3336
3337void
3338qla2x00_do_work(struct scsi_qla_host *vha)
3339{
3340        struct qla_work_evt *e, *tmp;
3341        unsigned long flags;
3342        LIST_HEAD(work);
3343
3344        spin_lock_irqsave(&vha->work_lock, flags);
3345        list_splice_init(&vha->work_list, &work);
3346        spin_unlock_irqrestore(&vha->work_lock, flags);
3347
3348        list_for_each_entry_safe(e, tmp, &work, list) {
3349                list_del_init(&e->list);
3350
3351                switch (e->type) {
3352                case QLA_EVT_AEN:
3353                        fc_host_post_event(vha->host, fc_get_event_number(),
3354                            e->u.aen.code, e->u.aen.data);
3355                        break;
3356                case QLA_EVT_IDC_ACK:
3357                        qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3358                        break;
3359                case QLA_EVT_ASYNC_LOGIN:
3360                        qla2x00_async_login(vha, e->u.logio.fcport,
3361                            e->u.logio.data);
3362                        break;
3363                case QLA_EVT_ASYNC_LOGIN_DONE:
3364                        qla2x00_async_login_done(vha, e->u.logio.fcport,
3365                            e->u.logio.data);
3366                        break;
3367                case QLA_EVT_ASYNC_LOGOUT:
3368                        qla2x00_async_logout(vha, e->u.logio.fcport);
3369                        break;
3370                case QLA_EVT_ASYNC_LOGOUT_DONE:
3371                        qla2x00_async_logout_done(vha, e->u.logio.fcport,
3372                            e->u.logio.data);
3373                        break;
3374                case QLA_EVT_ASYNC_ADISC:
3375                        qla2x00_async_adisc(vha, e->u.logio.fcport,
3376                            e->u.logio.data);
3377                        break;
3378                case QLA_EVT_ASYNC_ADISC_DONE:
3379                        qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3380                            e->u.logio.data);
3381                        break;
3382                case QLA_EVT_UEVENT:
3383                        qla2x00_uevent_emit(vha, e->u.uevent.code);
3384                        break;
3385                }
3386                if (e->flags & QLA_EVT_FLAG_FREE)
3387                        kfree(e);
3388
3389                /* For each work completed decrement vha ref count */
3390                QLA_VHA_MARK_NOT_BUSY(vha);
3391        }
3392}
3393
3394/* Relogins all the fcports of a vport
3395 * Context: dpc thread
3396 */
3397void qla2x00_relogin(struct scsi_qla_host *vha)
3398{
3399        fc_port_t       *fcport;
3400        int status;
3401        uint16_t        next_loopid = 0;
3402        struct qla_hw_data *ha = vha->hw;
3403        uint16_t data[2];
3404
3405        list_for_each_entry(fcport, &vha->vp_fcports, list) {
3406        /*
3407         * If the port is not ONLINE then try to login
3408         * to it if we haven't run out of retries.
3409         */
3410                if (atomic_read(&fcport->state) != FCS_ONLINE &&
3411                    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3412                        fcport->login_retry--;
3413                        if (fcport->flags & FCF_FABRIC_DEVICE) {
3414                                if (fcport->flags & FCF_FCP2_DEVICE)
3415                                        ha->isp_ops->fabric_logout(vha,
3416                                                        fcport->loop_id,
3417                                                        fcport->d_id.b.domain,
3418                                                        fcport->d_id.b.area,
3419                                                        fcport->d_id.b.al_pa);
3420
3421                                if (fcport->loop_id == FC_NO_LOOP_ID) {
3422                                        fcport->loop_id = next_loopid =
3423                                            ha->min_external_loopid;
3424                                        status = qla2x00_find_new_loop_id(
3425                                            vha, fcport);
3426                                        if (status != QLA_SUCCESS) {
3427                                                /* Ran out of IDs to use */
3428                                                break;
3429                                        }
3430                                }
3431
3432                                if (IS_ALOGIO_CAPABLE(ha)) {
3433                                        fcport->flags |= FCF_ASYNC_SENT;
3434                                        data[0] = 0;
3435                                        data[1] = QLA_LOGIO_LOGIN_RETRIED;
3436                                        status = qla2x00_post_async_login_work(
3437                                            vha, fcport, data);
3438                                        if (status == QLA_SUCCESS)
3439                                                continue;
3440                                        /* Attempt a retry. */
3441                                        status = 1;
3442                                } else
3443                                        status = qla2x00_fabric_login(vha,
3444                                            fcport, &next_loopid);
3445                        } else
3446                                status = qla2x00_local_device_login(vha,
3447                                                                fcport);
3448
3449                        if (status == QLA_SUCCESS) {
3450                                fcport->old_loop_id = fcport->loop_id;
3451
3452                                ql_dbg(ql_dbg_disc, vha, 0x2003,
3453                                    "Port login OK: logged in ID 0x%x.\n",
3454                                    fcport->loop_id);
3455
3456                                qla2x00_update_fcport(vha, fcport);
3457
3458                        } else if (status == 1) {
3459                                set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3460                                /* retry the login again */
3461                                ql_dbg(ql_dbg_disc, vha, 0x2007,
3462                                    "Retrying %d login again loop_id 0x%x.\n",
3463                                    fcport->login_retry, fcport->loop_id);
3464                        } else {
3465                                fcport->login_retry = 0;
3466                        }
3467
3468                        if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3469                                fcport->loop_id = FC_NO_LOOP_ID;
3470                }
3471                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3472                        break;
3473        }
3474}
3475
3476/**************************************************************************
3477* qla2x00_do_dpc
3478*   This kernel thread is a task that is schedule by the interrupt handler
3479*   to perform the background processing for interrupts.
3480*
3481* Notes:
3482* This task always run in the context of a kernel thread.  It
3483* is kick-off by the driver's detect code and starts up
3484* up one per adapter. It immediately goes to sleep and waits for
3485* some fibre event.  When either the interrupt handler or
3486* the timer routine detects a event it will one of the task
3487* bits then wake us up.
3488**************************************************************************/
3489static int
3490qla2x00_do_dpc(void *data)
3491{
3492        int             rval;
3493        scsi_qla_host_t *base_vha;
3494        struct qla_hw_data *ha;
3495
3496        ha = (struct qla_hw_data *)data;
3497        base_vha = pci_get_drvdata(ha->pdev);
3498
3499        set_user_nice(current, -20);
3500
3501        set_current_state(TASK_INTERRUPTIBLE);
3502        while (!kthread_should_stop()) {
3503                ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
3504                    "DPC handler sleeping.\n");
3505
3506                schedule();
3507                __set_current_state(TASK_RUNNING);
3508
3509                ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
3510                    "DPC handler waking up.\n");
3511                ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
3512                    "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
3513
3514                /* Initialization not yet finished. Don't do anything yet. */
3515                if (!base_vha->flags.init_done)
3516                        continue;
3517
3518                if (ha->flags.eeh_busy) {
3519                        ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
3520                            "eeh_busy=%d.\n", ha->flags.eeh_busy);
3521                        continue;
3522                }
3523
3524                ha->dpc_active = 1;
3525
3526                if (ha->flags.mbox_busy) {
3527                        ha->dpc_active = 0;
3528                        continue;
3529                }
3530
3531                qla2x00_do_work(base_vha);
3532
3533                if (IS_QLA82XX(ha)) {
3534                        if (test_and_clear_bit(ISP_UNRECOVERABLE,
3535                                &base_vha->dpc_flags)) {
3536                                qla82xx_idc_lock(ha);
3537                                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3538                                        QLA82XX_DEV_FAILED);
3539                                qla82xx_idc_unlock(ha);
3540                                ql_log(ql_log_info, base_vha, 0x4004,
3541                                    "HW State: FAILED.\n");
3542                                qla82xx_device_state_handler(base_vha);
3543                                continue;
3544                        }
3545
3546                        if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3547                                &base_vha->dpc_flags)) {
3548
3549                                ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
3550                                    "FCoE context reset scheduled.\n");
3551                                if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3552                                        &base_vha->dpc_flags))) {
3553                                        if (qla82xx_fcoe_ctx_reset(base_vha)) {
3554                                                /* FCoE-ctx reset failed.
3555                                                 * Escalate to chip-reset
3556                                                 */
3557                                                set_bit(ISP_ABORT_NEEDED,
3558                                                        &base_vha->dpc_flags);
3559                                        }
3560                                        clear_bit(ABORT_ISP_ACTIVE,
3561                                                &base_vha->dpc_flags);
3562                                }
3563
3564                                ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
3565                                    "FCoE context reset end.\n");
3566                        }
3567                }
3568
3569                if (test_and_clear_bit(ISP_ABORT_NEEDED,
3570                                                &base_vha->dpc_flags)) {
3571
3572                        ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
3573                            "ISP abort scheduled.\n");
3574                        if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3575                            &base_vha->dpc_flags))) {
3576
3577                                if (ha->isp_ops->abort_isp(base_vha)) {
3578                                        /* failed. retry later */
3579                                        set_bit(ISP_ABORT_NEEDED,
3580                                            &base_vha->dpc_flags);
3581                                }
3582                                clear_bit(ABORT_ISP_ACTIVE,
3583                                                &base_vha->dpc_flags);
3584                        }
3585
3586                        ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
3587                            "ISP abort end.\n");
3588                }
3589
3590                if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3591                        qla2x00_update_fcports(base_vha);
3592                        clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3593                }
3594
3595                if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3596                        ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
3597                            "Quiescence mode scheduled.\n");
3598                        qla82xx_device_state_handler(base_vha);
3599                        clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3600                        if (!ha->flags.quiesce_owner) {
3601                                qla2x00_perform_loop_resync(base_vha);
3602
3603                                qla82xx_idc_lock(ha);
3604                                qla82xx_clear_qsnt_ready(base_vha);
3605                                qla82xx_idc_unlock(ha);
3606                        }
3607                        ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
3608                            "Quiescence mode end.\n");
3609                }
3610
3611                if (test_and_clear_bit(RESET_MARKER_NEEDED,
3612                                                        &base_vha->dpc_flags) &&
3613                    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3614
3615                        ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
3616                            "Reset marker scheduled.\n");
3617                        qla2x00_rst_aen(base_vha);
3618                        clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3619                        ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
3620                            "Reset marker end.\n");
3621                }
3622
3623                /* Retry each device up to login retry count */
3624                if ((test_and_clear_bit(RELOGIN_NEEDED,
3625                                                &base_vha->dpc_flags)) &&
3626                    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3627                    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3628
3629                        ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
3630                            "Relogin scheduled.\n");
3631                        qla2x00_relogin(base_vha);
3632                        ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
3633                            "Relogin end.\n");
3634                }
3635
3636                if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3637                                                        &base_vha->dpc_flags)) {
3638
3639                        ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
3640                            "Loop resync scheduled.\n");
3641
3642                        if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3643                            &base_vha->dpc_flags))) {
3644
3645                                rval = qla2x00_loop_resync(base_vha);
3646
3647                                clear_bit(LOOP_RESYNC_ACTIVE,
3648                                                &base_vha->dpc_flags);
3649                        }
3650
3651                        ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
3652                            "Loop resync end.\n");
3653                }
3654
3655                if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3656                    atomic_read(&base_vha->loop_state) == LOOP_READY) {
3657                        clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3658                        qla2xxx_flash_npiv_conf(base_vha);
3659                }
3660
3661                if (!ha->interrupts_on)
3662                        ha->isp_ops->enable_intrs(ha);
3663
3664                if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3665                                        &base_vha->dpc_flags))
3666                        ha->isp_ops->beacon_blink(base_vha);
3667
3668                qla2x00_do_dpc_all_vps(base_vha);
3669
3670                ha->dpc_active = 0;
3671                set_current_state(TASK_INTERRUPTIBLE);
3672        } /* End of while(1) */
3673        __set_current_state(TASK_RUNNING);
3674
3675        ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
3676            "DPC handler exiting.\n");
3677
3678        /*
3679         * Make sure that nobody tries to wake us up again.
3680         */
3681        ha->dpc_active = 0;
3682
3683        /* Cleanup any residual CTX SRBs. */
3684        qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3685
3686        return 0;
3687}
3688
3689void
3690qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3691{
3692        struct qla_hw_data *ha = vha->hw;
3693        struct task_struct *t = ha->dpc_thread;
3694
3695        if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3696                wake_up_process(t);
3697}
3698
3699/*
3700*  qla2x00_rst_aen
3701*      Processes asynchronous reset.
3702*
3703* Input:
3704*      ha  = adapter block pointer.
3705*/
3706static void
3707qla2x00_rst_aen(scsi_qla_host_t *vha)
3708{
3709        if (vha->flags.online && !vha->flags.reset_active &&
3710            !atomic_read(&vha->loop_down_timer) &&
3711            !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3712                do {
3713                        clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3714
3715                        /*
3716                         * Issue marker command only when we are going to start
3717                         * the I/O.
3718                         */
3719                        vha->marker_needed = 1;
3720                } while (!atomic_read(&vha->loop_down_timer) &&
3721                    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3722        }
3723}
3724
3725static void
3726qla2x00_sp_free_dma(srb_t *sp)
3727{
3728        struct scsi_cmnd *cmd = sp->cmd;
3729        struct qla_hw_data *ha = sp->fcport->vha->hw;
3730
3731        if (sp->flags & SRB_DMA_VALID) {
3732                scsi_dma_unmap(cmd);
3733                sp->flags &= ~SRB_DMA_VALID;
3734        }
3735
3736        if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3737                dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3738                    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3739                sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3740        }
3741
3742        if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3743                /* List assured to be having elements */
3744                qla2x00_clean_dsd_pool(ha, sp);
3745                sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3746        }
3747
3748        if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3749                dma_pool_free(ha->dl_dma_pool, sp->ctx,
3750                    ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3751                sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3752        }
3753
3754        CMD_SP(cmd) = NULL;
3755}
3756
3757static void
3758qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3759{
3760        struct scsi_cmnd *cmd = sp->cmd;
3761
3762        qla2x00_sp_free_dma(sp);
3763
3764        if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3765                struct ct6_dsd *ctx = sp->ctx;
3766                dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3767                        ctx->fcp_cmnd_dma);
3768                list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3769                ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3770                ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3771                mempool_free(sp->ctx, ha->ctx_mempool);
3772                sp->ctx = NULL;
3773        }
3774
3775        mempool_free(sp, ha->srb_mempool);
3776        cmd->scsi_done(cmd);
3777}
3778
3779void
3780qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3781{
3782        if (atomic_read(&sp->ref_count) == 0) {
3783                ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
3784                    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
3785                    sp, sp->cmd);
3786                if (ql2xextended_error_logging & ql_dbg_io)
3787                        BUG();
3788                return;
3789        }
3790        if (!atomic_dec_and_test(&sp->ref_count))
3791                return;
3792        qla2x00_sp_final_compl(ha, sp);
3793}
3794
3795/**************************************************************************
3796*   qla2x00_timer
3797*
3798* Description:
3799*   One second timer
3800*
3801* Context: Interrupt
3802***************************************************************************/
3803void
3804qla2x00_timer(scsi_qla_host_t *vha)
3805{
3806        unsigned long   cpu_flags = 0;
3807        int             start_dpc = 0;
3808        int             index;
3809        srb_t           *sp;
3810        uint16_t        w;
3811        struct qla_hw_data *ha = vha->hw;
3812        struct req_que *req;
3813
3814        if (ha->flags.eeh_busy) {
3815                ql_dbg(ql_dbg_timer, vha, 0x6000,
3816                    "EEH = %d, restarting timer.\n",
3817                    ha->flags.eeh_busy);
3818                qla2x00_restart_timer(vha, WATCH_INTERVAL);
3819                return;
3820        }
3821
3822        /* Hardware read to raise pending EEH errors during mailbox waits. */
3823        if (!pci_channel_offline(ha->pdev))
3824                pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3825
3826        /* Make sure qla82xx_watchdog is run only for physical port */
3827        if (!vha->vp_idx && IS_QLA82XX(ha)) {
3828                if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3829                        start_dpc++;
3830                qla82xx_watchdog(vha);
3831        }
3832
3833        /* Loop down handler. */
3834        if (atomic_read(&vha->loop_down_timer) > 0 &&
3835            !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3836            !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3837                && vha->flags.online) {
3838
3839                if (atomic_read(&vha->loop_down_timer) ==
3840                    vha->loop_down_abort_time) {
3841
3842                        ql_log(ql_log_info, vha, 0x6008,
3843                            "Loop down - aborting the queues before time expires.\n");
3844
3845                        if (!IS_QLA2100(ha) && vha->link_down_timeout)
3846                                atomic_set(&vha->loop_state, LOOP_DEAD);
3847
3848                        /*
3849                         * Schedule an ISP abort to return any FCP2-device
3850                         * commands.
3851                         */
3852                        /* NPIV - scan physical port only */
3853                        if (!vha->vp_idx) {
3854                                spin_lock_irqsave(&ha->hardware_lock,
3855                                    cpu_flags);
3856                                req = ha->req_q_map[0];
3857                                for (index = 1;
3858                                    index < MAX_OUTSTANDING_COMMANDS;
3859                                    index++) {
3860                                        fc_port_t *sfcp;
3861
3862                                        sp = req->outstanding_cmds[index];
3863                                        if (!sp)
3864                                                continue;
3865                                        if (sp->ctx && !IS_PROT_IO(sp))
3866                                                continue;
3867                                        sfcp = sp->fcport;
3868                                        if (!(sfcp->flags & FCF_FCP2_DEVICE))
3869                                                continue;
3870
3871                                        if (IS_QLA82XX(ha))
3872                                                set_bit(FCOE_CTX_RESET_NEEDED,
3873                                                        &vha->dpc_flags);
3874                                        else
3875                                                set_bit(ISP_ABORT_NEEDED,
3876                                                        &vha->dpc_flags);
3877                                        break;
3878                                }
3879                                spin_unlock_irqrestore(&ha->hardware_lock,
3880                                                                cpu_flags);
3881                        }
3882                        start_dpc++;
3883                }
3884
3885                /* if the loop has been down for 4 minutes, reinit adapter */
3886                if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3887                        if (!(vha->device_flags & DFLG_NO_CABLE)) {
3888                                ql_log(ql_log_warn, vha, 0x6009,
3889                                    "Loop down - aborting ISP.\n");
3890
3891                                if (IS_QLA82XX(ha))
3892                                        set_bit(FCOE_CTX_RESET_NEEDED,
3893                                                &vha->dpc_flags);
3894                                else
3895                                        set_bit(ISP_ABORT_NEEDED,
3896                                                &vha->dpc_flags);
3897                        }
3898                }
3899                ql_dbg(ql_dbg_timer, vha, 0x600a,
3900                    "Loop down - seconds remaining %d.\n",
3901                    atomic_read(&vha->loop_down_timer));
3902        }
3903
3904        /* Check if beacon LED needs to be blinked for physical host only */
3905        if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
3906                set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3907                start_dpc++;
3908        }
3909
3910        /* Process any deferred work. */
3911        if (!list_empty(&vha->work_list))
3912                start_dpc++;
3913
3914        /* Schedule the DPC routine if needed */
3915        if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3916            test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3917            test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3918            start_dpc ||
3919            test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3920            test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3921            test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3922            test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3923            test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3924            test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
3925                ql_dbg(ql_dbg_timer, vha, 0x600b,
3926                    "isp_abort_needed=%d loop_resync_needed=%d "
3927                    "fcport_update_needed=%d start_dpc=%d "
3928                    "reset_marker_needed=%d",
3929                    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
3930                    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
3931                    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
3932                    start_dpc,
3933                    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
3934                ql_dbg(ql_dbg_timer, vha, 0x600c,
3935                    "beacon_blink_needed=%d isp_unrecoverable=%d "
3936                    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
3937                    "relogin_needed=%d.\n",
3938                    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
3939                    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
3940                    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
3941                    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
3942                    test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
3943                qla2xxx_wake_dpc(vha);
3944        }
3945
3946        qla2x00_restart_timer(vha, WATCH_INTERVAL);
3947}
3948
3949/* Firmware interface routines. */
3950
3951#define FW_BLOBS        8
3952#define FW_ISP21XX      0
3953#define FW_ISP22XX      1
3954#define FW_ISP2300      2
3955#define FW_ISP2322      3
3956#define FW_ISP24XX      4
3957#define FW_ISP25XX      5
3958#define FW_ISP81XX      6
3959#define FW_ISP82XX      7
3960
3961#define FW_FILE_ISP21XX "ql2100_fw.bin"
3962#define FW_FILE_ISP22XX "ql2200_fw.bin"
3963#define FW_FILE_ISP2300 "ql2300_fw.bin"
3964#define FW_FILE_ISP2322 "ql2322_fw.bin"
3965#define FW_FILE_ISP24XX "ql2400_fw.bin"
3966#define FW_FILE_ISP25XX "ql2500_fw.bin"
3967#define FW_FILE_ISP81XX "ql8100_fw.bin"
3968#define FW_FILE_ISP82XX "ql8200_fw.bin"
3969
3970static DEFINE_MUTEX(qla_fw_lock);
3971
3972static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3973        { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3974        { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3975        { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3976        { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3977        { .name = FW_FILE_ISP24XX, },
3978        { .name = FW_FILE_ISP25XX, },
3979        { .name = FW_FILE_ISP81XX, },
3980        { .name = FW_FILE_ISP82XX, },
3981};
3982
3983struct fw_blob *
3984qla2x00_request_firmware(scsi_qla_host_t *vha)
3985{
3986        struct qla_hw_data *ha = vha->hw;
3987        struct fw_blob *blob;
3988
3989        blob = NULL;
3990        if (IS_QLA2100(ha)) {
3991                blob = &qla_fw_blobs[FW_ISP21XX];
3992        } else if (IS_QLA2200(ha)) {
3993                blob = &qla_fw_blobs[FW_ISP22XX];
3994        } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3995                blob = &qla_fw_blobs[FW_ISP2300];
3996        } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3997                blob = &qla_fw_blobs[FW_ISP2322];
3998        } else if (IS_QLA24XX_TYPE(ha)) {
3999                blob = &qla_fw_blobs[FW_ISP24XX];
4000        } else if (IS_QLA25XX(ha)) {
4001                blob = &qla_fw_blobs[FW_ISP25XX];
4002        } else if (IS_QLA81XX(ha)) {
4003                blob = &qla_fw_blobs[FW_ISP81XX];
4004        } else if (IS_QLA82XX(ha)) {
4005                blob = &qla_fw_blobs[FW_ISP82XX];
4006        }
4007
4008        mutex_lock(&qla_fw_lock);
4009        if (blob->fw)
4010                goto out;
4011
4012        if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
4013                ql_log(ql_log_warn, vha, 0x0063,
4014                    "Failed to load firmware image (%s).\n", blob->name);
4015                blob->fw = NULL;
4016                blob = NULL;
4017                goto out;
4018        }
4019
4020out:
4021        mutex_unlock(&qla_fw_lock);
4022        return blob;
4023}
4024
4025static void
4026qla2x00_release_firmware(void)
4027{
4028        int idx;
4029
4030        mutex_lock(&qla_fw_lock);
4031        for (idx = 0; idx < FW_BLOBS; idx++)
4032                if (qla_fw_blobs[idx].fw)
4033                        release_firmware(qla_fw_blobs[idx].fw);
4034        mutex_unlock(&qla_fw_lock);
4035}
4036
4037static pci_ers_result_t
4038qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
4039{
4040        scsi_qla_host_t *vha = pci_get_drvdata(pdev);
4041        struct qla_hw_data *ha = vha->hw;
4042
4043        ql_dbg(ql_dbg_aer, vha, 0x9000,
4044            "PCI error detected, state %x.\n", state);
4045
4046        switch (state) {
4047        case pci_channel_io_normal:
4048                ha->flags.eeh_busy = 0;
4049                return PCI_ERS_RESULT_CAN_RECOVER;
4050        case pci_channel_io_frozen:
4051                ha->flags.eeh_busy = 1;
4052                /* For ISP82XX complete any pending mailbox cmd */
4053                if (IS_QLA82XX(ha)) {
4054                        ha->flags.isp82xx_fw_hung = 1;
4055                        if (ha->flags.mbox_busy) {
4056                                ha->flags.mbox_int = 1;
4057                                ql_dbg(ql_dbg_aer, vha, 0x9001,
4058                                    "Due to pci channel io frozen, doing premature "
4059                                    "completion of mbx command.\n");
4060                                complete(&ha->mbx_intr_comp);
4061                        }
4062                }
4063                qla2x00_free_irqs(vha);
4064                pci_disable_device(pdev);
4065                /* Return back all IOs */
4066                qla2x00_abort_all_cmds(vha, DID_RESET << 16);
4067                return PCI_ERS_RESULT_NEED_RESET;
4068        case pci_channel_io_perm_failure:
4069                ha->flags.pci_channel_io_perm_failure = 1;
4070                qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4071                return PCI_ERS_RESULT_DISCONNECT;
4072        }
4073        return PCI_ERS_RESULT_NEED_RESET;
4074}
4075
4076static pci_ers_result_t
4077qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
4078{
4079        int risc_paused = 0;
4080        uint32_t stat;
4081        unsigned long flags;
4082        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4083        struct qla_hw_data *ha = base_vha->hw;
4084        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4085        struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
4086
4087        if (IS_QLA82XX(ha))
4088                return PCI_ERS_RESULT_RECOVERED;
4089
4090        spin_lock_irqsave(&ha->hardware_lock, flags);
4091        if (IS_QLA2100(ha) || IS_QLA2200(ha)){
4092                stat = RD_REG_DWORD(&reg->hccr);
4093                if (stat & HCCR_RISC_PAUSE)
4094                        risc_paused = 1;
4095        } else if (IS_QLA23XX(ha)) {
4096                stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
4097                if (stat & HSR_RISC_PAUSED)
4098                        risc_paused = 1;
4099        } else if (IS_FWI2_CAPABLE(ha)) {
4100                stat = RD_REG_DWORD(&reg24->host_status);
4101                if (stat & HSRX_RISC_PAUSED)
4102                        risc_paused = 1;
4103        }
4104        spin_unlock_irqrestore(&ha->hardware_lock, flags);
4105
4106        if (risc_paused) {
4107                ql_log(ql_log_info, base_vha, 0x9003,
4108                    "RISC paused -- mmio_enabled, Dumping firmware.\n");
4109                ha->isp_ops->fw_dump(base_vha, 0);
4110
4111                return PCI_ERS_RESULT_NEED_RESET;
4112        } else
4113                return PCI_ERS_RESULT_RECOVERED;
4114}
4115
4116uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
4117{
4118        uint32_t rval = QLA_FUNCTION_FAILED;
4119        uint32_t drv_active = 0;
4120        struct qla_hw_data *ha = base_vha->hw;
4121        int fn;
4122        struct pci_dev *other_pdev = NULL;
4123
4124        ql_dbg(ql_dbg_aer, base_vha, 0x9006,
4125            "Entered %s.\n", __func__);
4126
4127        set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4128
4129        if (base_vha->flags.online) {
4130                /* Abort all outstanding commands,
4131                 * so as to be requeued later */
4132                qla2x00_abort_isp_cleanup(base_vha);
4133        }
4134
4135
4136        fn = PCI_FUNC(ha->pdev->devfn);
4137        while (fn > 0) {
4138                fn--;
4139                ql_dbg(ql_dbg_aer, base_vha, 0x9007,
4140                    "Finding pci device at function = 0x%x.\n", fn);
4141                other_pdev =
4142                    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4143                    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4144                    fn));
4145
4146                if (!other_pdev)
4147                        continue;
4148                if (atomic_read(&other_pdev->enable_cnt)) {
4149                        ql_dbg(ql_dbg_aer, base_vha, 0x9008,
4150                            "Found PCI func available and enable at 0x%x.\n",
4151                            fn);
4152                        pci_dev_put(other_pdev);
4153                        break;
4154                }
4155                pci_dev_put(other_pdev);
4156        }
4157
4158        if (!fn) {
4159                /* Reset owner */
4160                ql_dbg(ql_dbg_aer, base_vha, 0x9009,
4161                    "This devfn is reset owner = 0x%x.\n",
4162                    ha->pdev->devfn);
4163                qla82xx_idc_lock(ha);
4164
4165                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4166                    QLA82XX_DEV_INITIALIZING);
4167
4168                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
4169                    QLA82XX_IDC_VERSION);
4170
4171                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
4172                ql_dbg(ql_dbg_aer, base_vha, 0x900a,
4173                    "drv_active = 0x%x.\n", drv_active);
4174
4175                qla82xx_idc_unlock(ha);
4176                /* Reset if device is not already reset
4177                 * drv_active would be 0 if a reset has already been done
4178                 */
4179                if (drv_active)
4180                        rval = qla82xx_start_firmware(base_vha);
4181                else
4182                        rval = QLA_SUCCESS;
4183                qla82xx_idc_lock(ha);
4184
4185                if (rval != QLA_SUCCESS) {
4186                        ql_log(ql_log_info, base_vha, 0x900b,
4187                            "HW State: FAILED.\n");
4188                        qla82xx_clear_drv_active(ha);
4189                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4190                            QLA82XX_DEV_FAILED);
4191                } else {
4192                        ql_log(ql_log_info, base_vha, 0x900c,
4193                            "HW State: READY.\n");
4194                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4195                            QLA82XX_DEV_READY);
4196                        qla82xx_idc_unlock(ha);
4197                        ha->flags.isp82xx_fw_hung = 0;
4198                        rval = qla82xx_restart_isp(base_vha);
4199                        qla82xx_idc_lock(ha);
4200                        /* Clear driver state register */
4201                        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
4202                        qla82xx_set_drv_active(base_vha);
4203                }
4204                qla82xx_idc_unlock(ha);
4205        } else {
4206                ql_dbg(ql_dbg_aer, base_vha, 0x900d,
4207                    "This devfn is not reset owner = 0x%x.\n",
4208                    ha->pdev->devfn);
4209                if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
4210                    QLA82XX_DEV_READY)) {
4211                        ha->flags.isp82xx_fw_hung = 0;
4212                        rval = qla82xx_restart_isp(base_vha);
4213                        qla82xx_idc_lock(ha);
4214                        qla82xx_set_drv_active(base_vha);
4215                        qla82xx_idc_unlock(ha);
4216                }
4217        }
4218        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4219
4220        return rval;
4221}
4222
4223static pci_ers_result_t
4224qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4225{
4226        pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4227        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4228        struct qla_hw_data *ha = base_vha->hw;
4229        struct rsp_que *rsp;
4230        int rc, retries = 10;
4231
4232        ql_dbg(ql_dbg_aer, base_vha, 0x9004,
4233            "Slot Reset.\n");
4234
4235        /* Workaround: qla2xxx driver which access hardware earlier
4236         * needs error state to be pci_channel_io_online.
4237         * Otherwise mailbox command timesout.
4238         */
4239        pdev->error_state = pci_channel_io_normal;
4240
4241        pci_restore_state(pdev);
4242
4243        /* pci_restore_state() clears the saved_state flag of the device
4244         * save restored state which resets saved_state flag
4245         */
4246        pci_save_state(pdev);
4247
4248        if (ha->mem_only)
4249                rc = pci_enable_device_mem(pdev);
4250        else
4251                rc = pci_enable_device(pdev);
4252
4253        if (rc) {
4254                ql_log(ql_log_warn, base_vha, 0x9005,
4255                    "Can't re-enable PCI device after reset.\n");
4256                goto exit_slot_reset;
4257        }
4258
4259        rsp = ha->rsp_q_map[0];
4260        if (qla2x00_request_irqs(ha, rsp))
4261                goto exit_slot_reset;
4262
4263        if (ha->isp_ops->pci_config(base_vha))
4264                goto exit_slot_reset;
4265
4266        if (IS_QLA82XX(ha)) {
4267                if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4268                        ret = PCI_ERS_RESULT_RECOVERED;
4269                        goto exit_slot_reset;
4270                } else
4271                        goto exit_slot_reset;
4272        }
4273
4274        while (ha->flags.mbox_busy && retries--)
4275                msleep(1000);
4276
4277        set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4278        if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4279                ret =  PCI_ERS_RESULT_RECOVERED;
4280        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4281
4282
4283exit_slot_reset:
4284        ql_dbg(ql_dbg_aer, base_vha, 0x900e,
4285            "slot_reset return %x.\n", ret);
4286
4287        return ret;
4288}
4289
4290static void
4291qla2xxx_pci_resume(struct pci_dev *pdev)
4292{
4293        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4294        struct qla_hw_data *ha = base_vha->hw;
4295        int ret;
4296
4297        ql_dbg(ql_dbg_aer, base_vha, 0x900f,
4298            "pci_resume.\n");
4299
4300        ret = qla2x00_wait_for_hba_online(base_vha);
4301        if (ret != QLA_SUCCESS) {
4302                ql_log(ql_log_fatal, base_vha, 0x9002,
4303                    "The device failed to resume I/O from slot/link_reset.\n");
4304        }
4305
4306        pci_cleanup_aer_uncorrect_error_status(pdev);
4307
4308        ha->flags.eeh_busy = 0;
4309}
4310
4311static struct pci_error_handlers qla2xxx_err_handler = {
4312        .error_detected = qla2xxx_pci_error_detected,
4313        .mmio_enabled = qla2xxx_pci_mmio_enabled,
4314        .slot_reset = qla2xxx_pci_slot_reset,
4315        .resume = qla2xxx_pci_resume,
4316};
4317
4318static struct pci_device_id qla2xxx_pci_tbl[] = {
4319        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4320        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4321        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4322        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4323        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4324        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4325        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4326        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4327        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4328        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4329        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4330        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4331        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4332        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4333        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4334        { 0 },
4335};
4336MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4337
4338static struct pci_driver qla2xxx_pci_driver = {
4339        .name           = QLA2XXX_DRIVER_NAME,
4340        .driver         = {
4341                .owner          = THIS_MODULE,
4342        },
4343        .id_table       = qla2xxx_pci_tbl,
4344        .probe          = qla2x00_probe_one,
4345        .remove         = qla2x00_remove_one,
4346        .shutdown       = qla2x00_shutdown,
4347        .err_handler    = &qla2xxx_err_handler,
4348};
4349
4350static struct file_operations apidev_fops = {
4351        .owner = THIS_MODULE,
4352        .llseek = noop_llseek,
4353};
4354
4355/**
4356 * qla2x00_module_init - Module initialization.
4357 **/
4358static int __init
4359qla2x00_module_init(void)
4360{
4361        int ret = 0;
4362
4363        /* Allocate cache for SRBs. */
4364        srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4365            SLAB_HWCACHE_ALIGN, NULL);
4366        if (srb_cachep == NULL) {
4367                ql_log(ql_log_fatal, NULL, 0x0001,
4368                    "Unable to allocate SRB cache...Failing load!.\n");
4369                return -ENOMEM;
4370        }
4371
4372        /* Derive version string. */
4373        strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4374        if (ql2xextended_error_logging)
4375                strcat(qla2x00_version_str, "-debug");
4376
4377        qla2xxx_transport_template =
4378            fc_attach_transport(&qla2xxx_transport_functions);
4379        if (!qla2xxx_transport_template) {
4380                kmem_cache_destroy(srb_cachep);
4381                ql_log(ql_log_fatal, NULL, 0x0002,
4382                    "fc_attach_transport failed...Failing load!.\n");
4383                return -ENODEV;
4384        }
4385
4386        apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4387        if (apidev_major < 0) {
4388                ql_log(ql_log_fatal, NULL, 0x0003,
4389                    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
4390        }
4391
4392        qla2xxx_transport_vport_template =
4393            fc_attach_transport(&qla2xxx_transport_vport_functions);
4394        if (!qla2xxx_transport_vport_template) {
4395                kmem_cache_destroy(srb_cachep);
4396                fc_release_transport(qla2xxx_transport_template);
4397                ql_log(ql_log_fatal, NULL, 0x0004,
4398                    "fc_attach_transport vport failed...Failing load!.\n");
4399                return -ENODEV;
4400        }
4401        ql_log(ql_log_info, NULL, 0x0005,
4402            "QLogic Fibre Channel HBA Driver: %s.\n",
4403            qla2x00_version_str);
4404        ret = pci_register_driver(&qla2xxx_pci_driver);
4405        if (ret) {
4406                kmem_cache_destroy(srb_cachep);
4407                fc_release_transport(qla2xxx_transport_template);
4408                fc_release_transport(qla2xxx_transport_vport_template);
4409                ql_log(ql_log_fatal, NULL, 0x0006,
4410                    "pci_register_driver failed...ret=%d Failing load!.\n",
4411                    ret);
4412        }
4413        return ret;
4414}
4415
4416/**
4417 * qla2x00_module_exit - Module cleanup.
4418 **/
4419static void __exit
4420qla2x00_module_exit(void)
4421{
4422        unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4423        pci_unregister_driver(&qla2xxx_pci_driver);
4424        qla2x00_release_firmware();
4425        kmem_cache_destroy(srb_cachep);
4426        if (ctx_cachep)
4427                kmem_cache_destroy(ctx_cachep);
4428        fc_release_transport(qla2xxx_transport_template);
4429        fc_release_transport(qla2xxx_transport_vport_template);
4430}
4431
4432module_init(qla2x00_module_init);
4433module_exit(qla2x00_module_exit);
4434
4435MODULE_AUTHOR("QLogic Corporation");
4436MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4437MODULE_LICENSE("GPL");
4438MODULE_VERSION(QLA2XXX_VERSION);
4439MODULE_FIRMWARE(FW_FILE_ISP21XX);
4440MODULE_FIRMWARE(FW_FILE_ISP22XX);
4441MODULE_FIRMWARE(FW_FILE_ISP2300);
4442MODULE_FIRMWARE(FW_FILE_ISP2322);
4443MODULE_FIRMWARE(FW_FILE_ISP24XX);
4444MODULE_FIRMWARE(FW_FILE_ISP25XX);
4445