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\t0x1e400000 - Preferred value for capturing essential "
  87                "debug information (equivalent to old "
  88                "ql2xextended_error_logging=1).\n"
  89                "\t\tDo LOGICAL OR of the value to enable more than one level");
  90
  91int ql2xshiftctondsd = 6;
  92module_param(ql2xshiftctondsd, int, S_IRUGO);
  93MODULE_PARM_DESC(ql2xshiftctondsd,
  94                "Set to control shifting of command type processing "
  95                "based on total number of SG elements.");
  96
  97static void qla2x00_free_device(scsi_qla_host_t *);
  98
  99int ql2xfdmienable=1;
 100module_param(ql2xfdmienable, int, S_IRUGO);
 101MODULE_PARM_DESC(ql2xfdmienable,
 102                "Enables FDMI registrations. "
 103                "0 - no FDMI. Default is 1 - perform FDMI.");
 104
 105#define MAX_Q_DEPTH    32
 106static int ql2xmaxqdepth = MAX_Q_DEPTH;
 107module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
 108MODULE_PARM_DESC(ql2xmaxqdepth,
 109                "Maximum queue depth to report for target devices.");
 110
 111/* Do not change the value of this after module load */
 112int ql2xenabledif = 0;
 113module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
 114MODULE_PARM_DESC(ql2xenabledif,
 115                " Enable T10-CRC-DIF "
 116                " Default is 0 - No DIF Support. 1 - Enable it"
 117                ", 2 - Enable DIF for all types, except Type 0.");
 118
 119int ql2xenablehba_err_chk = 2;
 120module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 121MODULE_PARM_DESC(ql2xenablehba_err_chk,
 122                " Enable T10-CRC-DIF Error isolation by HBA:\n"
 123                " Default is 1.\n"
 124                "  0 -- Error isolation disabled\n"
 125                "  1 -- Error isolation enabled only for DIX Type 0\n"
 126                "  2 -- Error isolation enabled for all Types\n");
 127
 128int ql2xiidmaenable=1;
 129module_param(ql2xiidmaenable, int, S_IRUGO);
 130MODULE_PARM_DESC(ql2xiidmaenable,
 131                "Enables iIDMA settings "
 132                "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 133
 134int ql2xmaxqueues = 1;
 135module_param(ql2xmaxqueues, int, S_IRUGO);
 136MODULE_PARM_DESC(ql2xmaxqueues,
 137                "Enables MQ settings "
 138                "Default is 1 for single queue. Set it to number "
 139                "of queues in MQ mode.");
 140
 141int ql2xmultique_tag;
 142module_param(ql2xmultique_tag, int, S_IRUGO);
 143MODULE_PARM_DESC(ql2xmultique_tag,
 144                "Enables CPU affinity settings for the driver "
 145                "Default is 0 for no affinity of request and response IO. "
 146                "Set it to 1 to turn on the cpu affinity.");
 147
 148int ql2xfwloadbin;
 149module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
 150MODULE_PARM_DESC(ql2xfwloadbin,
 151                "Option to specify location from which to load ISP firmware:.\n"
 152                " 2 -- load firmware via the request_firmware() (hotplug).\n"
 153                "      interface.\n"
 154                " 1 -- load firmware from flash.\n"
 155                " 0 -- use default semantics.\n");
 156
 157int ql2xetsenable;
 158module_param(ql2xetsenable, int, S_IRUGO);
 159MODULE_PARM_DESC(ql2xetsenable,
 160                "Enables firmware ETS burst."
 161                "Default is 0 - skip ETS enablement.");
 162
 163int ql2xdbwr = 1;
 164module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
 165MODULE_PARM_DESC(ql2xdbwr,
 166                "Option to specify scheme for request queue posting.\n"
 167                " 0 -- Regular doorbell.\n"
 168                " 1 -- CAMRAM doorbell (faster).\n");
 169
 170int ql2xtargetreset = 1;
 171module_param(ql2xtargetreset, int, S_IRUGO);
 172MODULE_PARM_DESC(ql2xtargetreset,
 173                 "Enable target reset."
 174                 "Default is 1 - use hw defaults.");
 175
 176int ql2xgffidenable;
 177module_param(ql2xgffidenable, int, S_IRUGO);
 178MODULE_PARM_DESC(ql2xgffidenable,
 179                "Enables GFF_ID checks of port type. "
 180                "Default is 0 - Do not use GFF_ID information.");
 181
 182int ql2xasynctmfenable;
 183module_param(ql2xasynctmfenable, int, S_IRUGO);
 184MODULE_PARM_DESC(ql2xasynctmfenable,
 185                "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 186                "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 187
 188int ql2xdontresethba;
 189module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
 190MODULE_PARM_DESC(ql2xdontresethba,
 191                "Option to specify reset behaviour.\n"
 192                " 0 (Default) -- Reset on failure.\n"
 193                " 1 -- Do not reset on failure.\n");
 194
 195uint ql2xmaxlun = MAX_LUNS;
 196module_param(ql2xmaxlun, uint, S_IRUGO);
 197MODULE_PARM_DESC(ql2xmaxlun,
 198                "Defines the maximum LU number to register with the SCSI "
 199                "midlayer. Default is 65535.");
 200
 201int ql2xmdcapmask = 0x1F;
 202module_param(ql2xmdcapmask, int, S_IRUGO);
 203MODULE_PARM_DESC(ql2xmdcapmask,
 204                "Set the Minidump driver capture mask level. "
 205                "Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
 206
 207int ql2xmdenable = 1;
 208module_param(ql2xmdenable, int, S_IRUGO);
 209MODULE_PARM_DESC(ql2xmdenable,
 210                "Enable/disable MiniDump. "
 211                "0 - MiniDump disabled. "
 212                "1 (Default) - MiniDump enabled.");
 213
 214/*
 215 * SCSI host template entry points
 216 */
 217static int qla2xxx_slave_configure(struct scsi_device * device);
 218static int qla2xxx_slave_alloc(struct scsi_device *);
 219static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 220static void qla2xxx_scan_start(struct Scsi_Host *);
 221static void qla2xxx_slave_destroy(struct scsi_device *);
 222static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 223static int qla2xxx_eh_abort(struct scsi_cmnd *);
 224static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 225static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 226static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 227static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 228
 229static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 230static int qla2x00_change_queue_type(struct scsi_device *, int);
 231
 232struct scsi_host_template qla2xxx_driver_template = {
 233        .module                 = THIS_MODULE,
 234        .name                   = QLA2XXX_DRIVER_NAME,
 235        .queuecommand           = qla2xxx_queuecommand,
 236
 237        .eh_abort_handler       = qla2xxx_eh_abort,
 238        .eh_device_reset_handler = qla2xxx_eh_device_reset,
 239        .eh_target_reset_handler = qla2xxx_eh_target_reset,
 240        .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 241        .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 242
 243        .slave_configure        = qla2xxx_slave_configure,
 244
 245        .slave_alloc            = qla2xxx_slave_alloc,
 246        .slave_destroy          = qla2xxx_slave_destroy,
 247        .scan_finished          = qla2xxx_scan_finished,
 248        .scan_start             = qla2xxx_scan_start,
 249        .change_queue_depth     = qla2x00_change_queue_depth,
 250        .change_queue_type      = qla2x00_change_queue_type,
 251        .this_id                = -1,
 252        .cmd_per_lun            = 3,
 253        .use_clustering         = ENABLE_CLUSTERING,
 254        .sg_tablesize           = SG_ALL,
 255
 256        .max_sectors            = 0xFFFF,
 257        .shost_attrs            = qla2x00_host_attrs,
 258};
 259
 260static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 261struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 262
 263/* TODO Convert to inlines
 264 *
 265 * Timer routines
 266 */
 267
 268__inline__ void
 269qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 270{
 271        init_timer(&vha->timer);
 272        vha->timer.expires = jiffies + interval * HZ;
 273        vha->timer.data = (unsigned long)vha;
 274        vha->timer.function = (void (*)(unsigned long))func;
 275        add_timer(&vha->timer);
 276        vha->timer_active = 1;
 277}
 278
 279static inline void
 280qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 281{
 282        /* Currently used for 82XX only. */
 283        if (vha->device_flags & DFLG_DEV_FAILED) {
 284                ql_dbg(ql_dbg_timer, vha, 0x600d,
 285                    "Device in a failed state, returning.\n");
 286                return;
 287        }
 288
 289        mod_timer(&vha->timer, jiffies + interval * HZ);
 290}
 291
 292static __inline__ void
 293qla2x00_stop_timer(scsi_qla_host_t *vha)
 294{
 295        del_timer_sync(&vha->timer);
 296        vha->timer_active = 0;
 297}
 298
 299static int qla2x00_do_dpc(void *data);
 300
 301static void qla2x00_rst_aen(scsi_qla_host_t *);
 302
 303static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 304        struct req_que **, struct rsp_que **);
 305static void qla2x00_free_fw_dump(struct qla_hw_data *);
 306static void qla2x00_mem_free(struct qla_hw_data *);
 307static void qla2x00_sp_free_dma(srb_t *);
 308
 309/* -------------------------------------------------------------------------- */
 310static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 311{
 312        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 313        ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 314                                GFP_KERNEL);
 315        if (!ha->req_q_map) {
 316                ql_log(ql_log_fatal, vha, 0x003b,
 317                    "Unable to allocate memory for request queue ptrs.\n");
 318                goto fail_req_map;
 319        }
 320
 321        ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 322                                GFP_KERNEL);
 323        if (!ha->rsp_q_map) {
 324                ql_log(ql_log_fatal, vha, 0x003c,
 325                    "Unable to allocate memory for response queue ptrs.\n");
 326                goto fail_rsp_map;
 327        }
 328        set_bit(0, ha->rsp_qid_map);
 329        set_bit(0, ha->req_qid_map);
 330        return 1;
 331
 332fail_rsp_map:
 333        kfree(ha->req_q_map);
 334        ha->req_q_map = NULL;
 335fail_req_map:
 336        return -ENOMEM;
 337}
 338
 339static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 340{
 341        if (req && req->ring)
 342                dma_free_coherent(&ha->pdev->dev,
 343                (req->length + 1) * sizeof(request_t),
 344                req->ring, req->dma);
 345
 346        kfree(req);
 347        req = NULL;
 348}
 349
 350static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 351{
 352        if (rsp && rsp->ring)
 353                dma_free_coherent(&ha->pdev->dev,
 354                (rsp->length + 1) * sizeof(response_t),
 355                rsp->ring, rsp->dma);
 356
 357        kfree(rsp);
 358        rsp = NULL;
 359}
 360
 361static void qla2x00_free_queues(struct qla_hw_data *ha)
 362{
 363        struct req_que *req;
 364        struct rsp_que *rsp;
 365        int cnt;
 366
 367        for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 368                req = ha->req_q_map[cnt];
 369                qla2x00_free_req_que(ha, req);
 370        }
 371        kfree(ha->req_q_map);
 372        ha->req_q_map = NULL;
 373
 374        for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 375                rsp = ha->rsp_q_map[cnt];
 376                qla2x00_free_rsp_que(ha, rsp);
 377        }
 378        kfree(ha->rsp_q_map);
 379        ha->rsp_q_map = NULL;
 380}
 381
 382static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 383{
 384        uint16_t options = 0;
 385        int ques, req, ret;
 386        struct qla_hw_data *ha = vha->hw;
 387
 388        if (!(ha->fw_attributes & BIT_6)) {
 389                ql_log(ql_log_warn, vha, 0x00d8,
 390                    "Firmware is not multi-queue capable.\n");
 391                goto fail;
 392        }
 393        if (ql2xmultique_tag) {
 394                /* create a request queue for IO */
 395                options |= BIT_7;
 396                req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 397                        QLA_DEFAULT_QUE_QOS);
 398                if (!req) {
 399                        ql_log(ql_log_warn, vha, 0x00e0,
 400                            "Failed to create request queue.\n");
 401                        goto fail;
 402                }
 403                ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 404                vha->req = ha->req_q_map[req];
 405                options |= BIT_1;
 406                for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 407                        ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 408                        if (!ret) {
 409                                ql_log(ql_log_warn, vha, 0x00e8,
 410                                    "Failed to create response queue.\n");
 411                                goto fail2;
 412                        }
 413                }
 414                ha->flags.cpu_affinity_enabled = 1;
 415                ql_dbg(ql_dbg_multiq, vha, 0xc007,
 416                    "CPU affinity mode enalbed, "
 417                    "no. of response queues:%d no. of request queues:%d.\n",
 418                    ha->max_rsp_queues, ha->max_req_queues);
 419                ql_dbg(ql_dbg_init, vha, 0x00e9,
 420                    "CPU affinity mode enalbed, "
 421                    "no. of response queues:%d no. of request queues:%d.\n",
 422                    ha->max_rsp_queues, ha->max_req_queues);
 423        }
 424        return 0;
 425fail2:
 426        qla25xx_delete_queues(vha);
 427        destroy_workqueue(ha->wq);
 428        ha->wq = NULL;
 429        vha->req = ha->req_q_map[0];
 430fail:
 431        ha->mqenable = 0;
 432        kfree(ha->req_q_map);
 433        kfree(ha->rsp_q_map);
 434        ha->max_req_queues = ha->max_rsp_queues = 1;
 435        return 1;
 436}
 437
 438static char *
 439qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 440{
 441        struct qla_hw_data *ha = vha->hw;
 442        static char *pci_bus_modes[] = {
 443                "33", "66", "100", "133",
 444        };
 445        uint16_t pci_bus;
 446
 447        strcpy(str, "PCI");
 448        pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 449        if (pci_bus) {
 450                strcat(str, "-X (");
 451                strcat(str, pci_bus_modes[pci_bus]);
 452        } else {
 453                pci_bus = (ha->pci_attr & BIT_8) >> 8;
 454                strcat(str, " (");
 455                strcat(str, pci_bus_modes[pci_bus]);
 456        }
 457        strcat(str, " MHz)");
 458
 459        return (str);
 460}
 461
 462static char *
 463qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 464{
 465        static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 466        struct qla_hw_data *ha = vha->hw;
 467        uint32_t pci_bus;
 468        int pcie_reg;
 469
 470        pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 471        if (pcie_reg) {
 472                char lwstr[6];
 473                uint16_t pcie_lstat, lspeed, lwidth;
 474
 475                pcie_reg += 0x12;
 476                pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 477                lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 478                lwidth = (pcie_lstat &
 479                    (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 480
 481                strcpy(str, "PCIe (");
 482                if (lspeed == 1)
 483                        strcat(str, "2.5GT/s ");
 484                else if (lspeed == 2)
 485                        strcat(str, "5.0GT/s ");
 486                else
 487                        strcat(str, "<unknown> ");
 488                snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 489                strcat(str, lwstr);
 490
 491                return str;
 492        }
 493
 494        strcpy(str, "PCI");
 495        pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 496        if (pci_bus == 0 || pci_bus == 8) {
 497                strcat(str, " (");
 498                strcat(str, pci_bus_modes[pci_bus >> 3]);
 499        } else {
 500                strcat(str, "-X ");
 501                if (pci_bus & BIT_2)
 502                        strcat(str, "Mode 2");
 503                else
 504                        strcat(str, "Mode 1");
 505                strcat(str, " (");
 506                strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 507        }
 508        strcat(str, " MHz)");
 509
 510        return str;
 511}
 512
 513static char *
 514qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 515{
 516        char un_str[10];
 517        struct qla_hw_data *ha = vha->hw;
 518
 519        sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 520            ha->fw_minor_version,
 521            ha->fw_subminor_version);
 522
 523        if (ha->fw_attributes & BIT_9) {
 524                strcat(str, "FLX");
 525                return (str);
 526        }
 527
 528        switch (ha->fw_attributes & 0xFF) {
 529        case 0x7:
 530                strcat(str, "EF");
 531                break;
 532        case 0x17:
 533                strcat(str, "TP");
 534                break;
 535        case 0x37:
 536                strcat(str, "IP");
 537                break;
 538        case 0x77:
 539                strcat(str, "VI");
 540                break;
 541        default:
 542                sprintf(un_str, "(%x)", ha->fw_attributes);
 543                strcat(str, un_str);
 544                break;
 545        }
 546        if (ha->fw_attributes & 0x100)
 547                strcat(str, "X");
 548
 549        return (str);
 550}
 551
 552static char *
 553qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 554{
 555        struct qla_hw_data *ha = vha->hw;
 556
 557        sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 558            ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 559        return str;
 560}
 561
 562static inline srb_t *
 563qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 564        struct scsi_cmnd *cmd)
 565{
 566        srb_t *sp;
 567        struct qla_hw_data *ha = vha->hw;
 568
 569        sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 570        if (!sp) {
 571                ql_log(ql_log_warn, vha, 0x3006,
 572                    "Memory allocation failed for sp.\n");
 573                return sp;
 574        }
 575
 576        atomic_set(&sp->ref_count, 1);
 577        sp->fcport = fcport;
 578        sp->cmd = cmd;
 579        sp->flags = 0;
 580        CMD_SP(cmd) = (void *)sp;
 581        sp->ctx = NULL;
 582
 583        return sp;
 584}
 585
 586static int
 587qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 588{
 589        scsi_qla_host_t *vha = shost_priv(host);
 590        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 591        struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 592        struct qla_hw_data *ha = vha->hw;
 593        struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 594        srb_t *sp;
 595        int rval;
 596
 597        if (ha->flags.eeh_busy) {
 598                if (ha->flags.pci_channel_io_perm_failure) {
 599                        ql_dbg(ql_dbg_io, vha, 0x3001,
 600                            "PCI Channel IO permanent failure, exiting "
 601                            "cmd=%p.\n", cmd);
 602                        cmd->result = DID_NO_CONNECT << 16;
 603                } else {
 604                        ql_dbg(ql_dbg_io, vha, 0x3002,
 605                            "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
 606                        cmd->result = DID_REQUEUE << 16;
 607                }
 608                goto qc24_fail_command;
 609        }
 610
 611        rval = fc_remote_port_chkready(rport);
 612        if (rval) {
 613                cmd->result = rval;
 614                ql_dbg(ql_dbg_io, vha, 0x3003,
 615                    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
 616                    cmd, rval);
 617                goto qc24_fail_command;
 618        }
 619
 620        if (!vha->flags.difdix_supported &&
 621                scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 622                        ql_dbg(ql_dbg_io, vha, 0x3004,
 623                            "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
 624                            cmd);
 625                        cmd->result = DID_NO_CONNECT << 16;
 626                        goto qc24_fail_command;
 627        }
 628
 629        if (!fcport) {
 630                cmd->result = DID_NO_CONNECT << 16;
 631                goto qc24_fail_command;
 632        }
 633
 634        if (atomic_read(&fcport->state) != FCS_ONLINE) {
 635                if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 636                        atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 637                        ql_dbg(ql_dbg_io, vha, 0x3005,
 638                            "Returning DNC, fcport_state=%d loop_state=%d.\n",
 639                            atomic_read(&fcport->state),
 640                            atomic_read(&base_vha->loop_state));
 641                        cmd->result = DID_NO_CONNECT << 16;
 642                        goto qc24_fail_command;
 643                }
 644                goto qc24_target_busy;
 645        }
 646
 647        sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 648        if (!sp)
 649                goto qc24_host_busy;
 650
 651        rval = ha->isp_ops->start_scsi(sp);
 652        if (rval != QLA_SUCCESS) {
 653                ql_dbg(ql_dbg_io, vha, 0x3013,
 654                    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
 655                goto qc24_host_busy_free_sp;
 656        }
 657
 658        return 0;
 659
 660qc24_host_busy_free_sp:
 661        qla2x00_sp_free_dma(sp);
 662        mempool_free(sp, ha->srb_mempool);
 663
 664qc24_host_busy:
 665        return SCSI_MLQUEUE_HOST_BUSY;
 666
 667qc24_target_busy:
 668        return SCSI_MLQUEUE_TARGET_BUSY;
 669
 670qc24_fail_command:
 671        cmd->scsi_done(cmd);
 672
 673        return 0;
 674}
 675
 676/*
 677 * qla2x00_eh_wait_on_command
 678 *    Waits for the command to be returned by the Firmware for some
 679 *    max time.
 680 *
 681 * Input:
 682 *    cmd = Scsi Command to wait on.
 683 *
 684 * Return:
 685 *    Not Found : 0
 686 *    Found : 1
 687 */
 688static int
 689qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 690{
 691#define ABORT_POLLING_PERIOD    1000
 692#define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 693        unsigned long wait_iter = ABORT_WAIT_ITER;
 694        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 695        struct qla_hw_data *ha = vha->hw;
 696        int ret = QLA_SUCCESS;
 697
 698        if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 699                ql_dbg(ql_dbg_taskm, vha, 0x8005,
 700                    "Return:eh_wait.\n");
 701                return ret;
 702        }
 703
 704        while (CMD_SP(cmd) && wait_iter--) {
 705                msleep(ABORT_POLLING_PERIOD);
 706        }
 707        if (CMD_SP(cmd))
 708                ret = QLA_FUNCTION_FAILED;
 709
 710        return ret;
 711}
 712
 713/*
 714 * qla2x00_wait_for_hba_online
 715 *    Wait till the HBA is online after going through
 716 *    <= MAX_RETRIES_OF_ISP_ABORT  or
 717 *    finally HBA is disabled ie marked offline
 718 *
 719 * Input:
 720 *     ha - pointer to host adapter structure
 721 *
 722 * Note:
 723 *    Does context switching-Release SPIN_LOCK
 724 *    (if any) before calling this routine.
 725 *
 726 * Return:
 727 *    Success (Adapter is online) : 0
 728 *    Failed  (Adapter is offline/disabled) : 1
 729 */
 730int
 731qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 732{
 733        int             return_status;
 734        unsigned long   wait_online;
 735        struct qla_hw_data *ha = vha->hw;
 736        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 737
 738        wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 739        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 740            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 741            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 742            ha->dpc_active) && time_before(jiffies, wait_online)) {
 743
 744                msleep(1000);
 745        }
 746        if (base_vha->flags.online)
 747                return_status = QLA_SUCCESS;
 748        else
 749                return_status = QLA_FUNCTION_FAILED;
 750
 751        return (return_status);
 752}
 753
 754/*
 755 * qla2x00_wait_for_reset_ready
 756 *    Wait till the HBA is online after going through
 757 *    <= MAX_RETRIES_OF_ISP_ABORT  or
 758 *    finally HBA is disabled ie marked offline or flash
 759 *    operations are in progress.
 760 *
 761 * Input:
 762 *     ha - pointer to host adapter structure
 763 *
 764 * Note:
 765 *    Does context switching-Release SPIN_LOCK
 766 *    (if any) before calling this routine.
 767 *
 768 * Return:
 769 *    Success (Adapter is online/no flash ops) : 0
 770 *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 771 */
 772static int
 773qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 774{
 775        int             return_status;
 776        unsigned long   wait_online;
 777        struct qla_hw_data *ha = vha->hw;
 778        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 779
 780        wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 781        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 782            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 783            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 784            ha->optrom_state != QLA_SWAITING ||
 785            ha->dpc_active) && time_before(jiffies, wait_online))
 786                msleep(1000);
 787
 788        if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 789                return_status = QLA_SUCCESS;
 790        else
 791                return_status = QLA_FUNCTION_FAILED;
 792
 793        ql_dbg(ql_dbg_taskm, vha, 0x8019,
 794            "%s return status=%d.\n", __func__, return_status);
 795
 796        return return_status;
 797}
 798
 799int
 800qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 801{
 802        int             return_status;
 803        unsigned long   wait_reset;
 804        struct qla_hw_data *ha = vha->hw;
 805        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 806
 807        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 808        while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 809            test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 810            test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 811            ha->dpc_active) && time_before(jiffies, wait_reset)) {
 812
 813                msleep(1000);
 814
 815                if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 816                    ha->flags.chip_reset_done)
 817                        break;
 818        }
 819        if (ha->flags.chip_reset_done)
 820                return_status = QLA_SUCCESS;
 821        else
 822                return_status = QLA_FUNCTION_FAILED;
 823
 824        return return_status;
 825}
 826
 827static void
 828sp_get(struct srb *sp)
 829{
 830        atomic_inc(&sp->ref_count);
 831}
 832
 833/**************************************************************************
 834* qla2xxx_eh_abort
 835*
 836* Description:
 837*    The abort function will abort the specified command.
 838*
 839* Input:
 840*    cmd = Linux SCSI command packet to be aborted.
 841*
 842* Returns:
 843*    Either SUCCESS or FAILED.
 844*
 845* Note:
 846*    Only return FAILED if command not returned by firmware.
 847**************************************************************************/
 848static int
 849qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 850{
 851        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 852        srb_t *sp;
 853        int ret;
 854        unsigned int id, lun;
 855        unsigned long flags;
 856        int wait = 0;
 857        struct qla_hw_data *ha = vha->hw;
 858
 859        if (!CMD_SP(cmd))
 860                return SUCCESS;
 861
 862        ret = fc_block_scsi_eh(cmd);
 863        if (ret != 0)
 864                return ret;
 865        ret = SUCCESS;
 866
 867        id = cmd->device->id;
 868        lun = cmd->device->lun;
 869
 870        spin_lock_irqsave(&ha->hardware_lock, flags);
 871        sp = (srb_t *) CMD_SP(cmd);
 872        if (!sp) {
 873                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 874                return SUCCESS;
 875        }
 876
 877        ql_dbg(ql_dbg_taskm, vha, 0x8002,
 878            "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
 879            vha->host_no, id, lun, sp, cmd);
 880
 881        /* Get a reference to the sp and drop the lock.*/
 882        sp_get(sp);
 883
 884        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 885        if (ha->isp_ops->abort_command(sp)) {
 886                ret = FAILED;
 887                ql_dbg(ql_dbg_taskm, vha, 0x8003,
 888                    "Abort command mbx failed cmd=%p.\n", cmd);
 889        } else {
 890                ql_dbg(ql_dbg_taskm, vha, 0x8004,
 891                    "Abort command mbx success cmd=%p.\n", cmd);
 892                wait = 1;
 893        }
 894
 895        spin_lock_irqsave(&ha->hardware_lock, flags);
 896        qla2x00_sp_compl(ha, sp);
 897        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 898
 899        /* Did the command return during mailbox execution? */
 900        if (ret == FAILED && !CMD_SP(cmd))
 901                ret = SUCCESS;
 902
 903        /* Wait for the command to be returned. */
 904        if (wait) {
 905                if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 906                        ql_log(ql_log_warn, vha, 0x8006,
 907                            "Abort handler timed out cmd=%p.\n", cmd);
 908                        ret = FAILED;
 909                }
 910        }
 911
 912        ql_log(ql_log_info, vha, 0x801c,
 913            "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
 914            vha->host_no, id, lun, wait, ret);
 915
 916        return ret;
 917}
 918
 919int
 920qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 921        unsigned int l, enum nexus_wait_type type)
 922{
 923        int cnt, match, status;
 924        unsigned long flags;
 925        struct qla_hw_data *ha = vha->hw;
 926        struct req_que *req;
 927        srb_t *sp;
 928
 929        status = QLA_SUCCESS;
 930
 931        spin_lock_irqsave(&ha->hardware_lock, flags);
 932        req = vha->req;
 933        for (cnt = 1; status == QLA_SUCCESS &&
 934                cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 935                sp = req->outstanding_cmds[cnt];
 936                if (!sp)
 937                        continue;
 938                if ((sp->ctx) && !IS_PROT_IO(sp))
 939                        continue;
 940                if (vha->vp_idx != sp->fcport->vha->vp_idx)
 941                        continue;
 942                match = 0;
 943                switch (type) {
 944                case WAIT_HOST:
 945                        match = 1;
 946                        break;
 947                case WAIT_TARGET:
 948                        match = sp->cmd->device->id == t;
 949                        break;
 950                case WAIT_LUN:
 951                        match = (sp->cmd->device->id == t &&
 952                                sp->cmd->device->lun == l);
 953                        break;
 954                }
 955                if (!match)
 956                        continue;
 957
 958                spin_unlock_irqrestore(&ha->hardware_lock, flags);
 959                status = qla2x00_eh_wait_on_command(sp->cmd);
 960                spin_lock_irqsave(&ha->hardware_lock, flags);
 961        }
 962        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 963
 964        return status;
 965}
 966
 967static char *reset_errors[] = {
 968        "HBA not online",
 969        "HBA not ready",
 970        "Task management failed",
 971        "Waiting for command completions",
 972};
 973
 974static int
 975__qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 976    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 977{
 978        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 979        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 980        int err;
 981
 982        if (!fcport) {
 983                return FAILED;
 984        }
 985
 986        err = fc_block_scsi_eh(cmd);
 987        if (err != 0)
 988                return err;
 989
 990        ql_log(ql_log_info, vha, 0x8009,
 991            "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
 992            cmd->device->id, cmd->device->lun, cmd);
 993
 994        err = 0;
 995        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 996                ql_log(ql_log_warn, vha, 0x800a,
 997                    "Wait for hba online failed for cmd=%p.\n", cmd);
 998                goto eh_reset_failed;
 999        }
1000        err = 2;
1001        if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1002                != QLA_SUCCESS) {
1003                ql_log(ql_log_warn, vha, 0x800c,
1004                    "do_reset failed for cmd=%p.\n", cmd);
1005                goto eh_reset_failed;
1006        }
1007        err = 3;
1008        if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1009            cmd->device->lun, type) != QLA_SUCCESS) {
1010                ql_log(ql_log_warn, vha, 0x800d,
1011                    "wait for peding cmds failed for cmd=%p.\n", cmd);
1012                goto eh_reset_failed;
1013        }
1014
1015        ql_log(ql_log_info, vha, 0x800e,
1016            "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1017            vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1018
1019        return SUCCESS;
1020
1021eh_reset_failed:
1022        ql_log(ql_log_info, vha, 0x800f,
1023            "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1024            reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1025            cmd);
1026        return FAILED;
1027}
1028
1029static int
1030qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1031{
1032        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1033        struct qla_hw_data *ha = vha->hw;
1034
1035        return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1036            ha->isp_ops->lun_reset);
1037}
1038
1039static int
1040qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1041{
1042        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1043        struct qla_hw_data *ha = vha->hw;
1044
1045        return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1046            ha->isp_ops->target_reset);
1047}
1048
1049/**************************************************************************
1050* qla2xxx_eh_bus_reset
1051*
1052* Description:
1053*    The bus reset function will reset the bus and abort any executing
1054*    commands.
1055*
1056* Input:
1057*    cmd = Linux SCSI command packet of the command that cause the
1058*          bus reset.
1059*
1060* Returns:
1061*    SUCCESS/FAILURE (defined as macro in scsi.h).
1062*
1063**************************************************************************/
1064static int
1065qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1066{
1067        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1068        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1069        int ret = FAILED;
1070        unsigned int id, lun;
1071
1072        id = cmd->device->id;
1073        lun = cmd->device->lun;
1074
1075        if (!fcport) {
1076                return ret;
1077        }
1078
1079        ret = fc_block_scsi_eh(cmd);
1080        if (ret != 0)
1081                return ret;
1082        ret = FAILED;
1083
1084        ql_log(ql_log_info, vha, 0x8012,
1085            "BUS RESET ISSUED nexus=%ld:%d%d.\n", vha->host_no, id, lun);
1086
1087        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1088                ql_log(ql_log_fatal, vha, 0x8013,
1089                    "Wait for hba online failed board disabled.\n");
1090                goto eh_bus_reset_done;
1091        }
1092
1093        if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1094                ret = SUCCESS;
1095
1096        if (ret == FAILED)
1097                goto eh_bus_reset_done;
1098
1099        /* Flush outstanding commands. */
1100        if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1101            QLA_SUCCESS) {
1102                ql_log(ql_log_warn, vha, 0x8014,
1103                    "Wait for pending commands failed.\n");
1104                ret = FAILED;
1105        }
1106
1107eh_bus_reset_done:
1108        ql_log(ql_log_warn, vha, 0x802b,
1109            "BUS RESET %s nexus=%ld:%d:%d.\n",
1110            (ret == FAILED) ? "FAILED" : "SUCCEDED", vha->host_no, id, lun);
1111
1112        return ret;
1113}
1114
1115/**************************************************************************
1116* qla2xxx_eh_host_reset
1117*
1118* Description:
1119*    The reset function will reset the Adapter.
1120*
1121* Input:
1122*      cmd = Linux SCSI command packet of the command that cause the
1123*            adapter reset.
1124*
1125* Returns:
1126*      Either SUCCESS or FAILED.
1127*
1128* Note:
1129**************************************************************************/
1130static int
1131qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1132{
1133        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1134        struct qla_hw_data *ha = vha->hw;
1135        int ret = FAILED;
1136        unsigned int id, lun;
1137        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1138
1139        id = cmd->device->id;
1140        lun = cmd->device->lun;
1141
1142        ql_log(ql_log_info, vha, 0x8018,
1143            "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1144
1145        if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1146                goto eh_host_reset_lock;
1147
1148        if (vha != base_vha) {
1149                if (qla2x00_vp_abort_isp(vha))
1150                        goto eh_host_reset_lock;
1151        } else {
1152                if (IS_QLA82XX(vha->hw)) {
1153                        if (!qla82xx_fcoe_ctx_reset(vha)) {
1154                                /* Ctx reset success */
1155                                ret = SUCCESS;
1156                                goto eh_host_reset_lock;
1157                        }
1158                        /* fall thru if ctx reset failed */
1159                }
1160                if (ha->wq)
1161                        flush_workqueue(ha->wq);
1162
1163                set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1164                if (ha->isp_ops->abort_isp(base_vha)) {
1165                        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1166                        /* failed. schedule dpc to try */
1167                        set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1168
1169                        if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1170                                ql_log(ql_log_warn, vha, 0x802a,
1171                                    "wait for hba online failed.\n");
1172                                goto eh_host_reset_lock;
1173                        }
1174                }
1175                clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1176        }
1177
1178        /* Waiting for command to be returned to OS.*/
1179        if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1180                QLA_SUCCESS)
1181                ret = SUCCESS;
1182
1183eh_host_reset_lock:
1184        ql_log(ql_log_info, vha, 0x8017,
1185            "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1186            (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1187
1188        return ret;
1189}
1190
1191/*
1192* qla2x00_loop_reset
1193*      Issue loop reset.
1194*
1195* Input:
1196*      ha = adapter block pointer.
1197*
1198* Returns:
1199*      0 = success
1200*/
1201int
1202qla2x00_loop_reset(scsi_qla_host_t *vha)
1203{
1204        int ret;
1205        struct fc_port *fcport;
1206        struct qla_hw_data *ha = vha->hw;
1207
1208        if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1209                list_for_each_entry(fcport, &vha->vp_fcports, list) {
1210                        if (fcport->port_type != FCT_TARGET)
1211                                continue;
1212
1213                        ret = ha->isp_ops->target_reset(fcport, 0, 0);
1214                        if (ret != QLA_SUCCESS) {
1215                                ql_dbg(ql_dbg_taskm, vha, 0x802c,
1216                                    "Bus Reset failed: Target Reset=%d "
1217                                    "d_id=%x.\n", ret, fcport->d_id.b24);
1218                        }
1219                }
1220        }
1221
1222        if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1223                ret = qla2x00_full_login_lip(vha);
1224                if (ret != QLA_SUCCESS) {
1225                        ql_dbg(ql_dbg_taskm, vha, 0x802d,
1226                            "full_login_lip=%d.\n", ret);
1227                }
1228                atomic_set(&vha->loop_state, LOOP_DOWN);
1229                atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1230                qla2x00_mark_all_devices_lost(vha, 0);
1231        }
1232
1233        if (ha->flags.enable_lip_reset) {
1234                ret = qla2x00_lip_reset(vha);
1235                if (ret != QLA_SUCCESS)
1236                        ql_dbg(ql_dbg_taskm, vha, 0x802e,
1237                            "lip_reset failed (%d).\n", ret);
1238        }
1239
1240        /* Issue marker command only when we are going to start the I/O */
1241        vha->marker_needed = 1;
1242
1243        return QLA_SUCCESS;
1244}
1245
1246void
1247qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1248{
1249        int que, cnt;
1250        unsigned long flags;
1251        srb_t *sp;
1252        struct srb_ctx *ctx;
1253        struct qla_hw_data *ha = vha->hw;
1254        struct req_que *req;
1255
1256        spin_lock_irqsave(&ha->hardware_lock, flags);
1257        for (que = 0; que < ha->max_req_queues; que++) {
1258                req = ha->req_q_map[que];
1259                if (!req)
1260                        continue;
1261                for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1262                        sp = req->outstanding_cmds[cnt];
1263                        if (sp) {
1264                                req->outstanding_cmds[cnt] = NULL;
1265                                if (!sp->ctx ||
1266                                        (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1267                                        IS_PROT_IO(sp)) {
1268                                        sp->cmd->result = res;
1269                                        qla2x00_sp_compl(ha, sp);
1270                                } else {
1271                                        ctx = sp->ctx;
1272                                        if (ctx->type == SRB_ELS_CMD_RPT ||
1273                                            ctx->type == SRB_ELS_CMD_HST ||
1274                                            ctx->type == SRB_CT_CMD) {
1275                                                struct fc_bsg_job *bsg_job =
1276                                                    ctx->u.bsg_job;
1277                                                if (bsg_job->request->msgcode
1278                                                    == FC_BSG_HST_CT)
1279                                                        kfree(sp->fcport);
1280                                                bsg_job->req->errors = 0;
1281                                                bsg_job->reply->result = res;
1282                                                bsg_job->job_done(bsg_job);
1283                                                kfree(sp->ctx);
1284                                                mempool_free(sp,
1285                                                        ha->srb_mempool);
1286                                        } else {
1287                                                ctx->u.iocb_cmd->free(sp);
1288                                        }
1289                                }
1290                        }
1291                }
1292        }
1293        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1294}
1295
1296static int
1297qla2xxx_slave_alloc(struct scsi_device *sdev)
1298{
1299        struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1300
1301        if (!rport || fc_remote_port_chkready(rport))
1302                return -ENXIO;
1303
1304        sdev->hostdata = *(fc_port_t **)rport->dd_data;
1305
1306        return 0;
1307}
1308
1309static int
1310qla2xxx_slave_configure(struct scsi_device *sdev)
1311{
1312        scsi_qla_host_t *vha = shost_priv(sdev->host);
1313        struct req_que *req = vha->req;
1314
1315        if (sdev->tagged_supported)
1316                scsi_activate_tcq(sdev, req->max_q_depth);
1317        else
1318                scsi_deactivate_tcq(sdev, req->max_q_depth);
1319        return 0;
1320}
1321
1322static void
1323qla2xxx_slave_destroy(struct scsi_device *sdev)
1324{
1325        sdev->hostdata = NULL;
1326}
1327
1328static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1329{
1330        fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1331
1332        if (!scsi_track_queue_full(sdev, qdepth))
1333                return;
1334
1335        ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1336            "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1337            sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1338}
1339
1340static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1341{
1342        fc_port_t *fcport = sdev->hostdata;
1343        struct scsi_qla_host *vha = fcport->vha;
1344        struct req_que *req = NULL;
1345
1346        req = vha->req;
1347        if (!req)
1348                return;
1349
1350        if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1351                return;
1352
1353        if (sdev->ordered_tags)
1354                scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1355        else
1356                scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1357
1358        ql_dbg(ql_dbg_io, vha, 0x302a,
1359            "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1360            sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1361}
1362
1363static int
1364qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1365{
1366        switch (reason) {
1367        case SCSI_QDEPTH_DEFAULT:
1368                scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1369                break;
1370        case SCSI_QDEPTH_QFULL:
1371                qla2x00_handle_queue_full(sdev, qdepth);
1372                break;
1373        case SCSI_QDEPTH_RAMP_UP:
1374                qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1375                break;
1376        default:
1377                return -EOPNOTSUPP;
1378        }
1379
1380        return sdev->queue_depth;
1381}
1382
1383static int
1384qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1385{
1386        if (sdev->tagged_supported) {
1387                scsi_set_tag_type(sdev, tag_type);
1388                if (tag_type)
1389                        scsi_activate_tcq(sdev, sdev->queue_depth);
1390                else
1391                        scsi_deactivate_tcq(sdev, sdev->queue_depth);
1392        } else
1393                tag_type = 0;
1394
1395        return tag_type;
1396}
1397
1398/**
1399 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1400 * @ha: HA context
1401 *
1402 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1403 * supported addressing method.
1404 */
1405static void
1406qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1407{
1408        /* Assume a 32bit DMA mask. */
1409        ha->flags.enable_64bit_addressing = 0;
1410
1411        if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1412                /* Any upper-dword bits set? */
1413                if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1414                    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1415                        /* Ok, a 64bit DMA mask is applicable. */
1416                        ha->flags.enable_64bit_addressing = 1;
1417                        ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1418                        ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1419                        return;
1420                }
1421        }
1422
1423        dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1424        pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1425}
1426
1427static void
1428qla2x00_enable_intrs(struct qla_hw_data *ha)
1429{
1430        unsigned long flags = 0;
1431        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1432
1433        spin_lock_irqsave(&ha->hardware_lock, flags);
1434        ha->interrupts_on = 1;
1435        /* enable risc and host interrupts */
1436        WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1437        RD_REG_WORD(&reg->ictrl);
1438        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1439
1440}
1441
1442static void
1443qla2x00_disable_intrs(struct qla_hw_data *ha)
1444{
1445        unsigned long flags = 0;
1446        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1447
1448        spin_lock_irqsave(&ha->hardware_lock, flags);
1449        ha->interrupts_on = 0;
1450        /* disable risc and host interrupts */
1451        WRT_REG_WORD(&reg->ictrl, 0);
1452        RD_REG_WORD(&reg->ictrl);
1453        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1454}
1455
1456static void
1457qla24xx_enable_intrs(struct qla_hw_data *ha)
1458{
1459        unsigned long flags = 0;
1460        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1461
1462        spin_lock_irqsave(&ha->hardware_lock, flags);
1463        ha->interrupts_on = 1;
1464        WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1465        RD_REG_DWORD(&reg->ictrl);
1466        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1467}
1468
1469static void
1470qla24xx_disable_intrs(struct qla_hw_data *ha)
1471{
1472        unsigned long flags = 0;
1473        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1474
1475        if (IS_NOPOLLING_TYPE(ha))
1476                return;
1477        spin_lock_irqsave(&ha->hardware_lock, flags);
1478        ha->interrupts_on = 0;
1479        WRT_REG_DWORD(&reg->ictrl, 0);
1480        RD_REG_DWORD(&reg->ictrl);
1481        spin_unlock_irqrestore(&ha->hardware_lock, flags);
1482}
1483
1484static int
1485qla2x00_iospace_config(struct qla_hw_data *ha)
1486{
1487        resource_size_t pio;
1488        uint16_t msix;
1489        int cpus;
1490
1491        if (IS_QLA82XX(ha))
1492                return qla82xx_iospace_config(ha);
1493
1494        if (pci_request_selected_regions(ha->pdev, ha->bars,
1495            QLA2XXX_DRIVER_NAME)) {
1496                ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1497                    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1498                    pci_name(ha->pdev));
1499                goto iospace_error_exit;
1500        }
1501        if (!(ha->bars & 1))
1502                goto skip_pio;
1503
1504        /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1505        pio = pci_resource_start(ha->pdev, 0);
1506        if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1507                if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1508                        ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1509                            "Invalid pci I/O region size (%s).\n",
1510                            pci_name(ha->pdev));
1511                        pio = 0;
1512                }
1513        } else {
1514                ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1515                    "Region #0 no a PIO resource (%s).\n",
1516                    pci_name(ha->pdev));
1517                pio = 0;
1518        }
1519        ha->pio_address = pio;
1520        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1521            "PIO address=%llu.\n",
1522            (unsigned long long)ha->pio_address);
1523
1524skip_pio:
1525        /* Use MMIO operations for all accesses. */
1526        if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1527                ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1528                    "Region #1 not an MMIO resource (%s), aborting.\n",
1529                    pci_name(ha->pdev));
1530                goto iospace_error_exit;
1531        }
1532        if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1533                ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1534                    "Invalid PCI mem region size (%s), aborting.\n",
1535                    pci_name(ha->pdev));
1536                goto iospace_error_exit;
1537        }
1538
1539        ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1540        if (!ha->iobase) {
1541                ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1542                    "Cannot remap MMIO (%s), aborting.\n",
1543                    pci_name(ha->pdev));
1544                goto iospace_error_exit;
1545        }
1546
1547        /* Determine queue resources */
1548        ha->max_req_queues = ha->max_rsp_queues = 1;
1549        if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1550                (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1551                (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1552                goto mqiobase_exit;
1553
1554        ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1555                        pci_resource_len(ha->pdev, 3));
1556        if (ha->mqiobase) {
1557                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1558                    "MQIO Base=%p.\n", ha->mqiobase);
1559                /* Read MSIX vector size of the board */
1560                pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1561                ha->msix_count = msix;
1562                /* Max queues are bounded by available msix vectors */
1563                /* queue 0 uses two msix vectors */
1564                if (ql2xmultique_tag) {
1565                        cpus = num_online_cpus();
1566                        ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1567                                (cpus + 1) : (ha->msix_count - 1);
1568                        ha->max_req_queues = 2;
1569                } else if (ql2xmaxqueues > 1) {
1570                        ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1571                            QLA_MQ_SIZE : ql2xmaxqueues;
1572                        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1573                            "QoS mode set, max no of request queues:%d.\n",
1574                            ha->max_req_queues);
1575                        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1576                            "QoS mode set, max no of request queues:%d.\n",
1577                            ha->max_req_queues);
1578                }
1579                ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1580                    "MSI-X vector count: %d.\n", msix);
1581        } else
1582                ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1583                    "BAR 3 not enabled.\n");
1584
1585mqiobase_exit:
1586        ha->msix_count = ha->max_rsp_queues + 1;
1587        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1588            "MSIX Count:%d.\n", ha->msix_count);
1589        return (0);
1590
1591iospace_error_exit:
1592        return (-ENOMEM);
1593}
1594
1595
1596static struct isp_operations qla2100_isp_ops = {
1597        .pci_config             = qla2100_pci_config,
1598        .reset_chip             = qla2x00_reset_chip,
1599        .chip_diag              = qla2x00_chip_diag,
1600        .config_rings           = qla2x00_config_rings,
1601        .reset_adapter          = qla2x00_reset_adapter,
1602        .nvram_config           = qla2x00_nvram_config,
1603        .update_fw_options      = qla2x00_update_fw_options,
1604        .load_risc              = qla2x00_load_risc,
1605        .pci_info_str           = qla2x00_pci_info_str,
1606        .fw_version_str         = qla2x00_fw_version_str,
1607        .intr_handler           = qla2100_intr_handler,
1608        .enable_intrs           = qla2x00_enable_intrs,
1609        .disable_intrs          = qla2x00_disable_intrs,
1610        .abort_command          = qla2x00_abort_command,
1611        .target_reset           = qla2x00_abort_target,
1612        .lun_reset              = qla2x00_lun_reset,
1613        .fabric_login           = qla2x00_login_fabric,
1614        .fabric_logout          = qla2x00_fabric_logout,
1615        .calc_req_entries       = qla2x00_calc_iocbs_32,
1616        .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1617        .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1618        .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1619        .read_nvram             = qla2x00_read_nvram_data,
1620        .write_nvram            = qla2x00_write_nvram_data,
1621        .fw_dump                = qla2100_fw_dump,
1622        .beacon_on              = NULL,
1623        .beacon_off             = NULL,
1624        .beacon_blink           = NULL,
1625        .read_optrom            = qla2x00_read_optrom_data,
1626        .write_optrom           = qla2x00_write_optrom_data,
1627        .get_flash_version      = qla2x00_get_flash_version,
1628        .start_scsi             = qla2x00_start_scsi,
1629        .abort_isp              = qla2x00_abort_isp,
1630        .iospace_config         = qla2x00_iospace_config,
1631};
1632
1633static struct isp_operations qla2300_isp_ops = {
1634        .pci_config             = qla2300_pci_config,
1635        .reset_chip             = qla2x00_reset_chip,
1636        .chip_diag              = qla2x00_chip_diag,
1637        .config_rings           = qla2x00_config_rings,
1638        .reset_adapter          = qla2x00_reset_adapter,
1639        .nvram_config           = qla2x00_nvram_config,
1640        .update_fw_options      = qla2x00_update_fw_options,
1641        .load_risc              = qla2x00_load_risc,
1642        .pci_info_str           = qla2x00_pci_info_str,
1643        .fw_version_str         = qla2x00_fw_version_str,
1644        .intr_handler           = qla2300_intr_handler,
1645        .enable_intrs           = qla2x00_enable_intrs,
1646        .disable_intrs          = qla2x00_disable_intrs,
1647        .abort_command          = qla2x00_abort_command,
1648        .target_reset           = qla2x00_abort_target,
1649        .lun_reset              = qla2x00_lun_reset,
1650        .fabric_login           = qla2x00_login_fabric,
1651        .fabric_logout          = qla2x00_fabric_logout,
1652        .calc_req_entries       = qla2x00_calc_iocbs_32,
1653        .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1654        .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1655        .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1656        .read_nvram             = qla2x00_read_nvram_data,
1657        .write_nvram            = qla2x00_write_nvram_data,
1658        .fw_dump                = qla2300_fw_dump,
1659        .beacon_on              = qla2x00_beacon_on,
1660        .beacon_off             = qla2x00_beacon_off,
1661        .beacon_blink           = qla2x00_beacon_blink,
1662        .read_optrom            = qla2x00_read_optrom_data,
1663        .write_optrom           = qla2x00_write_optrom_data,
1664        .get_flash_version      = qla2x00_get_flash_version,
1665        .start_scsi             = qla2x00_start_scsi,
1666        .abort_isp              = qla2x00_abort_isp,
1667        .iospace_config         = qla2x00_iospace_config,
1668};
1669
1670static struct isp_operations qla24xx_isp_ops = {
1671        .pci_config             = qla24xx_pci_config,
1672        .reset_chip             = qla24xx_reset_chip,
1673        .chip_diag              = qla24xx_chip_diag,
1674        .config_rings           = qla24xx_config_rings,
1675        .reset_adapter          = qla24xx_reset_adapter,
1676        .nvram_config           = qla24xx_nvram_config,
1677        .update_fw_options      = qla24xx_update_fw_options,
1678        .load_risc              = qla24xx_load_risc,
1679        .pci_info_str           = qla24xx_pci_info_str,
1680        .fw_version_str         = qla24xx_fw_version_str,
1681        .intr_handler           = qla24xx_intr_handler,
1682        .enable_intrs           = qla24xx_enable_intrs,
1683        .disable_intrs          = qla24xx_disable_intrs,
1684        .abort_command          = qla24xx_abort_command,
1685        .target_reset           = qla24xx_abort_target,
1686        .lun_reset              = qla24xx_lun_reset,
1687        .fabric_login           = qla24xx_login_fabric,
1688        .fabric_logout          = qla24xx_fabric_logout,
1689        .calc_req_entries       = NULL,
1690        .build_iocbs            = NULL,
1691        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1692        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1693        .read_nvram             = qla24xx_read_nvram_data,
1694        .write_nvram            = qla24xx_write_nvram_data,
1695        .fw_dump                = qla24xx_fw_dump,
1696        .beacon_on              = qla24xx_beacon_on,
1697        .beacon_off             = qla24xx_beacon_off,
1698        .beacon_blink           = qla24xx_beacon_blink,
1699        .read_optrom            = qla24xx_read_optrom_data,
1700        .write_optrom           = qla24xx_write_optrom_data,
1701        .get_flash_version      = qla24xx_get_flash_version,
1702        .start_scsi             = qla24xx_start_scsi,
1703        .abort_isp              = qla2x00_abort_isp,
1704        .iospace_config         = qla2x00_iospace_config,
1705};
1706
1707static struct isp_operations qla25xx_isp_ops = {
1708        .pci_config             = qla25xx_pci_config,
1709        .reset_chip             = qla24xx_reset_chip,
1710        .chip_diag              = qla24xx_chip_diag,
1711        .config_rings           = qla24xx_config_rings,
1712        .reset_adapter          = qla24xx_reset_adapter,
1713        .nvram_config           = qla24xx_nvram_config,
1714        .update_fw_options      = qla24xx_update_fw_options,
1715        .load_risc              = qla24xx_load_risc,
1716        .pci_info_str           = qla24xx_pci_info_str,
1717        .fw_version_str         = qla24xx_fw_version_str,
1718        .intr_handler           = qla24xx_intr_handler,
1719        .enable_intrs           = qla24xx_enable_intrs,
1720        .disable_intrs          = qla24xx_disable_intrs,
1721        .abort_command          = qla24xx_abort_command,
1722        .target_reset           = qla24xx_abort_target,
1723        .lun_reset              = qla24xx_lun_reset,
1724        .fabric_login           = qla24xx_login_fabric,
1725        .fabric_logout          = qla24xx_fabric_logout,
1726        .calc_req_entries       = NULL,
1727        .build_iocbs            = NULL,
1728        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1729        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1730        .read_nvram             = qla25xx_read_nvram_data,
1731        .write_nvram            = qla25xx_write_nvram_data,
1732        .fw_dump                = qla25xx_fw_dump,
1733        .beacon_on              = qla24xx_beacon_on,
1734        .beacon_off             = qla24xx_beacon_off,
1735        .beacon_blink           = qla24xx_beacon_blink,
1736        .read_optrom            = qla25xx_read_optrom_data,
1737        .write_optrom           = qla24xx_write_optrom_data,
1738        .get_flash_version      = qla24xx_get_flash_version,
1739        .start_scsi             = qla24xx_dif_start_scsi,
1740        .abort_isp              = qla2x00_abort_isp,
1741        .iospace_config         = qla2x00_iospace_config,
1742};
1743
1744static struct isp_operations qla81xx_isp_ops = {
1745        .pci_config             = qla25xx_pci_config,
1746        .reset_chip             = qla24xx_reset_chip,
1747        .chip_diag              = qla24xx_chip_diag,
1748        .config_rings           = qla24xx_config_rings,
1749        .reset_adapter          = qla24xx_reset_adapter,
1750        .nvram_config           = qla81xx_nvram_config,
1751        .update_fw_options      = qla81xx_update_fw_options,
1752        .load_risc              = qla81xx_load_risc,
1753        .pci_info_str           = qla24xx_pci_info_str,
1754        .fw_version_str         = qla24xx_fw_version_str,
1755        .intr_handler           = qla24xx_intr_handler,
1756        .enable_intrs           = qla24xx_enable_intrs,
1757        .disable_intrs          = qla24xx_disable_intrs,
1758        .abort_command          = qla24xx_abort_command,
1759        .target_reset           = qla24xx_abort_target,
1760        .lun_reset              = qla24xx_lun_reset,
1761        .fabric_login           = qla24xx_login_fabric,
1762        .fabric_logout          = qla24xx_fabric_logout,
1763        .calc_req_entries       = NULL,
1764        .build_iocbs            = NULL,
1765        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1766        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1767        .read_nvram             = NULL,
1768        .write_nvram            = NULL,
1769        .fw_dump                = qla81xx_fw_dump,
1770        .beacon_on              = qla24xx_beacon_on,
1771        .beacon_off             = qla24xx_beacon_off,
1772        .beacon_blink           = qla24xx_beacon_blink,
1773        .read_optrom            = qla25xx_read_optrom_data,
1774        .write_optrom           = qla24xx_write_optrom_data,
1775        .get_flash_version      = qla24xx_get_flash_version,
1776        .start_scsi             = qla24xx_dif_start_scsi,
1777        .abort_isp              = qla2x00_abort_isp,
1778        .iospace_config         = qla2x00_iospace_config,
1779};
1780
1781static struct isp_operations qla82xx_isp_ops = {
1782        .pci_config             = qla82xx_pci_config,
1783        .reset_chip             = qla82xx_reset_chip,
1784        .chip_diag              = qla24xx_chip_diag,
1785        .config_rings           = qla82xx_config_rings,
1786        .reset_adapter          = qla24xx_reset_adapter,
1787        .nvram_config           = qla81xx_nvram_config,
1788        .update_fw_options      = qla24xx_update_fw_options,
1789        .load_risc              = qla82xx_load_risc,
1790        .pci_info_str           = qla82xx_pci_info_str,
1791        .fw_version_str         = qla24xx_fw_version_str,
1792        .intr_handler           = qla82xx_intr_handler,
1793        .enable_intrs           = qla82xx_enable_intrs,
1794        .disable_intrs          = qla82xx_disable_intrs,
1795        .abort_command          = qla24xx_abort_command,
1796        .target_reset           = qla24xx_abort_target,
1797        .lun_reset              = qla24xx_lun_reset,
1798        .fabric_login           = qla24xx_login_fabric,
1799        .fabric_logout          = qla24xx_fabric_logout,
1800        .calc_req_entries       = NULL,
1801        .build_iocbs            = NULL,
1802        .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1803        .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1804        .read_nvram             = qla24xx_read_nvram_data,
1805        .write_nvram            = qla24xx_write_nvram_data,
1806        .fw_dump                = qla24xx_fw_dump,
1807        .beacon_on              = qla82xx_beacon_on,
1808        .beacon_off             = qla82xx_beacon_off,
1809        .beacon_blink           = NULL,
1810        .read_optrom            = qla82xx_read_optrom_data,
1811        .write_optrom           = qla82xx_write_optrom_data,
1812        .get_flash_version      = qla24xx_get_flash_version,
1813        .start_scsi             = qla82xx_start_scsi,
1814        .abort_isp              = qla82xx_abort_isp,
1815        .iospace_config         = qla82xx_iospace_config,
1816};
1817
1818static inline void
1819qla2x00_set_isp_flags(struct qla_hw_data *ha)
1820{
1821        ha->device_type = DT_EXTENDED_IDS;
1822        switch (ha->pdev->device) {
1823        case PCI_DEVICE_ID_QLOGIC_ISP2100:
1824                ha->device_type |= DT_ISP2100;
1825                ha->device_type &= ~DT_EXTENDED_IDS;
1826                ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1827                break;
1828        case PCI_DEVICE_ID_QLOGIC_ISP2200:
1829                ha->device_type |= DT_ISP2200;
1830                ha->device_type &= ~DT_EXTENDED_IDS;
1831                ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1832                break;
1833        case PCI_DEVICE_ID_QLOGIC_ISP2300:
1834                ha->device_type |= DT_ISP2300;
1835                ha->device_type |= DT_ZIO_SUPPORTED;
1836                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1837                break;
1838        case PCI_DEVICE_ID_QLOGIC_ISP2312:
1839                ha->device_type |= DT_ISP2312;
1840                ha->device_type |= DT_ZIO_SUPPORTED;
1841                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1842                break;
1843        case PCI_DEVICE_ID_QLOGIC_ISP2322:
1844                ha->device_type |= DT_ISP2322;
1845                ha->device_type |= DT_ZIO_SUPPORTED;
1846                if (ha->pdev->subsystem_vendor == 0x1028 &&
1847                    ha->pdev->subsystem_device == 0x0170)
1848                        ha->device_type |= DT_OEM_001;
1849                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1850                break;
1851        case PCI_DEVICE_ID_QLOGIC_ISP6312:
1852                ha->device_type |= DT_ISP6312;
1853                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1854                break;
1855        case PCI_DEVICE_ID_QLOGIC_ISP6322:
1856                ha->device_type |= DT_ISP6322;
1857                ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1858                break;
1859        case PCI_DEVICE_ID_QLOGIC_ISP2422:
1860                ha->device_type |= DT_ISP2422;
1861                ha->device_type |= DT_ZIO_SUPPORTED;
1862                ha->device_type |= DT_FWI2;
1863                ha->device_type |= DT_IIDMA;
1864                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1865                break;
1866        case PCI_DEVICE_ID_QLOGIC_ISP2432:
1867                ha->device_type |= DT_ISP2432;
1868                ha->device_type |= DT_ZIO_SUPPORTED;
1869                ha->device_type |= DT_FWI2;
1870                ha->device_type |= DT_IIDMA;
1871                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1872                break;
1873        case PCI_DEVICE_ID_QLOGIC_ISP8432:
1874                ha->device_type |= DT_ISP8432;
1875                ha->device_type |= DT_ZIO_SUPPORTED;
1876                ha->device_type |= DT_FWI2;
1877                ha->device_type |= DT_IIDMA;
1878                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1879                break;
1880        case PCI_DEVICE_ID_QLOGIC_ISP5422:
1881                ha->device_type |= DT_ISP5422;
1882                ha->device_type |= DT_FWI2;
1883                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1884                break;
1885        case PCI_DEVICE_ID_QLOGIC_ISP5432:
1886                ha->device_type |= DT_ISP5432;
1887                ha->device_type |= DT_FWI2;
1888                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1889                break;
1890        case PCI_DEVICE_ID_QLOGIC_ISP2532:
1891                ha->device_type |= DT_ISP2532;
1892                ha->device_type |= DT_ZIO_SUPPORTED;
1893                ha->device_type |= DT_FWI2;
1894                ha->device_type |= DT_IIDMA;
1895                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1896                break;
1897        case PCI_DEVICE_ID_QLOGIC_ISP8001:
1898                ha->device_type |= DT_ISP8001;
1899                ha->device_type |= DT_ZIO_SUPPORTED;
1900                ha->device_type |= DT_FWI2;
1901                ha->device_type |= DT_IIDMA;
1902                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1903                break;
1904        case PCI_DEVICE_ID_QLOGIC_ISP8021:
1905                ha->device_type |= DT_ISP8021;
1906                ha->device_type |= DT_ZIO_SUPPORTED;
1907                ha->device_type |= DT_FWI2;
1908                ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1909                /* Initialize 82XX ISP flags */
1910                qla82xx_init_flags(ha);
1911                break;
1912        }
1913
1914        if (IS_QLA82XX(ha))
1915                ha->port_no = !(ha->portnum & 1);
1916        else
1917                /* Get adapter physical port no from interrupt pin register. */
1918                pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1919
1920        if (ha->port_no & 1)
1921                ha->flags.port0 = 1;
1922        else
1923                ha->flags.port0 = 0;
1924        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
1925            "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
1926            ha->device_type, ha->flags.port0, ha->fw_srisc_address);
1927}
1928
1929static void
1930qla2xxx_scan_start(struct Scsi_Host *shost)
1931{
1932        scsi_qla_host_t *vha = shost_priv(shost);
1933
1934        if (vha->hw->flags.running_gold_fw)
1935                return;
1936
1937        set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1938        set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1939        set_bit(RSCN_UPDATE, &vha->dpc_flags);
1940        set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1941}
1942
1943static int
1944qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1945{
1946        scsi_qla_host_t *vha = shost_priv(shost);
1947
1948        if (!vha->host)
1949                return 1;
1950        if (time > vha->hw->loop_reset_delay * HZ)
1951                return 1;
1952
1953        return atomic_read(&vha->loop_state) == LOOP_READY;
1954}
1955
1956/*
1957 * PCI driver interface
1958 */
1959static int __devinit
1960qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1961{
1962        int     ret = -ENODEV;
1963        struct Scsi_Host *host;
1964        scsi_qla_host_t *base_vha = NULL;
1965        struct qla_hw_data *ha;
1966        char pci_info[30];
1967        char fw_str[30];
1968        struct scsi_host_template *sht;
1969        int bars, max_id, mem_only = 0;
1970        uint16_t req_length = 0, rsp_length = 0;
1971        struct req_que *req = NULL;
1972        struct rsp_que *rsp = NULL;
1973
1974        bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1975        sht = &qla2xxx_driver_template;
1976        if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1977            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1978            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1979            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1980            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1981            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1982            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1983            pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1984                bars = pci_select_bars(pdev, IORESOURCE_MEM);
1985                mem_only = 1;
1986                ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
1987                    "Mem only adapter.\n");
1988        }
1989        ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
1990            "Bars=%d.\n", bars);
1991
1992        if (mem_only) {
1993                if (pci_enable_device_mem(pdev))
1994                        goto probe_out;
1995        } else {
1996                if (pci_enable_device(pdev))
1997                        goto probe_out;
1998        }
1999
2000        /* This may fail but that's ok */
2001        pci_enable_pcie_error_reporting(pdev);
2002
2003        ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2004        if (!ha) {
2005                ql_log_pci(ql_log_fatal, pdev, 0x0009,
2006                    "Unable to allocate memory for ha.\n");
2007                goto probe_out;
2008        }
2009        ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2010            "Memory allocated for ha=%p.\n", ha);
2011        ha->pdev = pdev;
2012
2013        /* Clear our data area */
2014        ha->bars = bars;
2015        ha->mem_only = mem_only;
2016        spin_lock_init(&ha->hardware_lock);
2017        spin_lock_init(&ha->vport_slock);
2018
2019        /* Set ISP-type information. */
2020        qla2x00_set_isp_flags(ha);
2021
2022        /* Set EEH reset type to fundamental if required by hba */
2023        if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
2024                pdev->needs_freset = 1;
2025        }
2026
2027        ha->prev_topology = 0;
2028        ha->init_cb_size = sizeof(init_cb_t);
2029        ha->link_data_rate = PORT_SPEED_UNKNOWN;
2030        ha->optrom_size = OPTROM_SIZE_2300;
2031
2032        /* Assign ISP specific operations. */
2033        max_id = MAX_TARGETS_2200;
2034        if (IS_QLA2100(ha)) {
2035                max_id = MAX_TARGETS_2100;
2036                ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2037                req_length = REQUEST_ENTRY_CNT_2100;
2038                rsp_length = RESPONSE_ENTRY_CNT_2100;
2039                ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2040                ha->gid_list_info_size = 4;
2041                ha->flash_conf_off = ~0;
2042                ha->flash_data_off = ~0;
2043                ha->nvram_conf_off = ~0;
2044                ha->nvram_data_off = ~0;
2045                ha->isp_ops = &qla2100_isp_ops;
2046        } else if (IS_QLA2200(ha)) {
2047                ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2048                req_length = REQUEST_ENTRY_CNT_2200;
2049                rsp_length = RESPONSE_ENTRY_CNT_2100;
2050                ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2051                ha->gid_list_info_size = 4;
2052                ha->flash_conf_off = ~0;
2053                ha->flash_data_off = ~0;
2054                ha->nvram_conf_off = ~0;
2055                ha->nvram_data_off = ~0;
2056                ha->isp_ops = &qla2100_isp_ops;
2057        } else if (IS_QLA23XX(ha)) {
2058                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2059                req_length = REQUEST_ENTRY_CNT_2200;
2060                rsp_length = RESPONSE_ENTRY_CNT_2300;
2061                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2062                ha->gid_list_info_size = 6;
2063                if (IS_QLA2322(ha) || IS_QLA6322(ha))
2064                        ha->optrom_size = OPTROM_SIZE_2322;
2065                ha->flash_conf_off = ~0;
2066                ha->flash_data_off = ~0;
2067                ha->nvram_conf_off = ~0;
2068                ha->nvram_data_off = ~0;
2069                ha->isp_ops = &qla2300_isp_ops;
2070        } else if (IS_QLA24XX_TYPE(ha)) {
2071                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2072                req_length = REQUEST_ENTRY_CNT_24XX;
2073                rsp_length = RESPONSE_ENTRY_CNT_2300;
2074                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2075                ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2076                ha->gid_list_info_size = 8;
2077                ha->optrom_size = OPTROM_SIZE_24XX;
2078                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2079                ha->isp_ops = &qla24xx_isp_ops;
2080                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2081                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2082                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2083                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2084        } else if (IS_QLA25XX(ha)) {
2085                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2086                req_length = REQUEST_ENTRY_CNT_24XX;
2087                rsp_length = RESPONSE_ENTRY_CNT_2300;
2088                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2089                ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2090                ha->gid_list_info_size = 8;
2091                ha->optrom_size = OPTROM_SIZE_25XX;
2092                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2093                ha->isp_ops = &qla25xx_isp_ops;
2094                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2095                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2096                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2097                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2098        } else if (IS_QLA81XX(ha)) {
2099                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2100                req_length = REQUEST_ENTRY_CNT_24XX;
2101                rsp_length = RESPONSE_ENTRY_CNT_2300;
2102                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2103                ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2104                ha->gid_list_info_size = 8;
2105                ha->optrom_size = OPTROM_SIZE_81XX;
2106                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2107                ha->isp_ops = &qla81xx_isp_ops;
2108                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2109                ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2110                ha->nvram_conf_off = ~0;
2111                ha->nvram_data_off = ~0;
2112        } else if (IS_QLA82XX(ha)) {
2113                ha->mbx_count = MAILBOX_REGISTER_COUNT;
2114                req_length = REQUEST_ENTRY_CNT_82XX;
2115                rsp_length = RESPONSE_ENTRY_CNT_82XX;
2116                ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2117                ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2118                ha->gid_list_info_size = 8;
2119                ha->optrom_size = OPTROM_SIZE_82XX;
2120                ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2121                ha->isp_ops = &qla82xx_isp_ops;
2122                ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2123                ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2124                ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2125                ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2126        }
2127        ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2128            "mbx_count=%d, req_length=%d, "
2129            "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2130            "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, .\n",
2131            ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2132            ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2133            ha->nvram_npiv_size);
2134        ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2135            "isp_ops=%p, flash_conf_off=%d, "
2136            "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2137            ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2138            ha->nvram_conf_off, ha->nvram_data_off);
2139
2140        /* Configure PCI I/O space */
2141        ret = ha->isp_ops->iospace_config(ha);
2142        if (ret)
2143                goto probe_hw_failed;
2144
2145        ql_log_pci(ql_log_info, pdev, 0x001d,
2146            "Found an ISP%04X irq %d iobase 0x%p.\n",
2147            pdev->device, pdev->irq, ha->iobase);
2148        mutex_init(&ha->vport_lock);
2149        init_completion(&ha->mbx_cmd_comp);
2150        complete(&ha->mbx_cmd_comp);
2151        init_completion(&ha->mbx_intr_comp);
2152        init_completion(&ha->dcbx_comp);
2153
2154        set_bit(0, (unsigned long *) ha->vp_idx_map);
2155
2156        qla2x00_config_dma_addressing(ha);
2157        ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2158            "64 Bit addressing is %s.\n",
2159            ha->flags.enable_64bit_addressing ? "enable" :
2160            "disable");
2161        ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2162        if (!ret) {
2163                ql_log_pci(ql_log_fatal, pdev, 0x0031,
2164                    "Failed to allocate memory for adapter, aborting.\n");
2165
2166                goto probe_hw_failed;
2167        }
2168
2169        req->max_q_depth = MAX_Q_DEPTH;
2170        if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2171                req->max_q_depth = ql2xmaxqdepth;
2172
2173
2174        base_vha = qla2x00_create_host(sht, ha);
2175        if (!base_vha) {
2176                ret = -ENOMEM;
2177                qla2x00_mem_free(ha);
2178                qla2x00_free_req_que(ha, req);
2179                qla2x00_free_rsp_que(ha, rsp);
2180                goto probe_hw_failed;
2181        }
2182
2183        pci_set_drvdata(pdev, base_vha);
2184
2185        host = base_vha->host;
2186        base_vha->req = req;
2187        host->can_queue = req->length + 128;
2188        if (IS_QLA2XXX_MIDTYPE(ha))
2189                base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2190        else
2191                base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2192                                                base_vha->vp_idx;
2193
2194        /* Set the SG table size based on ISP type */
2195        if (!IS_FWI2_CAPABLE(ha)) {
2196                if (IS_QLA2100(ha))
2197                        host->sg_tablesize = 32;
2198        } else {
2199                if (!IS_QLA82XX(ha))
2200                        host->sg_tablesize = QLA_SG_ALL;
2201        }
2202        ql_dbg(ql_dbg_init, base_vha, 0x0032,
2203            "can_queue=%d, req=%p, "
2204            "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2205            host->can_queue, base_vha->req,
2206            base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2207        host->max_id = max_id;
2208        host->this_id = 255;
2209        host->cmd_per_lun = 3;
2210        host->unique_id = host->host_no;
2211        if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2212                host->max_cmd_len = 32;
2213        else
2214                host->max_cmd_len = MAX_CMDSZ;
2215        host->max_channel = MAX_BUSES - 1;
2216        host->max_lun = ql2xmaxlun;
2217        host->transportt = qla2xxx_transport_template;
2218        sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2219
2220        ql_dbg(ql_dbg_init, base_vha, 0x0033,
2221            "max_id=%d this_id=%d "
2222            "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2223            "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2224            host->this_id, host->cmd_per_lun, host->unique_id,
2225            host->max_cmd_len, host->max_channel, host->max_lun,
2226            host->transportt, sht->vendor_id);
2227
2228        /* Set up the irqs */
2229        ret = qla2x00_request_irqs(ha, rsp);
2230        if (ret)
2231                goto probe_init_failed;
2232
2233        pci_save_state(pdev);
2234
2235        /* Alloc arrays of request and response ring ptrs */
2236que_init:
2237        if (!qla2x00_alloc_queues(ha)) {
2238                ql_log(ql_log_fatal, base_vha, 0x003d,
2239                    "Failed to allocate memory for queue pointers.. aborting.\n");
2240                goto probe_init_failed;
2241        }
2242
2243        ha->rsp_q_map[0] = rsp;
2244        ha->req_q_map[0] = req;
2245        rsp->req = req;
2246        req->rsp = rsp;
2247        set_bit(0, ha->req_qid_map);
2248        set_bit(0, ha->rsp_qid_map);
2249        /* FWI2-capable only. */
2250        req->req_q_in = &ha->iobase->isp24.req_q_in;
2251        req->req_q_out = &ha->iobase->isp24.req_q_out;
2252        rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2253        rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2254        if (ha->mqenable) {
2255                req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2256                req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2257                rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2258                rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2259        }
2260
2261        if (IS_QLA82XX(ha)) {
2262                req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2263                rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2264                rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2265        }
2266
2267        ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2268            "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2269            ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2270        ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2271            "req->req_q_in=%p req->req_q_out=%p "
2272            "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2273            req->req_q_in, req->req_q_out,
2274            rsp->rsp_q_in, rsp->rsp_q_out);
2275        ql_dbg(ql_dbg_init, base_vha, 0x003e,
2276            "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2277            ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2278        ql_dbg(ql_dbg_init, base_vha, 0x003f,
2279            "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2280            req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2281
2282        if (qla2x00_initialize_adapter(base_vha)) {
2283                ql_log(ql_log_fatal, base_vha, 0x00d6,
2284                    "Failed to initialize adapter - Adapter flags %x.\n",
2285                    base_vha->device_flags);
2286
2287                if (IS_QLA82XX(ha)) {
2288                        qla82xx_idc_lock(ha);
2289                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2290                                QLA82XX_DEV_FAILED);
2291                        qla82xx_idc_unlock(ha);
2292                        ql_log(ql_log_fatal, base_vha, 0x00d7,
2293                            "HW State: FAILED.\n");
2294                }
2295
2296                ret = -ENODEV;
2297                goto probe_failed;
2298        }
2299
2300        if (ha->mqenable) {
2301                if (qla25xx_setup_mode(base_vha)) {
2302                        ql_log(ql_log_warn, base_vha, 0x00ec,
2303                            "Failed to create queues, falling back to single queue mode.\n");
2304                        goto que_init;
2305                }
2306        }
2307
2308        if (ha->flags.running_gold_fw)
2309                goto skip_dpc;
2310
2311        /*
2312         * Startup the kernel thread for this host adapter
2313         */
2314        ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2315            "%s_dpc", base_vha->host_str);
2316        if (IS_ERR(ha->dpc_thread)) {
2317                ql_log(ql_log_fatal, base_vha, 0x00ed,
2318                    "Failed to start DPC thread.\n");
2319                ret = PTR_ERR(ha->dpc_thread);
2320                goto probe_failed;
2321        }
2322        ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2323            "DPC thread started successfully.\n");
2324
2325skip_dpc:
2326        list_add_tail(&base_vha->list, &ha->vp_list);
2327        base_vha->host->irq = ha->pdev->irq;
2328
2329        /* Initialized the timer */
2330        qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2331        ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2332            "Started qla2x00_timer with "
2333            "interval=%d.\n", WATCH_INTERVAL);
2334        ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2335            "Detected hba at address=%p.\n",
2336            ha);
2337
2338        if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2339                if (ha->fw_attributes & BIT_4) {
2340                        int prot = 0;
2341                        base_vha->flags.difdix_supported = 1;
2342                        ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2343                            "Registering for DIF/DIX type 1 and 3 protection.\n");
2344                        if (ql2xenabledif == 1)
2345                                prot = SHOST_DIX_TYPE0_PROTECTION;
2346                        scsi_host_set_prot(host,
2347                            prot | SHOST_DIF_TYPE1_PROTECTION
2348                            | SHOST_DIF_TYPE2_PROTECTION
2349                            | SHOST_DIF_TYPE3_PROTECTION
2350                            | SHOST_DIX_TYPE1_PROTECTION
2351                            | SHOST_DIX_TYPE2_PROTECTION
2352                            | SHOST_DIX_TYPE3_PROTECTION);
2353                        scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2354                } else
2355                        base_vha->flags.difdix_supported = 0;
2356        }
2357
2358        ha->isp_ops->enable_intrs(ha);
2359
2360        ret = scsi_add_host(host, &pdev->dev);
2361        if (ret)
2362                goto probe_failed;
2363
2364        base_vha->flags.init_done = 1;
2365        base_vha->flags.online = 1;
2366
2367        ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2368            "Init done and hba is online.\n");
2369
2370        scsi_scan_host(host);
2371
2372        qla2x00_alloc_sysfs_attr(base_vha);
2373
2374        qla2x00_init_host_attr(base_vha);
2375
2376        qla2x00_dfs_setup(base_vha);
2377
2378        ql_log(ql_log_info, base_vha, 0x00fb,
2379            "QLogic %s - %s.\n",
2380            ha->model_number, ha->model_desc ? ha->model_desc : "");
2381        ql_log(ql_log_info, base_vha, 0x00fc,
2382            "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2383            pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2384            pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2385            base_vha->host_no,
2386            ha->isp_ops->fw_version_str(base_vha, fw_str));
2387
2388        return 0;
2389
2390probe_init_failed:
2391        qla2x00_free_req_que(ha, req);
2392        qla2x00_free_rsp_que(ha, rsp);
2393        ha->max_req_queues = ha->max_rsp_queues = 0;
2394
2395probe_failed:
2396        if (base_vha->timer_active)
2397                qla2x00_stop_timer(base_vha);
2398        base_vha->flags.online = 0;
2399        if (ha->dpc_thread) {
2400                struct task_struct *t = ha->dpc_thread;
2401
2402                ha->dpc_thread = NULL;
2403                kthread_stop(t);
2404        }
2405
2406        qla2x00_free_device(base_vha);
2407
2408        scsi_host_put(base_vha->host);
2409
2410probe_hw_failed:
2411        if (IS_QLA82XX(ha)) {
2412                qla82xx_idc_lock(ha);
2413                qla82xx_clear_drv_active(ha);
2414                qla82xx_idc_unlock(ha);
2415                iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2416                if (!ql2xdbwr)
2417                        iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2418        } else {
2419                if (ha->iobase)
2420                        iounmap(ha->iobase);
2421        }
2422        pci_release_selected_regions(ha->pdev, ha->bars);
2423        kfree(ha);
2424        ha = NULL;
2425
2426probe_out:
2427        pci_disable_device(pdev);
2428        return ret;
2429}
2430
2431static void
2432qla2x00_shutdown(struct pci_dev *pdev)
2433{
2434        scsi_qla_host_t *vha;
2435        struct qla_hw_data  *ha;
2436
2437        vha = pci_get_drvdata(pdev);
2438        ha = vha->hw;
2439
2440        /* Turn-off FCE trace */
2441        if (ha->flags.fce_enabled) {
2442                qla2x00_disable_fce_trace(vha, NULL, NULL);
2443                ha->flags.fce_enabled = 0;
2444        }
2445
2446        /* Turn-off EFT trace */
2447        if (ha->eft)
2448                qla2x00_disable_eft_trace(vha);
2449
2450        /* Stop currently executing firmware. */
2451        qla2x00_try_to_stop_firmware(vha);
2452
2453        /* Turn adapter off line */
2454        vha->flags.online = 0;
2455
2456        /* turn-off interrupts on the card */
2457        if (ha->interrupts_on) {
2458                vha->flags.init_done = 0;
2459                ha->isp_ops->disable_intrs(ha);
2460        }
2461
2462        qla2x00_free_irqs(vha);
2463
2464        qla2x00_free_fw_dump(ha);
2465}
2466
2467static void
2468qla2x00_remove_one(struct pci_dev *pdev)
2469{
2470        scsi_qla_host_t *base_vha, *vha;
2471        struct qla_hw_data  *ha;
2472        unsigned long flags;
2473
2474        base_vha = pci_get_drvdata(pdev);
2475        ha = base_vha->hw;
2476
2477        mutex_lock(&ha->vport_lock);
2478        while (ha->cur_vport_count) {
2479                struct Scsi_Host *scsi_host;
2480
2481                spin_lock_irqsave(&ha->vport_slock, flags);
2482
2483                BUG_ON(base_vha->list.next == &ha->vp_list);
2484                /* This assumes first entry in ha->vp_list is always base vha */
2485                vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2486                scsi_host = scsi_host_get(vha->host);
2487
2488                spin_unlock_irqrestore(&ha->vport_slock, flags);
2489                mutex_unlock(&ha->vport_lock);
2490
2491                fc_vport_terminate(vha->fc_vport);
2492                scsi_host_put(vha->host);
2493
2494                mutex_lock(&ha->vport_lock);
2495        }
2496        mutex_unlock(&ha->vport_lock);
2497
2498        set_bit(UNLOADING, &base_vha->dpc_flags);
2499
2500        qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2501
2502        qla2x00_dfs_remove(base_vha);
2503
2504        qla84xx_put_chip(base_vha);
2505
2506        /* Disable timer */
2507        if (base_vha->timer_active)
2508                qla2x00_stop_timer(base_vha);
2509
2510        base_vha->flags.online = 0;
2511
2512        /* Flush the work queue and remove it */
2513        if (ha->wq) {
2514                flush_workqueue(ha->wq);
2515                destroy_workqueue(ha->wq);
2516                ha->wq = NULL;
2517        }
2518
2519        /* Kill the kernel thread for this host */
2520        if (ha->dpc_thread) {
2521                struct task_struct *t = ha->dpc_thread;
2522
2523                /*
2524                 * qla2xxx_wake_dpc checks for ->dpc_thread
2525                 * so we need to zero it out.
2526                 */
2527                ha->dpc_thread = NULL;
2528                kthread_stop(t);
2529        }
2530
2531        qla2x00_free_sysfs_attr(base_vha);
2532
2533        fc_remove_host(base_vha->host);
2534
2535        scsi_remove_host(base_vha->host);
2536
2537        qla2x00_free_device(base_vha);
2538
2539        scsi_host_put(base_vha->host);
2540
2541        if (IS_QLA82XX(ha)) {
2542                qla82xx_idc_lock(ha);
2543                qla82xx_clear_drv_active(ha);
2544                qla82xx_idc_unlock(ha);
2545
2546                iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2547                if (!ql2xdbwr)
2548                        iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2549        } else {
2550                if (ha->iobase)
2551                        iounmap(ha->iobase);
2552
2553                if (ha->mqiobase)
2554                        iounmap(ha->mqiobase);
2555        }
2556
2557        pci_release_selected_regions(ha->pdev, ha->bars);
2558        kfree(ha);
2559        ha = NULL;
2560
2561        pci_disable_pcie_error_reporting(pdev);
2562
2563        pci_disable_device(pdev);
2564        pci_set_drvdata(pdev, NULL);
2565}
2566
2567static void
2568qla2x00_free_device(scsi_qla_host_t *vha)
2569{
2570        struct qla_hw_data *ha = vha->hw;
2571
2572        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2573
2574        /* Disable timer */
2575        if (vha->timer_active)
2576                qla2x00_stop_timer(vha);
2577
2578        /* Kill the kernel thread for this host */
2579        if (ha->dpc_thread) {
2580                struct task_struct *t = ha->dpc_thread;
2581
2582                /*
2583                 * qla2xxx_wake_dpc checks for ->dpc_thread
2584                 * so we need to zero it out.
2585                 */
2586                ha->dpc_thread = NULL;
2587                kthread_stop(t);
2588        }
2589
2590        qla25xx_delete_queues(vha);
2591
2592        if (ha->flags.fce_enabled)
2593                qla2x00_disable_fce_trace(vha, NULL, NULL);
2594
2595        if (ha->eft)
2596                qla2x00_disable_eft_trace(vha);
2597
2598        /* Stop currently executing firmware. */
2599        qla2x00_try_to_stop_firmware(vha);
2600
2601        vha->flags.online = 0;
2602
2603        /* turn-off interrupts on the card */
2604        if (ha->interrupts_on) {
2605                vha->flags.init_done = 0;
2606                ha->isp_ops->disable_intrs(ha);
2607        }
2608
2609        qla2x00_free_irqs(vha);
2610
2611        qla2x00_free_fcports(vha);
2612
2613        qla2x00_mem_free(ha);
2614
2615        qla82xx_md_free(vha);
2616
2617        qla2x00_free_queues(ha);
2618}
2619
2620void qla2x00_free_fcports(struct scsi_qla_host *vha)
2621{
2622        fc_port_t *fcport, *tfcport;
2623
2624        list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2625                list_del(&fcport->list);
2626                kfree(fcport);
2627                fcport = NULL;
2628        }
2629}
2630
2631static inline void
2632qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2633    int defer)
2634{
2635        struct fc_rport *rport;
2636        scsi_qla_host_t *base_vha;
2637        unsigned long flags;
2638
2639        if (!fcport->rport)
2640                return;
2641
2642        rport = fcport->rport;
2643        if (defer) {
2644                base_vha = pci_get_drvdata(vha->hw->pdev);
2645                spin_lock_irqsave(vha->host->host_lock, flags);
2646                fcport->drport = rport;
2647                spin_unlock_irqrestore(vha->host->host_lock, flags);
2648                set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2649                qla2xxx_wake_dpc(base_vha);
2650        } else
2651                fc_remote_port_delete(rport);
2652}
2653
2654/*
2655 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2656 *
2657 * Input: ha = adapter block pointer.  fcport = port structure pointer.
2658 *
2659 * Return: None.
2660 *
2661 * Context:
2662 */
2663void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2664    int do_login, int defer)
2665{
2666        if (atomic_read(&fcport->state) == FCS_ONLINE &&
2667            vha->vp_idx == fcport->vp_idx) {
2668                qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2669                qla2x00_schedule_rport_del(vha, fcport, defer);
2670        }
2671        /*
2672         * We may need to retry the login, so don't change the state of the
2673         * port but do the retries.
2674         */
2675        if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2676                qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2677
2678        if (!do_login)
2679                return;
2680
2681        if (fcport->login_retry == 0) {
2682                fcport->login_retry = vha->hw->login_retry_count;
2683                set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2684
2685                ql_dbg(ql_dbg_disc, vha, 0x2067,
2686                    "Port login retry "
2687                    "%02x%02x%02x%02x%02x%02x%02x%02x, "
2688                    "id = 0x%04x retry cnt=%d.\n",
2689                    fcport->port_name[0], fcport->port_name[1],
2690                    fcport->port_name[2], fcport->port_name[3],
2691                    fcport->port_name[4], fcport->port_name[5],
2692                    fcport->port_name[6], fcport->port_name[7],
2693                    fcport->loop_id, fcport->login_retry);
2694        }
2695}
2696
2697/*
2698 * qla2x00_mark_all_devices_lost
2699 *      Updates fcport state when device goes offline.
2700 *
2701 * Input:
2702 *      ha = adapter block pointer.
2703 *      fcport = port structure pointer.
2704 *
2705 * Return:
2706 *      None.
2707 *
2708 * Context:
2709 */
2710void
2711qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2712{
2713        fc_port_t *fcport;
2714
2715        list_for_each_entry(fcport, &vha->vp_fcports, list) {
2716                if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2717                        continue;
2718
2719                /*
2720                 * No point in marking the device as lost, if the device is
2721                 * already DEAD.
2722                 */
2723                if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2724                        continue;
2725                if (atomic_read(&fcport->state) == FCS_ONLINE) {
2726                        qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2727                        if (defer)
2728                                qla2x00_schedule_rport_del(vha, fcport, defer);
2729                        else if (vha->vp_idx == fcport->vp_idx)
2730                                qla2x00_schedule_rport_del(vha, fcport, defer);
2731                }
2732        }
2733}
2734
2735/*
2736* qla2x00_mem_alloc
2737*      Allocates adapter memory.
2738*
2739* Returns:
2740*      0  = success.
2741*      !0  = failure.
2742*/
2743static int
2744qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2745        struct req_que **req, struct rsp_que **rsp)
2746{
2747        char    name[16];
2748
2749        ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2750                &ha->init_cb_dma, GFP_KERNEL);
2751        if (!ha->init_cb)
2752                goto fail;
2753
2754        ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2755                &ha->gid_list_dma, GFP_KERNEL);
2756        if (!ha->gid_list)
2757                goto fail_free_init_cb;
2758
2759        ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2760        if (!ha->srb_mempool)
2761                goto fail_free_gid_list;
2762
2763        if (IS_QLA82XX(ha)) {
2764                /* Allocate cache for CT6 Ctx. */
2765                if (!ctx_cachep) {
2766                        ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2767                                sizeof(struct ct6_dsd), 0,
2768                                SLAB_HWCACHE_ALIGN, NULL);
2769                        if (!ctx_cachep)
2770                                goto fail_free_gid_list;
2771                }
2772                ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2773                        ctx_cachep);
2774                if (!ha->ctx_mempool)
2775                        goto fail_free_srb_mempool;
2776                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
2777                    "ctx_cachep=%p ctx_mempool=%p.\n",
2778                    ctx_cachep, ha->ctx_mempool);
2779        }
2780
2781        /* Get memory for cached NVRAM */
2782        ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2783        if (!ha->nvram)
2784                goto fail_free_ctx_mempool;
2785
2786        snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2787                ha->pdev->device);
2788        ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2789                DMA_POOL_SIZE, 8, 0);
2790        if (!ha->s_dma_pool)
2791                goto fail_free_nvram;
2792
2793        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
2794            "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
2795            ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
2796
2797        if (IS_QLA82XX(ha) || ql2xenabledif) {
2798                ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2799                        DSD_LIST_DMA_POOL_SIZE, 8, 0);
2800                if (!ha->dl_dma_pool) {
2801                        ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
2802                            "Failed to allocate memory for dl_dma_pool.\n");
2803                        goto fail_s_dma_pool;
2804                }
2805
2806                ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2807                        FCP_CMND_DMA_POOL_SIZE, 8, 0);
2808                if (!ha->fcp_cmnd_dma_pool) {
2809                        ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
2810                            "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
2811                        goto fail_dl_dma_pool;
2812                }
2813                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
2814                    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
2815                    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
2816        }
2817
2818        /* Allocate memory for SNS commands */
2819        if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2820        /* Get consistent memory allocated for SNS commands */
2821                ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2822                sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2823                if (!ha->sns_cmd)
2824                        goto fail_dma_pool;
2825                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
2826                    "sns_cmd: %p.\n", ha->sns_cmd);
2827        } else {
2828        /* Get consistent memory allocated for MS IOCB */
2829                ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2830                        &ha->ms_iocb_dma);
2831                if (!ha->ms_iocb)
2832                        goto fail_dma_pool;
2833        /* Get consistent memory allocated for CT SNS commands */
2834                ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2835                        sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2836                if (!ha->ct_sns)
2837                        goto fail_free_ms_iocb;
2838                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
2839                    "ms_iocb=%p ct_sns=%p.\n",
2840                    ha->ms_iocb, ha->ct_sns);
2841        }
2842
2843        /* Allocate memory for request ring */
2844        *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2845        if (!*req) {
2846                ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
2847                    "Failed to allocate memory for req.\n");
2848                goto fail_req;
2849        }
2850        (*req)->length = req_len;
2851        (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2852                ((*req)->length + 1) * sizeof(request_t),
2853                &(*req)->dma, GFP_KERNEL);
2854        if (!(*req)->ring) {
2855                ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
2856                    "Failed to allocate memory for req_ring.\n");
2857                goto fail_req_ring;
2858        }
2859        /* Allocate memory for response ring */
2860        *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2861        if (!*rsp) {
2862                ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
2863                    "Failed to allocate memory for rsp.\n");
2864                goto fail_rsp;
2865        }
2866        (*rsp)->hw = ha;
2867        (*rsp)->length = rsp_len;
2868        (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2869                ((*rsp)->length + 1) * sizeof(response_t),
2870                &(*rsp)->dma, GFP_KERNEL);
2871        if (!(*rsp)->ring) {
2872                ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
2873                    "Failed to allocate memory for rsp_ring.\n");
2874                goto fail_rsp_ring;
2875        }
2876        (*req)->rsp = *rsp;
2877        (*rsp)->req = *req;
2878        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
2879            "req=%p req->length=%d req->ring=%p rsp=%p "
2880            "rsp->length=%d rsp->ring=%p.\n",
2881            *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
2882            (*rsp)->ring);
2883        /* Allocate memory for NVRAM data for vports */
2884        if (ha->nvram_npiv_size) {
2885                ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2886                    ha->nvram_npiv_size, GFP_KERNEL);
2887                if (!ha->npiv_info) {
2888                        ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
2889                            "Failed to allocate memory for npiv_info.\n");
2890                        goto fail_npiv_info;
2891                }
2892        } else
2893                ha->npiv_info = NULL;
2894
2895        /* Get consistent memory allocated for EX-INIT-CB. */
2896        if (IS_QLA8XXX_TYPE(ha)) {
2897                ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2898                    &ha->ex_init_cb_dma);
2899                if (!ha->ex_init_cb)
2900                        goto fail_ex_init_cb;
2901                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
2902                    "ex_init_cb=%p.\n", ha->ex_init_cb);
2903        }
2904
2905        INIT_LIST_HEAD(&ha->gbl_dsd_list);
2906
2907        /* Get consistent memory allocated for Async Port-Database. */
2908        if (!IS_FWI2_CAPABLE(ha)) {
2909                ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2910                        &ha->async_pd_dma);
2911                if (!ha->async_pd)
2912                        goto fail_async_pd;
2913                ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
2914                    "async_pd=%p.\n", ha->async_pd);
2915        }
2916
2917        INIT_LIST_HEAD(&ha->vp_list);
2918        return 1;
2919
2920fail_async_pd:
2921        dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2922fail_ex_init_cb:
2923        kfree(ha->npiv_info);
2924fail_npiv_info:
2925        dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2926                sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2927        (*rsp)->ring = NULL;
2928        (*rsp)->dma = 0;
2929fail_rsp_ring:
2930        kfree(*rsp);
2931fail_rsp:
2932        dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2933                sizeof(request_t), (*req)->ring, (*req)->dma);
2934        (*req)->ring = NULL;
2935        (*req)->dma = 0;
2936fail_req_ring:
2937        kfree(*req);
2938fail_req:
2939        dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2940                ha->ct_sns, ha->ct_sns_dma);
2941        ha->ct_sns = NULL;
2942        ha->ct_sns_dma = 0;
2943fail_free_ms_iocb:
2944        dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2945        ha->ms_iocb = NULL;
2946        ha->ms_iocb_dma = 0;
2947fail_dma_pool:
2948        if (IS_QLA82XX(ha) || ql2xenabledif) {
2949                dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2950                ha->fcp_cmnd_dma_pool = NULL;
2951        }
2952fail_dl_dma_pool:
2953        if (IS_QLA82XX(ha) || ql2xenabledif) {
2954                dma_pool_destroy(ha->dl_dma_pool);
2955                ha->dl_dma_pool = NULL;
2956        }
2957fail_s_dma_pool:
2958        dma_pool_destroy(ha->s_dma_pool);
2959        ha->s_dma_pool = NULL;
2960fail_free_nvram:
2961        kfree(ha->nvram);
2962        ha->nvram = NULL;
2963fail_free_ctx_mempool:
2964        mempool_destroy(ha->ctx_mempool);
2965        ha->ctx_mempool = NULL;
2966fail_free_srb_mempool:
2967        mempool_destroy(ha->srb_mempool);
2968        ha->srb_mempool = NULL;
2969fail_free_gid_list:
2970        dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2971        ha->gid_list_dma);
2972        ha->gid_list = NULL;
2973        ha->gid_list_dma = 0;
2974fail_free_init_cb:
2975        dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2976        ha->init_cb_dma);
2977        ha->init_cb = NULL;
2978        ha->init_cb_dma = 0;
2979fail:
2980        ql_log(ql_log_fatal, NULL, 0x0030,
2981            "Memory allocation failure.\n");
2982        return -ENOMEM;
2983}
2984
2985/*
2986* qla2x00_free_fw_dump
2987*       Frees fw dump stuff.
2988*
2989* Input:
2990*       ha = adapter block pointer.
2991*/
2992static void
2993qla2x00_free_fw_dump(struct qla_hw_data *ha)
2994{
2995        if (ha->fce)
2996                dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2997                    ha->fce_dma);
2998
2999        if (ha->fw_dump) {
3000                if (ha->eft)
3001                        dma_free_coherent(&ha->pdev->dev,
3002                            ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3003                vfree(ha->fw_dump);
3004        }
3005        ha->fce = NULL;
3006        ha->fce_dma = 0;
3007        ha->eft = NULL;
3008        ha->eft_dma = 0;
3009        ha->fw_dump = NULL;
3010        ha->fw_dumped = 0;
3011        ha->fw_dump_reading = 0;
3012}
3013
3014/*
3015* qla2x00_mem_free
3016*      Frees all adapter allocated memory.
3017*
3018* Input:
3019*      ha = adapter block pointer.
3020*/
3021static void
3022qla2x00_mem_free(struct qla_hw_data *ha)
3023{
3024        qla2x00_free_fw_dump(ha);
3025
3026        if (ha->srb_mempool)
3027                mempool_destroy(ha->srb_mempool);
3028
3029        if (ha->dcbx_tlv)
3030                dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3031                    ha->dcbx_tlv, ha->dcbx_tlv_dma);
3032
3033        if (ha->xgmac_data)
3034                dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3035                    ha->xgmac_data, ha->xgmac_data_dma);
3036
3037        if (ha->sns_cmd)
3038                dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3039                ha->sns_cmd, ha->sns_cmd_dma);
3040
3041        if (ha->ct_sns)
3042                dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3043                ha->ct_sns, ha->ct_sns_dma);
3044
3045        if (ha->sfp_data)
3046                dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3047
3048        if (ha->edc_data)
3049                dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
3050
3051        if (ha->ms_iocb)
3052                dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3053
3054        if (ha->ex_init_cb)
3055                dma_pool_free(ha->s_dma_pool,
3056                        ha->ex_init_cb, ha->ex_init_cb_dma);
3057
3058        if (ha->async_pd)
3059                dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3060
3061        if (ha->s_dma_pool)
3062                dma_pool_destroy(ha->s_dma_pool);
3063
3064        if (ha->gid_list)
3065                dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
3066                ha->gid_list_dma);
3067
3068        if (IS_QLA82XX(ha)) {
3069                if (!list_empty(&ha->gbl_dsd_list)) {
3070                        struct dsd_dma *dsd_ptr, *tdsd_ptr;
3071
3072                        /* clean up allocated prev pool */
3073                        list_for_each_entry_safe(dsd_ptr,
3074                                tdsd_ptr, &ha->gbl_dsd_list, list) {
3075                                dma_pool_free(ha->dl_dma_pool,
3076                                dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3077                                list_del(&dsd_ptr->list);
3078                                kfree(dsd_ptr);
3079                        }
3080                }
3081        }
3082
3083        if (ha->dl_dma_pool)
3084                dma_pool_destroy(ha->dl_dma_pool);
3085
3086        if (ha->fcp_cmnd_dma_pool)
3087                dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3088
3089        if (ha->ctx_mempool)
3090                mempool_destroy(ha->ctx_mempool);
3091
3092        if (ha->init_cb)
3093                dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3094                        ha->init_cb, ha->init_cb_dma);
3095        vfree(ha->optrom_buffer);
3096        kfree(ha->nvram);
3097        kfree(ha->npiv_info);
3098
3099        ha->srb_mempool = NULL;
3100        ha->ctx_mempool = NULL;
3101        ha->sns_cmd = NULL;
3102        ha->sns_cmd_dma = 0;
3103        ha->ct_sns = NULL;
3104        ha->ct_sns_dma = 0;
3105        ha->ms_iocb = NULL;
3106        ha->ms_iocb_dma = 0;
3107        ha->init_cb = NULL;
3108        ha->init_cb_dma = 0;
3109        ha->ex_init_cb = NULL;
3110        ha->ex_init_cb_dma = 0;
3111        ha->async_pd = NULL;
3112        ha->async_pd_dma = 0;
3113
3114        ha->s_dma_pool = NULL;
3115        ha->dl_dma_pool = NULL;
3116        ha->fcp_cmnd_dma_pool = NULL;
3117
3118        ha->gid_list = NULL;
3119        ha->gid_list_dma = 0;
3120}
3121
3122struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3123                                                struct qla_hw_data *ha)
3124{
3125        struct Scsi_Host *host;
3126        struct scsi_qla_host *vha = NULL;
3127
3128        host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3129        if (host == NULL) {
3130                ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3131                    "Failed to allocate host from the scsi layer, aborting.\n");
3132                goto fail;
3133        }
3134
3135        /* Clear our data area */
3136        vha = shost_priv(host);
3137        memset(vha, 0, sizeof(scsi_qla_host_t));
3138
3139        vha->host = host;
3140        vha->host_no = host->host_no;
3141        vha->hw = ha;
3142
3143        INIT_LIST_HEAD(&vha->vp_fcports);
3144        INIT_LIST_HEAD(&vha->work_list);
3145        INIT_LIST_HEAD(&vha->list);
3146
3147        spin_lock_init(&vha->work_lock);
3148
3149        sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3150        ql_dbg(ql_dbg_init, vha, 0x0041,
3151            "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3152            vha->host, vha->hw, vha,
3153            dev_name(&(ha->pdev->dev)));
3154
3155        return vha;
3156
3157fail:
3158        return vha;
3159}
3160
3161static struct qla_work_evt *
3162qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3163{
3164        struct qla_work_evt *e;
3165        uint8_t bail;
3166
3167        QLA_VHA_MARK_BUSY(vha, bail);
3168        if (bail)
3169                return NULL;
3170
3171        e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3172        if (!e) {
3173                QLA_VHA_MARK_NOT_BUSY(vha);
3174                return NULL;
3175        }
3176
3177        INIT_LIST_HEAD(&e->list);
3178        e->type = type;
3179        e->flags = QLA_EVT_FLAG_FREE;
3180        return e;
3181}
3182
3183static int
3184qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3185{
3186        unsigned long flags;
3187
3188        spin_lock_irqsave(&vha->work_lock, flags);
3189        list_add_tail(&e->list, &vha->work_list);
3190        spin_unlock_irqrestore(&vha->work_lock, flags);
3191        qla2xxx_wake_dpc(vha);
3192
3193        return QLA_SUCCESS;
3194}
3195
3196int
3197qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3198    u32 data)
3199{
3200        struct qla_work_evt *e;
3201
3202        e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3203        if (!e)
3204                return QLA_FUNCTION_FAILED;
3205
3206        e->u.aen.code = code;
3207        e->u.aen.data = data;
3208        return qla2x00_post_work(vha, e);
3209}
3210
3211int
3212qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3213{
3214        struct qla_work_evt *e;
3215
3216        e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3217        if (!e)
3218                return QLA_FUNCTION_FAILED;
3219
3220        memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3221        return qla2x00_post_work(vha, e);
3222}
3223
3224#define qla2x00_post_async_work(name, type)     \
3225int qla2x00_post_async_##name##_work(           \
3226    struct scsi_qla_host *vha,                  \
3227    fc_port_t *fcport, uint16_t *data)          \
3228{                                               \
3229        struct qla_work_evt *e;                 \
3230                                                \
3231        e = qla2x00_alloc_work(vha, type);      \
3232        if (!e)                                 \
3233                return QLA_FUNCTION_FAILED;     \
3234                                                \
3235        e->u.logio.fcport = fcport;             \
3236        if (data) {                             \
3237                e->u.logio.data[0] = data[0];   \
3238                e->u.logio.data[1] = data[1];   \
3239        }                                       \
3240        return qla2x00_post_work(vha, e);       \
3241}
3242
3243qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3244qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3245qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3246qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3247qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3248qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3249
3250int
3251qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3252{
3253        struct qla_work_evt *e;
3254
3255        e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3256        if (!e)
3257                return QLA_FUNCTION_FAILED;
3258
3259        e->u.uevent.code = code;
3260        return qla2x00_post_work(vha, e);
3261}
3262
3263static void
3264qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3265{
3266        char event_string[40];
3267        char *envp[] = { event_string, NULL };
3268
3269        switch (code) {
3270        case QLA_UEVENT_CODE_FW_DUMP:
3271                snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3272                    vha->host_no);
3273                break;
3274        default:
3275                /* do nothing */
3276                break;
3277        }
3278        kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3279}
3280
3281void
3282qla2x00_do_work(struct scsi_qla_host *vha)
3283{
3284        struct qla_work_evt *e, *tmp;
3285        unsigned long flags;
3286        LIST_HEAD(work);
3287
3288        spin_lock_irqsave(&vha->work_lock, flags);
3289        list_splice_init(&vha->work_list, &work);
3290        spin_unlock_irqrestore(&vha->work_lock, flags);
3291
3292        list_for_each_entry_safe(e, tmp, &work, list) {
3293                list_del_init(&e->list);
3294
3295                switch (e->type) {
3296                case QLA_EVT_AEN:
3297                        fc_host_post_event(vha->host, fc_get_event_number(),
3298                            e->u.aen.code, e->u.aen.data);
3299                        break;
3300                case QLA_EVT_IDC_ACK:
3301                        qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3302                        break;
3303                case QLA_EVT_ASYNC_LOGIN:
3304                        qla2x00_async_login(vha, e->u.logio.fcport,
3305                            e->u.logio.data);
3306                        break;
3307                case QLA_EVT_ASYNC_LOGIN_DONE:
3308                        qla2x00_async_login_done(vha, e->u.logio.fcport,
3309                            e->u.logio.data);
3310                        break;
3311                case QLA_EVT_ASYNC_LOGOUT:
3312                        qla2x00_async_logout(vha, e->u.logio.fcport);
3313                        break;
3314                case QLA_EVT_ASYNC_LOGOUT_DONE:
3315                        qla2x00_async_logout_done(vha, e->u.logio.fcport,
3316                            e->u.logio.data);
3317                        break;
3318                case QLA_EVT_ASYNC_ADISC:
3319                        qla2x00_async_adisc(vha, e->u.logio.fcport,
3320                            e->u.logio.data);
3321                        break;
3322                case QLA_EVT_ASYNC_ADISC_DONE:
3323                        qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3324                            e->u.logio.data);
3325                        break;
3326                case QLA_EVT_UEVENT:
3327                        qla2x00_uevent_emit(vha, e->u.uevent.code);
3328                        break;
3329                }
3330                if (e->flags & QLA_EVT_FLAG_FREE)
3331                        kfree(e);
3332
3333                /* For each work completed decrement vha ref count */
3334                QLA_VHA_MARK_NOT_BUSY(vha);
3335        }
3336}
3337
3338/* Relogins all the fcports of a vport
3339 * Context: dpc thread
3340 */
3341void qla2x00_relogin(struct scsi_qla_host *vha)
3342{
3343        fc_port_t       *fcport;
3344        int status;
3345        uint16_t        next_loopid = 0;
3346        struct qla_hw_data *ha = vha->hw;
3347        uint16_t data[2];
3348
3349        list_for_each_entry(fcport, &vha->vp_fcports, list) {
3350        /*
3351         * If the port is not ONLINE then try to login
3352         * to it if we haven't run out of retries.
3353         */
3354                if (atomic_read(&fcport->state) != FCS_ONLINE &&
3355                    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3356                        fcport->login_retry--;
3357                        if (fcport->flags & FCF_FABRIC_DEVICE) {
3358                                if (fcport->flags & FCF_FCP2_DEVICE)
3359                                        ha->isp_ops->fabric_logout(vha,
3360                                                        fcport->loop_id,
3361                                                        fcport->d_id.b.domain,
3362                                                        fcport->d_id.b.area,
3363                                                        fcport->d_id.b.al_pa);
3364
3365                                if (fcport->loop_id == FC_NO_LOOP_ID) {
3366                                        fcport->loop_id = next_loopid =
3367                                            ha->min_external_loopid;
3368                                        status = qla2x00_find_new_loop_id(
3369                                            vha, fcport);
3370                                        if (status != QLA_SUCCESS) {
3371                                                /* Ran out of IDs to use */
3372                                                break;
3373                                        }
3374                                }
3375
3376                                if (IS_ALOGIO_CAPABLE(ha)) {
3377                                        fcport->flags |= FCF_ASYNC_SENT;
3378                                        data[0] = 0;
3379                                        data[1] = QLA_LOGIO_LOGIN_RETRIED;
3380                                        status = qla2x00_post_async_login_work(
3381                                            vha, fcport, data);
3382                                        if (status == QLA_SUCCESS)
3383                                                continue;
3384                                        /* Attempt a retry. */
3385                                        status = 1;
3386                                } else
3387                                        status = qla2x00_fabric_login(vha,
3388                                            fcport, &next_loopid);
3389                        } else
3390                                status = qla2x00_local_device_login(vha,
3391                                                                fcport);
3392
3393                        if (status == QLA_SUCCESS) {
3394                                fcport->old_loop_id = fcport->loop_id;
3395
3396                                ql_dbg(ql_dbg_disc, vha, 0x2003,
3397                                    "Port login OK: logged in ID 0x%x.\n",
3398                                    fcport->loop_id);
3399
3400                                qla2x00_update_fcport(vha, fcport);
3401
3402                        } else if (status == 1) {
3403                                set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3404                                /* retry the login again */
3405                                ql_dbg(ql_dbg_disc, vha, 0x2007,
3406                                    "Retrying %d login again loop_id 0x%x.\n",
3407                                    fcport->login_retry, fcport->loop_id);
3408                        } else {
3409                                fcport->login_retry = 0;
3410                        }
3411
3412                        if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3413                                fcport->loop_id = FC_NO_LOOP_ID;
3414                }
3415                if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3416                        break;
3417        }
3418}
3419
3420/**************************************************************************
3421* qla2x00_do_dpc
3422*   This kernel thread is a task that is schedule by the interrupt handler
3423*   to perform the background processing for interrupts.
3424*
3425* Notes:
3426* This task always run in the context of a kernel thread.  It
3427* is kick-off by the driver's detect code and starts up
3428* up one per adapter. It immediately goes to sleep and waits for
3429* some fibre event.  When either the interrupt handler or
3430* the timer routine detects a event it will one of the task
3431* bits then wake us up.
3432**************************************************************************/
3433static int
3434qla2x00_do_dpc(void *data)
3435{
3436        int             rval;
3437        scsi_qla_host_t *base_vha;
3438        struct qla_hw_data *ha;
3439
3440        ha = (struct qla_hw_data *)data;
3441        base_vha = pci_get_drvdata(ha->pdev);
3442
3443        set_user_nice(current, -20);
3444
3445        set_current_state(TASK_INTERRUPTIBLE);
3446        while (!kthread_should_stop()) {
3447                ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
3448                    "DPC handler sleeping.\n");
3449
3450                schedule();
3451                __set_current_state(TASK_RUNNING);
3452
3453                if (!base_vha->flags.init_done || ha->flags.mbox_busy)
3454                        goto end_loop;
3455
3456                if (ha->flags.eeh_busy) {
3457                        ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
3458                            "eeh_busy=%d.\n", ha->flags.eeh_busy);
3459                        goto end_loop;
3460                }
3461
3462                ha->dpc_active = 1;
3463
3464                ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
3465                    "DPC handler waking up.\n");
3466                ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
3467                    "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
3468
3469                qla2x00_do_work(base_vha);
3470
3471                if (IS_QLA82XX(ha)) {
3472                        if (test_and_clear_bit(ISP_UNRECOVERABLE,
3473                                &base_vha->dpc_flags)) {
3474                                qla82xx_idc_lock(ha);
3475                                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3476                                        QLA82XX_DEV_FAILED);
3477                                qla82xx_idc_unlock(ha);
3478                                ql_log(ql_log_info, base_vha, 0x4004,
3479                                    "HW State: FAILED.\n");
3480                                qla82xx_device_state_handler(base_vha);
3481                                continue;
3482                        }
3483
3484                        if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3485                                &base_vha->dpc_flags)) {
3486
3487                                ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
3488                                    "FCoE context reset scheduled.\n");
3489                                if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3490                                        &base_vha->dpc_flags))) {
3491                                        if (qla82xx_fcoe_ctx_reset(base_vha)) {
3492                                                /* FCoE-ctx reset failed.
3493                                                 * Escalate to chip-reset
3494                                                 */
3495                                                set_bit(ISP_ABORT_NEEDED,
3496                                                        &base_vha->dpc_flags);
3497                                        }
3498                                        clear_bit(ABORT_ISP_ACTIVE,
3499                                                &base_vha->dpc_flags);
3500                                }
3501
3502                                ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
3503                                    "FCoE context reset end.\n");
3504                        }
3505                }
3506
3507                if (test_and_clear_bit(ISP_ABORT_NEEDED,
3508                                                &base_vha->dpc_flags)) {
3509
3510                        ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
3511                            "ISP abort scheduled.\n");
3512                        if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3513                            &base_vha->dpc_flags))) {
3514
3515                                if (ha->isp_ops->abort_isp(base_vha)) {
3516                                        /* failed. retry later */
3517                                        set_bit(ISP_ABORT_NEEDED,
3518                                            &base_vha->dpc_flags);
3519                                }
3520                                clear_bit(ABORT_ISP_ACTIVE,
3521                                                &base_vha->dpc_flags);
3522                        }
3523
3524                        ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
3525                            "ISP abort end.\n");
3526                }
3527
3528                if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3529                        qla2x00_update_fcports(base_vha);
3530                        clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3531                }
3532
3533                if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3534                        ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
3535                            "Quiescence mode scheduled.\n");
3536                        qla82xx_device_state_handler(base_vha);
3537                        clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3538                        if (!ha->flags.quiesce_owner) {
3539                                qla2x00_perform_loop_resync(base_vha);
3540
3541                                qla82xx_idc_lock(ha);
3542                                qla82xx_clear_qsnt_ready(base_vha);
3543                                qla82xx_idc_unlock(ha);
3544                        }
3545                        ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
3546                            "Quiescence mode end.\n");
3547                }
3548
3549                if (test_and_clear_bit(RESET_MARKER_NEEDED,
3550                                                        &base_vha->dpc_flags) &&
3551                    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3552
3553                        ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
3554                            "Reset marker scheduled.\n");
3555                        qla2x00_rst_aen(base_vha);
3556                        clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3557                        ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
3558                            "Reset marker end.\n");
3559                }
3560
3561                /* Retry each device up to login retry count */
3562                if ((test_and_clear_bit(RELOGIN_NEEDED,
3563                                                &base_vha->dpc_flags)) &&
3564                    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3565                    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3566
3567                        ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
3568                            "Relogin scheduled.\n");
3569                        qla2x00_relogin(base_vha);
3570                        ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
3571                            "Relogin end.\n");
3572                }
3573
3574                if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3575                                                        &base_vha->dpc_flags)) {
3576
3577                        ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
3578                            "Loop resync scheduled.\n");
3579
3580                        if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3581                            &base_vha->dpc_flags))) {
3582
3583                                rval = qla2x00_loop_resync(base_vha);
3584
3585                                clear_bit(LOOP_RESYNC_ACTIVE,
3586                                                &base_vha->dpc_flags);
3587                        }
3588
3589                        ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
3590                            "Loop resync end.\n");
3591                }
3592
3593                if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3594                    atomic_read(&base_vha->loop_state) == LOOP_READY) {
3595                        clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3596                        qla2xxx_flash_npiv_conf(base_vha);
3597                }
3598
3599                if (!ha->interrupts_on)
3600                        ha->isp_ops->enable_intrs(ha);
3601
3602                if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3603                                        &base_vha->dpc_flags))
3604                        ha->isp_ops->beacon_blink(base_vha);
3605
3606                qla2x00_do_dpc_all_vps(base_vha);
3607
3608                ha->dpc_active = 0;
3609end_loop:
3610                set_current_state(TASK_INTERRUPTIBLE);
3611        } /* End of while(1) */
3612        __set_current_state(TASK_RUNNING);
3613
3614        ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
3615            "DPC handler exiting.\n");
3616
3617        /*
3618         * Make sure that nobody tries to wake us up again.
3619         */
3620        ha->dpc_active = 0;
3621
3622        /* Cleanup any residual CTX SRBs. */
3623        qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3624
3625        return 0;
3626}
3627
3628void
3629qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3630{
3631        struct qla_hw_data *ha = vha->hw;
3632        struct task_struct *t = ha->dpc_thread;
3633
3634        if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3635                wake_up_process(t);
3636}
3637
3638/*
3639*  qla2x00_rst_aen
3640*      Processes asynchronous reset.
3641*
3642* Input:
3643*      ha  = adapter block pointer.
3644*/
3645static void
3646qla2x00_rst_aen(scsi_qla_host_t *vha)
3647{
3648        if (vha->flags.online && !vha->flags.reset_active &&
3649            !atomic_read(&vha->loop_down_timer) &&
3650            !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3651                do {
3652                        clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3653
3654                        /*
3655                         * Issue marker command only when we are going to start
3656                         * the I/O.
3657                         */
3658                        vha->marker_needed = 1;
3659                } while (!atomic_read(&vha->loop_down_timer) &&
3660                    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3661        }
3662}
3663
3664static void
3665qla2x00_sp_free_dma(srb_t *sp)
3666{
3667        struct scsi_cmnd *cmd = sp->cmd;
3668        struct qla_hw_data *ha = sp->fcport->vha->hw;
3669
3670        if (sp->flags & SRB_DMA_VALID) {
3671                scsi_dma_unmap(cmd);
3672                sp->flags &= ~SRB_DMA_VALID;
3673        }
3674
3675        if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3676                dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3677                    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3678                sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3679        }
3680
3681        if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3682                /* List assured to be having elements */
3683                qla2x00_clean_dsd_pool(ha, sp);
3684                sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3685        }
3686
3687        if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3688                dma_pool_free(ha->dl_dma_pool, sp->ctx,
3689                    ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3690                sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3691        }
3692
3693        if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3694                struct ct6_dsd *ctx = sp->ctx;
3695                dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3696                        ctx->fcp_cmnd_dma);
3697                list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3698                ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3699                ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3700                mempool_free(sp->ctx, ha->ctx_mempool);
3701                sp->ctx = NULL;
3702        }
3703
3704        CMD_SP(cmd) = NULL;
3705}
3706
3707static void
3708qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3709{
3710        struct scsi_cmnd *cmd = sp->cmd;
3711
3712        qla2x00_sp_free_dma(sp);
3713        mempool_free(sp, ha->srb_mempool);
3714        cmd->scsi_done(cmd);
3715}
3716
3717void
3718qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3719{
3720        if (atomic_read(&sp->ref_count) == 0) {
3721                ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
3722                    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
3723                    sp, sp->cmd);
3724                if (ql2xextended_error_logging & ql_dbg_io)
3725                        BUG();
3726                return;
3727        }
3728        if (!atomic_dec_and_test(&sp->ref_count))
3729                return;
3730        qla2x00_sp_final_compl(ha, sp);
3731}
3732
3733/**************************************************************************
3734*   qla2x00_timer
3735*
3736* Description:
3737*   One second timer
3738*
3739* Context: Interrupt
3740***************************************************************************/
3741void
3742qla2x00_timer(scsi_qla_host_t *vha)
3743{
3744        unsigned long   cpu_flags = 0;
3745        int             start_dpc = 0;
3746        int             index;
3747        srb_t           *sp;
3748        uint16_t        w;
3749        struct qla_hw_data *ha = vha->hw;
3750        struct req_que *req;
3751
3752        if (ha->flags.eeh_busy) {
3753                ql_dbg(ql_dbg_timer, vha, 0x6000,
3754                    "EEH = %d, restarting timer.\n",
3755                    ha->flags.eeh_busy);
3756                qla2x00_restart_timer(vha, WATCH_INTERVAL);
3757                return;
3758        }
3759
3760        /* Hardware read to raise pending EEH errors during mailbox waits. */
3761        if (!pci_channel_offline(ha->pdev))
3762                pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3763
3764        /* Make sure qla82xx_watchdog is run only for physical port */
3765        if (!vha->vp_idx && IS_QLA82XX(ha)) {
3766                if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3767                        start_dpc++;
3768                qla82xx_watchdog(vha);
3769        }
3770
3771        /* Loop down handler. */
3772        if (atomic_read(&vha->loop_down_timer) > 0 &&
3773            !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3774            !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3775                && vha->flags.online) {
3776
3777                if (atomic_read(&vha->loop_down_timer) ==
3778                    vha->loop_down_abort_time) {
3779
3780                        ql_log(ql_log_info, vha, 0x6008,
3781                            "Loop down - aborting the queues before time expires.\n");
3782
3783                        if (!IS_QLA2100(ha) && vha->link_down_timeout)
3784                                atomic_set(&vha->loop_state, LOOP_DEAD);
3785
3786                        /*
3787                         * Schedule an ISP abort to return any FCP2-device
3788                         * commands.
3789                         */
3790                        /* NPIV - scan physical port only */
3791                        if (!vha->vp_idx) {
3792                                spin_lock_irqsave(&ha->hardware_lock,
3793                                    cpu_flags);
3794                                req = ha->req_q_map[0];
3795                                for (index = 1;
3796                                    index < MAX_OUTSTANDING_COMMANDS;
3797                                    index++) {
3798                                        fc_port_t *sfcp;
3799
3800                                        sp = req->outstanding_cmds[index];
3801                                        if (!sp)
3802                                                continue;
3803                                        if (sp->ctx && !IS_PROT_IO(sp))
3804                                                continue;
3805                                        sfcp = sp->fcport;
3806                                        if (!(sfcp->flags & FCF_FCP2_DEVICE))
3807                                                continue;
3808
3809                                        if (IS_QLA82XX(ha))
3810                                                set_bit(FCOE_CTX_RESET_NEEDED,
3811                                                        &vha->dpc_flags);
3812                                        else
3813                                                set_bit(ISP_ABORT_NEEDED,
3814                                                        &vha->dpc_flags);
3815                                        break;
3816                                }
3817                                spin_unlock_irqrestore(&ha->hardware_lock,
3818                                                                cpu_flags);
3819                        }
3820                        start_dpc++;
3821                }
3822
3823                /* if the loop has been down for 4 minutes, reinit adapter */
3824                if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3825                        if (!(vha->device_flags & DFLG_NO_CABLE)) {
3826                                ql_log(ql_log_warn, vha, 0x6009,
3827                                    "Loop down - aborting ISP.\n");
3828
3829                                if (IS_QLA82XX(ha))
3830                                        set_bit(FCOE_CTX_RESET_NEEDED,
3831                                                &vha->dpc_flags);
3832                                else
3833                                        set_bit(ISP_ABORT_NEEDED,
3834                                                &vha->dpc_flags);
3835                        }
3836                }
3837                ql_dbg(ql_dbg_timer, vha, 0x600a,
3838                    "Loop down - seconds remaining %d.\n",
3839                    atomic_read(&vha->loop_down_timer));
3840        }
3841
3842        /* Check if beacon LED needs to be blinked for physical host only */
3843        if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
3844                /* There is no beacon_blink function for ISP82xx */
3845                if (!IS_QLA82XX(ha)) {
3846                        set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3847                        start_dpc++;
3848                }
3849        }
3850
3851        /* Process any deferred work. */
3852        if (!list_empty(&vha->work_list))
3853                start_dpc++;
3854
3855        /* Schedule the DPC routine if needed */
3856        if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3857            test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3858            test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3859            start_dpc ||
3860            test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3861            test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3862            test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3863            test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3864            test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3865            test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
3866                ql_dbg(ql_dbg_timer, vha, 0x600b,
3867                    "isp_abort_needed=%d loop_resync_needed=%d "
3868                    "fcport_update_needed=%d start_dpc=%d "
3869                    "reset_marker_needed=%d",
3870                    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
3871                    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
3872                    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
3873                    start_dpc,
3874                    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
3875                ql_dbg(ql_dbg_timer, vha, 0x600c,
3876                    "beacon_blink_needed=%d isp_unrecoverable=%d "
3877                    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
3878                    "relogin_needed=%d.\n",
3879                    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
3880                    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
3881                    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
3882                    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
3883                    test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
3884                qla2xxx_wake_dpc(vha);
3885        }
3886
3887        qla2x00_restart_timer(vha, WATCH_INTERVAL);
3888}
3889
3890/* Firmware interface routines. */
3891
3892#define FW_BLOBS        8
3893#define FW_ISP21XX      0
3894#define FW_ISP22XX      1
3895#define FW_ISP2300      2
3896#define FW_ISP2322      3
3897#define FW_ISP24XX      4
3898#define FW_ISP25XX      5
3899#define FW_ISP81XX      6
3900#define FW_ISP82XX      7
3901
3902#define FW_FILE_ISP21XX "ql2100_fw.bin"
3903#define FW_FILE_ISP22XX "ql2200_fw.bin"
3904#define FW_FILE_ISP2300 "ql2300_fw.bin"
3905#define FW_FILE_ISP2322 "ql2322_fw.bin"
3906#define FW_FILE_ISP24XX "ql2400_fw.bin"
3907#define FW_FILE_ISP25XX "ql2500_fw.bin"
3908#define FW_FILE_ISP81XX "ql8100_fw.bin"
3909#define FW_FILE_ISP82XX "ql8200_fw.bin"
3910
3911static DEFINE_MUTEX(qla_fw_lock);
3912
3913static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3914        { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3915        { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3916        { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3917        { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3918        { .name = FW_FILE_ISP24XX, },
3919        { .name = FW_FILE_ISP25XX, },
3920        { .name = FW_FILE_ISP81XX, },
3921        { .name = FW_FILE_ISP82XX, },
3922};
3923
3924struct fw_blob *
3925qla2x00_request_firmware(scsi_qla_host_t *vha)
3926{
3927        struct qla_hw_data *ha = vha->hw;
3928        struct fw_blob *blob;
3929
3930        blob = NULL;
3931        if (IS_QLA2100(ha)) {
3932                blob = &qla_fw_blobs[FW_ISP21XX];
3933        } else if (IS_QLA2200(ha)) {
3934                blob = &qla_fw_blobs[FW_ISP22XX];
3935        } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3936                blob = &qla_fw_blobs[FW_ISP2300];
3937        } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3938                blob = &qla_fw_blobs[FW_ISP2322];
3939        } else if (IS_QLA24XX_TYPE(ha)) {
3940                blob = &qla_fw_blobs[FW_ISP24XX];
3941        } else if (IS_QLA25XX(ha)) {
3942                blob = &qla_fw_blobs[FW_ISP25XX];
3943        } else if (IS_QLA81XX(ha)) {
3944                blob = &qla_fw_blobs[FW_ISP81XX];
3945        } else if (IS_QLA82XX(ha)) {
3946                blob = &qla_fw_blobs[FW_ISP82XX];
3947        }
3948
3949        mutex_lock(&qla_fw_lock);
3950        if (blob->fw)
3951                goto out;
3952
3953        if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3954                ql_log(ql_log_warn, vha, 0x0063,
3955                    "Failed to load firmware image (%s).\n", blob->name);
3956                blob->fw = NULL;
3957                blob = NULL;
3958                goto out;
3959        }
3960
3961out:
3962        mutex_unlock(&qla_fw_lock);
3963        return blob;
3964}
3965
3966static void
3967qla2x00_release_firmware(void)
3968{
3969        int idx;
3970
3971        mutex_lock(&qla_fw_lock);
3972        for (idx = 0; idx < FW_BLOBS; idx++)
3973                if (qla_fw_blobs[idx].fw)
3974                        release_firmware(qla_fw_blobs[idx].fw);
3975        mutex_unlock(&qla_fw_lock);
3976}
3977
3978static pci_ers_result_t
3979qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3980{
3981        scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3982        struct qla_hw_data *ha = vha->hw;
3983
3984        ql_dbg(ql_dbg_aer, vha, 0x9000,
3985            "PCI error detected, state %x.\n", state);
3986
3987        switch (state) {
3988        case pci_channel_io_normal:
3989                ha->flags.eeh_busy = 0;
3990                return PCI_ERS_RESULT_CAN_RECOVER;
3991        case pci_channel_io_frozen:
3992                ha->flags.eeh_busy = 1;
3993                /* For ISP82XX complete any pending mailbox cmd */
3994                if (IS_QLA82XX(ha)) {
3995                        ha->flags.isp82xx_fw_hung = 1;
3996                        ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
3997                        qla82xx_clear_pending_mbx(vha);
3998                }
3999                qla2x00_free_irqs(vha);
4000                pci_disable_device(pdev);
4001                /* Return back all IOs */
4002                qla2x00_abort_all_cmds(vha, DID_RESET << 16);
4003                return PCI_ERS_RESULT_NEED_RESET;
4004        case pci_channel_io_perm_failure:
4005                ha->flags.pci_channel_io_perm_failure = 1;
4006                qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4007                return PCI_ERS_RESULT_DISCONNECT;
4008        }
4009        return PCI_ERS_RESULT_NEED_RESET;
4010}
4011
4012static pci_ers_result_t
4013qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
4014{
4015        int risc_paused = 0;
4016        uint32_t stat;
4017        unsigned long flags;
4018        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4019        struct qla_hw_data *ha = base_vha->hw;
4020        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4021        struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
4022
4023        if (IS_QLA82XX(ha))
4024                return PCI_ERS_RESULT_RECOVERED;
4025
4026        spin_lock_irqsave(&ha->hardware_lock, flags);
4027        if (IS_QLA2100(ha) || IS_QLA2200(ha)){
4028                stat = RD_REG_DWORD(&reg->hccr);
4029                if (stat & HCCR_RISC_PAUSE)
4030                        risc_paused = 1;
4031        } else if (IS_QLA23XX(ha)) {
4032                stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
4033                if (stat & HSR_RISC_PAUSED)
4034                        risc_paused = 1;
4035        } else if (IS_FWI2_CAPABLE(ha)) {
4036                stat = RD_REG_DWORD(&reg24->host_status);
4037                if (stat & HSRX_RISC_PAUSED)
4038                        risc_paused = 1;
4039        }
4040        spin_unlock_irqrestore(&ha->hardware_lock, flags);
4041
4042        if (risc_paused) {
4043                ql_log(ql_log_info, base_vha, 0x9003,
4044                    "RISC paused -- mmio_enabled, Dumping firmware.\n");
4045                ha->isp_ops->fw_dump(base_vha, 0);
4046
4047                return PCI_ERS_RESULT_NEED_RESET;
4048        } else
4049                return PCI_ERS_RESULT_RECOVERED;
4050}
4051
4052uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
4053{
4054        uint32_t rval = QLA_FUNCTION_FAILED;
4055        uint32_t drv_active = 0;
4056        struct qla_hw_data *ha = base_vha->hw;
4057        int fn;
4058        struct pci_dev *other_pdev = NULL;
4059
4060        ql_dbg(ql_dbg_aer, base_vha, 0x9006,
4061            "Entered %s.\n", __func__);
4062
4063        set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4064
4065        if (base_vha->flags.online) {
4066                /* Abort all outstanding commands,
4067                 * so as to be requeued later */
4068                qla2x00_abort_isp_cleanup(base_vha);
4069        }
4070
4071
4072        fn = PCI_FUNC(ha->pdev->devfn);
4073        while (fn > 0) {
4074                fn--;
4075                ql_dbg(ql_dbg_aer, base_vha, 0x9007,
4076                    "Finding pci device at function = 0x%x.\n", fn);
4077                other_pdev =
4078                    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4079                    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4080                    fn));
4081
4082                if (!other_pdev)
4083                        continue;
4084                if (atomic_read(&other_pdev->enable_cnt)) {
4085                        ql_dbg(ql_dbg_aer, base_vha, 0x9008,
4086                            "Found PCI func available and enable at 0x%x.\n",
4087                            fn);
4088                        pci_dev_put(other_pdev);
4089                        break;
4090                }
4091                pci_dev_put(other_pdev);
4092        }
4093
4094        if (!fn) {
4095                /* Reset owner */
4096                ql_dbg(ql_dbg_aer, base_vha, 0x9009,
4097                    "This devfn is reset owner = 0x%x.\n",
4098                    ha->pdev->devfn);
4099                qla82xx_idc_lock(ha);
4100
4101                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4102                    QLA82XX_DEV_INITIALIZING);
4103
4104                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
4105                    QLA82XX_IDC_VERSION);
4106
4107                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
4108                ql_dbg(ql_dbg_aer, base_vha, 0x900a,
4109                    "drv_active = 0x%x.\n", drv_active);
4110
4111                qla82xx_idc_unlock(ha);
4112                /* Reset if device is not already reset
4113                 * drv_active would be 0 if a reset has already been done
4114                 */
4115                if (drv_active)
4116                        rval = qla82xx_start_firmware(base_vha);
4117                else
4118                        rval = QLA_SUCCESS;
4119                qla82xx_idc_lock(ha);
4120
4121                if (rval != QLA_SUCCESS) {
4122                        ql_log(ql_log_info, base_vha, 0x900b,
4123                            "HW State: FAILED.\n");
4124                        qla82xx_clear_drv_active(ha);
4125                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4126                            QLA82XX_DEV_FAILED);
4127                } else {
4128                        ql_log(ql_log_info, base_vha, 0x900c,
4129                            "HW State: READY.\n");
4130                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4131                            QLA82XX_DEV_READY);
4132                        qla82xx_idc_unlock(ha);
4133                        ha->flags.isp82xx_fw_hung = 0;
4134                        rval = qla82xx_restart_isp(base_vha);
4135                        qla82xx_idc_lock(ha);
4136                        /* Clear driver state register */
4137                        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
4138                        qla82xx_set_drv_active(base_vha);
4139                }
4140                qla82xx_idc_unlock(ha);
4141        } else {
4142                ql_dbg(ql_dbg_aer, base_vha, 0x900d,
4143                    "This devfn is not reset owner = 0x%x.\n",
4144                    ha->pdev->devfn);
4145                if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
4146                    QLA82XX_DEV_READY)) {
4147                        ha->flags.isp82xx_fw_hung = 0;
4148                        rval = qla82xx_restart_isp(base_vha);
4149                        qla82xx_idc_lock(ha);
4150                        qla82xx_set_drv_active(base_vha);
4151                        qla82xx_idc_unlock(ha);
4152                }
4153        }
4154        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4155
4156        return rval;
4157}
4158
4159static pci_ers_result_t
4160qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4161{
4162        pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4163        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4164        struct qla_hw_data *ha = base_vha->hw;
4165        struct rsp_que *rsp;
4166        int rc, retries = 10;
4167
4168        ql_dbg(ql_dbg_aer, base_vha, 0x9004,
4169            "Slot Reset.\n");
4170
4171        /* Workaround: qla2xxx driver which access hardware earlier
4172         * needs error state to be pci_channel_io_online.
4173         * Otherwise mailbox command timesout.
4174         */
4175        pdev->error_state = pci_channel_io_normal;
4176
4177        pci_restore_state(pdev);
4178
4179        /* pci_restore_state() clears the saved_state flag of the device
4180         * save restored state which resets saved_state flag
4181         */
4182        pci_save_state(pdev);
4183
4184        if (ha->mem_only)
4185                rc = pci_enable_device_mem(pdev);
4186        else
4187                rc = pci_enable_device(pdev);
4188
4189        if (rc) {
4190                ql_log(ql_log_warn, base_vha, 0x9005,
4191                    "Can't re-enable PCI device after reset.\n");
4192                goto exit_slot_reset;
4193        }
4194
4195        rsp = ha->rsp_q_map[0];
4196        if (qla2x00_request_irqs(ha, rsp))
4197                goto exit_slot_reset;
4198
4199        if (ha->isp_ops->pci_config(base_vha))
4200                goto exit_slot_reset;
4201
4202        if (IS_QLA82XX(ha)) {
4203                if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4204                        ret = PCI_ERS_RESULT_RECOVERED;
4205                        goto exit_slot_reset;
4206                } else
4207                        goto exit_slot_reset;
4208        }
4209
4210        while (ha->flags.mbox_busy && retries--)
4211                msleep(1000);
4212
4213        set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4214        if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4215                ret =  PCI_ERS_RESULT_RECOVERED;
4216        clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4217
4218
4219exit_slot_reset:
4220        ql_dbg(ql_dbg_aer, base_vha, 0x900e,
4221            "slot_reset return %x.\n", ret);
4222
4223        return ret;
4224}
4225
4226static void
4227qla2xxx_pci_resume(struct pci_dev *pdev)
4228{
4229        scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4230        struct qla_hw_data *ha = base_vha->hw;
4231        int ret;
4232
4233        ql_dbg(ql_dbg_aer, base_vha, 0x900f,
4234            "pci_resume.\n");
4235
4236        ret = qla2x00_wait_for_hba_online(base_vha);
4237        if (ret != QLA_SUCCESS) {
4238                ql_log(ql_log_fatal, base_vha, 0x9002,
4239                    "The device failed to resume I/O from slot/link_reset.\n");
4240        }
4241
4242        pci_cleanup_aer_uncorrect_error_status(pdev);
4243
4244        ha->flags.eeh_busy = 0;
4245}
4246
4247static struct pci_error_handlers qla2xxx_err_handler = {
4248        .error_detected = qla2xxx_pci_error_detected,
4249        .mmio_enabled = qla2xxx_pci_mmio_enabled,
4250        .slot_reset = qla2xxx_pci_slot_reset,
4251        .resume = qla2xxx_pci_resume,
4252};
4253
4254static struct pci_device_id qla2xxx_pci_tbl[] = {
4255        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4256        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4257        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4258        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4259        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4260        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4261        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4262        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4263        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4264        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4265        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4266        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4267        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4268        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4269        { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4270        { 0 },
4271};
4272MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4273
4274static struct pci_driver qla2xxx_pci_driver = {
4275        .name           = QLA2XXX_DRIVER_NAME,
4276        .driver         = {
4277                .owner          = THIS_MODULE,
4278        },
4279        .id_table       = qla2xxx_pci_tbl,
4280        .probe          = qla2x00_probe_one,
4281        .remove         = qla2x00_remove_one,
4282        .shutdown       = qla2x00_shutdown,
4283        .err_handler    = &qla2xxx_err_handler,
4284};
4285
4286static struct file_operations apidev_fops = {
4287        .owner = THIS_MODULE,
4288        .llseek = noop_llseek,
4289};
4290
4291/**
4292 * qla2x00_module_init - Module initialization.
4293 **/
4294static int __init
4295qla2x00_module_init(void)
4296{
4297        int ret = 0;
4298
4299        /* Allocate cache for SRBs. */
4300        srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4301            SLAB_HWCACHE_ALIGN, NULL);
4302        if (srb_cachep == NULL) {
4303                ql_log(ql_log_fatal, NULL, 0x0001,
4304                    "Unable to allocate SRB cache...Failing load!.\n");
4305                return -ENOMEM;
4306        }
4307
4308        /* Derive version string. */
4309        strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4310        if (ql2xextended_error_logging)
4311                strcat(qla2x00_version_str, "-debug");
4312
4313        qla2xxx_transport_template =
4314            fc_attach_transport(&qla2xxx_transport_functions);
4315        if (!qla2xxx_transport_template) {
4316                kmem_cache_destroy(srb_cachep);
4317                ql_log(ql_log_fatal, NULL, 0x0002,
4318                    "fc_attach_transport failed...Failing load!.\n");
4319                return -ENODEV;
4320        }
4321
4322        apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4323        if (apidev_major < 0) {
4324                ql_log(ql_log_fatal, NULL, 0x0003,
4325                    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
4326        }
4327
4328        qla2xxx_transport_vport_template =
4329            fc_attach_transport(&qla2xxx_transport_vport_functions);
4330        if (!qla2xxx_transport_vport_template) {
4331                kmem_cache_destroy(srb_cachep);
4332                fc_release_transport(qla2xxx_transport_template);
4333                ql_log(ql_log_fatal, NULL, 0x0004,
4334                    "fc_attach_transport vport failed...Failing load!.\n");
4335                return -ENODEV;
4336        }
4337        ql_log(ql_log_info, NULL, 0x0005,
4338            "QLogic Fibre Channel HBA Driver: %s.\n",
4339            qla2x00_version_str);
4340        ret = pci_register_driver(&qla2xxx_pci_driver);
4341        if (ret) {
4342                kmem_cache_destroy(srb_cachep);
4343                fc_release_transport(qla2xxx_transport_template);
4344                fc_release_transport(qla2xxx_transport_vport_template);
4345                ql_log(ql_log_fatal, NULL, 0x0006,
4346                    "pci_register_driver failed...ret=%d Failing load!.\n",
4347                    ret);
4348        }
4349        return ret;
4350}
4351
4352/**
4353 * qla2x00_module_exit - Module cleanup.
4354 **/
4355static void __exit
4356qla2x00_module_exit(void)
4357{
4358        unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4359        pci_unregister_driver(&qla2xxx_pci_driver);
4360        qla2x00_release_firmware();
4361        kmem_cache_destroy(srb_cachep);
4362        if (ctx_cachep)
4363                kmem_cache_destroy(ctx_cachep);
4364        fc_release_transport(qla2xxx_transport_template);
4365        fc_release_transport(qla2xxx_transport_vport_template);
4366}
4367
4368module_init(qla2x00_module_init);
4369module_exit(qla2x00_module_exit);
4370
4371MODULE_AUTHOR("QLogic Corporation");
4372MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4373MODULE_LICENSE("GPL");
4374MODULE_VERSION(QLA2XXX_VERSION);
4375MODULE_FIRMWARE(FW_FILE_ISP21XX);
4376MODULE_FIRMWARE(FW_FILE_ISP22XX);
4377MODULE_FIRMWARE(FW_FILE_ISP2300);
4378MODULE_FIRMWARE(FW_FILE_ISP2322);
4379MODULE_FIRMWARE(FW_FILE_ISP24XX);
4380MODULE_FIRMWARE(FW_FILE_ISP25XX);
4381