drivers/scsi/qla2xxx/qla_os.c

   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  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38 /*
  39  * error level for logging
  40  */
  41 int ql_errlev = ql_log_all;
  42
  43 int ql2xlogintimeout = 20;
  44 module_param(ql2xlogintimeout, int, S_IRUGO);
  45 MODULE_PARM_DESC(ql2xlogintimeout,
  46                 "Login timeout value in seconds.");
  47
  48 int qlport_down_retry;
  49 module_param(qlport_down_retry, int, S_IRUGO);
  50 MODULE_PARM_DESC(qlport_down_retry,
  51                 "Maximum number of command retries to a port that returns "
  52                 "a PORT-DOWN status.");
  53
  54 int ql2xplogiabsentdevice;
  55 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  56 MODULE_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
  61 int ql2xloginretrycount = 0;
  62 module_param(ql2xloginretrycount, int, S_IRUGO);
  63 MODULE_PARM_DESC(ql2xloginretrycount,
  64                 "Specify an alternate value for the NVRAM login retry count.");
  65
  66 int ql2xallocfwdump = 1;
  67 module_param(ql2xallocfwdump, int, S_IRUGO);
  68 MODULE_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
  73 int ql2xextended_error_logging;
  74 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  75 MODULE_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
  91 int ql2xshiftctondsd = 6;
  92 module_param(ql2xshiftctondsd, int, S_IRUGO);
  93 MODULE_PARM_DESC(ql2xshiftctondsd,
  94                 "Set to control shifting of command type processing "
  95                 "based on total number of SG elements.");
  96
  97 static void qla2x00_free_device(scsi_qla_host_t *);
  98
  99 int ql2xfdmienable=1;
 100 module_param(ql2xfdmienable, int, S_IRUGO);
 101 MODULE_PARM_DESC(ql2xfdmienable,
 102                 "Enables FDMI registrations. "
 103                 "0 - no FDMI. Default is 1 - perform FDMI.");
 104
 105 #define MAX_Q_DEPTH    32
 106 static int ql2xmaxqdepth = MAX_Q_DEPTH;
 107 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
 108 MODULE_PARM_DESC(ql2xmaxqdepth,
 109                 "Maximum queue depth to report for target devices.");
 110
 111 /* Do not change the value of this after module load */
 112 int ql2xenabledif = 0;
 113 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
 114 MODULE_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
 119 int ql2xenablehba_err_chk = 2;
 120 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 121 MODULE_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
 128 int ql2xiidmaenable=1;
 129 module_param(ql2xiidmaenable, int, S_IRUGO);
 130 MODULE_PARM_DESC(ql2xiidmaenable,
 131                 "Enables iIDMA settings "
 132                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 133
 134 int ql2xmaxqueues = 1;
 135 module_param(ql2xmaxqueues, int, S_IRUGO);
 136 MODULE_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
 141 int ql2xmultique_tag;
 142 module_param(ql2xmultique_tag, int, S_IRUGO);
 143 MODULE_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
 148 int ql2xfwloadbin;
 149 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
 150 MODULE_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
 157 int ql2xetsenable;
 158 module_param(ql2xetsenable, int, S_IRUGO);
 159 MODULE_PARM_DESC(ql2xetsenable,
 160                 "Enables firmware ETS burst."
 161                 "Default is 0 - skip ETS enablement.");
 162
 163 int ql2xdbwr = 1;
 164 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
 165 MODULE_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
 170 int ql2xtargetreset = 1;
 171 module_param(ql2xtargetreset, int, S_IRUGO);
 172 MODULE_PARM_DESC(ql2xtargetreset,
 173                  "Enable target reset."
 174                  "Default is 1 - use hw defaults.");
 175
 176 int ql2xgffidenable;
 177 module_param(ql2xgffidenable, int, S_IRUGO);
 178 MODULE_PARM_DESC(ql2xgffidenable,
 179                 "Enables GFF_ID checks of port type. "
 180                 "Default is 0 - Do not use GFF_ID information.");
 181
 182 int ql2xasynctmfenable;
 183 module_param(ql2xasynctmfenable, int, S_IRUGO);
 184 MODULE_PARM_DESC(ql2xasynctmfenable,
 185                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 186                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 187
 188 int ql2xdontresethba;
 189 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
 190 MODULE_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
 195 uint ql2xmaxlun = MAX_LUNS;
 196 module_param(ql2xmaxlun, uint, S_IRUGO);
 197 MODULE_PARM_DESC(ql2xmaxlun,
 198                 "Defines the maximum LU number to register with the SCSI "
 199                 "midlayer. Default is 65535.");
 200
 201 int ql2xmdcapmask = 0x1F;
 202 module_param(ql2xmdcapmask, int, S_IRUGO);
 203 MODULE_PARM_DESC(ql2xmdcapmask,
 204                 "Set the Minidump driver capture mask level. "
 205                 "Default is 0x7F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
 206
 207 int ql2xmdenable = 1;
 208 module_param(ql2xmdenable, int, S_IRUGO);
 209 MODULE_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  */
 217 static int qla2xxx_slave_configure(struct scsi_device * device);
 218 static int qla2xxx_slave_alloc(struct scsi_device *);
 219 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 220 static void qla2xxx_scan_start(struct Scsi_Host *);
 221 static void qla2xxx_slave_destroy(struct scsi_device *);
 222 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 223 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 224 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 225 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 226 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 227 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 228
 229 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 230 static int qla2x00_change_queue_type(struct scsi_device *, int);
 231
 232 struct 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
 260 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 261 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 262
 263 /* TODO Convert to inlines
 264  *
 265  * Timer routines
 266  */
 267
 268 __inline__ void
 269 qla2x00_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
 279 static inline void
 280 qla2x00_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
 292 static __inline__ void
 293 qla2x00_stop_timer(scsi_qla_host_t *vha)
 294 {
 295         del_timer_sync(&vha->timer);
 296         vha->timer_active = 0;
 297 }
 298
 299 static int qla2x00_do_dpc(void *data);
 300
 301 static void qla2x00_rst_aen(scsi_qla_host_t *);
 302
 303 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 304         struct req_que **, struct rsp_que **);
 305 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 306 static void qla2x00_mem_free(struct qla_hw_data *);
 307 static void qla2x00_sp_free_dma(srb_t *);
 308
 309 /* -------------------------------------------------------------------------- */
 310 static 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
 332 fail_rsp_map:
 333         kfree(ha->req_q_map);
 334         ha->req_q_map = NULL;
 335 fail_req_map:
 336         return -ENOMEM;
 337 }
 338
 339 static 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
 350 static 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
 361 static 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
 382 static 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;
 425 fail2:
 426         qla25xx_delete_queues(vha);
 427         destroy_workqueue(ha->wq);
 428         ha->wq = NULL;
 429         vha->req = ha->req_q_map[0];
 430 fail:
 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
 438 static char *
 439 qla2x00_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
 462 static char *
 463 qla24xx_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
 513 static char *
 514 qla2x00_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
 552 static char *
 553 qla24xx_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
 562 static inline srb_t *
 563 qla2x00_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
 586 static int
 587 qla2xxx_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         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 629                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 630                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 631                         ql_dbg(ql_dbg_io, vha, 0x3005,
 632                             "Returning DNC, fcport_state=%d loop_state=%d.\n",
 633                             atomic_read(&fcport->state),
 634                             atomic_read(&base_vha->loop_state));
 635                         cmd->result = DID_NO_CONNECT << 16;
 636                         goto qc24_fail_command;
 637                 }
 638                 goto qc24_target_busy;
 639         }
 640
 641         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 642         if (!sp)
 643                 goto qc24_host_busy;
 644
 645         rval = ha->isp_ops->start_scsi(sp);
 646         if (rval != QLA_SUCCESS) {
 647                 ql_dbg(ql_dbg_io, vha, 0x3013,
 648                     "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
 649                 goto qc24_host_busy_free_sp;
 650         }
 651
 652         return 0;
 653
 654 qc24_host_busy_free_sp:
 655         qla2x00_sp_free_dma(sp);
 656         mempool_free(sp, ha->srb_mempool);
 657
 658 qc24_host_busy:
 659         return SCSI_MLQUEUE_HOST_BUSY;
 660
 661 qc24_target_busy:
 662         return SCSI_MLQUEUE_TARGET_BUSY;
 663
 664 qc24_fail_command:
 665         cmd->scsi_done(cmd);
 666
 667         return 0;
 668 }
 669
 670 /*
 671  * qla2x00_eh_wait_on_command
 672  *    Waits for the command to be returned by the Firmware for some
 673  *    max time.
 674  *
 675  * Input:
 676  *    cmd = Scsi Command to wait on.
 677  *
 678  * Return:
 679  *    Not Found : 0
 680  *    Found : 1
 681  */
 682 static int
 683 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 684 {
 685 #define ABORT_POLLING_PERIOD    1000
 686 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 687         unsigned long wait_iter = ABORT_WAIT_ITER;
 688         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 689         struct qla_hw_data *ha = vha->hw;
 690         int ret = QLA_SUCCESS;
 691
 692         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 693                 ql_dbg(ql_dbg_taskm, vha, 0x8005,
 694                     "Return:eh_wait.\n");
 695                 return ret;
 696         }
 697
 698         while (CMD_SP(cmd) && wait_iter--) {
 699                 msleep(ABORT_POLLING_PERIOD);
 700         }
 701         if (CMD_SP(cmd))
 702                 ret = QLA_FUNCTION_FAILED;
 703
 704         return ret;
 705 }
 706
 707 /*
 708  * qla2x00_wait_for_hba_online
 709  *    Wait till the HBA is online after going through
 710  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 711  *    finally HBA is disabled ie marked offline
 712  *
 713  * Input:
 714  *     ha - pointer to host adapter structure
 715  *
 716  * Note:
 717  *    Does context switching-Release SPIN_LOCK
 718  *    (if any) before calling this routine.
 719  *
 720  * Return:
 721  *    Success (Adapter is online) : 0
 722  *    Failed  (Adapter is offline/disabled) : 1
 723  */
 724 int
 725 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 726 {
 727         int             return_status;
 728         unsigned long   wait_online;
 729         struct qla_hw_data *ha = vha->hw;
 730         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 731
 732         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 733         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 734             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 735             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 736             ha->dpc_active) && time_before(jiffies, wait_online)) {
 737
 738                 msleep(1000);
 739         }
 740         if (base_vha->flags.online)
 741                 return_status = QLA_SUCCESS;
 742         else
 743                 return_status = QLA_FUNCTION_FAILED;
 744
 745         return (return_status);
 746 }
 747
 748 /*
 749  * qla2x00_wait_for_reset_ready
 750  *    Wait till the HBA is online after going through
 751  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 752  *    finally HBA is disabled ie marked offline or flash
 753  *    operations are in progress.
 754  *
 755  * Input:
 756  *     ha - pointer to host adapter structure
 757  *
 758  * Note:
 759  *    Does context switching-Release SPIN_LOCK
 760  *    (if any) before calling this routine.
 761  *
 762  * Return:
 763  *    Success (Adapter is online/no flash ops) : 0
 764  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 765  */
 766 static int
 767 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 768 {
 769         int             return_status;
 770         unsigned long   wait_online;
 771         struct qla_hw_data *ha = vha->hw;
 772         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 773
 774         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 775         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 776             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 777             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 778             ha->optrom_state != QLA_SWAITING ||
 779             ha->dpc_active) && time_before(jiffies, wait_online))
 780                 msleep(1000);
 781
 782         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 783                 return_status = QLA_SUCCESS;
 784         else
 785                 return_status = QLA_FUNCTION_FAILED;
 786
 787         ql_dbg(ql_dbg_taskm, vha, 0x8019,
 788             "%s return status=%d.\n", __func__, return_status);
 789
 790         return return_status;
 791 }
 792
 793 int
 794 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 795 {
 796         int             return_status;
 797         unsigned long   wait_reset;
 798         struct qla_hw_data *ha = vha->hw;
 799         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 800
 801         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 802         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 803             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 804             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 805             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 806
 807                 msleep(1000);
 808
 809                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 810                     ha->flags.chip_reset_done)
 811                         break;
 812         }
 813         if (ha->flags.chip_reset_done)
 814                 return_status = QLA_SUCCESS;
 815         else
 816                 return_status = QLA_FUNCTION_FAILED;
 817
 818         return return_status;
 819 }
 820
 821 static void
 822 sp_get(struct srb *sp)
 823 {
 824         atomic_inc(&sp->ref_count);
 825 }
 826
 827 /**************************************************************************
 828 * qla2xxx_eh_abort
 829 *
 830 * Description:
 831 *    The abort function will abort the specified command.
 832 *
 833 * Input:
 834 *    cmd = Linux SCSI command packet to be aborted.
 835 *
 836 * Returns:
 837 *    Either SUCCESS or FAILED.
 838 *
 839 * Note:
 840 *    Only return FAILED if command not returned by firmware.
 841 **************************************************************************/
 842 static int
 843 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 844 {
 845         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 846         srb_t *sp;
 847         int ret;
 848         unsigned int id, lun;
 849         unsigned long flags;
 850         int wait = 0;
 851         struct qla_hw_data *ha = vha->hw;
 852
 853         if (!CMD_SP(cmd))
 854                 return SUCCESS;
 855
 856         ret = fc_block_scsi_eh(cmd);
 857         if (ret != 0)
 858                 return ret;
 859         ret = SUCCESS;
 860
 861         id = cmd->device->id;
 862         lun = cmd->device->lun;
 863
 864         spin_lock_irqsave(&ha->hardware_lock, flags);
 865         sp = (srb_t *) CMD_SP(cmd);
 866         if (!sp) {
 867                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 868                 return SUCCESS;
 869         }
 870
 871         ql_dbg(ql_dbg_taskm, vha, 0x8002,
 872             "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
 873             vha->host_no, id, lun, sp, cmd);
 874
 875         /* Get a reference to the sp and drop the lock.*/
 876         sp_get(sp);
 877
 878         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 879         if (ha->isp_ops->abort_command(sp)) {
 880                 ql_dbg(ql_dbg_taskm, vha, 0x8003,
 881                     "Abort command mbx failed cmd=%p.\n", cmd);
 882         } else {
 883                 ql_dbg(ql_dbg_taskm, vha, 0x8004,
 884                     "Abort command mbx success cmd=%p.\n", cmd);
 885                 wait = 1;
 886         }
 887
 888         spin_lock_irqsave(&ha->hardware_lock, flags);
 889         qla2x00_sp_compl(ha, sp);
 890         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 891
 892         /* Did the command return during mailbox execution? */
 893         if (ret == FAILED && !CMD_SP(cmd))
 894                 ret = SUCCESS;
 895
 896         /* Wait for the command to be returned. */
 897         if (wait) {
 898                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 899                         ql_log(ql_log_warn, vha, 0x8006,
 900                             "Abort handler timed out cmd=%p.\n", cmd);
 901                         ret = FAILED;
 902                 }
 903         }
 904
 905         ql_log(ql_log_info, vha, 0x801c,
 906             "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
 907             vha->host_no, id, lun, wait, ret);
 908
 909         return ret;
 910 }
 911
 912 int
 913 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 914         unsigned int l, enum nexus_wait_type type)
 915 {
 916         int cnt, match, status;
 917         unsigned long flags;
 918         struct qla_hw_data *ha = vha->hw;
 919         struct req_que *req;
 920         srb_t *sp;
 921
 922         status = QLA_SUCCESS;
 923
 924         spin_lock_irqsave(&ha->hardware_lock, flags);
 925         req = vha->req;
 926         for (cnt = 1; status == QLA_SUCCESS &&
 927                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 928                 sp = req->outstanding_cmds[cnt];
 929                 if (!sp)
 930                         continue;
 931                 if ((sp->ctx) && !IS_PROT_IO(sp))
 932                         continue;
 933                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 934                         continue;
 935                 match = 0;
 936                 switch (type) {
 937                 case WAIT_HOST:
 938                         match = 1;
 939                         break;
 940                 case WAIT_TARGET:
 941                         match = sp->cmd->device->id == t;
 942                         break;
 943                 case WAIT_LUN:
 944                         match = (sp->cmd->device->id == t &&
 945                                 sp->cmd->device->lun == l);
 946                         break;
 947                 }
 948                 if (!match)
 949                         continue;
 950
 951                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 952                 status = qla2x00_eh_wait_on_command(sp->cmd);
 953                 spin_lock_irqsave(&ha->hardware_lock, flags);
 954         }
 955         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 956
 957         return status;
 958 }
 959
 960 static char *reset_errors[] = {
 961         "HBA not online",
 962         "HBA not ready",
 963         "Task management failed",
 964         "Waiting for command completions",
 965 };
 966
 967 static int
 968 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 969     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 970 {
 971         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 972         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 973         int err;
 974
 975         if (!fcport) {
 976                 return FAILED;
 977         }
 978
 979         err = fc_block_scsi_eh(cmd);
 980         if (err != 0)
 981                 return err;
 982
 983         ql_log(ql_log_info, vha, 0x8009,
 984             "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
 985             cmd->device->id, cmd->device->lun, cmd);
 986
 987         err = 0;
 988         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 989                 ql_log(ql_log_warn, vha, 0x800a,
 990                     "Wait for hba online failed for cmd=%p.\n", cmd);
 991                 goto eh_reset_failed;
 992         }
 993         err = 2;
 994         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 995                 != QLA_SUCCESS) {
 996                 ql_log(ql_log_warn, vha, 0x800c,
 997                     "do_reset failed for cmd=%p.\n", cmd);
 998                 goto eh_reset_failed;
 999         }
1000         err = 3;
1001         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1002             cmd->device->lun, type) != QLA_SUCCESS) {
1003                 ql_log(ql_log_warn, vha, 0x800d,
1004                     "wait for peding cmds failed for cmd=%p.\n", cmd);
1005                 goto eh_reset_failed;
1006         }
1007
1008         ql_log(ql_log_info, vha, 0x800e,
1009             "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1010             vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1011
1012         return SUCCESS;
1013
1014 eh_reset_failed:
1015         ql_log(ql_log_info, vha, 0x800f,
1016             "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1017             reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1018             cmd);
1019         return FAILED;
1020 }
1021
1022 static int
1023 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1024 {
1025         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1026         struct qla_hw_data *ha = vha->hw;
1027
1028         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1029             ha->isp_ops->lun_reset);
1030 }
1031
1032 static int
1033 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1034 {
1035         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1036         struct qla_hw_data *ha = vha->hw;
1037
1038         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1039             ha->isp_ops->target_reset);
1040 }
1041
1042 /**************************************************************************
1043 * qla2xxx_eh_bus_reset
1044 *
1045 * Description:
1046 *    The bus reset function will reset the bus and abort any executing
1047 *    commands.
1048 *
1049 * Input:
1050 *    cmd = Linux SCSI command packet of the command that cause the
1051 *          bus reset.
1052 *
1053 * Returns:
1054 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1055 *
1056 **************************************************************************/
1057 static int
1058 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1059 {
1060         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1061         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1062         int ret = FAILED;
1063         unsigned int id, lun;
1064
1065         id = cmd->device->id;
1066         lun = cmd->device->lun;
1067
1068         if (!fcport) {
1069                 return ret;
1070         }
1071
1072         ret = fc_block_scsi_eh(cmd);
1073         if (ret != 0)
1074                 return ret;
1075         ret = FAILED;
1076
1077         ql_log(ql_log_info, vha, 0x8012,
1078             "BUS RESET ISSUED nexus=%ld:%d%d.\n", vha->host_no, id, lun);
1079
1080         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1081                 ql_log(ql_log_fatal, vha, 0x8013,
1082                     "Wait for hba online failed board disabled.\n");
1083                 goto eh_bus_reset_done;
1084         }
1085
1086         if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1087                 ret = SUCCESS;
1088
1089         if (ret == FAILED)
1090                 goto eh_bus_reset_done;
1091
1092         /* Flush outstanding commands. */
1093         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1094             QLA_SUCCESS) {
1095                 ql_log(ql_log_warn, vha, 0x8014,
1096                     "Wait for pending commands failed.\n");
1097                 ret = FAILED;
1098         }
1099
1100 eh_bus_reset_done:
1101         ql_log(ql_log_warn, vha, 0x802b,
1102             "BUS RESET %s nexus=%ld:%d:%d.\n",
1103             (ret == FAILED) ? "FAILED" : "SUCCEDED", vha->host_no, id, lun);
1104
1105         return ret;
1106 }
1107
1108 /**************************************************************************
1109 * qla2xxx_eh_host_reset
1110 *
1111 * Description:
1112 *    The reset function will reset the Adapter.
1113 *
1114 * Input:
1115 *      cmd = Linux SCSI command packet of the command that cause the
1116 *            adapter reset.
1117 *
1118 * Returns:
1119 *      Either SUCCESS or FAILED.
1120 *
1121 * Note:
1122 **************************************************************************/
1123 static int
1124 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1125 {
1126         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1127         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1128         struct qla_hw_data *ha = vha->hw;
1129         int ret = FAILED;
1130         unsigned int id, lun;
1131         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1132
1133         id = cmd->device->id;
1134         lun = cmd->device->lun;
1135
1136         if (!fcport) {
1137                 return ret;
1138         }
1139
1140         ret = fc_block_scsi_eh(cmd);
1141         if (ret != 0)
1142                 return ret;
1143         ret = FAILED;
1144
1145         ql_log(ql_log_info, vha, 0x8018,
1146             "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1147
1148         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1149                 goto eh_host_reset_lock;
1150
1151         if (vha != base_vha) {
1152                 if (qla2x00_vp_abort_isp(vha))
1153                         goto eh_host_reset_lock;
1154         } else {
1155                 if (IS_QLA82XX(vha->hw)) {
1156                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1157                                 /* Ctx reset success */
1158                                 ret = SUCCESS;
1159                                 goto eh_host_reset_lock;
1160                         }
1161                         /* fall thru if ctx reset failed */
1162                 }
1163                 if (ha->wq)
1164                         flush_workqueue(ha->wq);
1165
1166                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1167                 if (ha->isp_ops->abort_isp(base_vha)) {
1168                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1169                         /* failed. schedule dpc to try */
1170                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1171
1172                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1173                                 ql_log(ql_log_warn, vha, 0x802a,
1174                                     "wait for hba online failed.\n");
1175                                 goto eh_host_reset_lock;
1176                         }
1177                 }
1178                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1179         }
1180
1181         /* Waiting for command to be returned to OS.*/
1182         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1183                 QLA_SUCCESS)
1184                 ret = SUCCESS;
1185
1186 eh_host_reset_lock:
1187         ql_log(ql_log_info, vha, 0x8017,
1188             "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1189             (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1190
1191         return ret;
1192 }
1193
1194 /*
1195 * qla2x00_loop_reset
1196 *      Issue loop reset.
1197 *
1198 * Input:
1199 *      ha = adapter block pointer.
1200 *
1201 * Returns:
1202 *      0 = success
1203 */
1204 int
1205 qla2x00_loop_reset(scsi_qla_host_t *vha)
1206 {
1207         int ret;
1208         struct fc_port *fcport;
1209         struct qla_hw_data *ha = vha->hw;
1210
1211         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1212                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1213                         if (fcport->port_type != FCT_TARGET)
1214                                 continue;
1215
1216                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1217                         if (ret != QLA_SUCCESS) {
1218                                 ql_dbg(ql_dbg_taskm, vha, 0x802c,
1219                                     "Bus Reset failed: Target Reset=%d "
1220                                     "d_id=%x.\n", ret, fcport->d_id.b24);
1221                         }
1222                 }
1223         }
1224
1225         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1226                 ret = qla2x00_full_login_lip(vha);
1227                 if (ret != QLA_SUCCESS) {
1228                         ql_dbg(ql_dbg_taskm, vha, 0x802d,
1229                             "full_login_lip=%d.\n", ret);
1230                 }
1231                 atomic_set(&vha->loop_state, LOOP_DOWN);
1232                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1233                 qla2x00_mark_all_devices_lost(vha, 0);
1234         }
1235
1236         if (ha->flags.enable_lip_reset) {
1237                 ret = qla2x00_lip_reset(vha);
1238                 if (ret != QLA_SUCCESS)
1239                         ql_dbg(ql_dbg_taskm, vha, 0x802e,
1240                             "lip_reset failed (%d).\n", ret);
1241         }
1242
1243         /* Issue marker command only when we are going to start the I/O */
1244         vha->marker_needed = 1;
1245
1246         return QLA_SUCCESS;
1247 }
1248
1249 void
1250 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1251 {
1252         int que, cnt;
1253         unsigned long flags;
1254         srb_t *sp;
1255         struct srb_ctx *ctx;
1256         struct qla_hw_data *ha = vha->hw;
1257         struct req_que *req;
1258
1259         spin_lock_irqsave(&ha->hardware_lock, flags);
1260         for (que = 0; que < ha->max_req_queues; que++) {
1261                 req = ha->req_q_map[que];
1262                 if (!req)
1263                         continue;
1264                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1265                         sp = req->outstanding_cmds[cnt];
1266                         if (sp) {
1267                                 req->outstanding_cmds[cnt] = NULL;
1268                                 if (!sp->ctx ||
1269                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1270                                         IS_PROT_IO(sp)) {
1271                                         sp->cmd->result = res;
1272                                         qla2x00_sp_compl(ha, sp);
1273                                 } else {
1274                                         ctx = sp->ctx;
1275                                         if (ctx->type == SRB_ELS_CMD_RPT ||
1276                                             ctx->type == SRB_ELS_CMD_HST ||
1277                                             ctx->type == SRB_CT_CMD) {
1278                                                 struct fc_bsg_job *bsg_job =
1279                                                     ctx->u.bsg_job;
1280                                                 if (bsg_job->request->msgcode
1281                                                     == FC_BSG_HST_CT)
1282                                                         kfree(sp->fcport);
1283                                                 bsg_job->req->errors = 0;
1284                                                 bsg_job->reply->result = res;
1285                                                 bsg_job->job_done(bsg_job);
1286                                                 kfree(sp->ctx);
1287                                                 mempool_free(sp,
1288                                                         ha->srb_mempool);
1289                                         } else {
1290                                                 ctx->u.iocb_cmd->free(sp);
1291                                         }
1292                                 }
1293                         }
1294                 }
1295         }
1296         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1297 }
1298
1299 static int
1300 qla2xxx_slave_alloc(struct scsi_device *sdev)
1301 {
1302         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1303
1304         if (!rport || fc_remote_port_chkready(rport))
1305                 return -ENXIO;
1306
1307         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1308
1309         return 0;
1310 }
1311
1312 static int
1313 qla2xxx_slave_configure(struct scsi_device *sdev)
1314 {
1315         scsi_qla_host_t *vha = shost_priv(sdev->host);
1316         struct req_que *req = vha->req;
1317
1318         if (sdev->tagged_supported)
1319                 scsi_activate_tcq(sdev, req->max_q_depth);
1320         else
1321                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1322         return 0;
1323 }
1324
1325 static void
1326 qla2xxx_slave_destroy(struct scsi_device *sdev)
1327 {
1328         sdev->hostdata = NULL;
1329 }
1330
1331 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1332 {
1333         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1334
1335         if (!scsi_track_queue_full(sdev, qdepth))
1336                 return;
1337
1338         ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1339             "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1340             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1341 }
1342
1343 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1344 {
1345         fc_port_t *fcport = sdev->hostdata;
1346         struct scsi_qla_host *vha = fcport->vha;
1347         struct req_que *req = NULL;
1348
1349         req = vha->req;
1350         if (!req)
1351                 return;
1352
1353         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1354                 return;
1355
1356         if (sdev->ordered_tags)
1357                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1358         else
1359                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1360
1361         ql_dbg(ql_dbg_io, vha, 0x302a,
1362             "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1363             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1364 }
1365
1366 static int
1367 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1368 {
1369         switch (reason) {
1370         case SCSI_QDEPTH_DEFAULT:
1371                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1372                 break;
1373         case SCSI_QDEPTH_QFULL:
1374                 qla2x00_handle_queue_full(sdev, qdepth);
1375                 break;
1376         case SCSI_QDEPTH_RAMP_UP:
1377                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1378                 break;
1379         default:
1380                 return -EOPNOTSUPP;
1381         }
1382
1383         return sdev->queue_depth;
1384 }
1385
1386 static int
1387 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1388 {
1389         if (sdev->tagged_supported) {
1390                 scsi_set_tag_type(sdev, tag_type);
1391                 if (tag_type)
1392                         scsi_activate_tcq(sdev, sdev->queue_depth);
1393                 else
1394                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1395         } else
1396                 tag_type = 0;
1397
1398         return tag_type;
1399 }
1400
1401 /**
1402  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1403  * @ha: HA context
1404  *
1405  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1406  * supported addressing method.
1407  */
1408 static void
1409 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1410 {
1411         /* Assume a 32bit DMA mask. */
1412         ha->flags.enable_64bit_addressing = 0;
1413
1414         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1415                 /* Any upper-dword bits set? */
1416                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1417                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1418                         /* Ok, a 64bit DMA mask is applicable. */
1419                         ha->flags.enable_64bit_addressing = 1;
1420                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1421                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1422                         return;
1423                 }
1424         }
1425
1426         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1427         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1428 }
1429
1430 static void
1431 qla2x00_enable_intrs(struct qla_hw_data *ha)
1432 {
1433         unsigned long flags = 0;
1434         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1435
1436         spin_lock_irqsave(&ha->hardware_lock, flags);
1437         ha->interrupts_on = 1;
1438         /* enable risc and host interrupts */
1439         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1440         RD_REG_WORD(&reg->ictrl);
1441         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1442
1443 }
1444
1445 static void
1446 qla2x00_disable_intrs(struct qla_hw_data *ha)
1447 {
1448         unsigned long flags = 0;
1449         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1450
1451         spin_lock_irqsave(&ha->hardware_lock, flags);
1452         ha->interrupts_on = 0;
1453         /* disable risc and host interrupts */
1454         WRT_REG_WORD(&reg->ictrl, 0);
1455         RD_REG_WORD(&reg->ictrl);
1456         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1457 }
1458
1459 static void
1460 qla24xx_enable_intrs(struct qla_hw_data *ha)
1461 {
1462         unsigned long flags = 0;
1463         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1464
1465         spin_lock_irqsave(&ha->hardware_lock, flags);
1466         ha->interrupts_on = 1;
1467         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1468         RD_REG_DWORD(&reg->ictrl);
1469         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1470 }
1471
1472 static void
1473 qla24xx_disable_intrs(struct qla_hw_data *ha)
1474 {
1475         unsigned long flags = 0;
1476         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1477
1478         if (IS_NOPOLLING_TYPE(ha))
1479                 return;
1480         spin_lock_irqsave(&ha->hardware_lock, flags);
1481         ha->interrupts_on = 0;
1482         WRT_REG_DWORD(&reg->ictrl, 0);
1483         RD_REG_DWORD(&reg->ictrl);
1484         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1485 }
1486
1487 static struct isp_operations qla2100_isp_ops = {
1488         .pci_config             = qla2100_pci_config,
1489         .reset_chip             = qla2x00_reset_chip,
1490         .chip_diag              = qla2x00_chip_diag,
1491         .config_rings           = qla2x00_config_rings,
1492         .reset_adapter          = qla2x00_reset_adapter,
1493         .nvram_config           = qla2x00_nvram_config,
1494         .update_fw_options      = qla2x00_update_fw_options,
1495         .load_risc              = qla2x00_load_risc,
1496         .pci_info_str           = qla2x00_pci_info_str,
1497         .fw_version_str         = qla2x00_fw_version_str,
1498         .intr_handler           = qla2100_intr_handler,
1499         .enable_intrs           = qla2x00_enable_intrs,
1500         .disable_intrs          = qla2x00_disable_intrs,
1501         .abort_command          = qla2x00_abort_command,
1502         .target_reset           = qla2x00_abort_target,
1503         .lun_reset              = qla2x00_lun_reset,
1504         .fabric_login           = qla2x00_login_fabric,
1505         .fabric_logout          = qla2x00_fabric_logout,
1506         .calc_req_entries       = qla2x00_calc_iocbs_32,
1507         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1508         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1509         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1510         .read_nvram             = qla2x00_read_nvram_data,
1511         .write_nvram            = qla2x00_write_nvram_data,
1512         .fw_dump                = qla2100_fw_dump,
1513         .beacon_on              = NULL,
1514         .beacon_off             = NULL,
1515         .beacon_blink           = NULL,
1516         .read_optrom            = qla2x00_read_optrom_data,
1517         .write_optrom           = qla2x00_write_optrom_data,
1518         .get_flash_version      = qla2x00_get_flash_version,
1519         .start_scsi             = qla2x00_start_scsi,
1520         .abort_isp              = qla2x00_abort_isp,
1521 };
1522
1523 static struct isp_operations qla2300_isp_ops = {
1524         .pci_config             = qla2300_pci_config,
1525         .reset_chip             = qla2x00_reset_chip,
1526         .chip_diag              = qla2x00_chip_diag,
1527         .config_rings           = qla2x00_config_rings,
1528         .reset_adapter          = qla2x00_reset_adapter,
1529         .nvram_config           = qla2x00_nvram_config,
1530         .update_fw_options      = qla2x00_update_fw_options,
1531         .load_risc              = qla2x00_load_risc,
1532         .pci_info_str           = qla2x00_pci_info_str,
1533         .fw_version_str         = qla2x00_fw_version_str,
1534         .intr_handler           = qla2300_intr_handler,
1535         .enable_intrs           = qla2x00_enable_intrs,
1536         .disable_intrs          = qla2x00_disable_intrs,
1537         .abort_command          = qla2x00_abort_command,
1538         .target_reset           = qla2x00_abort_target,
1539         .lun_reset              = qla2x00_lun_reset,
1540         .fabric_login           = qla2x00_login_fabric,
1541         .fabric_logout          = qla2x00_fabric_logout,
1542         .calc_req_entries       = qla2x00_calc_iocbs_32,
1543         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1544         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1545         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1546         .read_nvram             = qla2x00_read_nvram_data,
1547         .write_nvram            = qla2x00_write_nvram_data,
1548         .fw_dump                = qla2300_fw_dump,
1549         .beacon_on              = qla2x00_beacon_on,
1550         .beacon_off             = qla2x00_beacon_off,
1551         .beacon_blink           = qla2x00_beacon_blink,
1552         .read_optrom            = qla2x00_read_optrom_data,
1553         .write_optrom           = qla2x00_write_optrom_data,
1554         .get_flash_version      = qla2x00_get_flash_version,
1555         .start_scsi             = qla2x00_start_scsi,
1556         .abort_isp              = qla2x00_abort_isp,
1557 };
1558
1559 static struct isp_operations qla24xx_isp_ops = {
1560         .pci_config             = qla24xx_pci_config,
1561         .reset_chip             = qla24xx_reset_chip,
1562         .chip_diag              = qla24xx_chip_diag,
1563         .config_rings           = qla24xx_config_rings,
1564         .reset_adapter          = qla24xx_reset_adapter,
1565         .nvram_config           = qla24xx_nvram_config,
1566         .update_fw_options      = qla24xx_update_fw_options,
1567         .load_risc              = qla24xx_load_risc,
1568         .pci_info_str           = qla24xx_pci_info_str,
1569         .fw_version_str         = qla24xx_fw_version_str,
1570         .intr_handler           = qla24xx_intr_handler,
1571         .enable_intrs           = qla24xx_enable_intrs,
1572         .disable_intrs          = qla24xx_disable_intrs,
1573         .abort_command          = qla24xx_abort_command,
1574         .target_reset           = qla24xx_abort_target,
1575         .lun_reset              = qla24xx_lun_reset,
1576         .fabric_login           = qla24xx_login_fabric,
1577         .fabric_logout          = qla24xx_fabric_logout,
1578         .calc_req_entries       = NULL,
1579         .build_iocbs            = NULL,
1580         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1581         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1582         .read_nvram             = qla24xx_read_nvram_data,
1583         .write_nvram            = qla24xx_write_nvram_data,
1584         .fw_dump                = qla24xx_fw_dump,
1585         .beacon_on              = qla24xx_beacon_on,
1586         .beacon_off             = qla24xx_beacon_off,
1587         .beacon_blink           = qla24xx_beacon_blink,
1588         .read_optrom            = qla24xx_read_optrom_data,
1589         .write_optrom           = qla24xx_write_optrom_data,
1590         .get_flash_version      = qla24xx_get_flash_version,
1591         .start_scsi             = qla24xx_start_scsi,
1592         .abort_isp              = qla2x00_abort_isp,
1593 };
1594
1595 static struct isp_operations qla25xx_isp_ops = {
1596         .pci_config             = qla25xx_pci_config,
1597         .reset_chip             = qla24xx_reset_chip,
1598         .chip_diag              = qla24xx_chip_diag,
1599         .config_rings           = qla24xx_config_rings,
1600         .reset_adapter          = qla24xx_reset_adapter,
1601         .nvram_config           = qla24xx_nvram_config,
1602         .update_fw_options      = qla24xx_update_fw_options,
1603         .load_risc              = qla24xx_load_risc,
1604         .pci_info_str           = qla24xx_pci_info_str,
1605         .fw_version_str         = qla24xx_fw_version_str,
1606         .intr_handler           = qla24xx_intr_handler,
1607         .enable_intrs           = qla24xx_enable_intrs,
1608         .disable_intrs          = qla24xx_disable_intrs,
1609         .abort_command          = qla24xx_abort_command,
1610         .target_reset           = qla24xx_abort_target,
1611         .lun_reset              = qla24xx_lun_reset,
1612         .fabric_login           = qla24xx_login_fabric,
1613         .fabric_logout          = qla24xx_fabric_logout,
1614         .calc_req_entries       = NULL,
1615         .build_iocbs            = NULL,
1616         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1617         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1618         .read_nvram             = qla25xx_read_nvram_data,
1619         .write_nvram            = qla25xx_write_nvram_data,
1620         .fw_dump                = qla25xx_fw_dump,
1621         .beacon_on              = qla24xx_beacon_on,
1622         .beacon_off             = qla24xx_beacon_off,
1623         .beacon_blink           = qla24xx_beacon_blink,
1624         .read_optrom            = qla25xx_read_optrom_data,
1625         .write_optrom           = qla24xx_write_optrom_data,
1626         .get_flash_version      = qla24xx_get_flash_version,
1627         .start_scsi             = qla24xx_dif_start_scsi,
1628         .abort_isp              = qla2x00_abort_isp,
1629 };
1630
1631 static struct isp_operations qla81xx_isp_ops = {
1632         .pci_config             = qla25xx_pci_config,
1633         .reset_chip             = qla24xx_reset_chip,
1634         .chip_diag              = qla24xx_chip_diag,
1635         .config_rings           = qla24xx_config_rings,
1636         .reset_adapter          = qla24xx_reset_adapter,
1637         .nvram_config           = qla81xx_nvram_config,
1638         .update_fw_options      = qla81xx_update_fw_options,
1639         .load_risc              = qla81xx_load_risc,
1640         .pci_info_str           = qla24xx_pci_info_str,
1641         .fw_version_str         = qla24xx_fw_version_str,
1642         .intr_handler           = qla24xx_intr_handler,
1643         .enable_intrs           = qla24xx_enable_intrs,
1644         .disable_intrs          = qla24xx_disable_intrs,
1645         .abort_command          = qla24xx_abort_command,
1646         .target_reset           = qla24xx_abort_target,
1647         .lun_reset              = qla24xx_lun_reset,
1648         .fabric_login           = qla24xx_login_fabric,
1649         .fabric_logout          = qla24xx_fabric_logout,
1650         .calc_req_entries       = NULL,
1651         .build_iocbs            = NULL,
1652         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1653         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1654         .read_nvram             = NULL,
1655         .write_nvram            = NULL,
1656         .fw_dump                = qla81xx_fw_dump,
1657         .beacon_on              = qla24xx_beacon_on,
1658         .beacon_off             = qla24xx_beacon_off,
1659         .beacon_blink           = qla24xx_beacon_blink,
1660         .read_optrom            = qla25xx_read_optrom_data,
1661         .write_optrom           = qla24xx_write_optrom_data,
1662         .get_flash_version      = qla24xx_get_flash_version,
1663         .start_scsi             = qla24xx_dif_start_scsi,
1664         .abort_isp              = qla2x00_abort_isp,
1665 };
1666
1667 static struct isp_operations qla82xx_isp_ops = {
1668         .pci_config             = qla82xx_pci_config,
1669         .reset_chip             = qla82xx_reset_chip,
1670         .chip_diag              = qla24xx_chip_diag,
1671         .config_rings           = qla82xx_config_rings,
1672         .reset_adapter          = qla24xx_reset_adapter,
1673         .nvram_config           = qla81xx_nvram_config,
1674         .update_fw_options      = qla24xx_update_fw_options,
1675         .load_risc              = qla82xx_load_risc,
1676         .pci_info_str           = qla82xx_pci_info_str,
1677         .fw_version_str         = qla24xx_fw_version_str,
1678         .intr_handler           = qla82xx_intr_handler,
1679         .enable_intrs           = qla82xx_enable_intrs,
1680         .disable_intrs          = qla82xx_disable_intrs,
1681         .abort_command          = qla24xx_abort_command,
1682         .target_reset           = qla24xx_abort_target,
1683         .lun_reset              = qla24xx_lun_reset,
1684         .fabric_login           = qla24xx_login_fabric,
1685         .fabric_logout          = qla24xx_fabric_logout,
1686         .calc_req_entries       = NULL,
1687         .build_iocbs            = NULL,
1688         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1689         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1690         .read_nvram             = qla24xx_read_nvram_data,
1691         .write_nvram            = qla24xx_write_nvram_data,
1692         .fw_dump                = qla24xx_fw_dump,
1693         .beacon_on              = qla82xx_beacon_on,
1694         .beacon_off             = qla82xx_beacon_off,
1695         .beacon_blink           = NULL,
1696         .read_optrom            = qla82xx_read_optrom_data,
1697         .write_optrom           = qla82xx_write_optrom_data,
1698         .get_flash_version      = qla24xx_get_flash_version,
1699         .start_scsi             = qla82xx_start_scsi,
1700         .abort_isp              = qla82xx_abort_isp,
1701 };
1702
1703 static inline void
1704 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1705 {
1706         ha->device_type = DT_EXTENDED_IDS;
1707         switch (ha->pdev->device) {
1708         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1709                 ha->device_type |= DT_ISP2100;
1710                 ha->device_type &= ~DT_EXTENDED_IDS;
1711                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1712                 break;
1713         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1714                 ha->device_type |= DT_ISP2200;
1715                 ha->device_type &= ~DT_EXTENDED_IDS;
1716                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1717                 break;
1718         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1719                 ha->device_type |= DT_ISP2300;
1720                 ha->device_type |= DT_ZIO_SUPPORTED;
1721                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1722                 break;
1723         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1724                 ha->device_type |= DT_ISP2312;
1725                 ha->device_type |= DT_ZIO_SUPPORTED;
1726                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1727                 break;
1728         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1729                 ha->device_type |= DT_ISP2322;
1730                 ha->device_type |= DT_ZIO_SUPPORTED;
1731                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1732                     ha->pdev->subsystem_device == 0x0170)
1733                         ha->device_type |= DT_OEM_001;
1734                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1735                 break;
1736         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1737                 ha->device_type |= DT_ISP6312;
1738                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1739                 break;
1740         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1741                 ha->device_type |= DT_ISP6322;
1742                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1743                 break;
1744         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1745                 ha->device_type |= DT_ISP2422;
1746                 ha->device_type |= DT_ZIO_SUPPORTED;
1747                 ha->device_type |= DT_FWI2;
1748                 ha->device_type |= DT_IIDMA;
1749                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1750                 break;
1751         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1752                 ha->device_type |= DT_ISP2432;
1753                 ha->device_type |= DT_ZIO_SUPPORTED;
1754                 ha->device_type |= DT_FWI2;
1755                 ha->device_type |= DT_IIDMA;
1756                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1757                 break;
1758         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1759                 ha->device_type |= DT_ISP8432;
1760                 ha->device_type |= DT_ZIO_SUPPORTED;
1761                 ha->device_type |= DT_FWI2;
1762                 ha->device_type |= DT_IIDMA;
1763                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1764                 break;
1765         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1766                 ha->device_type |= DT_ISP5422;
1767                 ha->device_type |= DT_FWI2;
1768                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1769                 break;
1770         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1771                 ha->device_type |= DT_ISP5432;
1772                 ha->device_type |= DT_FWI2;
1773                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1774                 break;
1775         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1776                 ha->device_type |= DT_ISP2532;
1777                 ha->device_type |= DT_ZIO_SUPPORTED;
1778                 ha->device_type |= DT_FWI2;
1779                 ha->device_type |= DT_IIDMA;
1780                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1781                 break;
1782         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1783                 ha->device_type |= DT_ISP8001;
1784                 ha->device_type |= DT_ZIO_SUPPORTED;
1785                 ha->device_type |= DT_FWI2;
1786                 ha->device_type |= DT_IIDMA;
1787                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1788                 break;
1789         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1790                 ha->device_type |= DT_ISP8021;
1791                 ha->device_type |= DT_ZIO_SUPPORTED;
1792                 ha->device_type |= DT_FWI2;
1793                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1794                 /* Initialize 82XX ISP flags */
1795                 qla82xx_init_flags(ha);
1796                 break;
1797         }
1798
1799         if (IS_QLA82XX(ha))
1800                 ha->port_no = !(ha->portnum & 1);
1801         else
1802                 /* Get adapter physical port no from interrupt pin register. */
1803                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1804
1805         if (ha->port_no & 1)
1806                 ha->flags.port0 = 1;
1807         else
1808                 ha->flags.port0 = 0;
1809         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
1810             "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
1811             ha->device_type, ha->flags.port0, ha->fw_srisc_address);
1812 }
1813
1814 static int
1815 qla2x00_iospace_config(struct qla_hw_data *ha)
1816 {
1817         resource_size_t pio;
1818         uint16_t msix;
1819         int cpus;
1820
1821         if (IS_QLA82XX(ha))
1822                 return qla82xx_iospace_config(ha);
1823
1824         if (pci_request_selected_regions(ha->pdev, ha->bars,
1825             QLA2XXX_DRIVER_NAME)) {
1826                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1827                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1828                     pci_name(ha->pdev));
1829                 goto iospace_error_exit;
1830         }
1831         if (!(ha->bars & 1))
1832                 goto skip_pio;
1833
1834         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1835         pio = pci_resource_start(ha->pdev, 0);
1836         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1837                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1838                         ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1839                             "Invalid pci I/O region size (%s).\n",
1840                             pci_name(ha->pdev));
1841                         pio = 0;
1842                 }
1843         } else {
1844                 ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1845                     "Region #0 no a PIO resource (%s).\n",
1846                     pci_name(ha->pdev));
1847                 pio = 0;
1848         }
1849         ha->pio_address = pio;
1850         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1851             "PIO address=%llu.\n",
1852             (unsigned long long)ha->pio_address);
1853
1854 skip_pio:
1855         /* Use MMIO operations for all accesses. */
1856         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1857                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1858                     "Region #1 not an MMIO resource (%s), aborting.\n",
1859                     pci_name(ha->pdev));
1860                 goto iospace_error_exit;
1861         }
1862         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1863                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1864                     "Invalid PCI mem region size (%s), aborting.\n",
1865                     pci_name(ha->pdev));
1866                 goto iospace_error_exit;
1867         }
1868
1869         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1870         if (!ha->iobase) {
1871                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1872                     "Cannot remap MMIO (%s), aborting.\n",
1873                     pci_name(ha->pdev));
1874                 goto iospace_error_exit;
1875         }
1876
1877         /* Determine queue resources */
1878         ha->max_req_queues = ha->max_rsp_queues = 1;
1879         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1880                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1881                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1882                 goto mqiobase_exit;
1883
1884         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1885                         pci_resource_len(ha->pdev, 3));
1886         if (ha->mqiobase) {
1887                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1888                     "MQIO Base=%p.\n", ha->mqiobase);
1889                 /* Read MSIX vector size of the board */
1890                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1891                 ha->msix_count = msix;
1892                 /* Max queues are bounded by available msix vectors */
1893                 /* queue 0 uses two msix vectors */
1894                 if (ql2xmultique_tag) {
1895                         cpus = num_online_cpus();
1896                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1897                                 (cpus + 1) : (ha->msix_count - 1);
1898                         ha->max_req_queues = 2;
1899                 } else if (ql2xmaxqueues > 1) {
1900                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1901                             QLA_MQ_SIZE : ql2xmaxqueues;
1902                         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1903                             "QoS mode set, max no of request queues:%d.\n",
1904                             ha->max_req_queues);
1905                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1906                             "QoS mode set, max no of request queues:%d.\n",
1907                             ha->max_req_queues);
1908                 }
1909                 ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1910                     "MSI-X vector count: %d.\n", msix);
1911         } else
1912                 ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1913                     "BAR 3 not enabled.\n");
1914
1915 mqiobase_exit:
1916         ha->msix_count = ha->max_rsp_queues + 1;
1917         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1918             "MSIX Count:%d.\n", ha->msix_count);
1919         return (0);
1920
1921 iospace_error_exit:
1922         return (-ENOMEM);
1923 }
1924
1925 static void
1926 qla2xxx_scan_start(struct Scsi_Host *shost)
1927 {
1928         scsi_qla_host_t *vha = shost_priv(shost);
1929
1930         if (vha->hw->flags.running_gold_fw)
1931                 return;
1932
1933         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1934         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1935         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1936         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1937 }
1938
1939 static int
1940 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1941 {
1942         scsi_qla_host_t *vha = shost_priv(shost);
1943
1944         if (!vha->host)
1945                 return 1;
1946         if (time > vha->hw->loop_reset_delay * HZ)
1947                 return 1;
1948
1949         return atomic_read(&vha->loop_state) == LOOP_READY;
1950 }
1951
1952 /*
1953  * PCI driver interface
1954  */
1955 static int __devinit
1956 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1957 {
1958         int     ret = -ENODEV;
1959         struct Scsi_Host *host;
1960         scsi_qla_host_t *base_vha = NULL;
1961         struct qla_hw_data *ha;
1962         char pci_info[30];
1963         char fw_str[30];
1964         struct scsi_host_template *sht;
1965         int bars, max_id, mem_only = 0;
1966         uint16_t req_length = 0, rsp_length = 0;
1967         struct req_que *req = NULL;
1968         struct rsp_que *rsp = NULL;
1969
1970         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1971         sht = &qla2xxx_driver_template;
1972         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1973             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1974             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1975             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1976             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1977             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1978             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1979             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1980                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1981                 mem_only = 1;
1982                 ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
1983                     "Mem only adapter.\n");
1984         }
1985         ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
1986             "Bars=%d.\n", bars);
1987
1988         if (mem_only) {
1989                 if (pci_enable_device_mem(pdev))
1990                         goto probe_out;
1991         } else {
1992                 if (pci_enable_device(pdev))
1993                         goto probe_out;
1994         }
1995
1996         /* This may fail but that's ok */
1997         pci_enable_pcie_error_reporting(pdev);
1998
1999         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2000         if (!ha) {
2001                 ql_log_pci(ql_log_fatal, pdev, 0x0009,
2002                     "Unable to allocate memory for ha.\n");
2003                 goto probe_out;
2004         }
2005         ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2006             "Memory allocated for ha=%p.\n", ha);
2007         ha->pdev = pdev;
2008
2009         /* Clear our data area */
2010         ha->bars = bars;
2011         ha->mem_only = mem_only;
2012         spin_lock_init(&ha->hardware_lock);
2013         spin_lock_init(&ha->vport_slock);
2014
2015         /* Set ISP-type information. */
2016         qla2x00_set_isp_flags(ha);
2017
2018         /* Set EEH reset type to fundamental if required by hba */
2019         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
2020                 pdev->needs_freset = 1;
2021         }
2022
2023         /* Configure PCI I/O space */
2024         ret = qla2x00_iospace_config(ha);
2025         if (ret)
2026                 goto probe_hw_failed;
2027
2028         ql_log_pci(ql_log_info, pdev, 0x001d,
2029             "Found an ISP%04X irq %d iobase 0x%p.\n",
2030             pdev->device, pdev->irq, ha->iobase);
2031         ha->prev_topology = 0;
2032         ha->init_cb_size = sizeof(init_cb_t);
2033         ha->link_data_rate = PORT_SPEED_UNKNOWN;
2034         ha->optrom_size = OPTROM_SIZE_2300;
2035
2036         /* Assign ISP specific operations. */
2037         max_id = MAX_TARGETS_2200;
2038         if (IS_QLA2100(ha)) {
2039                 max_id = MAX_TARGETS_2100;
2040                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2041                 req_length = REQUEST_ENTRY_CNT_2100;
2042                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2043                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2044                 ha->gid_list_info_size = 4;
2045                 ha->flash_conf_off = ~0;
2046                 ha->flash_data_off = ~0;
2047                 ha->nvram_conf_off = ~0;
2048                 ha->nvram_data_off = ~0;
2049                 ha->isp_ops = &qla2100_isp_ops;
2050         } else if (IS_QLA2200(ha)) {
2051                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2052                 req_length = REQUEST_ENTRY_CNT_2200;
2053                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2054                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2055                 ha->gid_list_info_size = 4;
2056                 ha->flash_conf_off = ~0;
2057                 ha->flash_data_off = ~0;
2058                 ha->nvram_conf_off = ~0;
2059                 ha->nvram_data_off = ~0;
2060                 ha->isp_ops = &qla2100_isp_ops;
2061         } else if (IS_QLA23XX(ha)) {
2062                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2063                 req_length = REQUEST_ENTRY_CNT_2200;
2064                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2065                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2066                 ha->gid_list_info_size = 6;
2067                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2068                         ha->optrom_size = OPTROM_SIZE_2322;
2069                 ha->flash_conf_off = ~0;
2070                 ha->flash_data_off = ~0;
2071                 ha->nvram_conf_off = ~0;
2072                 ha->nvram_data_off = ~0;
2073                 ha->isp_ops = &qla2300_isp_ops;
2074         } else if (IS_QLA24XX_TYPE(ha)) {
2075                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2076                 req_length = REQUEST_ENTRY_CNT_24XX;
2077                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2078                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2079                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2080                 ha->gid_list_info_size = 8;
2081                 ha->optrom_size = OPTROM_SIZE_24XX;
2082                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2083                 ha->isp_ops = &qla24xx_isp_ops;
2084                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2085                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2086                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2087                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2088         } else if (IS_QLA25XX(ha)) {
2089                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2090                 req_length = REQUEST_ENTRY_CNT_24XX;
2091                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2092                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2093                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2094                 ha->gid_list_info_size = 8;
2095                 ha->optrom_size = OPTROM_SIZE_25XX;
2096                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2097                 ha->isp_ops = &qla25xx_isp_ops;
2098                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2099                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2100                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2101                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2102         } else if (IS_QLA81XX(ha)) {
2103                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2104                 req_length = REQUEST_ENTRY_CNT_24XX;
2105                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2106                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2107                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2108                 ha->gid_list_info_size = 8;
2109                 ha->optrom_size = OPTROM_SIZE_81XX;
2110                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2111                 ha->isp_ops = &qla81xx_isp_ops;
2112                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2113                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2114                 ha->nvram_conf_off = ~0;
2115                 ha->nvram_data_off = ~0;
2116         } else if (IS_QLA82XX(ha)) {
2117                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2118                 req_length = REQUEST_ENTRY_CNT_82XX;
2119                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2120                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2121                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2122                 ha->gid_list_info_size = 8;
2123                 ha->optrom_size = OPTROM_SIZE_82XX;
2124                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2125                 ha->isp_ops = &qla82xx_isp_ops;
2126                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2127                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2128                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2129                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2130         }
2131         ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2132             "mbx_count=%d, req_length=%d, "
2133             "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2134             "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, .\n",
2135             ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2136             ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2137             ha->nvram_npiv_size);
2138         ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2139             "isp_ops=%p, flash_conf_off=%d, "
2140             "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2141             ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2142             ha->nvram_conf_off, ha->nvram_data_off);
2143         mutex_init(&ha->vport_lock);
2144         init_completion(&ha->mbx_cmd_comp);
2145         complete(&ha->mbx_cmd_comp);
2146         init_completion(&ha->mbx_intr_comp);
2147         init_completion(&ha->dcbx_comp);
2148
2149         set_bit(0, (unsigned long *) ha->vp_idx_map);
2150
2151         qla2x00_config_dma_addressing(ha);
2152         ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2153             "64 Bit addressing is %s.\n",
2154             ha->flags.enable_64bit_addressing ? "enable" :
2155             "disable");
2156         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2157         if (!ret) {
2158                 ql_log_pci(ql_log_fatal, pdev, 0x0031,
2159                     "Failed to allocate memory for adapter, aborting.\n");
2160
2161                 goto probe_hw_failed;
2162         }
2163
2164         req->max_q_depth = MAX_Q_DEPTH;
2165         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2166                 req->max_q_depth = ql2xmaxqdepth;
2167
2168
2169         base_vha = qla2x00_create_host(sht, ha);
2170         if (!base_vha) {
2171                 ret = -ENOMEM;
2172                 qla2x00_mem_free(ha);
2173                 qla2x00_free_req_que(ha, req);
2174                 qla2x00_free_rsp_que(ha, rsp);
2175                 goto probe_hw_failed;
2176         }
2177
2178         pci_set_drvdata(pdev, base_vha);
2179
2180         host = base_vha->host;
2181         base_vha->req = req;
2182         host->can_queue = req->length + 128;
2183         if (IS_QLA2XXX_MIDTYPE(ha))
2184                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2185         else
2186                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2187                                                 base_vha->vp_idx;
2188
2189         /* Set the SG table size based on ISP type */
2190         if (!IS_FWI2_CAPABLE(ha)) {
2191                 if (IS_QLA2100(ha))
2192                         host->sg_tablesize = 32;
2193         } else {
2194                 if (!IS_QLA82XX(ha))
2195                         host->sg_tablesize = QLA_SG_ALL;
2196         }
2197         ql_dbg(ql_dbg_init, base_vha, 0x0032,
2198             "can_queue=%d, req=%p, "
2199             "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2200             host->can_queue, base_vha->req,
2201             base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2202         host->max_id = max_id;
2203         host->this_id = 255;
2204         host->cmd_per_lun = 3;
2205         host->unique_id = host->host_no;
2206         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2207                 host->max_cmd_len = 32;
2208         else
2209                 host->max_cmd_len = MAX_CMDSZ;
2210         host->max_channel = MAX_BUSES - 1;
2211         host->max_lun = ql2xmaxlun;
2212         host->transportt = qla2xxx_transport_template;
2213         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2214
2215         ql_dbg(ql_dbg_init, base_vha, 0x0033,
2216             "max_id=%d this_id=%d "
2217             "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2218             "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2219             host->this_id, host->cmd_per_lun, host->unique_id,
2220             host->max_cmd_len, host->max_channel, host->max_lun,
2221             host->transportt, sht->vendor_id);
2222
2223         /* Set up the irqs */
2224         ret = qla2x00_request_irqs(ha, rsp);
2225         if (ret)
2226                 goto probe_init_failed;
2227
2228         pci_save_state(pdev);
2229
2230         /* Alloc arrays of request and response ring ptrs */
2231 que_init:
2232         if (!qla2x00_alloc_queues(ha)) {
2233                 ql_log(ql_log_fatal, base_vha, 0x003d,
2234                     "Failed to allocate memory for queue pointers.. aborting.\n");
2235                 goto probe_init_failed;
2236         }
2237
2238         ha->rsp_q_map[0] = rsp;
2239         ha->req_q_map[0] = req;
2240         rsp->req = req;
2241         req->rsp = rsp;
2242         set_bit(0, ha->req_qid_map);
2243         set_bit(0, ha->rsp_qid_map);
2244         /* FWI2-capable only. */
2245         req->req_q_in = &ha->iobase->isp24.req_q_in;
2246         req->req_q_out = &ha->iobase->isp24.req_q_out;
2247         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2248         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2249         if (ha->mqenable) {
2250                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2251                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2252                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2253                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2254         }
2255
2256         if (IS_QLA82XX(ha)) {
2257                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2258                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2259                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2260         }
2261
2262         ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2263             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2264             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2265         ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2266             "req->req_q_in=%p req->req_q_out=%p "
2267             "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2268             req->req_q_in, req->req_q_out,
2269             rsp->rsp_q_in, rsp->rsp_q_out);
2270         ql_dbg(ql_dbg_init, base_vha, 0x003e,
2271             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2272             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2273         ql_dbg(ql_dbg_init, base_vha, 0x003f,
2274             "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2275             req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2276
2277         if (qla2x00_initialize_adapter(base_vha)) {
2278                 ql_log(ql_log_fatal, base_vha, 0x00d6,
2279                     "Failed to initialize adapter - Adapter flags %x.\n",
2280                     base_vha->device_flags);
2281
2282                 if (IS_QLA82XX(ha)) {
2283                         qla82xx_idc_lock(ha);
2284                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2285                                 QLA82XX_DEV_FAILED);
2286                         qla82xx_idc_unlock(ha);
2287                         ql_log(ql_log_fatal, base_vha, 0x00d7,
2288                             "HW State: FAILED.\n");
2289                 }
2290
2291                 ret = -ENODEV;
2292                 goto probe_failed;
2293         }
2294
2295         if (ha->mqenable) {
2296                 if (qla25xx_setup_mode(base_vha)) {
2297                         ql_log(ql_log_warn, base_vha, 0x00ec,
2298                             "Failed to create queues, falling back to single queue mode.\n");
2299                         goto que_init;
2300                 }
2301         }
2302
2303         if (ha->flags.running_gold_fw)
2304                 goto skip_dpc;
2305
2306         /*
2307          * Startup the kernel thread for this host adapter
2308          */
2309         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2310             "%s_dpc", base_vha->host_str);
2311         if (IS_ERR(ha->dpc_thread)) {
2312                 ql_log(ql_log_fatal, base_vha, 0x00ed,
2313                     "Failed to start DPC thread.\n");
2314                 ret = PTR_ERR(ha->dpc_thread);
2315                 goto probe_failed;
2316         }
2317         ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2318             "DPC thread started successfully.\n");
2319
2320 skip_dpc:
2321         list_add_tail(&base_vha->list, &ha->vp_list);
2322         base_vha->host->irq = ha->pdev->irq;
2323
2324         /* Initialized the timer */
2325         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2326         ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2327             "Started qla2x00_timer with "
2328             "interval=%d.\n", WATCH_INTERVAL);
2329         ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2330             "Detected hba at address=%p.\n",
2331             ha);
2332
2333         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2334                 if (ha->fw_attributes & BIT_4) {
2335                         int prot = 0;
2336                         base_vha->flags.difdix_supported = 1;
2337                         ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2338                             "Registering for DIF/DIX type 1 and 3 protection.\n");
2339                         if (ql2xenabledif == 1)
2340                                 prot = SHOST_DIX_TYPE0_PROTECTION;
2341                         scsi_host_set_prot(host,
2342                             prot | SHOST_DIF_TYPE1_PROTECTION
2343                             | SHOST_DIF_TYPE2_PROTECTION
2344                             | SHOST_DIF_TYPE3_PROTECTION
2345                             | SHOST_DIX_TYPE1_PROTECTION
2346                             | SHOST_DIX_TYPE2_PROTECTION
2347                             | SHOST_DIX_TYPE3_PROTECTION);
2348                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2349                 } else
2350                         base_vha->flags.difdix_supported = 0;
2351         }
2352
2353         ha->isp_ops->enable_intrs(ha);
2354
2355         ret = scsi_add_host(host, &pdev->dev);
2356         if (ret)
2357                 goto probe_failed;
2358
2359         base_vha->flags.init_done = 1;
2360         base_vha->flags.online = 1;
2361
2362         ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2363             "Init done and hba is online.\n");
2364
2365         scsi_scan_host(host);
2366
2367         qla2x00_alloc_sysfs_attr(base_vha);
2368
2369         qla2x00_init_host_attr(base_vha);
2370
2371         qla2x00_dfs_setup(base_vha);
2372
2373         ql_log(ql_log_info, base_vha, 0x00fb,
2374             "QLogic %s - %s.\n",
2375             ha->model_number, ha->model_desc ? ha->model_desc : "");
2376         ql_log(ql_log_info, base_vha, 0x00fc,
2377             "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2378             pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2379             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2380             base_vha->host_no,
2381             ha->isp_ops->fw_version_str(base_vha, fw_str));
2382
2383         return 0;
2384
2385 probe_init_failed:
2386         qla2x00_free_req_que(ha, req);
2387         qla2x00_free_rsp_que(ha, rsp);
2388         ha->max_req_queues = ha->max_rsp_queues = 0;
2389
2390 probe_failed:
2391         if (base_vha->timer_active)
2392                 qla2x00_stop_timer(base_vha);
2393         base_vha->flags.online = 0;
2394         if (ha->dpc_thread) {
2395                 struct task_struct *t = ha->dpc_thread;
2396
2397                 ha->dpc_thread = NULL;
2398                 kthread_stop(t);
2399         }
2400
2401         qla2x00_free_device(base_vha);
2402
2403         scsi_host_put(base_vha->host);
2404
2405 probe_hw_failed:
2406         if (IS_QLA82XX(ha)) {
2407                 qla82xx_idc_lock(ha);
2408                 qla82xx_clear_drv_active(ha);
2409                 qla82xx_idc_unlock(ha);
2410                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2411                 if (!ql2xdbwr)
2412                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2413         } else {
2414                 if (ha->iobase)
2415                         iounmap(ha->iobase);
2416         }
2417         pci_release_selected_regions(ha->pdev, ha->bars);
2418         kfree(ha);
2419         ha = NULL;
2420
2421 probe_out:
2422         pci_disable_device(pdev);
2423         return ret;
2424 }
2425
2426 static void
2427 qla2x00_shutdown(struct pci_dev *pdev)
2428 {
2429         scsi_qla_host_t *vha;
2430         struct qla_hw_data  *ha;
2431
2432         vha = pci_get_drvdata(pdev);
2433         ha = vha->hw;
2434
2435         /* Turn-off FCE trace */
2436         if (ha->flags.fce_enabled) {
2437                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2438                 ha->flags.fce_enabled = 0;
2439         }
2440
2441         /* Turn-off EFT trace */
2442         if (ha->eft)
2443                 qla2x00_disable_eft_trace(vha);
2444
2445         /* Stop currently executing firmware. */
2446         qla2x00_try_to_stop_firmware(vha);
2447
2448         /* Turn adapter off line */
2449         vha->flags.online = 0;
2450
2451         /* turn-off interrupts on the card */
2452         if (ha->interrupts_on) {
2453                 vha->flags.init_done = 0;
2454                 ha->isp_ops->disable_intrs(ha);
2455         }
2456
2457         qla2x00_free_irqs(vha);
2458
2459         qla2x00_free_fw_dump(ha);
2460 }
2461
2462 static void
2463 qla2x00_remove_one(struct pci_dev *pdev)
2464 {
2465         scsi_qla_host_t *base_vha, *vha;
2466         struct qla_hw_data  *ha;
2467         unsigned long flags;
2468
2469         base_vha = pci_get_drvdata(pdev);
2470         ha = base_vha->hw;
2471
2472         mutex_lock(&ha->vport_lock);
2473         while (ha->cur_vport_count) {
2474                 struct Scsi_Host *scsi_host;
2475
2476                 spin_lock_irqsave(&ha->vport_slock, flags);
2477
2478                 BUG_ON(base_vha->list.next == &ha->vp_list);
2479                 /* This assumes first entry in ha->vp_list is always base vha */
2480                 vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2481                 scsi_host = scsi_host_get(vha->host);
2482
2483                 spin_unlock_irqrestore(&ha->vport_slock, flags);
2484                 mutex_unlock(&ha->vport_lock);
2485
2486                 fc_vport_terminate(vha->fc_vport);
2487                 scsi_host_put(vha->host);
2488
2489                 mutex_lock(&ha->vport_lock);
2490         }
2491         mutex_unlock(&ha->vport_lock);
2492
2493         set_bit(UNLOADING, &base_vha->dpc_flags);
2494
2495         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2496
2497         qla2x00_dfs_remove(base_vha);
2498
2499         qla84xx_put_chip(base_vha);
2500
2501         /* Disable timer */
2502         if (base_vha->timer_active)
2503                 qla2x00_stop_timer(base_vha);
2504
2505         base_vha->flags.online = 0;
2506
2507         /* Flush the work queue and remove it */
2508         if (ha->wq) {
2509                 flush_workqueue(ha->wq);
2510                 destroy_workqueue(ha->wq);
2511                 ha->wq = NULL;
2512         }
2513
2514         /* Kill the kernel thread for this host */
2515         if (ha->dpc_thread) {
2516                 struct task_struct *t = ha->dpc_thread;
2517
2518                 /*
2519                  * qla2xxx_wake_dpc checks for ->dpc_thread
2520                  * so we need to zero it out.
2521                  */
2522                 ha->dpc_thread = NULL;
2523                 kthread_stop(t);
2524         }
2525
2526         qla2x00_free_sysfs_attr(base_vha);
2527
2528         fc_remove_host(base_vha->host);
2529
2530         scsi_remove_host(base_vha->host);
2531
2532         qla2x00_free_device(base_vha);
2533
2534         scsi_host_put(base_vha->host);
2535
2536         if (IS_QLA82XX(ha)) {
2537                 qla82xx_idc_lock(ha);
2538                 qla82xx_clear_drv_active(ha);
2539                 qla82xx_idc_unlock(ha);
2540
2541                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2542                 if (!ql2xdbwr)
2543                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2544         } else {
2545                 if (ha->iobase)
2546                         iounmap(ha->iobase);
2547
2548                 if (ha->mqiobase)
2549                         iounmap(ha->mqiobase);
2550         }
2551
2552         pci_release_selected_regions(ha->pdev, ha->bars);
2553         kfree(ha);
2554         ha = NULL;
2555
2556         pci_disable_pcie_error_reporting(pdev);
2557
2558         pci_disable_device(pdev);
2559         pci_set_drvdata(pdev, NULL);
2560 }
2561
2562 static void
2563 qla2x00_free_device(scsi_qla_host_t *vha)
2564 {
2565         struct qla_hw_data *ha = vha->hw;
2566
2567         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2568
2569         /* Disable timer */
2570         if (vha->timer_active)
2571                 qla2x00_stop_timer(vha);
2572
2573         /* Kill the kernel thread for this host */
2574         if (ha->dpc_thread) {
2575                 struct task_struct *t = ha->dpc_thread;
2576
2577                 /*
2578                  * qla2xxx_wake_dpc checks for ->dpc_thread
2579                  * so we need to zero it out.
2580                  */
2581                 ha->dpc_thread = NULL;
2582                 kthread_stop(t);
2583         }
2584
2585         qla25xx_delete_queues(vha);
2586
2587         if (ha->flags.fce_enabled)
2588                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2589
2590         if (ha->eft)
2591                 qla2x00_disable_eft_trace(vha);
2592
2593         /* Stop currently executing firmware. */
2594         qla2x00_try_to_stop_firmware(vha);
2595
2596         vha->flags.online = 0;
2597
2598         /* turn-off interrupts on the card */
2599         if (ha->interrupts_on) {
2600                 vha->flags.init_done = 0;
2601                 ha->isp_ops->disable_intrs(ha);
2602         }
2603
2604         qla2x00_free_irqs(vha);
2605
2606         qla2x00_free_fcports(vha);
2607
2608         qla2x00_mem_free(ha);
2609
2610         qla82xx_md_free(vha);
2611
2612         qla2x00_free_queues(ha);
2613 }
2614
2615 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2616 {
2617         fc_port_t *fcport, *tfcport;
2618
2619         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2620                 list_del(&fcport->list);
2621                 kfree(fcport);
2622                 fcport = NULL;
2623         }
2624 }
2625
2626 static inline void
2627 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2628     int defer)
2629 {
2630         struct fc_rport *rport;
2631         scsi_qla_host_t *base_vha;
2632         unsigned long flags;
2633
2634         if (!fcport->rport)
2635                 return;
2636
2637         rport = fcport->rport;
2638         if (defer) {
2639                 base_vha = pci_get_drvdata(vha->hw->pdev);
2640                 spin_lock_irqsave(vha->host->host_lock, flags);
2641                 fcport->drport = rport;
2642                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2643                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2644                 qla2xxx_wake_dpc(base_vha);
2645         } else
2646                 fc_remote_port_delete(rport);
2647 }
2648
2649 /*
2650  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2651  *
2652  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2653  *
2654  * Return: None.
2655  *
2656  * Context:
2657  */
2658 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2659     int do_login, int defer)
2660 {
2661         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2662             vha->vp_idx == fcport->vp_idx) {
2663                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2664                 qla2x00_schedule_rport_del(vha, fcport, defer);
2665         }
2666         /*
2667          * We may need to retry the login, so don't change the state of the
2668          * port but do the retries.
2669          */
2670         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2671                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2672
2673         if (!do_login)
2674                 return;
2675
2676         if (fcport->login_retry == 0) {
2677                 fcport->login_retry = vha->hw->login_retry_count;
2678                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2679
2680                 ql_dbg(ql_dbg_disc, vha, 0x2067,
2681                     "Port login retry "
2682                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2683                     "id = 0x%04x retry cnt=%d.\n",
2684                     fcport->port_name[0], fcport->port_name[1],
2685                     fcport->port_name[2], fcport->port_name[3],
2686                     fcport->port_name[4], fcport->port_name[5],
2687                     fcport->port_name[6], fcport->port_name[7],
2688                     fcport->loop_id, fcport->login_retry);
2689         }
2690 }
2691
2692 /*
2693  * qla2x00_mark_all_devices_lost
2694  *      Updates fcport state when device goes offline.
2695  *
2696  * Input:
2697  *      ha = adapter block pointer.
2698  *      fcport = port structure pointer.
2699  *
2700  * Return:
2701  *      None.
2702  *
2703  * Context:
2704  */
2705 void
2706 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2707 {
2708         fc_port_t *fcport;
2709
2710         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2711                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2712                         continue;
2713
2714                 /*
2715                  * No point in marking the device as lost, if the device is
2716                  * already DEAD.
2717                  */
2718                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2719                         continue;
2720                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2721                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2722                         if (defer)
2723                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2724                         else if (vha->vp_idx == fcport->vp_idx)
2725                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2726                 }
2727         }
2728 }
2729
2730 /*
2731 * qla2x00_mem_alloc
2732 *      Allocates adapter memory.
2733 *
2734 * Returns:
2735 *      0  = success.
2736 *      !0  = failure.
2737 */
2738 static int
2739 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2740         struct req_que **req, struct rsp_que **rsp)
2741 {
2742         char    name[16];
2743
2744         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2745                 &ha->init_cb_dma, GFP_KERNEL);
2746         if (!ha->init_cb)
2747                 goto fail;
2748
2749         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2750                 &ha->gid_list_dma, GFP_KERNEL);
2751         if (!ha->gid_list)
2752                 goto fail_free_init_cb;
2753
2754         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2755         if (!ha->srb_mempool)
2756                 goto fail_free_gid_list;
2757
2758         if (IS_QLA82XX(ha)) {
2759                 /* Allocate cache for CT6 Ctx. */
2760                 if (!ctx_cachep) {
2761                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2762                                 sizeof(struct ct6_dsd), 0,
2763                                 SLAB_HWCACHE_ALIGN, NULL);
2764                         if (!ctx_cachep)
2765                                 goto fail_free_gid_list;
2766                 }
2767                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2768                         ctx_cachep);
2769                 if (!ha->ctx_mempool)
2770                         goto fail_free_srb_mempool;
2771                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
2772                     "ctx_cachep=%p ctx_mempool=%p.\n",
2773                     ctx_cachep, ha->ctx_mempool);
2774         }
2775
2776         /* Get memory for cached NVRAM */
2777         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2778         if (!ha->nvram)
2779                 goto fail_free_ctx_mempool;
2780
2781         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2782                 ha->pdev->device);
2783         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2784                 DMA_POOL_SIZE, 8, 0);
2785         if (!ha->s_dma_pool)
2786                 goto fail_free_nvram;
2787
2788         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
2789             "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
2790             ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
2791
2792         if (IS_QLA82XX(ha) || ql2xenabledif) {
2793                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2794                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2795                 if (!ha->dl_dma_pool) {
2796                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
2797                             "Failed to allocate memory for dl_dma_pool.\n");
2798                         goto fail_s_dma_pool;
2799                 }
2800
2801                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2802                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2803                 if (!ha->fcp_cmnd_dma_pool) {
2804                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
2805                             "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
2806                         goto fail_dl_dma_pool;
2807                 }
2808                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
2809                     "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
2810                     ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
2811         }
2812
2813         /* Allocate memory for SNS commands */
2814         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2815         /* Get consistent memory allocated for SNS commands */
2816                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2817                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2818                 if (!ha->sns_cmd)
2819                         goto fail_dma_pool;
2820                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
2821                     "sns_cmd: %p.\n", ha->sns_cmd);
2822         } else {
2823         /* Get consistent memory allocated for MS IOCB */
2824                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2825                         &ha->ms_iocb_dma);
2826                 if (!ha->ms_iocb)
2827                         goto fail_dma_pool;
2828         /* Get consistent memory allocated for CT SNS commands */
2829                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2830                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2831                 if (!ha->ct_sns)
2832                         goto fail_free_ms_iocb;
2833                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
2834                     "ms_iocb=%p ct_sns=%p.\n",
2835                     ha->ms_iocb, ha->ct_sns);
2836         }
2837
2838         /* Allocate memory for request ring */
2839         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2840         if (!*req) {
2841                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
2842                     "Failed to allocate memory for req.\n");
2843                 goto fail_req;
2844         }
2845         (*req)->length = req_len;
2846         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2847                 ((*req)->length + 1) * sizeof(request_t),
2848                 &(*req)->dma, GFP_KERNEL);
2849         if (!(*req)->ring) {
2850                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
2851                     "Failed to allocate memory for req_ring.\n");
2852                 goto fail_req_ring;
2853         }
2854         /* Allocate memory for response ring */
2855         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2856         if (!*rsp) {
2857                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
2858                     "Failed to allocate memory for rsp.\n");
2859                 goto fail_rsp;
2860         }
2861         (*rsp)->hw = ha;
2862         (*rsp)->length = rsp_len;
2863         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2864                 ((*rsp)->length + 1) * sizeof(response_t),
2865                 &(*rsp)->dma, GFP_KERNEL);
2866         if (!(*rsp)->ring) {
2867                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
2868                     "Failed to allocate memory for rsp_ring.\n");
2869                 goto fail_rsp_ring;
2870         }
2871         (*req)->rsp = *rsp;
2872         (*rsp)->req = *req;
2873         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
2874             "req=%p req->length=%d req->ring=%p rsp=%p "
2875             "rsp->length=%d rsp->ring=%p.\n",
2876             *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
2877             (*rsp)->ring);
2878         /* Allocate memory for NVRAM data for vports */
2879         if (ha->nvram_npiv_size) {
2880                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2881                     ha->nvram_npiv_size, GFP_KERNEL);
2882                 if (!ha->npiv_info) {
2883                         ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
2884                             "Failed to allocate memory for npiv_info.\n");
2885                         goto fail_npiv_info;
2886                 }
2887         } else
2888                 ha->npiv_info = NULL;
2889
2890         /* Get consistent memory allocated for EX-INIT-CB. */
2891         if (IS_QLA8XXX_TYPE(ha)) {
2892                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2893                     &ha->ex_init_cb_dma);
2894                 if (!ha->ex_init_cb)
2895                         goto fail_ex_init_cb;
2896                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
2897                     "ex_init_cb=%p.\n", ha->ex_init_cb);
2898         }
2899
2900         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2901
2902         /* Get consistent memory allocated for Async Port-Database. */
2903         if (!IS_FWI2_CAPABLE(ha)) {
2904                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2905                         &ha->async_pd_dma);
2906                 if (!ha->async_pd)
2907                         goto fail_async_pd;
2908                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
2909                     "async_pd=%p.\n", ha->async_pd);
2910         }
2911
2912         INIT_LIST_HEAD(&ha->vp_list);
2913         return 1;
2914
2915 fail_async_pd:
2916         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2917 fail_ex_init_cb:
2918         kfree(ha->npiv_info);
2919 fail_npiv_info:
2920         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2921                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2922         (*rsp)->ring = NULL;
2923         (*rsp)->dma = 0;
2924 fail_rsp_ring:
2925         kfree(*rsp);
2926 fail_rsp:
2927         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2928                 sizeof(request_t), (*req)->ring, (*req)->dma);
2929         (*req)->ring = NULL;
2930         (*req)->dma = 0;
2931 fail_req_ring:
2932         kfree(*req);
2933 fail_req:
2934         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2935                 ha->ct_sns, ha->ct_sns_dma);
2936         ha->ct_sns = NULL;
2937         ha->ct_sns_dma = 0;
2938 fail_free_ms_iocb:
2939         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2940         ha->ms_iocb = NULL;
2941         ha->ms_iocb_dma = 0;
2942 fail_dma_pool:
2943         if (IS_QLA82XX(ha) || ql2xenabledif) {
2944                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2945                 ha->fcp_cmnd_dma_pool = NULL;
2946         }
2947 fail_dl_dma_pool:
2948         if (IS_QLA82XX(ha) || ql2xenabledif) {
2949                 dma_pool_destroy(ha->dl_dma_pool);
2950                 ha->dl_dma_pool = NULL;
2951         }
2952 fail_s_dma_pool:
2953         dma_pool_destroy(ha->s_dma_pool);
2954         ha->s_dma_pool = NULL;
2955 fail_free_nvram:
2956         kfree(ha->nvram);
2957         ha->nvram = NULL;
2958 fail_free_ctx_mempool:
2959         mempool_destroy(ha->ctx_mempool);
2960         ha->ctx_mempool = NULL;
2961 fail_free_srb_mempool:
2962         mempool_destroy(ha->srb_mempool);
2963         ha->srb_mempool = NULL;
2964 fail_free_gid_list:
2965         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2966         ha->gid_list_dma);
2967         ha->gid_list = NULL;
2968         ha->gid_list_dma = 0;
2969 fail_free_init_cb:
2970         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2971         ha->init_cb_dma);
2972         ha->init_cb = NULL;
2973         ha->init_cb_dma = 0;
2974 fail:
2975         ql_log(ql_log_fatal, NULL, 0x0030,
2976             "Memory allocation failure.\n");
2977         return -ENOMEM;
2978 }
2979
2980 /*
2981 * qla2x00_free_fw_dump
2982 *       Frees fw dump stuff.
2983 *
2984 * Input:
2985 *       ha = adapter block pointer.
2986 */
2987 static void
2988 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2989 {
2990         if (ha->fce)
2991                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2992                     ha->fce_dma);
2993
2994         if (ha->fw_dump) {
2995                 if (ha->eft)
2996                         dma_free_coherent(&ha->pdev->dev,
2997                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2998                 vfree(ha->fw_dump);
2999         }
3000         ha->fce = NULL;
3001         ha->fce_dma = 0;
3002         ha->eft = NULL;
3003         ha->eft_dma = 0;
3004         ha->fw_dump = NULL;
3005         ha->fw_dumped = 0;
3006         ha->fw_dump_reading = 0;
3007 }
3008
3009 /*
3010 * qla2x00_mem_free
3011 *      Frees all adapter allocated memory.
3012 *
3013 * Input:
3014 *      ha = adapter block pointer.
3015 */
3016 static void
3017 qla2x00_mem_free(struct qla_hw_data *ha)
3018 {
3019         qla2x00_free_fw_dump(ha);
3020
3021         if (ha->srb_mempool)
3022                 mempool_destroy(ha->srb_mempool);
3023
3024         if (ha->dcbx_tlv)
3025                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3026                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
3027
3028         if (ha->xgmac_data)
3029                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3030                     ha->xgmac_data, ha->xgmac_data_dma);
3031
3032         if (ha->sns_cmd)
3033                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3034                 ha->sns_cmd, ha->sns_cmd_dma);
3035
3036         if (ha->ct_sns)
3037                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3038                 ha->ct_sns, ha->ct_sns_dma);
3039
3040         if (ha->sfp_data)
3041                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3042
3043         if (ha->edc_data)
3044                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
3045
3046         if (ha->ms_iocb)
3047                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3048
3049         if (ha->ex_init_cb)
3050                 dma_pool_free(ha->s_dma_pool,
3051                         ha->ex_init_cb, ha->ex_init_cb_dma);
3052
3053         if (ha->async_pd)
3054                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3055
3056         if (ha->s_dma_pool)
3057                 dma_pool_destroy(ha->s_dma_pool);
3058
3059         if (ha->gid_list)
3060                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
3061                 ha->gid_list_dma);
3062
3063         if (IS_QLA82XX(ha)) {
3064                 if (!list_empty(&ha->gbl_dsd_list)) {
3065                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
3066
3067                         /* clean up allocated prev pool */
3068                         list_for_each_entry_safe(dsd_ptr,
3069                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
3070                                 dma_pool_free(ha->dl_dma_pool,
3071                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3072                                 list_del(&dsd_ptr->list);
3073                                 kfree(dsd_ptr);
3074                         }
3075                 }
3076         }
3077
3078         if (ha->dl_dma_pool)
3079                 dma_pool_destroy(ha->dl_dma_pool);
3080
3081         if (ha->fcp_cmnd_dma_pool)
3082                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3083
3084         if (ha->ctx_mempool)
3085                 mempool_destroy(ha->ctx_mempool);
3086
3087         if (ha->init_cb)
3088                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3089                         ha->init_cb, ha->init_cb_dma);
3090         vfree(ha->optrom_buffer);
3091         kfree(ha->nvram);
3092         kfree(ha->npiv_info);
3093
3094         ha->srb_mempool = NULL;
3095         ha->ctx_mempool = NULL;
3096         ha->sns_cmd = NULL;
3097         ha->sns_cmd_dma = 0;
3098         ha->ct_sns = NULL;
3099         ha->ct_sns_dma = 0;
3100         ha->ms_iocb = NULL;
3101         ha->ms_iocb_dma = 0;
3102         ha->init_cb = NULL;
3103         ha->init_cb_dma = 0;
3104         ha->ex_init_cb = NULL;
3105         ha->ex_init_cb_dma = 0;
3106         ha->async_pd = NULL;
3107         ha->async_pd_dma = 0;
3108
3109         ha->s_dma_pool = NULL;
3110         ha->dl_dma_pool = NULL;
3111         ha->fcp_cmnd_dma_pool = NULL;
3112
3113         ha->gid_list = NULL;
3114         ha->gid_list_dma = 0;
3115 }
3116
3117 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3118                                                 struct qla_hw_data *ha)
3119 {
3120         struct Scsi_Host *host;
3121         struct scsi_qla_host *vha = NULL;
3122
3123         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3124         if (host == NULL) {
3125                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3126                     "Failed to allocate host from the scsi layer, aborting.\n");
3127                 goto fail;
3128         }
3129
3130         /* Clear our data area */
3131         vha = shost_priv(host);
3132         memset(vha, 0, sizeof(scsi_qla_host_t));
3133
3134         vha->host = host;
3135         vha->host_no = host->host_no;
3136         vha->hw = ha;
3137
3138         INIT_LIST_HEAD(&vha->vp_fcports);
3139         INIT_LIST_HEAD(&vha->work_list);
3140         INIT_LIST_HEAD(&vha->list);
3141
3142         spin_lock_init(&vha->work_lock);
3143
3144         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3145         ql_dbg(ql_dbg_init, vha, 0x0041,
3146             "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3147             vha->host, vha->hw, vha,
3148             dev_name(&(ha->pdev->dev)));
3149
3150         return vha;
3151
3152 fail:
3153         return vha;
3154 }
3155
3156 static struct qla_work_evt *
3157 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3158 {
3159         struct qla_work_evt *e;
3160         uint8_t bail;
3161
3162         QLA_VHA_MARK_BUSY(vha, bail);
3163         if (bail)
3164                 return NULL;
3165
3166         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3167         if (!e) {
3168                 QLA_VHA_MARK_NOT_BUSY(vha);
3169                 return NULL;
3170         }
3171
3172         INIT_LIST_HEAD(&e->list);
3173         e->type = type;
3174         e->flags = QLA_EVT_FLAG_FREE;
3175         return e;
3176 }
3177
3178 static int
3179 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3180 {
3181         unsigned long flags;
3182
3183         spin_lock_irqsave(&vha->work_lock, flags);
3184         list_add_tail(&e->list, &vha->work_list);
3185         spin_unlock_irqrestore(&vha->work_lock, flags);
3186         qla2xxx_wake_dpc(vha);
3187
3188         return QLA_SUCCESS;
3189 }
3190
3191 int
3192 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3193     u32 data)
3194 {
3195         struct qla_work_evt *e;
3196
3197         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3198         if (!e)
3199                 return QLA_FUNCTION_FAILED;
3200
3201         e->u.aen.code = code;
3202         e->u.aen.data = data;
3203         return qla2x00_post_work(vha, e);
3204 }
3205
3206 int
3207 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3208 {
3209         struct qla_work_evt *e;
3210
3211         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3212         if (!e)
3213                 return QLA_FUNCTION_FAILED;
3214
3215         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3216         return qla2x00_post_work(vha, e);
3217 }
3218
3219 #define qla2x00_post_async_work(name, type)     \
3220 int qla2x00_post_async_##name##_work(           \
3221     struct scsi_qla_host *vha,                  \
3222     fc_port_t *fcport, uint16_t *data)          \
3223 {                                               \
3224         struct qla_work_evt *e;                 \
3225                                                 \
3226         e = qla2x00_alloc_work(vha, type);      \
3227         if (!e)                                 \
3228                 return QLA_FUNCTION_FAILED;     \
3229                                                 \
3230         e->u.logio.fcport = fcport;             \
3231         if (data) {                             \
3232                 e->u.logio.data[0] = data[0];   \
3233                 e->u.logio.data[1] = data[1];   \
3234         }                                       \
3235         return qla2x00_post_work(vha, e);       \
3236 }
3237
3238 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3239 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3240 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3241 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3242 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3243 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3244
3245 int
3246 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3247 {
3248         struct qla_work_evt *e;
3249
3250         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3251         if (!e)
3252                 return QLA_FUNCTION_FAILED;
3253
3254         e->u.uevent.code = code;
3255         return qla2x00_post_work(vha, e);
3256 }
3257
3258 static void
3259 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3260 {
3261         char event_string[40];
3262         char *envp[] = { event_string, NULL };
3263
3264         switch (code) {
3265         case QLA_UEVENT_CODE_FW_DUMP:
3266                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3267                     vha->host_no);
3268                 break;
3269         default:
3270                 /* do nothing */
3271                 break;
3272         }
3273         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3274 }
3275
3276 void
3277 qla2x00_do_work(struct scsi_qla_host *vha)
3278 {
3279         struct qla_work_evt *e, *tmp;
3280         unsigned long flags;
3281         LIST_HEAD(work);
3282
3283         spin_lock_irqsave(&vha->work_lock, flags);
3284         list_splice_init(&vha->work_list, &work);
3285         spin_unlock_irqrestore(&vha->work_lock, flags);
3286
3287         list_for_each_entry_safe(e, tmp, &work, list) {
3288                 list_del_init(&e->list);
3289
3290                 switch (e->type) {
3291                 case QLA_EVT_AEN:
3292                         fc_host_post_event(vha->host, fc_get_event_number(),
3293                             e->u.aen.code, e->u.aen.data);
3294                         break;
3295                 case QLA_EVT_IDC_ACK:
3296                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3297                         break;
3298                 case QLA_EVT_ASYNC_LOGIN:
3299                         qla2x00_async_login(vha, e->u.logio.fcport,
3300                             e->u.logio.data);
3301                         break;
3302                 case QLA_EVT_ASYNC_LOGIN_DONE:
3303                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3304                             e->u.logio.data);
3305                         break;
3306                 case QLA_EVT_ASYNC_LOGOUT:
3307                         qla2x00_async_logout(vha, e->u.logio.fcport);
3308                         break;
3309                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3310                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3311                             e->u.logio.data);
3312                         break;
3313                 case QLA_EVT_ASYNC_ADISC:
3314                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3315                             e->u.logio.data);
3316                         break;
3317                 case QLA_EVT_ASYNC_ADISC_DONE:
3318                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3319                             e->u.logio.data);
3320                         break;
3321                 case QLA_EVT_UEVENT:
3322                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3323                         break;
3324                 }
3325                 if (e->flags & QLA_EVT_FLAG_FREE)
3326                         kfree(e);
3327
3328                 /* For each work completed decrement vha ref count */
3329                 QLA_VHA_MARK_NOT_BUSY(vha);
3330         }
3331 }
3332
3333 /* Relogins all the fcports of a vport
3334  * Context: dpc thread
3335  */
3336 void qla2x00_relogin(struct scsi_qla_host *vha)
3337 {
3338         fc_port_t       *fcport;
3339         int status;
3340         uint16_t        next_loopid = 0;
3341         struct qla_hw_data *ha = vha->hw;
3342         uint16_t data[2];
3343
3344         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3345         /*
3346          * If the port is not ONLINE then try to login
3347          * to it if we haven't run out of retries.
3348          */
3349                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3350                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3351                         fcport->login_retry--;
3352                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3353                                 if (fcport->flags & FCF_FCP2_DEVICE)
3354                                         ha->isp_ops->fabric_logout(vha,
3355                                                         fcport->loop_id,
3356                                                         fcport->d_id.b.domain,
3357                                                         fcport->d_id.b.area,
3358                                                         fcport->d_id.b.al_pa);
3359
3360                                 if (fcport->loop_id == FC_NO_LOOP_ID) {
3361                                         fcport->loop_id = next_loopid =
3362                                             ha->min_external_loopid;
3363                                         status = qla2x00_find_new_loop_id(
3364                                             vha, fcport);
3365                                         if (status != QLA_SUCCESS) {
3366                                                 /* Ran out of IDs to use */
3367                                                 break;
3368                                         }
3369                                 }
3370
3371                                 if (IS_ALOGIO_CAPABLE(ha)) {
3372                                         fcport->flags |= FCF_ASYNC_SENT;
3373                                         data[0] = 0;
3374                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3375                                         status = qla2x00_post_async_login_work(
3376                                             vha, fcport, data);
3377                                         if (status == QLA_SUCCESS)
3378                                                 continue;
3379                                         /* Attempt a retry. */
3380                                         status = 1;
3381                                 } else
3382                                         status = qla2x00_fabric_login(vha,
3383                                             fcport, &next_loopid);
3384                         } else
3385                                 status = qla2x00_local_device_login(vha,
3386                                                                 fcport);
3387
3388                         if (status == QLA_SUCCESS) {
3389                                 fcport->old_loop_id = fcport->loop_id;
3390
3391                                 ql_dbg(ql_dbg_disc, vha, 0x2003,
3392                                     "Port login OK: logged in ID 0x%x.\n",
3393                                     fcport->loop_id);
3394
3395                                 qla2x00_update_fcport(vha, fcport);
3396
3397                         } else if (status == 1) {
3398                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3399                                 /* retry the login again */
3400                                 ql_dbg(ql_dbg_disc, vha, 0x2007,
3401                                     "Retrying %d login again loop_id 0x%x.\n",
3402                                     fcport->login_retry, fcport->loop_id);
3403                         } else {
3404                                 fcport->login_retry = 0;
3405                         }
3406
3407                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3408                                 fcport->loop_id = FC_NO_LOOP_ID;
3409                 }
3410                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3411                         break;
3412         }
3413 }
3414
3415 /**************************************************************************
3416 * qla2x00_do_dpc
3417 *   This kernel thread is a task that is schedule by the interrupt handler
3418 *   to perform the background processing for interrupts.
3419 *
3420 * Notes:
3421 * This task always run in the context of a kernel thread.  It
3422 * is kick-off by the driver's detect code and starts up
3423 * up one per adapter. It immediately goes to sleep and waits for
3424 * some fibre event.  When either the interrupt handler or
3425 * the timer routine detects a event it will one of the task
3426 * bits then wake us up.
3427 **************************************************************************/
3428 static int
3429 qla2x00_do_dpc(void *data)
3430 {
3431         int             rval;
3432         scsi_qla_host_t *base_vha;
3433         struct qla_hw_data *ha;
3434
3435         ha = (struct qla_hw_data *)data;
3436         base_vha = pci_get_drvdata(ha->pdev);
3437
3438         set_user_nice(current, -20);
3439
3440         set_current_state(TASK_INTERRUPTIBLE);
3441         while (!kthread_should_stop()) {
3442                 ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
3443                     "DPC handler sleeping.\n");
3444
3445                 schedule();
3446                 __set_current_state(TASK_RUNNING);
3447
3448                 if (!base_vha->flags.init_done || ha->flags.mbox_busy)
3449                         goto end_loop;
3450
3451                 if (ha->flags.eeh_busy) {
3452                         ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
3453                             "eeh_busy=%d.\n", ha->flags.eeh_busy);
3454                         goto end_loop;
3455                 }
3456
3457                 ha->dpc_active = 1;
3458
3459                 ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
3460                     "DPC handler waking up.\n");
3461                 ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
3462                     "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
3463
3464                 qla2x00_do_work(base_vha);
3465
3466                 if (IS_QLA82XX(ha)) {
3467                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3468                                 &base_vha->dpc_flags)) {
3469                                 qla82xx_idc_lock(ha);
3470                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3471                                         QLA82XX_DEV_FAILED);
3472                                 qla82xx_idc_unlock(ha);
3473                                 ql_log(ql_log_info, base_vha, 0x4004,
3474                                     "HW State: FAILED.\n");
3475                                 qla82xx_device_state_handler(base_vha);
3476                                 continue;
3477                         }
3478
3479                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3480                                 &base_vha->dpc_flags)) {
3481
3482                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
3483                                     "FCoE context reset scheduled.\n");
3484                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3485                                         &base_vha->dpc_flags))) {
3486                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3487                                                 /* FCoE-ctx reset failed.
3488                                                  * Escalate to chip-reset
3489                                                  */
3490                                                 set_bit(ISP_ABORT_NEEDED,
3491                                                         &base_vha->dpc_flags);
3492                                         }
3493                                         clear_bit(ABORT_ISP_ACTIVE,
3494                                                 &base_vha->dpc_flags);
3495                                 }
3496
3497                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
3498                                     "FCoE context reset end.\n");
3499                         }
3500                 }
3501
3502                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3503                                                 &base_vha->dpc_flags)) {
3504
3505                         ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
3506                             "ISP abort scheduled.\n");
3507                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3508                             &base_vha->dpc_flags))) {
3509
3510                                 if (ha->isp_ops->abort_isp(base_vha)) {
3511                                         /* failed. retry later */
3512                                         set_bit(ISP_ABORT_NEEDED,
3513                                             &base_vha->dpc_flags);
3514                                 }
3515                                 clear_bit(ABORT_ISP_ACTIVE,
3516                                                 &base_vha->dpc_flags);
3517                         }
3518
3519                         ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
3520                             "ISP abort end.\n");
3521                 }
3522
3523                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3524                         qla2x00_update_fcports(base_vha);
3525                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3526                 }
3527
3528                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3529                         ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
3530                             "Quiescence mode scheduled.\n");
3531                         qla82xx_device_state_handler(base_vha);
3532                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3533                         if (!ha->flags.quiesce_owner) {
3534                                 qla2x00_perform_loop_resync(base_vha);
3535
3536                                 qla82xx_idc_lock(ha);
3537                                 qla82xx_clear_qsnt_ready(base_vha);
3538                                 qla82xx_idc_unlock(ha);
3539                         }
3540                         ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
3541                             "Quiescence mode end.\n");
3542                 }
3543
3544                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3545                                                         &base_vha->dpc_flags) &&
3546                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3547
3548                         ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
3549                             "Reset marker scheduled.\n");
3550                         qla2x00_rst_aen(base_vha);
3551                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3552                         ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
3553                             "Reset marker end.\n");
3554                 }
3555
3556                 /* Retry each device up to login retry count */
3557                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3558                                                 &base_vha->dpc_flags)) &&
3559                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3560                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3561
3562                         ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
3563                             "Relogin scheduled.\n");
3564                         qla2x00_relogin(base_vha);
3565                         ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
3566                             "Relogin end.\n");
3567                 }
3568
3569                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3570                                                         &base_vha->dpc_flags)) {
3571
3572                         ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
3573                             "Loop resync scheduled.\n");
3574
3575                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3576                             &base_vha->dpc_flags))) {
3577
3578                                 rval = qla2x00_loop_resync(base_vha);
3579
3580                                 clear_bit(LOOP_RESYNC_ACTIVE,
3581                                                 &base_vha->dpc_flags);
3582                         }
3583
3584                         ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
3585                             "Loop resync end.\n");
3586                 }
3587
3588                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3589                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3590                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3591                         qla2xxx_flash_npiv_conf(base_vha);
3592                 }
3593
3594                 if (!ha->interrupts_on)
3595                         ha->isp_ops->enable_intrs(ha);
3596
3597                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3598                                         &base_vha->dpc_flags))
3599                         ha->isp_ops->beacon_blink(base_vha);
3600
3601                 qla2x00_do_dpc_all_vps(base_vha);
3602
3603                 ha->dpc_active = 0;
3604 end_loop:
3605                 set_current_state(TASK_INTERRUPTIBLE);
3606         } /* End of while(1) */
3607         __set_current_state(TASK_RUNNING);
3608
3609         ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
3610             "DPC handler exiting.\n");
3611
3612         /*
3613          * Make sure that nobody tries to wake us up again.
3614          */
3615         ha->dpc_active = 0;
3616
3617         /* Cleanup any residual CTX SRBs. */
3618         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3619
3620         return 0;
3621 }
3622
3623 void
3624 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3625 {
3626         struct qla_hw_data *ha = vha->hw;
3627         struct task_struct *t = ha->dpc_thread;
3628
3629         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3630                 wake_up_process(t);
3631 }
3632
3633 /*
3634 *  qla2x00_rst_aen
3635 *      Processes asynchronous reset.
3636 *
3637 * Input:
3638 *      ha  = adapter block pointer.
3639 */
3640 static void
3641 qla2x00_rst_aen(scsi_qla_host_t *vha)
3642 {
3643         if (vha->flags.online && !vha->flags.reset_active &&
3644             !atomic_read(&vha->loop_down_timer) &&
3645             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3646                 do {
3647                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3648
3649                         /*
3650                          * Issue marker command only when we are going to start
3651                          * the I/O.
3652                          */
3653                         vha->marker_needed = 1;
3654                 } while (!atomic_read(&vha->loop_down_timer) &&
3655                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3656         }
3657 }
3658
3659 static void
3660 qla2x00_sp_free_dma(srb_t *sp)
3661 {
3662         struct scsi_cmnd *cmd = sp->cmd;
3663         struct qla_hw_data *ha = sp->fcport->vha->hw;
3664
3665         if (sp->flags & SRB_DMA_VALID) {
3666                 scsi_dma_unmap(cmd);
3667                 sp->flags &= ~SRB_DMA_VALID;
3668         }
3669
3670         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3671                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3672                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3673                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3674         }
3675
3676         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3677                 /* List assured to be having elements */
3678                 qla2x00_clean_dsd_pool(ha, sp);
3679                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3680         }
3681
3682         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3683                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3684                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3685                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3686         }
3687
3688         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3689                 struct ct6_dsd *ctx = sp->ctx;
3690                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3691                         ctx->fcp_cmnd_dma);
3692                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3693                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3694                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3695                 mempool_free(sp->ctx, ha->ctx_mempool);
3696                 sp->ctx = NULL;
3697         }
3698
3699         CMD_SP(cmd) = NULL;
3700 }
3701
3702 static void
3703 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3704 {
3705         struct scsi_cmnd *cmd = sp->cmd;
3706
3707         qla2x00_sp_free_dma(sp);
3708         mempool_free(sp, ha->srb_mempool);
3709         cmd->scsi_done(cmd);
3710 }
3711
3712 void
3713 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3714 {
3715         if (atomic_read(&sp->ref_count) == 0) {
3716                 ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
3717                     "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
3718                     sp, sp->cmd);
3719                 if (ql2xextended_error_logging & ql_dbg_io)
3720                         BUG();
3721                 return;
3722         }
3723         if (!atomic_dec_and_test(&sp->ref_count))
3724                 return;
3725         qla2x00_sp_final_compl(ha, sp);
3726 }
3727
3728 /**************************************************************************
3729 *   qla2x00_timer
3730 *
3731 * Description:
3732 *   One second timer
3733 *
3734 * Context: Interrupt
3735 ***************************************************************************/
3736 void
3737 qla2x00_timer(scsi_qla_host_t *vha)
3738 {
3739         unsigned long   cpu_flags = 0;
3740         int             start_dpc = 0;
3741         int             index;
3742         srb_t           *sp;
3743         uint16_t        w;
3744         struct qla_hw_data *ha = vha->hw;
3745         struct req_que *req;
3746
3747         if (ha->flags.eeh_busy) {
3748                 ql_dbg(ql_dbg_timer, vha, 0x6000,
3749                     "EEH = %d, restarting timer.\n",
3750                     ha->flags.eeh_busy);
3751                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3752                 return;
3753         }
3754
3755         /* Hardware read to raise pending EEH errors during mailbox waits. */
3756         if (!pci_channel_offline(ha->pdev))
3757                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3758
3759         /* Make sure qla82xx_watchdog is run only for physical port */
3760         if (!vha->vp_idx && IS_QLA82XX(ha)) {
3761                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3762                         start_dpc++;
3763                 qla82xx_watchdog(vha);
3764         }
3765
3766         /* Loop down handler. */
3767         if (atomic_read(&vha->loop_down_timer) > 0 &&
3768             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3769             !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3770                 && vha->flags.online) {
3771
3772                 if (atomic_read(&vha->loop_down_timer) ==
3773                     vha->loop_down_abort_time) {
3774
3775                         ql_log(ql_log_info, vha, 0x6008,
3776                             "Loop down - aborting the queues before time expires.\n");
3777
3778                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3779                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3780
3781                         /*
3782                          * Schedule an ISP abort to return any FCP2-device
3783                          * commands.
3784                          */
3785                         /* NPIV - scan physical port only */
3786                         if (!vha->vp_idx) {
3787                                 spin_lock_irqsave(&ha->hardware_lock,
3788                                     cpu_flags);
3789                                 req = ha->req_q_map[0];
3790                                 for (index = 1;
3791                                     index < MAX_OUTSTANDING_COMMANDS;
3792                                     index++) {
3793                                         fc_port_t *sfcp;
3794
3795                                         sp = req->outstanding_cmds[index];
3796                                         if (!sp)
3797                                                 continue;
3798                                         if (sp->ctx && !IS_PROT_IO(sp))
3799                                                 continue;
3800                                         sfcp = sp->fcport;
3801                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3802                                                 continue;
3803
3804                                         if (IS_QLA82XX(ha))
3805                                                 set_bit(FCOE_CTX_RESET_NEEDED,
3806                                                         &vha->dpc_flags);
3807                                         else
3808                                                 set_bit(ISP_ABORT_NEEDED,
3809                                                         &vha->dpc_flags);
3810                                         break;
3811                                 }
3812                                 spin_unlock_irqrestore(&ha->hardware_lock,
3813                                                                 cpu_flags);
3814                         }
3815                         start_dpc++;
3816                 }
3817
3818                 /* if the loop has been down for 4 minutes, reinit adapter */
3819                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3820                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3821                                 ql_log(ql_log_warn, vha, 0x6009,
3822                                     "Loop down - aborting ISP.\n");
3823
3824                                 if (IS_QLA82XX(ha))
3825                                         set_bit(FCOE_CTX_RESET_NEEDED,
3826                                                 &vha->dpc_flags);
3827                                 else
3828                                         set_bit(ISP_ABORT_NEEDED,
3829                                                 &vha->dpc_flags);
3830                         }
3831                 }
3832                 ql_dbg(ql_dbg_timer, vha, 0x600a,
3833                     "Loop down - seconds remaining %d.\n",
3834                     atomic_read(&vha->loop_down_timer));
3835         }
3836
3837         /* Check if beacon LED needs to be blinked for physical host only */
3838         if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
3839                 /* There is no beacon_blink function for ISP82xx */
3840                 if (!IS_QLA82XX(ha)) {
3841                         set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3842                         start_dpc++;
3843                 }
3844         }
3845
3846         /* Process any deferred work. */
3847         if (!list_empty(&vha->work_list))
3848                 start_dpc++;
3849
3850         /* Schedule the DPC routine if needed */
3851         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3852             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3853             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3854             start_dpc ||
3855             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3856             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3857             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3858             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3859             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3860             test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
3861                 ql_dbg(ql_dbg_timer, vha, 0x600b,
3862                     "isp_abort_needed=%d loop_resync_needed=%d "
3863                     "fcport_update_needed=%d start_dpc=%d "
3864                     "reset_marker_needed=%d",
3865                     test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
3866                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
3867                     test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
3868                     start_dpc,
3869                     test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
3870                 ql_dbg(ql_dbg_timer, vha, 0x600c,
3871                     "beacon_blink_needed=%d isp_unrecoverable=%d "
3872                     "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
3873                     "relogin_needed=%d.\n",
3874                     test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
3875                     test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
3876                     test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
3877                     test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
3878                     test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
3879                 qla2xxx_wake_dpc(vha);
3880         }
3881
3882         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3883 }
3884
3885 /* Firmware interface routines. */
3886
3887 #define FW_BLOBS        8
3888 #define FW_ISP21XX      0
3889 #define FW_ISP22XX      1
3890 #define FW_ISP2300      2
3891 #define FW_ISP2322      3
3892 #define FW_ISP24XX      4
3893 #define FW_ISP25XX      5
3894 #define FW_ISP81XX      6
3895 #define FW_ISP82XX      7
3896
3897 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3898 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3899 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3900 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3901 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3902 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3903 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3904 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3905
3906 static DEFINE_MUTEX(qla_fw_lock);
3907
3908 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3909         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3910         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3911         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3912         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3913         { .name = FW_FILE_ISP24XX, },
3914         { .name = FW_FILE_ISP25XX, },
3915         { .name = FW_FILE_ISP81XX, },
3916         { .name = FW_FILE_ISP82XX, },
3917 };
3918
3919 struct fw_blob *
3920 qla2x00_request_firmware(scsi_qla_host_t *vha)
3921 {
3922         struct qla_hw_data *ha = vha->hw;
3923         struct fw_blob *blob;
3924
3925         blob = NULL;
3926         if (IS_QLA2100(ha)) {
3927                 blob = &qla_fw_blobs[FW_ISP21XX];
3928         } else if (IS_QLA2200(ha)) {
3929                 blob = &qla_fw_blobs[FW_ISP22XX];
3930         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3931                 blob = &qla_fw_blobs[FW_ISP2300];
3932         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3933                 blob = &qla_fw_blobs[FW_ISP2322];
3934         } else if (IS_QLA24XX_TYPE(ha)) {
3935                 blob = &qla_fw_blobs[FW_ISP24XX];
3936         } else if (IS_QLA25XX(ha)) {
3937                 blob = &qla_fw_blobs[FW_ISP25XX];
3938         } else if (IS_QLA81XX(ha)) {
3939                 blob = &qla_fw_blobs[FW_ISP81XX];
3940         } else if (IS_QLA82XX(ha)) {
3941                 blob = &qla_fw_blobs[FW_ISP82XX];
3942         }
3943
3944         mutex_lock(&qla_fw_lock);
3945         if (blob->fw)
3946                 goto out;
3947
3948         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3949                 ql_log(ql_log_warn, vha, 0x0063,
3950                     "Failed to load firmware image (%s).\n", blob->name);
3951                 blob->fw = NULL;
3952                 blob = NULL;
3953                 goto out;
3954         }
3955
3956 out:
3957         mutex_unlock(&qla_fw_lock);
3958         return blob;
3959 }
3960
3961 static void
3962 qla2x00_release_firmware(void)
3963 {
3964         int idx;
3965
3966         mutex_lock(&qla_fw_lock);
3967         for (idx = 0; idx < FW_BLOBS; idx++)
3968                 if (qla_fw_blobs[idx].fw)
3969                         release_firmware(qla_fw_blobs[idx].fw);
3970         mutex_unlock(&qla_fw_lock);
3971 }
3972
3973 static pci_ers_result_t
3974 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3975 {
3976         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3977         struct qla_hw_data *ha = vha->hw;
3978
3979         ql_dbg(ql_dbg_aer, vha, 0x9000,
3980             "PCI error detected, state %x.\n", state);
3981
3982         switch (state) {
3983         case pci_channel_io_normal:
3984                 ha->flags.eeh_busy = 0;
3985                 return PCI_ERS_RESULT_CAN_RECOVER;
3986         case pci_channel_io_frozen:
3987                 ha->flags.eeh_busy = 1;
3988                 /* For ISP82XX complete any pending mailbox cmd */
3989                 if (IS_QLA82XX(ha)) {
3990                         ha->flags.isp82xx_fw_hung = 1;
3991                         ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
3992                         qla82xx_clear_pending_mbx(vha);
3993                 }
3994                 qla2x00_free_irqs(vha);
3995                 pci_disable_device(pdev);
3996                 /* Return back all IOs */
3997                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3998                 return PCI_ERS_RESULT_NEED_RESET;
3999         case pci_channel_io_perm_failure:
4000                 ha->flags.pci_channel_io_perm_failure = 1;
4001                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4002                 return PCI_ERS_RESULT_DISCONNECT;
4003         }
4004         return PCI_ERS_RESULT_NEED_RESET;
4005 }
4006
4007 static pci_ers_result_t
4008 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
4009 {
4010         int risc_paused = 0;
4011         uint32_t stat;
4012         unsigned long flags;
4013         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4014         struct qla_hw_data *ha = base_vha->hw;
4015         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4016         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
4017
4018         if (IS_QLA82XX(ha))
4019                 return PCI_ERS_RESULT_RECOVERED;
4020
4021         spin_lock_irqsave(&ha->hardware_lock, flags);
4022         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
4023                 stat = RD_REG_DWORD(&reg->hccr);
4024                 if (stat & HCCR_RISC_PAUSE)
4025                         risc_paused = 1;
4026         } else if (IS_QLA23XX(ha)) {
4027                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
4028                 if (stat & HSR_RISC_PAUSED)
4029                         risc_paused = 1;
4030         } else if (IS_FWI2_CAPABLE(ha)) {
4031                 stat = RD_REG_DWORD(&reg24->host_status);
4032                 if (stat & HSRX_RISC_PAUSED)
4033                         risc_paused = 1;
4034         }
4035         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4036
4037         if (risc_paused) {
4038                 ql_log(ql_log_info, base_vha, 0x9003,
4039                     "RISC paused -- mmio_enabled, Dumping firmware.\n");
4040                 ha->isp_ops->fw_dump(base_vha, 0);
4041
4042                 return PCI_ERS_RESULT_NEED_RESET;
4043         } else
4044                 return PCI_ERS_RESULT_RECOVERED;
4045 }
4046
4047 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
4048 {
4049         uint32_t rval = QLA_FUNCTION_FAILED;
4050         uint32_t drv_active = 0;
4051         struct qla_hw_data *ha = base_vha->hw;
4052         int fn;
4053         struct pci_dev *other_pdev = NULL;
4054
4055         ql_dbg(ql_dbg_aer, base_vha, 0x9006,
4056             "Entered %s.\n", __func__);
4057
4058         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4059
4060         if (base_vha->flags.online) {
4061                 /* Abort all outstanding commands,
4062                  * so as to be requeued later */
4063                 qla2x00_abort_isp_cleanup(base_vha);
4064         }
4065
4066
4067         fn = PCI_FUNC(ha->pdev->devfn);
4068         while (fn > 0) {
4069                 fn--;
4070                 ql_dbg(ql_dbg_aer, base_vha, 0x9007,
4071                     "Finding pci device at function = 0x%x.\n", fn);
4072                 other_pdev =
4073                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4074                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4075                     fn));
4076
4077                 if (!other_pdev)
4078                         continue;
4079                 if (atomic_read(&other_pdev->enable_cnt)) {
4080                         ql_dbg(ql_dbg_aer, base_vha, 0x9008,
4081                             "Found PCI func available and enable at 0x%x.\n",
4082                             fn);
4083                         pci_dev_put(other_pdev);
4084                         break;
4085                 }
4086                 pci_dev_put(other_pdev);
4087         }
4088
4089         if (!fn) {
4090                 /* Reset owner */
4091                 ql_dbg(ql_dbg_aer, base_vha, 0x9009,
4092                     "This devfn is reset owner = 0x%x.\n",
4093                     ha->pdev->devfn);
4094                 qla82xx_idc_lock(ha);
4095
4096                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4097                     QLA82XX_DEV_INITIALIZING);
4098
4099                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
4100                     QLA82XX_IDC_VERSION);
4101
4102                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
4103                 ql_dbg(ql_dbg_aer, base_vha, 0x900a,
4104                     "drv_active = 0x%x.\n", drv_active);
4105
4106                 qla82xx_idc_unlock(ha);
4107                 /* Reset if device is not already reset
4108                  * drv_active would be 0 if a reset has already been done
4109                  */
4110                 if (drv_active)
4111                         rval = qla82xx_start_firmware(base_vha);
4112                 else
4113                         rval = QLA_SUCCESS;
4114                 qla82xx_idc_lock(ha);
4115
4116                 if (rval != QLA_SUCCESS) {
4117                         ql_log(ql_log_info, base_vha, 0x900b,
4118                             "HW State: FAILED.\n");
4119                         qla82xx_clear_drv_active(ha);
4120                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4121                             QLA82XX_DEV_FAILED);
4122                 } else {
4123                         ql_log(ql_log_info, base_vha, 0x900c,
4124                             "HW State: READY.\n");
4125                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4126                             QLA82XX_DEV_READY);
4127                         qla82xx_idc_unlock(ha);
4128                         ha->flags.isp82xx_fw_hung = 0;
4129                         rval = qla82xx_restart_isp(base_vha);
4130                         qla82xx_idc_lock(ha);
4131                         /* Clear driver state register */
4132                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
4133                         qla82xx_set_drv_active(base_vha);
4134                 }
4135                 qla82xx_idc_unlock(ha);
4136         } else {
4137                 ql_dbg(ql_dbg_aer, base_vha, 0x900d,
4138                     "This devfn is not reset owner = 0x%x.\n",
4139                     ha->pdev->devfn);
4140                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
4141                     QLA82XX_DEV_READY)) {
4142                         ha->flags.isp82xx_fw_hung = 0;
4143                         rval = qla82xx_restart_isp(base_vha);
4144                         qla82xx_idc_lock(ha);
4145                         qla82xx_set_drv_active(base_vha);
4146                         qla82xx_idc_unlock(ha);
4147                 }
4148         }
4149         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4150
4151         return rval;
4152 }
4153
4154 static pci_ers_result_t
4155 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4156 {
4157         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4158         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4159         struct qla_hw_data *ha = base_vha->hw;
4160         struct rsp_que *rsp;
4161         int rc, retries = 10;
4162
4163         ql_dbg(ql_dbg_aer, base_vha, 0x9004,
4164             "Slot Reset.\n");
4165
4166         /* Workaround: qla2xxx driver which access hardware earlier
4167          * needs error state to be pci_channel_io_online.
4168          * Otherwise mailbox command timesout.
4169          */
4170         pdev->error_state = pci_channel_io_normal;
4171
4172         pci_restore_state(pdev);
4173
4174         /* pci_restore_state() clears the saved_state flag of the device
4175          * save restored state which resets saved_state flag
4176          */
4177         pci_save_state(pdev);
4178
4179         if (ha->mem_only)
4180                 rc = pci_enable_device_mem(pdev);
4181         else
4182                 rc = pci_enable_device(pdev);
4183
4184         if (rc) {
4185                 ql_log(ql_log_warn, base_vha, 0x9005,
4186                     "Can't re-enable PCI device after reset.\n");
4187                 goto exit_slot_reset;
4188         }
4189
4190         rsp = ha->rsp_q_map[0];
4191         if (qla2x00_request_irqs(ha, rsp))
4192                 goto exit_slot_reset;
4193
4194         if (ha->isp_ops->pci_config(base_vha))
4195                 goto exit_slot_reset;
4196
4197         if (IS_QLA82XX(ha)) {
4198                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4199                         ret = PCI_ERS_RESULT_RECOVERED;
4200                         goto exit_slot_reset;
4201                 } else
4202                         goto exit_slot_reset;
4203         }
4204
4205         while (ha->flags.mbox_busy && retries--)
4206                 msleep(1000);
4207
4208         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4209         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4210                 ret =  PCI_ERS_RESULT_RECOVERED;
4211         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4212
4213
4214 exit_slot_reset:
4215         ql_dbg(ql_dbg_aer, base_vha, 0x900e,
4216             "slot_reset return %x.\n", ret);
4217
4218         return ret;
4219 }
4220
4221 static void
4222 qla2xxx_pci_resume(struct pci_dev *pdev)
4223 {
4224         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4225         struct qla_hw_data *ha = base_vha->hw;
4226         int ret;
4227
4228         ql_dbg(ql_dbg_aer, base_vha, 0x900f,
4229             "pci_resume.\n");
4230
4231         ret = qla2x00_wait_for_hba_online(base_vha);
4232         if (ret != QLA_SUCCESS) {
4233                 ql_log(ql_log_fatal, base_vha, 0x9002,
4234                     "The device failed to resume I/O from slot/link_reset.\n");
4235         }
4236
4237         pci_cleanup_aer_uncorrect_error_status(pdev);
4238
4239         ha->flags.eeh_busy = 0;
4240 }
4241
4242 static struct pci_error_handlers qla2xxx_err_handler = {
4243         .error_detected = qla2xxx_pci_error_detected,
4244         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4245         .slot_reset = qla2xxx_pci_slot_reset,
4246         .resume = qla2xxx_pci_resume,
4247 };
4248
4249 static struct pci_device_id qla2xxx_pci_tbl[] = {
4250         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4251         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4252         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4253         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4254         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4255         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4256         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4257         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4258         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4259         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4260         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4261         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4262         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4263         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4264         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4265         { 0 },
4266 };
4267 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4268
4269 static struct pci_driver qla2xxx_pci_driver = {
4270         .name           = QLA2XXX_DRIVER_NAME,
4271         .driver         = {
4272                 .owner          = THIS_MODULE,
4273         },
4274         .id_table       = qla2xxx_pci_tbl,
4275         .probe          = qla2x00_probe_one,
4276         .remove         = qla2x00_remove_one,
4277         .shutdown       = qla2x00_shutdown,
4278         .err_handler    = &qla2xxx_err_handler,
4279 };
4280
4281 static struct file_operations apidev_fops = {
4282         .owner = THIS_MODULE,
4283         .llseek = noop_llseek,
4284 };
4285
4286 /**
4287  * qla2x00_module_init - Module initialization.
4288  **/
4289 static int __init
4290 qla2x00_module_init(void)
4291 {
4292         int ret = 0;
4293
4294         /* Allocate cache for SRBs. */
4295         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4296             SLAB_HWCACHE_ALIGN, NULL);
4297         if (srb_cachep == NULL) {
4298                 ql_log(ql_log_fatal, NULL, 0x0001,
4299                     "Unable to allocate SRB cache...Failing load!.\n");
4300                 return -ENOMEM;
4301         }
4302
4303         /* Derive version string. */
4304         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4305         if (ql2xextended_error_logging)
4306                 strcat(qla2x00_version_str, "-debug");
4307
4308         qla2xxx_transport_template =
4309             fc_attach_transport(&qla2xxx_transport_functions);
4310         if (!qla2xxx_transport_template) {
4311                 kmem_cache_destroy(srb_cachep);
4312                 ql_log(ql_log_fatal, NULL, 0x0002,
4313                     "fc_attach_transport failed...Failing load!.\n");
4314                 return -ENODEV;
4315         }
4316
4317         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4318         if (apidev_major < 0) {
4319                 ql_log(ql_log_fatal, NULL, 0x0003,
4320                     "Unable to register char device %s.\n", QLA2XXX_APIDEV);
4321         }
4322
4323         qla2xxx_transport_vport_template =
4324             fc_attach_transport(&qla2xxx_transport_vport_functions);
4325         if (!qla2xxx_transport_vport_template) {
4326                 kmem_cache_destroy(srb_cachep);
4327                 fc_release_transport(qla2xxx_transport_template);
4328                 ql_log(ql_log_fatal, NULL, 0x0004,
4329                     "fc_attach_transport vport failed...Failing load!.\n");
4330                 return -ENODEV;
4331         }
4332         ql_log(ql_log_info, NULL, 0x0005,
4333             "QLogic Fibre Channel HBA Driver: %s.\n",
4334             qla2x00_version_str);
4335         ret = pci_register_driver(&qla2xxx_pci_driver);
4336         if (ret) {
4337                 kmem_cache_destroy(srb_cachep);
4338                 fc_release_transport(qla2xxx_transport_template);
4339                 fc_release_transport(qla2xxx_transport_vport_template);
4340                 ql_log(ql_log_fatal, NULL, 0x0006,
4341                     "pci_register_driver failed...ret=%d Failing load!.\n",
4342                     ret);
4343         }
4344         return ret;
4345 }
4346
4347 /**
4348  * qla2x00_module_exit - Module cleanup.
4349  **/
4350 static void __exit
4351 qla2x00_module_exit(void)
4352 {
4353         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4354         pci_unregister_driver(&qla2xxx_pci_driver);
4355         qla2x00_release_firmware();
4356         kmem_cache_destroy(srb_cachep);
4357         if (ctx_cachep)
4358                 kmem_cache_destroy(ctx_cachep);
4359         fc_release_transport(qla2xxx_transport_template);
4360         fc_release_transport(qla2xxx_transport_vport_template);
4361 }
4362
4363 module_init(qla2x00_module_init);
4364 module_exit(qla2x00_module_exit);
4365
4366 MODULE_AUTHOR("QLogic Corporation");
4367 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4368 MODULE_LICENSE("GPL");
4369 MODULE_VERSION(QLA2XXX_VERSION);
4370 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4371 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4372 MODULE_FIRMWARE(FW_FILE_ISP2300);
4373 MODULE_FIRMWARE(FW_FILE_ISP2322);
4374 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4375 MODULE_FIRMWARE(FW_FILE_ISP25XX);