drivers/scsi/lpfc/lpfc_attr.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/ctype.h>
  23 #include <linux/pci.h>
  24 #include <linux/interrupt.h>
  25
  26 #include <scsi/scsi.h>
  27 #include <scsi/scsi_device.h>
  28 #include <scsi/scsi_host.h>
  29 #include <scsi/scsi_tcq.h>
  30 #include <scsi/scsi_transport_fc.h>
  31
  32 #include "lpfc_hw.h"
  33 #include "lpfc_sli.h"
  34 #include "lpfc_disc.h"
  35 #include "lpfc_scsi.h"
  36 #include "lpfc.h"
  37 #include "lpfc_logmsg.h"
  38 #include "lpfc_version.h"
  39 #include "lpfc_compat.h"
  40 #include "lpfc_crtn.h"
  41
  42 #define LPFC_DEF_DEVLOSS_TMO 30
  43 #define LPFC_MIN_DEVLOSS_TMO 1
  44 #define LPFC_MAX_DEVLOSS_TMO 255
  45
  46 static void
  47 lpfc_jedec_to_ascii(int incr, char hdw[])
  48 {
  49         int i, j;
  50         for (i = 0; i < 8; i++) {
  51                 j = (incr & 0xf);
  52                 if (j <= 9)
  53                         hdw[7 - i] = 0x30 +  j;
  54                  else
  55                         hdw[7 - i] = 0x61 + j - 10;
  56                 incr = (incr >> 4);
  57         }
  58         hdw[8] = 0;
  59         return;
  60 }
  61
  62 static ssize_t
  63 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
  64 {
  65         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  66 }
  67
  68 static ssize_t
  69 management_version_show(struct class_device *cdev, char *buf)
  70 {
  71         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
  72 }
  73
  74 static ssize_t
  75 lpfc_info_show(struct class_device *cdev, char *buf)
  76 {
  77         struct Scsi_Host *host = class_to_shost(cdev);
  78         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  79 }
  80
  81 static ssize_t
  82 lpfc_serialnum_show(struct class_device *cdev, char *buf)
  83 {
  84         struct Scsi_Host *host = class_to_shost(cdev);
  85         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
  86         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  87 }
  88
  89 static ssize_t
  90 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  91 {
  92         struct Scsi_Host *host = class_to_shost(cdev);
  93         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
  94         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
  95 }
  96
  97 static ssize_t
  98 lpfc_modelname_show(struct class_device *cdev, char *buf)
  99 {
 100         struct Scsi_Host *host = class_to_shost(cdev);
 101         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 102         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 103 }
 104
 105 static ssize_t
 106 lpfc_programtype_show(struct class_device *cdev, char *buf)
 107 {
 108         struct Scsi_Host *host = class_to_shost(cdev);
 109         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 110         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 111 }
 112
 113 static ssize_t
 114 lpfc_portnum_show(struct class_device *cdev, char *buf)
 115 {
 116         struct Scsi_Host *host = class_to_shost(cdev);
 117         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 118         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 119 }
 120
 121 static ssize_t
 122 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 123 {
 124         struct Scsi_Host *host = class_to_shost(cdev);
 125         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 126         char fwrev[32];
 127         lpfc_decode_firmware_rev(phba, fwrev, 1);
 128         return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
 129 }
 130
 131 static ssize_t
 132 lpfc_hdw_show(struct class_device *cdev, char *buf)
 133 {
 134         char hdw[9];
 135         struct Scsi_Host *host = class_to_shost(cdev);
 136         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 137         lpfc_vpd_t *vp = &phba->vpd;
 138         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 139         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 140 }
 141 static ssize_t
 142 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 143 {
 144         struct Scsi_Host *host = class_to_shost(cdev);
 145         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 146         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 147 }
 148 static ssize_t
 149 lpfc_state_show(struct class_device *cdev, char *buf)
 150 {
 151         struct Scsi_Host *host = class_to_shost(cdev);
 152         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 153         int len = 0;
 154         switch (phba->hba_state) {
 155         case LPFC_STATE_UNKNOWN:
 156         case LPFC_WARM_START:
 157         case LPFC_INIT_START:
 158         case LPFC_INIT_MBX_CMDS:
 159         case LPFC_LINK_DOWN:
 160                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 161                 break;
 162         case LPFC_LINK_UP:
 163         case LPFC_LOCAL_CFG_LINK:
 164                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
 165                 break;
 166         case LPFC_FLOGI:
 167         case LPFC_FABRIC_CFG_LINK:
 168         case LPFC_NS_REG:
 169         case LPFC_NS_QRY:
 170         case LPFC_BUILD_DISC_LIST:
 171         case LPFC_DISC_AUTH:
 172         case LPFC_CLEAR_LA:
 173                 len += snprintf(buf + len, PAGE_SIZE-len,
 174                                 "Link Up - Discovery\n");
 175                 break;
 176         case LPFC_HBA_READY:
 177                 len += snprintf(buf + len, PAGE_SIZE-len,
 178                                 "Link Up - Ready:\n");
 179                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 180                         if (phba->fc_flag & FC_PUBLIC_LOOP)
 181                                 len += snprintf(buf + len, PAGE_SIZE-len,
 182                                                 "   Public Loop\n");
 183                         else
 184                                 len += snprintf(buf + len, PAGE_SIZE-len,
 185                                                 "   Private Loop\n");
 186                 } else {
 187                         if (phba->fc_flag & FC_FABRIC)
 188                                 len += snprintf(buf + len, PAGE_SIZE-len,
 189                                                 "   Fabric\n");
 190                         else
 191                                 len += snprintf(buf + len, PAGE_SIZE-len,
 192                                                 "   Point-2-Point\n");
 193                 }
 194         }
 195         return len;
 196 }
 197
 198 static ssize_t
 199 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 200 {
 201         struct Scsi_Host *host = class_to_shost(cdev);
 202         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 203         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
 204                                                         phba->fc_unmap_cnt);
 205 }
 206
 207
 208 static int
 209 lpfc_issue_lip(struct Scsi_Host *host)
 210 {
 211         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
 212         LPFC_MBOXQ_t *pmboxq;
 213         int mbxstatus = MBXERR_ERROR;
 214
 215         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 216             (phba->hba_state != LPFC_HBA_READY))
 217                 return -EPERM;
 218
 219         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 220
 221         if (!pmboxq)
 222                 return -ENOMEM;
 223
 224         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 225         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 226         pmboxq->mb.mbxOwner = OWN_HOST;
 227
 228         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 229
 230         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 231                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 232                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 233                                phba->cfg_link_speed);
 234                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 235                                                      phba->fc_ratov * 2);
 236         }
 237
 238         if (mbxstatus == MBX_TIMEOUT)
 239                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 240         else
 241                 mempool_free(pmboxq, phba->mbox_mem_pool);
 242
 243         if (mbxstatus == MBXERR_ERROR)
 244                 return -EIO;
 245
 246         return 0;
 247 }
 248
 249 static int
 250 lpfc_selective_reset(struct lpfc_hba *phba)
 251 {
 252         struct completion online_compl;
 253         int status = 0;
 254
 255         init_completion(&online_compl);
 256         lpfc_workq_post_event(phba, &status, &online_compl,
 257                               LPFC_EVT_OFFLINE);
 258         wait_for_completion(&online_compl);
 259
 260         if (status != 0)
 261                 return -EIO;
 262
 263         init_completion(&online_compl);
 264         lpfc_workq_post_event(phba, &status, &online_compl,
 265                               LPFC_EVT_ONLINE);
 266         wait_for_completion(&online_compl);
 267
 268         if (status != 0)
 269                 return -EIO;
 270
 271         return 0;
 272 }
 273
 274 static ssize_t
 275 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 276 {
 277         struct Scsi_Host *host = class_to_shost(cdev);
 278         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 279         int status = -EINVAL;
 280
 281         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 282                 status = lpfc_selective_reset(phba);
 283
 284         if (status == 0)
 285                 return strlen(buf);
 286         else
 287                 return status;
 288 }
 289
 290 static ssize_t
 291 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 292 {
 293         struct Scsi_Host *host = class_to_shost(cdev);
 294         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 295         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 296 }
 297
 298 static ssize_t
 299 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 300 {
 301         struct Scsi_Host *host = class_to_shost(cdev);
 302         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 303         char  * state;
 304
 305         if (phba->hba_state == LPFC_HBA_ERROR)
 306                 state = "error";
 307         else if (phba->hba_state == LPFC_WARM_START)
 308                 state = "warm start";
 309         else if (phba->hba_state == LPFC_INIT_START)
 310                 state = "offline";
 311         else
 312                 state = "online";
 313
 314         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 315 }
 316
 317 static ssize_t
 318 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 319 {
 320         struct Scsi_Host *host = class_to_shost(cdev);
 321         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 322         struct completion online_compl;
 323         int status=0;
 324
 325         init_completion(&online_compl);
 326
 327         if(strncmp(buf, "online", sizeof("online") - 1) == 0)
 328                 lpfc_workq_post_event(phba, &status, &online_compl,
 329                                       LPFC_EVT_ONLINE);
 330         else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 331                 lpfc_workq_post_event(phba, &status, &online_compl,
 332                                       LPFC_EVT_OFFLINE);
 333         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 334                 lpfc_workq_post_event(phba, &status, &online_compl,
 335                                       LPFC_EVT_WARM_START);
 336         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 337                 lpfc_workq_post_event(phba, &status, &online_compl,
 338                                       LPFC_EVT_KILL);
 339         else
 340                 return -EINVAL;
 341
 342         wait_for_completion(&online_compl);
 343
 344         if (!status)
 345                 return strlen(buf);
 346         else
 347                 return -EIO;
 348 }
 349
 350 static ssize_t
 351 lpfc_poll_show(struct class_device *cdev, char *buf)
 352 {
 353         struct Scsi_Host *host = class_to_shost(cdev);
 354         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 355
 356         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 357 }
 358
 359 static ssize_t
 360 lpfc_poll_store(struct class_device *cdev, const char *buf,
 361                 size_t count)
 362 {
 363         struct Scsi_Host *host = class_to_shost(cdev);
 364         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 365         uint32_t creg_val;
 366         uint32_t old_val;
 367         int val=0;
 368
 369         if (!isdigit(buf[0]))
 370                 return -EINVAL;
 371
 372         if (sscanf(buf, "%i", &val) != 1)
 373                 return -EINVAL;
 374
 375         if ((val & 0x3) != val)
 376                 return -EINVAL;
 377
 378         spin_lock_irq(phba->host->host_lock);
 379
 380         old_val = phba->cfg_poll;
 381
 382         if (val & ENABLE_FCP_RING_POLLING) {
 383                 if ((val & DISABLE_FCP_RING_INT) &&
 384                     !(old_val & DISABLE_FCP_RING_INT)) {
 385                         creg_val = readl(phba->HCregaddr);
 386                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 387                         writel(creg_val, phba->HCregaddr);
 388                         readl(phba->HCregaddr); /* flush */
 389
 390                         lpfc_poll_start_timer(phba);
 391                 }
 392         } else if (val != 0x0) {
 393                 spin_unlock_irq(phba->host->host_lock);
 394                 return -EINVAL;
 395         }
 396
 397         if (!(val & DISABLE_FCP_RING_INT) &&
 398             (old_val & DISABLE_FCP_RING_INT))
 399         {
 400                 spin_unlock_irq(phba->host->host_lock);
 401                 del_timer(&phba->fcp_poll_timer);
 402                 spin_lock_irq(phba->host->host_lock);
 403                 creg_val = readl(phba->HCregaddr);
 404                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 405                 writel(creg_val, phba->HCregaddr);
 406                 readl(phba->HCregaddr); /* flush */
 407         }
 408
 409         phba->cfg_poll = val;
 410
 411         spin_unlock_irq(phba->host->host_lock);
 412
 413         return strlen(buf);
 414 }
 415
 416 #define lpfc_param_show(attr)   \
 417 static ssize_t \
 418 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 419 { \
 420         struct Scsi_Host *host = class_to_shost(cdev);\
 421         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 422         int val = 0;\
 423         val = phba->cfg_##attr;\
 424         return snprintf(buf, PAGE_SIZE, "%d\n",\
 425                         phba->cfg_##attr);\
 426 }
 427
 428 #define lpfc_param_hex_show(attr)       \
 429 static ssize_t \
 430 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 431 { \
 432         struct Scsi_Host *host = class_to_shost(cdev);\
 433         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 434         int val = 0;\
 435         val = phba->cfg_##attr;\
 436         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 437                         phba->cfg_##attr);\
 438 }
 439
 440 #define lpfc_param_init(attr, default, minval, maxval)  \
 441 static int \
 442 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 443 { \
 444         if (val >= minval && val <= maxval) {\
 445                 phba->cfg_##attr = val;\
 446                 return 0;\
 447         }\
 448         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 449                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 450                         "allowed range is ["#minval", "#maxval"]\n", \
 451                         phba->brd_no, val); \
 452         phba->cfg_##attr = default;\
 453         return -EINVAL;\
 454 }
 455
 456 #define lpfc_param_set(attr, default, minval, maxval)   \
 457 static int \
 458 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 459 { \
 460         if (val >= minval && val <= maxval) {\
 461                 phba->cfg_##attr = val;\
 462                 return 0;\
 463         }\
 464         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 465                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 466                         "allowed range is ["#minval", "#maxval"]\n", \
 467                         phba->brd_no, val); \
 468         return -EINVAL;\
 469 }
 470
 471 #define lpfc_param_store(attr)  \
 472 static ssize_t \
 473 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 474 { \
 475         struct Scsi_Host *host = class_to_shost(cdev);\
 476         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 477         int val=0;\
 478         if (!isdigit(buf[0]))\
 479                 return -EINVAL;\
 480         if (sscanf(buf, "%i", &val) != 1)\
 481                 return -EINVAL;\
 482         if (lpfc_##attr##_set(phba, val) == 0) \
 483                 return strlen(buf);\
 484         else \
 485                 return -EINVAL;\
 486 }
 487
 488 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 489 static int lpfc_##name = defval;\
 490 module_param(lpfc_##name, int, 0);\
 491 MODULE_PARM_DESC(lpfc_##name, desc);\
 492 lpfc_param_init(name, defval, minval, maxval)
 493
 494 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 495 static int lpfc_##name = defval;\
 496 module_param(lpfc_##name, int, 0);\
 497 MODULE_PARM_DESC(lpfc_##name, desc);\
 498 lpfc_param_show(name)\
 499 lpfc_param_init(name, defval, minval, maxval)\
 500 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 501
 502 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 503 static int lpfc_##name = defval;\
 504 module_param(lpfc_##name, int, 0);\
 505 MODULE_PARM_DESC(lpfc_##name, desc);\
 506 lpfc_param_show(name)\
 507 lpfc_param_init(name, defval, minval, maxval)\
 508 lpfc_param_set(name, defval, minval, maxval)\
 509 lpfc_param_store(name)\
 510 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 511                          lpfc_##name##_show, lpfc_##name##_store)
 512
 513 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 514 static int lpfc_##name = defval;\
 515 module_param(lpfc_##name, int, 0);\
 516 MODULE_PARM_DESC(lpfc_##name, desc);\
 517 lpfc_param_hex_show(name)\
 518 lpfc_param_init(name, defval, minval, maxval)\
 519 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 520
 521 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 522 static int lpfc_##name = defval;\
 523 module_param(lpfc_##name, int, 0);\
 524 MODULE_PARM_DESC(lpfc_##name, desc);\
 525 lpfc_param_hex_show(name)\
 526 lpfc_param_init(name, defval, minval, maxval)\
 527 lpfc_param_set(name, defval, minval, maxval)\
 528 lpfc_param_store(name)\
 529 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 530                          lpfc_##name##_show, lpfc_##name##_store)
 531
 532 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 533 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 534 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 535 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 536 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 537 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
 538 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 539 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 540 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 541 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 542                                         lpfc_option_rom_version_show, NULL);
 543 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 544                                         lpfc_num_discovered_ports_show, NULL);
 545 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 546 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 547                          NULL);
 548 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 549                          NULL);
 550 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 551                          lpfc_board_mode_show, lpfc_board_mode_store);
 552 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 553
 554
 555 static char *lpfc_soft_wwpn_key = "C99G71SL8032A";
 556
 557 static ssize_t
 558 lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
 559                                 size_t count)
 560 {
 561         struct Scsi_Host *host = class_to_shost(cdev);
 562         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 563         unsigned int cnt = count;
 564
 565         /*
 566          * We're doing a simple sanity check for soft_wwpn setting.
 567          * We require that the user write a specific key to enable
 568          * the soft_wwpn attribute to be settable. Once the attribute
 569          * is written, the enable key resets. If further updates are
 570          * desired, the key must be written again to re-enable the
 571          * attribute.
 572          *
 573          * The "key" is not secret - it is a hardcoded string shown
 574          * here. The intent is to protect against the random user or
 575          * application that is just writing attributes.
 576          */
 577
 578         /* count may include a LF at end of string */
 579         if (buf[cnt-1] == '\n')
 580                 cnt--;
 581
 582         if ((cnt != strlen(lpfc_soft_wwpn_key)) ||
 583             (strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0))
 584                 return -EINVAL;
 585
 586         phba->soft_wwpn_enable = 1;
 587         return count;
 588 }
 589 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL,
 590                                 lpfc_soft_wwpn_enable_store);
 591
 592 static ssize_t
 593 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 594 {
 595         struct Scsi_Host *host = class_to_shost(cdev);
 596         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 597         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 598                         (unsigned long long)phba->cfg_soft_wwpn);
 599 }
 600
 601
 602 static ssize_t
 603 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 604 {
 605         struct Scsi_Host *host = class_to_shost(cdev);
 606         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 607         struct completion online_compl;
 608         int stat1=0, stat2=0;
 609         unsigned int i, j, cnt=count;
 610         u8 wwpn[8];
 611
 612         /* count may include a LF at end of string */
 613         if (buf[cnt-1] == '\n')
 614                 cnt--;
 615
 616         if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
 617             ((cnt == 17) && (*buf++ != 'x')) ||
 618             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 619                 return -EINVAL;
 620
 621         phba->soft_wwpn_enable = 0;
 622
 623         memset(wwpn, 0, sizeof(wwpn));
 624
 625         /* Validate and store the new name */
 626         for (i=0, j=0; i < 16; i++) {
 627                 if ((*buf >= 'a') && (*buf <= 'f'))
 628                         j = ((j << 4) | ((*buf++ -'a') + 10));
 629                 else if ((*buf >= 'A') && (*buf <= 'F'))
 630                         j = ((j << 4) | ((*buf++ -'A') + 10));
 631                 else if ((*buf >= '0') && (*buf <= '9'))
 632                         j = ((j << 4) | (*buf++ -'0'));
 633                 else
 634                         return -EINVAL;
 635                 if (i % 2) {
 636                         wwpn[i/2] = j & 0xff;
 637                         j = 0;
 638                 }
 639         }
 640         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
 641         fc_host_port_name(host) = phba->cfg_soft_wwpn;
 642
 643         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
 644                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
 645
 646         init_completion(&online_compl);
 647         lpfc_workq_post_event(phba, &stat1, &online_compl, LPFC_EVT_OFFLINE);
 648         wait_for_completion(&online_compl);
 649         if (stat1)
 650                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 651                         "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
 652                         "adapter - %d\n", phba->brd_no, stat1);
 653
 654         init_completion(&online_compl);
 655         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
 656         wait_for_completion(&online_compl);
 657         if (stat2)
 658                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 659                         "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
 660                         "adapter - %d\n", phba->brd_no, stat2);
 661
 662         return (stat1 || stat2) ? -EIO : count;
 663 }
 664 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
 665                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
 666
 667
 668 static int lpfc_poll = 0;
 669 module_param(lpfc_poll, int, 0);
 670 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 671                  " 0 - none,"
 672                  " 1 - poll with interrupts enabled"
 673                  " 3 - poll and disable FCP ring interrupts");
 674
 675 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 676                          lpfc_poll_show, lpfc_poll_store);
 677
 678 /*
 679 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 680 # until the timer expires. Value range is [0,255]. Default value is 30.
 681 */
 682 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
 683 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
 684 module_param(lpfc_nodev_tmo, int, 0);
 685 MODULE_PARM_DESC(lpfc_nodev_tmo,
 686                  "Seconds driver will hold I/O waiting "
 687                  "for a device to come back");
 688 static ssize_t
 689 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
 690 {
 691         struct Scsi_Host *host = class_to_shost(cdev);
 692         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 693         int val = 0;
 694         val = phba->cfg_devloss_tmo;
 695         return snprintf(buf, PAGE_SIZE, "%d\n",
 696                         phba->cfg_devloss_tmo);
 697 }
 698
 699 static int
 700 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
 701 {
 702         static int warned;
 703         if (phba->cfg_devloss_tmo !=  LPFC_DEF_DEVLOSS_TMO) {
 704                 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
 705                 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
 706                         warned = 1;
 707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 708                                         "%d:0402 Ignoring nodev_tmo module "
 709                                         "parameter because devloss_tmo is"
 710                                         " set.\n",
 711                                         phba->brd_no);
 712                 }
 713                 return 0;
 714         }
 715
 716         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 717                 phba->cfg_nodev_tmo = val;
 718                 phba->cfg_devloss_tmo = val;
 719                 return 0;
 720         }
 721         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 722                         "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
 723                         "allowed range is [%d, %d]\n",
 724                         phba->brd_no, val,
 725                         LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
 726         phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
 727         return -EINVAL;
 728 }
 729
 730 static int
 731 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
 732 {
 733         if (phba->dev_loss_tmo_changed ||
 734                 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
 735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 736                                 "%d:0401 Ignoring change to nodev_tmo "
 737                                 "because devloss_tmo is set.\n",
 738                                 phba->brd_no);
 739                 return 0;
 740         }
 741
 742         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 743                 phba->cfg_nodev_tmo = val;
 744                 phba->cfg_devloss_tmo = val;
 745                 return 0;
 746         }
 747
 748         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 749                         "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
 750                         "allowed range is [%d, %d]\n",
 751                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
 752                         LPFC_MAX_DEVLOSS_TMO);
 753         return -EINVAL;
 754 }
 755
 756 lpfc_param_store(nodev_tmo)
 757
 758 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
 759                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
 760
 761 /*
 762 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
 763 # disappear until the timer expires. Value range is [0,255]. Default
 764 # value is 30.
 765 */
 766 module_param(lpfc_devloss_tmo, int, 0);
 767 MODULE_PARM_DESC(lpfc_devloss_tmo,
 768                  "Seconds driver will hold I/O waiting "
 769                  "for a device to come back");
 770 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
 771                 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
 772 lpfc_param_show(devloss_tmo)
 773 static int
 774 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
 775 {
 776         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 777                 phba->cfg_nodev_tmo = val;
 778                 phba->cfg_devloss_tmo = val;
 779                 phba->dev_loss_tmo_changed = 1;
 780                 return 0;
 781         }
 782
 783         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 784                         "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
 785                         " %d, allowed range is [%d, %d]\n",
 786                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
 787                         LPFC_MAX_DEVLOSS_TMO);
 788         return -EINVAL;
 789 }
 790
 791 lpfc_param_store(devloss_tmo)
 792 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
 793         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
 794
 795 /*
 796 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 797 # deluged with LOTS of information.
 798 # You can set a bit mask to record specific types of verbose messages:
 799 #
 800 # LOG_ELS                       0x1        ELS events
 801 # LOG_DISCOVERY                 0x2        Link discovery events
 802 # LOG_MBOX                      0x4        Mailbox events
 803 # LOG_INIT                      0x8        Initialization events
 804 # LOG_LINK_EVENT                0x10       Link events
 805 # LOG_IP                        0x20       IP traffic history
 806 # LOG_FCP                       0x40       FCP traffic history
 807 # LOG_NODE                      0x80       Node table events
 808 # LOG_MISC                      0x400      Miscellaneous events
 809 # LOG_SLI                       0x800      SLI events
 810 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 811 # LOG_LIBDFC                    0x2000     LIBDFC events
 812 # LOG_ALL_MSG                   0xffff     LOG all messages
 813 */
 814 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 815
 816 /*
 817 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 818 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 819 */
 820 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 821             "Max number of FCP commands we can queue to a specific LUN");
 822
 823 /*
 824 # hba_queue_depth:  This parameter is used to limit the number of outstanding
 825 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
 826 # value is greater than the maximum number of exchanges supported by the HBA,
 827 # then maximum number of exchanges supported by the HBA is used to determine
 828 # the hba_queue_depth.
 829 */
 830 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
 831             "Max number of FCP commands we can queue to a lpfc HBA");
 832
 833 /*
 834 # Some disk devices have a "select ID" or "select Target" capability.
 835 # From a protocol standpoint "select ID" usually means select the
 836 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 837 # annex" which contains a table that maps a "select ID" (a number
 838 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 839 # older drivers, the lpfc driver scans this table from low ALPA to high
 840 # ALPA.
 841 #
 842 # Turning on the scan-down variable (on  = 1, off = 0) will
 843 # cause the lpfc driver to use an inverted table, effectively
 844 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 845 #
 846 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 847 # and will not work across a fabric. Also this parameter will take
 848 # effect only in the case when ALPA map is not available.)
 849 */
 850 LPFC_ATTR_R(scan_down, 1, 0, 1,
 851              "Start scanning for devices from highest ALPA to lowest");
 852
 853 /*
 854 # lpfc_topology:  link topology for init link
 855 #            0x0  = attempt loop mode then point-to-point
 856 #            0x01 = internal loopback mode
 857 #            0x02 = attempt point-to-point mode only
 858 #            0x04 = attempt loop mode only
 859 #            0x06 = attempt point-to-point mode then loop
 860 # Set point-to-point mode if you want to run as an N_Port.
 861 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 862 # Default value is 0.
 863 */
 864 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
 865
 866 /*
 867 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 868 # connection.
 869 #       0  = auto select (default)
 870 #       1  = 1 Gigabaud
 871 #       2  = 2 Gigabaud
 872 #       4  = 4 Gigabaud
 873 # Value range is [0,4]. Default value is 0.
 874 */
 875 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 876
 877 /*
 878 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 879 # Value range is [2,3]. Default value is 3.
 880 */
 881 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 882              "Select Fibre Channel class of service for FCP sequences");
 883
 884 /*
 885 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 886 # is [0,1]. Default value is 0.
 887 */
 888 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 889              "Use ADISC on rediscovery to authenticate FCP devices");
 890
 891 /*
 892 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 893 # range is [0,1]. Default value is 0.
 894 */
 895 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 896
 897 /*
 898 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 899 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 900 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 901 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 902 # cr_delay is set to 0.
 903 */
 904 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
 905                 "interrupt response is generated");
 906
 907 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
 908                 "interrupt response is generated");
 909
 910 /*
 911 # lpfc_multi_ring_support:  Determines how many rings to spread available
 912 # cmd/rsp IOCB entries across.
 913 # Value range is [1,2]. Default value is 1.
 914 */
 915 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
 916                 "SLI rings to spread IOCB entries across");
 917
 918 /*
 919 # lpfc_fdmi_on: controls FDMI support.
 920 #       0 = no FDMI support
 921 #       1 = support FDMI without attribute of hostname
 922 #       2 = support FDMI with attribute of hostname
 923 # Value range [0,2]. Default value is 0.
 924 */
 925 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 926
 927 /*
 928 # Specifies the maximum number of ELS cmds we can have outstanding (for
 929 # discovery). Value range is [1,64]. Default value = 32.
 930 */
 931 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
 932                  "during discovery");
 933
 934 /*
 935 # lpfc_max_luns: maximum allowed LUN.
 936 # Value range is [0,65535]. Default value is 255.
 937 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
 938 */
 939 LPFC_ATTR_R(max_luns, 255, 0, 65535,
 940              "Maximum allowed LUN");
 941
 942 /*
 943 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
 944 # Value range is [1,255], default value is 10.
 945 */
 946 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 947              "Milliseconds driver will wait between polling FCP ring");
 948
 949
 950 struct class_device_attribute *lpfc_host_attrs[] = {
 951         &class_device_attr_info,
 952         &class_device_attr_serialnum,
 953         &class_device_attr_modeldesc,
 954         &class_device_attr_modelname,
 955         &class_device_attr_programtype,
 956         &class_device_attr_portnum,
 957         &class_device_attr_fwrev,
 958         &class_device_attr_hdw,
 959         &class_device_attr_option_rom_version,
 960         &class_device_attr_state,
 961         &class_device_attr_num_discovered_ports,
 962         &class_device_attr_lpfc_drvr_version,
 963         &class_device_attr_lpfc_log_verbose,
 964         &class_device_attr_lpfc_lun_queue_depth,
 965         &class_device_attr_lpfc_hba_queue_depth,
 966         &class_device_attr_lpfc_nodev_tmo,
 967         &class_device_attr_lpfc_devloss_tmo,
 968         &class_device_attr_lpfc_fcp_class,
 969         &class_device_attr_lpfc_use_adisc,
 970         &class_device_attr_lpfc_ack0,
 971         &class_device_attr_lpfc_topology,
 972         &class_device_attr_lpfc_scan_down,
 973         &class_device_attr_lpfc_link_speed,
 974         &class_device_attr_lpfc_cr_delay,
 975         &class_device_attr_lpfc_cr_count,
 976         &class_device_attr_lpfc_multi_ring_support,
 977         &class_device_attr_lpfc_fdmi_on,
 978         &class_device_attr_lpfc_max_luns,
 979         &class_device_attr_nport_evt_cnt,
 980         &class_device_attr_management_version,
 981         &class_device_attr_board_mode,
 982         &class_device_attr_issue_reset,
 983         &class_device_attr_lpfc_poll,
 984         &class_device_attr_lpfc_poll_tmo,
 985         &class_device_attr_lpfc_soft_wwpn,
 986         &class_device_attr_lpfc_soft_wwpn_enable,
 987         NULL,
 988 };
 989
 990 static ssize_t
 991 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 992 {
 993         size_t buf_off;
 994         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 995                                              struct class_device, kobj));
 996         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 997
 998         if ((off + count) > FF_REG_AREA_SIZE)
 999                 return -ERANGE;
1000
1001         if (count == 0) return 0;
1002
1003         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1004                 return -EINVAL;
1005
1006         spin_lock_irq(phba->host->host_lock);
1007
1008         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1009                 spin_unlock_irq(phba->host->host_lock);
1010                 return -EPERM;
1011         }
1012
1013         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1014                 writel(*((uint32_t *)(buf + buf_off)),
1015                        phba->ctrl_regs_memmap_p + off + buf_off);
1016
1017         spin_unlock_irq(phba->host->host_lock);
1018
1019         return count;
1020 }
1021
1022 static ssize_t
1023 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1024 {
1025         size_t buf_off;
1026         uint32_t * tmp_ptr;
1027         struct Scsi_Host *host = class_to_shost(container_of(kobj,
1028                                              struct class_device, kobj));
1029         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1030
1031         if (off > FF_REG_AREA_SIZE)
1032                 return -ERANGE;
1033
1034         if ((off + count) > FF_REG_AREA_SIZE)
1035                 count = FF_REG_AREA_SIZE - off;
1036
1037         if (count == 0) return 0;
1038
1039         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1040                 return -EINVAL;
1041
1042         spin_lock_irq(phba->host->host_lock);
1043
1044         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1045                 tmp_ptr = (uint32_t *)(buf + buf_off);
1046                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1047         }
1048
1049         spin_unlock_irq(phba->host->host_lock);
1050
1051         return count;
1052 }
1053
1054 static struct bin_attribute sysfs_ctlreg_attr = {
1055         .attr = {
1056                 .name = "ctlreg",
1057                 .mode = S_IRUSR | S_IWUSR,
1058                 .owner = THIS_MODULE,
1059         },
1060         .size = 256,
1061         .read = sysfs_ctlreg_read,
1062         .write = sysfs_ctlreg_write,
1063 };
1064
1065
1066 static void
1067 sysfs_mbox_idle (struct lpfc_hba * phba)
1068 {
1069         phba->sysfs_mbox.state = SMBOX_IDLE;
1070         phba->sysfs_mbox.offset = 0;
1071
1072         if (phba->sysfs_mbox.mbox) {
1073                 mempool_free(phba->sysfs_mbox.mbox,
1074                              phba->mbox_mem_pool);
1075                 phba->sysfs_mbox.mbox = NULL;
1076         }
1077 }
1078
1079 static ssize_t
1080 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1081 {
1082         struct Scsi_Host * host =
1083                 class_to_shost(container_of(kobj, struct class_device, kobj));
1084         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
1085         struct lpfcMboxq * mbox = NULL;
1086
1087         if ((count + off) > MAILBOX_CMD_SIZE)
1088                 return -ERANGE;
1089
1090         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1091                 return -EINVAL;
1092
1093         if (count == 0)
1094                 return 0;
1095
1096         if (off == 0) {
1097                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1098                 if (!mbox)
1099                         return -ENOMEM;
1100                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1101         }
1102
1103         spin_lock_irq(host->host_lock);
1104
1105         if (off == 0) {
1106                 if (phba->sysfs_mbox.mbox)
1107                         mempool_free(mbox, phba->mbox_mem_pool);
1108                 else
1109                         phba->sysfs_mbox.mbox = mbox;
1110                 phba->sysfs_mbox.state = SMBOX_WRITING;
1111         } else {
1112                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1113                     phba->sysfs_mbox.offset != off           ||
1114                     phba->sysfs_mbox.mbox   == NULL ) {
1115                         sysfs_mbox_idle(phba);
1116                         spin_unlock_irq(host->host_lock);
1117                         return -EAGAIN;
1118                 }
1119         }
1120
1121         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1122                buf, count);
1123
1124         phba->sysfs_mbox.offset = off + count;
1125
1126         spin_unlock_irq(host->host_lock);
1127
1128         return count;
1129 }
1130
1131 static ssize_t
1132 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1133 {
1134         struct Scsi_Host *host =
1135                 class_to_shost(container_of(kobj, struct class_device,
1136                                             kobj));
1137         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1138         int rc;
1139
1140         if (off > sizeof(MAILBOX_t))
1141                 return -ERANGE;
1142
1143         if ((count + off) > sizeof(MAILBOX_t))
1144                 count = sizeof(MAILBOX_t) - off;
1145
1146         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1147                 return -EINVAL;
1148
1149         if (off && count == 0)
1150                 return 0;
1151
1152         spin_lock_irq(phba->host->host_lock);
1153
1154         if (off == 0 &&
1155             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1156             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1157
1158                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1159                         /* Offline only */
1160                 case MBX_WRITE_NV:
1161                 case MBX_INIT_LINK:
1162                 case MBX_DOWN_LINK:
1163                 case MBX_CONFIG_LINK:
1164                 case MBX_CONFIG_RING:
1165                 case MBX_RESET_RING:
1166                 case MBX_UNREG_LOGIN:
1167                 case MBX_CLEAR_LA:
1168                 case MBX_DUMP_CONTEXT:
1169                 case MBX_RUN_DIAGS:
1170                 case MBX_RESTART:
1171                 case MBX_FLASH_WR_ULA:
1172                 case MBX_SET_MASK:
1173                 case MBX_SET_SLIM:
1174                 case MBX_SET_DEBUG:
1175                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1176                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1177                                        "is illegal in on-line state\n",
1178                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1179                                 sysfs_mbox_idle(phba);
1180                                 spin_unlock_irq(phba->host->host_lock);
1181                                 return -EPERM;
1182                         }
1183                 case MBX_LOAD_SM:
1184                 case MBX_READ_NV:
1185                 case MBX_READ_CONFIG:
1186                 case MBX_READ_RCONFIG:
1187                 case MBX_READ_STATUS:
1188                 case MBX_READ_XRI:
1189                 case MBX_READ_REV:
1190                 case MBX_READ_LNK_STAT:
1191                 case MBX_DUMP_MEMORY:
1192                 case MBX_DOWN_LOAD:
1193                 case MBX_UPDATE_CFG:
1194                 case MBX_KILL_BOARD:
1195                 case MBX_LOAD_AREA:
1196                 case MBX_LOAD_EXP_ROM:
1197                 case MBX_BEACON:
1198                 case MBX_DEL_LD_ENTRY:
1199                         break;
1200                 case MBX_READ_SPARM64:
1201                 case MBX_READ_LA:
1202                 case MBX_READ_LA64:
1203                 case MBX_REG_LOGIN:
1204                 case MBX_REG_LOGIN64:
1205                 case MBX_CONFIG_PORT:
1206                 case MBX_RUN_BIU_DIAG:
1207                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1208                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1209                         sysfs_mbox_idle(phba);
1210                         spin_unlock_irq(phba->host->host_lock);
1211                         return -EPERM;
1212                 default:
1213                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1214                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1215                         sysfs_mbox_idle(phba);
1216                         spin_unlock_irq(phba->host->host_lock);
1217                         return -EPERM;
1218                 }
1219
1220                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1221                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1222
1223                         spin_unlock_irq(phba->host->host_lock);
1224                         rc = lpfc_sli_issue_mbox (phba,
1225                                                   phba->sysfs_mbox.mbox,
1226                                                   MBX_POLL);
1227                         spin_lock_irq(phba->host->host_lock);
1228
1229                 } else {
1230                         spin_unlock_irq(phba->host->host_lock);
1231                         rc = lpfc_sli_issue_mbox_wait (phba,
1232                                                        phba->sysfs_mbox.mbox,
1233                                 lpfc_mbox_tmo_val(phba,
1234                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1235                         spin_lock_irq(phba->host->host_lock);
1236                 }
1237
1238                 if (rc != MBX_SUCCESS) {
1239                         sysfs_mbox_idle(phba);
1240                         spin_unlock_irq(host->host_lock);
1241                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1242                 }
1243                 phba->sysfs_mbox.state = SMBOX_READING;
1244         }
1245         else if (phba->sysfs_mbox.offset != off ||
1246                  phba->sysfs_mbox.state  != SMBOX_READING) {
1247                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1248                 sysfs_mbox_idle(phba);
1249                 spin_unlock_irq(host->host_lock);
1250                 return -EAGAIN;
1251         }
1252
1253         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1254
1255         phba->sysfs_mbox.offset = off + count;
1256
1257         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1258                 sysfs_mbox_idle(phba);
1259
1260         spin_unlock_irq(phba->host->host_lock);
1261
1262         return count;
1263 }
1264
1265 static struct bin_attribute sysfs_mbox_attr = {
1266         .attr = {
1267                 .name = "mbox",
1268                 .mode = S_IRUSR | S_IWUSR,
1269                 .owner = THIS_MODULE,
1270         },
1271         .size = sizeof(MAILBOX_t),
1272         .read = sysfs_mbox_read,
1273         .write = sysfs_mbox_write,
1274 };
1275
1276 int
1277 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1278 {
1279         struct Scsi_Host *host = phba->host;
1280         int error;
1281
1282         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1283                                                         &sysfs_ctlreg_attr);
1284         if (error)
1285                 goto out;
1286
1287         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1288                                                         &sysfs_mbox_attr);
1289         if (error)
1290                 goto out_remove_ctlreg_attr;
1291
1292         return 0;
1293 out_remove_ctlreg_attr:
1294         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1295 out:
1296         return error;
1297 }
1298
1299 void
1300 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1301 {
1302         struct Scsi_Host *host = phba->host;
1303
1304         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1305         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1306 }
1307
1308
1309 /*
1310  * Dynamic FC Host Attributes Support
1311  */
1312
1313 static void
1314 lpfc_get_host_port_id(struct Scsi_Host *shost)
1315 {
1316         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1317         /* note: fc_myDID already in cpu endianness */
1318         fc_host_port_id(shost) = phba->fc_myDID;
1319 }
1320
1321 static void
1322 lpfc_get_host_port_type(struct Scsi_Host *shost)
1323 {
1324         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1325
1326         spin_lock_irq(shost->host_lock);
1327
1328         if (phba->hba_state == LPFC_HBA_READY) {
1329                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1330                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1331                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1332                         else
1333                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1334                 } else {
1335                         if (phba->fc_flag & FC_FABRIC)
1336                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1337                         else
1338                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1339                 }
1340         } else
1341                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1342
1343         spin_unlock_irq(shost->host_lock);
1344 }
1345
1346 static void
1347 lpfc_get_host_port_state(struct Scsi_Host *shost)
1348 {
1349         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1350
1351         spin_lock_irq(shost->host_lock);
1352
1353         if (phba->fc_flag & FC_OFFLINE_MODE)
1354                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1355         else {
1356                 switch (phba->hba_state) {
1357                 case LPFC_STATE_UNKNOWN:
1358                 case LPFC_WARM_START:
1359                 case LPFC_INIT_START:
1360                 case LPFC_INIT_MBX_CMDS:
1361                 case LPFC_LINK_DOWN:
1362                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1363                         break;
1364                 case LPFC_LINK_UP:
1365                 case LPFC_LOCAL_CFG_LINK:
1366                 case LPFC_FLOGI:
1367                 case LPFC_FABRIC_CFG_LINK:
1368                 case LPFC_NS_REG:
1369                 case LPFC_NS_QRY:
1370                 case LPFC_BUILD_DISC_LIST:
1371                 case LPFC_DISC_AUTH:
1372                 case LPFC_CLEAR_LA:
1373                 case LPFC_HBA_READY:
1374                         /* Links up, beyond this port_type reports state */
1375                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1376                         break;
1377                 case LPFC_HBA_ERROR:
1378                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1379                         break;
1380                 default:
1381                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1382                         break;
1383                 }
1384         }
1385
1386         spin_unlock_irq(shost->host_lock);
1387 }
1388
1389 static void
1390 lpfc_get_host_speed(struct Scsi_Host *shost)
1391 {
1392         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1393
1394         spin_lock_irq(shost->host_lock);
1395
1396         if (phba->hba_state == LPFC_HBA_READY) {
1397                 switch(phba->fc_linkspeed) {
1398                         case LA_1GHZ_LINK:
1399                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1400                         break;
1401                         case LA_2GHZ_LINK:
1402                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1403                         break;
1404                         case LA_4GHZ_LINK:
1405                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1406                         break;
1407                         default:
1408                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1409                         break;
1410                 }
1411         }
1412
1413         spin_unlock_irq(shost->host_lock);
1414 }
1415
1416 static void
1417 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1418 {
1419         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1420         u64 node_name;
1421
1422         spin_lock_irq(shost->host_lock);
1423
1424         if ((phba->fc_flag & FC_FABRIC) ||
1425             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1426              (phba->fc_flag & FC_PUBLIC_LOOP)))
1427                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1428         else
1429                 /* fabric is local port if there is no F/FL_Port */
1430                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1431
1432         spin_unlock_irq(shost->host_lock);
1433
1434         fc_host_fabric_name(shost) = node_name;
1435 }
1436
1437 static void
1438 lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
1439 {
1440         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1441
1442         spin_lock_irq(shost->host_lock);
1443         lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
1444         spin_unlock_irq(shost->host_lock);
1445 }
1446
1447 static struct fc_host_statistics *
1448 lpfc_get_stats(struct Scsi_Host *shost)
1449 {
1450         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1451         struct lpfc_sli *psli = &phba->sli;
1452         struct fc_host_statistics *hs = &phba->link_stats;
1453         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1454         LPFC_MBOXQ_t *pmboxq;
1455         MAILBOX_t *pmb;
1456         unsigned long seconds;
1457         int rc = 0;
1458
1459         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1460         if (!pmboxq)
1461                 return NULL;
1462         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1463
1464         pmb = &pmboxq->mb;
1465         pmb->mbxCommand = MBX_READ_STATUS;
1466         pmb->mbxOwner = OWN_HOST;
1467         pmboxq->context1 = NULL;
1468
1469         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1470                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1471                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1472         else
1473                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1474
1475         if (rc != MBX_SUCCESS) {
1476                 if (rc == MBX_TIMEOUT)
1477                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1478                 else
1479                         mempool_free(pmboxq, phba->mbox_mem_pool);
1480                 return NULL;
1481         }
1482
1483         memset(hs, 0, sizeof (struct fc_host_statistics));
1484
1485         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1486         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1487         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1488         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1489
1490         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1491         pmb->mbxCommand = MBX_READ_LNK_STAT;
1492         pmb->mbxOwner = OWN_HOST;
1493         pmboxq->context1 = NULL;
1494
1495         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1496             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1497                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1498         else
1499                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1500
1501         if (rc != MBX_SUCCESS) {
1502                 if (rc == MBX_TIMEOUT)
1503                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1504                 else
1505                         mempool_free( pmboxq, phba->mbox_mem_pool);
1506                 return NULL;
1507         }
1508
1509         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1510         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1511         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1512         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1513         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1514         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1515         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1516
1517         hs->link_failure_count -= lso->link_failure_count;
1518         hs->loss_of_sync_count -= lso->loss_of_sync_count;
1519         hs->loss_of_signal_count -= lso->loss_of_signal_count;
1520         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1521         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1522         hs->invalid_crc_count -= lso->invalid_crc_count;
1523         hs->error_frames -= lso->error_frames;
1524
1525         if (phba->fc_topology == TOPOLOGY_LOOP) {
1526                 hs->lip_count = (phba->fc_eventTag >> 1);
1527                 hs->lip_count -= lso->link_events;
1528                 hs->nos_count = -1;
1529         } else {
1530                 hs->lip_count = -1;
1531                 hs->nos_count = (phba->fc_eventTag >> 1);
1532                 hs->nos_count -= lso->link_events;
1533         }
1534
1535         hs->dumped_frames = -1;
1536
1537         seconds = get_seconds();
1538         if (seconds < psli->stats_start)
1539                 hs->seconds_since_last_reset = seconds +
1540                                 ((unsigned long)-1 - psli->stats_start);
1541         else
1542                 hs->seconds_since_last_reset = seconds - psli->stats_start;
1543
1544         return hs;
1545 }
1546
1547 static void
1548 lpfc_reset_stats(struct Scsi_Host *shost)
1549 {
1550         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1551         struct lpfc_sli *psli = &phba->sli;
1552         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1553         LPFC_MBOXQ_t *pmboxq;
1554         MAILBOX_t *pmb;
1555         int rc = 0;
1556
1557         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1558         if (!pmboxq)
1559                 return;
1560         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1561
1562         pmb = &pmboxq->mb;
1563         pmb->mbxCommand = MBX_READ_STATUS;
1564         pmb->mbxOwner = OWN_HOST;
1565         pmb->un.varWords[0] = 0x1; /* reset request */
1566         pmboxq->context1 = NULL;
1567
1568         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1569                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1570                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1571         else
1572                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1573
1574         if (rc != MBX_SUCCESS) {
1575                 if (rc == MBX_TIMEOUT)
1576                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1577                 else
1578                         mempool_free(pmboxq, phba->mbox_mem_pool);
1579                 return;
1580         }
1581
1582         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1583         pmb->mbxCommand = MBX_READ_LNK_STAT;
1584         pmb->mbxOwner = OWN_HOST;
1585         pmboxq->context1 = NULL;
1586
1587         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1588             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1589                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1590         else
1591                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1592
1593         if (rc != MBX_SUCCESS) {
1594                 if (rc == MBX_TIMEOUT)
1595                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1596                 else
1597                         mempool_free( pmboxq, phba->mbox_mem_pool);
1598                 return;
1599         }
1600
1601         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1602         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1603         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1604         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1605         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1606         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1607         lso->error_frames = pmb->un.varRdLnk.crcCnt;
1608         lso->link_events = (phba->fc_eventTag >> 1);
1609
1610         psli->stats_start = get_seconds();
1611
1612         return;
1613 }
1614
1615 /*
1616  * The LPFC driver treats linkdown handling as target loss events so there
1617  * are no sysfs handlers for link_down_tmo.
1618  */
1619 static void
1620 lpfc_get_starget_port_id(struct scsi_target *starget)
1621 {
1622         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1623         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1624         uint32_t did = -1;
1625         struct lpfc_nodelist *ndlp = NULL;
1626
1627         spin_lock_irq(shost->host_lock);
1628         /* Search the mapped list for this target ID */
1629         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1630                 if (starget->id == ndlp->nlp_sid) {
1631                         did = ndlp->nlp_DID;
1632                         break;
1633                 }
1634         }
1635         spin_unlock_irq(shost->host_lock);
1636
1637         fc_starget_port_id(starget) = did;
1638 }
1639
1640 static void
1641 lpfc_get_starget_node_name(struct scsi_target *starget)
1642 {
1643         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1644         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1645         u64 node_name = 0;
1646         struct lpfc_nodelist *ndlp = NULL;
1647
1648         spin_lock_irq(shost->host_lock);
1649         /* Search the mapped list for this target ID */
1650         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1651                 if (starget->id == ndlp->nlp_sid) {
1652                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1653                         break;
1654                 }
1655         }
1656         spin_unlock_irq(shost->host_lock);
1657
1658         fc_starget_node_name(starget) = node_name;
1659 }
1660
1661 static void
1662 lpfc_get_starget_port_name(struct scsi_target *starget)
1663 {
1664         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1665         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1666         u64 port_name = 0;
1667         struct lpfc_nodelist *ndlp = NULL;
1668
1669         spin_lock_irq(shost->host_lock);
1670         /* Search the mapped list for this target ID */
1671         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1672                 if (starget->id == ndlp->nlp_sid) {
1673                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1674                         break;
1675                 }
1676         }
1677         spin_unlock_irq(shost->host_lock);
1678
1679         fc_starget_port_name(starget) = port_name;
1680 }
1681
1682 static void
1683 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1684 {
1685         if (timeout)
1686                 rport->dev_loss_tmo = timeout;
1687         else
1688                 rport->dev_loss_tmo = 1;
1689 }
1690
1691
1692 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1693 static ssize_t                                                          \
1694 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1695 {                                                                       \
1696         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1697         struct lpfc_rport_data *rdata = rport->hostdata;                \
1698         return snprintf(buf, sz, format_string,                         \
1699                 (rdata->target) ? cast rdata->target->field : 0);       \
1700 }
1701
1702 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1703         lpfc_rport_show_function(field, format_string, sz, )            \
1704 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1705
1706
1707 struct fc_function_template lpfc_transport_functions = {
1708         /* fixed attributes the driver supports */
1709         .show_host_node_name = 1,
1710         .show_host_port_name = 1,
1711         .show_host_supported_classes = 1,
1712         .show_host_supported_fc4s = 1,
1713         .show_host_supported_speeds = 1,
1714         .show_host_maxframe_size = 1,
1715
1716         /* dynamic attributes the driver supports */
1717         .get_host_port_id = lpfc_get_host_port_id,
1718         .show_host_port_id = 1,
1719
1720         .get_host_port_type = lpfc_get_host_port_type,
1721         .show_host_port_type = 1,
1722
1723         .get_host_port_state = lpfc_get_host_port_state,
1724         .show_host_port_state = 1,
1725
1726         /* active_fc4s is shown but doesn't change (thus no get function) */
1727         .show_host_active_fc4s = 1,
1728
1729         .get_host_speed = lpfc_get_host_speed,
1730         .show_host_speed = 1,
1731
1732         .get_host_fabric_name = lpfc_get_host_fabric_name,
1733         .show_host_fabric_name = 1,
1734
1735         .get_host_symbolic_name = lpfc_get_host_symbolic_name,
1736         .show_host_symbolic_name = 1,
1737
1738         /*
1739          * The LPFC driver treats linkdown handling as target loss events
1740          * so there are no sysfs handlers for link_down_tmo.
1741          */
1742
1743         .get_fc_host_stats = lpfc_get_stats,
1744         .reset_fc_host_stats = lpfc_reset_stats,
1745
1746         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1747         .show_rport_maxframe_size = 1,
1748         .show_rport_supported_classes = 1,
1749
1750         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1751         .show_rport_dev_loss_tmo = 1,
1752
1753         .get_starget_port_id  = lpfc_get_starget_port_id,
1754         .show_starget_port_id = 1,
1755
1756         .get_starget_node_name = lpfc_get_starget_node_name,
1757         .show_starget_node_name = 1,
1758
1759         .get_starget_port_name = lpfc_get_starget_port_name,
1760         .show_starget_port_name = 1,
1761
1762         .issue_fc_host_lip = lpfc_issue_lip,
1763         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
1764         .terminate_rport_io = lpfc_terminate_rport_io,
1765 };
1766
1767 void
1768 lpfc_get_cfgparam(struct lpfc_hba *phba)
1769 {
1770         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1771         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1772         lpfc_cr_count_init(phba, lpfc_cr_count);
1773         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1774         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1775         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1776         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1777         lpfc_ack0_init(phba, lpfc_ack0);
1778         lpfc_topology_init(phba, lpfc_topology);
1779         lpfc_scan_down_init(phba, lpfc_scan_down);
1780         lpfc_link_speed_init(phba, lpfc_link_speed);
1781         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1782         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1783         lpfc_max_luns_init(phba, lpfc_max_luns);
1784         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1785         lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
1786         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1787         phba->cfg_poll = lpfc_poll;
1788         phba->cfg_soft_wwpn = 0L;
1789
1790         /*
1791          * The total number of segments is the configuration value plus 2
1792          * since the IOCB need a command and response bde.
1793          */
1794         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1795
1796         /*
1797          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1798          * used to create the sg_dma_buf_pool must be dynamically calculated
1799          */
1800         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1801                         sizeof(struct fcp_rsp) +
1802                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1803
1804         switch (phba->pcidev->device) {
1805         case PCI_DEVICE_ID_LP101:
1806         case PCI_DEVICE_ID_BSMB:
1807         case PCI_DEVICE_ID_ZSMB:
1808                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1809                 break;
1810         case PCI_DEVICE_ID_RFLY:
1811         case PCI_DEVICE_ID_PFLY:
1812         case PCI_DEVICE_ID_BMID:
1813         case PCI_DEVICE_ID_ZMID:
1814         case PCI_DEVICE_ID_TFLY:
1815                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1816                 break;
1817         default:
1818                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1819         }
1820
1821         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1822                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1823
1824         return;
1825 }