git.oblomov.eu Git - linux-2.6/blob - 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", phba->cfg_soft_wwpn);
 598 }
 599
 600
 601 static ssize_t
 602 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 603 {
 604         struct Scsi_Host *host = class_to_shost(cdev);
 605         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 606         struct completion online_compl;
 607         int stat1=0, stat2=0;
 608         unsigned int i, j, cnt=count;
 609         u8 wwpn[8];
 610
 611         /* count may include a LF at end of string */
 612         if (buf[cnt-1] == '\n')
 613                 cnt--;
 614
 615         if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
 616             ((cnt == 17) && (*buf++ != 'x')) ||
 617             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 618                 return -EINVAL;
 619
 620         phba->soft_wwpn_enable = 0;
 621
 622         memset(wwpn, 0, sizeof(wwpn));
 623
 624         /* Validate and store the new name */
 625         for (i=0, j=0; i < 16; i++) {
 626                 if ((*buf >= 'a') && (*buf <= 'f'))
 627                         j = ((j << 4) | ((*buf++ -'a') + 10));
 628                 else if ((*buf >= 'A') && (*buf <= 'F'))
 629                         j = ((j << 4) | ((*buf++ -'A') + 10));
 630                 else if ((*buf >= '0') && (*buf <= '9'))
 631                         j = ((j << 4) | (*buf++ -'0'));
 632                 else
 633                         return -EINVAL;
 634                 if (i % 2) {
 635                         wwpn[i/2] = j & 0xff;
 636                         j = 0;
 637                 }
 638         }
 639         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
 640         fc_host_port_name(host) = phba->cfg_soft_wwpn;
 641
 642         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
 643                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
 644
 645         init_completion(&online_compl);
 646         lpfc_workq_post_event(phba, &stat1, &online_compl, LPFC_EVT_OFFLINE);
 647         wait_for_completion(&online_compl);
 648         if (stat1)
 649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 650                         "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
 651                         "adapter - %d\n", phba->brd_no, stat1);
 652
 653         init_completion(&online_compl);
 654         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
 655         wait_for_completion(&online_compl);
 656         if (stat2)
 657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 658                         "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
 659                         "adapter - %d\n", phba->brd_no, stat2);
 660
 661         return (stat1 || stat2) ? -EIO : count;
 662 }
 663 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
 664                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
 665
 666
 667 static int lpfc_poll = 0;
 668 module_param(lpfc_poll, int, 0);
 669 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 670                  " 0 - none,"
 671                  " 1 - poll with interrupts enabled"
 672                  " 3 - poll and disable FCP ring interrupts");
 673
 674 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 675                          lpfc_poll_show, lpfc_poll_store);
 676
 677 /*
 678 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 679 # until the timer expires. Value range is [0,255]. Default value is 30.
 680 */
 681 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
 682 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
 683 module_param(lpfc_nodev_tmo, int, 0);
 684 MODULE_PARM_DESC(lpfc_nodev_tmo,
 685                  "Seconds driver will hold I/O waiting "
 686                  "for a device to come back");
 687 static ssize_t
 688 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
 689 {
 690         struct Scsi_Host *host = class_to_shost(cdev);
 691         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 692         int val = 0;
 693         val = phba->cfg_devloss_tmo;
 694         return snprintf(buf, PAGE_SIZE, "%d\n",
 695                         phba->cfg_devloss_tmo);
 696 }
 697
 698 static int
 699 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
 700 {
 701         static int warned;
 702         if (phba->cfg_devloss_tmo !=  LPFC_DEF_DEVLOSS_TMO) {
 703                 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
 704                 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
 705                         warned = 1;
 706                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 707                                         "%d:0402 Ignoring nodev_tmo module "
 708                                         "parameter because devloss_tmo is"
 709                                         " set.\n",
 710                                         phba->brd_no);
 711                 }
 712                 return 0;
 713         }
 714
 715         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 716                 phba->cfg_nodev_tmo = val;
 717                 phba->cfg_devloss_tmo = val;
 718                 return 0;
 719         }
 720         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 721                         "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
 722                         "allowed range is [%d, %d]\n",
 723                         phba->brd_no, val,
 724                         LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
 725         phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
 726         return -EINVAL;
 727 }
 728
 729 static int
 730 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
 731 {
 732         if (phba->dev_loss_tmo_changed ||
 733                 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
 734                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 735                                 "%d:0401 Ignoring change to nodev_tmo "
 736                                 "because devloss_tmo is set.\n",
 737                                 phba->brd_no);
 738                 return 0;
 739         }
 740
 741         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 742                 phba->cfg_nodev_tmo = val;
 743                 phba->cfg_devloss_tmo = val;
 744                 return 0;
 745         }
 746
 747         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 748                         "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
 749                         "allowed range is [%d, %d]\n",
 750                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
 751                         LPFC_MAX_DEVLOSS_TMO);
 752         return -EINVAL;
 753 }
 754
 755 lpfc_param_store(nodev_tmo)
 756
 757 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
 758                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
 759
 760 /*
 761 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
 762 # disappear until the timer expires. Value range is [0,255]. Default
 763 # value is 30.
 764 */
 765 module_param(lpfc_devloss_tmo, int, 0);
 766 MODULE_PARM_DESC(lpfc_devloss_tmo,
 767                  "Seconds driver will hold I/O waiting "
 768                  "for a device to come back");
 769 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
 770                 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
 771 lpfc_param_show(devloss_tmo)
 772 static int
 773 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
 774 {
 775         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
 776                 phba->cfg_nodev_tmo = val;
 777                 phba->cfg_devloss_tmo = val;
 778                 phba->dev_loss_tmo_changed = 1;
 779                 return 0;
 780         }
 781
 782         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 783                         "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
 784                         " %d, allowed range is [%d, %d]\n",
 785                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
 786                         LPFC_MAX_DEVLOSS_TMO);
 787         return -EINVAL;
 788 }
 789
 790 lpfc_param_store(devloss_tmo)
 791 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
 792         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
 793
 794 /*
 795 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 796 # deluged with LOTS of information.
 797 # You can set a bit mask to record specific types of verbose messages:
 798 #
 799 # LOG_ELS                       0x1        ELS events
 800 # LOG_DISCOVERY                 0x2        Link discovery events
 801 # LOG_MBOX                      0x4        Mailbox events
 802 # LOG_INIT                      0x8        Initialization events
 803 # LOG_LINK_EVENT                0x10       Link events
 804 # LOG_IP                        0x20       IP traffic history
 805 # LOG_FCP                       0x40       FCP traffic history
 806 # LOG_NODE                      0x80       Node table events
 807 # LOG_MISC                      0x400      Miscellaneous events
 808 # LOG_SLI                       0x800      SLI events
 809 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 810 # LOG_LIBDFC                    0x2000     LIBDFC events
 811 # LOG_ALL_MSG                   0xffff     LOG all messages
 812 */
 813 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 814
 815 /*
 816 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 817 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 818 */
 819 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 820             "Max number of FCP commands we can queue to a specific LUN");
 821
 822 /*
 823 # hba_queue_depth:  This parameter is used to limit the number of outstanding
 824 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
 825 # value is greater than the maximum number of exchanges supported by the HBA,
 826 # then maximum number of exchanges supported by the HBA is used to determine
 827 # the hba_queue_depth.
 828 */
 829 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
 830             "Max number of FCP commands we can queue to a lpfc HBA");
 831
 832 /*
 833 # Some disk devices have a "select ID" or "select Target" capability.
 834 # From a protocol standpoint "select ID" usually means select the
 835 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 836 # annex" which contains a table that maps a "select ID" (a number
 837 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 838 # older drivers, the lpfc driver scans this table from low ALPA to high
 839 # ALPA.
 840 #
 841 # Turning on the scan-down variable (on  = 1, off = 0) will
 842 # cause the lpfc driver to use an inverted table, effectively
 843 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 844 #
 845 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 846 # and will not work across a fabric. Also this parameter will take
 847 # effect only in the case when ALPA map is not available.)
 848 */
 849 LPFC_ATTR_R(scan_down, 1, 0, 1,
 850              "Start scanning for devices from highest ALPA to lowest");
 851
 852 /*
 853 # lpfc_topology:  link topology for init link
 854 #            0x0  = attempt loop mode then point-to-point
 855 #            0x01 = internal loopback mode
 856 #            0x02 = attempt point-to-point mode only
 857 #            0x04 = attempt loop mode only
 858 #            0x06 = attempt point-to-point mode then loop
 859 # Set point-to-point mode if you want to run as an N_Port.
 860 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 861 # Default value is 0.
 862 */
 863 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
 864
 865 /*
 866 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 867 # connection.
 868 #       0  = auto select (default)
 869 #       1  = 1 Gigabaud
 870 #       2  = 2 Gigabaud
 871 #       4  = 4 Gigabaud
 872 # Value range is [0,4]. Default value is 0.
 873 */
 874 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 875
 876 /*
 877 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 878 # Value range is [2,3]. Default value is 3.
 879 */
 880 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 881              "Select Fibre Channel class of service for FCP sequences");
 882
 883 /*
 884 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 885 # is [0,1]. Default value is 0.
 886 */
 887 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 888              "Use ADISC on rediscovery to authenticate FCP devices");
 889
 890 /*
 891 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 892 # range is [0,1]. Default value is 0.
 893 */
 894 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 895
 896 /*
 897 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 898 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 899 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 900 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 901 # cr_delay is set to 0.
 902 */
 903 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
 904                 "interrupt response is generated");
 905
 906 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
 907                 "interrupt response is generated");
 908
 909 /*
 910 # lpfc_multi_ring_support:  Determines how many rings to spread available
 911 # cmd/rsp IOCB entries across.
 912 # Value range is [1,2]. Default value is 1.
 913 */
 914 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
 915                 "SLI rings to spread IOCB entries across");
 916
 917 /*
 918 # lpfc_fdmi_on: controls FDMI support.
 919 #       0 = no FDMI support
 920 #       1 = support FDMI without attribute of hostname
 921 #       2 = support FDMI with attribute of hostname
 922 # Value range [0,2]. Default value is 0.
 923 */
 924 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 925
 926 /*
 927 # Specifies the maximum number of ELS cmds we can have outstanding (for
 928 # discovery). Value range is [1,64]. Default value = 32.
 929 */
 930 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
 931                  "during discovery");
 932
 933 /*
 934 # lpfc_max_luns: maximum allowed LUN.
 935 # Value range is [0,65535]. Default value is 255.
 936 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
 937 */
 938 LPFC_ATTR_R(max_luns, 255, 0, 65535,
 939              "Maximum allowed LUN");
 940
 941 /*
 942 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
 943 # Value range is [1,255], default value is 10.
 944 */
 945 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 946              "Milliseconds driver will wait between polling FCP ring");
 947
 948
 949 struct class_device_attribute *lpfc_host_attrs[] = {
 950         &class_device_attr_info,
 951         &class_device_attr_serialnum,
 952         &class_device_attr_modeldesc,
 953         &class_device_attr_modelname,
 954         &class_device_attr_programtype,
 955         &class_device_attr_portnum,
 956         &class_device_attr_fwrev,
 957         &class_device_attr_hdw,
 958         &class_device_attr_option_rom_version,
 959         &class_device_attr_state,
 960         &class_device_attr_num_discovered_ports,
 961         &class_device_attr_lpfc_drvr_version,
 962         &class_device_attr_lpfc_log_verbose,
 963         &class_device_attr_lpfc_lun_queue_depth,
 964         &class_device_attr_lpfc_hba_queue_depth,
 965         &class_device_attr_lpfc_nodev_tmo,
 966         &class_device_attr_lpfc_devloss_tmo,
 967         &class_device_attr_lpfc_fcp_class,
 968         &class_device_attr_lpfc_use_adisc,
 969         &class_device_attr_lpfc_ack0,
 970         &class_device_attr_lpfc_topology,
 971         &class_device_attr_lpfc_scan_down,
 972         &class_device_attr_lpfc_link_speed,
 973         &class_device_attr_lpfc_cr_delay,
 974         &class_device_attr_lpfc_cr_count,
 975         &class_device_attr_lpfc_multi_ring_support,
 976         &class_device_attr_lpfc_fdmi_on,
 977         &class_device_attr_lpfc_max_luns,
 978         &class_device_attr_nport_evt_cnt,
 979         &class_device_attr_management_version,
 980         &class_device_attr_board_mode,
 981         &class_device_attr_issue_reset,
 982         &class_device_attr_lpfc_poll,
 983         &class_device_attr_lpfc_poll_tmo,
 984         &class_device_attr_lpfc_soft_wwpn,
 985         &class_device_attr_lpfc_soft_wwpn_enable,
 986         NULL,
 987 };
 988
 989 static ssize_t
 990 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 991 {
 992         size_t buf_off;
 993         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 994                                              struct class_device, kobj));
 995         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 996
 997         if ((off + count) > FF_REG_AREA_SIZE)
 998                 return -ERANGE;
 999
1000         if (count == 0) return 0;
1001
1002         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1003                 return -EINVAL;
1004
1005         spin_lock_irq(phba->host->host_lock);
1006
1007         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1008                 spin_unlock_irq(phba->host->host_lock);
1009                 return -EPERM;
1010         }
1011
1012         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1013                 writel(*((uint32_t *)(buf + buf_off)),
1014                        phba->ctrl_regs_memmap_p + off + buf_off);
1015
1016         spin_unlock_irq(phba->host->host_lock);
1017
1018         return count;
1019 }
1020
1021 static ssize_t
1022 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1023 {
1024         size_t buf_off;
1025         uint32_t * tmp_ptr;
1026         struct Scsi_Host *host = class_to_shost(container_of(kobj,
1027                                              struct class_device, kobj));
1028         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1029
1030         if (off > FF_REG_AREA_SIZE)
1031                 return -ERANGE;
1032
1033         if ((off + count) > FF_REG_AREA_SIZE)
1034                 count = FF_REG_AREA_SIZE - off;
1035
1036         if (count == 0) return 0;
1037
1038         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1039                 return -EINVAL;
1040
1041         spin_lock_irq(phba->host->host_lock);
1042
1043         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1044                 tmp_ptr = (uint32_t *)(buf + buf_off);
1045                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1046         }
1047
1048         spin_unlock_irq(phba->host->host_lock);
1049
1050         return count;
1051 }
1052
1053 static struct bin_attribute sysfs_ctlreg_attr = {
1054         .attr = {
1055                 .name = "ctlreg",
1056                 .mode = S_IRUSR | S_IWUSR,
1057                 .owner = THIS_MODULE,
1058         },
1059         .size = 256,
1060         .read = sysfs_ctlreg_read,
1061         .write = sysfs_ctlreg_write,
1062 };
1063
1064
1065 static void
1066 sysfs_mbox_idle (struct lpfc_hba * phba)
1067 {
1068         phba->sysfs_mbox.state = SMBOX_IDLE;
1069         phba->sysfs_mbox.offset = 0;
1070
1071         if (phba->sysfs_mbox.mbox) {
1072                 mempool_free(phba->sysfs_mbox.mbox,
1073                              phba->mbox_mem_pool);
1074                 phba->sysfs_mbox.mbox = NULL;
1075         }
1076 }
1077
1078 static ssize_t
1079 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1080 {
1081         struct Scsi_Host * host =
1082                 class_to_shost(container_of(kobj, struct class_device, kobj));
1083         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
1084         struct lpfcMboxq * mbox = NULL;
1085
1086         if ((count + off) > MAILBOX_CMD_SIZE)
1087                 return -ERANGE;
1088
1089         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1090                 return -EINVAL;
1091
1092         if (count == 0)
1093                 return 0;
1094
1095         if (off == 0) {
1096                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1097                 if (!mbox)
1098                         return -ENOMEM;
1099                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1100         }
1101
1102         spin_lock_irq(host->host_lock);
1103
1104         if (off == 0) {
1105                 if (phba->sysfs_mbox.mbox)
1106                         mempool_free(mbox, phba->mbox_mem_pool);
1107                 else
1108                         phba->sysfs_mbox.mbox = mbox;
1109                 phba->sysfs_mbox.state = SMBOX_WRITING;
1110         } else {
1111                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1112                     phba->sysfs_mbox.offset != off           ||
1113                     phba->sysfs_mbox.mbox   == NULL ) {
1114                         sysfs_mbox_idle(phba);
1115                         spin_unlock_irq(host->host_lock);
1116                         return -EAGAIN;
1117                 }
1118         }
1119
1120         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1121                buf, count);
1122
1123         phba->sysfs_mbox.offset = off + count;
1124
1125         spin_unlock_irq(host->host_lock);
1126
1127         return count;
1128 }
1129
1130 static ssize_t
1131 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1132 {
1133         struct Scsi_Host *host =
1134                 class_to_shost(container_of(kobj, struct class_device,
1135                                             kobj));
1136         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1137         int rc;
1138
1139         if (off > sizeof(MAILBOX_t))
1140                 return -ERANGE;
1141
1142         if ((count + off) > sizeof(MAILBOX_t))
1143                 count = sizeof(MAILBOX_t) - off;
1144
1145         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1146                 return -EINVAL;
1147
1148         if (off && count == 0)
1149                 return 0;
1150
1151         spin_lock_irq(phba->host->host_lock);
1152
1153         if (off == 0 &&
1154             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1155             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1156
1157                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1158                         /* Offline only */
1159                 case MBX_WRITE_NV:
1160                 case MBX_INIT_LINK:
1161                 case MBX_DOWN_LINK:
1162                 case MBX_CONFIG_LINK:
1163                 case MBX_CONFIG_RING:
1164                 case MBX_RESET_RING:
1165                 case MBX_UNREG_LOGIN:
1166                 case MBX_CLEAR_LA:
1167                 case MBX_DUMP_CONTEXT:
1168                 case MBX_RUN_DIAGS:
1169                 case MBX_RESTART:
1170                 case MBX_FLASH_WR_ULA:
1171                 case MBX_SET_MASK:
1172                 case MBX_SET_SLIM:
1173                 case MBX_SET_DEBUG:
1174                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1175                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1176                                        "is illegal in on-line state\n",
1177                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1178                                 sysfs_mbox_idle(phba);
1179                                 spin_unlock_irq(phba->host->host_lock);
1180                                 return -EPERM;
1181                         }
1182                 case MBX_LOAD_SM:
1183                 case MBX_READ_NV:
1184                 case MBX_READ_CONFIG:
1185                 case MBX_READ_RCONFIG:
1186                 case MBX_READ_STATUS:
1187                 case MBX_READ_XRI:
1188                 case MBX_READ_REV:
1189                 case MBX_READ_LNK_STAT:
1190                 case MBX_DUMP_MEMORY:
1191                 case MBX_DOWN_LOAD:
1192                 case MBX_UPDATE_CFG:
1193                 case MBX_KILL_BOARD:
1194                 case MBX_LOAD_AREA:
1195                 case MBX_LOAD_EXP_ROM:
1196                 case MBX_BEACON:
1197                 case MBX_DEL_LD_ENTRY:
1198                         break;
1199                 case MBX_READ_SPARM64:
1200                 case MBX_READ_LA:
1201                 case MBX_READ_LA64:
1202                 case MBX_REG_LOGIN:
1203                 case MBX_REG_LOGIN64:
1204                 case MBX_CONFIG_PORT:
1205                 case MBX_RUN_BIU_DIAG:
1206                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1207                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1208                         sysfs_mbox_idle(phba);
1209                         spin_unlock_irq(phba->host->host_lock);
1210                         return -EPERM;
1211                 default:
1212                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1213                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1214                         sysfs_mbox_idle(phba);
1215                         spin_unlock_irq(phba->host->host_lock);
1216                         return -EPERM;
1217                 }
1218
1219                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1220                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1221
1222                         spin_unlock_irq(phba->host->host_lock);
1223                         rc = lpfc_sli_issue_mbox (phba,
1224                                                   phba->sysfs_mbox.mbox,
1225                                                   MBX_POLL);
1226                         spin_lock_irq(phba->host->host_lock);
1227
1228                 } else {
1229                         spin_unlock_irq(phba->host->host_lock);
1230                         rc = lpfc_sli_issue_mbox_wait (phba,
1231                                                        phba->sysfs_mbox.mbox,
1232                                 lpfc_mbox_tmo_val(phba,
1233                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1234                         spin_lock_irq(phba->host->host_lock);
1235                 }
1236
1237                 if (rc != MBX_SUCCESS) {
1238                         sysfs_mbox_idle(phba);
1239                         spin_unlock_irq(host->host_lock);
1240                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1241                 }
1242                 phba->sysfs_mbox.state = SMBOX_READING;
1243         }
1244         else if (phba->sysfs_mbox.offset != off ||
1245                  phba->sysfs_mbox.state  != SMBOX_READING) {
1246                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1247                 sysfs_mbox_idle(phba);
1248                 spin_unlock_irq(host->host_lock);
1249                 return -EAGAIN;
1250         }
1251
1252         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1253
1254         phba->sysfs_mbox.offset = off + count;
1255
1256         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1257                 sysfs_mbox_idle(phba);
1258
1259         spin_unlock_irq(phba->host->host_lock);
1260
1261         return count;
1262 }
1263
1264 static struct bin_attribute sysfs_mbox_attr = {
1265         .attr = {
1266                 .name = "mbox",
1267                 .mode = S_IRUSR | S_IWUSR,
1268                 .owner = THIS_MODULE,
1269         },
1270         .size = sizeof(MAILBOX_t),
1271         .read = sysfs_mbox_read,
1272         .write = sysfs_mbox_write,
1273 };
1274
1275 int
1276 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1277 {
1278         struct Scsi_Host *host = phba->host;
1279         int error;
1280
1281         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1282                                                         &sysfs_ctlreg_attr);
1283         if (error)
1284                 goto out;
1285
1286         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1287                                                         &sysfs_mbox_attr);
1288         if (error)
1289                 goto out_remove_ctlreg_attr;
1290
1291         return 0;
1292 out_remove_ctlreg_attr:
1293         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1294 out:
1295         return error;
1296 }
1297
1298 void
1299 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1300 {
1301         struct Scsi_Host *host = phba->host;
1302
1303         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1304         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1305 }
1306
1307
1308 /*
1309  * Dynamic FC Host Attributes Support
1310  */
1311
1312 static void
1313 lpfc_get_host_port_id(struct Scsi_Host *shost)
1314 {
1315         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1316         /* note: fc_myDID already in cpu endianness */
1317         fc_host_port_id(shost) = phba->fc_myDID;
1318 }
1319
1320 static void
1321 lpfc_get_host_port_type(struct Scsi_Host *shost)
1322 {
1323         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1324
1325         spin_lock_irq(shost->host_lock);
1326
1327         if (phba->hba_state == LPFC_HBA_READY) {
1328                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1329                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1330                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1331                         else
1332                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1333                 } else {
1334                         if (phba->fc_flag & FC_FABRIC)
1335                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1336                         else
1337                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1338                 }
1339         } else
1340                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1341
1342         spin_unlock_irq(shost->host_lock);
1343 }
1344
1345 static void
1346 lpfc_get_host_port_state(struct Scsi_Host *shost)
1347 {
1348         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1349
1350         spin_lock_irq(shost->host_lock);
1351
1352         if (phba->fc_flag & FC_OFFLINE_MODE)
1353                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1354         else {
1355                 switch (phba->hba_state) {
1356                 case LPFC_STATE_UNKNOWN:
1357                 case LPFC_WARM_START:
1358                 case LPFC_INIT_START:
1359                 case LPFC_INIT_MBX_CMDS:
1360                 case LPFC_LINK_DOWN:
1361                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1362                         break;
1363                 case LPFC_LINK_UP:
1364                 case LPFC_LOCAL_CFG_LINK:
1365                 case LPFC_FLOGI:
1366                 case LPFC_FABRIC_CFG_LINK:
1367                 case LPFC_NS_REG:
1368                 case LPFC_NS_QRY:
1369                 case LPFC_BUILD_DISC_LIST:
1370                 case LPFC_DISC_AUTH:
1371                 case LPFC_CLEAR_LA:
1372                 case LPFC_HBA_READY:
1373                         /* Links up, beyond this port_type reports state */
1374                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1375                         break;
1376                 case LPFC_HBA_ERROR:
1377                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1378                         break;
1379                 default:
1380                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1381                         break;
1382                 }
1383         }
1384
1385         spin_unlock_irq(shost->host_lock);
1386 }
1387
1388 static void
1389 lpfc_get_host_speed(struct Scsi_Host *shost)
1390 {
1391         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1392
1393         spin_lock_irq(shost->host_lock);
1394
1395         if (phba->hba_state == LPFC_HBA_READY) {
1396                 switch(phba->fc_linkspeed) {
1397                         case LA_1GHZ_LINK:
1398                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1399                         break;
1400                         case LA_2GHZ_LINK:
1401                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1402                         break;
1403                         case LA_4GHZ_LINK:
1404                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1405                         break;
1406                         default:
1407                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1408                         break;
1409                 }
1410         }
1411
1412         spin_unlock_irq(shost->host_lock);
1413 }
1414
1415 static void
1416 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1417 {
1418         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1419         u64 node_name;
1420
1421         spin_lock_irq(shost->host_lock);
1422
1423         if ((phba->fc_flag & FC_FABRIC) ||
1424             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1425              (phba->fc_flag & FC_PUBLIC_LOOP)))
1426                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1427         else
1428                 /* fabric is local port if there is no F/FL_Port */
1429                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1430
1431         spin_unlock_irq(shost->host_lock);
1432
1433         fc_host_fabric_name(shost) = node_name;
1434 }
1435
1436 static void
1437 lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
1438 {
1439         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1440
1441         spin_lock_irq(shost->host_lock);
1442         lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
1443         spin_unlock_irq(shost->host_lock);
1444 }
1445
1446 static struct fc_host_statistics *
1447 lpfc_get_stats(struct Scsi_Host *shost)
1448 {
1449         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1450         struct lpfc_sli *psli = &phba->sli;
1451         struct fc_host_statistics *hs = &phba->link_stats;
1452         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1453         LPFC_MBOXQ_t *pmboxq;
1454         MAILBOX_t *pmb;
1455         unsigned long seconds;
1456         int rc = 0;
1457
1458         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1459         if (!pmboxq)
1460                 return NULL;
1461         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1462
1463         pmb = &pmboxq->mb;
1464         pmb->mbxCommand = MBX_READ_STATUS;
1465         pmb->mbxOwner = OWN_HOST;
1466         pmboxq->context1 = NULL;
1467
1468         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1469                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1470                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1471         else
1472                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1473
1474         if (rc != MBX_SUCCESS) {
1475                 if (rc == MBX_TIMEOUT)
1476                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1477                 else
1478                         mempool_free(pmboxq, phba->mbox_mem_pool);
1479                 return NULL;
1480         }
1481
1482         memset(hs, 0, sizeof (struct fc_host_statistics));
1483
1484         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1485         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1486         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1487         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1488
1489         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1490         pmb->mbxCommand = MBX_READ_LNK_STAT;
1491         pmb->mbxOwner = OWN_HOST;
1492         pmboxq->context1 = NULL;
1493
1494         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1495             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1496                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1497         else
1498                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1499
1500         if (rc != MBX_SUCCESS) {
1501                 if (rc == MBX_TIMEOUT)
1502                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1503                 else
1504                         mempool_free( pmboxq, phba->mbox_mem_pool);
1505                 return NULL;
1506         }
1507
1508         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1509         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1510         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1511         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1512         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1513         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1514         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1515
1516         hs->link_failure_count -= lso->link_failure_count;
1517         hs->loss_of_sync_count -= lso->loss_of_sync_count;
1518         hs->loss_of_signal_count -= lso->loss_of_signal_count;
1519         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1520         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1521         hs->invalid_crc_count -= lso->invalid_crc_count;
1522         hs->error_frames -= lso->error_frames;
1523
1524         if (phba->fc_topology == TOPOLOGY_LOOP) {
1525                 hs->lip_count = (phba->fc_eventTag >> 1);
1526                 hs->lip_count -= lso->link_events;
1527                 hs->nos_count = -1;
1528         } else {
1529                 hs->lip_count = -1;
1530                 hs->nos_count = (phba->fc_eventTag >> 1);
1531                 hs->nos_count -= lso->link_events;
1532         }
1533
1534         hs->dumped_frames = -1;
1535
1536         seconds = get_seconds();
1537         if (seconds < psli->stats_start)
1538                 hs->seconds_since_last_reset = seconds +
1539                                 ((unsigned long)-1 - psli->stats_start);
1540         else
1541                 hs->seconds_since_last_reset = seconds - psli->stats_start;
1542
1543         return hs;
1544 }
1545
1546 static void
1547 lpfc_reset_stats(struct Scsi_Host *shost)
1548 {
1549         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1550         struct lpfc_sli *psli = &phba->sli;
1551         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1552         LPFC_MBOXQ_t *pmboxq;
1553         MAILBOX_t *pmb;
1554         int rc = 0;
1555
1556         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1557         if (!pmboxq)
1558                 return;
1559         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1560
1561         pmb = &pmboxq->mb;
1562         pmb->mbxCommand = MBX_READ_STATUS;
1563         pmb->mbxOwner = OWN_HOST;
1564         pmb->un.varWords[0] = 0x1; /* reset request */
1565         pmboxq->context1 = NULL;
1566
1567         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1568                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1569                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1570         else
1571                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1572
1573         if (rc != MBX_SUCCESS) {
1574                 if (rc == MBX_TIMEOUT)
1575                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1576                 else
1577                         mempool_free(pmboxq, phba->mbox_mem_pool);
1578                 return;
1579         }
1580
1581         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1582         pmb->mbxCommand = MBX_READ_LNK_STAT;
1583         pmb->mbxOwner = OWN_HOST;
1584         pmboxq->context1 = NULL;
1585
1586         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1587             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1588                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1589         else
1590                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1591
1592         if (rc != MBX_SUCCESS) {
1593                 if (rc == MBX_TIMEOUT)
1594                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1595                 else
1596                         mempool_free( pmboxq, phba->mbox_mem_pool);
1597                 return;
1598         }
1599
1600         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1601         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1602         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1603         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1604         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1605         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1606         lso->error_frames = pmb->un.varRdLnk.crcCnt;
1607         lso->link_events = (phba->fc_eventTag >> 1);
1608
1609         psli->stats_start = get_seconds();
1610
1611         return;
1612 }
1613
1614 /*
1615  * The LPFC driver treats linkdown handling as target loss events so there
1616  * are no sysfs handlers for link_down_tmo.
1617  */
1618 static void
1619 lpfc_get_starget_port_id(struct scsi_target *starget)
1620 {
1621         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1622         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1623         uint32_t did = -1;
1624         struct lpfc_nodelist *ndlp = NULL;
1625
1626         spin_lock_irq(shost->host_lock);
1627         /* Search the mapped list for this target ID */
1628         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1629                 if (starget->id == ndlp->nlp_sid) {
1630                         did = ndlp->nlp_DID;
1631                         break;
1632                 }
1633         }
1634         spin_unlock_irq(shost->host_lock);
1635
1636         fc_starget_port_id(starget) = did;
1637 }
1638
1639 static void
1640 lpfc_get_starget_node_name(struct scsi_target *starget)
1641 {
1642         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1643         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1644         u64 node_name = 0;
1645         struct lpfc_nodelist *ndlp = NULL;
1646
1647         spin_lock_irq(shost->host_lock);
1648         /* Search the mapped list for this target ID */
1649         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1650                 if (starget->id == ndlp->nlp_sid) {
1651                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1652                         break;
1653                 }
1654         }
1655         spin_unlock_irq(shost->host_lock);
1656
1657         fc_starget_node_name(starget) = node_name;
1658 }
1659
1660 static void
1661 lpfc_get_starget_port_name(struct scsi_target *starget)
1662 {
1663         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1664         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1665         u64 port_name = 0;
1666         struct lpfc_nodelist *ndlp = NULL;
1667
1668         spin_lock_irq(shost->host_lock);
1669         /* Search the mapped list for this target ID */
1670         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1671                 if (starget->id == ndlp->nlp_sid) {
1672                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1673                         break;
1674                 }
1675         }
1676         spin_unlock_irq(shost->host_lock);
1677
1678         fc_starget_port_name(starget) = port_name;
1679 }
1680
1681 static void
1682 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1683 {
1684         if (timeout)
1685                 rport->dev_loss_tmo = timeout;
1686         else
1687                 rport->dev_loss_tmo = 1;
1688 }
1689
1690
1691 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1692 static ssize_t                                                          \
1693 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1694 {                                                                       \
1695         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1696         struct lpfc_rport_data *rdata = rport->hostdata;                \
1697         return snprintf(buf, sz, format_string,                         \
1698                 (rdata->target) ? cast rdata->target->field : 0);       \
1699 }
1700
1701 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1702         lpfc_rport_show_function(field, format_string, sz, )            \
1703 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1704
1705
1706 struct fc_function_template lpfc_transport_functions = {
1707         /* fixed attributes the driver supports */
1708         .show_host_node_name = 1,
1709         .show_host_port_name = 1,
1710         .show_host_supported_classes = 1,
1711         .show_host_supported_fc4s = 1,
1712         .show_host_supported_speeds = 1,
1713         .show_host_maxframe_size = 1,
1714
1715         /* dynamic attributes the driver supports */
1716         .get_host_port_id = lpfc_get_host_port_id,
1717         .show_host_port_id = 1,
1718
1719         .get_host_port_type = lpfc_get_host_port_type,
1720         .show_host_port_type = 1,
1721
1722         .get_host_port_state = lpfc_get_host_port_state,
1723         .show_host_port_state = 1,
1724
1725         /* active_fc4s is shown but doesn't change (thus no get function) */
1726         .show_host_active_fc4s = 1,
1727
1728         .get_host_speed = lpfc_get_host_speed,
1729         .show_host_speed = 1,
1730
1731         .get_host_fabric_name = lpfc_get_host_fabric_name,
1732         .show_host_fabric_name = 1,
1733
1734         .get_host_symbolic_name = lpfc_get_host_symbolic_name,
1735         .show_host_symbolic_name = 1,
1736
1737         /*
1738          * The LPFC driver treats linkdown handling as target loss events
1739          * so there are no sysfs handlers for link_down_tmo.
1740          */
1741
1742         .get_fc_host_stats = lpfc_get_stats,
1743         .reset_fc_host_stats = lpfc_reset_stats,
1744
1745         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1746         .show_rport_maxframe_size = 1,
1747         .show_rport_supported_classes = 1,
1748
1749         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1750         .show_rport_dev_loss_tmo = 1,
1751
1752         .get_starget_port_id  = lpfc_get_starget_port_id,
1753         .show_starget_port_id = 1,
1754
1755         .get_starget_node_name = lpfc_get_starget_node_name,
1756         .show_starget_node_name = 1,
1757
1758         .get_starget_port_name = lpfc_get_starget_port_name,
1759         .show_starget_port_name = 1,
1760
1761         .issue_fc_host_lip = lpfc_issue_lip,
1762         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
1763         .terminate_rport_io = lpfc_terminate_rport_io,
1764 };
1765
1766 void
1767 lpfc_get_cfgparam(struct lpfc_hba *phba)
1768 {
1769         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1770         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1771         lpfc_cr_count_init(phba, lpfc_cr_count);
1772         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1773         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1774         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1775         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1776         lpfc_ack0_init(phba, lpfc_ack0);
1777         lpfc_topology_init(phba, lpfc_topology);
1778         lpfc_scan_down_init(phba, lpfc_scan_down);
1779         lpfc_link_speed_init(phba, lpfc_link_speed);
1780         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1781         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1782         lpfc_max_luns_init(phba, lpfc_max_luns);
1783         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1784         lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
1785         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1786         phba->cfg_poll = lpfc_poll;
1787         phba->cfg_soft_wwpn = 0L;
1788
1789         /*
1790          * The total number of segments is the configuration value plus 2
1791          * since the IOCB need a command and response bde.
1792          */
1793         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1794
1795         /*
1796          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1797          * used to create the sg_dma_buf_pool must be dynamically calculated
1798          */
1799         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1800                         sizeof(struct fcp_rsp) +
1801                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1802
1803         switch (phba->pcidev->device) {
1804         case PCI_DEVICE_ID_LP101:
1805         case PCI_DEVICE_ID_BSMB:
1806         case PCI_DEVICE_ID_ZSMB:
1807                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1808                 break;
1809         case PCI_DEVICE_ID_RFLY:
1810         case PCI_DEVICE_ID_PFLY:
1811         case PCI_DEVICE_ID_BMID:
1812         case PCI_DEVICE_ID_ZMID:
1813         case PCI_DEVICE_ID_TFLY:
1814                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1815                 break;
1816         default:
1817                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1818         }
1819
1820         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1821                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1822
1823         return;
1824 }