err.no 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
  43 static void
  44 lpfc_jedec_to_ascii(int incr, char hdw[])
  45 {
  46         int i, j;
  47         for (i = 0; i < 8; i++) {
  48                 j = (incr & 0xf);
  49                 if (j <= 9)
  50                         hdw[7 - i] = 0x30 +  j;
  51                  else
  52                         hdw[7 - i] = 0x61 + j - 10;
  53                 incr = (incr >> 4);
  54         }
  55         hdw[8] = 0;
  56         return;
  57 }
  58
  59 static ssize_t
  60 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
  61 {
  62         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  63 }
  64
  65 static ssize_t
  66 management_version_show(struct class_device *cdev, char *buf)
  67 {
  68         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
  69 }
  70
  71 static ssize_t
  72 lpfc_info_show(struct class_device *cdev, char *buf)
  73 {
  74         struct Scsi_Host *host = class_to_shost(cdev);
  75         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  76 }
  77
  78 static ssize_t
  79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
  80 {
  81         struct Scsi_Host *host = class_to_shost(cdev);
  82         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
  83         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  84 }
  85
  86 static ssize_t
  87 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  88 {
  89         struct Scsi_Host *host = class_to_shost(cdev);
  90         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
  91         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
  92 }
  93
  94 static ssize_t
  95 lpfc_modelname_show(struct class_device *cdev, char *buf)
  96 {
  97         struct Scsi_Host *host = class_to_shost(cdev);
  98         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
  99         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 100 }
 101
 102 static ssize_t
 103 lpfc_programtype_show(struct class_device *cdev, char *buf)
 104 {
 105         struct Scsi_Host *host = class_to_shost(cdev);
 106         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 107         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 108 }
 109
 110 static ssize_t
 111 lpfc_portnum_show(struct class_device *cdev, char *buf)
 112 {
 113         struct Scsi_Host *host = class_to_shost(cdev);
 114         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 115         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 116 }
 117
 118 static ssize_t
 119 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 120 {
 121         struct Scsi_Host *host = class_to_shost(cdev);
 122         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 123         char fwrev[32];
 124         lpfc_decode_firmware_rev(phba, fwrev, 1);
 125         return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
 126 }
 127
 128 static ssize_t
 129 lpfc_hdw_show(struct class_device *cdev, char *buf)
 130 {
 131         char hdw[9];
 132         struct Scsi_Host *host = class_to_shost(cdev);
 133         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 134         lpfc_vpd_t *vp = &phba->vpd;
 135         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 136         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 137 }
 138 static ssize_t
 139 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 140 {
 141         struct Scsi_Host *host = class_to_shost(cdev);
 142         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 143         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 144 }
 145 static ssize_t
 146 lpfc_state_show(struct class_device *cdev, char *buf)
 147 {
 148         struct Scsi_Host *host = class_to_shost(cdev);
 149         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 150         int len = 0;
 151         switch (phba->hba_state) {
 152         case LPFC_STATE_UNKNOWN:
 153         case LPFC_WARM_START:
 154         case LPFC_INIT_START:
 155         case LPFC_INIT_MBX_CMDS:
 156         case LPFC_LINK_DOWN:
 157                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 158                 break;
 159         case LPFC_LINK_UP:
 160         case LPFC_LOCAL_CFG_LINK:
 161                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
 162                 break;
 163         case LPFC_FLOGI:
 164         case LPFC_FABRIC_CFG_LINK:
 165         case LPFC_NS_REG:
 166         case LPFC_NS_QRY:
 167         case LPFC_BUILD_DISC_LIST:
 168         case LPFC_DISC_AUTH:
 169         case LPFC_CLEAR_LA:
 170                 len += snprintf(buf + len, PAGE_SIZE-len,
 171                                 "Link Up - Discovery\n");
 172                 break;
 173         case LPFC_HBA_READY:
 174                 len += snprintf(buf + len, PAGE_SIZE-len,
 175                                 "Link Up - Ready:\n");
 176                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 177                         if (phba->fc_flag & FC_PUBLIC_LOOP)
 178                                 len += snprintf(buf + len, PAGE_SIZE-len,
 179                                                 "   Public Loop\n");
 180                         else
 181                                 len += snprintf(buf + len, PAGE_SIZE-len,
 182                                                 "   Private Loop\n");
 183                 } else {
 184                         if (phba->fc_flag & FC_FABRIC)
 185                                 len += snprintf(buf + len, PAGE_SIZE-len,
 186                                                 "   Fabric\n");
 187                         else
 188                                 len += snprintf(buf + len, PAGE_SIZE-len,
 189                                                 "   Point-2-Point\n");
 190                 }
 191         }
 192         return len;
 193 }
 194
 195 static ssize_t
 196 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 197 {
 198         struct Scsi_Host *host = class_to_shost(cdev);
 199         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 200         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
 201                                                         phba->fc_unmap_cnt);
 202 }
 203
 204
 205 static int
 206 lpfc_issue_lip(struct Scsi_Host *host)
 207 {
 208         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
 209         LPFC_MBOXQ_t *pmboxq;
 210         int mbxstatus = MBXERR_ERROR;
 211
 212         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 213             (phba->hba_state != LPFC_HBA_READY))
 214                 return -EPERM;
 215
 216         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 217
 218         if (!pmboxq)
 219                 return -ENOMEM;
 220
 221         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 222         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 223         pmboxq->mb.mbxOwner = OWN_HOST;
 224
 225         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 226
 227         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 228                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 229                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 230                                phba->cfg_link_speed);
 231                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 232                                                      phba->fc_ratov * 2);
 233         }
 234
 235         if (mbxstatus == MBX_TIMEOUT)
 236                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 237         else
 238                 mempool_free(pmboxq, phba->mbox_mem_pool);
 239
 240         if (mbxstatus == MBXERR_ERROR)
 241                 return -EIO;
 242
 243         return 0;
 244 }
 245
 246 static ssize_t
 247 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 248 {
 249         struct Scsi_Host *host = class_to_shost(cdev);
 250         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 251         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 252 }
 253
 254 static ssize_t
 255 lpfc_board_online_show(struct class_device *cdev, char *buf)
 256 {
 257         struct Scsi_Host *host = class_to_shost(cdev);
 258         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 259
 260         if (phba->fc_flag & FC_OFFLINE_MODE)
 261                 return snprintf(buf, PAGE_SIZE, "0\n");
 262         else
 263                 return snprintf(buf, PAGE_SIZE, "1\n");
 264 }
 265
 266 static ssize_t
 267 lpfc_board_online_store(struct class_device *cdev, const char *buf,
 268                                                                 size_t count)
 269 {
 270         struct Scsi_Host *host = class_to_shost(cdev);
 271         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 272         struct completion online_compl;
 273         int val=0, status=0;
 274
 275         if (sscanf(buf, "%d", &val) != 1)
 276                 return -EINVAL;
 277
 278         init_completion(&online_compl);
 279
 280         if (val)
 281                 lpfc_workq_post_event(phba, &status, &online_compl,
 282                                                         LPFC_EVT_ONLINE);
 283         else
 284                 lpfc_workq_post_event(phba, &status, &online_compl,
 285                                                         LPFC_EVT_OFFLINE);
 286         wait_for_completion(&online_compl);
 287         if (!status)
 288                 return strlen(buf);
 289         else
 290                 return -EIO;
 291 }
 292
 293 static ssize_t
 294 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 295 {
 296         struct Scsi_Host *host = class_to_shost(cdev);
 297         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 298         char  * state;
 299
 300         if (phba->hba_state == LPFC_HBA_ERROR)
 301                 state = "error";
 302         else if (phba->hba_state == LPFC_WARM_START)
 303                 state = "warm start";
 304         else if (phba->hba_state == LPFC_INIT_START)
 305                 state = "offline";
 306         else
 307                 state = "online";
 308
 309         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 310 }
 311
 312 static ssize_t
 313 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 314 {
 315         struct Scsi_Host *host = class_to_shost(cdev);
 316         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 317         struct completion online_compl;
 318         int status=0;
 319
 320         init_completion(&online_compl);
 321
 322         if(strncmp(buf, "online", sizeof("online") - 1) == 0)
 323                 lpfc_workq_post_event(phba, &status, &online_compl,
 324                                       LPFC_EVT_ONLINE);
 325         else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 326                 lpfc_workq_post_event(phba, &status, &online_compl,
 327                                       LPFC_EVT_OFFLINE);
 328         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 329                 lpfc_workq_post_event(phba, &status, &online_compl,
 330                                       LPFC_EVT_WARM_START);
 331         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 332                 lpfc_workq_post_event(phba, &status, &online_compl,
 333                                       LPFC_EVT_KILL);
 334         else
 335                 return -EINVAL;
 336
 337         wait_for_completion(&online_compl);
 338
 339         if (!status)
 340                 return strlen(buf);
 341         else
 342                 return -EIO;
 343 }
 344
 345 static ssize_t
 346 lpfc_poll_show(struct class_device *cdev, char *buf)
 347 {
 348         struct Scsi_Host *host = class_to_shost(cdev);
 349         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 350
 351         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 352 }
 353
 354 static ssize_t
 355 lpfc_poll_store(struct class_device *cdev, const char *buf,
 356                 size_t count)
 357 {
 358         struct Scsi_Host *host = class_to_shost(cdev);
 359         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 360         uint32_t creg_val;
 361         uint32_t old_val;
 362         int val=0;
 363
 364         if (!isdigit(buf[0]))
 365                 return -EINVAL;
 366
 367         if (sscanf(buf, "%i", &val) != 1)
 368                 return -EINVAL;
 369
 370         if ((val & 0x3) != val)
 371                 return -EINVAL;
 372
 373         spin_lock_irq(phba->host->host_lock);
 374
 375         old_val = phba->cfg_poll;
 376
 377         if (val & ENABLE_FCP_RING_POLLING) {
 378                 if ((val & DISABLE_FCP_RING_INT) &&
 379                     !(old_val & DISABLE_FCP_RING_INT)) {
 380                         creg_val = readl(phba->HCregaddr);
 381                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 382                         writel(creg_val, phba->HCregaddr);
 383                         readl(phba->HCregaddr); /* flush */
 384
 385                         lpfc_poll_start_timer(phba);
 386                 }
 387         } else if (val != 0x0) {
 388                 spin_unlock_irq(phba->host->host_lock);
 389                 return -EINVAL;
 390         }
 391
 392         if (!(val & DISABLE_FCP_RING_INT) &&
 393             (old_val & DISABLE_FCP_RING_INT))
 394         {
 395                 spin_unlock_irq(phba->host->host_lock);
 396                 del_timer(&phba->fcp_poll_timer);
 397                 spin_lock_irq(phba->host->host_lock);
 398                 creg_val = readl(phba->HCregaddr);
 399                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 400                 writel(creg_val, phba->HCregaddr);
 401                 readl(phba->HCregaddr); /* flush */
 402         }
 403
 404         phba->cfg_poll = val;
 405
 406         spin_unlock_irq(phba->host->host_lock);
 407
 408         return strlen(buf);
 409 }
 410
 411 #define lpfc_param_show(attr)   \
 412 static ssize_t \
 413 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 414 { \
 415         struct Scsi_Host *host = class_to_shost(cdev);\
 416         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 417         int val = 0;\
 418         val = phba->cfg_##attr;\
 419         return snprintf(buf, PAGE_SIZE, "%d\n",\
 420                         phba->cfg_##attr);\
 421 }
 422
 423 #define lpfc_param_hex_show(attr)       \
 424 static ssize_t \
 425 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 426 { \
 427         struct Scsi_Host *host = class_to_shost(cdev);\
 428         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 429         int val = 0;\
 430         val = phba->cfg_##attr;\
 431         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 432                         phba->cfg_##attr);\
 433 }
 434
 435 #define lpfc_param_init(attr, default, minval, maxval)  \
 436 static int \
 437 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 438 { \
 439         if (val >= minval && val <= maxval) {\
 440                 phba->cfg_##attr = val;\
 441                 return 0;\
 442         }\
 443         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 444                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 445                         "allowed range is ["#minval", "#maxval"]\n", \
 446                         phba->brd_no, val); \
 447         phba->cfg_##attr = default;\
 448         return -EINVAL;\
 449 }
 450
 451 #define lpfc_param_set(attr, default, minval, maxval)   \
 452 static int \
 453 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 454 { \
 455         if (val >= minval && val <= maxval) {\
 456                 phba->cfg_##attr = val;\
 457                 return 0;\
 458         }\
 459         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 460                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 461                         "allowed range is ["#minval", "#maxval"]\n", \
 462                         phba->brd_no, val); \
 463         return -EINVAL;\
 464 }
 465
 466 #define lpfc_param_store(attr)  \
 467 static ssize_t \
 468 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 469 { \
 470         struct Scsi_Host *host = class_to_shost(cdev);\
 471         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 472         int val=0;\
 473         if (!isdigit(buf[0]))\
 474                 return -EINVAL;\
 475         if (sscanf(buf, "%i", &val) != 1)\
 476                 return -EINVAL;\
 477         if (lpfc_##attr##_set(phba, val) == 0) \
 478                 return strlen(buf);\
 479         else \
 480                 return -EINVAL;\
 481 }
 482
 483 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 484 static int lpfc_##name = defval;\
 485 module_param(lpfc_##name, int, 0);\
 486 MODULE_PARM_DESC(lpfc_##name, desc);\
 487 lpfc_param_init(name, defval, minval, maxval)
 488
 489 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 490 static int lpfc_##name = defval;\
 491 module_param(lpfc_##name, int, 0);\
 492 MODULE_PARM_DESC(lpfc_##name, desc);\
 493 lpfc_param_show(name)\
 494 lpfc_param_init(name, defval, minval, maxval)\
 495 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 496
 497 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 498 static int lpfc_##name = defval;\
 499 module_param(lpfc_##name, int, 0);\
 500 MODULE_PARM_DESC(lpfc_##name, desc);\
 501 lpfc_param_show(name)\
 502 lpfc_param_init(name, defval, minval, maxval)\
 503 lpfc_param_set(name, defval, minval, maxval)\
 504 lpfc_param_store(name)\
 505 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 506                          lpfc_##name##_show, lpfc_##name##_store)
 507
 508 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 509 static int lpfc_##name = defval;\
 510 module_param(lpfc_##name, int, 0);\
 511 MODULE_PARM_DESC(lpfc_##name, desc);\
 512 lpfc_param_hex_show(name)\
 513 lpfc_param_init(name, defval, minval, maxval)\
 514 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 515
 516 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 517 static int lpfc_##name = defval;\
 518 module_param(lpfc_##name, int, 0);\
 519 MODULE_PARM_DESC(lpfc_##name, desc);\
 520 lpfc_param_hex_show(name)\
 521 lpfc_param_init(name, defval, minval, maxval)\
 522 lpfc_param_set(name, defval, minval, maxval)\
 523 lpfc_param_store(name)\
 524 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 525                          lpfc_##name##_show, lpfc_##name##_store)
 526
 527 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 528 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 529 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 530 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 531 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 532 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
 533 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 534 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 535 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 536 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 537                                         lpfc_option_rom_version_show, NULL);
 538 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 539                                         lpfc_num_discovered_ports_show, NULL);
 540 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 541 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 542                          NULL);
 543 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 544                          NULL);
 545 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
 546                          lpfc_board_online_show, lpfc_board_online_store);
 547 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 548                          lpfc_board_mode_show, lpfc_board_mode_store);
 549
 550 static int lpfc_poll = 0;
 551 module_param(lpfc_poll, int, 0);
 552 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 553                  " 0 - none,"
 554                  " 1 - poll with interrupts enabled"
 555                  " 3 - poll and disable FCP ring interrupts");
 556
 557 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 558                          lpfc_poll_show, lpfc_poll_store);
 559
 560 /*
 561 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 562 # deluged with LOTS of information.
 563 # You can set a bit mask to record specific types of verbose messages:
 564 #
 565 # LOG_ELS                       0x1        ELS events
 566 # LOG_DISCOVERY                 0x2        Link discovery events
 567 # LOG_MBOX                      0x4        Mailbox events
 568 # LOG_INIT                      0x8        Initialization events
 569 # LOG_LINK_EVENT                0x10       Link events
 570 # LOG_IP                        0x20       IP traffic history
 571 # LOG_FCP                       0x40       FCP traffic history
 572 # LOG_NODE                      0x80       Node table events
 573 # LOG_MISC                      0x400      Miscellaneous events
 574 # LOG_SLI                       0x800      SLI events
 575 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 576 # LOG_LIBDFC                    0x2000     LIBDFC events
 577 # LOG_ALL_MSG                   0xffff     LOG all messages
 578 */
 579 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 580
 581 /*
 582 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 583 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 584 */
 585 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 586             "Max number of FCP commands we can queue to a specific LUN");
 587
 588 /*
 589 # hba_queue_depth:  This parameter is used to limit the number of outstanding
 590 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
 591 # value is greater than the maximum number of exchanges supported by the HBA,
 592 # then maximum number of exchanges supported by the HBA is used to determine
 593 # the hba_queue_depth.
 594 */
 595 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
 596             "Max number of FCP commands we can queue to a lpfc HBA");
 597
 598 /*
 599 # Some disk devices have a "select ID" or "select Target" capability.
 600 # From a protocol standpoint "select ID" usually means select the
 601 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 602 # annex" which contains a table that maps a "select ID" (a number
 603 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 604 # older drivers, the lpfc driver scans this table from low ALPA to high
 605 # ALPA.
 606 #
 607 # Turning on the scan-down variable (on  = 1, off = 0) will
 608 # cause the lpfc driver to use an inverted table, effectively
 609 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 610 #
 611 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 612 # and will not work across a fabric. Also this parameter will take
 613 # effect only in the case when ALPA map is not available.)
 614 */
 615 LPFC_ATTR_R(scan_down, 1, 0, 1,
 616              "Start scanning for devices from highest ALPA to lowest");
 617
 618 /*
 619 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 620 # until the timer expires. Value range is [0,255]. Default value is 30.
 621 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
 622 */
 623 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
 624              "Seconds driver will hold I/O waiting for a device to come back");
 625
 626 /*
 627 # lpfc_topology:  link topology for init link
 628 #            0x0  = attempt loop mode then point-to-point
 629 #            0x01 = internal loopback mode
 630 #            0x02 = attempt point-to-point mode only
 631 #            0x04 = attempt loop mode only
 632 #            0x06 = attempt point-to-point mode then loop
 633 # Set point-to-point mode if you want to run as an N_Port.
 634 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 635 # Default value is 0.
 636 */
 637 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
 638
 639 /*
 640 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 641 # connection.
 642 #       0  = auto select (default)
 643 #       1  = 1 Gigabaud
 644 #       2  = 2 Gigabaud
 645 #       4  = 4 Gigabaud
 646 # Value range is [0,4]. Default value is 0.
 647 */
 648 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 649
 650 /*
 651 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 652 # Value range is [2,3]. Default value is 3.
 653 */
 654 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 655              "Select Fibre Channel class of service for FCP sequences");
 656
 657 /*
 658 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 659 # is [0,1]. Default value is 0.
 660 */
 661 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 662              "Use ADISC on rediscovery to authenticate FCP devices");
 663
 664 /*
 665 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 666 # range is [0,1]. Default value is 0.
 667 */
 668 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 669
 670 /*
 671 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 672 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 673 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 674 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 675 # cr_delay is set to 0.
 676 */
 677 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
 678                 "interrupt response is generated");
 679
 680 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
 681                 "interrupt response is generated");
 682
 683 /*
 684 # lpfc_multi_ring_support:  Determines how many rings to spread available
 685 # cmd/rsp IOCB entries across.
 686 # Value range is [1,2]. Default value is 1.
 687 */
 688 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
 689                 "SLI rings to spread IOCB entries across");
 690
 691 /*
 692 # lpfc_fdmi_on: controls FDMI support.
 693 #       0 = no FDMI support
 694 #       1 = support FDMI without attribute of hostname
 695 #       2 = support FDMI with attribute of hostname
 696 # Value range [0,2]. Default value is 0.
 697 */
 698 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 699
 700 /*
 701 # Specifies the maximum number of ELS cmds we can have outstanding (for
 702 # discovery). Value range is [1,64]. Default value = 32.
 703 */
 704 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
 705                  "during discovery");
 706
 707 /*
 708 # lpfc_max_luns: maximum number of LUNs per target driver will support
 709 # Value range is [1,32768]. Default value is 256.
 710 # NOTE: The SCSI layer will scan each target for this many luns
 711 */
 712 LPFC_ATTR_R(max_luns, 256, 1, 32768,
 713              "Maximum number of LUNs per target driver will support");
 714
 715 /*
 716 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
 717 # Value range is [1,255], default value is 10.
 718 */
 719 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 720              "Milliseconds driver will wait between polling FCP ring");
 721
 722 struct class_device_attribute *lpfc_host_attrs[] = {
 723         &class_device_attr_info,
 724         &class_device_attr_serialnum,
 725         &class_device_attr_modeldesc,
 726         &class_device_attr_modelname,
 727         &class_device_attr_programtype,
 728         &class_device_attr_portnum,
 729         &class_device_attr_fwrev,
 730         &class_device_attr_hdw,
 731         &class_device_attr_option_rom_version,
 732         &class_device_attr_state,
 733         &class_device_attr_num_discovered_ports,
 734         &class_device_attr_lpfc_drvr_version,
 735         &class_device_attr_lpfc_log_verbose,
 736         &class_device_attr_lpfc_lun_queue_depth,
 737         &class_device_attr_lpfc_hba_queue_depth,
 738         &class_device_attr_lpfc_nodev_tmo,
 739         &class_device_attr_lpfc_fcp_class,
 740         &class_device_attr_lpfc_use_adisc,
 741         &class_device_attr_lpfc_ack0,
 742         &class_device_attr_lpfc_topology,
 743         &class_device_attr_lpfc_scan_down,
 744         &class_device_attr_lpfc_link_speed,
 745         &class_device_attr_lpfc_cr_delay,
 746         &class_device_attr_lpfc_cr_count,
 747         &class_device_attr_lpfc_multi_ring_support,
 748         &class_device_attr_lpfc_fdmi_on,
 749         &class_device_attr_lpfc_max_luns,
 750         &class_device_attr_nport_evt_cnt,
 751         &class_device_attr_management_version,
 752         &class_device_attr_board_online,
 753         &class_device_attr_board_mode,
 754         &class_device_attr_lpfc_poll,
 755         &class_device_attr_lpfc_poll_tmo,
 756         NULL,
 757 };
 758
 759 static ssize_t
 760 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 761 {
 762         size_t buf_off;
 763         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 764                                              struct class_device, kobj));
 765         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 766
 767         if ((off + count) > FF_REG_AREA_SIZE)
 768                 return -ERANGE;
 769
 770         if (count == 0) return 0;
 771
 772         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 773                 return -EINVAL;
 774
 775         spin_lock_irq(phba->host->host_lock);
 776
 777         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 778                 spin_unlock_irq(phba->host->host_lock);
 779                 return -EPERM;
 780         }
 781
 782         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
 783                 writel(*((uint32_t *)(buf + buf_off)),
 784                        phba->ctrl_regs_memmap_p + off + buf_off);
 785
 786         spin_unlock_irq(phba->host->host_lock);
 787
 788         return count;
 789 }
 790
 791 static ssize_t
 792 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 793 {
 794         size_t buf_off;
 795         uint32_t * tmp_ptr;
 796         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 797                                              struct class_device, kobj));
 798         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 799
 800         if (off > FF_REG_AREA_SIZE)
 801                 return -ERANGE;
 802
 803         if ((off + count) > FF_REG_AREA_SIZE)
 804                 count = FF_REG_AREA_SIZE - off;
 805
 806         if (count == 0) return 0;
 807
 808         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 809                 return -EINVAL;
 810
 811         spin_lock_irq(phba->host->host_lock);
 812
 813         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
 814                 tmp_ptr = (uint32_t *)(buf + buf_off);
 815                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
 816         }
 817
 818         spin_unlock_irq(phba->host->host_lock);
 819
 820         return count;
 821 }
 822
 823 static struct bin_attribute sysfs_ctlreg_attr = {
 824         .attr = {
 825                 .name = "ctlreg",
 826                 .mode = S_IRUSR | S_IWUSR,
 827                 .owner = THIS_MODULE,
 828         },
 829         .size = 256,
 830         .read = sysfs_ctlreg_read,
 831         .write = sysfs_ctlreg_write,
 832 };
 833
 834
 835 static void
 836 sysfs_mbox_idle (struct lpfc_hba * phba)
 837 {
 838         phba->sysfs_mbox.state = SMBOX_IDLE;
 839         phba->sysfs_mbox.offset = 0;
 840
 841         if (phba->sysfs_mbox.mbox) {
 842                 mempool_free(phba->sysfs_mbox.mbox,
 843                              phba->mbox_mem_pool);
 844                 phba->sysfs_mbox.mbox = NULL;
 845         }
 846 }
 847
 848 static ssize_t
 849 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 850 {
 851         struct Scsi_Host * host =
 852                 class_to_shost(container_of(kobj, struct class_device, kobj));
 853         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
 854         struct lpfcMboxq * mbox = NULL;
 855
 856         if ((count + off) > MAILBOX_CMD_SIZE)
 857                 return -ERANGE;
 858
 859         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 860                 return -EINVAL;
 861
 862         if (count == 0)
 863                 return 0;
 864
 865         if (off == 0) {
 866                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 867                 if (!mbox)
 868                         return -ENOMEM;
 869                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
 870         }
 871
 872         spin_lock_irq(host->host_lock);
 873
 874         if (off == 0) {
 875                 if (phba->sysfs_mbox.mbox)
 876                         mempool_free(mbox, phba->mbox_mem_pool);
 877                 else
 878                         phba->sysfs_mbox.mbox = mbox;
 879                 phba->sysfs_mbox.state = SMBOX_WRITING;
 880         } else {
 881                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
 882                     phba->sysfs_mbox.offset != off           ||
 883                     phba->sysfs_mbox.mbox   == NULL ) {
 884                         sysfs_mbox_idle(phba);
 885                         spin_unlock_irq(host->host_lock);
 886                         return -EINVAL;
 887                 }
 888         }
 889
 890         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
 891                buf, count);
 892
 893         phba->sysfs_mbox.offset = off + count;
 894
 895         spin_unlock_irq(host->host_lock);
 896
 897         return count;
 898 }
 899
 900 static ssize_t
 901 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 902 {
 903         struct Scsi_Host *host =
 904                 class_to_shost(container_of(kobj, struct class_device,
 905                                             kobj));
 906         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 907         int rc;
 908
 909         if (off > sizeof(MAILBOX_t))
 910                 return -ERANGE;
 911
 912         if ((count + off) > sizeof(MAILBOX_t))
 913                 count = sizeof(MAILBOX_t) - off;
 914
 915         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 916                 return -EINVAL;
 917
 918         if (off && count == 0)
 919                 return 0;
 920
 921         spin_lock_irq(phba->host->host_lock);
 922
 923         if (off == 0 &&
 924             phba->sysfs_mbox.state  == SMBOX_WRITING &&
 925             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
 926
 927                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
 928                         /* Offline only */
 929                 case MBX_WRITE_NV:
 930                 case MBX_INIT_LINK:
 931                 case MBX_DOWN_LINK:
 932                 case MBX_CONFIG_LINK:
 933                 case MBX_CONFIG_RING:
 934                 case MBX_RESET_RING:
 935                 case MBX_UNREG_LOGIN:
 936                 case MBX_CLEAR_LA:
 937                 case MBX_DUMP_CONTEXT:
 938                 case MBX_RUN_DIAGS:
 939                 case MBX_RESTART:
 940                 case MBX_FLASH_WR_ULA:
 941                 case MBX_SET_MASK:
 942                 case MBX_SET_SLIM:
 943                 case MBX_SET_DEBUG:
 944                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 945                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
 946                                        "is illegal in on-line state\n",
 947                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
 948                                 sysfs_mbox_idle(phba);
 949                                 spin_unlock_irq(phba->host->host_lock);
 950                                 return -EPERM;
 951                         }
 952                 case MBX_LOAD_SM:
 953                 case MBX_READ_NV:
 954                 case MBX_READ_CONFIG:
 955                 case MBX_READ_RCONFIG:
 956                 case MBX_READ_STATUS:
 957                 case MBX_READ_XRI:
 958                 case MBX_READ_REV:
 959                 case MBX_READ_LNK_STAT:
 960                 case MBX_DUMP_MEMORY:
 961                 case MBX_DOWN_LOAD:
 962                 case MBX_UPDATE_CFG:
 963                 case MBX_KILL_BOARD:
 964                 case MBX_LOAD_AREA:
 965                 case MBX_LOAD_EXP_ROM:
 966                 case MBX_BEACON:
 967                 case MBX_DEL_LD_ENTRY:
 968                         break;
 969                 case MBX_READ_SPARM64:
 970                 case MBX_READ_LA:
 971                 case MBX_READ_LA64:
 972                 case MBX_REG_LOGIN:
 973                 case MBX_REG_LOGIN64:
 974                 case MBX_CONFIG_PORT:
 975                 case MBX_RUN_BIU_DIAG:
 976                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
 977                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 978                         sysfs_mbox_idle(phba);
 979                         spin_unlock_irq(phba->host->host_lock);
 980                         return -EPERM;
 981                 default:
 982                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
 983                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 984                         sysfs_mbox_idle(phba);
 985                         spin_unlock_irq(phba->host->host_lock);
 986                         return -EPERM;
 987                 }
 988
 989                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 990                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
 991
 992                         spin_unlock_irq(phba->host->host_lock);
 993                         rc = lpfc_sli_issue_mbox (phba,
 994                                                   phba->sysfs_mbox.mbox,
 995                                                   MBX_POLL);
 996                         spin_lock_irq(phba->host->host_lock);
 997
 998                 } else {
 999                         spin_unlock_irq(phba->host->host_lock);
1000                         rc = lpfc_sli_issue_mbox_wait (phba,
1001                                                        phba->sysfs_mbox.mbox,
1002                                                        phba->fc_ratov * 2);
1003                         spin_lock_irq(phba->host->host_lock);
1004                 }
1005
1006                 if (rc != MBX_SUCCESS) {
1007                         sysfs_mbox_idle(phba);
1008                         spin_unlock_irq(host->host_lock);
1009                         return -ENODEV;
1010                 }
1011                 phba->sysfs_mbox.state = SMBOX_READING;
1012         }
1013         else if (phba->sysfs_mbox.offset != off ||
1014                  phba->sysfs_mbox.state  != SMBOX_READING) {
1015                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1016                 sysfs_mbox_idle(phba);
1017                 spin_unlock_irq(host->host_lock);
1018                 return -EINVAL;
1019         }
1020
1021         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1022
1023         phba->sysfs_mbox.offset = off + count;
1024
1025         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1026                 sysfs_mbox_idle(phba);
1027
1028         spin_unlock_irq(phba->host->host_lock);
1029
1030         return count;
1031 }
1032
1033 static struct bin_attribute sysfs_mbox_attr = {
1034         .attr = {
1035                 .name = "mbox",
1036                 .mode = S_IRUSR | S_IWUSR,
1037                 .owner = THIS_MODULE,
1038         },
1039         .size = sizeof(MAILBOX_t),
1040         .read = sysfs_mbox_read,
1041         .write = sysfs_mbox_write,
1042 };
1043
1044 int
1045 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1046 {
1047         struct Scsi_Host *host = phba->host;
1048         int error;
1049
1050         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1051                                                         &sysfs_ctlreg_attr);
1052         if (error)
1053                 goto out;
1054
1055         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1056                                                         &sysfs_mbox_attr);
1057         if (error)
1058                 goto out_remove_ctlreg_attr;
1059
1060         return 0;
1061 out_remove_ctlreg_attr:
1062         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1063 out:
1064         return error;
1065 }
1066
1067 void
1068 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1069 {
1070         struct Scsi_Host *host = phba->host;
1071
1072         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1073         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1074 }
1075
1076
1077 /*
1078  * Dynamic FC Host Attributes Support
1079  */
1080
1081 static void
1082 lpfc_get_host_port_id(struct Scsi_Host *shost)
1083 {
1084         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1085         /* note: fc_myDID already in cpu endianness */
1086         fc_host_port_id(shost) = phba->fc_myDID;
1087 }
1088
1089 static void
1090 lpfc_get_host_port_type(struct Scsi_Host *shost)
1091 {
1092         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1093
1094         spin_lock_irq(shost->host_lock);
1095
1096         if (phba->hba_state == LPFC_HBA_READY) {
1097                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1098                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1099                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1100                         else
1101                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1102                 } else {
1103                         if (phba->fc_flag & FC_FABRIC)
1104                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1105                         else
1106                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1107                 }
1108         } else
1109                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1110
1111         spin_unlock_irq(shost->host_lock);
1112 }
1113
1114 static void
1115 lpfc_get_host_port_state(struct Scsi_Host *shost)
1116 {
1117         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1118
1119         spin_lock_irq(shost->host_lock);
1120
1121         if (phba->fc_flag & FC_OFFLINE_MODE)
1122                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1123         else {
1124                 switch (phba->hba_state) {
1125                 case LPFC_STATE_UNKNOWN:
1126                 case LPFC_WARM_START:
1127                 case LPFC_INIT_START:
1128                 case LPFC_INIT_MBX_CMDS:
1129                 case LPFC_LINK_DOWN:
1130                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1131                         break;
1132                 case LPFC_LINK_UP:
1133                 case LPFC_LOCAL_CFG_LINK:
1134                 case LPFC_FLOGI:
1135                 case LPFC_FABRIC_CFG_LINK:
1136                 case LPFC_NS_REG:
1137                 case LPFC_NS_QRY:
1138                 case LPFC_BUILD_DISC_LIST:
1139                 case LPFC_DISC_AUTH:
1140                 case LPFC_CLEAR_LA:
1141                 case LPFC_HBA_READY:
1142                         /* Links up, beyond this port_type reports state */
1143                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1144                         break;
1145                 case LPFC_HBA_ERROR:
1146                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1147                         break;
1148                 default:
1149                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1150                         break;
1151                 }
1152         }
1153
1154         spin_unlock_irq(shost->host_lock);
1155 }
1156
1157 static void
1158 lpfc_get_host_speed(struct Scsi_Host *shost)
1159 {
1160         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1161
1162         spin_lock_irq(shost->host_lock);
1163
1164         if (phba->hba_state == LPFC_HBA_READY) {
1165                 switch(phba->fc_linkspeed) {
1166                         case LA_1GHZ_LINK:
1167                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1168                         break;
1169                         case LA_2GHZ_LINK:
1170                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1171                         break;
1172                         case LA_4GHZ_LINK:
1173                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1174                         break;
1175                         default:
1176                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1177                         break;
1178                 }
1179         }
1180
1181         spin_unlock_irq(shost->host_lock);
1182 }
1183
1184 static void
1185 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1186 {
1187         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1188         u64 node_name;
1189
1190         spin_lock_irq(shost->host_lock);
1191
1192         if ((phba->fc_flag & FC_FABRIC) ||
1193             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1194              (phba->fc_flag & FC_PUBLIC_LOOP)))
1195                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1196         else
1197                 /* fabric is local port if there is no F/FL_Port */
1198                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1199
1200         spin_unlock_irq(shost->host_lock);
1201
1202         fc_host_fabric_name(shost) = node_name;
1203 }
1204
1205
1206 static struct fc_host_statistics *
1207 lpfc_get_stats(struct Scsi_Host *shost)
1208 {
1209         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1210         struct lpfc_sli *psli = &phba->sli;
1211         struct fc_host_statistics *hs = &phba->link_stats;
1212         LPFC_MBOXQ_t *pmboxq;
1213         MAILBOX_t *pmb;
1214         int rc = 0;
1215
1216         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1217         if (!pmboxq)
1218                 return NULL;
1219         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1220
1221         pmb = &pmboxq->mb;
1222         pmb->mbxCommand = MBX_READ_STATUS;
1223         pmb->mbxOwner = OWN_HOST;
1224         pmboxq->context1 = NULL;
1225
1226         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1227                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1228                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1229         else
1230                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1231
1232         if (rc != MBX_SUCCESS) {
1233                 if (rc == MBX_TIMEOUT)
1234                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1235                 else
1236                         mempool_free(pmboxq, phba->mbox_mem_pool);
1237                 return NULL;
1238         }
1239
1240         memset(hs, 0, sizeof (struct fc_host_statistics));
1241
1242         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1243         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1244         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1245         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1246
1247         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1248         pmb->mbxCommand = MBX_READ_LNK_STAT;
1249         pmb->mbxOwner = OWN_HOST;
1250         pmboxq->context1 = NULL;
1251
1252         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1253             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1254                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1255         else
1256                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1257
1258         if (rc != MBX_SUCCESS) {
1259                 if (rc == MBX_TIMEOUT)
1260                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1261                 else
1262                         mempool_free( pmboxq, phba->mbox_mem_pool);
1263                 return NULL;
1264         }
1265
1266         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1267         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1268         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1269         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1270         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1271         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1272         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1273
1274         if (phba->fc_topology == TOPOLOGY_LOOP) {
1275                 hs->lip_count = (phba->fc_eventTag >> 1);
1276                 hs->nos_count = -1;
1277         } else {
1278                 hs->lip_count = -1;
1279                 hs->nos_count = (phba->fc_eventTag >> 1);
1280         }
1281
1282         hs->dumped_frames = -1;
1283
1284 /* FIX ME */
1285         /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1286
1287         return hs;
1288 }
1289
1290
1291 /*
1292  * The LPFC driver treats linkdown handling as target loss events so there
1293  * are no sysfs handlers for link_down_tmo.
1294  */
1295 static void
1296 lpfc_get_starget_port_id(struct scsi_target *starget)
1297 {
1298         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1299         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1300         uint32_t did = -1;
1301         struct lpfc_nodelist *ndlp = NULL;
1302
1303         spin_lock_irq(shost->host_lock);
1304         /* Search the mapped list for this target ID */
1305         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1306                 if (starget->id == ndlp->nlp_sid) {
1307                         did = ndlp->nlp_DID;
1308                         break;
1309                 }
1310         }
1311         spin_unlock_irq(shost->host_lock);
1312
1313         fc_starget_port_id(starget) = did;
1314 }
1315
1316 static void
1317 lpfc_get_starget_node_name(struct scsi_target *starget)
1318 {
1319         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1320         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1321         u64 node_name = 0;
1322         struct lpfc_nodelist *ndlp = NULL;
1323
1324         spin_lock_irq(shost->host_lock);
1325         /* Search the mapped list for this target ID */
1326         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1327                 if (starget->id == ndlp->nlp_sid) {
1328                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1329                         break;
1330                 }
1331         }
1332         spin_unlock_irq(shost->host_lock);
1333
1334         fc_starget_node_name(starget) = node_name;
1335 }
1336
1337 static void
1338 lpfc_get_starget_port_name(struct scsi_target *starget)
1339 {
1340         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1341         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1342         u64 port_name = 0;
1343         struct lpfc_nodelist *ndlp = NULL;
1344
1345         spin_lock_irq(shost->host_lock);
1346         /* Search the mapped list for this target ID */
1347         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1348                 if (starget->id == ndlp->nlp_sid) {
1349                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1350                         break;
1351                 }
1352         }
1353         spin_unlock_irq(shost->host_lock);
1354
1355         fc_starget_port_name(starget) = port_name;
1356 }
1357
1358 static void
1359 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1360 {
1361         /*
1362          * Return the driver's global value for device loss timeout plus
1363          * five seconds to allow the driver's nodev timer to run.
1364          */
1365         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1366 }
1367
1368 static void
1369 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1370 {
1371         /*
1372          * The driver doesn't have a per-target timeout setting.  Set
1373          * this value globally. lpfc_nodev_tmo should be greater then 0.
1374          */
1375         if (timeout)
1376                 lpfc_nodev_tmo = timeout;
1377         else
1378                 lpfc_nodev_tmo = 1;
1379         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1380 }
1381
1382
1383 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1384 static ssize_t                                                          \
1385 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1386 {                                                                       \
1387         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1388         struct lpfc_rport_data *rdata = rport->hostdata;                \
1389         return snprintf(buf, sz, format_string,                         \
1390                 (rdata->target) ? cast rdata->target->field : 0);       \
1391 }
1392
1393 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1394         lpfc_rport_show_function(field, format_string, sz, )            \
1395 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1396
1397
1398 struct fc_function_template lpfc_transport_functions = {
1399         /* fixed attributes the driver supports */
1400         .show_host_node_name = 1,
1401         .show_host_port_name = 1,
1402         .show_host_supported_classes = 1,
1403         .show_host_supported_fc4s = 1,
1404         .show_host_symbolic_name = 1,
1405         .show_host_supported_speeds = 1,
1406         .show_host_maxframe_size = 1,
1407
1408         /* dynamic attributes the driver supports */
1409         .get_host_port_id = lpfc_get_host_port_id,
1410         .show_host_port_id = 1,
1411
1412         .get_host_port_type = lpfc_get_host_port_type,
1413         .show_host_port_type = 1,
1414
1415         .get_host_port_state = lpfc_get_host_port_state,
1416         .show_host_port_state = 1,
1417
1418         /* active_fc4s is shown but doesn't change (thus no get function) */
1419         .show_host_active_fc4s = 1,
1420
1421         .get_host_speed = lpfc_get_host_speed,
1422         .show_host_speed = 1,
1423
1424         .get_host_fabric_name = lpfc_get_host_fabric_name,
1425         .show_host_fabric_name = 1,
1426
1427         /*
1428          * The LPFC driver treats linkdown handling as target loss events
1429          * so there are no sysfs handlers for link_down_tmo.
1430          */
1431
1432         .get_fc_host_stats = lpfc_get_stats,
1433
1434         /* the LPFC driver doesn't support resetting stats yet */
1435
1436         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1437         .show_rport_maxframe_size = 1,
1438         .show_rport_supported_classes = 1,
1439
1440         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1441         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1442         .show_rport_dev_loss_tmo = 1,
1443
1444         .get_starget_port_id  = lpfc_get_starget_port_id,
1445         .show_starget_port_id = 1,
1446
1447         .get_starget_node_name = lpfc_get_starget_node_name,
1448         .show_starget_node_name = 1,
1449
1450         .get_starget_port_name = lpfc_get_starget_port_name,
1451         .show_starget_port_name = 1,
1452
1453         .issue_fc_host_lip = lpfc_issue_lip,
1454 };
1455
1456 void
1457 lpfc_get_cfgparam(struct lpfc_hba *phba)
1458 {
1459         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1460         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1461         lpfc_cr_count_init(phba, lpfc_cr_count);
1462         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1463         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1464         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1465         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1466         lpfc_ack0_init(phba, lpfc_ack0);
1467         lpfc_topology_init(phba, lpfc_topology);
1468         lpfc_scan_down_init(phba, lpfc_scan_down);
1469         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1470         lpfc_link_speed_init(phba, lpfc_link_speed);
1471         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1472         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1473         lpfc_max_luns_init(phba, lpfc_max_luns);
1474         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1475
1476         phba->cfg_poll = lpfc_poll;
1477
1478         /*
1479          * The total number of segments is the configuration value plus 2
1480          * since the IOCB need a command and response bde.
1481          */
1482         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1483
1484         /*
1485          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1486          * used to create the sg_dma_buf_pool must be dynamically calculated
1487          */
1488         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1489                         sizeof(struct fcp_rsp) +
1490                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1491
1492         switch (phba->pcidev->device) {
1493         case PCI_DEVICE_ID_LP101:
1494         case PCI_DEVICE_ID_BSMB:
1495         case PCI_DEVICE_ID_ZSMB:
1496                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1497                 break;
1498         case PCI_DEVICE_ID_RFLY:
1499         case PCI_DEVICE_ID_PFLY:
1500         case PCI_DEVICE_ID_BMID:
1501         case PCI_DEVICE_ID_ZMID:
1502         case PCI_DEVICE_ID_TFLY:
1503                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1504                 break;
1505         default:
1506                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1507         }
1508
1509         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1510                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1511
1512         return;
1513 }