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, LPFC_MBOX_TMO * 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 int
 247 lpfc_selective_reset(struct lpfc_hba *phba)
 248 {
 249         struct completion online_compl;
 250         int status = 0;
 251
 252         init_completion(&online_compl);
 253         lpfc_workq_post_event(phba, &status, &online_compl,
 254                               LPFC_EVT_OFFLINE);
 255         wait_for_completion(&online_compl);
 256
 257         if (status != 0)
 258                 return -EIO;
 259
 260         init_completion(&online_compl);
 261         lpfc_workq_post_event(phba, &status, &online_compl,
 262                               LPFC_EVT_ONLINE);
 263         wait_for_completion(&online_compl);
 264
 265         if (status != 0)
 266                 return -EIO;
 267
 268         return 0;
 269 }
 270
 271 static ssize_t
 272 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 273 {
 274         struct Scsi_Host *host = class_to_shost(cdev);
 275         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 276         int status = -EINVAL;
 277
 278         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 279                 status = lpfc_selective_reset(phba);
 280
 281         if (status == 0)
 282                 return strlen(buf);
 283         else
 284                 return status;
 285 }
 286
 287 static ssize_t
 288 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 289 {
 290         struct Scsi_Host *host = class_to_shost(cdev);
 291         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 292         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 293 }
 294
 295 static ssize_t
 296 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 297 {
 298         struct Scsi_Host *host = class_to_shost(cdev);
 299         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 300         char  * state;
 301
 302         if (phba->hba_state == LPFC_HBA_ERROR)
 303                 state = "error";
 304         else if (phba->hba_state == LPFC_WARM_START)
 305                 state = "warm start";
 306         else if (phba->hba_state == LPFC_INIT_START)
 307                 state = "offline";
 308         else
 309                 state = "online";
 310
 311         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 312 }
 313
 314 static ssize_t
 315 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 316 {
 317         struct Scsi_Host *host = class_to_shost(cdev);
 318         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 319         struct completion online_compl;
 320         int status=0;
 321
 322         init_completion(&online_compl);
 323
 324         if(strncmp(buf, "online", sizeof("online") - 1) == 0)
 325                 lpfc_workq_post_event(phba, &status, &online_compl,
 326                                       LPFC_EVT_ONLINE);
 327         else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 328                 lpfc_workq_post_event(phba, &status, &online_compl,
 329                                       LPFC_EVT_OFFLINE);
 330         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 331                 lpfc_workq_post_event(phba, &status, &online_compl,
 332                                       LPFC_EVT_WARM_START);
 333         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 334                 lpfc_workq_post_event(phba, &status, &online_compl,
 335                                       LPFC_EVT_KILL);
 336         else
 337                 return -EINVAL;
 338
 339         wait_for_completion(&online_compl);
 340
 341         if (!status)
 342                 return strlen(buf);
 343         else
 344                 return -EIO;
 345 }
 346
 347 static ssize_t
 348 lpfc_poll_show(struct class_device *cdev, char *buf)
 349 {
 350         struct Scsi_Host *host = class_to_shost(cdev);
 351         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 352
 353         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 354 }
 355
 356 static ssize_t
 357 lpfc_poll_store(struct class_device *cdev, const char *buf,
 358                 size_t count)
 359 {
 360         struct Scsi_Host *host = class_to_shost(cdev);
 361         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 362         uint32_t creg_val;
 363         uint32_t old_val;
 364         int val=0;
 365
 366         if (!isdigit(buf[0]))
 367                 return -EINVAL;
 368
 369         if (sscanf(buf, "%i", &val) != 1)
 370                 return -EINVAL;
 371
 372         if ((val & 0x3) != val)
 373                 return -EINVAL;
 374
 375         spin_lock_irq(phba->host->host_lock);
 376
 377         old_val = phba->cfg_poll;
 378
 379         if (val & ENABLE_FCP_RING_POLLING) {
 380                 if ((val & DISABLE_FCP_RING_INT) &&
 381                     !(old_val & DISABLE_FCP_RING_INT)) {
 382                         creg_val = readl(phba->HCregaddr);
 383                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 384                         writel(creg_val, phba->HCregaddr);
 385                         readl(phba->HCregaddr); /* flush */
 386
 387                         lpfc_poll_start_timer(phba);
 388                 }
 389         } else if (val != 0x0) {
 390                 spin_unlock_irq(phba->host->host_lock);
 391                 return -EINVAL;
 392         }
 393
 394         if (!(val & DISABLE_FCP_RING_INT) &&
 395             (old_val & DISABLE_FCP_RING_INT))
 396         {
 397                 spin_unlock_irq(phba->host->host_lock);
 398                 del_timer(&phba->fcp_poll_timer);
 399                 spin_lock_irq(phba->host->host_lock);
 400                 creg_val = readl(phba->HCregaddr);
 401                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 402                 writel(creg_val, phba->HCregaddr);
 403                 readl(phba->HCregaddr); /* flush */
 404         }
 405
 406         phba->cfg_poll = val;
 407
 408         spin_unlock_irq(phba->host->host_lock);
 409
 410         return strlen(buf);
 411 }
 412
 413 #define lpfc_param_show(attr)   \
 414 static ssize_t \
 415 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 416 { \
 417         struct Scsi_Host *host = class_to_shost(cdev);\
 418         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 419         int val = 0;\
 420         val = phba->cfg_##attr;\
 421         return snprintf(buf, PAGE_SIZE, "%d\n",\
 422                         phba->cfg_##attr);\
 423 }
 424
 425 #define lpfc_param_hex_show(attr)       \
 426 static ssize_t \
 427 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 428 { \
 429         struct Scsi_Host *host = class_to_shost(cdev);\
 430         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 431         int val = 0;\
 432         val = phba->cfg_##attr;\
 433         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 434                         phba->cfg_##attr);\
 435 }
 436
 437 #define lpfc_param_init(attr, default, minval, maxval)  \
 438 static int \
 439 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 440 { \
 441         if (val >= minval && val <= maxval) {\
 442                 phba->cfg_##attr = val;\
 443                 return 0;\
 444         }\
 445         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 446                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 447                         "allowed range is ["#minval", "#maxval"]\n", \
 448                         phba->brd_no, val); \
 449         phba->cfg_##attr = default;\
 450         return -EINVAL;\
 451 }
 452
 453 #define lpfc_param_set(attr, default, minval, maxval)   \
 454 static int \
 455 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 456 { \
 457         if (val >= minval && val <= maxval) {\
 458                 phba->cfg_##attr = val;\
 459                 return 0;\
 460         }\
 461         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 462                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 463                         "allowed range is ["#minval", "#maxval"]\n", \
 464                         phba->brd_no, val); \
 465         return -EINVAL;\
 466 }
 467
 468 #define lpfc_param_store(attr)  \
 469 static ssize_t \
 470 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 471 { \
 472         struct Scsi_Host *host = class_to_shost(cdev);\
 473         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
 474         int val=0;\
 475         if (!isdigit(buf[0]))\
 476                 return -EINVAL;\
 477         if (sscanf(buf, "%i", &val) != 1)\
 478                 return -EINVAL;\
 479         if (lpfc_##attr##_set(phba, val) == 0) \
 480                 return strlen(buf);\
 481         else \
 482                 return -EINVAL;\
 483 }
 484
 485 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 486 static int lpfc_##name = defval;\
 487 module_param(lpfc_##name, int, 0);\
 488 MODULE_PARM_DESC(lpfc_##name, desc);\
 489 lpfc_param_init(name, defval, minval, maxval)
 490
 491 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 492 static int lpfc_##name = defval;\
 493 module_param(lpfc_##name, int, 0);\
 494 MODULE_PARM_DESC(lpfc_##name, desc);\
 495 lpfc_param_show(name)\
 496 lpfc_param_init(name, defval, minval, maxval)\
 497 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 498
 499 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 500 static int lpfc_##name = defval;\
 501 module_param(lpfc_##name, int, 0);\
 502 MODULE_PARM_DESC(lpfc_##name, desc);\
 503 lpfc_param_show(name)\
 504 lpfc_param_init(name, defval, minval, maxval)\
 505 lpfc_param_set(name, defval, minval, maxval)\
 506 lpfc_param_store(name)\
 507 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 508                          lpfc_##name##_show, lpfc_##name##_store)
 509
 510 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 511 static int lpfc_##name = defval;\
 512 module_param(lpfc_##name, int, 0);\
 513 MODULE_PARM_DESC(lpfc_##name, desc);\
 514 lpfc_param_hex_show(name)\
 515 lpfc_param_init(name, defval, minval, maxval)\
 516 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 517
 518 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 519 static int lpfc_##name = defval;\
 520 module_param(lpfc_##name, int, 0);\
 521 MODULE_PARM_DESC(lpfc_##name, desc);\
 522 lpfc_param_hex_show(name)\
 523 lpfc_param_init(name, defval, minval, maxval)\
 524 lpfc_param_set(name, defval, minval, maxval)\
 525 lpfc_param_store(name)\
 526 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 527                          lpfc_##name##_show, lpfc_##name##_store)
 528
 529 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 530 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 531 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 532 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 533 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 534 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
 535 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 536 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 537 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 538 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 539                                         lpfc_option_rom_version_show, NULL);
 540 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 541                                         lpfc_num_discovered_ports_show, NULL);
 542 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 543 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 544                          NULL);
 545 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 546                          NULL);
 547 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 548                          lpfc_board_mode_show, lpfc_board_mode_store);
 549 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 550
 551 static int lpfc_poll = 0;
 552 module_param(lpfc_poll, int, 0);
 553 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 554                  " 0 - none,"
 555                  " 1 - poll with interrupts enabled"
 556                  " 3 - poll and disable FCP ring interrupts");
 557
 558 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 559                          lpfc_poll_show, lpfc_poll_store);
 560
 561 /*
 562 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 563 # deluged with LOTS of information.
 564 # You can set a bit mask to record specific types of verbose messages:
 565 #
 566 # LOG_ELS                       0x1        ELS events
 567 # LOG_DISCOVERY                 0x2        Link discovery events
 568 # LOG_MBOX                      0x4        Mailbox events
 569 # LOG_INIT                      0x8        Initialization events
 570 # LOG_LINK_EVENT                0x10       Link events
 571 # LOG_IP                        0x20       IP traffic history
 572 # LOG_FCP                       0x40       FCP traffic history
 573 # LOG_NODE                      0x80       Node table events
 574 # LOG_MISC                      0x400      Miscellaneous events
 575 # LOG_SLI                       0x800      SLI events
 576 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 577 # LOG_LIBDFC                    0x2000     LIBDFC events
 578 # LOG_ALL_MSG                   0xffff     LOG all messages
 579 */
 580 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 581
 582 /*
 583 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 584 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 585 */
 586 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 587             "Max number of FCP commands we can queue to a specific LUN");
 588
 589 /*
 590 # hba_queue_depth:  This parameter is used to limit the number of outstanding
 591 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
 592 # value is greater than the maximum number of exchanges supported by the HBA,
 593 # then maximum number of exchanges supported by the HBA is used to determine
 594 # the hba_queue_depth.
 595 */
 596 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
 597             "Max number of FCP commands we can queue to a lpfc HBA");
 598
 599 /*
 600 # Some disk devices have a "select ID" or "select Target" capability.
 601 # From a protocol standpoint "select ID" usually means select the
 602 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 603 # annex" which contains a table that maps a "select ID" (a number
 604 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 605 # older drivers, the lpfc driver scans this table from low ALPA to high
 606 # ALPA.
 607 #
 608 # Turning on the scan-down variable (on  = 1, off = 0) will
 609 # cause the lpfc driver to use an inverted table, effectively
 610 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 611 #
 612 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 613 # and will not work across a fabric. Also this parameter will take
 614 # effect only in the case when ALPA map is not available.)
 615 */
 616 LPFC_ATTR_R(scan_down, 1, 0, 1,
 617              "Start scanning for devices from highest ALPA to lowest");
 618
 619 /*
 620 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 621 # until the timer expires. Value range is [0,255]. Default value is 30.
 622 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
 623 */
 624 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
 625              "Seconds driver will hold I/O waiting for a device to come back");
 626
 627 /*
 628 # lpfc_topology:  link topology for init link
 629 #            0x0  = attempt loop mode then point-to-point
 630 #            0x01 = internal loopback mode
 631 #            0x02 = attempt point-to-point mode only
 632 #            0x04 = attempt loop mode only
 633 #            0x06 = attempt point-to-point mode then loop
 634 # Set point-to-point mode if you want to run as an N_Port.
 635 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 636 # Default value is 0.
 637 */
 638 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
 639
 640 /*
 641 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 642 # connection.
 643 #       0  = auto select (default)
 644 #       1  = 1 Gigabaud
 645 #       2  = 2 Gigabaud
 646 #       4  = 4 Gigabaud
 647 # Value range is [0,4]. Default value is 0.
 648 */
 649 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 650
 651 /*
 652 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 653 # Value range is [2,3]. Default value is 3.
 654 */
 655 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 656              "Select Fibre Channel class of service for FCP sequences");
 657
 658 /*
 659 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 660 # is [0,1]. Default value is 0.
 661 */
 662 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 663              "Use ADISC on rediscovery to authenticate FCP devices");
 664
 665 /*
 666 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 667 # range is [0,1]. Default value is 0.
 668 */
 669 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 670
 671 /*
 672 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 673 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 674 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 675 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 676 # cr_delay is set to 0.
 677 */
 678 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
 679                 "interrupt response is generated");
 680
 681 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
 682                 "interrupt response is generated");
 683
 684 /*
 685 # lpfc_multi_ring_support:  Determines how many rings to spread available
 686 # cmd/rsp IOCB entries across.
 687 # Value range is [1,2]. Default value is 1.
 688 */
 689 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
 690                 "SLI rings to spread IOCB entries across");
 691
 692 /*
 693 # lpfc_fdmi_on: controls FDMI support.
 694 #       0 = no FDMI support
 695 #       1 = support FDMI without attribute of hostname
 696 #       2 = support FDMI with attribute of hostname
 697 # Value range [0,2]. Default value is 0.
 698 */
 699 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 700
 701 /*
 702 # Specifies the maximum number of ELS cmds we can have outstanding (for
 703 # discovery). Value range is [1,64]. Default value = 32.
 704 */
 705 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
 706                  "during discovery");
 707
 708 /*
 709 # lpfc_max_luns: maximum allowed LUN.
 710 # Value range is [0,65535]. Default value is 255.
 711 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
 712 */
 713 LPFC_ATTR_R(max_luns, 255, 0, 65535,
 714              "Maximum allowed LUN");
 715
 716 /*
 717 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
 718 # Value range is [1,255], default value is 10.
 719 */
 720 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 721              "Milliseconds driver will wait between polling FCP ring");
 722
 723 struct class_device_attribute *lpfc_host_attrs[] = {
 724         &class_device_attr_info,
 725         &class_device_attr_serialnum,
 726         &class_device_attr_modeldesc,
 727         &class_device_attr_modelname,
 728         &class_device_attr_programtype,
 729         &class_device_attr_portnum,
 730         &class_device_attr_fwrev,
 731         &class_device_attr_hdw,
 732         &class_device_attr_option_rom_version,
 733         &class_device_attr_state,
 734         &class_device_attr_num_discovered_ports,
 735         &class_device_attr_lpfc_drvr_version,
 736         &class_device_attr_lpfc_log_verbose,
 737         &class_device_attr_lpfc_lun_queue_depth,
 738         &class_device_attr_lpfc_hba_queue_depth,
 739         &class_device_attr_lpfc_nodev_tmo,
 740         &class_device_attr_lpfc_fcp_class,
 741         &class_device_attr_lpfc_use_adisc,
 742         &class_device_attr_lpfc_ack0,
 743         &class_device_attr_lpfc_topology,
 744         &class_device_attr_lpfc_scan_down,
 745         &class_device_attr_lpfc_link_speed,
 746         &class_device_attr_lpfc_cr_delay,
 747         &class_device_attr_lpfc_cr_count,
 748         &class_device_attr_lpfc_multi_ring_support,
 749         &class_device_attr_lpfc_fdmi_on,
 750         &class_device_attr_lpfc_max_luns,
 751         &class_device_attr_nport_evt_cnt,
 752         &class_device_attr_management_version,
 753         &class_device_attr_board_mode,
 754         &class_device_attr_issue_reset,
 755         &class_device_attr_lpfc_poll,
 756         &class_device_attr_lpfc_poll_tmo,
 757         NULL,
 758 };
 759
 760 static ssize_t
 761 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 762 {
 763         size_t buf_off;
 764         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 765                                              struct class_device, kobj));
 766         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 767
 768         if ((off + count) > FF_REG_AREA_SIZE)
 769                 return -ERANGE;
 770
 771         if (count == 0) return 0;
 772
 773         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 774                 return -EINVAL;
 775
 776         spin_lock_irq(phba->host->host_lock);
 777
 778         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 779                 spin_unlock_irq(phba->host->host_lock);
 780                 return -EPERM;
 781         }
 782
 783         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
 784                 writel(*((uint32_t *)(buf + buf_off)),
 785                        phba->ctrl_regs_memmap_p + off + buf_off);
 786
 787         spin_unlock_irq(phba->host->host_lock);
 788
 789         return count;
 790 }
 791
 792 static ssize_t
 793 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 794 {
 795         size_t buf_off;
 796         uint32_t * tmp_ptr;
 797         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 798                                              struct class_device, kobj));
 799         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 800
 801         if (off > FF_REG_AREA_SIZE)
 802                 return -ERANGE;
 803
 804         if ((off + count) > FF_REG_AREA_SIZE)
 805                 count = FF_REG_AREA_SIZE - off;
 806
 807         if (count == 0) return 0;
 808
 809         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 810                 return -EINVAL;
 811
 812         spin_lock_irq(phba->host->host_lock);
 813
 814         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
 815                 tmp_ptr = (uint32_t *)(buf + buf_off);
 816                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
 817         }
 818
 819         spin_unlock_irq(phba->host->host_lock);
 820
 821         return count;
 822 }
 823
 824 static struct bin_attribute sysfs_ctlreg_attr = {
 825         .attr = {
 826                 .name = "ctlreg",
 827                 .mode = S_IRUSR | S_IWUSR,
 828                 .owner = THIS_MODULE,
 829         },
 830         .size = 256,
 831         .read = sysfs_ctlreg_read,
 832         .write = sysfs_ctlreg_write,
 833 };
 834
 835
 836 static void
 837 sysfs_mbox_idle (struct lpfc_hba * phba)
 838 {
 839         phba->sysfs_mbox.state = SMBOX_IDLE;
 840         phba->sysfs_mbox.offset = 0;
 841
 842         if (phba->sysfs_mbox.mbox) {
 843                 mempool_free(phba->sysfs_mbox.mbox,
 844                              phba->mbox_mem_pool);
 845                 phba->sysfs_mbox.mbox = NULL;
 846         }
 847 }
 848
 849 static ssize_t
 850 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 851 {
 852         struct Scsi_Host * host =
 853                 class_to_shost(container_of(kobj, struct class_device, kobj));
 854         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
 855         struct lpfcMboxq * mbox = NULL;
 856
 857         if ((count + off) > MAILBOX_CMD_SIZE)
 858                 return -ERANGE;
 859
 860         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 861                 return -EINVAL;
 862
 863         if (count == 0)
 864                 return 0;
 865
 866         if (off == 0) {
 867                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 868                 if (!mbox)
 869                         return -ENOMEM;
 870                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
 871         }
 872
 873         spin_lock_irq(host->host_lock);
 874
 875         if (off == 0) {
 876                 if (phba->sysfs_mbox.mbox)
 877                         mempool_free(mbox, phba->mbox_mem_pool);
 878                 else
 879                         phba->sysfs_mbox.mbox = mbox;
 880                 phba->sysfs_mbox.state = SMBOX_WRITING;
 881         } else {
 882                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
 883                     phba->sysfs_mbox.offset != off           ||
 884                     phba->sysfs_mbox.mbox   == NULL ) {
 885                         sysfs_mbox_idle(phba);
 886                         spin_unlock_irq(host->host_lock);
 887                         return -EAGAIN;
 888                 }
 889         }
 890
 891         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
 892                buf, count);
 893
 894         phba->sysfs_mbox.offset = off + count;
 895
 896         spin_unlock_irq(host->host_lock);
 897
 898         return count;
 899 }
 900
 901 static ssize_t
 902 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 903 {
 904         struct Scsi_Host *host =
 905                 class_to_shost(container_of(kobj, struct class_device,
 906                                             kobj));
 907         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
 908         int rc;
 909
 910         if (off > sizeof(MAILBOX_t))
 911                 return -ERANGE;
 912
 913         if ((count + off) > sizeof(MAILBOX_t))
 914                 count = sizeof(MAILBOX_t) - off;
 915
 916         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 917                 return -EINVAL;
 918
 919         if (off && count == 0)
 920                 return 0;
 921
 922         spin_lock_irq(phba->host->host_lock);
 923
 924         if (off == 0 &&
 925             phba->sysfs_mbox.state  == SMBOX_WRITING &&
 926             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
 927
 928                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
 929                         /* Offline only */
 930                 case MBX_WRITE_NV:
 931                 case MBX_INIT_LINK:
 932                 case MBX_DOWN_LINK:
 933                 case MBX_CONFIG_LINK:
 934                 case MBX_CONFIG_RING:
 935                 case MBX_RESET_RING:
 936                 case MBX_UNREG_LOGIN:
 937                 case MBX_CLEAR_LA:
 938                 case MBX_DUMP_CONTEXT:
 939                 case MBX_RUN_DIAGS:
 940                 case MBX_RESTART:
 941                 case MBX_FLASH_WR_ULA:
 942                 case MBX_SET_MASK:
 943                 case MBX_SET_SLIM:
 944                 case MBX_SET_DEBUG:
 945                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 946                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
 947                                        "is illegal in on-line state\n",
 948                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
 949                                 sysfs_mbox_idle(phba);
 950                                 spin_unlock_irq(phba->host->host_lock);
 951                                 return -EPERM;
 952                         }
 953                 case MBX_LOAD_SM:
 954                 case MBX_READ_NV:
 955                 case MBX_READ_CONFIG:
 956                 case MBX_READ_RCONFIG:
 957                 case MBX_READ_STATUS:
 958                 case MBX_READ_XRI:
 959                 case MBX_READ_REV:
 960                 case MBX_READ_LNK_STAT:
 961                 case MBX_DUMP_MEMORY:
 962                 case MBX_DOWN_LOAD:
 963                 case MBX_UPDATE_CFG:
 964                 case MBX_KILL_BOARD:
 965                 case MBX_LOAD_AREA:
 966                 case MBX_LOAD_EXP_ROM:
 967                 case MBX_BEACON:
 968                 case MBX_DEL_LD_ENTRY:
 969                         break;
 970                 case MBX_READ_SPARM64:
 971                 case MBX_READ_LA:
 972                 case MBX_READ_LA64:
 973                 case MBX_REG_LOGIN:
 974                 case MBX_REG_LOGIN64:
 975                 case MBX_CONFIG_PORT:
 976                 case MBX_RUN_BIU_DIAG:
 977                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
 978                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 979                         sysfs_mbox_idle(phba);
 980                         spin_unlock_irq(phba->host->host_lock);
 981                         return -EPERM;
 982                 default:
 983                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
 984                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 985                         sysfs_mbox_idle(phba);
 986                         spin_unlock_irq(phba->host->host_lock);
 987                         return -EPERM;
 988                 }
 989
 990                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 991                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
 992
 993                         spin_unlock_irq(phba->host->host_lock);
 994                         rc = lpfc_sli_issue_mbox (phba,
 995                                                   phba->sysfs_mbox.mbox,
 996                                                   MBX_POLL);
 997                         spin_lock_irq(phba->host->host_lock);
 998
 999                 } else {
1000                         spin_unlock_irq(phba->host->host_lock);
1001                         rc = lpfc_sli_issue_mbox_wait (phba,
1002                                                        phba->sysfs_mbox.mbox,
1003                                 lpfc_mbox_tmo_val(phba,
1004                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1005                         spin_lock_irq(phba->host->host_lock);
1006                 }
1007
1008                 if (rc != MBX_SUCCESS) {
1009                         sysfs_mbox_idle(phba);
1010                         spin_unlock_irq(host->host_lock);
1011                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1012                 }
1013                 phba->sysfs_mbox.state = SMBOX_READING;
1014         }
1015         else if (phba->sysfs_mbox.offset != off ||
1016                  phba->sysfs_mbox.state  != SMBOX_READING) {
1017                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1018                 sysfs_mbox_idle(phba);
1019                 spin_unlock_irq(host->host_lock);
1020                 return -EAGAIN;
1021         }
1022
1023         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1024
1025         phba->sysfs_mbox.offset = off + count;
1026
1027         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1028                 sysfs_mbox_idle(phba);
1029
1030         spin_unlock_irq(phba->host->host_lock);
1031
1032         return count;
1033 }
1034
1035 static struct bin_attribute sysfs_mbox_attr = {
1036         .attr = {
1037                 .name = "mbox",
1038                 .mode = S_IRUSR | S_IWUSR,
1039                 .owner = THIS_MODULE,
1040         },
1041         .size = sizeof(MAILBOX_t),
1042         .read = sysfs_mbox_read,
1043         .write = sysfs_mbox_write,
1044 };
1045
1046 int
1047 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1048 {
1049         struct Scsi_Host *host = phba->host;
1050         int error;
1051
1052         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1053                                                         &sysfs_ctlreg_attr);
1054         if (error)
1055                 goto out;
1056
1057         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1058                                                         &sysfs_mbox_attr);
1059         if (error)
1060                 goto out_remove_ctlreg_attr;
1061
1062         return 0;
1063 out_remove_ctlreg_attr:
1064         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1065 out:
1066         return error;
1067 }
1068
1069 void
1070 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1071 {
1072         struct Scsi_Host *host = phba->host;
1073
1074         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1075         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1076 }
1077
1078
1079 /*
1080  * Dynamic FC Host Attributes Support
1081  */
1082
1083 static void
1084 lpfc_get_host_port_id(struct Scsi_Host *shost)
1085 {
1086         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1087         /* note: fc_myDID already in cpu endianness */
1088         fc_host_port_id(shost) = phba->fc_myDID;
1089 }
1090
1091 static void
1092 lpfc_get_host_port_type(struct Scsi_Host *shost)
1093 {
1094         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1095
1096         spin_lock_irq(shost->host_lock);
1097
1098         if (phba->hba_state == LPFC_HBA_READY) {
1099                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1100                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1101                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1102                         else
1103                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1104                 } else {
1105                         if (phba->fc_flag & FC_FABRIC)
1106                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1107                         else
1108                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1109                 }
1110         } else
1111                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1112
1113         spin_unlock_irq(shost->host_lock);
1114 }
1115
1116 static void
1117 lpfc_get_host_port_state(struct Scsi_Host *shost)
1118 {
1119         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1120
1121         spin_lock_irq(shost->host_lock);
1122
1123         if (phba->fc_flag & FC_OFFLINE_MODE)
1124                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1125         else {
1126                 switch (phba->hba_state) {
1127                 case LPFC_STATE_UNKNOWN:
1128                 case LPFC_WARM_START:
1129                 case LPFC_INIT_START:
1130                 case LPFC_INIT_MBX_CMDS:
1131                 case LPFC_LINK_DOWN:
1132                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1133                         break;
1134                 case LPFC_LINK_UP:
1135                 case LPFC_LOCAL_CFG_LINK:
1136                 case LPFC_FLOGI:
1137                 case LPFC_FABRIC_CFG_LINK:
1138                 case LPFC_NS_REG:
1139                 case LPFC_NS_QRY:
1140                 case LPFC_BUILD_DISC_LIST:
1141                 case LPFC_DISC_AUTH:
1142                 case LPFC_CLEAR_LA:
1143                 case LPFC_HBA_READY:
1144                         /* Links up, beyond this port_type reports state */
1145                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1146                         break;
1147                 case LPFC_HBA_ERROR:
1148                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1149                         break;
1150                 default:
1151                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1152                         break;
1153                 }
1154         }
1155
1156         spin_unlock_irq(shost->host_lock);
1157 }
1158
1159 static void
1160 lpfc_get_host_speed(struct Scsi_Host *shost)
1161 {
1162         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1163
1164         spin_lock_irq(shost->host_lock);
1165
1166         if (phba->hba_state == LPFC_HBA_READY) {
1167                 switch(phba->fc_linkspeed) {
1168                         case LA_1GHZ_LINK:
1169                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1170                         break;
1171                         case LA_2GHZ_LINK:
1172                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1173                         break;
1174                         case LA_4GHZ_LINK:
1175                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1176                         break;
1177                         default:
1178                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1179                         break;
1180                 }
1181         }
1182
1183         spin_unlock_irq(shost->host_lock);
1184 }
1185
1186 static void
1187 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1188 {
1189         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1190         u64 node_name;
1191
1192         spin_lock_irq(shost->host_lock);
1193
1194         if ((phba->fc_flag & FC_FABRIC) ||
1195             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1196              (phba->fc_flag & FC_PUBLIC_LOOP)))
1197                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1198         else
1199                 /* fabric is local port if there is no F/FL_Port */
1200                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1201
1202         spin_unlock_irq(shost->host_lock);
1203
1204         fc_host_fabric_name(shost) = node_name;
1205 }
1206
1207
1208 static struct fc_host_statistics *
1209 lpfc_get_stats(struct Scsi_Host *shost)
1210 {
1211         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1212         struct lpfc_sli *psli = &phba->sli;
1213         struct fc_host_statistics *hs = &phba->link_stats;
1214         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1215         LPFC_MBOXQ_t *pmboxq;
1216         MAILBOX_t *pmb;
1217         unsigned long seconds;
1218         int rc = 0;
1219
1220         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1221         if (!pmboxq)
1222                 return NULL;
1223         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1224
1225         pmb = &pmboxq->mb;
1226         pmb->mbxCommand = MBX_READ_STATUS;
1227         pmb->mbxOwner = OWN_HOST;
1228         pmboxq->context1 = NULL;
1229
1230         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1231                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1232                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1233         else
1234                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1235
1236         if (rc != MBX_SUCCESS) {
1237                 if (rc == MBX_TIMEOUT)
1238                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1239                 else
1240                         mempool_free(pmboxq, phba->mbox_mem_pool);
1241                 return NULL;
1242         }
1243
1244         memset(hs, 0, sizeof (struct fc_host_statistics));
1245
1246         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1247         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1248         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1249         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1250
1251         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1252         pmb->mbxCommand = MBX_READ_LNK_STAT;
1253         pmb->mbxOwner = OWN_HOST;
1254         pmboxq->context1 = NULL;
1255
1256         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1257             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1258                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1259         else
1260                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1261
1262         if (rc != MBX_SUCCESS) {
1263                 if (rc == MBX_TIMEOUT)
1264                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1265                 else
1266                         mempool_free( pmboxq, phba->mbox_mem_pool);
1267                 return NULL;
1268         }
1269
1270         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1271         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1272         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1273         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1274         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1275         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1276         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1277
1278         hs->link_failure_count -= lso->link_failure_count;
1279         hs->loss_of_sync_count -= lso->loss_of_sync_count;
1280         hs->loss_of_signal_count -= lso->loss_of_signal_count;
1281         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1282         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1283         hs->invalid_crc_count -= lso->invalid_crc_count;
1284         hs->error_frames -= lso->error_frames;
1285
1286         if (phba->fc_topology == TOPOLOGY_LOOP) {
1287                 hs->lip_count = (phba->fc_eventTag >> 1);
1288                 hs->lip_count -= lso->link_events;
1289                 hs->nos_count = -1;
1290         } else {
1291                 hs->lip_count = -1;
1292                 hs->nos_count = (phba->fc_eventTag >> 1);
1293                 hs->nos_count -= lso->link_events;
1294         }
1295
1296         hs->dumped_frames = -1;
1297
1298         seconds = get_seconds();
1299         if (seconds < psli->stats_start)
1300                 hs->seconds_since_last_reset = seconds +
1301                                 ((unsigned long)-1 - psli->stats_start);
1302         else
1303                 hs->seconds_since_last_reset = seconds - psli->stats_start;
1304
1305         return hs;
1306 }
1307
1308 static void
1309 lpfc_reset_stats(struct Scsi_Host *shost)
1310 {
1311         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1312         struct lpfc_sli *psli = &phba->sli;
1313         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1314         LPFC_MBOXQ_t *pmboxq;
1315         MAILBOX_t *pmb;
1316         int rc = 0;
1317
1318         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1319         if (!pmboxq)
1320                 return;
1321         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1322
1323         pmb = &pmboxq->mb;
1324         pmb->mbxCommand = MBX_READ_STATUS;
1325         pmb->mbxOwner = OWN_HOST;
1326         pmb->un.varWords[0] = 0x1; /* reset request */
1327         pmboxq->context1 = NULL;
1328
1329         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1330                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1331                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1332         else
1333                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1334
1335         if (rc != MBX_SUCCESS) {
1336                 if (rc == MBX_TIMEOUT)
1337                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1338                 else
1339                         mempool_free(pmboxq, phba->mbox_mem_pool);
1340                 return;
1341         }
1342
1343         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1344         pmb->mbxCommand = MBX_READ_LNK_STAT;
1345         pmb->mbxOwner = OWN_HOST;
1346         pmboxq->context1 = NULL;
1347
1348         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1349             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1350                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1351         else
1352                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1353
1354         if (rc != MBX_SUCCESS) {
1355                 if (rc == MBX_TIMEOUT)
1356                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1357                 else
1358                         mempool_free( pmboxq, phba->mbox_mem_pool);
1359                 return;
1360         }
1361
1362         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1363         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1364         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1365         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1366         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1367         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1368         lso->error_frames = pmb->un.varRdLnk.crcCnt;
1369         lso->link_events = (phba->fc_eventTag >> 1);
1370
1371         psli->stats_start = get_seconds();
1372
1373         return;
1374 }
1375
1376 /*
1377  * The LPFC driver treats linkdown handling as target loss events so there
1378  * are no sysfs handlers for link_down_tmo.
1379  */
1380 static void
1381 lpfc_get_starget_port_id(struct scsi_target *starget)
1382 {
1383         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1384         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1385         uint32_t did = -1;
1386         struct lpfc_nodelist *ndlp = NULL;
1387
1388         spin_lock_irq(shost->host_lock);
1389         /* Search the mapped list for this target ID */
1390         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1391                 if (starget->id == ndlp->nlp_sid) {
1392                         did = ndlp->nlp_DID;
1393                         break;
1394                 }
1395         }
1396         spin_unlock_irq(shost->host_lock);
1397
1398         fc_starget_port_id(starget) = did;
1399 }
1400
1401 static void
1402 lpfc_get_starget_node_name(struct scsi_target *starget)
1403 {
1404         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1405         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1406         u64 node_name = 0;
1407         struct lpfc_nodelist *ndlp = NULL;
1408
1409         spin_lock_irq(shost->host_lock);
1410         /* Search the mapped list for this target ID */
1411         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1412                 if (starget->id == ndlp->nlp_sid) {
1413                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1414                         break;
1415                 }
1416         }
1417         spin_unlock_irq(shost->host_lock);
1418
1419         fc_starget_node_name(starget) = node_name;
1420 }
1421
1422 static void
1423 lpfc_get_starget_port_name(struct scsi_target *starget)
1424 {
1425         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1426         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1427         u64 port_name = 0;
1428         struct lpfc_nodelist *ndlp = NULL;
1429
1430         spin_lock_irq(shost->host_lock);
1431         /* Search the mapped list for this target ID */
1432         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1433                 if (starget->id == ndlp->nlp_sid) {
1434                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1435                         break;
1436                 }
1437         }
1438         spin_unlock_irq(shost->host_lock);
1439
1440         fc_starget_port_name(starget) = port_name;
1441 }
1442
1443 static void
1444 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1445 {
1446         /*
1447          * Return the driver's global value for device loss timeout plus
1448          * five seconds to allow the driver's nodev timer to run.
1449          */
1450         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1451 }
1452
1453 static void
1454 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1455 {
1456         /*
1457          * The driver doesn't have a per-target timeout setting.  Set
1458          * this value globally. lpfc_nodev_tmo should be greater then 0.
1459          */
1460         if (timeout)
1461                 lpfc_nodev_tmo = timeout;
1462         else
1463                 lpfc_nodev_tmo = 1;
1464         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1465 }
1466
1467
1468 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1469 static ssize_t                                                          \
1470 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1471 {                                                                       \
1472         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1473         struct lpfc_rport_data *rdata = rport->hostdata;                \
1474         return snprintf(buf, sz, format_string,                         \
1475                 (rdata->target) ? cast rdata->target->field : 0);       \
1476 }
1477
1478 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1479         lpfc_rport_show_function(field, format_string, sz, )            \
1480 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1481
1482
1483 struct fc_function_template lpfc_transport_functions = {
1484         /* fixed attributes the driver supports */
1485         .show_host_node_name = 1,
1486         .show_host_port_name = 1,
1487         .show_host_supported_classes = 1,
1488         .show_host_supported_fc4s = 1,
1489         .show_host_symbolic_name = 1,
1490         .show_host_supported_speeds = 1,
1491         .show_host_maxframe_size = 1,
1492
1493         /* dynamic attributes the driver supports */
1494         .get_host_port_id = lpfc_get_host_port_id,
1495         .show_host_port_id = 1,
1496
1497         .get_host_port_type = lpfc_get_host_port_type,
1498         .show_host_port_type = 1,
1499
1500         .get_host_port_state = lpfc_get_host_port_state,
1501         .show_host_port_state = 1,
1502
1503         /* active_fc4s is shown but doesn't change (thus no get function) */
1504         .show_host_active_fc4s = 1,
1505
1506         .get_host_speed = lpfc_get_host_speed,
1507         .show_host_speed = 1,
1508
1509         .get_host_fabric_name = lpfc_get_host_fabric_name,
1510         .show_host_fabric_name = 1,
1511
1512         /*
1513          * The LPFC driver treats linkdown handling as target loss events
1514          * so there are no sysfs handlers for link_down_tmo.
1515          */
1516
1517         .get_fc_host_stats = lpfc_get_stats,
1518         .reset_fc_host_stats = lpfc_reset_stats,
1519
1520         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1521         .show_rport_maxframe_size = 1,
1522         .show_rport_supported_classes = 1,
1523
1524         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1525         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1526         .show_rport_dev_loss_tmo = 1,
1527
1528         .get_starget_port_id  = lpfc_get_starget_port_id,
1529         .show_starget_port_id = 1,
1530
1531         .get_starget_node_name = lpfc_get_starget_node_name,
1532         .show_starget_node_name = 1,
1533
1534         .get_starget_port_name = lpfc_get_starget_port_name,
1535         .show_starget_port_name = 1,
1536
1537         .issue_fc_host_lip = lpfc_issue_lip,
1538 };
1539
1540 void
1541 lpfc_get_cfgparam(struct lpfc_hba *phba)
1542 {
1543         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1544         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1545         lpfc_cr_count_init(phba, lpfc_cr_count);
1546         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1547         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1548         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1549         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1550         lpfc_ack0_init(phba, lpfc_ack0);
1551         lpfc_topology_init(phba, lpfc_topology);
1552         lpfc_scan_down_init(phba, lpfc_scan_down);
1553         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1554         lpfc_link_speed_init(phba, lpfc_link_speed);
1555         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1556         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1557         lpfc_max_luns_init(phba, lpfc_max_luns);
1558         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1559
1560         phba->cfg_poll = lpfc_poll;
1561
1562         /*
1563          * The total number of segments is the configuration value plus 2
1564          * since the IOCB need a command and response bde.
1565          */
1566         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1567
1568         /*
1569          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1570          * used to create the sg_dma_buf_pool must be dynamically calculated
1571          */
1572         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1573                         sizeof(struct fcp_rsp) +
1574                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1575
1576         switch (phba->pcidev->device) {
1577         case PCI_DEVICE_ID_LP101:
1578         case PCI_DEVICE_ID_BSMB:
1579         case PCI_DEVICE_ID_ZSMB:
1580                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1581                 break;
1582         case PCI_DEVICE_ID_RFLY:
1583         case PCI_DEVICE_ID_PFLY:
1584         case PCI_DEVICE_ID_BMID:
1585         case PCI_DEVICE_ID_ZMID:
1586         case PCI_DEVICE_ID_TFLY:
1587                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1588                 break;
1589         default:
1590                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1591         }
1592
1593         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1594                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1595
1596         return;
1597 }