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