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   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 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/delay.h>
  24 #include <linux/pci.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_device.h>
  29 #include <scsi/scsi_host.h>
  30 #include <scsi/scsi_tcq.h>
  31 #include <scsi/scsi_transport_fc.h>
  32
  33 #include "lpfc_hw.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_disc.h"
  36 #include "lpfc_scsi.h"
  37 #include "lpfc.h"
  38 #include "lpfc_logmsg.h"
  39 #include "lpfc_version.h"
  40 #include "lpfc_compat.h"
  41 #include "lpfc_crtn.h"
  42 #include "lpfc_vport.h"
  43
  44 #define LPFC_DEF_DEVLOSS_TMO 30
  45 #define LPFC_MIN_DEVLOSS_TMO 1
  46 #define LPFC_MAX_DEVLOSS_TMO 255
  47
  48 static void
  49 lpfc_jedec_to_ascii(int incr, char hdw[])
  50 {
  51         int i, j;
  52         for (i = 0; i < 8; i++) {
  53                 j = (incr & 0xf);
  54                 if (j <= 9)
  55                         hdw[7 - i] = 0x30 +  j;
  56                  else
  57                         hdw[7 - i] = 0x61 + j - 10;
  58                 incr = (incr >> 4);
  59         }
  60         hdw[8] = 0;
  61         return;
  62 }
  63
  64 static ssize_t
  65 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
  66 {
  67         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  68 }
  69
  70 static ssize_t
  71 lpfc_info_show(struct class_device *cdev, char *buf)
  72 {
  73         struct Scsi_Host *host = class_to_shost(cdev);
  74
  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  *shost = class_to_shost(cdev);
  82         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  83         struct lpfc_hba   *phba = vport->phba;
  84
  85         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  86 }
  87
  88 static ssize_t
  89 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  90 {
  91         struct Scsi_Host  *shost = class_to_shost(cdev);
  92         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  93         struct lpfc_hba   *phba = vport->phba;
  94
  95         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
  96 }
  97
  98 static ssize_t
  99 lpfc_modelname_show(struct class_device *cdev, char *buf)
 100 {
 101         struct Scsi_Host  *shost = class_to_shost(cdev);
 102         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 103         struct lpfc_hba   *phba = vport->phba;
 104
 105         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 106 }
 107
 108 static ssize_t
 109 lpfc_programtype_show(struct class_device *cdev, char *buf)
 110 {
 111         struct Scsi_Host  *shost = class_to_shost(cdev);
 112         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 113         struct lpfc_hba   *phba = vport->phba;
 114
 115         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 116 }
 117
 118 static ssize_t
 119 lpfc_vportnum_show(struct class_device *cdev, char *buf)
 120 {
 121         struct Scsi_Host  *shost = class_to_shost(cdev);
 122         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 123         struct lpfc_hba   *phba = vport->phba;
 124
 125         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 126 }
 127
 128 static ssize_t
 129 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 130 {
 131         struct Scsi_Host  *shost = class_to_shost(cdev);
 132         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 133         struct lpfc_hba   *phba = vport->phba;
 134         char fwrev[32];
 135
 136         lpfc_decode_firmware_rev(phba, fwrev, 1);
 137         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 138 }
 139
 140 static ssize_t
 141 lpfc_hdw_show(struct class_device *cdev, char *buf)
 142 {
 143         char hdw[9];
 144         struct Scsi_Host  *shost = class_to_shost(cdev);
 145         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 146         struct lpfc_hba   *phba = vport->phba;
 147         lpfc_vpd_t *vp = &phba->vpd;
 148
 149         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 150         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 151 }
 152 static ssize_t
 153 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 154 {
 155         struct Scsi_Host  *shost = class_to_shost(cdev);
 156         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 157         struct lpfc_hba   *phba = vport->phba;
 158
 159         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 160 }
 161 static ssize_t
 162 lpfc_state_show(struct class_device *cdev, char *buf)
 163 {
 164         struct Scsi_Host  *shost = class_to_shost(cdev);
 165         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 166         struct lpfc_hba   *phba = vport->phba;
 167         int  len = 0;
 168
 169         switch (phba->link_state) {
 170         case LPFC_LINK_UNKNOWN:
 171         case LPFC_WARM_START:
 172         case LPFC_INIT_START:
 173         case LPFC_INIT_MBX_CMDS:
 174         case LPFC_LINK_DOWN:
 175         case LPFC_HBA_ERROR:
 176                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 177                 break;
 178         case LPFC_LINK_UP:
 179         case LPFC_CLEAR_LA:
 180         case LPFC_HBA_READY:
 181                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
 182
 183                 switch (vport->port_state) {
 184                         len += snprintf(buf + len, PAGE_SIZE-len,
 185                                         "initializing\n");
 186                         break;
 187                 case LPFC_LOCAL_CFG_LINK:
 188                         len += snprintf(buf + len, PAGE_SIZE-len,
 189                                         "Configuring Link\n");
 190                         break;
 191                 case LPFC_FDISC:
 192                 case LPFC_FLOGI:
 193                 case LPFC_FABRIC_CFG_LINK:
 194                 case LPFC_NS_REG:
 195                 case LPFC_NS_QRY:
 196                 case LPFC_BUILD_DISC_LIST:
 197                 case LPFC_DISC_AUTH:
 198                         len += snprintf(buf + len, PAGE_SIZE - len,
 199                                         "Discovery\n");
 200                         break;
 201                 case LPFC_VPORT_READY:
 202                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 203                         break;
 204
 205                 case LPFC_VPORT_FAILED:
 206                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 207                         break;
 208
 209                 case LPFC_VPORT_UNKNOWN:
 210                         len += snprintf(buf + len, PAGE_SIZE - len,
 211                                         "Unknown\n");
 212                         break;
 213                 }
 214
 215                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 216                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 217                                 len += snprintf(buf + len, PAGE_SIZE-len,
 218                                                 "   Public Loop\n");
 219                         else
 220                                 len += snprintf(buf + len, PAGE_SIZE-len,
 221                                                 "   Private Loop\n");
 222                 } else {
 223                         if (vport->fc_flag & FC_FABRIC)
 224                                 len += snprintf(buf + len, PAGE_SIZE-len,
 225                                                 "   Fabric\n");
 226                         else
 227                                 len += snprintf(buf + len, PAGE_SIZE-len,
 228                                                 "   Point-2-Point\n");
 229                 }
 230         }
 231
 232         return len;
 233 }
 234
 235 static ssize_t
 236 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 237 {
 238         struct Scsi_Host  *shost = class_to_shost(cdev);
 239         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 240
 241         return snprintf(buf, PAGE_SIZE, "%d\n",
 242                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 243 }
 244
 245
 246 static int
 247 lpfc_issue_lip(struct Scsi_Host *shost)
 248 {
 249         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 250         struct lpfc_hba   *phba = vport->phba;
 251         LPFC_MBOXQ_t *pmboxq;
 252         int mbxstatus = MBXERR_ERROR;
 253
 254         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 255             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
 256             (vport->port_state != LPFC_VPORT_READY))
 257                 return -EPERM;
 258
 259         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 260
 261         if (!pmboxq)
 262                 return -ENOMEM;
 263
 264         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 265         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 266         pmboxq->mb.mbxOwner = OWN_HOST;
 267
 268         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 269
 270         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 271                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 272                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 273                                phba->cfg_link_speed);
 274                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 275                                                      phba->fc_ratov * 2);
 276         }
 277
 278         lpfc_set_loopback_flag(phba);
 279         if (mbxstatus != MBX_TIMEOUT)
 280                 mempool_free(pmboxq, phba->mbox_mem_pool);
 281
 282         if (mbxstatus == MBXERR_ERROR)
 283                 return -EIO;
 284
 285         return 0;
 286 }
 287
 288 static int
 289 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 290 {
 291         struct completion online_compl;
 292         struct lpfc_sli_ring *pring;
 293         struct lpfc_sli *psli;
 294         int status = 0;
 295         int cnt = 0;
 296         int i;
 297
 298         init_completion(&online_compl);
 299         lpfc_workq_post_event(phba, &status, &online_compl,
 300                               LPFC_EVT_OFFLINE_PREP);
 301         wait_for_completion(&online_compl);
 302
 303         if (status != 0)
 304                 return -EIO;
 305
 306         psli = &phba->sli;
 307
 308         for (i = 0; i < psli->num_rings; i++) {
 309                 pring = &psli->ring[i];
 310                 /* The linkdown event takes 30 seconds to timeout. */
 311                 while (pring->txcmplq_cnt) {
 312                         msleep(10);
 313                         if (cnt++ > 3000) {
 314                                 lpfc_printf_log(phba,
 315                                         KERN_WARNING, LOG_INIT,
 316                                         "0466 Outstanding IO when "
 317                                         "bringing Adapter offline\n");
 318                                 break;
 319                         }
 320                 }
 321         }
 322
 323         init_completion(&online_compl);
 324         lpfc_workq_post_event(phba, &status, &online_compl, type);
 325         wait_for_completion(&online_compl);
 326
 327         if (status != 0)
 328                 return -EIO;
 329
 330         return 0;
 331 }
 332
 333 static int
 334 lpfc_selective_reset(struct lpfc_hba *phba)
 335 {
 336         struct completion online_compl;
 337         int status = 0;
 338
 339         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 340
 341         if (status != 0)
 342                 return status;
 343
 344         init_completion(&online_compl);
 345         lpfc_workq_post_event(phba, &status, &online_compl,
 346                               LPFC_EVT_ONLINE);
 347         wait_for_completion(&online_compl);
 348
 349         if (status != 0)
 350                 return -EIO;
 351
 352         return 0;
 353 }
 354
 355 static ssize_t
 356 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 357 {
 358         struct Scsi_Host  *shost = class_to_shost(cdev);
 359         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 360         struct lpfc_hba   *phba = vport->phba;
 361
 362         int status = -EINVAL;
 363
 364         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 365                 status = lpfc_selective_reset(phba);
 366
 367         if (status == 0)
 368                 return strlen(buf);
 369         else
 370                 return status;
 371 }
 372
 373 static ssize_t
 374 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 375 {
 376         struct Scsi_Host  *shost = class_to_shost(cdev);
 377         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 378         struct lpfc_hba   *phba = vport->phba;
 379
 380         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 381 }
 382
 383 static ssize_t
 384 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 385 {
 386         struct Scsi_Host  *shost = class_to_shost(cdev);
 387         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 388         struct lpfc_hba   *phba = vport->phba;
 389         char  * state;
 390
 391         if (phba->link_state == LPFC_HBA_ERROR)
 392                 state = "error";
 393         else if (phba->link_state == LPFC_WARM_START)
 394                 state = "warm start";
 395         else if (phba->link_state == LPFC_INIT_START)
 396                 state = "offline";
 397         else
 398                 state = "online";
 399
 400         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 401 }
 402
 403 static ssize_t
 404 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 405 {
 406         struct Scsi_Host  *shost = class_to_shost(cdev);
 407         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 408         struct lpfc_hba   *phba = vport->phba;
 409         struct completion online_compl;
 410         int status=0;
 411
 412         init_completion(&online_compl);
 413
 414         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 415                 lpfc_workq_post_event(phba, &status, &online_compl,
 416                                       LPFC_EVT_ONLINE);
 417                 wait_for_completion(&online_compl);
 418         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 419                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 420         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 421                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 422         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 423                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 424         else
 425                 return -EINVAL;
 426
 427         if (!status)
 428                 return strlen(buf);
 429         else
 430                 return -EIO;
 431 }
 432
 433 static int
 434 lpfc_get_hba_info(struct lpfc_hba *phba,
 435                   uint32_t *mxri, uint32_t *axri,
 436                   uint32_t *mrpi, uint32_t *arpi,
 437                   uint32_t *mvpi, uint32_t *avpi)
 438 {
 439         struct lpfc_sli   *psli = &phba->sli;
 440         LPFC_MBOXQ_t *pmboxq;
 441         MAILBOX_t *pmb;
 442         int rc = 0;
 443
 444         /*
 445          * prevent udev from issuing mailbox commands until the port is
 446          * configured.
 447          */
 448         if (phba->link_state < LPFC_LINK_DOWN ||
 449             !phba->mbox_mem_pool ||
 450             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 451                 return 0;
 452
 453         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 454                 return 0;
 455
 456         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 457         if (!pmboxq)
 458                 return 0;
 459         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 460
 461         pmb = &pmboxq->mb;
 462         pmb->mbxCommand = MBX_READ_CONFIG;
 463         pmb->mbxOwner = OWN_HOST;
 464         pmboxq->context1 = NULL;
 465
 466         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 467                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 468                 rc = MBX_NOT_FINISHED;
 469         else
 470                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 471
 472         if (rc != MBX_SUCCESS) {
 473                 if (rc != MBX_TIMEOUT)
 474                         mempool_free(pmboxq, phba->mbox_mem_pool);
 475                 return 0;
 476         }
 477
 478         if (mrpi)
 479                 *mrpi = pmb->un.varRdConfig.max_rpi;
 480         if (arpi)
 481                 *arpi = pmb->un.varRdConfig.avail_rpi;
 482         if (mxri)
 483                 *mxri = pmb->un.varRdConfig.max_xri;
 484         if (axri)
 485                 *axri = pmb->un.varRdConfig.avail_xri;
 486         if (mvpi)
 487                 *mvpi = pmb->un.varRdConfig.max_vpi;
 488         if (avpi)
 489                 *avpi = pmb->un.varRdConfig.avail_vpi;
 490
 491         mempool_free(pmboxq, phba->mbox_mem_pool);
 492         return 1;
 493 }
 494
 495 static ssize_t
 496 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
 497 {
 498         struct Scsi_Host  *shost = class_to_shost(cdev);
 499         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 500         struct lpfc_hba   *phba = vport->phba;
 501         uint32_t cnt;
 502
 503         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 504                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 505         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 506 }
 507
 508 static ssize_t
 509 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
 510 {
 511         struct Scsi_Host  *shost = class_to_shost(cdev);
 512         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 513         struct lpfc_hba   *phba = vport->phba;
 514         uint32_t cnt, acnt;
 515
 516         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 517                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 518         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 519 }
 520
 521 static ssize_t
 522 lpfc_max_xri_show(struct class_device *cdev, char *buf)
 523 {
 524         struct Scsi_Host  *shost = class_to_shost(cdev);
 525         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 526         struct lpfc_hba   *phba = vport->phba;
 527         uint32_t cnt;
 528
 529         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
 530                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 531         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 532 }
 533
 534 static ssize_t
 535 lpfc_used_xri_show(struct class_device *cdev, char *buf)
 536 {
 537         struct Scsi_Host  *shost = class_to_shost(cdev);
 538         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 539         struct lpfc_hba   *phba = vport->phba;
 540         uint32_t cnt, acnt;
 541
 542         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 543                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 544         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 545 }
 546
 547 static ssize_t
 548 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
 549 {
 550         struct Scsi_Host  *shost = class_to_shost(cdev);
 551         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 552         struct lpfc_hba   *phba = vport->phba;
 553         uint32_t cnt;
 554
 555         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 556                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 557         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 558 }
 559
 560 static ssize_t
 561 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
 562 {
 563         struct Scsi_Host  *shost = class_to_shost(cdev);
 564         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 565         struct lpfc_hba   *phba = vport->phba;
 566         uint32_t cnt, acnt;
 567
 568         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 569                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 570         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 571 }
 572
 573 static ssize_t
 574 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
 575 {
 576         struct Scsi_Host  *shost = class_to_shost(cdev);
 577         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 578         struct lpfc_hba   *phba = vport->phba;
 579
 580         if (!(phba->max_vpi))
 581                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 582         if (vport->port_type == LPFC_PHYSICAL_PORT)
 583                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 584         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 585 }
 586
 587 static ssize_t
 588 lpfc_poll_show(struct class_device *cdev, char *buf)
 589 {
 590         struct Scsi_Host  *shost = class_to_shost(cdev);
 591         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 592         struct lpfc_hba   *phba = vport->phba;
 593
 594         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 595 }
 596
 597 static ssize_t
 598 lpfc_poll_store(struct class_device *cdev, const char *buf,
 599                 size_t count)
 600 {
 601         struct Scsi_Host  *shost = class_to_shost(cdev);
 602         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 603         struct lpfc_hba   *phba = vport->phba;
 604         uint32_t creg_val;
 605         uint32_t old_val;
 606         int val=0;
 607
 608         if (!isdigit(buf[0]))
 609                 return -EINVAL;
 610
 611         if (sscanf(buf, "%i", &val) != 1)
 612                 return -EINVAL;
 613
 614         if ((val & 0x3) != val)
 615                 return -EINVAL;
 616
 617         spin_lock_irq(&phba->hbalock);
 618
 619         old_val = phba->cfg_poll;
 620
 621         if (val & ENABLE_FCP_RING_POLLING) {
 622                 if ((val & DISABLE_FCP_RING_INT) &&
 623                     !(old_val & DISABLE_FCP_RING_INT)) {
 624                         creg_val = readl(phba->HCregaddr);
 625                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 626                         writel(creg_val, phba->HCregaddr);
 627                         readl(phba->HCregaddr); /* flush */
 628
 629                         lpfc_poll_start_timer(phba);
 630                 }
 631         } else if (val != 0x0) {
 632                 spin_unlock_irq(&phba->hbalock);
 633                 return -EINVAL;
 634         }
 635
 636         if (!(val & DISABLE_FCP_RING_INT) &&
 637             (old_val & DISABLE_FCP_RING_INT))
 638         {
 639                 spin_unlock_irq(&phba->hbalock);
 640                 del_timer(&phba->fcp_poll_timer);
 641                 spin_lock_irq(&phba->hbalock);
 642                 creg_val = readl(phba->HCregaddr);
 643                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 644                 writel(creg_val, phba->HCregaddr);
 645                 readl(phba->HCregaddr); /* flush */
 646         }
 647
 648         phba->cfg_poll = val;
 649
 650         spin_unlock_irq(&phba->hbalock);
 651
 652         return strlen(buf);
 653 }
 654
 655 #define lpfc_param_show(attr)   \
 656 static ssize_t \
 657 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 658 { \
 659         struct Scsi_Host  *shost = class_to_shost(cdev);\
 660         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 661         struct lpfc_hba   *phba = vport->phba;\
 662         int val = 0;\
 663         val = phba->cfg_##attr;\
 664         return snprintf(buf, PAGE_SIZE, "%d\n",\
 665                         phba->cfg_##attr);\
 666 }
 667
 668 #define lpfc_param_hex_show(attr)       \
 669 static ssize_t \
 670 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 671 { \
 672         struct Scsi_Host  *shost = class_to_shost(cdev);\
 673         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 674         struct lpfc_hba   *phba = vport->phba;\
 675         int val = 0;\
 676         val = phba->cfg_##attr;\
 677         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 678                         phba->cfg_##attr);\
 679 }
 680
 681 #define lpfc_param_init(attr, default, minval, maxval)  \
 682 static int \
 683 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 684 { \
 685         if (val >= minval && val <= maxval) {\
 686                 phba->cfg_##attr = val;\
 687                 return 0;\
 688         }\
 689         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 690                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 691                         "allowed range is ["#minval", "#maxval"]\n", val); \
 692         phba->cfg_##attr = default;\
 693         return -EINVAL;\
 694 }
 695
 696 #define lpfc_param_set(attr, default, minval, maxval)   \
 697 static int \
 698 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 699 { \
 700         if (val >= minval && val <= maxval) {\
 701                 phba->cfg_##attr = val;\
 702                 return 0;\
 703         }\
 704         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 705                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 706                         "allowed range is ["#minval", "#maxval"]\n", val); \
 707         return -EINVAL;\
 708 }
 709
 710 #define lpfc_param_store(attr)  \
 711 static ssize_t \
 712 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 713 { \
 714         struct Scsi_Host  *shost = class_to_shost(cdev);\
 715         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 716         struct lpfc_hba   *phba = vport->phba;\
 717         int val=0;\
 718         if (!isdigit(buf[0]))\
 719                 return -EINVAL;\
 720         if (sscanf(buf, "%i", &val) != 1)\
 721                 return -EINVAL;\
 722         if (lpfc_##attr##_set(phba, val) == 0) \
 723                 return strlen(buf);\
 724         else \
 725                 return -EINVAL;\
 726 }
 727
 728 #define lpfc_vport_param_show(attr)     \
 729 static ssize_t \
 730 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 731 { \
 732         struct Scsi_Host  *shost = class_to_shost(cdev);\
 733         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 734         int val = 0;\
 735         val = vport->cfg_##attr;\
 736         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 737 }
 738
 739 #define lpfc_vport_param_hex_show(attr) \
 740 static ssize_t \
 741 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 742 { \
 743         struct Scsi_Host  *shost = class_to_shost(cdev);\
 744         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 745         int val = 0;\
 746         val = vport->cfg_##attr;\
 747         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 748 }
 749
 750 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
 751 static int \
 752 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
 753 { \
 754         if (val >= minval && val <= maxval) {\
 755                 vport->cfg_##attr = val;\
 756                 return 0;\
 757         }\
 758         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 759                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 760                          "allowed range is ["#minval", "#maxval"]\n", val); \
 761         vport->cfg_##attr = default;\
 762         return -EINVAL;\
 763 }
 764
 765 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 766 static int \
 767 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 768 { \
 769         if (val >= minval && val <= maxval) {\
 770                 vport->cfg_##attr = val;\
 771                 return 0;\
 772         }\
 773         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 774                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 775                          "allowed range is ["#minval", "#maxval"]\n", val); \
 776         return -EINVAL;\
 777 }
 778
 779 #define lpfc_vport_param_store(attr)    \
 780 static ssize_t \
 781 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 782 { \
 783         struct Scsi_Host  *shost = class_to_shost(cdev);\
 784         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 785         int val=0;\
 786         if (!isdigit(buf[0]))\
 787                 return -EINVAL;\
 788         if (sscanf(buf, "%i", &val) != 1)\
 789                 return -EINVAL;\
 790         if (lpfc_##attr##_set(vport, val) == 0) \
 791                 return strlen(buf);\
 792         else \
 793                 return -EINVAL;\
 794 }
 795
 796
 797 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 798 static int lpfc_##name = defval;\
 799 module_param(lpfc_##name, int, 0);\
 800 MODULE_PARM_DESC(lpfc_##name, desc);\
 801 lpfc_param_init(name, defval, minval, maxval)
 802
 803 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 804 static int lpfc_##name = defval;\
 805 module_param(lpfc_##name, int, 0);\
 806 MODULE_PARM_DESC(lpfc_##name, desc);\
 807 lpfc_param_show(name)\
 808 lpfc_param_init(name, defval, minval, maxval)\
 809 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 810
 811 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 812 static int lpfc_##name = defval;\
 813 module_param(lpfc_##name, int, 0);\
 814 MODULE_PARM_DESC(lpfc_##name, desc);\
 815 lpfc_param_show(name)\
 816 lpfc_param_init(name, defval, minval, maxval)\
 817 lpfc_param_set(name, defval, minval, maxval)\
 818 lpfc_param_store(name)\
 819 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 820                          lpfc_##name##_show, lpfc_##name##_store)
 821
 822 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 823 static int lpfc_##name = defval;\
 824 module_param(lpfc_##name, int, 0);\
 825 MODULE_PARM_DESC(lpfc_##name, desc);\
 826 lpfc_param_hex_show(name)\
 827 lpfc_param_init(name, defval, minval, maxval)\
 828 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 829
 830 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 831 static int lpfc_##name = defval;\
 832 module_param(lpfc_##name, int, 0);\
 833 MODULE_PARM_DESC(lpfc_##name, desc);\
 834 lpfc_param_hex_show(name)\
 835 lpfc_param_init(name, defval, minval, maxval)\
 836 lpfc_param_set(name, defval, minval, maxval)\
 837 lpfc_param_store(name)\
 838 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 839                          lpfc_##name##_show, lpfc_##name##_store)
 840
 841 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 842 static int lpfc_##name = defval;\
 843 module_param(lpfc_##name, int, 0);\
 844 MODULE_PARM_DESC(lpfc_##name, desc);\
 845 lpfc_vport_param_init(name, defval, minval, maxval)
 846
 847 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 848 static int lpfc_##name = defval;\
 849 module_param(lpfc_##name, int, 0);\
 850 MODULE_PARM_DESC(lpfc_##name, desc);\
 851 lpfc_vport_param_show(name)\
 852 lpfc_vport_param_init(name, defval, minval, maxval)\
 853 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 854
 855 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 856 static int lpfc_##name = defval;\
 857 module_param(lpfc_##name, int, 0);\
 858 MODULE_PARM_DESC(lpfc_##name, desc);\
 859 lpfc_vport_param_show(name)\
 860 lpfc_vport_param_init(name, defval, minval, maxval)\
 861 lpfc_vport_param_set(name, defval, minval, maxval)\
 862 lpfc_vport_param_store(name)\
 863 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 864                          lpfc_##name##_show, lpfc_##name##_store)
 865
 866 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 867 static int lpfc_##name = defval;\
 868 module_param(lpfc_##name, int, 0);\
 869 MODULE_PARM_DESC(lpfc_##name, desc);\
 870 lpfc_vport_param_hex_show(name)\
 871 lpfc_vport_param_init(name, defval, minval, maxval)\
 872 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 873
 874 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 875 static int lpfc_##name = defval;\
 876 module_param(lpfc_##name, int, 0);\
 877 MODULE_PARM_DESC(lpfc_##name, desc);\
 878 lpfc_vport_param_hex_show(name)\
 879 lpfc_vport_param_init(name, defval, minval, maxval)\
 880 lpfc_vport_param_set(name, defval, minval, maxval)\
 881 lpfc_vport_param_store(name)\
 882 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 883                          lpfc_##name##_show, lpfc_##name##_store)
 884
 885 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 886 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 887 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 888 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 889 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 890 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 891 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 892 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 893 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 894 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 895                                         lpfc_option_rom_version_show, NULL);
 896 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 897                                         lpfc_num_discovered_ports_show, NULL);
 898 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 899 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 900                          NULL);
 901 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 902                          lpfc_board_mode_show, lpfc_board_mode_store);
 903 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 904 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 905 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 906 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 907 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 908 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 909 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 910 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 911
 912
 913 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 914
 915 static ssize_t
 916 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 917                                 size_t count)
 918 {
 919         struct Scsi_Host  *shost = class_to_shost(cdev);
 920         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 921         struct lpfc_hba   *phba = vport->phba;
 922         unsigned int cnt = count;
 923
 924         /*
 925          * We're doing a simple sanity check for soft_wwpn setting.
 926          * We require that the user write a specific key to enable
 927          * the soft_wwpn attribute to be settable. Once the attribute
 928          * is written, the enable key resets. If further updates are
 929          * desired, the key must be written again to re-enable the
 930          * attribute.
 931          *
 932          * The "key" is not secret - it is a hardcoded string shown
 933          * here. The intent is to protect against the random user or
 934          * application that is just writing attributes.
 935          */
 936
 937         /* count may include a LF at end of string */
 938         if (buf[cnt-1] == '\n')
 939                 cnt--;
 940
 941         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 942             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 943                 return -EINVAL;
 944
 945         phba->soft_wwn_enable = 1;
 946         return count;
 947 }
 948 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 949                                 lpfc_soft_wwn_enable_store);
 950
 951 static ssize_t
 952 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 953 {
 954         struct Scsi_Host  *shost = class_to_shost(cdev);
 955         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 956         struct lpfc_hba   *phba = vport->phba;
 957
 958         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 959                         (unsigned long long)phba->cfg_soft_wwpn);
 960 }
 961
 962
 963 static ssize_t
 964 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 965 {
 966         struct Scsi_Host  *shost = class_to_shost(cdev);
 967         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 968         struct lpfc_hba   *phba = vport->phba;
 969         struct completion online_compl;
 970         int stat1=0, stat2=0;
 971         unsigned int i, j, cnt=count;
 972         u8 wwpn[8];
 973
 974         /* count may include a LF at end of string */
 975         if (buf[cnt-1] == '\n')
 976                 cnt--;
 977
 978         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 979             ((cnt == 17) && (*buf++ != 'x')) ||
 980             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 981                 return -EINVAL;
 982
 983         phba->soft_wwn_enable = 0;
 984
 985         memset(wwpn, 0, sizeof(wwpn));
 986
 987         /* Validate and store the new name */
 988         for (i=0, j=0; i < 16; i++) {
 989                 if ((*buf >= 'a') && (*buf <= 'f'))
 990                         j = ((j << 4) | ((*buf++ -'a') + 10));
 991                 else if ((*buf >= 'A') && (*buf <= 'F'))
 992                         j = ((j << 4) | ((*buf++ -'A') + 10));
 993                 else if ((*buf >= '0') && (*buf <= '9'))
 994                         j = ((j << 4) | (*buf++ -'0'));
 995                 else
 996                         return -EINVAL;
 997                 if (i % 2) {
 998                         wwpn[i/2] = j & 0xff;
 999                         j = 0;
1000                 }
1001         }
1002         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1003         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1004         if (phba->cfg_soft_wwnn)
1005                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1006
1007         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1008                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1009
1010         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1011         if (stat1)
1012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1013                                 "0463 lpfc_soft_wwpn attribute set failed to "
1014                                 "reinit adapter - %d\n", stat1);
1015         init_completion(&online_compl);
1016         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1017         wait_for_completion(&online_compl);
1018         if (stat2)
1019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1020                                 "0464 lpfc_soft_wwpn attribute set failed to "
1021                                 "reinit adapter - %d\n", stat2);
1022         return (stat1 || stat2) ? -EIO : count;
1023 }
1024 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1025                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1026
1027 static ssize_t
1028 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1029 {
1030         struct Scsi_Host *shost = class_to_shost(cdev);
1031         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1032         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1033                         (unsigned long long)phba->cfg_soft_wwnn);
1034 }
1035
1036
1037 static ssize_t
1038 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1039 {
1040         struct Scsi_Host *shost = class_to_shost(cdev);
1041         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1042         unsigned int i, j, cnt=count;
1043         u8 wwnn[8];
1044
1045         /* count may include a LF at end of string */
1046         if (buf[cnt-1] == '\n')
1047                 cnt--;
1048
1049         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1050             ((cnt == 17) && (*buf++ != 'x')) ||
1051             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1052                 return -EINVAL;
1053
1054         /*
1055          * Allow wwnn to be set many times, as long as the enable is set.
1056          * However, once the wwpn is set, everything locks.
1057          */
1058
1059         memset(wwnn, 0, sizeof(wwnn));
1060
1061         /* Validate and store the new name */
1062         for (i=0, j=0; i < 16; i++) {
1063                 if ((*buf >= 'a') && (*buf <= 'f'))
1064                         j = ((j << 4) | ((*buf++ -'a') + 10));
1065                 else if ((*buf >= 'A') && (*buf <= 'F'))
1066                         j = ((j << 4) | ((*buf++ -'A') + 10));
1067                 else if ((*buf >= '0') && (*buf <= '9'))
1068                         j = ((j << 4) | (*buf++ -'0'));
1069                 else
1070                         return -EINVAL;
1071                 if (i % 2) {
1072                         wwnn[i/2] = j & 0xff;
1073                         j = 0;
1074                 }
1075         }
1076         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1077
1078         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1079                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1080                    "setting of the soft_wwpn\n", phba->brd_no);
1081
1082         return count;
1083 }
1084 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1085                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1086
1087
1088 static int lpfc_poll = 0;
1089 module_param(lpfc_poll, int, 0);
1090 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1091                  " 0 - none,"
1092                  " 1 - poll with interrupts enabled"
1093                  " 3 - poll and disable FCP ring interrupts");
1094
1095 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1096                          lpfc_poll_show, lpfc_poll_store);
1097
1098 int  lpfc_sli_mode = 0;
1099 module_param(lpfc_sli_mode, int, 0);
1100 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1101                  " 0 - auto (SLI-3 if supported),"
1102                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1103                  " 3 - select SLI-3");
1104
1105 LPFC_ATTR_R(enable_npiv, 0, 0, 1, "Enable NPIV functionality");
1106
1107 /*
1108 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1109 # until the timer expires. Value range is [0,255]. Default value is 30.
1110 */
1111 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1112 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1113 module_param(lpfc_nodev_tmo, int, 0);
1114 MODULE_PARM_DESC(lpfc_nodev_tmo,
1115                  "Seconds driver will hold I/O waiting "
1116                  "for a device to come back");
1117 static ssize_t
1118 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1119 {
1120         struct Scsi_Host  *shost = class_to_shost(cdev);
1121         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1122         int val = 0;
1123         val = vport->cfg_devloss_tmo;
1124         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1125 }
1126
1127 static int
1128 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1129 {
1130         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1131                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1132                 if (val != LPFC_DEF_DEVLOSS_TMO)
1133                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1134                                          "0402 Ignoring nodev_tmo module "
1135                                          "parameter because devloss_tmo is "
1136                                          "set.\n");
1137                 return 0;
1138         }
1139
1140         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1141                 vport->cfg_nodev_tmo = val;
1142                 vport->cfg_devloss_tmo = val;
1143                 return 0;
1144         }
1145         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1146                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1147                          " %d, allowed range is [%d, %d]\n",
1148                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1149         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1150         return -EINVAL;
1151 }
1152
1153 static void
1154 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1155 {
1156         struct Scsi_Host  *shost;
1157         struct lpfc_nodelist  *ndlp;
1158
1159         shost = lpfc_shost_from_vport(vport);
1160         spin_lock_irq(shost->host_lock);
1161         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
1162                 if (ndlp->rport)
1163                         ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
1164         spin_unlock_irq(shost->host_lock);
1165 }
1166
1167 static int
1168 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1169 {
1170         if (vport->dev_loss_tmo_changed ||
1171             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1172                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1173                                  "0401 Ignoring change to nodev_tmo "
1174                                  "because devloss_tmo is set.\n");
1175                 return 0;
1176         }
1177         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1178                 vport->cfg_nodev_tmo = val;
1179                 vport->cfg_devloss_tmo = val;
1180                 lpfc_update_rport_devloss_tmo(vport);
1181                 return 0;
1182         }
1183         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1184                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1185                          "%d, allowed range is [%d, %d]\n",
1186                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1187         return -EINVAL;
1188 }
1189
1190 lpfc_vport_param_store(nodev_tmo)
1191
1192 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1193                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1194
1195 /*
1196 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1197 # disappear until the timer expires. Value range is [0,255]. Default
1198 # value is 30.
1199 */
1200 module_param(lpfc_devloss_tmo, int, 0);
1201 MODULE_PARM_DESC(lpfc_devloss_tmo,
1202                  "Seconds driver will hold I/O waiting "
1203                  "for a device to come back");
1204 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1205                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1206 lpfc_vport_param_show(devloss_tmo)
1207 static int
1208 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1209 {
1210         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1211                 vport->cfg_nodev_tmo = val;
1212                 vport->cfg_devloss_tmo = val;
1213                 vport->dev_loss_tmo_changed = 1;
1214                 lpfc_update_rport_devloss_tmo(vport);
1215                 return 0;
1216         }
1217
1218         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1219                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1220                          " %d, allowed range is [%d, %d]\n",
1221                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1222         return -EINVAL;
1223 }
1224
1225 lpfc_vport_param_store(devloss_tmo)
1226 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1227         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1228
1229 /*
1230 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1231 # deluged with LOTS of information.
1232 # You can set a bit mask to record specific types of verbose messages:
1233 #
1234 # LOG_ELS                       0x1        ELS events
1235 # LOG_DISCOVERY                 0x2        Link discovery events
1236 # LOG_MBOX                      0x4        Mailbox events
1237 # LOG_INIT                      0x8        Initialization events
1238 # LOG_LINK_EVENT                0x10       Link events
1239 # LOG_FCP                       0x40       FCP traffic history
1240 # LOG_NODE                      0x80       Node table events
1241 # LOG_MISC                      0x400      Miscellaneous events
1242 # LOG_SLI                       0x800      SLI events
1243 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1244 # LOG_LIBDFC                    0x2000     LIBDFC events
1245 # LOG_ALL_MSG                   0xffff     LOG all messages
1246 */
1247 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1248                        "Verbose logging bit-mask");
1249
1250 /*
1251 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1252 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1253 */
1254 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1255                   "Max number of FCP commands we can queue to a specific LUN");
1256
1257 /*
1258 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1259 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1260 # value is greater than the maximum number of exchanges supported by the HBA,
1261 # then maximum number of exchanges supported by the HBA is used to determine
1262 # the hba_queue_depth.
1263 */
1264 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1265             "Max number of FCP commands we can queue to a lpfc HBA");
1266
1267 /*
1268 # peer_port_login:  This parameter allows/prevents logins
1269 # between peer ports hosted on the same physical port.
1270 # When this parameter is set 0 peer ports of same physical port
1271 # are not allowed to login to each other.
1272 # When this parameter is set 1 peer ports of same physical port
1273 # are allowed to login to each other.
1274 # Default value of this parameter is 0.
1275 */
1276 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1277                   "Allow peer ports on the same physical port to login to each "
1278                   "other.");
1279
1280 /*
1281 # restrict_login:  This parameter allows/prevents logins
1282 # between Virtual Ports and remote initiators.
1283 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1284 # other initiators and will attempt to PLOGI all remote ports.
1285 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1286 # remote ports and will not attempt to PLOGI to other initiators.
1287 # This parameter does not restrict to the physical port.
1288 # This parameter does not restrict logins to Fabric resident remote ports.
1289 # Default value of this parameter is 1.
1290 */
1291 static int lpfc_restrict_login = 1;
1292 module_param(lpfc_restrict_login, int, 0);
1293 MODULE_PARM_DESC(lpfc_restrict_login,
1294                  "Restrict virtual ports login to remote initiators.");
1295 lpfc_vport_param_show(restrict_login);
1296
1297 static int
1298 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1299 {
1300         if (val < 0 || val > 1) {
1301                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1302                                  "0449 lpfc_restrict_login attribute cannot "
1303                                  "be set to %d, allowed range is [0, 1]\n",
1304                                  val);
1305                 vport->cfg_restrict_login = 1;
1306                 return -EINVAL;
1307         }
1308         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1309                 vport->cfg_restrict_login = 0;
1310                 return 0;
1311         }
1312         vport->cfg_restrict_login = val;
1313         return 0;
1314 }
1315
1316 static int
1317 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1318 {
1319         if (val < 0 || val > 1) {
1320                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1321                                  "0450 lpfc_restrict_login attribute cannot "
1322                                  "be set to %d, allowed range is [0, 1]\n",
1323                                  val);
1324                 vport->cfg_restrict_login = 1;
1325                 return -EINVAL;
1326         }
1327         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1328                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1329                                  "0468 lpfc_restrict_login must be 0 for "
1330                                  "Physical ports.\n");
1331                 vport->cfg_restrict_login = 0;
1332                 return 0;
1333         }
1334         vport->cfg_restrict_login = val;
1335         return 0;
1336 }
1337 lpfc_vport_param_store(restrict_login);
1338 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1339                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1340
1341 /*
1342 # Some disk devices have a "select ID" or "select Target" capability.
1343 # From a protocol standpoint "select ID" usually means select the
1344 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1345 # annex" which contains a table that maps a "select ID" (a number
1346 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1347 # older drivers, the lpfc driver scans this table from low ALPA to high
1348 # ALPA.
1349 #
1350 # Turning on the scan-down variable (on  = 1, off = 0) will
1351 # cause the lpfc driver to use an inverted table, effectively
1352 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1353 #
1354 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1355 # and will not work across a fabric. Also this parameter will take
1356 # effect only in the case when ALPA map is not available.)
1357 */
1358 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1359                   "Start scanning for devices from highest ALPA to lowest");
1360
1361 /*
1362 # lpfc_topology:  link topology for init link
1363 #            0x0  = attempt loop mode then point-to-point
1364 #            0x01 = internal loopback mode
1365 #            0x02 = attempt point-to-point mode only
1366 #            0x04 = attempt loop mode only
1367 #            0x06 = attempt point-to-point mode then loop
1368 # Set point-to-point mode if you want to run as an N_Port.
1369 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1370 # Default value is 0.
1371 */
1372 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1373
1374 /*
1375 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1376 # connection.
1377 #       0  = auto select (default)
1378 #       1  = 1 Gigabaud
1379 #       2  = 2 Gigabaud
1380 #       4  = 4 Gigabaud
1381 #       8  = 8 Gigabaud
1382 # Value range is [0,8]. Default value is 0.
1383 */
1384 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1385
1386 /*
1387 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1388 # Value range is [2,3]. Default value is 3.
1389 */
1390 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1391                   "Select Fibre Channel class of service for FCP sequences");
1392
1393 /*
1394 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1395 # is [0,1]. Default value is 0.
1396 */
1397 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1398                    "Use ADISC on rediscovery to authenticate FCP devices");
1399
1400 /*
1401 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1402 # range is [0,1]. Default value is 0.
1403 */
1404 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1405
1406 /*
1407 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1408 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1409 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1410 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1411 # cr_delay is set to 0.
1412 */
1413 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1414                 "interrupt response is generated");
1415
1416 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1417                 "interrupt response is generated");
1418
1419 /*
1420 # lpfc_multi_ring_support:  Determines how many rings to spread available
1421 # cmd/rsp IOCB entries across.
1422 # Value range is [1,2]. Default value is 1.
1423 */
1424 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1425                 "SLI rings to spread IOCB entries across");
1426
1427 /*
1428 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1429 # identifies what rctl value to configure the additional ring for.
1430 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1431 */
1432 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1433              255, "Identifies RCTL for additional ring configuration");
1434
1435 /*
1436 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1437 # identifies what type value to configure the additional ring for.
1438 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1439 */
1440 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1441              255, "Identifies TYPE for additional ring configuration");
1442
1443 /*
1444 # lpfc_fdmi_on: controls FDMI support.
1445 #       0 = no FDMI support
1446 #       1 = support FDMI without attribute of hostname
1447 #       2 = support FDMI with attribute of hostname
1448 # Value range [0,2]. Default value is 0.
1449 */
1450 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1451
1452 /*
1453 # Specifies the maximum number of ELS cmds we can have outstanding (for
1454 # discovery). Value range is [1,64]. Default value = 32.
1455 */
1456 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1457                  "during discovery");
1458
1459 /*
1460 # lpfc_max_luns: maximum allowed LUN.
1461 # Value range is [0,65535]. Default value is 255.
1462 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1463 */
1464 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1465
1466 /*
1467 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1468 # Value range is [1,255], default value is 10.
1469 */
1470 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1471              "Milliseconds driver will wait between polling FCP ring");
1472
1473 /*
1474 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1475 #               support this feature
1476 #       0  = MSI disabled (default)
1477 #       1  = MSI enabled
1478 # Value range is [0,1]. Default value is 0.
1479 */
1480 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1481
1482
1483
1484 struct class_device_attribute *lpfc_hba_attrs[] = {
1485         &class_device_attr_info,
1486         &class_device_attr_serialnum,
1487         &class_device_attr_modeldesc,
1488         &class_device_attr_modelname,
1489         &class_device_attr_programtype,
1490         &class_device_attr_portnum,
1491         &class_device_attr_fwrev,
1492         &class_device_attr_hdw,
1493         &class_device_attr_option_rom_version,
1494         &class_device_attr_state,
1495         &class_device_attr_num_discovered_ports,
1496         &class_device_attr_lpfc_drvr_version,
1497         &class_device_attr_lpfc_log_verbose,
1498         &class_device_attr_lpfc_lun_queue_depth,
1499         &class_device_attr_lpfc_hba_queue_depth,
1500         &class_device_attr_lpfc_peer_port_login,
1501         &class_device_attr_lpfc_nodev_tmo,
1502         &class_device_attr_lpfc_devloss_tmo,
1503         &class_device_attr_lpfc_fcp_class,
1504         &class_device_attr_lpfc_use_adisc,
1505         &class_device_attr_lpfc_ack0,
1506         &class_device_attr_lpfc_topology,
1507         &class_device_attr_lpfc_scan_down,
1508         &class_device_attr_lpfc_link_speed,
1509         &class_device_attr_lpfc_cr_delay,
1510         &class_device_attr_lpfc_cr_count,
1511         &class_device_attr_lpfc_multi_ring_support,
1512         &class_device_attr_lpfc_multi_ring_rctl,
1513         &class_device_attr_lpfc_multi_ring_type,
1514         &class_device_attr_lpfc_fdmi_on,
1515         &class_device_attr_lpfc_max_luns,
1516         &class_device_attr_lpfc_enable_npiv,
1517         &class_device_attr_nport_evt_cnt,
1518         &class_device_attr_board_mode,
1519         &class_device_attr_max_vpi,
1520         &class_device_attr_used_vpi,
1521         &class_device_attr_max_rpi,
1522         &class_device_attr_used_rpi,
1523         &class_device_attr_max_xri,
1524         &class_device_attr_used_xri,
1525         &class_device_attr_npiv_info,
1526         &class_device_attr_issue_reset,
1527         &class_device_attr_lpfc_poll,
1528         &class_device_attr_lpfc_poll_tmo,
1529         &class_device_attr_lpfc_use_msi,
1530         &class_device_attr_lpfc_soft_wwnn,
1531         &class_device_attr_lpfc_soft_wwpn,
1532         &class_device_attr_lpfc_soft_wwn_enable,
1533         NULL,
1534 };
1535
1536 struct class_device_attribute *lpfc_vport_attrs[] = {
1537         &class_device_attr_info,
1538         &class_device_attr_state,
1539         &class_device_attr_num_discovered_ports,
1540         &class_device_attr_lpfc_drvr_version,
1541
1542         &class_device_attr_lpfc_log_verbose,
1543         &class_device_attr_lpfc_lun_queue_depth,
1544         &class_device_attr_lpfc_nodev_tmo,
1545         &class_device_attr_lpfc_devloss_tmo,
1546         &class_device_attr_lpfc_hba_queue_depth,
1547         &class_device_attr_lpfc_peer_port_login,
1548         &class_device_attr_lpfc_restrict_login,
1549         &class_device_attr_lpfc_fcp_class,
1550         &class_device_attr_lpfc_use_adisc,
1551         &class_device_attr_lpfc_fdmi_on,
1552         &class_device_attr_lpfc_max_luns,
1553         &class_device_attr_nport_evt_cnt,
1554         &class_device_attr_npiv_info,
1555         NULL,
1556 };
1557
1558 static ssize_t
1559 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1560                    char *buf, loff_t off, size_t count)
1561 {
1562         size_t buf_off;
1563         struct class_device *cdev = container_of(kobj, struct class_device,
1564                                                  kobj);
1565         struct Scsi_Host  *shost = class_to_shost(cdev);
1566         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1567         struct lpfc_hba   *phba = vport->phba;
1568
1569         if ((off + count) > FF_REG_AREA_SIZE)
1570                 return -ERANGE;
1571
1572         if (count == 0) return 0;
1573
1574         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1575                 return -EINVAL;
1576
1577         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1578                 return -EPERM;
1579         }
1580
1581         spin_lock_irq(&phba->hbalock);
1582         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1583                 writel(*((uint32_t *)(buf + buf_off)),
1584                        phba->ctrl_regs_memmap_p + off + buf_off);
1585
1586         spin_unlock_irq(&phba->hbalock);
1587
1588         return count;
1589 }
1590
1591 static ssize_t
1592 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1593                   char *buf, loff_t off, size_t count)
1594 {
1595         size_t buf_off;
1596         uint32_t * tmp_ptr;
1597         struct class_device *cdev = container_of(kobj, struct class_device,
1598                                                  kobj);
1599         struct Scsi_Host  *shost = class_to_shost(cdev);
1600         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1601         struct lpfc_hba   *phba = vport->phba;
1602
1603         if (off > FF_REG_AREA_SIZE)
1604                 return -ERANGE;
1605
1606         if ((off + count) > FF_REG_AREA_SIZE)
1607                 count = FF_REG_AREA_SIZE - off;
1608
1609         if (count == 0) return 0;
1610
1611         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1612                 return -EINVAL;
1613
1614         spin_lock_irq(&phba->hbalock);
1615
1616         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1617                 tmp_ptr = (uint32_t *)(buf + buf_off);
1618                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1619         }
1620
1621         spin_unlock_irq(&phba->hbalock);
1622
1623         return count;
1624 }
1625
1626 static struct bin_attribute sysfs_ctlreg_attr = {
1627         .attr = {
1628                 .name = "ctlreg",
1629                 .mode = S_IRUSR | S_IWUSR,
1630         },
1631         .size = 256,
1632         .read = sysfs_ctlreg_read,
1633         .write = sysfs_ctlreg_write,
1634 };
1635
1636
1637 static void
1638 sysfs_mbox_idle(struct lpfc_hba *phba)
1639 {
1640         phba->sysfs_mbox.state = SMBOX_IDLE;
1641         phba->sysfs_mbox.offset = 0;
1642
1643         if (phba->sysfs_mbox.mbox) {
1644                 mempool_free(phba->sysfs_mbox.mbox,
1645                              phba->mbox_mem_pool);
1646                 phba->sysfs_mbox.mbox = NULL;
1647         }
1648 }
1649
1650 static ssize_t
1651 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1652                  char *buf, loff_t off, size_t count)
1653 {
1654         struct class_device *cdev = container_of(kobj, struct class_device,
1655                                                  kobj);
1656         struct Scsi_Host  *shost = class_to_shost(cdev);
1657         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1658         struct lpfc_hba   *phba = vport->phba;
1659         struct lpfcMboxq  *mbox = NULL;
1660
1661         if ((count + off) > MAILBOX_CMD_SIZE)
1662                 return -ERANGE;
1663
1664         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1665                 return -EINVAL;
1666
1667         if (count == 0)
1668                 return 0;
1669
1670         if (off == 0) {
1671                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1672                 if (!mbox)
1673                         return -ENOMEM;
1674                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1675         }
1676
1677         spin_lock_irq(&phba->hbalock);
1678
1679         if (off == 0) {
1680                 if (phba->sysfs_mbox.mbox)
1681                         mempool_free(mbox, phba->mbox_mem_pool);
1682                 else
1683                         phba->sysfs_mbox.mbox = mbox;
1684                 phba->sysfs_mbox.state = SMBOX_WRITING;
1685         } else {
1686                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1687                     phba->sysfs_mbox.offset != off           ||
1688                     phba->sysfs_mbox.mbox   == NULL) {
1689                         sysfs_mbox_idle(phba);
1690                         spin_unlock_irq(&phba->hbalock);
1691                         return -EAGAIN;
1692                 }
1693         }
1694
1695         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1696                buf, count);
1697
1698         phba->sysfs_mbox.offset = off + count;
1699
1700         spin_unlock_irq(&phba->hbalock);
1701
1702         return count;
1703 }
1704
1705 static ssize_t
1706 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1707                 char *buf, loff_t off, size_t count)
1708 {
1709         struct class_device *cdev = container_of(kobj, struct class_device,
1710                                                  kobj);
1711         struct Scsi_Host  *shost = class_to_shost(cdev);
1712         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1713         struct lpfc_hba   *phba = vport->phba;
1714         int rc;
1715
1716         if (off > MAILBOX_CMD_SIZE)
1717                 return -ERANGE;
1718
1719         if ((count + off) > MAILBOX_CMD_SIZE)
1720                 count = MAILBOX_CMD_SIZE - off;
1721
1722         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1723                 return -EINVAL;
1724
1725         if (off && count == 0)
1726                 return 0;
1727
1728         spin_lock_irq(&phba->hbalock);
1729
1730         if (off == 0 &&
1731             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1732             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1733
1734                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1735                         /* Offline only */
1736                 case MBX_WRITE_NV:
1737                 case MBX_INIT_LINK:
1738                 case MBX_DOWN_LINK:
1739                 case MBX_CONFIG_LINK:
1740                 case MBX_CONFIG_RING:
1741                 case MBX_RESET_RING:
1742                 case MBX_UNREG_LOGIN:
1743                 case MBX_CLEAR_LA:
1744                 case MBX_DUMP_CONTEXT:
1745                 case MBX_RUN_DIAGS:
1746                 case MBX_RESTART:
1747                 case MBX_FLASH_WR_ULA:
1748                 case MBX_SET_MASK:
1749                 case MBX_SET_SLIM:
1750                 case MBX_SET_DEBUG:
1751                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1752                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1753                                        "is illegal in on-line state\n",
1754                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1755                                 sysfs_mbox_idle(phba);
1756                                 spin_unlock_irq(&phba->hbalock);
1757                                 return -EPERM;
1758                         }
1759                 case MBX_LOAD_SM:
1760                 case MBX_READ_NV:
1761                 case MBX_READ_CONFIG:
1762                 case MBX_READ_RCONFIG:
1763                 case MBX_READ_STATUS:
1764                 case MBX_READ_XRI:
1765                 case MBX_READ_REV:
1766                 case MBX_READ_LNK_STAT:
1767                 case MBX_DUMP_MEMORY:
1768                 case MBX_DOWN_LOAD:
1769                 case MBX_UPDATE_CFG:
1770                 case MBX_KILL_BOARD:
1771                 case MBX_LOAD_AREA:
1772                 case MBX_LOAD_EXP_ROM:
1773                 case MBX_BEACON:
1774                 case MBX_DEL_LD_ENTRY:
1775                         break;
1776                 case MBX_READ_SPARM64:
1777                 case MBX_READ_LA:
1778                 case MBX_READ_LA64:
1779                 case MBX_REG_LOGIN:
1780                 case MBX_REG_LOGIN64:
1781                 case MBX_CONFIG_PORT:
1782                 case MBX_RUN_BIU_DIAG:
1783                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1784                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1785                         sysfs_mbox_idle(phba);
1786                         spin_unlock_irq(&phba->hbalock);
1787                         return -EPERM;
1788                 default:
1789                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1790                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1791                         sysfs_mbox_idle(phba);
1792                         spin_unlock_irq(&phba->hbalock);
1793                         return -EPERM;
1794                 }
1795
1796                 phba->sysfs_mbox.mbox->vport = vport;
1797
1798                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1799                         sysfs_mbox_idle(phba);
1800                         spin_unlock_irq(&phba->hbalock);
1801                         return  -EAGAIN;
1802                 }
1803
1804                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1805                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1806
1807                         spin_unlock_irq(&phba->hbalock);
1808                         rc = lpfc_sli_issue_mbox (phba,
1809                                                   phba->sysfs_mbox.mbox,
1810                                                   MBX_POLL);
1811                         spin_lock_irq(&phba->hbalock);
1812
1813                 } else {
1814                         spin_unlock_irq(&phba->hbalock);
1815                         rc = lpfc_sli_issue_mbox_wait (phba,
1816                                                        phba->sysfs_mbox.mbox,
1817                                 lpfc_mbox_tmo_val(phba,
1818                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1819                         spin_lock_irq(&phba->hbalock);
1820                 }
1821
1822                 if (rc != MBX_SUCCESS) {
1823                         if (rc == MBX_TIMEOUT) {
1824                                 phba->sysfs_mbox.mbox = NULL;
1825                         }
1826                         sysfs_mbox_idle(phba);
1827                         spin_unlock_irq(&phba->hbalock);
1828                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1829                 }
1830                 phba->sysfs_mbox.state = SMBOX_READING;
1831         }
1832         else if (phba->sysfs_mbox.offset != off ||
1833                  phba->sysfs_mbox.state  != SMBOX_READING) {
1834                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1835                 sysfs_mbox_idle(phba);
1836                 spin_unlock_irq(&phba->hbalock);
1837                 return -EAGAIN;
1838         }
1839
1840         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1841
1842         phba->sysfs_mbox.offset = off + count;
1843
1844         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1845                 sysfs_mbox_idle(phba);
1846
1847         spin_unlock_irq(&phba->hbalock);
1848
1849         return count;
1850 }
1851
1852 static struct bin_attribute sysfs_mbox_attr = {
1853         .attr = {
1854                 .name = "mbox",
1855                 .mode = S_IRUSR | S_IWUSR,
1856         },
1857         .size = MAILBOX_CMD_SIZE,
1858         .read = sysfs_mbox_read,
1859         .write = sysfs_mbox_write,
1860 };
1861
1862 int
1863 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1864 {
1865         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1866         int error;
1867
1868         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1869                                       &sysfs_ctlreg_attr);
1870         if (error)
1871                 goto out;
1872
1873         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1874                                       &sysfs_mbox_attr);
1875         if (error)
1876                 goto out_remove_ctlreg_attr;
1877
1878         return 0;
1879 out_remove_ctlreg_attr:
1880         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1881 out:
1882         return error;
1883 }
1884
1885 void
1886 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1887 {
1888         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1889
1890         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1891         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1892 }
1893
1894
1895 /*
1896  * Dynamic FC Host Attributes Support
1897  */
1898
1899 static void
1900 lpfc_get_host_port_id(struct Scsi_Host *shost)
1901 {
1902         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1903
1904         /* note: fc_myDID already in cpu endianness */
1905         fc_host_port_id(shost) = vport->fc_myDID;
1906 }
1907
1908 static void
1909 lpfc_get_host_port_type(struct Scsi_Host *shost)
1910 {
1911         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1912         struct lpfc_hba   *phba = vport->phba;
1913
1914         spin_lock_irq(shost->host_lock);
1915
1916         if (vport->port_type == LPFC_NPIV_PORT) {
1917                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1918         } else if (lpfc_is_link_up(phba)) {
1919                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1920                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1921                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1922                         else
1923                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1924                 } else {
1925                         if (vport->fc_flag & FC_FABRIC)
1926                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1927                         else
1928                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1929                 }
1930         } else
1931                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1932
1933         spin_unlock_irq(shost->host_lock);
1934 }
1935
1936 static void
1937 lpfc_get_host_port_state(struct Scsi_Host *shost)
1938 {
1939         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1940         struct lpfc_hba   *phba = vport->phba;
1941
1942         spin_lock_irq(shost->host_lock);
1943
1944         if (vport->fc_flag & FC_OFFLINE_MODE)
1945                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1946         else {
1947                 switch (phba->link_state) {
1948                 case LPFC_LINK_UNKNOWN:
1949                 case LPFC_LINK_DOWN:
1950                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1951                         break;
1952                 case LPFC_LINK_UP:
1953                 case LPFC_CLEAR_LA:
1954                 case LPFC_HBA_READY:
1955                         /* Links up, beyond this port_type reports state */
1956                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1957                         break;
1958                 case LPFC_HBA_ERROR:
1959                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1960                         break;
1961                 default:
1962                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1963                         break;
1964                 }
1965         }
1966
1967         spin_unlock_irq(shost->host_lock);
1968 }
1969
1970 static void
1971 lpfc_get_host_speed(struct Scsi_Host *shost)
1972 {
1973         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1974         struct lpfc_hba   *phba = vport->phba;
1975
1976         spin_lock_irq(shost->host_lock);
1977
1978         if (lpfc_is_link_up(phba)) {
1979                 switch(phba->fc_linkspeed) {
1980                         case LA_1GHZ_LINK:
1981                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1982                         break;
1983                         case LA_2GHZ_LINK:
1984                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1985                         break;
1986                         case LA_4GHZ_LINK:
1987                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1988                         break;
1989                         case LA_8GHZ_LINK:
1990                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
1991                         break;
1992                         default:
1993                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1994                         break;
1995                 }
1996         }
1997
1998         spin_unlock_irq(shost->host_lock);
1999 }
2000
2001 static void
2002 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2003 {
2004         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2005         struct lpfc_hba   *phba = vport->phba;
2006         u64 node_name;
2007
2008         spin_lock_irq(shost->host_lock);
2009
2010         if ((vport->fc_flag & FC_FABRIC) ||
2011             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2012              (vport->fc_flag & FC_PUBLIC_LOOP)))
2013                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2014         else
2015                 /* fabric is local port if there is no F/FL_Port */
2016                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2017
2018         spin_unlock_irq(shost->host_lock);
2019
2020         fc_host_fabric_name(shost) = node_name;
2021 }
2022
2023 static struct fc_host_statistics *
2024 lpfc_get_stats(struct Scsi_Host *shost)
2025 {
2026         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2027         struct lpfc_hba   *phba = vport->phba;
2028         struct lpfc_sli   *psli = &phba->sli;
2029         struct fc_host_statistics *hs = &phba->link_stats;
2030         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2031         LPFC_MBOXQ_t *pmboxq;
2032         MAILBOX_t *pmb;
2033         unsigned long seconds;
2034         int rc = 0;
2035
2036         /*
2037          * prevent udev from issuing mailbox commands until the port is
2038          * configured.
2039          */
2040         if (phba->link_state < LPFC_LINK_DOWN ||
2041             !phba->mbox_mem_pool ||
2042             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2043                 return NULL;
2044
2045         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2046                 return NULL;
2047
2048         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2049         if (!pmboxq)
2050                 return NULL;
2051         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2052
2053         pmb = &pmboxq->mb;
2054         pmb->mbxCommand = MBX_READ_STATUS;
2055         pmb->mbxOwner = OWN_HOST;
2056         pmboxq->context1 = NULL;
2057         pmboxq->vport = vport;
2058
2059         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2060                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2061                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2062         else
2063                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2064
2065         if (rc != MBX_SUCCESS) {
2066                 if (rc != MBX_TIMEOUT)
2067                         mempool_free(pmboxq, phba->mbox_mem_pool);
2068                 return NULL;
2069         }
2070
2071         memset(hs, 0, sizeof (struct fc_host_statistics));
2072
2073         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2074         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2075         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2076         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2077
2078         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2079         pmb->mbxCommand = MBX_READ_LNK_STAT;
2080         pmb->mbxOwner = OWN_HOST;
2081         pmboxq->context1 = NULL;
2082         pmboxq->vport = vport;
2083
2084         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2085             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2086                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2087         else
2088                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2089
2090         if (rc != MBX_SUCCESS) {
2091                 if (rc != MBX_TIMEOUT)
2092                         mempool_free(pmboxq, phba->mbox_mem_pool);
2093                 return NULL;
2094         }
2095
2096         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2097         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2098         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2099         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2100         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2101         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2102         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2103
2104         hs->link_failure_count -= lso->link_failure_count;
2105         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2106         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2107         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2108         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2109         hs->invalid_crc_count -= lso->invalid_crc_count;
2110         hs->error_frames -= lso->error_frames;
2111
2112         if (phba->fc_topology == TOPOLOGY_LOOP) {
2113                 hs->lip_count = (phba->fc_eventTag >> 1);
2114                 hs->lip_count -= lso->link_events;
2115                 hs->nos_count = -1;
2116         } else {
2117                 hs->lip_count = -1;
2118                 hs->nos_count = (phba->fc_eventTag >> 1);
2119                 hs->nos_count -= lso->link_events;
2120         }
2121
2122         hs->dumped_frames = -1;
2123
2124         seconds = get_seconds();
2125         if (seconds < psli->stats_start)
2126                 hs->seconds_since_last_reset = seconds +
2127                                 ((unsigned long)-1 - psli->stats_start);
2128         else
2129                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2130
2131         mempool_free(pmboxq, phba->mbox_mem_pool);
2132
2133         return hs;
2134 }
2135
2136 static void
2137 lpfc_reset_stats(struct Scsi_Host *shost)
2138 {
2139         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2140         struct lpfc_hba   *phba = vport->phba;
2141         struct lpfc_sli   *psli = &phba->sli;
2142         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2143         LPFC_MBOXQ_t *pmboxq;
2144         MAILBOX_t *pmb;
2145         int rc = 0;
2146
2147         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2148                 return;
2149
2150         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2151         if (!pmboxq)
2152                 return;
2153         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2154
2155         pmb = &pmboxq->mb;
2156         pmb->mbxCommand = MBX_READ_STATUS;
2157         pmb->mbxOwner = OWN_HOST;
2158         pmb->un.varWords[0] = 0x1; /* reset request */
2159         pmboxq->context1 = NULL;
2160         pmboxq->vport = vport;
2161
2162         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2163                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2164                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2165         else
2166                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2167
2168         if (rc != MBX_SUCCESS) {
2169                 if (rc != MBX_TIMEOUT)
2170                         mempool_free(pmboxq, phba->mbox_mem_pool);
2171                 return;
2172         }
2173
2174         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2175         pmb->mbxCommand = MBX_READ_LNK_STAT;
2176         pmb->mbxOwner = OWN_HOST;
2177         pmboxq->context1 = NULL;
2178         pmboxq->vport = vport;
2179
2180         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2181             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2182                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2183         else
2184                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2185
2186         if (rc != MBX_SUCCESS) {
2187                 if (rc != MBX_TIMEOUT)
2188                         mempool_free( pmboxq, phba->mbox_mem_pool);
2189                 return;
2190         }
2191
2192         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2193         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2194         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2195         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2196         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2197         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2198         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2199         lso->link_events = (phba->fc_eventTag >> 1);
2200
2201         psli->stats_start = get_seconds();
2202
2203         mempool_free(pmboxq, phba->mbox_mem_pool);
2204
2205         return;
2206 }
2207
2208 /*
2209  * The LPFC driver treats linkdown handling as target loss events so there
2210  * are no sysfs handlers for link_down_tmo.
2211  */
2212
2213 static struct lpfc_nodelist *
2214 lpfc_get_node_by_target(struct scsi_target *starget)
2215 {
2216         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2217         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2218         struct lpfc_nodelist *ndlp;
2219
2220         spin_lock_irq(shost->host_lock);
2221         /* Search for this, mapped, target ID */
2222         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2223                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2224                     starget->id == ndlp->nlp_sid) {
2225                         spin_unlock_irq(shost->host_lock);
2226                         return ndlp;
2227                 }
2228         }
2229         spin_unlock_irq(shost->host_lock);
2230         return NULL;
2231 }
2232
2233 static void
2234 lpfc_get_starget_port_id(struct scsi_target *starget)
2235 {
2236         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2237
2238         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2239 }
2240
2241 static void
2242 lpfc_get_starget_node_name(struct scsi_target *starget)
2243 {
2244         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2245
2246         fc_starget_node_name(starget) =
2247                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2248 }
2249
2250 static void
2251 lpfc_get_starget_port_name(struct scsi_target *starget)
2252 {
2253         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2254
2255         fc_starget_port_name(starget) =
2256                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2257 }
2258
2259 static void
2260 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2261 {
2262         if (timeout)
2263                 rport->dev_loss_tmo = timeout;
2264         else
2265                 rport->dev_loss_tmo = 1;
2266 }
2267
2268
2269 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2270 static ssize_t                                                          \
2271 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2272 {                                                                       \
2273         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2274         struct lpfc_rport_data *rdata = rport->hostdata;                \
2275         return snprintf(buf, sz, format_string,                         \
2276                 (rdata->target) ? cast rdata->target->field : 0);       \
2277 }
2278
2279 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2280         lpfc_rport_show_function(field, format_string, sz, )            \
2281 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2282
2283
2284 struct fc_function_template lpfc_transport_functions = {
2285         /* fixed attributes the driver supports */
2286         .show_host_node_name = 1,
2287         .show_host_port_name = 1,
2288         .show_host_supported_classes = 1,
2289         .show_host_supported_fc4s = 1,
2290         .show_host_supported_speeds = 1,
2291         .show_host_maxframe_size = 1,
2292
2293         /* dynamic attributes the driver supports */
2294         .get_host_port_id = lpfc_get_host_port_id,
2295         .show_host_port_id = 1,
2296
2297         .get_host_port_type = lpfc_get_host_port_type,
2298         .show_host_port_type = 1,
2299
2300         .get_host_port_state = lpfc_get_host_port_state,
2301         .show_host_port_state = 1,
2302
2303         /* active_fc4s is shown but doesn't change (thus no get function) */
2304         .show_host_active_fc4s = 1,
2305
2306         .get_host_speed = lpfc_get_host_speed,
2307         .show_host_speed = 1,
2308
2309         .get_host_fabric_name = lpfc_get_host_fabric_name,
2310         .show_host_fabric_name = 1,
2311
2312         /*
2313          * The LPFC driver treats linkdown handling as target loss events
2314          * so there are no sysfs handlers for link_down_tmo.
2315          */
2316
2317         .get_fc_host_stats = lpfc_get_stats,
2318         .reset_fc_host_stats = lpfc_reset_stats,
2319
2320         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2321         .show_rport_maxframe_size = 1,
2322         .show_rport_supported_classes = 1,
2323
2324         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2325         .show_rport_dev_loss_tmo = 1,
2326
2327         .get_starget_port_id  = lpfc_get_starget_port_id,
2328         .show_starget_port_id = 1,
2329
2330         .get_starget_node_name = lpfc_get_starget_node_name,
2331         .show_starget_node_name = 1,
2332
2333         .get_starget_port_name = lpfc_get_starget_port_name,
2334         .show_starget_port_name = 1,
2335
2336         .issue_fc_host_lip = lpfc_issue_lip,
2337         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2338         .terminate_rport_io = lpfc_terminate_rport_io,
2339
2340         .vport_create = lpfc_vport_create,
2341         .vport_delete = lpfc_vport_delete,
2342         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2343 };
2344
2345 struct fc_function_template lpfc_vport_transport_functions = {
2346         /* fixed attributes the driver supports */
2347         .show_host_node_name = 1,
2348         .show_host_port_name = 1,
2349         .show_host_supported_classes = 1,
2350         .show_host_supported_fc4s = 1,
2351         .show_host_supported_speeds = 1,
2352         .show_host_maxframe_size = 1,
2353
2354         /* dynamic attributes the driver supports */
2355         .get_host_port_id = lpfc_get_host_port_id,
2356         .show_host_port_id = 1,
2357
2358         .get_host_port_type = lpfc_get_host_port_type,
2359         .show_host_port_type = 1,
2360
2361         .get_host_port_state = lpfc_get_host_port_state,
2362         .show_host_port_state = 1,
2363
2364         /* active_fc4s is shown but doesn't change (thus no get function) */
2365         .show_host_active_fc4s = 1,
2366
2367         .get_host_speed = lpfc_get_host_speed,
2368         .show_host_speed = 1,
2369
2370         .get_host_fabric_name = lpfc_get_host_fabric_name,
2371         .show_host_fabric_name = 1,
2372
2373         /*
2374          * The LPFC driver treats linkdown handling as target loss events
2375          * so there are no sysfs handlers for link_down_tmo.
2376          */
2377
2378         .get_fc_host_stats = lpfc_get_stats,
2379         .reset_fc_host_stats = lpfc_reset_stats,
2380
2381         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2382         .show_rport_maxframe_size = 1,
2383         .show_rport_supported_classes = 1,
2384
2385         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2386         .show_rport_dev_loss_tmo = 1,
2387
2388         .get_starget_port_id  = lpfc_get_starget_port_id,
2389         .show_starget_port_id = 1,
2390
2391         .get_starget_node_name = lpfc_get_starget_node_name,
2392         .show_starget_node_name = 1,
2393
2394         .get_starget_port_name = lpfc_get_starget_port_name,
2395         .show_starget_port_name = 1,
2396
2397         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2398         .terminate_rport_io = lpfc_terminate_rport_io,
2399
2400         .vport_disable = lpfc_vport_disable,
2401 };
2402
2403 void
2404 lpfc_get_cfgparam(struct lpfc_hba *phba)
2405 {
2406         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2407         lpfc_cr_count_init(phba, lpfc_cr_count);
2408         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2409         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2410         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2411         lpfc_ack0_init(phba, lpfc_ack0);
2412         lpfc_topology_init(phba, lpfc_topology);
2413         lpfc_link_speed_init(phba, lpfc_link_speed);
2414         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2415         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2416         lpfc_use_msi_init(phba, lpfc_use_msi);
2417         phba->cfg_poll = lpfc_poll;
2418         phba->cfg_soft_wwnn = 0L;
2419         phba->cfg_soft_wwpn = 0L;
2420         /*
2421          * The total number of segments is the configuration value plus 2
2422          * since the IOCB need a command and response bde.
2423          */
2424         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2425         /*
2426          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2427          * used to create the sg_dma_buf_pool must be dynamically calculated
2428          */
2429         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2430                         sizeof(struct fcp_rsp) +
2431                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2432         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2433         return;
2434 }
2435
2436 void
2437 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2438 {
2439         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2440         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2441         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2442         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2443         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2444         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2445         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2446         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2447         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2448         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2449         lpfc_max_luns_init(vport, lpfc_max_luns);
2450         lpfc_scan_down_init(vport, lpfc_scan_down);
2451         return;
2452 }