SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/lpfc/lpfc_attr.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 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_temp_sensor_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         return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
  95 }
  96
  97 static ssize_t
  98 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  99 {
 100         struct Scsi_Host  *shost = class_to_shost(cdev);
 101         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 102         struct lpfc_hba   *phba = vport->phba;
 103
 104         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
 105 }
 106
 107 static ssize_t
 108 lpfc_modelname_show(struct class_device *cdev, char *buf)
 109 {
 110         struct Scsi_Host  *shost = class_to_shost(cdev);
 111         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 112         struct lpfc_hba   *phba = vport->phba;
 113
 114         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 115 }
 116
 117 static ssize_t
 118 lpfc_programtype_show(struct class_device *cdev, char *buf)
 119 {
 120         struct Scsi_Host  *shost = class_to_shost(cdev);
 121         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 122         struct lpfc_hba   *phba = vport->phba;
 123
 124         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 125 }
 126
 127 static ssize_t
 128 lpfc_vportnum_show(struct class_device *cdev, char *buf)
 129 {
 130         struct Scsi_Host  *shost = class_to_shost(cdev);
 131         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 132         struct lpfc_hba   *phba = vport->phba;
 133
 134         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 135 }
 136
 137 static ssize_t
 138 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 139 {
 140         struct Scsi_Host  *shost = class_to_shost(cdev);
 141         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 142         struct lpfc_hba   *phba = vport->phba;
 143         char fwrev[32];
 144
 145         lpfc_decode_firmware_rev(phba, fwrev, 1);
 146         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 147 }
 148
 149 static ssize_t
 150 lpfc_hdw_show(struct class_device *cdev, char *buf)
 151 {
 152         char hdw[9];
 153         struct Scsi_Host  *shost = class_to_shost(cdev);
 154         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 155         struct lpfc_hba   *phba = vport->phba;
 156         lpfc_vpd_t *vp = &phba->vpd;
 157
 158         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 159         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 160 }
 161 static ssize_t
 162 lpfc_option_rom_version_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
 168         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 169 }
 170 static ssize_t
 171 lpfc_state_show(struct class_device *cdev, char *buf)
 172 {
 173         struct Scsi_Host  *shost = class_to_shost(cdev);
 174         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 175         struct lpfc_hba   *phba = vport->phba;
 176         int  len = 0;
 177
 178         switch (phba->link_state) {
 179         case LPFC_LINK_UNKNOWN:
 180         case LPFC_WARM_START:
 181         case LPFC_INIT_START:
 182         case LPFC_INIT_MBX_CMDS:
 183         case LPFC_LINK_DOWN:
 184         case LPFC_HBA_ERROR:
 185                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 186                 break;
 187         case LPFC_LINK_UP:
 188         case LPFC_CLEAR_LA:
 189         case LPFC_HBA_READY:
 190                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
 191
 192                 switch (vport->port_state) {
 193                 case LPFC_LOCAL_CFG_LINK:
 194                         len += snprintf(buf + len, PAGE_SIZE-len,
 195                                         "Configuring Link\n");
 196                         break;
 197                 case LPFC_FDISC:
 198                 case LPFC_FLOGI:
 199                 case LPFC_FABRIC_CFG_LINK:
 200                 case LPFC_NS_REG:
 201                 case LPFC_NS_QRY:
 202                 case LPFC_BUILD_DISC_LIST:
 203                 case LPFC_DISC_AUTH:
 204                         len += snprintf(buf + len, PAGE_SIZE - len,
 205                                         "Discovery\n");
 206                         break;
 207                 case LPFC_VPORT_READY:
 208                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 209                         break;
 210
 211                 case LPFC_VPORT_FAILED:
 212                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 213                         break;
 214
 215                 case LPFC_VPORT_UNKNOWN:
 216                         len += snprintf(buf + len, PAGE_SIZE - len,
 217                                         "Unknown\n");
 218                         break;
 219                 }
 220
 221                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 222                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 223                                 len += snprintf(buf + len, PAGE_SIZE-len,
 224                                                 "   Public Loop\n");
 225                         else
 226                                 len += snprintf(buf + len, PAGE_SIZE-len,
 227                                                 "   Private Loop\n");
 228                 } else {
 229                         if (vport->fc_flag & FC_FABRIC)
 230                                 len += snprintf(buf + len, PAGE_SIZE-len,
 231                                                 "   Fabric\n");
 232                         else
 233                                 len += snprintf(buf + len, PAGE_SIZE-len,
 234                                                 "   Point-2-Point\n");
 235                 }
 236         }
 237
 238         return len;
 239 }
 240
 241 static ssize_t
 242 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 243 {
 244         struct Scsi_Host  *shost = class_to_shost(cdev);
 245         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 246
 247         return snprintf(buf, PAGE_SIZE, "%d\n",
 248                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 249 }
 250
 251
 252 static int
 253 lpfc_issue_lip(struct Scsi_Host *shost)
 254 {
 255         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 256         struct lpfc_hba   *phba = vport->phba;
 257         LPFC_MBOXQ_t *pmboxq;
 258         int mbxstatus = MBXERR_ERROR;
 259
 260         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 261             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
 262             (vport->port_state != LPFC_VPORT_READY))
 263                 return -EPERM;
 264
 265         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 266
 267         if (!pmboxq)
 268                 return -ENOMEM;
 269
 270         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 271         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 272         pmboxq->mb.mbxOwner = OWN_HOST;
 273
 274         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 275
 276         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 277                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 278                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 279                                phba->cfg_link_speed);
 280                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 281                                                      phba->fc_ratov * 2);
 282         }
 283
 284         lpfc_set_loopback_flag(phba);
 285         if (mbxstatus != MBX_TIMEOUT)
 286                 mempool_free(pmboxq, phba->mbox_mem_pool);
 287
 288         if (mbxstatus == MBXERR_ERROR)
 289                 return -EIO;
 290
 291         return 0;
 292 }
 293
 294 static int
 295 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 296 {
 297         struct completion online_compl;
 298         struct lpfc_sli_ring *pring;
 299         struct lpfc_sli *psli;
 300         int status = 0;
 301         int cnt = 0;
 302         int i;
 303
 304         init_completion(&online_compl);
 305         lpfc_workq_post_event(phba, &status, &online_compl,
 306                               LPFC_EVT_OFFLINE_PREP);
 307         wait_for_completion(&online_compl);
 308
 309         if (status != 0)
 310                 return -EIO;
 311
 312         psli = &phba->sli;
 313
 314         for (i = 0; i < psli->num_rings; i++) {
 315                 pring = &psli->ring[i];
 316                 /* The linkdown event takes 30 seconds to timeout. */
 317                 while (pring->txcmplq_cnt) {
 318                         msleep(10);
 319                         if (cnt++ > 3000) {
 320                                 lpfc_printf_log(phba,
 321                                         KERN_WARNING, LOG_INIT,
 322                                         "0466 Outstanding IO when "
 323                                         "bringing Adapter offline\n");
 324                                 break;
 325                         }
 326                 }
 327         }
 328
 329         init_completion(&online_compl);
 330         lpfc_workq_post_event(phba, &status, &online_compl, type);
 331         wait_for_completion(&online_compl);
 332
 333         if (status != 0)
 334                 return -EIO;
 335
 336         return 0;
 337 }
 338
 339 static int
 340 lpfc_selective_reset(struct lpfc_hba *phba)
 341 {
 342         struct completion online_compl;
 343         int status = 0;
 344
 345         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 346
 347         if (status != 0)
 348                 return status;
 349
 350         init_completion(&online_compl);
 351         lpfc_workq_post_event(phba, &status, &online_compl,
 352                               LPFC_EVT_ONLINE);
 353         wait_for_completion(&online_compl);
 354
 355         if (status != 0)
 356                 return -EIO;
 357
 358         return 0;
 359 }
 360
 361 static ssize_t
 362 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 363 {
 364         struct Scsi_Host  *shost = class_to_shost(cdev);
 365         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 366         struct lpfc_hba   *phba = vport->phba;
 367
 368         int status = -EINVAL;
 369
 370         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 371                 status = lpfc_selective_reset(phba);
 372
 373         if (status == 0)
 374                 return strlen(buf);
 375         else
 376                 return status;
 377 }
 378
 379 static ssize_t
 380 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 381 {
 382         struct Scsi_Host  *shost = class_to_shost(cdev);
 383         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 384         struct lpfc_hba   *phba = vport->phba;
 385
 386         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 387 }
 388
 389 static ssize_t
 390 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 391 {
 392         struct Scsi_Host  *shost = class_to_shost(cdev);
 393         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 394         struct lpfc_hba   *phba = vport->phba;
 395         char  * state;
 396
 397         if (phba->link_state == LPFC_HBA_ERROR)
 398                 state = "error";
 399         else if (phba->link_state == LPFC_WARM_START)
 400                 state = "warm start";
 401         else if (phba->link_state == LPFC_INIT_START)
 402                 state = "offline";
 403         else
 404                 state = "online";
 405
 406         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 407 }
 408
 409 static ssize_t
 410 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 411 {
 412         struct Scsi_Host  *shost = class_to_shost(cdev);
 413         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 414         struct lpfc_hba   *phba = vport->phba;
 415         struct completion online_compl;
 416         int status=0;
 417
 418         init_completion(&online_compl);
 419
 420         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 421                 lpfc_workq_post_event(phba, &status, &online_compl,
 422                                       LPFC_EVT_ONLINE);
 423                 wait_for_completion(&online_compl);
 424         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 425                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 426         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 427                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 428         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 429                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 430         else
 431                 return -EINVAL;
 432
 433         if (!status)
 434                 return strlen(buf);
 435         else
 436                 return -EIO;
 437 }
 438
 439 static int
 440 lpfc_get_hba_info(struct lpfc_hba *phba,
 441                   uint32_t *mxri, uint32_t *axri,
 442                   uint32_t *mrpi, uint32_t *arpi,
 443                   uint32_t *mvpi, uint32_t *avpi)
 444 {
 445         struct lpfc_sli   *psli = &phba->sli;
 446         LPFC_MBOXQ_t *pmboxq;
 447         MAILBOX_t *pmb;
 448         int rc = 0;
 449
 450         /*
 451          * prevent udev from issuing mailbox commands until the port is
 452          * configured.
 453          */
 454         if (phba->link_state < LPFC_LINK_DOWN ||
 455             !phba->mbox_mem_pool ||
 456             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 457                 return 0;
 458
 459         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 460                 return 0;
 461
 462         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 463         if (!pmboxq)
 464                 return 0;
 465         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 466
 467         pmb = &pmboxq->mb;
 468         pmb->mbxCommand = MBX_READ_CONFIG;
 469         pmb->mbxOwner = OWN_HOST;
 470         pmboxq->context1 = NULL;
 471
 472         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 473                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 474                 rc = MBX_NOT_FINISHED;
 475         else
 476                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 477
 478         if (rc != MBX_SUCCESS) {
 479                 if (rc != MBX_TIMEOUT)
 480                         mempool_free(pmboxq, phba->mbox_mem_pool);
 481                 return 0;
 482         }
 483
 484         if (mrpi)
 485                 *mrpi = pmb->un.varRdConfig.max_rpi;
 486         if (arpi)
 487                 *arpi = pmb->un.varRdConfig.avail_rpi;
 488         if (mxri)
 489                 *mxri = pmb->un.varRdConfig.max_xri;
 490         if (axri)
 491                 *axri = pmb->un.varRdConfig.avail_xri;
 492         if (mvpi)
 493                 *mvpi = pmb->un.varRdConfig.max_vpi;
 494         if (avpi)
 495                 *avpi = pmb->un.varRdConfig.avail_vpi;
 496
 497         mempool_free(pmboxq, phba->mbox_mem_pool);
 498         return 1;
 499 }
 500
 501 static ssize_t
 502 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
 503 {
 504         struct Scsi_Host  *shost = class_to_shost(cdev);
 505         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 506         struct lpfc_hba   *phba = vport->phba;
 507         uint32_t cnt;
 508
 509         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 510                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 511         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 512 }
 513
 514 static ssize_t
 515 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
 516 {
 517         struct Scsi_Host  *shost = class_to_shost(cdev);
 518         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 519         struct lpfc_hba   *phba = vport->phba;
 520         uint32_t cnt, acnt;
 521
 522         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 523                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 524         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 525 }
 526
 527 static ssize_t
 528 lpfc_max_xri_show(struct class_device *cdev, char *buf)
 529 {
 530         struct Scsi_Host  *shost = class_to_shost(cdev);
 531         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 532         struct lpfc_hba   *phba = vport->phba;
 533         uint32_t cnt;
 534
 535         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
 536                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 537         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 538 }
 539
 540 static ssize_t
 541 lpfc_used_xri_show(struct class_device *cdev, char *buf)
 542 {
 543         struct Scsi_Host  *shost = class_to_shost(cdev);
 544         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 545         struct lpfc_hba   *phba = vport->phba;
 546         uint32_t cnt, acnt;
 547
 548         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 549                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 550         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 551 }
 552
 553 static ssize_t
 554 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
 555 {
 556         struct Scsi_Host  *shost = class_to_shost(cdev);
 557         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 558         struct lpfc_hba   *phba = vport->phba;
 559         uint32_t cnt;
 560
 561         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 562                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 563         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 564 }
 565
 566 static ssize_t
 567 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
 568 {
 569         struct Scsi_Host  *shost = class_to_shost(cdev);
 570         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 571         struct lpfc_hba   *phba = vport->phba;
 572         uint32_t cnt, acnt;
 573
 574         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 575                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 576         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 577 }
 578
 579 static ssize_t
 580 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
 581 {
 582         struct Scsi_Host  *shost = class_to_shost(cdev);
 583         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 584         struct lpfc_hba   *phba = vport->phba;
 585
 586         if (!(phba->max_vpi))
 587                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 588         if (vport->port_type == LPFC_PHYSICAL_PORT)
 589                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 590         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 591 }
 592
 593 static ssize_t
 594 lpfc_poll_show(struct class_device *cdev, char *buf)
 595 {
 596         struct Scsi_Host  *shost = class_to_shost(cdev);
 597         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 598         struct lpfc_hba   *phba = vport->phba;
 599
 600         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 601 }
 602
 603 static ssize_t
 604 lpfc_poll_store(struct class_device *cdev, const char *buf,
 605                 size_t count)
 606 {
 607         struct Scsi_Host  *shost = class_to_shost(cdev);
 608         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 609         struct lpfc_hba   *phba = vport->phba;
 610         uint32_t creg_val;
 611         uint32_t old_val;
 612         int val=0;
 613
 614         if (!isdigit(buf[0]))
 615                 return -EINVAL;
 616
 617         if (sscanf(buf, "%i", &val) != 1)
 618                 return -EINVAL;
 619
 620         if ((val & 0x3) != val)
 621                 return -EINVAL;
 622
 623         spin_lock_irq(&phba->hbalock);
 624
 625         old_val = phba->cfg_poll;
 626
 627         if (val & ENABLE_FCP_RING_POLLING) {
 628                 if ((val & DISABLE_FCP_RING_INT) &&
 629                     !(old_val & DISABLE_FCP_RING_INT)) {
 630                         creg_val = readl(phba->HCregaddr);
 631                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 632                         writel(creg_val, phba->HCregaddr);
 633                         readl(phba->HCregaddr); /* flush */
 634
 635                         lpfc_poll_start_timer(phba);
 636                 }
 637         } else if (val != 0x0) {
 638                 spin_unlock_irq(&phba->hbalock);
 639                 return -EINVAL;
 640         }
 641
 642         if (!(val & DISABLE_FCP_RING_INT) &&
 643             (old_val & DISABLE_FCP_RING_INT))
 644         {
 645                 spin_unlock_irq(&phba->hbalock);
 646                 del_timer(&phba->fcp_poll_timer);
 647                 spin_lock_irq(&phba->hbalock);
 648                 creg_val = readl(phba->HCregaddr);
 649                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 650                 writel(creg_val, phba->HCregaddr);
 651                 readl(phba->HCregaddr); /* flush */
 652         }
 653
 654         phba->cfg_poll = val;
 655
 656         spin_unlock_irq(&phba->hbalock);
 657
 658         return strlen(buf);
 659 }
 660
 661 #define lpfc_param_show(attr)   \
 662 static ssize_t \
 663 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 664 { \
 665         struct Scsi_Host  *shost = class_to_shost(cdev);\
 666         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 667         struct lpfc_hba   *phba = vport->phba;\
 668         int val = 0;\
 669         val = phba->cfg_##attr;\
 670         return snprintf(buf, PAGE_SIZE, "%d\n",\
 671                         phba->cfg_##attr);\
 672 }
 673
 674 #define lpfc_param_hex_show(attr)       \
 675 static ssize_t \
 676 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 677 { \
 678         struct Scsi_Host  *shost = class_to_shost(cdev);\
 679         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 680         struct lpfc_hba   *phba = vport->phba;\
 681         int val = 0;\
 682         val = phba->cfg_##attr;\
 683         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 684                         phba->cfg_##attr);\
 685 }
 686
 687 #define lpfc_param_init(attr, default, minval, maxval)  \
 688 static int \
 689 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 690 { \
 691         if (val >= minval && val <= maxval) {\
 692                 phba->cfg_##attr = val;\
 693                 return 0;\
 694         }\
 695         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 696                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 697                         "allowed range is ["#minval", "#maxval"]\n", val); \
 698         phba->cfg_##attr = default;\
 699         return -EINVAL;\
 700 }
 701
 702 #define lpfc_param_set(attr, default, minval, maxval)   \
 703 static int \
 704 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 705 { \
 706         if (val >= minval && val <= maxval) {\
 707                 phba->cfg_##attr = val;\
 708                 return 0;\
 709         }\
 710         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 711                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 712                         "allowed range is ["#minval", "#maxval"]\n", val); \
 713         return -EINVAL;\
 714 }
 715
 716 #define lpfc_param_store(attr)  \
 717 static ssize_t \
 718 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 719 { \
 720         struct Scsi_Host  *shost = class_to_shost(cdev);\
 721         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 722         struct lpfc_hba   *phba = vport->phba;\
 723         int val=0;\
 724         if (!isdigit(buf[0]))\
 725                 return -EINVAL;\
 726         if (sscanf(buf, "%i", &val) != 1)\
 727                 return -EINVAL;\
 728         if (lpfc_##attr##_set(phba, val) == 0) \
 729                 return strlen(buf);\
 730         else \
 731                 return -EINVAL;\
 732 }
 733
 734 #define lpfc_vport_param_show(attr)     \
 735 static ssize_t \
 736 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 737 { \
 738         struct Scsi_Host  *shost = class_to_shost(cdev);\
 739         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 740         int val = 0;\
 741         val = vport->cfg_##attr;\
 742         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 743 }
 744
 745 #define lpfc_vport_param_hex_show(attr) \
 746 static ssize_t \
 747 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 748 { \
 749         struct Scsi_Host  *shost = class_to_shost(cdev);\
 750         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 751         int val = 0;\
 752         val = vport->cfg_##attr;\
 753         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 754 }
 755
 756 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
 757 static int \
 758 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
 759 { \
 760         if (val >= minval && val <= maxval) {\
 761                 vport->cfg_##attr = val;\
 762                 return 0;\
 763         }\
 764         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 765                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 766                          "allowed range is ["#minval", "#maxval"]\n", val); \
 767         vport->cfg_##attr = default;\
 768         return -EINVAL;\
 769 }
 770
 771 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 772 static int \
 773 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 774 { \
 775         if (val >= minval && val <= maxval) {\
 776                 vport->cfg_##attr = val;\
 777                 return 0;\
 778         }\
 779         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 780                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 781                          "allowed range is ["#minval", "#maxval"]\n", val); \
 782         return -EINVAL;\
 783 }
 784
 785 #define lpfc_vport_param_store(attr)    \
 786 static ssize_t \
 787 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 788 { \
 789         struct Scsi_Host  *shost = class_to_shost(cdev);\
 790         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 791         int val=0;\
 792         if (!isdigit(buf[0]))\
 793                 return -EINVAL;\
 794         if (sscanf(buf, "%i", &val) != 1)\
 795                 return -EINVAL;\
 796         if (lpfc_##attr##_set(vport, val) == 0) \
 797                 return strlen(buf);\
 798         else \
 799                 return -EINVAL;\
 800 }
 801
 802
 803 #define LPFC_ATTR(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_init(name, defval, minval, maxval)
 808
 809 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 810 static int lpfc_##name = defval;\
 811 module_param(lpfc_##name, int, 0);\
 812 MODULE_PARM_DESC(lpfc_##name, desc);\
 813 lpfc_param_show(name)\
 814 lpfc_param_init(name, defval, minval, maxval)\
 815 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 816
 817 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 818 static int lpfc_##name = defval;\
 819 module_param(lpfc_##name, int, 0);\
 820 MODULE_PARM_DESC(lpfc_##name, desc);\
 821 lpfc_param_show(name)\
 822 lpfc_param_init(name, defval, minval, maxval)\
 823 lpfc_param_set(name, defval, minval, maxval)\
 824 lpfc_param_store(name)\
 825 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 826                          lpfc_##name##_show, lpfc_##name##_store)
 827
 828 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 829 static int lpfc_##name = defval;\
 830 module_param(lpfc_##name, int, 0);\
 831 MODULE_PARM_DESC(lpfc_##name, desc);\
 832 lpfc_param_hex_show(name)\
 833 lpfc_param_init(name, defval, minval, maxval)\
 834 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 835
 836 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 837 static int lpfc_##name = defval;\
 838 module_param(lpfc_##name, int, 0);\
 839 MODULE_PARM_DESC(lpfc_##name, desc);\
 840 lpfc_param_hex_show(name)\
 841 lpfc_param_init(name, defval, minval, maxval)\
 842 lpfc_param_set(name, defval, minval, maxval)\
 843 lpfc_param_store(name)\
 844 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 845                          lpfc_##name##_show, lpfc_##name##_store)
 846
 847 #define LPFC_VPORT_ATTR(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_init(name, defval, minval, maxval)
 852
 853 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 854 static int lpfc_##name = defval;\
 855 module_param(lpfc_##name, int, 0);\
 856 MODULE_PARM_DESC(lpfc_##name, desc);\
 857 lpfc_vport_param_show(name)\
 858 lpfc_vport_param_init(name, defval, minval, maxval)\
 859 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 860
 861 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 862 static int lpfc_##name = defval;\
 863 module_param(lpfc_##name, int, 0);\
 864 MODULE_PARM_DESC(lpfc_##name, desc);\
 865 lpfc_vport_param_show(name)\
 866 lpfc_vport_param_init(name, defval, minval, maxval)\
 867 lpfc_vport_param_set(name, defval, minval, maxval)\
 868 lpfc_vport_param_store(name)\
 869 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 870                          lpfc_##name##_show, lpfc_##name##_store)
 871
 872 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 873 static int lpfc_##name = defval;\
 874 module_param(lpfc_##name, int, 0);\
 875 MODULE_PARM_DESC(lpfc_##name, desc);\
 876 lpfc_vport_param_hex_show(name)\
 877 lpfc_vport_param_init(name, defval, minval, maxval)\
 878 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 879
 880 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 881 static int lpfc_##name = defval;\
 882 module_param(lpfc_##name, int, 0);\
 883 MODULE_PARM_DESC(lpfc_##name, desc);\
 884 lpfc_vport_param_hex_show(name)\
 885 lpfc_vport_param_init(name, defval, minval, maxval)\
 886 lpfc_vport_param_set(name, defval, minval, maxval)\
 887 lpfc_vport_param_store(name)\
 888 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 889                          lpfc_##name##_show, lpfc_##name##_store)
 890
 891 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 892 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 893 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 894 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 895 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 896 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 897 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 898 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 899 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 900 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 901                                         lpfc_option_rom_version_show, NULL);
 902 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 903                                         lpfc_num_discovered_ports_show, NULL);
 904 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 905 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 906                          NULL);
 907 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 908                          lpfc_board_mode_show, lpfc_board_mode_store);
 909 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 910 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 911 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 912 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 913 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 914 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 915 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 916 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 917 static CLASS_DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show,
 918                          NULL);
 919
 920
 921 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 922
 923 static ssize_t
 924 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 925                                 size_t count)
 926 {
 927         struct Scsi_Host  *shost = class_to_shost(cdev);
 928         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 929         struct lpfc_hba   *phba = vport->phba;
 930         unsigned int cnt = count;
 931
 932         /*
 933          * We're doing a simple sanity check for soft_wwpn setting.
 934          * We require that the user write a specific key to enable
 935          * the soft_wwpn attribute to be settable. Once the attribute
 936          * is written, the enable key resets. If further updates are
 937          * desired, the key must be written again to re-enable the
 938          * attribute.
 939          *
 940          * The "key" is not secret - it is a hardcoded string shown
 941          * here. The intent is to protect against the random user or
 942          * application that is just writing attributes.
 943          */
 944
 945         /* count may include a LF at end of string */
 946         if (buf[cnt-1] == '\n')
 947                 cnt--;
 948
 949         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 950             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 951                 return -EINVAL;
 952
 953         phba->soft_wwn_enable = 1;
 954         return count;
 955 }
 956 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 957                                 lpfc_soft_wwn_enable_store);
 958
 959 static ssize_t
 960 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 961 {
 962         struct Scsi_Host  *shost = class_to_shost(cdev);
 963         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 964         struct lpfc_hba   *phba = vport->phba;
 965
 966         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 967                         (unsigned long long)phba->cfg_soft_wwpn);
 968 }
 969
 970
 971 static ssize_t
 972 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 973 {
 974         struct Scsi_Host  *shost = class_to_shost(cdev);
 975         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 976         struct lpfc_hba   *phba = vport->phba;
 977         struct completion online_compl;
 978         int stat1=0, stat2=0;
 979         unsigned int i, j, cnt=count;
 980         u8 wwpn[8];
 981
 982         spin_lock_irq(&phba->hbalock);
 983         if (phba->over_temp_state == HBA_OVER_TEMP) {
 984                 spin_unlock_irq(&phba->hbalock);
 985                 return -EPERM;
 986         }
 987         spin_unlock_irq(&phba->hbalock);
 988         /* count may include a LF at end of string */
 989         if (buf[cnt-1] == '\n')
 990                 cnt--;
 991
 992         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 993             ((cnt == 17) && (*buf++ != 'x')) ||
 994             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 995                 return -EINVAL;
 996
 997         phba->soft_wwn_enable = 0;
 998
 999         memset(wwpn, 0, sizeof(wwpn));
1000
1001         /* Validate and store the new name */
1002         for (i=0, j=0; i < 16; i++) {
1003                 if ((*buf >= 'a') && (*buf <= 'f'))
1004                         j = ((j << 4) | ((*buf++ -'a') + 10));
1005                 else if ((*buf >= 'A') && (*buf <= 'F'))
1006                         j = ((j << 4) | ((*buf++ -'A') + 10));
1007                 else if ((*buf >= '0') && (*buf <= '9'))
1008                         j = ((j << 4) | (*buf++ -'0'));
1009                 else
1010                         return -EINVAL;
1011                 if (i % 2) {
1012                         wwpn[i/2] = j & 0xff;
1013                         j = 0;
1014                 }
1015         }
1016         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1017         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1018         if (phba->cfg_soft_wwnn)
1019                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1020
1021         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1022                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1023
1024         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1025         if (stat1)
1026                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1027                                 "0463 lpfc_soft_wwpn attribute set failed to "
1028                                 "reinit adapter - %d\n", stat1);
1029         init_completion(&online_compl);
1030         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1031         wait_for_completion(&online_compl);
1032         if (stat2)
1033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1034                                 "0464 lpfc_soft_wwpn attribute set failed to "
1035                                 "reinit adapter - %d\n", stat2);
1036         return (stat1 || stat2) ? -EIO : count;
1037 }
1038 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1039                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1040
1041 static ssize_t
1042 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1043 {
1044         struct Scsi_Host *shost = class_to_shost(cdev);
1045         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1046         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1047                         (unsigned long long)phba->cfg_soft_wwnn);
1048 }
1049
1050
1051 static ssize_t
1052 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1053 {
1054         struct Scsi_Host *shost = class_to_shost(cdev);
1055         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1056         unsigned int i, j, cnt=count;
1057         u8 wwnn[8];
1058
1059         /* count may include a LF at end of string */
1060         if (buf[cnt-1] == '\n')
1061                 cnt--;
1062
1063         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1064             ((cnt == 17) && (*buf++ != 'x')) ||
1065             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1066                 return -EINVAL;
1067
1068         /*
1069          * Allow wwnn to be set many times, as long as the enable is set.
1070          * However, once the wwpn is set, everything locks.
1071          */
1072
1073         memset(wwnn, 0, sizeof(wwnn));
1074
1075         /* Validate and store the new name */
1076         for (i=0, j=0; i < 16; i++) {
1077                 if ((*buf >= 'a') && (*buf <= 'f'))
1078                         j = ((j << 4) | ((*buf++ -'a') + 10));
1079                 else if ((*buf >= 'A') && (*buf <= 'F'))
1080                         j = ((j << 4) | ((*buf++ -'A') + 10));
1081                 else if ((*buf >= '0') && (*buf <= '9'))
1082                         j = ((j << 4) | (*buf++ -'0'));
1083                 else
1084                         return -EINVAL;
1085                 if (i % 2) {
1086                         wwnn[i/2] = j & 0xff;
1087                         j = 0;
1088                 }
1089         }
1090         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1091
1092         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1093                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1094                    "setting of the soft_wwpn\n", phba->brd_no);
1095
1096         return count;
1097 }
1098 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1099                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1100
1101
1102 static int lpfc_poll = 0;
1103 module_param(lpfc_poll, int, 0);
1104 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1105                  " 0 - none,"
1106                  " 1 - poll with interrupts enabled"
1107                  " 3 - poll and disable FCP ring interrupts");
1108
1109 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1110                          lpfc_poll_show, lpfc_poll_store);
1111
1112 int  lpfc_sli_mode = 0;
1113 module_param(lpfc_sli_mode, int, 0);
1114 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1115                  " 0 - auto (SLI-3 if supported),"
1116                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1117                  " 3 - select SLI-3");
1118
1119 int lpfc_enable_npiv = 0;
1120 module_param(lpfc_enable_npiv, int, 0);
1121 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1122 lpfc_param_show(enable_npiv);
1123 lpfc_param_init(enable_npiv, 0, 0, 1);
1124 static CLASS_DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO,
1125                          lpfc_enable_npiv_show, NULL);
1126
1127 /*
1128 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1129 # until the timer expires. Value range is [0,255]. Default value is 30.
1130 */
1131 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1132 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1133 module_param(lpfc_nodev_tmo, int, 0);
1134 MODULE_PARM_DESC(lpfc_nodev_tmo,
1135                  "Seconds driver will hold I/O waiting "
1136                  "for a device to come back");
1137 static ssize_t
1138 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1139 {
1140         struct Scsi_Host  *shost = class_to_shost(cdev);
1141         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1142         int val = 0;
1143         val = vport->cfg_devloss_tmo;
1144         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1145 }
1146
1147 static int
1148 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1149 {
1150         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1151                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1152                 if (val != LPFC_DEF_DEVLOSS_TMO)
1153                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1154                                          "0402 Ignoring nodev_tmo module "
1155                                          "parameter because devloss_tmo is "
1156                                          "set.\n");
1157                 return 0;
1158         }
1159
1160         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1161                 vport->cfg_nodev_tmo = val;
1162                 vport->cfg_devloss_tmo = val;
1163                 return 0;
1164         }
1165         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1166                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1167                          " %d, allowed range is [%d, %d]\n",
1168                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1169         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1170         return -EINVAL;
1171 }
1172
1173 static void
1174 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1175 {
1176         struct Scsi_Host  *shost;
1177         struct lpfc_nodelist  *ndlp;
1178
1179         shost = lpfc_shost_from_vport(vport);
1180         spin_lock_irq(shost->host_lock);
1181         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
1182                 if (ndlp->rport)
1183                         ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
1184         spin_unlock_irq(shost->host_lock);
1185 }
1186
1187 static int
1188 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1189 {
1190         if (vport->dev_loss_tmo_changed ||
1191             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1192                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1193                                  "0401 Ignoring change to nodev_tmo "
1194                                  "because devloss_tmo is set.\n");
1195                 return 0;
1196         }
1197         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1198                 vport->cfg_nodev_tmo = val;
1199                 vport->cfg_devloss_tmo = val;
1200                 lpfc_update_rport_devloss_tmo(vport);
1201                 return 0;
1202         }
1203         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1204                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1205                          "%d, allowed range is [%d, %d]\n",
1206                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1207         return -EINVAL;
1208 }
1209
1210 lpfc_vport_param_store(nodev_tmo)
1211
1212 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1213                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1214
1215 /*
1216 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1217 # disappear until the timer expires. Value range is [0,255]. Default
1218 # value is 30.
1219 */
1220 module_param(lpfc_devloss_tmo, int, 0);
1221 MODULE_PARM_DESC(lpfc_devloss_tmo,
1222                  "Seconds driver will hold I/O waiting "
1223                  "for a device to come back");
1224 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1225                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1226 lpfc_vport_param_show(devloss_tmo)
1227 static int
1228 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1229 {
1230         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1231                 vport->cfg_nodev_tmo = val;
1232                 vport->cfg_devloss_tmo = val;
1233                 vport->dev_loss_tmo_changed = 1;
1234                 lpfc_update_rport_devloss_tmo(vport);
1235                 return 0;
1236         }
1237
1238         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1239                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1240                          " %d, allowed range is [%d, %d]\n",
1241                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1242         return -EINVAL;
1243 }
1244
1245 lpfc_vport_param_store(devloss_tmo)
1246 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1247         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1248
1249 /*
1250 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1251 # deluged with LOTS of information.
1252 # You can set a bit mask to record specific types of verbose messages:
1253 #
1254 # LOG_ELS                       0x1        ELS events
1255 # LOG_DISCOVERY                 0x2        Link discovery events
1256 # LOG_MBOX                      0x4        Mailbox events
1257 # LOG_INIT                      0x8        Initialization events
1258 # LOG_LINK_EVENT                0x10       Link events
1259 # LOG_FCP                       0x40       FCP traffic history
1260 # LOG_NODE                      0x80       Node table events
1261 # LOG_MISC                      0x400      Miscellaneous events
1262 # LOG_SLI                       0x800      SLI events
1263 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1264 # LOG_LIBDFC                    0x2000     LIBDFC events
1265 # LOG_ALL_MSG                   0xffff     LOG all messages
1266 */
1267 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1268                        "Verbose logging bit-mask");
1269
1270 /*
1271 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
1272 # objects that have been registered with the nameserver after login.
1273 */
1274 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
1275                   "Deregister nameserver objects before LOGO");
1276
1277 /*
1278 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1279 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1280 */
1281 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1282                   "Max number of FCP commands we can queue to a specific LUN");
1283
1284 /*
1285 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1286 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1287 # value is greater than the maximum number of exchanges supported by the HBA,
1288 # then maximum number of exchanges supported by the HBA is used to determine
1289 # the hba_queue_depth.
1290 */
1291 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1292             "Max number of FCP commands we can queue to a lpfc HBA");
1293
1294 /*
1295 # peer_port_login:  This parameter allows/prevents logins
1296 # between peer ports hosted on the same physical port.
1297 # When this parameter is set 0 peer ports of same physical port
1298 # are not allowed to login to each other.
1299 # When this parameter is set 1 peer ports of same physical port
1300 # are allowed to login to each other.
1301 # Default value of this parameter is 0.
1302 */
1303 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1304                   "Allow peer ports on the same physical port to login to each "
1305                   "other.");
1306
1307 /*
1308 # restrict_login:  This parameter allows/prevents logins
1309 # between Virtual Ports and remote initiators.
1310 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1311 # other initiators and will attempt to PLOGI all remote ports.
1312 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1313 # remote ports and will not attempt to PLOGI to other initiators.
1314 # This parameter does not restrict to the physical port.
1315 # This parameter does not restrict logins to Fabric resident remote ports.
1316 # Default value of this parameter is 1.
1317 */
1318 static int lpfc_restrict_login = 1;
1319 module_param(lpfc_restrict_login, int, 0);
1320 MODULE_PARM_DESC(lpfc_restrict_login,
1321                  "Restrict virtual ports login to remote initiators.");
1322 lpfc_vport_param_show(restrict_login);
1323
1324 static int
1325 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1326 {
1327         if (val < 0 || val > 1) {
1328                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1329                                  "0449 lpfc_restrict_login attribute cannot "
1330                                  "be set to %d, allowed range is [0, 1]\n",
1331                                  val);
1332                 vport->cfg_restrict_login = 1;
1333                 return -EINVAL;
1334         }
1335         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1336                 vport->cfg_restrict_login = 0;
1337                 return 0;
1338         }
1339         vport->cfg_restrict_login = val;
1340         return 0;
1341 }
1342
1343 static int
1344 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1345 {
1346         if (val < 0 || val > 1) {
1347                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1348                                  "0450 lpfc_restrict_login attribute cannot "
1349                                  "be set to %d, allowed range is [0, 1]\n",
1350                                  val);
1351                 vport->cfg_restrict_login = 1;
1352                 return -EINVAL;
1353         }
1354         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1355                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1356                                  "0468 lpfc_restrict_login must be 0 for "
1357                                  "Physical ports.\n");
1358                 vport->cfg_restrict_login = 0;
1359                 return 0;
1360         }
1361         vport->cfg_restrict_login = val;
1362         return 0;
1363 }
1364 lpfc_vport_param_store(restrict_login);
1365 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1366                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1367
1368 /*
1369 # Some disk devices have a "select ID" or "select Target" capability.
1370 # From a protocol standpoint "select ID" usually means select the
1371 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1372 # annex" which contains a table that maps a "select ID" (a number
1373 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1374 # older drivers, the lpfc driver scans this table from low ALPA to high
1375 # ALPA.
1376 #
1377 # Turning on the scan-down variable (on  = 1, off = 0) will
1378 # cause the lpfc driver to use an inverted table, effectively
1379 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1380 #
1381 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1382 # and will not work across a fabric. Also this parameter will take
1383 # effect only in the case when ALPA map is not available.)
1384 */
1385 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1386                   "Start scanning for devices from highest ALPA to lowest");
1387
1388 /*
1389 # lpfc_topology:  link topology for init link
1390 #            0x0  = attempt loop mode then point-to-point
1391 #            0x01 = internal loopback mode
1392 #            0x02 = attempt point-to-point mode only
1393 #            0x04 = attempt loop mode only
1394 #            0x06 = attempt point-to-point mode then loop
1395 # Set point-to-point mode if you want to run as an N_Port.
1396 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1397 # Default value is 0.
1398 */
1399 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1400
1401 /*
1402 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1403 # connection.
1404 #       0  = auto select (default)
1405 #       1  = 1 Gigabaud
1406 #       2  = 2 Gigabaud
1407 #       4  = 4 Gigabaud
1408 #       8  = 8 Gigabaud
1409 # Value range is [0,8]. Default value is 0.
1410 */
1411 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1412
1413 /*
1414 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1415 # Value range is [2,3]. Default value is 3.
1416 */
1417 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1418                   "Select Fibre Channel class of service for FCP sequences");
1419
1420 /*
1421 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1422 # is [0,1]. Default value is 0.
1423 */
1424 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1425                    "Use ADISC on rediscovery to authenticate FCP devices");
1426
1427 /*
1428 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1429 # range is [0,1]. Default value is 0.
1430 */
1431 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1432
1433 /*
1434 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1435 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1436 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1437 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1438 # cr_delay is set to 0.
1439 */
1440 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1441                 "interrupt response is generated");
1442
1443 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1444                 "interrupt response is generated");
1445
1446 /*
1447 # lpfc_multi_ring_support:  Determines how many rings to spread available
1448 # cmd/rsp IOCB entries across.
1449 # Value range is [1,2]. Default value is 1.
1450 */
1451 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1452                 "SLI rings to spread IOCB entries across");
1453
1454 /*
1455 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1456 # identifies what rctl value to configure the additional ring for.
1457 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1458 */
1459 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1460              255, "Identifies RCTL for additional ring configuration");
1461
1462 /*
1463 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1464 # identifies what type value to configure the additional ring for.
1465 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1466 */
1467 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1468              255, "Identifies TYPE for additional ring configuration");
1469
1470 /*
1471 # lpfc_fdmi_on: controls FDMI support.
1472 #       0 = no FDMI support
1473 #       1 = support FDMI without attribute of hostname
1474 #       2 = support FDMI with attribute of hostname
1475 # Value range [0,2]. Default value is 0.
1476 */
1477 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1478
1479 /*
1480 # Specifies the maximum number of ELS cmds we can have outstanding (for
1481 # discovery). Value range is [1,64]. Default value = 32.
1482 */
1483 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1484                  "during discovery");
1485
1486 /*
1487 # lpfc_max_luns: maximum allowed LUN.
1488 # Value range is [0,65535]. Default value is 255.
1489 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1490 */
1491 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1492
1493 /*
1494 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1495 # Value range is [1,255], default value is 10.
1496 */
1497 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1498              "Milliseconds driver will wait between polling FCP ring");
1499
1500 /*
1501 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1502 #               support this feature
1503 #       0  = MSI disabled (default)
1504 #       1  = MSI enabled
1505 # Value range is [0,1]. Default value is 0.
1506 */
1507 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1508
1509
1510
1511 struct class_device_attribute *lpfc_hba_attrs[] = {
1512         &class_device_attr_info,
1513         &class_device_attr_serialnum,
1514         &class_device_attr_modeldesc,
1515         &class_device_attr_modelname,
1516         &class_device_attr_programtype,
1517         &class_device_attr_portnum,
1518         &class_device_attr_fwrev,
1519         &class_device_attr_hdw,
1520         &class_device_attr_option_rom_version,
1521         &class_device_attr_state,
1522         &class_device_attr_num_discovered_ports,
1523         &class_device_attr_lpfc_drvr_version,
1524         &class_device_attr_lpfc_temp_sensor,
1525         &class_device_attr_lpfc_log_verbose,
1526         &class_device_attr_lpfc_lun_queue_depth,
1527         &class_device_attr_lpfc_hba_queue_depth,
1528         &class_device_attr_lpfc_peer_port_login,
1529         &class_device_attr_lpfc_nodev_tmo,
1530         &class_device_attr_lpfc_devloss_tmo,
1531         &class_device_attr_lpfc_fcp_class,
1532         &class_device_attr_lpfc_use_adisc,
1533         &class_device_attr_lpfc_ack0,
1534         &class_device_attr_lpfc_topology,
1535         &class_device_attr_lpfc_scan_down,
1536         &class_device_attr_lpfc_link_speed,
1537         &class_device_attr_lpfc_cr_delay,
1538         &class_device_attr_lpfc_cr_count,
1539         &class_device_attr_lpfc_multi_ring_support,
1540         &class_device_attr_lpfc_multi_ring_rctl,
1541         &class_device_attr_lpfc_multi_ring_type,
1542         &class_device_attr_lpfc_fdmi_on,
1543         &class_device_attr_lpfc_max_luns,
1544         &class_device_attr_lpfc_enable_npiv,
1545         &class_device_attr_nport_evt_cnt,
1546         &class_device_attr_board_mode,
1547         &class_device_attr_max_vpi,
1548         &class_device_attr_used_vpi,
1549         &class_device_attr_max_rpi,
1550         &class_device_attr_used_rpi,
1551         &class_device_attr_max_xri,
1552         &class_device_attr_used_xri,
1553         &class_device_attr_npiv_info,
1554         &class_device_attr_issue_reset,
1555         &class_device_attr_lpfc_poll,
1556         &class_device_attr_lpfc_poll_tmo,
1557         &class_device_attr_lpfc_use_msi,
1558         &class_device_attr_lpfc_soft_wwnn,
1559         &class_device_attr_lpfc_soft_wwpn,
1560         &class_device_attr_lpfc_soft_wwn_enable,
1561         NULL,
1562 };
1563
1564 struct class_device_attribute *lpfc_vport_attrs[] = {
1565         &class_device_attr_info,
1566         &class_device_attr_state,
1567         &class_device_attr_num_discovered_ports,
1568         &class_device_attr_lpfc_drvr_version,
1569
1570         &class_device_attr_lpfc_log_verbose,
1571         &class_device_attr_lpfc_lun_queue_depth,
1572         &class_device_attr_lpfc_nodev_tmo,
1573         &class_device_attr_lpfc_devloss_tmo,
1574         &class_device_attr_lpfc_hba_queue_depth,
1575         &class_device_attr_lpfc_peer_port_login,
1576         &class_device_attr_lpfc_restrict_login,
1577         &class_device_attr_lpfc_fcp_class,
1578         &class_device_attr_lpfc_use_adisc,
1579         &class_device_attr_lpfc_fdmi_on,
1580         &class_device_attr_lpfc_max_luns,
1581         &class_device_attr_nport_evt_cnt,
1582         &class_device_attr_npiv_info,
1583         &class_device_attr_lpfc_enable_da_id,
1584         NULL,
1585 };
1586
1587 static ssize_t
1588 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1589                    char *buf, loff_t off, size_t count)
1590 {
1591         size_t buf_off;
1592         struct class_device *cdev = container_of(kobj, struct class_device,
1593                                                  kobj);
1594         struct Scsi_Host  *shost = class_to_shost(cdev);
1595         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1596         struct lpfc_hba   *phba = vport->phba;
1597
1598         if ((off + count) > FF_REG_AREA_SIZE)
1599                 return -ERANGE;
1600
1601         if (count == 0) return 0;
1602
1603         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1604                 return -EINVAL;
1605
1606         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1607                 return -EPERM;
1608         }
1609
1610         spin_lock_irq(&phba->hbalock);
1611         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1612                 writel(*((uint32_t *)(buf + buf_off)),
1613                        phba->ctrl_regs_memmap_p + off + buf_off);
1614
1615         spin_unlock_irq(&phba->hbalock);
1616
1617         return count;
1618 }
1619
1620 static ssize_t
1621 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1622                   char *buf, loff_t off, size_t count)
1623 {
1624         size_t buf_off;
1625         uint32_t * tmp_ptr;
1626         struct class_device *cdev = container_of(kobj, struct class_device,
1627                                                  kobj);
1628         struct Scsi_Host  *shost = class_to_shost(cdev);
1629         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1630         struct lpfc_hba   *phba = vport->phba;
1631
1632         if (off > FF_REG_AREA_SIZE)
1633                 return -ERANGE;
1634
1635         if ((off + count) > FF_REG_AREA_SIZE)
1636                 count = FF_REG_AREA_SIZE - off;
1637
1638         if (count == 0) return 0;
1639
1640         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1641                 return -EINVAL;
1642
1643         spin_lock_irq(&phba->hbalock);
1644
1645         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1646                 tmp_ptr = (uint32_t *)(buf + buf_off);
1647                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1648         }
1649
1650         spin_unlock_irq(&phba->hbalock);
1651
1652         return count;
1653 }
1654
1655 static struct bin_attribute sysfs_ctlreg_attr = {
1656         .attr = {
1657                 .name = "ctlreg",
1658                 .mode = S_IRUSR | S_IWUSR,
1659         },
1660         .size = 256,
1661         .read = sysfs_ctlreg_read,
1662         .write = sysfs_ctlreg_write,
1663 };
1664
1665
1666 static void
1667 sysfs_mbox_idle(struct lpfc_hba *phba)
1668 {
1669         phba->sysfs_mbox.state = SMBOX_IDLE;
1670         phba->sysfs_mbox.offset = 0;
1671
1672         if (phba->sysfs_mbox.mbox) {
1673                 mempool_free(phba->sysfs_mbox.mbox,
1674                              phba->mbox_mem_pool);
1675                 phba->sysfs_mbox.mbox = NULL;
1676         }
1677 }
1678
1679 static ssize_t
1680 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1681                  char *buf, loff_t off, size_t count)
1682 {
1683         struct class_device *cdev = container_of(kobj, struct class_device,
1684                                                  kobj);
1685         struct Scsi_Host  *shost = class_to_shost(cdev);
1686         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1687         struct lpfc_hba   *phba = vport->phba;
1688         struct lpfcMboxq  *mbox = NULL;
1689
1690         if ((count + off) > MAILBOX_CMD_SIZE)
1691                 return -ERANGE;
1692
1693         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1694                 return -EINVAL;
1695
1696         if (count == 0)
1697                 return 0;
1698
1699         if (off == 0) {
1700                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1701                 if (!mbox)
1702                         return -ENOMEM;
1703                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1704         }
1705
1706         spin_lock_irq(&phba->hbalock);
1707
1708         if (off == 0) {
1709                 if (phba->sysfs_mbox.mbox)
1710                         mempool_free(mbox, phba->mbox_mem_pool);
1711                 else
1712                         phba->sysfs_mbox.mbox = mbox;
1713                 phba->sysfs_mbox.state = SMBOX_WRITING;
1714         } else {
1715                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1716                     phba->sysfs_mbox.offset != off           ||
1717                     phba->sysfs_mbox.mbox   == NULL) {
1718                         sysfs_mbox_idle(phba);
1719                         spin_unlock_irq(&phba->hbalock);
1720                         return -EAGAIN;
1721                 }
1722         }
1723
1724         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1725                buf, count);
1726
1727         phba->sysfs_mbox.offset = off + count;
1728
1729         spin_unlock_irq(&phba->hbalock);
1730
1731         return count;
1732 }
1733
1734 static ssize_t
1735 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1736                 char *buf, loff_t off, size_t count)
1737 {
1738         struct class_device *cdev = container_of(kobj, struct class_device,
1739                                                  kobj);
1740         struct Scsi_Host  *shost = class_to_shost(cdev);
1741         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1742         struct lpfc_hba   *phba = vport->phba;
1743         int rc;
1744
1745         if (off > MAILBOX_CMD_SIZE)
1746                 return -ERANGE;
1747
1748         if ((count + off) > MAILBOX_CMD_SIZE)
1749                 count = MAILBOX_CMD_SIZE - off;
1750
1751         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1752                 return -EINVAL;
1753
1754         if (off && count == 0)
1755                 return 0;
1756
1757         spin_lock_irq(&phba->hbalock);
1758
1759         if (phba->over_temp_state == HBA_OVER_TEMP) {
1760                 sysfs_mbox_idle(phba);
1761                 spin_unlock_irq(&phba->hbalock);
1762                 return  -EPERM;
1763         }
1764
1765         if (off == 0 &&
1766             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1767             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1768
1769                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1770                         /* Offline only */
1771                 case MBX_INIT_LINK:
1772                 case MBX_DOWN_LINK:
1773                 case MBX_CONFIG_LINK:
1774                 case MBX_CONFIG_RING:
1775                 case MBX_RESET_RING:
1776                 case MBX_UNREG_LOGIN:
1777                 case MBX_CLEAR_LA:
1778                 case MBX_DUMP_CONTEXT:
1779                 case MBX_RUN_DIAGS:
1780                 case MBX_RESTART:
1781                 case MBX_FLASH_WR_ULA:
1782                 case MBX_SET_MASK:
1783                 case MBX_SET_SLIM:
1784                 case MBX_SET_DEBUG:
1785                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1786                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1787                                        "is illegal in on-line state\n",
1788                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1789                                 sysfs_mbox_idle(phba);
1790                                 spin_unlock_irq(&phba->hbalock);
1791                                 return -EPERM;
1792                         }
1793                 case MBX_WRITE_NV:
1794                 case MBX_WRITE_VPARMS:
1795                 case MBX_LOAD_SM:
1796                 case MBX_READ_NV:
1797                 case MBX_READ_CONFIG:
1798                 case MBX_READ_RCONFIG:
1799                 case MBX_READ_STATUS:
1800                 case MBX_READ_XRI:
1801                 case MBX_READ_REV:
1802                 case MBX_READ_LNK_STAT:
1803                 case MBX_DUMP_MEMORY:
1804                 case MBX_DOWN_LOAD:
1805                 case MBX_UPDATE_CFG:
1806                 case MBX_KILL_BOARD:
1807                 case MBX_LOAD_AREA:
1808                 case MBX_LOAD_EXP_ROM:
1809                 case MBX_BEACON:
1810                 case MBX_DEL_LD_ENTRY:
1811                         break;
1812                 case MBX_READ_SPARM64:
1813                 case MBX_READ_LA:
1814                 case MBX_READ_LA64:
1815                 case MBX_REG_LOGIN:
1816                 case MBX_REG_LOGIN64:
1817                 case MBX_CONFIG_PORT:
1818                 case MBX_RUN_BIU_DIAG:
1819                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1820                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1821                         sysfs_mbox_idle(phba);
1822                         spin_unlock_irq(&phba->hbalock);
1823                         return -EPERM;
1824                 default:
1825                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1826                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1827                         sysfs_mbox_idle(phba);
1828                         spin_unlock_irq(&phba->hbalock);
1829                         return -EPERM;
1830                 }
1831
1832                 phba->sysfs_mbox.mbox->vport = vport;
1833
1834                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1835                         sysfs_mbox_idle(phba);
1836                         spin_unlock_irq(&phba->hbalock);
1837                         return  -EAGAIN;
1838                 }
1839
1840                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1841                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1842
1843                         spin_unlock_irq(&phba->hbalock);
1844                         rc = lpfc_sli_issue_mbox (phba,
1845                                                   phba->sysfs_mbox.mbox,
1846                                                   MBX_POLL);
1847                         spin_lock_irq(&phba->hbalock);
1848
1849                 } else {
1850                         spin_unlock_irq(&phba->hbalock);
1851                         rc = lpfc_sli_issue_mbox_wait (phba,
1852                                                        phba->sysfs_mbox.mbox,
1853                                 lpfc_mbox_tmo_val(phba,
1854                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1855                         spin_lock_irq(&phba->hbalock);
1856                 }
1857
1858                 if (rc != MBX_SUCCESS) {
1859                         if (rc == MBX_TIMEOUT) {
1860                                 phba->sysfs_mbox.mbox = NULL;
1861                         }
1862                         sysfs_mbox_idle(phba);
1863                         spin_unlock_irq(&phba->hbalock);
1864                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1865                 }
1866                 phba->sysfs_mbox.state = SMBOX_READING;
1867         }
1868         else if (phba->sysfs_mbox.offset != off ||
1869                  phba->sysfs_mbox.state  != SMBOX_READING) {
1870                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1871                 sysfs_mbox_idle(phba);
1872                 spin_unlock_irq(&phba->hbalock);
1873                 return -EAGAIN;
1874         }
1875
1876         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1877
1878         phba->sysfs_mbox.offset = off + count;
1879
1880         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1881                 sysfs_mbox_idle(phba);
1882
1883         spin_unlock_irq(&phba->hbalock);
1884
1885         return count;
1886 }
1887
1888 static struct bin_attribute sysfs_mbox_attr = {
1889         .attr = {
1890                 .name = "mbox",
1891                 .mode = S_IRUSR | S_IWUSR,
1892         },
1893         .size = MAILBOX_CMD_SIZE,
1894         .read = sysfs_mbox_read,
1895         .write = sysfs_mbox_write,
1896 };
1897
1898 int
1899 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1900 {
1901         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1902         int error;
1903
1904         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1905                                       &sysfs_ctlreg_attr);
1906         if (error)
1907                 goto out;
1908
1909         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1910                                       &sysfs_mbox_attr);
1911         if (error)
1912                 goto out_remove_ctlreg_attr;
1913
1914         return 0;
1915 out_remove_ctlreg_attr:
1916         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1917 out:
1918         return error;
1919 }
1920
1921 void
1922 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1923 {
1924         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1925
1926         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1927         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1928 }
1929
1930
1931 /*
1932  * Dynamic FC Host Attributes Support
1933  */
1934
1935 static void
1936 lpfc_get_host_port_id(struct Scsi_Host *shost)
1937 {
1938         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1939
1940         /* note: fc_myDID already in cpu endianness */
1941         fc_host_port_id(shost) = vport->fc_myDID;
1942 }
1943
1944 static void
1945 lpfc_get_host_port_type(struct Scsi_Host *shost)
1946 {
1947         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1948         struct lpfc_hba   *phba = vport->phba;
1949
1950         spin_lock_irq(shost->host_lock);
1951
1952         if (vport->port_type == LPFC_NPIV_PORT) {
1953                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1954         } else if (lpfc_is_link_up(phba)) {
1955                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1956                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1957                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1958                         else
1959                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1960                 } else {
1961                         if (vport->fc_flag & FC_FABRIC)
1962                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1963                         else
1964                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1965                 }
1966         } else
1967                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1968
1969         spin_unlock_irq(shost->host_lock);
1970 }
1971
1972 static void
1973 lpfc_get_host_port_state(struct Scsi_Host *shost)
1974 {
1975         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1976         struct lpfc_hba   *phba = vport->phba;
1977
1978         spin_lock_irq(shost->host_lock);
1979
1980         if (vport->fc_flag & FC_OFFLINE_MODE)
1981                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1982         else {
1983                 switch (phba->link_state) {
1984                 case LPFC_LINK_UNKNOWN:
1985                 case LPFC_LINK_DOWN:
1986                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1987                         break;
1988                 case LPFC_LINK_UP:
1989                 case LPFC_CLEAR_LA:
1990                 case LPFC_HBA_READY:
1991                         /* Links up, beyond this port_type reports state */
1992                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1993                         break;
1994                 case LPFC_HBA_ERROR:
1995                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1996                         break;
1997                 default:
1998                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1999                         break;
2000                 }
2001         }
2002
2003         spin_unlock_irq(shost->host_lock);
2004 }
2005
2006 static void
2007 lpfc_get_host_speed(struct Scsi_Host *shost)
2008 {
2009         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2010         struct lpfc_hba   *phba = vport->phba;
2011
2012         spin_lock_irq(shost->host_lock);
2013
2014         if (lpfc_is_link_up(phba)) {
2015                 switch(phba->fc_linkspeed) {
2016                         case LA_1GHZ_LINK:
2017                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
2018                         break;
2019                         case LA_2GHZ_LINK:
2020                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
2021                         break;
2022                         case LA_4GHZ_LINK:
2023                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
2024                         break;
2025                         case LA_8GHZ_LINK:
2026                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2027                         break;
2028                         default:
2029                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2030                         break;
2031                 }
2032         }
2033
2034         spin_unlock_irq(shost->host_lock);
2035 }
2036
2037 static void
2038 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2039 {
2040         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2041         struct lpfc_hba   *phba = vport->phba;
2042         u64 node_name;
2043
2044         spin_lock_irq(shost->host_lock);
2045
2046         if ((vport->fc_flag & FC_FABRIC) ||
2047             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2048              (vport->fc_flag & FC_PUBLIC_LOOP)))
2049                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2050         else
2051                 /* fabric is local port if there is no F/FL_Port */
2052                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2053
2054         spin_unlock_irq(shost->host_lock);
2055
2056         fc_host_fabric_name(shost) = node_name;
2057 }
2058
2059 static struct fc_host_statistics *
2060 lpfc_get_stats(struct Scsi_Host *shost)
2061 {
2062         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2063         struct lpfc_hba   *phba = vport->phba;
2064         struct lpfc_sli   *psli = &phba->sli;
2065         struct fc_host_statistics *hs = &phba->link_stats;
2066         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2067         LPFC_MBOXQ_t *pmboxq;
2068         MAILBOX_t *pmb;
2069         unsigned long seconds;
2070         int rc = 0;
2071
2072         /*
2073          * prevent udev from issuing mailbox commands until the port is
2074          * configured.
2075          */
2076         if (phba->link_state < LPFC_LINK_DOWN ||
2077             !phba->mbox_mem_pool ||
2078             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2079                 return NULL;
2080
2081         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2082                 return NULL;
2083
2084         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2085         if (!pmboxq)
2086                 return NULL;
2087         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2088
2089         pmb = &pmboxq->mb;
2090         pmb->mbxCommand = MBX_READ_STATUS;
2091         pmb->mbxOwner = OWN_HOST;
2092         pmboxq->context1 = NULL;
2093         pmboxq->vport = vport;
2094
2095         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2096                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2097                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2098         else
2099                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2100
2101         if (rc != MBX_SUCCESS) {
2102                 if (rc != MBX_TIMEOUT)
2103                         mempool_free(pmboxq, phba->mbox_mem_pool);
2104                 return NULL;
2105         }
2106
2107         memset(hs, 0, sizeof (struct fc_host_statistics));
2108
2109         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2110         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2111         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2112         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2113
2114         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2115         pmb->mbxCommand = MBX_READ_LNK_STAT;
2116         pmb->mbxOwner = OWN_HOST;
2117         pmboxq->context1 = NULL;
2118         pmboxq->vport = vport;
2119
2120         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2121             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2122                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2123         else
2124                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2125
2126         if (rc != MBX_SUCCESS) {
2127                 if (rc != MBX_TIMEOUT)
2128                         mempool_free(pmboxq, phba->mbox_mem_pool);
2129                 return NULL;
2130         }
2131
2132         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2133         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2134         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2135         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2136         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2137         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2138         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2139
2140         hs->link_failure_count -= lso->link_failure_count;
2141         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2142         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2143         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2144         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2145         hs->invalid_crc_count -= lso->invalid_crc_count;
2146         hs->error_frames -= lso->error_frames;
2147
2148         if (phba->fc_topology == TOPOLOGY_LOOP) {
2149                 hs->lip_count = (phba->fc_eventTag >> 1);
2150                 hs->lip_count -= lso->link_events;
2151                 hs->nos_count = -1;
2152         } else {
2153                 hs->lip_count = -1;
2154                 hs->nos_count = (phba->fc_eventTag >> 1);
2155                 hs->nos_count -= lso->link_events;
2156         }
2157
2158         hs->dumped_frames = -1;
2159
2160         seconds = get_seconds();
2161         if (seconds < psli->stats_start)
2162                 hs->seconds_since_last_reset = seconds +
2163                                 ((unsigned long)-1 - psli->stats_start);
2164         else
2165                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2166
2167         mempool_free(pmboxq, phba->mbox_mem_pool);
2168
2169         return hs;
2170 }
2171
2172 static void
2173 lpfc_reset_stats(struct Scsi_Host *shost)
2174 {
2175         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2176         struct lpfc_hba   *phba = vport->phba;
2177         struct lpfc_sli   *psli = &phba->sli;
2178         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2179         LPFC_MBOXQ_t *pmboxq;
2180         MAILBOX_t *pmb;
2181         int rc = 0;
2182
2183         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2184                 return;
2185
2186         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2187         if (!pmboxq)
2188                 return;
2189         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2190
2191         pmb = &pmboxq->mb;
2192         pmb->mbxCommand = MBX_READ_STATUS;
2193         pmb->mbxOwner = OWN_HOST;
2194         pmb->un.varWords[0] = 0x1; /* reset request */
2195         pmboxq->context1 = NULL;
2196         pmboxq->vport = vport;
2197
2198         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2199                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2200                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2201         else
2202                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2203
2204         if (rc != MBX_SUCCESS) {
2205                 if (rc != MBX_TIMEOUT)
2206                         mempool_free(pmboxq, phba->mbox_mem_pool);
2207                 return;
2208         }
2209
2210         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2211         pmb->mbxCommand = MBX_READ_LNK_STAT;
2212         pmb->mbxOwner = OWN_HOST;
2213         pmboxq->context1 = NULL;
2214         pmboxq->vport = vport;
2215
2216         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2217             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2218                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2219         else
2220                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2221
2222         if (rc != MBX_SUCCESS) {
2223                 if (rc != MBX_TIMEOUT)
2224                         mempool_free( pmboxq, phba->mbox_mem_pool);
2225                 return;
2226         }
2227
2228         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2229         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2230         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2231         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2232         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2233         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2234         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2235         lso->link_events = (phba->fc_eventTag >> 1);
2236
2237         psli->stats_start = get_seconds();
2238
2239         mempool_free(pmboxq, phba->mbox_mem_pool);
2240
2241         return;
2242 }
2243
2244 /*
2245  * The LPFC driver treats linkdown handling as target loss events so there
2246  * are no sysfs handlers for link_down_tmo.
2247  */
2248
2249 static struct lpfc_nodelist *
2250 lpfc_get_node_by_target(struct scsi_target *starget)
2251 {
2252         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2253         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2254         struct lpfc_nodelist *ndlp;
2255
2256         spin_lock_irq(shost->host_lock);
2257         /* Search for this, mapped, target ID */
2258         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2259                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2260                     starget->id == ndlp->nlp_sid) {
2261                         spin_unlock_irq(shost->host_lock);
2262                         return ndlp;
2263                 }
2264         }
2265         spin_unlock_irq(shost->host_lock);
2266         return NULL;
2267 }
2268
2269 static void
2270 lpfc_get_starget_port_id(struct scsi_target *starget)
2271 {
2272         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2273
2274         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2275 }
2276
2277 static void
2278 lpfc_get_starget_node_name(struct scsi_target *starget)
2279 {
2280         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2281
2282         fc_starget_node_name(starget) =
2283                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2284 }
2285
2286 static void
2287 lpfc_get_starget_port_name(struct scsi_target *starget)
2288 {
2289         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2290
2291         fc_starget_port_name(starget) =
2292                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2293 }
2294
2295 static void
2296 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2297 {
2298         if (timeout)
2299                 rport->dev_loss_tmo = timeout;
2300         else
2301                 rport->dev_loss_tmo = 1;
2302 }
2303
2304
2305 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2306 static ssize_t                                                          \
2307 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2308 {                                                                       \
2309         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2310         struct lpfc_rport_data *rdata = rport->hostdata;                \
2311         return snprintf(buf, sz, format_string,                         \
2312                 (rdata->target) ? cast rdata->target->field : 0);       \
2313 }
2314
2315 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2316         lpfc_rport_show_function(field, format_string, sz, )            \
2317 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2318
2319
2320 struct fc_function_template lpfc_transport_functions = {
2321         /* fixed attributes the driver supports */
2322         .show_host_node_name = 1,
2323         .show_host_port_name = 1,
2324         .show_host_supported_classes = 1,
2325         .show_host_supported_fc4s = 1,
2326         .show_host_supported_speeds = 1,
2327         .show_host_maxframe_size = 1,
2328
2329         /* dynamic attributes the driver supports */
2330         .get_host_port_id = lpfc_get_host_port_id,
2331         .show_host_port_id = 1,
2332
2333         .get_host_port_type = lpfc_get_host_port_type,
2334         .show_host_port_type = 1,
2335
2336         .get_host_port_state = lpfc_get_host_port_state,
2337         .show_host_port_state = 1,
2338
2339         /* active_fc4s is shown but doesn't change (thus no get function) */
2340         .show_host_active_fc4s = 1,
2341
2342         .get_host_speed = lpfc_get_host_speed,
2343         .show_host_speed = 1,
2344
2345         .get_host_fabric_name = lpfc_get_host_fabric_name,
2346         .show_host_fabric_name = 1,
2347
2348         /*
2349          * The LPFC driver treats linkdown handling as target loss events
2350          * so there are no sysfs handlers for link_down_tmo.
2351          */
2352
2353         .get_fc_host_stats = lpfc_get_stats,
2354         .reset_fc_host_stats = lpfc_reset_stats,
2355
2356         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2357         .show_rport_maxframe_size = 1,
2358         .show_rport_supported_classes = 1,
2359
2360         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2361         .show_rport_dev_loss_tmo = 1,
2362
2363         .get_starget_port_id  = lpfc_get_starget_port_id,
2364         .show_starget_port_id = 1,
2365
2366         .get_starget_node_name = lpfc_get_starget_node_name,
2367         .show_starget_node_name = 1,
2368
2369         .get_starget_port_name = lpfc_get_starget_port_name,
2370         .show_starget_port_name = 1,
2371
2372         .issue_fc_host_lip = lpfc_issue_lip,
2373         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2374         .terminate_rport_io = lpfc_terminate_rport_io,
2375
2376         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2377 };
2378
2379 struct fc_function_template lpfc_vport_transport_functions = {
2380         /* fixed attributes the driver supports */
2381         .show_host_node_name = 1,
2382         .show_host_port_name = 1,
2383         .show_host_supported_classes = 1,
2384         .show_host_supported_fc4s = 1,
2385         .show_host_supported_speeds = 1,
2386         .show_host_maxframe_size = 1,
2387
2388         /* dynamic attributes the driver supports */
2389         .get_host_port_id = lpfc_get_host_port_id,
2390         .show_host_port_id = 1,
2391
2392         .get_host_port_type = lpfc_get_host_port_type,
2393         .show_host_port_type = 1,
2394
2395         .get_host_port_state = lpfc_get_host_port_state,
2396         .show_host_port_state = 1,
2397
2398         /* active_fc4s is shown but doesn't change (thus no get function) */
2399         .show_host_active_fc4s = 1,
2400
2401         .get_host_speed = lpfc_get_host_speed,
2402         .show_host_speed = 1,
2403
2404         .get_host_fabric_name = lpfc_get_host_fabric_name,
2405         .show_host_fabric_name = 1,
2406
2407         /*
2408          * The LPFC driver treats linkdown handling as target loss events
2409          * so there are no sysfs handlers for link_down_tmo.
2410          */
2411
2412         .get_fc_host_stats = lpfc_get_stats,
2413         .reset_fc_host_stats = lpfc_reset_stats,
2414
2415         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2416         .show_rport_maxframe_size = 1,
2417         .show_rport_supported_classes = 1,
2418
2419         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2420         .show_rport_dev_loss_tmo = 1,
2421
2422         .get_starget_port_id  = lpfc_get_starget_port_id,
2423         .show_starget_port_id = 1,
2424
2425         .get_starget_node_name = lpfc_get_starget_node_name,
2426         .show_starget_node_name = 1,
2427
2428         .get_starget_port_name = lpfc_get_starget_port_name,
2429         .show_starget_port_name = 1,
2430
2431         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2432         .terminate_rport_io = lpfc_terminate_rport_io,
2433
2434         .vport_disable = lpfc_vport_disable,
2435 };
2436
2437 void
2438 lpfc_get_cfgparam(struct lpfc_hba *phba)
2439 {
2440         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2441         lpfc_cr_count_init(phba, lpfc_cr_count);
2442         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2443         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2444         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2445         lpfc_ack0_init(phba, lpfc_ack0);
2446         lpfc_topology_init(phba, lpfc_topology);
2447         lpfc_link_speed_init(phba, lpfc_link_speed);
2448         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2449         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2450         lpfc_use_msi_init(phba, lpfc_use_msi);
2451         phba->cfg_poll = lpfc_poll;
2452         phba->cfg_soft_wwnn = 0L;
2453         phba->cfg_soft_wwpn = 0L;
2454         /*
2455          * The total number of segments is the configuration value plus 2
2456          * since the IOCB need a command and response bde.
2457          */
2458         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2459         /*
2460          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2461          * used to create the sg_dma_buf_pool must be dynamically calculated
2462          */
2463         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2464                         sizeof(struct fcp_rsp) +
2465                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2466         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2467         return;
2468 }
2469
2470 void
2471 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2472 {
2473         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2474         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2475         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2476         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2477         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2478         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2479         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2480         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2481         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2482         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2483         lpfc_max_luns_init(vport, lpfc_max_luns);
2484         lpfc_scan_down_init(vport, lpfc_scan_down);
2485         lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
2486         return;
2487 }