err.no Git - linux-2.6/blob - drivers/scsi/lpfc/lpfc_attr.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 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 - \n");
 191
 192                 switch (vport->port_state) {
 193                         len += snprintf(buf + len, PAGE_SIZE-len,
 194                                         "initializing\n");
 195                         break;
 196                 case LPFC_LOCAL_CFG_LINK:
 197                         len += snprintf(buf + len, PAGE_SIZE-len,
 198                                         "Configuring Link\n");
 199                         break;
 200                 case LPFC_FDISC:
 201                 case LPFC_FLOGI:
 202                 case LPFC_FABRIC_CFG_LINK:
 203                 case LPFC_NS_REG:
 204                 case LPFC_NS_QRY:
 205                 case LPFC_BUILD_DISC_LIST:
 206                 case LPFC_DISC_AUTH:
 207                         len += snprintf(buf + len, PAGE_SIZE - len,
 208                                         "Discovery\n");
 209                         break;
 210                 case LPFC_VPORT_READY:
 211                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 212                         break;
 213
 214                 case LPFC_VPORT_FAILED:
 215                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 216                         break;
 217
 218                 case LPFC_VPORT_UNKNOWN:
 219                         len += snprintf(buf + len, PAGE_SIZE - len,
 220                                         "Unknown\n");
 221                         break;
 222                 }
 223
 224                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 225                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 226                                 len += snprintf(buf + len, PAGE_SIZE-len,
 227                                                 "   Public Loop\n");
 228                         else
 229                                 len += snprintf(buf + len, PAGE_SIZE-len,
 230                                                 "   Private Loop\n");
 231                 } else {
 232                         if (vport->fc_flag & FC_FABRIC)
 233                                 len += snprintf(buf + len, PAGE_SIZE-len,
 234                                                 "   Fabric\n");
 235                         else
 236                                 len += snprintf(buf + len, PAGE_SIZE-len,
 237                                                 "   Point-2-Point\n");
 238                 }
 239         }
 240
 241         return len;
 242 }
 243
 244 static ssize_t
 245 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 246 {
 247         struct Scsi_Host  *shost = class_to_shost(cdev);
 248         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 249
 250         return snprintf(buf, PAGE_SIZE, "%d\n",
 251                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 252 }
 253
 254
 255 static int
 256 lpfc_issue_lip(struct Scsi_Host *shost)
 257 {
 258         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 259         struct lpfc_hba   *phba = vport->phba;
 260         LPFC_MBOXQ_t *pmboxq;
 261         int mbxstatus = MBXERR_ERROR;
 262
 263         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 264             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
 265             (vport->port_state != LPFC_VPORT_READY))
 266                 return -EPERM;
 267
 268         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 269
 270         if (!pmboxq)
 271                 return -ENOMEM;
 272
 273         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 274         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 275         pmboxq->mb.mbxOwner = OWN_HOST;
 276
 277         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 278
 279         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 280                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 281                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 282                                phba->cfg_link_speed);
 283                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 284                                                      phba->fc_ratov * 2);
 285         }
 286
 287         lpfc_set_loopback_flag(phba);
 288         if (mbxstatus != MBX_TIMEOUT)
 289                 mempool_free(pmboxq, phba->mbox_mem_pool);
 290
 291         if (mbxstatus == MBXERR_ERROR)
 292                 return -EIO;
 293
 294         return 0;
 295 }
 296
 297 static int
 298 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 299 {
 300         struct completion online_compl;
 301         struct lpfc_sli_ring *pring;
 302         struct lpfc_sli *psli;
 303         int status = 0;
 304         int cnt = 0;
 305         int i;
 306
 307         init_completion(&online_compl);
 308         lpfc_workq_post_event(phba, &status, &online_compl,
 309                               LPFC_EVT_OFFLINE_PREP);
 310         wait_for_completion(&online_compl);
 311
 312         if (status != 0)
 313                 return -EIO;
 314
 315         psli = &phba->sli;
 316
 317         for (i = 0; i < psli->num_rings; i++) {
 318                 pring = &psli->ring[i];
 319                 /* The linkdown event takes 30 seconds to timeout. */
 320                 while (pring->txcmplq_cnt) {
 321                         msleep(10);
 322                         if (cnt++ > 3000) {
 323                                 lpfc_printf_log(phba,
 324                                         KERN_WARNING, LOG_INIT,
 325                                         "0466 Outstanding IO when "
 326                                         "bringing Adapter offline\n");
 327                                 break;
 328                         }
 329                 }
 330         }
 331
 332         init_completion(&online_compl);
 333         lpfc_workq_post_event(phba, &status, &online_compl, type);
 334         wait_for_completion(&online_compl);
 335
 336         if (status != 0)
 337                 return -EIO;
 338
 339         return 0;
 340 }
 341
 342 static int
 343 lpfc_selective_reset(struct lpfc_hba *phba)
 344 {
 345         struct completion online_compl;
 346         int status = 0;
 347
 348         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 349
 350         if (status != 0)
 351                 return status;
 352
 353         init_completion(&online_compl);
 354         lpfc_workq_post_event(phba, &status, &online_compl,
 355                               LPFC_EVT_ONLINE);
 356         wait_for_completion(&online_compl);
 357
 358         if (status != 0)
 359                 return -EIO;
 360
 361         return 0;
 362 }
 363
 364 static ssize_t
 365 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 366 {
 367         struct Scsi_Host  *shost = class_to_shost(cdev);
 368         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 369         struct lpfc_hba   *phba = vport->phba;
 370
 371         int status = -EINVAL;
 372
 373         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 374                 status = lpfc_selective_reset(phba);
 375
 376         if (status == 0)
 377                 return strlen(buf);
 378         else
 379                 return status;
 380 }
 381
 382 static ssize_t
 383 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 384 {
 385         struct Scsi_Host  *shost = class_to_shost(cdev);
 386         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 387         struct lpfc_hba   *phba = vport->phba;
 388
 389         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 390 }
 391
 392 static ssize_t
 393 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 394 {
 395         struct Scsi_Host  *shost = class_to_shost(cdev);
 396         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 397         struct lpfc_hba   *phba = vport->phba;
 398         char  * state;
 399
 400         if (phba->link_state == LPFC_HBA_ERROR)
 401                 state = "error";
 402         else if (phba->link_state == LPFC_WARM_START)
 403                 state = "warm start";
 404         else if (phba->link_state == LPFC_INIT_START)
 405                 state = "offline";
 406         else
 407                 state = "online";
 408
 409         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 410 }
 411
 412 static ssize_t
 413 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 414 {
 415         struct Scsi_Host  *shost = class_to_shost(cdev);
 416         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 417         struct lpfc_hba   *phba = vport->phba;
 418         struct completion online_compl;
 419         int status=0;
 420
 421         init_completion(&online_compl);
 422
 423         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 424                 lpfc_workq_post_event(phba, &status, &online_compl,
 425                                       LPFC_EVT_ONLINE);
 426                 wait_for_completion(&online_compl);
 427         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 428                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 429         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 430                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 431         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 432                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 433         else
 434                 return -EINVAL;
 435
 436         if (!status)
 437                 return strlen(buf);
 438         else
 439                 return -EIO;
 440 }
 441
 442 static int
 443 lpfc_get_hba_info(struct lpfc_hba *phba,
 444                   uint32_t *mxri, uint32_t *axri,
 445                   uint32_t *mrpi, uint32_t *arpi,
 446                   uint32_t *mvpi, uint32_t *avpi)
 447 {
 448         struct lpfc_sli   *psli = &phba->sli;
 449         LPFC_MBOXQ_t *pmboxq;
 450         MAILBOX_t *pmb;
 451         int rc = 0;
 452
 453         /*
 454          * prevent udev from issuing mailbox commands until the port is
 455          * configured.
 456          */
 457         if (phba->link_state < LPFC_LINK_DOWN ||
 458             !phba->mbox_mem_pool ||
 459             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 460                 return 0;
 461
 462         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 463                 return 0;
 464
 465         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 466         if (!pmboxq)
 467                 return 0;
 468         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 469
 470         pmb = &pmboxq->mb;
 471         pmb->mbxCommand = MBX_READ_CONFIG;
 472         pmb->mbxOwner = OWN_HOST;
 473         pmboxq->context1 = NULL;
 474
 475         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 476                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 477                 rc = MBX_NOT_FINISHED;
 478         else
 479                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 480
 481         if (rc != MBX_SUCCESS) {
 482                 if (rc != MBX_TIMEOUT)
 483                         mempool_free(pmboxq, phba->mbox_mem_pool);
 484                 return 0;
 485         }
 486
 487         if (mrpi)
 488                 *mrpi = pmb->un.varRdConfig.max_rpi;
 489         if (arpi)
 490                 *arpi = pmb->un.varRdConfig.avail_rpi;
 491         if (mxri)
 492                 *mxri = pmb->un.varRdConfig.max_xri;
 493         if (axri)
 494                 *axri = pmb->un.varRdConfig.avail_xri;
 495         if (mvpi)
 496                 *mvpi = pmb->un.varRdConfig.max_vpi;
 497         if (avpi)
 498                 *avpi = pmb->un.varRdConfig.avail_vpi;
 499
 500         mempool_free(pmboxq, phba->mbox_mem_pool);
 501         return 1;
 502 }
 503
 504 static ssize_t
 505 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
 506 {
 507         struct Scsi_Host  *shost = class_to_shost(cdev);
 508         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 509         struct lpfc_hba   *phba = vport->phba;
 510         uint32_t cnt;
 511
 512         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 513                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 514         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 515 }
 516
 517 static ssize_t
 518 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
 519 {
 520         struct Scsi_Host  *shost = class_to_shost(cdev);
 521         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 522         struct lpfc_hba   *phba = vport->phba;
 523         uint32_t cnt, acnt;
 524
 525         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 526                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 527         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 528 }
 529
 530 static ssize_t
 531 lpfc_max_xri_show(struct class_device *cdev, char *buf)
 532 {
 533         struct Scsi_Host  *shost = class_to_shost(cdev);
 534         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 535         struct lpfc_hba   *phba = vport->phba;
 536         uint32_t cnt;
 537
 538         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
 539                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 540         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 541 }
 542
 543 static ssize_t
 544 lpfc_used_xri_show(struct class_device *cdev, char *buf)
 545 {
 546         struct Scsi_Host  *shost = class_to_shost(cdev);
 547         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 548         struct lpfc_hba   *phba = vport->phba;
 549         uint32_t cnt, acnt;
 550
 551         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 552                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 553         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 554 }
 555
 556 static ssize_t
 557 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
 558 {
 559         struct Scsi_Host  *shost = class_to_shost(cdev);
 560         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 561         struct lpfc_hba   *phba = vport->phba;
 562         uint32_t cnt;
 563
 564         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 565                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 566         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 567 }
 568
 569 static ssize_t
 570 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
 571 {
 572         struct Scsi_Host  *shost = class_to_shost(cdev);
 573         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 574         struct lpfc_hba   *phba = vport->phba;
 575         uint32_t cnt, acnt;
 576
 577         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 578                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 579         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 580 }
 581
 582 static ssize_t
 583 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
 584 {
 585         struct Scsi_Host  *shost = class_to_shost(cdev);
 586         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 587         struct lpfc_hba   *phba = vport->phba;
 588
 589         if (!(phba->max_vpi))
 590                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 591         if (vport->port_type == LPFC_PHYSICAL_PORT)
 592                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 593         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 594 }
 595
 596 static ssize_t
 597 lpfc_poll_show(struct class_device *cdev, char *buf)
 598 {
 599         struct Scsi_Host  *shost = class_to_shost(cdev);
 600         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 601         struct lpfc_hba   *phba = vport->phba;
 602
 603         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 604 }
 605
 606 static ssize_t
 607 lpfc_poll_store(struct class_device *cdev, const char *buf,
 608                 size_t count)
 609 {
 610         struct Scsi_Host  *shost = class_to_shost(cdev);
 611         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 612         struct lpfc_hba   *phba = vport->phba;
 613         uint32_t creg_val;
 614         uint32_t old_val;
 615         int val=0;
 616
 617         if (!isdigit(buf[0]))
 618                 return -EINVAL;
 619
 620         if (sscanf(buf, "%i", &val) != 1)
 621                 return -EINVAL;
 622
 623         if ((val & 0x3) != val)
 624                 return -EINVAL;
 625
 626         spin_lock_irq(&phba->hbalock);
 627
 628         old_val = phba->cfg_poll;
 629
 630         if (val & ENABLE_FCP_RING_POLLING) {
 631                 if ((val & DISABLE_FCP_RING_INT) &&
 632                     !(old_val & DISABLE_FCP_RING_INT)) {
 633                         creg_val = readl(phba->HCregaddr);
 634                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 635                         writel(creg_val, phba->HCregaddr);
 636                         readl(phba->HCregaddr); /* flush */
 637
 638                         lpfc_poll_start_timer(phba);
 639                 }
 640         } else if (val != 0x0) {
 641                 spin_unlock_irq(&phba->hbalock);
 642                 return -EINVAL;
 643         }
 644
 645         if (!(val & DISABLE_FCP_RING_INT) &&
 646             (old_val & DISABLE_FCP_RING_INT))
 647         {
 648                 spin_unlock_irq(&phba->hbalock);
 649                 del_timer(&phba->fcp_poll_timer);
 650                 spin_lock_irq(&phba->hbalock);
 651                 creg_val = readl(phba->HCregaddr);
 652                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 653                 writel(creg_val, phba->HCregaddr);
 654                 readl(phba->HCregaddr); /* flush */
 655         }
 656
 657         phba->cfg_poll = val;
 658
 659         spin_unlock_irq(&phba->hbalock);
 660
 661         return strlen(buf);
 662 }
 663
 664 #define lpfc_param_show(attr)   \
 665 static ssize_t \
 666 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 667 { \
 668         struct Scsi_Host  *shost = class_to_shost(cdev);\
 669         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 670         struct lpfc_hba   *phba = vport->phba;\
 671         int val = 0;\
 672         val = phba->cfg_##attr;\
 673         return snprintf(buf, PAGE_SIZE, "%d\n",\
 674                         phba->cfg_##attr);\
 675 }
 676
 677 #define lpfc_param_hex_show(attr)       \
 678 static ssize_t \
 679 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 680 { \
 681         struct Scsi_Host  *shost = class_to_shost(cdev);\
 682         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 683         struct lpfc_hba   *phba = vport->phba;\
 684         int val = 0;\
 685         val = phba->cfg_##attr;\
 686         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 687                         phba->cfg_##attr);\
 688 }
 689
 690 #define lpfc_param_init(attr, default, minval, maxval)  \
 691 static int \
 692 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 693 { \
 694         if (val >= minval && val <= maxval) {\
 695                 phba->cfg_##attr = val;\
 696                 return 0;\
 697         }\
 698         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 699                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 700                         "allowed range is ["#minval", "#maxval"]\n", val); \
 701         phba->cfg_##attr = default;\
 702         return -EINVAL;\
 703 }
 704
 705 #define lpfc_param_set(attr, default, minval, maxval)   \
 706 static int \
 707 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 708 { \
 709         if (val >= minval && val <= maxval) {\
 710                 phba->cfg_##attr = val;\
 711                 return 0;\
 712         }\
 713         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 714                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 715                         "allowed range is ["#minval", "#maxval"]\n", val); \
 716         return -EINVAL;\
 717 }
 718
 719 #define lpfc_param_store(attr)  \
 720 static ssize_t \
 721 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 722 { \
 723         struct Scsi_Host  *shost = class_to_shost(cdev);\
 724         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 725         struct lpfc_hba   *phba = vport->phba;\
 726         int val=0;\
 727         if (!isdigit(buf[0]))\
 728                 return -EINVAL;\
 729         if (sscanf(buf, "%i", &val) != 1)\
 730                 return -EINVAL;\
 731         if (lpfc_##attr##_set(phba, val) == 0) \
 732                 return strlen(buf);\
 733         else \
 734                 return -EINVAL;\
 735 }
 736
 737 #define lpfc_vport_param_show(attr)     \
 738 static ssize_t \
 739 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 740 { \
 741         struct Scsi_Host  *shost = class_to_shost(cdev);\
 742         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 743         int val = 0;\
 744         val = vport->cfg_##attr;\
 745         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 746 }
 747
 748 #define lpfc_vport_param_hex_show(attr) \
 749 static ssize_t \
 750 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 751 { \
 752         struct Scsi_Host  *shost = class_to_shost(cdev);\
 753         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 754         int val = 0;\
 755         val = vport->cfg_##attr;\
 756         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 757 }
 758
 759 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
 760 static int \
 761 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
 762 { \
 763         if (val >= minval && val <= maxval) {\
 764                 vport->cfg_##attr = val;\
 765                 return 0;\
 766         }\
 767         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 768                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 769                          "allowed range is ["#minval", "#maxval"]\n", val); \
 770         vport->cfg_##attr = default;\
 771         return -EINVAL;\
 772 }
 773
 774 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 775 static int \
 776 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 777 { \
 778         if (val >= minval && val <= maxval) {\
 779                 vport->cfg_##attr = val;\
 780                 return 0;\
 781         }\
 782         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 783                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 784                          "allowed range is ["#minval", "#maxval"]\n", val); \
 785         return -EINVAL;\
 786 }
 787
 788 #define lpfc_vport_param_store(attr)    \
 789 static ssize_t \
 790 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 791 { \
 792         struct Scsi_Host  *shost = class_to_shost(cdev);\
 793         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 794         int val=0;\
 795         if (!isdigit(buf[0]))\
 796                 return -EINVAL;\
 797         if (sscanf(buf, "%i", &val) != 1)\
 798                 return -EINVAL;\
 799         if (lpfc_##attr##_set(vport, val) == 0) \
 800                 return strlen(buf);\
 801         else \
 802                 return -EINVAL;\
 803 }
 804
 805
 806 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 807 static int lpfc_##name = defval;\
 808 module_param(lpfc_##name, int, 0);\
 809 MODULE_PARM_DESC(lpfc_##name, desc);\
 810 lpfc_param_init(name, defval, minval, maxval)
 811
 812 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 813 static int lpfc_##name = defval;\
 814 module_param(lpfc_##name, int, 0);\
 815 MODULE_PARM_DESC(lpfc_##name, desc);\
 816 lpfc_param_show(name)\
 817 lpfc_param_init(name, defval, minval, maxval)\
 818 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 819
 820 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 821 static int lpfc_##name = defval;\
 822 module_param(lpfc_##name, int, 0);\
 823 MODULE_PARM_DESC(lpfc_##name, desc);\
 824 lpfc_param_show(name)\
 825 lpfc_param_init(name, defval, minval, maxval)\
 826 lpfc_param_set(name, defval, minval, maxval)\
 827 lpfc_param_store(name)\
 828 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 829                          lpfc_##name##_show, lpfc_##name##_store)
 830
 831 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 832 static int lpfc_##name = defval;\
 833 module_param(lpfc_##name, int, 0);\
 834 MODULE_PARM_DESC(lpfc_##name, desc);\
 835 lpfc_param_hex_show(name)\
 836 lpfc_param_init(name, defval, minval, maxval)\
 837 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 838
 839 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 840 static int lpfc_##name = defval;\
 841 module_param(lpfc_##name, int, 0);\
 842 MODULE_PARM_DESC(lpfc_##name, desc);\
 843 lpfc_param_hex_show(name)\
 844 lpfc_param_init(name, defval, minval, maxval)\
 845 lpfc_param_set(name, defval, minval, maxval)\
 846 lpfc_param_store(name)\
 847 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 848                          lpfc_##name##_show, lpfc_##name##_store)
 849
 850 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 851 static int lpfc_##name = defval;\
 852 module_param(lpfc_##name, int, 0);\
 853 MODULE_PARM_DESC(lpfc_##name, desc);\
 854 lpfc_vport_param_init(name, defval, minval, maxval)
 855
 856 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 857 static int lpfc_##name = defval;\
 858 module_param(lpfc_##name, int, 0);\
 859 MODULE_PARM_DESC(lpfc_##name, desc);\
 860 lpfc_vport_param_show(name)\
 861 lpfc_vport_param_init(name, defval, minval, maxval)\
 862 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 863
 864 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 865 static int lpfc_##name = defval;\
 866 module_param(lpfc_##name, int, 0);\
 867 MODULE_PARM_DESC(lpfc_##name, desc);\
 868 lpfc_vport_param_show(name)\
 869 lpfc_vport_param_init(name, defval, minval, maxval)\
 870 lpfc_vport_param_set(name, defval, minval, maxval)\
 871 lpfc_vport_param_store(name)\
 872 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 873                          lpfc_##name##_show, lpfc_##name##_store)
 874
 875 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 876 static int lpfc_##name = defval;\
 877 module_param(lpfc_##name, int, 0);\
 878 MODULE_PARM_DESC(lpfc_##name, desc);\
 879 lpfc_vport_param_hex_show(name)\
 880 lpfc_vport_param_init(name, defval, minval, maxval)\
 881 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 882
 883 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 884 static int lpfc_##name = defval;\
 885 module_param(lpfc_##name, int, 0);\
 886 MODULE_PARM_DESC(lpfc_##name, desc);\
 887 lpfc_vport_param_hex_show(name)\
 888 lpfc_vport_param_init(name, defval, minval, maxval)\
 889 lpfc_vport_param_set(name, defval, minval, maxval)\
 890 lpfc_vport_param_store(name)\
 891 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 892                          lpfc_##name##_show, lpfc_##name##_store)
 893
 894 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 895 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 896 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 897 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 898 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 899 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 900 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 901 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 902 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 903 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 904                                         lpfc_option_rom_version_show, NULL);
 905 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 906                                         lpfc_num_discovered_ports_show, NULL);
 907 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 908 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 909                          NULL);
 910 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 911                          lpfc_board_mode_show, lpfc_board_mode_store);
 912 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 913 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 914 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 915 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 916 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 917 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 918 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 919 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 920 static CLASS_DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show,
 921                          NULL);
 922
 923
 924 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 925
 926 static ssize_t
 927 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 928                                 size_t count)
 929 {
 930         struct Scsi_Host  *shost = class_to_shost(cdev);
 931         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 932         struct lpfc_hba   *phba = vport->phba;
 933         unsigned int cnt = count;
 934
 935         /*
 936          * We're doing a simple sanity check for soft_wwpn setting.
 937          * We require that the user write a specific key to enable
 938          * the soft_wwpn attribute to be settable. Once the attribute
 939          * is written, the enable key resets. If further updates are
 940          * desired, the key must be written again to re-enable the
 941          * attribute.
 942          *
 943          * The "key" is not secret - it is a hardcoded string shown
 944          * here. The intent is to protect against the random user or
 945          * application that is just writing attributes.
 946          */
 947
 948         /* count may include a LF at end of string */
 949         if (buf[cnt-1] == '\n')
 950                 cnt--;
 951
 952         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 953             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 954                 return -EINVAL;
 955
 956         phba->soft_wwn_enable = 1;
 957         return count;
 958 }
 959 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 960                                 lpfc_soft_wwn_enable_store);
 961
 962 static ssize_t
 963 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 964 {
 965         struct Scsi_Host  *shost = class_to_shost(cdev);
 966         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 967         struct lpfc_hba   *phba = vport->phba;
 968
 969         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 970                         (unsigned long long)phba->cfg_soft_wwpn);
 971 }
 972
 973
 974 static ssize_t
 975 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 976 {
 977         struct Scsi_Host  *shost = class_to_shost(cdev);
 978         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 979         struct lpfc_hba   *phba = vport->phba;
 980         struct completion online_compl;
 981         int stat1=0, stat2=0;
 982         unsigned int i, j, cnt=count;
 983         u8 wwpn[8];
 984
 985         /* count may include a LF at end of string */
 986         if (buf[cnt-1] == '\n')
 987                 cnt--;
 988
 989         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 990             ((cnt == 17) && (*buf++ != 'x')) ||
 991             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 992                 return -EINVAL;
 993
 994         phba->soft_wwn_enable = 0;
 995
 996         memset(wwpn, 0, sizeof(wwpn));
 997
 998         /* Validate and store the new name */
 999         for (i=0, j=0; i < 16; i++) {
1000                 if ((*buf >= 'a') && (*buf <= 'f'))
1001                         j = ((j << 4) | ((*buf++ -'a') + 10));
1002                 else if ((*buf >= 'A') && (*buf <= 'F'))
1003                         j = ((j << 4) | ((*buf++ -'A') + 10));
1004                 else if ((*buf >= '0') && (*buf <= '9'))
1005                         j = ((j << 4) | (*buf++ -'0'));
1006                 else
1007                         return -EINVAL;
1008                 if (i % 2) {
1009                         wwpn[i/2] = j & 0xff;
1010                         j = 0;
1011                 }
1012         }
1013         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1014         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1015         if (phba->cfg_soft_wwnn)
1016                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1017
1018         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1019                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1020
1021         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1022         if (stat1)
1023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1024                                 "0463 lpfc_soft_wwpn attribute set failed to "
1025                                 "reinit adapter - %d\n", stat1);
1026         init_completion(&online_compl);
1027         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1028         wait_for_completion(&online_compl);
1029         if (stat2)
1030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1031                                 "0464 lpfc_soft_wwpn attribute set failed to "
1032                                 "reinit adapter - %d\n", stat2);
1033         return (stat1 || stat2) ? -EIO : count;
1034 }
1035 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1036                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1037
1038 static ssize_t
1039 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1040 {
1041         struct Scsi_Host *shost = class_to_shost(cdev);
1042         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1043         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1044                         (unsigned long long)phba->cfg_soft_wwnn);
1045 }
1046
1047
1048 static ssize_t
1049 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1050 {
1051         struct Scsi_Host *shost = class_to_shost(cdev);
1052         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1053         unsigned int i, j, cnt=count;
1054         u8 wwnn[8];
1055
1056         /* count may include a LF at end of string */
1057         if (buf[cnt-1] == '\n')
1058                 cnt--;
1059
1060         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1061             ((cnt == 17) && (*buf++ != 'x')) ||
1062             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1063                 return -EINVAL;
1064
1065         /*
1066          * Allow wwnn to be set many times, as long as the enable is set.
1067          * However, once the wwpn is set, everything locks.
1068          */
1069
1070         memset(wwnn, 0, sizeof(wwnn));
1071
1072         /* Validate and store the new name */
1073         for (i=0, j=0; i < 16; i++) {
1074                 if ((*buf >= 'a') && (*buf <= 'f'))
1075                         j = ((j << 4) | ((*buf++ -'a') + 10));
1076                 else if ((*buf >= 'A') && (*buf <= 'F'))
1077                         j = ((j << 4) | ((*buf++ -'A') + 10));
1078                 else if ((*buf >= '0') && (*buf <= '9'))
1079                         j = ((j << 4) | (*buf++ -'0'));
1080                 else
1081                         return -EINVAL;
1082                 if (i % 2) {
1083                         wwnn[i/2] = j & 0xff;
1084                         j = 0;
1085                 }
1086         }
1087         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1088
1089         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1090                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1091                    "setting of the soft_wwpn\n", phba->brd_no);
1092
1093         return count;
1094 }
1095 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1096                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1097
1098
1099 static int lpfc_poll = 0;
1100 module_param(lpfc_poll, int, 0);
1101 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1102                  " 0 - none,"
1103                  " 1 - poll with interrupts enabled"
1104                  " 3 - poll and disable FCP ring interrupts");
1105
1106 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1107                          lpfc_poll_show, lpfc_poll_store);
1108
1109 int  lpfc_sli_mode = 0;
1110 module_param(lpfc_sli_mode, int, 0);
1111 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1112                  " 0 - auto (SLI-3 if supported),"
1113                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1114                  " 3 - select SLI-3");
1115
1116 LPFC_ATTR_R(enable_npiv, 0, 0, 1, "Enable NPIV functionality");
1117
1118 /*
1119 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1120 # until the timer expires. Value range is [0,255]. Default value is 30.
1121 */
1122 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1123 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1124 module_param(lpfc_nodev_tmo, int, 0);
1125 MODULE_PARM_DESC(lpfc_nodev_tmo,
1126                  "Seconds driver will hold I/O waiting "
1127                  "for a device to come back");
1128 static ssize_t
1129 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1130 {
1131         struct Scsi_Host  *shost = class_to_shost(cdev);
1132         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1133         int val = 0;
1134         val = vport->cfg_devloss_tmo;
1135         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1136 }
1137
1138 static int
1139 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1140 {
1141         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1142                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1143                 if (val != LPFC_DEF_DEVLOSS_TMO)
1144                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1145                                          "0402 Ignoring nodev_tmo module "
1146                                          "parameter because devloss_tmo is "
1147                                          "set.\n");
1148                 return 0;
1149         }
1150
1151         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1152                 vport->cfg_nodev_tmo = val;
1153                 vport->cfg_devloss_tmo = val;
1154                 return 0;
1155         }
1156         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1157                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1158                          " %d, allowed range is [%d, %d]\n",
1159                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1160         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1161         return -EINVAL;
1162 }
1163
1164 static void
1165 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1166 {
1167         struct Scsi_Host  *shost;
1168         struct lpfc_nodelist  *ndlp;
1169
1170         shost = lpfc_shost_from_vport(vport);
1171         spin_lock_irq(shost->host_lock);
1172         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
1173                 if (ndlp->rport)
1174                         ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
1175         spin_unlock_irq(shost->host_lock);
1176 }
1177
1178 static int
1179 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1180 {
1181         if (vport->dev_loss_tmo_changed ||
1182             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1183                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1184                                  "0401 Ignoring change to nodev_tmo "
1185                                  "because devloss_tmo is set.\n");
1186                 return 0;
1187         }
1188         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1189                 vport->cfg_nodev_tmo = val;
1190                 vport->cfg_devloss_tmo = val;
1191                 lpfc_update_rport_devloss_tmo(vport);
1192                 return 0;
1193         }
1194         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1195                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1196                          "%d, allowed range is [%d, %d]\n",
1197                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1198         return -EINVAL;
1199 }
1200
1201 lpfc_vport_param_store(nodev_tmo)
1202
1203 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1204                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1205
1206 /*
1207 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1208 # disappear until the timer expires. Value range is [0,255]. Default
1209 # value is 30.
1210 */
1211 module_param(lpfc_devloss_tmo, int, 0);
1212 MODULE_PARM_DESC(lpfc_devloss_tmo,
1213                  "Seconds driver will hold I/O waiting "
1214                  "for a device to come back");
1215 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1216                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1217 lpfc_vport_param_show(devloss_tmo)
1218 static int
1219 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1220 {
1221         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1222                 vport->cfg_nodev_tmo = val;
1223                 vport->cfg_devloss_tmo = val;
1224                 vport->dev_loss_tmo_changed = 1;
1225                 lpfc_update_rport_devloss_tmo(vport);
1226                 return 0;
1227         }
1228
1229         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1230                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1231                          " %d, allowed range is [%d, %d]\n",
1232                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1233         return -EINVAL;
1234 }
1235
1236 lpfc_vport_param_store(devloss_tmo)
1237 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1238         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1239
1240 /*
1241 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1242 # deluged with LOTS of information.
1243 # You can set a bit mask to record specific types of verbose messages:
1244 #
1245 # LOG_ELS                       0x1        ELS events
1246 # LOG_DISCOVERY                 0x2        Link discovery events
1247 # LOG_MBOX                      0x4        Mailbox events
1248 # LOG_INIT                      0x8        Initialization events
1249 # LOG_LINK_EVENT                0x10       Link events
1250 # LOG_FCP                       0x40       FCP traffic history
1251 # LOG_NODE                      0x80       Node table events
1252 # LOG_MISC                      0x400      Miscellaneous events
1253 # LOG_SLI                       0x800      SLI events
1254 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1255 # LOG_LIBDFC                    0x2000     LIBDFC events
1256 # LOG_ALL_MSG                   0xffff     LOG all messages
1257 */
1258 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1259                        "Verbose logging bit-mask");
1260
1261 /*
1262 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1263 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1264 */
1265 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1266                   "Max number of FCP commands we can queue to a specific LUN");
1267
1268 /*
1269 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1270 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1271 # value is greater than the maximum number of exchanges supported by the HBA,
1272 # then maximum number of exchanges supported by the HBA is used to determine
1273 # the hba_queue_depth.
1274 */
1275 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1276             "Max number of FCP commands we can queue to a lpfc HBA");
1277
1278 /*
1279 # peer_port_login:  This parameter allows/prevents logins
1280 # between peer ports hosted on the same physical port.
1281 # When this parameter is set 0 peer ports of same physical port
1282 # are not allowed to login to each other.
1283 # When this parameter is set 1 peer ports of same physical port
1284 # are allowed to login to each other.
1285 # Default value of this parameter is 0.
1286 */
1287 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1288                   "Allow peer ports on the same physical port to login to each "
1289                   "other.");
1290
1291 /*
1292 # restrict_login:  This parameter allows/prevents logins
1293 # between Virtual Ports and remote initiators.
1294 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1295 # other initiators and will attempt to PLOGI all remote ports.
1296 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1297 # remote ports and will not attempt to PLOGI to other initiators.
1298 # This parameter does not restrict to the physical port.
1299 # This parameter does not restrict logins to Fabric resident remote ports.
1300 # Default value of this parameter is 1.
1301 */
1302 static int lpfc_restrict_login = 1;
1303 module_param(lpfc_restrict_login, int, 0);
1304 MODULE_PARM_DESC(lpfc_restrict_login,
1305                  "Restrict virtual ports login to remote initiators.");
1306 lpfc_vport_param_show(restrict_login);
1307
1308 static int
1309 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1310 {
1311         if (val < 0 || val > 1) {
1312                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1313                                  "0449 lpfc_restrict_login attribute cannot "
1314                                  "be set to %d, allowed range is [0, 1]\n",
1315                                  val);
1316                 vport->cfg_restrict_login = 1;
1317                 return -EINVAL;
1318         }
1319         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1320                 vport->cfg_restrict_login = 0;
1321                 return 0;
1322         }
1323         vport->cfg_restrict_login = val;
1324         return 0;
1325 }
1326
1327 static int
1328 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1329 {
1330         if (val < 0 || val > 1) {
1331                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1332                                  "0450 lpfc_restrict_login attribute cannot "
1333                                  "be set to %d, allowed range is [0, 1]\n",
1334                                  val);
1335                 vport->cfg_restrict_login = 1;
1336                 return -EINVAL;
1337         }
1338         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1339                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1340                                  "0468 lpfc_restrict_login must be 0 for "
1341                                  "Physical ports.\n");
1342                 vport->cfg_restrict_login = 0;
1343                 return 0;
1344         }
1345         vport->cfg_restrict_login = val;
1346         return 0;
1347 }
1348 lpfc_vport_param_store(restrict_login);
1349 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1350                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1351
1352 /*
1353 # Some disk devices have a "select ID" or "select Target" capability.
1354 # From a protocol standpoint "select ID" usually means select the
1355 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1356 # annex" which contains a table that maps a "select ID" (a number
1357 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1358 # older drivers, the lpfc driver scans this table from low ALPA to high
1359 # ALPA.
1360 #
1361 # Turning on the scan-down variable (on  = 1, off = 0) will
1362 # cause the lpfc driver to use an inverted table, effectively
1363 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1364 #
1365 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1366 # and will not work across a fabric. Also this parameter will take
1367 # effect only in the case when ALPA map is not available.)
1368 */
1369 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1370                   "Start scanning for devices from highest ALPA to lowest");
1371
1372 /*
1373 # lpfc_topology:  link topology for init link
1374 #            0x0  = attempt loop mode then point-to-point
1375 #            0x01 = internal loopback mode
1376 #            0x02 = attempt point-to-point mode only
1377 #            0x04 = attempt loop mode only
1378 #            0x06 = attempt point-to-point mode then loop
1379 # Set point-to-point mode if you want to run as an N_Port.
1380 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1381 # Default value is 0.
1382 */
1383 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1384
1385 /*
1386 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1387 # connection.
1388 #       0  = auto select (default)
1389 #       1  = 1 Gigabaud
1390 #       2  = 2 Gigabaud
1391 #       4  = 4 Gigabaud
1392 #       8  = 8 Gigabaud
1393 # Value range is [0,8]. Default value is 0.
1394 */
1395 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1396
1397 /*
1398 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1399 # Value range is [2,3]. Default value is 3.
1400 */
1401 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1402                   "Select Fibre Channel class of service for FCP sequences");
1403
1404 /*
1405 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1406 # is [0,1]. Default value is 0.
1407 */
1408 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1409                    "Use ADISC on rediscovery to authenticate FCP devices");
1410
1411 /*
1412 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1413 # range is [0,1]. Default value is 0.
1414 */
1415 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1416
1417 /*
1418 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1419 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1420 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1421 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1422 # cr_delay is set to 0.
1423 */
1424 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1425                 "interrupt response is generated");
1426
1427 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1428                 "interrupt response is generated");
1429
1430 /*
1431 # lpfc_multi_ring_support:  Determines how many rings to spread available
1432 # cmd/rsp IOCB entries across.
1433 # Value range is [1,2]. Default value is 1.
1434 */
1435 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1436                 "SLI rings to spread IOCB entries across");
1437
1438 /*
1439 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1440 # identifies what rctl value to configure the additional ring for.
1441 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1442 */
1443 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1444              255, "Identifies RCTL for additional ring configuration");
1445
1446 /*
1447 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1448 # identifies what type value to configure the additional ring for.
1449 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1450 */
1451 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1452              255, "Identifies TYPE for additional ring configuration");
1453
1454 /*
1455 # lpfc_fdmi_on: controls FDMI support.
1456 #       0 = no FDMI support
1457 #       1 = support FDMI without attribute of hostname
1458 #       2 = support FDMI with attribute of hostname
1459 # Value range [0,2]. Default value is 0.
1460 */
1461 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1462
1463 /*
1464 # Specifies the maximum number of ELS cmds we can have outstanding (for
1465 # discovery). Value range is [1,64]. Default value = 32.
1466 */
1467 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1468                  "during discovery");
1469
1470 /*
1471 # lpfc_max_luns: maximum allowed LUN.
1472 # Value range is [0,65535]. Default value is 255.
1473 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1474 */
1475 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1476
1477 /*
1478 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1479 # Value range is [1,255], default value is 10.
1480 */
1481 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1482              "Milliseconds driver will wait between polling FCP ring");
1483
1484 /*
1485 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1486 #               support this feature
1487 #       0  = MSI disabled (default)
1488 #       1  = MSI enabled
1489 # Value range is [0,1]. Default value is 0.
1490 */
1491 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1492
1493
1494
1495 struct class_device_attribute *lpfc_hba_attrs[] = {
1496         &class_device_attr_info,
1497         &class_device_attr_serialnum,
1498         &class_device_attr_modeldesc,
1499         &class_device_attr_modelname,
1500         &class_device_attr_programtype,
1501         &class_device_attr_portnum,
1502         &class_device_attr_fwrev,
1503         &class_device_attr_hdw,
1504         &class_device_attr_option_rom_version,
1505         &class_device_attr_state,
1506         &class_device_attr_num_discovered_ports,
1507         &class_device_attr_lpfc_drvr_version,
1508         &class_device_attr_lpfc_temp_sensor,
1509         &class_device_attr_lpfc_log_verbose,
1510         &class_device_attr_lpfc_lun_queue_depth,
1511         &class_device_attr_lpfc_hba_queue_depth,
1512         &class_device_attr_lpfc_peer_port_login,
1513         &class_device_attr_lpfc_nodev_tmo,
1514         &class_device_attr_lpfc_devloss_tmo,
1515         &class_device_attr_lpfc_fcp_class,
1516         &class_device_attr_lpfc_use_adisc,
1517         &class_device_attr_lpfc_ack0,
1518         &class_device_attr_lpfc_topology,
1519         &class_device_attr_lpfc_scan_down,
1520         &class_device_attr_lpfc_link_speed,
1521         &class_device_attr_lpfc_cr_delay,
1522         &class_device_attr_lpfc_cr_count,
1523         &class_device_attr_lpfc_multi_ring_support,
1524         &class_device_attr_lpfc_multi_ring_rctl,
1525         &class_device_attr_lpfc_multi_ring_type,
1526         &class_device_attr_lpfc_fdmi_on,
1527         &class_device_attr_lpfc_max_luns,
1528         &class_device_attr_lpfc_enable_npiv,
1529         &class_device_attr_nport_evt_cnt,
1530         &class_device_attr_board_mode,
1531         &class_device_attr_max_vpi,
1532         &class_device_attr_used_vpi,
1533         &class_device_attr_max_rpi,
1534         &class_device_attr_used_rpi,
1535         &class_device_attr_max_xri,
1536         &class_device_attr_used_xri,
1537         &class_device_attr_npiv_info,
1538         &class_device_attr_issue_reset,
1539         &class_device_attr_lpfc_poll,
1540         &class_device_attr_lpfc_poll_tmo,
1541         &class_device_attr_lpfc_use_msi,
1542         &class_device_attr_lpfc_soft_wwnn,
1543         &class_device_attr_lpfc_soft_wwpn,
1544         &class_device_attr_lpfc_soft_wwn_enable,
1545         NULL,
1546 };
1547
1548 struct class_device_attribute *lpfc_vport_attrs[] = {
1549         &class_device_attr_info,
1550         &class_device_attr_state,
1551         &class_device_attr_num_discovered_ports,
1552         &class_device_attr_lpfc_drvr_version,
1553
1554         &class_device_attr_lpfc_log_verbose,
1555         &class_device_attr_lpfc_lun_queue_depth,
1556         &class_device_attr_lpfc_nodev_tmo,
1557         &class_device_attr_lpfc_devloss_tmo,
1558         &class_device_attr_lpfc_hba_queue_depth,
1559         &class_device_attr_lpfc_peer_port_login,
1560         &class_device_attr_lpfc_restrict_login,
1561         &class_device_attr_lpfc_fcp_class,
1562         &class_device_attr_lpfc_use_adisc,
1563         &class_device_attr_lpfc_fdmi_on,
1564         &class_device_attr_lpfc_max_luns,
1565         &class_device_attr_nport_evt_cnt,
1566         &class_device_attr_npiv_info,
1567         NULL,
1568 };
1569
1570 static ssize_t
1571 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1572                    char *buf, loff_t off, size_t count)
1573 {
1574         size_t buf_off;
1575         struct class_device *cdev = container_of(kobj, struct class_device,
1576                                                  kobj);
1577         struct Scsi_Host  *shost = class_to_shost(cdev);
1578         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1579         struct lpfc_hba   *phba = vport->phba;
1580
1581         if ((off + count) > FF_REG_AREA_SIZE)
1582                 return -ERANGE;
1583
1584         if (count == 0) return 0;
1585
1586         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1587                 return -EINVAL;
1588
1589         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1590                 return -EPERM;
1591         }
1592
1593         spin_lock_irq(&phba->hbalock);
1594         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1595                 writel(*((uint32_t *)(buf + buf_off)),
1596                        phba->ctrl_regs_memmap_p + off + buf_off);
1597
1598         spin_unlock_irq(&phba->hbalock);
1599
1600         return count;
1601 }
1602
1603 static ssize_t
1604 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1605                   char *buf, loff_t off, size_t count)
1606 {
1607         size_t buf_off;
1608         uint32_t * tmp_ptr;
1609         struct class_device *cdev = container_of(kobj, struct class_device,
1610                                                  kobj);
1611         struct Scsi_Host  *shost = class_to_shost(cdev);
1612         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1613         struct lpfc_hba   *phba = vport->phba;
1614
1615         if (off > FF_REG_AREA_SIZE)
1616                 return -ERANGE;
1617
1618         if ((off + count) > FF_REG_AREA_SIZE)
1619                 count = FF_REG_AREA_SIZE - off;
1620
1621         if (count == 0) return 0;
1622
1623         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1624                 return -EINVAL;
1625
1626         spin_lock_irq(&phba->hbalock);
1627
1628         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1629                 tmp_ptr = (uint32_t *)(buf + buf_off);
1630                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1631         }
1632
1633         spin_unlock_irq(&phba->hbalock);
1634
1635         return count;
1636 }
1637
1638 static struct bin_attribute sysfs_ctlreg_attr = {
1639         .attr = {
1640                 .name = "ctlreg",
1641                 .mode = S_IRUSR | S_IWUSR,
1642         },
1643         .size = 256,
1644         .read = sysfs_ctlreg_read,
1645         .write = sysfs_ctlreg_write,
1646 };
1647
1648
1649 static void
1650 sysfs_mbox_idle(struct lpfc_hba *phba)
1651 {
1652         phba->sysfs_mbox.state = SMBOX_IDLE;
1653         phba->sysfs_mbox.offset = 0;
1654
1655         if (phba->sysfs_mbox.mbox) {
1656                 mempool_free(phba->sysfs_mbox.mbox,
1657                              phba->mbox_mem_pool);
1658                 phba->sysfs_mbox.mbox = NULL;
1659         }
1660 }
1661
1662 static ssize_t
1663 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1664                  char *buf, loff_t off, size_t count)
1665 {
1666         struct class_device *cdev = container_of(kobj, struct class_device,
1667                                                  kobj);
1668         struct Scsi_Host  *shost = class_to_shost(cdev);
1669         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1670         struct lpfc_hba   *phba = vport->phba;
1671         struct lpfcMboxq  *mbox = NULL;
1672
1673         if ((count + off) > MAILBOX_CMD_SIZE)
1674                 return -ERANGE;
1675
1676         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1677                 return -EINVAL;
1678
1679         if (count == 0)
1680                 return 0;
1681
1682         if (off == 0) {
1683                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1684                 if (!mbox)
1685                         return -ENOMEM;
1686                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1687         }
1688
1689         spin_lock_irq(&phba->hbalock);
1690
1691         if (off == 0) {
1692                 if (phba->sysfs_mbox.mbox)
1693                         mempool_free(mbox, phba->mbox_mem_pool);
1694                 else
1695                         phba->sysfs_mbox.mbox = mbox;
1696                 phba->sysfs_mbox.state = SMBOX_WRITING;
1697         } else {
1698                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1699                     phba->sysfs_mbox.offset != off           ||
1700                     phba->sysfs_mbox.mbox   == NULL) {
1701                         sysfs_mbox_idle(phba);
1702                         spin_unlock_irq(&phba->hbalock);
1703                         return -EAGAIN;
1704                 }
1705         }
1706
1707         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1708                buf, count);
1709
1710         phba->sysfs_mbox.offset = off + count;
1711
1712         spin_unlock_irq(&phba->hbalock);
1713
1714         return count;
1715 }
1716
1717 static ssize_t
1718 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1719                 char *buf, loff_t off, size_t count)
1720 {
1721         struct class_device *cdev = container_of(kobj, struct class_device,
1722                                                  kobj);
1723         struct Scsi_Host  *shost = class_to_shost(cdev);
1724         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1725         struct lpfc_hba   *phba = vport->phba;
1726         int rc;
1727
1728         if (off > MAILBOX_CMD_SIZE)
1729                 return -ERANGE;
1730
1731         if ((count + off) > MAILBOX_CMD_SIZE)
1732                 count = MAILBOX_CMD_SIZE - off;
1733
1734         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1735                 return -EINVAL;
1736
1737         if (off && count == 0)
1738                 return 0;
1739
1740         spin_lock_irq(&phba->hbalock);
1741
1742         if (off == 0 &&
1743             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1744             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1745
1746                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1747                         /* Offline only */
1748                 case MBX_WRITE_NV:
1749                 case MBX_INIT_LINK:
1750                 case MBX_DOWN_LINK:
1751                 case MBX_CONFIG_LINK:
1752                 case MBX_CONFIG_RING:
1753                 case MBX_RESET_RING:
1754                 case MBX_UNREG_LOGIN:
1755                 case MBX_CLEAR_LA:
1756                 case MBX_DUMP_CONTEXT:
1757                 case MBX_RUN_DIAGS:
1758                 case MBX_RESTART:
1759                 case MBX_FLASH_WR_ULA:
1760                 case MBX_SET_MASK:
1761                 case MBX_SET_SLIM:
1762                 case MBX_SET_DEBUG:
1763                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1764                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1765                                        "is illegal in on-line state\n",
1766                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1767                                 sysfs_mbox_idle(phba);
1768                                 spin_unlock_irq(&phba->hbalock);
1769                                 return -EPERM;
1770                         }
1771                 case MBX_LOAD_SM:
1772                 case MBX_READ_NV:
1773                 case MBX_READ_CONFIG:
1774                 case MBX_READ_RCONFIG:
1775                 case MBX_READ_STATUS:
1776                 case MBX_READ_XRI:
1777                 case MBX_READ_REV:
1778                 case MBX_READ_LNK_STAT:
1779                 case MBX_DUMP_MEMORY:
1780                 case MBX_DOWN_LOAD:
1781                 case MBX_UPDATE_CFG:
1782                 case MBX_KILL_BOARD:
1783                 case MBX_LOAD_AREA:
1784                 case MBX_LOAD_EXP_ROM:
1785                 case MBX_BEACON:
1786                 case MBX_DEL_LD_ENTRY:
1787                         break;
1788                 case MBX_READ_SPARM64:
1789                 case MBX_READ_LA:
1790                 case MBX_READ_LA64:
1791                 case MBX_REG_LOGIN:
1792                 case MBX_REG_LOGIN64:
1793                 case MBX_CONFIG_PORT:
1794                 case MBX_RUN_BIU_DIAG:
1795                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1796                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1797                         sysfs_mbox_idle(phba);
1798                         spin_unlock_irq(&phba->hbalock);
1799                         return -EPERM;
1800                 default:
1801                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1802                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1803                         sysfs_mbox_idle(phba);
1804                         spin_unlock_irq(&phba->hbalock);
1805                         return -EPERM;
1806                 }
1807
1808                 phba->sysfs_mbox.mbox->vport = vport;
1809
1810                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1811                         sysfs_mbox_idle(phba);
1812                         spin_unlock_irq(&phba->hbalock);
1813                         return  -EAGAIN;
1814                 }
1815
1816                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1817                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1818
1819                         spin_unlock_irq(&phba->hbalock);
1820                         rc = lpfc_sli_issue_mbox (phba,
1821                                                   phba->sysfs_mbox.mbox,
1822                                                   MBX_POLL);
1823                         spin_lock_irq(&phba->hbalock);
1824
1825                 } else {
1826                         spin_unlock_irq(&phba->hbalock);
1827                         rc = lpfc_sli_issue_mbox_wait (phba,
1828                                                        phba->sysfs_mbox.mbox,
1829                                 lpfc_mbox_tmo_val(phba,
1830                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1831                         spin_lock_irq(&phba->hbalock);
1832                 }
1833
1834                 if (rc != MBX_SUCCESS) {
1835                         if (rc == MBX_TIMEOUT) {
1836                                 phba->sysfs_mbox.mbox = NULL;
1837                         }
1838                         sysfs_mbox_idle(phba);
1839                         spin_unlock_irq(&phba->hbalock);
1840                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1841                 }
1842                 phba->sysfs_mbox.state = SMBOX_READING;
1843         }
1844         else if (phba->sysfs_mbox.offset != off ||
1845                  phba->sysfs_mbox.state  != SMBOX_READING) {
1846                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1847                 sysfs_mbox_idle(phba);
1848                 spin_unlock_irq(&phba->hbalock);
1849                 return -EAGAIN;
1850         }
1851
1852         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1853
1854         phba->sysfs_mbox.offset = off + count;
1855
1856         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1857                 sysfs_mbox_idle(phba);
1858
1859         spin_unlock_irq(&phba->hbalock);
1860
1861         return count;
1862 }
1863
1864 static struct bin_attribute sysfs_mbox_attr = {
1865         .attr = {
1866                 .name = "mbox",
1867                 .mode = S_IRUSR | S_IWUSR,
1868         },
1869         .size = MAILBOX_CMD_SIZE,
1870         .read = sysfs_mbox_read,
1871         .write = sysfs_mbox_write,
1872 };
1873
1874 int
1875 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1876 {
1877         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1878         int error;
1879
1880         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1881                                       &sysfs_ctlreg_attr);
1882         if (error)
1883                 goto out;
1884
1885         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1886                                       &sysfs_mbox_attr);
1887         if (error)
1888                 goto out_remove_ctlreg_attr;
1889
1890         return 0;
1891 out_remove_ctlreg_attr:
1892         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1893 out:
1894         return error;
1895 }
1896
1897 void
1898 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1899 {
1900         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1901
1902         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1903         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1904 }
1905
1906
1907 /*
1908  * Dynamic FC Host Attributes Support
1909  */
1910
1911 static void
1912 lpfc_get_host_port_id(struct Scsi_Host *shost)
1913 {
1914         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1915
1916         /* note: fc_myDID already in cpu endianness */
1917         fc_host_port_id(shost) = vport->fc_myDID;
1918 }
1919
1920 static void
1921 lpfc_get_host_port_type(struct Scsi_Host *shost)
1922 {
1923         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1924         struct lpfc_hba   *phba = vport->phba;
1925
1926         spin_lock_irq(shost->host_lock);
1927
1928         if (vport->port_type == LPFC_NPIV_PORT) {
1929                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1930         } else if (lpfc_is_link_up(phba)) {
1931                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1932                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1933                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1934                         else
1935                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1936                 } else {
1937                         if (vport->fc_flag & FC_FABRIC)
1938                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1939                         else
1940                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1941                 }
1942         } else
1943                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1944
1945         spin_unlock_irq(shost->host_lock);
1946 }
1947
1948 static void
1949 lpfc_get_host_port_state(struct Scsi_Host *shost)
1950 {
1951         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1952         struct lpfc_hba   *phba = vport->phba;
1953
1954         spin_lock_irq(shost->host_lock);
1955
1956         if (vport->fc_flag & FC_OFFLINE_MODE)
1957                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1958         else {
1959                 switch (phba->link_state) {
1960                 case LPFC_LINK_UNKNOWN:
1961                 case LPFC_LINK_DOWN:
1962                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1963                         break;
1964                 case LPFC_LINK_UP:
1965                 case LPFC_CLEAR_LA:
1966                 case LPFC_HBA_READY:
1967                         /* Links up, beyond this port_type reports state */
1968                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1969                         break;
1970                 case LPFC_HBA_ERROR:
1971                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1972                         break;
1973                 default:
1974                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1975                         break;
1976                 }
1977         }
1978
1979         spin_unlock_irq(shost->host_lock);
1980 }
1981
1982 static void
1983 lpfc_get_host_speed(struct Scsi_Host *shost)
1984 {
1985         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1986         struct lpfc_hba   *phba = vport->phba;
1987
1988         spin_lock_irq(shost->host_lock);
1989
1990         if (lpfc_is_link_up(phba)) {
1991                 switch(phba->fc_linkspeed) {
1992                         case LA_1GHZ_LINK:
1993                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1994                         break;
1995                         case LA_2GHZ_LINK:
1996                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1997                         break;
1998                         case LA_4GHZ_LINK:
1999                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
2000                         break;
2001                         case LA_8GHZ_LINK:
2002                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2003                         break;
2004                         default:
2005                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2006                         break;
2007                 }
2008         }
2009
2010         spin_unlock_irq(shost->host_lock);
2011 }
2012
2013 static void
2014 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2015 {
2016         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2017         struct lpfc_hba   *phba = vport->phba;
2018         u64 node_name;
2019
2020         spin_lock_irq(shost->host_lock);
2021
2022         if ((vport->fc_flag & FC_FABRIC) ||
2023             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2024              (vport->fc_flag & FC_PUBLIC_LOOP)))
2025                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2026         else
2027                 /* fabric is local port if there is no F/FL_Port */
2028                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2029
2030         spin_unlock_irq(shost->host_lock);
2031
2032         fc_host_fabric_name(shost) = node_name;
2033 }
2034
2035 static struct fc_host_statistics *
2036 lpfc_get_stats(struct Scsi_Host *shost)
2037 {
2038         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2039         struct lpfc_hba   *phba = vport->phba;
2040         struct lpfc_sli   *psli = &phba->sli;
2041         struct fc_host_statistics *hs = &phba->link_stats;
2042         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2043         LPFC_MBOXQ_t *pmboxq;
2044         MAILBOX_t *pmb;
2045         unsigned long seconds;
2046         int rc = 0;
2047
2048         /*
2049          * prevent udev from issuing mailbox commands until the port is
2050          * configured.
2051          */
2052         if (phba->link_state < LPFC_LINK_DOWN ||
2053             !phba->mbox_mem_pool ||
2054             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2055                 return NULL;
2056
2057         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2058                 return NULL;
2059
2060         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2061         if (!pmboxq)
2062                 return NULL;
2063         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2064
2065         pmb = &pmboxq->mb;
2066         pmb->mbxCommand = MBX_READ_STATUS;
2067         pmb->mbxOwner = OWN_HOST;
2068         pmboxq->context1 = NULL;
2069         pmboxq->vport = vport;
2070
2071         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2072                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2073                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2074         else
2075                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2076
2077         if (rc != MBX_SUCCESS) {
2078                 if (rc != MBX_TIMEOUT)
2079                         mempool_free(pmboxq, phba->mbox_mem_pool);
2080                 return NULL;
2081         }
2082
2083         memset(hs, 0, sizeof (struct fc_host_statistics));
2084
2085         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2086         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2087         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2088         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2089
2090         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2091         pmb->mbxCommand = MBX_READ_LNK_STAT;
2092         pmb->mbxOwner = OWN_HOST;
2093         pmboxq->context1 = NULL;
2094         pmboxq->vport = vport;
2095
2096         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2097             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2098                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2099         else
2100                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2101
2102         if (rc != MBX_SUCCESS) {
2103                 if (rc != MBX_TIMEOUT)
2104                         mempool_free(pmboxq, phba->mbox_mem_pool);
2105                 return NULL;
2106         }
2107
2108         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2109         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2110         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2111         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2112         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2113         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2114         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2115
2116         hs->link_failure_count -= lso->link_failure_count;
2117         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2118         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2119         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2120         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2121         hs->invalid_crc_count -= lso->invalid_crc_count;
2122         hs->error_frames -= lso->error_frames;
2123
2124         if (phba->fc_topology == TOPOLOGY_LOOP) {
2125                 hs->lip_count = (phba->fc_eventTag >> 1);
2126                 hs->lip_count -= lso->link_events;
2127                 hs->nos_count = -1;
2128         } else {
2129                 hs->lip_count = -1;
2130                 hs->nos_count = (phba->fc_eventTag >> 1);
2131                 hs->nos_count -= lso->link_events;
2132         }
2133
2134         hs->dumped_frames = -1;
2135
2136         seconds = get_seconds();
2137         if (seconds < psli->stats_start)
2138                 hs->seconds_since_last_reset = seconds +
2139                                 ((unsigned long)-1 - psli->stats_start);
2140         else
2141                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2142
2143         mempool_free(pmboxq, phba->mbox_mem_pool);
2144
2145         return hs;
2146 }
2147
2148 static void
2149 lpfc_reset_stats(struct Scsi_Host *shost)
2150 {
2151         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2152         struct lpfc_hba   *phba = vport->phba;
2153         struct lpfc_sli   *psli = &phba->sli;
2154         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2155         LPFC_MBOXQ_t *pmboxq;
2156         MAILBOX_t *pmb;
2157         int rc = 0;
2158
2159         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2160                 return;
2161
2162         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2163         if (!pmboxq)
2164                 return;
2165         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2166
2167         pmb = &pmboxq->mb;
2168         pmb->mbxCommand = MBX_READ_STATUS;
2169         pmb->mbxOwner = OWN_HOST;
2170         pmb->un.varWords[0] = 0x1; /* reset request */
2171         pmboxq->context1 = NULL;
2172         pmboxq->vport = vport;
2173
2174         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2175                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2176                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2177         else
2178                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2179
2180         if (rc != MBX_SUCCESS) {
2181                 if (rc != MBX_TIMEOUT)
2182                         mempool_free(pmboxq, phba->mbox_mem_pool);
2183                 return;
2184         }
2185
2186         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2187         pmb->mbxCommand = MBX_READ_LNK_STAT;
2188         pmb->mbxOwner = OWN_HOST;
2189         pmboxq->context1 = NULL;
2190         pmboxq->vport = vport;
2191
2192         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2193             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2194                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2195         else
2196                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2197
2198         if (rc != MBX_SUCCESS) {
2199                 if (rc != MBX_TIMEOUT)
2200                         mempool_free( pmboxq, phba->mbox_mem_pool);
2201                 return;
2202         }
2203
2204         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2205         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2206         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2207         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2208         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2209         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2210         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2211         lso->link_events = (phba->fc_eventTag >> 1);
2212
2213         psli->stats_start = get_seconds();
2214
2215         mempool_free(pmboxq, phba->mbox_mem_pool);
2216
2217         return;
2218 }
2219
2220 /*
2221  * The LPFC driver treats linkdown handling as target loss events so there
2222  * are no sysfs handlers for link_down_tmo.
2223  */
2224
2225 static struct lpfc_nodelist *
2226 lpfc_get_node_by_target(struct scsi_target *starget)
2227 {
2228         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2229         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2230         struct lpfc_nodelist *ndlp;
2231
2232         spin_lock_irq(shost->host_lock);
2233         /* Search for this, mapped, target ID */
2234         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2235                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2236                     starget->id == ndlp->nlp_sid) {
2237                         spin_unlock_irq(shost->host_lock);
2238                         return ndlp;
2239                 }
2240         }
2241         spin_unlock_irq(shost->host_lock);
2242         return NULL;
2243 }
2244
2245 static void
2246 lpfc_get_starget_port_id(struct scsi_target *starget)
2247 {
2248         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2249
2250         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2251 }
2252
2253 static void
2254 lpfc_get_starget_node_name(struct scsi_target *starget)
2255 {
2256         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2257
2258         fc_starget_node_name(starget) =
2259                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2260 }
2261
2262 static void
2263 lpfc_get_starget_port_name(struct scsi_target *starget)
2264 {
2265         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2266
2267         fc_starget_port_name(starget) =
2268                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2269 }
2270
2271 static void
2272 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2273 {
2274         if (timeout)
2275                 rport->dev_loss_tmo = timeout;
2276         else
2277                 rport->dev_loss_tmo = 1;
2278 }
2279
2280
2281 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2282 static ssize_t                                                          \
2283 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2284 {                                                                       \
2285         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2286         struct lpfc_rport_data *rdata = rport->hostdata;                \
2287         return snprintf(buf, sz, format_string,                         \
2288                 (rdata->target) ? cast rdata->target->field : 0);       \
2289 }
2290
2291 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2292         lpfc_rport_show_function(field, format_string, sz, )            \
2293 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2294
2295
2296 struct fc_function_template lpfc_transport_functions = {
2297         /* fixed attributes the driver supports */
2298         .show_host_node_name = 1,
2299         .show_host_port_name = 1,
2300         .show_host_supported_classes = 1,
2301         .show_host_supported_fc4s = 1,
2302         .show_host_supported_speeds = 1,
2303         .show_host_maxframe_size = 1,
2304
2305         /* dynamic attributes the driver supports */
2306         .get_host_port_id = lpfc_get_host_port_id,
2307         .show_host_port_id = 1,
2308
2309         .get_host_port_type = lpfc_get_host_port_type,
2310         .show_host_port_type = 1,
2311
2312         .get_host_port_state = lpfc_get_host_port_state,
2313         .show_host_port_state = 1,
2314
2315         /* active_fc4s is shown but doesn't change (thus no get function) */
2316         .show_host_active_fc4s = 1,
2317
2318         .get_host_speed = lpfc_get_host_speed,
2319         .show_host_speed = 1,
2320
2321         .get_host_fabric_name = lpfc_get_host_fabric_name,
2322         .show_host_fabric_name = 1,
2323
2324         /*
2325          * The LPFC driver treats linkdown handling as target loss events
2326          * so there are no sysfs handlers for link_down_tmo.
2327          */
2328
2329         .get_fc_host_stats = lpfc_get_stats,
2330         .reset_fc_host_stats = lpfc_reset_stats,
2331
2332         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2333         .show_rport_maxframe_size = 1,
2334         .show_rport_supported_classes = 1,
2335
2336         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2337         .show_rport_dev_loss_tmo = 1,
2338
2339         .get_starget_port_id  = lpfc_get_starget_port_id,
2340         .show_starget_port_id = 1,
2341
2342         .get_starget_node_name = lpfc_get_starget_node_name,
2343         .show_starget_node_name = 1,
2344
2345         .get_starget_port_name = lpfc_get_starget_port_name,
2346         .show_starget_port_name = 1,
2347
2348         .issue_fc_host_lip = lpfc_issue_lip,
2349         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2350         .terminate_rport_io = lpfc_terminate_rport_io,
2351
2352         .vport_create = lpfc_vport_create,
2353         .vport_delete = lpfc_vport_delete,
2354         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2355 };
2356
2357 struct fc_function_template lpfc_vport_transport_functions = {
2358         /* fixed attributes the driver supports */
2359         .show_host_node_name = 1,
2360         .show_host_port_name = 1,
2361         .show_host_supported_classes = 1,
2362         .show_host_supported_fc4s = 1,
2363         .show_host_supported_speeds = 1,
2364         .show_host_maxframe_size = 1,
2365
2366         /* dynamic attributes the driver supports */
2367         .get_host_port_id = lpfc_get_host_port_id,
2368         .show_host_port_id = 1,
2369
2370         .get_host_port_type = lpfc_get_host_port_type,
2371         .show_host_port_type = 1,
2372
2373         .get_host_port_state = lpfc_get_host_port_state,
2374         .show_host_port_state = 1,
2375
2376         /* active_fc4s is shown but doesn't change (thus no get function) */
2377         .show_host_active_fc4s = 1,
2378
2379         .get_host_speed = lpfc_get_host_speed,
2380         .show_host_speed = 1,
2381
2382         .get_host_fabric_name = lpfc_get_host_fabric_name,
2383         .show_host_fabric_name = 1,
2384
2385         /*
2386          * The LPFC driver treats linkdown handling as target loss events
2387          * so there are no sysfs handlers for link_down_tmo.
2388          */
2389
2390         .get_fc_host_stats = lpfc_get_stats,
2391         .reset_fc_host_stats = lpfc_reset_stats,
2392
2393         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2394         .show_rport_maxframe_size = 1,
2395         .show_rport_supported_classes = 1,
2396
2397         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2398         .show_rport_dev_loss_tmo = 1,
2399
2400         .get_starget_port_id  = lpfc_get_starget_port_id,
2401         .show_starget_port_id = 1,
2402
2403         .get_starget_node_name = lpfc_get_starget_node_name,
2404         .show_starget_node_name = 1,
2405
2406         .get_starget_port_name = lpfc_get_starget_port_name,
2407         .show_starget_port_name = 1,
2408
2409         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2410         .terminate_rport_io = lpfc_terminate_rport_io,
2411
2412         .vport_disable = lpfc_vport_disable,
2413 };
2414
2415 void
2416 lpfc_get_cfgparam(struct lpfc_hba *phba)
2417 {
2418         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2419         lpfc_cr_count_init(phba, lpfc_cr_count);
2420         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2421         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2422         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2423         lpfc_ack0_init(phba, lpfc_ack0);
2424         lpfc_topology_init(phba, lpfc_topology);
2425         lpfc_link_speed_init(phba, lpfc_link_speed);
2426         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2427         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2428         lpfc_use_msi_init(phba, lpfc_use_msi);
2429         phba->cfg_poll = lpfc_poll;
2430         phba->cfg_soft_wwnn = 0L;
2431         phba->cfg_soft_wwpn = 0L;
2432         /*
2433          * The total number of segments is the configuration value plus 2
2434          * since the IOCB need a command and response bde.
2435          */
2436         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2437         /*
2438          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2439          * used to create the sg_dma_buf_pool must be dynamically calculated
2440          */
2441         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2442                         sizeof(struct fcp_rsp) +
2443                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2444         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2445         return;
2446 }
2447
2448 void
2449 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2450 {
2451         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2452         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2453         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2454         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2455         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2456         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2457         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2458         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2459         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2460         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2461         lpfc_max_luns_init(vport, lpfc_max_luns);
2462         lpfc_scan_down_init(vport, lpfc_scan_down);
2463         return;
2464 }