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 management_version_show(struct class_device *cdev, char *buf)
  72 {
  73         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
  74 }
  75
  76 static ssize_t
  77 lpfc_info_show(struct class_device *cdev, char *buf)
  78 {
  79         struct Scsi_Host *host = class_to_shost(cdev);
  80
  81         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  82 }
  83
  84 static ssize_t
  85 lpfc_serialnum_show(struct class_device *cdev, char *buf)
  86 {
  87         struct Scsi_Host  *shost = class_to_shost(cdev);
  88         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  89         struct lpfc_hba   *phba = vport->phba;
  90
  91         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  92 }
  93
  94 static ssize_t
  95 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  96 {
  97         struct Scsi_Host  *shost = class_to_shost(cdev);
  98         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  99         struct lpfc_hba   *phba = vport->phba;
 100
 101         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
 102 }
 103
 104 static ssize_t
 105 lpfc_modelname_show(struct class_device *cdev, char *buf)
 106 {
 107         struct Scsi_Host  *shost = class_to_shost(cdev);
 108         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 109         struct lpfc_hba   *phba = vport->phba;
 110
 111         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 112 }
 113
 114 static ssize_t
 115 lpfc_programtype_show(struct class_device *cdev, char *buf)
 116 {
 117         struct Scsi_Host  *shost = class_to_shost(cdev);
 118         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 119         struct lpfc_hba   *phba = vport->phba;
 120
 121         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 122 }
 123
 124 static ssize_t
 125 lpfc_vportnum_show(struct class_device *cdev, char *buf)
 126 {
 127         struct Scsi_Host  *shost = class_to_shost(cdev);
 128         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 129         struct lpfc_hba   *phba = vport->phba;
 130
 131         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 132 }
 133
 134 static ssize_t
 135 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 136 {
 137         struct Scsi_Host  *shost = class_to_shost(cdev);
 138         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 139         struct lpfc_hba   *phba = vport->phba;
 140         char fwrev[32];
 141
 142         lpfc_decode_firmware_rev(phba, fwrev, 1);
 143         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 144 }
 145
 146 static ssize_t
 147 lpfc_hdw_show(struct class_device *cdev, char *buf)
 148 {
 149         char hdw[9];
 150         struct Scsi_Host  *shost = class_to_shost(cdev);
 151         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 152         struct lpfc_hba   *phba = vport->phba;
 153         lpfc_vpd_t *vp = &phba->vpd;
 154
 155         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 156         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 157 }
 158 static ssize_t
 159 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 160 {
 161         struct Scsi_Host  *shost = class_to_shost(cdev);
 162         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 163         struct lpfc_hba   *phba = vport->phba;
 164
 165         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 166 }
 167 static ssize_t
 168 lpfc_state_show(struct class_device *cdev, char *buf)
 169 {
 170         struct Scsi_Host  *shost = class_to_shost(cdev);
 171         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 172         struct lpfc_hba   *phba = vport->phba;
 173         int  len = 0;
 174
 175         switch (phba->link_state) {
 176         case LPFC_LINK_UNKNOWN:
 177         case LPFC_WARM_START:
 178         case LPFC_INIT_START:
 179         case LPFC_INIT_MBX_CMDS:
 180         case LPFC_LINK_DOWN:
 181         case LPFC_HBA_ERROR:
 182                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 183                 break;
 184         case LPFC_LINK_UP:
 185         case LPFC_CLEAR_LA:
 186         case LPFC_HBA_READY:
 187                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
 188
 189                 switch (vport->port_state) {
 190                         len += snprintf(buf + len, PAGE_SIZE-len,
 191                                         "initializing\n");
 192                         break;
 193                 case LPFC_LOCAL_CFG_LINK:
 194                         len += snprintf(buf + len, PAGE_SIZE-len,
 195                                         "Configuring Link\n");
 196                         break;
 197                 case LPFC_FDISC:
 198                 case LPFC_FLOGI:
 199                 case LPFC_FABRIC_CFG_LINK:
 200                 case LPFC_NS_REG:
 201                 case LPFC_NS_QRY:
 202                 case LPFC_BUILD_DISC_LIST:
 203                 case LPFC_DISC_AUTH:
 204                         len += snprintf(buf + len, PAGE_SIZE - len,
 205                                         "Discovery\n");
 206                         break;
 207                 case LPFC_VPORT_READY:
 208                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 209                         break;
 210
 211                 case LPFC_VPORT_FAILED:
 212                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 213                         break;
 214
 215                 case LPFC_VPORT_UNKNOWN:
 216                         len += snprintf(buf + len, PAGE_SIZE - len,
 217                                         "Unknown\n");
 218                         break;
 219                 }
 220
 221                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 222                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 223                                 len += snprintf(buf + len, PAGE_SIZE-len,
 224                                                 "   Public Loop\n");
 225                         else
 226                                 len += snprintf(buf + len, PAGE_SIZE-len,
 227                                                 "   Private Loop\n");
 228                 } else {
 229                         if (vport->fc_flag & FC_FABRIC)
 230                                 len += snprintf(buf + len, PAGE_SIZE-len,
 231                                                 "   Fabric\n");
 232                         else
 233                                 len += snprintf(buf + len, PAGE_SIZE-len,
 234                                                 "   Point-2-Point\n");
 235                 }
 236         }
 237
 238         return len;
 239 }
 240
 241 static ssize_t
 242 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 243 {
 244         struct Scsi_Host  *shost = class_to_shost(cdev);
 245         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 246
 247         return snprintf(buf, PAGE_SIZE, "%d\n",
 248                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 249 }
 250
 251
 252 static int
 253 lpfc_issue_lip(struct Scsi_Host *shost)
 254 {
 255         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 256         struct lpfc_hba   *phba = vport->phba;
 257         LPFC_MBOXQ_t *pmboxq;
 258         int mbxstatus = MBXERR_ERROR;
 259
 260         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 261             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
 262             (vport->port_state != LPFC_VPORT_READY))
 263                 return -EPERM;
 264
 265         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 266
 267         if (!pmboxq)
 268                 return -ENOMEM;
 269
 270         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 271         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 272         pmboxq->mb.mbxOwner = OWN_HOST;
 273
 274         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 275
 276         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 277                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 278                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 279                                phba->cfg_link_speed);
 280                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 281                                                      phba->fc_ratov * 2);
 282         }
 283
 284         lpfc_set_loopback_flag(phba);
 285         if (mbxstatus != MBX_TIMEOUT)
 286                 mempool_free(pmboxq, phba->mbox_mem_pool);
 287
 288         if (mbxstatus == MBXERR_ERROR)
 289                 return -EIO;
 290
 291         return 0;
 292 }
 293
 294 static int
 295 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 296 {
 297         struct completion online_compl;
 298         struct lpfc_sli_ring *pring;
 299         struct lpfc_sli *psli;
 300         int status = 0;
 301         int cnt = 0;
 302         int i;
 303
 304         init_completion(&online_compl);
 305         lpfc_workq_post_event(phba, &status, &online_compl,
 306                               LPFC_EVT_OFFLINE_PREP);
 307         wait_for_completion(&online_compl);
 308
 309         if (status != 0)
 310                 return -EIO;
 311
 312         psli = &phba->sli;
 313
 314         for (i = 0; i < psli->num_rings; i++) {
 315                 pring = &psli->ring[i];
 316                 /* The linkdown event takes 30 seconds to timeout. */
 317                 while (pring->txcmplq_cnt) {
 318                         msleep(10);
 319                         if (cnt++ > 3000) {
 320                                 lpfc_printf_log(phba,
 321                                         KERN_WARNING, LOG_INIT,
 322                                         "%d:0466 Outstanding IO when "
 323                                         "bringing Adapter offline\n",
 324                                         phba->brd_no);
 325                                 break;
 326                         }
 327                 }
 328         }
 329
 330         init_completion(&online_compl);
 331         lpfc_workq_post_event(phba, &status, &online_compl, type);
 332         wait_for_completion(&online_compl);
 333
 334         if (status != 0)
 335                 return -EIO;
 336
 337         return 0;
 338 }
 339
 340 static int
 341 lpfc_selective_reset(struct lpfc_hba *phba)
 342 {
 343         struct completion online_compl;
 344         int status = 0;
 345
 346         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 347
 348         if (status != 0)
 349                 return status;
 350
 351         init_completion(&online_compl);
 352         lpfc_workq_post_event(phba, &status, &online_compl,
 353                               LPFC_EVT_ONLINE);
 354         wait_for_completion(&online_compl);
 355
 356         if (status != 0)
 357                 return -EIO;
 358
 359         return 0;
 360 }
 361
 362 static ssize_t
 363 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 364 {
 365         struct Scsi_Host  *shost = class_to_shost(cdev);
 366         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 367         struct lpfc_hba   *phba = vport->phba;
 368
 369         int status = -EINVAL;
 370
 371         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 372                 status = lpfc_selective_reset(phba);
 373
 374         if (status == 0)
 375                 return strlen(buf);
 376         else
 377                 return status;
 378 }
 379
 380 static ssize_t
 381 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 382 {
 383         struct Scsi_Host  *shost = class_to_shost(cdev);
 384         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 385         struct lpfc_hba   *phba = vport->phba;
 386
 387         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 388 }
 389
 390 static ssize_t
 391 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 392 {
 393         struct Scsi_Host  *shost = class_to_shost(cdev);
 394         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 395         struct lpfc_hba   *phba = vport->phba;
 396         char  * state;
 397
 398         if (phba->link_state == LPFC_HBA_ERROR)
 399                 state = "error";
 400         else if (phba->link_state == LPFC_WARM_START)
 401                 state = "warm start";
 402         else if (phba->link_state == LPFC_INIT_START)
 403                 state = "offline";
 404         else
 405                 state = "online";
 406
 407         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 408 }
 409
 410 static ssize_t
 411 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 412 {
 413         struct Scsi_Host  *shost = class_to_shost(cdev);
 414         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 415         struct lpfc_hba   *phba = vport->phba;
 416         struct completion online_compl;
 417         int status=0;
 418
 419         init_completion(&online_compl);
 420
 421         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 422                 lpfc_workq_post_event(phba, &status, &online_compl,
 423                                       LPFC_EVT_ONLINE);
 424                 wait_for_completion(&online_compl);
 425         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 426                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 427         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 428                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 429         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 430                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 431         else
 432                 return -EINVAL;
 433
 434         if (!status)
 435                 return strlen(buf);
 436         else
 437                 return -EIO;
 438 }
 439
 440 int
 441 lpfc_get_hba_info(struct lpfc_hba *phba,
 442                   uint32_t *mxri, uint32_t *axri,
 443                   uint32_t *mrpi, uint32_t *arpi,
 444                   uint32_t *mvpi, uint32_t *avpi)
 445 {
 446         struct lpfc_sli   *psli = &phba->sli;
 447         LPFC_MBOXQ_t *pmboxq;
 448         MAILBOX_t *pmb;
 449         int rc = 0;
 450
 451         /*
 452          * prevent udev from issuing mailbox commands until the port is
 453          * configured.
 454          */
 455         if (phba->link_state < LPFC_LINK_DOWN ||
 456             !phba->mbox_mem_pool ||
 457             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 458                 return 0;
 459
 460         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 461                 return 0;
 462
 463         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 464         if (!pmboxq)
 465                 return 0;
 466         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 467
 468         pmb = &pmboxq->mb;
 469         pmb->mbxCommand = MBX_READ_CONFIG;
 470         pmb->mbxOwner = OWN_HOST;
 471         pmboxq->context1 = NULL;
 472
 473         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 474                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 475                 rc = MBX_NOT_FINISHED;
 476         else
 477                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 478
 479         if (rc != MBX_SUCCESS) {
 480                 if (rc != MBX_TIMEOUT)
 481                         mempool_free(pmboxq, phba->mbox_mem_pool);
 482                 return 0;
 483         }
 484
 485         if (mrpi)
 486                 *mrpi = pmb->un.varRdConfig.max_rpi;
 487         if (arpi)
 488                 *arpi = pmb->un.varRdConfig.avail_rpi;
 489         if (mxri)
 490                 *mxri = pmb->un.varRdConfig.max_xri;
 491         if (axri)
 492                 *axri = pmb->un.varRdConfig.avail_xri;
 493         if (mvpi)
 494                 *mvpi = pmb->un.varRdConfig.max_vpi;
 495         if (avpi)
 496                 *avpi = pmb->un.varRdConfig.avail_vpi;
 497
 498         mempool_free(pmboxq, phba->mbox_mem_pool);
 499         return 1;
 500 }
 501
 502 static ssize_t
 503 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
 504 {
 505         struct Scsi_Host  *shost = class_to_shost(cdev);
 506         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 507         struct lpfc_hba   *phba = vport->phba;
 508         uint32_t cnt;
 509
 510         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 511                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 512         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 513 }
 514
 515 static ssize_t
 516 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
 517 {
 518         struct Scsi_Host  *shost = class_to_shost(cdev);
 519         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 520         struct lpfc_hba   *phba = vport->phba;
 521         uint32_t cnt, acnt;
 522
 523         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 524                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 525         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 526 }
 527
 528 static ssize_t
 529 lpfc_max_xri_show(struct class_device *cdev, char *buf)
 530 {
 531         struct Scsi_Host  *shost = class_to_shost(cdev);
 532         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 533         struct lpfc_hba   *phba = vport->phba;
 534         uint32_t cnt;
 535
 536         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
 537                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 538         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 539 }
 540
 541 static ssize_t
 542 lpfc_used_xri_show(struct class_device *cdev, char *buf)
 543 {
 544         struct Scsi_Host  *shost = class_to_shost(cdev);
 545         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 546         struct lpfc_hba   *phba = vport->phba;
 547         uint32_t cnt, acnt;
 548
 549         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 550                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 551         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 552 }
 553
 554 static ssize_t
 555 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
 556 {
 557         struct Scsi_Host  *shost = class_to_shost(cdev);
 558         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 559         struct lpfc_hba   *phba = vport->phba;
 560         uint32_t cnt;
 561
 562         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 563                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 564         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 565 }
 566
 567 static ssize_t
 568 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
 569 {
 570         struct Scsi_Host  *shost = class_to_shost(cdev);
 571         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 572         struct lpfc_hba   *phba = vport->phba;
 573         uint32_t cnt, acnt;
 574
 575         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 576                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 577         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 578 }
 579
 580 static ssize_t
 581 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
 582 {
 583         struct Scsi_Host  *shost = class_to_shost(cdev);
 584         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 585         struct lpfc_hba   *phba = vport->phba;
 586
 587         if (!(phba->max_vpi))
 588                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 589         if (vport->port_type == LPFC_PHYSICAL_PORT)
 590                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 591         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 592 }
 593
 594 static ssize_t
 595 lpfc_poll_show(struct class_device *cdev, char *buf)
 596 {
 597         struct Scsi_Host  *shost = class_to_shost(cdev);
 598         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 599         struct lpfc_hba   *phba = vport->phba;
 600
 601         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 602 }
 603
 604 static ssize_t
 605 lpfc_poll_store(struct class_device *cdev, const char *buf,
 606                 size_t count)
 607 {
 608         struct Scsi_Host  *shost = class_to_shost(cdev);
 609         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 610         struct lpfc_hba   *phba = vport->phba;
 611         uint32_t creg_val;
 612         uint32_t old_val;
 613         int val=0;
 614
 615         if (!isdigit(buf[0]))
 616                 return -EINVAL;
 617
 618         if (sscanf(buf, "%i", &val) != 1)
 619                 return -EINVAL;
 620
 621         if ((val & 0x3) != val)
 622                 return -EINVAL;
 623
 624         spin_lock_irq(&phba->hbalock);
 625
 626         old_val = phba->cfg_poll;
 627
 628         if (val & ENABLE_FCP_RING_POLLING) {
 629                 if ((val & DISABLE_FCP_RING_INT) &&
 630                     !(old_val & DISABLE_FCP_RING_INT)) {
 631                         creg_val = readl(phba->HCregaddr);
 632                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 633                         writel(creg_val, phba->HCregaddr);
 634                         readl(phba->HCregaddr); /* flush */
 635
 636                         lpfc_poll_start_timer(phba);
 637                 }
 638         } else if (val != 0x0) {
 639                 spin_unlock_irq(&phba->hbalock);
 640                 return -EINVAL;
 641         }
 642
 643         if (!(val & DISABLE_FCP_RING_INT) &&
 644             (old_val & DISABLE_FCP_RING_INT))
 645         {
 646                 spin_unlock_irq(&phba->hbalock);
 647                 del_timer(&phba->fcp_poll_timer);
 648                 spin_lock_irq(&phba->hbalock);
 649                 creg_val = readl(phba->HCregaddr);
 650                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 651                 writel(creg_val, phba->HCregaddr);
 652                 readl(phba->HCregaddr); /* flush */
 653         }
 654
 655         phba->cfg_poll = val;
 656
 657         spin_unlock_irq(&phba->hbalock);
 658
 659         return strlen(buf);
 660 }
 661
 662 #define lpfc_param_show(attr)   \
 663 static ssize_t \
 664 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 665 { \
 666         struct Scsi_Host  *shost = class_to_shost(cdev);\
 667         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 668         struct lpfc_hba   *phba = vport->phba;\
 669         int val = 0;\
 670         val = phba->cfg_##attr;\
 671         return snprintf(buf, PAGE_SIZE, "%d\n",\
 672                         phba->cfg_##attr);\
 673 }
 674
 675 #define lpfc_param_hex_show(attr)       \
 676 static ssize_t \
 677 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 678 { \
 679         struct Scsi_Host  *shost = class_to_shost(cdev);\
 680         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 681         struct lpfc_hba   *phba = vport->phba;\
 682         int val = 0;\
 683         val = phba->cfg_##attr;\
 684         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 685                         phba->cfg_##attr);\
 686 }
 687
 688 #define lpfc_param_init(attr, default, minval, maxval)  \
 689 static int \
 690 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 691 { \
 692         if (val >= minval && val <= maxval) {\
 693                 phba->cfg_##attr = val;\
 694                 return 0;\
 695         }\
 696         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 697                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 698                         "allowed range is ["#minval", "#maxval"]\n", \
 699                         phba->brd_no, val); \
 700         phba->cfg_##attr = default;\
 701         return -EINVAL;\
 702 }
 703
 704 #define lpfc_param_set(attr, default, minval, maxval)   \
 705 static int \
 706 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 707 { \
 708         if (val >= minval && val <= maxval) {\
 709                 phba->cfg_##attr = val;\
 710                 return 0;\
 711         }\
 712         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 713                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 714                         "allowed range is ["#minval", "#maxval"]\n", \
 715                         phba->brd_no, 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_log(vport->phba, KERN_ERR, LOG_INIT, \
 768                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 769                         "allowed range is ["#minval", "#maxval"]\n", \
 770                         vport->phba->brd_no, val); \
 771         vport->cfg_##attr = default;\
 772         return -EINVAL;\
 773 }
 774
 775 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 776 static int \
 777 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 778 { \
 779         if (val >= minval && val <= maxval) {\
 780                 vport->cfg_##attr = val;\
 781                 return 0;\
 782         }\
 783         lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT, \
 784                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 785                         "allowed range is ["#minval", "#maxval"]\n", \
 786                         vport->phba->brd_no, val); \
 787         return -EINVAL;\
 788 }
 789
 790 #define lpfc_vport_param_store(attr)    \
 791 static ssize_t \
 792 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 793 { \
 794         struct Scsi_Host  *shost = class_to_shost(cdev);\
 795         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 796         int val=0;\
 797         if (!isdigit(buf[0]))\
 798                 return -EINVAL;\
 799         if (sscanf(buf, "%i", &val) != 1)\
 800                 return -EINVAL;\
 801         if (lpfc_##attr##_set(vport, val) == 0) \
 802                 return strlen(buf);\
 803         else \
 804                 return -EINVAL;\
 805 }
 806
 807
 808 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 809 static int lpfc_##name = defval;\
 810 module_param(lpfc_##name, int, 0);\
 811 MODULE_PARM_DESC(lpfc_##name, desc);\
 812 lpfc_param_init(name, defval, minval, maxval)
 813
 814 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 815 static int lpfc_##name = defval;\
 816 module_param(lpfc_##name, int, 0);\
 817 MODULE_PARM_DESC(lpfc_##name, desc);\
 818 lpfc_param_show(name)\
 819 lpfc_param_init(name, defval, minval, maxval)\
 820 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 821
 822 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 823 static int lpfc_##name = defval;\
 824 module_param(lpfc_##name, int, 0);\
 825 MODULE_PARM_DESC(lpfc_##name, desc);\
 826 lpfc_param_show(name)\
 827 lpfc_param_init(name, defval, minval, maxval)\
 828 lpfc_param_set(name, defval, minval, maxval)\
 829 lpfc_param_store(name)\
 830 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 831                          lpfc_##name##_show, lpfc_##name##_store)
 832
 833 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 834 static int lpfc_##name = defval;\
 835 module_param(lpfc_##name, int, 0);\
 836 MODULE_PARM_DESC(lpfc_##name, desc);\
 837 lpfc_param_hex_show(name)\
 838 lpfc_param_init(name, defval, minval, maxval)\
 839 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 840
 841 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 842 static int lpfc_##name = defval;\
 843 module_param(lpfc_##name, int, 0);\
 844 MODULE_PARM_DESC(lpfc_##name, desc);\
 845 lpfc_param_hex_show(name)\
 846 lpfc_param_init(name, defval, minval, maxval)\
 847 lpfc_param_set(name, defval, minval, maxval)\
 848 lpfc_param_store(name)\
 849 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 850                          lpfc_##name##_show, lpfc_##name##_store)
 851
 852 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 853 static int lpfc_##name = defval;\
 854 module_param(lpfc_##name, int, 0);\
 855 MODULE_PARM_DESC(lpfc_##name, desc);\
 856 lpfc_vport_param_init(name, defval, minval, maxval)
 857
 858 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 859 static int lpfc_##name = defval;\
 860 module_param(lpfc_##name, int, 0);\
 861 MODULE_PARM_DESC(lpfc_##name, desc);\
 862 lpfc_vport_param_show(name)\
 863 lpfc_vport_param_init(name, defval, minval, maxval)\
 864 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 865
 866 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 867 static int lpfc_##name = defval;\
 868 module_param(lpfc_##name, int, 0);\
 869 MODULE_PARM_DESC(lpfc_##name, desc);\
 870 lpfc_vport_param_show(name)\
 871 lpfc_vport_param_init(name, defval, minval, maxval)\
 872 lpfc_vport_param_set(name, defval, minval, maxval)\
 873 lpfc_vport_param_store(name)\
 874 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 875                          lpfc_##name##_show, lpfc_##name##_store)
 876
 877 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 878 static int lpfc_##name = defval;\
 879 module_param(lpfc_##name, int, 0);\
 880 MODULE_PARM_DESC(lpfc_##name, desc);\
 881 lpfc_vport_param_hex_show(name)\
 882 lpfc_vport_param_init(name, defval, minval, maxval)\
 883 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 884
 885 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 886 static int lpfc_##name = defval;\
 887 module_param(lpfc_##name, int, 0);\
 888 MODULE_PARM_DESC(lpfc_##name, desc);\
 889 lpfc_vport_param_hex_show(name)\
 890 lpfc_vport_param_init(name, defval, minval, maxval)\
 891 lpfc_vport_param_set(name, defval, minval, maxval)\
 892 lpfc_vport_param_store(name)\
 893 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 894                          lpfc_##name##_show, lpfc_##name##_store)
 895
 896 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 897 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 898 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 899 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 900 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 901 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 902 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 903 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 904 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 905 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 906                                         lpfc_option_rom_version_show, NULL);
 907 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 908                                         lpfc_num_discovered_ports_show, NULL);
 909 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 910 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 911                          NULL);
 912 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 913                          NULL);
 914 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 915                          lpfc_board_mode_show, lpfc_board_mode_store);
 916 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 917 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 918 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 919 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 920 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 921 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 922 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 923 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 924
 925
 926 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 927
 928 static ssize_t
 929 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 930                                 size_t count)
 931 {
 932         struct Scsi_Host  *shost = class_to_shost(cdev);
 933         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 934         struct lpfc_hba   *phba = vport->phba;
 935         unsigned int cnt = count;
 936
 937         /*
 938          * We're doing a simple sanity check for soft_wwpn setting.
 939          * We require that the user write a specific key to enable
 940          * the soft_wwpn attribute to be settable. Once the attribute
 941          * is written, the enable key resets. If further updates are
 942          * desired, the key must be written again to re-enable the
 943          * attribute.
 944          *
 945          * The "key" is not secret - it is a hardcoded string shown
 946          * here. The intent is to protect against the random user or
 947          * application that is just writing attributes.
 948          */
 949
 950         /* count may include a LF at end of string */
 951         if (buf[cnt-1] == '\n')
 952                 cnt--;
 953
 954         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 955             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 956                 return -EINVAL;
 957
 958         phba->soft_wwn_enable = 1;
 959         return count;
 960 }
 961 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 962                                 lpfc_soft_wwn_enable_store);
 963
 964 static ssize_t
 965 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 966 {
 967         struct Scsi_Host  *shost = class_to_shost(cdev);
 968         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 969         struct lpfc_hba   *phba = vport->phba;
 970
 971         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 972                         (unsigned long long)phba->cfg_soft_wwpn);
 973 }
 974
 975
 976 static ssize_t
 977 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 978 {
 979         struct Scsi_Host  *shost = class_to_shost(cdev);
 980         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 981         struct lpfc_hba   *phba = vport->phba;
 982         struct completion online_compl;
 983         int stat1=0, stat2=0;
 984         unsigned int i, j, cnt=count;
 985         u8 wwpn[8];
 986
 987         /* count may include a LF at end of string */
 988         if (buf[cnt-1] == '\n')
 989                 cnt--;
 990
 991         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 992             ((cnt == 17) && (*buf++ != 'x')) ||
 993             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 994                 return -EINVAL;
 995
 996         phba->soft_wwn_enable = 0;
 997
 998         memset(wwpn, 0, sizeof(wwpn));
 999
1000         /* Validate and store the new name */
1001         for (i=0, j=0; i < 16; i++) {
1002                 if ((*buf >= 'a') && (*buf <= 'f'))
1003                         j = ((j << 4) | ((*buf++ -'a') + 10));
1004                 else if ((*buf >= 'A') && (*buf <= 'F'))
1005                         j = ((j << 4) | ((*buf++ -'A') + 10));
1006                 else if ((*buf >= '0') && (*buf <= '9'))
1007                         j = ((j << 4) | (*buf++ -'0'));
1008                 else
1009                         return -EINVAL;
1010                 if (i % 2) {
1011                         wwpn[i/2] = j & 0xff;
1012                         j = 0;
1013                 }
1014         }
1015         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1016         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1017         if (phba->cfg_soft_wwnn)
1018                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1019
1020         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1021                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1022
1023         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1024         if (stat1)
1025                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1026                         "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
1027                         "adapter - %d\n", phba->brd_no, stat1);
1028
1029         init_completion(&online_compl);
1030         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1031         wait_for_completion(&online_compl);
1032         if (stat2)
1033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1034                         "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
1035                         "adapter - %d\n", phba->brd_no, stat2);
1036
1037         return (stat1 || stat2) ? -EIO : count;
1038 }
1039 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1040                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1041
1042 static ssize_t
1043 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1044 {
1045         struct Scsi_Host *host = class_to_shost(cdev);
1046         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1047         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1048                         (unsigned long long)phba->cfg_soft_wwnn);
1049 }
1050
1051
1052 static ssize_t
1053 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1054 {
1055         struct Scsi_Host *host = class_to_shost(cdev);
1056         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1057         unsigned int i, j, cnt=count;
1058         u8 wwnn[8];
1059
1060         /* count may include a LF at end of string */
1061         if (buf[cnt-1] == '\n')
1062                 cnt--;
1063
1064         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1065             ((cnt == 17) && (*buf++ != 'x')) ||
1066             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1067                 return -EINVAL;
1068
1069         /*
1070          * Allow wwnn to be set many times, as long as the enable is set.
1071          * However, once the wwpn is set, everything locks.
1072          */
1073
1074         memset(wwnn, 0, sizeof(wwnn));
1075
1076         /* Validate and store the new name */
1077         for (i=0, j=0; i < 16; i++) {
1078                 if ((*buf >= 'a') && (*buf <= 'f'))
1079                         j = ((j << 4) | ((*buf++ -'a') + 10));
1080                 else if ((*buf >= 'A') && (*buf <= 'F'))
1081                         j = ((j << 4) | ((*buf++ -'A') + 10));
1082                 else if ((*buf >= '0') && (*buf <= '9'))
1083                         j = ((j << 4) | (*buf++ -'0'));
1084                 else
1085                         return -EINVAL;
1086                 if (i % 2) {
1087                         wwnn[i/2] = j & 0xff;
1088                         j = 0;
1089                 }
1090         }
1091         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1092
1093         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1094                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1095                    "setting of the soft_wwpn\n", phba->brd_no);
1096
1097         return count;
1098 }
1099 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1100                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1101
1102
1103 static int lpfc_poll = 0;
1104 module_param(lpfc_poll, int, 0);
1105 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1106                  " 0 - none,"
1107                  " 1 - poll with interrupts enabled"
1108                  " 3 - poll and disable FCP ring interrupts");
1109
1110 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1111                          lpfc_poll_show, lpfc_poll_store);
1112
1113 int  lpfc_sli_mode = 0;
1114 module_param(lpfc_sli_mode, int, 0);
1115 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1116                  " 0 - auto (SLI-3 if supported),"
1117                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1118                  " 3 - select SLI-3");
1119
1120 LPFC_ATTR_R(npiv_enable, 0, 0, 1, "Enable NPIV functionality");
1121
1122 /*
1123 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1124 # until the timer expires. Value range is [0,255]. Default value is 30.
1125 */
1126 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1127 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1128 module_param(lpfc_nodev_tmo, int, 0);
1129 MODULE_PARM_DESC(lpfc_nodev_tmo,
1130                  "Seconds driver will hold I/O waiting "
1131                  "for a device to come back");
1132 static ssize_t
1133 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1134 {
1135         struct Scsi_Host  *shost = class_to_shost(cdev);
1136         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1137         int val = 0;
1138         val = vport->cfg_devloss_tmo;
1139         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1140 }
1141
1142 static int
1143 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1144 {
1145         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1146                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1147                 if (val != LPFC_DEF_DEVLOSS_TMO)
1148                         lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1149                                         "%d (%d):0402 Ignoring nodev_tmo module"
1150                                         " parameter because devloss_tmo is"
1151                                         " set.\n",
1152                                         vport->phba->brd_no, vport->vpi);
1153                 return 0;
1154         }
1155
1156         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1157                 vport->cfg_nodev_tmo = val;
1158                 vport->cfg_devloss_tmo = val;
1159                 return 0;
1160         }
1161         lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1162                         "%d (%d):0400 lpfc_nodev_tmo attribute cannot be set to"
1163                         " %d, allowed range is [%d, %d]\n",
1164                         vport->phba->brd_no, vport->vpi, val,
1165                         LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1166         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1167         return -EINVAL;
1168 }
1169
1170 static void
1171 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1172 {
1173         struct lpfc_vport **vports;
1174         struct Scsi_Host  *shost;
1175         struct lpfc_nodelist  *ndlp;
1176         int i;
1177
1178         vports = lpfc_create_vport_work_array(vport->phba);
1179         if (vports != NULL)
1180                 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) {
1181                         shost = lpfc_shost_from_vport(vports[i]);
1182                         spin_lock_irq(shost->host_lock);
1183                         list_for_each_entry(ndlp, &vports[i]->fc_nodes,
1184                                             nlp_listp)
1185                         if (ndlp->rport)
1186                                 ndlp->rport->dev_loss_tmo =
1187                                                 vport->cfg_devloss_tmo;
1188                         spin_unlock_irq(shost->host_lock);
1189                 }
1190         lpfc_destroy_vport_work_array(vports);
1191 }
1192
1193 static int
1194 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1195 {
1196         if (vport->dev_loss_tmo_changed ||
1197             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1198                 lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1199                                 "%d (%d):0401 Ignoring change to nodev_tmo "
1200                                 "because devloss_tmo is set.\n",
1201                                 vport->phba->brd_no, vport->vpi);
1202                 return 0;
1203         }
1204         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1205                 vport->cfg_nodev_tmo = val;
1206                 vport->cfg_devloss_tmo = val;
1207                 lpfc_update_rport_devloss_tmo(vport);
1208                 return 0;
1209         }
1210         lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1211                         "%d (%d):0403 lpfc_nodev_tmo attribute cannot be set to"
1212                         "%d, allowed range is [%d, %d]\n",
1213                         vport->phba->brd_no, vport->vpi, val,
1214                         LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1215         return -EINVAL;
1216 }
1217
1218 lpfc_vport_param_store(nodev_tmo)
1219
1220 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1221                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1222
1223 /*
1224 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1225 # disappear until the timer expires. Value range is [0,255]. Default
1226 # value is 30.
1227 */
1228 module_param(lpfc_devloss_tmo, int, 0);
1229 MODULE_PARM_DESC(lpfc_devloss_tmo,
1230                  "Seconds driver will hold I/O waiting "
1231                  "for a device to come back");
1232 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1233                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1234 lpfc_vport_param_show(devloss_tmo)
1235 static int
1236 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1237 {
1238         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1239                 vport->cfg_nodev_tmo = val;
1240                 vport->cfg_devloss_tmo = val;
1241                 vport->dev_loss_tmo_changed = 1;
1242                 lpfc_update_rport_devloss_tmo(vport);
1243                 return 0;
1244         }
1245
1246         lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1247                         "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
1248                         " %d, allowed range is [%d, %d]\n",
1249                         vport->phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
1250                         LPFC_MAX_DEVLOSS_TMO);
1251         return -EINVAL;
1252 }
1253
1254 lpfc_vport_param_store(devloss_tmo)
1255 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1256         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1257
1258 /*
1259 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1260 # deluged with LOTS of information.
1261 # You can set a bit mask to record specific types of verbose messages:
1262 #
1263 # LOG_ELS                       0x1        ELS events
1264 # LOG_DISCOVERY                 0x2        Link discovery events
1265 # LOG_MBOX                      0x4        Mailbox events
1266 # LOG_INIT                      0x8        Initialization events
1267 # LOG_LINK_EVENT                0x10       Link events
1268 # LOG_FCP                       0x40       FCP traffic history
1269 # LOG_NODE                      0x80       Node table events
1270 # LOG_MISC                      0x400      Miscellaneous events
1271 # LOG_SLI                       0x800      SLI events
1272 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1273 # LOG_LIBDFC                    0x2000     LIBDFC events
1274 # LOG_ALL_MSG                   0xffff     LOG all messages
1275 */
1276 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
1277
1278 /*
1279 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1280 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1281 */
1282 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1283                   "Max number of FCP commands we can queue to a specific LUN");
1284
1285 /*
1286 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1287 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1288 # value is greater than the maximum number of exchanges supported by the HBA,
1289 # then maximum number of exchanges supported by the HBA is used to determine
1290 # the hba_queue_depth.
1291 */
1292 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1293             "Max number of FCP commands we can queue to a lpfc HBA");
1294
1295 /*
1296 # peer_port_login:  This parameter allows/prevents logins
1297 # between peer ports hosted on the same physical port.
1298 # When this parameter is set 0 peer ports of same physical port
1299 # are not allowed to login to each other.
1300 # When this parameter is set 1 peer ports of same physical port
1301 # are allowed to login to each other.
1302 # Default value of this parameter is 0.
1303 */
1304 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1305                   "Allow peer ports on the same physical port to login to each "
1306                   "other.");
1307
1308 /*
1309 # restrict_login:  This parameter allows/prevents logins
1310 # between Virtual Ports and remote initiators.
1311 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1312 # other initiators and will attempt to PLOGI all remote ports.
1313 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1314 # remote ports and will not attempt to PLOGI to other initiators.
1315 # This parameter does not restrict to the physical port.
1316 # This parameter does not restrict logins to Fabric resident remote ports.
1317 # Default value of this parameter is 1.
1318 */
1319 static int lpfc_restrict_login = 1;
1320 module_param(lpfc_restrict_login, int, 0);
1321 MODULE_PARM_DESC(lpfc_restrict_login,
1322                  "Restrict virtual ports login to remote initiators.");
1323 lpfc_vport_param_show(restrict_login);
1324
1325 static int
1326 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1327 {
1328         if (val < 0 || val > 1) {
1329                 lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1330                                 "%d:0449 lpfc_restrict_login attribute cannot "
1331                                 "be set to %d, allowed range is [0, 1]\n",
1332                                 vport->phba->brd_no, val);
1333                 vport->cfg_restrict_login = 1;
1334                 return -EINVAL;
1335         }
1336         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1337                 vport->cfg_restrict_login = 0;
1338                 return 0;
1339         }
1340         vport->cfg_restrict_login = val;
1341         return 0;
1342 }
1343
1344 static int
1345 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1346 {
1347         if (val < 0 || val > 1) {
1348                 lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1349                                 "%d:0450 lpfc_restrict_login attribute cannot "
1350                                 "be set to %d, allowed range is [0, 1]\n",
1351                                 vport->phba->brd_no, val);
1352                 vport->cfg_restrict_login = 1;
1353                 return -EINVAL;
1354         }
1355         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1356                 lpfc_printf_log(vport->phba, KERN_ERR, LOG_INIT,
1357                                 "%d:0468 lpfc_restrict_login must be 0 for "
1358                                 "Physical ports.\n",
1359                                 vport->phba->brd_no);
1360                 vport->cfg_restrict_login = 0;
1361                 return 0;
1362         }
1363         vport->cfg_restrict_login = val;
1364         return 0;
1365 }
1366 lpfc_vport_param_store(restrict_login);
1367 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1368                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1369
1370 /*
1371 # Some disk devices have a "select ID" or "select Target" capability.
1372 # From a protocol standpoint "select ID" usually means select the
1373 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1374 # annex" which contains a table that maps a "select ID" (a number
1375 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1376 # older drivers, the lpfc driver scans this table from low ALPA to high
1377 # ALPA.
1378 #
1379 # Turning on the scan-down variable (on  = 1, off = 0) will
1380 # cause the lpfc driver to use an inverted table, effectively
1381 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1382 #
1383 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1384 # and will not work across a fabric. Also this parameter will take
1385 # effect only in the case when ALPA map is not available.)
1386 */
1387 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1388                   "Start scanning for devices from highest ALPA to lowest");
1389
1390 /*
1391 # lpfc_topology:  link topology for init link
1392 #            0x0  = attempt loop mode then point-to-point
1393 #            0x01 = internal loopback mode
1394 #            0x02 = attempt point-to-point mode only
1395 #            0x04 = attempt loop mode only
1396 #            0x06 = attempt point-to-point mode then loop
1397 # Set point-to-point mode if you want to run as an N_Port.
1398 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1399 # Default value is 0.
1400 */
1401 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1402
1403 /*
1404 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1405 # connection.
1406 #       0  = auto select (default)
1407 #       1  = 1 Gigabaud
1408 #       2  = 2 Gigabaud
1409 #       4  = 4 Gigabaud
1410 #       8  = 8 Gigabaud
1411 # Value range is [0,8]. Default value is 0.
1412 */
1413 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1414
1415 /*
1416 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1417 # Value range is [2,3]. Default value is 3.
1418 */
1419 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1420                   "Select Fibre Channel class of service for FCP sequences");
1421
1422 /*
1423 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1424 # is [0,1]. Default value is 0.
1425 */
1426 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1427                    "Use ADISC on rediscovery to authenticate FCP devices");
1428
1429 /*
1430 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1431 # range is [0,1]. Default value is 0.
1432 */
1433 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1434
1435 /*
1436 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1437 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1438 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1439 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1440 # cr_delay is set to 0.
1441 */
1442 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1443                 "interrupt response is generated");
1444
1445 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1446                 "interrupt response is generated");
1447
1448 /*
1449 # lpfc_multi_ring_support:  Determines how many rings to spread available
1450 # cmd/rsp IOCB entries across.
1451 # Value range is [1,2]. Default value is 1.
1452 */
1453 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1454                 "SLI rings to spread IOCB entries across");
1455
1456 /*
1457 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1458 # identifies what rctl value to configure the additional ring for.
1459 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1460 */
1461 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1462              255, "Identifies RCTL for additional ring configuration");
1463
1464 /*
1465 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1466 # identifies what type value to configure the additional ring for.
1467 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1468 */
1469 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1470              255, "Identifies TYPE for additional ring configuration");
1471
1472 /*
1473 # lpfc_fdmi_on: controls FDMI support.
1474 #       0 = no FDMI support
1475 #       1 = support FDMI without attribute of hostname
1476 #       2 = support FDMI with attribute of hostname
1477 # Value range [0,2]. Default value is 0.
1478 */
1479 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1480
1481 /*
1482 # Specifies the maximum number of ELS cmds we can have outstanding (for
1483 # discovery). Value range is [1,64]. Default value = 32.
1484 */
1485 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1486                  "during discovery");
1487
1488 /*
1489 # lpfc_max_luns: maximum allowed LUN.
1490 # Value range is [0,65535]. Default value is 255.
1491 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1492 */
1493 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1494
1495 /*
1496 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1497 # Value range is [1,255], default value is 10.
1498 */
1499 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1500              "Milliseconds driver will wait between polling FCP ring");
1501
1502 /*
1503 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1504 #               support this feature
1505 #       0  = MSI disabled (default)
1506 #       1  = MSI enabled
1507 # Value range is [0,1]. Default value is 0.
1508 */
1509 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1510
1511
1512
1513 struct class_device_attribute *lpfc_hba_attrs[] = {
1514         &class_device_attr_info,
1515         &class_device_attr_serialnum,
1516         &class_device_attr_modeldesc,
1517         &class_device_attr_modelname,
1518         &class_device_attr_programtype,
1519         &class_device_attr_portnum,
1520         &class_device_attr_fwrev,
1521         &class_device_attr_hdw,
1522         &class_device_attr_option_rom_version,
1523         &class_device_attr_state,
1524         &class_device_attr_num_discovered_ports,
1525         &class_device_attr_lpfc_drvr_version,
1526         &class_device_attr_lpfc_log_verbose,
1527         &class_device_attr_lpfc_lun_queue_depth,
1528         &class_device_attr_lpfc_hba_queue_depth,
1529         &class_device_attr_lpfc_peer_port_login,
1530         &class_device_attr_lpfc_nodev_tmo,
1531         &class_device_attr_lpfc_devloss_tmo,
1532         &class_device_attr_lpfc_fcp_class,
1533         &class_device_attr_lpfc_use_adisc,
1534         &class_device_attr_lpfc_ack0,
1535         &class_device_attr_lpfc_topology,
1536         &class_device_attr_lpfc_scan_down,
1537         &class_device_attr_lpfc_link_speed,
1538         &class_device_attr_lpfc_cr_delay,
1539         &class_device_attr_lpfc_cr_count,
1540         &class_device_attr_lpfc_multi_ring_support,
1541         &class_device_attr_lpfc_multi_ring_rctl,
1542         &class_device_attr_lpfc_multi_ring_type,
1543         &class_device_attr_lpfc_fdmi_on,
1544         &class_device_attr_lpfc_max_luns,
1545         &class_device_attr_lpfc_npiv_enable,
1546         &class_device_attr_nport_evt_cnt,
1547         &class_device_attr_management_version,
1548         &class_device_attr_board_mode,
1549         &class_device_attr_max_vpi,
1550         &class_device_attr_used_vpi,
1551         &class_device_attr_max_rpi,
1552         &class_device_attr_used_rpi,
1553         &class_device_attr_max_xri,
1554         &class_device_attr_used_xri,
1555         &class_device_attr_npiv_info,
1556         &class_device_attr_issue_reset,
1557         &class_device_attr_lpfc_poll,
1558         &class_device_attr_lpfc_poll_tmo,
1559         &class_device_attr_lpfc_use_msi,
1560         &class_device_attr_lpfc_soft_wwnn,
1561         &class_device_attr_lpfc_soft_wwpn,
1562         &class_device_attr_lpfc_soft_wwn_enable,
1563         NULL,
1564 };
1565
1566 struct class_device_attribute *lpfc_vport_attrs[] = {
1567         &class_device_attr_info,
1568         &class_device_attr_state,
1569         &class_device_attr_num_discovered_ports,
1570         &class_device_attr_lpfc_drvr_version,
1571
1572         &class_device_attr_lpfc_log_verbose,
1573         &class_device_attr_lpfc_lun_queue_depth,
1574         &class_device_attr_lpfc_nodev_tmo,
1575         &class_device_attr_lpfc_devloss_tmo,
1576         &class_device_attr_lpfc_hba_queue_depth,
1577         &class_device_attr_lpfc_peer_port_login,
1578         &class_device_attr_lpfc_restrict_login,
1579         &class_device_attr_lpfc_fcp_class,
1580         &class_device_attr_lpfc_use_adisc,
1581         &class_device_attr_lpfc_fdmi_on,
1582         &class_device_attr_lpfc_max_luns,
1583         &class_device_attr_nport_evt_cnt,
1584         &class_device_attr_management_version,
1585         &class_device_attr_npiv_info,
1586         NULL,
1587 };
1588
1589 static ssize_t
1590 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1591                    char *buf, loff_t off, size_t count)
1592 {
1593         size_t buf_off;
1594         struct class_device *cdev = container_of(kobj, struct class_device,
1595                                                  kobj);
1596         struct Scsi_Host  *shost = class_to_shost(cdev);
1597         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1598         struct lpfc_hba   *phba = vport->phba;
1599
1600         if ((off + count) > FF_REG_AREA_SIZE)
1601                 return -ERANGE;
1602
1603         if (count == 0) return 0;
1604
1605         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1606                 return -EINVAL;
1607
1608         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1609                 return -EPERM;
1610         }
1611
1612         spin_lock_irq(&phba->hbalock);
1613         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1614                 writel(*((uint32_t *)(buf + buf_off)),
1615                        phba->ctrl_regs_memmap_p + off + buf_off);
1616
1617         spin_unlock_irq(&phba->hbalock);
1618
1619         return count;
1620 }
1621
1622 static ssize_t
1623 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1624                   char *buf, loff_t off, size_t count)
1625 {
1626         size_t buf_off;
1627         uint32_t * tmp_ptr;
1628         struct class_device *cdev = container_of(kobj, struct class_device,
1629                                                  kobj);
1630         struct Scsi_Host  *shost = class_to_shost(cdev);
1631         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1632         struct lpfc_hba   *phba = vport->phba;
1633
1634         if (off > FF_REG_AREA_SIZE)
1635                 return -ERANGE;
1636
1637         if ((off + count) > FF_REG_AREA_SIZE)
1638                 count = FF_REG_AREA_SIZE - off;
1639
1640         if (count == 0) return 0;
1641
1642         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1643                 return -EINVAL;
1644
1645         spin_lock_irq(&phba->hbalock);
1646
1647         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1648                 tmp_ptr = (uint32_t *)(buf + buf_off);
1649                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1650         }
1651
1652         spin_unlock_irq(&phba->hbalock);
1653
1654         return count;
1655 }
1656
1657 static struct bin_attribute sysfs_ctlreg_attr = {
1658         .attr = {
1659                 .name = "ctlreg",
1660                 .mode = S_IRUSR | S_IWUSR,
1661         },
1662         .size = 256,
1663         .read = sysfs_ctlreg_read,
1664         .write = sysfs_ctlreg_write,
1665 };
1666
1667
1668 static void
1669 sysfs_mbox_idle(struct lpfc_hba *phba)
1670 {
1671         phba->sysfs_mbox.state = SMBOX_IDLE;
1672         phba->sysfs_mbox.offset = 0;
1673
1674         if (phba->sysfs_mbox.mbox) {
1675                 mempool_free(phba->sysfs_mbox.mbox,
1676                              phba->mbox_mem_pool);
1677                 phba->sysfs_mbox.mbox = NULL;
1678         }
1679 }
1680
1681 static ssize_t
1682 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1683                  char *buf, loff_t off, size_t count)
1684 {
1685         struct class_device *cdev = container_of(kobj, struct class_device,
1686                                                  kobj);
1687         struct Scsi_Host  *shost = class_to_shost(cdev);
1688         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1689         struct lpfc_hba   *phba = vport->phba;
1690         struct lpfcMboxq  *mbox = NULL;
1691
1692         if ((count + off) > MAILBOX_CMD_SIZE)
1693                 return -ERANGE;
1694
1695         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1696                 return -EINVAL;
1697
1698         if (count == 0)
1699                 return 0;
1700
1701         if (off == 0) {
1702                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1703                 if (!mbox)
1704                         return -ENOMEM;
1705                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1706         }
1707
1708         spin_lock_irq(&phba->hbalock);
1709
1710         if (off == 0) {
1711                 if (phba->sysfs_mbox.mbox)
1712                         mempool_free(mbox, phba->mbox_mem_pool);
1713                 else
1714                         phba->sysfs_mbox.mbox = mbox;
1715                 phba->sysfs_mbox.state = SMBOX_WRITING;
1716         } else {
1717                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1718                     phba->sysfs_mbox.offset != off           ||
1719                     phba->sysfs_mbox.mbox   == NULL) {
1720                         sysfs_mbox_idle(phba);
1721                         spin_unlock_irq(&phba->hbalock);
1722                         return -EAGAIN;
1723                 }
1724         }
1725
1726         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1727                buf, count);
1728
1729         phba->sysfs_mbox.offset = off + count;
1730
1731         spin_unlock_irq(&phba->hbalock);
1732
1733         return count;
1734 }
1735
1736 static ssize_t
1737 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1738                 char *buf, loff_t off, size_t count)
1739 {
1740         struct class_device *cdev = container_of(kobj, struct class_device,
1741                                                  kobj);
1742         struct Scsi_Host  *shost = class_to_shost(cdev);
1743         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1744         struct lpfc_hba   *phba = vport->phba;
1745         int rc;
1746
1747         if (off > MAILBOX_CMD_SIZE)
1748                 return -ERANGE;
1749
1750         if ((count + off) > MAILBOX_CMD_SIZE)
1751                 count = MAILBOX_CMD_SIZE - off;
1752
1753         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1754                 return -EINVAL;
1755
1756         if (off && count == 0)
1757                 return 0;
1758
1759         spin_lock_irq(&phba->hbalock);
1760
1761         if (off == 0 &&
1762             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1763             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1764
1765                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1766                         /* Offline only */
1767                 case MBX_WRITE_NV:
1768                 case MBX_INIT_LINK:
1769                 case MBX_DOWN_LINK:
1770                 case MBX_CONFIG_LINK:
1771                 case MBX_CONFIG_RING:
1772                 case MBX_RESET_RING:
1773                 case MBX_UNREG_LOGIN:
1774                 case MBX_CLEAR_LA:
1775                 case MBX_DUMP_CONTEXT:
1776                 case MBX_RUN_DIAGS:
1777                 case MBX_RESTART:
1778                 case MBX_FLASH_WR_ULA:
1779                 case MBX_SET_MASK:
1780                 case MBX_SET_SLIM:
1781                 case MBX_SET_DEBUG:
1782                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1783                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1784                                        "is illegal in on-line state\n",
1785                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1786                                 sysfs_mbox_idle(phba);
1787                                 spin_unlock_irq(&phba->hbalock);
1788                                 return -EPERM;
1789                         }
1790                 case MBX_LOAD_SM:
1791                 case MBX_READ_NV:
1792                 case MBX_READ_CONFIG:
1793                 case MBX_READ_RCONFIG:
1794                 case MBX_READ_STATUS:
1795                 case MBX_READ_XRI:
1796                 case MBX_READ_REV:
1797                 case MBX_READ_LNK_STAT:
1798                 case MBX_DUMP_MEMORY:
1799                 case MBX_DOWN_LOAD:
1800                 case MBX_UPDATE_CFG:
1801                 case MBX_KILL_BOARD:
1802                 case MBX_LOAD_AREA:
1803                 case MBX_LOAD_EXP_ROM:
1804                 case MBX_BEACON:
1805                 case MBX_DEL_LD_ENTRY:
1806                         break;
1807                 case MBX_READ_SPARM64:
1808                 case MBX_READ_LA:
1809                 case MBX_READ_LA64:
1810                 case MBX_REG_LOGIN:
1811                 case MBX_REG_LOGIN64:
1812                 case MBX_CONFIG_PORT:
1813                 case MBX_RUN_BIU_DIAG:
1814                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1815                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1816                         sysfs_mbox_idle(phba);
1817                         spin_unlock_irq(&phba->hbalock);
1818                         return -EPERM;
1819                 default:
1820                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1821                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1822                         sysfs_mbox_idle(phba);
1823                         spin_unlock_irq(&phba->hbalock);
1824                         return -EPERM;
1825                 }
1826
1827                 phba->sysfs_mbox.mbox->vport = vport;
1828
1829                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1830                         sysfs_mbox_idle(phba);
1831                         spin_unlock_irq(&phba->hbalock);
1832                         return  -EAGAIN;
1833                 }
1834
1835                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1836                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1837
1838                         spin_unlock_irq(&phba->hbalock);
1839                         rc = lpfc_sli_issue_mbox (phba,
1840                                                   phba->sysfs_mbox.mbox,
1841                                                   MBX_POLL);
1842                         spin_lock_irq(&phba->hbalock);
1843
1844                 } else {
1845                         spin_unlock_irq(&phba->hbalock);
1846                         rc = lpfc_sli_issue_mbox_wait (phba,
1847                                                        phba->sysfs_mbox.mbox,
1848                                 lpfc_mbox_tmo_val(phba,
1849                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1850                         spin_lock_irq(&phba->hbalock);
1851                 }
1852
1853                 if (rc != MBX_SUCCESS) {
1854                         if (rc == MBX_TIMEOUT) {
1855                                 phba->sysfs_mbox.mbox = NULL;
1856                         }
1857                         sysfs_mbox_idle(phba);
1858                         spin_unlock_irq(&phba->hbalock);
1859                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1860                 }
1861                 phba->sysfs_mbox.state = SMBOX_READING;
1862         }
1863         else if (phba->sysfs_mbox.offset != off ||
1864                  phba->sysfs_mbox.state  != SMBOX_READING) {
1865                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1866                 sysfs_mbox_idle(phba);
1867                 spin_unlock_irq(&phba->hbalock);
1868                 return -EAGAIN;
1869         }
1870
1871         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1872
1873         phba->sysfs_mbox.offset = off + count;
1874
1875         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1876                 sysfs_mbox_idle(phba);
1877
1878         spin_unlock_irq(&phba->hbalock);
1879
1880         return count;
1881 }
1882
1883 static struct bin_attribute sysfs_mbox_attr = {
1884         .attr = {
1885                 .name = "mbox",
1886                 .mode = S_IRUSR | S_IWUSR,
1887         },
1888         .size = MAILBOX_CMD_SIZE,
1889         .read = sysfs_mbox_read,
1890         .write = sysfs_mbox_write,
1891 };
1892
1893 int
1894 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1895 {
1896         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1897         int error;
1898
1899         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1900                                       &sysfs_ctlreg_attr);
1901         if (error)
1902                 goto out;
1903
1904         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1905                                       &sysfs_mbox_attr);
1906         if (error)
1907                 goto out_remove_ctlreg_attr;
1908
1909         return 0;
1910 out_remove_ctlreg_attr:
1911         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1912 out:
1913         return error;
1914 }
1915
1916 void
1917 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1918 {
1919         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1920
1921         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1922         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1923 }
1924
1925
1926 /*
1927  * Dynamic FC Host Attributes Support
1928  */
1929
1930 static void
1931 lpfc_get_host_port_id(struct Scsi_Host *shost)
1932 {
1933         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1934
1935         /* note: fc_myDID already in cpu endianness */
1936         fc_host_port_id(shost) = vport->fc_myDID;
1937 }
1938
1939 static void
1940 lpfc_get_host_port_type(struct Scsi_Host *shost)
1941 {
1942         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1943         struct lpfc_hba   *phba = vport->phba;
1944
1945         spin_lock_irq(shost->host_lock);
1946
1947         if (vport->port_type == LPFC_NPIV_PORT) {
1948                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1949         } else if (lpfc_is_link_up(phba)) {
1950                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1951                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1952                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1953                         else
1954                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1955                 } else {
1956                         if (vport->fc_flag & FC_FABRIC)
1957                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1958                         else
1959                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1960                 }
1961         } else
1962                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1963
1964         spin_unlock_irq(shost->host_lock);
1965 }
1966
1967 static void
1968 lpfc_get_host_port_state(struct Scsi_Host *shost)
1969 {
1970         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1971         struct lpfc_hba   *phba = vport->phba;
1972
1973         spin_lock_irq(shost->host_lock);
1974
1975         if (vport->fc_flag & FC_OFFLINE_MODE)
1976                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1977         else {
1978                 switch (phba->link_state) {
1979                 case LPFC_LINK_UNKNOWN:
1980                 case LPFC_LINK_DOWN:
1981                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1982                         break;
1983                 case LPFC_LINK_UP:
1984                 case LPFC_CLEAR_LA:
1985                 case LPFC_HBA_READY:
1986                         /* Links up, beyond this port_type reports state */
1987                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1988                         break;
1989                 case LPFC_HBA_ERROR:
1990                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1991                         break;
1992                 default:
1993                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1994                         break;
1995                 }
1996         }
1997
1998         spin_unlock_irq(shost->host_lock);
1999 }
2000
2001 static void
2002 lpfc_get_host_speed(struct Scsi_Host *shost)
2003 {
2004         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2005         struct lpfc_hba   *phba = vport->phba;
2006
2007         spin_lock_irq(shost->host_lock);
2008
2009         if (lpfc_is_link_up(phba)) {
2010                 switch(phba->fc_linkspeed) {
2011                         case LA_1GHZ_LINK:
2012                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
2013                         break;
2014                         case LA_2GHZ_LINK:
2015                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
2016                         break;
2017                         case LA_4GHZ_LINK:
2018                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
2019                         break;
2020                         case LA_8GHZ_LINK:
2021                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2022                         break;
2023                         default:
2024                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2025                         break;
2026                 }
2027         }
2028
2029         spin_unlock_irq(shost->host_lock);
2030 }
2031
2032 static void
2033 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2034 {
2035         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2036         struct lpfc_hba   *phba = vport->phba;
2037         u64 node_name;
2038
2039         spin_lock_irq(shost->host_lock);
2040
2041         if ((vport->fc_flag & FC_FABRIC) ||
2042             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2043              (vport->fc_flag & FC_PUBLIC_LOOP)))
2044                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2045         else
2046                 /* fabric is local port if there is no F/FL_Port */
2047                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2048
2049         spin_unlock_irq(shost->host_lock);
2050
2051         fc_host_fabric_name(shost) = node_name;
2052 }
2053
2054 static struct fc_host_statistics *
2055 lpfc_get_stats(struct Scsi_Host *shost)
2056 {
2057         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2058         struct lpfc_hba   *phba = vport->phba;
2059         struct lpfc_sli   *psli = &phba->sli;
2060         struct fc_host_statistics *hs = &phba->link_stats;
2061         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2062         LPFC_MBOXQ_t *pmboxq;
2063         MAILBOX_t *pmb;
2064         unsigned long seconds;
2065         int rc = 0;
2066
2067         /*
2068          * prevent udev from issuing mailbox commands until the port is
2069          * configured.
2070          */
2071         if (phba->link_state < LPFC_LINK_DOWN ||
2072             !phba->mbox_mem_pool ||
2073             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2074                 return NULL;
2075
2076         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2077                 return NULL;
2078
2079         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2080         if (!pmboxq)
2081                 return NULL;
2082         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2083
2084         pmb = &pmboxq->mb;
2085         pmb->mbxCommand = MBX_READ_STATUS;
2086         pmb->mbxOwner = OWN_HOST;
2087         pmboxq->context1 = NULL;
2088         pmboxq->vport = vport;
2089
2090         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2091                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2092                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2093         else
2094                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2095
2096         if (rc != MBX_SUCCESS) {
2097                 if (rc != MBX_TIMEOUT)
2098                         mempool_free(pmboxq, phba->mbox_mem_pool);
2099                 return NULL;
2100         }
2101
2102         memset(hs, 0, sizeof (struct fc_host_statistics));
2103
2104         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2105         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2106         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2107         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2108
2109         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2110         pmb->mbxCommand = MBX_READ_LNK_STAT;
2111         pmb->mbxOwner = OWN_HOST;
2112         pmboxq->context1 = NULL;
2113         pmboxq->vport = vport;
2114
2115         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2116             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2117                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2118         else
2119                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2120
2121         if (rc != MBX_SUCCESS) {
2122                 if (rc != MBX_TIMEOUT)
2123                         mempool_free(pmboxq, phba->mbox_mem_pool);
2124                 return NULL;
2125         }
2126
2127         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2128         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2129         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2130         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2131         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2132         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2133         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2134
2135         hs->link_failure_count -= lso->link_failure_count;
2136         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2137         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2138         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2139         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2140         hs->invalid_crc_count -= lso->invalid_crc_count;
2141         hs->error_frames -= lso->error_frames;
2142
2143         if (phba->fc_topology == TOPOLOGY_LOOP) {
2144                 hs->lip_count = (phba->fc_eventTag >> 1);
2145                 hs->lip_count -= lso->link_events;
2146                 hs->nos_count = -1;
2147         } else {
2148                 hs->lip_count = -1;
2149                 hs->nos_count = (phba->fc_eventTag >> 1);
2150                 hs->nos_count -= lso->link_events;
2151         }
2152
2153         hs->dumped_frames = -1;
2154
2155         seconds = get_seconds();
2156         if (seconds < psli->stats_start)
2157                 hs->seconds_since_last_reset = seconds +
2158                                 ((unsigned long)-1 - psli->stats_start);
2159         else
2160                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2161
2162         mempool_free(pmboxq, phba->mbox_mem_pool);
2163
2164         return hs;
2165 }
2166
2167 static void
2168 lpfc_reset_stats(struct Scsi_Host *shost)
2169 {
2170         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2171         struct lpfc_hba   *phba = vport->phba;
2172         struct lpfc_sli   *psli = &phba->sli;
2173         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2174         LPFC_MBOXQ_t *pmboxq;
2175         MAILBOX_t *pmb;
2176         int rc = 0;
2177
2178         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2179                 return;
2180
2181         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2182         if (!pmboxq)
2183                 return;
2184         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2185
2186         pmb = &pmboxq->mb;
2187         pmb->mbxCommand = MBX_READ_STATUS;
2188         pmb->mbxOwner = OWN_HOST;
2189         pmb->un.varWords[0] = 0x1; /* reset request */
2190         pmboxq->context1 = NULL;
2191         pmboxq->vport = vport;
2192
2193         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2194                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2195                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2196         else
2197                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2198
2199         if (rc != MBX_SUCCESS) {
2200                 if (rc != MBX_TIMEOUT)
2201                         mempool_free(pmboxq, phba->mbox_mem_pool);
2202                 return;
2203         }
2204
2205         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2206         pmb->mbxCommand = MBX_READ_LNK_STAT;
2207         pmb->mbxOwner = OWN_HOST;
2208         pmboxq->context1 = NULL;
2209         pmboxq->vport = vport;
2210
2211         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2212             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2213                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2214         else
2215                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2216
2217         if (rc != MBX_SUCCESS) {
2218                 if (rc != MBX_TIMEOUT)
2219                         mempool_free( pmboxq, phba->mbox_mem_pool);
2220                 return;
2221         }
2222
2223         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2224         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2225         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2226         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2227         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2228         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2229         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2230         lso->link_events = (phba->fc_eventTag >> 1);
2231
2232         psli->stats_start = get_seconds();
2233
2234         mempool_free(pmboxq, phba->mbox_mem_pool);
2235
2236         return;
2237 }
2238
2239 /*
2240  * The LPFC driver treats linkdown handling as target loss events so there
2241  * are no sysfs handlers for link_down_tmo.
2242  */
2243
2244 static struct lpfc_nodelist *
2245 lpfc_get_node_by_target(struct scsi_target *starget)
2246 {
2247         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2248         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2249         struct lpfc_nodelist *ndlp;
2250
2251         spin_lock_irq(shost->host_lock);
2252         /* Search for this, mapped, target ID */
2253         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2254                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2255                     starget->id == ndlp->nlp_sid) {
2256                         spin_unlock_irq(shost->host_lock);
2257                         return ndlp;
2258                 }
2259         }
2260         spin_unlock_irq(shost->host_lock);
2261         return NULL;
2262 }
2263
2264 static void
2265 lpfc_get_starget_port_id(struct scsi_target *starget)
2266 {
2267         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2268
2269         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2270 }
2271
2272 static void
2273 lpfc_get_starget_node_name(struct scsi_target *starget)
2274 {
2275         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2276
2277         fc_starget_node_name(starget) =
2278                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2279 }
2280
2281 static void
2282 lpfc_get_starget_port_name(struct scsi_target *starget)
2283 {
2284         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2285
2286         fc_starget_port_name(starget) =
2287                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2288 }
2289
2290 static void
2291 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2292 {
2293         if (timeout)
2294                 rport->dev_loss_tmo = timeout;
2295         else
2296                 rport->dev_loss_tmo = 1;
2297 }
2298
2299
2300 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2301 static ssize_t                                                          \
2302 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2303 {                                                                       \
2304         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2305         struct lpfc_rport_data *rdata = rport->hostdata;                \
2306         return snprintf(buf, sz, format_string,                         \
2307                 (rdata->target) ? cast rdata->target->field : 0);       \
2308 }
2309
2310 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2311         lpfc_rport_show_function(field, format_string, sz, )            \
2312 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2313
2314
2315 struct fc_function_template lpfc_transport_functions = {
2316         /* fixed attributes the driver supports */
2317         .show_host_node_name = 1,
2318         .show_host_port_name = 1,
2319         .show_host_supported_classes = 1,
2320         .show_host_supported_fc4s = 1,
2321         .show_host_supported_speeds = 1,
2322         .show_host_maxframe_size = 1,
2323
2324         /* dynamic attributes the driver supports */
2325         .get_host_port_id = lpfc_get_host_port_id,
2326         .show_host_port_id = 1,
2327
2328         .get_host_port_type = lpfc_get_host_port_type,
2329         .show_host_port_type = 1,
2330
2331         .get_host_port_state = lpfc_get_host_port_state,
2332         .show_host_port_state = 1,
2333
2334         /* active_fc4s is shown but doesn't change (thus no get function) */
2335         .show_host_active_fc4s = 1,
2336
2337         .get_host_speed = lpfc_get_host_speed,
2338         .show_host_speed = 1,
2339
2340         .get_host_fabric_name = lpfc_get_host_fabric_name,
2341         .show_host_fabric_name = 1,
2342
2343         /*
2344          * The LPFC driver treats linkdown handling as target loss events
2345          * so there are no sysfs handlers for link_down_tmo.
2346          */
2347
2348         .get_fc_host_stats = lpfc_get_stats,
2349         .reset_fc_host_stats = lpfc_reset_stats,
2350
2351         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2352         .show_rport_maxframe_size = 1,
2353         .show_rport_supported_classes = 1,
2354
2355         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2356         .show_rport_dev_loss_tmo = 1,
2357
2358         .get_starget_port_id  = lpfc_get_starget_port_id,
2359         .show_starget_port_id = 1,
2360
2361         .get_starget_node_name = lpfc_get_starget_node_name,
2362         .show_starget_node_name = 1,
2363
2364         .get_starget_port_name = lpfc_get_starget_port_name,
2365         .show_starget_port_name = 1,
2366
2367         .issue_fc_host_lip = lpfc_issue_lip,
2368         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2369         .terminate_rport_io = lpfc_terminate_rport_io,
2370
2371         .vport_create = lpfc_vport_create,
2372         .vport_delete = lpfc_vport_delete,
2373         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2374 };
2375
2376 struct fc_function_template lpfc_vport_transport_functions = {
2377         /* fixed attributes the driver supports */
2378         .show_host_node_name = 1,
2379         .show_host_port_name = 1,
2380         .show_host_supported_classes = 1,
2381         .show_host_supported_fc4s = 1,
2382         .show_host_supported_speeds = 1,
2383         .show_host_maxframe_size = 1,
2384
2385         /* dynamic attributes the driver supports */
2386         .get_host_port_id = lpfc_get_host_port_id,
2387         .show_host_port_id = 1,
2388
2389         .get_host_port_type = lpfc_get_host_port_type,
2390         .show_host_port_type = 1,
2391
2392         .get_host_port_state = lpfc_get_host_port_state,
2393         .show_host_port_state = 1,
2394
2395         /* active_fc4s is shown but doesn't change (thus no get function) */
2396         .show_host_active_fc4s = 1,
2397
2398         .get_host_speed = lpfc_get_host_speed,
2399         .show_host_speed = 1,
2400
2401         .get_host_fabric_name = lpfc_get_host_fabric_name,
2402         .show_host_fabric_name = 1,
2403
2404         /*
2405          * The LPFC driver treats linkdown handling as target loss events
2406          * so there are no sysfs handlers for link_down_tmo.
2407          */
2408
2409         .get_fc_host_stats = lpfc_get_stats,
2410         .reset_fc_host_stats = lpfc_reset_stats,
2411
2412         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2413         .show_rport_maxframe_size = 1,
2414         .show_rport_supported_classes = 1,
2415
2416         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2417         .show_rport_dev_loss_tmo = 1,
2418
2419         .get_starget_port_id  = lpfc_get_starget_port_id,
2420         .show_starget_port_id = 1,
2421
2422         .get_starget_node_name = lpfc_get_starget_node_name,
2423         .show_starget_node_name = 1,
2424
2425         .get_starget_port_name = lpfc_get_starget_port_name,
2426         .show_starget_port_name = 1,
2427
2428         .issue_fc_host_lip = lpfc_issue_lip,
2429         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2430         .terminate_rport_io = lpfc_terminate_rport_io,
2431
2432         .vport_disable = lpfc_vport_disable,
2433 };
2434
2435 void
2436 lpfc_get_cfgparam(struct lpfc_hba *phba)
2437 {
2438         lpfc_log_verbose_init(phba, lpfc_log_verbose);
2439         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2440         lpfc_cr_count_init(phba, lpfc_cr_count);
2441         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2442         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2443         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2444         lpfc_ack0_init(phba, lpfc_ack0);
2445         lpfc_topology_init(phba, lpfc_topology);
2446         lpfc_link_speed_init(phba, lpfc_link_speed);
2447         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2448         lpfc_npiv_enable_init(phba, lpfc_npiv_enable);
2449         lpfc_use_msi_init(phba, lpfc_use_msi);
2450         phba->cfg_poll = lpfc_poll;
2451         phba->cfg_soft_wwnn = 0L;
2452         phba->cfg_soft_wwpn = 0L;
2453         /*
2454          * The total number of segments is the configuration value plus 2
2455          * since the IOCB need a command and response bde.
2456          */
2457         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2458         /*
2459          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2460          * used to create the sg_dma_buf_pool must be dynamically calculated
2461          */
2462         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2463                         sizeof(struct fcp_rsp) +
2464                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2465         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2466         return;
2467 }
2468
2469 void
2470 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2471 {
2472         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2473         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2474         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2475         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2476         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2477         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2478         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2479         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2480         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2481         lpfc_max_luns_init(vport, lpfc_max_luns);
2482         lpfc_scan_down_init(vport, lpfc_scan_down);
2483         return;
2484 }