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

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/ctype.h>
  23 #include <linux/delay.h>
  24 #include <linux/pci.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_device.h>
  29 #include <scsi/scsi_host.h>
  30 #include <scsi/scsi_tcq.h>
  31 #include <scsi/scsi_transport_fc.h>
  32
  33 #include "lpfc_hw.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_disc.h"
  36 #include "lpfc_scsi.h"
  37 #include "lpfc.h"
  38 #include "lpfc_logmsg.h"
  39 #include "lpfc_version.h"
  40 #include "lpfc_compat.h"
  41 #include "lpfc_crtn.h"
  42 #include "lpfc_vport.h"
  43
  44 #define LPFC_DEF_DEVLOSS_TMO 30
  45 #define LPFC_MIN_DEVLOSS_TMO 1
  46 #define LPFC_MAX_DEVLOSS_TMO 255
  47
  48 static void
  49 lpfc_jedec_to_ascii(int incr, char hdw[])
  50 {
  51         int i, j;
  52         for (i = 0; i < 8; i++) {
  53                 j = (incr & 0xf);
  54                 if (j <= 9)
  55                         hdw[7 - i] = 0x30 +  j;
  56                  else
  57                         hdw[7 - i] = 0x61 + j - 10;
  58                 incr = (incr >> 4);
  59         }
  60         hdw[8] = 0;
  61         return;
  62 }
  63
  64 static ssize_t
  65 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
  66 {
  67         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  68 }
  69
  70 static ssize_t
  71 lpfc_info_show(struct class_device *cdev, char *buf)
  72 {
  73         struct Scsi_Host *host = class_to_shost(cdev);
  74
  75         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  76 }
  77
  78 static ssize_t
  79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
  80 {
  81         struct Scsi_Host  *shost = class_to_shost(cdev);
  82         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  83         struct lpfc_hba   *phba = vport->phba;
  84
  85         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  86 }
  87
  88 static ssize_t
  89 lpfc_temp_sensor_show(struct class_device *cdev, char *buf)
  90 {
  91         struct Scsi_Host *shost = class_to_shost(cdev);
  92         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  93         struct lpfc_hba   *phba = vport->phba;
  94         return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
  95 }
  96
  97 static ssize_t
  98 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  99 {
 100         struct Scsi_Host  *shost = class_to_shost(cdev);
 101         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 102         struct lpfc_hba   *phba = vport->phba;
 103
 104         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
 105 }
 106
 107 static ssize_t
 108 lpfc_modelname_show(struct class_device *cdev, char *buf)
 109 {
 110         struct Scsi_Host  *shost = class_to_shost(cdev);
 111         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 112         struct lpfc_hba   *phba = vport->phba;
 113
 114         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 115 }
 116
 117 static ssize_t
 118 lpfc_programtype_show(struct class_device *cdev, char *buf)
 119 {
 120         struct Scsi_Host  *shost = class_to_shost(cdev);
 121         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 122         struct lpfc_hba   *phba = vport->phba;
 123
 124         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 125 }
 126
 127 static ssize_t
 128 lpfc_vportnum_show(struct class_device *cdev, char *buf)
 129 {
 130         struct Scsi_Host  *shost = class_to_shost(cdev);
 131         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 132         struct lpfc_hba   *phba = vport->phba;
 133
 134         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 135 }
 136
 137 static ssize_t
 138 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 139 {
 140         struct Scsi_Host  *shost = class_to_shost(cdev);
 141         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 142         struct lpfc_hba   *phba = vport->phba;
 143         char fwrev[32];
 144
 145         lpfc_decode_firmware_rev(phba, fwrev, 1);
 146         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 147 }
 148
 149 static ssize_t
 150 lpfc_hdw_show(struct class_device *cdev, char *buf)
 151 {
 152         char hdw[9];
 153         struct Scsi_Host  *shost = class_to_shost(cdev);
 154         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 155         struct lpfc_hba   *phba = vport->phba;
 156         lpfc_vpd_t *vp = &phba->vpd;
 157
 158         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 159         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 160 }
 161 static ssize_t
 162 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 163 {
 164         struct Scsi_Host  *shost = class_to_shost(cdev);
 165         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 166         struct lpfc_hba   *phba = vport->phba;
 167
 168         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 169 }
 170 static ssize_t
 171 lpfc_state_show(struct class_device *cdev, char *buf)
 172 {
 173         struct Scsi_Host  *shost = class_to_shost(cdev);
 174         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 175         struct lpfc_hba   *phba = vport->phba;
 176         int  len = 0;
 177
 178         switch (phba->link_state) {
 179         case LPFC_LINK_UNKNOWN:
 180         case LPFC_WARM_START:
 181         case LPFC_INIT_START:
 182         case LPFC_INIT_MBX_CMDS:
 183         case LPFC_LINK_DOWN:
 184         case LPFC_HBA_ERROR:
 185                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 186                 break;
 187         case LPFC_LINK_UP:
 188         case LPFC_CLEAR_LA:
 189         case LPFC_HBA_READY:
 190                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
 191
 192                 switch (vport->port_state) {
 193                         len += snprintf(buf + len, PAGE_SIZE-len,
 194                                         "initializing\n");
 195                         break;
 196                 case LPFC_LOCAL_CFG_LINK:
 197                         len += snprintf(buf + len, PAGE_SIZE-len,
 198                                         "Configuring Link\n");
 199                         break;
 200                 case LPFC_FDISC:
 201                 case LPFC_FLOGI:
 202                 case LPFC_FABRIC_CFG_LINK:
 203                 case LPFC_NS_REG:
 204                 case LPFC_NS_QRY:
 205                 case LPFC_BUILD_DISC_LIST:
 206                 case LPFC_DISC_AUTH:
 207                         len += snprintf(buf + len, PAGE_SIZE - len,
 208                                         "Discovery\n");
 209                         break;
 210                 case LPFC_VPORT_READY:
 211                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 212                         break;
 213
 214                 case LPFC_VPORT_FAILED:
 215                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 216                         break;
 217
 218                 case LPFC_VPORT_UNKNOWN:
 219                         len += snprintf(buf + len, PAGE_SIZE - len,
 220                                         "Unknown\n");
 221                         break;
 222                 }
 223
 224                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 225                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 226                                 len += snprintf(buf + len, PAGE_SIZE-len,
 227                                                 "   Public Loop\n");
 228                         else
 229                                 len += snprintf(buf + len, PAGE_SIZE-len,
 230                                                 "   Private Loop\n");
 231                 } else {
 232                         if (vport->fc_flag & FC_FABRIC)
 233                                 len += snprintf(buf + len, PAGE_SIZE-len,
 234                                                 "   Fabric\n");
 235                         else
 236                                 len += snprintf(buf + len, PAGE_SIZE-len,
 237                                                 "   Point-2-Point\n");
 238                 }
 239         }
 240
 241         return len;
 242 }
 243
 244 static ssize_t
 245 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 246 {
 247         struct Scsi_Host  *shost = class_to_shost(cdev);
 248         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 249
 250         return snprintf(buf, PAGE_SIZE, "%d\n",
 251                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 252 }
 253
 254
 255 static int
 256 lpfc_issue_lip(struct Scsi_Host *shost)
 257 {
 258         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 259         struct lpfc_hba   *phba = vport->phba;
 260         LPFC_MBOXQ_t *pmboxq;
 261         int mbxstatus = MBXERR_ERROR;
 262
 263         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 264             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
 265             (vport->port_state != LPFC_VPORT_READY))
 266                 return -EPERM;
 267
 268         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 269
 270         if (!pmboxq)
 271                 return -ENOMEM;
 272
 273         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 274         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 275         pmboxq->mb.mbxOwner = OWN_HOST;
 276
 277         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 278
 279         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 280                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 281                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 282                                phba->cfg_link_speed);
 283                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 284                                                      phba->fc_ratov * 2);
 285         }
 286
 287         lpfc_set_loopback_flag(phba);
 288         if (mbxstatus != MBX_TIMEOUT)
 289                 mempool_free(pmboxq, phba->mbox_mem_pool);
 290
 291         if (mbxstatus == MBXERR_ERROR)
 292                 return -EIO;
 293
 294         return 0;
 295 }
 296
 297 static int
 298 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 299 {
 300         struct completion online_compl;
 301         struct lpfc_sli_ring *pring;
 302         struct lpfc_sli *psli;
 303         int status = 0;
 304         int cnt = 0;
 305         int i;
 306
 307         init_completion(&online_compl);
 308         lpfc_workq_post_event(phba, &status, &online_compl,
 309                               LPFC_EVT_OFFLINE_PREP);
 310         wait_for_completion(&online_compl);
 311
 312         if (status != 0)
 313                 return -EIO;
 314
 315         psli = &phba->sli;
 316
 317         for (i = 0; i < psli->num_rings; i++) {
 318                 pring = &psli->ring[i];
 319                 /* The linkdown event takes 30 seconds to timeout. */
 320                 while (pring->txcmplq_cnt) {
 321                         msleep(10);
 322                         if (cnt++ > 3000) {
 323                                 lpfc_printf_log(phba,
 324                                         KERN_WARNING, LOG_INIT,
 325                                         "0466 Outstanding IO when "
 326                                         "bringing Adapter offline\n");
 327                                 break;
 328                         }
 329                 }
 330         }
 331
 332         init_completion(&online_compl);
 333         lpfc_workq_post_event(phba, &status, &online_compl, type);
 334         wait_for_completion(&online_compl);
 335
 336         if (status != 0)
 337                 return -EIO;
 338
 339         return 0;
 340 }
 341
 342 static int
 343 lpfc_selective_reset(struct lpfc_hba *phba)
 344 {
 345         struct completion online_compl;
 346         int status = 0;
 347
 348         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 349
 350         if (status != 0)
 351                 return status;
 352
 353         init_completion(&online_compl);
 354         lpfc_workq_post_event(phba, &status, &online_compl,
 355                               LPFC_EVT_ONLINE);
 356         wait_for_completion(&online_compl);
 357
 358         if (status != 0)
 359                 return -EIO;
 360
 361         return 0;
 362 }
 363
 364 static ssize_t
 365 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
 366 {
 367         struct Scsi_Host  *shost = class_to_shost(cdev);
 368         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 369         struct lpfc_hba   *phba = vport->phba;
 370
 371         int status = -EINVAL;
 372
 373         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 374                 status = lpfc_selective_reset(phba);
 375
 376         if (status == 0)
 377                 return strlen(buf);
 378         else
 379                 return status;
 380 }
 381
 382 static ssize_t
 383 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 384 {
 385         struct Scsi_Host  *shost = class_to_shost(cdev);
 386         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 387         struct lpfc_hba   *phba = vport->phba;
 388
 389         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 390 }
 391
 392 static ssize_t
 393 lpfc_board_mode_show(struct class_device *cdev, char *buf)
 394 {
 395         struct Scsi_Host  *shost = class_to_shost(cdev);
 396         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 397         struct lpfc_hba   *phba = vport->phba;
 398         char  * state;
 399
 400         if (phba->link_state == LPFC_HBA_ERROR)
 401                 state = "error";
 402         else if (phba->link_state == LPFC_WARM_START)
 403                 state = "warm start";
 404         else if (phba->link_state == LPFC_INIT_START)
 405                 state = "offline";
 406         else
 407                 state = "online";
 408
 409         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 410 }
 411
 412 static ssize_t
 413 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
 414 {
 415         struct Scsi_Host  *shost = class_to_shost(cdev);
 416         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 417         struct lpfc_hba   *phba = vport->phba;
 418         struct completion online_compl;
 419         int status=0;
 420
 421         init_completion(&online_compl);
 422
 423         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 424                 lpfc_workq_post_event(phba, &status, &online_compl,
 425                                       LPFC_EVT_ONLINE);
 426                 wait_for_completion(&online_compl);
 427         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 428                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 429         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 430                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 431         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 432                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 433         else
 434                 return -EINVAL;
 435
 436         if (!status)
 437                 return strlen(buf);
 438         else
 439                 return -EIO;
 440 }
 441
 442 static int
 443 lpfc_get_hba_info(struct lpfc_hba *phba,
 444                   uint32_t *mxri, uint32_t *axri,
 445                   uint32_t *mrpi, uint32_t *arpi,
 446                   uint32_t *mvpi, uint32_t *avpi)
 447 {
 448         struct lpfc_sli   *psli = &phba->sli;
 449         LPFC_MBOXQ_t *pmboxq;
 450         MAILBOX_t *pmb;
 451         int rc = 0;
 452
 453         /*
 454          * prevent udev from issuing mailbox commands until the port is
 455          * configured.
 456          */
 457         if (phba->link_state < LPFC_LINK_DOWN ||
 458             !phba->mbox_mem_pool ||
 459             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 460                 return 0;
 461
 462         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 463                 return 0;
 464
 465         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 466         if (!pmboxq)
 467                 return 0;
 468         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 469
 470         pmb = &pmboxq->mb;
 471         pmb->mbxCommand = MBX_READ_CONFIG;
 472         pmb->mbxOwner = OWN_HOST;
 473         pmboxq->context1 = NULL;
 474
 475         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 476                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 477                 rc = MBX_NOT_FINISHED;
 478         else
 479                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 480
 481         if (rc != MBX_SUCCESS) {
 482                 if (rc != MBX_TIMEOUT)
 483                         mempool_free(pmboxq, phba->mbox_mem_pool);
 484                 return 0;
 485         }
 486
 487         if (mrpi)
 488                 *mrpi = pmb->un.varRdConfig.max_rpi;
 489         if (arpi)
 490                 *arpi = pmb->un.varRdConfig.avail_rpi;
 491         if (mxri)
 492                 *mxri = pmb->un.varRdConfig.max_xri;
 493         if (axri)
 494                 *axri = pmb->un.varRdConfig.avail_xri;
 495         if (mvpi)
 496                 *mvpi = pmb->un.varRdConfig.max_vpi;
 497         if (avpi)
 498                 *avpi = pmb->un.varRdConfig.avail_vpi;
 499
 500         mempool_free(pmboxq, phba->mbox_mem_pool);
 501         return 1;
 502 }
 503
 504 static ssize_t
 505 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
 506 {
 507         struct Scsi_Host  *shost = class_to_shost(cdev);
 508         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 509         struct lpfc_hba   *phba = vport->phba;
 510         uint32_t cnt;
 511
 512         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 513                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 514         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 515 }
 516
 517 static ssize_t
 518 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
 519 {
 520         struct Scsi_Host  *shost = class_to_shost(cdev);
 521         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 522         struct lpfc_hba   *phba = vport->phba;
 523         uint32_t cnt, acnt;
 524
 525         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 526                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 527         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 528 }
 529
 530 static ssize_t
 531 lpfc_max_xri_show(struct class_device *cdev, char *buf)
 532 {
 533         struct Scsi_Host  *shost = class_to_shost(cdev);
 534         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 535         struct lpfc_hba   *phba = vport->phba;
 536         uint32_t cnt;
 537
 538         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
 539                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 540         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 541 }
 542
 543 static ssize_t
 544 lpfc_used_xri_show(struct class_device *cdev, char *buf)
 545 {
 546         struct Scsi_Host  *shost = class_to_shost(cdev);
 547         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 548         struct lpfc_hba   *phba = vport->phba;
 549         uint32_t cnt, acnt;
 550
 551         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 552                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 553         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 554 }
 555
 556 static ssize_t
 557 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
 558 {
 559         struct Scsi_Host  *shost = class_to_shost(cdev);
 560         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 561         struct lpfc_hba   *phba = vport->phba;
 562         uint32_t cnt;
 563
 564         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 565                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 566         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 567 }
 568
 569 static ssize_t
 570 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
 571 {
 572         struct Scsi_Host  *shost = class_to_shost(cdev);
 573         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 574         struct lpfc_hba   *phba = vport->phba;
 575         uint32_t cnt, acnt;
 576
 577         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 578                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 579         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 580 }
 581
 582 static ssize_t
 583 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
 584 {
 585         struct Scsi_Host  *shost = class_to_shost(cdev);
 586         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 587         struct lpfc_hba   *phba = vport->phba;
 588
 589         if (!(phba->max_vpi))
 590                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 591         if (vport->port_type == LPFC_PHYSICAL_PORT)
 592                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 593         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 594 }
 595
 596 static ssize_t
 597 lpfc_poll_show(struct class_device *cdev, char *buf)
 598 {
 599         struct Scsi_Host  *shost = class_to_shost(cdev);
 600         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 601         struct lpfc_hba   *phba = vport->phba;
 602
 603         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 604 }
 605
 606 static ssize_t
 607 lpfc_poll_store(struct class_device *cdev, const char *buf,
 608                 size_t count)
 609 {
 610         struct Scsi_Host  *shost = class_to_shost(cdev);
 611         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 612         struct lpfc_hba   *phba = vport->phba;
 613         uint32_t creg_val;
 614         uint32_t old_val;
 615         int val=0;
 616
 617         if (!isdigit(buf[0]))
 618                 return -EINVAL;
 619
 620         if (sscanf(buf, "%i", &val) != 1)
 621                 return -EINVAL;
 622
 623         if ((val & 0x3) != val)
 624                 return -EINVAL;
 625
 626         spin_lock_irq(&phba->hbalock);
 627
 628         old_val = phba->cfg_poll;
 629
 630         if (val & ENABLE_FCP_RING_POLLING) {
 631                 if ((val & DISABLE_FCP_RING_INT) &&
 632                     !(old_val & DISABLE_FCP_RING_INT)) {
 633                         creg_val = readl(phba->HCregaddr);
 634                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 635                         writel(creg_val, phba->HCregaddr);
 636                         readl(phba->HCregaddr); /* flush */
 637
 638                         lpfc_poll_start_timer(phba);
 639                 }
 640         } else if (val != 0x0) {
 641                 spin_unlock_irq(&phba->hbalock);
 642                 return -EINVAL;
 643         }
 644
 645         if (!(val & DISABLE_FCP_RING_INT) &&
 646             (old_val & DISABLE_FCP_RING_INT))
 647         {
 648                 spin_unlock_irq(&phba->hbalock);
 649                 del_timer(&phba->fcp_poll_timer);
 650                 spin_lock_irq(&phba->hbalock);
 651                 creg_val = readl(phba->HCregaddr);
 652                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 653                 writel(creg_val, phba->HCregaddr);
 654                 readl(phba->HCregaddr); /* flush */
 655         }
 656
 657         phba->cfg_poll = val;
 658
 659         spin_unlock_irq(&phba->hbalock);
 660
 661         return strlen(buf);
 662 }
 663
 664 #define lpfc_param_show(attr)   \
 665 static ssize_t \
 666 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 667 { \
 668         struct Scsi_Host  *shost = class_to_shost(cdev);\
 669         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 670         struct lpfc_hba   *phba = vport->phba;\
 671         int val = 0;\
 672         val = phba->cfg_##attr;\
 673         return snprintf(buf, PAGE_SIZE, "%d\n",\
 674                         phba->cfg_##attr);\
 675 }
 676
 677 #define lpfc_param_hex_show(attr)       \
 678 static ssize_t \
 679 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 680 { \
 681         struct Scsi_Host  *shost = class_to_shost(cdev);\
 682         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 683         struct lpfc_hba   *phba = vport->phba;\
 684         int val = 0;\
 685         val = phba->cfg_##attr;\
 686         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 687                         phba->cfg_##attr);\
 688 }
 689
 690 #define lpfc_param_init(attr, default, minval, maxval)  \
 691 static int \
 692 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 693 { \
 694         if (val >= minval && val <= maxval) {\
 695                 phba->cfg_##attr = val;\
 696                 return 0;\
 697         }\
 698         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 699                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 700                         "allowed range is ["#minval", "#maxval"]\n", val); \
 701         phba->cfg_##attr = default;\
 702         return -EINVAL;\
 703 }
 704
 705 #define lpfc_param_set(attr, default, minval, maxval)   \
 706 static int \
 707 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 708 { \
 709         if (val >= minval && val <= maxval) {\
 710                 phba->cfg_##attr = val;\
 711                 return 0;\
 712         }\
 713         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 714                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 715                         "allowed range is ["#minval", "#maxval"]\n", val); \
 716         return -EINVAL;\
 717 }
 718
 719 #define lpfc_param_store(attr)  \
 720 static ssize_t \
 721 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 722 { \
 723         struct Scsi_Host  *shost = class_to_shost(cdev);\
 724         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 725         struct lpfc_hba   *phba = vport->phba;\
 726         int val=0;\
 727         if (!isdigit(buf[0]))\
 728                 return -EINVAL;\
 729         if (sscanf(buf, "%i", &val) != 1)\
 730                 return -EINVAL;\
 731         if (lpfc_##attr##_set(phba, val) == 0) \
 732                 return strlen(buf);\
 733         else \
 734                 return -EINVAL;\
 735 }
 736
 737 #define lpfc_vport_param_show(attr)     \
 738 static ssize_t \
 739 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 740 { \
 741         struct Scsi_Host  *shost = class_to_shost(cdev);\
 742         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 743         int val = 0;\
 744         val = vport->cfg_##attr;\
 745         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 746 }
 747
 748 #define lpfc_vport_param_hex_show(attr) \
 749 static ssize_t \
 750 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 751 { \
 752         struct Scsi_Host  *shost = class_to_shost(cdev);\
 753         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 754         int val = 0;\
 755         val = vport->cfg_##attr;\
 756         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 757 }
 758
 759 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
 760 static int \
 761 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
 762 { \
 763         if (val >= minval && val <= maxval) {\
 764                 vport->cfg_##attr = val;\
 765                 return 0;\
 766         }\
 767         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 768                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 769                          "allowed range is ["#minval", "#maxval"]\n", val); \
 770         vport->cfg_##attr = default;\
 771         return -EINVAL;\
 772 }
 773
 774 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 775 static int \
 776 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 777 { \
 778         if (val >= minval && val <= maxval) {\
 779                 vport->cfg_##attr = val;\
 780                 return 0;\
 781         }\
 782         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 783                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 784                          "allowed range is ["#minval", "#maxval"]\n", val); \
 785         return -EINVAL;\
 786 }
 787
 788 #define lpfc_vport_param_store(attr)    \
 789 static ssize_t \
 790 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 791 { \
 792         struct Scsi_Host  *shost = class_to_shost(cdev);\
 793         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 794         int val=0;\
 795         if (!isdigit(buf[0]))\
 796                 return -EINVAL;\
 797         if (sscanf(buf, "%i", &val) != 1)\
 798                 return -EINVAL;\
 799         if (lpfc_##attr##_set(vport, val) == 0) \
 800                 return strlen(buf);\
 801         else \
 802                 return -EINVAL;\
 803 }
 804
 805
 806 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 807 static int lpfc_##name = defval;\
 808 module_param(lpfc_##name, int, 0);\
 809 MODULE_PARM_DESC(lpfc_##name, desc);\
 810 lpfc_param_init(name, defval, minval, maxval)
 811
 812 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 813 static int lpfc_##name = defval;\
 814 module_param(lpfc_##name, int, 0);\
 815 MODULE_PARM_DESC(lpfc_##name, desc);\
 816 lpfc_param_show(name)\
 817 lpfc_param_init(name, defval, minval, maxval)\
 818 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 819
 820 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 821 static int lpfc_##name = defval;\
 822 module_param(lpfc_##name, int, 0);\
 823 MODULE_PARM_DESC(lpfc_##name, desc);\
 824 lpfc_param_show(name)\
 825 lpfc_param_init(name, defval, minval, maxval)\
 826 lpfc_param_set(name, defval, minval, maxval)\
 827 lpfc_param_store(name)\
 828 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 829                          lpfc_##name##_show, lpfc_##name##_store)
 830
 831 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 832 static int lpfc_##name = defval;\
 833 module_param(lpfc_##name, int, 0);\
 834 MODULE_PARM_DESC(lpfc_##name, desc);\
 835 lpfc_param_hex_show(name)\
 836 lpfc_param_init(name, defval, minval, maxval)\
 837 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 838
 839 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 840 static int lpfc_##name = defval;\
 841 module_param(lpfc_##name, int, 0);\
 842 MODULE_PARM_DESC(lpfc_##name, desc);\
 843 lpfc_param_hex_show(name)\
 844 lpfc_param_init(name, defval, minval, maxval)\
 845 lpfc_param_set(name, defval, minval, maxval)\
 846 lpfc_param_store(name)\
 847 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 848                          lpfc_##name##_show, lpfc_##name##_store)
 849
 850 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 851 static int lpfc_##name = defval;\
 852 module_param(lpfc_##name, int, 0);\
 853 MODULE_PARM_DESC(lpfc_##name, desc);\
 854 lpfc_vport_param_init(name, defval, minval, maxval)
 855
 856 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 857 static int lpfc_##name = defval;\
 858 module_param(lpfc_##name, int, 0);\
 859 MODULE_PARM_DESC(lpfc_##name, desc);\
 860 lpfc_vport_param_show(name)\
 861 lpfc_vport_param_init(name, defval, minval, maxval)\
 862 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 863
 864 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 865 static int lpfc_##name = defval;\
 866 module_param(lpfc_##name, int, 0);\
 867 MODULE_PARM_DESC(lpfc_##name, desc);\
 868 lpfc_vport_param_show(name)\
 869 lpfc_vport_param_init(name, defval, minval, maxval)\
 870 lpfc_vport_param_set(name, defval, minval, maxval)\
 871 lpfc_vport_param_store(name)\
 872 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 873                          lpfc_##name##_show, lpfc_##name##_store)
 874
 875 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 876 static int lpfc_##name = defval;\
 877 module_param(lpfc_##name, int, 0);\
 878 MODULE_PARM_DESC(lpfc_##name, desc);\
 879 lpfc_vport_param_hex_show(name)\
 880 lpfc_vport_param_init(name, defval, minval, maxval)\
 881 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 882
 883 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 884 static int lpfc_##name = defval;\
 885 module_param(lpfc_##name, int, 0);\
 886 MODULE_PARM_DESC(lpfc_##name, desc);\
 887 lpfc_vport_param_hex_show(name)\
 888 lpfc_vport_param_init(name, defval, minval, maxval)\
 889 lpfc_vport_param_set(name, defval, minval, maxval)\
 890 lpfc_vport_param_store(name)\
 891 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 892                          lpfc_##name##_show, lpfc_##name##_store)
 893
 894 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 895 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 896 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 897 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 898 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 899 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 900 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 901 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 902 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 903 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 904                                         lpfc_option_rom_version_show, NULL);
 905 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 906                                         lpfc_num_discovered_ports_show, NULL);
 907 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 908 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 909                          NULL);
 910 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 911                          lpfc_board_mode_show, lpfc_board_mode_store);
 912 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 913 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 914 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 915 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 916 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 917 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 918 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 919 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 920 static CLASS_DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show,
 921                          NULL);
 922
 923
 924 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 925
 926 static ssize_t
 927 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 928                                 size_t count)
 929 {
 930         struct Scsi_Host  *shost = class_to_shost(cdev);
 931         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 932         struct lpfc_hba   *phba = vport->phba;
 933         unsigned int cnt = count;
 934
 935         /*
 936          * We're doing a simple sanity check for soft_wwpn setting.
 937          * We require that the user write a specific key to enable
 938          * the soft_wwpn attribute to be settable. Once the attribute
 939          * is written, the enable key resets. If further updates are
 940          * desired, the key must be written again to re-enable the
 941          * attribute.
 942          *
 943          * The "key" is not secret - it is a hardcoded string shown
 944          * here. The intent is to protect against the random user or
 945          * application that is just writing attributes.
 946          */
 947
 948         /* count may include a LF at end of string */
 949         if (buf[cnt-1] == '\n')
 950                 cnt--;
 951
 952         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 953             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 954                 return -EINVAL;
 955
 956         phba->soft_wwn_enable = 1;
 957         return count;
 958 }
 959 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 960                                 lpfc_soft_wwn_enable_store);
 961
 962 static ssize_t
 963 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 964 {
 965         struct Scsi_Host  *shost = class_to_shost(cdev);
 966         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 967         struct lpfc_hba   *phba = vport->phba;
 968
 969         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
 970                         (unsigned long long)phba->cfg_soft_wwpn);
 971 }
 972
 973
 974 static ssize_t
 975 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
 976 {
 977         struct Scsi_Host  *shost = class_to_shost(cdev);
 978         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 979         struct lpfc_hba   *phba = vport->phba;
 980         struct completion online_compl;
 981         int stat1=0, stat2=0;
 982         unsigned int i, j, cnt=count;
 983         u8 wwpn[8];
 984
 985         /* count may include a LF at end of string */
 986         if (buf[cnt-1] == '\n')
 987                 cnt--;
 988
 989         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 990             ((cnt == 17) && (*buf++ != 'x')) ||
 991             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 992                 return -EINVAL;
 993
 994         phba->soft_wwn_enable = 0;
 995
 996         memset(wwpn, 0, sizeof(wwpn));
 997
 998         /* Validate and store the new name */
 999         for (i=0, j=0; i < 16; i++) {
1000                 if ((*buf >= 'a') && (*buf <= 'f'))
1001                         j = ((j << 4) | ((*buf++ -'a') + 10));
1002                 else if ((*buf >= 'A') && (*buf <= 'F'))
1003                         j = ((j << 4) | ((*buf++ -'A') + 10));
1004                 else if ((*buf >= '0') && (*buf <= '9'))
1005                         j = ((j << 4) | (*buf++ -'0'));
1006                 else
1007                         return -EINVAL;
1008                 if (i % 2) {
1009                         wwpn[i/2] = j & 0xff;
1010                         j = 0;
1011                 }
1012         }
1013         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1014         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1015         if (phba->cfg_soft_wwnn)
1016                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1017
1018         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1019                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1020
1021         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1022         if (stat1)
1023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1024                                 "0463 lpfc_soft_wwpn attribute set failed to "
1025                                 "reinit adapter - %d\n", stat1);
1026         init_completion(&online_compl);
1027         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1028         wait_for_completion(&online_compl);
1029         if (stat2)
1030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1031                                 "0464 lpfc_soft_wwpn attribute set failed to "
1032                                 "reinit adapter - %d\n", stat2);
1033         return (stat1 || stat2) ? -EIO : count;
1034 }
1035 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1036                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1037
1038 static ssize_t
1039 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1040 {
1041         struct Scsi_Host *shost = class_to_shost(cdev);
1042         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1043         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1044                         (unsigned long long)phba->cfg_soft_wwnn);
1045 }
1046
1047
1048 static ssize_t
1049 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1050 {
1051         struct Scsi_Host *shost = class_to_shost(cdev);
1052         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1053         unsigned int i, j, cnt=count;
1054         u8 wwnn[8];
1055
1056         /* count may include a LF at end of string */
1057         if (buf[cnt-1] == '\n')
1058                 cnt--;
1059
1060         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1061             ((cnt == 17) && (*buf++ != 'x')) ||
1062             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1063                 return -EINVAL;
1064
1065         /*
1066          * Allow wwnn to be set many times, as long as the enable is set.
1067          * However, once the wwpn is set, everything locks.
1068          */
1069
1070         memset(wwnn, 0, sizeof(wwnn));
1071
1072         /* Validate and store the new name */
1073         for (i=0, j=0; i < 16; i++) {
1074                 if ((*buf >= 'a') && (*buf <= 'f'))
1075                         j = ((j << 4) | ((*buf++ -'a') + 10));
1076                 else if ((*buf >= 'A') && (*buf <= 'F'))
1077                         j = ((j << 4) | ((*buf++ -'A') + 10));
1078                 else if ((*buf >= '0') && (*buf <= '9'))
1079                         j = ((j << 4) | (*buf++ -'0'));
1080                 else
1081                         return -EINVAL;
1082                 if (i % 2) {
1083                         wwnn[i/2] = j & 0xff;
1084                         j = 0;
1085                 }
1086         }
1087         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1088
1089         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1090                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1091                    "setting of the soft_wwpn\n", phba->brd_no);
1092
1093         return count;
1094 }
1095 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1096                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1097
1098
1099 static int lpfc_poll = 0;
1100 module_param(lpfc_poll, int, 0);
1101 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1102                  " 0 - none,"
1103                  " 1 - poll with interrupts enabled"
1104                  " 3 - poll and disable FCP ring interrupts");
1105
1106 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1107                          lpfc_poll_show, lpfc_poll_store);
1108
1109 int  lpfc_sli_mode = 0;
1110 module_param(lpfc_sli_mode, int, 0);
1111 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1112                  " 0 - auto (SLI-3 if supported),"
1113                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1114                  " 3 - select SLI-3");
1115
1116 int lpfc_enable_npiv = 0;
1117 module_param(lpfc_enable_npiv, int, 0);
1118 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1119 lpfc_param_show(enable_npiv);
1120 lpfc_param_init(enable_npiv, 0, 0, 1);
1121 static CLASS_DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO,
1122                          lpfc_enable_npiv_show, NULL);
1123
1124 /*
1125 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1126 # until the timer expires. Value range is [0,255]. Default value is 30.
1127 */
1128 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1129 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1130 module_param(lpfc_nodev_tmo, int, 0);
1131 MODULE_PARM_DESC(lpfc_nodev_tmo,
1132                  "Seconds driver will hold I/O waiting "
1133                  "for a device to come back");
1134 static ssize_t
1135 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1136 {
1137         struct Scsi_Host  *shost = class_to_shost(cdev);
1138         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1139         int val = 0;
1140         val = vport->cfg_devloss_tmo;
1141         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1142 }
1143
1144 static int
1145 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1146 {
1147         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1148                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1149                 if (val != LPFC_DEF_DEVLOSS_TMO)
1150                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1151                                          "0402 Ignoring nodev_tmo module "
1152                                          "parameter because devloss_tmo is "
1153                                          "set.\n");
1154                 return 0;
1155         }
1156
1157         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1158                 vport->cfg_nodev_tmo = val;
1159                 vport->cfg_devloss_tmo = val;
1160                 return 0;
1161         }
1162         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1163                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1164                          " %d, allowed range is [%d, %d]\n",
1165                          val, 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 Scsi_Host  *shost;
1174         struct lpfc_nodelist  *ndlp;
1175
1176         shost = lpfc_shost_from_vport(vport);
1177         spin_lock_irq(shost->host_lock);
1178         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
1179                 if (ndlp->rport)
1180                         ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
1181         spin_unlock_irq(shost->host_lock);
1182 }
1183
1184 static int
1185 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1186 {
1187         if (vport->dev_loss_tmo_changed ||
1188             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1189                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1190                                  "0401 Ignoring change to nodev_tmo "
1191                                  "because devloss_tmo is set.\n");
1192                 return 0;
1193         }
1194         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1195                 vport->cfg_nodev_tmo = val;
1196                 vport->cfg_devloss_tmo = val;
1197                 lpfc_update_rport_devloss_tmo(vport);
1198                 return 0;
1199         }
1200         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1201                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1202                          "%d, allowed range is [%d, %d]\n",
1203                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1204         return -EINVAL;
1205 }
1206
1207 lpfc_vport_param_store(nodev_tmo)
1208
1209 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1210                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1211
1212 /*
1213 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1214 # disappear until the timer expires. Value range is [0,255]. Default
1215 # value is 30.
1216 */
1217 module_param(lpfc_devloss_tmo, int, 0);
1218 MODULE_PARM_DESC(lpfc_devloss_tmo,
1219                  "Seconds driver will hold I/O waiting "
1220                  "for a device to come back");
1221 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1222                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1223 lpfc_vport_param_show(devloss_tmo)
1224 static int
1225 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1226 {
1227         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1228                 vport->cfg_nodev_tmo = val;
1229                 vport->cfg_devloss_tmo = val;
1230                 vport->dev_loss_tmo_changed = 1;
1231                 lpfc_update_rport_devloss_tmo(vport);
1232                 return 0;
1233         }
1234
1235         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1236                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1237                          " %d, allowed range is [%d, %d]\n",
1238                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1239         return -EINVAL;
1240 }
1241
1242 lpfc_vport_param_store(devloss_tmo)
1243 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1244         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1245
1246 /*
1247 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1248 # deluged with LOTS of information.
1249 # You can set a bit mask to record specific types of verbose messages:
1250 #
1251 # LOG_ELS                       0x1        ELS events
1252 # LOG_DISCOVERY                 0x2        Link discovery events
1253 # LOG_MBOX                      0x4        Mailbox events
1254 # LOG_INIT                      0x8        Initialization events
1255 # LOG_LINK_EVENT                0x10       Link events
1256 # LOG_FCP                       0x40       FCP traffic history
1257 # LOG_NODE                      0x80       Node table events
1258 # LOG_MISC                      0x400      Miscellaneous events
1259 # LOG_SLI                       0x800      SLI events
1260 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1261 # LOG_LIBDFC                    0x2000     LIBDFC events
1262 # LOG_ALL_MSG                   0xffff     LOG all messages
1263 */
1264 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1265                        "Verbose logging bit-mask");
1266
1267 /*
1268 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
1269 # objects that have been registered with the nameserver after login.
1270 */
1271 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
1272                   "Deregister nameserver objects before LOGO");
1273
1274 /*
1275 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1276 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1277 */
1278 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1279                   "Max number of FCP commands we can queue to a specific LUN");
1280
1281 /*
1282 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1283 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1284 # value is greater than the maximum number of exchanges supported by the HBA,
1285 # then maximum number of exchanges supported by the HBA is used to determine
1286 # the hba_queue_depth.
1287 */
1288 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1289             "Max number of FCP commands we can queue to a lpfc HBA");
1290
1291 /*
1292 # peer_port_login:  This parameter allows/prevents logins
1293 # between peer ports hosted on the same physical port.
1294 # When this parameter is set 0 peer ports of same physical port
1295 # are not allowed to login to each other.
1296 # When this parameter is set 1 peer ports of same physical port
1297 # are allowed to login to each other.
1298 # Default value of this parameter is 0.
1299 */
1300 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1301                   "Allow peer ports on the same physical port to login to each "
1302                   "other.");
1303
1304 /*
1305 # restrict_login:  This parameter allows/prevents logins
1306 # between Virtual Ports and remote initiators.
1307 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1308 # other initiators and will attempt to PLOGI all remote ports.
1309 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1310 # remote ports and will not attempt to PLOGI to other initiators.
1311 # This parameter does not restrict to the physical port.
1312 # This parameter does not restrict logins to Fabric resident remote ports.
1313 # Default value of this parameter is 1.
1314 */
1315 static int lpfc_restrict_login = 1;
1316 module_param(lpfc_restrict_login, int, 0);
1317 MODULE_PARM_DESC(lpfc_restrict_login,
1318                  "Restrict virtual ports login to remote initiators.");
1319 lpfc_vport_param_show(restrict_login);
1320
1321 static int
1322 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1323 {
1324         if (val < 0 || val > 1) {
1325                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1326                                  "0449 lpfc_restrict_login attribute cannot "
1327                                  "be set to %d, allowed range is [0, 1]\n",
1328                                  val);
1329                 vport->cfg_restrict_login = 1;
1330                 return -EINVAL;
1331         }
1332         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1333                 vport->cfg_restrict_login = 0;
1334                 return 0;
1335         }
1336         vport->cfg_restrict_login = val;
1337         return 0;
1338 }
1339
1340 static int
1341 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1342 {
1343         if (val < 0 || val > 1) {
1344                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1345                                  "0450 lpfc_restrict_login attribute cannot "
1346                                  "be set to %d, allowed range is [0, 1]\n",
1347                                  val);
1348                 vport->cfg_restrict_login = 1;
1349                 return -EINVAL;
1350         }
1351         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1352                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1353                                  "0468 lpfc_restrict_login must be 0 for "
1354                                  "Physical ports.\n");
1355                 vport->cfg_restrict_login = 0;
1356                 return 0;
1357         }
1358         vport->cfg_restrict_login = val;
1359         return 0;
1360 }
1361 lpfc_vport_param_store(restrict_login);
1362 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1363                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1364
1365 /*
1366 # Some disk devices have a "select ID" or "select Target" capability.
1367 # From a protocol standpoint "select ID" usually means select the
1368 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1369 # annex" which contains a table that maps a "select ID" (a number
1370 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1371 # older drivers, the lpfc driver scans this table from low ALPA to high
1372 # ALPA.
1373 #
1374 # Turning on the scan-down variable (on  = 1, off = 0) will
1375 # cause the lpfc driver to use an inverted table, effectively
1376 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1377 #
1378 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1379 # and will not work across a fabric. Also this parameter will take
1380 # effect only in the case when ALPA map is not available.)
1381 */
1382 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1383                   "Start scanning for devices from highest ALPA to lowest");
1384
1385 /*
1386 # lpfc_topology:  link topology for init link
1387 #            0x0  = attempt loop mode then point-to-point
1388 #            0x01 = internal loopback mode
1389 #            0x02 = attempt point-to-point mode only
1390 #            0x04 = attempt loop mode only
1391 #            0x06 = attempt point-to-point mode then loop
1392 # Set point-to-point mode if you want to run as an N_Port.
1393 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1394 # Default value is 0.
1395 */
1396 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1397
1398 /*
1399 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1400 # connection.
1401 #       0  = auto select (default)
1402 #       1  = 1 Gigabaud
1403 #       2  = 2 Gigabaud
1404 #       4  = 4 Gigabaud
1405 #       8  = 8 Gigabaud
1406 # Value range is [0,8]. Default value is 0.
1407 */
1408 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1409
1410 /*
1411 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1412 # Value range is [2,3]. Default value is 3.
1413 */
1414 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1415                   "Select Fibre Channel class of service for FCP sequences");
1416
1417 /*
1418 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1419 # is [0,1]. Default value is 0.
1420 */
1421 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1422                    "Use ADISC on rediscovery to authenticate FCP devices");
1423
1424 /*
1425 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1426 # range is [0,1]. Default value is 0.
1427 */
1428 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1429
1430 /*
1431 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1432 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1433 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1434 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1435 # cr_delay is set to 0.
1436 */
1437 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1438                 "interrupt response is generated");
1439
1440 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1441                 "interrupt response is generated");
1442
1443 /*
1444 # lpfc_multi_ring_support:  Determines how many rings to spread available
1445 # cmd/rsp IOCB entries across.
1446 # Value range is [1,2]. Default value is 1.
1447 */
1448 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1449                 "SLI rings to spread IOCB entries across");
1450
1451 /*
1452 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1453 # identifies what rctl value to configure the additional ring for.
1454 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1455 */
1456 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1457              255, "Identifies RCTL for additional ring configuration");
1458
1459 /*
1460 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1461 # identifies what type value to configure the additional ring for.
1462 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1463 */
1464 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1465              255, "Identifies TYPE for additional ring configuration");
1466
1467 /*
1468 # lpfc_fdmi_on: controls FDMI support.
1469 #       0 = no FDMI support
1470 #       1 = support FDMI without attribute of hostname
1471 #       2 = support FDMI with attribute of hostname
1472 # Value range [0,2]. Default value is 0.
1473 */
1474 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1475
1476 /*
1477 # Specifies the maximum number of ELS cmds we can have outstanding (for
1478 # discovery). Value range is [1,64]. Default value = 32.
1479 */
1480 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1481                  "during discovery");
1482
1483 /*
1484 # lpfc_max_luns: maximum allowed LUN.
1485 # Value range is [0,65535]. Default value is 255.
1486 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1487 */
1488 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1489
1490 /*
1491 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1492 # Value range is [1,255], default value is 10.
1493 */
1494 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1495              "Milliseconds driver will wait between polling FCP ring");
1496
1497 /*
1498 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1499 #               support this feature
1500 #       0  = MSI disabled (default)
1501 #       1  = MSI enabled
1502 # Value range is [0,1]. Default value is 0.
1503 */
1504 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1505
1506
1507
1508 struct class_device_attribute *lpfc_hba_attrs[] = {
1509         &class_device_attr_info,
1510         &class_device_attr_serialnum,
1511         &class_device_attr_modeldesc,
1512         &class_device_attr_modelname,
1513         &class_device_attr_programtype,
1514         &class_device_attr_portnum,
1515         &class_device_attr_fwrev,
1516         &class_device_attr_hdw,
1517         &class_device_attr_option_rom_version,
1518         &class_device_attr_state,
1519         &class_device_attr_num_discovered_ports,
1520         &class_device_attr_lpfc_drvr_version,
1521         &class_device_attr_lpfc_temp_sensor,
1522         &class_device_attr_lpfc_log_verbose,
1523         &class_device_attr_lpfc_lun_queue_depth,
1524         &class_device_attr_lpfc_hba_queue_depth,
1525         &class_device_attr_lpfc_peer_port_login,
1526         &class_device_attr_lpfc_nodev_tmo,
1527         &class_device_attr_lpfc_devloss_tmo,
1528         &class_device_attr_lpfc_fcp_class,
1529         &class_device_attr_lpfc_use_adisc,
1530         &class_device_attr_lpfc_ack0,
1531         &class_device_attr_lpfc_topology,
1532         &class_device_attr_lpfc_scan_down,
1533         &class_device_attr_lpfc_link_speed,
1534         &class_device_attr_lpfc_cr_delay,
1535         &class_device_attr_lpfc_cr_count,
1536         &class_device_attr_lpfc_multi_ring_support,
1537         &class_device_attr_lpfc_multi_ring_rctl,
1538         &class_device_attr_lpfc_multi_ring_type,
1539         &class_device_attr_lpfc_fdmi_on,
1540         &class_device_attr_lpfc_max_luns,
1541         &class_device_attr_lpfc_enable_npiv,
1542         &class_device_attr_nport_evt_cnt,
1543         &class_device_attr_board_mode,
1544         &class_device_attr_max_vpi,
1545         &class_device_attr_used_vpi,
1546         &class_device_attr_max_rpi,
1547         &class_device_attr_used_rpi,
1548         &class_device_attr_max_xri,
1549         &class_device_attr_used_xri,
1550         &class_device_attr_npiv_info,
1551         &class_device_attr_issue_reset,
1552         &class_device_attr_lpfc_poll,
1553         &class_device_attr_lpfc_poll_tmo,
1554         &class_device_attr_lpfc_use_msi,
1555         &class_device_attr_lpfc_soft_wwnn,
1556         &class_device_attr_lpfc_soft_wwpn,
1557         &class_device_attr_lpfc_soft_wwn_enable,
1558         NULL,
1559 };
1560
1561 struct class_device_attribute *lpfc_vport_attrs[] = {
1562         &class_device_attr_info,
1563         &class_device_attr_state,
1564         &class_device_attr_num_discovered_ports,
1565         &class_device_attr_lpfc_drvr_version,
1566
1567         &class_device_attr_lpfc_log_verbose,
1568         &class_device_attr_lpfc_lun_queue_depth,
1569         &class_device_attr_lpfc_nodev_tmo,
1570         &class_device_attr_lpfc_devloss_tmo,
1571         &class_device_attr_lpfc_hba_queue_depth,
1572         &class_device_attr_lpfc_peer_port_login,
1573         &class_device_attr_lpfc_restrict_login,
1574         &class_device_attr_lpfc_fcp_class,
1575         &class_device_attr_lpfc_use_adisc,
1576         &class_device_attr_lpfc_fdmi_on,
1577         &class_device_attr_lpfc_max_luns,
1578         &class_device_attr_nport_evt_cnt,
1579         &class_device_attr_npiv_info,
1580         &class_device_attr_lpfc_enable_da_id,
1581         NULL,
1582 };
1583
1584 static ssize_t
1585 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1586                    char *buf, loff_t off, size_t count)
1587 {
1588         size_t buf_off;
1589         struct class_device *cdev = container_of(kobj, struct class_device,
1590                                                  kobj);
1591         struct Scsi_Host  *shost = class_to_shost(cdev);
1592         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1593         struct lpfc_hba   *phba = vport->phba;
1594
1595         if ((off + count) > FF_REG_AREA_SIZE)
1596                 return -ERANGE;
1597
1598         if (count == 0) return 0;
1599
1600         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1601                 return -EINVAL;
1602
1603         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1604                 return -EPERM;
1605         }
1606
1607         spin_lock_irq(&phba->hbalock);
1608         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1609                 writel(*((uint32_t *)(buf + buf_off)),
1610                        phba->ctrl_regs_memmap_p + off + buf_off);
1611
1612         spin_unlock_irq(&phba->hbalock);
1613
1614         return count;
1615 }
1616
1617 static ssize_t
1618 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1619                   char *buf, loff_t off, size_t count)
1620 {
1621         size_t buf_off;
1622         uint32_t * tmp_ptr;
1623         struct class_device *cdev = container_of(kobj, struct class_device,
1624                                                  kobj);
1625         struct Scsi_Host  *shost = class_to_shost(cdev);
1626         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1627         struct lpfc_hba   *phba = vport->phba;
1628
1629         if (off > FF_REG_AREA_SIZE)
1630                 return -ERANGE;
1631
1632         if ((off + count) > FF_REG_AREA_SIZE)
1633                 count = FF_REG_AREA_SIZE - off;
1634
1635         if (count == 0) return 0;
1636
1637         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1638                 return -EINVAL;
1639
1640         spin_lock_irq(&phba->hbalock);
1641
1642         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1643                 tmp_ptr = (uint32_t *)(buf + buf_off);
1644                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1645         }
1646
1647         spin_unlock_irq(&phba->hbalock);
1648
1649         return count;
1650 }
1651
1652 static struct bin_attribute sysfs_ctlreg_attr = {
1653         .attr = {
1654                 .name = "ctlreg",
1655                 .mode = S_IRUSR | S_IWUSR,
1656         },
1657         .size = 256,
1658         .read = sysfs_ctlreg_read,
1659         .write = sysfs_ctlreg_write,
1660 };
1661
1662
1663 static void
1664 sysfs_mbox_idle(struct lpfc_hba *phba)
1665 {
1666         phba->sysfs_mbox.state = SMBOX_IDLE;
1667         phba->sysfs_mbox.offset = 0;
1668
1669         if (phba->sysfs_mbox.mbox) {
1670                 mempool_free(phba->sysfs_mbox.mbox,
1671                              phba->mbox_mem_pool);
1672                 phba->sysfs_mbox.mbox = NULL;
1673         }
1674 }
1675
1676 static ssize_t
1677 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1678                  char *buf, loff_t off, size_t count)
1679 {
1680         struct class_device *cdev = container_of(kobj, struct class_device,
1681                                                  kobj);
1682         struct Scsi_Host  *shost = class_to_shost(cdev);
1683         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1684         struct lpfc_hba   *phba = vport->phba;
1685         struct lpfcMboxq  *mbox = NULL;
1686
1687         if ((count + off) > MAILBOX_CMD_SIZE)
1688                 return -ERANGE;
1689
1690         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1691                 return -EINVAL;
1692
1693         if (count == 0)
1694                 return 0;
1695
1696         if (off == 0) {
1697                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1698                 if (!mbox)
1699                         return -ENOMEM;
1700                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1701         }
1702
1703         spin_lock_irq(&phba->hbalock);
1704
1705         if (off == 0) {
1706                 if (phba->sysfs_mbox.mbox)
1707                         mempool_free(mbox, phba->mbox_mem_pool);
1708                 else
1709                         phba->sysfs_mbox.mbox = mbox;
1710                 phba->sysfs_mbox.state = SMBOX_WRITING;
1711         } else {
1712                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1713                     phba->sysfs_mbox.offset != off           ||
1714                     phba->sysfs_mbox.mbox   == NULL) {
1715                         sysfs_mbox_idle(phba);
1716                         spin_unlock_irq(&phba->hbalock);
1717                         return -EAGAIN;
1718                 }
1719         }
1720
1721         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1722                buf, count);
1723
1724         phba->sysfs_mbox.offset = off + count;
1725
1726         spin_unlock_irq(&phba->hbalock);
1727
1728         return count;
1729 }
1730
1731 static ssize_t
1732 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1733                 char *buf, loff_t off, size_t count)
1734 {
1735         struct class_device *cdev = container_of(kobj, struct class_device,
1736                                                  kobj);
1737         struct Scsi_Host  *shost = class_to_shost(cdev);
1738         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1739         struct lpfc_hba   *phba = vport->phba;
1740         int rc;
1741
1742         if (off > MAILBOX_CMD_SIZE)
1743                 return -ERANGE;
1744
1745         if ((count + off) > MAILBOX_CMD_SIZE)
1746                 count = MAILBOX_CMD_SIZE - off;
1747
1748         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1749                 return -EINVAL;
1750
1751         if (off && count == 0)
1752                 return 0;
1753
1754         spin_lock_irq(&phba->hbalock);
1755
1756         if (off == 0 &&
1757             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1758             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1759
1760                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1761                         /* Offline only */
1762                 case MBX_WRITE_NV:
1763                 case MBX_INIT_LINK:
1764                 case MBX_DOWN_LINK:
1765                 case MBX_CONFIG_LINK:
1766                 case MBX_CONFIG_RING:
1767                 case MBX_RESET_RING:
1768                 case MBX_UNREG_LOGIN:
1769                 case MBX_CLEAR_LA:
1770                 case MBX_DUMP_CONTEXT:
1771                 case MBX_RUN_DIAGS:
1772                 case MBX_RESTART:
1773                 case MBX_FLASH_WR_ULA:
1774                 case MBX_SET_MASK:
1775                 case MBX_SET_SLIM:
1776                 case MBX_SET_DEBUG:
1777                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1778                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1779                                        "is illegal in on-line state\n",
1780                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1781                                 sysfs_mbox_idle(phba);
1782                                 spin_unlock_irq(&phba->hbalock);
1783                                 return -EPERM;
1784                         }
1785                 case MBX_LOAD_SM:
1786                 case MBX_READ_NV:
1787                 case MBX_READ_CONFIG:
1788                 case MBX_READ_RCONFIG:
1789                 case MBX_READ_STATUS:
1790                 case MBX_READ_XRI:
1791                 case MBX_READ_REV:
1792                 case MBX_READ_LNK_STAT:
1793                 case MBX_DUMP_MEMORY:
1794                 case MBX_DOWN_LOAD:
1795                 case MBX_UPDATE_CFG:
1796                 case MBX_KILL_BOARD:
1797                 case MBX_LOAD_AREA:
1798                 case MBX_LOAD_EXP_ROM:
1799                 case MBX_BEACON:
1800                 case MBX_DEL_LD_ENTRY:
1801                         break;
1802                 case MBX_READ_SPARM64:
1803                 case MBX_READ_LA:
1804                 case MBX_READ_LA64:
1805                 case MBX_REG_LOGIN:
1806                 case MBX_REG_LOGIN64:
1807                 case MBX_CONFIG_PORT:
1808                 case MBX_RUN_BIU_DIAG:
1809                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1810                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1811                         sysfs_mbox_idle(phba);
1812                         spin_unlock_irq(&phba->hbalock);
1813                         return -EPERM;
1814                 default:
1815                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1816                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1817                         sysfs_mbox_idle(phba);
1818                         spin_unlock_irq(&phba->hbalock);
1819                         return -EPERM;
1820                 }
1821
1822                 phba->sysfs_mbox.mbox->vport = vport;
1823
1824                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1825                         sysfs_mbox_idle(phba);
1826                         spin_unlock_irq(&phba->hbalock);
1827                         return  -EAGAIN;
1828                 }
1829
1830                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1831                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1832
1833                         spin_unlock_irq(&phba->hbalock);
1834                         rc = lpfc_sli_issue_mbox (phba,
1835                                                   phba->sysfs_mbox.mbox,
1836                                                   MBX_POLL);
1837                         spin_lock_irq(&phba->hbalock);
1838
1839                 } else {
1840                         spin_unlock_irq(&phba->hbalock);
1841                         rc = lpfc_sli_issue_mbox_wait (phba,
1842                                                        phba->sysfs_mbox.mbox,
1843                                 lpfc_mbox_tmo_val(phba,
1844                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1845                         spin_lock_irq(&phba->hbalock);
1846                 }
1847
1848                 if (rc != MBX_SUCCESS) {
1849                         if (rc == MBX_TIMEOUT) {
1850                                 phba->sysfs_mbox.mbox = NULL;
1851                         }
1852                         sysfs_mbox_idle(phba);
1853                         spin_unlock_irq(&phba->hbalock);
1854                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1855                 }
1856                 phba->sysfs_mbox.state = SMBOX_READING;
1857         }
1858         else if (phba->sysfs_mbox.offset != off ||
1859                  phba->sysfs_mbox.state  != SMBOX_READING) {
1860                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1861                 sysfs_mbox_idle(phba);
1862                 spin_unlock_irq(&phba->hbalock);
1863                 return -EAGAIN;
1864         }
1865
1866         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1867
1868         phba->sysfs_mbox.offset = off + count;
1869
1870         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1871                 sysfs_mbox_idle(phba);
1872
1873         spin_unlock_irq(&phba->hbalock);
1874
1875         return count;
1876 }
1877
1878 static struct bin_attribute sysfs_mbox_attr = {
1879         .attr = {
1880                 .name = "mbox",
1881                 .mode = S_IRUSR | S_IWUSR,
1882         },
1883         .size = MAILBOX_CMD_SIZE,
1884         .read = sysfs_mbox_read,
1885         .write = sysfs_mbox_write,
1886 };
1887
1888 int
1889 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1890 {
1891         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1892         int error;
1893
1894         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1895                                       &sysfs_ctlreg_attr);
1896         if (error)
1897                 goto out;
1898
1899         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1900                                       &sysfs_mbox_attr);
1901         if (error)
1902                 goto out_remove_ctlreg_attr;
1903
1904         return 0;
1905 out_remove_ctlreg_attr:
1906         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1907 out:
1908         return error;
1909 }
1910
1911 void
1912 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1913 {
1914         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1915
1916         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1917         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1918 }
1919
1920
1921 /*
1922  * Dynamic FC Host Attributes Support
1923  */
1924
1925 static void
1926 lpfc_get_host_port_id(struct Scsi_Host *shost)
1927 {
1928         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1929
1930         /* note: fc_myDID already in cpu endianness */
1931         fc_host_port_id(shost) = vport->fc_myDID;
1932 }
1933
1934 static void
1935 lpfc_get_host_port_type(struct Scsi_Host *shost)
1936 {
1937         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1938         struct lpfc_hba   *phba = vport->phba;
1939
1940         spin_lock_irq(shost->host_lock);
1941
1942         if (vport->port_type == LPFC_NPIV_PORT) {
1943                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1944         } else if (lpfc_is_link_up(phba)) {
1945                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1946                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1947                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1948                         else
1949                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1950                 } else {
1951                         if (vport->fc_flag & FC_FABRIC)
1952                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1953                         else
1954                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1955                 }
1956         } else
1957                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1958
1959         spin_unlock_irq(shost->host_lock);
1960 }
1961
1962 static void
1963 lpfc_get_host_port_state(struct Scsi_Host *shost)
1964 {
1965         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1966         struct lpfc_hba   *phba = vport->phba;
1967
1968         spin_lock_irq(shost->host_lock);
1969
1970         if (vport->fc_flag & FC_OFFLINE_MODE)
1971                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1972         else {
1973                 switch (phba->link_state) {
1974                 case LPFC_LINK_UNKNOWN:
1975                 case LPFC_LINK_DOWN:
1976                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1977                         break;
1978                 case LPFC_LINK_UP:
1979                 case LPFC_CLEAR_LA:
1980                 case LPFC_HBA_READY:
1981                         /* Links up, beyond this port_type reports state */
1982                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1983                         break;
1984                 case LPFC_HBA_ERROR:
1985                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1986                         break;
1987                 default:
1988                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1989                         break;
1990                 }
1991         }
1992
1993         spin_unlock_irq(shost->host_lock);
1994 }
1995
1996 static void
1997 lpfc_get_host_speed(struct Scsi_Host *shost)
1998 {
1999         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2000         struct lpfc_hba   *phba = vport->phba;
2001
2002         spin_lock_irq(shost->host_lock);
2003
2004         if (lpfc_is_link_up(phba)) {
2005                 switch(phba->fc_linkspeed) {
2006                         case LA_1GHZ_LINK:
2007                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
2008                         break;
2009                         case LA_2GHZ_LINK:
2010                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
2011                         break;
2012                         case LA_4GHZ_LINK:
2013                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
2014                         break;
2015                         case LA_8GHZ_LINK:
2016                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2017                         break;
2018                         default:
2019                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2020                         break;
2021                 }
2022         }
2023
2024         spin_unlock_irq(shost->host_lock);
2025 }
2026
2027 static void
2028 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2029 {
2030         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2031         struct lpfc_hba   *phba = vport->phba;
2032         u64 node_name;
2033
2034         spin_lock_irq(shost->host_lock);
2035
2036         if ((vport->fc_flag & FC_FABRIC) ||
2037             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2038              (vport->fc_flag & FC_PUBLIC_LOOP)))
2039                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2040         else
2041                 /* fabric is local port if there is no F/FL_Port */
2042                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2043
2044         spin_unlock_irq(shost->host_lock);
2045
2046         fc_host_fabric_name(shost) = node_name;
2047 }
2048
2049 static struct fc_host_statistics *
2050 lpfc_get_stats(struct Scsi_Host *shost)
2051 {
2052         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2053         struct lpfc_hba   *phba = vport->phba;
2054         struct lpfc_sli   *psli = &phba->sli;
2055         struct fc_host_statistics *hs = &phba->link_stats;
2056         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2057         LPFC_MBOXQ_t *pmboxq;
2058         MAILBOX_t *pmb;
2059         unsigned long seconds;
2060         int rc = 0;
2061
2062         /*
2063          * prevent udev from issuing mailbox commands until the port is
2064          * configured.
2065          */
2066         if (phba->link_state < LPFC_LINK_DOWN ||
2067             !phba->mbox_mem_pool ||
2068             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2069                 return NULL;
2070
2071         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2072                 return NULL;
2073
2074         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2075         if (!pmboxq)
2076                 return NULL;
2077         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2078
2079         pmb = &pmboxq->mb;
2080         pmb->mbxCommand = MBX_READ_STATUS;
2081         pmb->mbxOwner = OWN_HOST;
2082         pmboxq->context1 = NULL;
2083         pmboxq->vport = vport;
2084
2085         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2086                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2087                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2088         else
2089                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2090
2091         if (rc != MBX_SUCCESS) {
2092                 if (rc != MBX_TIMEOUT)
2093                         mempool_free(pmboxq, phba->mbox_mem_pool);
2094                 return NULL;
2095         }
2096
2097         memset(hs, 0, sizeof (struct fc_host_statistics));
2098
2099         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2100         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2101         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2102         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2103
2104         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2105         pmb->mbxCommand = MBX_READ_LNK_STAT;
2106         pmb->mbxOwner = OWN_HOST;
2107         pmboxq->context1 = NULL;
2108         pmboxq->vport = vport;
2109
2110         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2111             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2112                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2113         else
2114                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2115
2116         if (rc != MBX_SUCCESS) {
2117                 if (rc != MBX_TIMEOUT)
2118                         mempool_free(pmboxq, phba->mbox_mem_pool);
2119                 return NULL;
2120         }
2121
2122         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2123         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2124         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2125         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2126         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2127         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2128         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2129
2130         hs->link_failure_count -= lso->link_failure_count;
2131         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2132         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2133         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2134         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2135         hs->invalid_crc_count -= lso->invalid_crc_count;
2136         hs->error_frames -= lso->error_frames;
2137
2138         if (phba->fc_topology == TOPOLOGY_LOOP) {
2139                 hs->lip_count = (phba->fc_eventTag >> 1);
2140                 hs->lip_count -= lso->link_events;
2141                 hs->nos_count = -1;
2142         } else {
2143                 hs->lip_count = -1;
2144                 hs->nos_count = (phba->fc_eventTag >> 1);
2145                 hs->nos_count -= lso->link_events;
2146         }
2147
2148         hs->dumped_frames = -1;
2149
2150         seconds = get_seconds();
2151         if (seconds < psli->stats_start)
2152                 hs->seconds_since_last_reset = seconds +
2153                                 ((unsigned long)-1 - psli->stats_start);
2154         else
2155                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2156
2157         mempool_free(pmboxq, phba->mbox_mem_pool);
2158
2159         return hs;
2160 }
2161
2162 static void
2163 lpfc_reset_stats(struct Scsi_Host *shost)
2164 {
2165         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2166         struct lpfc_hba   *phba = vport->phba;
2167         struct lpfc_sli   *psli = &phba->sli;
2168         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2169         LPFC_MBOXQ_t *pmboxq;
2170         MAILBOX_t *pmb;
2171         int rc = 0;
2172
2173         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2174                 return;
2175
2176         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2177         if (!pmboxq)
2178                 return;
2179         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2180
2181         pmb = &pmboxq->mb;
2182         pmb->mbxCommand = MBX_READ_STATUS;
2183         pmb->mbxOwner = OWN_HOST;
2184         pmb->un.varWords[0] = 0x1; /* reset request */
2185         pmboxq->context1 = NULL;
2186         pmboxq->vport = vport;
2187
2188         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2189                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2190                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2191         else
2192                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2193
2194         if (rc != MBX_SUCCESS) {
2195                 if (rc != MBX_TIMEOUT)
2196                         mempool_free(pmboxq, phba->mbox_mem_pool);
2197                 return;
2198         }
2199
2200         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2201         pmb->mbxCommand = MBX_READ_LNK_STAT;
2202         pmb->mbxOwner = OWN_HOST;
2203         pmboxq->context1 = NULL;
2204         pmboxq->vport = vport;
2205
2206         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2207             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2208                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2209         else
2210                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2211
2212         if (rc != MBX_SUCCESS) {
2213                 if (rc != MBX_TIMEOUT)
2214                         mempool_free( pmboxq, phba->mbox_mem_pool);
2215                 return;
2216         }
2217
2218         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2219         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2220         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2221         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2222         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2223         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2224         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2225         lso->link_events = (phba->fc_eventTag >> 1);
2226
2227         psli->stats_start = get_seconds();
2228
2229         mempool_free(pmboxq, phba->mbox_mem_pool);
2230
2231         return;
2232 }
2233
2234 /*
2235  * The LPFC driver treats linkdown handling as target loss events so there
2236  * are no sysfs handlers for link_down_tmo.
2237  */
2238
2239 static struct lpfc_nodelist *
2240 lpfc_get_node_by_target(struct scsi_target *starget)
2241 {
2242         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2243         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2244         struct lpfc_nodelist *ndlp;
2245
2246         spin_lock_irq(shost->host_lock);
2247         /* Search for this, mapped, target ID */
2248         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2249                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2250                     starget->id == ndlp->nlp_sid) {
2251                         spin_unlock_irq(shost->host_lock);
2252                         return ndlp;
2253                 }
2254         }
2255         spin_unlock_irq(shost->host_lock);
2256         return NULL;
2257 }
2258
2259 static void
2260 lpfc_get_starget_port_id(struct scsi_target *starget)
2261 {
2262         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2263
2264         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2265 }
2266
2267 static void
2268 lpfc_get_starget_node_name(struct scsi_target *starget)
2269 {
2270         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2271
2272         fc_starget_node_name(starget) =
2273                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2274 }
2275
2276 static void
2277 lpfc_get_starget_port_name(struct scsi_target *starget)
2278 {
2279         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2280
2281         fc_starget_port_name(starget) =
2282                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2283 }
2284
2285 static void
2286 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2287 {
2288         if (timeout)
2289                 rport->dev_loss_tmo = timeout;
2290         else
2291                 rport->dev_loss_tmo = 1;
2292 }
2293
2294
2295 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2296 static ssize_t                                                          \
2297 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2298 {                                                                       \
2299         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2300         struct lpfc_rport_data *rdata = rport->hostdata;                \
2301         return snprintf(buf, sz, format_string,                         \
2302                 (rdata->target) ? cast rdata->target->field : 0);       \
2303 }
2304
2305 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2306         lpfc_rport_show_function(field, format_string, sz, )            \
2307 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2308
2309
2310 struct fc_function_template lpfc_transport_functions = {
2311         /* fixed attributes the driver supports */
2312         .show_host_node_name = 1,
2313         .show_host_port_name = 1,
2314         .show_host_supported_classes = 1,
2315         .show_host_supported_fc4s = 1,
2316         .show_host_supported_speeds = 1,
2317         .show_host_maxframe_size = 1,
2318
2319         /* dynamic attributes the driver supports */
2320         .get_host_port_id = lpfc_get_host_port_id,
2321         .show_host_port_id = 1,
2322
2323         .get_host_port_type = lpfc_get_host_port_type,
2324         .show_host_port_type = 1,
2325
2326         .get_host_port_state = lpfc_get_host_port_state,
2327         .show_host_port_state = 1,
2328
2329         /* active_fc4s is shown but doesn't change (thus no get function) */
2330         .show_host_active_fc4s = 1,
2331
2332         .get_host_speed = lpfc_get_host_speed,
2333         .show_host_speed = 1,
2334
2335         .get_host_fabric_name = lpfc_get_host_fabric_name,
2336         .show_host_fabric_name = 1,
2337
2338         /*
2339          * The LPFC driver treats linkdown handling as target loss events
2340          * so there are no sysfs handlers for link_down_tmo.
2341          */
2342
2343         .get_fc_host_stats = lpfc_get_stats,
2344         .reset_fc_host_stats = lpfc_reset_stats,
2345
2346         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2347         .show_rport_maxframe_size = 1,
2348         .show_rport_supported_classes = 1,
2349
2350         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2351         .show_rport_dev_loss_tmo = 1,
2352
2353         .get_starget_port_id  = lpfc_get_starget_port_id,
2354         .show_starget_port_id = 1,
2355
2356         .get_starget_node_name = lpfc_get_starget_node_name,
2357         .show_starget_node_name = 1,
2358
2359         .get_starget_port_name = lpfc_get_starget_port_name,
2360         .show_starget_port_name = 1,
2361
2362         .issue_fc_host_lip = lpfc_issue_lip,
2363         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2364         .terminate_rport_io = lpfc_terminate_rport_io,
2365
2366         /* Vport fields are filled in at runtime based on enable_npiv */
2367         .vport_create = NULL,
2368         .vport_delete = NULL,
2369         .vport_disable = NULL,
2370         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2371 };
2372
2373 void
2374 lpfc_get_cfgparam(struct lpfc_hba *phba)
2375 {
2376         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2377         lpfc_cr_count_init(phba, lpfc_cr_count);
2378         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2379         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2380         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2381         lpfc_ack0_init(phba, lpfc_ack0);
2382         lpfc_topology_init(phba, lpfc_topology);
2383         lpfc_link_speed_init(phba, lpfc_link_speed);
2384         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2385         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2386         lpfc_use_msi_init(phba, lpfc_use_msi);
2387         phba->cfg_poll = lpfc_poll;
2388         phba->cfg_soft_wwnn = 0L;
2389         phba->cfg_soft_wwpn = 0L;
2390         /*
2391          * The total number of segments is the configuration value plus 2
2392          * since the IOCB need a command and response bde.
2393          */
2394         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2395         /*
2396          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2397          * used to create the sg_dma_buf_pool must be dynamically calculated
2398          */
2399         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2400                         sizeof(struct fcp_rsp) +
2401                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2402         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2403         return;
2404 }
2405
2406 void
2407 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2408 {
2409         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2410         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2411         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2412         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2413         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2414         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2415         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2416         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2417         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2418         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2419         lpfc_max_luns_init(vport, lpfc_max_luns);
2420         lpfc_scan_down_init(vport, lpfc_scan_down);
2421         lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
2422         return;
2423 }