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   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2008 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 #define LPFC_MAX_LINK_SPEED 8
  49 #define LPFC_LINK_SPEED_BITMAP 0x00000117
  50 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8"
  51
  52 static void
  53 lpfc_jedec_to_ascii(int incr, char hdw[])
  54 {
  55         int i, j;
  56         for (i = 0; i < 8; i++) {
  57                 j = (incr & 0xf);
  58                 if (j <= 9)
  59                         hdw[7 - i] = 0x30 +  j;
  60                  else
  61                         hdw[7 - i] = 0x61 + j - 10;
  62                 incr = (incr >> 4);
  63         }
  64         hdw[8] = 0;
  65         return;
  66 }
  67
  68 static ssize_t
  69 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
  70                        char *buf)
  71 {
  72         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  73 }
  74
  75 static ssize_t
  76 lpfc_info_show(struct device *dev, struct device_attribute *attr,
  77                char *buf)
  78 {
  79         struct Scsi_Host *host = class_to_shost(dev);
  80
  81         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  82 }
  83
  84 static ssize_t
  85 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
  86                     char *buf)
  87 {
  88         struct Scsi_Host  *shost = class_to_shost(dev);
  89         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  90         struct lpfc_hba   *phba = vport->phba;
  91
  92         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  93 }
  94
  95 static ssize_t
  96 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
  97                       char *buf)
  98 {
  99         struct Scsi_Host *shost = class_to_shost(dev);
 100         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 101         struct lpfc_hba   *phba = vport->phba;
 102         return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
 103 }
 104
 105 static ssize_t
 106 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
 107                     char *buf)
 108 {
 109         struct Scsi_Host  *shost = class_to_shost(dev);
 110         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 111         struct lpfc_hba   *phba = vport->phba;
 112
 113         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
 114 }
 115
 116 static ssize_t
 117 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
 118                     char *buf)
 119 {
 120         struct Scsi_Host  *shost = class_to_shost(dev);
 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->ModelName);
 125 }
 126
 127 static ssize_t
 128 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
 129                       char *buf)
 130 {
 131         struct Scsi_Host  *shost = class_to_shost(dev);
 132         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 133         struct lpfc_hba   *phba = vport->phba;
 134
 135         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 136 }
 137
 138 static ssize_t
 139 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
 140                    char *buf)
 141 {
 142         struct Scsi_Host  *shost = class_to_shost(dev);
 143         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 144         struct lpfc_hba   *phba = vport->phba;
 145
 146         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 147 }
 148
 149 static ssize_t
 150 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
 151                 char *buf)
 152 {
 153         struct Scsi_Host  *shost = class_to_shost(dev);
 154         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 155         struct lpfc_hba   *phba = vport->phba;
 156         char fwrev[32];
 157
 158         lpfc_decode_firmware_rev(phba, fwrev, 1);
 159         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 160 }
 161
 162 static ssize_t
 163 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
 164 {
 165         char hdw[9];
 166         struct Scsi_Host  *shost = class_to_shost(dev);
 167         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 168         struct lpfc_hba   *phba = vport->phba;
 169         lpfc_vpd_t *vp = &phba->vpd;
 170
 171         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 172         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 173 }
 174 static ssize_t
 175 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
 176                              char *buf)
 177 {
 178         struct Scsi_Host  *shost = class_to_shost(dev);
 179         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 180         struct lpfc_hba   *phba = vport->phba;
 181
 182         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 183 }
 184 static ssize_t
 185 lpfc_state_show(struct device *dev, struct device_attribute *attr,
 186                 char *buf)
 187 {
 188         struct Scsi_Host  *shost = class_to_shost(dev);
 189         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 190         struct lpfc_hba   *phba = vport->phba;
 191         int  len = 0;
 192
 193         switch (phba->link_state) {
 194         case LPFC_LINK_UNKNOWN:
 195         case LPFC_WARM_START:
 196         case LPFC_INIT_START:
 197         case LPFC_INIT_MBX_CMDS:
 198         case LPFC_LINK_DOWN:
 199         case LPFC_HBA_ERROR:
 200                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 201                 break;
 202         case LPFC_LINK_UP:
 203         case LPFC_CLEAR_LA:
 204         case LPFC_HBA_READY:
 205                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
 206
 207                 switch (vport->port_state) {
 208                 case LPFC_LOCAL_CFG_LINK:
 209                         len += snprintf(buf + len, PAGE_SIZE-len,
 210                                         "Configuring Link\n");
 211                         break;
 212                 case LPFC_FDISC:
 213                 case LPFC_FLOGI:
 214                 case LPFC_FABRIC_CFG_LINK:
 215                 case LPFC_NS_REG:
 216                 case LPFC_NS_QRY:
 217                 case LPFC_BUILD_DISC_LIST:
 218                 case LPFC_DISC_AUTH:
 219                         len += snprintf(buf + len, PAGE_SIZE - len,
 220                                         "Discovery\n");
 221                         break;
 222                 case LPFC_VPORT_READY:
 223                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
 224                         break;
 225
 226                 case LPFC_VPORT_FAILED:
 227                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
 228                         break;
 229
 230                 case LPFC_VPORT_UNKNOWN:
 231                         len += snprintf(buf + len, PAGE_SIZE - len,
 232                                         "Unknown\n");
 233                         break;
 234                 }
 235
 236                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 237                         if (vport->fc_flag & FC_PUBLIC_LOOP)
 238                                 len += snprintf(buf + len, PAGE_SIZE-len,
 239                                                 "   Public Loop\n");
 240                         else
 241                                 len += snprintf(buf + len, PAGE_SIZE-len,
 242                                                 "   Private Loop\n");
 243                 } else {
 244                         if (vport->fc_flag & FC_FABRIC)
 245                                 len += snprintf(buf + len, PAGE_SIZE-len,
 246                                                 "   Fabric\n");
 247                         else
 248                                 len += snprintf(buf + len, PAGE_SIZE-len,
 249                                                 "   Point-2-Point\n");
 250                 }
 251         }
 252
 253         return len;
 254 }
 255
 256 static ssize_t
 257 lpfc_num_discovered_ports_show(struct device *dev,
 258                                struct device_attribute *attr, char *buf)
 259 {
 260         struct Scsi_Host  *shost = class_to_shost(dev);
 261         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 262
 263         return snprintf(buf, PAGE_SIZE, "%d\n",
 264                         vport->fc_map_cnt + vport->fc_unmap_cnt);
 265 }
 266
 267
 268 static int
 269 lpfc_issue_lip(struct Scsi_Host *shost)
 270 {
 271         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 272         struct lpfc_hba   *phba = vport->phba;
 273         LPFC_MBOXQ_t *pmboxq;
 274         int mbxstatus = MBXERR_ERROR;
 275
 276         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
 277             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
 278                 return -EPERM;
 279
 280         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 281
 282         if (!pmboxq)
 283                 return -ENOMEM;
 284
 285         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 286         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 287         pmboxq->mb.mbxOwner = OWN_HOST;
 288
 289         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 290
 291         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 292                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 293                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
 294                                phba->cfg_link_speed);
 295                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
 296                                                      phba->fc_ratov * 2);
 297         }
 298
 299         lpfc_set_loopback_flag(phba);
 300         if (mbxstatus != MBX_TIMEOUT)
 301                 mempool_free(pmboxq, phba->mbox_mem_pool);
 302
 303         if (mbxstatus == MBXERR_ERROR)
 304                 return -EIO;
 305
 306         return 0;
 307 }
 308
 309 static int
 310 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 311 {
 312         struct completion online_compl;
 313         struct lpfc_sli_ring *pring;
 314         struct lpfc_sli *psli;
 315         int status = 0;
 316         int cnt = 0;
 317         int i;
 318
 319         init_completion(&online_compl);
 320         lpfc_workq_post_event(phba, &status, &online_compl,
 321                               LPFC_EVT_OFFLINE_PREP);
 322         wait_for_completion(&online_compl);
 323
 324         if (status != 0)
 325                 return -EIO;
 326
 327         psli = &phba->sli;
 328
 329         /* Wait a little for things to settle down, but not
 330          * long enough for dev loss timeout to expire.
 331          */
 332         for (i = 0; i < psli->num_rings; i++) {
 333                 pring = &psli->ring[i];
 334                 while (pring->txcmplq_cnt) {
 335                         msleep(10);
 336                         if (cnt++ > 500) {  /* 5 secs */
 337                                 lpfc_printf_log(phba,
 338                                         KERN_WARNING, LOG_INIT,
 339                                         "0466 Outstanding IO when "
 340                                         "bringing Adapter offline\n");
 341                                 break;
 342                         }
 343                 }
 344         }
 345
 346         init_completion(&online_compl);
 347         lpfc_workq_post_event(phba, &status, &online_compl, type);
 348         wait_for_completion(&online_compl);
 349
 350         if (status != 0)
 351                 return -EIO;
 352
 353         return 0;
 354 }
 355
 356 static int
 357 lpfc_selective_reset(struct lpfc_hba *phba)
 358 {
 359         struct completion online_compl;
 360         int status = 0;
 361
 362         if (!phba->cfg_enable_hba_reset)
 363                 return -EIO;
 364
 365         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 366
 367         if (status != 0)
 368                 return status;
 369
 370         init_completion(&online_compl);
 371         lpfc_workq_post_event(phba, &status, &online_compl,
 372                               LPFC_EVT_ONLINE);
 373         wait_for_completion(&online_compl);
 374
 375         if (status != 0)
 376                 return -EIO;
 377
 378         return 0;
 379 }
 380
 381 static ssize_t
 382 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
 383                  const char *buf, size_t count)
 384 {
 385         struct Scsi_Host  *shost = class_to_shost(dev);
 386         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 387         struct lpfc_hba   *phba = vport->phba;
 388
 389         int status = -EINVAL;
 390
 391         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
 392                 status = lpfc_selective_reset(phba);
 393
 394         if (status == 0)
 395                 return strlen(buf);
 396         else
 397                 return status;
 398 }
 399
 400 static ssize_t
 401 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
 402                         char *buf)
 403 {
 404         struct Scsi_Host  *shost = class_to_shost(dev);
 405         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 406         struct lpfc_hba   *phba = vport->phba;
 407
 408         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 409 }
 410
 411 static ssize_t
 412 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
 413                      char *buf)
 414 {
 415         struct Scsi_Host  *shost = class_to_shost(dev);
 416         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 417         struct lpfc_hba   *phba = vport->phba;
 418         char  * state;
 419
 420         if (phba->link_state == LPFC_HBA_ERROR)
 421                 state = "error";
 422         else if (phba->link_state == LPFC_WARM_START)
 423                 state = "warm start";
 424         else if (phba->link_state == LPFC_INIT_START)
 425                 state = "offline";
 426         else
 427                 state = "online";
 428
 429         return snprintf(buf, PAGE_SIZE, "%s\n", state);
 430 }
 431
 432 static ssize_t
 433 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
 434                       const char *buf, size_t count)
 435 {
 436         struct Scsi_Host  *shost = class_to_shost(dev);
 437         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 438         struct lpfc_hba   *phba = vport->phba;
 439         struct completion online_compl;
 440         int status=0;
 441
 442         if (!phba->cfg_enable_hba_reset)
 443                 return -EACCES;
 444         init_completion(&online_compl);
 445
 446         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 447                 lpfc_workq_post_event(phba, &status, &online_compl,
 448                                       LPFC_EVT_ONLINE);
 449                 wait_for_completion(&online_compl);
 450         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 451                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 452         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 453                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 454         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 455                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 456         else
 457                 return -EINVAL;
 458
 459         if (!status)
 460                 return strlen(buf);
 461         else
 462                 return -EIO;
 463 }
 464
 465 static int
 466 lpfc_get_hba_info(struct lpfc_hba *phba,
 467                   uint32_t *mxri, uint32_t *axri,
 468                   uint32_t *mrpi, uint32_t *arpi,
 469                   uint32_t *mvpi, uint32_t *avpi)
 470 {
 471         struct lpfc_sli   *psli = &phba->sli;
 472         LPFC_MBOXQ_t *pmboxq;
 473         MAILBOX_t *pmb;
 474         int rc = 0;
 475
 476         /*
 477          * prevent udev from issuing mailbox commands until the port is
 478          * configured.
 479          */
 480         if (phba->link_state < LPFC_LINK_DOWN ||
 481             !phba->mbox_mem_pool ||
 482             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
 483                 return 0;
 484
 485         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
 486                 return 0;
 487
 488         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 489         if (!pmboxq)
 490                 return 0;
 491         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 492
 493         pmb = &pmboxq->mb;
 494         pmb->mbxCommand = MBX_READ_CONFIG;
 495         pmb->mbxOwner = OWN_HOST;
 496         pmboxq->context1 = NULL;
 497
 498         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
 499                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
 500                 rc = MBX_NOT_FINISHED;
 501         else
 502                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 503
 504         if (rc != MBX_SUCCESS) {
 505                 if (rc != MBX_TIMEOUT)
 506                         mempool_free(pmboxq, phba->mbox_mem_pool);
 507                 return 0;
 508         }
 509
 510         if (mrpi)
 511                 *mrpi = pmb->un.varRdConfig.max_rpi;
 512         if (arpi)
 513                 *arpi = pmb->un.varRdConfig.avail_rpi;
 514         if (mxri)
 515                 *mxri = pmb->un.varRdConfig.max_xri;
 516         if (axri)
 517                 *axri = pmb->un.varRdConfig.avail_xri;
 518         if (mvpi)
 519                 *mvpi = pmb->un.varRdConfig.max_vpi;
 520         if (avpi)
 521                 *avpi = pmb->un.varRdConfig.avail_vpi;
 522
 523         mempool_free(pmboxq, phba->mbox_mem_pool);
 524         return 1;
 525 }
 526
 527 static ssize_t
 528 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
 529                   char *buf)
 530 {
 531         struct Scsi_Host  *shost = class_to_shost(dev);
 532         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 533         struct lpfc_hba   *phba = vport->phba;
 534         uint32_t cnt;
 535
 536         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
 537                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 538         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 539 }
 540
 541 static ssize_t
 542 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
 543                    char *buf)
 544 {
 545         struct Scsi_Host  *shost = class_to_shost(dev);
 546         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 547         struct lpfc_hba   *phba = vport->phba;
 548         uint32_t cnt, acnt;
 549
 550         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
 551                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 552         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 553 }
 554
 555 static ssize_t
 556 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
 557                   char *buf)
 558 {
 559         struct Scsi_Host  *shost = class_to_shost(dev);
 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, &cnt, NULL, NULL, NULL, NULL, 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_xri_show(struct device *dev, struct device_attribute *attr,
 571                    char *buf)
 572 {
 573         struct Scsi_Host  *shost = class_to_shost(dev);
 574         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 575         struct lpfc_hba   *phba = vport->phba;
 576         uint32_t cnt, acnt;
 577
 578         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
 579                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 580         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 581 }
 582
 583 static ssize_t
 584 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
 585                   char *buf)
 586 {
 587         struct Scsi_Host  *shost = class_to_shost(dev);
 588         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 589         struct lpfc_hba   *phba = vport->phba;
 590         uint32_t cnt;
 591
 592         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
 593                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
 594         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 595 }
 596
 597 static ssize_t
 598 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
 599                    char *buf)
 600 {
 601         struct Scsi_Host  *shost = class_to_shost(dev);
 602         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 603         struct lpfc_hba   *phba = vport->phba;
 604         uint32_t cnt, acnt;
 605
 606         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
 607                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
 608         return snprintf(buf, PAGE_SIZE, "Unknown\n");
 609 }
 610
 611 static ssize_t
 612 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
 613                     char *buf)
 614 {
 615         struct Scsi_Host  *shost = class_to_shost(dev);
 616         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 617         struct lpfc_hba   *phba = vport->phba;
 618
 619         if (!(phba->max_vpi))
 620                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 621         if (vport->port_type == LPFC_PHYSICAL_PORT)
 622                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
 623         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 624 }
 625
 626 static ssize_t
 627 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
 628                char *buf)
 629 {
 630         struct Scsi_Host  *shost = class_to_shost(dev);
 631         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 632         struct lpfc_hba   *phba = vport->phba;
 633
 634         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 635 }
 636
 637 static ssize_t
 638 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
 639                 const char *buf, size_t count)
 640 {
 641         struct Scsi_Host  *shost = class_to_shost(dev);
 642         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 643         struct lpfc_hba   *phba = vport->phba;
 644         uint32_t creg_val;
 645         uint32_t old_val;
 646         int val=0;
 647
 648         if (!isdigit(buf[0]))
 649                 return -EINVAL;
 650
 651         if (sscanf(buf, "%i", &val) != 1)
 652                 return -EINVAL;
 653
 654         if ((val & 0x3) != val)
 655                 return -EINVAL;
 656
 657         spin_lock_irq(&phba->hbalock);
 658
 659         old_val = phba->cfg_poll;
 660
 661         if (val & ENABLE_FCP_RING_POLLING) {
 662                 if ((val & DISABLE_FCP_RING_INT) &&
 663                     !(old_val & DISABLE_FCP_RING_INT)) {
 664                         creg_val = readl(phba->HCregaddr);
 665                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 666                         writel(creg_val, phba->HCregaddr);
 667                         readl(phba->HCregaddr); /* flush */
 668
 669                         lpfc_poll_start_timer(phba);
 670                 }
 671         } else if (val != 0x0) {
 672                 spin_unlock_irq(&phba->hbalock);
 673                 return -EINVAL;
 674         }
 675
 676         if (!(val & DISABLE_FCP_RING_INT) &&
 677             (old_val & DISABLE_FCP_RING_INT))
 678         {
 679                 spin_unlock_irq(&phba->hbalock);
 680                 del_timer(&phba->fcp_poll_timer);
 681                 spin_lock_irq(&phba->hbalock);
 682                 creg_val = readl(phba->HCregaddr);
 683                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
 684                 writel(creg_val, phba->HCregaddr);
 685                 readl(phba->HCregaddr); /* flush */
 686         }
 687
 688         phba->cfg_poll = val;
 689
 690         spin_unlock_irq(&phba->hbalock);
 691
 692         return strlen(buf);
 693 }
 694
 695 #define lpfc_param_show(attr)   \
 696 static ssize_t \
 697 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
 698                    char *buf) \
 699 { \
 700         struct Scsi_Host  *shost = class_to_shost(dev);\
 701         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 702         struct lpfc_hba   *phba = vport->phba;\
 703         int val = 0;\
 704         val = phba->cfg_##attr;\
 705         return snprintf(buf, PAGE_SIZE, "%d\n",\
 706                         phba->cfg_##attr);\
 707 }
 708
 709 #define lpfc_param_hex_show(attr)       \
 710 static ssize_t \
 711 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
 712                    char *buf) \
 713 { \
 714         struct Scsi_Host  *shost = class_to_shost(dev);\
 715         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 716         struct lpfc_hba   *phba = vport->phba;\
 717         int val = 0;\
 718         val = phba->cfg_##attr;\
 719         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 720                         phba->cfg_##attr);\
 721 }
 722
 723 #define lpfc_param_init(attr, default, minval, maxval)  \
 724 static int \
 725 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 726 { \
 727         if (val >= minval && val <= maxval) {\
 728                 phba->cfg_##attr = val;\
 729                 return 0;\
 730         }\
 731         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 732                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 733                         "allowed range is ["#minval", "#maxval"]\n", val); \
 734         phba->cfg_##attr = default;\
 735         return -EINVAL;\
 736 }
 737
 738 #define lpfc_param_set(attr, default, minval, maxval)   \
 739 static int \
 740 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 741 { \
 742         if (val >= minval && val <= maxval) {\
 743                 phba->cfg_##attr = val;\
 744                 return 0;\
 745         }\
 746         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 747                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 748                         "allowed range is ["#minval", "#maxval"]\n", val); \
 749         return -EINVAL;\
 750 }
 751
 752 #define lpfc_param_store(attr)  \
 753 static ssize_t \
 754 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
 755                     const char *buf, size_t count) \
 756 { \
 757         struct Scsi_Host  *shost = class_to_shost(dev);\
 758         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 759         struct lpfc_hba   *phba = vport->phba;\
 760         int val=0;\
 761         if (!isdigit(buf[0]))\
 762                 return -EINVAL;\
 763         if (sscanf(buf, "%i", &val) != 1)\
 764                 return -EINVAL;\
 765         if (lpfc_##attr##_set(phba, val) == 0) \
 766                 return strlen(buf);\
 767         else \
 768                 return -EINVAL;\
 769 }
 770
 771 #define lpfc_vport_param_show(attr)     \
 772 static ssize_t \
 773 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
 774                    char *buf) \
 775 { \
 776         struct Scsi_Host  *shost = class_to_shost(dev);\
 777         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 778         int val = 0;\
 779         val = vport->cfg_##attr;\
 780         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 781 }
 782
 783 #define lpfc_vport_param_hex_show(attr) \
 784 static ssize_t \
 785 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
 786                    char *buf) \
 787 { \
 788         struct Scsi_Host  *shost = class_to_shost(dev);\
 789         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 790         int val = 0;\
 791         val = vport->cfg_##attr;\
 792         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 793 }
 794
 795 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
 796 static int \
 797 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
 798 { \
 799         if (val >= minval && val <= maxval) {\
 800                 vport->cfg_##attr = val;\
 801                 return 0;\
 802         }\
 803         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 804                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
 805                          "allowed range is ["#minval", "#maxval"]\n", val); \
 806         vport->cfg_##attr = default;\
 807         return -EINVAL;\
 808 }
 809
 810 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
 811 static int \
 812 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
 813 { \
 814         if (val >= minval && val <= maxval) {\
 815                 vport->cfg_##attr = val;\
 816                 return 0;\
 817         }\
 818         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
 819                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
 820                          "allowed range is ["#minval", "#maxval"]\n", val); \
 821         return -EINVAL;\
 822 }
 823
 824 #define lpfc_vport_param_store(attr)    \
 825 static ssize_t \
 826 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
 827                     const char *buf, size_t count) \
 828 { \
 829         struct Scsi_Host  *shost = class_to_shost(dev);\
 830         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 831         int val=0;\
 832         if (!isdigit(buf[0]))\
 833                 return -EINVAL;\
 834         if (sscanf(buf, "%i", &val) != 1)\
 835                 return -EINVAL;\
 836         if (lpfc_##attr##_set(vport, val) == 0) \
 837                 return strlen(buf);\
 838         else \
 839                 return -EINVAL;\
 840 }
 841
 842
 843 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 844 static int lpfc_##name = defval;\
 845 module_param(lpfc_##name, int, 0);\
 846 MODULE_PARM_DESC(lpfc_##name, desc);\
 847 lpfc_param_init(name, defval, minval, maxval)
 848
 849 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 850 static int lpfc_##name = defval;\
 851 module_param(lpfc_##name, int, 0);\
 852 MODULE_PARM_DESC(lpfc_##name, desc);\
 853 lpfc_param_show(name)\
 854 lpfc_param_init(name, defval, minval, maxval)\
 855 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 856
 857 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 858 static int lpfc_##name = defval;\
 859 module_param(lpfc_##name, int, 0);\
 860 MODULE_PARM_DESC(lpfc_##name, desc);\
 861 lpfc_param_show(name)\
 862 lpfc_param_init(name, defval, minval, maxval)\
 863 lpfc_param_set(name, defval, minval, maxval)\
 864 lpfc_param_store(name)\
 865 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 866                    lpfc_##name##_show, lpfc_##name##_store)
 867
 868 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 869 static int lpfc_##name = defval;\
 870 module_param(lpfc_##name, int, 0);\
 871 MODULE_PARM_DESC(lpfc_##name, desc);\
 872 lpfc_param_hex_show(name)\
 873 lpfc_param_init(name, defval, minval, maxval)\
 874 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 875
 876 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 877 static int lpfc_##name = defval;\
 878 module_param(lpfc_##name, int, 0);\
 879 MODULE_PARM_DESC(lpfc_##name, desc);\
 880 lpfc_param_hex_show(name)\
 881 lpfc_param_init(name, defval, minval, maxval)\
 882 lpfc_param_set(name, defval, minval, maxval)\
 883 lpfc_param_store(name)\
 884 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 885                    lpfc_##name##_show, lpfc_##name##_store)
 886
 887 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 888 static int lpfc_##name = defval;\
 889 module_param(lpfc_##name, int, 0);\
 890 MODULE_PARM_DESC(lpfc_##name, desc);\
 891 lpfc_vport_param_init(name, defval, minval, maxval)
 892
 893 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 894 static int lpfc_##name = defval;\
 895 module_param(lpfc_##name, int, 0);\
 896 MODULE_PARM_DESC(lpfc_##name, desc);\
 897 lpfc_vport_param_show(name)\
 898 lpfc_vport_param_init(name, defval, minval, maxval)\
 899 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 900
 901 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 902 static int lpfc_##name = defval;\
 903 module_param(lpfc_##name, int, 0);\
 904 MODULE_PARM_DESC(lpfc_##name, desc);\
 905 lpfc_vport_param_show(name)\
 906 lpfc_vport_param_init(name, defval, minval, maxval)\
 907 lpfc_vport_param_set(name, defval, minval, maxval)\
 908 lpfc_vport_param_store(name)\
 909 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 910                    lpfc_##name##_show, lpfc_##name##_store)
 911
 912 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 913 static int lpfc_##name = defval;\
 914 module_param(lpfc_##name, int, 0);\
 915 MODULE_PARM_DESC(lpfc_##name, desc);\
 916 lpfc_vport_param_hex_show(name)\
 917 lpfc_vport_param_init(name, defval, minval, maxval)\
 918 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 919
 920 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 921 static int lpfc_##name = defval;\
 922 module_param(lpfc_##name, int, 0);\
 923 MODULE_PARM_DESC(lpfc_##name, desc);\
 924 lpfc_vport_param_hex_show(name)\
 925 lpfc_vport_param_init(name, defval, minval, maxval)\
 926 lpfc_vport_param_set(name, defval, minval, maxval)\
 927 lpfc_vport_param_store(name)\
 928 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 929                    lpfc_##name##_show, lpfc_##name##_store)
 930
 931 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 932 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 933 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 934 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 935 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 936 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
 937 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 938 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 939 static DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 940 static DEVICE_ATTR(option_rom_version, S_IRUGO,
 941                    lpfc_option_rom_version_show, NULL);
 942 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 943                    lpfc_num_discovered_ports_show, NULL);
 944 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 945 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
 946 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 947                    lpfc_board_mode_show, lpfc_board_mode_store);
 948 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 949 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
 950 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
 951 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
 952 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 953 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 954 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 955 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 956 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
 957
 958
 959 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 960
 961 static ssize_t
 962 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
 963                            const char *buf, size_t count)
 964 {
 965         struct Scsi_Host  *shost = class_to_shost(dev);
 966         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 967         struct lpfc_hba   *phba = vport->phba;
 968         unsigned int cnt = count;
 969
 970         /*
 971          * We're doing a simple sanity check for soft_wwpn setting.
 972          * We require that the user write a specific key to enable
 973          * the soft_wwpn attribute to be settable. Once the attribute
 974          * is written, the enable key resets. If further updates are
 975          * desired, the key must be written again to re-enable the
 976          * attribute.
 977          *
 978          * The "key" is not secret - it is a hardcoded string shown
 979          * here. The intent is to protect against the random user or
 980          * application that is just writing attributes.
 981          */
 982
 983         /* count may include a LF at end of string */
 984         if (buf[cnt-1] == '\n')
 985                 cnt--;
 986
 987         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
 988             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 989                 return -EINVAL;
 990
 991         phba->soft_wwn_enable = 1;
 992         return count;
 993 }
 994 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
 995                    lpfc_soft_wwn_enable_store);
 996
 997 static ssize_t
 998 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
 999                     char *buf)
1000 {
1001         struct Scsi_Host  *shost = class_to_shost(dev);
1002         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1003         struct lpfc_hba   *phba = vport->phba;
1004
1005         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1006                         (unsigned long long)phba->cfg_soft_wwpn);
1007 }
1008
1009
1010 static ssize_t
1011 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1012                      const char *buf, size_t count)
1013 {
1014         struct Scsi_Host  *shost = class_to_shost(dev);
1015         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1016         struct lpfc_hba   *phba = vport->phba;
1017         struct completion online_compl;
1018         int stat1=0, stat2=0;
1019         unsigned int i, j, cnt=count;
1020         u8 wwpn[8];
1021
1022         if (!phba->cfg_enable_hba_reset)
1023                 return -EACCES;
1024         spin_lock_irq(&phba->hbalock);
1025         if (phba->over_temp_state == HBA_OVER_TEMP) {
1026                 spin_unlock_irq(&phba->hbalock);
1027                 return -EACCES;
1028         }
1029         spin_unlock_irq(&phba->hbalock);
1030         /* count may include a LF at end of string */
1031         if (buf[cnt-1] == '\n')
1032                 cnt--;
1033
1034         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1035             ((cnt == 17) && (*buf++ != 'x')) ||
1036             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1037                 return -EINVAL;
1038
1039         phba->soft_wwn_enable = 0;
1040
1041         memset(wwpn, 0, sizeof(wwpn));
1042
1043         /* Validate and store the new name */
1044         for (i=0, j=0; i < 16; i++) {
1045                 if ((*buf >= 'a') && (*buf <= 'f'))
1046                         j = ((j << 4) | ((*buf++ -'a') + 10));
1047                 else if ((*buf >= 'A') && (*buf <= 'F'))
1048                         j = ((j << 4) | ((*buf++ -'A') + 10));
1049                 else if ((*buf >= '0') && (*buf <= '9'))
1050                         j = ((j << 4) | (*buf++ -'0'));
1051                 else
1052                         return -EINVAL;
1053                 if (i % 2) {
1054                         wwpn[i/2] = j & 0xff;
1055                         j = 0;
1056                 }
1057         }
1058         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1059         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1060         if (phba->cfg_soft_wwnn)
1061                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1062
1063         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1064                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1065
1066         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1067         if (stat1)
1068                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1069                                 "0463 lpfc_soft_wwpn attribute set failed to "
1070                                 "reinit adapter - %d\n", stat1);
1071         init_completion(&online_compl);
1072         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1073         wait_for_completion(&online_compl);
1074         if (stat2)
1075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1076                                 "0464 lpfc_soft_wwpn attribute set failed to "
1077                                 "reinit adapter - %d\n", stat2);
1078         return (stat1 || stat2) ? -EIO : count;
1079 }
1080 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1081                    lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1082
1083 static ssize_t
1084 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1085                     char *buf)
1086 {
1087         struct Scsi_Host *shost = class_to_shost(dev);
1088         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1089         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1090                         (unsigned long long)phba->cfg_soft_wwnn);
1091 }
1092
1093
1094 static ssize_t
1095 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1096                      const char *buf, size_t count)
1097 {
1098         struct Scsi_Host *shost = class_to_shost(dev);
1099         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1100         unsigned int i, j, cnt=count;
1101         u8 wwnn[8];
1102
1103         /* count may include a LF at end of string */
1104         if (buf[cnt-1] == '\n')
1105                 cnt--;
1106
1107         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1108             ((cnt == 17) && (*buf++ != 'x')) ||
1109             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1110                 return -EINVAL;
1111
1112         /*
1113          * Allow wwnn to be set many times, as long as the enable is set.
1114          * However, once the wwpn is set, everything locks.
1115          */
1116
1117         memset(wwnn, 0, sizeof(wwnn));
1118
1119         /* Validate and store the new name */
1120         for (i=0, j=0; i < 16; i++) {
1121                 if ((*buf >= 'a') && (*buf <= 'f'))
1122                         j = ((j << 4) | ((*buf++ -'a') + 10));
1123                 else if ((*buf >= 'A') && (*buf <= 'F'))
1124                         j = ((j << 4) | ((*buf++ -'A') + 10));
1125                 else if ((*buf >= '0') && (*buf <= '9'))
1126                         j = ((j << 4) | (*buf++ -'0'));
1127                 else
1128                         return -EINVAL;
1129                 if (i % 2) {
1130                         wwnn[i/2] = j & 0xff;
1131                         j = 0;
1132                 }
1133         }
1134         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1135
1136         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1137                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1138                    "setting of the soft_wwpn\n", phba->brd_no);
1139
1140         return count;
1141 }
1142 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1143                    lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1144
1145
1146 static int lpfc_poll = 0;
1147 module_param(lpfc_poll, int, 0);
1148 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1149                  " 0 - none,"
1150                  " 1 - poll with interrupts enabled"
1151                  " 3 - poll and disable FCP ring interrupts");
1152
1153 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1154                    lpfc_poll_show, lpfc_poll_store);
1155
1156 int  lpfc_sli_mode = 0;
1157 module_param(lpfc_sli_mode, int, 0);
1158 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1159                  " 0 - auto (SLI-3 if supported),"
1160                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1161                  " 3 - select SLI-3");
1162
1163 int lpfc_enable_npiv = 0;
1164 module_param(lpfc_enable_npiv, int, 0);
1165 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1166 lpfc_param_show(enable_npiv);
1167 lpfc_param_init(enable_npiv, 0, 0, 1);
1168 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO,
1169                          lpfc_enable_npiv_show, NULL);
1170
1171 /*
1172 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1173 # until the timer expires. Value range is [0,255]. Default value is 30.
1174 */
1175 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1176 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1177 module_param(lpfc_nodev_tmo, int, 0);
1178 MODULE_PARM_DESC(lpfc_nodev_tmo,
1179                  "Seconds driver will hold I/O waiting "
1180                  "for a device to come back");
1181 static ssize_t
1182 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
1183                     char *buf)
1184 {
1185         struct Scsi_Host  *shost = class_to_shost(dev);
1186         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1187         int val = 0;
1188         val = vport->cfg_devloss_tmo;
1189         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1190 }
1191
1192 static int
1193 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1194 {
1195         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1196                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1197                 if (val != LPFC_DEF_DEVLOSS_TMO)
1198                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1199                                          "0402 Ignoring nodev_tmo module "
1200                                          "parameter because devloss_tmo is "
1201                                          "set.\n");
1202                 return 0;
1203         }
1204
1205         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1206                 vport->cfg_nodev_tmo = val;
1207                 vport->cfg_devloss_tmo = val;
1208                 return 0;
1209         }
1210         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1211                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1212                          " %d, allowed range is [%d, %d]\n",
1213                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1214         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1215         return -EINVAL;
1216 }
1217
1218 static void
1219 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1220 {
1221         struct Scsi_Host  *shost;
1222         struct lpfc_nodelist  *ndlp;
1223
1224         shost = lpfc_shost_from_vport(vport);
1225         spin_lock_irq(shost->host_lock);
1226         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
1227                 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
1228                         ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
1229         spin_unlock_irq(shost->host_lock);
1230 }
1231
1232 static int
1233 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1234 {
1235         if (vport->dev_loss_tmo_changed ||
1236             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1237                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1238                                  "0401 Ignoring change to nodev_tmo "
1239                                  "because devloss_tmo is set.\n");
1240                 return 0;
1241         }
1242         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1243                 vport->cfg_nodev_tmo = val;
1244                 vport->cfg_devloss_tmo = val;
1245                 lpfc_update_rport_devloss_tmo(vport);
1246                 return 0;
1247         }
1248         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1249                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1250                          "%d, allowed range is [%d, %d]\n",
1251                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1252         return -EINVAL;
1253 }
1254
1255 lpfc_vport_param_store(nodev_tmo)
1256
1257 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1258                    lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1259
1260 /*
1261 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1262 # disappear until the timer expires. Value range is [0,255]. Default
1263 # value is 30.
1264 */
1265 module_param(lpfc_devloss_tmo, int, 0);
1266 MODULE_PARM_DESC(lpfc_devloss_tmo,
1267                  "Seconds driver will hold I/O waiting "
1268                  "for a device to come back");
1269 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1270                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1271 lpfc_vport_param_show(devloss_tmo)
1272 static int
1273 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1274 {
1275         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1276                 vport->cfg_nodev_tmo = val;
1277                 vport->cfg_devloss_tmo = val;
1278                 vport->dev_loss_tmo_changed = 1;
1279                 lpfc_update_rport_devloss_tmo(vport);
1280                 return 0;
1281         }
1282
1283         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1284                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1285                          " %d, allowed range is [%d, %d]\n",
1286                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1287         return -EINVAL;
1288 }
1289
1290 lpfc_vport_param_store(devloss_tmo)
1291 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1292                    lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1293
1294 /*
1295 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1296 # deluged with LOTS of information.
1297 # You can set a bit mask to record specific types of verbose messages:
1298 #
1299 # LOG_ELS                       0x1        ELS events
1300 # LOG_DISCOVERY                 0x2        Link discovery events
1301 # LOG_MBOX                      0x4        Mailbox events
1302 # LOG_INIT                      0x8        Initialization events
1303 # LOG_LINK_EVENT                0x10       Link events
1304 # LOG_FCP                       0x40       FCP traffic history
1305 # LOG_NODE                      0x80       Node table events
1306 # LOG_MISC                      0x400      Miscellaneous events
1307 # LOG_SLI                       0x800      SLI events
1308 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1309 # LOG_LIBDFC                    0x2000     LIBDFC events
1310 # LOG_ALL_MSG                   0xffff     LOG all messages
1311 */
1312 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1313                        "Verbose logging bit-mask");
1314
1315 /*
1316 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
1317 # objects that have been registered with the nameserver after login.
1318 */
1319 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
1320                   "Deregister nameserver objects before LOGO");
1321
1322 /*
1323 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1324 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1325 */
1326 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1327                   "Max number of FCP commands we can queue to a specific LUN");
1328
1329 /*
1330 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1331 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1332 # value is greater than the maximum number of exchanges supported by the HBA,
1333 # then maximum number of exchanges supported by the HBA is used to determine
1334 # the hba_queue_depth.
1335 */
1336 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1337             "Max number of FCP commands we can queue to a lpfc HBA");
1338
1339 /*
1340 # peer_port_login:  This parameter allows/prevents logins
1341 # between peer ports hosted on the same physical port.
1342 # When this parameter is set 0 peer ports of same physical port
1343 # are not allowed to login to each other.
1344 # When this parameter is set 1 peer ports of same physical port
1345 # are allowed to login to each other.
1346 # Default value of this parameter is 0.
1347 */
1348 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1349                   "Allow peer ports on the same physical port to login to each "
1350                   "other.");
1351
1352 /*
1353 # restrict_login:  This parameter allows/prevents logins
1354 # between Virtual Ports and remote initiators.
1355 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1356 # other initiators and will attempt to PLOGI all remote ports.
1357 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1358 # remote ports and will not attempt to PLOGI to other initiators.
1359 # This parameter does not restrict to the physical port.
1360 # This parameter does not restrict logins to Fabric resident remote ports.
1361 # Default value of this parameter is 1.
1362 */
1363 static int lpfc_restrict_login = 1;
1364 module_param(lpfc_restrict_login, int, 0);
1365 MODULE_PARM_DESC(lpfc_restrict_login,
1366                  "Restrict virtual ports login to remote initiators.");
1367 lpfc_vport_param_show(restrict_login);
1368
1369 static int
1370 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1371 {
1372         if (val < 0 || val > 1) {
1373                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1374                                  "0449 lpfc_restrict_login attribute cannot "
1375                                  "be set to %d, allowed range is [0, 1]\n",
1376                                  val);
1377                 vport->cfg_restrict_login = 1;
1378                 return -EINVAL;
1379         }
1380         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1381                 vport->cfg_restrict_login = 0;
1382                 return 0;
1383         }
1384         vport->cfg_restrict_login = val;
1385         return 0;
1386 }
1387
1388 static int
1389 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1390 {
1391         if (val < 0 || val > 1) {
1392                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1393                                  "0450 lpfc_restrict_login attribute cannot "
1394                                  "be set to %d, allowed range is [0, 1]\n",
1395                                  val);
1396                 vport->cfg_restrict_login = 1;
1397                 return -EINVAL;
1398         }
1399         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1400                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1401                                  "0468 lpfc_restrict_login must be 0 for "
1402                                  "Physical ports.\n");
1403                 vport->cfg_restrict_login = 0;
1404                 return 0;
1405         }
1406         vport->cfg_restrict_login = val;
1407         return 0;
1408 }
1409 lpfc_vport_param_store(restrict_login);
1410 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1411                    lpfc_restrict_login_show, lpfc_restrict_login_store);
1412
1413 /*
1414 # Some disk devices have a "select ID" or "select Target" capability.
1415 # From a protocol standpoint "select ID" usually means select the
1416 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1417 # annex" which contains a table that maps a "select ID" (a number
1418 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1419 # older drivers, the lpfc driver scans this table from low ALPA to high
1420 # ALPA.
1421 #
1422 # Turning on the scan-down variable (on  = 1, off = 0) will
1423 # cause the lpfc driver to use an inverted table, effectively
1424 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1425 #
1426 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1427 # and will not work across a fabric. Also this parameter will take
1428 # effect only in the case when ALPA map is not available.)
1429 */
1430 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1431                   "Start scanning for devices from highest ALPA to lowest");
1432
1433 /*
1434 # lpfc_topology:  link topology for init link
1435 #            0x0  = attempt loop mode then point-to-point
1436 #            0x01 = internal loopback mode
1437 #            0x02 = attempt point-to-point mode only
1438 #            0x04 = attempt loop mode only
1439 #            0x06 = attempt point-to-point mode then loop
1440 # Set point-to-point mode if you want to run as an N_Port.
1441 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1442 # Default value is 0.
1443 */
1444 static int
1445 lpfc_topology_set(struct lpfc_hba *phba, int val)
1446 {
1447         int err;
1448         uint32_t prev_val;
1449         if (val >= 0 && val <= 6) {
1450                 prev_val = phba->cfg_topology;
1451                 phba->cfg_topology = val;
1452                 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
1453                 if (err)
1454                         phba->cfg_topology = prev_val;
1455                 return err;
1456         }
1457         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1458                 "%d:0467 lpfc_topology attribute cannot be set to %d, "
1459                 "allowed range is [0, 6]\n",
1460                 phba->brd_no, val);
1461         return -EINVAL;
1462 }
1463 static int lpfc_topology = 0;
1464 module_param(lpfc_topology, int, 0);
1465 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
1466 lpfc_param_show(topology)
1467 lpfc_param_init(topology, 0, 0, 6)
1468 lpfc_param_store(topology)
1469 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
1470                 lpfc_topology_show, lpfc_topology_store);
1471
1472 /*
1473 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1474 # connection.
1475 #       0  = auto select (default)
1476 #       1  = 1 Gigabaud
1477 #       2  = 2 Gigabaud
1478 #       4  = 4 Gigabaud
1479 #       8  = 8 Gigabaud
1480 # Value range is [0,8]. Default value is 0.
1481 */
1482 static int
1483 lpfc_link_speed_set(struct lpfc_hba *phba, int val)
1484 {
1485         int err;
1486         uint32_t prev_val;
1487
1488         if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
1489                 ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
1490                 ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
1491                 ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
1492                 ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)))
1493                 return -EINVAL;
1494
1495         if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
1496                 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
1497                 prev_val = phba->cfg_link_speed;
1498                 phba->cfg_link_speed = val;
1499                 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
1500                 if (err)
1501                         phba->cfg_link_speed = prev_val;
1502                 return err;
1503         }
1504
1505         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1506                 "%d:0469 lpfc_link_speed attribute cannot be set to %d, "
1507                 "allowed range is [0, 8]\n",
1508                 phba->brd_no, val);
1509         return -EINVAL;
1510 }
1511
1512 static int lpfc_link_speed = 0;
1513 module_param(lpfc_link_speed, int, 0);
1514 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
1515 lpfc_param_show(link_speed)
1516 static int
1517 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
1518 {
1519         if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
1520                 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
1521                 phba->cfg_link_speed = val;
1522                 return 0;
1523         }
1524         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1525                         "0454 lpfc_link_speed attribute cannot "
1526                         "be set to %d, allowed values are "
1527                         "["LPFC_LINK_SPEED_STRING"]\n", val);
1528         phba->cfg_link_speed = 0;
1529         return -EINVAL;
1530 }
1531
1532 lpfc_param_store(link_speed)
1533 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
1534                 lpfc_link_speed_show, lpfc_link_speed_store);
1535
1536 /*
1537 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1538 # Value range is [2,3]. Default value is 3.
1539 */
1540 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1541                   "Select Fibre Channel class of service for FCP sequences");
1542
1543 /*
1544 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1545 # is [0,1]. Default value is 0.
1546 */
1547 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1548                    "Use ADISC on rediscovery to authenticate FCP devices");
1549
1550 /*
1551 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1552 # range is [0,1]. Default value is 0.
1553 */
1554 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1555
1556 /*
1557 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1558 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1559 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1560 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1561 # cr_delay is set to 0.
1562 */
1563 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1564                 "interrupt response is generated");
1565
1566 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1567                 "interrupt response is generated");
1568
1569 /*
1570 # lpfc_multi_ring_support:  Determines how many rings to spread available
1571 # cmd/rsp IOCB entries across.
1572 # Value range is [1,2]. Default value is 1.
1573 */
1574 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1575                 "SLI rings to spread IOCB entries across");
1576
1577 /*
1578 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1579 # identifies what rctl value to configure the additional ring for.
1580 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1581 */
1582 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1583              255, "Identifies RCTL for additional ring configuration");
1584
1585 /*
1586 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1587 # identifies what type value to configure the additional ring for.
1588 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1589 */
1590 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1591              255, "Identifies TYPE for additional ring configuration");
1592
1593 /*
1594 # lpfc_fdmi_on: controls FDMI support.
1595 #       0 = no FDMI support
1596 #       1 = support FDMI without attribute of hostname
1597 #       2 = support FDMI with attribute of hostname
1598 # Value range [0,2]. Default value is 0.
1599 */
1600 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1601
1602 /*
1603 # Specifies the maximum number of ELS cmds we can have outstanding (for
1604 # discovery). Value range is [1,64]. Default value = 32.
1605 */
1606 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1607                  "during discovery");
1608
1609 /*
1610 # lpfc_max_luns: maximum allowed LUN.
1611 # Value range is [0,65535]. Default value is 255.
1612 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1613 */
1614 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1615
1616 /*
1617 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1618 # Value range is [1,255], default value is 10.
1619 */
1620 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1621              "Milliseconds driver will wait between polling FCP ring");
1622
1623 /*
1624 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1625 #               support this feature
1626 #       0  = MSI disabled (default)
1627 #       1  = MSI enabled
1628 #       2  = MSI-X enabled
1629 # Value range is [0,2]. Default value is 0.
1630 */
1631 LPFC_ATTR_R(use_msi, 0, 0, 2, "Use Message Signaled Interrupts (1) or "
1632             "MSI-X (2), if possible");
1633
1634 /*
1635 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
1636 #       0  = HBA resets disabled
1637 #       1  = HBA resets enabled (default)
1638 # Value range is [0,1]. Default value is 1.
1639 */
1640 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
1641
1642 /*
1643 # lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
1644 #       0  = HBA Heartbeat disabled
1645 #       1  = HBA Heartbeat enabled (default)
1646 # Value range is [0,1]. Default value is 1.
1647 */
1648 LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
1649
1650 /*
1651  * lpfc_sg_seg_cnt: Initial Maximum DMA Segment Count
1652  * This value can be set to values between 64 and 256. The default value is
1653  * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
1654  * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
1655  */
1656 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
1657             LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
1658
1659 struct device_attribute *lpfc_hba_attrs[] = {
1660         &dev_attr_info,
1661         &dev_attr_serialnum,
1662         &dev_attr_modeldesc,
1663         &dev_attr_modelname,
1664         &dev_attr_programtype,
1665         &dev_attr_portnum,
1666         &dev_attr_fwrev,
1667         &dev_attr_hdw,
1668         &dev_attr_option_rom_version,
1669         &dev_attr_state,
1670         &dev_attr_num_discovered_ports,
1671         &dev_attr_lpfc_drvr_version,
1672         &dev_attr_lpfc_temp_sensor,
1673         &dev_attr_lpfc_log_verbose,
1674         &dev_attr_lpfc_lun_queue_depth,
1675         &dev_attr_lpfc_hba_queue_depth,
1676         &dev_attr_lpfc_peer_port_login,
1677         &dev_attr_lpfc_nodev_tmo,
1678         &dev_attr_lpfc_devloss_tmo,
1679         &dev_attr_lpfc_fcp_class,
1680         &dev_attr_lpfc_use_adisc,
1681         &dev_attr_lpfc_ack0,
1682         &dev_attr_lpfc_topology,
1683         &dev_attr_lpfc_scan_down,
1684         &dev_attr_lpfc_link_speed,
1685         &dev_attr_lpfc_cr_delay,
1686         &dev_attr_lpfc_cr_count,
1687         &dev_attr_lpfc_multi_ring_support,
1688         &dev_attr_lpfc_multi_ring_rctl,
1689         &dev_attr_lpfc_multi_ring_type,
1690         &dev_attr_lpfc_fdmi_on,
1691         &dev_attr_lpfc_max_luns,
1692         &dev_attr_lpfc_enable_npiv,
1693         &dev_attr_nport_evt_cnt,
1694         &dev_attr_board_mode,
1695         &dev_attr_max_vpi,
1696         &dev_attr_used_vpi,
1697         &dev_attr_max_rpi,
1698         &dev_attr_used_rpi,
1699         &dev_attr_max_xri,
1700         &dev_attr_used_xri,
1701         &dev_attr_npiv_info,
1702         &dev_attr_issue_reset,
1703         &dev_attr_lpfc_poll,
1704         &dev_attr_lpfc_poll_tmo,
1705         &dev_attr_lpfc_use_msi,
1706         &dev_attr_lpfc_soft_wwnn,
1707         &dev_attr_lpfc_soft_wwpn,
1708         &dev_attr_lpfc_soft_wwn_enable,
1709         &dev_attr_lpfc_enable_hba_reset,
1710         &dev_attr_lpfc_enable_hba_heartbeat,
1711         &dev_attr_lpfc_sg_seg_cnt,
1712         NULL,
1713 };
1714
1715 struct device_attribute *lpfc_vport_attrs[] = {
1716         &dev_attr_info,
1717         &dev_attr_state,
1718         &dev_attr_num_discovered_ports,
1719         &dev_attr_lpfc_drvr_version,
1720         &dev_attr_lpfc_log_verbose,
1721         &dev_attr_lpfc_lun_queue_depth,
1722         &dev_attr_lpfc_nodev_tmo,
1723         &dev_attr_lpfc_devloss_tmo,
1724         &dev_attr_lpfc_hba_queue_depth,
1725         &dev_attr_lpfc_peer_port_login,
1726         &dev_attr_lpfc_restrict_login,
1727         &dev_attr_lpfc_fcp_class,
1728         &dev_attr_lpfc_use_adisc,
1729         &dev_attr_lpfc_fdmi_on,
1730         &dev_attr_lpfc_max_luns,
1731         &dev_attr_nport_evt_cnt,
1732         &dev_attr_npiv_info,
1733         &dev_attr_lpfc_enable_da_id,
1734         NULL,
1735 };
1736
1737 static ssize_t
1738 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1739                    char *buf, loff_t off, size_t count)
1740 {
1741         size_t buf_off;
1742         struct device *dev = container_of(kobj, struct device, kobj);
1743         struct Scsi_Host  *shost = class_to_shost(dev);
1744         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1745         struct lpfc_hba   *phba = vport->phba;
1746
1747         if ((off + count) > FF_REG_AREA_SIZE)
1748                 return -ERANGE;
1749
1750         if (count == 0) return 0;
1751
1752         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1753                 return -EINVAL;
1754
1755         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1756                 return -EPERM;
1757         }
1758
1759         spin_lock_irq(&phba->hbalock);
1760         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1761                 writel(*((uint32_t *)(buf + buf_off)),
1762                        phba->ctrl_regs_memmap_p + off + buf_off);
1763
1764         spin_unlock_irq(&phba->hbalock);
1765
1766         return count;
1767 }
1768
1769 static ssize_t
1770 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1771                   char *buf, loff_t off, size_t count)
1772 {
1773         size_t buf_off;
1774         uint32_t * tmp_ptr;
1775         struct device *dev = container_of(kobj, struct device, kobj);
1776         struct Scsi_Host  *shost = class_to_shost(dev);
1777         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1778         struct lpfc_hba   *phba = vport->phba;
1779
1780         if (off > FF_REG_AREA_SIZE)
1781                 return -ERANGE;
1782
1783         if ((off + count) > FF_REG_AREA_SIZE)
1784                 count = FF_REG_AREA_SIZE - off;
1785
1786         if (count == 0) return 0;
1787
1788         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1789                 return -EINVAL;
1790
1791         spin_lock_irq(&phba->hbalock);
1792
1793         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1794                 tmp_ptr = (uint32_t *)(buf + buf_off);
1795                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1796         }
1797
1798         spin_unlock_irq(&phba->hbalock);
1799
1800         return count;
1801 }
1802
1803 static struct bin_attribute sysfs_ctlreg_attr = {
1804         .attr = {
1805                 .name = "ctlreg",
1806                 .mode = S_IRUSR | S_IWUSR,
1807         },
1808         .size = 256,
1809         .read = sysfs_ctlreg_read,
1810         .write = sysfs_ctlreg_write,
1811 };
1812
1813
1814 static void
1815 sysfs_mbox_idle(struct lpfc_hba *phba)
1816 {
1817         phba->sysfs_mbox.state = SMBOX_IDLE;
1818         phba->sysfs_mbox.offset = 0;
1819
1820         if (phba->sysfs_mbox.mbox) {
1821                 mempool_free(phba->sysfs_mbox.mbox,
1822                              phba->mbox_mem_pool);
1823                 phba->sysfs_mbox.mbox = NULL;
1824         }
1825 }
1826
1827 static ssize_t
1828 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1829                  char *buf, loff_t off, size_t count)
1830 {
1831         struct device *dev = container_of(kobj, struct device, kobj);
1832         struct Scsi_Host  *shost = class_to_shost(dev);
1833         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1834         struct lpfc_hba   *phba = vport->phba;
1835         struct lpfcMboxq  *mbox = NULL;
1836
1837         if ((count + off) > MAILBOX_CMD_SIZE)
1838                 return -ERANGE;
1839
1840         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1841                 return -EINVAL;
1842
1843         if (count == 0)
1844                 return 0;
1845
1846         if (off == 0) {
1847                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1848                 if (!mbox)
1849                         return -ENOMEM;
1850                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1851         }
1852
1853         spin_lock_irq(&phba->hbalock);
1854
1855         if (off == 0) {
1856                 if (phba->sysfs_mbox.mbox)
1857                         mempool_free(mbox, phba->mbox_mem_pool);
1858                 else
1859                         phba->sysfs_mbox.mbox = mbox;
1860                 phba->sysfs_mbox.state = SMBOX_WRITING;
1861         } else {
1862                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1863                     phba->sysfs_mbox.offset != off           ||
1864                     phba->sysfs_mbox.mbox   == NULL) {
1865                         sysfs_mbox_idle(phba);
1866                         spin_unlock_irq(&phba->hbalock);
1867                         return -EAGAIN;
1868                 }
1869         }
1870
1871         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1872                buf, count);
1873
1874         phba->sysfs_mbox.offset = off + count;
1875
1876         spin_unlock_irq(&phba->hbalock);
1877
1878         return count;
1879 }
1880
1881 static ssize_t
1882 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1883                 char *buf, loff_t off, size_t count)
1884 {
1885         struct device *dev = container_of(kobj, struct device, kobj);
1886         struct Scsi_Host  *shost = class_to_shost(dev);
1887         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1888         struct lpfc_hba   *phba = vport->phba;
1889         int rc;
1890
1891         if (off > MAILBOX_CMD_SIZE)
1892                 return -ERANGE;
1893
1894         if ((count + off) > MAILBOX_CMD_SIZE)
1895                 count = MAILBOX_CMD_SIZE - off;
1896
1897         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1898                 return -EINVAL;
1899
1900         if (off && count == 0)
1901                 return 0;
1902
1903         spin_lock_irq(&phba->hbalock);
1904
1905         if (phba->over_temp_state == HBA_OVER_TEMP) {
1906                 sysfs_mbox_idle(phba);
1907                 spin_unlock_irq(&phba->hbalock);
1908                 return  -EACCES;
1909         }
1910
1911         if (off == 0 &&
1912             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1913             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1914
1915                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1916                         /* Offline only */
1917                 case MBX_INIT_LINK:
1918                 case MBX_DOWN_LINK:
1919                 case MBX_CONFIG_LINK:
1920                 case MBX_CONFIG_RING:
1921                 case MBX_RESET_RING:
1922                 case MBX_UNREG_LOGIN:
1923                 case MBX_CLEAR_LA:
1924                 case MBX_DUMP_CONTEXT:
1925                 case MBX_RUN_DIAGS:
1926                 case MBX_RESTART:
1927                 case MBX_SET_MASK:
1928                 case MBX_SET_DEBUG:
1929                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1930                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1931                                        "is illegal in on-line state\n",
1932                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1933                                 sysfs_mbox_idle(phba);
1934                                 spin_unlock_irq(&phba->hbalock);
1935                                 return -EPERM;
1936                         }
1937                 case MBX_WRITE_NV:
1938                 case MBX_WRITE_VPARMS:
1939                 case MBX_LOAD_SM:
1940                 case MBX_READ_NV:
1941                 case MBX_READ_CONFIG:
1942                 case MBX_READ_RCONFIG:
1943                 case MBX_READ_STATUS:
1944                 case MBX_READ_XRI:
1945                 case MBX_READ_REV:
1946                 case MBX_READ_LNK_STAT:
1947                 case MBX_DUMP_MEMORY:
1948                 case MBX_DOWN_LOAD:
1949                 case MBX_UPDATE_CFG:
1950                 case MBX_KILL_BOARD:
1951                 case MBX_LOAD_AREA:
1952                 case MBX_LOAD_EXP_ROM:
1953                 case MBX_BEACON:
1954                 case MBX_DEL_LD_ENTRY:
1955                 case MBX_SET_VARIABLE:
1956                 case MBX_WRITE_WWN:
1957                         break;
1958                 case MBX_READ_SPARM64:
1959                 case MBX_READ_LA:
1960                 case MBX_READ_LA64:
1961                 case MBX_REG_LOGIN:
1962                 case MBX_REG_LOGIN64:
1963                 case MBX_CONFIG_PORT:
1964                 case MBX_RUN_BIU_DIAG:
1965                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1966                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1967                         sysfs_mbox_idle(phba);
1968                         spin_unlock_irq(&phba->hbalock);
1969                         return -EPERM;
1970                 default:
1971                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1972                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1973                         sysfs_mbox_idle(phba);
1974                         spin_unlock_irq(&phba->hbalock);
1975                         return -EPERM;
1976                 }
1977
1978                 /* If HBA encountered an error attention, allow only DUMP
1979                  * or RESTART mailbox commands until the HBA is restarted.
1980                  */
1981                 if ((phba->pport->stopped) &&
1982                         (phba->sysfs_mbox.mbox->mb.mbxCommand !=
1983                                 MBX_DUMP_MEMORY &&
1984                          phba->sysfs_mbox.mbox->mb.mbxCommand !=
1985                                 MBX_RESTART &&
1986                          phba->sysfs_mbox.mbox->mb.mbxCommand !=
1987                                 MBX_WRITE_VPARMS)) {
1988                         sysfs_mbox_idle(phba);
1989                         spin_unlock_irq(&phba->hbalock);
1990                         return -EPERM;
1991                 }
1992
1993                 phba->sysfs_mbox.mbox->vport = vport;
1994
1995                 /* Don't allow mailbox commands to be sent when blocked
1996                  * or when in the middle of discovery
1997                  */
1998                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO ||
1999                     vport->fc_flag & FC_NDISC_ACTIVE) {
2000                         sysfs_mbox_idle(phba);
2001                         spin_unlock_irq(&phba->hbalock);
2002                         return  -EAGAIN;
2003                 }
2004
2005                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2006                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
2007
2008                         spin_unlock_irq(&phba->hbalock);
2009                         rc = lpfc_sli_issue_mbox (phba,
2010                                                   phba->sysfs_mbox.mbox,
2011                                                   MBX_POLL);
2012                         spin_lock_irq(&phba->hbalock);
2013
2014                 } else {
2015                         spin_unlock_irq(&phba->hbalock);
2016                         rc = lpfc_sli_issue_mbox_wait (phba,
2017                                                        phba->sysfs_mbox.mbox,
2018                                 lpfc_mbox_tmo_val(phba,
2019                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
2020                         spin_lock_irq(&phba->hbalock);
2021                 }
2022
2023                 if (rc != MBX_SUCCESS) {
2024                         if (rc == MBX_TIMEOUT) {
2025                                 phba->sysfs_mbox.mbox = NULL;
2026                         }
2027                         sysfs_mbox_idle(phba);
2028                         spin_unlock_irq(&phba->hbalock);
2029                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
2030                 }
2031                 phba->sysfs_mbox.state = SMBOX_READING;
2032         }
2033         else if (phba->sysfs_mbox.offset != off ||
2034                  phba->sysfs_mbox.state  != SMBOX_READING) {
2035                 printk(KERN_WARNING  "mbox_read: Bad State\n");
2036                 sysfs_mbox_idle(phba);
2037                 spin_unlock_irq(&phba->hbalock);
2038                 return -EAGAIN;
2039         }
2040
2041         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
2042
2043         phba->sysfs_mbox.offset = off + count;
2044
2045         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
2046                 sysfs_mbox_idle(phba);
2047
2048         spin_unlock_irq(&phba->hbalock);
2049
2050         return count;
2051 }
2052
2053 static struct bin_attribute sysfs_mbox_attr = {
2054         .attr = {
2055                 .name = "mbox",
2056                 .mode = S_IRUSR | S_IWUSR,
2057         },
2058         .size = MAILBOX_CMD_SIZE,
2059         .read = sysfs_mbox_read,
2060         .write = sysfs_mbox_write,
2061 };
2062
2063 int
2064 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
2065 {
2066         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2067         int error;
2068
2069         error = sysfs_create_bin_file(&shost->shost_dev.kobj,
2070                                       &sysfs_ctlreg_attr);
2071         if (error)
2072                 goto out;
2073
2074         error = sysfs_create_bin_file(&shost->shost_dev.kobj,
2075                                       &sysfs_mbox_attr);
2076         if (error)
2077                 goto out_remove_ctlreg_attr;
2078
2079         return 0;
2080 out_remove_ctlreg_attr:
2081         sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
2082 out:
2083         return error;
2084 }
2085
2086 void
2087 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
2088 {
2089         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2090
2091         sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
2092         sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
2093 }
2094
2095
2096 /*
2097  * Dynamic FC Host Attributes Support
2098  */
2099
2100 static void
2101 lpfc_get_host_port_id(struct Scsi_Host *shost)
2102 {
2103         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2104
2105         /* note: fc_myDID already in cpu endianness */
2106         fc_host_port_id(shost) = vport->fc_myDID;
2107 }
2108
2109 static void
2110 lpfc_get_host_port_type(struct Scsi_Host *shost)
2111 {
2112         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2113         struct lpfc_hba   *phba = vport->phba;
2114
2115         spin_lock_irq(shost->host_lock);
2116
2117         if (vport->port_type == LPFC_NPIV_PORT) {
2118                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
2119         } else if (lpfc_is_link_up(phba)) {
2120                 if (phba->fc_topology == TOPOLOGY_LOOP) {
2121                         if (vport->fc_flag & FC_PUBLIC_LOOP)
2122                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
2123                         else
2124                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
2125                 } else {
2126                         if (vport->fc_flag & FC_FABRIC)
2127                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
2128                         else
2129                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
2130                 }
2131         } else
2132                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
2133
2134         spin_unlock_irq(shost->host_lock);
2135 }
2136
2137 static void
2138 lpfc_get_host_port_state(struct Scsi_Host *shost)
2139 {
2140         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2141         struct lpfc_hba   *phba = vport->phba;
2142
2143         spin_lock_irq(shost->host_lock);
2144
2145         if (vport->fc_flag & FC_OFFLINE_MODE)
2146                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
2147         else {
2148                 switch (phba->link_state) {
2149                 case LPFC_LINK_UNKNOWN:
2150                 case LPFC_LINK_DOWN:
2151                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
2152                         break;
2153                 case LPFC_LINK_UP:
2154                 case LPFC_CLEAR_LA:
2155                 case LPFC_HBA_READY:
2156                         /* Links up, beyond this port_type reports state */
2157                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
2158                         break;
2159                 case LPFC_HBA_ERROR:
2160                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
2161                         break;
2162                 default:
2163                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
2164                         break;
2165                 }
2166         }
2167
2168         spin_unlock_irq(shost->host_lock);
2169 }
2170
2171 static void
2172 lpfc_get_host_speed(struct Scsi_Host *shost)
2173 {
2174         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2175         struct lpfc_hba   *phba = vport->phba;
2176
2177         spin_lock_irq(shost->host_lock);
2178
2179         if (lpfc_is_link_up(phba)) {
2180                 switch(phba->fc_linkspeed) {
2181                         case LA_1GHZ_LINK:
2182                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
2183                         break;
2184                         case LA_2GHZ_LINK:
2185                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
2186                         break;
2187                         case LA_4GHZ_LINK:
2188                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
2189                         break;
2190                         case LA_8GHZ_LINK:
2191                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2192                         break;
2193                         default:
2194                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2195                         break;
2196                 }
2197         } else
2198                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2199
2200         spin_unlock_irq(shost->host_lock);
2201 }
2202
2203 static void
2204 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2205 {
2206         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2207         struct lpfc_hba   *phba = vport->phba;
2208         u64 node_name;
2209
2210         spin_lock_irq(shost->host_lock);
2211
2212         if ((vport->fc_flag & FC_FABRIC) ||
2213             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2214              (vport->fc_flag & FC_PUBLIC_LOOP)))
2215                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2216         else
2217                 /* fabric is local port if there is no F/FL_Port */
2218                 node_name = 0;
2219
2220         spin_unlock_irq(shost->host_lock);
2221
2222         fc_host_fabric_name(shost) = node_name;
2223 }
2224
2225 static struct fc_host_statistics *
2226 lpfc_get_stats(struct Scsi_Host *shost)
2227 {
2228         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2229         struct lpfc_hba   *phba = vport->phba;
2230         struct lpfc_sli   *psli = &phba->sli;
2231         struct fc_host_statistics *hs = &phba->link_stats;
2232         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2233         LPFC_MBOXQ_t *pmboxq;
2234         MAILBOX_t *pmb;
2235         unsigned long seconds;
2236         int rc = 0;
2237
2238         /*
2239          * prevent udev from issuing mailbox commands until the port is
2240          * configured.
2241          */
2242         if (phba->link_state < LPFC_LINK_DOWN ||
2243             !phba->mbox_mem_pool ||
2244             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2245                 return NULL;
2246
2247         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2248                 return NULL;
2249
2250         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2251         if (!pmboxq)
2252                 return NULL;
2253         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2254
2255         pmb = &pmboxq->mb;
2256         pmb->mbxCommand = MBX_READ_STATUS;
2257         pmb->mbxOwner = OWN_HOST;
2258         pmboxq->context1 = NULL;
2259         pmboxq->vport = vport;
2260
2261         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2262                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2263                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2264         else
2265                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2266
2267         if (rc != MBX_SUCCESS) {
2268                 if (rc != MBX_TIMEOUT)
2269                         mempool_free(pmboxq, phba->mbox_mem_pool);
2270                 return NULL;
2271         }
2272
2273         memset(hs, 0, sizeof (struct fc_host_statistics));
2274
2275         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2276         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2277         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2278         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2279
2280         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2281         pmb->mbxCommand = MBX_READ_LNK_STAT;
2282         pmb->mbxOwner = OWN_HOST;
2283         pmboxq->context1 = NULL;
2284         pmboxq->vport = vport;
2285
2286         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2287             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2288                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2289         else
2290                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2291
2292         if (rc != MBX_SUCCESS) {
2293                 if (rc != MBX_TIMEOUT)
2294                         mempool_free(pmboxq, phba->mbox_mem_pool);
2295                 return NULL;
2296         }
2297
2298         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2299         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2300         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2301         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2302         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2303         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2304         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2305
2306         hs->link_failure_count -= lso->link_failure_count;
2307         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2308         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2309         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2310         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2311         hs->invalid_crc_count -= lso->invalid_crc_count;
2312         hs->error_frames -= lso->error_frames;
2313
2314         if (phba->fc_topology == TOPOLOGY_LOOP) {
2315                 hs->lip_count = (phba->fc_eventTag >> 1);
2316                 hs->lip_count -= lso->link_events;
2317                 hs->nos_count = -1;
2318         } else {
2319                 hs->lip_count = -1;
2320                 hs->nos_count = (phba->fc_eventTag >> 1);
2321                 hs->nos_count -= lso->link_events;
2322         }
2323
2324         hs->dumped_frames = -1;
2325
2326         seconds = get_seconds();
2327         if (seconds < psli->stats_start)
2328                 hs->seconds_since_last_reset = seconds +
2329                                 ((unsigned long)-1 - psli->stats_start);
2330         else
2331                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2332
2333         mempool_free(pmboxq, phba->mbox_mem_pool);
2334
2335         return hs;
2336 }
2337
2338 static void
2339 lpfc_reset_stats(struct Scsi_Host *shost)
2340 {
2341         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2342         struct lpfc_hba   *phba = vport->phba;
2343         struct lpfc_sli   *psli = &phba->sli;
2344         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2345         LPFC_MBOXQ_t *pmboxq;
2346         MAILBOX_t *pmb;
2347         int rc = 0;
2348
2349         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2350                 return;
2351
2352         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2353         if (!pmboxq)
2354                 return;
2355         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2356
2357         pmb = &pmboxq->mb;
2358         pmb->mbxCommand = MBX_READ_STATUS;
2359         pmb->mbxOwner = OWN_HOST;
2360         pmb->un.varWords[0] = 0x1; /* reset request */
2361         pmboxq->context1 = NULL;
2362         pmboxq->vport = vport;
2363
2364         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2365                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2366                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2367         else
2368                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2369
2370         if (rc != MBX_SUCCESS) {
2371                 if (rc != MBX_TIMEOUT)
2372                         mempool_free(pmboxq, phba->mbox_mem_pool);
2373                 return;
2374         }
2375
2376         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2377         pmb->mbxCommand = MBX_READ_LNK_STAT;
2378         pmb->mbxOwner = OWN_HOST;
2379         pmboxq->context1 = NULL;
2380         pmboxq->vport = vport;
2381
2382         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2383             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2384                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2385         else
2386                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2387
2388         if (rc != MBX_SUCCESS) {
2389                 if (rc != MBX_TIMEOUT)
2390                         mempool_free( pmboxq, phba->mbox_mem_pool);
2391                 return;
2392         }
2393
2394         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2395         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2396         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2397         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2398         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2399         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2400         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2401         lso->link_events = (phba->fc_eventTag >> 1);
2402
2403         psli->stats_start = get_seconds();
2404
2405         mempool_free(pmboxq, phba->mbox_mem_pool);
2406
2407         return;
2408 }
2409
2410 /*
2411  * The LPFC driver treats linkdown handling as target loss events so there
2412  * are no sysfs handlers for link_down_tmo.
2413  */
2414
2415 static struct lpfc_nodelist *
2416 lpfc_get_node_by_target(struct scsi_target *starget)
2417 {
2418         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2419         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2420         struct lpfc_nodelist *ndlp;
2421
2422         spin_lock_irq(shost->host_lock);
2423         /* Search for this, mapped, target ID */
2424         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2425                 if (NLP_CHK_NODE_ACT(ndlp) &&
2426                     ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2427                     starget->id == ndlp->nlp_sid) {
2428                         spin_unlock_irq(shost->host_lock);
2429                         return ndlp;
2430                 }
2431         }
2432         spin_unlock_irq(shost->host_lock);
2433         return NULL;
2434 }
2435
2436 static void
2437 lpfc_get_starget_port_id(struct scsi_target *starget)
2438 {
2439         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2440
2441         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2442 }
2443
2444 static void
2445 lpfc_get_starget_node_name(struct scsi_target *starget)
2446 {
2447         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2448
2449         fc_starget_node_name(starget) =
2450                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2451 }
2452
2453 static void
2454 lpfc_get_starget_port_name(struct scsi_target *starget)
2455 {
2456         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2457
2458         fc_starget_port_name(starget) =
2459                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2460 }
2461
2462 static void
2463 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2464 {
2465         if (timeout)
2466                 rport->dev_loss_tmo = timeout;
2467         else
2468                 rport->dev_loss_tmo = 1;
2469 }
2470
2471
2472 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2473 static ssize_t                                                          \
2474 lpfc_show_rport_##field (struct device *dev,                            \
2475                          struct device_attribute *attr,                 \
2476                          char *buf)                                     \
2477 {                                                                       \
2478         struct fc_rport *rport = transport_class_to_rport(dev);         \
2479         struct lpfc_rport_data *rdata = rport->hostdata;                \
2480         return snprintf(buf, sz, format_string,                         \
2481                 (rdata->target) ? cast rdata->target->field : 0);       \
2482 }
2483
2484 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2485         lpfc_rport_show_function(field, format_string, sz, )            \
2486 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2487
2488
2489 struct fc_function_template lpfc_transport_functions = {
2490         /* fixed attributes the driver supports */
2491         .show_host_node_name = 1,
2492         .show_host_port_name = 1,
2493         .show_host_supported_classes = 1,
2494         .show_host_supported_fc4s = 1,
2495         .show_host_supported_speeds = 1,
2496         .show_host_maxframe_size = 1,
2497
2498         /* dynamic attributes the driver supports */
2499         .get_host_port_id = lpfc_get_host_port_id,
2500         .show_host_port_id = 1,
2501
2502         .get_host_port_type = lpfc_get_host_port_type,
2503         .show_host_port_type = 1,
2504
2505         .get_host_port_state = lpfc_get_host_port_state,
2506         .show_host_port_state = 1,
2507
2508         /* active_fc4s is shown but doesn't change (thus no get function) */
2509         .show_host_active_fc4s = 1,
2510
2511         .get_host_speed = lpfc_get_host_speed,
2512         .show_host_speed = 1,
2513
2514         .get_host_fabric_name = lpfc_get_host_fabric_name,
2515         .show_host_fabric_name = 1,
2516
2517         /*
2518          * The LPFC driver treats linkdown handling as target loss events
2519          * so there are no sysfs handlers for link_down_tmo.
2520          */
2521
2522         .get_fc_host_stats = lpfc_get_stats,
2523         .reset_fc_host_stats = lpfc_reset_stats,
2524
2525         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2526         .show_rport_maxframe_size = 1,
2527         .show_rport_supported_classes = 1,
2528
2529         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2530         .show_rport_dev_loss_tmo = 1,
2531
2532         .get_starget_port_id  = lpfc_get_starget_port_id,
2533         .show_starget_port_id = 1,
2534
2535         .get_starget_node_name = lpfc_get_starget_node_name,
2536         .show_starget_node_name = 1,
2537
2538         .get_starget_port_name = lpfc_get_starget_port_name,
2539         .show_starget_port_name = 1,
2540
2541         .issue_fc_host_lip = lpfc_issue_lip,
2542         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2543         .terminate_rport_io = lpfc_terminate_rport_io,
2544
2545         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2546 };
2547
2548 struct fc_function_template lpfc_vport_transport_functions = {
2549         /* fixed attributes the driver supports */
2550         .show_host_node_name = 1,
2551         .show_host_port_name = 1,
2552         .show_host_supported_classes = 1,
2553         .show_host_supported_fc4s = 1,
2554         .show_host_supported_speeds = 1,
2555         .show_host_maxframe_size = 1,
2556
2557         /* dynamic attributes the driver supports */
2558         .get_host_port_id = lpfc_get_host_port_id,
2559         .show_host_port_id = 1,
2560
2561         .get_host_port_type = lpfc_get_host_port_type,
2562         .show_host_port_type = 1,
2563
2564         .get_host_port_state = lpfc_get_host_port_state,
2565         .show_host_port_state = 1,
2566
2567         /* active_fc4s is shown but doesn't change (thus no get function) */
2568         .show_host_active_fc4s = 1,
2569
2570         .get_host_speed = lpfc_get_host_speed,
2571         .show_host_speed = 1,
2572
2573         .get_host_fabric_name = lpfc_get_host_fabric_name,
2574         .show_host_fabric_name = 1,
2575
2576         /*
2577          * The LPFC driver treats linkdown handling as target loss events
2578          * so there are no sysfs handlers for link_down_tmo.
2579          */
2580
2581         .get_fc_host_stats = lpfc_get_stats,
2582         .reset_fc_host_stats = lpfc_reset_stats,
2583
2584         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2585         .show_rport_maxframe_size = 1,
2586         .show_rport_supported_classes = 1,
2587
2588         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2589         .show_rport_dev_loss_tmo = 1,
2590
2591         .get_starget_port_id  = lpfc_get_starget_port_id,
2592         .show_starget_port_id = 1,
2593
2594         .get_starget_node_name = lpfc_get_starget_node_name,
2595         .show_starget_node_name = 1,
2596
2597         .get_starget_port_name = lpfc_get_starget_port_name,
2598         .show_starget_port_name = 1,
2599
2600         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2601         .terminate_rport_io = lpfc_terminate_rport_io,
2602
2603         .vport_disable = lpfc_vport_disable,
2604 };
2605
2606 void
2607 lpfc_get_cfgparam(struct lpfc_hba *phba)
2608 {
2609         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2610         lpfc_cr_count_init(phba, lpfc_cr_count);
2611         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2612         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2613         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2614         lpfc_ack0_init(phba, lpfc_ack0);
2615         lpfc_topology_init(phba, lpfc_topology);
2616         lpfc_link_speed_init(phba, lpfc_link_speed);
2617         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2618         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2619         lpfc_use_msi_init(phba, lpfc_use_msi);
2620         lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
2621         lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
2622         phba->cfg_poll = lpfc_poll;
2623         phba->cfg_soft_wwnn = 0L;
2624         phba->cfg_soft_wwpn = 0L;
2625         lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
2626         /* Also reinitialize the host templates with new values. */
2627         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
2628         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
2629         /*
2630          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2631          * used to create the sg_dma_buf_pool must be dynamically calculated.
2632          * 2 segments are added since the IOCB needs a command and response bde.
2633          */
2634         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2635                         sizeof(struct fcp_rsp) +
2636                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
2637         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2638         return;
2639 }
2640
2641 void
2642 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2643 {
2644         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2645         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2646         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2647         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2648         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2649         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2650         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2651         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2652         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2653         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2654         lpfc_max_luns_init(vport, lpfc_max_luns);
2655         lpfc_scan_down_init(vport, lpfc_scan_down);
2656         lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
2657         return;
2658 }