drivers/scsi/lpfc/lpfc_attr.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2005 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/pci.h>
  24 #include <linux/interrupt.h>
  25
  26 #include <scsi/scsi.h>
  27 #include <scsi/scsi_device.h>
  28 #include <scsi/scsi_host.h>
  29 #include <scsi/scsi_tcq.h>
  30 #include <scsi/scsi_transport_fc.h>
  31
  32 #include "lpfc_hw.h"
  33 #include "lpfc_sli.h"
  34 #include "lpfc_disc.h"
  35 #include "lpfc_scsi.h"
  36 #include "lpfc.h"
  37 #include "lpfc_logmsg.h"
  38 #include "lpfc_version.h"
  39 #include "lpfc_compat.h"
  40 #include "lpfc_crtn.h"
  41
  42
  43 static void
  44 lpfc_jedec_to_ascii(int incr, char hdw[])
  45 {
  46         int i, j;
  47         for (i = 0; i < 8; i++) {
  48                 j = (incr & 0xf);
  49                 if (j <= 9)
  50                         hdw[7 - i] = 0x30 +  j;
  51                  else
  52                         hdw[7 - i] = 0x61 + j - 10;
  53                 incr = (incr >> 4);
  54         }
  55         hdw[8] = 0;
  56         return;
  57 }
  58
  59 static ssize_t
  60 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
  61 {
  62         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  63 }
  64
  65 static ssize_t
  66 management_version_show(struct class_device *cdev, char *buf)
  67 {
  68         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
  69 }
  70
  71 static ssize_t
  72 lpfc_info_show(struct class_device *cdev, char *buf)
  73 {
  74         struct Scsi_Host *host = class_to_shost(cdev);
  75         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  76 }
  77
  78 static ssize_t
  79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
  80 {
  81         struct Scsi_Host *host = class_to_shost(cdev);
  82         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
  83         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  84 }
  85
  86 static ssize_t
  87 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
  88 {
  89         struct Scsi_Host *host = class_to_shost(cdev);
  90         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
  91         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
  92 }
  93
  94 static ssize_t
  95 lpfc_modelname_show(struct class_device *cdev, char *buf)
  96 {
  97         struct Scsi_Host *host = class_to_shost(cdev);
  98         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
  99         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
 100 }
 101
 102 static ssize_t
 103 lpfc_programtype_show(struct class_device *cdev, char *buf)
 104 {
 105         struct Scsi_Host *host = class_to_shost(cdev);
 106         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 107         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
 108 }
 109
 110 static ssize_t
 111 lpfc_portnum_show(struct class_device *cdev, char *buf)
 112 {
 113         struct Scsi_Host *host = class_to_shost(cdev);
 114         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 115         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
 116 }
 117
 118 static ssize_t
 119 lpfc_fwrev_show(struct class_device *cdev, char *buf)
 120 {
 121         struct Scsi_Host *host = class_to_shost(cdev);
 122         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 123         char fwrev[32];
 124         lpfc_decode_firmware_rev(phba, fwrev, 1);
 125         return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
 126 }
 127
 128 static ssize_t
 129 lpfc_hdw_show(struct class_device *cdev, char *buf)
 130 {
 131         char hdw[9];
 132         struct Scsi_Host *host = class_to_shost(cdev);
 133         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 134         lpfc_vpd_t *vp = &phba->vpd;
 135         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
 136         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
 137 }
 138 static ssize_t
 139 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
 140 {
 141         struct Scsi_Host *host = class_to_shost(cdev);
 142         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 143         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
 144 }
 145 static ssize_t
 146 lpfc_state_show(struct class_device *cdev, char *buf)
 147 {
 148         struct Scsi_Host *host = class_to_shost(cdev);
 149         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 150         int len = 0;
 151         switch (phba->hba_state) {
 152         case LPFC_INIT_START:
 153         case LPFC_INIT_MBX_CMDS:
 154         case LPFC_LINK_DOWN:
 155                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
 156                 break;
 157         case LPFC_LINK_UP:
 158         case LPFC_LOCAL_CFG_LINK:
 159                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
 160                 break;
 161         case LPFC_FLOGI:
 162         case LPFC_FABRIC_CFG_LINK:
 163         case LPFC_NS_REG:
 164         case LPFC_NS_QRY:
 165         case LPFC_BUILD_DISC_LIST:
 166         case LPFC_DISC_AUTH:
 167         case LPFC_CLEAR_LA:
 168                 len += snprintf(buf + len, PAGE_SIZE-len,
 169                                 "Link Up - Discovery\n");
 170                 break;
 171         case LPFC_HBA_READY:
 172                 len += snprintf(buf + len, PAGE_SIZE-len,
 173                                 "Link Up - Ready:\n");
 174                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 175                         if (phba->fc_flag & FC_PUBLIC_LOOP)
 176                                 len += snprintf(buf + len, PAGE_SIZE-len,
 177                                                 "   Public Loop\n");
 178                         else
 179                                 len += snprintf(buf + len, PAGE_SIZE-len,
 180                                                 "   Private Loop\n");
 181                 } else {
 182                         if (phba->fc_flag & FC_FABRIC)
 183                                 len += snprintf(buf + len, PAGE_SIZE-len,
 184                                                 "   Fabric\n");
 185                         else
 186                                 len += snprintf(buf + len, PAGE_SIZE-len,
 187                                                 "   Point-2-Point\n");
 188                 }
 189         }
 190         return len;
 191 }
 192
 193 static ssize_t
 194 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
 195 {
 196         struct Scsi_Host *host = class_to_shost(cdev);
 197         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 198         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
 199                                                         phba->fc_unmap_cnt);
 200 }
 201
 202
 203 static int
 204 lpfc_issue_lip(struct Scsi_Host *host)
 205 {
 206         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0];
 207         LPFC_MBOXQ_t *pmboxq;
 208         int mbxstatus = MBXERR_ERROR;
 209
 210         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 211             (phba->hba_state != LPFC_HBA_READY))
 212                 return -EPERM;
 213
 214         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
 215
 216         if (!pmboxq)
 217                 return -ENOMEM;
 218
 219         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 220         lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
 221         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
 222
 223         if (mbxstatus == MBX_TIMEOUT)
 224                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 225         else
 226                 mempool_free(pmboxq, phba->mbox_mem_pool);
 227
 228         if (mbxstatus == MBXERR_ERROR)
 229                 return -EIO;
 230
 231         return 0;
 232 }
 233
 234 static ssize_t
 235 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
 236 {
 237         struct Scsi_Host *host = class_to_shost(cdev);
 238         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 239         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 240 }
 241
 242 static ssize_t
 243 lpfc_board_online_show(struct class_device *cdev, char *buf)
 244 {
 245         struct Scsi_Host *host = class_to_shost(cdev);
 246         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 247
 248         if (phba->fc_flag & FC_OFFLINE_MODE)
 249                 return snprintf(buf, PAGE_SIZE, "0\n");
 250         else
 251                 return snprintf(buf, PAGE_SIZE, "1\n");
 252 }
 253
 254 static ssize_t
 255 lpfc_board_online_store(struct class_device *cdev, const char *buf,
 256                                                                 size_t count)
 257 {
 258         struct Scsi_Host *host = class_to_shost(cdev);
 259         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 260         struct completion online_compl;
 261         int val=0, status=0;
 262
 263         if (sscanf(buf, "%d", &val) != 1)
 264                 return -EINVAL;
 265
 266         init_completion(&online_compl);
 267
 268         if (val)
 269                 lpfc_workq_post_event(phba, &status, &online_compl,
 270                                                         LPFC_EVT_ONLINE);
 271         else
 272                 lpfc_workq_post_event(phba, &status, &online_compl,
 273                                                         LPFC_EVT_OFFLINE);
 274         wait_for_completion(&online_compl);
 275         if (!status)
 276                 return strlen(buf);
 277         else
 278                 return -EIO;
 279 }
 280
 281
 282 #define lpfc_param_show(attr)   \
 283 static ssize_t \
 284 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 285 { \
 286         struct Scsi_Host *host = class_to_shost(cdev);\
 287         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
 288         int val = 0;\
 289         val = phba->cfg_##attr;\
 290         return snprintf(buf, PAGE_SIZE, "%d\n",\
 291                         phba->cfg_##attr);\
 292 }
 293
 294 #define lpfc_param_hex_show(attr)       \
 295 static ssize_t \
 296 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
 297 { \
 298         struct Scsi_Host *host = class_to_shost(cdev);\
 299         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
 300         int val = 0;\
 301         val = phba->cfg_##attr;\
 302         return snprintf(buf, PAGE_SIZE, "%#x\n",\
 303                         phba->cfg_##attr);\
 304 }
 305
 306 #define lpfc_param_init(attr, default, minval, maxval)  \
 307 static int \
 308 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 309 { \
 310         if (val >= minval && val <= maxval) {\
 311                 phba->cfg_##attr = val;\
 312                 return 0;\
 313         }\
 314         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 315                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 316                         "allowed range is ["#minval", "#maxval"]\n", \
 317                         phba->brd_no, val); \
 318         phba->cfg_##attr = default;\
 319         return -EINVAL;\
 320 }
 321
 322 #define lpfc_param_set(attr, default, minval, maxval)   \
 323 static int \
 324 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 325 { \
 326         if (val >= minval && val <= maxval) {\
 327                 phba->cfg_##attr = val;\
 328                 return 0;\
 329         }\
 330         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 331                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 332                         "allowed range is ["#minval", "#maxval"]\n", \
 333                         phba->brd_no, val); \
 334         return -EINVAL;\
 335 }
 336
 337 #define lpfc_param_store(attr)  \
 338 static ssize_t \
 339 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 340 { \
 341         struct Scsi_Host *host = class_to_shost(cdev);\
 342         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
 343         int val=0;\
 344         if (!isdigit(buf[0]))\
 345                 return -EINVAL;\
 346         if (sscanf(buf, "%i", &val) != 1)\
 347                 return -EINVAL;\
 348         if (lpfc_##attr##_set(phba, val) == 0) \
 349                 return strlen(buf);\
 350         else \
 351                 return -EINVAL;\
 352 }
 353
 354 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 355 static int lpfc_##name = defval;\
 356 module_param(lpfc_##name, int, 0);\
 357 MODULE_PARM_DESC(lpfc_##name, desc);\
 358 lpfc_param_init(name, defval, minval, maxval)
 359
 360 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 361 static int lpfc_##name = defval;\
 362 module_param(lpfc_##name, int, 0);\
 363 MODULE_PARM_DESC(lpfc_##name, desc);\
 364 lpfc_param_show(name)\
 365 lpfc_param_init(name, defval, minval, maxval)\
 366 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 367
 368 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 369 static int lpfc_##name = defval;\
 370 module_param(lpfc_##name, int, 0);\
 371 MODULE_PARM_DESC(lpfc_##name, desc);\
 372 lpfc_param_show(name)\
 373 lpfc_param_init(name, defval, minval, maxval)\
 374 lpfc_param_set(name, defval, minval, maxval)\
 375 lpfc_param_store(name)\
 376 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 377                          lpfc_##name##_show, lpfc_##name##_store)
 378
 379 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 380 static int lpfc_##name = defval;\
 381 module_param(lpfc_##name, int, 0);\
 382 MODULE_PARM_DESC(lpfc_##name, desc);\
 383 lpfc_param_hex_show(name)\
 384 lpfc_param_init(name, defval, minval, maxval)\
 385 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 386
 387 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 388 static int lpfc_##name = defval;\
 389 module_param(lpfc_##name, int, 0);\
 390 MODULE_PARM_DESC(lpfc_##name, desc);\
 391 lpfc_param_hex_show(name)\
 392 lpfc_param_init(name, defval, minval, maxval)\
 393 lpfc_param_set(name, defval, minval, maxval)\
 394 lpfc_param_store(name)\
 395 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 396                          lpfc_##name##_show, lpfc_##name##_store)
 397
 398 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 399 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 400 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 401 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 402 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 403 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
 404 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 405 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 406 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 407 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 408                                         lpfc_option_rom_version_show, NULL);
 409 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 410                                         lpfc_num_discovered_ports_show, NULL);
 411 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 412 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 413                          NULL);
 414 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 415                          NULL);
 416 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
 417                          lpfc_board_online_show, lpfc_board_online_store);
 418
 419
 420 /*
 421 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 422 # deluged with LOTS of information.
 423 # You can set a bit mask to record specific types of verbose messages:
 424 #
 425 # LOG_ELS                       0x1        ELS events
 426 # LOG_DISCOVERY                 0x2        Link discovery events
 427 # LOG_MBOX                      0x4        Mailbox events
 428 # LOG_INIT                      0x8        Initialization events
 429 # LOG_LINK_EVENT                0x10       Link events
 430 # LOG_IP                        0x20       IP traffic history
 431 # LOG_FCP                       0x40       FCP traffic history
 432 # LOG_NODE                      0x80       Node table events
 433 # LOG_MISC                      0x400      Miscellaneous events
 434 # LOG_SLI                       0x800      SLI events
 435 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 436 # LOG_LIBDFC                    0x2000     LIBDFC events
 437 # LOG_ALL_MSG                   0xffff     LOG all messages
 438 */
 439 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 440
 441 /*
 442 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 443 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 444 */
 445 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 446             "Max number of FCP commands we can queue to a specific LUN");
 447
 448 /*
 449 # Some disk devices have a "select ID" or "select Target" capability.
 450 # From a protocol standpoint "select ID" usually means select the
 451 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 452 # annex" which contains a table that maps a "select ID" (a number
 453 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 454 # older drivers, the lpfc driver scans this table from low ALPA to high
 455 # ALPA.
 456 #
 457 # Turning on the scan-down variable (on  = 1, off = 0) will
 458 # cause the lpfc driver to use an inverted table, effectively
 459 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 460 #
 461 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 462 # and will not work across a fabric. Also this parameter will take
 463 # effect only in the case when ALPA map is not available.)
 464 */
 465 LPFC_ATTR_R(scan_down, 1, 0, 1,
 466              "Start scanning for devices from highest ALPA to lowest");
 467
 468 /*
 469 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 470 # until the timer expires. Value range is [0,255]. Default value is 30.
 471 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
 472 */
 473 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
 474              "Seconds driver will hold I/O waiting for a device to come back");
 475
 476 /*
 477 # lpfc_topology:  link topology for init link
 478 #            0x0  = attempt loop mode then point-to-point
 479 #            0x02 = attempt point-to-point mode only
 480 #            0x04 = attempt loop mode only
 481 #            0x06 = attempt point-to-point mode then loop
 482 # Set point-to-point mode if you want to run as an N_Port.
 483 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 484 # Default value is 0.
 485 */
 486 LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
 487
 488 /*
 489 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 490 # connection.
 491 #       0  = auto select (default)
 492 #       1  = 1 Gigabaud
 493 #       2  = 2 Gigabaud
 494 #       4  = 4 Gigabaud
 495 # Value range is [0,4]. Default value is 0.
 496 */
 497 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 498
 499 /*
 500 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 501 # Value range is [2,3]. Default value is 3.
 502 */
 503 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 504              "Select Fibre Channel class of service for FCP sequences");
 505
 506 /*
 507 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 508 # is [0,1]. Default value is 0.
 509 */
 510 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 511              "Use ADISC on rediscovery to authenticate FCP devices");
 512
 513 /*
 514 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 515 # range is [0,1]. Default value is 0.
 516 */
 517 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 518
 519 /*
 520 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 521 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 522 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 523 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 524 # cr_delay is set to 0.
 525 */
 526 LPFC_ATTR(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
 527                 "interrupt response is generated");
 528
 529 LPFC_ATTR(cr_count, 1, 1, 255, "A count of I/O completions after which an"
 530                 "interrupt response is generated");
 531
 532 /*
 533 # lpfc_fdmi_on: controls FDMI support.
 534 #       0 = no FDMI support
 535 #       1 = support FDMI without attribute of hostname
 536 #       2 = support FDMI with attribute of hostname
 537 # Value range [0,2]. Default value is 0.
 538 */
 539 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 540
 541 /*
 542 # Specifies the maximum number of ELS cmds we can have outstanding (for
 543 # discovery). Value range is [1,64]. Default value = 32.
 544 */
 545 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands"
 546                  "during discovery");
 547
 548 /*
 549 # lpfc_max_luns: maximum number of LUNs per target driver will support
 550 # Value range is [1,32768]. Default value is 256.
 551 # NOTE: The SCSI layer will scan each target for this many luns
 552 */
 553 LPFC_ATTR_R(max_luns, 256, 1, 32768,
 554              "Maximum number of LUNs per target driver will support");
 555
 556 struct class_device_attribute *lpfc_host_attrs[] = {
 557         &class_device_attr_info,
 558         &class_device_attr_serialnum,
 559         &class_device_attr_modeldesc,
 560         &class_device_attr_modelname,
 561         &class_device_attr_programtype,
 562         &class_device_attr_portnum,
 563         &class_device_attr_fwrev,
 564         &class_device_attr_hdw,
 565         &class_device_attr_option_rom_version,
 566         &class_device_attr_state,
 567         &class_device_attr_num_discovered_ports,
 568         &class_device_attr_lpfc_drvr_version,
 569         &class_device_attr_lpfc_log_verbose,
 570         &class_device_attr_lpfc_lun_queue_depth,
 571         &class_device_attr_lpfc_nodev_tmo,
 572         &class_device_attr_lpfc_fcp_class,
 573         &class_device_attr_lpfc_use_adisc,
 574         &class_device_attr_lpfc_ack0,
 575         &class_device_attr_lpfc_topology,
 576         &class_device_attr_lpfc_scan_down,
 577         &class_device_attr_lpfc_link_speed,
 578         &class_device_attr_lpfc_fdmi_on,
 579         &class_device_attr_lpfc_max_luns,
 580         &class_device_attr_nport_evt_cnt,
 581         &class_device_attr_management_version,
 582         &class_device_attr_board_online,
 583         NULL,
 584 };
 585
 586 static ssize_t
 587 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 588 {
 589         size_t buf_off;
 590         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 591                                              struct class_device, kobj));
 592         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 593
 594         if ((off + count) > FF_REG_AREA_SIZE)
 595                 return -ERANGE;
 596
 597         if (count == 0) return 0;
 598
 599         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 600                 return -EINVAL;
 601
 602         spin_lock_irq(phba->host->host_lock);
 603
 604         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 605                 spin_unlock_irq(phba->host->host_lock);
 606                 return -EPERM;
 607         }
 608
 609         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
 610                 writel(*((uint32_t *)(buf + buf_off)),
 611                        phba->ctrl_regs_memmap_p + off + buf_off);
 612
 613         spin_unlock_irq(phba->host->host_lock);
 614
 615         return count;
 616 }
 617
 618 static ssize_t
 619 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 620 {
 621         size_t buf_off;
 622         uint32_t * tmp_ptr;
 623         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 624                                              struct class_device, kobj));
 625         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 626
 627         if (off > FF_REG_AREA_SIZE)
 628                 return -ERANGE;
 629
 630         if ((off + count) > FF_REG_AREA_SIZE)
 631                 count = FF_REG_AREA_SIZE - off;
 632
 633         if (count == 0) return 0;
 634
 635         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 636                 return -EINVAL;
 637
 638         spin_lock_irq(phba->host->host_lock);
 639
 640         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
 641                 tmp_ptr = (uint32_t *)(buf + buf_off);
 642                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
 643         }
 644
 645         spin_unlock_irq(phba->host->host_lock);
 646
 647         return count;
 648 }
 649
 650 static struct bin_attribute sysfs_ctlreg_attr = {
 651         .attr = {
 652                 .name = "ctlreg",
 653                 .mode = S_IRUSR | S_IWUSR,
 654                 .owner = THIS_MODULE,
 655         },
 656         .size = 256,
 657         .read = sysfs_ctlreg_read,
 658         .write = sysfs_ctlreg_write,
 659 };
 660
 661
 662 static void
 663 sysfs_mbox_idle (struct lpfc_hba * phba)
 664 {
 665         phba->sysfs_mbox.state = SMBOX_IDLE;
 666         phba->sysfs_mbox.offset = 0;
 667
 668         if (phba->sysfs_mbox.mbox) {
 669                 mempool_free(phba->sysfs_mbox.mbox,
 670                              phba->mbox_mem_pool);
 671                 phba->sysfs_mbox.mbox = NULL;
 672         }
 673 }
 674
 675 static ssize_t
 676 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 677 {
 678         struct Scsi_Host * host =
 679                 class_to_shost(container_of(kobj, struct class_device, kobj));
 680         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
 681         struct lpfcMboxq * mbox = NULL;
 682
 683         if ((count + off) > MAILBOX_CMD_SIZE)
 684                 return -ERANGE;
 685
 686         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 687                 return -EINVAL;
 688
 689         if (count == 0)
 690                 return 0;
 691
 692         if (off == 0) {
 693                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 694                 if (!mbox)
 695                         return -ENOMEM;
 696
 697         }
 698
 699         spin_lock_irq(host->host_lock);
 700
 701         if (off == 0) {
 702                 if (phba->sysfs_mbox.mbox)
 703                         mempool_free(mbox, phba->mbox_mem_pool);
 704                 else
 705                         phba->sysfs_mbox.mbox = mbox;
 706                 phba->sysfs_mbox.state = SMBOX_WRITING;
 707         } else {
 708                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
 709                     phba->sysfs_mbox.offset != off           ||
 710                     phba->sysfs_mbox.mbox   == NULL ) {
 711                         sysfs_mbox_idle(phba);
 712                         spin_unlock_irq(host->host_lock);
 713                         return -EINVAL;
 714                 }
 715         }
 716
 717         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
 718                buf, count);
 719
 720         phba->sysfs_mbox.offset = off + count;
 721
 722         spin_unlock_irq(host->host_lock);
 723
 724         return count;
 725 }
 726
 727 static ssize_t
 728 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 729 {
 730         struct Scsi_Host *host =
 731                 class_to_shost(container_of(kobj, struct class_device,
 732                                             kobj));
 733         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 734         int rc;
 735
 736         if (off > sizeof(MAILBOX_t))
 737                 return -ERANGE;
 738
 739         if ((count + off) > sizeof(MAILBOX_t))
 740                 count = sizeof(MAILBOX_t) - off;
 741
 742         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 743                 return -EINVAL;
 744
 745         if (off && count == 0)
 746                 return 0;
 747
 748         spin_lock_irq(phba->host->host_lock);
 749
 750         if (off == 0 &&
 751             phba->sysfs_mbox.state  == SMBOX_WRITING &&
 752             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
 753
 754                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
 755                         /* Offline only */
 756                 case MBX_WRITE_NV:
 757                 case MBX_INIT_LINK:
 758                 case MBX_DOWN_LINK:
 759                 case MBX_CONFIG_LINK:
 760                 case MBX_CONFIG_RING:
 761                 case MBX_RESET_RING:
 762                 case MBX_UNREG_LOGIN:
 763                 case MBX_CLEAR_LA:
 764                 case MBX_DUMP_CONTEXT:
 765                 case MBX_RUN_DIAGS:
 766                 case MBX_RESTART:
 767                 case MBX_FLASH_WR_ULA:
 768                 case MBX_SET_MASK:
 769                 case MBX_SET_SLIM:
 770                 case MBX_SET_DEBUG:
 771                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 772                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
 773                                        "is illegal in on-line state\n",
 774                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
 775                                 sysfs_mbox_idle(phba);
 776                                 spin_unlock_irq(phba->host->host_lock);
 777                                 return -EPERM;
 778                         }
 779                 case MBX_LOAD_SM:
 780                 case MBX_READ_NV:
 781                 case MBX_READ_CONFIG:
 782                 case MBX_READ_RCONFIG:
 783                 case MBX_READ_STATUS:
 784                 case MBX_READ_XRI:
 785                 case MBX_READ_REV:
 786                 case MBX_READ_LNK_STAT:
 787                 case MBX_DUMP_MEMORY:
 788                 case MBX_DOWN_LOAD:
 789                 case MBX_UPDATE_CFG:
 790                 case MBX_LOAD_AREA:
 791                 case MBX_LOAD_EXP_ROM:
 792                         break;
 793                 case MBX_READ_SPARM64:
 794                 case MBX_READ_LA:
 795                 case MBX_READ_LA64:
 796                 case MBX_REG_LOGIN:
 797                 case MBX_REG_LOGIN64:
 798                 case MBX_CONFIG_PORT:
 799                 case MBX_RUN_BIU_DIAG:
 800                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
 801                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 802                         sysfs_mbox_idle(phba);
 803                         spin_unlock_irq(phba->host->host_lock);
 804                         return -EPERM;
 805                 default:
 806                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
 807                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 808                         sysfs_mbox_idle(phba);
 809                         spin_unlock_irq(phba->host->host_lock);
 810                         return -EPERM;
 811                 }
 812
 813                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 814                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
 815
 816                         spin_unlock_irq(phba->host->host_lock);
 817                         rc = lpfc_sli_issue_mbox (phba,
 818                                                   phba->sysfs_mbox.mbox,
 819                                                   MBX_POLL);
 820                         spin_lock_irq(phba->host->host_lock);
 821
 822                 } else {
 823                         spin_unlock_irq(phba->host->host_lock);
 824                         rc = lpfc_sli_issue_mbox_wait (phba,
 825                                                        phba->sysfs_mbox.mbox,
 826                                                        phba->fc_ratov * 2);
 827                         spin_lock_irq(phba->host->host_lock);
 828                 }
 829
 830                 if (rc != MBX_SUCCESS) {
 831                         sysfs_mbox_idle(phba);
 832                         spin_unlock_irq(host->host_lock);
 833                         return -ENODEV;
 834                 }
 835                 phba->sysfs_mbox.state = SMBOX_READING;
 836         }
 837         else if (phba->sysfs_mbox.offset != off ||
 838                  phba->sysfs_mbox.state  != SMBOX_READING) {
 839                 printk(KERN_WARNING  "mbox_read: Bad State\n");
 840                 sysfs_mbox_idle(phba);
 841                 spin_unlock_irq(host->host_lock);
 842                 return -EINVAL;
 843         }
 844
 845         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
 846
 847         phba->sysfs_mbox.offset = off + count;
 848
 849         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
 850                 sysfs_mbox_idle(phba);
 851
 852         spin_unlock_irq(phba->host->host_lock);
 853
 854         return count;
 855 }
 856
 857 static struct bin_attribute sysfs_mbox_attr = {
 858         .attr = {
 859                 .name = "mbox",
 860                 .mode = S_IRUSR | S_IWUSR,
 861                 .owner = THIS_MODULE,
 862         },
 863         .size = sizeof(MAILBOX_t),
 864         .read = sysfs_mbox_read,
 865         .write = sysfs_mbox_write,
 866 };
 867
 868 int
 869 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
 870 {
 871         struct Scsi_Host *host = phba->host;
 872         int error;
 873
 874         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
 875                                                         &sysfs_ctlreg_attr);
 876         if (error)
 877                 goto out;
 878
 879         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
 880                                                         &sysfs_mbox_attr);
 881         if (error)
 882                 goto out_remove_ctlreg_attr;
 883
 884         return 0;
 885 out_remove_ctlreg_attr:
 886         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
 887 out:
 888         return error;
 889 }
 890
 891 void
 892 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
 893 {
 894         struct Scsi_Host *host = phba->host;
 895
 896         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
 897         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
 898 }
 899
 900
 901 /*
 902  * Dynamic FC Host Attributes Support
 903  */
 904
 905 static void
 906 lpfc_get_host_port_id(struct Scsi_Host *shost)
 907 {
 908         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 909         /* note: fc_myDID already in cpu endianness */
 910         fc_host_port_id(shost) = phba->fc_myDID;
 911 }
 912
 913 static void
 914 lpfc_get_host_port_type(struct Scsi_Host *shost)
 915 {
 916         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 917
 918         spin_lock_irq(shost->host_lock);
 919
 920         if (phba->hba_state == LPFC_HBA_READY) {
 921                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 922                         if (phba->fc_flag & FC_PUBLIC_LOOP)
 923                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
 924                         else
 925                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
 926                 } else {
 927                         if (phba->fc_flag & FC_FABRIC)
 928                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
 929                         else
 930                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
 931                 }
 932         } else
 933                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
 934
 935         spin_unlock_irq(shost->host_lock);
 936 }
 937
 938 static void
 939 lpfc_get_host_port_state(struct Scsi_Host *shost)
 940 {
 941         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 942
 943         spin_lock_irq(shost->host_lock);
 944
 945         if (phba->fc_flag & FC_OFFLINE_MODE)
 946                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
 947         else {
 948                 switch (phba->hba_state) {
 949                 case LPFC_INIT_START:
 950                 case LPFC_INIT_MBX_CMDS:
 951                 case LPFC_LINK_DOWN:
 952                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
 953                         break;
 954                 case LPFC_LINK_UP:
 955                 case LPFC_LOCAL_CFG_LINK:
 956                 case LPFC_FLOGI:
 957                 case LPFC_FABRIC_CFG_LINK:
 958                 case LPFC_NS_REG:
 959                 case LPFC_NS_QRY:
 960                 case LPFC_BUILD_DISC_LIST:
 961                 case LPFC_DISC_AUTH:
 962                 case LPFC_CLEAR_LA:
 963                 case LPFC_HBA_READY:
 964                         /* Links up, beyond this port_type reports state */
 965                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
 966                         break;
 967                 case LPFC_HBA_ERROR:
 968                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
 969                         break;
 970                 default:
 971                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
 972                         break;
 973                 }
 974         }
 975
 976         spin_unlock_irq(shost->host_lock);
 977 }
 978
 979 static void
 980 lpfc_get_host_speed(struct Scsi_Host *shost)
 981 {
 982         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 983
 984         spin_lock_irq(shost->host_lock);
 985
 986         if (phba->hba_state == LPFC_HBA_READY) {
 987                 switch(phba->fc_linkspeed) {
 988                         case LA_1GHZ_LINK:
 989                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
 990                         break;
 991                         case LA_2GHZ_LINK:
 992                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
 993                         break;
 994                         case LA_4GHZ_LINK:
 995                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
 996                         break;
 997                         default:
 998                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
 999                         break;
1000                 }
1001         }
1002
1003         spin_unlock_irq(shost->host_lock);
1004 }
1005
1006 static void
1007 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1008 {
1009         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
1010         u64 node_name;
1011
1012         spin_lock_irq(shost->host_lock);
1013
1014         if ((phba->fc_flag & FC_FABRIC) ||
1015             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1016              (phba->fc_flag & FC_PUBLIC_LOOP)))
1017                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1018         else
1019                 /* fabric is local port if there is no F/FL_Port */
1020                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1021
1022         spin_unlock_irq(shost->host_lock);
1023
1024         fc_host_fabric_name(shost) = node_name;
1025 }
1026
1027
1028 static struct fc_host_statistics *
1029 lpfc_get_stats(struct Scsi_Host *shost)
1030 {
1031         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
1032         struct lpfc_sli *psli = &phba->sli;
1033         struct fc_host_statistics *hs = &phba->link_stats;
1034         LPFC_MBOXQ_t *pmboxq;
1035         MAILBOX_t *pmb;
1036         int rc = 0;
1037
1038         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1039         if (!pmboxq)
1040                 return NULL;
1041         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1042
1043         pmb = &pmboxq->mb;
1044         pmb->mbxCommand = MBX_READ_STATUS;
1045         pmb->mbxOwner = OWN_HOST;
1046         pmboxq->context1 = NULL;
1047
1048         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1049                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1050                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1051         else
1052                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1053
1054         if (rc != MBX_SUCCESS) {
1055                 if (rc == MBX_TIMEOUT)
1056                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1057                 else
1058                         mempool_free(pmboxq, phba->mbox_mem_pool);
1059                 return NULL;
1060         }
1061
1062         memset(hs, 0, sizeof (struct fc_host_statistics));
1063
1064         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1065         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1066         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1067         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1068
1069         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1070         pmb->mbxCommand = MBX_READ_LNK_STAT;
1071         pmb->mbxOwner = OWN_HOST;
1072         pmboxq->context1 = NULL;
1073
1074         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1075             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1076                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1077         else
1078                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1079
1080         if (rc != MBX_SUCCESS) {
1081                 if (rc == MBX_TIMEOUT)
1082                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1083                 else
1084                         mempool_free( pmboxq, phba->mbox_mem_pool);
1085                 return NULL;
1086         }
1087
1088         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1089         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1090         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1091         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1092         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1093         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1094         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1095
1096         if (phba->fc_topology == TOPOLOGY_LOOP) {
1097                 hs->lip_count = (phba->fc_eventTag >> 1);
1098                 hs->nos_count = -1;
1099         } else {
1100                 hs->lip_count = -1;
1101                 hs->nos_count = (phba->fc_eventTag >> 1);
1102         }
1103
1104         hs->dumped_frames = -1;
1105
1106 /* FIX ME */
1107         /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1108
1109         return hs;
1110 }
1111
1112
1113 /*
1114  * The LPFC driver treats linkdown handling as target loss events so there
1115  * are no sysfs handlers for link_down_tmo.
1116  */
1117 static void
1118 lpfc_get_starget_port_id(struct scsi_target *starget)
1119 {
1120         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1121         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1122         uint32_t did = -1;
1123         struct lpfc_nodelist *ndlp = NULL;
1124
1125         spin_lock_irq(shost->host_lock);
1126         /* Search the mapped list for this target ID */
1127         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1128                 if (starget->id == ndlp->nlp_sid) {
1129                         did = ndlp->nlp_DID;
1130                         break;
1131                 }
1132         }
1133         spin_unlock_irq(shost->host_lock);
1134
1135         fc_starget_port_id(starget) = did;
1136 }
1137
1138 static void
1139 lpfc_get_starget_node_name(struct scsi_target *starget)
1140 {
1141         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1142         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1143         u64 node_name = 0;
1144         struct lpfc_nodelist *ndlp = NULL;
1145
1146         spin_lock_irq(shost->host_lock);
1147         /* Search the mapped list for this target ID */
1148         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1149                 if (starget->id == ndlp->nlp_sid) {
1150                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1151                         break;
1152                 }
1153         }
1154         spin_unlock_irq(shost->host_lock);
1155
1156         fc_starget_node_name(starget) = node_name;
1157 }
1158
1159 static void
1160 lpfc_get_starget_port_name(struct scsi_target *starget)
1161 {
1162         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1163         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1164         u64 port_name = 0;
1165         struct lpfc_nodelist *ndlp = NULL;
1166
1167         spin_lock_irq(shost->host_lock);
1168         /* Search the mapped list for this target ID */
1169         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1170                 if (starget->id == ndlp->nlp_sid) {
1171                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1172                         break;
1173                 }
1174         }
1175         spin_unlock_irq(shost->host_lock);
1176
1177         fc_starget_port_name(starget) = port_name;
1178 }
1179
1180 static void
1181 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1182 {
1183         /*
1184          * Return the driver's global value for device loss timeout plus
1185          * five seconds to allow the driver's nodev timer to run.
1186          */
1187         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1188 }
1189
1190 static void
1191 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1192 {
1193         /*
1194          * The driver doesn't have a per-target timeout setting.  Set
1195          * this value globally. lpfc_nodev_tmo should be greater then 0.
1196          */
1197         if (timeout)
1198                 lpfc_nodev_tmo = timeout;
1199         else
1200                 lpfc_nodev_tmo = 1;
1201         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1202 }
1203
1204
1205 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1206 static ssize_t                                                          \
1207 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1208 {                                                                       \
1209         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1210         struct lpfc_rport_data *rdata = rport->hostdata;                \
1211         return snprintf(buf, sz, format_string,                         \
1212                 (rdata->target) ? cast rdata->target->field : 0);       \
1213 }
1214
1215 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1216         lpfc_rport_show_function(field, format_string, sz, )            \
1217 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1218
1219
1220 struct fc_function_template lpfc_transport_functions = {
1221         /* fixed attributes the driver supports */
1222         .show_host_node_name = 1,
1223         .show_host_port_name = 1,
1224         .show_host_supported_classes = 1,
1225         .show_host_supported_fc4s = 1,
1226         .show_host_symbolic_name = 1,
1227         .show_host_supported_speeds = 1,
1228         .show_host_maxframe_size = 1,
1229
1230         /* dynamic attributes the driver supports */
1231         .get_host_port_id = lpfc_get_host_port_id,
1232         .show_host_port_id = 1,
1233
1234         .get_host_port_type = lpfc_get_host_port_type,
1235         .show_host_port_type = 1,
1236
1237         .get_host_port_state = lpfc_get_host_port_state,
1238         .show_host_port_state = 1,
1239
1240         /* active_fc4s is shown but doesn't change (thus no get function) */
1241         .show_host_active_fc4s = 1,
1242
1243         .get_host_speed = lpfc_get_host_speed,
1244         .show_host_speed = 1,
1245
1246         .get_host_fabric_name = lpfc_get_host_fabric_name,
1247         .show_host_fabric_name = 1,
1248
1249         /*
1250          * The LPFC driver treats linkdown handling as target loss events
1251          * so there are no sysfs handlers for link_down_tmo.
1252          */
1253
1254         .get_fc_host_stats = lpfc_get_stats,
1255
1256         /* the LPFC driver doesn't support resetting stats yet */
1257
1258         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1259         .show_rport_maxframe_size = 1,
1260         .show_rport_supported_classes = 1,
1261
1262         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1263         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1264         .show_rport_dev_loss_tmo = 1,
1265
1266         .get_starget_port_id  = lpfc_get_starget_port_id,
1267         .show_starget_port_id = 1,
1268
1269         .get_starget_node_name = lpfc_get_starget_node_name,
1270         .show_starget_node_name = 1,
1271
1272         .get_starget_port_name = lpfc_get_starget_port_name,
1273         .show_starget_port_name = 1,
1274
1275         .issue_fc_host_lip = lpfc_issue_lip,
1276 };
1277
1278 void
1279 lpfc_get_cfgparam(struct lpfc_hba *phba)
1280 {
1281         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1282         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1283         lpfc_cr_count_init(phba, lpfc_cr_count);
1284         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1285         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1286         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1287         lpfc_ack0_init(phba, lpfc_ack0);
1288         lpfc_topology_init(phba, lpfc_topology);
1289         lpfc_scan_down_init(phba, lpfc_scan_down);
1290         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1291         lpfc_link_speed_init(phba, lpfc_link_speed);
1292         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1293         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1294         lpfc_max_luns_init(phba, lpfc_max_luns);
1295
1296         /*
1297          * The total number of segments is the configuration value plus 2
1298          * since the IOCB need a command and response bde.
1299          */
1300         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1301
1302         /*
1303          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1304          * used to create the sg_dma_buf_pool must be dynamically calculated
1305          */
1306         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1307                         sizeof(struct fcp_rsp) +
1308                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1309
1310         switch (phba->pcidev->device) {
1311         case PCI_DEVICE_ID_LP101:
1312         case PCI_DEVICE_ID_BSMB:
1313         case PCI_DEVICE_ID_ZSMB:
1314                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1315                 break;
1316         case PCI_DEVICE_ID_RFLY:
1317         case PCI_DEVICE_ID_PFLY:
1318         case PCI_DEVICE_ID_BMID:
1319         case PCI_DEVICE_ID_ZMID:
1320         case PCI_DEVICE_ID_TFLY:
1321                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1322                 break;
1323         default:
1324                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1325         }
1326         return;
1327 }