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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) 2004-2005 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_init(attr, default, minval, maxval)  \
 295 static int \
 296 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
 297 { \
 298         if (val >= minval && val <= maxval) {\
 299                 phba->cfg_##attr = val;\
 300                 return 0;\
 301         }\
 302         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 303                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
 304                         "allowed range is ["#minval", "#maxval"]\n", \
 305                         phba->brd_no, val); \
 306         phba->cfg_##attr = default;\
 307         return -EINVAL;\
 308 }
 309
 310 #define lpfc_param_set(attr, default, minval, maxval)   \
 311 static int \
 312 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
 313 { \
 314         if (val >= minval && val <= maxval) {\
 315                 phba->cfg_##attr = val;\
 316                 return 0;\
 317         }\
 318         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
 319                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
 320                         "allowed range is ["#minval", "#maxval"]\n", \
 321                         phba->brd_no, val); \
 322         return -EINVAL;\
 323 }
 324
 325 #define lpfc_param_store(attr)  \
 326 static ssize_t \
 327 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
 328 { \
 329         struct Scsi_Host *host = class_to_shost(cdev);\
 330         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
 331         int val=0;\
 332         if (sscanf(buf, "%d", &val) != 1)\
 333         return -EPERM;\
 334         if (lpfc_##attr##_set(phba, val) == 0) \
 335                 return strlen(buf);\
 336         else \
 337                 return -EINVAL;\
 338 }
 339
 340 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 341 static int lpfc_##name = defval;\
 342 module_param(lpfc_##name, int, 0);\
 343 MODULE_PARM_DESC(lpfc_##name, desc);\
 344 lpfc_param_init(name, defval, minval, maxval)
 345
 346 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 347 static int lpfc_##name = defval;\
 348 module_param(lpfc_##name, int, 0);\
 349 MODULE_PARM_DESC(lpfc_##name, desc);\
 350 lpfc_param_show(name)\
 351 lpfc_param_init(name, defval, minval, maxval)\
 352 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 353
 354 #define LPFC_ATTR_RW(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_show(name)\
 359 lpfc_param_init(name, defval, minval, maxval)\
 360 lpfc_param_set(name, defval, minval, maxval)\
 361 lpfc_param_store(name)\
 362 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 363                          lpfc_##name##_show, lpfc_##name##_store)
 364
 365 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
 366 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
 367 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
 368 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
 369 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
 370 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
 371 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
 372 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
 373 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
 374 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
 375                                         lpfc_option_rom_version_show, NULL);
 376 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 377                                         lpfc_num_discovered_ports_show, NULL);
 378 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
 379 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
 380                          NULL);
 381 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 382                          NULL);
 383 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
 384                          lpfc_board_online_show, lpfc_board_online_store);
 385
 386
 387 /*
 388 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 389 # deluged with LOTS of information.
 390 # You can set a bit mask to record specific types of verbose messages:
 391 #
 392 # LOG_ELS                       0x1        ELS events
 393 # LOG_DISCOVERY                 0x2        Link discovery events
 394 # LOG_MBOX                      0x4        Mailbox events
 395 # LOG_INIT                      0x8        Initialization events
 396 # LOG_LINK_EVENT                0x10       Link events
 397 # LOG_IP                        0x20       IP traffic history
 398 # LOG_FCP                       0x40       FCP traffic history
 399 # LOG_NODE                      0x80       Node table events
 400 # LOG_MISC                      0x400      Miscellaneous events
 401 # LOG_SLI                       0x800      SLI events
 402 # LOG_CHK_COND                  0x1000     FCP Check condition flag
 403 # LOG_LIBDFC                    0x2000     LIBDFC events
 404 # LOG_ALL_MSG                   0xffff     LOG all messages
 405 */
 406 LPFC_ATTR_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
 407
 408 /*
 409 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 410 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
 411 */
 412 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 413             "Max number of FCP commands we can queue to a specific LUN");
 414
 415 /*
 416 # Some disk devices have a "select ID" or "select Target" capability.
 417 # From a protocol standpoint "select ID" usually means select the
 418 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
 419 # annex" which contains a table that maps a "select ID" (a number
 420 # between 0 and 7F) to an ALPA.  By default, for compatibility with
 421 # older drivers, the lpfc driver scans this table from low ALPA to high
 422 # ALPA.
 423 #
 424 # Turning on the scan-down variable (on  = 1, off = 0) will
 425 # cause the lpfc driver to use an inverted table, effectively
 426 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
 427 #
 428 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
 429 # and will not work across a fabric. Also this parameter will take
 430 # effect only in the case when ALPA map is not available.)
 431 */
 432 LPFC_ATTR_R(scan_down, 1, 0, 1,
 433              "Start scanning for devices from highest ALPA to lowest");
 434
 435 /*
 436 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 437 # until the timer expires. Value range is [0,255]. Default value is 20.
 438 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
 439 */
 440 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
 441              "Seconds driver will hold I/O waiting for a device to come back");
 442
 443 /*
 444 # lpfc_topology:  link topology for init link
 445 #            0x0  = attempt loop mode then point-to-point
 446 #            0x02 = attempt point-to-point mode only
 447 #            0x04 = attempt loop mode only
 448 #            0x06 = attempt point-to-point mode then loop
 449 # Set point-to-point mode if you want to run as an N_Port.
 450 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 451 # Default value is 0.
 452 */
 453 LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
 454
 455 /*
 456 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 457 # connection.
 458 #       0  = auto select (default)
 459 #       1  = 1 Gigabaud
 460 #       2  = 2 Gigabaud
 461 #       4  = 4 Gigabaud
 462 # Value range is [0,4]. Default value is 0.
 463 */
 464 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
 465
 466 /*
 467 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
 468 # Value range is [2,3]. Default value is 3.
 469 */
 470 LPFC_ATTR_R(fcp_class, 3, 2, 3,
 471              "Select Fibre Channel class of service for FCP sequences");
 472
 473 /*
 474 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
 475 # is [0,1]. Default value is 0.
 476 */
 477 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
 478              "Use ADISC on rediscovery to authenticate FCP devices");
 479
 480 /*
 481 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
 482 # range is [0,1]. Default value is 0.
 483 */
 484 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 485
 486 /*
 487 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 488 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 489 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
 490 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 491 # cr_delay is set to 0.
 492 */
 493 LPFC_ATTR(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
 494                 "interrupt response is generated");
 495
 496 LPFC_ATTR(cr_count, 1, 1, 255, "A count of I/O completions after which an"
 497                 "interrupt response is generated");
 498
 499 /*
 500 # lpfc_fdmi_on: controls FDMI support.
 501 #       0 = no FDMI support
 502 #       1 = support FDMI without attribute of hostname
 503 #       2 = support FDMI with attribute of hostname
 504 # Value range [0,2]. Default value is 0.
 505 */
 506 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
 507
 508 /*
 509 # Specifies the maximum number of ELS cmds we can have outstanding (for
 510 # discovery). Value range is [1,64]. Default value = 32.
 511 */
 512 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands"
 513                  "during discovery");
 514
 515 /*
 516 # lpfc_max_luns: maximum number of LUNs per target driver will support
 517 # Value range is [1,32768]. Default value is 256.
 518 # NOTE: The SCSI layer will scan each target for this many luns
 519 */
 520 LPFC_ATTR_R(max_luns, 256, 1, 32768,
 521              "Maximum number of LUNs per target driver will support");
 522
 523 struct class_device_attribute *lpfc_host_attrs[] = {
 524         &class_device_attr_info,
 525         &class_device_attr_serialnum,
 526         &class_device_attr_modeldesc,
 527         &class_device_attr_modelname,
 528         &class_device_attr_programtype,
 529         &class_device_attr_portnum,
 530         &class_device_attr_fwrev,
 531         &class_device_attr_hdw,
 532         &class_device_attr_option_rom_version,
 533         &class_device_attr_state,
 534         &class_device_attr_num_discovered_ports,
 535         &class_device_attr_lpfc_drvr_version,
 536         &class_device_attr_lpfc_log_verbose,
 537         &class_device_attr_lpfc_lun_queue_depth,
 538         &class_device_attr_lpfc_nodev_tmo,
 539         &class_device_attr_lpfc_fcp_class,
 540         &class_device_attr_lpfc_use_adisc,
 541         &class_device_attr_lpfc_ack0,
 542         &class_device_attr_lpfc_topology,
 543         &class_device_attr_lpfc_scan_down,
 544         &class_device_attr_lpfc_link_speed,
 545         &class_device_attr_lpfc_fdmi_on,
 546         &class_device_attr_lpfc_max_luns,
 547         &class_device_attr_nport_evt_cnt,
 548         &class_device_attr_management_version,
 549         &class_device_attr_board_online,
 550         NULL,
 551 };
 552
 553 static ssize_t
 554 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 555 {
 556         size_t buf_off;
 557         struct Scsi_Host *host = class_to_shost(container_of(kobj,
 558                                              struct class_device, kobj));
 559         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 560
 561         if ((off + count) > FF_REG_AREA_SIZE)
 562                 return -ERANGE;
 563
 564         if (count == 0) return 0;
 565
 566         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 567                 return -EINVAL;
 568
 569         spin_lock_irq(phba->host->host_lock);
 570
 571         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 572                 spin_unlock_irq(phba->host->host_lock);
 573                 return -EPERM;
 574         }
 575
 576         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
 577                 writel(*((uint32_t *)(buf + buf_off)),
 578                        phba->ctrl_regs_memmap_p + off + buf_off);
 579
 580         spin_unlock_irq(phba->host->host_lock);
 581
 582         return count;
 583 }
 584
 585 static ssize_t
 586 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 587 {
 588         size_t buf_off;
 589         uint32_t * tmp_ptr;
 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 > FF_REG_AREA_SIZE)
 595                 return -ERANGE;
 596
 597         if ((off + count) > FF_REG_AREA_SIZE)
 598                 count = FF_REG_AREA_SIZE - off;
 599
 600         if (count == 0) return 0;
 601
 602         if (off % 4 || count % 4 || (unsigned long)buf % 4)
 603                 return -EINVAL;
 604
 605         spin_lock_irq(phba->host->host_lock);
 606
 607         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
 608                 tmp_ptr = (uint32_t *)(buf + buf_off);
 609                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
 610         }
 611
 612         spin_unlock_irq(phba->host->host_lock);
 613
 614         return count;
 615 }
 616
 617 static struct bin_attribute sysfs_ctlreg_attr = {
 618         .attr = {
 619                 .name = "ctlreg",
 620                 .mode = S_IRUSR | S_IWUSR,
 621                 .owner = THIS_MODULE,
 622         },
 623         .size = 256,
 624         .read = sysfs_ctlreg_read,
 625         .write = sysfs_ctlreg_write,
 626 };
 627
 628
 629 static void
 630 sysfs_mbox_idle (struct lpfc_hba * phba)
 631 {
 632         phba->sysfs_mbox.state = SMBOX_IDLE;
 633         phba->sysfs_mbox.offset = 0;
 634
 635         if (phba->sysfs_mbox.mbox) {
 636                 mempool_free(phba->sysfs_mbox.mbox,
 637                              phba->mbox_mem_pool);
 638                 phba->sysfs_mbox.mbox = NULL;
 639         }
 640 }
 641
 642 static ssize_t
 643 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 644 {
 645         struct Scsi_Host * host =
 646                 class_to_shost(container_of(kobj, struct class_device, kobj));
 647         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
 648         struct lpfcMboxq * mbox = NULL;
 649
 650         if ((count + off) > MAILBOX_CMD_SIZE)
 651                 return -ERANGE;
 652
 653         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 654                 return -EINVAL;
 655
 656         if (count == 0)
 657                 return 0;
 658
 659         if (off == 0) {
 660                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 661                 if (!mbox)
 662                         return -ENOMEM;
 663
 664         }
 665
 666         spin_lock_irq(host->host_lock);
 667
 668         if (off == 0) {
 669                 if (phba->sysfs_mbox.mbox)
 670                         mempool_free(mbox, phba->mbox_mem_pool);
 671                 else
 672                         phba->sysfs_mbox.mbox = mbox;
 673                 phba->sysfs_mbox.state = SMBOX_WRITING;
 674         } else {
 675                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
 676                     phba->sysfs_mbox.offset != off           ||
 677                     phba->sysfs_mbox.mbox   == NULL ) {
 678                         sysfs_mbox_idle(phba);
 679                         spin_unlock_irq(host->host_lock);
 680                         return -EINVAL;
 681                 }
 682         }
 683
 684         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
 685                buf, count);
 686
 687         phba->sysfs_mbox.offset = off + count;
 688
 689         spin_unlock_irq(host->host_lock);
 690
 691         return count;
 692 }
 693
 694 static ssize_t
 695 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 696 {
 697         struct Scsi_Host *host =
 698                 class_to_shost(container_of(kobj, struct class_device,
 699                                             kobj));
 700         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
 701         int rc;
 702
 703         if (off > sizeof(MAILBOX_t))
 704                 return -ERANGE;
 705
 706         if ((count + off) > sizeof(MAILBOX_t))
 707                 count = sizeof(MAILBOX_t) - off;
 708
 709         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
 710                 return -EINVAL;
 711
 712         if (off && count == 0)
 713                 return 0;
 714
 715         spin_lock_irq(phba->host->host_lock);
 716
 717         if (off == 0 &&
 718             phba->sysfs_mbox.state  == SMBOX_WRITING &&
 719             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
 720
 721                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
 722                         /* Offline only */
 723                 case MBX_WRITE_NV:
 724                 case MBX_INIT_LINK:
 725                 case MBX_DOWN_LINK:
 726                 case MBX_CONFIG_LINK:
 727                 case MBX_CONFIG_RING:
 728                 case MBX_RESET_RING:
 729                 case MBX_UNREG_LOGIN:
 730                 case MBX_CLEAR_LA:
 731                 case MBX_DUMP_CONTEXT:
 732                 case MBX_RUN_DIAGS:
 733                 case MBX_RESTART:
 734                 case MBX_FLASH_WR_ULA:
 735                 case MBX_SET_MASK:
 736                 case MBX_SET_SLIM:
 737                 case MBX_SET_DEBUG:
 738                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
 739                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
 740                                        "is illegal in on-line state\n",
 741                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
 742                                 sysfs_mbox_idle(phba);
 743                                 spin_unlock_irq(phba->host->host_lock);
 744                                 return -EPERM;
 745                         }
 746                 case MBX_LOAD_SM:
 747                 case MBX_READ_NV:
 748                 case MBX_READ_CONFIG:
 749                 case MBX_READ_RCONFIG:
 750                 case MBX_READ_STATUS:
 751                 case MBX_READ_XRI:
 752                 case MBX_READ_REV:
 753                 case MBX_READ_LNK_STAT:
 754                 case MBX_DUMP_MEMORY:
 755                 case MBX_DOWN_LOAD:
 756                 case MBX_UPDATE_CFG:
 757                 case MBX_LOAD_AREA:
 758                 case MBX_LOAD_EXP_ROM:
 759                         break;
 760                 case MBX_READ_SPARM64:
 761                 case MBX_READ_LA:
 762                 case MBX_READ_LA64:
 763                 case MBX_REG_LOGIN:
 764                 case MBX_REG_LOGIN64:
 765                 case MBX_CONFIG_PORT:
 766                 case MBX_RUN_BIU_DIAG:
 767                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
 768                                phba->sysfs_mbox.mbox->mb.mbxCommand);
 769                         sysfs_mbox_idle(phba);
 770                         spin_unlock_irq(phba->host->host_lock);
 771                         return -EPERM;
 772                 default:
 773                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\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
 780                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
 781                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
 782
 783                         spin_unlock_irq(phba->host->host_lock);
 784                         rc = lpfc_sli_issue_mbox (phba,
 785                                                   phba->sysfs_mbox.mbox,
 786                                                   MBX_POLL);
 787                         spin_lock_irq(phba->host->host_lock);
 788
 789                 } else {
 790                         spin_unlock_irq(phba->host->host_lock);
 791                         rc = lpfc_sli_issue_mbox_wait (phba,
 792                                                        phba->sysfs_mbox.mbox,
 793                                                        phba->fc_ratov * 2);
 794                         spin_lock_irq(phba->host->host_lock);
 795                 }
 796
 797                 if (rc != MBX_SUCCESS) {
 798                         sysfs_mbox_idle(phba);
 799                         spin_unlock_irq(host->host_lock);
 800                         return -ENODEV;
 801                 }
 802                 phba->sysfs_mbox.state = SMBOX_READING;
 803         }
 804         else if (phba->sysfs_mbox.offset != off ||
 805                  phba->sysfs_mbox.state  != SMBOX_READING) {
 806                 printk(KERN_WARNING  "mbox_read: Bad State\n");
 807                 sysfs_mbox_idle(phba);
 808                 spin_unlock_irq(host->host_lock);
 809                 return -EINVAL;
 810         }
 811
 812         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
 813
 814         phba->sysfs_mbox.offset = off + count;
 815
 816         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
 817                 sysfs_mbox_idle(phba);
 818
 819         spin_unlock_irq(phba->host->host_lock);
 820
 821         return count;
 822 }
 823
 824 static struct bin_attribute sysfs_mbox_attr = {
 825         .attr = {
 826                 .name = "mbox",
 827                 .mode = S_IRUSR | S_IWUSR,
 828                 .owner = THIS_MODULE,
 829         },
 830         .size = sizeof(MAILBOX_t),
 831         .read = sysfs_mbox_read,
 832         .write = sysfs_mbox_write,
 833 };
 834
 835 int
 836 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
 837 {
 838         struct Scsi_Host *host = phba->host;
 839         int error;
 840
 841         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
 842                                                         &sysfs_ctlreg_attr);
 843         if (error)
 844                 goto out;
 845
 846         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
 847                                                         &sysfs_mbox_attr);
 848         if (error)
 849                 goto out_remove_ctlreg_attr;
 850
 851         return 0;
 852 out_remove_ctlreg_attr:
 853         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
 854 out:
 855         return error;
 856 }
 857
 858 void
 859 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
 860 {
 861         struct Scsi_Host *host = phba->host;
 862
 863         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
 864         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
 865 }
 866
 867
 868 /*
 869  * Dynamic FC Host Attributes Support
 870  */
 871
 872 static void
 873 lpfc_get_host_port_id(struct Scsi_Host *shost)
 874 {
 875         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 876         /* note: fc_myDID already in cpu endianness */
 877         fc_host_port_id(shost) = phba->fc_myDID;
 878 }
 879
 880 static void
 881 lpfc_get_host_port_type(struct Scsi_Host *shost)
 882 {
 883         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 884
 885         spin_lock_irq(shost->host_lock);
 886
 887         if (phba->hba_state == LPFC_HBA_READY) {
 888                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 889                         if (phba->fc_flag & FC_PUBLIC_LOOP)
 890                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
 891                         else
 892                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
 893                 } else {
 894                         if (phba->fc_flag & FC_FABRIC)
 895                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
 896                         else
 897                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
 898                 }
 899         } else
 900                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
 901
 902         spin_unlock_irq(shost->host_lock);
 903 }
 904
 905 static void
 906 lpfc_get_host_port_state(struct Scsi_Host *shost)
 907 {
 908         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 909
 910         spin_lock_irq(shost->host_lock);
 911
 912         if (phba->fc_flag & FC_OFFLINE_MODE)
 913                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
 914         else {
 915                 switch (phba->hba_state) {
 916                 case LPFC_INIT_START:
 917                 case LPFC_INIT_MBX_CMDS:
 918                 case LPFC_LINK_DOWN:
 919                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
 920                         break;
 921                 case LPFC_LINK_UP:
 922                 case LPFC_LOCAL_CFG_LINK:
 923                 case LPFC_FLOGI:
 924                 case LPFC_FABRIC_CFG_LINK:
 925                 case LPFC_NS_REG:
 926                 case LPFC_NS_QRY:
 927                 case LPFC_BUILD_DISC_LIST:
 928                 case LPFC_DISC_AUTH:
 929                 case LPFC_CLEAR_LA:
 930                 case LPFC_HBA_READY:
 931                         /* Links up, beyond this port_type reports state */
 932                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
 933                         break;
 934                 case LPFC_HBA_ERROR:
 935                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
 936                         break;
 937                 default:
 938                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
 939                         break;
 940                 }
 941         }
 942
 943         spin_unlock_irq(shost->host_lock);
 944 }
 945
 946 static void
 947 lpfc_get_host_speed(struct Scsi_Host *shost)
 948 {
 949         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 950
 951         spin_lock_irq(shost->host_lock);
 952
 953         if (phba->hba_state == LPFC_HBA_READY) {
 954                 switch(phba->fc_linkspeed) {
 955                         case LA_1GHZ_LINK:
 956                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
 957                         break;
 958                         case LA_2GHZ_LINK:
 959                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
 960                         break;
 961                         case LA_4GHZ_LINK:
 962                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
 963                         break;
 964                         default:
 965                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
 966                         break;
 967                 }
 968         }
 969
 970         spin_unlock_irq(shost->host_lock);
 971 }
 972
 973 static void
 974 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
 975 {
 976         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
 977         u64 node_name;
 978
 979         spin_lock_irq(shost->host_lock);
 980
 981         if ((phba->fc_flag & FC_FABRIC) ||
 982             ((phba->fc_topology == TOPOLOGY_LOOP) &&
 983              (phba->fc_flag & FC_PUBLIC_LOOP)))
 984                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
 985         else
 986                 /* fabric is local port if there is no F/FL_Port */
 987                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
 988
 989         spin_unlock_irq(shost->host_lock);
 990
 991         fc_host_fabric_name(shost) = node_name;
 992 }
 993
 994
 995 static struct fc_host_statistics *
 996 lpfc_get_stats(struct Scsi_Host *shost)
 997 {
 998         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
 999         struct lpfc_sli *psli = &phba->sli;
1000         struct fc_host_statistics *hs = &phba->link_stats;
1001         LPFC_MBOXQ_t *pmboxq;
1002         MAILBOX_t *pmb;
1003         int rc = 0;
1004
1005         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1006         if (!pmboxq)
1007                 return NULL;
1008         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1009
1010         pmb = &pmboxq->mb;
1011         pmb->mbxCommand = MBX_READ_STATUS;
1012         pmb->mbxOwner = OWN_HOST;
1013         pmboxq->context1 = NULL;
1014
1015         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1016                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1017                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1018         else
1019                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1020
1021         if (rc != MBX_SUCCESS) {
1022                 if (rc == MBX_TIMEOUT)
1023                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1024                 else
1025                         mempool_free(pmboxq, phba->mbox_mem_pool);
1026                 return NULL;
1027         }
1028
1029         memset(hs, 0, sizeof (struct fc_host_statistics));
1030
1031         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1032         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1033         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1034         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1035
1036         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1037         pmb->mbxCommand = MBX_READ_LNK_STAT;
1038         pmb->mbxOwner = OWN_HOST;
1039         pmboxq->context1 = NULL;
1040
1041         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1042             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1043                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1044         else
1045                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1046
1047         if (rc != MBX_SUCCESS) {
1048                 if (rc == MBX_TIMEOUT)
1049                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1050                 else
1051                         mempool_free( pmboxq, phba->mbox_mem_pool);
1052                 return NULL;
1053         }
1054
1055         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1056         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1057         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1058         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1059         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1060         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1061         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1062
1063         if (phba->fc_topology == TOPOLOGY_LOOP) {
1064                 hs->lip_count = (phba->fc_eventTag >> 1);
1065                 hs->nos_count = -1;
1066         } else {
1067                 hs->lip_count = -1;
1068                 hs->nos_count = (phba->fc_eventTag >> 1);
1069         }
1070
1071         hs->dumped_frames = -1;
1072
1073 /* FIX ME */
1074         /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1075
1076         return hs;
1077 }
1078
1079
1080 /*
1081  * The LPFC driver treats linkdown handling as target loss events so there
1082  * are no sysfs handlers for link_down_tmo.
1083  */
1084 static void
1085 lpfc_get_starget_port_id(struct scsi_target *starget)
1086 {
1087         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1088         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1089         uint32_t did = -1;
1090         struct lpfc_nodelist *ndlp = NULL;
1091
1092         spin_lock_irq(shost->host_lock);
1093         /* Search the mapped list for this target ID */
1094         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1095                 if (starget->id == ndlp->nlp_sid) {
1096                         did = ndlp->nlp_DID;
1097                         break;
1098                 }
1099         }
1100         spin_unlock_irq(shost->host_lock);
1101
1102         fc_starget_port_id(starget) = did;
1103 }
1104
1105 static void
1106 lpfc_get_starget_node_name(struct scsi_target *starget)
1107 {
1108         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1109         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1110         u64 node_name = 0;
1111         struct lpfc_nodelist *ndlp = NULL;
1112
1113         spin_lock_irq(shost->host_lock);
1114         /* Search the mapped list for this target ID */
1115         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1116                 if (starget->id == ndlp->nlp_sid) {
1117                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1118                         break;
1119                 }
1120         }
1121         spin_unlock_irq(shost->host_lock);
1122
1123         fc_starget_node_name(starget) = node_name;
1124 }
1125
1126 static void
1127 lpfc_get_starget_port_name(struct scsi_target *starget)
1128 {
1129         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1130         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1131         u64 port_name = 0;
1132         struct lpfc_nodelist *ndlp = NULL;
1133
1134         spin_lock_irq(shost->host_lock);
1135         /* Search the mapped list for this target ID */
1136         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1137                 if (starget->id == ndlp->nlp_sid) {
1138                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1139                         break;
1140                 }
1141         }
1142         spin_unlock_irq(shost->host_lock);
1143
1144         fc_starget_port_name(starget) = port_name;
1145 }
1146
1147 static void
1148 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1149 {
1150         /*
1151          * Return the driver's global value for device loss timeout plus
1152          * five seconds to allow the driver's nodev timer to run.
1153          */
1154         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1155 }
1156
1157 static void
1158 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1159 {
1160         /*
1161          * The driver doesn't have a per-target timeout setting.  Set
1162          * this value globally. lpfc_nodev_tmo should be greater then 0.
1163          */
1164         if (timeout)
1165                 lpfc_nodev_tmo = timeout;
1166         else
1167                 lpfc_nodev_tmo = 1;
1168         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1169 }
1170
1171
1172 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1173 static ssize_t                                                          \
1174 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1175 {                                                                       \
1176         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1177         struct lpfc_rport_data *rdata = rport->hostdata;                \
1178         return snprintf(buf, sz, format_string,                         \
1179                 (rdata->target) ? cast rdata->target->field : 0);       \
1180 }
1181
1182 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1183         lpfc_rport_show_function(field, format_string, sz, )            \
1184 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1185
1186
1187 struct fc_function_template lpfc_transport_functions = {
1188         /* fixed attributes the driver supports */
1189         .show_host_node_name = 1,
1190         .show_host_port_name = 1,
1191         .show_host_supported_classes = 1,
1192         .show_host_supported_fc4s = 1,
1193         .show_host_symbolic_name = 1,
1194         .show_host_supported_speeds = 1,
1195         .show_host_maxframe_size = 1,
1196
1197         /* dynamic attributes the driver supports */
1198         .get_host_port_id = lpfc_get_host_port_id,
1199         .show_host_port_id = 1,
1200
1201         .get_host_port_type = lpfc_get_host_port_type,
1202         .show_host_port_type = 1,
1203
1204         .get_host_port_state = lpfc_get_host_port_state,
1205         .show_host_port_state = 1,
1206
1207         /* active_fc4s is shown but doesn't change (thus no get function) */
1208         .show_host_active_fc4s = 1,
1209
1210         .get_host_speed = lpfc_get_host_speed,
1211         .show_host_speed = 1,
1212
1213         .get_host_fabric_name = lpfc_get_host_fabric_name,
1214         .show_host_fabric_name = 1,
1215
1216         /*
1217          * The LPFC driver treats linkdown handling as target loss events
1218          * so there are no sysfs handlers for link_down_tmo.
1219          */
1220
1221         .get_fc_host_stats = lpfc_get_stats,
1222
1223         /* the LPFC driver doesn't support resetting stats yet */
1224
1225         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1226         .show_rport_maxframe_size = 1,
1227         .show_rport_supported_classes = 1,
1228
1229         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1230         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1231         .show_rport_dev_loss_tmo = 1,
1232
1233         .get_starget_port_id  = lpfc_get_starget_port_id,
1234         .show_starget_port_id = 1,
1235
1236         .get_starget_node_name = lpfc_get_starget_node_name,
1237         .show_starget_node_name = 1,
1238
1239         .get_starget_port_name = lpfc_get_starget_port_name,
1240         .show_starget_port_name = 1,
1241
1242         .issue_fc_host_lip = lpfc_issue_lip,
1243 };
1244
1245 void
1246 lpfc_get_cfgparam(struct lpfc_hba *phba)
1247 {
1248         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1249         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1250         lpfc_cr_count_init(phba, lpfc_cr_count);
1251         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1252         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1253         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1254         lpfc_ack0_init(phba, lpfc_ack0);
1255         lpfc_topology_init(phba, lpfc_topology);
1256         lpfc_scan_down_init(phba, lpfc_scan_down);
1257         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1258         lpfc_link_speed_init(phba, lpfc_link_speed);
1259         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1260         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1261         lpfc_max_luns_init(phba, lpfc_max_luns);
1262
1263         /*
1264          * The total number of segments is the configuration value plus 2
1265          * since the IOCB need a command and response bde.
1266          */
1267         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1268
1269         /*
1270          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1271          * used to create the sg_dma_buf_pool must be dynamically calculated
1272          */
1273         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1274                         sizeof(struct fcp_rsp) +
1275                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1276
1277         switch (phba->pcidev->device) {
1278         case PCI_DEVICE_ID_LP101:
1279         case PCI_DEVICE_ID_BSMB:
1280         case PCI_DEVICE_ID_ZSMB:
1281                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1282                 break;
1283         case PCI_DEVICE_ID_RFLY:
1284         case PCI_DEVICE_ID_PFLY:
1285         case PCI_DEVICE_ID_BMID:
1286         case PCI_DEVICE_ID_ZMID:
1287         case PCI_DEVICE_ID_TFLY:
1288                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1289                 break;
1290         default:
1291                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1292         }
1293         return;
1294 }