summaryrefslogtreecommitdiff
path: root/drivers/scsi/lpfc/lpfc_attr.c
blob: 23a3338e9953ff1ee8cea02199ef01e431a0a687 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Enterprise Fibre Channel Host Bus Adapters.                     *
 * Refer to the README file included with this package for         *
 * driver version and adapter support.                             *
 * Copyright (C) 2004 Emulex Corporation.                          *
 * www.emulex.com                                                  *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of the GNU General Public License     *
 * as published by the Free Software Foundation; either version 2  *
 * of the License, or (at your option) any later version.          *
 *                                                                 *
 * This program is distributed in the hope that it will be useful, *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of  *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   *
 * GNU General Public License for more details, a copy of which    *
 * can be found in the file COPYING included with this package.    *
 *******************************************************************/

#include <linux/ctype.h>
#include <linux/pci.h>
#include <linux/interrupt.h>

#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>

#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_version.h"
#include "lpfc_compat.h"
#include "lpfc_crtn.h"


static void
lpfc_jedec_to_ascii(int incr, char hdw[])
{
	int i, j;
	for (i = 0; i < 8; i++) {
		j = (incr & 0xf);
		if (j <= 9)
			hdw[7 - i] = 0x30 +  j;
		 else
			hdw[7 - i] = 0x61 + j - 10;
		incr = (incr >> 4);
	}
	hdw[8] = 0;
	return;
}

static ssize_t
lpfc_drvr_version_show(struct class_device *cdev, char *buf)
{
	return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
}

static ssize_t
management_version_show(struct class_device *cdev, char *buf)
{
	return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
}

static ssize_t
lpfc_info_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
}

static ssize_t
lpfc_serialnum_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
}

static ssize_t
lpfc_modeldesc_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
}

static ssize_t
lpfc_modelname_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
}

static ssize_t
lpfc_programtype_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
}

static ssize_t
lpfc_portnum_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
}

static ssize_t
lpfc_fwrev_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	char fwrev[32];
	lpfc_decode_firmware_rev(phba, fwrev, 1);
	return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
}

static ssize_t
lpfc_hdw_show(struct class_device *cdev, char *buf)
{
	char hdw[9];
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	lpfc_vpd_t *vp = &phba->vpd;
	lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
	return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
}
static ssize_t
lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
}
static ssize_t
lpfc_state_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	int len = 0;
	switch (phba->hba_state) {
	case LPFC_INIT_START:
	case LPFC_INIT_MBX_CMDS:
	case LPFC_LINK_DOWN:
		len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
		break;
	case LPFC_LINK_UP:
	case LPFC_LOCAL_CFG_LINK:
		len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
		break;
	case LPFC_FLOGI:
	case LPFC_FABRIC_CFG_LINK:
	case LPFC_NS_REG:
	case LPFC_NS_QRY:
	case LPFC_BUILD_DISC_LIST:
	case LPFC_DISC_AUTH:
	case LPFC_CLEAR_LA:
		len += snprintf(buf + len, PAGE_SIZE-len,
				"Link Up - Discovery\n");
		break;
	case LPFC_HBA_READY:
		len += snprintf(buf + len, PAGE_SIZE-len,
				"Link Up - Ready:\n");
		if (phba->fc_topology == TOPOLOGY_LOOP) {
			if (phba->fc_flag & FC_PUBLIC_LOOP)
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Public Loop\n");
			else
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Private Loop\n");
		} else {
			if (phba->fc_flag & FC_FABRIC)
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Fabric\n");
			else
				len += snprintf(buf + len, PAGE_SIZE-len,
						"   Point-2-Point\n");
		}
	}
	return len;
}

static ssize_t
lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
							phba->fc_unmap_cnt);
}


static ssize_t
lpfc_issue_lip (struct class_device *cdev, const char *buf, size_t count)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0];
	int val = 0;
	LPFC_MBOXQ_t *pmboxq;
	int mbxstatus = MBXERR_ERROR;

	if ((sscanf(buf, "%d", &val) != 1) ||
	    (val != 1))
		return -EINVAL;

	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
	    (phba->hba_state != LPFC_HBA_READY))
		return -EPERM;

	pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);

	if (!pmboxq)
		return -ENOMEM;

	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
	lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (mbxstatus == MBX_TIMEOUT)
		pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
	else
		mempool_free( pmboxq, phba->mbox_mem_pool);

	if (mbxstatus == MBXERR_ERROR)
		return -EIO;

	return strlen(buf);
}

static ssize_t
lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
}

static ssize_t
lpfc_board_online_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];

	if (!phba) return 0;

	if (phba->fc_flag & FC_OFFLINE_MODE)
		return snprintf(buf, PAGE_SIZE, "0\n");
	else
		return snprintf(buf, PAGE_SIZE, "1\n");
}

static ssize_t
lpfc_board_online_store(struct class_device *cdev, const char *buf,
								size_t count)
{
	struct Scsi_Host *host = class_to_shost(cdev);
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	struct completion online_compl;
	int val=0, status=0;

	if (sscanf(buf, "%d", &val) != 1)
		return 0;

	init_completion(&online_compl);

	if (val)
		lpfc_workq_post_event(phba, &status, &online_compl,
							LPFC_EVT_ONLINE);
	else
		lpfc_workq_post_event(phba, &status, &online_compl,
							LPFC_EVT_OFFLINE);
	wait_for_completion(&online_compl);
	if (!status)
		return strlen(buf);
	else
		return 0;
}


#define lpfc_param_show(attr)	\
static ssize_t \
lpfc_##attr##_show(struct class_device *cdev, char *buf) \
{ \
	struct Scsi_Host *host = class_to_shost(cdev);\
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
	int val = 0;\
	if (phba){\
		val = phba->cfg_##attr;\
		return snprintf(buf, PAGE_SIZE, "%d\n",\
				phba->cfg_##attr);\
	}\
	return 0;\
}

#define lpfc_param_store(attr, minval, maxval)	\
static ssize_t \
lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
{ \
	struct Scsi_Host *host = class_to_shost(cdev);\
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
	int val = 0;\
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "0x%x", &val) != 1)\
		if (sscanf(buf, "%d", &val) != 1)\
			return -EINVAL;\
	if (phba){\
		if (val >= minval && val <= maxval) {\
			phba->cfg_##attr = val;\
			return strlen(buf);\
		}\
	}\
	return 0;\
}

#define LPFC_ATTR_R_NOINIT(name, desc) \
extern int lpfc_##name;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_store(name, minval, maxval)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
			 lpfc_##name##_show, lpfc_##name##_store)

static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
					lpfc_option_rom_version_show, NULL);
static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
					lpfc_num_discovered_ports_show, NULL);
static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
			 NULL);
static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
			 NULL);
static CLASS_DEVICE_ATTR(issue_lip, S_IWUSR, NULL, lpfc_issue_lip);
static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
			 lpfc_board_online_show, lpfc_board_online_store);


/*
# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
# deluged with LOTS of information.
# You can set a bit mask to record specific types of verbose messages:
#
# LOG_ELS                       0x1        ELS events
# LOG_DISCOVERY                 0x2        Link discovery events
# LOG_MBOX                      0x4        Mailbox events
# LOG_INIT                      0x8        Initialization events
# LOG_LINK_EVENT                0x10       Link events
# LOG_IP                        0x20       IP traffic history
# LOG_FCP                       0x40       FCP traffic history
# LOG_NODE                      0x80       Node table events
# LOG_MISC                      0x400      Miscellaneous events
# LOG_SLI                       0x800      SLI events
# LOG_CHK_COND                  0x1000     FCP Check condition flag
# LOG_LIBDFC                    0x2000     LIBDFC events
# LOG_ALL_MSG                   0xffff     LOG all messages
*/
LPFC_ATTR_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");

/*
# lun_queue_depth:  This parameter is used to limit the number of outstanding
# commands per FCP LUN. Value range is [1,128]. Default value is 30.
*/
LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
	    "Max number of FCP commands we can queue to a specific LUN");

/*
# Some disk devices have a "select ID" or "select Target" capability.
# From a protocol standpoint "select ID" usually means select the
# Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
# annex" which contains a table that maps a "select ID" (a number
# between 0 and 7F) to an ALPA.  By default, for compatibility with
# older drivers, the lpfc driver scans this table from low ALPA to high
# ALPA.
#
# Turning on the scan-down variable (on  = 1, off = 0) will
# cause the lpfc driver to use an inverted table, effectively
# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
#
# (Note: This "select ID" functionality is a LOOP ONLY characteristic
# and will not work across a fabric. Also this parameter will take
# effect only in the case when ALPA map is not available.)
*/
LPFC_ATTR_R(scan_down, 1, 0, 1,
	     "Start scanning for devices from highest ALPA to lowest");

/*
# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
# until the timer expires. Value range is [0,255]. Default value is 20.
# NOTE: this MUST be less then the SCSI Layer command timeout - 1.
*/
LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
	     "Seconds driver will hold I/O waiting for a device to come back");

/*
# lpfc_topology:  link topology for init link
#            0x0  = attempt loop mode then point-to-point
#            0x02 = attempt point-to-point mode only
#            0x04 = attempt loop mode only
#            0x06 = attempt point-to-point mode then loop
# Set point-to-point mode if you want to run as an N_Port.
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
# Default value is 0.
*/
LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");

/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
#       0  = auto select (default)
#       1  = 1 Gigabaud
#       2  = 2 Gigabaud
#       4  = 4 Gigabaud
# Value range is [0,4]. Default value is 0.
*/
LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");

/*
# lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
# Value range is [2,3]. Default value is 3.
*/
LPFC_ATTR_R(fcp_class, 3, 2, 3,
	     "Select Fibre Channel class of service for FCP sequences");

/*
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
# is [0,1]. Default value is 0.
*/
LPFC_ATTR_RW(use_adisc, 0, 0, 1,
	     "Use ADISC on rediscovery to authenticate FCP devices");

/*
# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
# range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");

/*
# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
# cr_delay (msec) or cr_count outstanding commands. cr_delay can take
# value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
# cr_delay is set to 0.
*/
static int lpfc_cr_delay = 0;
module_param(lpfc_cr_delay, int , 0);
MODULE_PARM_DESC(lpfc_cr_delay, "A count of milliseconds after which an "
		"interrupt response is generated");

static int lpfc_cr_count = 1;
module_param(lpfc_cr_count, int, 0);
MODULE_PARM_DESC(lpfc_cr_count, "A count of I/O completions after which an "
		"interrupt response is generated");

/*
# lpfc_fdmi_on: controls FDMI support.
#       0 = no FDMI support
#       1 = support FDMI without attribute of hostname
#       2 = support FDMI with attribute of hostname
# Value range [0,2]. Default value is 0.
*/
LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");

/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
# discovery). Value range is [1,64]. Default value = 32.
*/
static int lpfc_discovery_threads = 32;
module_param(lpfc_discovery_threads, int, 0);
MODULE_PARM_DESC(lpfc_discovery_threads, "Maximum number of ELS commands "
		 "during discovery");

/*
# lpfc_max_luns: maximum number of LUNs per target driver will support
# Value range is [1,32768]. Default value is 256.
# NOTE: The SCSI layer will scan each target for this many luns
*/
LPFC_ATTR_R(max_luns, 256, 1, 32768,
	     "Maximum number of LUNs per target driver will support");

struct class_device_attribute *lpfc_host_attrs[] = {
	&class_device_attr_info,
	&class_device_attr_serialnum,
	&class_device_attr_modeldesc,
	&class_device_attr_modelname,
	&class_device_attr_programtype,
	&class_device_attr_portnum,
	&class_device_attr_fwrev,
	&class_device_attr_hdw,
	&class_device_attr_option_rom_version,
	&class_device_attr_state,
	&class_device_attr_num_discovered_ports,
	&class_device_attr_lpfc_drvr_version,
	&class_device_attr_lpfc_log_verbose,
	&class_device_attr_lpfc_lun_queue_depth,
	&class_device_attr_lpfc_nodev_tmo,
	&class_device_attr_lpfc_fcp_class,
	&class_device_attr_lpfc_use_adisc,
	&class_device_attr_lpfc_ack0,
	&class_device_attr_lpfc_topology,
	&class_device_attr_lpfc_scan_down,
	&class_device_attr_lpfc_link_speed,
	&class_device_attr_lpfc_fdmi_on,
	&class_device_attr_lpfc_max_luns,
	&class_device_attr_nport_evt_cnt,
	&class_device_attr_management_version,
	&class_device_attr_issue_lip,
	&class_device_attr_board_online,
	NULL,
};

static ssize_t
sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
	size_t buf_off;
	struct Scsi_Host *host = class_to_shost(container_of(kobj,
					     struct class_device, kobj));
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];

	if ((off + count) > FF_REG_AREA_SIZE)
		return -ERANGE;

	if (count == 0) return 0;

	if (off % 4 || count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	spin_lock_irq(phba->host->host_lock);

	if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
		spin_unlock_irq(phba->host->host_lock);
		return -EPERM;
	}

	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
		writel(*((uint32_t *)(buf + buf_off)),
		       phba->ctrl_regs_memmap_p + off + buf_off);

	spin_unlock_irq(phba->host->host_lock);

	return count;
}

static ssize_t
sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
	size_t buf_off;
	uint32_t * tmp_ptr;
	struct Scsi_Host *host = class_to_shost(container_of(kobj,
					     struct class_device, kobj));
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];

	if (off > FF_REG_AREA_SIZE)
		return -ERANGE;

	if ((off + count) > FF_REG_AREA_SIZE)
		count = FF_REG_AREA_SIZE - off;

	if (count == 0) return 0;

	if (off % 4 || count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	spin_lock_irq(phba->host->host_lock);

	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
		tmp_ptr = (uint32_t *)(buf + buf_off);
		*tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
	}

	spin_unlock_irq(phba->host->host_lock);

	return count;
}

static struct bin_attribute sysfs_ctlreg_attr = {
	.attr = {
		.name = "ctlreg",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = 256,
	.read = sysfs_ctlreg_read,
	.write = sysfs_ctlreg_write,
};


static void
sysfs_mbox_idle (struct lpfc_hba * phba)
{
	phba->sysfs_mbox.state = SMBOX_IDLE;
	phba->sysfs_mbox.offset = 0;

	if (phba->sysfs_mbox.mbox) {
		mempool_free(phba->sysfs_mbox.mbox,
			     phba->mbox_mem_pool);
		phba->sysfs_mbox.mbox = NULL;
	}
}

static ssize_t
sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
	struct Scsi_Host * host =
		class_to_shost(container_of(kobj, struct class_device, kobj));
	struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
	struct lpfcMboxq * mbox = NULL;

	if ((count + off) > MAILBOX_CMD_SIZE)
		return -ERANGE;

	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (count == 0)
		return 0;

	if (off == 0) {
		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
		if (!mbox)
			return -ENOMEM;

	}

	spin_lock_irq(host->host_lock);

	if (off == 0) {
		if (phba->sysfs_mbox.mbox)
			mempool_free(mbox, phba->mbox_mem_pool);
		else
			phba->sysfs_mbox.mbox = mbox;
		phba->sysfs_mbox.state = SMBOX_WRITING;
	} else {
		if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
		    phba->sysfs_mbox.offset != off           ||
		    phba->sysfs_mbox.mbox   == NULL ) {
			sysfs_mbox_idle(phba);
			spin_unlock_irq(host->host_lock);
			return -EINVAL;
		}
	}

	memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
	       buf, count);

	phba->sysfs_mbox.offset = off + count;

	spin_unlock_irq(host->host_lock);

	return count;
}

static ssize_t
sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
	struct Scsi_Host *host =
		class_to_shost(container_of(kobj, struct class_device,
					    kobj));
	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
	int rc;

	if (off > sizeof(MAILBOX_t))
		return -ERANGE;

	if ((count + off) > sizeof(MAILBOX_t))
		count = sizeof(MAILBOX_t) - off;

	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (off && count == 0)
		return 0;

	spin_lock_irq(phba->host->host_lock);

	if (off == 0 &&
	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {

		switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
			/* Offline only */
		case MBX_WRITE_NV:
		case MBX_INIT_LINK:
		case MBX_DOWN_LINK:
		case MBX_CONFIG_LINK:
		case MBX_CONFIG_RING:
		case MBX_RESET_RING:
		case MBX_UNREG_LOGIN:
		case MBX_CLEAR_LA:
		case MBX_DUMP_CONTEXT:
		case MBX_RUN_DIAGS:
		case MBX_RESTART:
		case MBX_FLASH_WR_ULA:
		case MBX_SET_MASK:
		case MBX_SET_SLIM:
		case MBX_SET_DEBUG:
			if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
				printk(KERN_WARNING "mbox_read:Command 0x%x "
				       "is illegal in on-line state\n",
				       phba->sysfs_mbox.mbox->mb.mbxCommand);
				sysfs_mbox_idle(phba);
				spin_unlock_irq(phba->host->host_lock);
				return -EPERM;
			}
		case MBX_LOAD_SM:
		case MBX_READ_NV:
		case MBX_READ_CONFIG:
		case MBX_READ_RCONFIG:
		case MBX_READ_STATUS:
		case MBX_READ_XRI:
		case MBX_READ_REV:
		case MBX_READ_LNK_STAT:
		case MBX_DUMP_MEMORY:
		case MBX_DOWN_LOAD:
		case MBX_UPDATE_CFG:
		case MBX_LOAD_AREA:
		case MBX_LOAD_EXP_ROM:
			break;
		case MBX_READ_SPARM64:
		case MBX_READ_LA:
		case MBX_READ_LA64:
		case MBX_REG_LOGIN:
		case MBX_REG_LOGIN64:
		case MBX_CONFIG_PORT:
		case MBX_RUN_BIU_DIAG:
			printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
			       phba->sysfs_mbox.mbox->mb.mbxCommand);
			sysfs_mbox_idle(phba);
			spin_unlock_irq(phba->host->host_lock);
			return -EPERM;
		default:
			printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
			       phba->sysfs_mbox.mbox->mb.mbxCommand);
			sysfs_mbox_idle(phba);
			spin_unlock_irq(phba->host->host_lock);
			return -EPERM;
		}

		if ((phba->fc_flag & FC_OFFLINE_MODE) ||
		    (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){

			spin_unlock_irq(phba->host->host_lock);
			rc = lpfc_sli_issue_mbox (phba,
						  phba->sysfs_mbox.mbox,
						  MBX_POLL);
			spin_lock_irq(phba->host->host_lock);

		} else {
			spin_unlock_irq(phba->host->host_lock);
			rc = lpfc_sli_issue_mbox_wait (phba,
						       phba->sysfs_mbox.mbox,
						       phba->fc_ratov * 2);
			spin_lock_irq(phba->host->host_lock);
		}

		if (rc != MBX_SUCCESS) {
			sysfs_mbox_idle(phba);
			spin_unlock_irq(host->host_lock);
			return -ENODEV;
		}
		phba->sysfs_mbox.state = SMBOX_READING;
	}
	else if (phba->sysfs_mbox.offset != off ||
		 phba->sysfs_mbox.state  != SMBOX_READING) {
		printk(KERN_WARNING  "mbox_read: Bad State\n");
		sysfs_mbox_idle(phba);
		spin_unlock_irq(host->host_lock);
		return -EINVAL;
	}

	memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);

	phba->sysfs_mbox.offset = off + count;

	if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
		sysfs_mbox_idle(phba);

	spin_unlock_irq(phba->host->host_lock);

	return count;
}

static struct bin_attribute sysfs_mbox_attr = {
	.attr = {
		.name = "mbox",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = sizeof(MAILBOX_t),
	.read = sysfs_mbox_read,
	.write = sysfs_mbox_write,
};

int
lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
{
	struct Scsi_Host *host = phba->host;
	int error;

	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
							&sysfs_ctlreg_attr);
	if (error)
		goto out;

	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
							&sysfs_mbox_attr);
	if (error)
		goto out_remove_ctlreg_attr;

	return 0;
out_remove_ctlreg_attr:
	sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
out:
	return error;
}

void
lpfc_free_sysfs_attr(struct lpfc_hba *phba)
{
	struct Scsi_Host *host = phba->host;

	sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
	sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
}


/*
 * Dynamic FC Host Attributes Support
 */

static void
lpfc_get_host_port_id(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
	/* note: fc_myDID already in cpu endianness */
	fc_host_port_id(shost) = phba->fc_myDID;
}

static void
lpfc_get_host_port_type(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->hba_state == LPFC_HBA_READY) {
		if (phba->fc_topology == TOPOLOGY_LOOP) {
			if (phba->fc_flag & FC_PUBLIC_LOOP)
				fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
		} else {
			if (phba->fc_flag & FC_FABRIC)
				fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_PTP;
		}
	} else
		fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_port_state(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->fc_flag & FC_OFFLINE_MODE)
		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
	else {
		switch (phba->hba_state) {
		case LPFC_INIT_START:
		case LPFC_INIT_MBX_CMDS:
		case LPFC_LINK_DOWN:
			fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
			break;
		case LPFC_LINK_UP:
		case LPFC_LOCAL_CFG_LINK:
		case LPFC_FLOGI:
		case LPFC_FABRIC_CFG_LINK:
		case LPFC_NS_REG:
		case LPFC_NS_QRY:
		case LPFC_BUILD_DISC_LIST:
		case LPFC_DISC_AUTH:
		case LPFC_CLEAR_LA:
		case LPFC_HBA_READY:
			/* Links up, beyond this port_type reports state */
			fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
			break;
		case LPFC_HBA_ERROR:
			fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
			break;
		default:
			fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
			break;
		}
	}

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_speed(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->hba_state == LPFC_HBA_READY) {
		switch(phba->fc_linkspeed) {
			case LA_1GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
			break;
			case LA_2GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
			break;
			case LA_4GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
			break;
			default:
				fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
			break;
		}
	}

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
	u64 nodename;

	spin_lock_irq(shost->host_lock);

	if ((phba->fc_flag & FC_FABRIC) ||
	    ((phba->fc_topology == TOPOLOGY_LOOP) &&
	     (phba->fc_flag & FC_PUBLIC_LOOP)))
		memcpy(&nodename, &phba->fc_fabparam.nodeName, sizeof(u64));
	else
		/* fabric is local port if there is no F/FL_Port */
		memcpy(&nodename, &phba->fc_nodename, sizeof(u64));

	spin_unlock_irq(shost->host_lock);

	fc_host_fabric_name(shost) = be64_to_cpu(nodename);
}


static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
	struct lpfc_sli *psli = &phba->sli;
	struct fc_host_statistics *hs =
			(struct fc_host_statistics *)phba->link_stats;
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc=0;

	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return NULL;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

	pmb = &pmboxq->mb;
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
	    (!(psli->sli_flag & LPFC_SLI2_ACTIVE))){
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
	} else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
		if (pmboxq) {
			if (rc == MBX_TIMEOUT)
				pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
			else
				mempool_free( pmboxq, phba->mbox_mem_pool);
		}
		return NULL;
	}

	hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
	hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
	hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
	hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);

	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
	pmb->mbxCommand = MBX_READ_LNK_STAT;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
	    (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) {
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
	} else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
		if (pmboxq) {
			if (rc == MBX_TIMEOUT)
				pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
			else
				mempool_free( pmboxq, phba->mbox_mem_pool);
		}
		return NULL;
	}

	hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
	hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
	hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
	hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
	hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
	hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
	hs->error_frames = pmb->un.varRdLnk.crcCnt;

	if (phba->fc_topology == TOPOLOGY_LOOP) {
		hs->lip_count = (phba->fc_eventTag >> 1);
		hs->nos_count = -1;
	} else {
		hs->lip_count = -1;
		hs->nos_count = (phba->fc_eventTag >> 1);
	}

	hs->dumped_frames = -1;

/* FIX ME */
	/*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/

	return hs;
}


/*
 * The LPFC driver treats linkdown handling as target loss events so there
 * are no sysfs handlers for link_down_tmo.
 */
static void
lpfc_get_starget_port_id(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	uint32_t did = -1;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			did = ndlp->nlp_DID;
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_port_id(starget) = did;
}

static void
lpfc_get_starget_node_name(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	uint64_t node_name = 0;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			memcpy(&node_name, &ndlp->nlp_nodename,
						sizeof(struct lpfc_name));
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_node_name(starget) = be64_to_cpu(node_name);
}

static void
lpfc_get_starget_port_name(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	uint64_t port_name = 0;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			memcpy(&port_name, &ndlp->nlp_portname,
						sizeof(struct lpfc_name));
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_port_name(starget) = be64_to_cpu(port_name);
}

static void
lpfc_get_rport_loss_tmo(struct fc_rport *rport)
{
	/*
	 * Return the driver's global value for device loss timeout plus
	 * five seconds to allow the driver's nodev timer to run.
	 */
	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
}

static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	/*
	 * The driver doesn't have a per-target timeout setting.  Set
	 * this value globally. lpfc_nodev_tmo should be greater then 0.
	 */
	if (timeout)
		lpfc_nodev_tmo = timeout;
	else
		lpfc_nodev_tmo = 1;
	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
}


#define lpfc_rport_show_function(field, format_string, sz, cast)	\
static ssize_t								\
lpfc_show_rport_##field (struct class_device *cdev, char *buf)		\
{									\
	struct fc_rport *rport = transport_class_to_rport(cdev);	\
	struct lpfc_rport_data *rdata = rport->hostdata;		\
	return snprintf(buf, sz, format_string,				\
		(rdata->target) ? cast rdata->target->field : 0);	\
}

#define lpfc_rport_rd_attr(field, format_string, sz)			\
	lpfc_rport_show_function(field, format_string, sz, )		\
static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)


struct fc_function_template lpfc_transport_functions = {
	/* fixed attributes the driver supports */
	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,
	.show_host_supported_fc4s = 1,
	.show_host_symbolic_name = 1,
	.show_host_supported_speeds = 1,
	.show_host_maxframe_size = 1,

	/* dynamic attributes the driver supports */
	.get_host_port_id = lpfc_get_host_port_id,
	.show_host_port_id = 1,

	.get_host_port_type = lpfc_get_host_port_type,
	.show_host_port_type = 1,

	.get_host_port_state = lpfc_get_host_port_state,
	.show_host_port_state = 1,

	/* active_fc4s is shown but doesn't change (thus no get function) */
	.show_host_active_fc4s = 1,

	.get_host_speed = lpfc_get_host_speed,
	.show_host_speed = 1,

	.get_host_fabric_name = lpfc_get_host_fabric_name,
	.show_host_fabric_name = 1,

	/*
	 * The LPFC driver treats linkdown handling as target loss events
	 * so there are no sysfs handlers for link_down_tmo.
	 */

	.get_fc_host_stats = lpfc_get_stats,

	/* the LPFC driver doesn't support resetting stats yet */

	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
	.show_rport_maxframe_size = 1,
	.show_rport_supported_classes = 1,

	.get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

	.get_starget_port_id  = lpfc_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_starget_node_name = lpfc_get_starget_node_name,
	.show_starget_node_name = 1,

	.get_starget_port_name = lpfc_get_starget_port_name,
	.show_starget_port_name = 1,
};

void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
	phba->cfg_log_verbose = lpfc_log_verbose;
	phba->cfg_cr_delay = lpfc_cr_delay;
	phba->cfg_cr_count = lpfc_cr_count;
	phba->cfg_lun_queue_depth = lpfc_lun_queue_depth;
	phba->cfg_fcp_class = lpfc_fcp_class;
	phba->cfg_use_adisc = lpfc_use_adisc;
	phba->cfg_ack0 = lpfc_ack0;
	phba->cfg_topology = lpfc_topology;
	phba->cfg_scan_down = lpfc_scan_down;
	phba->cfg_nodev_tmo = lpfc_nodev_tmo;
	phba->cfg_link_speed = lpfc_link_speed;
	phba->cfg_fdmi_on = lpfc_fdmi_on;
	phba->cfg_discovery_threads = lpfc_discovery_threads;
	phba->cfg_max_luns = lpfc_max_luns;

	/*
	 * The total number of segments is the configuration value plus 2
	 * since the IOCB need a command and response bde.
	 */
	phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;

	/*
	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
	 * used to create the sg_dma_buf_pool must be dynamically calculated
	 */
	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) +
			(phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));

	switch (phba->pcidev->device) {
	case PCI_DEVICE_ID_LP101:
	case PCI_DEVICE_ID_BSMB:
	case PCI_DEVICE_ID_ZSMB:
		phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
		break;
	case PCI_DEVICE_ID_RFLY:
	case PCI_DEVICE_ID_PFLY:
	case PCI_DEVICE_ID_BMID:
	case PCI_DEVICE_ID_ZMID:
	case PCI_DEVICE_ID_TFLY:
		phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
		break;
	default:
		phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
	}
	return;
}