aboutsummaryrefslogtreecommitdiff
path: root/sys/dev/smartpqi/smartpqi_discovery.c
blob: 69e936bd9aab48d67192d61548ead240b2c0bb79 (plain) (blame)
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
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
/*-
 * Copyright (c) 2018 Microsemi Corporation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/* $FreeBSD$ */

#include "smartpqi_includes.h"

/* Validate the scsi sense response code */
static inline boolean_t pqisrc_scsi_sense_valid(const struct sense_header_scsi *sshdr)
{
	DBG_FUNC("IN\n");

	if (!sshdr)
		return false;

	DBG_FUNC("OUT\n");

	return (sshdr->response_code & 0x70) == 0x70;
}

/* Initialize target ID pool for HBA/PDs */
void  pqisrc_init_targetid_pool(pqisrc_softstate_t *softs)
{
	int i, tid = PQI_MAX_PHYSICALS + PQI_MAX_LOGICALS - 1;

	for(i = 0; i < PQI_MAX_PHYSICALS; i++) {
		softs->tid_pool.tid[i] = tid--;
	}
	softs->tid_pool.index = i - 1;
}

int pqisrc_alloc_tid(pqisrc_softstate_t *softs)
{
	if(softs->tid_pool.index <= -1) {
		DBG_ERR("Target ID exhausted\n");
		return INVALID_ELEM;
	}
	
	return  softs->tid_pool.tid[softs->tid_pool.index--];
}

void pqisrc_free_tid(pqisrc_softstate_t *softs, int tid)
{
	if(softs->tid_pool.index >= PQI_MAX_PHYSICALS) {
		DBG_ERR("Target ID queue is full\n");
		return;
	}
	
	softs->tid_pool.index++;
	softs->tid_pool.tid[softs->tid_pool.index] = tid;
}

/* Update scsi sense info to a local buffer*/
boolean_t pqisrc_update_scsi_sense(const uint8_t *buff, int len,
			      struct sense_header_scsi *header)
{

	DBG_FUNC("IN\n");

	if (!buff || !len)
		return false;

	memset(header, 0, sizeof(struct sense_header_scsi));

	header->response_code = (buff[0] & 0x7f);

	if (!pqisrc_scsi_sense_valid(header))
		return false;

	if (header->response_code >= 0x72) {
		/* descriptor format */
		if (len > 1)
			header->sense_key = (buff[1] & 0xf);
		if (len > 2)
			header->asc = buff[2];
		if (len > 3)
			header->ascq = buff[3];
		if (len > 7)
			header->additional_length = buff[7];
	} else {
		 /* fixed format */
		if (len > 2)
			header->sense_key = (buff[2] & 0xf);
		if (len > 7) {
			len = (len < (buff[7] + 8)) ?
					len : (buff[7] + 8);
			if (len > 12)
				header->asc = buff[12];
			if (len > 13)
				header->ascq = buff[13];
		}
	}

	DBG_FUNC("OUT\n");

	return true;
}

/*
 * Function used to build the internal raid request and analyze the response
 */
int pqisrc_build_send_raid_request(pqisrc_softstate_t *softs,  pqisrc_raid_req_t *request,
			    void *buff, size_t datasize, uint8_t cmd, uint16_t vpd_page, uint8_t *scsi3addr,
			    raid_path_error_info_elem_t *error_info)
{
	
	uint8_t *cdb;
	int ret = PQI_STATUS_SUCCESS;
	uint32_t tag = 0;
	struct dma_mem device_mem;
	sgt_t *sgd;

	ib_queue_t *ib_q = &softs->op_raid_ib_q[PQI_DEFAULT_IB_QUEUE];
	ob_queue_t *ob_q = &softs->op_ob_q[PQI_DEFAULT_IB_QUEUE];

	rcb_t *rcb = NULL;
	
	DBG_FUNC("IN\n");

	memset(&device_mem, 0, sizeof(struct dma_mem));

	/* for TUR datasize: 0 buff: NULL */
	if (datasize) {
		device_mem.tag = "device_mem";
		device_mem.size = datasize;
		device_mem.align = PQISRC_DEFAULT_DMA_ALIGN;

		ret = os_dma_mem_alloc(softs, &device_mem);
	
		if (ret) {
			DBG_ERR("failed to allocate dma memory for device_mem return code %d\n", ret);
			return ret;
		}

		sgd = (sgt_t *)&request->sg_descriptors[0];

		sgd->addr = device_mem.dma_addr;
		sgd->len = datasize;
		sgd->flags = SG_FLAG_LAST;

	}

	/* Build raid path request */
	request->header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST;

	request->header.iu_length = LE_16(offsetof(pqisrc_raid_req_t,
							sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH);
	request->buffer_length = LE_32(datasize);
	memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
	request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
	request->additional_cdb_bytes_usage = PQI_ADDITIONAL_CDB_BYTES_0;

	cdb = request->cdb;

	switch (cmd) {
	case SA_INQUIRY:
		request->data_direction = SOP_DATA_DIR_TO_DEVICE;
		cdb[0] = SA_INQUIRY;
		if (vpd_page & VPD_PAGE) {
			cdb[1] = 0x1;
			cdb[2] = (uint8_t)vpd_page;
		}
		cdb[4] = (uint8_t)datasize;
		break;
	case SA_REPORT_LOG:
	case SA_REPORT_PHYS:
		request->data_direction = SOP_DATA_DIR_TO_DEVICE;
		cdb[0] = cmd;
		if (cmd == SA_REPORT_PHYS)
			cdb[1] = SA_REPORT_PHYS_EXTENDED;
		else
		cdb[1] = SA_REPORT_LOG_EXTENDED;
		cdb[8] = (uint8_t)((datasize) >> 8);
		cdb[9] = (uint8_t)datasize;
		break;
	case TEST_UNIT_READY:
		request->data_direction = SOP_DATA_DIR_NONE;
		break;
	case SA_GET_RAID_MAP:
		request->data_direction = SOP_DATA_DIR_TO_DEVICE;
		cdb[0] = SA_CISS_READ;
		cdb[1] = cmd;
		cdb[8] = (uint8_t)((datasize) >> 8);
		cdb[9] = (uint8_t)datasize;
		break;
	case SA_CACHE_FLUSH:
		request->data_direction = SOP_DATA_DIR_FROM_DEVICE;
		memcpy(device_mem.virt_addr, buff, datasize);
		cdb[0] = BMIC_WRITE;
		cdb[6] = BMIC_CACHE_FLUSH;
		cdb[7] = (uint8_t)((datasize)  << 8);
		cdb[8] = (uint8_t)((datasize)  >> 8);
		break;
	case BMIC_IDENTIFY_CONTROLLER:
	case BMIC_IDENTIFY_PHYSICAL_DEVICE:
		request->data_direction = SOP_DATA_DIR_TO_DEVICE;
		cdb[0] = BMIC_READ;
		cdb[6] = cmd;
		cdb[7] = (uint8_t)((datasize)  << 8);
		cdb[8] = (uint8_t)((datasize)  >> 8);
		break;
	case BMIC_WRITE_HOST_WELLNESS:
		request->data_direction = SOP_DATA_DIR_FROM_DEVICE;
		memcpy(device_mem.virt_addr, buff, datasize);
		cdb[0] = BMIC_WRITE;
		cdb[6] = cmd;
		cdb[7] = (uint8_t)((datasize)  << 8);
		cdb[8] = (uint8_t)((datasize)  >> 8);
		break;
	case BMIC_SENSE_SUBSYSTEM_INFORMATION:
		request->data_direction = SOP_DATA_DIR_TO_DEVICE;
		cdb[0] = BMIC_READ;
		cdb[6] = cmd;
		cdb[7] = (uint8_t)((datasize)  << 8);
		cdb[8] = (uint8_t)((datasize)  >> 8);
		break;	
	default:
		DBG_ERR("unknown command 0x%x", cmd);
		break;
	}

	tag = pqisrc_get_tag(&softs->taglist);
	if (INVALID_ELEM == tag) {
		DBG_ERR("Tag not available\n");
		ret = PQI_STATUS_FAILURE;
		goto err_notag;
	}

	((pqisrc_raid_req_t *)request)->request_id = tag;
	((pqisrc_raid_req_t *)request)->error_index = ((pqisrc_raid_req_t *)request)->request_id;
	((pqisrc_raid_req_t *)request)->response_queue_id = ob_q->q_id;
	rcb = &softs->rcb[tag];
	rcb->success_cmp_callback = pqisrc_process_internal_raid_response_success;
	rcb->error_cmp_callback = pqisrc_process_internal_raid_response_error;

	rcb->req_pending = true;
	rcb->tag = tag;
	/* Submit Command */
	ret = pqisrc_submit_cmnd(softs, ib_q, request);

	if (ret != PQI_STATUS_SUCCESS) {
		DBG_ERR("Unable to submit command\n");
		goto err_out;
	}

	ret = pqisrc_wait_on_condition(softs, rcb);
	if (ret != PQI_STATUS_SUCCESS) {
		DBG_ERR("Internal RAID request timed out: cmd : 0x%c\n", cmd);
		goto err_out;
	}

	if (datasize) {
		if (buff) {
			memcpy(buff, device_mem.virt_addr, datasize);
		}
		os_dma_mem_free(softs, &device_mem);
	}
	
	ret = rcb->status;
	if (ret) {
		if(error_info) {
			memcpy(error_info, 
			       rcb->error_info,
			       sizeof(*error_info));

			if (error_info->data_out_result ==
			    PQI_RAID_DATA_IN_OUT_UNDERFLOW) {
				ret = PQI_STATUS_SUCCESS;
			}
			else{
				DBG_DISC("Error!! Bus=%u Target=%u, Cmd=0x%x," 
					"Ret=%d\n", BMIC_GET_LEVEL_2_BUS(scsi3addr), 
					BMIC_GET_LEVEL_TWO_TARGET(scsi3addr), 
					cmd, ret);
				ret = PQI_STATUS_FAILURE;
			}
		}
	} else {
		if(error_info) {
			ret = PQI_STATUS_SUCCESS;
			memset(error_info, 0, sizeof(*error_info));
		}
	}

	os_reset_rcb(rcb);
	pqisrc_put_tag(&softs->taglist, ((pqisrc_raid_req_t *)request)->request_id);
	DBG_FUNC("OUT\n");
	return ret;

err_out:
	DBG_ERR("Error!! Bus=%u Target=%u, Cmd=0x%x, Ret=%d\n", 
		BMIC_GET_LEVEL_2_BUS(scsi3addr), BMIC_GET_LEVEL_TWO_TARGET(scsi3addr), 
		cmd, ret);
	os_reset_rcb(rcb);
	pqisrc_put_tag(&softs->taglist, ((pqisrc_raid_req_t *)request)->request_id);
err_notag:
	if (datasize)
		os_dma_mem_free(softs, &device_mem);
	DBG_FUNC("FAILED \n");
	return ret;
}

/* common function used to send report physical and logical luns cmnds*/
static int pqisrc_report_luns(pqisrc_softstate_t *softs, uint8_t cmd,
	void *buff, size_t buf_len)
{
	int ret;
	pqisrc_raid_req_t request;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));
	ret =  pqisrc_build_send_raid_request(softs, &request, buff, 
				buf_len, cmd, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);

	DBG_FUNC("OUT\n");

	return ret;
}

/* subroutine used to get physical and logical luns of the device */
static int pqisrc_get_physical_logical_luns(pqisrc_softstate_t *softs, uint8_t cmd,
		reportlun_data_ext_t **buff, size_t *data_length)
{
	int ret;
	size_t list_len;
	size_t data_len;
	size_t new_lun_list_length;
	reportlun_data_ext_t *lun_data;
	reportlun_header_t report_lun_header;

	DBG_FUNC("IN\n");

	ret = pqisrc_report_luns(softs, cmd, &report_lun_header,
		sizeof(report_lun_header));

	if (ret) {
		DBG_ERR("failed return code: %d\n", ret);
		return ret;
	}
	list_len = BE_32(report_lun_header.list_length);

retry:
	data_len = sizeof(reportlun_header_t) + list_len;
	*data_length = data_len;

	lun_data = os_mem_alloc(softs, data_len);

	if (!lun_data) {
		DBG_ERR("failed to allocate memory for lun_data\n");
		return PQI_STATUS_FAILURE;
	}
		
	if (list_len == 0) {
		DBG_DISC("list_len is 0\n");
		memcpy(lun_data, &report_lun_header, sizeof(report_lun_header));
		goto out;
	}

	ret = pqisrc_report_luns(softs, cmd, lun_data, data_len);

	if (ret) {
		DBG_ERR("error\n");
		goto error;
	}

	new_lun_list_length = BE_32(lun_data->header.list_length);

	if (new_lun_list_length > list_len) {
		list_len = new_lun_list_length;
		os_mem_free(softs, (void *)lun_data, data_len);
		goto retry;
	}

out:
	*buff = lun_data;
	DBG_FUNC("OUT\n");
	return 0;

error:
	os_mem_free(softs, (void *)lun_data, data_len);
	DBG_ERR("FAILED\n");
	return ret;
}

/*
 * Function used to get physical and logical device list
 */
static int pqisrc_get_phys_log_device_list(pqisrc_softstate_t *softs,
	reportlun_data_ext_t **physical_dev_list,
	reportlun_data_ext_t **logical_dev_list, 
	size_t *phys_data_length,
	size_t *log_data_length)
{
	int ret = PQI_STATUS_SUCCESS;
	size_t logical_list_length;
	size_t logdev_data_length;
	size_t data_length;
	reportlun_data_ext_t *local_logdev_list;
	reportlun_data_ext_t *logdev_data;
	reportlun_header_t report_lun_header;
	

	DBG_FUNC("IN\n");

	ret = pqisrc_get_physical_logical_luns(softs, SA_REPORT_PHYS, physical_dev_list, phys_data_length);
	if (ret) {
		DBG_ERR("report physical LUNs failed");
		return ret;
	}

	ret = pqisrc_get_physical_logical_luns(softs, SA_REPORT_LOG, logical_dev_list, log_data_length);
	if (ret) {
		DBG_ERR("report logical LUNs failed");
		return ret;
	}


	logdev_data = *logical_dev_list;

	if (logdev_data) {
		logical_list_length =
			BE_32(logdev_data->header.list_length);
	} else {
		memset(&report_lun_header, 0, sizeof(report_lun_header));
		logdev_data =
			(reportlun_data_ext_t *)&report_lun_header;
		logical_list_length = 0;
	}

	logdev_data_length = sizeof(reportlun_header_t) +
		logical_list_length;

	/* Adding LOGICAL device entry for controller */
	local_logdev_list = os_mem_alloc(softs,
					    logdev_data_length + sizeof(reportlun_ext_entry_t));
	if (!local_logdev_list) {
		data_length = *log_data_length;
		os_mem_free(softs, (char *)*logical_dev_list, data_length);
		*logical_dev_list = NULL;
		return PQI_STATUS_FAILURE;
	}

	memcpy(local_logdev_list, logdev_data, logdev_data_length);
	memset((uint8_t *)local_logdev_list + logdev_data_length, 0,
		sizeof(reportlun_ext_entry_t));
	local_logdev_list->header.list_length = BE_32(logical_list_length +
							sizeof(reportlun_ext_entry_t));
	data_length = *log_data_length;
	os_mem_free(softs, (char *)*logical_dev_list, data_length);
	*log_data_length = logdev_data_length + sizeof(reportlun_ext_entry_t);
	*logical_dev_list = local_logdev_list;

	DBG_FUNC("OUT\n");

	return ret;
}

/* Subroutine used to set Bus-Target-Lun for the requested device */
static inline void pqisrc_set_btl(pqi_scsi_dev_t *device,
	int bus, int target, int lun)
{
	DBG_FUNC("IN\n");

	device->bus = bus;
	device->target = target;
	device->lun = lun;

	DBG_FUNC("OUT\n");
}

inline boolean_t pqisrc_is_external_raid_device(pqi_scsi_dev_t *device)
{
	return device->is_external_raid_device;
}

static inline boolean_t pqisrc_is_external_raid_addr(uint8_t *scsi3addr)
{
	return scsi3addr[2] != 0;
}

/* Function used to assign Bus-Target-Lun for the requested device */
static void pqisrc_assign_btl(pqi_scsi_dev_t *device)
{
	uint8_t *scsi3addr;
	uint32_t lunid;
	uint32_t bus;
	uint32_t target;
	uint32_t lun;
	DBG_FUNC("IN\n");

	scsi3addr = device->scsi3addr;
	lunid = GET_LE32(scsi3addr);

	if (pqisrc_is_hba_lunid(scsi3addr)) {
		/* The specified device is the controller. */
		pqisrc_set_btl(device, PQI_HBA_BUS, PQI_CTLR_INDEX, lunid & 0x3fff);
		device->target_lun_valid = true;
		return;
	}

	if (pqisrc_is_logical_device(device)) {
		if (pqisrc_is_external_raid_device(device)) {
			DBG_DISC("External Raid Device!!!");
			bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
			target = (lunid >> 16) & 0x3fff;
			lun = lunid & 0xff;
		} else {
			bus = PQI_RAID_VOLUME_BUS;
			lun = 0;
			target = lunid & 0x3fff;
		}
		pqisrc_set_btl(device, bus, target, lun);
		device->target_lun_valid = true;
		return;
	}

	DBG_FUNC("OUT\n");
}

/* Build and send the internal INQUIRY command to particular device */
static int pqisrc_send_scsi_inquiry(pqisrc_softstate_t *softs,
	uint8_t *scsi3addr, uint16_t vpd_page, uint8_t *buff, int buf_len)
{
	int ret = PQI_STATUS_SUCCESS;
	pqisrc_raid_req_t request;
	raid_path_error_info_elem_t error_info;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));
	ret =  pqisrc_build_send_raid_request(softs, &request, buff, buf_len, 
								SA_INQUIRY, vpd_page, scsi3addr, &error_info);

	DBG_FUNC("OUT\n");
	return ret;
}

/* Function used to parse the sense information from response */
static void pqisrc_fetch_sense_info(const uint8_t *sense_data,
	unsigned sense_data_length, uint8_t *sense_key, uint8_t *asc, uint8_t *ascq)
{
	struct sense_header_scsi header;

	DBG_FUNC("IN\n");

	*sense_key = 0;
	*ascq = 0;
	*asc = 0;

	if (pqisrc_update_scsi_sense(sense_data, sense_data_length, &header)) {
		*sense_key = header.sense_key;
		*asc = header.asc;
		*ascq = header.ascq;
	}

	DBG_DISC("sense_key: %x asc: %x ascq: %x\n", *sense_key, *asc, *ascq);

	DBG_FUNC("OUT\n");
}

/* Function used to validate volume offline status */
static uint8_t pqisrc_get_volume_offline_status(pqisrc_softstate_t *softs,
	uint8_t *scsi3addr)
{
	int ret = PQI_STATUS_SUCCESS;
	uint8_t status = SA_LV_STATUS_VPD_UNSUPPORTED;
	uint8_t size;
	uint8_t *buff = NULL;

	DBG_FUNC("IN\n");
	
	buff = os_mem_alloc(softs, 64);
	if (!buff)
		return PQI_STATUS_FAILURE;

	/* Get the size of the VPD return buff. */
	ret = pqisrc_send_scsi_inquiry(softs, scsi3addr, VPD_PAGE | SA_VPD_LV_STATUS,
		buff, SCSI_VPD_HEADER_LENGTH);

	if (ret)
		goto out;

	size = buff[3];

	/* Now get the whole VPD buff. */
	ret = pqisrc_send_scsi_inquiry(softs, scsi3addr, VPD_PAGE | SA_VPD_LV_STATUS,
		buff, size + SCSI_VPD_HEADER_LENGTH);
	if (ret)
		goto out;

	status = buff[4];

out:
	os_mem_free(softs, (char *)buff, 64);
	DBG_FUNC("OUT\n");

	return status;
}


/* Determine offline status of a volume.  Returns appropriate SA_LV_* status.*/
static uint8_t pqisrc_get_dev_vol_status(pqisrc_softstate_t *softs,
	uint8_t *scsi3addr)
{
	int ret = PQI_STATUS_SUCCESS;
	uint8_t *sense_data;
	unsigned sense_data_len;
	uint8_t sense_key;
	uint8_t asc;
	uint8_t ascq;
	uint8_t off_status;
	uint8_t scsi_status;
	pqisrc_raid_req_t request;
	raid_path_error_info_elem_t error_info;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));	
	ret =  pqisrc_build_send_raid_request(softs, &request, NULL, 0, 
				TEST_UNIT_READY, 0, scsi3addr, &error_info);
	
	if (ret)
		goto error;
	sense_data = error_info.data;
	sense_data_len = LE_16(error_info.sense_data_len);

	if (sense_data_len > sizeof(error_info.data))
		sense_data_len = sizeof(error_info.data);

	pqisrc_fetch_sense_info(sense_data, sense_data_len, &sense_key, &asc,
		&ascq);

	scsi_status = error_info.status;

	/* scsi status: "CHECK CONDN" /  SK: "not ready" ? */
	if (scsi_status != 2 ||
	    sense_key != 2 ||
	    asc != ASC_LUN_NOT_READY) {
		return SA_LV_OK;
	}

	/* Determine the reason for not ready state. */
	off_status = pqisrc_get_volume_offline_status(softs, scsi3addr);

	DBG_DISC("offline_status 0x%x\n", off_status);

	/* Keep volume offline in certain cases. */
	switch (off_status) {
	case SA_LV_UNDERGOING_ERASE:
	case SA_LV_NOT_AVAILABLE:
	case SA_LV_UNDERGOING_RPI:
	case SA_LV_PENDING_RPI:
	case SA_LV_ENCRYPTED_NO_KEY:
	case SA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
	case SA_LV_UNDERGOING_ENCRYPTION:
	case SA_LV_UNDERGOING_ENCRYPTION_REKEYING:
	case SA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
		return off_status;
	case SA_LV_STATUS_VPD_UNSUPPORTED:
		/*
		 * If the VPD status page isn't available,
		 * use ASC/ASCQ to determine state.
		 */
		if (ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS ||
		    ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ)
			return off_status;
		break;
	}

	DBG_FUNC("OUT\n");

	return SA_LV_OK;

error:
	return SA_LV_STATUS_VPD_UNSUPPORTED;
}

/* Validate the RAID map parameters */
static int pqisrc_raid_map_validation(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device, pqisrc_raid_map_t *raid_map)
{
	char *error_msg;
	uint32_t raidmap_size;
	uint32_t r5or6_blocks_per_row;
	unsigned phys_dev_num;
	unsigned num_raidmap_entries;

	DBG_FUNC("IN\n");

	raidmap_size = LE_32(raid_map->structure_size);
	if (raidmap_size < offsetof(pqisrc_raid_map_t, dev_data)) {
		error_msg = "RAID map too small\n";
		goto error;
	}

	if (raidmap_size > sizeof(*raid_map)) {
		error_msg = "RAID map too large\n";
		goto error;
	}

	phys_dev_num = LE_16(raid_map->layout_map_count) *
		(LE_16(raid_map->data_disks_per_row) +
		LE_16(raid_map->metadata_disks_per_row));
	num_raidmap_entries = phys_dev_num *
		LE_16(raid_map->row_cnt);

	if (num_raidmap_entries > RAID_MAP_MAX_ENTRIES) {
		error_msg = "invalid number of map entries in RAID map\n";
		goto error;
	}

	if (device->raid_level == SA_RAID_1) {
		if (LE_16(raid_map->layout_map_count) != 2) {
			error_msg = "invalid RAID-1 map\n";
			goto error;
		}
	} else if (device->raid_level == SA_RAID_ADM) {
		if (LE_16(raid_map->layout_map_count) != 3) {
			error_msg = "invalid RAID-1(ADM) map\n";
			goto error;
		}
	} else if ((device->raid_level == SA_RAID_5 ||
		device->raid_level == SA_RAID_6) &&
		LE_16(raid_map->layout_map_count) > 1) {
		/* RAID 50/60 */
		r5or6_blocks_per_row =
			LE_16(raid_map->strip_size) *
			LE_16(raid_map->data_disks_per_row);
		if (r5or6_blocks_per_row == 0) {
			error_msg = "invalid RAID-5 or RAID-6 map\n";
			goto error;
		}
	}

	DBG_FUNC("OUT\n");

	return 0;

error:
	DBG_ERR("%s\n", error_msg);
	return PQI_STATUS_FAILURE;
}

/* Get device raidmap for the requested device */
static int pqisrc_get_device_raidmap(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	int ret = PQI_STATUS_SUCCESS;
	pqisrc_raid_req_t request;
	pqisrc_raid_map_t *raid_map;

	DBG_FUNC("IN\n");

	raid_map = os_mem_alloc(softs, sizeof(*raid_map));
	if (!raid_map)
		return PQI_STATUS_FAILURE;

	memset(&request, 0, sizeof(request));
	ret =  pqisrc_build_send_raid_request(softs, &request, raid_map, sizeof(*raid_map), 
			 		SA_GET_RAID_MAP, 0, device->scsi3addr, NULL);

	if (ret) {
		DBG_ERR("error in build send raid req ret=%d\n", ret);
		goto err_out;
	}

	ret = pqisrc_raid_map_validation(softs, device, raid_map);
	if (ret) {
		DBG_ERR("error in raid map validation ret=%d\n", ret);
		goto err_out;
	}

	device->raid_map = raid_map;
	DBG_FUNC("OUT\n");
	return 0;

err_out:
	os_mem_free(softs, (char*)raid_map, sizeof(*raid_map));
	DBG_FUNC("FAILED \n");
	return ret;
}

/* Get device ioaccel_status to validate the type of device */
static void pqisrc_get_dev_ioaccel_status(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	int ret = PQI_STATUS_SUCCESS;
	uint8_t *buff;
	uint8_t ioaccel_status;

	DBG_FUNC("IN\n");

	buff = os_mem_alloc(softs, 64);
	if (!buff)
		return;

	ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr,
					VPD_PAGE | SA_VPD_LV_IOACCEL_STATUS, buff, 64);
	if (ret) {
		DBG_ERR("error in send scsi inquiry ret=%d\n", ret);
		goto err_out;
	}
	
	ioaccel_status = buff[IOACCEL_STATUS_BYTE];
	device->offload_config =
		!!(ioaccel_status & OFFLOAD_CONFIGURED_BIT);

	if (device->offload_config) {
		device->offload_enabled_pending =
			!!(ioaccel_status & OFFLOAD_ENABLED_BIT);
		if (pqisrc_get_device_raidmap(softs, device))
			device->offload_enabled_pending = false;
	}
	
	DBG_DISC("offload_config: 0x%x offload_enabled_pending: 0x%x \n", 
			device->offload_config, device->offload_enabled_pending);

err_out:
	os_mem_free(softs, (char*)buff, 64);
	DBG_FUNC("OUT\n");
}

/* Get RAID level of requested device */
static void pqisrc_get_dev_raid_level(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	uint8_t raid_level;
	uint8_t *buff;

	DBG_FUNC("IN\n");

	raid_level = SA_RAID_UNKNOWN;

	buff = os_mem_alloc(softs, 64);
	if (buff) {
		int ret;
		ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr,
			VPD_PAGE | SA_VPD_LV_DEVICE_GEOMETRY, buff, 64);
		if (ret == 0) {
			raid_level = buff[8];
			if (raid_level > SA_RAID_MAX)
				raid_level = SA_RAID_UNKNOWN;
		}
		os_mem_free(softs, (char*)buff, 64);
	}

	device->raid_level = raid_level;
	DBG_DISC("RAID LEVEL: %x \n",  raid_level);
	DBG_FUNC("OUT\n");
}

/* Parse the inquiry response and determine the type of device */
static int pqisrc_get_dev_data(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	int ret = PQI_STATUS_SUCCESS;
	uint8_t *inq_buff;

	DBG_FUNC("IN\n");

	inq_buff = os_mem_alloc(softs, OBDR_TAPE_INQ_SIZE);
	if (!inq_buff)
		return PQI_STATUS_FAILURE;

	/* Send an inquiry to the device to see what it is. */
	ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr, 0, inq_buff,
		OBDR_TAPE_INQ_SIZE);
	if (ret)
		goto err_out;
	pqisrc_sanitize_inquiry_string(&inq_buff[8], 8);
	pqisrc_sanitize_inquiry_string(&inq_buff[16], 16);

	device->devtype = inq_buff[0] & 0x1f;
	memcpy(device->vendor, &inq_buff[8],
		sizeof(device->vendor));
	memcpy(device->model, &inq_buff[16],
		sizeof(device->model));
	DBG_DISC("DEV_TYPE: %x VENDOR: %s MODEL: %s\n",  device->devtype, device->vendor, device->model);

	if (pqisrc_is_logical_device(device) && device->devtype == DISK_DEVICE) {
		if (pqisrc_is_external_raid_device(device)) {
			device->raid_level = SA_RAID_UNKNOWN;
			device->volume_status = SA_LV_OK;
			device->volume_offline = false;
		} 
		else {
			pqisrc_get_dev_raid_level(softs, device);
			pqisrc_get_dev_ioaccel_status(softs, device);
			device->volume_status = pqisrc_get_dev_vol_status(softs,
						device->scsi3addr);
			device->volume_offline = device->volume_status != SA_LV_OK;
		}
	}

	/*
	 * Check if this is a One-Button-Disaster-Recovery device
	 * by looking for "$DR-10" at offset 43 in the inquiry data.
	 */
	device->is_obdr_device = (device->devtype == ROM_DEVICE &&
		memcmp(&inq_buff[OBDR_SIG_OFFSET], OBDR_TAPE_SIG,
			OBDR_SIG_LEN) == 0);
err_out:
	os_mem_free(softs, (char*)inq_buff, OBDR_TAPE_INQ_SIZE);

	DBG_FUNC("OUT\n");
	return ret;
}

/*
 * BMIC (Basic Management And Interface Commands) command
 * to get the controller identify params
 */
static int pqisrc_identify_ctrl(pqisrc_softstate_t *softs,
	bmic_ident_ctrl_t *buff)
{
	int ret = PQI_STATUS_SUCCESS;
	pqisrc_raid_req_t request;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));	
	ret =  pqisrc_build_send_raid_request(softs, &request, buff, sizeof(*buff), 
				BMIC_IDENTIFY_CONTROLLER, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
	DBG_FUNC("OUT\n");

	return ret;
}

/* Get the adapter FW version using BMIC_IDENTIFY_CONTROLLER */
int pqisrc_get_ctrl_fw_version(pqisrc_softstate_t *softs)
{
	int ret = PQI_STATUS_SUCCESS;
	bmic_ident_ctrl_t *identify_ctrl;

	DBG_FUNC("IN\n");

	identify_ctrl = os_mem_alloc(softs, sizeof(*identify_ctrl));
	if (!identify_ctrl) {
		DBG_ERR("failed to allocate memory for identify_ctrl\n");
		return PQI_STATUS_FAILURE;
	}

	memset(identify_ctrl, 0, sizeof(*identify_ctrl));

	ret = pqisrc_identify_ctrl(softs, identify_ctrl);
	if (ret)
		goto out;
     
	softs->fw_build_number = identify_ctrl->fw_build_number;
	memcpy(softs->fw_version, identify_ctrl->fw_version,
		sizeof(identify_ctrl->fw_version));
	softs->fw_version[sizeof(identify_ctrl->fw_version)] = '\0';
	snprintf(softs->fw_version +
		strlen(softs->fw_version),
		sizeof(softs->fw_version),
		"-%u", identify_ctrl->fw_build_number);
out:
	os_mem_free(softs, (char *)identify_ctrl, sizeof(*identify_ctrl));
	DBG_INIT("Firmware version: %s Firmware build number: %d\n", softs->fw_version, softs->fw_build_number);
	DBG_FUNC("OUT\n");
	return ret;
}

/* BMIC command to determine scsi device identify params */
static int pqisrc_identify_physical_disk(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device,
	bmic_ident_physdev_t *buff,
	int buf_len)
{
	int ret = PQI_STATUS_SUCCESS;
	uint16_t bmic_device_index;
	pqisrc_raid_req_t request;


	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));	
	bmic_device_index = BMIC_GET_DRIVE_NUMBER(device->scsi3addr);
	request.cdb[2] = (uint8_t)bmic_device_index;
	request.cdb[9] = (uint8_t)(bmic_device_index >> 8);

	ret =  pqisrc_build_send_raid_request(softs, &request, buff, buf_len, 
				BMIC_IDENTIFY_PHYSICAL_DEVICE, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
	DBG_FUNC("OUT\n");
	return ret;
}

/*
 * Function used to get the scsi device information using one of BMIC
 * BMIC_IDENTIFY_PHYSICAL_DEVICE
 */
static void pqisrc_get_physical_device_info(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device,
	bmic_ident_physdev_t *id_phys)
{
	int ret = PQI_STATUS_SUCCESS;

	DBG_FUNC("IN\n");
	memset(id_phys, 0, sizeof(*id_phys));

	ret= pqisrc_identify_physical_disk(softs, device,
		id_phys, sizeof(*id_phys));
	if (ret) {
		device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
		return;
	}

	device->queue_depth =
		LE_16(id_phys->current_queue_depth_limit);
	device->device_type = id_phys->device_type;
	device->active_path_index = id_phys->active_path_number;
	device->path_map = id_phys->redundant_path_present_map;
	memcpy(&device->box,
		&id_phys->alternate_paths_phys_box_on_port,
		sizeof(device->box));
	memcpy(&device->phys_connector,
		&id_phys->alternate_paths_phys_connector,
		sizeof(device->phys_connector));
	device->bay = id_phys->phys_bay_in_box;

	DBG_DISC("BMIC DEV_TYPE: %x QUEUE DEPTH: 0x%x \n",  device->device_type, device->queue_depth);
	DBG_FUNC("OUT\n");
}


/* Function used to find the entry of the device in a list */
static device_status_t pqisrc_scsi_find_entry(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device_to_find,
	pqi_scsi_dev_t **same_device)
{
	pqi_scsi_dev_t *device;
	int i,j;
	DBG_FUNC("IN\n");
	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			if (pqisrc_scsi3addr_equal(device_to_find->scsi3addr,
				device->scsi3addr)) {
				*same_device = device;
				if (pqisrc_device_equal(device_to_find, device)) {
					if (device_to_find->volume_offline)
						return DEVICE_CHANGED;
					return DEVICE_UNCHANGED;
				}
				return DEVICE_CHANGED;
			}
		}
	}
	DBG_FUNC("OUT\n");

	return DEVICE_NOT_FOUND;
}


/* Update the newly added devices as existed device */
static void pqisrc_exist_device_update(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device_exist,
	pqi_scsi_dev_t *new_device)
{
	DBG_FUNC("IN\n");
	device_exist->expose_device = new_device->expose_device;
	memcpy(device_exist->vendor, new_device->vendor,
		sizeof(device_exist->vendor));
	memcpy(device_exist->model, new_device->model,
		sizeof(device_exist->model));
	device_exist->is_physical_device = new_device->is_physical_device;
	device_exist->is_external_raid_device =
		new_device->is_external_raid_device;
	device_exist->sas_address = new_device->sas_address;
	device_exist->raid_level = new_device->raid_level;
	device_exist->queue_depth = new_device->queue_depth;
	device_exist->ioaccel_handle = new_device->ioaccel_handle;
	device_exist->volume_status = new_device->volume_status;
	device_exist->active_path_index = new_device->active_path_index;
	device_exist->path_map = new_device->path_map;
	device_exist->bay = new_device->bay;
	memcpy(device_exist->box, new_device->box,
		sizeof(device_exist->box));
	memcpy(device_exist->phys_connector, new_device->phys_connector,
		sizeof(device_exist->phys_connector));
	device_exist->offload_config = new_device->offload_config;
	device_exist->offload_enabled = false;
	device_exist->offload_enabled_pending =
		new_device->offload_enabled_pending;
	device_exist->offload_to_mirror = 0;
	if (device_exist->raid_map)
		os_mem_free(softs,
			    (char *)device_exist->raid_map,
			    sizeof(*device_exist->raid_map));
	device_exist->raid_map = new_device->raid_map;
	/* To prevent this from being freed later. */
	new_device->raid_map = NULL;
	DBG_FUNC("OUT\n");
}

/* Validate the ioaccel_handle for a newly added device */
static pqi_scsi_dev_t *pqisrc_identify_device_via_ioaccel(
	pqisrc_softstate_t *softs, uint32_t ioaccel_handle)
{
	pqi_scsi_dev_t *device;
	int i,j;
	DBG_FUNC("IN\n");	
	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			if (device->devtype != DISK_DEVICE)
				continue;
			if (pqisrc_is_logical_device(device))
				continue;
			if (device->ioaccel_handle == ioaccel_handle)
				return device;
		}
	}
	DBG_FUNC("OUT\n");

	return NULL;
}

/* Get the scsi device queue depth */
static void pqisrc_update_log_dev_qdepth(pqisrc_softstate_t *softs)
{
	unsigned i;
	unsigned phys_dev_num;
	unsigned num_raidmap_entries;
	unsigned queue_depth;
	pqisrc_raid_map_t *raid_map;
	pqi_scsi_dev_t *device;
	raidmap_data_t *dev_data;
	pqi_scsi_dev_t *phys_disk;
	unsigned j;
	unsigned k;

	DBG_FUNC("IN\n");

	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			if (device->devtype != DISK_DEVICE)
				continue;
			if (!pqisrc_is_logical_device(device))
				continue;
			if (pqisrc_is_external_raid_device(device))
				continue;
			device->queue_depth = PQI_LOGICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
			raid_map = device->raid_map;
			if (!raid_map)
				return;
			dev_data = raid_map->dev_data;
			phys_dev_num = LE_16(raid_map->layout_map_count) *
					(LE_16(raid_map->data_disks_per_row) +
					LE_16(raid_map->metadata_disks_per_row));
			num_raidmap_entries = phys_dev_num *
						LE_16(raid_map->row_cnt);

			queue_depth = 0;
			for (k = 0; k < num_raidmap_entries; k++) {
				phys_disk = pqisrc_identify_device_via_ioaccel(softs,
						dev_data[k].ioaccel_handle);

				if (!phys_disk) {
					DBG_WARN(
					"Failed to find physical disk handle for logical drive %016llx\n",
						(unsigned long long)BE_64(device->scsi3addr[0]));
					device->offload_enabled = false;
					device->offload_enabled_pending = false;
					if (raid_map)
						os_mem_free(softs, (char *)raid_map, sizeof(*raid_map));
					device->raid_map = NULL;
					return;
				}

				queue_depth += phys_disk->queue_depth;
			}

			device->queue_depth = queue_depth;
		} /* end inner loop */
	}/* end outer loop */
	DBG_FUNC("OUT\n");
}

/* Function used to add a scsi device to OS scsi subsystem */
static int pqisrc_add_device(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	DBG_FUNC("IN\n");
	DBG_WARN("vendor: %s model: %s bus:%d target:%d lun:%d is_physical_device:0x%x expose_device:0x%x volume_offline 0x%x volume_status 0x%x \n",
		device->vendor, device->model, device->bus, device->target, device->lun, device->is_physical_device, device->expose_device, device->volume_offline, device->volume_status);

	device->invalid = false;

	if(device->expose_device) {
		/* TBD: Call OS upper layer function to add the device entry */
		os_add_device(softs,device);
	}
	DBG_FUNC("OUT\n");
	return PQI_STATUS_SUCCESS;

}

/* Function used to remove a scsi device from OS scsi subsystem */
void pqisrc_remove_device(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	DBG_FUNC("IN\n");
	DBG_DISC("vendor: %s model: %s bus:%d target:%d lun:%d is_physical_device:0x%x expose_device:0x%x volume_offline 0x%x volume_status 0x%x \n",
		device->vendor, device->model, device->bus, device->target, device->lun, device->is_physical_device, device->expose_device, device->volume_offline, device->volume_status);

	/* TBD: Call OS upper layer function to remove the device entry */
	device->invalid = true;
	os_remove_device(softs,device);
	DBG_FUNC("OUT\n");
}


/*
 * When exposing new device to OS fails then adjst list according to the
 * mid scsi list
 */
static void pqisrc_adjust_list(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	DBG_FUNC("IN\n");

	if (!device) {
		DBG_ERR("softs = %p: device is NULL !!!\n", softs);
		return;
	}

	OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
	softs->device_list[device->target][device->lun] = NULL;
	OS_RELEASE_SPINLOCK(&softs->devlist_lock);
	pqisrc_device_mem_free(softs, device);

	DBG_FUNC("OUT\n");
}

/* Debug routine used to display the RAID volume status of the device */
static void pqisrc_display_volume_status(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *device)
{
	char *status;

	DBG_FUNC("IN\n");
	switch (device->volume_status) {
	case SA_LV_OK:
		status = "Volume is online.";
		break;
	case SA_LV_UNDERGOING_ERASE:
		status = "Volume is undergoing background erase process.";
		break;
	case SA_LV_NOT_AVAILABLE:
		status = "Volume is waiting for transforming volume.";
		break;
	case SA_LV_UNDERGOING_RPI:
		status = "Volume is undergoing rapid parity initialization process.";
		break;
	case SA_LV_PENDING_RPI:
		status = "Volume is queued for rapid parity initialization process.";
		break;
	case SA_LV_ENCRYPTED_NO_KEY:
		status = "Volume is encrypted and cannot be accessed because key is not present.";
		break;
	case SA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
		status = "Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.";
		break;
	case SA_LV_UNDERGOING_ENCRYPTION:
		status = "Volume is undergoing encryption process.";
		break;
	case SA_LV_UNDERGOING_ENCRYPTION_REKEYING:
		status = "Volume is undergoing encryption re-keying process.";
		break;
	case SA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
		status = "Volume is encrypted and cannot be accessed because controller does not have encryption enabled.";
		break;
	case SA_LV_PENDING_ENCRYPTION:
		status = "Volume is pending migration to encrypted state, but process has not started.";
		break;
	case SA_LV_PENDING_ENCRYPTION_REKEYING:
		status = "Volume is encrypted and is pending encryption rekeying.";
		break;
	case SA_LV_STATUS_VPD_UNSUPPORTED:
		status = "Volume status is not available through vital product data pages.";
		break;
	default:
		status = "Volume is in an unknown state.";
		break;
	}

	DBG_DISC("scsi BTL %d:%d:%d %s\n",
		device->bus, device->target, device->lun, status);
	DBG_FUNC("OUT\n");
}

void pqisrc_device_mem_free(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device)
{
	DBG_FUNC("IN\n");
	if (!device)
		return;
	if (device->raid_map) {
			os_mem_free(softs, (char *)device->raid_map, sizeof(pqisrc_raid_map_t));
	}
	os_mem_free(softs, (char *)device,sizeof(*device));
	DBG_FUNC("OUT\n");
	
}

/* OS should call this function to free the scsi device */
void pqisrc_free_device(pqisrc_softstate_t * softs,pqi_scsi_dev_t *device)
{

		OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
		if (!pqisrc_is_logical_device(device)) {
			pqisrc_free_tid(softs,device->target);
		}
		pqisrc_device_mem_free(softs, device);
		OS_RELEASE_SPINLOCK(&softs->devlist_lock);

}


/* Update the newly added devices to the device list */
static void pqisrc_update_device_list(pqisrc_softstate_t *softs,
	pqi_scsi_dev_t *new_device_list[], int num_new_devices)
{
	int ret;
	int i;
	device_status_t dev_status;
	pqi_scsi_dev_t *device;
	pqi_scsi_dev_t *same_device;
	pqi_scsi_dev_t **added = NULL;
	pqi_scsi_dev_t **removed = NULL;
	int nadded = 0, nremoved = 0;
	int j;
	int tid = 0;

	DBG_FUNC("IN\n");

	added = os_mem_alloc(softs, sizeof(*added) * PQI_MAX_DEVICES);
	removed = os_mem_alloc(softs, sizeof(*removed) * PQI_MAX_DEVICES);

	if (!added || !removed) {
		DBG_WARN("Out of memory \n");
		goto free_and_out;
	}
	
	OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
	
	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			device->device_gone = true;
		}
	}
	DBG_IO("Device list used an array\n");
	for (i = 0; i < num_new_devices; i++) {
		device = new_device_list[i];

		dev_status = pqisrc_scsi_find_entry(softs, device,
			&same_device);

		switch (dev_status) {
		case DEVICE_UNCHANGED:
			/* New Device present in existing device list  */
			device->new_device = false;
			same_device->device_gone = false;
			pqisrc_exist_device_update(softs, same_device, device);
			break;
		case DEVICE_NOT_FOUND:
			/* Device not found in existing list */
			device->new_device = true;
			break;
		case DEVICE_CHANGED:
			/* Actual device gone need to add device to list*/
			device->new_device = true;
			break;
		default:
			break;
		}
	}
	/* Process all devices that have gone away. */
	for(i = 0, nremoved = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			if (device->device_gone) {
				softs->device_list[device->target][device->lun] = NULL;
				removed[nremoved] = device;
				nremoved++;
			}
		}
	}

	/* Process all new devices. */
	for (i = 0, nadded = 0; i < num_new_devices; i++) {
		device = new_device_list[i];
		if (!device->new_device)
			continue;
		if (device->volume_offline)
			continue;
		
		/* physical device */
		if (!pqisrc_is_logical_device(device)) {
			tid = pqisrc_alloc_tid(softs);
			if(INVALID_ELEM != tid)
				pqisrc_set_btl(device, PQI_PHYSICAL_DEVICE_BUS, tid, 0);
		}

 		softs->device_list[device->target][device->lun] = device;
		DBG_DISC("Added device %p at B : %d T : %d L : %d\n",device,
			device->bus,device->target,device->lun);
		/* To prevent this entry from being freed later. */
		new_device_list[i] = NULL;
		added[nadded] = device;
		nadded++;
	}

	pqisrc_update_log_dev_qdepth(softs);
	
	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			device->offload_enabled = device->offload_enabled_pending;
		}
	}

	OS_RELEASE_SPINLOCK(&softs->devlist_lock);

	for(i = 0; i < nremoved; i++) {
		device = removed[i];
		if (device == NULL)
			continue;
		pqisrc_remove_device(softs, device);
		pqisrc_display_device_info(softs, "removed", device);
		
	}

	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if(softs->device_list[i][j] == NULL)
				continue;
			device = softs->device_list[i][j];
			/*
			* Notify the OS upper layer if the queue depth of any existing device has
			* changed.
			*/
			if (device->queue_depth !=
				device->advertised_queue_depth) {
				device->advertised_queue_depth = device->queue_depth;
				/* TBD: Call OS upper layer function to change device Q depth */
			}
		}
	}
	for(i = 0; i < nadded; i++) {
		device = added[i];
		if (device->expose_device) {
			ret = pqisrc_add_device(softs, device);
			if (ret) {
				DBG_WARN("scsi %d:%d:%d addition failed, device not added\n",
					device->bus, device->target,
					device->lun);
				pqisrc_adjust_list(softs, device);
				continue;
			}
		}

		pqisrc_display_device_info(softs, "added", device);
	}

	/* Process all volumes that are offline. */
	for (i = 0; i < num_new_devices; i++) {
		device = new_device_list[i];
		if (!device)
			continue;
		if (!device->new_device)
			continue;
		if (device->volume_offline) {
			pqisrc_display_volume_status(softs, device);
			pqisrc_display_device_info(softs, "offline", device);
		}
	}

free_and_out:
	if (added)
		os_mem_free(softs, (char *)added,
			    sizeof(*added) * PQI_MAX_DEVICES); 
	if (removed)
		os_mem_free(softs, (char *)removed,
			    sizeof(*removed) * PQI_MAX_DEVICES); 

	DBG_FUNC("OUT\n");
}

/*
 * Let the Adapter know about driver version using one of BMIC
 * BMIC_WRITE_HOST_WELLNESS
 */
int pqisrc_write_driver_version_to_host_wellness(pqisrc_softstate_t *softs)
{
	int rval = PQI_STATUS_SUCCESS;
	struct bmic_host_wellness_driver_version *host_wellness_driver_ver;
	size_t data_length;
	pqisrc_raid_req_t request;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));	
	data_length = sizeof(*host_wellness_driver_ver);

	host_wellness_driver_ver = os_mem_alloc(softs, data_length);
	if (!host_wellness_driver_ver) {
		DBG_ERR("failed to allocate memory for host wellness driver_version\n");
		return PQI_STATUS_FAILURE;
	}

	host_wellness_driver_ver->start_tag[0] = '<';
	host_wellness_driver_ver->start_tag[1] = 'H';
	host_wellness_driver_ver->start_tag[2] = 'W';
	host_wellness_driver_ver->start_tag[3] = '>';
	host_wellness_driver_ver->driver_version_tag[0] = 'D';
	host_wellness_driver_ver->driver_version_tag[1] = 'V';
	host_wellness_driver_ver->driver_version_length = LE_16(sizeof(host_wellness_driver_ver->driver_version));
	strncpy(host_wellness_driver_ver->driver_version, softs->os_name,
        sizeof(host_wellness_driver_ver->driver_version));
    if (strlen(softs->os_name) < sizeof(host_wellness_driver_ver->driver_version) ) {
        strncpy(host_wellness_driver_ver->driver_version + strlen(softs->os_name), PQISRC_DRIVER_VERSION,
			sizeof(host_wellness_driver_ver->driver_version) -  strlen(softs->os_name));
    } else {
        DBG_DISC("OS name length(%lu) is longer than buffer of driver_version\n",
            strlen(softs->os_name));
    }
	host_wellness_driver_ver->driver_version[sizeof(host_wellness_driver_ver->driver_version) - 1] = '\0';
	host_wellness_driver_ver->end_tag[0] = 'Z';
	host_wellness_driver_ver->end_tag[1] = 'Z';

	rval = pqisrc_build_send_raid_request(softs, &request, host_wellness_driver_ver,data_length,
					BMIC_WRITE_HOST_WELLNESS, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);

	os_mem_free(softs, (char *)host_wellness_driver_ver, data_length);
	
	DBG_FUNC("OUT");
	return rval;
}

/* 
 * Write current RTC time from host to the adapter using
 * BMIC_WRITE_HOST_WELLNESS
 */
int pqisrc_write_current_time_to_host_wellness(pqisrc_softstate_t *softs)
{
	int rval = PQI_STATUS_SUCCESS;
	struct bmic_host_wellness_time *host_wellness_time;
	size_t data_length;
	pqisrc_raid_req_t request;

	DBG_FUNC("IN\n");

	memset(&request, 0, sizeof(request));	
	data_length = sizeof(*host_wellness_time);

	host_wellness_time = os_mem_alloc(softs, data_length);
	if (!host_wellness_time) {
		DBG_ERR("failed to allocate memory for host wellness time structure\n");
		return PQI_STATUS_FAILURE;
	}

	host_wellness_time->start_tag[0] = '<';
	host_wellness_time->start_tag[1] = 'H';
	host_wellness_time->start_tag[2] = 'W';
	host_wellness_time->start_tag[3] = '>';
	host_wellness_time->time_tag[0] = 'T';
	host_wellness_time->time_tag[1] = 'D';
	host_wellness_time->time_length = LE_16(offsetof(struct bmic_host_wellness_time, time_length) - 
											offsetof(struct bmic_host_wellness_time, century));

	os_get_time(host_wellness_time);

	host_wellness_time->dont_write_tag[0] = 'D';
	host_wellness_time->dont_write_tag[1] = 'W';
	host_wellness_time->end_tag[0] = 'Z';
	host_wellness_time->end_tag[1] = 'Z';
	
	rval = pqisrc_build_send_raid_request(softs, &request, host_wellness_time,data_length,
					BMIC_WRITE_HOST_WELLNESS, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
	
	os_mem_free(softs, (char *)host_wellness_time, data_length);

	DBG_FUNC("OUT");
	return rval;
}

/*
 * Function used to perform a rescan of scsi devices
 * for any config change events
 */
int pqisrc_scan_devices(pqisrc_softstate_t *softs)
{
	boolean_t is_physical_device;
	int ret = PQI_STATUS_FAILURE;
	int i;
	int new_dev_cnt;
	int phy_log_dev_cnt;
	uint8_t *scsi3addr;
	uint32_t physical_cnt;
	uint32_t logical_cnt;
	uint32_t ndev_allocated = 0;
	size_t phys_data_length, log_data_length;
	reportlun_data_ext_t *physical_dev_list = NULL;
	reportlun_data_ext_t *logical_dev_list = NULL;
	reportlun_ext_entry_t *lun_ext_entry = NULL;
	bmic_ident_physdev_t *bmic_phy_info = NULL;
	pqi_scsi_dev_t **new_device_list = NULL;
	pqi_scsi_dev_t *device = NULL;
	

	DBG_FUNC("IN\n");

	ret = pqisrc_get_phys_log_device_list(softs, &physical_dev_list, &logical_dev_list,
				      &phys_data_length, &log_data_length);

	if (ret)
		goto err_out;

	physical_cnt = BE_32(physical_dev_list->header.list_length) 
		/ sizeof(physical_dev_list->lun_entries[0]);
	
	logical_cnt = BE_32(logical_dev_list->header.list_length)
		/ sizeof(logical_dev_list->lun_entries[0]);

	DBG_DISC("physical_cnt %d logical_cnt %d\n", physical_cnt, logical_cnt);

	if (physical_cnt) {
		bmic_phy_info = os_mem_alloc(softs, sizeof(*bmic_phy_info));
		if (bmic_phy_info == NULL) {
			ret = PQI_STATUS_FAILURE;
			DBG_ERR("failed to allocate memory for BMIC ID PHYS Device : %d\n", ret);
			goto err_out;
		}
	}
	phy_log_dev_cnt = physical_cnt + logical_cnt;
	new_device_list = os_mem_alloc(softs,
				sizeof(*new_device_list) * phy_log_dev_cnt);

	if (new_device_list == NULL) {
		ret = PQI_STATUS_FAILURE;
		DBG_ERR("failed to allocate memory for device list : %d\n", ret);
		goto err_out;
	}

	for (i = 0; i < phy_log_dev_cnt; i++) {
		new_device_list[i] = os_mem_alloc(softs,
						sizeof(*new_device_list[i]));
		if (new_device_list[i] == NULL) {
			ret = PQI_STATUS_FAILURE;
			DBG_ERR("failed to allocate memory for device list : %d\n", ret);
			ndev_allocated = i;
			goto err_out;
		}
	}

	ndev_allocated = phy_log_dev_cnt;
	new_dev_cnt = 0;
	for (i = 0; i < phy_log_dev_cnt; i++) {

		if (i < physical_cnt) {
			is_physical_device = true;
			lun_ext_entry = &physical_dev_list->lun_entries[i];
		} else {
			is_physical_device = false;
			lun_ext_entry =
				&logical_dev_list->lun_entries[i - physical_cnt];
		}

		scsi3addr = lun_ext_entry->lunid;
		/* Save the target sas adderess for external raid device */
		if(lun_ext_entry->device_type == CONTROLLER_DEVICE) {
			int target = lun_ext_entry->lunid[3] & 0x3f;
			softs->target_sas_addr[target] = BE_64(lun_ext_entry->wwid);
		}

		/* Skip masked physical non-disk devices. */
		if (MASKED_DEVICE(scsi3addr) && is_physical_device
				&& (lun_ext_entry->ioaccel_handle == 0))
			continue;

		device = new_device_list[new_dev_cnt];
		memset(device, 0, sizeof(*device));
		memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
		device->wwid = lun_ext_entry->wwid;
		device->is_physical_device = is_physical_device;
		if (!is_physical_device)
			device->is_external_raid_device =
				pqisrc_is_external_raid_addr(scsi3addr);
		

		/* Get device type, vendor, model, device ID. */
		ret = pqisrc_get_dev_data(softs, device);
		if (ret) {
			DBG_WARN("Inquiry failed, skipping device %016llx\n",
				 (unsigned long long)BE_64(device->scsi3addr[0]));
			DBG_DISC("INQUIRY FAILED \n");
			continue;
		}
		pqisrc_assign_btl(device);

		/*
		 * Expose all devices except for physical devices that
		 * are masked.
		 */
		if (device->is_physical_device &&
			MASKED_DEVICE(scsi3addr))
			device->expose_device = false;
		else
			device->expose_device = true;

		if (device->is_physical_device &&
		    (lun_ext_entry->device_flags &
		     REPORT_LUN_DEV_FLAG_AIO_ENABLED) &&
		     lun_ext_entry->ioaccel_handle) {
			device->aio_enabled = true;
		}
		switch (device->devtype) {
		case ROM_DEVICE:
			/*
			 * We don't *really* support actual CD-ROM devices,
			 * but we do support the HP "One Button Disaster
			 * Recovery" tape drive which temporarily pretends to
			 * be a CD-ROM drive.
			 */
			if (device->is_obdr_device)
				new_dev_cnt++;
			break;
		case DISK_DEVICE:
		case ZBC_DEVICE:
			if (device->is_physical_device) {
				device->ioaccel_handle =
					lun_ext_entry->ioaccel_handle;
				device->sas_address = BE_64(lun_ext_entry->wwid);
				pqisrc_get_physical_device_info(softs, device,
					bmic_phy_info);
			}
			new_dev_cnt++;
			break;
		case ENCLOSURE_DEVICE:
			if (device->is_physical_device) {
				device->sas_address = BE_64(lun_ext_entry->wwid);
			}
			new_dev_cnt++;
			break;	
		case TAPE_DEVICE:
		case MEDIUM_CHANGER_DEVICE:
			new_dev_cnt++;
			break;
		case RAID_DEVICE:
			/*
			 * Only present the HBA controller itself as a RAID
			 * controller.  If it's a RAID controller other than
			 * the HBA itself (an external RAID controller, MSA500
			 * or similar), don't present it.
			 */
			if (pqisrc_is_hba_lunid(scsi3addr))
				new_dev_cnt++;
			break;
		case SES_DEVICE:
		case CONTROLLER_DEVICE:
			break;
		}
	}
	DBG_DISC("new_dev_cnt %d\n", new_dev_cnt);

	pqisrc_update_device_list(softs, new_device_list, new_dev_cnt);
	
err_out:
	if (new_device_list) {
		for (i = 0; i < ndev_allocated; i++) {
			if (new_device_list[i]) {
				if(new_device_list[i]->raid_map)
					os_mem_free(softs, (char *)new_device_list[i]->raid_map,
					    					sizeof(pqisrc_raid_map_t));
				os_mem_free(softs, (char*)new_device_list[i],
					    			sizeof(*new_device_list[i]));
			}
		}
		os_mem_free(softs, (char *)new_device_list,
			    		sizeof(*new_device_list) * ndev_allocated); 
	}
	if(physical_dev_list)
		os_mem_free(softs, (char *)physical_dev_list, phys_data_length);
    	if(logical_dev_list)
		os_mem_free(softs, (char *)logical_dev_list, log_data_length);
	if (bmic_phy_info)
		os_mem_free(softs, (char *)bmic_phy_info, sizeof(*bmic_phy_info));
	
	DBG_FUNC("OUT \n");

	return ret;
}

/*
 * Clean up memory allocated for devices.
 */
void pqisrc_cleanup_devices(pqisrc_softstate_t *softs)
{

	int i = 0,j = 0;
	pqi_scsi_dev_t *dvp = NULL;
	DBG_FUNC("IN\n");
	
 	for(i = 0; i < PQI_MAX_DEVICES; i++) {
		for(j = 0; j < PQI_MAX_MULTILUN; j++) {
			if (softs->device_list[i][j] == NULL) 
				continue;
			dvp = softs->device_list[i][j];
			pqisrc_device_mem_free(softs, dvp);
		}
	}
	DBG_FUNC("OUT\n");
}