summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/be2iscsi/be_mgmt.c
blob: a88e63666b1f7ef6a0789c8d1f8b1c1185f3a819 (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
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
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
/**
 * Copyright (C) 2005 - 2015 Emulex
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.  The full GNU General
 * Public License is included in this distribution in the file called COPYING.
 *
 * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
 *
 * Contact Information:
 * linux-drivers@avagotech.com
 *
 * Emulex
 * 3333 Susan Street
 * Costa Mesa, CA 92626
 */

#include <linux/bsg-lib.h>
#include <scsi/scsi_transport_iscsi.h>
#include <scsi/scsi_bsg_iscsi.h>
#include "be_mgmt.h"
#include "be_iscsi.h"
#include "be_main.h"

/* UE Status Low CSR */
static const char * const desc_ue_status_low[] = {
	"CEV",
	"CTX",
	"DBUF",
	"ERX",
	"Host",
	"MPU",
	"NDMA",
	"PTC ",
	"RDMA ",
	"RXF ",
	"RXIPS ",
	"RXULP0 ",
	"RXULP1 ",
	"RXULP2 ",
	"TIM ",
	"TPOST ",
	"TPRE ",
	"TXIPS ",
	"TXULP0 ",
	"TXULP1 ",
	"UC ",
	"WDMA ",
	"TXULP2 ",
	"HOST1 ",
	"P0_OB_LINK ",
	"P1_OB_LINK ",
	"HOST_GPIO ",
	"MBOX ",
	"AXGMAC0",
	"AXGMAC1",
	"JTAG",
	"MPU_INTPEND"
};

/* UE Status High CSR */
static const char * const desc_ue_status_hi[] = {
	"LPCMEMHOST",
	"MGMT_MAC",
	"PCS0ONLINE",
	"MPU_IRAM",
	"PCS1ONLINE",
	"PCTL0",
	"PCTL1",
	"PMEM",
	"RR",
	"TXPB",
	"RXPP",
	"XAUI",
	"TXP",
	"ARM",
	"IPC",
	"HOST2",
	"HOST3",
	"HOST4",
	"HOST5",
	"HOST6",
	"HOST7",
	"HOST8",
	"HOST9",
	"NETC",
	"Unknown",
	"Unknown",
	"Unknown",
	"Unknown",
	"Unknown",
	"Unknown",
	"Unknown",
	"Unknown"
};

/*
 * beiscsi_ue_detec()- Detect Unrecoverable Error on adapter
 * @phba: Driver priv structure
 *
 * Read registers linked to UE and check for the UE status
 **/
void beiscsi_ue_detect(struct beiscsi_hba *phba)
{
	uint32_t ue_hi = 0, ue_lo = 0;
	uint32_t ue_mask_hi = 0, ue_mask_lo = 0;
	uint8_t i = 0;

	if (phba->ue_detected)
		return;

	pci_read_config_dword(phba->pcidev,
			      PCICFG_UE_STATUS_LOW, &ue_lo);
	pci_read_config_dword(phba->pcidev,
			      PCICFG_UE_STATUS_MASK_LOW,
			      &ue_mask_lo);
	pci_read_config_dword(phba->pcidev,
			      PCICFG_UE_STATUS_HIGH,
			      &ue_hi);
	pci_read_config_dword(phba->pcidev,
			      PCICFG_UE_STATUS_MASK_HI,
			      &ue_mask_hi);

	ue_lo = (ue_lo & ~ue_mask_lo);
	ue_hi = (ue_hi & ~ue_mask_hi);


	if (ue_lo || ue_hi) {
		phba->ue_detected = true;
		beiscsi_log(phba, KERN_ERR,
			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
			    "BG_%d : Error detected on the adapter\n");
	}

	if (ue_lo) {
		for (i = 0; ue_lo; ue_lo >>= 1, i++) {
			if (ue_lo & 1)
				beiscsi_log(phba, KERN_ERR,
					    BEISCSI_LOG_CONFIG,
					    "BG_%d : UE_LOW %s bit set\n",
					    desc_ue_status_low[i]);
		}
	}

	if (ue_hi) {
		for (i = 0; ue_hi; ue_hi >>= 1, i++) {
			if (ue_hi & 1)
				beiscsi_log(phba, KERN_ERR,
					    BEISCSI_LOG_CONFIG,
					    "BG_%d : UE_HIGH %s bit set\n",
					    desc_ue_status_hi[i]);
		}
	}
}

int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
		 struct be_set_eqd *set_eqd, int num)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_cmd_req_modify_eq_delay *req;
	unsigned int tag = 0;
	int i;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);

	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
		OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));

	req->num_eq = cpu_to_le32(num);
	for (i = 0; i < num; i++) {
		req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
		req->delay[i].phase = 0;
		req->delay[i].delay_multiplier =
				cpu_to_le32(set_eqd[i].delay_multiplier);
	}

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

/**
 * mgmt_reopen_session()- Reopen a session based on reopen_type
 * @phba: Device priv structure instance
 * @reopen_type: Type of reopen_session FW should do.
 * @sess_handle: Session Handle of the session to be re-opened
 *
 * return
 *	the TAG used for MBOX Command
 *
 **/
unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
				  unsigned int reopen_type,
				  unsigned int sess_handle)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_cmd_reopen_session_req *req;
	unsigned int tag = 0;

	beiscsi_log(phba, KERN_INFO,
		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
		    "BG_%d : In bescsi_get_boot_target\n");

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			   OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
			   sizeof(struct be_cmd_reopen_session_resp));

	/* set the reopen_type,sess_handle */
	req->reopen_type = reopen_type;
	req->session_handle = sess_handle;

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_cmd_get_boot_target_req *req;
	unsigned int tag = 0;

	beiscsi_log(phba, KERN_INFO,
		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
		    "BG_%d : In bescsi_get_boot_target\n");

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			   OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
			   sizeof(struct be_cmd_get_boot_target_resp));

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
				   u32 boot_session_handle,
				   struct be_dma_mem *nonemb_cmd)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	unsigned int tag = 0;
	struct  be_cmd_get_session_req *req;
	struct be_cmd_get_session_resp *resp;
	struct be_sge *sge;

	beiscsi_log(phba, KERN_INFO,
		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
		    "BG_%d : In beiscsi_get_session_info\n");

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	nonemb_cmd->size = sizeof(*resp);
	req = nonemb_cmd->va;
	memset(req, 0, sizeof(*req));
	wrb = wrb_from_mccq(phba);
	sge = nonembedded_sgl(wrb);
	wrb->tag0 |= tag;


	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			   OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
			   sizeof(*resp));
	req->session_handle = boot_session_handle;
	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
	sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
	sge->len = cpu_to_le32(nonemb_cmd->size);

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

/**
 * mgmt_get_port_name()- Get port name for the function
 * @ctrl: ptr to Ctrl Info
 * @phba: ptr to the dev priv structure
 *
 * Get the alphanumeric character for port
 *
 **/
int mgmt_get_port_name(struct be_ctrl_info *ctrl,
		       struct beiscsi_hba *phba)
{
	int ret = 0;
	struct be_mcc_wrb *wrb;
	struct be_cmd_get_port_name *ioctl;

	mutex_lock(&ctrl->mbox_lock);
	wrb = wrb_from_mbox(&ctrl->mbox_mem);
	memset(wrb, 0, sizeof(*wrb));
	ioctl = embedded_payload(wrb);

	be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
	be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
			   OPCODE_COMMON_GET_PORT_NAME,
			   EMBED_MBX_MAX_PAYLOAD_SIZE);
	ret = be_mbox_notify(ctrl);
	phba->port_name = 0;
	if (!ret) {
		phba->port_name = ioctl->p.resp.port_names >>
				  (phba->fw_config.phys_port * 8) & 0xff;
	} else {
		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
			    "BG_%d : GET_PORT_NAME ret 0x%x status 0x%x\n",
			    ret, ioctl->h.resp_hdr.status);
	}

	if (phba->port_name == 0)
		phba->port_name = '?';

	mutex_unlock(&ctrl->mbox_lock);
	return ret;
}

/**
 * mgmt_get_fw_config()- Get the FW config for the function
 * @ctrl: ptr to Ctrl Info
 * @phba: ptr to the dev priv structure
 *
 * Get the FW config and resources available for the function.
 * The resources are created based on the count received here.
 *
 * return
 *	Success: 0
 *	Failure: Non-Zero Value
 **/
int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
				struct beiscsi_hba *phba)
{
	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
	struct be_fw_cfg *pfw_cfg = embedded_payload(wrb);
	uint32_t cid_count, icd_count;
	int status = -EINVAL;
	uint8_t ulp_num = 0;

	mutex_lock(&ctrl->mbox_lock);
	memset(wrb, 0, sizeof(*wrb));
	be_wrb_hdr_prepare(wrb, sizeof(*pfw_cfg), true, 0);

	be_cmd_hdr_prepare(&pfw_cfg->hdr, CMD_SUBSYSTEM_COMMON,
			   OPCODE_COMMON_QUERY_FIRMWARE_CONFIG,
			   EMBED_MBX_MAX_PAYLOAD_SIZE);

	if (be_mbox_notify(ctrl)) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d : Failed in mgmt_get_fw_config\n");
		goto fail_init;
	}

	/* FW response formats depend on port id */
	phba->fw_config.phys_port = pfw_cfg->phys_port;
	if (phba->fw_config.phys_port >= BEISCSI_PHYS_PORT_MAX) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d : invalid physical port id %d\n",
			    phba->fw_config.phys_port);
		goto fail_init;
	}

	/* populate and check FW config against min and max values */
	if (!is_chip_be2_be3r(phba)) {
		phba->fw_config.eqid_count = pfw_cfg->eqid_count;
		phba->fw_config.cqid_count = pfw_cfg->cqid_count;
		if (phba->fw_config.eqid_count == 0 ||
		    phba->fw_config.eqid_count > 2048) {
			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
				    "BG_%d : invalid EQ count %d\n",
				    phba->fw_config.eqid_count);
			goto fail_init;
		}
		if (phba->fw_config.cqid_count == 0 ||
		    phba->fw_config.cqid_count > 4096) {
			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
				    "BG_%d : invalid CQ count %d\n",
				    phba->fw_config.cqid_count);
			goto fail_init;
		}
		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
			    "BG_%d : EQ_Count : %d CQ_Count : %d\n",
			    phba->fw_config.eqid_count,
			    phba->fw_config.cqid_count);
	}

	/**
	 * Check on which all ULP iSCSI Protocol is loaded.
	 * Set the Bit for those ULP. This set flag is used
	 * at all places in the code to check on which ULP
	 * iSCSi Protocol is loaded
	 **/
	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
		if (pfw_cfg->ulp[ulp_num].ulp_mode &
		    BEISCSI_ULP_ISCSI_INI_MODE) {
			set_bit(ulp_num, &phba->fw_config.ulp_supported);

			/* Get the CID, ICD and Chain count for each ULP */
			phba->fw_config.iscsi_cid_start[ulp_num] =
				pfw_cfg->ulp[ulp_num].sq_base;
			phba->fw_config.iscsi_cid_count[ulp_num] =
				pfw_cfg->ulp[ulp_num].sq_count;

			phba->fw_config.iscsi_icd_start[ulp_num] =
				pfw_cfg->ulp[ulp_num].icd_base;
			phba->fw_config.iscsi_icd_count[ulp_num] =
				pfw_cfg->ulp[ulp_num].icd_count;

			phba->fw_config.iscsi_chain_start[ulp_num] =
				pfw_cfg->chain_icd[ulp_num].chain_base;
			phba->fw_config.iscsi_chain_count[ulp_num] =
				pfw_cfg->chain_icd[ulp_num].chain_count;

			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
				    "BG_%d : Function loaded on ULP : %d\n"
				    "\tiscsi_cid_count : %d\n"
				    "\tiscsi_cid_start : %d\n"
				    "\t iscsi_icd_count : %d\n"
				    "\t iscsi_icd_start : %d\n",
				    ulp_num,
				    phba->fw_config.
				    iscsi_cid_count[ulp_num],
				    phba->fw_config.
				    iscsi_cid_start[ulp_num],
				    phba->fw_config.
				    iscsi_icd_count[ulp_num],
				    phba->fw_config.
				    iscsi_icd_start[ulp_num]);
		}
	}

	if (phba->fw_config.ulp_supported == 0) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d : iSCSI initiator mode not set: ULP0 %x ULP1 %x\n",
			    pfw_cfg->ulp[BEISCSI_ULP0].ulp_mode,
			    pfw_cfg->ulp[BEISCSI_ULP1].ulp_mode);
		goto fail_init;
	}

	/**
	 * ICD is shared among ULPs. Use icd_count of any one loaded ULP
	 **/
	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
		if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
			break;
	icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
	if (icd_count == 0 || icd_count > 65536) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d: invalid ICD count %d\n", icd_count);
		goto fail_init;
	}

	cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
		    BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
	if (cid_count == 0 || cid_count > 4096) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d: invalid CID count %d\n", cid_count);
		goto fail_init;
	}

	/**
	 * Check FW is dual ULP aware i.e. can handle either
	 * of the protocols.
	 */
	phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode &
					  BEISCSI_FUNC_DUA_MODE);

	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
		    "BG_%d : DUA Mode : 0x%x\n",
		    phba->fw_config.dual_ulp_aware);

	/* all set, continue using this FW config */
	status = 0;
fail_init:
	mutex_unlock(&ctrl->mbox_lock);
	return status;
}

int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
				      struct beiscsi_hba *phba)
{
	struct be_dma_mem nonemb_cmd;
	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
	struct be_mgmt_controller_attributes *req;
	struct be_sge *sge = nonembedded_sgl(wrb);
	int status = 0;

	nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
				sizeof(struct be_mgmt_controller_attributes),
				&nonemb_cmd.dma);
	if (nonemb_cmd.va == NULL) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d : Failed to allocate memory for "
			    "mgmt_check_supported_fw\n");
		return -ENOMEM;
	}
	nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
	req = nonemb_cmd.va;
	memset(req, 0, sizeof(*req));
	mutex_lock(&ctrl->mbox_lock);
	memset(wrb, 0, sizeof(*wrb));
	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
			   OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
	sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
	sge->len = cpu_to_le32(nonemb_cmd.size);
	status = be_mbox_notify(ctrl);
	if (!status) {
		struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
			    "BG_%d : Firmware Version of CMD : %s\n"
			    "Firmware Version is : %s\n"
			    "Developer Build, not performing version check...\n",
			    resp->params.hba_attribs
			    .flashrom_version_string,
			    resp->params.hba_attribs.
			    firmware_version_string);

		phba->fw_config.iscsi_features =
				resp->params.hba_attribs.iscsi_features;
		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
			    "BM_%d : phba->fw_config.iscsi_features = %d\n",
			    phba->fw_config.iscsi_features);
		memcpy(phba->fw_ver_str, resp->params.hba_attribs.
		       firmware_version_string, BEISCSI_VER_STRLEN);
	} else
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
			    "BG_%d :  Failed in mgmt_check_supported_fw\n");
	mutex_unlock(&ctrl->mbox_lock);
	if (nonemb_cmd.va)
		pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
				    nonemb_cmd.va, nonemb_cmd.dma);

	return status;
}

unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
					 struct beiscsi_hba *phba,
					 struct bsg_job *job,
					 struct be_dma_mem *nonemb_cmd)
{
	struct be_cmd_resp_hdr *resp;
	struct be_mcc_wrb *wrb;
	struct be_sge *mcc_sge;
	unsigned int tag = 0;
	struct iscsi_bsg_request *bsg_req = job->request;
	struct be_bsg_vendor_cmd *req = nonemb_cmd->va;
	unsigned short region, sector_size, sector, offset;

	nonemb_cmd->size = job->request_payload.payload_len;
	memset(nonemb_cmd->va, 0, nonemb_cmd->size);
	resp = nonemb_cmd->va;
	region =  bsg_req->rqst_data.h_vendor.vendor_cmd[1];
	sector_size =  bsg_req->rqst_data.h_vendor.vendor_cmd[2];
	sector =  bsg_req->rqst_data.h_vendor.vendor_cmd[3];
	offset =  bsg_req->rqst_data.h_vendor.vendor_cmd[4];
	req->region = region;
	req->sector = sector;
	req->offset = offset;

	if (mutex_lock_interruptible(&ctrl->mbox_lock))
		return 0;
	switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
	case BEISCSI_WRITE_FLASH:
		offset = sector * sector_size + offset;
		be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
				   OPCODE_COMMON_WRITE_FLASH, sizeof(*req));
		sg_copy_to_buffer(job->request_payload.sg_list,
				  job->request_payload.sg_cnt,
				  nonemb_cmd->va + offset, job->request_len);
		break;
	case BEISCSI_READ_FLASH:
		be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
			   OPCODE_COMMON_READ_FLASH, sizeof(*req));
		break;
	default:
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
			    "BG_%d : Unsupported cmd = 0x%x\n\n",
			    bsg_req->rqst_data.h_vendor.vendor_cmd[0]);

		mutex_unlock(&ctrl->mbox_lock);
		return -ENOSYS;
	}

	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	wrb = wrb_from_mccq(phba);
	mcc_sge = nonembedded_sgl(wrb);
	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,
			   job->request_payload.sg_cnt);
	mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
	mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
	mcc_sge->len = cpu_to_le32(nonemb_cmd->size);
	wrb->tag0 |= tag;

	be_mcc_notify(phba, tag);

	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

/**
 * mgmt_epfw_cleanup()- Inform FW to cleanup data structures.
 * @phba: pointer to dev priv structure
 * @ulp_num: ULP number.
 *
 * return
 *	Success: 0
 *	Failure: Non-Zero Value
 **/
int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
	struct iscsi_cleanup_req *req = embedded_payload(wrb);
	unsigned int tag;
	int status;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return -EBUSY;
	}

	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
			   OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
	wrb->tag0 |= tag;

	req->chute = (1 << ulp_num);
	req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, ulp_num));
	req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, ulp_num));

	be_mcc_notify(phba, tag);
	status = be_mcc_compl_poll(phba, tag);
	if (status)
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
			    "BG_%d : mgmt_epfw_cleanup , FAILED\n");
	mutex_unlock(&ctrl->mbox_lock);
	return status;
}

unsigned int  mgmt_invalidate_icds(struct beiscsi_hba *phba,
				struct invalidate_command_table *inv_tbl,
				unsigned int num_invalidate, unsigned int cid,
				struct be_dma_mem *nonemb_cmd)

{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_sge *sge;
	struct invalidate_commands_params_in *req;
	unsigned int i, tag = 0;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	req = nonemb_cmd->va;
	memset(req, 0, sizeof(*req));
	wrb = wrb_from_mccq(phba);
	sge = nonembedded_sgl(wrb);
	wrb->tag0 |= tag;

	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
			OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
			sizeof(*req));
	req->ref_handle = 0;
	req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
	for (i = 0; i < num_invalidate; i++) {
		req->table[i].icd = inv_tbl->icd;
		req->table[i].cid = inv_tbl->cid;
		req->icd_count++;
		inv_tbl++;
	}
	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
	sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
	sge->len = cpu_to_le32(nonemb_cmd->size);

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
					 struct beiscsi_endpoint *beiscsi_ep,
					 unsigned short cid,
					 unsigned short issue_reset,
					 unsigned short savecfg_flag)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct iscsi_invalidate_connection_params_in *req;
	unsigned int tag = 0;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}
	wrb = wrb_from_mccq(phba);
	wrb->tag0 |= tag;
	req = embedded_payload(wrb);

	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			   OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
			   sizeof(*req));
	req->session_handle = beiscsi_ep->fw_handle;
	req->cid = cid;
	if (issue_reset)
		req->cleanup_type = CMD_ISCSI_CONNECTION_ISSUE_TCP_RST;
	else
		req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
	req->save_cfg = savecfg_flag;
	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
				unsigned short cid, unsigned int upload_flag)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct tcp_upload_params_in *req;
	unsigned int tag = 0;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}
	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;

	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
			   OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
	req->id = (unsigned short)cid;
	req->upload_type = (unsigned char)upload_flag;
	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

/**
 * mgmt_open_connection()- Establish a TCP CXN
 * @dst_addr: Destination Address
 * @beiscsi_ep: ptr to device endpoint struct
 * @nonemb_cmd: ptr to memory allocated for command
 *
 * return
 *	Success: Tag number of the MBX Command issued
 *	Failure: Error code
 **/
int mgmt_open_connection(struct beiscsi_hba *phba,
			 struct sockaddr *dst_addr,
			 struct beiscsi_endpoint *beiscsi_ep,
			 struct be_dma_mem *nonemb_cmd)
{
	struct hwi_controller *phwi_ctrlr;
	struct hwi_context_memory *phwi_context;
	struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
	struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct tcp_connect_and_offload_in_v1 *req;
	unsigned short def_hdr_id;
	unsigned short def_data_id;
	struct phys_addr template_address = { 0, 0 };
	struct phys_addr *ptemplate_address;
	unsigned int tag = 0;
	unsigned int i, ulp_num;
	unsigned short cid = beiscsi_ep->ep_cid;
	struct be_sge *sge;

	phwi_ctrlr = phba->phwi_ctrlr;
	phwi_context = phwi_ctrlr->phwi_ctxt;

	ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;

	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);

	ptemplate_address = &template_address;
	ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
	if (mutex_lock_interruptible(&ctrl->mbox_lock))
		return 0;
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}
	wrb = wrb_from_mccq(phba);
	sge = nonembedded_sgl(wrb);

	req = nonemb_cmd->va;
	memset(req, 0, sizeof(*req));
	wrb->tag0 |= tag;

	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
			   OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
			   nonemb_cmd->size);
	if (dst_addr->sa_family == PF_INET) {
		__be32 s_addr = daddr_in->sin_addr.s_addr;
		req->ip_address.ip_type = BE2_IPV4;
		req->ip_address.addr[0] = s_addr & 0x000000ff;
		req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
		req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
		req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;
		req->tcp_port = ntohs(daddr_in->sin_port);
		beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
		beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
		beiscsi_ep->ip_type = BE2_IPV4;
	} else if (dst_addr->sa_family == PF_INET6) {
		req->ip_address.ip_type = BE2_IPV6;
		memcpy(&req->ip_address.addr,
		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
		req->tcp_port = ntohs(daddr_in6->sin6_port);
		beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
		memcpy(&beiscsi_ep->dst6_addr,
		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
		beiscsi_ep->ip_type = BE2_IPV6;
	} else{
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
			    "BG_%d : unknown addr family %d\n",
			    dst_addr->sa_family);
		mutex_unlock(&ctrl->mbox_lock);
		free_mcc_tag(&phba->ctrl, tag);
		return -EINVAL;

	}
	req->cid = cid;
	i = phba->nxt_cqid++;
	if (phba->nxt_cqid == phba->num_cpus)
		phba->nxt_cqid = 0;
	req->cq_id = phwi_context->be_cq[i].id;
	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
		    "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
	req->defq_id = def_hdr_id;
	req->hdr_ring_id = def_hdr_id;
	req->data_ring_id = def_data_id;
	req->do_offload = 1;
	req->dataout_template_pa.lo = ptemplate_address->lo;
	req->dataout_template_pa.hi = ptemplate_address->hi;
	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
	sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
	sge->len = cpu_to_le32(nonemb_cmd->size);

	if (!is_chip_be2_be3r(phba)) {
		req->hdr.version = MBX_CMD_VER1;
		req->tcp_window_size = 0;
		req->tcp_window_scale_count = 2;
	}

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_cmd_get_all_if_id_req *req;
	struct be_cmd_get_all_if_id_req *pbe_allid;
	unsigned int tag;
	int status = 0;

	if (mutex_lock_interruptible(&ctrl->mbox_lock))
		return -EINTR;
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return -ENOMEM;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;

	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
			   OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
			   sizeof(*req));
	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);

	status = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
	if (status) {
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
			    "BG_%d : Failed in mgmt_get_all_if_id\n");
		return -EBUSY;
	}

	pbe_allid = embedded_payload(wrb);
	phba->interface_handle = pbe_allid->if_hndl_list[0];

	return status;
}

/*
 * mgmt_exec_nonemb_cmd()- Execute Non Embedded MBX Cmd
 * @phba: Driver priv structure
 * @nonemb_cmd: Address of the MBX command issued
 * @resp_buf: Buffer to copy the MBX cmd response
 * @resp_buf_len: respone lenght to be copied
 *
 **/
static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
				struct be_dma_mem *nonemb_cmd, void *resp_buf,
				int resp_buf_len)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_sge *sge;
	unsigned int tag;
	int rc = 0;

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		rc = -ENOMEM;
		goto free_cmd;
	}

	wrb = wrb_from_mccq(phba);
	wrb->tag0 |= tag;
	sge = nonembedded_sgl(wrb);

	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
	sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));
	sge->len = cpu_to_le32(nonemb_cmd->size);

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);

	rc = beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd);

	if (resp_buf)
		memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);

	if (rc) {
		/* Check if the MBX Cmd needs to be re-issued */
		if (rc == -EAGAIN)
			return rc;

		beiscsi_log(phba, KERN_WARNING,
			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
			    "BG_%d : mgmt_exec_nonemb_cmd Failed status\n");

		if (rc != -EBUSY)
			goto free_cmd;
		else
			return rc;
	}
free_cmd:
	pci_free_consistent(ctrl->pdev, nonemb_cmd->size,
			    nonemb_cmd->va, nonemb_cmd->dma);
	return rc;
}

static int mgmt_alloc_cmd_data(struct beiscsi_hba *phba, struct be_dma_mem *cmd,
			       int iscsi_cmd, int size)
{
	cmd->va = pci_zalloc_consistent(phba->ctrl.pdev, size, &cmd->dma);
	if (!cmd->va) {
		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
			    "BG_%d : Failed to allocate memory for if info\n");
		return -ENOMEM;
	}
	cmd->size = size;
	be_cmd_hdr_prepare(cmd->va, CMD_SUBSYSTEM_ISCSI, iscsi_cmd, size);
	return 0;
}

static int
mgmt_static_ip_modify(struct beiscsi_hba *phba,
		      struct be_cmd_get_if_info_resp *if_info,
		      struct iscsi_iface_param_info *ip_param,
		      struct iscsi_iface_param_info *subnet_param,
		      uint32_t ip_action)
{
	struct be_cmd_set_ip_addr_req *req;
	struct be_dma_mem nonemb_cmd;
	uint32_t ip_type;
	int rc;

	rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
				 OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
				 sizeof(*req));
	if (rc)
		return rc;

	ip_type = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
		BE2_IPV6 : BE2_IPV4 ;

	req = nonemb_cmd.va;
	req->ip_params.record_entry_count = 1;
	req->ip_params.ip_record.action = ip_action;
	req->ip_params.ip_record.interface_hndl =
		phba->interface_handle;
	req->ip_params.ip_record.ip_addr.size_of_structure =
		sizeof(struct be_ip_addr_subnet_format);
	req->ip_params.ip_record.ip_addr.ip_type = ip_type;

	if (ip_action == IP_ACTION_ADD) {
		memcpy(req->ip_params.ip_record.ip_addr.addr, ip_param->value,
		       sizeof(req->ip_params.ip_record.ip_addr.addr));

		if (subnet_param)
			memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
			       subnet_param->value,
			       sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
	} else {
		memcpy(req->ip_params.ip_record.ip_addr.addr,
		       if_info->ip_addr.addr,
		       sizeof(req->ip_params.ip_record.ip_addr.addr));

		memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
		       if_info->ip_addr.subnet_mask,
		       sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
	}

	rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
	if (rc < 0)
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
			    "BG_%d : Failed to Modify existing IP Address\n");
	return rc;
}

static int mgmt_modify_gateway(struct beiscsi_hba *phba, uint8_t *gt_addr,
			       uint32_t gtway_action, uint32_t param_len)
{
	struct be_cmd_set_def_gateway_req *req;
	struct be_dma_mem nonemb_cmd;
	int rt_val;


	rt_val = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
				OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
				sizeof(*req));
	if (rt_val)
		return rt_val;

	req = nonemb_cmd.va;
	req->action = gtway_action;
	req->ip_addr.ip_type = BE2_IPV4;

	memcpy(req->ip_addr.addr, gt_addr, sizeof(req->ip_addr.addr));

	return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
}

int mgmt_set_ip(struct beiscsi_hba *phba,
		struct iscsi_iface_param_info *ip_param,
		struct iscsi_iface_param_info *subnet_param,
		uint32_t boot_proto)
{
	struct be_cmd_get_def_gateway_resp gtway_addr_set;
	struct be_cmd_get_if_info_resp *if_info;
	struct be_cmd_set_dhcp_req *dhcpreq;
	struct be_cmd_rel_dhcp_req *reldhcp;
	struct be_dma_mem nonemb_cmd;
	uint8_t *gtway_addr;
	uint32_t ip_type;
	int rc;

	rc = mgmt_get_all_if_id(phba);
	if (rc)
		return rc;

	ip_type = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
		BE2_IPV6 : BE2_IPV4 ;

	rc = mgmt_get_if_info(phba, ip_type, &if_info);
	if (rc)
		return rc;

	if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
		if (if_info->dhcp_state) {
			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
				    "BG_%d : DHCP Already Enabled\n");
			goto exit;
		}
		/* The ip_param->len is 1 in DHCP case. Setting
		   proper IP len as this it is used while
		   freeing the Static IP.
		 */
		ip_param->len = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
				IP_V6_LEN : IP_V4_LEN;

	} else {
		if (if_info->dhcp_state) {

			memset(if_info, 0, sizeof(*if_info));
			rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
				OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
				sizeof(*reldhcp));

			if (rc)
				goto exit;

			reldhcp = nonemb_cmd.va;
			reldhcp->interface_hndl = phba->interface_handle;
			reldhcp->ip_type = ip_type;

			rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
			if (rc < 0) {
				beiscsi_log(phba, KERN_WARNING,
					    BEISCSI_LOG_CONFIG,
					    "BG_%d : Failed to Delete existing dhcp\n");
				goto exit;
			}
		}
	}

	/* Delete the Static IP Set */
	if (if_info->ip_addr.addr[0]) {
		rc = mgmt_static_ip_modify(phba, if_info, ip_param, NULL,
					   IP_ACTION_DEL);
		if (rc)
			goto exit;
	}

	/* Delete the Gateway settings if mode change is to DHCP */
	if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
		memset(&gtway_addr_set, 0, sizeof(gtway_addr_set));
		rc = mgmt_get_gateway(phba, BE2_IPV4, &gtway_addr_set);
		if (rc) {
			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
				    "BG_%d : Failed to Get Gateway Addr\n");
			goto exit;
		}

		if (gtway_addr_set.ip_addr.addr[0]) {
			gtway_addr = (uint8_t *)&gtway_addr_set.ip_addr.addr;
			rc = mgmt_modify_gateway(phba, gtway_addr,
						 IP_ACTION_DEL, IP_V4_LEN);

			if (rc) {
				beiscsi_log(phba, KERN_WARNING,
					    BEISCSI_LOG_CONFIG,
					    "BG_%d : Failed to clear Gateway Addr Set\n");
				goto exit;
			}
		}
	}

	/* Set Adapter to DHCP/Static Mode */
	if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
		rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
			OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
			sizeof(*dhcpreq));
		if (rc)
			goto exit;

		dhcpreq = nonemb_cmd.va;
		dhcpreq->flags = BLOCKING;
		dhcpreq->retry_count = 1;
		dhcpreq->interface_hndl = phba->interface_handle;
		dhcpreq->ip_type = BE2_DHCP_V4;

		rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
	} else {
		rc = mgmt_static_ip_modify(phba, if_info, ip_param,
					     subnet_param, IP_ACTION_ADD);
	}

exit:
	kfree(if_info);
	return rc;
}

int mgmt_set_gateway(struct beiscsi_hba *phba,
		     struct iscsi_iface_param_info *gateway_param)
{
	struct be_cmd_get_def_gateway_resp gtway_addr_set;
	uint8_t *gtway_addr;
	int rt_val;

	memset(&gtway_addr_set, 0, sizeof(gtway_addr_set));
	rt_val = mgmt_get_gateway(phba, BE2_IPV4, &gtway_addr_set);
	if (rt_val) {
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
			    "BG_%d : Failed to Get Gateway Addr\n");
		return rt_val;
	}

	if (gtway_addr_set.ip_addr.addr[0]) {
		gtway_addr = (uint8_t *)&gtway_addr_set.ip_addr.addr;
		rt_val = mgmt_modify_gateway(phba, gtway_addr, IP_ACTION_DEL,
					     gateway_param->len);
		if (rt_val) {
			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
				    "BG_%d : Failed to clear Gateway Addr Set\n");
			return rt_val;
		}
	}

	gtway_addr = (uint8_t *)&gateway_param->value;
	rt_val = mgmt_modify_gateway(phba, gtway_addr, IP_ACTION_ADD,
				     gateway_param->len);

	if (rt_val)
		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
			    "BG_%d : Failed to Set Gateway Addr\n");

	return rt_val;
}

int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
		     struct be_cmd_get_def_gateway_resp *gateway)
{
	struct be_cmd_get_def_gateway_req *req;
	struct be_dma_mem nonemb_cmd;
	int rc;

	rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
				 OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
				 sizeof(*gateway));
	if (rc)
		return rc;

	req = nonemb_cmd.va;
	req->ip_type = ip_type;

	return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, gateway,
				    sizeof(*gateway));
}

int mgmt_get_if_info(struct beiscsi_hba *phba, int ip_type,
		     struct be_cmd_get_if_info_resp **if_info)
{
	struct be_cmd_get_if_info_req *req;
	struct be_dma_mem nonemb_cmd;
	uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
	int rc;

	rc = mgmt_get_all_if_id(phba);
	if (rc)
		return rc;

	do {
		rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
					 OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
					 ioctl_size);
		if (rc)
			return rc;

		req = nonemb_cmd.va;
		req->interface_hndl = phba->interface_handle;
		req->ip_type = ip_type;

		/* Allocate memory for if_info */
		*if_info = kzalloc(ioctl_size, GFP_KERNEL);
		if (!*if_info) {
			beiscsi_log(phba, KERN_ERR,
				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
				    "BG_%d : Memory Allocation Failure\n");

				/* Free the DMA memory for the IOCTL issuing */
				pci_free_consistent(phba->ctrl.pdev,
						    nonemb_cmd.size,
						    nonemb_cmd.va,
						    nonemb_cmd.dma);
				return -ENOMEM;
		}

		rc =  mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, *if_info,
					   ioctl_size);

		/* Check if the error is because of Insufficent_Buffer */
		if (rc == -EAGAIN) {

			/* Get the new memory size */
			ioctl_size = ((struct be_cmd_resp_hdr *)
				      nonemb_cmd.va)->actual_resp_len;
			ioctl_size += sizeof(struct be_cmd_req_hdr);

			/* Free the previous allocated DMA memory */
			pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
					    nonemb_cmd.va,
					    nonemb_cmd.dma);

			/* Free the virtual memory */
			kfree(*if_info);
		} else
			break;
	} while (true);
	return rc;
}

int mgmt_get_nic_conf(struct beiscsi_hba *phba,
		      struct be_cmd_get_nic_conf_resp *nic)
{
	struct be_dma_mem nonemb_cmd;
	int rc;

	rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
				 OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
				 sizeof(*nic));
	if (rc)
		return rc;

	return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, nic, sizeof(*nic));
}



unsigned int be_cmd_get_initname(struct beiscsi_hba *phba)
{
	unsigned int tag = 0;
	struct be_mcc_wrb *wrb;
	struct be_cmd_hba_name *req;
	struct be_ctrl_info *ctrl = &phba->ctrl;

	if (mutex_lock_interruptible(&ctrl->mbox_lock))
		return 0;
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		return tag;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			OPCODE_ISCSI_INI_CFG_GET_HBA_NAME,
			sizeof(*req));

	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);
	return tag;
}

/**
 * be_mgmt_get_boot_shandle()- Get the session handle
 * @phba: device priv structure instance
 * @s_handle: session handle returned for boot session.
 *
 * Get the boot target session handle. In case of
 * crashdump mode driver has to issue and MBX Cmd
 * for FW to login to boot target
 *
 * return
 *	Success: 0
 *	Failure: Non-Zero value
 *
 **/
int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
			      unsigned int *s_handle)
{
	struct be_cmd_get_boot_target_resp *boot_resp;
	struct be_mcc_wrb *wrb;
	unsigned int tag;
	uint8_t boot_retry = 3;
	int rc;

	do {
		/* Get the Boot Target Session Handle and Count*/
		tag = mgmt_get_boot_target(phba);
		if (!tag) {
			beiscsi_log(phba, KERN_ERR,
				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
				    "BG_%d : Getting Boot Target Info Failed\n");
			return -EAGAIN;
		}

		rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
		if (rc) {
			beiscsi_log(phba, KERN_ERR,
				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
				    "BG_%d : MBX CMD get_boot_target Failed\n");
			return -EBUSY;
		}

		boot_resp = embedded_payload(wrb);

		/* Check if the there are any Boot targets configured */
		if (!boot_resp->boot_session_count) {
			beiscsi_log(phba, KERN_INFO,
				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
				    "BG_%d  ;No boot targets configured\n");
			return -ENXIO;
		}

		/* FW returns the session handle of the boot session */
		if (boot_resp->boot_session_handle != INVALID_SESS_HANDLE) {
			*s_handle = boot_resp->boot_session_handle;
			return 0;
		}

		/* Issue MBX Cmd to FW to login to the boot target */
		tag = mgmt_reopen_session(phba, BE_REOPEN_BOOT_SESSIONS,
					  INVALID_SESS_HANDLE);
		if (!tag) {
			beiscsi_log(phba, KERN_ERR,
				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
				    "BG_%d : mgmt_reopen_session Failed\n");
			return -EAGAIN;
		}

		rc = beiscsi_mccq_compl(phba, tag, NULL, NULL);
		if (rc) {
			beiscsi_log(phba, KERN_ERR,
				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
				    "BG_%d : mgmt_reopen_session Failed");
			return rc;
		}
	} while (--boot_retry);

	/* Couldn't log into the boot target */
	beiscsi_log(phba, KERN_ERR,
		    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
		    "BG_%d : Login to Boot Target Failed\n");
	return -ENXIO;
}

/**
 * mgmt_set_vlan()- Issue and wait for CMD completion
 * @phba: device private structure instance
 * @vlan_tag: VLAN tag
 *
 * Issue the MBX Cmd and wait for the completion of the
 * command.
 *
 * returns
 *	Success: 0
 *	Failure: Non-Xero Value
 **/
int mgmt_set_vlan(struct beiscsi_hba *phba,
		   uint16_t vlan_tag)
{
	int rc;
	unsigned int tag;

	tag = be_cmd_set_vlan(phba, vlan_tag);
	if (!tag) {
		beiscsi_log(phba, KERN_ERR,
			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
			    "BG_%d : VLAN Setting Failed\n");
		return -EBUSY;
	}

	rc = beiscsi_mccq_compl(phba, tag, NULL, NULL);
	if (rc) {
		beiscsi_log(phba, KERN_ERR,
			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
			    "BS_%d : VLAN MBX Cmd Failed\n");
		return rc;
	}
	return rc;
}

/**
 * beiscsi_drvr_ver_disp()- Display the driver Name and Version
 * @dev: ptr to device not used.
 * @attr: device attribute, not used.
 * @buf: contains formatted text driver name and version
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
		       char *buf)
{
	return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
}

/**
 * beiscsi_fw_ver_disp()- Display Firmware Version
 * @dev: ptr to device not used.
 * @attr: device attribute, not used.
 * @buf: contains formatted text Firmware version
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
		     char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct beiscsi_hba *phba = iscsi_host_priv(shost);

	return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
}

/**
 * beiscsi_active_session_disp()- Display Sessions Active
 * @dev: ptr to device not used.
 * @attr: device attribute, not used.
 * @buf: contains formatted text Session Count
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct beiscsi_hba *phba = iscsi_host_priv(shost);
	uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;

	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
			avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
			total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
			len += snprintf(buf+len, PAGE_SIZE - len,
					"ULP%d : %d\n", ulp_num,
					(total_cids - avlbl_cids));
		} else
			len += snprintf(buf+len, PAGE_SIZE - len,
					"ULP%d : %d\n", ulp_num, 0);
	}

	return len;
}

/**
 * beiscsi_free_session_disp()- Display Avaliable Session
 * @dev: ptr to device not used.
 * @attr: device attribute, not used.
 * @buf: contains formatted text Session Count
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
		       char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct beiscsi_hba *phba = iscsi_host_priv(shost);
	uint16_t ulp_num, len = 0;

	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
			len += snprintf(buf+len, PAGE_SIZE - len,
					"ULP%d : %d\n", ulp_num,
					BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
		else
			len += snprintf(buf+len, PAGE_SIZE - len,
					"ULP%d : %d\n", ulp_num, 0);
	}

	return len;
}

/**
 * beiscsi_adap_family_disp()- Display adapter family.
 * @dev: ptr to device to get priv structure
 * @attr: device attribute, not used.
 * @buf: contains formatted text driver name and version
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	uint16_t dev_id = 0;
	struct Scsi_Host *shost = class_to_shost(dev);
	struct beiscsi_hba *phba = iscsi_host_priv(shost);

	dev_id = phba->pcidev->device;
	switch (dev_id) {
	case BE_DEVICE_ID1:
	case OC_DEVICE_ID1:
	case OC_DEVICE_ID2:
		return snprintf(buf, PAGE_SIZE, "BE2 Adapter Family\n");
		break;
	case BE_DEVICE_ID2:
	case OC_DEVICE_ID3:
		return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");
		break;
	case OC_SKH_ID1:
		return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");
		break;
	default:
		return snprintf(buf, PAGE_SIZE,
				"Unknown Adapter Family: 0x%x\n", dev_id);
		break;
	}
}

/**
 * beiscsi_phys_port()- Display Physical Port Identifier
 * @dev: ptr to device not used.
 * @attr: device attribute, not used.
 * @buf: contains formatted text port identifier
 *
 * return
 * size of the formatted string
 **/
ssize_t
beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct beiscsi_hba *phba = iscsi_host_priv(shost);

	return snprintf(buf, PAGE_SIZE, "Port Identifier : %d\n",
			phba->fw_config.phys_port);
}

void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
			     struct wrb_handle *pwrb_handle,
			     struct be_mem_descriptor *mem_descr,
			     struct hwi_wrb_context *pwrb_context)
{
	struct iscsi_wrb *pwrb = pwrb_handle->pwrb;

	memset(pwrb, 0, sizeof(*pwrb));
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      max_send_data_segment_length, pwrb,
		      params->dw[offsetof(struct amap_beiscsi_offload_params,
		      max_send_data_segment_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
		      BE_TGT_CTX_UPDT_CMD);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      first_burst_length,
		      pwrb,
		      params->dw[offsetof(struct amap_beiscsi_offload_params,
		      first_burst_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      erl) / 32] & OFFLD_PARAMS_ERL));
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		       dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
		      pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      exp_statsn) / 32] + 1));
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
		      pwrb, pwrb_handle->wrb_index);

	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      max_burst_length, pwrb, params->dw[offsetof
		      (struct amap_beiscsi_offload_params,
		      max_burst_length) / 32]);

	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
		      pwrb, pwrb_handle->wrb_index);
	if (pwrb_context->plast_wrb)
		AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
			      ptr2nextwrb,
			      pwrb_context->plast_wrb,
			      pwrb_handle->wrb_index);
	pwrb_context->plast_wrb = pwrb;

	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      session_state, pwrb, 0);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
		      pwrb, 1);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
		      pwrb, 0);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
		      0);

	mem_descr += ISCSI_MEM_GLOBAL_HEADER;
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      pad_buffer_addr_hi, pwrb,
		      mem_descr->mem_array[0].bus_address.u.a32.address_hi);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
		      pad_buffer_addr_lo, pwrb,
		      mem_descr->mem_array[0].bus_address.u.a32.address_lo);
}

void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
			     struct wrb_handle *pwrb_handle,
			     struct hwi_wrb_context *pwrb_context)
{
	struct iscsi_wrb *pwrb = pwrb_handle->pwrb;

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

	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      max_burst_length, pwrb, params->dw[offsetof
		      (struct amap_beiscsi_offload_params,
		      max_burst_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      type, pwrb,
		      BE_TGT_CTX_UPDT_CMD);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      ptr2nextwrb,
		      pwrb, pwrb_handle->wrb_index);
	if (pwrb_context->plast_wrb)
		AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
			      ptr2nextwrb,
			      pwrb_context->plast_wrb,
			      pwrb_handle->wrb_index);
	pwrb_context->plast_wrb = pwrb;

	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,
		      pwrb, pwrb_handle->wrb_index);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      max_send_data_segment_length, pwrb,
		      params->dw[offsetof(struct amap_beiscsi_offload_params,
		      max_send_data_segment_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      first_burst_length, pwrb,
		      params->dw[offsetof(struct amap_beiscsi_offload_params,
		      first_burst_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      max_recv_dataseg_len, pwrb,
		      params->dw[offsetof(struct amap_beiscsi_offload_params,
		      max_recv_data_segment_length) / 32]);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      max_cxns, pwrb, BEISCSI_MAX_CXNS);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      erl) / 32] & OFFLD_PARAMS_ERL));
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      ir2t, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      data_seq_inorder,
		      pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      data_seq_inorder) / 32] &
		      OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
		      pdu_seq_inorder,
		      pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      pdu_seq_inorder) / 32] &
		      OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,
		      pwrb,
		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      max_r2t) / 32] &
		      OFFLD_PARAMS_MAX_R2T) >> 8);
	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,
		      pwrb,
		     (params->dw[offsetof(struct amap_beiscsi_offload_params,
		      exp_statsn) / 32] + 1));
}

/**
 * beiscsi_logout_fw_sess()- Firmware Session Logout
 * @phba: Device priv structure instance
 * @fw_sess_handle: FW session handle
 *
 * Logout from the FW established sessions.
 * returns
 *  Success: 0
 *  Failure: Non-Zero Value
 *
 */
int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
		uint32_t fw_sess_handle)
{
	struct be_ctrl_info *ctrl = &phba->ctrl;
	struct be_mcc_wrb *wrb;
	struct be_cmd_req_logout_fw_sess *req;
	struct be_cmd_resp_logout_fw_sess *resp;
	unsigned int tag;
	int rc;

	beiscsi_log(phba, KERN_INFO,
		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
		    "BG_%d : In bescsi_logout_fwboot_sess\n");

	mutex_lock(&ctrl->mbox_lock);
	tag = alloc_mcc_tag(phba);
	if (!tag) {
		mutex_unlock(&ctrl->mbox_lock);
		beiscsi_log(phba, KERN_INFO,
			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
			    "BG_%d : MBX Tag Failure\n");
		return -EINVAL;
	}

	wrb = wrb_from_mccq(phba);
	req = embedded_payload(wrb);
	wrb->tag0 |= tag;
	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
			   OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
			   sizeof(struct be_cmd_req_logout_fw_sess));

	/* Set the session handle */
	req->session_handle = fw_sess_handle;
	be_mcc_notify(phba, tag);
	mutex_unlock(&ctrl->mbox_lock);

	rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
	if (rc) {
		beiscsi_log(phba, KERN_ERR,
			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
			    "BG_%d : MBX CMD FW_SESSION_LOGOUT_TARGET Failed\n");
		return -EBUSY;
	}

	resp = embedded_payload(wrb);
	if (resp->session_status !=
		BEISCSI_MGMT_SESSION_CLOSE) {
		beiscsi_log(phba, KERN_ERR,
			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
			    "BG_%d : FW_SESSION_LOGOUT_TARGET resp : 0x%x\n",
			    resp->session_status);
		rc = -EINVAL;
	}

	return rc;
}