aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/lpfc/lpfc_mbox.c
blob: eb627724417e14432ca122d2e29feed1014ce04f (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
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2015 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.emulex.com                                                  *
 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
 *******************************************************************/

#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>

#include <scsi/scsi_device.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi.h>
#include <scsi/fc/fc_fs.h>

#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_compat.h"

/**
 * lpfc_dump_static_vport - Dump HBA's static vport information.
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @offset: offset for dumping vport info.
 *
 * The dump mailbox command provides a method for the device driver to obtain
 * various types of information from the HBA device.
 *
 * This routine prepares the mailbox command for dumping list of static
 * vports to be created.
 **/
int
lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
		uint16_t offset)
{
	MAILBOX_t *mb;
	struct lpfc_dmabuf *mp;

	mb = &pmb->u.mb;

	/* Setup to dump vport info region */
	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_DUMP_MEMORY;
	mb->un.varDmp.type = DMP_NV_PARAMS;
	mb->un.varDmp.entry_index = offset;
	mb->un.varDmp.region_id = DMP_REGION_VPORT;
	mb->mbxOwner = OWN_HOST;

	/* For SLI3 HBAs data is embedded in mailbox */
	if (phba->sli_rev != LPFC_SLI_REV4) {
		mb->un.varDmp.cv = 1;
		mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
		return 0;
	}

	/* For SLI4 HBAs driver need to allocate memory */
	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (mp)
		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);

	if (!mp || !mp->virt) {
		kfree(mp);
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
			"2605 lpfc_dump_static_vport: memory"
			" allocation failed\n");
		return 1;
	}
	memset(mp->virt, 0, LPFC_BPL_SIZE);
	INIT_LIST_HEAD(&mp->list);
	/* save address for completion */
	pmb->context1 = (uint8_t *)mp;
	mb->un.varWords[3] = putPaddrLow(mp->phys);
	mb->un.varWords[4] = putPaddrHigh(mp->phys);
	mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);

	return 0;
}

/**
 * lpfc_down_link - Bring down HBAs link.
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * This routine prepares a mailbox command to bring down HBA link.
 **/
void
lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb;
	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
	mb = &pmb->u.mb;
	mb->mbxCommand = MBX_DOWN_LINK;
	mb->mbxOwner = OWN_HOST;
}

/**
 * lpfc_dump_mem - Prepare a mailbox command for reading a region.
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @offset: offset into the region.
 * @region_id: config region id.
 *
 * The dump mailbox command provides a method for the device driver to obtain
 * various types of information from the HBA device.
 *
 * This routine prepares the mailbox command for dumping HBA's config region.
 **/
void
lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
		uint16_t region_id)
{
	MAILBOX_t *mb;
	void *ctx;

	mb = &pmb->u.mb;
	ctx = pmb->context2;

	/* Setup to dump VPD region */
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_DUMP_MEMORY;
	mb->un.varDmp.cv = 1;
	mb->un.varDmp.type = DMP_NV_PARAMS;
	mb->un.varDmp.entry_index = offset;
	mb->un.varDmp.region_id = region_id;
	mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
	mb->un.varDmp.co = 0;
	mb->un.varDmp.resp_offset = 0;
	pmb->context2 = ctx;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * This function create a dump memory mailbox command to dump wake up
 * parameters.
 */
void
lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb;
	void *ctx;

	mb = &pmb->u.mb;
	/* Save context so that we can restore after memset */
	ctx = pmb->context2;

	/* Setup to dump VPD region */
	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_DUMP_MEMORY;
	mb->mbxOwner = OWN_HOST;
	mb->un.varDmp.cv = 1;
	mb->un.varDmp.type = DMP_NV_PARAMS;
	if (phba->sli_rev < LPFC_SLI_REV4)
		mb->un.varDmp.entry_index = 0;
	mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
	mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
	mb->un.varDmp.co = 0;
	mb->un.varDmp.resp_offset = 0;
	pmb->context2 = ctx;
	return;
}

/**
 * lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The read NVRAM mailbox command returns the HBA's non-volatile parameters
 * that are used as defaults when the Fibre Channel link is brought on-line.
 *
 * This routine prepares the mailbox command for reading information stored
 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
 **/
void
lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_READ_NV;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_config_async - Prepare a mailbox command for enabling HBA async event
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @ring: ring number for the asynchronous event to be configured.
 *
 * The asynchronous event enable mailbox command is used to enable the
 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
 * specifies the default ring to which events are posted.
 *
 * This routine prepares the mailbox command for enabling HBA asynchronous
 * event support on a IOCB ring.
 **/
void
lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
		uint32_t ring)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
	mb->un.varCfgAsyncEvent.ring = ring;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_heart_beat - Prepare a mailbox command for heart beat
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The heart beat mailbox command is used to detect an unresponsive HBA, which
 * is defined as any device where no error attention is sent and both mailbox
 * and rings are not processed.
 *
 * This routine prepares the mailbox command for issuing a heart beat in the
 * form of mailbox command to the HBA. The timely completion of the heart
 * beat mailbox command indicates the health of the HBA.
 **/
void
lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_HEARTBEAT;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_read_topology - Prepare a mailbox command for reading HBA topology
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @mp: DMA buffer memory for reading the link attention information into.
 *
 * The read topology mailbox command is issued to read the link topology
 * information indicated by the HBA port when the Link Event bit of the Host
 * Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link
 * Attention ACQE is received from the port (For SLI-4). A Link Event
 * Attention occurs based on an exception detected at the Fibre Channel link
 * interface.
 *
 * This routine prepares the mailbox command for reading HBA link topology
 * information. A DMA memory has been set aside and address passed to the
 * HBA through @mp for the HBA to DMA link attention information into the
 * memory as part of the execution of the mailbox command.
 *
 * Return codes
 *    0 - Success (currently always return 0)
 **/
int
lpfc_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
		   struct lpfc_dmabuf *mp)
{
	MAILBOX_t *mb;
	struct lpfc_sli *psli;

	psli = &phba->sli;
	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	INIT_LIST_HEAD(&mp->list);
	mb->mbxCommand = MBX_READ_TOPOLOGY;
	mb->un.varReadTop.lilpBde64.tus.f.bdeSize = LPFC_ALPA_MAP_SIZE;
	mb->un.varReadTop.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
	mb->un.varReadTop.lilpBde64.addrLow = putPaddrLow(mp->phys);

	/* Save address for later completion and set the owner to host so that
	 * the FW knows this mailbox is available for processing.
	 */
	pmb->context1 = (uint8_t *)mp;
	mb->mbxOwner = OWN_HOST;
	return (0);
}

/**
 * lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The clear link attention mailbox command is issued to clear the link event
 * attention condition indicated by the Link Event bit of the Host Attention
 * (HSTATT) register. The link event attention condition is cleared only if
 * the event tag specified matches that of the current link event counter.
 * The current event tag is read using the read link attention event mailbox
 * command.
 *
 * This routine prepares the mailbox command for clearing HBA link attention
 * information.
 **/
void
lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->un.varClearLA.eventTag = phba->fc_eventTag;
	mb->mbxCommand = MBX_CLEAR_LA;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_config_link - Prepare a mailbox command for configuring link on a HBA
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The configure link mailbox command is used before the initialize link
 * mailbox command to override default value and to configure link-oriented
 * parameters such as DID address and various timers. Typically, this
 * command would be used after an F_Port login to set the returned DID address
 * and the fabric timeout values. This command is not valid before a configure
 * port command has configured the HBA port.
 *
 * This routine prepares the mailbox command for configuring link on a HBA.
 **/
void
lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	struct lpfc_vport  *vport = phba->pport;
	MAILBOX_t *mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	/* NEW_FEATURE
	 * SLI-2, Coalescing Response Feature.
	 */
	if (phba->cfg_cr_delay && (phba->sli_rev < LPFC_SLI_REV4)) {
		mb->un.varCfgLnk.cr = 1;
		mb->un.varCfgLnk.ci = 1;
		mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
		mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
	}

	mb->un.varCfgLnk.myId = vport->fc_myDID;
	mb->un.varCfgLnk.edtov = phba->fc_edtov;
	mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
	mb->un.varCfgLnk.ratov = phba->fc_ratov;
	mb->un.varCfgLnk.rttov = phba->fc_rttov;
	mb->un.varCfgLnk.altov = phba->fc_altov;
	mb->un.varCfgLnk.crtov = phba->fc_crtov;
	mb->un.varCfgLnk.citov = phba->fc_citov;

	if (phba->cfg_ack0 && (phba->sli_rev < LPFC_SLI_REV4))
		mb->un.varCfgLnk.ack0_enable = 1;

	mb->mbxCommand = MBX_CONFIG_LINK;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_config_msi - Prepare a mailbox command for configuring msi-x
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The configure MSI-X mailbox command is used to configure the HBA's SLI-3
 * MSI-X multi-message interrupt vector association to interrupt attention
 * conditions.
 *
 * Return codes
 *    0 - Success
 *    -EINVAL - Failure
 **/
int
lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;
	uint32_t attentionConditions[2];

	/* Sanity check */
	if (phba->cfg_use_msi != 2) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0475 Not configured for supporting MSI-X "
				"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
		return -EINVAL;
	}

	if (phba->sli_rev < 3) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0476 HBA not supporting SLI-3 or later "
				"SLI Revision: 0x%x\n", phba->sli_rev);
		return -EINVAL;
	}

	/* Clear mailbox command fields */
	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));

	/*
	 * SLI-3, Message Signaled Interrupt Fearure.
	 */

	/* Multi-message attention configuration */
	attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
				  HA_LATT | HA_MBATT);
	attentionConditions[1] = 0;

	mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
	mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];

	/*
	 * Set up message number to HA bit association
	 */
#ifdef __BIG_ENDIAN_BITFIELD
	/* RA0 (FCP Ring) */
	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
	/* RA1 (Other Protocol Extra Ring) */
	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
#else   /*  __LITTLE_ENDIAN_BITFIELD */
	/* RA0 (FCP Ring) */
	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
	/* RA1 (Other Protocol Extra Ring) */
	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
#endif
	/* Multi-message interrupt autoclear configuration*/
	mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
	mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];

	/* For now, HBA autoclear does not work reliably, disable it */
	mb->un.varCfgMSI.autoClearHA[0] = 0;
	mb->un.varCfgMSI.autoClearHA[1] = 0;

	/* Set command and owner bit */
	mb->mbxCommand = MBX_CONFIG_MSI;
	mb->mbxOwner = OWN_HOST;

	return 0;
}

/**
 * lpfc_init_link - Prepare a mailbox command for initialize link on a HBA
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @topology: the link topology for the link to be initialized to.
 * @linkspeed: the link speed for the link to be initialized to.
 *
 * The initialize link mailbox command is used to initialize the Fibre
 * Channel link. This command must follow a configure port command that
 * establishes the mode of operation.
 *
 * This routine prepares the mailbox command for initializing link on a HBA
 * with the specified link topology and speed.
 **/
void
lpfc_init_link(struct lpfc_hba * phba,
	       LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
{
	lpfc_vpd_t *vpd;
	struct lpfc_sli *psli;
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	psli = &phba->sli;
	switch (topology) {
	case FLAGS_TOPOLOGY_MODE_LOOP_PT:
		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
		break;
	case FLAGS_TOPOLOGY_MODE_PT_PT:
		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
		break;
	case FLAGS_TOPOLOGY_MODE_LOOP:
		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
		break;
	case FLAGS_TOPOLOGY_MODE_PT_LOOP:
		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
		break;
	case FLAGS_LOCAL_LB:
		mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
		break;
	}

	/* Enable asynchronous ABTS responses from firmware */
	mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;

	/* NEW_FEATURE
	 * Setting up the link speed
	 */
	vpd = &phba->vpd;
	if (vpd->rev.feaLevelHigh >= 0x02){
		switch(linkspeed){
		case LPFC_USER_LINK_SPEED_1G:
			mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_1G;
			break;
		case LPFC_USER_LINK_SPEED_2G:
			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_2G;
			break;
		case LPFC_USER_LINK_SPEED_4G:
			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_4G;
			break;
		case LPFC_USER_LINK_SPEED_8G:
			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_8G;
			break;
		case LPFC_USER_LINK_SPEED_10G:
			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_10G;
			break;
		case LPFC_USER_LINK_SPEED_16G:
			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
			mb->un.varInitLnk.link_speed = LINK_SPEED_16G;
			break;
		case LPFC_USER_LINK_SPEED_AUTO:
		default:
			mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
			break;
		}

	}
	else
		mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;

	mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
	mb->mbxOwner = OWN_HOST;
	mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
	return;
}

/**
 * lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @vpi: virtual N_Port identifier.
 *
 * The read service parameter mailbox command is used to read the HBA port
 * service parameters. The service parameters are read into the buffer
 * specified directly by a BDE in the mailbox command. These service
 * parameters may then be used to build the payload of an N_Port/F_POrt
 * login request and reply (LOGI/ACC).
 *
 * This routine prepares the mailbox command for reading HBA port service
 * parameters. The DMA memory is allocated in this function and the addresses
 * are populated into the mailbox command for the HBA to DMA the service
 * parameters into.
 *
 * Return codes
 *    0 - Success
 *    1 - DMA memory allocation failed
 **/
int
lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
{
	struct lpfc_dmabuf *mp;
	MAILBOX_t *mb;
	struct lpfc_sli *psli;

	psli = &phba->sli;
	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->mbxOwner = OWN_HOST;

	/* Get a buffer to hold the HBAs Service Parameters */

	mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
	if (mp)
		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp || !mp->virt) {
		kfree(mp);
		mb->mbxCommand = MBX_READ_SPARM64;
		/* READ_SPARAM: no buffers */
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
			        "0301 READ_SPARAM: no buffers\n");
		return (1);
	}
	INIT_LIST_HEAD(&mp->list);
	mb->mbxCommand = MBX_READ_SPARM64;
	mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
	mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
	mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
	if (phba->sli_rev >= LPFC_SLI_REV3)
		mb->un.varRdSparm.vpi = phba->vpi_ids[vpi];

	/* save address for completion */
	pmb->context1 = mp;

	return (0);
}

/**
 * lpfc_unreg_did - Prepare a mailbox command for unregistering DID
 * @phba: pointer to lpfc hba data structure.
 * @vpi: virtual N_Port identifier.
 * @did: remote port identifier.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The unregister DID mailbox command is used to unregister an N_Port/F_Port
 * login for an unknown RPI by specifying the DID of a remote port. This
 * command frees an RPI context in the HBA port. This has the effect of
 * performing an implicit N_Port/F_Port logout.
 *
 * This routine prepares the mailbox command for unregistering a remote
 * N_Port/F_Port (DID) login.
 **/
void
lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
	       LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->un.varUnregDID.did = did;
	mb->un.varUnregDID.vpi = vpi;
	if ((vpi != 0xffff) &&
	    (phba->sli_rev == LPFC_SLI_REV4))
		mb->un.varUnregDID.vpi = phba->vpi_ids[vpi];

	mb->mbxCommand = MBX_UNREG_D_ID;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_read_config - Prepare a mailbox command for reading HBA configuration
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The read configuration mailbox command is used to read the HBA port
 * configuration parameters. This mailbox command provides a method for
 * seeing any parameters that may have changed via various configuration
 * mailbox commands.
 *
 * This routine prepares the mailbox command for reading out HBA configuration
 * parameters.
 **/
void
lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->mbxCommand = MBX_READ_CONFIG;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The read link status mailbox command is used to read the link status from
 * the HBA. Link status includes all link-related error counters. These
 * counters are maintained by the HBA and originated in the link hardware
 * unit. Note that all of these counters wrap.
 *
 * This routine prepares the mailbox command for reading out HBA link status.
 **/
void
lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->mbxCommand = MBX_READ_LNK_STAT;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_reg_rpi - Prepare a mailbox command for registering remote login
 * @phba: pointer to lpfc hba data structure.
 * @vpi: virtual N_Port identifier.
 * @did: remote port identifier.
 * @param: pointer to memory holding the server parameters.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 * @rpi: the rpi to use in the registration (usually only used for SLI4.
 *
 * The registration login mailbox command is used to register an N_Port or
 * F_Port login. This registration allows the HBA to cache the remote N_Port
 * service parameters internally and thereby make the appropriate FC-2
 * decisions. The remote port service parameters are handed off by the driver
 * to the HBA using a descriptor entry that directly identifies a buffer in
 * host memory. In exchange, the HBA returns an RPI identifier.
 *
 * This routine prepares the mailbox command for registering remote port login.
 * The function allocates DMA buffer for passing the service parameters to the
 * HBA with the mailbox command.
 *
 * Return codes
 *    0 - Success
 *    1 - DMA memory allocation failed
 **/
int
lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
	     uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
{
	MAILBOX_t *mb = &pmb->u.mb;
	uint8_t *sparam;
	struct lpfc_dmabuf *mp;

	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->un.varRegLogin.rpi = 0;
	if (phba->sli_rev == LPFC_SLI_REV4)
		mb->un.varRegLogin.rpi = phba->sli4_hba.rpi_ids[rpi];
	if (phba->sli_rev >= LPFC_SLI_REV3)
		mb->un.varRegLogin.vpi = phba->vpi_ids[vpi];
	mb->un.varRegLogin.did = did;
	mb->mbxOwner = OWN_HOST;
	/* Get a buffer to hold NPorts Service Parameters */
	mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
	if (mp)
		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp || !mp->virt) {
		kfree(mp);
		mb->mbxCommand = MBX_REG_LOGIN64;
		/* REG_LOGIN: no buffers */
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
				"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
				"rpi x%x\n", vpi, did, rpi);
		return 1;
	}
	INIT_LIST_HEAD(&mp->list);
	sparam = mp->virt;

	/* Copy param's into a new buffer */
	memcpy(sparam, param, sizeof (struct serv_parm));

	/* save address for completion */
	pmb->context1 = (uint8_t *) mp;

	mb->mbxCommand = MBX_REG_LOGIN64;
	mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
	mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
	mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);

	return 0;
}

/**
 * lpfc_unreg_login - Prepare a mailbox command for unregistering remote login
 * @phba: pointer to lpfc hba data structure.
 * @vpi: virtual N_Port identifier.
 * @rpi: remote port identifier
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The unregistration login mailbox command is used to unregister an N_Port
 * or F_Port login. This command frees an RPI context in the HBA. It has the
 * effect of performing an implicit N_Port/F_Port logout.
 *
 * This routine prepares the mailbox command for unregistering remote port
 * login.
 *
 * For SLI4 ports, the rpi passed to this function must be the physical
 * rpi value, not the logical index.
 **/
void
lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
		 LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb;

	mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->un.varUnregLogin.rpi = rpi;
	mb->un.varUnregLogin.rsvd1 = 0;
	if (phba->sli_rev >= LPFC_SLI_REV3)
		mb->un.varUnregLogin.vpi = phba->vpi_ids[vpi];

	mb->mbxCommand = MBX_UNREG_LOGIN;
	mb->mbxOwner = OWN_HOST;

	return;
}

/**
 * lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
 * @vport: pointer to a vport object.
 *
 * This routine sends mailbox command to unregister all active RPIs for
 * a vport.
 **/
void
lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
{
	struct lpfc_hba  *phba  = vport->phba;
	LPFC_MBOXQ_t     *mbox;
	int rc;

	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (mbox) {
		/*
		 * For SLI4 functions, the rpi field is overloaded for
		 * the vport context unreg all.  This routine passes
		 * 0 for the rpi field in lpfc_unreg_login for compatibility
		 * with SLI3 and then overrides the rpi field with the
		 * expected value for SLI4.
		 */
		lpfc_unreg_login(phba, vport->vpi, phba->vpi_ids[vport->vpi],
				 mbox);
		mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
		mbox->vport = vport;
		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
		mbox->context1 = NULL;
		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
		if (rc == MBX_NOT_FINISHED)
			mempool_free(mbox, phba->mbox_mem_pool);
	}
}

/**
 * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
 * @phba: pointer to lpfc hba data structure.
 * @vpi: virtual N_Port identifier.
 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The registration vport identifier mailbox command is used to activate a
 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
 * N_Port_ID against the information in the selected virtual N_Port context
 * block and marks it active to allow normal processing of IOCB commands and
 * received unsolicited exchanges.
 *
 * This routine prepares the mailbox command for registering a virtual N_Port.
 **/
void
lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;
	struct lpfc_hba *phba = vport->phba;

	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	/*
	 * Set the re-reg VPI bit for f/w to update the MAC address.
	 */
	if ((phba->sli_rev == LPFC_SLI_REV4) &&
		!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI))
		mb->un.varRegVpi.upd = 1;

	mb->un.varRegVpi.vpi = phba->vpi_ids[vport->vpi];
	mb->un.varRegVpi.sid = vport->fc_myDID;
	if (phba->sli_rev == LPFC_SLI_REV4)
		mb->un.varRegVpi.vfi = phba->sli4_hba.vfi_ids[vport->vfi];
	else
		mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
	memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname,
	       sizeof(struct lpfc_name));
	mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]);
	mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]);

	mb->mbxCommand = MBX_REG_VPI;
	mb->mbxOwner = OWN_HOST;
	return;

}

/**
 * lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id
 * @phba: pointer to lpfc hba data structure.
 * @vpi: virtual N_Port identifier.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The unregistration vport identifier mailbox command is used to inactivate
 * a virtual N_Port. The driver must have logged out and unregistered all
 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will
 * unregisters any default RPIs associated with the specified vpi, aborting
 * any active exchanges. The HBA will post the mailbox response after making
 * the virtual N_Port inactive.
 *
 * This routine prepares the mailbox command for unregistering a virtual
 * N_Port.
 **/
void
lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	if (phba->sli_rev == LPFC_SLI_REV3)
		mb->un.varUnregVpi.vpi = phba->vpi_ids[vpi];
	else if (phba->sli_rev >= LPFC_SLI_REV4)
		mb->un.varUnregVpi.sli4_vpi = phba->vpi_ids[vpi];

	mb->mbxCommand = MBX_UNREG_VPI;
	mb->mbxOwner = OWN_HOST;
	return;

}

/**
 * lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB)
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine sets up and initializes the IOCB rings in the Port Control
 * Block (PCB).
 **/
static void
lpfc_config_pcb_setup(struct lpfc_hba * phba)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	PCB_t *pcbp = phba->pcb;
	dma_addr_t pdma_addr;
	uint32_t offset;
	uint32_t iocbCnt = 0;
	int i;

	pcbp->maxRing = (psli->num_rings - 1);

	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];

		pring->sli.sli3.sizeCiocb =
			phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
							SLI2_IOCB_CMD_SIZE;
		pring->sli.sli3.sizeRiocb =
			phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE :
							SLI2_IOCB_RSP_SIZE;
		/* A ring MUST have both cmd and rsp entries defined to be
		   valid */
		if ((pring->sli.sli3.numCiocb == 0) ||
			(pring->sli.sli3.numRiocb == 0)) {
			pcbp->rdsc[i].cmdEntries = 0;
			pcbp->rdsc[i].rspEntries = 0;
			pcbp->rdsc[i].cmdAddrHigh = 0;
			pcbp->rdsc[i].rspAddrHigh = 0;
			pcbp->rdsc[i].cmdAddrLow = 0;
			pcbp->rdsc[i].rspAddrLow = 0;
			pring->sli.sli3.cmdringaddr = NULL;
			pring->sli.sli3.rspringaddr = NULL;
			continue;
		}
		/* Command ring setup for ring */
		pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
		pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;

		offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
			 (uint8_t *) phba->slim2p.virt;
		pdma_addr = phba->slim2p.phys + offset;
		pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
		pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
		iocbCnt += pring->sli.sli3.numCiocb;

		/* Response ring setup for ring */
		pring->sli.sli3.rspringaddr = (void *) &phba->IOCBs[iocbCnt];

		pcbp->rdsc[i].rspEntries = pring->sli.sli3.numRiocb;
		offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
			 (uint8_t *)phba->slim2p.virt;
		pdma_addr = phba->slim2p.phys + offset;
		pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
		pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
		iocbCnt += pring->sli.sli3.numRiocb;
	}
}

/**
 * lpfc_read_rev - Prepare a mailbox command for reading HBA revision
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The read revision mailbox command is used to read the revision levels of
 * the HBA components. These components include hardware units, resident
 * firmware, and available firmware. HBAs that supports SLI-3 mode of
 * operation provide different response information depending on the version
 * requested by the driver.
 *
 * This routine prepares the mailbox command for reading HBA revision
 * information.
 **/
void
lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;
	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	mb->un.varRdRev.cv = 1;
	mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
	mb->mbxCommand = MBX_READ_REV;
	mb->mbxOwner = OWN_HOST;
	return;
}

void
lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;
	struct lpfc_mqe *mqe;

	switch (mb->mbxCommand) {
	case  MBX_READ_REV:
		 mqe = &pmb->u.mqe;
		lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name,
				 mqe->un.read_rev.fw_name, 16);
		lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name,
				 mqe->un.read_rev.ulp_fw_name, 16);
		break;
	default:
		break;
	}
	return;
}

/**
 * lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2
 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
 * @hbq_desc: pointer to the HBQ selection profile descriptor.
 *
 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
 * the Sequence Length Test using the fields in the Selection Profile 2
 * extension in words 20:31.
 **/
static void
lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
			struct lpfc_hbq_init  *hbq_desc)
{
	hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
	hbqmb->profiles.profile2.maxlen     = hbq_desc->maxlen;
	hbqmb->profiles.profile2.seqlenoff  = hbq_desc->seqlenoff;
}

/**
 * lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3
 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
 * @hbq_desc: pointer to the HBQ selection profile descriptor.
 *
 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
 * the Sequence Length Test and Byte Field Test using the fields in the
 * Selection Profile 3 extension in words 20:31.
 **/
static void
lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
			struct lpfc_hbq_init  *hbq_desc)
{
	hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
	hbqmb->profiles.profile3.maxlen     = hbq_desc->maxlen;
	hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
	hbqmb->profiles.profile3.seqlenoff  = hbq_desc->seqlenoff;
	memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
	       sizeof(hbqmb->profiles.profile3.cmdmatch));
}

/**
 * lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5
 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
 * @hbq_desc: pointer to the HBQ selection profile descriptor.
 *
 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
 * HBA tests the initial frame of an incoming sequence using the frame's
 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
 * and Byte Field Test using the fields in the Selection Profile 5 extension
 * words 20:31.
 **/
static void
lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
			struct lpfc_hbq_init  *hbq_desc)
{
	hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
	hbqmb->profiles.profile5.maxlen     = hbq_desc->maxlen;
	hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
	hbqmb->profiles.profile5.seqlenoff  = hbq_desc->seqlenoff;
	memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
	       sizeof(hbqmb->profiles.profile5.cmdmatch));
}

/**
 * lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ
 * @phba: pointer to lpfc hba data structure.
 * @id: HBQ identifier.
 * @hbq_desc: pointer to the HBA descriptor data structure.
 * @hbq_entry_index: index of the HBQ entry data structures.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure
 * an HBQ. The configuration binds events that require buffers to a particular
 * ring and HBQ based on a selection profile.
 *
 * This routine prepares the mailbox command for configuring an HBQ.
 **/
void
lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
		 struct lpfc_hbq_init *hbq_desc,
		uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
{
	int i;
	MAILBOX_t *mb = &pmb->u.mb;
	struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;

	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
	hbqmb->hbqId = id;
	hbqmb->entry_count = hbq_desc->entry_count;   /* # entries in HBQ */
	hbqmb->recvNotify = hbq_desc->rn;             /* Receive
						       * Notification */
	hbqmb->numMask    = hbq_desc->mask_count;     /* # R_CTL/TYPE masks
						       * # in words 0-19 */
	hbqmb->profile    = hbq_desc->profile;	      /* Selection profile:
						       * 0 = all,
						       * 7 = logentry */
	hbqmb->ringMask   = hbq_desc->ring_mask;      /* Binds HBQ to a ring
						       * e.g. Ring0=b0001,
						       * ring2=b0100 */
	hbqmb->headerLen  = hbq_desc->headerLen;      /* 0 if not profile 4
						       * or 5 */
	hbqmb->logEntry   = hbq_desc->logEntry;       /* Set to 1 if this
						       * HBQ will be used
						       * for LogEntry
						       * buffers */
	hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
		hbq_entry_index * sizeof(struct lpfc_hbq_entry);
	hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);

	mb->mbxCommand = MBX_CONFIG_HBQ;
	mb->mbxOwner = OWN_HOST;

				/* Copy info for profiles 2,3,5. Other
				 * profiles this area is reserved
				 */
	if (hbq_desc->profile == 2)
		lpfc_build_hbq_profile2(hbqmb, hbq_desc);
	else if (hbq_desc->profile == 3)
		lpfc_build_hbq_profile3(hbqmb, hbq_desc);
	else if (hbq_desc->profile == 5)
		lpfc_build_hbq_profile5(hbqmb, hbq_desc);

	/* Return if no rctl / type masks for this HBQ */
	if (!hbq_desc->mask_count)
		return;

	/* Otherwise we setup specific rctl / type masks for this HBQ */
	for (i = 0; i < hbq_desc->mask_count; i++) {
		hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
		hbqmb->hbqMasks[i].tmask  = hbq_desc->hbqMasks[i].tmask;
		hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
		hbqmb->hbqMasks[i].rctlmask  = hbq_desc->hbqMasks[i].rctlmask;
	}

	return;
}

/**
 * lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring
 * @phba: pointer to lpfc hba data structure.
 * @ring:
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The configure ring mailbox command is used to configure an IOCB ring. This
 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
 * ring. This is used to map incoming sequences to a particular ring whose
 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
 * attempt to configure a ring whose number is greater than the number
 * specified in the Port Control Block (PCB). It is an error to issue the
 * configure ring command more than once with the same ring number. The HBA
 * returns an error if the driver attempts this.
 *
 * This routine prepares the mailbox command for configuring IOCB ring.
 **/
void
lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
{
	int i;
	MAILBOX_t *mb = &pmb->u.mb;
	struct lpfc_sli *psli;
	struct lpfc_sli_ring *pring;

	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));

	mb->un.varCfgRing.ring = ring;
	mb->un.varCfgRing.maxOrigXchg = 0;
	mb->un.varCfgRing.maxRespXchg = 0;
	mb->un.varCfgRing.recvNotify = 1;

	psli = &phba->sli;
	pring = &psli->ring[ring];
	mb->un.varCfgRing.numMask = pring->num_mask;
	mb->mbxCommand = MBX_CONFIG_RING;
	mb->mbxOwner = OWN_HOST;

	/* Is this ring configured for a specific profile */
	if (pring->prt[0].profile) {
		mb->un.varCfgRing.profile = pring->prt[0].profile;
		return;
	}

	/* Otherwise we setup specific rctl / type masks for this ring */
	for (i = 0; i < pring->num_mask; i++) {
		mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
		if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ)
			mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
		else
			mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
		mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
		mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
	}

	return;
}

/**
 * lpfc_config_port - Prepare a mailbox command for configuring port
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The configure port mailbox command is used to identify the Port Control
 * Block (PCB) in the driver memory. After this command is issued, the
 * driver must not access the mailbox in the HBA without first resetting
 * the HBA. The HBA may copy the PCB information to internal storage for
 * subsequent use; the driver can not change the PCB information unless it
 * resets the HBA.
 *
 * This routine prepares the mailbox command for configuring port.
 **/
void
lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
	MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
	MAILBOX_t *mb = &pmb->u.mb;
	dma_addr_t pdma_addr;
	uint32_t bar_low, bar_high;
	size_t offset;
	struct lpfc_hgp hgp;
	int i;
	uint32_t pgp_offset;

	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_CONFIG_PORT;
	mb->mbxOwner = OWN_HOST;

	mb->un.varCfgPort.pcbLen = sizeof(PCB_t);

	offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
	pdma_addr = phba->slim2p.phys + offset;
	mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
	mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);

	/* Always Host Group Pointer is in SLIM */
	mb->un.varCfgPort.hps = 1;

	/* If HBA supports SLI=3 ask for it */

	if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
		if (phba->cfg_enable_bg)
			mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
		if (phba->cfg_enable_dss)
			mb->un.varCfgPort.cdss = 1; /* Configure Security */
		mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
		mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
		mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
		if (phba->max_vpi && phba->cfg_enable_npiv &&
		    phba->vpd.sli3Feat.cmv) {
			mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
			mb->un.varCfgPort.cmv = 1;
		} else
			mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
	} else
		phba->sli_rev = LPFC_SLI_REV2;
	mb->un.varCfgPort.sli_mode = phba->sli_rev;

	/* If this is an SLI3 port, configure async status notification. */
	if (phba->sli_rev == LPFC_SLI_REV3)
		mb->un.varCfgPort.casabt = 1;

	/* Now setup pcb */
	phba->pcb->type = TYPE_NATIVE_SLI2;
	phba->pcb->feature = FEATURE_INITIAL_SLI2;

	/* Setup Mailbox pointers */
	phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE;
	offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
	pdma_addr = phba->slim2p.phys + offset;
	phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
	phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);

	/*
	 * Setup Host Group ring pointer.
	 *
	 * For efficiency reasons, the ring get/put pointers can be
	 * placed in adapter memory (SLIM) rather than in host memory.
	 * This allows firmware to avoid PCI reads/writes when updating
	 * and checking pointers.
	 *
	 * The firmware recognizes the use of SLIM memory by comparing
	 * the address of the get/put pointers structure with that of
	 * the SLIM BAR (BAR0).
	 *
	 * Caution: be sure to use the PCI config space value of BAR0/BAR1
	 * (the hardware's view of the base address), not the OS's
	 * value of pci_resource_start() as the OS value may be a cookie
	 * for ioremap/iomap.
	 */


	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);

	/*
	 * Set up HGP - Port Memory
	 *
	 * The port expects the host get/put pointers to reside in memory
	 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
	 * area of SLIM.  In SLI-2 mode, there's an additional 16 reserved
	 * words (0x40 bytes).  This area is not reserved if HBQs are
	 * configured in SLI-3.
	 *
	 * CR0Put    - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
	 * RR0Get                      0xc4              0x84
	 * CR1Put                      0xc8              0x88
	 * RR1Get                      0xcc              0x8c
	 * CR2Put                      0xd0              0x90
	 * RR2Get                      0xd4              0x94
	 * CR3Put                      0xd8              0x98
	 * RR3Get                      0xdc              0x9c
	 *
	 * Reserved                    0xa0-0xbf
	 *    If HBQs configured:
	 *                         HBQ 0 Put ptr  0xc0
	 *                         HBQ 1 Put ptr  0xc4
	 *                         HBQ 2 Put ptr  0xc8
	 *                         ......
	 *                         HBQ(M-1)Put Pointer 0xc0+(M-1)*4
	 *
	 */

	if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) {
		phba->host_gp = &phba->mbox->us.s2.host[0];
		phba->hbq_put = NULL;
		offset = (uint8_t *)&phba->mbox->us.s2.host -
			(uint8_t *)phba->slim2p.virt;
		pdma_addr = phba->slim2p.phys + offset;
		phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr);
		phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr);
	} else {
		/* Always Host Group Pointer is in SLIM */
		mb->un.varCfgPort.hps = 1;

		if (phba->sli_rev == 3) {
			phba->host_gp = &mb_slim->us.s3.host[0];
			phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
		} else {
			phba->host_gp = &mb_slim->us.s2.host[0];
			phba->hbq_put = NULL;
		}

		/* mask off BAR0's flag bits 0 - 3 */
		phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
			(void __iomem *)phba->host_gp -
			(void __iomem *)phba->MBslimaddr;
		if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
			phba->pcb->hgpAddrHigh = bar_high;
		else
			phba->pcb->hgpAddrHigh = 0;
		/* write HGP data to SLIM at the required longword offset */
		memset(&hgp, 0, sizeof(struct lpfc_hgp));

		for (i = 0; i < phba->sli.num_rings; i++) {
			lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
				    sizeof(*phba->host_gp));
		}
	}

	/* Setup Port Group offset */
	if (phba->sli_rev == 3)
		pgp_offset = offsetof(struct lpfc_sli2_slim,
				      mbx.us.s3_pgp.port);
	else
		pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
	pdma_addr = phba->slim2p.phys + pgp_offset;
	phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
	phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);

	/* Use callback routine to setp rings in the pcb */
	lpfc_config_pcb_setup(phba);

	/* special handling for LC HBAs */
	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
		uint32_t hbainit[5];

		lpfc_hba_init(phba, hbainit);

		memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
	}

	/* Swap PCB if needed */
	lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
}

/**
 * lpfc_kill_board - Prepare a mailbox command for killing board
 * @phba: pointer to lpfc hba data structure.
 * @pmb: pointer to the driver internal queue element for mailbox command.
 *
 * The kill board mailbox command is used to tell firmware to perform a
 * graceful shutdown of a channel on a specified board to prepare for reset.
 * When the kill board mailbox command is received, the ER3 bit is set to 1
 * in the Host Status register and the ER Attention bit is set to 1 in the
 * Host Attention register of the HBA function that received the kill board
 * command.
 *
 * This routine prepares the mailbox command for killing the board in
 * preparation for a graceful shutdown.
 **/
void
lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	MAILBOX_t *mb = &pmb->u.mb;

	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
	mb->mbxCommand = MBX_KILL_BOARD;
	mb->mbxOwner = OWN_HOST;
	return;
}

/**
 * lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue
 * @phba: pointer to lpfc hba data structure.
 * @mbq: pointer to the driver internal queue element for mailbox command.
 *
 * Driver maintains a internal mailbox command queue implemented as a linked
 * list. When a mailbox command is issued, it shall be put into the mailbox
 * command queue such that they shall be processed orderly as HBA can process
 * one mailbox command at a time.
 **/
void
lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
{
	struct lpfc_sli *psli;

	psli = &phba->sli;

	list_add_tail(&mbq->list, &psli->mboxq);

	psli->mboxq_cnt++;

	return;
}

/**
 * lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue
 * @phba: pointer to lpfc hba data structure.
 *
 * Driver maintains a internal mailbox command queue implemented as a linked
 * list. When a mailbox command is issued, it shall be put into the mailbox
 * command queue such that they shall be processed orderly as HBA can process
 * one mailbox command at a time. After HBA finished processing a mailbox
 * command, the driver will remove a pending mailbox command from the head of
 * the mailbox command queue and send to the HBA for processing.
 *
 * Return codes
 *    pointer to the driver internal queue element for mailbox command.
 **/
LPFC_MBOXQ_t *
lpfc_mbox_get(struct lpfc_hba * phba)
{
	LPFC_MBOXQ_t *mbq = NULL;
	struct lpfc_sli *psli = &phba->sli;

	list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
	if (mbq)
		psli->mboxq_cnt--;

	return mbq;
}

/**
 * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
 * @phba: pointer to lpfc hba data structure.
 * @mbq: pointer to the driver internal queue element for mailbox command.
 *
 * This routine put the completed mailbox command into the mailbox command
 * complete list. This is the unlocked version of the routine. The mailbox
 * complete list is used by the driver worker thread to process mailbox
 * complete callback functions outside the driver interrupt handler.
 **/
void
__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
{
	list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
}

/**
 * lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
 * @phba: pointer to lpfc hba data structure.
 * @mbq: pointer to the driver internal queue element for mailbox command.
 *
 * This routine put the completed mailbox command into the mailbox command
 * complete list. This is the locked version of the routine. The mailbox
 * complete list is used by the driver worker thread to process mailbox
 * complete callback functions outside the driver interrupt handler.
 **/
void
lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
{
	unsigned long iflag;

	/* This function expects to be called from interrupt context */
	spin_lock_irqsave(&phba->hbalock, iflag);
	__lpfc_mbox_cmpl_put(phba, mbq);
	spin_unlock_irqrestore(&phba->hbalock, iflag);
	return;
}

/**
 * lpfc_mbox_cmd_check - Check the validality of a mailbox command
 * @phba: pointer to lpfc hba data structure.
 * @mboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This routine is to check whether a mailbox command is valid to be issued.
 * This check will be performed by both the mailbox issue API when a client
 * is to issue a mailbox command to the mailbox transport.
 *
 * Return 0 - pass the check, -ENODEV - fail the check
 **/
int
lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	/* Mailbox command that have a completion handler must also have a
	 * vport specified.
	 */
	if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
	    mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
		if (!mboxq->vport) {
			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
					"1814 Mbox x%x failed, no vport\n",
					mboxq->u.mb.mbxCommand);
			dump_stack();
			return -ENODEV;
		}
	}
	return 0;
}

/**
 * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is to check whether the HBA device is ready for posting a
 * mailbox command. It is used by the mailbox transport API at the time the
 * to post a mailbox command to the device.
 *
 * Return 0 - pass the check, -ENODEV - fail the check
 **/
int
lpfc_mbox_dev_check(struct lpfc_hba *phba)
{
	/* If the PCI channel is in offline state, do not issue mbox */
	if (unlikely(pci_channel_offline(phba->pcidev)))
		return -ENODEV;

	/* If the HBA is in error state, do not issue mbox */
	if (phba->link_state == LPFC_HBA_ERROR)
		return -ENODEV;

	return 0;
}

/**
 * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
 * @phba: pointer to lpfc hba data structure.
 * @cmd: mailbox command code.
 *
 * This routine retrieves the proper timeout value according to the mailbox
 * command code.
 *
 * Return codes
 *    Timeout value to be used for the given mailbox command
 **/
int
lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	MAILBOX_t *mbox = &mboxq->u.mb;
	uint8_t subsys, opcode;

	switch (mbox->mbxCommand) {
	case MBX_WRITE_NV:	/* 0x03 */
	case MBX_DUMP_MEMORY:	/* 0x17 */
	case MBX_UPDATE_CFG:	/* 0x1B */
	case MBX_DOWN_LOAD:	/* 0x1C */
	case MBX_DEL_LD_ENTRY:	/* 0x1D */
	case MBX_WRITE_VPARMS:	/* 0x32 */
	case MBX_LOAD_AREA:	/* 0x81 */
	case MBX_WRITE_WWN:     /* 0x98 */
	case MBX_LOAD_EXP_ROM:	/* 0x9C */
	case MBX_ACCESS_VDATA:	/* 0xA5 */
		return LPFC_MBOX_TMO_FLASH_CMD;
	case MBX_SLI4_CONFIG:	/* 0x9b */
		subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
		opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq);
		if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) {
			switch (opcode) {
			case LPFC_MBOX_OPCODE_READ_OBJECT:
			case LPFC_MBOX_OPCODE_WRITE_OBJECT:
			case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
			case LPFC_MBOX_OPCODE_DELETE_OBJECT:
			case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
			case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
			case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG:
			case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
			case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
			case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES:
			case LPFC_MBOX_OPCODE_SEND_ACTIVATION:
			case LPFC_MBOX_OPCODE_RESET_LICENSES:
			case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG:
			case LPFC_MBOX_OPCODE_GET_VPD_DATA:
			case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG:
				return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
			}
		}
		if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) {
			switch (opcode) {
			case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS:
				return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
			}
		}
		return LPFC_MBOX_SLI4_CONFIG_TMO;
	}
	return LPFC_MBOX_TMO;
}

/**
 * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
 * @mbox: pointer to lpfc mbox command.
 * @sgentry: sge entry index.
 * @phyaddr: physical address for the sge
 * @length: Length of the sge.
 *
 * This routine sets up an entry in the non-embedded mailbox command at the sge
 * index location.
 **/
void
lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
		      dma_addr_t phyaddr, uint32_t length)
{
	struct lpfc_mbx_nembed_cmd *nembed_sge;

	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
				&mbox->u.mqe.un.nembed_cmd;
	nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
	nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
	nembed_sge->sge[sgentry].length = length;
}

/**
 * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
 * @mbox: pointer to lpfc mbox command.
 * @sgentry: sge entry index.
 *
 * This routine gets an entry from the non-embedded mailbox command at the sge
 * index location.
 **/
void
lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
		      struct lpfc_mbx_sge *sge)
{
	struct lpfc_mbx_nembed_cmd *nembed_sge;

	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
				&mbox->u.mqe.un.nembed_cmd;
	sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
	sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
	sge->length = nembed_sge->sge[sgentry].length;
}

/**
 * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
 * @phba: pointer to lpfc hba data structure.
 * @mbox: pointer to lpfc mbox command.
 *
 * This routine frees SLI4 specific mailbox command for sending IOCTL command.
 **/
void
lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
	struct lpfc_mbx_sli4_config *sli4_cfg;
	struct lpfc_mbx_sge sge;
	dma_addr_t phyaddr;
	uint32_t sgecount, sgentry;

	sli4_cfg = &mbox->u.mqe.un.sli4_config;

	/* For embedded mbox command, just free the mbox command */
	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
		mempool_free(mbox, phba->mbox_mem_pool);
		return;
	}

	/* For non-embedded mbox command, we need to free the pages first */
	sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
	/* There is nothing we can do if there is no sge address array */
	if (unlikely(!mbox->sge_array)) {
		mempool_free(mbox, phba->mbox_mem_pool);
		return;
	}
	/* Each non-embedded DMA memory was allocated in the length of a page */
	for (sgentry = 0; sgentry < sgecount; sgentry++) {
		lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
		phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
		dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
				  mbox->sge_array->addr[sgentry], phyaddr);
	}
	/* Free the sge address array memory */
	kfree(mbox->sge_array);
	/* Finally, free the mailbox command itself */
	mempool_free(mbox, phba->mbox_mem_pool);
}

/**
 * lpfc_sli4_config - Initialize the  SLI4 Config Mailbox command
 * @phba: pointer to lpfc hba data structure.
 * @mbox: pointer to lpfc mbox command.
 * @subsystem: The sli4 config sub mailbox subsystem.
 * @opcode: The sli4 config sub mailbox command opcode.
 * @length: Length of the sli4 config mailbox command (including sub-header).
 *
 * This routine sets up the header fields of SLI4 specific mailbox command
 * for sending IOCTL command.
 *
 * Return: the actual length of the mbox command allocated (mostly useful
 *         for none embedded mailbox command).
 **/
int
lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
		 uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
{
	struct lpfc_mbx_sli4_config *sli4_config;
	union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
	uint32_t alloc_len;
	uint32_t resid_len;
	uint32_t pagen, pcount;
	void *viraddr;
	dma_addr_t phyaddr;

	/* Set up SLI4 mailbox command header fields */
	memset(mbox, 0, sizeof(*mbox));
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);

	/* Set up SLI4 ioctl command header fields */
	sli4_config = &mbox->u.mqe.un.sli4_config;

	/* Setup for the embedded mbox command */
	if (emb) {
		/* Set up main header fields */
		bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
		sli4_config->header.cfg_mhdr.payload_length = length;
		/* Set up sub-header fields following main header */
		bf_set(lpfc_mbox_hdr_opcode,
			&sli4_config->header.cfg_shdr.request, opcode);
		bf_set(lpfc_mbox_hdr_subsystem,
			&sli4_config->header.cfg_shdr.request, subsystem);
		sli4_config->header.cfg_shdr.request.request_length =
			length - LPFC_MBX_CMD_HDR_LENGTH;
		return length;
	}

	/* Setup for the non-embedded mbox command */
	pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
	pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
				LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
	/* Allocate record for keeping SGE virtual addresses */
	mbox->sge_array = kzalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
				  GFP_KERNEL);
	if (!mbox->sge_array) {
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
				"2527 Failed to allocate non-embedded SGE "
				"array.\n");
		return 0;
	}
	for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
		/* The DMA memory is always allocated in the length of a
		 * page even though the last SGE might not fill up to a
		 * page, this is used as a priori size of SLI4_PAGE_SIZE for
		 * the later DMA memory free.
		 */
		viraddr = dma_zalloc_coherent(&phba->pcidev->dev,
					      SLI4_PAGE_SIZE, &phyaddr,
					      GFP_KERNEL);
		/* In case of malloc fails, proceed with whatever we have */
		if (!viraddr)
			break;
		mbox->sge_array->addr[pagen] = viraddr;
		/* Keep the first page for later sub-header construction */
		if (pagen == 0)
			cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
		resid_len = length - alloc_len;
		if (resid_len > SLI4_PAGE_SIZE) {
			lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
					      SLI4_PAGE_SIZE);
			alloc_len += SLI4_PAGE_SIZE;
		} else {
			lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
					      resid_len);
			alloc_len = length;
		}
	}

	/* Set up main header fields in mailbox command */
	sli4_config->header.cfg_mhdr.payload_length = alloc_len;
	bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);

	/* Set up sub-header fields into the first page */
	if (pagen > 0) {
		bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
		bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
		cfg_shdr->request.request_length =
				alloc_len - sizeof(union  lpfc_sli4_cfg_shdr);
	}
	/* The sub-header is in DMA memory, which needs endian converstion */
	if (cfg_shdr)
		lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
				      sizeof(union  lpfc_sli4_cfg_shdr));
	return alloc_len;
}

/**
 * lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent.
 * @phba: pointer to lpfc hba data structure.
 * @mbox: pointer to an allocated lpfc mbox resource.
 * @exts_count: the number of extents, if required, to allocate.
 * @rsrc_type: the resource extent type.
 * @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED.
 *
 * This routine completes the subcommand header for SLI4 resource extent
 * mailbox commands.  It is called after lpfc_sli4_config.  The caller must
 * pass an allocated mailbox and the attributes required to initialize the
 * mailbox correctly.
 *
 * Return: the actual length of the mbox command allocated.
 **/
int
lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
			   uint16_t exts_count, uint16_t rsrc_type, bool emb)
{
	uint8_t opcode = 0;
	struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL;
	void *virtaddr = NULL;

	/* Set up SLI4 ioctl command header fields */
	if (emb == LPFC_SLI4_MBX_NEMBED) {
		/* Get the first SGE entry from the non-embedded DMA memory */
		virtaddr = mbox->sge_array->addr[0];
		if (virtaddr == NULL)
			return 1;
		n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
	}

	/*
	 * The resource type is common to all extent Opcodes and resides in the
	 * same position.
	 */
	if (emb == LPFC_SLI4_MBX_EMBED)
		bf_set(lpfc_mbx_alloc_rsrc_extents_type,
		       &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
		       rsrc_type);
	else {
		/* This is DMA data.  Byteswap is required. */
		bf_set(lpfc_mbx_alloc_rsrc_extents_type,
		       n_rsrc_extnt, rsrc_type);
		lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
				      &n_rsrc_extnt->word4,
				      sizeof(uint32_t));
	}

	/* Complete the initialization for the particular Opcode. */
	opcode = lpfc_sli_config_mbox_opcode_get(phba, mbox);
	switch (opcode) {
	case LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT:
		if (emb == LPFC_SLI4_MBX_EMBED)
			bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
			       &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
			       exts_count);
		else
			bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
			       n_rsrc_extnt, exts_count);
		break;
	case LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT:
	case LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO:
	case LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT:
		/* Initialization is complete.*/
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
				"2929 Resource Extent Opcode x%x is "
				"unsupported\n", opcode);
		return 1;
	}

	return 0;
}

/**
 * lpfc_sli_config_mbox_subsys_get - Get subsystem from a sli_config mbox cmd
 * @phba: pointer to lpfc hba data structure.
 * @mbox: pointer to lpfc mbox command queue entry.
 *
 * This routine gets the subsystem from a SLI4 specific SLI_CONFIG mailbox
 * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if the
 * sub-header is not present, subsystem LPFC_MBOX_SUBSYSTEM_NA (0x0) shall
 * be returned.
 **/
uint8_t
lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
	struct lpfc_mbx_sli4_config *sli4_cfg;
	union lpfc_sli4_cfg_shdr *cfg_shdr;

	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
		return LPFC_MBOX_SUBSYSTEM_NA;
	sli4_cfg = &mbox->u.mqe.un.sli4_config;

	/* For embedded mbox command, get opcode from embedded sub-header*/
	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
		cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
		return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
	}

	/* For non-embedded mbox command, get opcode from first dma page */
	if (unlikely(!mbox->sge_array))
		return LPFC_MBOX_SUBSYSTEM_NA;
	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
	return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
}

/**
 * lpfc_sli_config_mbox_opcode_get - Get opcode from a sli_config mbox cmd
 * @phba: pointer to lpfc hba data structure.
 * @mbox: pointer to lpfc mbox command queue entry.
 *
 * This routine gets the opcode from a SLI4 specific SLI_CONFIG mailbox
 * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if
 * the sub-header is not present, opcode LPFC_MBOX_OPCODE_NA (0x0) be
 * returned.
 **/
uint8_t
lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
	struct lpfc_mbx_sli4_config *sli4_cfg;
	union lpfc_sli4_cfg_shdr *cfg_shdr;

	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
		return LPFC_MBOX_OPCODE_NA;
	sli4_cfg = &mbox->u.mqe.un.sli4_config;

	/* For embedded mbox command, get opcode from embedded sub-header*/
	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
		cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
		return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
	}

	/* For non-embedded mbox command, get opcode from first dma page */
	if (unlikely(!mbox->sge_array))
		return LPFC_MBOX_OPCODE_NA;
	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
	return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
}

/**
 * lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
 * @phba: pointer to lpfc hba data structure.
 * @fcf_index: index to fcf table.
 *
 * This routine routine allocates and constructs non-embedded mailbox command
 * for reading a FCF table entry referred by @fcf_index.
 *
 * Return: pointer to the mailbox command constructed if successful, otherwise
 * NULL.
 **/
int
lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
			   struct lpfcMboxq *mboxq,
			   uint16_t fcf_index)
{
	void *virt_addr;
	dma_addr_t phys_addr;
	uint8_t *bytep;
	struct lpfc_mbx_sge sge;
	uint32_t alloc_len, req_len;
	struct lpfc_mbx_read_fcf_tbl *read_fcf;

	if (!mboxq)
		return -ENOMEM;

	req_len = sizeof(struct fcf_record) +
		  sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);

	/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
	alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
			LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
			LPFC_SLI4_MBX_NEMBED);

	if (alloc_len < req_len) {
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
				"0291 Allocated DMA memory size (x%x) is "
				"less than the requested DMA memory "
				"size (x%x)\n", alloc_len, req_len);
		return -ENOMEM;
	}

	/* Get the first SGE entry from the non-embedded DMA memory. This
	 * routine only uses a single SGE.
	 */
	lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
	phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
	virt_addr = mboxq->sge_array->addr[0];
	read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;

	/* Set up command fields */
	bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
	/* Perform necessary endian conversion */
	bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
	lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));

	return 0;
}

/**
 * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
 * @mboxq: pointer to lpfc mbox command.
 *
 * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
 * mailbox command.
 **/
void
lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
{
	/* Set up SLI4 mailbox command header fields */
	memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
	bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);

	/* Set up host requested features. */
	bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
	bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);

	/* Enable DIF (block guard) only if configured to do so. */
	if (phba->cfg_enable_bg)
		bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);

	/* Enable NPIV only if configured to do so. */
	if (phba->max_vpi && phba->cfg_enable_npiv)
		bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);

	return;
}

/**
 * lpfc_init_vfi - Initialize the INIT_VFI mailbox command
 * @mbox: pointer to lpfc mbox command to initialize.
 * @vport: Vport associated with the VF.
 *
 * This routine initializes @mbox to all zeros and then fills in the mailbox
 * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
 * in the context of an FCF. The driver issues this command to setup a VFI
 * before issuing a FLOGI to login to the VSAN. The driver should also issue a
 * REG_VFI after a successful VSAN login.
 **/
void
lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
{
	struct lpfc_mbx_init_vfi *init_vfi;

	memset(mbox, 0, sizeof(*mbox));
	mbox->vport = vport;
	init_vfi = &mbox->u.mqe.un.init_vfi;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
	bf_set(lpfc_init_vfi_vr, init_vfi, 1);
	bf_set(lpfc_init_vfi_vt, init_vfi, 1);
	bf_set(lpfc_init_vfi_vp, init_vfi, 1);
	bf_set(lpfc_init_vfi_vfi, init_vfi,
	       vport->phba->sli4_hba.vfi_ids[vport->vfi]);
	bf_set(lpfc_init_vfi_vpi, init_vfi,
	       vport->phba->vpi_ids[vport->vpi]);
	bf_set(lpfc_init_vfi_fcfi, init_vfi,
	       vport->phba->fcf.fcfi);
}

/**
 * lpfc_reg_vfi - Initialize the REG_VFI mailbox command
 * @mbox: pointer to lpfc mbox command to initialize.
 * @vport: vport associated with the VF.
 * @phys: BDE DMA bus address used to send the service parameters to the HBA.
 *
 * This routine initializes @mbox to all zeros and then fills in the mailbox
 * fields from @vport, and uses @buf as a DMAable buffer to send the vport's
 * fc service parameters to the HBA for this VFI. REG_VFI configures virtual
 * fabrics identified by VFI in the context of an FCF.
 **/
void
lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
{
	struct lpfc_mbx_reg_vfi *reg_vfi;
	struct lpfc_hba *phba = vport->phba;

	memset(mbox, 0, sizeof(*mbox));
	reg_vfi = &mbox->u.mqe.un.reg_vfi;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
	bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
	bf_set(lpfc_reg_vfi_vfi, reg_vfi,
	       phba->sli4_hba.vfi_ids[vport->vfi]);
	bf_set(lpfc_reg_vfi_fcfi, reg_vfi, phba->fcf.fcfi);
	bf_set(lpfc_reg_vfi_vpi, reg_vfi, phba->vpi_ids[vport->vpi]);
	memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name));
	reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]);
	reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
	reg_vfi->e_d_tov = phba->fc_edtov;
	reg_vfi->r_a_tov = phba->fc_ratov;
	reg_vfi->bde.addrHigh = putPaddrHigh(phys);
	reg_vfi->bde.addrLow = putPaddrLow(phys);
	reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
	reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
	bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);

	/* Only FC supports upd bit */
	if ((phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) &&
	    (vport->fc_flag & FC_VFI_REGISTERED) &&
	    (!phba->fc_topology_changed)) {
		bf_set(lpfc_reg_vfi_vp, reg_vfi, 0);
		bf_set(lpfc_reg_vfi_upd, reg_vfi, 1);
	}
	lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
			"3134 Register VFI, mydid:x%x, fcfi:%d, "
			" vfi:%d, vpi:%d, fc_pname:%x%x fc_flag:x%x"
			" port_state:x%x topology chg:%d\n",
			vport->fc_myDID,
			phba->fcf.fcfi,
			phba->sli4_hba.vfi_ids[vport->vfi],
			phba->vpi_ids[vport->vpi],
			reg_vfi->wwn[0], reg_vfi->wwn[1], vport->fc_flag,
			vport->port_state, phba->fc_topology_changed);
}

/**
 * lpfc_init_vpi - Initialize the INIT_VPI mailbox command
 * @phba: pointer to the hba structure to init the VPI for.
 * @mbox: pointer to lpfc mbox command to initialize.
 * @vpi: VPI to be initialized.
 *
 * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
 * command to activate a virtual N_Port. The HBA assigns a MAC address to use
 * with the virtual N Port.  The SLI Host issues this command before issuing a
 * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
 * successful virtual NPort login.
 **/
void
lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi)
{
	memset(mbox, 0, sizeof(*mbox));
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
	bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi,
	       phba->vpi_ids[vpi]);
	bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi,
	       phba->sli4_hba.vfi_ids[phba->pport->vfi]);
}

/**
 * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
 * @mbox: pointer to lpfc mbox command to initialize.
 * @vport: vport associated with the VF.
 *
 * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
 * (logical NPort) into the inactive state. The SLI Host must have logged out
 * and unregistered all remote N_Ports to abort any activity on the virtual
 * fabric. The SLI Port posts the mailbox response after marking the virtual
 * fabric inactive.
 **/
void
lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
{
	memset(mbox, 0, sizeof(*mbox));
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
	bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi,
	       vport->phba->sli4_hba.vfi_ids[vport->vfi]);
}

/**
 * lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
 * @phba: pointer to the hba structure containing.
 * @mbox: pointer to lpfc mbox command to initialize.
 *
 * This function create a SLI4 dump mailbox command to dump configure
 * region 23.
 **/
int
lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
	struct lpfc_dmabuf *mp = NULL;
	MAILBOX_t *mb;

	memset(mbox, 0, sizeof(*mbox));
	mb = &mbox->u.mb;

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (mp)
		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);

	if (!mp || !mp->virt) {
		kfree(mp);
		/* dump config region 23 failed to allocate memory */
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
			"2569 lpfc dump config region 23: memory"
			" allocation failed\n");
		return 1;
	}

	memset(mp->virt, 0, LPFC_BPL_SIZE);
	INIT_LIST_HEAD(&mp->list);

	/* save address for completion */
	mbox->context1 = (uint8_t *) mp;

	mb->mbxCommand = MBX_DUMP_MEMORY;
	mb->un.varDmp.type = DMP_NV_PARAMS;
	mb->un.varDmp.region_id = DMP_REGION_23;
	mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
	mb->un.varWords[3] = putPaddrLow(mp->phys);
	mb->un.varWords[4] = putPaddrHigh(mp->phys);
	return 0;
}

void
lpfc_mbx_cmpl_rdp_link_stat(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	MAILBOX_t *mb;
	int rc = FAILURE;
	struct lpfc_rdp_context *rdp_context =
			(struct lpfc_rdp_context *)(mboxq->context2);

	mb = &mboxq->u.mb;
	if (mb->mbxStatus)
		goto mbx_failed;

	memcpy(&rdp_context->link_stat, &mb->un.varRdLnk, sizeof(READ_LNK_VAR));

	rc = SUCCESS;

mbx_failed:
	lpfc_sli4_mbox_cmd_free(phba, mboxq);
	rdp_context->cmpl(phba, rdp_context, rc);
}

void
lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
	struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) mbox->context1;
	struct lpfc_rdp_context *rdp_context =
			(struct lpfc_rdp_context *)(mbox->context2);

	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
		goto error;

	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
				DMP_SFF_PAGE_A2_SIZE);

	/* We don't need dma buffer for link stat. */
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
	kfree(mp);

	memset(mbox, 0, sizeof(*mbox));
	lpfc_read_lnk_stat(phba, mbox);
	mbox->vport = rdp_context->ndlp->vport;
	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
	mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
	if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
		goto error;

	return;

error:
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
	kfree(mp);
	lpfc_sli4_mbox_cmd_free(phba, mbox);
	rdp_context->cmpl(phba, rdp_context, FAILURE);
}

void
lpfc_mbx_cmpl_rdp_page_a0(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
	int rc;
	struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (mbox->context1);
	struct lpfc_rdp_context *rdp_context =
			(struct lpfc_rdp_context *)(mbox->context2);

	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
		goto error;

	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
				DMP_SFF_PAGE_A0_SIZE);

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

	memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
	INIT_LIST_HEAD(&mp->list);

	/* save address for completion */
	mbox->context1 = mp;
	mbox->vport = rdp_context->ndlp->vport;

	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
	bf_set(lpfc_mbx_memory_dump_type3_type,
		&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
	bf_set(lpfc_mbx_memory_dump_type3_link,
		&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
	bf_set(lpfc_mbx_memory_dump_type3_page_no,
		&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
	bf_set(lpfc_mbx_memory_dump_type3_length,
		&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);

	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a2;
	mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
	if (rc == MBX_NOT_FINISHED)
		goto error;

	return;

error:
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
	kfree(mp);
	lpfc_sli4_mbox_cmd_free(phba, mbox);
	rdp_context->cmpl(phba, rdp_context, FAILURE);
}


/*
 * lpfc_sli4_dump_sfp_pagea0 - Dump sli4 read SFP Diagnostic.
 * @phba: pointer to the hba structure containing.
 * @mbox: pointer to lpfc mbox command to initialize.
 *
 * This function create a SLI4 dump mailbox command to dump configure
 * type 3 page 0xA0.
 */
int
lpfc_sli4_dump_page_a0(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
	struct lpfc_dmabuf *mp = NULL;

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

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (mp)
		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp || !mp->virt) {
		kfree(mp);
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
			"3569 dump type 3 page 0xA0 allocation failed\n");
		return 1;
	}

	memset(mp->virt, 0, LPFC_BPL_SIZE);
	INIT_LIST_HEAD(&mp->list);

	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
	/* save address for completion */
	mbox->context1 = mp;

	bf_set(lpfc_mbx_memory_dump_type3_type,
		&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
	bf_set(lpfc_mbx_memory_dump_type3_link,
		&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
	bf_set(lpfc_mbx_memory_dump_type3_page_no,
		&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A0);
	bf_set(lpfc_mbx_memory_dump_type3_length,
		&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);

	return 0;
}

/**
 * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
 * @phba: pointer to the hba structure containing the FCF index and RQ ID.
 * @mbox: pointer to lpfc mbox command to initialize.
 *
 * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
 * SLI Host uses the command to activate an FCF after it has acquired FCF
 * information via a READ_FCF mailbox command. This mailbox command also is used
 * to indicate where received unsolicited frames from this FCF will be sent. By
 * default this routine will set up the FCF to forward all unsolicited frames
 * the the RQ ID passed in the @phba. This can be overridden by the caller for
 * more complicated setups.
 **/
void
lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
	struct lpfc_mbx_reg_fcfi *reg_fcfi;

	memset(mbox, 0, sizeof(*mbox));
	reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
	bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi, phba->sli4_hba.hdr_rq->queue_id);
	bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
	bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
	bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
	bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
	       phba->fcf.current_rec.fcf_indx);
	/* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
	bf_set(lpfc_reg_fcfi_mam, reg_fcfi, (~phba->fcf.addr_mode) & 0x3);
	if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
		bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
		bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
		       phba->fcf.current_rec.vlan_id);
	}
}

/**
 * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
 * @mbox: pointer to lpfc mbox command to initialize.
 * @fcfi: FCFI to be unregistered.
 *
 * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
 * The SLI Host uses the command to inactivate an FCFI.
 **/
void
lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
{
	memset(mbox, 0, sizeof(*mbox));
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
	bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
}

/**
 * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
 * @mbox: pointer to lpfc mbox command to initialize.
 * @ndlp: The nodelist structure that describes the RPI to resume.
 *
 * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
 * link event.
 **/
void
lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
{
	struct lpfc_hba *phba = ndlp->phba;
	struct lpfc_mbx_resume_rpi *resume_rpi;

	memset(mbox, 0, sizeof(*mbox));
	resume_rpi = &mbox->u.mqe.un.resume_rpi;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
	bf_set(lpfc_resume_rpi_index, resume_rpi,
	       phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
	bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI);
	resume_rpi->event_tag = ndlp->phba->fc_eventTag;
}

/**
 * lpfc_supported_pages - Initialize the PORT_CAPABILITIES supported pages
 *                        mailbox command.
 * @mbox: pointer to lpfc mbox command to initialize.
 *
 * The PORT_CAPABILITIES supported pages mailbox command is issued to
 * retrieve the particular feature pages supported by the port.
 **/
void
lpfc_supported_pages(struct lpfcMboxq *mbox)
{
	struct lpfc_mbx_supp_pages *supp_pages;

	memset(mbox, 0, sizeof(*mbox));
	supp_pages = &mbox->u.mqe.un.supp_pages;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
	bf_set(cpn, supp_pages, LPFC_SUPP_PAGES);
}

/**
 * lpfc_pc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params mbox cmd.
 * @mbox: pointer to lpfc mbox command to initialize.
 *
 * The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to
 * retrieve the particular SLI4 features supported by the port.
 **/
void
lpfc_pc_sli4_params(struct lpfcMboxq *mbox)
{
	struct lpfc_mbx_pc_sli4_params *sli4_params;

	memset(mbox, 0, sizeof(*mbox));
	sli4_params = &mbox->u.mqe.un.sli4_params;
	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
	bf_set(cpn, sli4_params, LPFC_SLI4_PARAMETERS);
}