summaryrefslogtreecommitdiff
path: root/sys/dev/pci/mpii.c
blob: 38f0c1999597f536513cfab03d989c8586fb1be1 (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
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
/* $OpenBSD: mpii.c,v 1.10 2010/03/07 14:10:59 marco Exp $ */
/*
 * Copyright (c) 2010 Mike Belopuhov <mkb@crypt.org.ru>
 * Copyright (c) 2009 James Giannoules
 * Copyright (c) 2005 - 2010 David Gwynne <dlg@openbsd.org>
 * Copyright (c) 2005 - 2010 Marco Peereboom <marco@openbsd.org>
 *
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "bio.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/rwlock.h>
#include <sys/sensors.h>
#include <sys/tree.h>

#include <machine/bus.h>

#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>

#ifdef __sparc64__
#include <dev/ofw/openfirm.h>
#endif

#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>

#include <dev/biovar.h>

#define MPII_DOORBELL			(0x00)
/* doorbell read bits */
#define MPII_DOORBELL_STATE		(0xf<<28) /* ioc state */
#define  MPII_DOORBELL_STATE_RESET	(0x0<<28)
#define  MPII_DOORBELL_STATE_READY	(0x1<<28)
#define  MPII_DOORBELL_STATE_OPER	(0x2<<28)
#define  MPII_DOORBELL_STATE_FAULT	(0x4<<28)
#define  MPII_DOORBELL_INUSE		(0x1<<27) /* doorbell used */
#define MPII_DOORBELL_WHOINIT		(0x7<<24) /* last to reset ioc */
#define  MPII_DOORBELL_WHOINIT_NOONE	(0x0<<24) /* not initialized */
#define  MPII_DOORBELL_WHOINIT_SYSBIOS	(0x1<<24) /* system bios */
#define  MPII_DOORBELL_WHOINIT_ROMBIOS	(0x2<<24) /* rom bios */
#define  MPII_DOORBELL_WHOINIT_PCIPEER	(0x3<<24) /* pci peer */
#define  MPII_DOORBELL_WHOINIT_DRIVER	(0x4<<24) /* host driver */
#define  MPII_DOORBELL_WHOINIT_MANUFACT	(0x5<<24) /* manufacturing */
#define MPII_DOORBELL_FAULT		(0xffff<<0) /* fault code */
/* doorbell write bits */
#define MPII_DOORBELL_FUNCTION_SHIFT	(24)
#define MPII_DOORBELL_FUNCTION_MASK	(0xff << MPII_DOORBELL_FUNCTION_SHIFT)
#define MPII_DOORBELL_FUNCTION(x)	\
    (((x) << MPII_DOORBELL_FUNCTION_SHIFT) & MPII_DOORBELL_FUNCTION_MASK)
#define MPII_DOORBELL_DWORDS_SHIFT	16
#define MPII_DOORBELL_DWORDS_MASK	(0xff << MPII_DOORBELL_DWORDS_SHIFT)
#define MPII_DOORBELL_DWORDS(x)		\
    (((x) << MPII_DOORBELL_DWORDS_SHIFT) & MPII_DOORBELL_DWORDS_MASK)
#define MPII_DOORBELL_DATA_MASK		(0xffff)

#define MPII_WRITESEQ			(0x04)
#define  MPII_WRITESEQ_KEY_VALUE_MASK	(0x0000000f) /* key value */
#define  MPII_WRITESEQ_FLUSH		(0x00)
#define  MPII_WRITESEQ_1		(0x0f)
#define  MPII_WRITESEQ_2		(0x04)
#define  MPII_WRITESEQ_3		(0x0b)
#define  MPII_WRITESEQ_4		(0x02)
#define  MPII_WRITESEQ_5		(0x07)
#define	 MPII_WRITESEQ_6		(0x0d)	

#define MPII_HOSTDIAG			(0x08)
#define  MPII_HOSTDIAG_BDS_MASK		(0x00001800) /* boot device select */
#define   MPII_HOSTDIAG_BDS_DEFAULT 	(0<<11)	/* default address map, flash */
#define   MPII_HOSTDIAG_BDS_HCDW	(1<<11)	/* host code and data window */
#define  MPII_HOSTDIAG_CLEARFBS		(1<<10) /* clear flash bad sig */
#define  MPII_HOSTDIAG_FORCE_HCB_ONBOOT (1<<9)	/* force host controlled boot */
#define  MPII_HOSTDIAG_HCB_MODE		(1<<8)	/* host controlled boot mode */
#define  MPII_HOSTDIAG_DWRE		(1<<7) 	/* diag reg write enabled */
#define  MPII_HOSTDIAG_FBS		(1<<6) 	/* flash bad sig */
#define  MPII_HOSTDIAG_RESET_HIST	(1<<5) 	/* reset history */
#define  MPII_HOSTDIAG_DIAGWR_EN	(1<<4) 	/* diagnostic write enabled */
#define  MPII_HOSTDIAG_RESET_ADAPTER	(1<<2) 	/* reset adapter */
#define  MPII_HOSTDIAG_HOLD_IOC_RESET	(1<<1) 	/* hold ioc in reset */
#define  MPII_HOSTDIAG_DIAGMEM_EN	(1<<0) 	/* diag mem enable */

#define MPII_DIAGRWDATA			(0x10)

#define MPII_DIAGRWADDRLOW		(0x14)

#define MPII_DIAGRWADDRHIGH		(0x18)

#define MPII_INTR_STATUS		(0x30)
#define  MPII_INTR_STATUS_SYS2IOCDB	(1<<31) /* ioc written to by host */
#define  MPII_INTR_STATUS_RESET		(1<<30) /* physical ioc reset */
#define  MPII_INTR_STATUS_REPLY		(1<<3)	/* reply message interrupt */
#define  MPII_INTR_STATUS_IOC2SYSDB	(1<<0) 	/* ioc write to doorbell */

#define MPII_INTR_MASK			(0x34)
#define  MPII_INTR_MASK_RESET		(1<<30) /* ioc reset intr mask */
#define  MPII_INTR_MASK_REPLY		(1<<3) 	/* reply message intr mask */
#define  MPII_INTR_MASK_DOORBELL	(1<<0) 	/* doorbell interrupt mask */

#define MPII_DCR_DATA			(0x38)

#define MPII_DCR_ADDRESS		(0x3c)

#define MPII_REPLY_FREE_HOST_INDEX	(0x48)

#define MPII_REPLY_POST_HOST_INDEX	(0x6c)

#define MPII_HCB_SIZE			(0x74)

#define MPII_HCB_ADDRESS_LOW		(0x78)
#define MPII_HCB_ADDRESS_HIGH		(0x7c)

#define MPII_REQ_DESC_POST_LOW		(0xc0)
#define MPII_REQ_DESC_POST_HIGH		(0xc4)

/*
 * Scatter Gather Lists
 */

#define MPII_SGE_FL_LAST		(0x1<<31) /* last element in segment */
#define MPII_SGE_FL_EOB			(0x1<<30) /* last element of buffer */
#define MPII_SGE_FL_TYPE		(0x3<<28) /* element type */
 #define MPII_SGE_FL_TYPE_SIMPLE	(0x1<<28) /* simple element */
 #define MPII_SGE_FL_TYPE_CHAIN		(0x3<<28) /* chain element */
 #define MPII_SGE_FL_TYPE_XACTCTX	(0x0<<28) /* transaction context */
#define MPII_SGE_FL_LOCAL		(0x1<<27) /* local address */
#define MPII_SGE_FL_DIR			(0x1<<26) /* direction */
 #define MPII_SGE_FL_DIR_OUT		(0x1<<26)
 #define MPII_SGE_FL_DIR_IN		(0x0<<26)
#define MPII_SGE_FL_SIZE		(0x1<<25) /* address size */
 #define MPII_SGE_FL_SIZE_32		(0x0<<25)
 #define MPII_SGE_FL_SIZE_64		(0x1<<25)
#define MPII_SGE_FL_EOL			(0x1<<24) /* end of list */

struct mpii_sge {
	u_int32_t		sg_hdr;
	u_int32_t		sg_lo_addr;
	u_int32_t		sg_hi_addr;
} __packed;

struct mpii_fw_tce {
	u_int8_t		reserved1;
	u_int8_t		context_size;
	u_int8_t		details_length;
	u_int8_t		flags;

	u_int32_t		reserved2;

	u_int32_t		image_offset;

	u_int32_t		image_size;
} __packed;

/*
 * Messages
 */

/* functions */
#define MPII_FUNCTION_SCSI_IO_REQUEST			(0x00)
#define MPII_FUNCTION_SCSI_TASK_MGMT			(0x01)
#define MPII_FUNCTION_IOC_INIT				(0x02)
#define MPII_FUNCTION_IOC_FACTS				(0x03)
#define MPII_FUNCTION_CONFIG				(0x04)
#define MPII_FUNCTION_PORT_FACTS			(0x05)
#define MPII_FUNCTION_PORT_ENABLE			(0x06)
#define MPII_FUNCTION_EVENT_NOTIFICATION		(0x07)
#define MPII_FUNCTION_EVENT_ACK				(0x08)
#define MPII_FUNCTION_FW_DOWNLOAD			(0x09)
#define MPII_FUNCTION_TARGET_CMD_BUFFER_POST		(0x0a)
#define MPII_FUNCTION_TARGET_ASSIST			(0x0b)
#define MPII_FUNCTION_TARGET_STATUS_SEND		(0x0c)
#define MPII_FUNCTION_TARGET_MODE_ABORT			(0x0d)
#define MPII_FUNCTION_FW_UPLOAD				(0x12)

#define MPII_FUNCTION_RAID_ACTION			(0x15)
#define MPII_FUNCTION_RAID_SCSI_IO_PASSTHROUGH		(0x16)

#define MPII_FUNCTION_TOOLBOX				(0x17)

#define MPII_FUNCTION_SCSI_ENCLOSURE_PROCESSOR		(0x18)

#define MPII_FUNCTION_SMP_PASSTHROUGH			(0x1a)
#define MPII_FUNCTION_SAS_IO_UNIT_CONTROL		(0x1b)
#define MPII_FUNCTION_SATA_PASSTHROUGH			(0x1c)

#define MPII_FUNCTION_DIAG_BUFFER_POST			(0x1d)
#define MPII_FUNCTION_DIAG_RELEASE			(0x1e)

#define MPII_FUNCTION_TARGET_CMD_BUF_BASE_POST		(0x24)
#define MPII_FUNCTION_TARGET_CMD_BUF_LIST_POST		(0x25)

#define MPII_FUNCTION_IOC_MESSAGE_UNIT_RESET		(0x40)
#define MPII_FUNCTION_IO_UNIT_RESET			(0x41)
#define MPII_FUNCTION_HANDSHAKE				(0x42)

/* request flags fields for request descriptors */
#define MPII_REQ_DESCRIPTOR_FLAGS_TYPE_SHIFT		(0x01)
#define MPII_REQ_DESCRIPTOR_FLAGS_TYPE_MASK		(0x07 << \
					MPII_REQ_DESCRIPTOR_FLAGS_TYPE_SHIFT)
#define MPII_REQ_DESCRIPTOR_FLAGS_SCSI_IO		(0x00)
#define MPII_REQ_DESCRIPTOR_FLAGS_SCSI_TARGET		(0x02)
#define MPII_REQ_DESCRIPTOR_FLAGS_HIGH_PRIORITY		(0x06)
#define MPII_REQ_DESCRIPTOR_FLAGS_DEFAULT		(0x08)

#define MPII_REQ_DESCRIPTOR_FLAGS_IOC_FIFO_MARKER	(0x01)

/* reply flags */
#define MPII_REP_FLAGS_CONT			(1<<7) /* continuation reply */

#define MPII_REP_IOCSTATUS_AVAIL		(1<<15) /* log info available */
#define MPII_REP_IOCSTATUS			(0x7fff) /* status */

/* Common IOCStatus values for all replies */
#define  MPII_IOCSTATUS_SUCCESS				(0x0000)
#define  MPII_IOCSTATUS_INVALID_FUNCTION		(0x0001)
#define  MPII_IOCSTATUS_BUSY				(0x0002)
#define  MPII_IOCSTATUS_INVALID_SGL			(0x0003)
#define  MPII_IOCSTATUS_INTERNAL_ERROR			(0x0004)
#define  MPII_IOCSTATUS_INVALID_VPID			(0x0005)
#define  MPII_IOCSTATUS_INSUFFICIENT_RESOURCES		(0x0006)
#define  MPII_IOCSTATUS_INVALID_FIELD			(0x0007)
#define  MPII_IOCSTATUS_INVALID_STATE			(0x0008)
#define  MPII_IOCSTATUS_OP_STATE_NOT_SUPPORTED		(0x0009)
/* Config IOCStatus values */
#define  MPII_IOCSTATUS_CONFIG_INVALID_ACTION		(0x0020)
#define  MPII_IOCSTATUS_CONFIG_INVALID_TYPE		(0x0021)
#define  MPII_IOCSTATUS_CONFIG_INVALID_PAGE		(0x0022)
#define  MPII_IOCSTATUS_CONFIG_INVALID_DATA		(0x0023)
#define  MPII_IOCSTATUS_CONFIG_NO_DEFAULTS		(0x0024)
#define  MPII_IOCSTATUS_CONFIG_CANT_COMMIT		(0x0025)
/* SCSIIO Reply initiator values */
#define  MPII_IOCSTATUS_SCSI_RECOVERED_ERROR		(0x0040)
#define  MPII_IOCSTATUS_SCSI_INVALID_DEVHANDLE		(0x0042)
#define  MPII_IOCSTATUS_SCSI_DEVICE_NOT_THERE		(0x0043)
#define  MPII_IOCSTATUS_SCSI_DATA_OVERRUN		(0x0044)
#define  MPII_IOCSTATUS_SCSI_DATA_UNDERRUN		(0x0045)
#define  MPII_IOCSTATUS_SCSI_IO_DATA_ERROR		(0x0046)
#define  MPII_IOCSTATUS_SCSI_PROTOCOL_ERROR		(0x0047)
#define  MPII_IOCSTATUS_SCSI_TASK_TERMINATED		(0x0048)
#define  MPII_IOCSTATUS_SCSI_RESIDUAL_MISMATCH		(0x0049)
#define  MPII_IOCSTATUS_SCSI_TASK_MGMT_FAILED		(0x004a)
#define  MPII_IOCSTATUS_SCSI_IOC_TERMINATED		(0x004b)
#define  MPII_IOCSTATUS_SCSI_EXT_TERMINATED		(0x004c)
/* For use by SCSI Initiator and SCSI Target end-to-end data protection */
#define  MPII_IOCSTATUS_EEDP_GUARD_ERROR		(0x004d)
#define  MPII_IOCSTATUS_EEDP_REF_TAG_ERROR		(0x004e)
#define  MPII_IOCSTATUS_EEDP_APP_TAG_ERROR		(0x004f)
/* SCSI (SPI & FCP) target values */
#define  MPII_IOCSTATUS_TARGET_INVALID_IO_INDEX		(0x0062)
#define  MPII_IOCSTATUS_TARGET_ABORTED			(0x0063)
#define  MPII_IOCSTATUS_TARGET_NO_CONN_RETRYABLE	(0x0064)
#define  MPII_IOCSTATUS_TARGET_NO_CONNECTION		(0x0065)
#define  MPII_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH	(0x006a)
#define  MPII_IOCSTATUS_TARGET_DATA_OFFSET_ERROR	(0x006d)
#define  MPII_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA	(0x006e)
#define  MPII_IOCSTATUS_TARGET_IU_TOO_SHORT		(0x006f)
#define  MPII_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT		(0x0070)
#define  MPII_IOCSTATUS_TARGET_NAK_RECEIVED		(0x0071)
/* Serial Attached SCSI values */
#define  MPII_IOCSTATUS_SAS_SMP_REQUEST_FAILED		(0x0090)
#define  MPII_IOCSTATUS_SAS_SMP_DATA_OVERRUN		(0x0091)
/* Diagnostic Tools values */
#define  MPII_IOCSTATUS_DIAGNOSTIC_RELEASED		(0x00a0)

#define MPII_REP_IOCLOGINFO_TYPE			(0xf<<28) /* log info type */
#define MPII_REP_IOCLOGINFO_TYPE_NONE			(0x0<<28)
#define MPII_REP_IOCLOGINFO_TYPE_SCSI			(0x1<<28)
#define MPII_REP_IOCLOGINFO_TYPE_FC			(0x2<<28)
#define MPII_REP_IOCLOGINFO_TYPE_SAS			(0x3<<28)
#define MPII_REP_IOCLOGINFO_TYPE_ISCSI			(0x4<<28)
#define MPII_REP_IOCLOGINFO_DATA			(0x0fffffff) /* log info data */

/* event notification types */
#define MPII_EVENT_NONE					(0x00)
#define MPII_EVENT_LOG_DATA				(0x01)
#define MPII_EVENT_STATE_CHANGE				(0x02)
#define MPII_EVENT_HARD_RESET_RECEIVED			(0x05)
#define MPII_EVENT_EVENT_CHANGE				(0x0a)
#define MPII_EVENT_TASK_SET_FULL			(0x0e)
#define MPII_EVENT_SAS_DEVICE_STATUS_CHANGE		(0x0f)
#define MPII_EVENT_IR_OPERATION_STATUS			(0x14)
#define MPII_EVENT_SAS_DISCOVERY			(0x16)
#define MPII_EVENT_SAS_BROADCAST_PRIMITIVE		(0x17)
#define MPII_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE	(0x18)
#define MPII_EVENT_SAS_INIT_TABLE_OVERFLOW		(0x19)
#define MPII_EVENT_SAS_TOPOLOGY_CHANGE_LIST		(0x1c)
#define MPII_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE	(0x1d)
#define MPII_EVENT_IR_VOLUME				(0x1e)
#define MPII_EVENT_IR_PHYSICAL_DISK			(0x1f)
#define MPII_EVENT_IR_CONFIGURATION_CHANGE_LIST		(0x20)
#define MPII_EVENT_LOG_ENTRY_ADDED			(0x21)

/* messages */

#define MPII_WHOINIT_NOONE				(0x00)
#define MPII_WHOINIT_SYSTEM_BIOS			(0x01)
#define MPII_WHOINIT_ROM_BIOS				(0x02)
#define MPII_WHOINIT_PCI_PEER				(0x03)
#define MPII_WHOINIT_HOST_DRIVER			(0x04)
#define MPII_WHOINIT_MANUFACTURER			(0x05)

/* page address fields */
#define MPII_PAGE_ADDRESS_FC_BTID	(1<<24)	/* Bus Target ID */

/* default messages */

struct mpii_msg_request {
	u_int8_t		reserved1;
	u_int8_t		reserved2;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int8_t		reserved3;
	u_int8_t		reserved4;
	u_int8_t		reserved5;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved6;
} __packed;

struct mpii_msg_reply {
	u_int16_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_if;
	u_int16_t		reserved4;
	
	u_int16_t		reserved5;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;
} __packed;

/* ioc init */

struct mpii_msg_iocinit_request {
	u_int8_t		whoinit;
	u_int8_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;

	u_int8_t		msg_version_min;
	u_int8_t		msg_version_maj;
	u_int8_t		hdr_version_unit;
	u_int8_t		hdr_version_dev;

	u_int32_t		reserved5;

	u_int32_t		reserved6;

	u_int16_t		reserved7;
	u_int16_t		system_request_frame_size;

	u_int16_t		reply_descriptor_post_queue_depth;
	u_int16_t		reply_free_queue_depth;

	u_int32_t		sense_buffer_address_high;

	u_int32_t		system_reply_address_high;

	u_int64_t		system_request_frame_base_address;

	u_int64_t		reply_descriptor_post_queue_address;

	u_int64_t		reply_free_queue_address;

	u_int64_t		timestamp;

} __packed;

struct mpii_msg_iocinit_reply {
	u_int8_t		whoinit;
	u_int8_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;

	u_int16_t		reserved5;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;
} __packed;

struct mpii_msg_iocfacts_request {
	u_int16_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;
} __packed;

struct mpii_msg_iocfacts_reply {
	u_int8_t		msg_version_min;
	u_int8_t		msg_version_maj;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int8_t		header_version_dev;
	u_int8_t		header_version_unit;
	u_int8_t		ioc_number;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved1;

	u_int16_t		ioc_exceptions;
#define MPII_IOCFACTS_EXCEPT_CONFIG_CHECKSUM_FAIL	(1<<0)
#define MPII_IOCFACTS_EXCEPT_RAID_CONFIG_INVALID	(1<<1)
#define MPII_IOCFACTS_EXCEPT_FW_CHECKSUM_FAIL		(1<<2)
#define MPII_IOCFACTS_EXCEPT_MANUFACT_CHECKSUM_FAIL	(1<<3)
#define MPII_IOCFACTS_EXCEPT_METADATA_UNSUPPORTED	(1<<4)
#define MPII_IOCFACTS_EXCEPT_IR_FOREIGN_CONFIG_MAC	(1<<8)
	/* XXX JPG BOOT_STATUS in bits[7:5] */
	/* XXX JPG all these #defines need to be fixed up */
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int8_t		max_chain_depth;
	u_int8_t		whoinit;
	u_int8_t		number_of_ports;
	u_int8_t		reserved2;

	u_int16_t		request_credit;
	u_int16_t		product_id;

	u_int32_t		ioc_capabilities;
#define MPII_IOCFACTS_CAPABILITY_EVENT_REPLAY           (1<<13)
#define MPII_IOCFACTS_CAPABILITY_INTEGRATED_RAID        (1<<12)
#define MPII_IOCFACTS_CAPABILITY_TLR                    (1<<11)
#define MPII_IOCFACTS_CAPABILITY_MULTICAST              (1<<8)
#define MPII_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET   (1<<7)
#define MPII_IOCFACTS_CAPABILITY_EEDP                   (1<<6)
#define MPII_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER        (1<<4)
#define MPII_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER      (1<<3)
#define MPII_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING (1<<2)

	u_int8_t		fw_version_dev;
	u_int8_t		fw_version_unit;
	u_int8_t		fw_version_min;
	u_int8_t		fw_version_maj;

	u_int16_t		ioc_request_frame_size;
	u_int16_t		reserved3;

	u_int16_t		max_initiators;
	u_int16_t		max_targets;

	u_int16_t		max_sas_expanders;
	u_int16_t		max_enclosures;

	u_int16_t		protocol_flags;
	u_int16_t		high_priority_credit;

	u_int16_t		max_reply_descriptor_post_queue_depth;
	u_int8_t		reply_frame_size;
	u_int8_t		max_volumes;

	u_int16_t		max_dev_handle;
	u_int16_t		max_persistent_entries;

	u_int32_t		reserved4;

} __packed;

struct mpii_msg_portfacts_request {
	u_int16_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		port_number;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;
} __packed;

struct mpii_msg_portfacts_reply {
	u_int16_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		port_number;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int16_t		reserved4;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int8_t		reserved5;
	u_int8_t		port_type;
#define MPII_PORTFACTS_PORTTYPE_INACTIVE		(0x00)
#define MPII_PORTFACTS_PORTTYPE_FC			(0x10)
#define MPII_PORTFACTS_PORTTYPE_ISCSI			(0x20)
#define MPII_PORTFACTS_PORTTYPE_SAS_PHYSICAL		(0x30)
#define MPII_PORTFACTS_PORTTYPE_SAS_VIRTUAL		(0x31)
	u_int16_t		reserved6;

	u_int16_t		max_posted_cmd_buffers;
	u_int16_t		reserved7;
} __packed;

struct mpii_msg_portenable_request {
	u_int16_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int8_t		reserved2;
	u_int8_t		port_flags;	
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;
} __packed;

struct mpii_msg_portenable_reply {
	u_int16_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int8_t		reserved2;
	u_int8_t		port_flags;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;

	u_int16_t		reserved5;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;
} __packed;

struct mpii_msg_event_request {
	u_int16_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		reserved2;
	u_int8_t		reserved3;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved4;

	u_int32_t		reserved5;

	u_int32_t		reserved6;

	u_int32_t		event_masks[4];
	
	u_int16_t		sas_broadcase_primitive_masks;
	u_int16_t		reserved7;

	u_int32_t		reserved8;
} __packed;

struct mpii_msg_event_reply {
	u_int16_t		event_data_length;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		reserved1;
	u_int8_t		ack_required;
#define MPII_EVENT_ACK_REQUIRED				(0x01)
	u_int8_t		msg_flags;
#define MPII_EVENT_FLAGS_REPLY_KEPT			(1<<7)

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved2;

	u_int16_t		reserved3;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int16_t		event;
	u_int16_t		reserved4;

	u_int32_t		event_context;

	/* event data follows */
} __packed;

/* XXX JPG */
struct mpii_evt_change {
	u_int8_t		event_state;
	u_int8_t		reserved[3];
} __packed;

/* XXX JPG */
struct mpii_evt_sas_phy {
	u_int8_t		phy_num;
	u_int8_t		link_rates;
#define MPII_EVT_SASPHY_LINK_CUR(x)			((x) & 0xf0) >> 4
#define MPII_EVT_SASPHY_LINK_PREV(x)			(x) & 0x0f
#define MPII_EVT_SASPHY_LINK_ENABLED			(0x0)
#define MPII_EVT_SASPHY_LINK_DISABLED			(0x1)
#define MPII_EVT_SASPHY_LINK_NEGFAIL			(0x2)
#define MPII_EVT_SASPHY_LINK_SATAOOB			(0x3)
#define MPII_EVT_SASPHY_LINK_1_5GBPS			(0x8)
#define MPII_EVT_SASPHY_LINK_3_0GBPS			(0x9)
	u_int16_t		dev_handle;

	u_int64_t		sas_addr;
} __packed;

struct mpii_evt_sas_change {
	u_int16_t		task_tag;
	u_int8_t		reason;
#define MPII_EVT_SASCH_REASON_SMART_DATA		(0x05)
#define MPII_EVT_SASCH_REASON_UNSUPPORTED		(0x07)
#define MPII_EVT_SASCH_REASON_INTERNAL_RESET		(0x08)
#define MPII_EVT_SASCH_REASON_TASK_ABORT_INTERVAL	(0x09)
#define MPII_EVT_SASCH_REASON_ABORT_TASK_SET_INTERVAL	(0x0a)
#define MPII_EVT_SASCH_REASON_CLEAR_TASK_SET_INTERVAL	(0x0b)
#define MPII_EVT_SASCH_REASON_QUERY_TASK_INTERVAL	(0x0c)
#define MPII_EVT_SASCH_REASON_ASYNC_NOTIFICATION	(0x0d)
#define MPII_EVT_SASCH_REASON_CMP_INTERNAL_DEV_RESET	(0x0e)
#define MPII_EVT_SASCH_REASON_CMP_TASK_ABORT_INTERNAL	(0x0f)
#define MPII_EVT_SASCH_REASON_SATA_INIT_FAILURE		(0x10)
	u_int8_t		reserved1;

	u_int8_t		asc;
	u_int8_t		ascq;
	u_int16_t		dev_handle;

	u_int32_t		reserved2;

	u_int64_t		sas_addr;

	u_int16_t		lun[4];
} __packed;

struct mpii_msg_eventack_request {
	u_int16_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int8_t		reserved2[3];
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int16_t		event;
	u_int16_t		reserved4;

	u_int32_t		event_context;
} __packed;

struct mpii_msg_eventack_reply {
	u_int16_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int8_t		reserved2[3];
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int16_t		reserved4;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;
} __packed;

struct mpii_msg_fwupload_request {
	u_int8_t		image_type;
#define MPII_FWUPLOAD_IMAGETYPE_IOC_FW			(0x00)
#define MPII_FWUPLOAD_IMAGETYPE_NV_FW			(0x01)
#define MPII_FWUPLOAD_IMAGETYPE_NV_BACKUP		(0x05)
#define MPII_FWUPLOAD_IMAGETYPE_NV_MANUFACTURING	(0x06)
#define MPII_FWUPLOAD_IMAGETYPE_NV_CONFIG_1		(0x07)
#define MPII_FWUPLOAD_IMAGETYPE_NV_CONFIG_2		(0x08)
#define MPII_FWUPLOAD_IMAGETYPE_NV_MEGARAID		(0x09)
#define MPII_FWUPLOAD_IMAGETYPE_NV_COMPLETE		(0x0a)
#define MPII_FWUPLOAD_IMAGETYPE_COMMON_BOOT_BLOCK	(0x0b)
	u_int8_t		reserved1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int8_t		reserved2[3];
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int32_t		reserved4;

	u_int32_t		reserved5;

	struct mpii_fw_tce	tce;

	/* followed by an sgl */
} __packed;

struct mpii_msg_fwupload_reply {
	u_int8_t		image_type;
	u_int8_t		reserved1;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int8_t		reserved2[3];
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int16_t		reserved4;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int32_t		actual_image_size;
} __packed;

struct mpii_msg_scsi_io {
	u_int16_t		dev_handle;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		reserved1;
	u_int8_t		reserved2;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;
	
	u_int32_t		sense_buffer_low_address;

	u_int16_t		sgl_flags;
	u_int8_t		sense_buffer_length;
	u_int8_t		reserved4;

	u_int8_t		sgl_offset0;
	u_int8_t		sgl_offset1;
	u_int8_t		sgl_offset2;
	u_int8_t		sgl_offset3;

	u_int32_t		skip_count;

	u_int32_t		data_length;

	u_int32_t		bidirectional_data_length;

	u_int16_t		io_flags;
	u_int16_t		eedp_flags;

	u_int32_t		eedp_block_size;

	u_int32_t		secondary_reference_tag;

	u_int16_t		secondary_application_tag;
	u_int16_t		application_tag_translation_mask;

	u_int16_t		lun[4];

/* the following 16 bits are defined in MPI2 as the control field */
	u_int8_t		reserved5;
	u_int8_t		tagging;
#define MPII_SCSIIO_ATTR_SIMPLE_Q			(0x0)
#define MPII_SCSIIO_ATTR_HEAD_OF_Q			(0x1)
#define MPII_SCSIIO_ATTR_ORDERED_Q			(0x2)
#define MPII_SCSIIO_ATTR_ACA_Q				(0x4)
#define MPII_SCSIIO_ATTR_UNTAGGED			(0x5)
#define MPII_SCSIIO_ATTR_NO_DISCONNECT			(0x7)
	u_int8_t		reserved6;
	u_int8_t		direction;
#define MPII_SCSIIO_DIR_NONE				(0x0)
#define MPII_SCSIIO_DIR_WRITE				(0x1)
#define MPII_SCSIIO_DIR_READ				(0x2)

#define	MPII_CDB_LEN					(32)
	u_int8_t		cdb[MPII_CDB_LEN];

	/* followed by an sgl */
} __packed;

struct mpii_msg_scsi_io_error {
	u_int16_t		dev_handle;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		reserved1;
	u_int8_t		reserved2;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved3;

	u_int8_t		scsi_status;
	/* XXX JPG validate this */
#if notyet
#define MPII_SCSIIO_ERR_STATUS_SUCCESS
#define MPII_SCSIIO_ERR_STATUS_CHECK_COND
#define MPII_SCSIIO_ERR_STATUS_BUSY
#define MPII_SCSIIO_ERR_STATUS_INTERMEDIATE
#define MPII_SCSIIO_ERR_STATUS_INTERMEDIATE_CONDMET
#define MPII_SCSIIO_ERR_STATUS_RESERVATION_CONFLICT
#define MPII_SCSIIO_ERR_STATUS_CMD_TERM
#define MPII_SCSIIO_ERR_STATUS_TASK_SET_FULL
#define MPII_SCSIIO_ERR_STATUS_ACA_ACTIVE
#endif
	u_int8_t		scsi_state;
#define MPII_SCSIIO_ERR_STATE_AUTOSENSE_VALID		(1<<0)
#define MPII_SCSIIO_ERR_STATE_AUTOSENSE_FAILED		(1<<1)
#define MPII_SCSIIO_ERR_STATE_NO_SCSI_STATUS		(1<<2)
#define MPII_SCSIIO_ERR_STATE_TERMINATED		(1<<3)
#define MPII_SCSIIO_ERR_STATE_RESPONSE_INFO_VALID	(1<<4)
#define MPII_SCSIIO_ERR_STATE_QUEUE_TAG_REJECTED	(0xffff)
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int32_t		transfer_count;

	u_int32_t		sense_count;

	u_int32_t		response_info;

	u_int16_t		task_tag;
	u_int16_t		reserved4;

	u_int32_t		bidirectional_transfer_count;

	u_int32_t		reserved5;

	u_int32_t		reserved6;
} __packed;

struct mpii_request_descriptor {
	u_int8_t		request_flags;
	u_int8_t		vf_id;
	u_int16_t		smid;

	u_int16_t		lmid;
	/*
	 * the following field is descriptor type dependent
	 *    default - undefined 
	 *    scsi io - device handle
	 *    high priority - reserved
	 */
	u_int16_t		type_dependent;
} __packed;

struct mpii_reply_descriptor {
	u_int8_t		reply_flags;
#define MPII_REPLY_DESCR_FLAGS_TYPE_MASK               (0x0f)
#define MPII_REPLY_DESCR_FLAGS_SCSI_IO_SUCCESS         (0x00)
#define MPII_REPLY_DESCR_FLAGS_ADDRESS_REPLY           (0x01)
#define MPII_REPLY_DESCR_FLAGS_TARGETASSIST_SUCCESS    (0x02)
#define MPII_REPLY_DESCR_FLAGS_TARGET_COMMAND_BUFFER   (0x03)
#define MPII_REPLY_DESCR_FLAGS_UNUSED                  (0x0f)
	u_int8_t		vf_id;
	/*
	 * the following field is reply descriptor type dependent
	 *     default - undefined
	 *     scsi io success - smid 
	 *     address reply - smid 
	 */
	u_int16_t		type_dependent1;

	/*
	 * the following field is reply descriptor type dependent
	 *     default - undefined
	 *     scsi io success - bottom 16 bits is task tag 
	 *     address reply - reply frame address
	 */
	u_int32_t		type_dependent2;
} __packed;

struct mpii_request_header {
	u_int16_t		function_dependent1;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		function_dependent2;
	u_int8_t		function_dependent3;
	u_int8_t		message_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved;
} __packed;

/* XXX JPG delete this? */
struct mpii_msg_scsi_task_request {
	u_int8_t		target_id;
	u_int8_t		bus;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int8_t		reserved1;
	u_int8_t		task_type;
#define MPII_MSG_SCSI_TASK_TYPE_ABORT_TASK		(0x01)
#define MPII_MSG_SCSI_TASK_TYPE_ABRT_TASK_SET		(0x02)
#define MPII_MSG_SCSI_TASK_TYPE_TARGET_RESET		(0x03)
#define MPII_MSG_SCSI_TASK_TYPE_RESET_BUS		(0x04)
#define MPII_MSG_SCSI_TASK_TYPE_LOGICAL_UNIT_RESET	(0x05)
	u_int8_t		reserved2;
	u_int8_t		msg_flags;

	u_int32_t		msg_context;

	u_int16_t		lun[4];

	u_int32_t		reserved3[7];

	u_int32_t		target_msg_context;
} __packed;

/* XXX JPG delete this? */
struct mpii_msg_scsi_task_reply {
	u_int8_t		target_id;
	u_int8_t		bus;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int8_t		response_code;
	u_int8_t		task_type;
	u_int8_t		reserved1;
	u_int8_t		msg_flags;

	u_int32_t		msg_context;

	u_int16_t		reserved2;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	u_int32_t		termination_count;
} __packed;

struct mpii_cfg_hdr {
	u_int8_t		page_version;
	u_int8_t		page_length;
	u_int8_t		page_number;
	u_int8_t		page_type;
#define MPII_CONFIG_REQ_PAGE_TYPE_ATTRIBUTE		(0xf0)
#define MPI2_CONFIG_PAGEATTR_READ_ONLY              	(0x00)
#define MPI2_CONFIG_PAGEATTR_CHANGEABLE             	(0x10)
#define MPI2_CONFIG_PAGEATTR_PERSISTENT             	(0x20)

#define MPII_CONFIG_REQ_PAGE_TYPE_MASK			(0x0f)
#define MPII_CONFIG_REQ_PAGE_TYPE_IO_UNIT		(0x00)
#define MPII_CONFIG_REQ_PAGE_TYPE_IOC			(0x01)
#define MPII_CONFIG_REQ_PAGE_TYPE_BIOS			(0x02)
#define MPII_CONFIG_REQ_PAGE_TYPE_RAID_VOL		(0x08)
#define MPII_CONFIG_REQ_PAGE_TYPE_MANUFACTURING		(0x09)
#define MPII_CONFIG_REQ_PAGE_TYPE_RAID_PD		(0x0a)
#define MPII_CONFIG_REQ_PAGE_TYPE_EXTENDED		(0x0f)
} __packed;

struct mpii_ecfg_hdr {
	u_int8_t		page_version;
	u_int8_t		reserved1;
	u_int8_t		page_number;
	u_int8_t		page_type;

	u_int16_t		ext_page_length;
	u_int8_t		ext_page_type;
#define MPII_CONFIG_REQ_PAGE_TYPE_SAS_DEVICE		(0x12)
#define MPII_CONFIG_REQ_PAGE_TYPE_RAID_CONFIG		(0x16)
#define MPII_CONFIG_REQ_PAGE_TYPE_DRIVER_MAPPING	(0x17)
	u_int8_t		reserved2;
} __packed;

struct mpii_msg_config_request {
	u_int8_t		action;
#define MPII_CONFIG_REQ_ACTION_PAGE_HEADER		(0x00)
#define MPII_CONFIG_REQ_ACTION_PAGE_READ_CURRENT	(0x01)
#define MPII_CONFIG_REQ_ACTION_PAGE_WRITE_CURRENT	(0x02)
#define MPII_CONFIG_REQ_ACTION_PAGE_DEFAULT		(0x03)
#define MPII_CONFIG_REQ_ACTION_PAGE_WRITE_NVRAM		(0x04)
#define MPII_CONFIG_REQ_ACTION_PAGE_READ_DEFAULT	(0x05)
#define MPII_CONFIG_REQ_ACTION_PAGE_READ_NVRAM		(0x06)
	u_int8_t		sgl_flags;
	u_int8_t		chain_offset;
	u_int8_t		function;

	u_int16_t		ext_page_len;
	u_int8_t		ext_page_type;
#define MPII_CONFIG_REQ_EXTPAGE_TYPE_SAS_IO_UNIT	(0x10)
#define MPII_CONFIG_REQ_EXTPAGE_TYPE_SAS_EXPANDER	(0x11)
#define MPII_CONFIG_REQ_EXTPAGE_TYPE_SAS_DEVICE		(0x12)
#define MPII_CONFIG_REQ_EXTPAGE_TYPE_SAS_PHY		(0x13)
#define MPII_CONFIG_REQ_EXTPAGE_TYPE_LOG		(0x14)
#define MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE            	(0x15)
#define MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG         	(0x16)
#define MPI2_CONFIG_EXTPAGETYPE_DRIVER_MAPPING      	(0x17)
#define MPI2_CONFIG_EXTPAGETYPE_SAS_PORT            	(0x18)
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved1;

	u_int32_t		reserved2[2];

	struct mpii_cfg_hdr	config_header;

	u_int32_t		page_address;
/* XXX lots of defns here */

	struct mpii_sge		page_buffer;
} __packed;

struct mpii_msg_config_reply {
	u_int8_t		action;
	u_int8_t		sgl_flags;
	u_int8_t		msg_length;
	u_int8_t		function;

	u_int16_t		ext_page_length;
	u_int8_t		ext_page_type;
	u_int8_t		msg_flags;

	u_int8_t		vp_id;
	u_int8_t		vf_id;
	u_int16_t		reserved1;

	u_int16_t		reserved2;
	u_int16_t		ioc_status;

	u_int32_t		ioc_loginfo;

	struct mpii_cfg_hdr	config_header;
} __packed;

struct mpii_cfg_manufacturing_pg0 {
	struct mpii_cfg_hdr	config_header;

	char			chip_name[16];
	char			chip_revision[8];
	char			board_name[16];
	char			board_assembly[16];
	char			board_tracer_number[16];
} __packed;

struct mpii_cfg_ioc_pg1 {
	struct mpii_cfg_hdr     config_header;

	u_int32_t       flags;

	u_int32_t       coalescing_timeout;
#define	MPII_CFG_IOC_1_REPLY_COALESCING			(1<<0)

	u_int8_t        coalescing_depth;
	u_int8_t        pci_slot_num;
	u_int8_t        pci_bus_num;
	u_int8_t        pci_domain_segment;

	u_int32_t       reserved1;

	u_int32_t       reserved2;
} __packed;

struct mpii_cfg_ioc_pg3 {
	struct mpii_cfg_hdr	config_header;

	u_int8_t		no_phys_disks;
	u_int8_t		reserved[3];

	/* followed by a list of mpii_cfg_raid_physdisk structs */
} __packed;

struct mpii_cfg_ioc_pg8 {
	struct mpii_cfg_hdr	config_header;

	u_int8_t		num_devs_per_enclosure;
	u_int8_t		reserved1;
	u_int16_t		reserved2;

	u_int16_t		max_persistent_entries;
	u_int16_t		max_num_physical_mapped_ids;

	u_int16_t		flags;
#define	MPII_IOC_PG8_FLAGS_DA_START_SLOT_1		(1<<5)
#define MPII_IOC_PG8_FLAGS_RESERVED_TARGETID_0		(1<<4)
#define MPII_IOC_PG8_FLAGS_MAPPING_MODE_MASK		(0x0000000e)
#define MPII_IOC_PG8_FLAGS_DEVICE_PERSISTENCE_MAPPING	(0<<1)
#define MPII_IOC_PG8_FLAGS_ENCLOSURE_SLOT_MAPPING	(1<<1)
#define MPII_IOC_PG8_FLAGS_DISABLE_PERSISTENT_MAPPING	(1<<0)
#define	MPII_IOC_PG8_FLAGS_ENABLE_PERSISTENT_MAPPING	(0<<0)
	u_int16_t		reserved3;

	u_int16_t		ir_volume_mapping_flags;
#define	MPII_IOC_PG8_IRFLAGS_VOLUME_MAPPING_MODE_MASK	(0x00000003)
#define	MPII_IOC_PG8_IRFLAGS_LOW_VOLUME_MAPPING		(0<<0)
#define	MPII_IOC_PG8_IRFLAGS_HIGH_VOLUME_MAPPING	(1<<0)
	u_int16_t		reserved4;
	
	u_int32_t		reserved5;
} __packed;

struct mpii_cfg_raid_physdisk {
	u_int8_t		phys_disk_id;
	u_int8_t		phys_disk_bus;
	u_int8_t		phys_disk_ioc;
	u_int8_t		phys_disk_num;
} __packed;

struct mpii_cfg_fc_port_pg0 {
	struct mpii_cfg_hdr	config_header;

	u_int32_t		flags;

	u_int8_t		mpii_port_nr;
	u_int8_t		link_type;
	u_int8_t		port_state;
	u_int8_t		reserved1;

	u_int32_t		port_id;

	u_int64_t		wwnn;

	u_int64_t		wwpn;

	u_int32_t		supported_service_class;

	u_int32_t		supported_speeds;

	u_int32_t		current_speed;

	u_int32_t		max_frame_size;

	u_int64_t		fabric_wwnn;

	u_int64_t		fabric_wwpn;

	u_int32_t		discovered_port_count;

	u_int32_t		max_initiators;

	u_int8_t		max_aliases_supported;
	u_int8_t		max_hard_aliases_supported;
	u_int8_t		num_current_aliases;
	u_int8_t		reserved2;
} __packed;

struct mpii_cfg_fc_port_pg1 {
	struct mpii_cfg_hdr	config_header;

	u_int32_t		flags;

	u_int64_t		noseepromwwnn;

	u_int64_t		noseepromwwpn;

	u_int8_t		hard_alpa;
	u_int8_t		link_config;
	u_int8_t		topology_config;
	u_int8_t		alt_connector;

	u_int8_t		num_req_aliases;
	u_int8_t		rr_tov;
	u_int8_t		initiator_dev_to;
	u_int8_t		initiator_lo_pend_to;
} __packed;

struct mpii_cfg_fc_device_pg0 {
	struct mpii_cfg_hdr	config_header;

	u_int64_t		wwnn;

	u_int64_t		wwpn;

	u_int32_t		port_id;

	u_int8_t		protocol;
	u_int8_t		flags;
	u_int16_t		bb_credit;

	u_int16_t		max_rx_frame_size;
	u_int8_t		adisc_hard_alpa;
	u_int8_t		port_nr;

	u_int8_t		fc_ph_low_version;
	u_int8_t		fc_ph_high_version;
	u_int8_t		current_target_id;
	u_int8_t		current_bus;
} __packed;

#define MPII_CFG_RAID_VOL_ADDR_HANDLE		(1<<28)

struct mpii_cfg_raid_vol_pg0 {
	struct mpii_cfg_hdr	config_header;

	u_int16_t		volume_handle;
	u_int8_t		volume_state;
#define MPII_CFG_RAID_VOL_0_STATE_MISSING		(0x00)
#define MPII_CFG_RAID_VOL_0_STATE_FAILED		(0x01)
#define MPII_CFG_RAID_VOL_0_STATE_INITIALIZING		(0x02)
#define MPII_CFG_RAID_VOL_0_STATE_ONLINE		(0x03)
#define MPII_CFG_RAID_VOL_0_STATE_DEGRADED		(0x04)
#define MPII_CFG_RAID_VOL_0_STATE_OPTIMAL		(0x05)
	u_int8_t		volume_type;
#define MPII_CFG_RAID_VOL_0_TYPE_RAID0			(0x00)
#define MPII_CFG_RAID_VOL_0_TYPE_RAID1E			(0x01)
#define MPII_CFG_RAID_VOL_0_TYPE_RAID1			(0x02)
#define MPII_CFG_RAID_VOL_0_TYPE_RAID10			(0x05)
#define MPII_CFG_RAID_VOL_0_TYPE_UNKNOWN		(0xff)

	u_int32_t		volume_status;
#define MPII_CFG_RAID_VOL_0_STATUS_SCRUB		(1<<20)
#define MPII_CFG_RAID_VOL_0_STATUS_RESYNC		(1<<16)

	u_int16_t		volume_settings;
	u_int8_t		hot_spare_pool;
	u_int8_t		reserved1;

	u_int64_t		max_lba;

	u_int32_t		stripe_size;

	u_int16_t		block_size;
	u_int16_t		reserved2;

	u_int8_t		phys_disk_types;
	u_int8_t		resync_rate;
	u_int16_t		data_scrub_rate;

	u_int8_t		num_phys_disks;
	u_int16_t		reserved3;
	u_int8_t		inactive_status;
#define MPII_CFG_RAID_VOL_0_INACTIVE_UNKNOWN		(0x00)
#define MPII_CFG_RAID_VOL_0_INACTIVE_STALE_META		(0x01)
#define MPII_CFG_RAID_VOL_0_INACTIVE_FOREIGN_VOL	(0x02)
#define MPII_CFG_RAID_VOL_0_INACTIVE_NO_RESOURCES	(0x03)
#define MPII_CFG_RAID_VOL_0_INACTIVE_CLONED_VOL		(0x04)
#define MPII_CFG_RAID_VOL_0_INACTIVE_INSUF_META		(0x05)

	/* followed by a list of mpii_cfg_raid_vol_pg0_physdisk structs */
} __packed;

struct mpii_cfg_raid_vol_pg0_physdisk {
	u_int8_t		raid_set_num;
	u_int8_t		phys_disk_map;
	u_int8_t		phys_disk_num;
	u_int8_t		reserved;
} __packed;

struct mpii_cfg_raid_vol_pg1 {
	struct mpii_cfg_hdr	config_header;

	u_int8_t		volume_id;
	u_int8_t		volume_bus;
	u_int8_t		volume_ioc;
	u_int8_t		reserved1;

	u_int8_t		guid[24];

	u_int8_t		name[32];

	u_int64_t		wwid;

	u_int32_t		reserved2;

	u_int32_t		reserved3;
} __packed;

#define MPII_CFG_RAID_PHYS_DISK_ADDR_NUMBER		(1<<28)

struct mpii_cfg_raid_physdisk_pg0 {
	struct mpii_cfg_hdr	config_header;

	u_int16_t		dev_handle;
	u_int8_t		reserved1;
	u_int8_t		phys_disk_num;

	u_int8_t		enc_id;
	u_int8_t		enc_bus;
	u_int8_t		hot_spare_pool;
	u_int8_t		enc_type;
#define MPII_CFG_RAID_PHYDISK_0_ENCTYPE_NONE		(0x0)
#define MPII_CFG_RAID_PHYDISK_0_ENCTYPE_SAFTE		(0x1)
#define MPII_CFG_RAID_PHYDISK_0_ENCTYPE_SES		(0x2)

	u_int32_t		reserved2;

	u_int8_t		vendor_id[8];

	u_int8_t		product_id[16];

	u_int8_t		product_rev[4];

	u_int8_t		serial[32];

	u_int32_t		reserved3;

	u_int8_t		phys_disk_state;
#define MPII_CFG_RAID_PHYDISK_0_STATE_NOTCONFIGURED	(0x00)
#define MPII_CFG_RAID_PHYDISK_0_STATE_NOTCOMPATIBLE	(0x01)
#define MPII_CFG_RAID_PHYDISK_0_STATE_OFFLINE		(0x02)
#define MPII_CFG_RAID_PHYDISK_0_STATE_ONLINE		(0x03)
#define MPII_CFG_RAID_PHYDISK_0_STATE_HOTSPARE		(0x04)
#define MPII_CFG_RAID_PHYDISK_0_STATE_DEGRADED		(0x05)
#define MPII_CFG_RAID_PHYDISK_0_STATE_REBUILDING	(0x06)
#define MPII_CFG_RAID_PHYDISK_0_STATE_OPTIMAL		(0x07)
	u_int8_t		offline_reason;
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_MISSING		(0x01)
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_FAILED		(0x03)
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_INITIALIZING	(0x04)
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_REQUESTED	(0x05)
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_FAILEDREQ	(0x06)
#define MPII_CFG_RAID_PHYDISK_0_OFFLINE_OTHER		(0xff)

	u_int8_t		incompat_reason;
	u_int8_t		phys_disk_attrs;

	u_int32_t		phys_disk_status;
#define MPII_CFG_RAID_PHYDISK_0_STATUS_OUTOFSYNC	(1<<0)
#define MPII_CFG_RAID_PHYDISK_0_STATUS_QUIESCED		(1<<1)

	u_int64_t		dev_max_lba;

	u_int64_t		host_max_lba;

	u_int64_t		coerced_max_lba;

	u_int16_t		block_size;
	u_int16_t		reserved4;

	u_int32_t		reserved5;
} __packed;

struct mpii_cfg_raid_physdisk_pg1 {
	struct mpii_cfg_hdr	config_header;

	u_int8_t		num_phys_disk_paths;
	u_int8_t		phys_disk_num;
	u_int16_t		reserved1;

	u_int32_t		reserved2;

	/* followed by mpii_cfg_raid_physdisk_path structs */
} __packed;

struct mpii_cfg_raid_physdisk_path {
	u_int8_t		phys_disk_id;
	u_int8_t		phys_disk_bus;
	u_int16_t		reserved1;

	u_int64_t		wwwid;

	u_int64_t		owner_wwid;

	u_int8_t		ownder_id;
	u_int8_t		reserved2;
	u_int16_t		flags;
#define MPII_CFG_RAID_PHYDISK_PATH_INVALID	(1<<0)
#define MPII_CFG_RAID_PHYDISK_PATH_BROKEN	(1<<1)
} __packed;

#define MPII_CFG_SAS_DEV_ADDR_NEXT		(0<<28)
#define MPII_CFG_SAS_DEV_ADDR_BUS		(1<<28)
#define MPII_CFG_SAS_DEV_ADDR_HANDLE		(2<<28)

struct mpii_cfg_sas_dev_pg0 {
	struct mpii_ecfg_hdr	config_header;

	u_int16_t		slot;
	u_int16_t		enc_handle;

	u_int64_t		sas_addr;

	u_int16_t		parent_dev_handle;
	u_int8_t		phy_num;
	u_int8_t		access_status;

	u_int16_t		dev_handle;
	u_int8_t		target;
	u_int8_t		bus;

	u_int32_t		device_info;
#define MPII_CFG_SAS_DEV_0_DEVINFO_TYPE			(0x7)
#define MPII_CFG_SAS_DEV_0_DEVINFO_TYPE_NONE		(0x0)
#define MPII_CFG_SAS_DEV_0_DEVINFO_TYPE_END		(0x1)
#define MPII_CFG_SAS_DEV_0_DEVINFO_TYPE_EDGE_EXPANDER	(0x2)
#define MPII_CFG_SAS_DEV_0_DEVINFO_TYPE_FANOUT_EXPANDER	(0x3)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SATA_HOST		(1<<3)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SMP_INITIATOR	(1<<4)
#define MPII_CFG_SAS_DEV_0_DEVINFO_STP_INITIATOR	(1<<5)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SSP_INITIATOR	(1<<6)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SATA_DEVICE		(1<<7)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SMP_TARGET		(1<<8)
#define MPII_CFG_SAS_DEV_0_DEVINFO_STP_TARGET		(1<<9)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SSP_TARGET		(1<<10)
#define MPII_CFG_SAS_DEV_0_DEVINFO_DIRECT_ATTACHED	(1<<11)
#define MPII_CFG_SAS_DEV_0_DEVINFO_LSI_DEVICE		(1<<12)
#define MPII_CFG_SAS_DEV_0_DEVINFO_ATAPI_DEVICE		(1<<13)
#define MPII_CFG_SAS_DEV_0_DEVINFO_SEP_DEVICE		(1<<14)

	u_int16_t		flags;
#define MPII_CFG_SAS_DEV_0_FLAGS_DEV_PRESENT		(1<<0)
#define MPII_CFG_SAS_DEV_0_FLAGS_DEV_MAPPED		(1<<1)
#define MPII_CFG_SAS_DEV_0_FLAGS_DEV_MAPPED_PERSISTENT	(1<<2)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_PORT_SELECTOR	(1<<3)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_FUA		(1<<4)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_NCQ		(1<<5)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_SMART		(1<<6)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_LBA48		(1<<7)
#define MPII_CFG_SAS_DEV_0_FLAGS_UNSUPPORTED		(1<<8)
#define MPII_CFG_SAS_DEV_0_FLAGS_SATA_SETTINGS		(1<<9)
	u_int8_t		physical_port;
	u_int8_t		max_port_conn;

	u_int64_t		device_name;

	u_int8_t		port_groups;
	u_int8_t		dma_group;
	u_int8_t		ctrl_group;
	u_int8_t		reserved1;

	u_int64_t		reserved2;
} __packed;

struct mpii_cfg_bios_pg2 {
	struct mpii_cfg_hdr	config_header;

	u_int32_t		reserved1[6];

	u_int8_t		req_boot_device_form;
#define MPII_CFG_BIOS_PG2_DEVICE_FORM_MASK		(0xf)
#define	MPII_CFG_BIOS_PG2_DEVICE_FORM_NO_BOOT_DEVICE	(0x0)
#define MPII_CFG_BIOS_PG2_DEVICE_FORM_SAS_WWID		(0x5)
#define MPII_CFG_BIOS_PG2_DEVICE_FORM_ENCLOSURE_SLOT	(0x6)
#define MPII_CFG_BIOS_PG2_DEVICE_FORM_DEVICE_NAME	(0x7)
	u_int8_t		reserved2[3];

	u_int32_t		a;	

	u_int8_t		req_alt_boot_device_form;
	u_int8_t		reserved3[3];

	u_int32_t		b;

	u_int8_t		current_boot_device_form;
	u_int8_t		reserved4[3];

	u_int32_t		c;
} __packed;

#define MPII_CFG_RAID_CONFIG_ACTIVE_CONFIG		(2<<28)

struct mpii_cfg_raid_config_pg0 {
	struct	mpii_ecfg_hdr	config_header;

	u_int8_t		num_hot_spares;
	u_int8_t		num_phys_disks;
	u_int8_t		num_volumes;
	u_int8_t		config_num;

	u_int32_t		flags;
#define MPII_CFG_RAID_CONFIG_0_FLAGS_NATIVE		(0<<0)
#define MPII_CFG_RAID_CONFIG_0_FLAGS_FOREIGN		(1<<0)

	u_int32_t		config_guid[6];

	u_int32_t		reserved1;

	u_int8_t		num_elements;
	u_int8_t		reserved2[3];

	/* followed by struct mpii_raid_config_element structs */
} __packed;

struct mpii_raid_config_element {
	u_int16_t		element_flags;
#define MPII_RAID_CONFIG_ELEMENT_FLAG_VOLUME		(0x0)
#define MPII_RAID_CONFIG_ELEMENT_FLAG_VOLUME_PHYS_DISK	(0x1)
#define	MPII_RAID_CONFIG_ELEMENT_FLAG_HSP_PHYS_DISK	(0x2)
#define MPII_RAID_CONFIG_ELEMENT_ONLINE_CE_PHYS_DISK	(0x3)
	u_int16_t		vol_dev_handle;

	u_int8_t		hot_spare_pool;
	u_int8_t		phys_disk_num;
	u_int16_t		phys_disk_dev_handle;
} __packed;

struct mpii_cfg_dpm_pg0 {
	struct mpii_ecfg_hdr	config_header;
#define MPII_DPM_ADDRESS_FORM_MASK			(0xf0000000)
#define MPII_DPM_ADDRESS_FORM_ENTRY_RANGE		(0x00000000)
#define MPII_DPM_ADDRESS_ENTRY_COUNT_MASK		(0x0fff0000)
#define MPII_DPM_ADDRESS_ENTRY_COUNT_SHIFT		(16)
#define MPII_DPM_ADDRESS_START_ENTRY_MASK		(0x0000ffff)

	/* followed by struct mpii_dpm_entry structs */
} __packed;

struct mpii_dpm_entry {
	u_int64_t		physical_identifier;

	u_int16_t		mapping_information;
	u_int16_t		device_index;

	u_int32_t		physical_bits_mapping;

	u_int32_t		reserved1;
} __packed;

struct mpii_evt_sas_discovery {
	u_int8_t		flags;
#define	MPII_EVENT_SAS_DISC_FLAGS_DEV_CHANGE_MASK	(1<<1)
#define MPII_EVENT_SAS_DISC_FLAGS_DEV_CHANGE_NO_CHANGE	(0<<1)
#define MPII_EVENT_SAS_DISC_FLAGS_DEV_CHANGE_CHANGE	(1<<1)
#define MPII_EVENT_SAS_DISC_FLAGS_DISC_IN_PROG_MASK	(1<<0)
#define MPII_EVENT_SAS_DISC_FLAGS_DISC_NOT_IN_PROGRESS	(1<<0)
#define MPII_EVENT_SAS_DISC_FLAGS_DISC_IN_PROGRESS	(0<<0)
	u_int8_t		reason_code;
#define MPII_EVENT_SAS_DISC_REASON_CODE_STARTED		(0x01)
#define	MPII_EVENT_SAS_DISC_REASON_CODE_COMPLETED	(0x02)
	u_int8_t		physical_port;
	u_int8_t		reserved1;

	u_int32_t		discovery_status;
/* lots of defines go in here */
} __packed;

struct mpii_evt_ir_physical_disk {
	u_int16_t		reserved1;
	u_int8_t		reason_code;
#define MPII_EVENT_IR_PD_RC_SETTINGS_CHANGED		(0x01)
#define MPII_EVENT_IR_PD_RC_STATUS_FLAGS_CHANGED	(0x02)
#define MPII_EVENT_IR_PD_RC_STATUS_CHANGED		(0x03)
	u_int8_t		phys_disk_num;

	u_int16_t		phys_disk_dev_handle;
	u_int16_t		reserved2;

	u_int16_t		slot;
	u_int16_t		enclosure_handle;

	u_int32_t		new_value;
	u_int32_t		previous_value;
} __packed;

struct mpii_evt_sas_topo_change_list {
	u_int16_t		enclosure_handle;
	u_int16_t		expander_dev_handle;

	u_int8_t		num_phys;
	u_int8_t		reserved1[3];

	u_int8_t		num_entries;
	u_int8_t		start_phy_num;
	u_int8_t		exp_status;
#define	MPII_EVENT_SAS_TOPO_ES_ADDED			(0x01)
#define MPII_EVENT_SAS_TOPO_ES_NOT_RESPONDING		(0x02)
#define MPII_EVENT_SAS_TOPO_ES_RESPONDING		(0x03)
#define MPII_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING	(0x04)
	u_int8_t		physical_port;

	/* followed by num_entries number of struct mpii_evt_phy_entry */
} __packed;

struct mpii_evt_phy_entry {
	u_int16_t		attached_dev_handle;
	u_int8_t		link_rate;
#define MPII_EVENT_SAS_TOPO_LR_CURRENT_LINK_RATE_MASK	(0xf0)
#define MPII_EVENT_SAS_TOPO_LR_CURRENT_LINK_RATE_SHIFT	(4)
#define MPII_EVENT_SAS_TOPO_LR_PREVIOUS_LINK_RATE_MASK	(0x0f)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_UNKNOWN_RATE	(0x0)
#define MPII_EVENT_SAS_TOPO_LR_PHY_DISABLE		(0x1)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_FAIL_SPEED_NEG	(0x2)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_SATA_OOB_COMPLETE	(0x3)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_SATA_PORT_SEL	(0x4)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_SMP_RESET_IN_PROG	(0x5)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_1_5_GBPS		(0x8)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_3_0_GBPS		(0x9)
#define MPII_EVENT_SAS_TOPO_LR_PHY_EN_6_0_GBPS		(0xa)
	u_int8_t		phy_status;
#define MPII_EVENT_SAS_TOPO_PS_RC_MASK			(0x0f)
#define	MPII_EVENT_SAS_TOPO_PS_RC_TARG_ADDED		(0x01)
#define MPII_EVENT_SAS_TOPO_PS_RC_TARG_NO_RESPOND_MISS	(0x02)
#define MPII_EVENT_SAS_TOPO_PS_RC_PHY_LINK_STATE_CHANGE	(0x03)
#define MPII_EVENT_SAS_TOPO_PS_RC_PHY_LINK_STATE_NOCHNG	(0x04)
#define MPII_EVENT_SAS_TOPO_PS_RC_WITHIN_DELAY_TIMER	(0x05)
#define MPII_EVENT_SAS_TOPO_PS_PHY_VACANT_MASK		(0x80)
#define MPII_EVENT_SAS_TOPO_PS_PHY_VACANT_NOT_VACANT	(0x00)
#define MPII_EVENT_SAS_TOOP_PS_PHY_VACANT_ACCESS_DENIED	(0x80)
} __packed;

struct mpii_evt_ir_cfg_change_list {
	u_int8_t		num_elements;
	u_int16_t		reserved;
	u_int8_t		config_num;

	u_int32_t		flags;
#define MPII_EVT_IR_CFG_CHANGE_LIST_FLAGS_CFG_MASK	(0x1)
#define MPII_EVT_IR_CFG_CHANGE_LIST_FLAGS_CFG_NATIVE	(0)
#define MPII_EVT_IR_CFG_CHANGE_LIST_FLAGS_CFG_FOREIGN	(1)
	
	/* followed by num_elements struct mpii_evt_ir_cfg_elements */
} __packed;

struct mpii_evt_ir_cfg_element {
	u_int16_t		element_flags;
#define MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_MASK	(0xf)
#define MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_VOLUME	(0x0)
#define MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_VOL_PD	(0x1)
#define MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_HSP_PD	(0x2)
	u_int16_t		vol_dev_handle;

	u_int8_t		reason_code;
#define MPII_EVT_IR_CFG_ELEMENT_RC_ADDED		(0x01)
#define MPII_EVT_IR_CFG_ELEMENT_RC_REMOVED		(0x02)
#define MPII_EVT_IR_CFG_ELEMENT_RC_NO_CHANGE		(0x03)
#define MPII_EVT_IR_CFG_ELEMENT_RC_HIDE			(0x04)
#define MPII_EVT_IR_CFG_ELEMENT_RC_UNHIDE		(0x05)
#define MPII_EVT_IR_CFG_ELEMENT_RC_VOLUME_CREATED	(0x06)
#define MPII_EVT_IR_CFG_ELEMENT_RC_VOLUME_DELETED	(0x07)
#define MPII_EVT_IR_CFG_ELEMENT_RC_PD_CREATED		(0x08)
#define MPII_EVT_IR_CFG_ELEMENT_RC_PD_DELETED		(0x09)
	u_int8_t		phys_disk_num;
	u_int16_t		phys_disk_dev_handle;
} __packed;

/* #define MPII_DEBUG */
#ifdef MPII_DEBUG
#define DPRINTF(x...)		do { if (mpii_debug) printf(x); } while(0)
#define DNPRINTF(n,x...)	do { if (mpii_debug & (n)) printf(x); } while(0)
#define	MPII_D_CMD		(0x0001)
#define	MPII_D_INTR		(0x0002)
#define	MPII_D_MISC		(0x0004)
#define	MPII_D_DMA		(0x0008)
#define	MPII_D_IOCTL		(0x0010)
#define	MPII_D_RW		(0x0020)
#define	MPII_D_MEM		(0x0040)
#define	MPII_D_CCB		(0x0080)
#define	MPII_D_PPR		(0x0100)
#define	MPII_D_RAID		(0x0200)
#define	MPII_D_EVT		(0x0400)
#define MPII_D_CFG		(0x0800)
#define MPII_D_MAP		(0x1000)

uint32_t  mpii_debug = 0
		| MPII_D_CMD
		| MPII_D_INTR
		| MPII_D_MISC
		| MPII_D_DMA
		| MPII_D_IOCTL
		| MPII_D_RW
		| MPII_D_MEM
		| MPII_D_CCB
		| MPII_D_PPR
		| MPII_D_RAID
		| MPII_D_EVT 
		| MPII_D_CFG
		| MPII_D_MAP
	;
#else
#define DPRINTF(x...)
#define DNPRINTF(n,x...)
#endif

#define MPII_REQUEST_SIZE	(512)
#define MPII_REPLY_SIZE		(128)
#define MPII_REPLY_COUNT	PAGE_SIZE / MPII_REPLY_SIZE

/*
 * this is the max number of sge's we can stuff in a request frame:
 * sizeof(scsi_io) + sizeof(sense) + sizeof(sge) * 32 = MPII_REQUEST_SIZE
 */
#define MPII_MAX_SGL			(32)

#define MPII_MAX_REQUEST_CREDIT		(128)

struct mpii_dmamem {
	bus_dmamap_t		mdm_map;
	bus_dma_segment_t	mdm_seg;
	size_t			mdm_size;
	caddr_t			mdm_kva;
};
#define MPII_DMA_MAP(_mdm)	(_mdm)->mdm_map
#define MPII_DMA_DVA(_mdm)	(_mdm)->mdm_map->dm_segs[0].ds_addr
#define MPII_DMA_KVA(_mdm)	(void *)(_mdm)->mdm_kva

struct mpii_ccb_bundle {
	struct mpii_msg_scsi_io	mcb_io; /* sgl must follow */
	struct mpii_sge		mcb_sgl[MPII_MAX_SGL];
	struct scsi_sense_data	mcb_sense;
} __packed;

struct mpii_softc;

struct mpii_rcb {
	void			*rcb_reply;
	u_int32_t		rcb_reply_dva;
};

struct mpii_device {

	RB_ENTRY(mpii_device)	rb_entry;

	u_int16_t		dev_handle;
	u_int8_t		phy_num;
	u_int8_t		type;
#define MPII_DEV_TYPE_PD	(0x00)
#define MPII_DEV_TYPE_VD_PD	(0x01)
#define MPII_DEV_TYPE_VD	(0x02)
	
	u_int16_t		enclosure_handle;

	u_int16_t		expander_dev_handle;
	u_int8_t		physical_port;

	u_int32_t		wwid;

	u_int32_t		flags;
#define MPII_DEV_HIDDEN		(1<<0)
#define MPII_DEV_INTERFACE_SAS	(1<<4)
#define MPII_DEV_INTERFACE_SATA	(1<<5)
#define MPII_DEV_SCSI_ML_ATTACH (1<<8)
#define MPII_DEV_UNUSED		(1<<31)
};

int mpii_dev_cmp(struct mpii_device *, struct mpii_device *);

int
mpii_dev_cmp(struct mpii_device *a, struct mpii_device *b)
{
	return (a->dev_handle < b->dev_handle ? -1 : 
	    a->dev_handle > b->dev_handle);
}

RB_HEAD(mpii_dev_tree, mpii_device) mpii_dev_head = 
    RB_INITIALIZER(&mpii_dev_head);
RB_PROTOTYPE(mpii_dev_tree, mpii_device, rb_entry, mpii_dev_cmp)
RB_GENERATE(mpii_dev_tree, mpii_device, rb_entry, mpii_dev_cmp)

struct mpii_ccb {
	struct mpii_softc	*ccb_sc;
	int			ccb_smid;

	struct scsi_xfer	*ccb_xs;
	bus_dmamap_t		ccb_dmamap;

	bus_addr_t		ccb_offset;
	void			*ccb_cmd;
	bus_addr_t		ccb_cmd_dva;
	u_int16_t		ccb_dev_handle;

	volatile enum {
		MPII_CCB_FREE,
		MPII_CCB_READY,
		MPII_CCB_QUEUED
	}			ccb_state;

	void			(*ccb_done)(struct mpii_ccb *);
	struct mpii_rcb		*ccb_rcb;

	TAILQ_ENTRY(mpii_ccb)	ccb_link;
};

TAILQ_HEAD(mpii_ccb_list, mpii_ccb);

struct mpii_softc {
	struct device		sc_dev;
	struct scsi_link	sc_link;

	int			sc_flags;
#define MPII_F_RAID		(1<<1)

	struct scsibus_softc	*sc_scsibus;

	struct mpii_device	**sc_mpii_dev;

	bus_space_tag_t		sc_iot;
	bus_space_handle_t	sc_ioh;
	bus_size_t		sc_ios;
	bus_dma_tag_t		sc_dmat;

	u_int8_t		sc_porttype;
	int			sc_request_depth;
	int			sc_num_reply_frames;
	int			sc_reply_free_qdepth;
	int			sc_reply_post_qdepth;
	int			sc_maxchdepth;
	int			sc_first_sgl_len;
	int			sc_chain_len;
	int			sc_max_sgl_len;
	
	u_int8_t		sc_ir_firmware;
	u_int8_t		sc_ioc_event_replay;
	u_int16_t		sc_max_enclosures;
	u_int16_t		sc_max_expanders;
	u_int8_t		sc_max_volumes;
	u_int16_t		sc_max_devices;
	u_int16_t		sc_max_dpm_entries;
	u_int8_t		sc_dpm_enabled;
	u_int8_t		sc_num_reserved_entries;
	u_int8_t		sc_reserve_tid0;
	u_int16_t		sc_vd_id_low;
	u_int16_t		sc_vd_id_hi;
	u_int16_t		sc_pd_id_start;
	u_int16_t		sc_pd_count;
	u_int16_t		sc_vd_count;
	u_int8_t		sc_num_channels;
	/* XXX not sure these below will stay */
	u_int8_t		sc_num_enclosure_table_entries;
	u_int32_t		sc_pending_map_events;
	u_int8_t		sc_tracking_map_events;
	int			sc_discovery_in_progress;
	/* end list of likely to be cut entries */
	int			sc_target;
	int			sc_ioc_number;
	u_int8_t		sc_vf_id;
	u_int8_t		sc_num_ports;

	struct mpii_ccb		*sc_ccbs;
	struct mpii_ccb_list	sc_ccb_free;

	struct mpii_dmamem	*sc_requests;

	struct mpii_dmamem	*sc_replies;
	struct mpii_rcb		*sc_rcbs;

	struct mpii_dmamem	*sc_reply_postq;
	struct mpii_reply_descriptor	*sc_reply_postq_kva;	
	int			sc_reply_post_host_index;

	struct mpii_dmamem	*sc_reply_freeq;
	int			sc_reply_free_host_index;
	
	/* scsi ioctl from sd device */
	int			(*sc_ioctl)(struct device *, u_long, caddr_t);

	struct rwlock		sc_lock;
	struct mpii_cfg_dpm_pg0	*sc_dpm_pg0;
	struct mpii_cfg_bios_pg2 *sc_bios_pg2;

	struct ksensor		*sc_sensors;
	struct ksensordev	sc_sensordev;
};

int	mpii_attach(struct mpii_softc *);
void	mpii_detach(struct mpii_softc *);
int	mpii_intr(void *);

int	mpii_pci_match(struct device *, void *, void *);
void	mpii_pci_attach(struct device *, struct device *, void *);
int	mpii_pci_detach(struct device *, int);

struct mpii_pci_softc {
	struct mpii_softc	psc_mpii;

	pci_chipset_tag_t	psc_pc;
	pcitag_t		psc_tag;

	void			*psc_ih;
};

struct cfattach mpii_pci_ca = {
	sizeof(struct mpii_pci_softc), mpii_pci_match, mpii_pci_attach,
	mpii_pci_detach
};

#define PREAD(s, r)	pci_conf_read((s)->psc_pc, (s)->psc_tag, (r))
#define PWRITE(s, r, v)	pci_conf_write((s)->psc_pc, (s)->psc_tag, (r), (v))

static const struct pci_matchid mpii_devices[] = {
	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2008 } 
};

int
mpii_pci_match(struct device *parent, void *match, void *aux)
{
	return (pci_matchbyid(aux, mpii_devices, nitems(mpii_devices)));
}

void
mpii_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct mpii_pci_softc		*psc = (void *)self;
	struct mpii_softc		*sc = &psc->psc_mpii;
	struct pci_attach_args		*pa = aux;
	pcireg_t			memtype;
	int				r;
	pci_intr_handle_t		ih;
	const char			*intrstr;
#ifdef __sparc64__
	int node;
#endif

	psc->psc_pc = pa->pa_pc;
	psc->psc_tag = pa->pa_tag;
	psc->psc_ih = NULL;
	sc->sc_dmat = pa->pa_dmat;
	sc->sc_ios = 0;
	sc->sc_target = -1;

	/* find the appropriate memory base */
	for (r = PCI_MAPREG_START; r < PCI_MAPREG_END; r += sizeof(memtype)) {
		memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag, r);
		if ((memtype & PCI_MAPREG_TYPE_MASK) == PCI_MAPREG_TYPE_MEM)
			break;
	}
	if (r >= PCI_MAPREG_END) {
		printf(": unable to locate system interface registers\n");
		return;
	}

	if (pci_mapreg_map(pa, r, memtype, 0, &sc->sc_iot, &sc->sc_ioh,
	    NULL, &sc->sc_ios, 0xFF) != 0) {
		printf(": unable to map system interface registers\n");
		return;
	}

	/* disable the expansion rom */
	PWRITE(psc, PCI_ROM_REG, PREAD(psc, PCI_ROM_REG) & ~PCI_ROM_ENABLE);

	/* hook up the interrupt */
	if (pci_intr_map(pa, &ih)) {
		printf(": unable to map interrupt\n");
		goto unmap;
	}
	intrstr = pci_intr_string(psc->psc_pc, ih);
	psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO,
	    mpii_intr, sc, sc->sc_dev.dv_xname);
	if (psc->psc_ih == NULL) {
		printf(": unable to map interrupt%s%s\n",
		    intrstr == NULL ? "" : " at ",
		    intrstr == NULL ? "" : intrstr);
		goto unmap;
	}
	printf(": %s", intrstr);
	
#ifdef __sparc64__
		/*
		 * Walk up the Open Firmware device tree until we find a
		 * "scsi-initiator-id" property.
		 */
		node = PCITAG_NODE(pa->pa_tag);
		while (node) {
			if (OF_getprop(node, "scsi-initiator-id",
			    &sc->sc_target, sizeof(sc->sc_target)) ==
			    sizeof(sc->sc_target))
				break;
			node = OF_parent(node);
#endif
	
	if (mpii_attach(sc) != 0) {
		/* error printed by mpii_attach */
		goto deintr;
	}

	return;

deintr:
	pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
	psc->psc_ih = NULL;
unmap:
	bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
	sc->sc_ios = 0;
}

int
mpii_pci_detach(struct device *self, int flags)
{
	struct mpii_pci_softc		*psc = (struct mpii_pci_softc *)self;
	struct mpii_softc		*sc = &psc->psc_mpii;

	mpii_detach(sc);

	if (psc->psc_ih != NULL) {
		pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
		psc->psc_ih = NULL;
	}
	if (sc->sc_ios != 0) {
		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
		sc->sc_ios = 0;
	}

	return (0);
}

struct cfdriver mpii_cd = {
	NULL,
	"mpii",
	DV_DULL
};

int		mpii_scsi_cmd(struct scsi_xfer *);
void		mpii_scsi_cmd_done(struct mpii_ccb *);
void		mpii_minphys(struct buf *bp, struct scsi_link *sl);
int		mpii_scsi_probe(struct scsi_link *);
int		mpii_scsi_ioctl(struct scsi_link *, u_long, caddr_t,
		    int, struct proc *);

struct scsi_adapter mpii_switch = {
	mpii_scsi_cmd,
	mpii_minphys, 
	mpii_scsi_probe, /* XXX JPG scsi_probe may prove useful for mapping nonsense */
	NULL,
	mpii_scsi_ioctl
};

struct scsi_device mpii_dev = {
	NULL,
	NULL,
	NULL,
	NULL
};

struct mpii_dmamem 	*mpii_dmamem_alloc(struct mpii_softc *, size_t);
void		mpii_dmamem_free(struct mpii_softc *,
		    struct mpii_dmamem *);
int		mpii_alloc_ccbs(struct mpii_softc *);
struct mpii_ccb *mpii_get_ccb(struct mpii_softc *);
void		mpii_put_ccb(struct mpii_softc *, struct mpii_ccb *);
int		mpii_alloc_replies(struct mpii_softc *);
int		mpii_alloc_queues(struct mpii_softc *);
int		mpii_alloc_dev(struct mpii_softc *);
void		mpii_push_reply(struct mpii_softc *, u_int32_t);
void		mpii_push_replies(struct mpii_softc *);

void		mpii_start(struct mpii_softc *, struct mpii_ccb *);
int		mpii_complete(struct mpii_softc *, struct mpii_ccb *, int);
int		mpii_poll(struct mpii_softc *, struct mpii_ccb *, int);
int		mpii_reply(struct mpii_softc *,
		    struct mpii_reply_descriptor *);

void		mpii_init_queues(struct mpii_softc *);

void		mpii_timeout_xs(void *);
int		mpii_load_xs(struct mpii_ccb *);

u_int32_t	mpii_read(struct mpii_softc *, bus_size_t);
void		mpii_write(struct mpii_softc *, bus_size_t, u_int32_t);
int		mpii_wait_eq(struct mpii_softc *, bus_size_t, u_int32_t,
		    u_int32_t);
int		mpii_wait_ne(struct mpii_softc *, bus_size_t, u_int32_t,
		    u_int32_t);

int		mpii_init(struct mpii_softc *);
int		mpii_reset_soft(struct mpii_softc *);
int		mpii_reset_hard(struct mpii_softc *);

int		mpii_handshake_send(struct mpii_softc *, void *, size_t);
int		mpii_handshake_recv_dword(struct mpii_softc *,
		    u_int32_t *);
int		mpii_handshake_recv(struct mpii_softc *, void *, size_t);

void		mpii_empty_done(struct mpii_ccb *);

int		mpii_iocinit(struct mpii_softc *);
int		mpii_iocfacts(struct mpii_softc *);
int		mpii_portfacts(struct mpii_softc *);
int		mpii_portenable(struct mpii_softc *);
int			mpii_cfg_coalescing(struct mpii_softc *);

int		mpii_eventnotify(struct mpii_softc *);
void		mpii_eventnotify_done(struct mpii_ccb *);
void		mpii_eventack(struct mpii_softc *,
		    struct mpii_msg_event_reply *);
void		mpii_eventack_done(struct mpii_ccb *);
void		mpii_event_process(struct mpii_softc *, 
		    struct mpii_msg_reply *);
void		mpii_event_process_sas_discovery(struct mpii_softc *,
		    struct mpii_msg_event_reply *);
void		mpii_event_process_sas_topo_change(struct mpii_softc *,
		    struct mpii_msg_event_reply *);
void		mpii_event_process_ir_cfg_change_list(struct mpii_softc *, 
		    struct mpii_msg_event_reply *);
void		mpii_event_process_ir_phys_disk(struct mpii_softc *,
		    struct mpii_msg_event_reply *);
/*
void		mpii_evt_sas(void *, void *);
*/
int		mpii_req_cfg_header(struct mpii_softc *, u_int8_t,
		    u_int8_t, u_int32_t, int, void *);
int		mpii_req_cfg_page(struct mpii_softc *, u_int32_t, int,
		    void *, int, void *, size_t);

int		mpii_get_ioc_pg8(struct mpii_softc *);
int		mpii_get_dpm(struct mpii_softc *);
int		mpii_get_dpm_pg0(struct mpii_softc *, struct mpii_cfg_dpm_pg0 *);
int 		mpii_get_bios_pg2(struct mpii_softc *);

#if NBIO > 0
int		mpii_ioctl(struct device *, u_long, caddr_t);
int		mpii_ioctl_inq(struct mpii_softc *, struct bioc_inq *);
int		mpii_ioctl_vol(struct mpii_softc *, struct bioc_vol *);
int		mpii_ioctl_disk(struct mpii_softc *, struct bioc_disk *);
int		mpii_bio_hs(struct mpii_softc *, struct bioc_disk *, int,
		    u_int8_t, int *);
int		mpii_bio_disk(struct mpii_softc *, struct bioc_disk *,
		    u_int8_t);
int		mpii_bio_getphy(struct mpii_softc *, u_int16_t, u_int16_t *);
#ifndef SMALL_KERNEL
 int		mpii_bio_volstate(struct mpii_softc *, struct bioc_vol *);
int		mpii_create_sensors(struct mpii_softc *);
void		mpii_refresh_sensors(void *);
#endif /* SMALL_KERNEL */
#endif /* NBIO > 0 */

#define DEVNAME(s)		((s)->sc_dev.dv_xname)

#define dwordsof(s)		(sizeof(s) / sizeof(u_int32_t))
#define dwordn(p, n)		(((u_int32_t *)(p))[(n)])

#define mpii_read_db(s)		mpii_read((s), MPII_DOORBELL)
#define mpii_write_db(s, v)	mpii_write((s), MPII_DOORBELL, (v))
#define mpii_read_intr(s)	mpii_read((s), MPII_INTR_STATUS)
#define mpii_write_intr(s, v)	mpii_write((s), MPII_INTR_STATUS, (v))
#define mpii_reply_waiting(s)	((mpii_read_intr((s)) & MPII_INTR_STATUS_REPLY)\
				    == MPII_INTR_STATUS_REPLY)

#define mpii_read_reply_free(s)		mpii_read((s), \
						MPII_REPLY_FREE_HOST_INDEX)
#define mpii_write_reply_free(s, v)	mpii_write((s), \
						MPII_REPLY_FREE_HOST_INDEX, (v))
#define mpii_read_reply_post(s)		mpii_read((s), \
						MPII_REPLY_POST_HOST_INDEX)
#define mpii_write_reply_post(s, v)	mpii_write((s), \
						MPII_REPLY_POST_HOST_INDEX, (v))

#define mpii_wait_db_int(s)	mpii_wait_ne((s), MPII_INTR_STATUS, \
				    MPII_INTR_STATUS_IOC2SYSDB, 0)
#define mpii_wait_db_ack(s)	mpii_wait_eq((s), MPII_INTR_STATUS, \
				    MPII_INTR_STATUS_SYS2IOCDB, 0)

#define MPII_PG_EXTENDED	(1<<0)
#define MPII_PG_POLL		(1<<1)
#define MPII_PG_FMT		"\020" "\002POLL" "\001EXTENDED"

#define mpii_cfg_header(_s, _t, _n, _a, _h) \
	mpii_req_cfg_header((_s), (_t), (_n), (_a), \
	    MPII_PG_POLL, (_h))
#define mpii_ecfg_header(_s, _t, _n, _a, _h) \
	mpii_req_cfg_header((_s), (_t), (_n), (_a), \
	    MPII_PG_POLL|MPII_PG_EXTENDED, (_h))

#define mpii_cfg_page(_s, _a, _h, _r, _p, _l) \
	mpii_req_cfg_page((_s), (_a), MPII_PG_POLL, \
	    (_h), (_r), (_p), (_l))
#define mpii_ecfg_page(_s, _a, _h, _r, _p, _l) \
	mpii_req_cfg_page((_s), (_a), MPII_PG_POLL|MPII_PG_EXTENDED, \
	    (_h), (_r), (_p), (_l))

int
mpii_attach(struct mpii_softc *sc)
{
	struct scsibus_attach_args	saa;
	struct mpii_ccb			*ccb;

	printf("\n");

	/* disable interrupts */
	mpii_write(sc, MPII_INTR_MASK, 
	    MPII_INTR_MASK_RESET | MPII_INTR_MASK_REPLY
	    | MPII_INTR_MASK_DOORBELL);

	if (mpii_init(sc) != 0) {
		printf("%s: unable to initialize ioc\n", DEVNAME(sc));
		return (1);
	}

	if (mpii_iocfacts(sc) != 0) {
		printf("%s: unable to get iocfacts\n", DEVNAME(sc));
		return (1);
	}

	if (mpii_alloc_ccbs(sc) != 0) {
		/* error already printed */
		return(1);
	}
	
	if (mpii_alloc_replies(sc) != 0) {
		printf("%s: unable to allocated reply space\n", DEVNAME(sc));
		goto free_ccbs;
	}

	if (mpii_alloc_queues(sc) != 0) {
		printf("%s: unable to allocate reply queues\n", DEVNAME(sc));
		goto free_replies;
	}

	if (mpii_iocinit(sc) != 0) {
		printf("%s: unable to send iocinit\n", DEVNAME(sc));
		goto free_queues;
	}

	if (mpii_wait_eq(sc, MPII_DOORBELL, MPII_DOORBELL_STATE,
	    MPII_DOORBELL_STATE_OPER) != 0) {
		printf("%s: state: 0x%08x\n", DEVNAME(sc),
			mpii_read_db(sc) & MPII_DOORBELL_STATE);
		printf("%s: operational state timeout\n", DEVNAME(sc));
		goto free_queues;
	}

	mpii_push_replies(sc);
	mpii_init_queues(sc);

	if (mpii_portfacts(sc) != 0) {
		printf("%s: unable to get portfacts\n", DEVNAME(sc));
		goto free_queues;
	}	

	if (mpii_get_ioc_pg8(sc) != 0) {
		printf("%s: unable to get ioc page 8\n", DEVNAME(sc));
		goto free_queues;
	}

#if 0
	if (mpii_get_dpm(sc) != 0) {
		printf("%s: unable to get driver persistent mapping\n",
		    DEVNAME(sc));
		goto free_queues;
	}
#endif

	if (mpii_cfg_coalescing(sc) != 0) {
		printf("%s: unable to configure coalescing\n", DEVNAME(sc));
		goto free_dpm;
	}

	/* XXX bail on unsupported porttype? */
	if ((sc->sc_porttype == MPII_PORTFACTS_PORTTYPE_SAS_PHYSICAL) || 
		(sc->sc_porttype == MPII_PORTFACTS_PORTTYPE_SAS_VIRTUAL)) {
		if (mpii_eventnotify(sc) != 0) {
			printf("%s: unable to enable events\n", DEVNAME(sc));
			goto free_dpm;
		}
	}

	if (mpii_alloc_dev(sc) != 0) {
		printf("%s: unable to allocate memory for mpii_dev\n", 
		    DEVNAME(sc));
		goto free_dpm;
	}

	if (mpii_portenable(sc) != 0) {
		printf("%s: unable to enable port\n", DEVNAME(sc));
		goto free_dev;
	} /* assume all discovery events are complete by now */


	if (mpii_get_bios_pg2(sc) != 0) {
		printf("%s: unable to get bios page 2\n", DEVNAME(sc));
		goto free_dev;	
	}

	rw_init(&sc->sc_lock, "mpii_lock");

	/* we should be good to go now, attach scsibus */
	sc->sc_link.device = &mpii_dev;
	sc->sc_link.adapter = &mpii_switch;
	sc->sc_link.adapter_softc = sc;
	sc->sc_link.adapter_target = sc->sc_target;
	sc->sc_link.adapter_buswidth = sc->sc_max_devices;
	sc->sc_link.openings = sc->sc_request_depth;

	bzero(&saa, sizeof(saa));
	saa.saa_sc_link = &sc->sc_link;

	/* config_found() returns the scsibus attached to us */
	sc->sc_scsibus = (struct scsibus_softc *) config_found(&sc->sc_dev,
		&saa, scsiprint);

	/* enable interrupts */
	mpii_write(sc, MPII_INTR_MASK, MPII_INTR_MASK_DOORBELL 
	    | MPII_INTR_MASK_RESET);

#if NBIO > 0
	if (bio_register(&sc->sc_dev, mpii_ioctl) != 0)
		panic("%s: controller registration failed", DEVNAME(sc));
	else
		sc->sc_ioctl = mpii_ioctl;

#ifndef SMALL_KERNEL
	if (mpii_create_sensors(sc) != 0)
		printf("%s: unable to create sensors\n", DEVNAME(sc));
#endif
#endif

	return (0);

	if (sc->sc_bios_pg2)
		free(sc->sc_bios_pg2, M_TEMP);

free_dev:
	if (sc->sc_mpii_dev)
		free(sc->sc_mpii_dev, M_DEVBUF);

free_dpm:
	if (sc->sc_dpm_pg0)
		free(sc->sc_dpm_pg0, M_DEVBUF);

free_queues:
	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_reply_freeq),
     	    0, sc->sc_reply_free_qdepth * 4, BUS_DMASYNC_POSTREAD);
	mpii_dmamem_free(sc, sc->sc_reply_freeq);

	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_reply_postq),
	    0, sc->sc_reply_post_qdepth * 8, BUS_DMASYNC_POSTREAD);
	mpii_dmamem_free(sc, sc->sc_reply_postq);

free_replies:
	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_replies),
		0, PAGE_SIZE, BUS_DMASYNC_POSTREAD);
	mpii_dmamem_free(sc, sc->sc_replies);

free_ccbs:
	while ((ccb = mpii_get_ccb(sc)) != NULL)
		bus_dmamap_destroy(sc->sc_dmat, ccb->ccb_dmamap);
	mpii_dmamem_free(sc, sc->sc_requests);
	free(sc->sc_ccbs, M_DEVBUF);

	return(1);
}

void
mpii_detach(struct mpii_softc *sc)
{

}

int
mpii_intr(void *arg)
{
	struct mpii_softc		*sc = arg;
	struct mpii_reply_descriptor	*rdp;
	u_int8_t			reply_flags;
	int				rv = 0;

	do {
		bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_reply_postq),
		    0, 8 * sc->sc_reply_post_qdepth, BUS_DMASYNC_POSTWRITE);

		rdp = &sc->sc_reply_postq_kva[sc->sc_reply_post_host_index];
		reply_flags = (u_int8_t)(rdp->reply_flags) & 
		    MPII_REPLY_DESCR_FLAGS_TYPE_MASK;
		if ((reply_flags == MPII_REPLY_DESCR_FLAGS_UNUSED))
			break;
		if (rdp->type_dependent2 == 0xffffffff) {
			/*
			 * ioc is still writing to the reply post queue
			 * race condition - bail!
			 */
			printf("%s: ioc is writing a reply\n", DEVNAME(sc));
			break;
		}
		mpii_reply(sc, rdp);
		sc->sc_reply_post_host_index =
		    (sc->sc_reply_post_host_index + 1) %
		    sc->sc_reply_post_qdepth;
		rv |= 1;
	} while (1);

	if (rv)
		mpii_write_reply_post(sc, sc->sc_reply_post_host_index);

	return (rv);
}

void
mpii_timeout_xs(void *arg)
{
	struct mpii_ccb		*ccb = arg;
	struct mpii_softc	*sc = ccb->ccb_sc;

	printf("%s: xfer timeout, ccb %d state %d\n", DEVNAME(sc),
	    ccb->ccb_smid, ccb->ccb_state);
}

int
mpii_load_xs(struct mpii_ccb *ccb)
{
	struct mpii_softc	*sc = ccb->ccb_sc;
	struct scsi_xfer	*xs = ccb->ccb_xs;
	struct mpii_ccb_bundle	*mcb = ccb->ccb_cmd;
	struct mpii_msg_scsi_io	*io = &mcb->mcb_io;
	struct mpii_sge		*sge, *nsge = &mcb->mcb_sgl[0];
	struct mpii_sge		*ce = NULL, *nce;
	u_int64_t		ce_dva;
	bus_dmamap_t		dmap = ccb->ccb_dmamap;
	u_int32_t		addr, flags;
	int			i, error;

	/* zero length transfer still requires an SGE */
	if (xs->datalen == 0) {
		nsge->sg_hdr = htole32(MPII_SGE_FL_TYPE_SIMPLE |
		    MPII_SGE_FL_LAST | MPII_SGE_FL_EOB | MPII_SGE_FL_EOL);
		return (0);
	}

	error = bus_dmamap_load(sc->sc_dmat, dmap,
	    xs->data, xs->datalen, NULL,
	    (xs->flags & SCSI_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK);
	if (error) {
		printf("%s: error %d loading dmamap\n", DEVNAME(sc), error);
		return (1);
	}

	/* safe default staring flags */
	flags = MPII_SGE_FL_TYPE_SIMPLE | MPII_SGE_FL_SIZE_64;
	/* if data out */
	if (xs->flags & SCSI_DATA_OUT)
		flags |= MPII_SGE_FL_DIR_OUT;

	/* we will have to exceed the SGEs we can cram into the request frame */
	if (dmap->dm_nsegs > sc->sc_first_sgl_len) {
		ce = &mcb->mcb_sgl[sc->sc_first_sgl_len - 1];
		io->chain_offset = ((u_int8_t *)ce - (u_int8_t *)io) / 4;
	}

	for (i = 0; i < dmap->dm_nsegs; i++) {

		if (nsge == ce) {
			nsge++;
			sge->sg_hdr |= htole32(MPII_SGE_FL_LAST);

			DNPRINTF(MPII_D_DMA, "%s:   - 0x%08x 0x%08x 0x%08x\n",
			    DEVNAME(sc), sge->sg_hdr,
			    sge->sg_hi_addr, sge->sg_lo_addr);

			if ((dmap->dm_nsegs - i) > sc->sc_chain_len) {
				nce = &nsge[sc->sc_chain_len - 1];
				addr = ((u_int8_t *)nce - (u_int8_t *)nsge) / 4;
				addr = addr << 16 |
				    sizeof(struct mpii_sge) * sc->sc_chain_len;
			} else {
				nce = NULL;
				addr = sizeof(struct mpii_sge) *
				    (dmap->dm_nsegs - i);
			}

			ce->sg_hdr = htole32(MPII_SGE_FL_TYPE_CHAIN |
			    MPII_SGE_FL_SIZE_64 | addr);

			ce_dva = ccb->ccb_cmd_dva +
			    ((u_int8_t *)nsge - (u_int8_t *)mcb);

			addr = (u_int32_t)(ce_dva >> 32);
			ce->sg_hi_addr = htole32(addr);
			addr = (u_int32_t)ce_dva;
			ce->sg_lo_addr = htole32(addr);

			DNPRINTF(MPII_D_DMA, "%s:  ce: 0x%08x 0x%08x 0x%08x\n",
			    DEVNAME(sc), ce->sg_hdr, ce->sg_hi_addr,
			    ce->sg_lo_addr);

			ce = nce;
		}

		DNPRINTF(MPII_D_DMA, "%s:  %d: %d 0x%016llx\n", DEVNAME(sc),
		    i, dmap->dm_segs[i].ds_len,
		    (u_int64_t)dmap->dm_segs[i].ds_addr);

		sge = nsge;

		sge->sg_hdr = htole32(flags | dmap->dm_segs[i].ds_len);
		addr = (u_int32_t)((u_int64_t)dmap->dm_segs[i].ds_addr >> 32);
		sge->sg_hi_addr = htole32(addr);
		addr = (u_int32_t)dmap->dm_segs[i].ds_addr;
		sge->sg_lo_addr = htole32(addr);

		DNPRINTF(MPII_D_DMA, "%s:  %d: 0x%08x 0x%08x 0x%08x\n",
		    DEVNAME(sc), i, sge->sg_hdr, sge->sg_hi_addr,
		    sge->sg_lo_addr);

		nsge = sge + 1;
	}

	/* terminate list */
	sge->sg_hdr |= htole32(MPII_SGE_FL_LAST | MPII_SGE_FL_EOB |
	    MPII_SGE_FL_EOL);

	bus_dmamap_sync(sc->sc_dmat, dmap, 0, dmap->dm_mapsize,
	    (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_PREREAD :
	    BUS_DMASYNC_PREWRITE);

	return (0);
}

void
mpii_minphys(struct buf *bp, struct scsi_link *sl)
{
	minphys(bp);
}

int
mpii_scsi_probe(struct scsi_link *link)
{
	struct mpii_softc	*sc = link->adapter_softc;
	struct mpii_device	*device;
	u_int8_t		flags;

	if ((sc->sc_porttype != MPII_PORTFACTS_PORTTYPE_SAS_PHYSICAL) && 
		(sc->sc_porttype != MPII_PORTFACTS_PORTTYPE_SAS_VIRTUAL)) 
		return (1);

	if (sc->sc_mpii_dev[link->target] == NULL)
		return (1);
		
	device = (struct mpii_device *)sc->sc_mpii_dev[link->target];
	flags = device->flags;	
	if ((flags & MPII_DEV_UNUSED) || (flags & MPII_DEV_HIDDEN))
		return (1);

	sc->sc_mpii_dev[link->target]->flags |= MPII_DEV_SCSI_ML_ATTACH;

	return (0);
}

u_int32_t
mpii_read(struct mpii_softc *sc, bus_size_t r)
{
	u_int32_t			rv;

	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
	    BUS_SPACE_BARRIER_READ);
	rv = bus_space_read_4(sc->sc_iot, sc->sc_ioh, r);

	DNPRINTF(MPII_D_RW, "%s: mpii_read %#x %#x\n", DEVNAME(sc), r, rv);

	return (rv);
}

void
mpii_write(struct mpii_softc *sc, bus_size_t r, u_int32_t v)
{
	DNPRINTF(MPII_D_RW, "%s: mpii_write %#x %#x\n", DEVNAME(sc), r, v);

	bus_space_write_4(sc->sc_iot, sc->sc_ioh, r, v);
	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
	    BUS_SPACE_BARRIER_WRITE);
}


int
mpii_wait_eq(struct mpii_softc *sc, bus_size_t r, u_int32_t mask,
    u_int32_t target)
{
	int			i;

	DNPRINTF(MPII_D_RW, "%s: mpii_wait_eq %#x %#x %#x\n", DEVNAME(sc), r,
	    mask, target);

	for (i = 0; i < 15000; i++) {
		if ((mpii_read(sc, r) & mask) == target)
			return (0);
		delay(1000);
	}

	return (1);
}

int
mpii_wait_ne(struct mpii_softc *sc, bus_size_t r, u_int32_t mask,
    u_int32_t target)
{
	int			i;

	DNPRINTF(MPII_D_RW, "%s: mpii_wait_ne %#x %#x %#x\n", DEVNAME(sc), r,
	    mask, target);

	for (i = 0; i < 15000; i++) {
		if ((mpii_read(sc, r) & mask) != target)
			return (0);
		delay(1000);
	}

	return (1);
}


int
mpii_init(struct mpii_softc *sc)
{
	u_int32_t		db;
	int			i;

	/* spin until the ioc leaves the reset state */
	if (mpii_wait_ne(sc, MPII_DOORBELL, MPII_DOORBELL_STATE,
	    MPII_DOORBELL_STATE_RESET) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_init timeout waiting to leave "
		    "reset state\n", DEVNAME(sc));
		return (1);
	}

	/* check current ownership */
	db = mpii_read_db(sc);
	if ((db & MPII_DOORBELL_WHOINIT) == MPII_DOORBELL_WHOINIT_PCIPEER) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_init initialised by pci peer\n",
		    DEVNAME(sc));
		return (0);
	}

	for (i = 0; i < 5; i++) {
		switch (db & MPII_DOORBELL_STATE) {
		case MPII_DOORBELL_STATE_READY:
			DNPRINTF(MPII_D_MISC, "%s: mpii_init ioc is ready\n",
			    DEVNAME(sc));
			return (0);

		case MPII_DOORBELL_STATE_OPER:
			DNPRINTF(MPII_D_MISC, "%s: mpii_init ioc is oper\n",
			    DEVNAME(sc));
			if (sc->sc_ioc_event_replay)
				mpii_reset_soft(sc);
			else
				mpii_reset_hard(sc);
			break;

		case MPII_DOORBELL_STATE_FAULT:
			DNPRINTF(MPII_D_MISC, "%s: mpii_init ioc is being "
			    "reset hard\n" , DEVNAME(sc));
			mpii_reset_hard(sc);
			break;

		case MPII_DOORBELL_STATE_RESET:
			DNPRINTF(MPII_D_MISC, "%s: mpii_init waiting to come "
			    "out of reset\n", DEVNAME(sc));
			if (mpii_wait_ne(sc, MPII_DOORBELL, MPII_DOORBELL_STATE,
			    MPII_DOORBELL_STATE_RESET) != 0)
				return (1);
			break;
		}
		db = mpii_read_db(sc);
	}

	return (1);
}

int
mpii_reset_soft(struct mpii_softc *sc)
{
	DNPRINTF(MPII_D_MISC, "%s: mpii_reset_soft\n", DEVNAME(sc));

	if (mpii_read_db(sc) & MPII_DOORBELL_INUSE) {
		return (1);
	}

	mpii_write_db(sc,
	    MPII_DOORBELL_FUNCTION(MPII_FUNCTION_IOC_MESSAGE_UNIT_RESET));
	
	/* XXX LSI waits 15 sec */
	if (mpii_wait_db_ack(sc) != 0)
		return (1);

	/* XXX LSI waits 15 sec */
	if (mpii_wait_eq(sc, MPII_DOORBELL, MPII_DOORBELL_STATE,
	    MPII_DOORBELL_STATE_READY) != 0)
		return (1);

	/* XXX wait for Sys2IOCDB bit to clear in HIS?? */

	return (0);
}

int
mpii_reset_hard(struct mpii_softc *sc)
{
	u_int16_t		i;

	DNPRINTF(MPII_D_MISC, "%s: mpii_reset_hard\n", DEVNAME(sc));

	mpii_write_intr(sc, 0);

	/* enable diagnostic register */
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_FLUSH);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_1);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_2);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_3);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_4);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_5);
	mpii_write(sc, MPII_WRITESEQ, MPII_WRITESEQ_6);

	delay(100);

	if ((mpii_read(sc, MPII_HOSTDIAG) & MPII_HOSTDIAG_DWRE) == 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_reset_hard failure to enable "
		    "diagnostic read/write\n", DEVNAME(sc));
		return(1);
	}

	/* reset ioc */
	mpii_write(sc, MPII_HOSTDIAG, MPII_HOSTDIAG_RESET_ADAPTER);

	/* 200 milliseconds */
	delay(200000);


	/* XXX this whole function should be more robust */
	
	/* XXX  read the host diagnostic reg until reset adapter bit clears ? */
	for (i = 0; i < 30000; i++) {
		if ((mpii_read(sc, MPII_HOSTDIAG) & 
		    MPII_HOSTDIAG_RESET_ADAPTER) == 0)
			break;
		delay(10000);
	}

	/* disable diagnostic register */
	mpii_write(sc, MPII_WRITESEQ, 0xff);

	/* XXX what else? */

	DNPRINTF(MPII_D_MISC, "%s: done with mpii_reset_hard\n", DEVNAME(sc));

	return(0);
}

int
mpii_handshake_send(struct mpii_softc *sc, void *buf, size_t dwords)
{
	u_int32_t		*query = buf;
	int			i;

	/* make sure the doorbell is not in use. */
	if (mpii_read_db(sc) & MPII_DOORBELL_INUSE)
		return (1);

	/* clear pending doorbell interrupts */
	if (mpii_read_intr(sc) & MPII_INTR_STATUS_IOC2SYSDB)
		mpii_write_intr(sc, 0);

	/*
	 * first write the doorbell with the handshake function and the
	 * dword count.
	 */
	mpii_write_db(sc, MPII_DOORBELL_FUNCTION(MPII_FUNCTION_HANDSHAKE) |
	    MPII_DOORBELL_DWORDS(dwords));

	/*
	 * the doorbell used bit will be set because a doorbell function has
	 * started. wait for the interrupt and then ack it.
	 */
	if (mpii_wait_db_int(sc) != 0)
		return (1);
	mpii_write_intr(sc, 0);

	/* poll for the acknowledgement. */
	if (mpii_wait_db_ack(sc) != 0)
		return (1);

	/* write the query through the doorbell. */
	for (i = 0; i < dwords; i++) {
		mpii_write_db(sc, htole32(query[i]));
		if (mpii_wait_db_ack(sc) != 0)
			return (1);
	}

	return (0);
}

int
mpii_handshake_recv_dword(struct mpii_softc *sc, u_int32_t *dword)
{
	u_int16_t		*words = (u_int16_t *)dword;
	int			i;

	for (i = 0; i < 2; i++) {
		if (mpii_wait_db_int(sc) != 0)
			return (1);
		words[i] = letoh16(mpii_read_db(sc) & MPII_DOORBELL_DATA_MASK);
		mpii_write_intr(sc, 0);
	}

	return (0);
}

int
mpii_handshake_recv(struct mpii_softc *sc, void *buf, size_t dwords)
{
	struct mpii_msg_reply	*reply = buf;
	u_int32_t		*dbuf = buf, dummy;
	int			i;

	/* get the first dword so we can read the length out of the header. */
	if (mpii_handshake_recv_dword(sc, &dbuf[0]) != 0)
		return (1);

	DNPRINTF(MPII_D_CMD, "%s: mpii_handshake_recv dwords: %d reply: %d\n",
	    DEVNAME(sc), dwords, reply->msg_length);

	/*
	 * the total length, in dwords, is in the message length field of the
	 * reply header.
	 */
	for (i = 1; i < MIN(dwords, reply->msg_length); i++) {
		if (mpii_handshake_recv_dword(sc, &dbuf[i]) != 0)
			return (1);
	}

	/* if there's extra stuff to come off the ioc, discard it */
	while (i++ < reply->msg_length) {
		if (mpii_handshake_recv_dword(sc, &dummy) != 0)
			return (1);
		DNPRINTF(MPII_D_CMD, "%s: mpii_handshake_recv dummy read: "
		    "0x%08x\n", DEVNAME(sc), dummy);
	}

	/* wait for the doorbell used bit to be reset and clear the intr */
	if (mpii_wait_db_int(sc) != 0)
		return (1);
	
	if (mpii_wait_eq(sc, MPII_DOORBELL, MPII_DOORBELL_INUSE, 0) != 0)
		return (1);
	 
	mpii_write_intr(sc, 0);

	return (0);
}

void
mpii_empty_done(struct mpii_ccb *ccb)
{
	/* nothing to do */
}

int
mpii_iocfacts(struct mpii_softc *sc)
{
	struct mpii_msg_iocfacts_request	ifq;
	struct mpii_msg_iocfacts_reply		ifp;

	DNPRINTF(MPII_D_MISC, "%s: mpii_iocfacts\n", DEVNAME(sc));

	bzero(&ifq, sizeof(ifq));
	bzero(&ifp, sizeof(ifp));

	ifq.function = MPII_FUNCTION_IOC_FACTS;

	if (mpii_handshake_send(sc, &ifq, dwordsof(ifq)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_iocfacts send failed\n",
		    DEVNAME(sc));
		return (1);
	}

	if (mpii_handshake_recv(sc, &ifp, dwordsof(ifp)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_iocfacts recv failed\n",
		    DEVNAME(sc));
		return (1);
	}

	DNPRINTF(MPII_D_MISC, "%s:  func: 0x%02x length: %d msgver: %d.%d\n",
	    DEVNAME(sc), ifp.function, ifp.msg_length,
	    ifp.msg_version_maj, ifp.msg_version_min);
	DNPRINTF(MPII_D_MISC, "%s:  msgflags: 0x%02x iocnumber: 0x%02x "
	    "headerver: %d.%d\n", DEVNAME(sc), ifp.msg_flags,
	    ifp.ioc_number, ifp.header_version_unit,
	    ifp.header_version_dev);
	DNPRINTF(MPII_D_MISC, "%s:  vp_id: 0x%02x vf_id: 0x%02x\n", DEVNAME(sc),
	    ifp.vp_id, ifp.vf_id);
	DNPRINTF(MPII_D_MISC, "%s:  iocstatus: 0x%04x ioexceptions: 0x%04x\n",
	    DEVNAME(sc), letoh16(ifp.ioc_status),
	    letoh16(ifp.ioc_exceptions));
	DNPRINTF(MPII_D_MISC, "%s:  iocloginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(ifp.ioc_loginfo));
	DNPRINTF(MPII_D_MISC, "%s:  numberofports: 0x%02x whoinit: 0x%02x "
	    "maxchaindepth: %d\n", DEVNAME(sc), ifp.number_of_ports,
	    ifp.whoinit, ifp.max_chain_depth);
	DNPRINTF(MPII_D_MISC, "%s:  productid: 0x%04x requestcredit: 0x%04x\n", 
	    DEVNAME(sc), letoh16(ifp.product_id), letoh16(ifp.request_credit));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_capabilities: 0x%08x\n", DEVNAME(sc),
	    letoh32(ifp.ioc_capabilities));
	DNPRINTF(MPII_D_MISC, "%s:  fw_version: %d.%d fw_version_unit: 0x%02x "
	    "fw_version_dev: 0x%02x\n", DEVNAME(sc),
	    ifp.fw_version_maj, ifp.fw_version_min,
	    ifp.fw_version_unit, ifp.fw_version_dev);
	DNPRINTF(MPII_D_MISC, "%s:  iocrequestframesize: 0x%04x\n",
	    DEVNAME(sc), letoh16(ifp.ioc_request_frame_size));
	DNPRINTF(MPII_D_MISC, "%s:  maxtargets: 0x%04x " 
	    "maxinitiators: 0x%04x\n", DEVNAME(sc),
	    letoh16(ifp.max_targets), letoh16(ifp.max_initiators));
	DNPRINTF(MPII_D_MISC, "%s:  maxenclosures: 0x%04x "
	    "maxsasexpanders: 0x%04x\n", DEVNAME(sc),
	    letoh16(ifp.max_enclosures), letoh16(ifp.max_sas_expanders));
	DNPRINTF(MPII_D_MISC, "%s:  highprioritycredit: 0x%04x "
	    "protocolflags: 0x%02x\n", DEVNAME(sc),
	    letoh16(ifp.high_priority_credit), letoh16(ifp.protocol_flags));
	DNPRINTF(MPII_D_MISC, "%s:  maxvolumes: 0x%02x replyframesize: 0x%02x "
	    "mrdpqd: 0x%04x\n", DEVNAME(sc), ifp.max_volumes,
	    ifp.reply_frame_size,
	    letoh16(ifp.max_reply_descriptor_post_queue_depth));
	DNPRINTF(MPII_D_MISC, "%s:  maxpersistententries: 0x%04x "
	    "maxdevhandle: 0x%02x\n", DEVNAME(sc),
	    letoh16(ifp.max_persistent_entries), letoh16(ifp.max_dev_handle));

	sc->sc_maxchdepth = ifp.max_chain_depth;
	sc->sc_ioc_number = ifp.ioc_number;
	sc->sc_vf_id = ifp.vf_id;
	
	sc->sc_num_ports = ifp.number_of_ports;
	sc->sc_ir_firmware = (letoh32(ifp.ioc_capabilities) & 
	    MPII_IOCFACTS_CAPABILITY_INTEGRATED_RAID) ? 1 : 0;    
	sc->sc_ioc_event_replay = (letoh32(ifp.ioc_capabilities) &
	    MPII_IOCFACTS_CAPABILITY_EVENT_REPLAY) ? 1 : 0;
	sc->sc_max_enclosures = letoh16(ifp.max_enclosures);
	sc->sc_max_expanders = letoh16(ifp.max_sas_expanders);
	sc->sc_max_volumes = ifp.max_volumes;
	sc->sc_max_devices = ifp.max_volumes + letoh16(ifp.max_targets);
	sc->sc_num_channels = 1;
	
	sc->sc_request_depth = MIN(letoh16(ifp.request_credit),
	    MPII_MAX_REQUEST_CREDIT);

	/* should not be multiple of 16 */ 
	sc->sc_num_reply_frames = sc->sc_request_depth + 32;
	if (!(sc->sc_num_reply_frames % 16))
		sc->sc_num_reply_frames--;

	/* must be multiple of 16 */
	sc->sc_reply_free_qdepth = sc->sc_num_reply_frames + 
	    (16 - (sc->sc_num_reply_frames % 16));

	sc->sc_reply_post_qdepth = sc->sc_request_depth +
	    sc->sc_num_reply_frames + 1;

	if (sc->sc_reply_post_qdepth > 
	    ifp.max_reply_descriptor_post_queue_depth)
		sc->sc_reply_post_qdepth = 
		    ifp.max_reply_descriptor_post_queue_depth;

	DNPRINTF(MPII_D_MISC, "%s: sc_request_depth: %d "
	    "sc_num_reply_frames: %d sc_reply_free_qdepth: %d "
	    "sc_reply_post_qdepth: %d\n", DEVNAME(sc), sc->sc_request_depth,
	    sc->sc_num_reply_frames, sc->sc_reply_free_qdepth,
	    sc->sc_reply_post_qdepth);

	/*
	 * you can fit sg elements on the end of the io cmd if they fit in the
	 * request frame size.
	 */

	sc->sc_first_sgl_len = ((letoh16(ifp.ioc_request_frame_size) * 4) -
	    sizeof(struct mpii_msg_scsi_io)) / sizeof(struct mpii_sge);
	DNPRINTF(MPII_D_MISC, "%s:   first sgl len: %d\n", DEVNAME(sc),
	    sc->sc_first_sgl_len);

	sc->sc_chain_len = (letoh16(ifp.ioc_request_frame_size) * 4) /
	    sizeof(struct mpii_sge);
	DNPRINTF(MPII_D_MISC, "%s:   chain len: %d\n", DEVNAME(sc),
	    sc->sc_chain_len);

	/* the sgl tailing the io cmd loses an entry to the chain element. */
	sc->sc_max_sgl_len = MPII_MAX_SGL - 1;
	/* the sgl chains lose an entry for each chain element */
	sc->sc_max_sgl_len -= (MPII_MAX_SGL - sc->sc_first_sgl_len) /
	    sc->sc_chain_len;
	DNPRINTF(MPII_D_MISC, "%s:   max sgl len: %d\n", DEVNAME(sc),
	    sc->sc_max_sgl_len);

	/* XXX we're ignoring the max chain depth */

	return(0);

}

int
mpii_iocinit(struct mpii_softc *sc)
{
	struct mpii_msg_iocinit_request		iiq;
	struct mpii_msg_iocinit_reply		iip;
	u_int32_t				hi_addr;

	DNPRINTF(MPII_D_MISC, "%s: mpii_iocinit\n", DEVNAME(sc));

	bzero(&iiq, sizeof(iiq));
	bzero(&iip, sizeof(iip));

	iiq.function = MPII_FUNCTION_IOC_INIT;
	iiq.whoinit = MPII_WHOINIT_HOST_DRIVER;
	
	/* XXX JPG do something about vf_id */
	iiq.vf_id = 0;

	iiq.msg_version_maj = 0x02;
	iiq.msg_version_min = 0x00;

	/* XXX JPG ensure compliance with some level and hard-code? */
	iiq.hdr_version_unit = 0x00;
	iiq.hdr_version_dev = 0x00;

	iiq.system_request_frame_size = htole16(MPII_REQUEST_SIZE / 4);

	iiq.reply_descriptor_post_queue_depth = 
	    htole16(sc->sc_reply_post_qdepth);

	iiq.reply_free_queue_depth = htole16(sc->sc_reply_free_qdepth);
	
	hi_addr = (u_int32_t)((u_int64_t)MPII_DMA_DVA(sc->sc_requests) >> 32);
	iiq.sense_buffer_address_high = htole32(hi_addr);

	hi_addr = (u_int32_t)
	    ((u_int64_t)MPII_DMA_DVA(sc->sc_replies) >> 32);
	iiq.system_reply_address_high = htole32(hi_addr);

	iiq.system_request_frame_base_address = 
	    (u_int64_t)MPII_DMA_DVA(sc->sc_requests);

	iiq.reply_descriptor_post_queue_address =
	    (u_int64_t)MPII_DMA_DVA(sc->sc_reply_postq);

	iiq.reply_free_queue_address =
	    (u_int64_t)MPII_DMA_DVA(sc->sc_reply_freeq);

	if (mpii_handshake_send(sc, &iiq, dwordsof(iiq)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_iocinit send failed\n",
		    DEVNAME(sc));
		return (1);
	}

	if (mpii_handshake_recv(sc, &iip, dwordsof(iip)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_iocinit recv failed\n",
		    DEVNAME(sc));
		return (1);
	}

	DNPRINTF(MPII_D_MISC, "%s:  function: 0x%02x msg_length: %d "
	    "whoinit: 0x%02x\n", DEVNAME(sc), iip.function,
	    iip.msg_length, iip.whoinit);
	DNPRINTF(MPII_D_MISC, "%s:  msg_flags: 0x%02x\n", DEVNAME(sc), 
	    iip.msg_flags);
	DNPRINTF(MPII_D_MISC, "%s:  vf_id: 0x%02x vp_id: 0x%02x\n", DEVNAME(sc),
	    iip.vf_id, iip.vp_id);
	DNPRINTF(MPII_D_MISC, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(iip.ioc_status));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(iip.ioc_loginfo));

	if ((iip.ioc_status != MPII_IOCSTATUS_SUCCESS) || (iip.ioc_loginfo))
		return (1);

	return (0);
}

void
mpii_push_reply(struct mpii_softc *sc, u_int32_t rdva)
{
	u_int32_t		*rfp;

	rfp = MPII_DMA_KVA(sc->sc_reply_freeq);
	rfp[sc->sc_reply_free_host_index] = rdva;

	sc->sc_reply_free_host_index = (sc->sc_reply_free_host_index + 1) %
	    sc->sc_reply_free_qdepth;

	mpii_write_reply_free(sc, sc->sc_reply_free_host_index);
}

int
mpii_portfacts(struct mpii_softc *sc)
{
	struct mpii_msg_portfacts_request	*pfq;
	struct mpii_msg_portfacts_reply		*pfp;
	int			rv = 1, s;
	struct mpii_ccb		*ccb;

	DNPRINTF(MPII_D_MISC, "%s: mpii_portfacts\n", DEVNAME(sc));

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_portfacts mpii_get_ccb fail\n",
		    DEVNAME(sc));
		return (rv);
	}

	ccb->ccb_done = mpii_empty_done;
	pfq = ccb->ccb_cmd;
	
	bzero(pfq, sizeof(struct mpii_msg_portfacts_request));

	pfq->function = MPII_FUNCTION_PORT_FACTS;
	pfq->chain_offset = 0;
	pfq->msg_flags = 0;
	pfq->port_number = 0;
	pfq->vp_id = 0;
	pfq->vf_id = 0;

	if (mpii_poll(sc, ccb, 50000) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_portfacts poll\n", DEVNAME(sc));
		goto err;
	}

	if (ccb->ccb_rcb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: empty portfacts reply\n",
		    DEVNAME(sc));
		goto err;
	}
	
	pfp = ccb->ccb_rcb->rcb_reply;
	DNPRINTF(MPII_D_MISC, "%s   pfp: 0x%04x\n", DEVNAME(sc), pfp);

	DNPRINTF(MPII_D_MISC, "%s:  function: 0x%02x msg_length: %d\n",
	    DEVNAME(sc), pfp->function, pfp->msg_length);
	DNPRINTF(MPII_D_MISC, "%s:  msg_flags: 0x%02x port_number: %d\n",
	    DEVNAME(sc), pfp->msg_flags, pfp->port_number);
	DNPRINTF(MPII_D_MISC, "%s:  vf_id: 0x%02x vp_id: 0x%02x\n", DEVNAME(sc),
	    pfp->vf_id, pfp->vp_id);
	DNPRINTF(MPII_D_MISC, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(pfp->ioc_status));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(pfp->ioc_loginfo));
	DNPRINTF(MPII_D_MISC, "%s:  port_type: 0x%02x\n", DEVNAME(sc), 
	    pfp->port_type);
	DNPRINTF(MPII_D_MISC, "%s:  max_posted_cmd_buffers: %d\n", DEVNAME(sc),
	    letoh16(pfp->max_posted_cmd_buffers));

	sc->sc_porttype = pfp->port_type;
	/* XXX JPG no such field in MPI2 .... but the dilemma is what
	 * to return to sc_link.adapter_target ... is -1 acceptable? fake 255?
	if (sc->sc_target == -1)
		sc->sc_target = letoh16(pfp->port_scsi_id);
	*/

	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	rv = 0;
err:
	mpii_put_ccb(sc, ccb);

	return (rv);
}

void
mpii_eventack(struct mpii_softc *sc, struct mpii_msg_event_reply *enp)
{
	struct mpii_ccb				*ccb;
	struct mpii_msg_eventack_request	*eaq;

	ccb = mpii_get_ccb(sc);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_EVT, "%s: mpii_eventack ccb_get\n", DEVNAME(sc));
		return;
	}

	ccb->ccb_done = mpii_eventack_done;
	eaq = ccb->ccb_cmd;

	eaq->function = MPII_FUNCTION_EVENT_ACK;

	eaq->event = enp->event;
	eaq->event_context = enp->event_context;

	mpii_start(sc, ccb);
	return;
}

void
mpii_eventack_done(struct mpii_ccb *ccb)
{
	struct mpii_softc			*sc = ccb->ccb_sc;

	DNPRINTF(MPII_D_EVT, "%s: event ack done\n", DEVNAME(sc));

	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);
}

int
mpii_portenable(struct mpii_softc *sc)
{
	struct mpii_msg_portenable_request	*peq;
	struct mpii_msg_portenable_repy		*pep;
	struct mpii_ccb		*ccb;
	int			s;

	DNPRINTF(MPII_D_MISC, "%s: mpii_portenable\n", DEVNAME(sc));

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_portenable ccb_get\n",
		    DEVNAME(sc));
		return (1);
	}

	ccb->ccb_done = mpii_empty_done;
	peq = ccb->ccb_cmd;

	peq->function = MPII_FUNCTION_PORT_ENABLE;
	peq->vf_id = sc->sc_vf_id;

	if (mpii_poll(sc, ccb, 50000) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_portenable poll\n", DEVNAME(sc));
		return (1);
	}

	if (ccb->ccb_rcb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: empty portenable reply\n",
		    DEVNAME(sc));
		return (1);
	}
	pep = ccb->ccb_rcb->rcb_reply;

	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);

	return (0);
}

int
mpii_cfg_coalescing(struct mpii_softc *sc)
{
	struct mpii_cfg_hdr	hdr;
	struct mpii_cfg_ioc_pg1	pg;
	u_int32_t		flags;
	
	if (mpii_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_IOC, 1, 0, &hdr) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: unable to fetch IOC page 1 header\n",
		    DEVNAME(sc));
		return (1);
	}
	
	if (mpii_cfg_page(sc, 0, &hdr, 1, &pg, sizeof(pg)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: unable to fetch IOC page 1\n"
		    "page 1\n", DEVNAME(sc));
		return (1);
	}

	DNPRINTF(MPII_D_MISC, "%s: IOC page 1\n", DEVNAME(sc));
	DNPRINTF(MPII_D_MISC, "%s:  flags: 0x08%x\n", DEVNAME(sc),
	    letoh32(pg.flags));
	DNPRINTF(MPII_D_MISC, "%s:  coalescing_timeout: %d\n", DEVNAME(sc),
	    letoh32(pg.coalescing_timeout));
	DNPRINTF(MPII_D_MISC, "%s:  coalescing_depth: %d pci_slot_num: %d\n",
	    DEVNAME(sc), pg.coalescing_timeout, pg.pci_slot_num);

	flags = letoh32(pg.flags);
	if (!ISSET(flags, MPII_CFG_IOC_1_REPLY_COALESCING))
		return (0);

	CLR(pg.flags, htole32(MPII_CFG_IOC_1_REPLY_COALESCING));
	if (mpii_cfg_page(sc, 0, &hdr, 0, &pg, sizeof(pg)) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: unable to clear coalescing\n",
		    DEVNAME(sc));
		return (1);
	}

	return (0);
}

int
mpii_eventnotify(struct mpii_softc *sc)
{
	struct mpii_ccb				*ccb;
	struct mpii_msg_event_request		*enq;
	int					s;

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_eventnotify ccb_get\n",
		    DEVNAME(sc));
		return (1);
	}

	ccb->ccb_done = mpii_eventnotify_done;
	enq = ccb->ccb_cmd;

	enq->function = MPII_FUNCTION_EVENT_NOTIFICATION;

	/* enable reporting of the following events:	
	 *
	 * MPII_EVENT_SAS_DISCOVERY
	 * XXX remove MPII_EVENT_SAS_BROADCAST_PRIMITIVE
	 * MPII_EVENT_SAS_TOPOLOGY_CHANGE_LIST
	 * MPII_EVENT_SAS_DEVICE_STATUS_CHANGE
	 * MPII_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE
	 * MPII_EVENT_IR_CONFIGURATION_CHANGE_LIST
	 * MPII_EVENT_IR_VOLUME
	 * MPII_EVENT_IR_PHYSICAL_DISK
	 * MPII_EVENT_IR_OPERATION_STATUS
	 * MPII_EVENT_TASK_SET_FULL
	 * MPII_EVENT_LOG_ENTRY_ADDED
	 */

	/* XXX dynamically build event mask */
	enq->event_masks[0] = htole32(0x0f2f3fff);
	enq->event_masks[1] = htole32(0xfffffffc);
	enq->event_masks[2] = htole32(0xffffffff);
	enq->event_masks[3] = htole32(0xffffffff);

	s = splbio();	
	mpii_start(sc, ccb);
	splx(s);

	return (0);
}

void
mpii_event_process_ir_cfg_change_list(struct mpii_softc *sc, 
    struct mpii_msg_event_reply *enp)
{
	struct mpii_evt_ir_cfg_change_list	*ccl;
	struct mpii_evt_ir_cfg_element	*ce;
	struct mpii_device	*device; //, n;
	u_int16_t		type;
	u_int32_t		flags;
	int			i, volid;

	ccl = (struct mpii_evt_ir_cfg_change_list *)(enp + 1);

	flags = letoh32(ccl->flags);

	DNPRINTF(MPII_D_MAP, "%s: mpii_event_process_ir_cfg_change\n", 
	    DEVNAME(sc));
	DNPRINTF(MPII_D_MAP," %s:  flags: 0x%08x num_elements: %d\n",
	    DEVNAME(sc), flags, ccl->num_elements);

	if ((flags & MPII_EVT_IR_CFG_CHANGE_LIST_FLAGS_CFG_MASK) == 
	    MPII_EVT_IR_CFG_CHANGE_LIST_FLAGS_CFG_FOREIGN)
		/* bail on foreign configurations */
		return;

	if (ccl->num_elements == 0)
		return;

	ce = (struct mpii_evt_ir_cfg_element *)(ccl + 1);

	for (i = 0; i < ccl->num_elements; i++, ce++) {
		type = (letoh16(ce->element_flags) & 
		    MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_MASK);
		
		switch (type) {
		case MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_VOLUME:
			switch (ce->reason_code) {
			case MPII_EVT_IR_CFG_ELEMENT_RC_ADDED:
			case MPII_EVT_IR_CFG_ELEMENT_RC_VOLUME_CREATED:
				/* XXX check for exceeding boundaries */
				volid = sc->sc_vd_id_low + sc->sc_vd_count;

				/* do magic to map vol dev_handle to TID */
				DNPRINTF(MPII_D_MAP, "%s: mapping: attaching "
				    "vol_dev_handle: 0x%04x to volid %d\n", 
				    DEVNAME(sc), letoh16(ce->vol_dev_handle),
				    volid);
			
				if (sc->sc_mpii_dev[volid] == NULL) {
					device = malloc(sizeof(struct mpii_device), 
				    	    M_DEVBUF, M_NOWAIT | M_ZERO);
					if (device == NULL) {
						printf("%s: mpii_event_ir_cfg_change_list "
					    	    "unable to allocate mpii_device\n",
					    	DEVNAME(sc));
						continue;
					}
				
					sc->sc_vd_count++;
					device->type = MPII_DEV_TYPE_VD;
					device->dev_handle = letoh16(ce->vol_dev_handle);
					/* XXX bunch more fields */

					sc->sc_mpii_dev[volid] = device;
					RB_INSERT(mpii_dev_tree, &mpii_dev_head, sc->sc_mpii_dev[volid]);
				} else {
					if (!(sc->sc_mpii_dev[volid]->flags & MPII_DEV_UNUSED)) {
						printf("%s: mpii_evt_ir_cfg_change_list "
					    	    "volume id collision - volid %d\n", 
					    	    DEVNAME(sc), volid);
						continue;
					} else {
						/* sc->sc_mpii_dev[volid] already
						 * exists and is not flagged as
						 * UNUSED so we gracefully (sic)
						 * do nothing at this time.
						 */
					}
				}
				break;

			case MPII_EVT_IR_CFG_ELEMENT_RC_REMOVED:
			case MPII_EVT_IR_CFG_ELEMENT_RC_VOLUME_DELETED:
				/* do magic to remove volume */
				break;
	
			case MPII_EVT_IR_CFG_ELEMENT_RC_NO_CHANGE:
			default:
				break;
			}
			break;

		case MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_VOL_PD:
			switch (ce->reason_code) {		
			case MPII_EVT_IR_CFG_ELEMENT_RC_HIDE:
			case MPII_EVT_IR_CFG_ELEMENT_RC_PD_CREATED:
				/* do magic to hide/tag from OS view */
				//DNPRINTF(MPII_D_MAP, "%s: mapping: hiding "
				 //   "pd_dev_handle: 0x%04x\n", DEVNAME(sc),
				//	letoh16(ce->phys_disk_dev_handle));
				// n.dev_handle = letoh16(ce->phys_disk_dev_handle);
				// device = RB_FIND(mpii_dev_tree, &mpii_dev_head, &n);
				//device = NULL;
				//if (device)
				//	device->flags |= MPII_DEV_HIDDEN;
				break;

			case MPII_EVT_IR_CFG_ELEMENT_RC_UNHIDE:
			case MPII_EVT_IR_CFG_ELEMENT_RC_PD_DELETED:
				/* 
				 * XXX remove evidence of this disk (and no longer
				 * bother to hide it
				 */
				 break;

			case MPII_EVT_IR_CFG_ELEMENT_RC_NO_CHANGE:
			default:
				break;

			}
			break;

		case MPII_EVT_IR_CFG_ELEMENT_EF_ELEMENT_TYPE_HSP_PD:
			break;

		default:
			/* XXX oops */
			break;
		}
	}
}

void
mpii_event_process_sas_topo_change(struct mpii_softc *sc, 
    struct mpii_msg_event_reply *enp)
{
	struct mpii_evt_sas_topo_change_list	*tcl;
	struct mpii_evt_phy_entry	*pe;
	u_int8_t		reason_code;
	struct mpii_device	*device;
	int			i, slotid;

	tcl = (struct mpii_evt_sas_topo_change_list *)(enp + 1);

	DNPRINTF(MPII_D_MAP, "%s: sas_topo_change: start_phy_num: %d "
	    "num_entries: %d physical_port %d\n", DEVNAME(sc), 
	    tcl->start_phy_num, tcl->num_entries, tcl->physical_port);

	if (tcl->num_entries <= 0)
		return;

	pe = (struct mpii_evt_phy_entry *)(tcl + 1);

	for (i = 0; i < tcl->num_entries; i++, pe++) {
		reason_code = (pe->phy_status & MPII_EVENT_SAS_TOPO_PS_RC_MASK);

		switch (reason_code) {
		case MPII_EVENT_SAS_TOPO_PS_RC_TARG_ADDED:
			/* XXX begging to move this into a f() */
			DNPRINTF(MPII_D_MAP, "%s: mapping: attached_dev_handle: "
			    "0x%04x  link_rate: 0x%02x phy_status: 0x%02x\n", 
			    DEVNAME(sc), letoh16(pe->attached_dev_handle),
		    	    pe->link_rate, pe->phy_status);
			
			/* XXX check for exceeding boundaries */
			slotid = sc->sc_pd_id_start + tcl->start_phy_num + i;
			
			if (sc->sc_mpii_dev[slotid])
				if (!(sc->sc_mpii_dev[slotid]->flags & MPII_DEV_UNUSED)) {
					printf("%s: mpii_evt_sas_topo_change "
					    "slot id collision - slot %d\n", 
					    DEVNAME(sc), slotid);
					continue;
				}	

			device = malloc(sizeof(struct mpii_device), 
			    M_DEVBUF, M_NOWAIT | M_ZERO);
			if (device == NULL) {
				printf("%s: mpii_event_ir_cfg_change_list "
				    "unable to allocate mpii_device\n",
				    DEVNAME(sc));
				break;
			}
			
			sc->sc_pd_count++;		
			device->dev_handle = letoh16(pe->attached_dev_handle);
			device->phy_num = tcl->start_phy_num + i;
			device->type = MPII_DEV_TYPE_PD;
			if (tcl->enclosure_handle)
				device->physical_port = tcl->physical_port;
			device->enclosure_handle = letoh16(tcl->enclosure_handle);
			device->expander_dev_handle = letoh16(tcl->expander_dev_handle);
			/* XXX
			device->wwid = 
			device->flags =
			*/
			sc->sc_mpii_dev[slotid] = device;
			RB_INSERT(mpii_dev_tree, &mpii_dev_head, device);
			break;

		case MPII_EVENT_SAS_TOPO_PS_RC_TARG_NO_RESPOND_MISS:
			/* according to MPI2 we need to:
			 * a. abort all outstanding I/O operations
			 * b. send a SAS IO unit control request w/ operation
			 *    set to MPII_SAS_OP_REMOVE_DEVICE to remove all IOC
			 *    resources associated with the device.
			 */
		case MPII_EVENT_SAS_TOPO_PS_RC_PHY_LINK_STATE_CHANGE:
		case MPII_EVENT_SAS_TOPO_PS_RC_PHY_LINK_STATE_NOCHNG:
		case MPII_EVENT_SAS_TOPO_PS_RC_WITHIN_DELAY_TIMER:
		default:
			DNPRINTF(MPII_D_EVT, "%s: unhandled "
			    "mpii_event_sas_topo_change reason code\n", 
			    DEVNAME(sc));
			break;
		}
	}
}

void
mpii_event_process_sas_discovery(struct mpii_softc *sc, struct mpii_msg_event_reply *enp)
{
	struct mpii_evt_sas_discovery	*ds;

	ds = (struct mpii_evt_sas_discovery *)(enp + 1);

	if ((ds->flags & MPII_EVENT_SAS_DISC_FLAGS_DISC_IN_PROG_MASK) == 
	    MPII_EVENT_SAS_DISC_FLAGS_DISC_IN_PROGRESS)
		sc->sc_discovery_in_progress = 1;
	else
		sc->sc_discovery_in_progress = 0;

	switch (ds->reason_code) {
	case MPII_EVENT_SAS_DISC_REASON_CODE_STARTED:
		break;
	case MPII_EVENT_SAS_DISC_REASON_CODE_COMPLETED:
		/* XXX look at ds->discovery_status */
		break;
	default:
		DNPRINTF(MPII_D_EVT, "%s: unknown reason for SAS device status "
		    "change: 0x%02x\n", DEVNAME(sc), ds->reason_code);
		break;
	}
}

void
mpii_event_process_ir_phys_disk(struct mpii_softc *sc, struct mpii_msg_event_reply *enp)
{
	struct mpii_evt_ir_physical_disk	*ipd;

	ipd = (struct mpii_evt_ir_physical_disk *)(enp + 1);

	/* XXX TODO:
	 *     process the event fully
	 *     understand that this is necesarily a IR_PD
	 */
}

void
mpii_event_process(struct mpii_softc *sc, struct mpii_msg_reply *prm)
{
	struct mpii_msg_event_reply		*enp = (struct mpii_msg_event_reply *)prm;

	DNPRINTF(MPII_D_EVT, "%s: mpii_event_process\n", DEVNAME(sc));

	DNPRINTF(MPII_D_EVT, "%s:  function: 0x%02x msg_length: %d "
	    "event_data_length: %d\n", DEVNAME(sc), enp->function, 
	    enp->msg_length, letoh16(enp->event_data_length));
	DNPRINTF(MPII_D_EVT, "%s:  ack_required: %d msg_flags 0x%02x\n",
	    DEVNAME(sc), enp->ack_required, enp->msg_flags);
	DNPRINTF(MPII_D_EVT, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(enp->ioc_status));
	DNPRINTF(MPII_D_EVT, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(enp->ioc_loginfo));
	DNPRINTF(MPII_D_EVT, "%s:  event: 0x%08x\n", DEVNAME(sc),
	    letoh32(enp->event));
	DNPRINTF(MPII_D_EVT, "%s:  event_context: 0x%08x\n", DEVNAME(sc),
	    letoh32(enp->event_context));
	
	switch (letoh32(enp->event)) {
	case MPII_EVENT_SAS_DISCOVERY:
		mpii_event_process_sas_discovery(sc, enp);
		break;

	case MPII_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
		mpii_event_process_sas_topo_change(sc, enp);
		break;

	case MPII_EVENT_SAS_DEVICE_STATUS_CHANGE:
		/* XXX */
		break;

	case MPII_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
		/* XXX track enclosures coming/going */
		break;

	case MPII_EVENT_IR_VOLUME:
		/* XXX */
		break;

	case MPII_EVENT_IR_PHYSICAL_DISK:
		mpii_event_process_ir_phys_disk(sc, enp);
		break;

	case MPII_EVENT_IR_CONFIGURATION_CHANGE_LIST:
		mpii_event_process_ir_cfg_change_list(sc, enp);
		break;

	case MPII_EVENT_IR_OPERATION_STATUS:
	case MPII_EVENT_TASK_SET_FULL:
	case MPII_EVENT_LOG_ENTRY_ADDED:

	default:
		DNPRINTF(MPII_D_EVT, "%s:  unhandled event 0x%02x\n",
		    DEVNAME(sc), letoh32(enp->event));
		break;
	}

#ifdef MPII_DEBUG
	int i;
	for (i = 0; i < enp->event_data_length; i++) {
		DNPRINTF(MPII_D_EVT, "%s:  event_data: 0x%08x\n", DEVNAME(sc),
		    dwordn((enp+1), i));
	}
#endif /* MPII_DEBUG */

	if (enp->ack_required)
		mpii_eventack(sc, enp);
}	

void
mpii_eventnotify_done(struct mpii_ccb *ccb)
{
	struct mpii_softc			*sc = ccb->ccb_sc;

	DNPRINTF(MPII_D_EVT, "%s: mpii_eventnotify_done\n", DEVNAME(sc));

	mpii_event_process(sc, ccb->ccb_rcb->rcb_reply);

	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);
}

int
mpii_get_bios_pg2(struct mpii_softc *sc)
{
	struct mpii_cfg_hdr	hdr;
	size_t			pagelen;
	int			rv = 0;

	DNPRINTF(MPII_D_RAID, "%s: mpii_get_bios_pg2\n", DEVNAME(sc));

	if (mpii_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_BIOS, 2, 0, &hdr) != 0) {
		DNPRINTF(MPII_D_RAID, "%s: mpii_get_bios_pg2 unable to fetch "
		    "header for BIOS page 2\n", DEVNAME(sc));
		return (1);
	}

	pagelen = hdr.page_length * 4;
	sc->sc_bios_pg2 = malloc(pagelen, M_TEMP, M_NOWAIT | M_CANFAIL);
	if (sc->sc_bios_pg2 == NULL) {
		DNPRINTF(MPII_D_RAID, "%s: mpii_get_bios_pg2 unable to "
		    "allocate space for BIOS page 2\n", DEVNAME(sc));
		return (1);
	}

	if (mpii_cfg_page(sc, 0, &hdr, 1, sc->sc_bios_pg2, pagelen) != 0) {
		DNPRINTF(MPII_D_RAID, "%s: mpii_get_bios_pg2 unable to "
		    "fetch BIOS config page 2\n", DEVNAME(sc));
		rv = 1;
		goto out;
	}

	DNPRINTF(MPII_D_RAID, "%s: req_boot_device_form: 0x%02x "
	    "req_alt_boot_device_form: 0x%02x current_boot_device_form: "
	    "0x%02x\n", DEVNAME(sc), sc->sc_bios_pg2->req_boot_device_form, 
	    sc->sc_bios_pg2->req_alt_boot_device_form, 
	    sc->sc_bios_pg2->current_boot_device_form);

out:
	free(sc->sc_bios_pg2, M_TEMP);

	return (rv);
}

int
mpii_get_dpm(struct mpii_softc *sc)
{
	/* XXX consider expanding (or is that reducing) functionality to support
	 * non-dpm mode of operation when the following fails, but iocfacts
	 * indicated that the ioc supported dmp
	 */
	if (!sc->sc_dpm_enabled) 
		return (1);

	if (mpii_get_dpm_pg0(sc, sc->sc_dpm_pg0) != 0) 
		return (1);
	
	return (0);
}

int
mpii_get_dpm_pg0(struct mpii_softc *sc, struct mpii_cfg_dpm_pg0 *dpm_page)
{
	struct mpii_msg_config_request		*cq;
	struct mpii_msg_config_reply		*cp;
	struct mpii_ccb				*ccb;
	struct mpii_dpm_entry	*dpm_entry;
	struct mpii_ecfg_hdr	ehdr;
	struct mpii_dmamem	*dmapage;
	u_int64_t		dva;
	char			*kva;
	size_t			pagelen;
	u_int32_t		address;
	int			rv = 0, s;

	DNPRINTF(MPII_D_RAID, "%s: mpii_get_dpm_pg0\n", DEVNAME(sc));

	if (mpii_ecfg_header(sc, 
	    MPII_CONFIG_REQ_PAGE_TYPE_DRIVER_MAPPING, 0, 0, &ehdr)) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_get_dpm_pg0 unable to fetch"
		    " header for driver mapping page 0\n", DEVNAME(sc));
		return (1);
	}

	pagelen = sizeof(struct mpii_ecfg_hdr) + sc->sc_max_dpm_entries * 
	    sizeof(struct mpii_dpm_entry);
	
	dpm_page = malloc(pagelen, M_TEMP, M_NOWAIT | M_CANFAIL);
	if (dpm_page == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_get_dpm_pg0 unable to allocate "
		    "space for device persistence mapping page 0\n", DEVNAME(sc));
		return (1);
	}
	
	dmapage = mpii_dmamem_alloc(sc, pagelen);
	if (dmapage == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_get_dpm_pg0 unable to allocate "
		    "space for dpm dma buffer\n", DEVNAME(sc));
		return (1);
	}

	/* the current mpii_req_cfg_page() (and associated macro wrappers) do
	 * not allow large page length nor is is flexible in allowing actions
	 * other that READ_CURRENT or WRITE_CURRENT. since we need to READ_NVRAM
	 * and we need a pagelength around 2580 bytes this function currently
	 * manually creates and drives the config request.
	 *  
	 * XXX modify the mpii_req_cfg_page() to allow the caller to specify:
	 *     - alternate actions
	 *     - use passed-in dma-able buffer OR allocate within function if
	 *     the page length exceeds the left over space in the request frame
	 */

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_get_dpm_pg0 ccb_get\n", DEVNAME(sc));
		return (1);
	}

	address = sc->sc_max_dpm_entries << MPII_DPM_ADDRESS_ENTRY_COUNT_SHIFT;

	cq = ccb->ccb_cmd;

	cq->function = MPII_FUNCTION_CONFIG;
	cq->action = MPII_CONFIG_REQ_ACTION_PAGE_READ_NVRAM;
	
	cq->config_header.page_version = ehdr.page_version;
	cq->config_header.page_number = ehdr.page_number;
	cq->config_header.page_type = ehdr.page_type;
	cq->ext_page_len = htole16(pagelen / 4);
	cq->ext_page_type = ehdr.ext_page_type;
	cq->config_header.page_type &= MPII_CONFIG_REQ_PAGE_TYPE_MASK;
	cq->page_address = htole32(address);
	cq->page_buffer.sg_hdr = htole32(MPII_SGE_FL_TYPE_SIMPLE |
	    MPII_SGE_FL_LAST | MPII_SGE_FL_EOB | MPII_SGE_FL_EOL |
	    (pagelen * 4) | MPII_SGE_FL_DIR_IN);
	 
	dva = MPII_DMA_DVA(dmapage);
	cq->page_buffer.sg_hi_addr = htole32((u_int32_t)(dva >> 32));
	cq->page_buffer.sg_lo_addr = htole32((u_int32_t)dva);

/*	kva = ccb->ccb_cmd;
	kva += sizeof(struct mpii_msg_config_request);
*/
	//kva = MPII_DMA_KVA(page);

  	ccb->ccb_done = mpii_empty_done; 
	if (mpii_poll(sc, ccb, 50000) != 0) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_header poll\n",
		    DEVNAME(sc));
		return (1);
	}

	if (ccb->ccb_rcb == NULL) {
		mpii_put_ccb(sc, ccb);
		return (1);
	}
	cp = ccb->ccb_rcb->rcb_reply;

	DNPRINTF(MPII_D_MISC, "%s:  action: 0x%02x sglflags: 0x%02x "
	    "msg_length: %d function: 0x%02x\n", DEVNAME(sc), cp->action, 
	    cp->msg_length, cp->function);
	DNPRINTF(MPII_D_MISC, "%s:  ext_page_length: %d ext_page_type: 0x%02x "
	    "msg_flags: 0x%02x\n", DEVNAME(sc),
	    letoh16(cp->ext_page_length), cp->ext_page_type,
	    cp->msg_flags);
	DNPRINTF(MPII_D_MISC, "%s:  vp_id: 0x%02x vf_id: 0x%02x\n", DEVNAME(sc),
	    cp->vp_id, cp->vf_id);
	DNPRINTF(MPII_D_MISC, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(cp->ioc_status));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(cp->ioc_loginfo));
	DNPRINTF(MPII_D_MISC, "%s:  page_version: 0x%02x page_length: %d "
	    "page_number: 0x%02x page_type: 0x%02x\n", DEVNAME(sc),
	    cp->config_header.page_version,
	    cp->config_header.page_length,
	    cp->config_header.page_number,
	    cp->config_header.page_type);

	kva = MPII_DMA_KVA(dmapage);

#ifdef MPII_DEBUG
	int i, j;
	for (i = 0; i < sc->sc_max_dpm_entries; i++) {
		printf(" (%d) ", i);
		for (j = 0; j < sizeof(struct mpii_dpm_entry); j++)
			printf("%x", (char *)(kva + j + (i * sizeof(struct mpii_dpm_entry))));
		printf("\n");
	}
#endif

	if (letoh16(cp->ioc_status) != MPII_IOCSTATUS_SUCCESS)
		rv = 1;
	/*else
		bcopy(kva, page, pagelen);
*/
	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);

	dpm_entry = (struct mpii_dpm_entry *)(kva + sizeof(struct mpii_ecfg_hdr));
	
//	bcopy(dpm_page, cp, pagelen * 4);

#ifdef MPII_DEBUG 
	for (i = 0; i < sc->sc_max_dpm_entries; i++, dpm_entry++)
		printf("%s:  [%d] physid: 0x%lx mappinginfo: 0x%04x devindex: 0x%04x "
		    "physicabitsmapping: 0x%08x\n", DEVNAME(sc), i,
		    letoh64(dpm_entry->physical_identifier), 
		    letoh16(dpm_entry->mapping_information),
		    letoh16(dpm_entry->device_index), 
		    letoh32(dpm_entry->physical_bits_mapping));
#endif

	free(dpm_page, M_TEMP);
	mpii_dmamem_free(sc, dmapage);
	return (rv);
}

int
mpii_get_ioc_pg8(struct mpii_softc *sc)
{
	struct mpii_cfg_hdr	hdr;
	struct mpii_cfg_ioc_pg8	*page;
	size_t			pagelen;
	u_int16_t		flags;
	int			rv = 0;

	DNPRINTF(MPII_D_RAID, "%s: mpii_get_ioc_pg8\n", DEVNAME(sc));

	if (mpii_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_IOC, 8, 0, &hdr) != 0) {
		DNPRINTF(MPII_D_CFG, "%s: mpii_get_ioc_pg8 unable to fetch header"
		    "for IOC page 8\n", DEVNAME(sc));
		return (1);
	}

	pagelen = hdr.page_length * 4; /* dwords to bytes */
	
	page = malloc(pagelen, M_TEMP, M_NOWAIT | M_CANFAIL);
	if (page == NULL) {
		DNPRINTF(MPII_D_CFG, "%s: mpii_get_ioc_pg8 unable to allocate "
		    "space for ioc config page 8\n", DEVNAME(sc));
		return (1);
	}

	if (mpii_cfg_page(sc, 0, &hdr, 1, page, pagelen) != 0) {
		DNPRINTF(MPII_D_CFG, "%s: mpii_get_raid unable to fetch IOC "
		    "page 8\n", DEVNAME(sc));
		rv = 1;
		goto out;
	}

	DNPRINTF(MPII_D_CFG, "%s:  numdevsperenclosure: 0x%02x\n", DEVNAME(sc),
	    page->num_devs_per_enclosure);
	DNPRINTF(MPII_D_CFG, "%s:  maxpersistententries: 0x%04x "
	    "maxnumphysicalmappedids: 0x%04x\n", DEVNAME(sc),
	    letoh16(page->max_persistent_entries), 
	    letoh16(page->max_num_physical_mapped_ids));
	DNPRINTF(MPII_D_CFG, "%s:  flags: 0x%04x\n", DEVNAME(sc),
	    letoh16(page->flags));
	DNPRINTF(MPII_D_CFG, "%s:  irvolumemappingflags: 0x%04x\n", 
	    DEVNAME(sc), letoh16(page->ir_volume_mapping_flags));

#if 0
	if (!(page->flags & MPII_IOC_PG8_FLAGS_ENCLOSURE_SLOT_MAPPING))
		/* XXX we don't currently handle persistent mapping mode */
		printf("%s: warning: controller requested device persistence "
		    "mapping mode is not supported.\n");
#endif

	sc->sc_max_dpm_entries = page->max_persistent_entries;
	sc->sc_dpm_enabled = (sc->sc_max_dpm_entries) ? 1 : 0;

	if (page->flags & MPII_IOC_PG8_FLAGS_DISABLE_PERSISTENT_MAPPING)
		sc->sc_dpm_enabled = 0;

	sc->sc_pd_id_start = 0;

	if (page->flags & MPII_IOC_PG8_FLAGS_RESERVED_TARGETID_0) {
		sc->sc_reserve_tid0 = 1;
		sc->sc_num_reserved_entries = 1;
		sc->sc_pd_id_start = 1;
	} else
		sc->sc_num_reserved_entries = 0;

	flags = page->ir_volume_mapping_flags && 
	    MPII_IOC_PG8_IRFLAGS_VOLUME_MAPPING_MODE_MASK;
	if (sc->sc_ir_firmware) {
		if (flags == MPII_IOC_PG8_IRFLAGS_LOW_VOLUME_MAPPING) {
			sc->sc_num_reserved_entries += sc->sc_max_volumes;
			sc->sc_vd_id_low = 0;
			if (page->flags & MPII_IOC_PG8_FLAGS_RESERVED_TARGETID_0)
				sc->sc_vd_id_low = 1;
		} else
			sc->sc_vd_id_low = sc->sc_max_devices - sc->sc_max_volumes;
		sc->sc_vd_id_hi = sc->sc_vd_id_low + sc->sc_max_volumes - 1;
		sc->sc_pd_id_start = sc->sc_vd_id_hi + 1;
	}

	DNPRINTF(MPII_D_MAP, "%s: mpii_get_ioc_pg8 mapping: sc_pd_id_start: %d "
	    "sc_vd_id_low: %d sc_vd_id_hi: %d\n", DEVNAME(sc), 
	    sc->sc_pd_id_start, sc->sc_vd_id_low, sc->sc_vd_id_hi);

out:
	free(page, M_TEMP);

	return(rv);
}

int
mpii_req_cfg_header(struct mpii_softc *sc, u_int8_t type, u_int8_t number,
    u_int32_t address, int flags, void *p)
{
	struct mpii_msg_config_request		*cq;
	struct mpii_msg_config_reply		*cp;
	struct mpii_cfg_hdr	*hdr = p;
	struct mpii_ccb		*ccb;
	struct mpii_ecfg_hdr	*ehdr = p;
	int			etype = 0;
	int			rv = 0;
	int			s;

	DNPRINTF(MPII_D_MISC, "%s: mpii_req_cfg_header type: %#x number: %x "
	    "address: 0x%08x flags: 0x%b\n", DEVNAME(sc), type, number,
	    address, flags, MPII_PG_FMT);

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_header ccb_get\n",
		    DEVNAME(sc));
		return (1);
	}

	if (ISSET(flags, MPII_PG_EXTENDED)) {
		etype = type;
		type = MPII_CONFIG_REQ_PAGE_TYPE_EXTENDED;
	}

	cq = ccb->ccb_cmd;

	cq->function = MPII_FUNCTION_CONFIG;

	cq->action = MPII_CONFIG_REQ_ACTION_PAGE_HEADER;

	cq->config_header.page_number = number;
	cq->config_header.page_type = type;
	cq->ext_page_type = etype;
	cq->page_address = htole32(address);
	cq->page_buffer.sg_hdr = htole32(MPII_SGE_FL_TYPE_SIMPLE |
	    MPII_SGE_FL_LAST | MPII_SGE_FL_EOB | MPII_SGE_FL_EOL);

	if (ISSET(flags, MPII_PG_POLL)) {
		ccb->ccb_done = mpii_empty_done;
		if (mpii_poll(sc, ccb, 50000) != 0) {
			DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_header poll\n",
			    DEVNAME(sc));
			return (1);
		}
	} else {
		ccb->ccb_done = (void (*)(struct mpii_ccb *))wakeup;
		s = splbio();
		mpii_start(sc, ccb);
		while (ccb->ccb_state != MPII_CCB_READY)
			tsleep(ccb, PRIBIO, "mpiipghdr", 0);
		splx(s);
	}

	if (ccb->ccb_rcb == NULL) {
		s = splbio();
		mpii_put_ccb(sc, ccb);
		splx(s);
		return (1);
	}
	cp = ccb->ccb_rcb->rcb_reply;

	DNPRINTF(MPII_D_MISC, "%s:  action: 0x%02x sgl_flags: 0x%02x "
	    "msg_length: %d function: 0x%02x\n", DEVNAME(sc), cp->action, 
	    cp->sgl_flags, cp->msg_length, cp->function);
	DNPRINTF(MPII_D_MISC, "%s:  ext_page_length: %d ext_page_type: 0x%02x "
	    "msg_flags: 0x%02x\n", DEVNAME(sc),
	    letoh16(cp->ext_page_length), cp->ext_page_type,
	    cp->msg_flags);
	DNPRINTF(MPII_D_MISC, "%s:  vp_id: 0x%02x vf_id: 0x%02x\n", DEVNAME(sc),
	    cp->vp_id, cp->vf_id);	
	DNPRINTF(MPII_D_MISC, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(cp->ioc_status));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(cp->ioc_loginfo));
	DNPRINTF(MPII_D_MISC, "%s:  page_version: 0x%02x page_length: %d "
	    "page_number: 0x%02x page_type: 0x%02x\n", DEVNAME(sc),
	    cp->config_header.page_version,
	    cp->config_header.page_length,
	    cp->config_header.page_number,
	    cp->config_header.page_type);

	if (letoh16(cp->ioc_status) != MPII_IOCSTATUS_SUCCESS)
		rv = 1;
	else if (ISSET(flags, MPII_PG_EXTENDED)) {
		bzero(ehdr, sizeof(*ehdr));
		ehdr->page_version = cp->config_header.page_version;
		ehdr->page_number = cp->config_header.page_number;
		ehdr->page_type = cp->config_header.page_type;
		ehdr->ext_page_length = cp->ext_page_length;
		ehdr->ext_page_type = cp->ext_page_type;
	} else
		*hdr = cp->config_header;

	s = splbio();
	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);
	splx(s);

	return (rv);
}

int
mpii_req_cfg_page(struct mpii_softc *sc, u_int32_t address, int flags,
    void *p, int read, void *page, size_t len)
{
	struct mpii_msg_config_request		*cq;
	struct mpii_msg_config_reply		*cp;
	struct mpii_cfg_hdr	*hdr = p;
	struct mpii_ccb		*ccb;
	struct mpii_ecfg_hdr	*ehdr = p;
	u_int64_t		dva;
	char			*kva;
	int			page_length;
	int			rv = 0;
	int			s;

	DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_page address: %d read: %d type: %x\n",
	    DEVNAME(sc), address, read, hdr->page_type);

	page_length = ISSET(flags, MPII_PG_EXTENDED) ?
	    letoh16(ehdr->ext_page_length) : hdr->page_length;

	if (len > MPII_REQUEST_SIZE - sizeof(struct mpii_msg_config_request) ||
    	    len < page_length * 4)
		return (1);

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_page ccb_get\n", DEVNAME(sc));
		return (1);
	}

	cq = ccb->ccb_cmd;

	cq->function = MPII_FUNCTION_CONFIG;

	cq->action = (read ? MPII_CONFIG_REQ_ACTION_PAGE_READ_CURRENT :
	    MPII_CONFIG_REQ_ACTION_PAGE_WRITE_CURRENT);

	if (ISSET(flags, MPII_PG_EXTENDED)) {
		cq->config_header.page_version = ehdr->page_version;
		cq->config_header.page_number = ehdr->page_number;
		cq->config_header.page_type = ehdr->page_type;
		cq->ext_page_len = ehdr->ext_page_length;
		cq->ext_page_type = ehdr->ext_page_type;
	} else
		cq->config_header = *hdr;
	cq->config_header.page_type &= MPII_CONFIG_REQ_PAGE_TYPE_MASK;
	cq->page_address = htole32(address);
	cq->page_buffer.sg_hdr = htole32(MPII_SGE_FL_TYPE_SIMPLE |
	    MPII_SGE_FL_LAST | MPII_SGE_FL_EOB | MPII_SGE_FL_EOL |
	    MPII_SGE_FL_SIZE_64 | (page_length * 4) |
	    (read ? MPII_SGE_FL_DIR_IN : MPII_SGE_FL_DIR_OUT));

	/* bounce the page via the request space to avoid more bus_dma games */
	dva = ccb->ccb_cmd_dva + sizeof(struct mpii_msg_config_request);

	cq->page_buffer.sg_hi_addr = htole32((u_int32_t)(dva >> 32));
	cq->page_buffer.sg_lo_addr = htole32((u_int32_t)dva);

	kva = ccb->ccb_cmd;
	kva += sizeof(struct mpii_msg_config_request);

	if (!read)
		bcopy(page, kva, len);

	if (ISSET(flags, MPII_PG_POLL)) {
		ccb->ccb_done = mpii_empty_done;
		if (mpii_poll(sc, ccb, 50000) != 0) {
			DNPRINTF(MPII_D_MISC, "%s: mpii_cfg_header poll\n",
			    DEVNAME(sc));
			return (1);
		}
	} else {
		ccb->ccb_done = (void (*)(struct mpii_ccb *))wakeup;
		s = splbio();
		mpii_start(sc, ccb);
		while (ccb->ccb_state != MPII_CCB_READY)
			tsleep(ccb, PRIBIO, "mpiipghdr", 0);
		splx(s);
	}

	if (ccb->ccb_rcb == NULL) {
		s = splbio();
		mpii_put_ccb(sc, ccb);
		splx(s);
		return (1);
	}
	cp = ccb->ccb_rcb->rcb_reply;

	DNPRINTF(MPII_D_MISC, "%s:  action: 0x%02x sglflags: 0x%02x "
	    "msg_length: %d function: 0x%02x\n", DEVNAME(sc), cp->action, 
	    cp->msg_length, cp->function);
	DNPRINTF(MPII_D_MISC, "%s:  ext_page_length: %d ext_page_type: 0x%02x "
	    "msg_flags: 0x%02x\n", DEVNAME(sc),
	    letoh16(cp->ext_page_length), cp->ext_page_type,
	    cp->msg_flags);
	DNPRINTF(MPII_D_MISC, "%s:  vp_id: 0x%02x vf_id: 0x%02x\n", DEVNAME(sc),
	    cp->vp_id, cp->vf_id);
	DNPRINTF(MPII_D_MISC, "%s:  ioc_status: 0x%04x\n", DEVNAME(sc),
	    letoh16(cp->ioc_status));
	DNPRINTF(MPII_D_MISC, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(cp->ioc_loginfo));
	DNPRINTF(MPII_D_MISC, "%s:  page_version: 0x%02x page_length: %d "
	    "page_number: 0x%02x page_type: 0x%02x\n", DEVNAME(sc),
	    cp->config_header.page_version,
	    cp->config_header.page_length,
	    cp->config_header.page_number,
	    cp->config_header.page_type);
	
	if (letoh16(cp->ioc_status) != MPII_IOCSTATUS_SUCCESS)
		rv = 1;
	else if (read)
		bcopy(kva, page, len);

	s = splbio();
	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);
	splx(s);

	return (rv);
}

int
mpii_reply(struct mpii_softc *sc, struct mpii_reply_descriptor *rdp)
{
	struct mpii_ccb		*ccb = NULL;
	struct mpii_rcb		*rcb = NULL;
	u_int8_t		reply_flags;
	u_int32_t		i;
	int			smid;


	DNPRINTF(MPII_D_INTR, "%s: mpii_reply\n", DEVNAME(sc));

	DNPRINTF(MPII_D_INTR, "%s:  dword[0]: 0x%08x\n", DEVNAME(sc), 
	    letoh32(dwordn(rdp, 0)));
	DNPRINTF(MPII_D_INTR, "%s:  dword[1]: 0x%08x\n", DEVNAME(sc), 
	    letoh32(dwordn(rdp, 1)));

	reply_flags = (u_int8_t)(rdp->reply_flags) & 
	    MPII_REPLY_DESCR_FLAGS_TYPE_MASK;

	/* smid */
	smid = letoh16(rdp->type_dependent1);

	if (reply_flags == MPII_REPLY_DESCR_FLAGS_ADDRESS_REPLY) {
		/* reply frame address */
		i = (letoh32(rdp->type_dependent2) -
		    (u_int32_t)MPII_DMA_DVA(sc->sc_replies)) / MPII_REPLY_SIZE;

		bus_dmamap_sync(sc->sc_dmat,
		    MPII_DMA_MAP(sc->sc_replies), MPII_REPLY_SIZE * i,
		    MPII_REPLY_SIZE, BUS_DMASYNC_POSTREAD);
		
		rcb = &sc->sc_rcbs[i];
	}

	DNPRINTF(MPII_D_INTR, "%s: mpii_reply reply_flags: %d smid: %d reply: %p\n",
	    DEVNAME(sc), reply_flags, smid, rcb->rcb_reply);

	memset(rdp, 0xff, sizeof(*rdp));

	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_reply_postq), 
	    8 * sc->sc_reply_post_host_index, 8, 
	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);

	if (smid)  {
		ccb = &sc->sc_ccbs[smid - 1];
		ccb->ccb_state = MPII_CCB_READY;
		ccb->ccb_rcb = rcb;
		ccb->ccb_done(ccb);
	} else
		mpii_event_process(sc, rcb->rcb_reply);

	return (smid);
}

struct mpii_dmamem *
mpii_dmamem_alloc(struct mpii_softc *sc, size_t size)
{
	struct mpii_dmamem	*mdm;
	int			nsegs;

	mdm = malloc(sizeof(struct mpii_dmamem), M_DEVBUF, M_NOWAIT | M_ZERO);
	if (mdm == NULL)
		return (NULL);

	mdm->mdm_size = size;

	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
	    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &mdm->mdm_map) != 0)
		goto mdmfree;

	if (bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &mdm->mdm_seg,
	    1, &nsegs, BUS_DMA_NOWAIT) != 0)
		goto destroy;

	if (bus_dmamem_map(sc->sc_dmat, &mdm->mdm_seg, nsegs, size,
	    &mdm->mdm_kva, BUS_DMA_NOWAIT) != 0)
		goto free;

	if (bus_dmamap_load(sc->sc_dmat, mdm->mdm_map, mdm->mdm_kva, size,
	    NULL, BUS_DMA_NOWAIT) != 0)
		goto unmap;

	DNPRINTF(MPII_D_MEM, "  kva: %p  dva: %p  map: %p  size: %d\n",
	    mdm->mdm_kva, mdm->mdm_map->dm_segs[0].ds_addr, mdm->mdm_map,
	    size);

	bzero(mdm->mdm_kva, size);

	return (mdm);

unmap:
	bus_dmamem_unmap(sc->sc_dmat, mdm->mdm_kva, size);
free:
	bus_dmamem_free(sc->sc_dmat, &mdm->mdm_seg, 1);
destroy:
	bus_dmamap_destroy(sc->sc_dmat, mdm->mdm_map);
mdmfree:
	free(mdm, M_DEVBUF);

	return (NULL);
}

void
mpii_dmamem_free(struct mpii_softc *sc, struct mpii_dmamem *mdm)
{
	DNPRINTF(MPII_D_MEM, "%s: mpii_dmamem_free %#x\n", DEVNAME(sc), mdm);

	bus_dmamap_unload(sc->sc_dmat, mdm->mdm_map);
	bus_dmamem_unmap(sc->sc_dmat, mdm->mdm_kva, mdm->mdm_size);
	bus_dmamem_free(sc->sc_dmat, &mdm->mdm_seg, 1);
	bus_dmamap_destroy(sc->sc_dmat, mdm->mdm_map);
	free(mdm, M_DEVBUF);
}

int
mpii_alloc_dev(struct mpii_softc *sc)
{
	DNPRINTF(MPII_D_MEM, "%s: mpii_alloc_dev: sc_max_devices: %d "
	    "sizeof(sc_mpii_dev): %d\n", DEVNAME(sc), sc->sc_max_devices,
	    sizeof(struct mpii_device *) * sc->sc_max_devices);

	sc->sc_mpii_dev = malloc(sc->sc_max_devices * 
	    sizeof(struct mpii_device *), M_DEVBUF, 
	    M_NOWAIT | M_CANFAIL | M_ZERO);

	if (sc->sc_mpii_dev == NULL) 
		return (1);

	return (0);
}

int
mpii_alloc_ccbs(struct mpii_softc *sc)
{
	struct mpii_ccb		*ccb;
	u_int8_t		*cmd;
	int			i;

	TAILQ_INIT(&sc->sc_ccb_free);

	sc->sc_ccbs = malloc(sizeof(struct mpii_ccb) * (sc->sc_request_depth-1),
	    M_DEVBUF, M_NOWAIT | M_CANFAIL | M_ZERO);
	if (sc->sc_ccbs == NULL) {
		printf("%s: unable to allocate ccbs\n", DEVNAME(sc));
		return (1);
	}

	sc->sc_requests = mpii_dmamem_alloc(sc,
	    MPII_REQUEST_SIZE * sc->sc_request_depth);
	if (sc->sc_requests == NULL) {
		printf("%s: unable to allocate ccb dmamem\n", DEVNAME(sc));
		goto free_ccbs;
	}
	cmd = MPII_DMA_KVA(sc->sc_requests);
	bzero(cmd, MPII_REQUEST_SIZE * sc->sc_request_depth);

	/* 
	 * we have sc->sc_request_depth system request message 
	 * frames, but smid zero cannot be used. so we then 
	 * have (sc->sc_request_depth - 1) number of ccbs
	 */
	for (i = 1; i < sc->sc_request_depth; i++) {
		ccb = &sc->sc_ccbs[i - 1];

		if (bus_dmamap_create(sc->sc_dmat, MAXPHYS,
		    sc->sc_max_sgl_len, MAXPHYS, 0,
		    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW,
		    &ccb->ccb_dmamap) != 0) {
			printf("%s: unable to create dma map\n", DEVNAME(sc));
			goto free_maps;
		}

		ccb->ccb_sc = sc;
		ccb->ccb_smid = i;
		ccb->ccb_offset = MPII_REQUEST_SIZE * i;

		ccb->ccb_cmd = &cmd[ccb->ccb_offset];
		ccb->ccb_cmd_dva = (u_int32_t)MPII_DMA_DVA(sc->sc_requests) +
		    ccb->ccb_offset;

		DNPRINTF(MPII_D_CCB, "%s: mpii_alloc_ccbs(%d) ccb: %#x map: %#x "
		    "sc: %#x smid: %#x offs: %#x cmd: %#x dva: %#x\n",
		    DEVNAME(sc), i, ccb, ccb->ccb_dmamap, ccb->ccb_sc,
		    ccb->ccb_smid, ccb->ccb_offset, ccb->ccb_cmd,
		    ccb->ccb_cmd_dva);

		mpii_put_ccb(sc, ccb);
	}

	return (0);

free_maps:
	while ((ccb = mpii_get_ccb(sc)) != NULL)
		bus_dmamap_destroy(sc->sc_dmat, ccb->ccb_dmamap);

	mpii_dmamem_free(sc, sc->sc_requests);
free_ccbs:
	free(sc->sc_ccbs, M_DEVBUF);

	return (1);
}

void
mpii_put_ccb(struct mpii_softc *sc, struct mpii_ccb *ccb)
{
	DNPRINTF(MPII_D_CCB, "%s: mpii_put_ccb %#x\n", DEVNAME(sc), ccb);

	ccb->ccb_state = MPII_CCB_FREE;
	ccb->ccb_xs = NULL;
	ccb->ccb_done = NULL;
	ccb->ccb_rcb = NULL;
	bzero(ccb->ccb_cmd, MPII_REQUEST_SIZE);
	TAILQ_INSERT_TAIL(&sc->sc_ccb_free, ccb, ccb_link);
}

struct mpii_ccb *
mpii_get_ccb(struct mpii_softc *sc)
{
	struct mpii_ccb		*ccb;

	ccb = TAILQ_FIRST(&sc->sc_ccb_free);
	if (ccb == NULL) {
		DNPRINTF(MPII_D_CCB, "%s: mpii_get_ccb == NULL\n", DEVNAME(sc));
		return (NULL);
	}

	TAILQ_REMOVE(&sc->sc_ccb_free, ccb, ccb_link);

	ccb->ccb_state = MPII_CCB_READY;

	DNPRINTF(MPII_D_CCB, "%s: mpii_get_ccb %#x\n", DEVNAME(sc), ccb);

	return (ccb);
}

int
mpii_alloc_replies(struct mpii_softc *sc)
{
	DNPRINTF(MPII_D_MISC, "%s: mpii_alloc_replies\n", DEVNAME(sc));

	sc->sc_rcbs = malloc(sc->sc_num_reply_frames * sizeof(struct mpii_rcb),
	    M_DEVBUF, M_NOWAIT | M_CANFAIL);
	if (sc->sc_rcbs == NULL)
		return (1);

	sc->sc_replies = mpii_dmamem_alloc(sc, 
	    MPII_REPLY_SIZE * sc->sc_num_reply_frames);
	if (sc->sc_replies == NULL) {
		free(sc->sc_rcbs, M_DEVBUF);
		return (1);
	}

	return (0);
}

void
mpii_push_replies(struct mpii_softc *sc)
{
	struct mpii_rcb		*rcb;
	char			*kva = MPII_DMA_KVA(sc->sc_replies);
	int			i;

	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_replies),
	    0, MPII_REPLY_SIZE * sc->sc_num_reply_frames, BUS_DMASYNC_PREREAD);

	for (i = 0; i < sc->sc_num_reply_frames; i++) {
		rcb = &sc->sc_rcbs[i];

		rcb->rcb_reply = kva + MPII_REPLY_SIZE * i;
		rcb->rcb_reply_dva = (u_int32_t)MPII_DMA_DVA(sc->sc_replies) +
		    MPII_REPLY_SIZE * i;
		mpii_push_reply(sc, rcb->rcb_reply_dva);
	}
}

void 
mpii_start(struct mpii_softc *sc, struct mpii_ccb *ccb)
{	
	struct mpii_request_header	*rhp;
	struct mpii_request_descriptor	descriptor;
	u_int32_t			*rdp = (uint32_t *)&descriptor;

	DNPRINTF(MPII_D_RW, "%s: mpii_start %#x\n", DEVNAME(sc),
	    ccb->ccb_cmd_dva);

	rhp = ccb->ccb_cmd;

	bzero(&descriptor, sizeof(struct mpii_request_descriptor));

	switch (rhp->function) {
	case	MPII_FUNCTION_SCSI_IO_REQUEST:
			descriptor.request_flags = 
			    MPII_REQ_DESCRIPTOR_FLAGS_SCSI_IO;
			/* device handle */
			descriptor.type_dependent = 
			    htole16(ccb->ccb_dev_handle);
			break;
	case	MPII_FUNCTION_SCSI_TASK_MGMT:
			descriptor.request_flags =
			    MPII_REQ_DESCRIPTOR_FLAGS_HIGH_PRIORITY;
			break;
	default:
			descriptor.request_flags = 
			    MPII_REQ_DESCRIPTOR_FLAGS_DEFAULT;
	}

	descriptor.vf_id = sc->sc_vf_id;
	descriptor.smid = htole16(ccb->ccb_smid);

	bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_requests),
	    ccb->ccb_offset, MPII_REQUEST_SIZE,
	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);

	ccb->ccb_state = MPII_CCB_QUEUED;

	DNPRINTF(MPII_D_RW, "%s:   MPII_REQ_DESC_POST_LOW (0x%08x) write "
	    "0x%08x\n", DEVNAME(sc), MPII_REQ_DESC_POST_LOW, *rdp);

	DNPRINTF(MPII_D_RW, "%s:   MPII_REQ_DESC_POST_HIGH (0x%08x) write "
	    "0x%08x\n", DEVNAME(sc), MPII_REQ_DESC_POST_HIGH, *(rdp+1)); 

	mpii_write(sc, MPII_REQ_DESC_POST_LOW, htole32(*rdp));
	mpii_write(sc, MPII_REQ_DESC_POST_HIGH, htole32(*(rdp+1)));
}

int
mpii_complete(struct mpii_softc *sc, struct mpii_ccb *ccb, int timeout)
{
	struct mpii_reply_descriptor	*rdp;
	u_int8_t			reply_flags;
	int				smid = -1;

	DNPRINTF(MPII_D_INTR, "%s: mpii_complete timeout %d\n", DEVNAME(sc),
	    timeout); 
	
	do {
		/* avoid excessive polling */
		if (!mpii_reply_waiting(sc)) {
			if (timeout-- == 0)
				return (1);

			delay(1000);
			continue;
		}

		bus_dmamap_sync(sc->sc_dmat, MPII_DMA_MAP(sc->sc_reply_postq),
		    0, 8 * sc->sc_reply_post_qdepth, BUS_DMASYNC_POSTWRITE);

		rdp = &sc->sc_reply_postq_kva[sc->sc_reply_post_host_index];
		reply_flags = (u_int8_t)(rdp->reply_flags) & 
		    MPII_REPLY_DESCR_FLAGS_TYPE_MASK;
		if ((reply_flags == MPII_REPLY_DESCR_FLAGS_UNUSED))
			continue;
		if (rdp->type_dependent2 == 0xffffffff) {
			/*
			 * ioc is still writing to the reply post queue
			 * race condition - bail!
			 */
			printf("%s: ioc is writing a reply\n", DEVNAME(sc));
			continue;
		}
		smid = mpii_reply(sc, rdp);

		DNPRINTF(MPII_D_INTR, "%s: mpii_complete call to mpii_reply"
		    "returned: %d\n", DEVNAME(sc), smid);

		sc->sc_reply_post_host_index =
		    (sc->sc_reply_post_host_index + 1) %
		    sc->sc_reply_post_qdepth;
	} while (ccb->ccb_smid != smid);

	mpii_write_reply_post(sc, sc->sc_reply_post_host_index);

	return (0);
}

int
mpii_alloc_queues(struct mpii_softc *sc)
{
	u_int32_t		*kva;
	u_int64_t		*kva64;
	int			i; 
	
	DNPRINTF(MPII_D_MISC, "%s: mpii_alloc_queues\n", DEVNAME(sc));

	sc->sc_reply_freeq = mpii_dmamem_alloc(sc,
	    sc->sc_reply_free_qdepth * 4);
	if (sc->sc_reply_freeq == NULL)
		return (1);
	
	kva = MPII_DMA_KVA(sc->sc_reply_freeq);
	for (i = 0; i < sc->sc_num_reply_frames; i++) {
		kva[i] = (u_int32_t)MPII_DMA_DVA(sc->sc_replies) +
		    MPII_REPLY_SIZE * i;

		DNPRINTF(MPII_D_MISC, "%s:   %d:  0x%08x = 0x%08x\n",
		    DEVNAME(sc), i,
		    &kva[i], (u_int32_t)MPII_DMA_DVA(sc->sc_replies) +
		    MPII_REPLY_SIZE * i);
	}

	sc->sc_reply_postq = 
	    mpii_dmamem_alloc(sc, sc->sc_reply_post_qdepth * 8);
	if (sc->sc_reply_postq == NULL) 
		goto free_reply_freeq;
	sc->sc_reply_postq_kva = MPII_DMA_KVA(sc->sc_reply_postq);
	
	DNPRINTF(MPII_D_MISC, "%s:  populating reply post descriptor queue\n", 
	    DEVNAME(sc));
	kva64 = (u_int64_t *)MPII_DMA_KVA(sc->sc_reply_postq);
	for (i = 0; i < sc->sc_reply_post_qdepth; i++) {
		kva64[i] = 0xffffffffffffffffllu;
		DNPRINTF(MPII_D_MISC, "%s:    %d:  0x%08x = 0x%lx\n", 
		    DEVNAME(sc), i, &kva64[i], kva64[i]); 
	}

	return (0);

free_reply_freeq:

	mpii_dmamem_free(sc, sc->sc_reply_freeq);
	return (1);
}

void
mpii_init_queues(struct mpii_softc *sc)
{
	DNPRINTF(MPII_D_MISC, "%s:  mpii_init_queues\n", DEVNAME(sc));

	sc->sc_reply_free_host_index = sc->sc_reply_free_qdepth - 1;
	sc->sc_reply_post_host_index = 0;
	mpii_write_reply_free(sc, sc->sc_reply_free_host_index);
	mpii_write_reply_post(sc, sc->sc_reply_post_host_index);
}

int
mpii_poll(struct mpii_softc *sc, struct mpii_ccb *ccb, int timeout)
{
	int			error;
	int			s;

	DNPRINTF(MPII_D_CMD, "%s: mpii_poll\n", DEVNAME(sc));

	DNPRINTF(MPII_D_CMD, "   ccb->ccb_cmd: 0x%08x\n", DEVNAME(sc), ccb->ccb_cmd);
	s = splbio();
	mpii_start(sc, ccb);
	error = mpii_complete(sc, ccb, timeout);
	splx(s);

	return (error);
}

int
mpii_scsi_cmd(struct scsi_xfer *xs)
{
	struct scsi_link	*link = xs->sc_link;
	struct mpii_softc	*sc = link->adapter_softc;
	struct mpii_ccb		*ccb;
	struct mpii_ccb_bundle	*mcb;
	struct mpii_msg_scsi_io	*io;
	int			s;

	DNPRINTF(MPII_D_CMD, "%s: mpii_scsi_cmd\n", DEVNAME(sc));

	if (xs->cmdlen > MPII_CDB_LEN) {
		DNPRINTF(MPII_D_CMD, "%s: CBD too big %d\n",
		    DEVNAME(sc), xs->cmdlen);
		bzero(&xs->sense, sizeof(xs->sense));
		xs->sense.error_code = SSD_ERRCODE_VALID | 0x70;
		xs->sense.flags = SKEY_ILLEGAL_REQUEST;
		xs->sense.add_sense_code = 0x20;
		xs->error = XS_SENSE;
		s = splbio();
		scsi_done(xs);
		splx(s);
		return (COMPLETE);
	}

	s = splbio();
	ccb = mpii_get_ccb(sc);
	splx(s);
	if (ccb == NULL)
		return (NO_CCB);
	
	DNPRINTF(MPII_D_CMD, "%s: ccb_smid: %d xs->flags: 0x%x\n",
	    DEVNAME(sc), ccb->ccb_smid, xs->flags);

	ccb->ccb_xs = xs;
	ccb->ccb_done = mpii_scsi_cmd_done;

	mcb = ccb->ccb_cmd;
	io = &mcb->mcb_io;

	io->function = MPII_FUNCTION_SCSI_IO_REQUEST;
	io->sense_buffer_length = sizeof(xs->sense);
	io->sgl_offset0 = 24; /* XXX fix this */
	io->io_flags = htole16(xs->cmdlen);
	ccb->ccb_dev_handle = io->dev_handle =
	    htole16(sc->sc_mpii_dev[link->target]->dev_handle);
	io->lun[0] = htobe16(link->lun);

	switch (xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT)) {
	case SCSI_DATA_IN:
		io->direction = MPII_SCSIIO_DIR_READ;
		break;
	case SCSI_DATA_OUT:
		io->direction = MPII_SCSIIO_DIR_WRITE;
		break;
	default:
		io->direction = MPII_SCSIIO_DIR_NONE;
		break;
	}

	io->tagging = MPII_SCSIIO_ATTR_SIMPLE_Q;

	bcopy(xs->cmd, io->cdb, xs->cmdlen);

	io->data_length = htole32(xs->datalen);

	io->sense_buffer_low_address = htole32(ccb->ccb_cmd_dva +
	    ((u_int8_t *)&mcb->mcb_sense - (u_int8_t *)mcb));

	if (mpii_load_xs(ccb) != 0) {
		xs->error = XS_DRIVER_STUFFUP;
		s = splbio();
		mpii_put_ccb(sc, ccb);
		scsi_done(xs);
		splx(s);
		return (COMPLETE);
	}

	DNPRINTF(MPII_D_CMD, "%s:  sizeof(mpii_msg_scsi_io): %d "
	    "sizeof(mpii_ccb_bundle): %d sge offset: 0x%02x\n",
	    DEVNAME(sc), sizeof(struct mpii_msg_scsi_io),
	    sizeof(struct mpii_ccb_bundle), 
	    (u_int8_t *)&mcb->mcb_sgl[0] - (u_int8_t *)mcb);
	
	DNPRINTF(MPII_D_CMD, "%s   sgl[0]: 0x%04x 0%04x 0x%04x\n",
	    DEVNAME(sc), mcb->mcb_sgl[0].sg_hdr, mcb->mcb_sgl[0].sg_lo_addr,
	    mcb->mcb_sgl[0].sg_hi_addr);

	DNPRINTF(MPII_D_CMD, "%s:  Offset0: 0x%02x\n", DEVNAME(sc),
	    io->sgl_offset0); 

	if (xs->flags & SCSI_POLL) {
		if (mpii_poll(sc, ccb, xs->timeout) != 0) {
			xs->error = XS_DRIVER_STUFFUP;
			s = splbio();
			scsi_done(xs);
			splx(s);
		}
		return (COMPLETE);
	}

	timeout_set(&xs->stimeout, mpii_timeout_xs, ccb);
	timeout_add(&xs->stimeout, (xs->timeout * 1000) / hz);

	DNPRINTF(MPII_D_CMD, "%s:    mpii_scsi_cmd(): opcode: %02x datalen: %d "
	    "req_sense_len: %d\n", DEVNAME(sc), xs->cmd->opcode,
	    xs->datalen, xs->req_sense_length);

	s = splbio();
	mpii_start(sc, ccb);
	splx(s);
	return (SUCCESSFULLY_QUEUED);
}

void
mpii_scsi_cmd_done(struct mpii_ccb *ccb)
{
	struct mpii_msg_scsi_io_error	*sie;
	struct mpii_softc	*sc = ccb->ccb_sc;
	struct scsi_xfer	*xs = ccb->ccb_xs;
	struct mpii_ccb_bundle	*mcb = ccb->ccb_cmd;
	bus_dmamap_t		dmap = ccb->ccb_dmamap;

	if (xs->datalen != 0) {
		bus_dmamap_sync(sc->sc_dmat, dmap, 0, dmap->dm_mapsize,
		    (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_POSTREAD :
		    BUS_DMASYNC_POSTWRITE);

		bus_dmamap_unload(sc->sc_dmat, dmap);
	}

	if (!(xs->flags & SCSI_POLL))
		timeout_del(&xs->stimeout);
	xs->error = XS_NOERROR;
	xs->resid = 0;

	if (ccb->ccb_rcb == NULL) {
		/* no scsi error, we're ok so drop out early */
		xs->status = SCSI_OK;
		mpii_put_ccb(sc, ccb);
		scsi_done(xs);
		return;
	}

	sie = ccb->ccb_rcb->rcb_reply;

	DNPRINTF(MPII_D_CMD, "%s: mpii_scsi_cmd_done xs cmd: 0x%02x len: %d "
	    "flags 0x%x\n", DEVNAME(sc), xs->cmd->opcode, xs->datalen,
	    xs->flags);
	DNPRINTF(MPII_D_CMD, "%s:  dev_handle: %d msg_length: %d "
	    "function: 0x%02x\n", DEVNAME(sc), letoh16(sie->dev_handle), 
	    sie->msg_length, sie->function);
	DNPRINTF(MPII_D_CMD, "%s:  vp_id: 0x%02x vf_id: 0x%02x\n", DEVNAME(sc),
	    sie->vp_id, sie->vf_id);
	DNPRINTF(MPII_D_CMD, "%s:  scsi_status: 0x%02x scsi_state: 0x%02x "
	    "ioc_status: 0x%04x\n", DEVNAME(sc), sie->scsi_status,
	    sie->scsi_state, letoh16(sie->ioc_status));
	DNPRINTF(MPII_D_CMD, "%s:  ioc_loginfo: 0x%08x\n", DEVNAME(sc),
	    letoh32(sie->ioc_loginfo));
	DNPRINTF(MPII_D_CMD, "%s:  transfer_count: %d\n", DEVNAME(sc),
	    letoh32(sie->transfer_count));
	DNPRINTF(MPII_D_CMD, "%s:  sense_count: %d\n", DEVNAME(sc),
	    letoh32(sie->sense_count));
	DNPRINTF(MPII_D_CMD, "%s:  response_info: 0x%08x\n", DEVNAME(sc),
	    letoh32(sie->response_info));
	DNPRINTF(MPII_D_CMD, "%s:  task_tag: 0x%04x\n", DEVNAME(sc),
	    letoh16(sie->task_tag));
	DNPRINTF(MPII_D_CMD, "%s:  bidirectional_transfer_count: 0x%08x\n",
	    DEVNAME(sc), letoh32(sie->bidirectional_transfer_count));
	
	xs->status = sie->scsi_status;
	switch (letoh16(sie->ioc_status)) {
	case MPII_IOCSTATUS_SCSI_DATA_UNDERRUN:
		xs->resid = xs->datalen - letoh32(sie->transfer_count);
		if (sie->scsi_state & MPII_SCSIIO_ERR_STATE_NO_SCSI_STATUS) {
			xs->error = XS_DRIVER_STUFFUP;
			break;
		}
		/* FALLTHROUGH */
	case MPII_IOCSTATUS_SUCCESS:
	case MPII_IOCSTATUS_SCSI_RECOVERED_ERROR:
		switch (xs->status) {
		case SCSI_OK:
			xs->resid = 0;
			break;

		case SCSI_CHECK:
			xs->error = XS_SENSE;
			break;

		case SCSI_BUSY:
		case SCSI_QUEUE_FULL:
			xs->error = XS_BUSY;
			break;

		default:
			xs->error = XS_DRIVER_STUFFUP;
			break;
		}
		break;

	case MPII_IOCSTATUS_BUSY:
	case MPII_IOCSTATUS_INSUFFICIENT_RESOURCES:
	case MPII_IOCSTATUS_SCSI_IOC_TERMINATED:
	case MPII_IOCSTATUS_SCSI_TASK_TERMINATED:
		xs->error = XS_BUSY;
		break;

	case MPII_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
	case MPII_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
		xs->error = XS_SELTIMEOUT;
		break;

	default:
		xs->error = XS_DRIVER_STUFFUP;
		break;
	}

	if (sie->scsi_state & MPII_SCSIIO_ERR_STATE_AUTOSENSE_VALID)
		bcopy(&mcb->mcb_sense, &xs->sense, sizeof(xs->sense));

	DNPRINTF(MPII_D_CMD, "%s:  xs err: %d status: %#x\n", DEVNAME(sc),
	    xs->error, xs->status);

	mpii_push_reply(sc, ccb->ccb_rcb->rcb_reply_dva);
	mpii_put_ccb(sc, ccb);
	scsi_done(xs);
}

int
mpii_scsi_ioctl(struct scsi_link *link, u_long cmd, caddr_t addr, int flag,
    struct proc *p)
{
	struct mpii_softc	*sc = (struct mpii_softc *)link->adapter_softc;

	DNPRINTF(MPII_D_IOCTL, "%s: mpii_scsi_ioctl\n", DEVNAME(sc));

	if (sc->sc_ioctl)
		return (sc->sc_ioctl(link->adapter_softc, cmd, addr));
	else
		return (ENOTTY);
}

#if NBIO > 0
int
mpii_ioctl(struct device *dev, u_long cmd, caddr_t addr)
{
	struct mpii_softc	*sc = (struct mpii_softc *)dev;
	int			error = 0;

	DNPRINTF(MPII_D_IOCTL, "%s: mpii_ioctl ", DEVNAME(sc));

	switch (cmd) {
	case BIOCINQ:
		DNPRINTF(MPII_D_IOCTL, "inq\n");
		error = mpii_ioctl_inq(sc, (struct bioc_inq *)addr);
		break;

	case BIOCVOL:
		DNPRINTF(MPII_D_IOCTL, "vol\n");
		error = mpii_ioctl_vol(sc, (struct bioc_vol *)addr);
		break;

	case BIOCDISK:
		DNPRINTF(MPII_D_IOCTL, "disk\n");
		error = mpii_ioctl_disk(sc, (struct bioc_disk *)addr);
		break;

	default:
		DNPRINTF(MPII_D_IOCTL, " invalid ioctl\n");
		error = EINVAL;
	}

	return (error);
}

int
mpii_ioctl_inq(struct mpii_softc *sc, struct bioc_inq *bi)
{
	DNPRINTF(MPII_D_IOCTL, "%s: mpii_ioctl_inq\n", DEVNAME(sc));

	strlcpy(bi->bi_dev, DEVNAME(sc), sizeof(bi->bi_dev));

	bi->bi_nodisk = sc->sc_pd_count;
	bi->bi_novol = sc->sc_vd_count;

	return (0);
}

int
mpii_ioctl_vol(struct mpii_softc *sc, struct bioc_vol *bv)
{
	struct mpii_cfg_raid_vol_pg0	*vpg;
	struct mpii_cfg_hdr		hdr;
	struct scsi_link		*lnk;
	struct device			*dev;
	size_t				pagelen;
	u_int16_t			volh;
	int				rv, hcnt = 0;

	DNPRINTF(MPII_D_IOCTL, "%s: mpii_ioctl_vol %d\n",
	    DEVNAME(sc), bv->bv_volid);

	if (bv->bv_volid > sc->sc_vd_count)
		return (ENODEV);

	volh = sc->sc_mpii_dev[sc->sc_vd_id_low + bv->bv_volid]->dev_handle;

	if (mpii_req_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_RAID_VOL, 0,
	    MPII_CFG_RAID_VOL_ADDR_HANDLE | volh, 0, &hdr) != 0) {
		printf("%s: unable to fetch header for raid volume page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	pagelen = hdr.page_length * 4;
	vpg = malloc(pagelen, M_TEMP, M_WAITOK | M_CANFAIL | M_ZERO);
	if (vpg == NULL) {
		printf("%s: unable to allocate space for raid "
		    "volume page 0\n", DEVNAME(sc));
		return (ENOMEM);
	}

	if (mpii_req_cfg_page(sc, MPII_CFG_RAID_VOL_ADDR_HANDLE | volh, 0,
	    &hdr, 1, vpg, pagelen) != 0) {
		printf("%s: unable to fetch raid volume page 0\n",
		    DEVNAME(sc));
		free(vpg, M_TEMP);
		return (EINVAL);
	}

	bv->bv_percent = -1;

	switch (vpg->volume_state) {
	case MPII_CFG_RAID_VOL_0_STATE_ONLINE:
		switch (letoh32(vpg->volume_status)) {
		case MPII_CFG_RAID_VOL_0_STATUS_SCRUB:
			bv->bv_status = BIOC_SVSCRUB;
			break;
		case MPII_CFG_RAID_VOL_0_STATUS_RESYNC:
			bv->bv_status = BIOC_SVREBUILD;
			break;
		default:
			bv->bv_status = BIOC_SVONLINE;
			break;
		}
		break;
	case MPII_CFG_RAID_VOL_0_STATE_OPTIMAL:
		bv->bv_status = BIOC_SVONLINE;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_DEGRADED:
		bv->bv_status = BIOC_SVDEGRADED;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_FAILED:
		bv->bv_status = BIOC_SVOFFLINE;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_INITIALIZING:
		bv->bv_status = BIOC_SVBUILDING;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_MISSING:
		bv->bv_status = BIOC_SVINVALID;
		break;
	}

	switch (vpg->volume_type) {
	case MPII_CFG_RAID_VOL_0_TYPE_RAID0:
		bv->bv_level = 0;
		break;
	case MPII_CFG_RAID_VOL_0_TYPE_RAID1:
		bv->bv_level = 1;
		break;
	case MPII_CFG_RAID_VOL_0_TYPE_RAID1E:
	case MPII_CFG_RAID_VOL_0_TYPE_RAID10:
		bv->bv_level = 10;
		break;
	default:
		bv->bv_level = -1;
		break;
	}

	if ((rv = mpii_bio_hs(sc, NULL, 0, vpg->hot_spare_pool, &hcnt)) != 0) {
		free(vpg, M_TEMP);
		return (rv);
	}

	bv->bv_nodisk = vpg->num_phys_disks + hcnt;

	bv->bv_size = letoh64(vpg->max_lba) * letoh16(vpg->block_size);

	lnk = sc->sc_scsibus->sc_link[bv->bv_volid][0];
	if (lnk != NULL) {
		dev = lnk->device_softc;
		strlcpy(bv->bv_dev, dev->dv_xname, sizeof(bv->bv_dev));
	}

	free(vpg, M_TEMP);
	return (0);
}

int
mpii_ioctl_disk(struct mpii_softc *sc, struct bioc_disk *bd)
{
	struct mpii_cfg_raid_vol_pg0		*vpg;
	struct mpii_cfg_raid_vol_pg0_physdisk	*pd;
	struct mpii_cfg_hdr			hdr;
	size_t					pagelen;
	u_int16_t				volh;
	u_int8_t				dn;

	DNPRINTF(MPII_D_IOCTL, "%s: mpii_ioctl_disk %d/%d\n",
	    DEVNAME(sc), bd->bd_volid, bd->bd_diskid);

	if (bd->bd_volid > sc->sc_vd_count)
		return (ENODEV);

	volh = sc->sc_mpii_dev[sc->sc_vd_id_low + bd->bd_volid]->dev_handle;

	if (mpii_req_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_RAID_VOL, 0,
	    MPII_CFG_RAID_VOL_ADDR_HANDLE | volh, 0, &hdr) != 0) {
		printf("%s: unable to fetch header for raid volume page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	pagelen = hdr.page_length * 4;
	vpg = malloc(pagelen, M_TEMP, M_WAITOK | M_CANFAIL | M_ZERO);
	if (vpg == NULL) {
		printf("%s: unable to allocate space for raid "
		    "volume page 0\n", DEVNAME(sc));
		return (ENOMEM);
	}

	if (mpii_req_cfg_page(sc, MPII_CFG_RAID_VOL_ADDR_HANDLE | volh, 0,
	    &hdr, 1, vpg, pagelen) != 0) {
		printf("%s: unable to fetch raid volume page 0\n",
		    DEVNAME(sc));
		free(vpg, M_TEMP);
		return (EINVAL);
	}

	if (bd->bd_diskid >= vpg->num_phys_disks) {
		u_int8_t	hsmap = vpg->hot_spare_pool;

		free(vpg, M_TEMP);
		return (mpii_bio_hs(sc, bd, vpg->num_phys_disks, hsmap, NULL));
	}

	pd = (struct mpii_cfg_raid_vol_pg0_physdisk *)(vpg + 1) +
	    bd->bd_diskid;
	dn = pd->phys_disk_num;

	free(vpg, M_TEMP);
	return (mpii_bio_disk(sc, bd, dn));
}

int
mpii_bio_hs(struct mpii_softc *sc, struct bioc_disk *bd, int nvdsk,
     u_int8_t hsmap, int *hscnt)
{
	struct mpii_cfg_raid_config_pg0	*cpg;
	struct mpii_raid_config_element	*el;
	struct mpii_ecfg_hdr		ehdr;
	size_t				pagelen;
	int				i, nhs = 0;

	if (bd)
		DNPRINTF(MPII_D_IOCTL, "%s: mpii_bio_hs %d\n", DEVNAME(sc),
		    bd->bd_diskid - nvdsk);
	else
		DNPRINTF(MPII_D_IOCTL, "%s: mpii_bio_hs\n", DEVNAME(sc));

	if (mpii_req_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_RAID_CONFIG,
	    0, MPII_CFG_RAID_CONFIG_ACTIVE_CONFIG, MPII_PG_EXTENDED,
	    &ehdr) != 0) {
		printf("%s: unable to fetch header for raid config page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	pagelen = letoh16(ehdr.ext_page_length) * 4;
	cpg = malloc(pagelen, M_TEMP, M_WAITOK | M_CANFAIL | M_ZERO);
	if (cpg == NULL) {
		printf("%s: unable to allocate space for raid config page 0\n",
		    DEVNAME(sc));
		return (ENOMEM);
	}

	if (mpii_req_cfg_page(sc, MPII_CFG_RAID_CONFIG_ACTIVE_CONFIG,
	    MPII_PG_EXTENDED, &ehdr, 1, cpg, pagelen) != 0) {
		printf("%s: unable to fetch raid config page 0\n",
		    DEVNAME(sc));
		free(cpg, M_TEMP);
		return (EINVAL);
	}

	el = (struct mpii_raid_config_element *)(cpg + 1);
	for (i = 0; i < cpg->num_elements; i++, el++) {
		if (ISSET(letoh16(el->element_flags),
		    MPII_RAID_CONFIG_ELEMENT_FLAG_HSP_PHYS_DISK) &&
		    el->hot_spare_pool == hsmap) {
			/*
			 * diskid comparison is based on the idea that all
			 * disks are counted by the bio(4) in sequence, thus
			 * substracting the number of disks in the volume
			 * from the diskid yields us a "relative" hotspare
			 * number, which is good enough for us.
			 */
			if (bd != NULL && bd->bd_diskid == nhs + nvdsk) {
				free(cpg, M_TEMP);
				return (mpii_bio_disk(sc, bd,
				    el->phys_disk_num));
			}
			nhs++;
		}
	}

	if (hscnt)
		*hscnt = nhs;

	free(cpg, M_TEMP);
	return (0);
}

int
mpii_bio_disk(struct mpii_softc *sc, struct bioc_disk *bd, u_int8_t dn)
{
	struct mpii_cfg_raid_physdisk_pg0	ppg;
	struct mpii_cfg_hdr			hdr;
	int					len;

	DNPRINTF(MPII_D_IOCTL, "%s: mpii_bio_disk %d\n",
	    DEVNAME(sc), bd->bd_diskid);

	if (bd->bd_volid > sc->sc_vd_count)
		return (ENODEV);

	hdr.page_version = 0;
	hdr.page_length = sizeof(ppg) / 4;
	hdr.page_number = 0;
	hdr.page_type = MPII_CONFIG_REQ_PAGE_TYPE_RAID_PD;

	if (mpii_req_cfg_page(sc, MPII_CFG_RAID_PHYS_DISK_ADDR_NUMBER | dn, 0,
	    &hdr, 1, &ppg, sizeof(ppg)) != 0) {
		printf("%s: unable to fetch raid drive page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	if (mpii_bio_getphy(sc, letoh16(ppg.dev_handle), &bd->bd_target))
		bd->bd_target = letoh16(ppg.phys_disk_num);

	switch (ppg.phys_disk_state) {
	case MPII_CFG_RAID_PHYDISK_0_STATE_ONLINE:
	case MPII_CFG_RAID_PHYDISK_0_STATE_OPTIMAL:
		bd->bd_status = BIOC_SDONLINE;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_OFFLINE:
		if (ppg.offline_reason ==
		    MPII_CFG_RAID_PHYDISK_0_OFFLINE_FAILED ||
		    ppg.offline_reason ==
		    MPII_CFG_RAID_PHYDISK_0_OFFLINE_FAILEDREQ)
			bd->bd_status = BIOC_SDFAILED;
		else
			bd->bd_status = BIOC_SDOFFLINE;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_DEGRADED:
		bd->bd_status = BIOC_SDFAILED;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_REBUILDING:
		bd->bd_status = BIOC_SDREBUILD;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_HOTSPARE:
		bd->bd_status = BIOC_SDHOTSPARE;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_NOTCONFIGURED:
		bd->bd_status = BIOC_SDUNUSED;
		break;
	case MPII_CFG_RAID_PHYDISK_0_STATE_NOTCOMPATIBLE:
		bd->bd_status = BIOC_SDINVALID;
		break;
	}

	bd->bd_size = letoh64(ppg.dev_max_lba) * letoh16(ppg.block_size);

	scsi_strvis(bd->bd_vendor, ppg.vendor_id, sizeof(ppg.vendor_id));
	len = strlen(bd->bd_vendor);
	bd->bd_vendor[len] = ' ';
	scsi_strvis(&bd->bd_vendor[len + 1], ppg.product_id,
	    sizeof(ppg.product_id));
	scsi_strvis(bd->bd_serial, ppg.serial, sizeof(ppg.serial));

	return (0);
}

int
mpii_bio_getphy(struct mpii_softc *sc, u_int16_t dh, u_int16_t *port)
{
	struct mpii_cfg_sas_dev_pg0	spg;
	struct mpii_ecfg_hdr		ehdr;

	if (!port)
		return (EINVAL);

	bzero(&ehdr, sizeof(ehdr));
	ehdr.page_type = MPII_CONFIG_REQ_PAGE_TYPE_EXTENDED;
	ehdr.ext_page_length = htole16(sizeof(spg) / 4);
	ehdr.ext_page_type = MPII_CONFIG_REQ_PAGE_TYPE_SAS_DEVICE;

	if (mpii_req_cfg_page(sc, MPII_CFG_SAS_DEV_ADDR_HANDLE | dh,
	    MPII_PG_EXTENDED, &ehdr, 1, &spg, sizeof(spg)) != 0) {
		printf("%s: unable to fetch sas device page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	*port = spg.phy_num;

	return (0);
}

#ifndef SMALL_KERNEL
int
mpii_bio_volstate(struct mpii_softc *sc, struct bioc_vol *bv)
{
	struct mpii_cfg_raid_vol_pg0	*vpg;
	struct mpii_cfg_hdr		hdr;
	size_t				pagelen;
	u_int16_t			volh;

	if (bv->bv_volid > sc->sc_vd_count)
		return (ENODEV);

	volh = sc->sc_mpii_dev[sc->sc_vd_id_low + bv->bv_volid]->dev_handle;

	if (mpii_cfg_header(sc, MPII_CONFIG_REQ_PAGE_TYPE_RAID_VOL, 0,
	    MPII_CFG_RAID_VOL_ADDR_HANDLE | volh, &hdr) != 0) {
		printf("%s: unable to fetch header for raid volume page 0\n",
		    DEVNAME(sc));
		return (EINVAL);
	}

	pagelen = hdr.page_length * 4;
	vpg = malloc(pagelen, M_TEMP, M_NOWAIT | M_CANFAIL | M_ZERO);
	if (vpg == NULL) {
		printf("%s: unable to allocate space for raid "
		    "volume page 0\n", DEVNAME(sc));
		return (ENOMEM);
	}

	if (mpii_cfg_page(sc, MPII_CFG_RAID_VOL_ADDR_HANDLE | volh,
	    &hdr, 1, vpg, pagelen) != 0) {
		printf("%s: unable to fetch raid volume page 0\n",
		    DEVNAME(sc));
		free(vpg, M_TEMP);
		return (EINVAL);
	}

	switch (vpg->volume_state) {
	case MPII_CFG_RAID_VOL_0_STATE_ONLINE:
		switch (letoh32(vpg->volume_status)) {
		case MPII_CFG_RAID_VOL_0_STATUS_SCRUB:
			bv->bv_status = BIOC_SVSCRUB;
			break;
		case MPII_CFG_RAID_VOL_0_STATUS_RESYNC:
			bv->bv_status = BIOC_SVREBUILD;
			break;
		default:
			bv->bv_status = BIOC_SVONLINE;
			break;
		}
		break;
	case MPII_CFG_RAID_VOL_0_STATE_OPTIMAL:
		bv->bv_status = BIOC_SVONLINE;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_DEGRADED:
		bv->bv_status = BIOC_SVDEGRADED;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_FAILED:
		bv->bv_status = BIOC_SVOFFLINE;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_INITIALIZING:
		bv->bv_status = BIOC_SVBUILDING;
		break;
	case MPII_CFG_RAID_VOL_0_STATE_MISSING:
		bv->bv_status = BIOC_SVINVALID;
		break;
	}

	free(vpg, M_TEMP);
	return (0);
}

int
mpii_create_sensors(struct mpii_softc *sc)
{
	struct scsibus_softc	*ssc = sc->sc_scsibus;
	struct device		*dev;
	int			i;

	sc->sc_sensors = malloc(sizeof(struct ksensor) * sc->sc_vd_count,
	    M_DEVBUF, M_WAITOK | M_ZERO);
	if (sc->sc_sensors == NULL)
		return (1);

	strlcpy(sc->sc_sensordev.xname, DEVNAME(sc),
	    sizeof(sc->sc_sensordev.xname));

	for (i = 0; i < sc->sc_vd_count; i++) {
		if (ssc->sc_link[i][0] == NULL)
			goto bad;

		dev = ssc->sc_link[i][0]->device_softc;

		sc->sc_sensors[i].type = SENSOR_DRIVE;
		sc->sc_sensors[i].status = SENSOR_S_UNKNOWN;

		strlcpy(sc->sc_sensors[i].desc, dev->dv_xname,
		    sizeof(sc->sc_sensors[i].desc));

		sensor_attach(&sc->sc_sensordev, &sc->sc_sensors[i]);
	}

	if (sensor_task_register(sc, mpii_refresh_sensors, 10) == NULL)
		goto bad;

	sensordev_install(&sc->sc_sensordev);

	return (0);

bad:
	free(sc->sc_sensors, M_DEVBUF);

	return (1);
}

void
mpii_refresh_sensors(void *arg)
{
	struct mpii_softc	*sc = arg;
	struct bioc_vol		bv;
	int			i;

	for (i = 0; i < sc->sc_vd_count; i++) {
		bzero(&bv, sizeof(bv));
		bv.bv_volid = i;
		if (mpii_bio_volstate(sc, &bv))
			return;

		switch(bv.bv_status) {
		case BIOC_SVOFFLINE:
			sc->sc_sensors[i].value = SENSOR_DRIVE_FAIL;
			sc->sc_sensors[i].status = SENSOR_S_CRIT;
			break;

		case BIOC_SVDEGRADED:
			sc->sc_sensors[i].value = SENSOR_DRIVE_PFAIL;
			sc->sc_sensors[i].status = SENSOR_S_WARN;
			break;

		case BIOC_SVSCRUB:
		case BIOC_SVONLINE:
			sc->sc_sensors[i].value = SENSOR_DRIVE_ONLINE;
			sc->sc_sensors[i].status = SENSOR_S_OK;
			break;

		case BIOC_SVINVALID:
			/* FALLTRHOUGH */
		default:
			sc->sc_sensors[i].value = 0; /* unknown */
			sc->sc_sensors[i].status = SENSOR_S_UNKNOWN;
		}
	}
}
#endif /* SMALL_KERNEL */
#endif /* NBIO > 0 */