mptctl.c 86.3 KB
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
/*
 *  linux/drivers/message/fusion/mptctl.c
 *      mpt Ioctl driver.
 *      For use with LSI PCI chip/adapters
 *      running LSI Fusion MPT (Message Passing Technology) firmware.
 *
 *  Copyright (c) 1999-2008 LSI Corporation
 *  (mailto:DL-MPTFusionLinux@lsi.com)
 *
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; version 2 of the License.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    NO WARRANTY
    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
    solely responsible for determining the appropriateness of using and
    distributing the Program and assumes all risks associated with its
    exercise of rights under this Agreement, including but not limited to
    the risks and costs of program errors, damage to or loss of data,
    programs or equipment, and unavailability or interruption of operations.

    DISCLAIMER OF LIABILITY
    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/delay.h>	/* for mdelay */
#include <linux/miscdevice.h>
#include <linux/mutex.h>
#include <linux/compat.h>

#include <asm/io.h>
#include <asm/uaccess.h>

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

#define COPYRIGHT	"Copyright (c) 1999-2008 LSI Corporation"
#define MODULEAUTHOR	"LSI Corporation"
#include "mptbase.h"
#include "mptctl.h"

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#define my_NAME		"Fusion MPT misc device (ioctl) driver"
#define my_VERSION	MPT_LINUX_VERSION_COMMON
#define MYNAM		"mptctl"

MODULE_AUTHOR(MODULEAUTHOR);
MODULE_DESCRIPTION(my_NAME);
MODULE_LICENSE("GPL");
MODULE_VERSION(my_VERSION);

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

static DEFINE_MUTEX(mpctl_mutex);
static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptctl_taskmgmt_id = MPT_MAX_PROTOCOL_DRIVERS;

static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

struct buflist {
	u8	*kptr;
	int	 len;
};

/*
 * Function prototypes. Called from OS entry point mptctl_ioctl.
 * arg contents specific to function.
 */
static int mptctl_fw_download(unsigned long arg);
static int mptctl_getiocinfo(unsigned long arg, unsigned int cmd);
static int mptctl_gettargetinfo(unsigned long arg);
static int mptctl_readtest(unsigned long arg);
static int mptctl_mpt_command(unsigned long arg);
static int mptctl_eventquery(unsigned long arg);
static int mptctl_eventenable(unsigned long arg);
static int mptctl_eventreport(unsigned long arg);
static int mptctl_replace_fw(unsigned long arg);

static int mptctl_do_reset(unsigned long arg);
static int mptctl_hp_hostinfo(unsigned long arg, unsigned int cmd);
static int mptctl_hp_targetinfo(unsigned long arg);

static int  mptctl_probe(struct pci_dev *, const struct pci_device_id *);
static void mptctl_remove(struct pci_dev *);

#ifdef CONFIG_COMPAT
static long compat_mpctl_ioctl(struct file *f, unsigned cmd, unsigned long arg);
#endif
/*
 * Private function calls.
 */
static int mptctl_do_mpt_command(struct mpt_ioctl_command karg, void __user *mfPtr);
static int mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen);
static MptSge_t *kbuf_alloc_2_sgl(int bytes, u32 dir, int sge_offset, int *frags,
		struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc);
static void kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma,
		struct buflist *buflist, MPT_ADAPTER *ioc);

/*
 * Reset Handler cleanup function
 */
static int  mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);

/*
 * Event Handler function
 */
static int mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
static struct fasync_struct *async_queue=NULL;

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * Scatter gather list (SGL) sizes and limits...
 */
//#define MAX_SCSI_FRAGS	9
#define MAX_FRAGS_SPILL1	9
#define MAX_FRAGS_SPILL2	15
#define FRAGS_PER_BUCKET	(MAX_FRAGS_SPILL2 + 1)

//#define MAX_CHAIN_FRAGS	64
//#define MAX_CHAIN_FRAGS	(15+15+15+16)
#define MAX_CHAIN_FRAGS		(4 * MAX_FRAGS_SPILL2 + 1)

//  Define max sg LIST bytes ( == (#frags + #chains) * 8 bytes each)
//  Works out to: 592d bytes!     (9+1)*8 + 4*(15+1)*8
//                  ^----------------- 80 + 512
#define MAX_SGL_BYTES		((MAX_FRAGS_SPILL1 + 1 + (4 * FRAGS_PER_BUCKET)) * 8)

/* linux only seems to ever give 128kB MAX contiguous (GFP_USER) mem bytes */
#define MAX_KMALLOC_SZ		(128*1024)

#define MPT_IOCTL_DEFAULT_TIMEOUT 10	/* Default timeout value (seconds) */

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
 *	mptctl_syscall_down - Down the MPT adapter syscall semaphore.
 *	@ioc: Pointer to MPT adapter
 *	@nonblock: boolean, non-zero if O_NONBLOCK is set
 *
 *	All of the ioctl commands can potentially sleep, which is illegal
 *	with a spinlock held, thus we perform mutual exclusion here.
 *
 *	Returns negative errno on error, or zero for success.
 */
static inline int
mptctl_syscall_down(MPT_ADAPTER *ioc, int nonblock)
{
	int rc = 0;

	if (nonblock) {
		if (!mutex_trylock(&ioc->ioctl_cmds.mutex))
			rc = -EAGAIN;
	} else {
		if (mutex_lock_interruptible(&ioc->ioctl_cmds.mutex))
			rc = -ERESTARTSYS;
	}
	return rc;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *  This is the callback for any message we have posted. The message itself
 *  will be returned to the message pool when we return from the IRQ
 *
 *  This runs in irq context so be short and sweet.
 */
static int
mptctl_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
{
	char	*sense_data;
	int	req_index;
	int	sz;

	if (!req)
		return 0;

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "completing mpi function "
	    "(0x%02X), req=%p, reply=%p\n", ioc->name,  req->u.hdr.Function,
	    req, reply));

	/*
	 * Handling continuation of the same reply. Processing the first
	 * reply, and eating the other replys that come later.
	 */
	if (ioc->ioctl_cmds.msg_context != req->u.hdr.MsgContext)
		goto out_continuation;

	ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;

	if (!reply)
		goto out;

	ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
	sz = min(ioc->reply_sz, 4*reply->u.reply.MsgLength);
	memcpy(ioc->ioctl_cmds.reply, reply, sz);

	if (reply->u.reply.IOCStatus || reply->u.reply.IOCLogInfo)
		dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "iocstatus (0x%04X), loginfo (0x%08X)\n", ioc->name,
		    le16_to_cpu(reply->u.reply.IOCStatus),
		    le32_to_cpu(reply->u.reply.IOCLogInfo)));

	if ((req->u.hdr.Function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
		(req->u.hdr.Function ==
		 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {

		if (reply->u.sreply.SCSIStatus || reply->u.sreply.SCSIState)
			dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			"scsi_status (0x%02x), scsi_state (0x%02x), "
			"tag = (0x%04x), transfer_count (0x%08x)\n", ioc->name,
			reply->u.sreply.SCSIStatus,
			reply->u.sreply.SCSIState,
			le16_to_cpu(reply->u.sreply.TaskTag),
			le32_to_cpu(reply->u.sreply.TransferCount)));

		if (reply->u.sreply.SCSIState &
			MPI_SCSI_STATE_AUTOSENSE_VALID) {
			sz = req->u.scsireq.SenseBufferLength;
			req_index =
			    le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
			sense_data = ((u8 *)ioc->sense_buf_pool +
			     (req_index * MPT_SENSE_BUFFER_ALLOC));
			memcpy(ioc->ioctl_cmds.sense, sense_data, sz);
			ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_SENSE_VALID;
		}
	}

 out:
	/* We are done, issue wake up
	 */
	if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
		if (req->u.hdr.Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
			mpt_clear_taskmgmt_in_progress_flag(ioc);
			ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
			complete(&ioc->ioctl_cmds.done);
			if (ioc->bus_type == SAS)
				ioc->schedule_target_reset(ioc);
		} else {
			ioc->ioctl_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
			complete(&ioc->ioctl_cmds.done);
		}
	}

 out_continuation:
	if (reply && (reply->u.reply.MsgFlags &
	    MPI_MSGFLAGS_CONTINUATION_REPLY))
		return 0;
	return 1;
}


static int
mptctl_taskmgmt_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
{
	if (!mf)
		return 0;

	dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		"TaskMgmt completed (mf=%p, mr=%p)\n",
		ioc->name, mf, mr));

	ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;

	if (!mr)
		goto out;

	ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
	memcpy(ioc->taskmgmt_cmds.reply, mr,
	    min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
 out:
	if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
		mpt_clear_taskmgmt_in_progress_flag(ioc);
		ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
		complete(&ioc->taskmgmt_cmds.done);
		if (ioc->bus_type == SAS)
			ioc->schedule_target_reset(ioc);
		return 1;
	}
	return 0;
}

static int
mptctl_do_taskmgmt(MPT_ADAPTER *ioc, u8 tm_type, u8 bus_id, u8 target_id)
{
	MPT_FRAME_HDR	*mf;
	SCSITaskMgmt_t	*pScsiTm;
	SCSITaskMgmtReply_t *pScsiTmReply;
	int		 ii;
	int		 retval;
	unsigned long	 timeout;
	unsigned long	 time_count;
	u16		 iocstatus;


	mutex_lock(&ioc->taskmgmt_cmds.mutex);
	if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
		mutex_unlock(&ioc->taskmgmt_cmds.mutex);
		return -EPERM;
	}

	retval = 0;

	mf = mpt_get_msg_frame(mptctl_taskmgmt_id, ioc);
	if (mf == NULL) {
		dtmprintk(ioc,
			printk(MYIOC_s_WARN_FMT "TaskMgmt, no msg frames!!\n",
			ioc->name));
		mpt_clear_taskmgmt_in_progress_flag(ioc);
		retval = -ENOMEM;
		goto tm_done;
	}

	dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
		ioc->name, mf));

	pScsiTm = (SCSITaskMgmt_t *) mf;
	memset(pScsiTm, 0, sizeof(SCSITaskMgmt_t));
	pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
	pScsiTm->TaskType = tm_type;
	if ((tm_type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) &&
		(ioc->bus_type == FC))
		pScsiTm->MsgFlags =
				MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
	pScsiTm->TargetID = target_id;
	pScsiTm->Bus = bus_id;
	pScsiTm->ChainOffset = 0;
	pScsiTm->Reserved = 0;
	pScsiTm->Reserved1 = 0;
	pScsiTm->TaskMsgContext = 0;
	for (ii= 0; ii < 8; ii++)
		pScsiTm->LUN[ii] = 0;
	for (ii=0; ii < 7; ii++)
		pScsiTm->Reserved2[ii] = 0;

	switch (ioc->bus_type) {
	case FC:
		timeout = 40;
		break;
	case SAS:
		timeout = 30;
		break;
	case SPI:
		default:
		timeout = 10;
		break;
	}

	dtmprintk(ioc,
		printk(MYIOC_s_DEBUG_FMT "TaskMgmt type=%d timeout=%ld\n",
		ioc->name, tm_type, timeout));

	INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
	time_count = jiffies;
	if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
	    (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
		mpt_put_msg_frame_hi_pri(mptctl_taskmgmt_id, ioc, mf);
	else {
		retval = mpt_send_handshake_request(mptctl_taskmgmt_id, ioc,
		    sizeof(SCSITaskMgmt_t), (u32 *)pScsiTm, CAN_SLEEP);
		if (retval != 0) {
			dfailprintk(ioc,
				printk(MYIOC_s_ERR_FMT
				"TaskMgmt send_handshake FAILED!"
				" (ioc %p, mf %p, rc=%d) \n", ioc->name,
				ioc, mf, retval));
			mpt_free_msg_frame(ioc, mf);
			mpt_clear_taskmgmt_in_progress_flag(ioc);
			goto tm_done;
		}
	}

	/* Now wait for the command to complete */
	ii = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, timeout*HZ);

	if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "TaskMgmt failed\n", ioc->name));
		mpt_free_msg_frame(ioc, mf);
		mpt_clear_taskmgmt_in_progress_flag(ioc);
		if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
			retval = 0;
		else
			retval = -1; /* return failure */
		goto tm_done;
	}

	if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "TaskMgmt failed\n", ioc->name));
		retval = -1; /* return failure */
		goto tm_done;
	}

	pScsiTmReply = (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply;
	dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
	    "TaskMgmt fw_channel = %d, fw_id = %d, task_type=0x%02X, "
	    "iocstatus=0x%04X\n\tloginfo=0x%08X, response_code=0x%02X, "
	    "term_cmnds=%d\n", ioc->name, pScsiTmReply->Bus,
	    pScsiTmReply->TargetID, tm_type,
	    le16_to_cpu(pScsiTmReply->IOCStatus),
	    le32_to_cpu(pScsiTmReply->IOCLogInfo),
	    pScsiTmReply->ResponseCode,
	    le32_to_cpu(pScsiTmReply->TerminationCount)));

	iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;

	if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
	   iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED ||
	   iocstatus == MPI_IOCSTATUS_SUCCESS)
		retval = 0;
	else {
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "TaskMgmt failed\n", ioc->name));
		retval = -1; /* return failure */
	}

 tm_done:
	mutex_unlock(&ioc->taskmgmt_cmds.mutex);
	CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
	return retval;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* mptctl_timeout_expired
 *
 * Expecting an interrupt, however timed out.
 *
 */
static void
mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
{
	unsigned long flags;
	int ret_val = -1;
	SCSIIORequest_t *scsi_req = (SCSIIORequest_t *) mf;
	u8 function = mf->u.hdr.Function;

	dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": %s\n",
		ioc->name, __func__));

	if (mpt_fwfault_debug)
		mpt_halt_firmware(ioc);

	spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
	if (ioc->ioc_reset_in_progress) {
		spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
		CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
		mpt_free_msg_frame(ioc, mf);
		return;
	}
	spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);


	CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)

	if (ioc->bus_type == SAS) {
		if (function == MPI_FUNCTION_SCSI_IO_REQUEST)
			ret_val = mptctl_do_taskmgmt(ioc,
				MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
				scsi_req->Bus, scsi_req->TargetID);
		else if (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
			ret_val = mptctl_do_taskmgmt(ioc,
				MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
				scsi_req->Bus, 0);
		if (!ret_val)
			return;
	} else {
		if ((function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
			(function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH))
			ret_val = mptctl_do_taskmgmt(ioc,
				MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
				scsi_req->Bus, 0);
		if (!ret_val)
			return;
	}

	dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling Reset! \n",
		 ioc->name));
	mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
	mpt_free_msg_frame(ioc, mf);
}


/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* mptctl_ioc_reset
 *
 * Clean-up functionality. Used only if there has been a
 * reload of the FW due.
 *
 */
static int
mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
{
	switch(reset_phase) {
	case MPT_IOC_SETUP_RESET:
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
		break;
	case MPT_IOC_PRE_RESET:
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
		break;
	case MPT_IOC_POST_RESET:
		dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
		if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_PENDING) {
			ioc->ioctl_cmds.status |= MPT_MGMT_STATUS_DID_IOCRESET;
			complete(&ioc->ioctl_cmds.done);
		}
		break;
	default:
		break;
	}

	return 1;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* ASYNC Event Notification Support */
static int
mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
{
	u8 event;

	event = le32_to_cpu(pEvReply->Event) & 0xFF;

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s() called\n",
	    ioc->name, __func__));
	if(async_queue == NULL)
		return 1;

	/* Raise SIGIO for persistent events.
	 * TODO - this define is not in MPI spec yet,
	 * but they plan to set it to 0x21
	 */
	 if (event == 0x21 ) {
		ioc->aen_event_read_flag=1;
		dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Raised SIGIO to application\n",
		    ioc->name));
		devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "Raised SIGIO to application\n", ioc->name));
		kill_fasync(&async_queue, SIGIO, POLL_IN);
		return 1;
	 }

	/* This flag is set after SIGIO was raised, and
	 * remains set until the application has read
	 * the event log via ioctl=MPTEVENTREPORT
	 */
	if(ioc->aen_event_read_flag)
		return 1;

	/* Signal only for the events that are
	 * requested for by the application
	 */
	if (ioc->events && (ioc->eventTypes & ( 1 << event))) {
		ioc->aen_event_read_flag=1;
		dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "Raised SIGIO to application\n", ioc->name));
		devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
		    "Raised SIGIO to application\n", ioc->name));
		kill_fasync(&async_queue, SIGIO, POLL_IN);
	}
	return 1;
}

static int
mptctl_fasync(int fd, struct file *filep, int mode)
{
	MPT_ADAPTER	*ioc;
	int ret;

	mutex_lock(&mpctl_mutex);
	list_for_each_entry(ioc, &ioc_list, list)
		ioc->aen_event_read_flag=0;

	ret = fasync_helper(fd, filep, mode, &async_queue);
	mutex_unlock(&mpctl_mutex);
	return ret;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *  MPT ioctl handler
 *  cmd - specify the particular IOCTL command to be issued
 *  arg - data specific to the command. Must not be null.
 */
static long
__mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	mpt_ioctl_header __user *uhdr = (void __user *) arg;
	mpt_ioctl_header	 khdr;
	int iocnum;
	unsigned iocnumX;
	int nonblock = (file->f_flags & O_NONBLOCK);
	int ret;
	MPT_ADAPTER *iocp = NULL;

	if (copy_from_user(&khdr, uhdr, sizeof(khdr))) {
		printk(KERN_ERR MYNAM "%s::mptctl_ioctl() @%d - "
				"Unable to copy mpt_ioctl_header data @ %p\n",
				__FILE__, __LINE__, uhdr);
		return -EFAULT;
	}
	ret = -ENXIO;				/* (-6) No such device or address */

	/* Verify intended MPT adapter - set iocnum and the adapter
	 * pointer (iocp)
	 */
	iocnumX = khdr.iocnum & 0xFF;
	if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
	    (iocp == NULL))
		return -ENODEV;

	if (!iocp->active) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - Controller disabled.\n",
				__FILE__, __LINE__);
		return -EFAULT;
	}

	/* Handle those commands that are just returning
	 * information stored in the driver.
	 * These commands should never time out and are unaffected
	 * by TM and FW reloads.
	 */
	if ((cmd & ~IOCSIZE_MASK) == (MPTIOCINFO & ~IOCSIZE_MASK)) {
		return mptctl_getiocinfo(arg, _IOC_SIZE(cmd));
	} else if (cmd == MPTTARGETINFO) {
		return mptctl_gettargetinfo(arg);
	} else if (cmd == MPTTEST) {
		return mptctl_readtest(arg);
	} else if (cmd == MPTEVENTQUERY) {
		return mptctl_eventquery(arg);
	} else if (cmd == MPTEVENTENABLE) {
		return mptctl_eventenable(arg);
	} else if (cmd == MPTEVENTREPORT) {
		return mptctl_eventreport(arg);
	} else if (cmd == MPTFWREPLACE) {
		return mptctl_replace_fw(arg);
	}

	/* All of these commands require an interrupt or
	 * are unknown/illegal.
	 */
	if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
		return ret;

	if (cmd == MPTFWDOWNLOAD)
		ret = mptctl_fw_download(arg);
	else if (cmd == MPTCOMMAND)
		ret = mptctl_mpt_command(arg);
	else if (cmd == MPTHARDRESET)
		ret = mptctl_do_reset(arg);
	else if ((cmd & ~IOCSIZE_MASK) == (HP_GETHOSTINFO & ~IOCSIZE_MASK))
		ret = mptctl_hp_hostinfo(arg, _IOC_SIZE(cmd));
	else if (cmd == HP_GETTARGETINFO)
		ret = mptctl_hp_targetinfo(arg);
	else
		ret = -EINVAL;

	mutex_unlock(&iocp->ioctl_cmds.mutex);

	return ret;
}

static long
mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	long ret;
	mutex_lock(&mpctl_mutex);
	ret = __mptctl_ioctl(file, cmd, arg);
	mutex_unlock(&mpctl_mutex);
	return ret;
}

static int mptctl_do_reset(unsigned long arg)
{
	struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
	struct mpt_ioctl_diag_reset krinfo;
	MPT_ADAPTER		*iocp;

	if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_do_reset - "
				"Unable to copy mpt_ioctl_diag_reset struct @ %p\n",
				__FILE__, __LINE__, urinfo);
		return -EFAULT;
	}

	if (mpt_verify_adapter(krinfo.hdr.iocnum, &iocp) < 0) {
		printk(KERN_DEBUG MYNAM "%s@%d::mptctl_do_reset - ioc%d not found!\n",
				__FILE__, __LINE__, krinfo.hdr.iocnum);
		return -ENODEV; /* (-6) No such device or address */
	}

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "mptctl_do_reset called.\n",
	    iocp->name));

	if (mpt_HardResetHandler(iocp, CAN_SLEEP) != 0) {
		printk (MYIOC_s_ERR_FMT "%s@%d::mptctl_do_reset - reset failed.\n",
			iocp->name, __FILE__, __LINE__);
		return -1;
	}

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * MPT FW download function.  Cast the arg into the mpt_fw_xfer structure.
 * This structure contains: iocnum, firmware length (bytes),
 *      pointer to user space memory where the fw image is stored.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENXIO  if no such device
 *		-EAGAIN if resource problem
 *		-ENOMEM if no memory for SGE
 *		-EMLINK if too many chain buffers required
 *		-EBADRQC if adapter does not support FW download
 *		-EBUSY if adapter is busy
 *		-ENOMSG if FW upload returned bad status
 */
static int
mptctl_fw_download(unsigned long arg)
{
	struct mpt_fw_xfer __user *ufwdl = (void __user *) arg;
	struct mpt_fw_xfer	 kfwdl;

	if (copy_from_user(&kfwdl, ufwdl, sizeof(struct mpt_fw_xfer))) {
		printk(KERN_ERR MYNAM "%s@%d::_ioctl_fwdl - "
				"Unable to copy mpt_fw_xfer struct @ %p\n",
				__FILE__, __LINE__, ufwdl);
		return -EFAULT;
	}

	return mptctl_do_fw_download(kfwdl.iocnum, kfwdl.bufp, kfwdl.fwlen);
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * FW Download engine.
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENXIO  if no such device
 *		-EAGAIN if resource problem
 *		-ENOMEM if no memory for SGE
 *		-EMLINK if too many chain buffers required
 *		-EBADRQC if adapter does not support FW download
 *		-EBUSY if adapter is busy
 *		-ENOMSG if FW upload returned bad status
 */
static int
mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen)
{
	FWDownload_t		*dlmsg;
	MPT_FRAME_HDR		*mf;
	MPT_ADAPTER		*iocp;
	FWDownloadTCSGE_t	*ptsge;
	MptSge_t		*sgl, *sgIn;
	char			*sgOut;
	struct buflist		*buflist;
	struct buflist		*bl;
	dma_addr_t		 sgl_dma;
	int			 ret;
	int			 numfrags = 0;
	int			 maxfrags;
	int			 n = 0;
	u32			 sgdir;
	u32			 nib;
	int			 fw_bytes_copied = 0;
	int			 i;
	int			 sge_offset = 0;
	u16			 iocstat;
	pFWDownloadReply_t	 ReplyMsg = NULL;
	unsigned long		 timeleft;

	if (mpt_verify_adapter(ioc, &iocp) < 0) {
		printk(KERN_DEBUG MYNAM "ioctl_fwdl - ioc%d not found!\n",
				 ioc);
		return -ENODEV; /* (-6) No such device or address */
	} else {

		/*  Valid device. Get a message frame and construct the FW download message.
	 	*/
		if ((mf = mpt_get_msg_frame(mptctl_id, iocp)) == NULL)
			return -EAGAIN;
	}

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT
	    "mptctl_do_fwdl called. mptctl_id = %xh.\n", iocp->name, mptctl_id));
	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.bufp  = %p\n",
	    iocp->name, ufwbuf));
	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.fwlen = %d\n",
	    iocp->name, (int)fwlen));
	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: kfwdl.ioc   = %04xh\n",
	    iocp->name, ioc));

	dlmsg = (FWDownload_t*) mf;
	ptsge = (FWDownloadTCSGE_t *) &dlmsg->SGL;
	sgOut = (char *) (ptsge + 1);

	/*
	 * Construct f/w download request
	 */
	dlmsg->ImageType = MPI_FW_DOWNLOAD_ITYPE_FW;
	dlmsg->Reserved = 0;
	dlmsg->ChainOffset = 0;
	dlmsg->Function = MPI_FUNCTION_FW_DOWNLOAD;
	dlmsg->Reserved1[0] = dlmsg->Reserved1[1] = dlmsg->Reserved1[2] = 0;
	if (iocp->facts.MsgVersion >= MPI_VERSION_01_05)
		dlmsg->MsgFlags = MPI_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT;
	else
		dlmsg->MsgFlags = 0;


	/* Set up the Transaction SGE.
	 */
	ptsge->Reserved = 0;
	ptsge->ContextSize = 0;
	ptsge->DetailsLength = 12;
	ptsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
	ptsge->Reserved_0100_Checksum = 0;
	ptsge->ImageOffset = 0;
	ptsge->ImageSize = cpu_to_le32(fwlen);

	/* Add the SGL
	 */

	/*
	 * Need to kmalloc area(s) for holding firmware image bytes.
	 * But we need to do it piece meal, using a proper
	 * scatter gather list (with 128kB MAX hunks).
	 *
	 * A practical limit here might be # of sg hunks that fit into
	 * a single IOC request frame; 12 or 8 (see below), so:
	 * For FC9xx: 12 x 128kB == 1.5 mB (max)
	 * For C1030:  8 x 128kB == 1   mB (max)
	 * We could support chaining, but things get ugly(ier:)
	 *
	 * Set the sge_offset to the start of the sgl (bytes).
	 */
	sgdir = 0x04000000;		/* IOC will READ from sys mem */
	sge_offset = sizeof(MPIHeader_t) + sizeof(FWDownloadTCSGE_t);
	if ((sgl = kbuf_alloc_2_sgl(fwlen, sgdir, sge_offset,
				    &numfrags, &buflist, &sgl_dma, iocp)) == NULL)
		return -ENOMEM;

	/*
	 * We should only need SGL with 2 simple_32bit entries (up to 256 kB)
	 * for FC9xx f/w image, but calculate max number of sge hunks
	 * we can fit into a request frame, and limit ourselves to that.
	 * (currently no chain support)
	 * maxfrags = (Request Size - FWdownload Size ) / Size of 32 bit SGE
	 *	Request		maxfrags
	 *	128		12
	 *	96		8
	 *	64		4
	 */
	maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) -
			sizeof(FWDownloadTCSGE_t))
			/ iocp->SGE_size;
	if (numfrags > maxfrags) {
		ret = -EMLINK;
		goto fwdl_out;
	}

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "DbG: sgl buffer = %p, sgfrags = %d\n",
	    iocp->name, sgl, numfrags));

	/*
	 * Parse SG list, copying sgl itself,
	 * plus f/w image hunks from user space as we go...
	 */
	ret = -EFAULT;
	sgIn = sgl;
	bl = buflist;
	for (i=0; i < numfrags; i++) {

		/* Get the SGE type: 0 - TCSGE, 3 - Chain, 1 - Simple SGE
		 * Skip everything but Simple. If simple, copy from
		 *	user space into kernel space.
		 * Note: we should not have anything but Simple as
		 *	Chain SGE are illegal.
		 */
		nib = (sgIn->FlagsLength & 0x30000000) >> 28;
		if (nib == 0 || nib == 3) {
			;
		} else if (sgIn->Address) {
			iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address);
			n++;
			if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) {
				printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - "
					"Unable to copy f/w buffer hunk#%d @ %p\n",
					iocp->name, __FILE__, __LINE__, n, ufwbuf);
				goto fwdl_out;
			}
			fw_bytes_copied += bl->len;
		}
		sgIn++;
		bl++;
		sgOut += iocp->SGE_size;
	}

	DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags);

	/*
	 * Finally, perform firmware download.
	 */
	ReplyMsg = NULL;
	SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, dlmsg->MsgContext);
	INITIALIZE_MGMT_STATUS(iocp->ioctl_cmds.status)
	mpt_put_msg_frame(mptctl_id, iocp, mf);

	/* Now wait for the command to complete */
retry_wait:
	timeleft = wait_for_completion_timeout(&iocp->ioctl_cmds.done, HZ*60);
	if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
		ret = -ETIME;
		printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
		if (iocp->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
			mpt_free_msg_frame(iocp, mf);
			goto fwdl_out;
		}
		if (!timeleft) {
			printk(MYIOC_s_WARN_FMT
			       "FW download timeout, doorbell=0x%08x\n",
			       iocp->name, mpt_GetIocState(iocp, 0));
			mptctl_timeout_expired(iocp, mf);
		} else
			goto retry_wait;
		goto fwdl_out;
	}

	if (!(iocp->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
		printk(MYIOC_s_WARN_FMT "%s: failed\n", iocp->name, __func__);
		mpt_free_msg_frame(iocp, mf);
		ret = -ENODATA;
		goto fwdl_out;
	}

	if (sgl)
		kfree_sgl(sgl, sgl_dma, buflist, iocp);

	ReplyMsg = (pFWDownloadReply_t)iocp->ioctl_cmds.reply;
	iocstat = le16_to_cpu(ReplyMsg->IOCStatus) & MPI_IOCSTATUS_MASK;
	if (iocstat == MPI_IOCSTATUS_SUCCESS) {
		printk(MYIOC_s_INFO_FMT "F/W update successful!\n", iocp->name);
		return 0;
	} else if (iocstat == MPI_IOCSTATUS_INVALID_FUNCTION) {
		printk(MYIOC_s_WARN_FMT "Hmmm...  F/W download not supported!?!\n",
			iocp->name);
		printk(MYIOC_s_WARN_FMT "(time to go bang on somebodies door)\n",
			iocp->name);
		return -EBADRQC;
	} else if (iocstat == MPI_IOCSTATUS_BUSY) {
		printk(MYIOC_s_WARN_FMT "IOC_BUSY!\n", iocp->name);
		printk(MYIOC_s_WARN_FMT "(try again later?)\n", iocp->name);
		return -EBUSY;
	} else {
		printk(MYIOC_s_WARN_FMT "ioctl_fwdl() returned [bad] status = %04xh\n",
			iocp->name, iocstat);
		printk(MYIOC_s_WARN_FMT "(bad VooDoo)\n", iocp->name);
		return -ENOMSG;
	}
	return 0;

fwdl_out:

	CLEAR_MGMT_STATUS(iocp->ioctl_cmds.status);
	SET_MGMT_MSG_CONTEXT(iocp->ioctl_cmds.msg_context, 0);
        kfree_sgl(sgl, sgl_dma, buflist, iocp);
	return ret;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * SGE Allocation routine
 *
 * Inputs:	bytes - number of bytes to be transferred
 *		sgdir - data direction
 *		sge_offset - offset (in bytes) from the start of the request
 *			frame to the first SGE
 *		ioc - pointer to the mptadapter
 * Outputs:	frags - number of scatter gather elements
 *		blp - point to the buflist pointer
 *		sglbuf_dma - pointer to the (dma) sgl
 * Returns:	Null if failes
 *		pointer to the (virtual) sgl if successful.
 */
static MptSge_t *
kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags,
		 struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc)
{
	MptSge_t	*sglbuf = NULL;		/* pointer to array of SGE */
						/* and chain buffers */
	struct buflist	*buflist = NULL;	/* kernel routine */
	MptSge_t	*sgl;
	int		 numfrags = 0;
	int		 fragcnt = 0;
	int		 alloc_sz = min(bytes,MAX_KMALLOC_SZ);	// avoid kernel warning msg!
	int		 bytes_allocd = 0;
	int		 this_alloc;
	dma_addr_t	 pa;					// phys addr
	int		 i, buflist_ent;
	int		 sg_spill = MAX_FRAGS_SPILL1;
	int		 dir;
	/* initialization */
	*frags = 0;
	*blp = NULL;

	/* Allocate and initialize an array of kernel
	 * structures for the SG elements.
	 */
	i = MAX_SGL_BYTES / 8;
	buflist = kzalloc(i, GFP_USER);
	if (!buflist)
		return NULL;
	buflist_ent = 0;

	/* Allocate a single block of memory to store the sg elements and
	 * the chain buffers.  The calling routine is responsible for
	 * copying the data in this array into the correct place in the
	 * request and chain buffers.
	 */
	sglbuf = pci_alloc_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf_dma);
	if (sglbuf == NULL)
		goto free_and_fail;

	if (sgdir & 0x04000000)
		dir = PCI_DMA_TODEVICE;
	else
		dir = PCI_DMA_FROMDEVICE;

	/* At start:
	 *	sgl = sglbuf = point to beginning of sg buffer
	 *	buflist_ent = 0 = first kernel structure
	 *	sg_spill = number of SGE that can be written before the first
	 *		chain element.
	 *
	 */
	sgl = sglbuf;
	sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1;
	while (bytes_allocd < bytes) {
		this_alloc = min(alloc_sz, bytes-bytes_allocd);
		buflist[buflist_ent].len = this_alloc;
		buflist[buflist_ent].kptr = pci_alloc_consistent(ioc->pcidev,
								 this_alloc,
								 &pa);
		if (buflist[buflist_ent].kptr == NULL) {
			alloc_sz = alloc_sz / 2;
			if (alloc_sz == 0) {
				printk(MYIOC_s_WARN_FMT "-SG: No can do - "
				    "not enough memory!   :-(\n", ioc->name);
				printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
					ioc->name, numfrags);
				goto free_and_fail;
			}
			continue;
		} else {
			dma_addr_t dma_addr;

			bytes_allocd += this_alloc;
			sgl->FlagsLength = (0x10000000|sgdir|this_alloc);
			dma_addr = pci_map_single(ioc->pcidev,
				buflist[buflist_ent].kptr, this_alloc, dir);
			sgl->Address = dma_addr;

			fragcnt++;
			numfrags++;
			sgl++;
			buflist_ent++;
		}

		if (bytes_allocd >= bytes)
			break;

		/* Need to chain? */
		if (fragcnt == sg_spill) {
			printk(MYIOC_s_WARN_FMT
			    "-SG: No can do - " "Chain required!   :-(\n", ioc->name);
			printk(MYIOC_s_WARN_FMT "(freeing %d frags)\n", ioc->name, numfrags);
			goto free_and_fail;
		}

		/* overflow check... */
		if (numfrags*8 > MAX_SGL_BYTES){
			/* GRRRRR... */
			printk(MYIOC_s_WARN_FMT "-SG: No can do - "
				"too many SG frags!   :-(\n", ioc->name);
			printk(MYIOC_s_WARN_FMT "-SG: (freeing %d frags)\n",
				ioc->name, numfrags);
			goto free_and_fail;
		}
	}

	/* Last sge fixup: set LE+eol+eob bits */
	sgl[-1].FlagsLength |= 0xC1000000;

	*frags = numfrags;
	*blp = buflist;

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
	   "%d SG frags generated!\n", ioc->name, numfrags));

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: kbuf_alloc_2_sgl() - "
	   "last (big) alloc_sz=%d\n", ioc->name, alloc_sz));

	return sglbuf;

free_and_fail:
	if (sglbuf != NULL) {
		for (i = 0; i < numfrags; i++) {
			dma_addr_t dma_addr;
			u8 *kptr;
			int len;

			if ((sglbuf[i].FlagsLength >> 24) == 0x30)
				continue;

			dma_addr = sglbuf[i].Address;
			kptr = buflist[i].kptr;
			len = buflist[i].len;

			pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
		}
		pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sglbuf, *sglbuf_dma);
	}
	kfree(buflist);
	return NULL;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * Routine to free the SGL elements.
 */
static void
kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma, struct buflist *buflist, MPT_ADAPTER *ioc)
{
	MptSge_t	*sg = sgl;
	struct buflist	*bl = buflist;
	u32		 nib;
	int		 dir;
	int		 n = 0;

	if (sg->FlagsLength & 0x04000000)
		dir = PCI_DMA_TODEVICE;
	else
		dir = PCI_DMA_FROMDEVICE;

	nib = (sg->FlagsLength & 0xF0000000) >> 28;
	while (! (nib & 0x4)) { /* eob */
		/* skip ignore/chain. */
		if (nib == 0 || nib == 3) {
			;
		} else if (sg->Address) {
			dma_addr_t dma_addr;
			void *kptr;
			int len;

			dma_addr = sg->Address;
			kptr = bl->kptr;
			len = bl->len;
			pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
			pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
			n++;
		}
		sg++;
		bl++;
		nib = (le32_to_cpu(sg->FlagsLength) & 0xF0000000) >> 28;
	}

	/* we're at eob! */
	if (sg->Address) {
		dma_addr_t dma_addr;
		void *kptr;
		int len;

		dma_addr = sg->Address;
		kptr = bl->kptr;
		len = bl->len;
		pci_unmap_single(ioc->pcidev, dma_addr, len, dir);
		pci_free_consistent(ioc->pcidev, len, kptr, dma_addr);
		n++;
	}

	pci_free_consistent(ioc->pcidev, MAX_SGL_BYTES, sgl, sgl_dma);
	kfree(buflist);
	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "-SG: Free'd 1 SGL buf + %d kbufs!\n",
	    ioc->name, n));
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptctl_getiocinfo - Query the host adapter for IOC information.
 *	@arg: User space argument
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENODEV  if no such device/adapter
 */
static int
mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
{
	struct mpt_ioctl_iocinfo __user *uarg = (void __user *) arg;
	struct mpt_ioctl_iocinfo *karg;
	MPT_ADAPTER		*ioc;
	struct pci_dev		*pdev;
	int			iocnum;
	unsigned int		port;
	int			cim_rev;
	struct scsi_device 	*sdev;
	VirtDevice		*vdevice;

	/* Add of PCI INFO results in unaligned access for
	 * IA64 and Sparc. Reset long to int. Return no PCI
	 * data for obsolete format.
	 */
	if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev0))
		cim_rev = 0;
	else if (data_size == sizeof(struct mpt_ioctl_iocinfo_rev1))
		cim_rev = 1;
	else if (data_size == sizeof(struct mpt_ioctl_iocinfo))
		cim_rev = 2;
	else if (data_size == (sizeof(struct mpt_ioctl_iocinfo_rev0)+12))
		cim_rev = 0;	/* obsolete */
	else
		return -EFAULT;

	karg = kmalloc(data_size, GFP_KERNEL);
	if (karg == NULL) {
		printk(KERN_ERR MYNAM "%s::mpt_ioctl_iocinfo() @%d - no memory available!\n",
				__FILE__, __LINE__);
		return -ENOMEM;
	}

	if (copy_from_user(karg, uarg, data_size)) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_getiocinfo - "
			"Unable to read in mpt_ioctl_iocinfo struct @ %p\n",
				__FILE__, __LINE__, uarg);
		kfree(karg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg->hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_getiocinfo() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		kfree(karg);
		return -ENODEV;
	}

	/* Verify the data transfer size is correct. */
	if (karg->hdr.maxDataSize != data_size) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
			"Structure size mismatch. Command not completed.\n",
			ioc->name, __FILE__, __LINE__);
		kfree(karg);
		return -EFAULT;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_getiocinfo called.\n",
	    ioc->name));

	/* Fill in the data and return the structure to the calling
	 * program
	 */
	if (ioc->bus_type == SAS)
		karg->adapterType = MPT_IOCTL_INTERFACE_SAS;
	else if (ioc->bus_type == FC)
		karg->adapterType = MPT_IOCTL_INTERFACE_FC;
	else
		karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;

	if (karg->hdr.port > 1) {
		kfree(karg);
		return -EINVAL;
	}
	port = karg->hdr.port;

	karg->port = port;
	pdev = (struct pci_dev *) ioc->pcidev;

	karg->pciId = pdev->device;
	karg->hwRev = pdev->revision;
	karg->subSystemDevice = pdev->subsystem_device;
	karg->subSystemVendor = pdev->subsystem_vendor;

	if (cim_rev == 1) {
		/* Get the PCI bus, device, and function numbers for the IOC
		 */
		karg->pciInfo.u.bits.busNumber = pdev->bus->number;
		karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
		karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
	} else if (cim_rev == 2) {
		/* Get the PCI bus, device, function and segment ID numbers
		   for the IOC */
		karg->pciInfo.u.bits.busNumber = pdev->bus->number;
		karg->pciInfo.u.bits.deviceNumber = PCI_SLOT( pdev->devfn );
		karg->pciInfo.u.bits.functionNumber = PCI_FUNC( pdev->devfn );
		karg->pciInfo.segmentID = pci_domain_nr(pdev->bus);
	}

	/* Get number of devices
         */
	karg->numDevices = 0;
	if (ioc->sh) {
		shost_for_each_device(sdev, ioc->sh) {
			vdevice = sdev->hostdata;
			if (vdevice == NULL || vdevice->vtarget == NULL)
				continue;
			if (vdevice->vtarget->tflags &
			    MPT_TARGET_FLAGS_RAID_COMPONENT)
				continue;
			karg->numDevices++;
		}
	}

	/* Set the BIOS and FW Version
	 */
	karg->FWVersion = ioc->facts.FWVersion.Word;
	karg->BIOSVersion = ioc->biosVersion;

	/* Set the Version Strings.
	 */
	strncpy (karg->driverVersion, MPT_LINUX_PACKAGE_NAME, MPT_IOCTL_VERSION_LENGTH);
	karg->driverVersion[MPT_IOCTL_VERSION_LENGTH-1]='\0';

	karg->busChangeEvent = 0;
	karg->hostId = ioc->pfacts[port].PortSCSIID;
	karg->rsvd[0] = karg->rsvd[1] = 0;

	/* Copy the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, karg, data_size)) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_getiocinfo - "
			"Unable to write out mpt_ioctl_iocinfo struct @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		kfree(karg);
		return -EFAULT;
	}

	kfree(karg);
	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptctl_gettargetinfo - Query the host adapter for target information.
 *	@arg: User space argument
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENODEV  if no such device/adapter
 */
static int
mptctl_gettargetinfo (unsigned long arg)
{
	struct mpt_ioctl_targetinfo __user *uarg = (void __user *) arg;
	struct mpt_ioctl_targetinfo karg;
	MPT_ADAPTER		*ioc;
	VirtDevice		*vdevice;
	char			*pmem;
	int			*pdata;
	int			iocnum;
	int			numDevices = 0;
	int			lun;
	int			maxWordsLeft;
	int			numBytes;
	u8			port;
	struct scsi_device 	*sdev;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_targetinfo))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_gettargetinfo - "
			"Unable to read in mpt_ioctl_targetinfo struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_gettargetinfo() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_gettargetinfo called.\n",
	    ioc->name));
	/* Get the port number and set the maximum number of bytes
	 * in the returned structure.
	 * Ignore the port setting.
	 */
	numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
	maxWordsLeft = numBytes/sizeof(int);
	port = karg.hdr.port;

	if (maxWordsLeft <= 0) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
			ioc->name, __FILE__, __LINE__);
		return -ENOMEM;
	}

	/* Fill in the data and return the structure to the calling
	 * program
	 */

	/* struct mpt_ioctl_targetinfo does not contain sufficient space
	 * for the target structures so when the IOCTL is called, there is
	 * not sufficient stack space for the structure. Allocate memory,
	 * populate the memory, copy back to the user, then free memory.
	 * targetInfo format:
	 * bits 31-24: reserved
	 *      23-16: LUN
	 *      15- 8: Bus Number
	 *       7- 0: Target ID
	 */
	pmem = kzalloc(numBytes, GFP_KERNEL);
	if (!pmem) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo() - no memory available!\n",
			ioc->name, __FILE__, __LINE__);
		return -ENOMEM;
	}
	pdata =  (int *) pmem;

	/* Get number of devices
         */
	if (ioc->sh){
		shost_for_each_device(sdev, ioc->sh) {
			if (!maxWordsLeft)
				continue;
			vdevice = sdev->hostdata;
			if (vdevice == NULL || vdevice->vtarget == NULL)
				continue;
			if (vdevice->vtarget->tflags &
			    MPT_TARGET_FLAGS_RAID_COMPONENT)
				continue;
			lun = (vdevice->vtarget->raidVolume) ? 0x80 : vdevice->lun;
			*pdata = (((u8)lun << 16) + (vdevice->vtarget->channel << 8) +
			    (vdevice->vtarget->id ));
			pdata++;
			numDevices++;
			--maxWordsLeft;
		}
	}
	karg.numDevices = numDevices;

	/* Copy part of the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, &karg,
				sizeof(struct mpt_ioctl_targetinfo))) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
			"Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		kfree(pmem);
		return -EFAULT;
	}

	/* Copy the remaining data from kernel memory to user memory
	 */
	if (copy_to_user(uarg->targetInfo, pmem, numBytes)) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_gettargetinfo - "
			"Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
			ioc->name, __FILE__, __LINE__, pdata);
		kfree(pmem);
		return -EFAULT;
	}

	kfree(pmem);

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* MPT IOCTL Test function.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENODEV  if no such device/adapter
 */
static int
mptctl_readtest (unsigned long arg)
{
	struct mpt_ioctl_test __user *uarg = (void __user *) arg;
	struct mpt_ioctl_test	 karg;
	MPT_ADAPTER *ioc;
	int iocnum;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_test))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_readtest - "
			"Unable to read in mpt_ioctl_test struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_readtest() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_readtest called.\n",
	    ioc->name));
	/* Fill in the data and return the structure to the calling
	 * program
	 */

#ifdef MFCNT
	karg.chip_type = ioc->mfcnt;
#else
	karg.chip_type = ioc->pcidev->device;
#endif
	strncpy (karg.name, ioc->name, MPT_MAX_NAME);
	karg.name[MPT_MAX_NAME-1]='\0';
	strncpy (karg.product, ioc->prod_name, MPT_PRODUCT_LENGTH);
	karg.product[MPT_PRODUCT_LENGTH-1]='\0';

	/* Copy the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_test))) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_readtest - "
			"Unable to write out mpt_ioctl_test struct @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptctl_eventquery - Query the host adapter for the event types
 *	that are being logged.
 *	@arg: User space argument
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-ENODEV  if no such device/adapter
 */
static int
mptctl_eventquery (unsigned long arg)
{
	struct mpt_ioctl_eventquery __user *uarg = (void __user *) arg;
	struct mpt_ioctl_eventquery	 karg;
	MPT_ADAPTER *ioc;
	int iocnum;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventquery))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_eventquery - "
			"Unable to read in mpt_ioctl_eventquery struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_eventquery() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventquery called.\n",
	    ioc->name));
	karg.eventEntries = MPTCTL_EVENT_LOG_SIZE;
	karg.eventTypes = ioc->eventTypes;

	/* Copy the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, &karg, sizeof(struct mpt_ioctl_eventquery))) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventquery - "
			"Unable to write out mpt_ioctl_eventquery struct @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		return -EFAULT;
	}
	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
static int
mptctl_eventenable (unsigned long arg)
{
	struct mpt_ioctl_eventenable __user *uarg = (void __user *) arg;
	struct mpt_ioctl_eventenable	 karg;
	MPT_ADAPTER *ioc;
	int iocnum;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventenable))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_eventenable - "
			"Unable to read in mpt_ioctl_eventenable struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_eventenable() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventenable called.\n",
	    ioc->name));
	if (ioc->events == NULL) {
		/* Have not yet allocated memory - do so now.
		 */
		int sz = MPTCTL_EVENT_LOG_SIZE * sizeof(MPT_IOCTL_EVENTS);
		ioc->events = kzalloc(sz, GFP_KERNEL);
		if (!ioc->events) {
			printk(MYIOC_s_ERR_FMT
			    ": ERROR - Insufficient memory to add adapter!\n",
			    ioc->name);
			return -ENOMEM;
		}
		ioc->alloc_total += sz;

		ioc->eventContext = 0;
        }

	/* Update the IOC event logging flag.
	 */
	ioc->eventTypes = karg.eventTypes;

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
static int
mptctl_eventreport (unsigned long arg)
{
	struct mpt_ioctl_eventreport __user *uarg = (void __user *) arg;
	struct mpt_ioctl_eventreport	 karg;
	MPT_ADAPTER		 *ioc;
	int			 iocnum;
	int			 numBytes, maxEvents, max;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_eventreport))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_eventreport - "
			"Unable to read in mpt_ioctl_eventreport struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_eventreport() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}
	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_eventreport called.\n",
	    ioc->name));

	numBytes = karg.hdr.maxDataSize - sizeof(mpt_ioctl_header);
	maxEvents = numBytes/sizeof(MPT_IOCTL_EVENTS);


	max = MPTCTL_EVENT_LOG_SIZE < maxEvents ? MPTCTL_EVENT_LOG_SIZE : maxEvents;

	/* If fewer than 1 event is requested, there must have
	 * been some type of error.
	 */
	if ((max < 1) || !ioc->events)
		return -ENODATA;

	/* reset this flag so SIGIO can restart */
	ioc->aen_event_read_flag=0;

	/* Copy the data from kernel memory to user memory
	 */
	numBytes = max * sizeof(MPT_IOCTL_EVENTS);
	if (copy_to_user(uarg->eventData, ioc->events, numBytes)) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_eventreport - "
			"Unable to write out mpt_ioctl_eventreport struct @ %p\n",
			ioc->name, __FILE__, __LINE__, ioc->events);
		return -EFAULT;
	}

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
static int
mptctl_replace_fw (unsigned long arg)
{
	struct mpt_ioctl_replace_fw __user *uarg = (void __user *) arg;
	struct mpt_ioctl_replace_fw	 karg;
	MPT_ADAPTER		 *ioc;
	int			 iocnum;
	int			 newFwSize;

	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_replace_fw))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_replace_fw - "
			"Unable to read in mpt_ioctl_replace_fw struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_replace_fw() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_replace_fw called.\n",
	    ioc->name));
	/* If caching FW, Free the old FW image
	 */
	if (ioc->cached_fw == NULL)
		return 0;

	mpt_free_fw_memory(ioc);

	/* Allocate memory for the new FW image
	 */
	newFwSize = karg.newImageSize;

	if (newFwSize & 0x01)
		newFwSize += 1;
	if (newFwSize & 0x02)
		newFwSize += 2;

	mpt_alloc_fw_memory(ioc, newFwSize);
	if (ioc->cached_fw == NULL)
		return -ENOMEM;

	/* Copy the data from user memory to kernel space
	 */
	if (copy_from_user(ioc->cached_fw, uarg->newImage, newFwSize)) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_replace_fw - "
				"Unable to read in mpt_ioctl_replace_fw image "
				"@ %p\n", ioc->name, __FILE__, __LINE__, uarg);
		mpt_free_fw_memory(ioc);
		return -EFAULT;
	}

	/* Update IOCFactsReply
	 */
	ioc->facts.FWImageSize = newFwSize;
	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* MPT IOCTL MPTCOMMAND function.
 * Cast the arg into the mpt_ioctl_mpt_command structure.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EBUSY  if previous command timeout and IOC reset is not complete.
 *		-EFAULT if data unavailable
 *		-ENODEV if no such device/adapter
 *		-ETIME	if timer expires
 *		-ENOMEM if memory allocation error
 */
static int
mptctl_mpt_command (unsigned long arg)
{
	struct mpt_ioctl_command __user *uarg = (void __user *) arg;
	struct mpt_ioctl_command  karg;
	MPT_ADAPTER	*ioc;
	int		iocnum;
	int		rc;


	if (copy_from_user(&karg, uarg, sizeof(struct mpt_ioctl_command))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_mpt_command - "
			"Unable to read in mpt_ioctl_command struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_mpt_command() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	rc = mptctl_do_mpt_command (karg, &uarg->MF);

	return rc;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EBUSY  if previous command timeout and IOC reset is not complete.
 *		-EFAULT if data unavailable
 *		-ENODEV if no such device/adapter
 *		-ETIME	if timer expires
 *		-ENOMEM if memory allocation error
 *		-EPERM if SCSI I/O and target is untagged
 */
static int
mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
{
	MPT_ADAPTER	*ioc;
	MPT_FRAME_HDR	*mf = NULL;
	MPIHeader_t	*hdr;
	char		*psge;
	struct buflist	bufIn;	/* data In buffer */
	struct buflist	bufOut; /* data Out buffer */
	dma_addr_t	dma_addr_in;
	dma_addr_t	dma_addr_out;
	int		sgSize = 0;	/* Num SG elements */
	int		iocnum, flagsLength;
	int		sz, rc = 0;
	int		msgContext;
	u16		req_idx;
	ulong 		timeout;
	unsigned long	timeleft;
	struct scsi_device *sdev;
	unsigned long	 flags;
	u8		 function;

	/* bufIn and bufOut are used for user to kernel space transfers
	 */
	bufIn.kptr = bufOut.kptr = NULL;
	bufIn.len = bufOut.len = 0;

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}

	spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
	if (ioc->ioc_reset_in_progress) {
		spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
		printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
			"Busy with diagnostic reset\n", __FILE__, __LINE__);
		return -EBUSY;
	}
	spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);

	/* Verify that the final request frame will not be too large.
	 */
	sz = karg.dataSgeOffset * 4;
	if (karg.dataInSize > 0)
		sz += ioc->SGE_size;
	if (karg.dataOutSize > 0)
		sz += ioc->SGE_size;

	if (sz > ioc->req_sz) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
			"Request frame too large (%d) maximum (%d)\n",
			ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
		return -EFAULT;
	}

	/* Get a free request frame and save the message context.
	 */
        if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
                return -EAGAIN;

	hdr = (MPIHeader_t *) mf;
	msgContext = le32_to_cpu(hdr->MsgContext);
	req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);

	/* Copy the request frame
	 * Reset the saved message context.
	 * Request frame in user space
	 */
	if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
			"Unable to read MF from mpt_ioctl_command struct @ %p\n",
			ioc->name, __FILE__, __LINE__, mfPtr);
		function = -1;
		rc = -EFAULT;
		goto done_free_mem;
	}
	hdr->MsgContext = cpu_to_le32(msgContext);
	function = hdr->Function;


	/* Verify that this request is allowed.
	 */
	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
	    ioc->name, hdr->Function, mf));

	switch (function) {
	case MPI_FUNCTION_IOC_FACTS:
	case MPI_FUNCTION_PORT_FACTS:
		karg.dataOutSize  = karg.dataInSize = 0;
		break;

	case MPI_FUNCTION_CONFIG:
	{
		Config_t *config_frame;
		config_frame = (Config_t *)mf;
		dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
		    "number=0x%02x action=0x%02x\n", ioc->name,
		    config_frame->Header.PageType,
		    config_frame->ExtPageType,
		    config_frame->Header.PageNumber,
		    config_frame->Action));
		break;
	}

	case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
	case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
	case MPI_FUNCTION_FW_UPLOAD:
	case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
	case MPI_FUNCTION_FW_DOWNLOAD:
	case MPI_FUNCTION_FC_PRIMITIVE_SEND:
	case MPI_FUNCTION_TOOLBOX:
	case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
		break;

	case MPI_FUNCTION_SCSI_IO_REQUEST:
		if (ioc->sh) {
			SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
			int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
			int scsidir = 0;
			int dataSize;
			u32 id;

			id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
			if (pScsiReq->TargetID > id) {
				printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
					"Target ID out of bounds. \n",
					ioc->name, __FILE__, __LINE__);
				rc = -ENODEV;
				goto done_free_mem;
			}

			if (pScsiReq->Bus >= ioc->number_of_buses) {
				printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
					"Target Bus out of bounds. \n",
					ioc->name, __FILE__, __LINE__);
				rc = -ENODEV;
				goto done_free_mem;
			}

			pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
			pScsiReq->MsgFlags |= mpt_msg_flags(ioc);


			/* verify that app has not requested
			 *	more sense data than driver
			 *	can provide, if so, reset this parameter
			 * set the sense buffer pointer low address
			 * update the control field to specify Q type
			 */
			if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
				pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
			else
				pScsiReq->SenseBufferLength = karg.maxSenseBytes;

			pScsiReq->SenseBufferLowAddr =
				cpu_to_le32(ioc->sense_buf_low_dma
				   + (req_idx * MPT_SENSE_BUFFER_ALLOC));

			shost_for_each_device(sdev, ioc->sh) {
				struct scsi_target *starget = scsi_target(sdev);
				VirtTarget *vtarget = starget->hostdata;

				if (vtarget == NULL)
					continue;

				if ((pScsiReq->TargetID == vtarget->id) &&
				    (pScsiReq->Bus == vtarget->channel) &&
				    (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
					qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
			}

			/* Have the IOCTL driver set the direction based
			 * on the dataOutSize (ordering issue with Sparc).
			 */
			if (karg.dataOutSize > 0) {
				scsidir = MPI_SCSIIO_CONTROL_WRITE;
				dataSize = karg.dataOutSize;
			} else {
				scsidir = MPI_SCSIIO_CONTROL_READ;
				dataSize = karg.dataInSize;
			}

			pScsiReq->Control = cpu_to_le32(scsidir | qtag);
			pScsiReq->DataLength = cpu_to_le32(dataSize);


		} else {
			printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
				"SCSI driver is not loaded. \n",
				ioc->name, __FILE__, __LINE__);
			rc = -EFAULT;
			goto done_free_mem;
		}
		break;

	case MPI_FUNCTION_SMP_PASSTHROUGH:
		/* Check mf->PassthruFlags to determine if
		 * transfer is ImmediateMode or not.
		 * Immediate mode returns data in the ReplyFrame.
		 * Else, we are sending request and response data
		 * in two SGLs at the end of the mf.
		 */
		break;

	case MPI_FUNCTION_SATA_PASSTHROUGH:
		if (!ioc->sh) {
			printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
				"SCSI driver is not loaded. \n",
				ioc->name, __FILE__, __LINE__);
			rc = -EFAULT;
			goto done_free_mem;
		}
		break;

	case MPI_FUNCTION_RAID_ACTION:
		/* Just add a SGE
		 */
		break;

	case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
		if (ioc->sh) {
			SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
			int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
			int scsidir = MPI_SCSIIO_CONTROL_READ;
			int dataSize;

			pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
			pScsiReq->MsgFlags |= mpt_msg_flags(ioc);


			/* verify that app has not requested
			 *	more sense data than driver
			 *	can provide, if so, reset this parameter
			 * set the sense buffer pointer low address
			 * update the control field to specify Q type
			 */
			if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
				pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
			else
				pScsiReq->SenseBufferLength = karg.maxSenseBytes;

			pScsiReq->SenseBufferLowAddr =
				cpu_to_le32(ioc->sense_buf_low_dma
				   + (req_idx * MPT_SENSE_BUFFER_ALLOC));

			/* All commands to physical devices are tagged
			 */

			/* Have the IOCTL driver set the direction based
			 * on the dataOutSize (ordering issue with Sparc).
			 */
			if (karg.dataOutSize > 0) {
				scsidir = MPI_SCSIIO_CONTROL_WRITE;
				dataSize = karg.dataOutSize;
			} else {
				scsidir = MPI_SCSIIO_CONTROL_READ;
				dataSize = karg.dataInSize;
			}

			pScsiReq->Control = cpu_to_le32(scsidir | qtag);
			pScsiReq->DataLength = cpu_to_le32(dataSize);

		} else {
			printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
				"SCSI driver is not loaded. \n",
				ioc->name, __FILE__, __LINE__);
			rc = -EFAULT;
			goto done_free_mem;
		}
		break;

	case MPI_FUNCTION_SCSI_TASK_MGMT:
	{
		SCSITaskMgmt_t	*pScsiTm;
		pScsiTm = (SCSITaskMgmt_t *)mf;
		dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			"\tTaskType=0x%x MsgFlags=0x%x "
			"TaskMsgContext=0x%x id=%d channel=%d\n",
			ioc->name, pScsiTm->TaskType, le32_to_cpu
			(pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
			pScsiTm->TargetID, pScsiTm->Bus));
		break;
	}

	case MPI_FUNCTION_IOC_INIT:
		{
			IOCInit_t	*pInit = (IOCInit_t *) mf;
			u32		high_addr, sense_high;

			/* Verify that all entries in the IOC INIT match
			 * existing setup (and in LE format).
			 */
			if (sizeof(dma_addr_t) == sizeof(u64)) {
				high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
				sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
			} else {
				high_addr = 0;
				sense_high= 0;
			}

			if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
				(pInit->MaxBuses != ioc->facts.MaxBuses) ||
				(pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
				(pInit->HostMfaHighAddr != high_addr) ||
				(pInit->SenseBufferHighAddr != sense_high)) {
				printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
					"IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
					ioc->name, __FILE__, __LINE__);
				rc = -EFAULT;
				goto done_free_mem;
			}
		}
		break;
	default:
		/*
		 * MPI_FUNCTION_PORT_ENABLE
		 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
		 * MPI_FUNCTION_TARGET_ASSIST
		 * MPI_FUNCTION_TARGET_STATUS_SEND
		 * MPI_FUNCTION_TARGET_MODE_ABORT
		 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
		 * MPI_FUNCTION_IO_UNIT_RESET
		 * MPI_FUNCTION_HANDSHAKE
		 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
		 * MPI_FUNCTION_EVENT_NOTIFICATION
		 *  (driver handles event notification)
		 * MPI_FUNCTION_EVENT_ACK
		 */

		/*  What to do with these???  CHECK ME!!!
			MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
			MPI_FUNCTION_FC_LINK_SRVC_RSP
			MPI_FUNCTION_FC_ABORT
			MPI_FUNCTION_LAN_SEND
			MPI_FUNCTION_LAN_RECEIVE
		 	MPI_FUNCTION_LAN_RESET
		*/

		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
			"Illegal request (function 0x%x) \n",
			ioc->name, __FILE__, __LINE__, hdr->Function);
		rc = -EFAULT;
		goto done_free_mem;
	}

	/* Add the SGL ( at most one data in SGE and one data out SGE )
	 * In the case of two SGE's - the data out (write) will always
	 * preceede the data in (read) SGE. psgList is used to free the
	 * allocated memory.
	 */
	psge = (char *) (((int *) mf) + karg.dataSgeOffset);
	flagsLength = 0;

	if (karg.dataOutSize > 0)
		sgSize ++;

	if (karg.dataInSize > 0)
		sgSize ++;

	if (sgSize > 0) {

		/* Set up the dataOut memory allocation */
		if (karg.dataOutSize > 0) {
			if (karg.dataInSize > 0) {
				flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
						MPI_SGE_FLAGS_END_OF_BUFFER |
						MPI_SGE_FLAGS_DIRECTION)
						<< MPI_SGE_FLAGS_SHIFT;
			} else {
				flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
			}
			flagsLength |= karg.dataOutSize;
			bufOut.len = karg.dataOutSize;
			bufOut.kptr = pci_alloc_consistent(
					ioc->pcidev, bufOut.len, &dma_addr_out);

			if (bufOut.kptr == NULL) {
				rc = -ENOMEM;
				goto done_free_mem;
			} else {
				/* Set up this SGE.
				 * Copy to MF and to sglbuf
				 */
				ioc->add_sge(psge, flagsLength, dma_addr_out);
				psge += ioc->SGE_size;

				/* Copy user data to kernel space.
				 */
				if (copy_from_user(bufOut.kptr,
						karg.dataOutBufPtr,
						bufOut.len)) {
					printk(MYIOC_s_ERR_FMT
						"%s@%d::mptctl_do_mpt_command - Unable "
						"to read user data "
						"struct @ %p\n",
						ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
					rc =  -EFAULT;
					goto done_free_mem;
				}
			}
		}

		if (karg.dataInSize > 0) {
			flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
			flagsLength |= karg.dataInSize;

			bufIn.len = karg.dataInSize;
			bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
					bufIn.len, &dma_addr_in);

			if (bufIn.kptr == NULL) {
				rc = -ENOMEM;
				goto done_free_mem;
			} else {
				/* Set up this SGE
				 * Copy to MF and to sglbuf
				 */
				ioc->add_sge(psge, flagsLength, dma_addr_in);
			}
		}
	} else  {
		/* Add a NULL SGE
		 */
		ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
	}

	SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
	INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
	if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {

		mutex_lock(&ioc->taskmgmt_cmds.mutex);
		if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
			mutex_unlock(&ioc->taskmgmt_cmds.mutex);
			goto done_free_mem;
		}

		DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);

		if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
		    (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
			mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
		else {
			rc =mpt_send_handshake_request(mptctl_id, ioc,
				sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
			if (rc != 0) {
				dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
				    "send_handshake FAILED! (ioc %p, mf %p)\n",
				    ioc->name, ioc, mf));
				mpt_clear_taskmgmt_in_progress_flag(ioc);
				rc = -ENODATA;
				mutex_unlock(&ioc->taskmgmt_cmds.mutex);
				goto done_free_mem;
			}
		}

	} else
		mpt_put_msg_frame(mptctl_id, ioc, mf);

	/* Now wait for the command to complete */
	timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
retry_wait:
	timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
				HZ*timeout);
	if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
		rc = -ETIME;
		dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
		    ioc->name, __func__));
		if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
			if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
				mutex_unlock(&ioc->taskmgmt_cmds.mutex);
			goto done_free_mem;
		}
		if (!timeleft) {
			printk(MYIOC_s_WARN_FMT
			       "mpt cmd timeout, doorbell=0x%08x"
			       " function=0x%x\n",
			       ioc->name, mpt_GetIocState(ioc, 0), function);
			if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
				mutex_unlock(&ioc->taskmgmt_cmds.mutex);
			mptctl_timeout_expired(ioc, mf);
			mf = NULL;
		} else
			goto retry_wait;
		goto done_free_mem;
	}

	if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
		mutex_unlock(&ioc->taskmgmt_cmds.mutex);


	mf = NULL;

	/* If a valid reply frame, copy to the user.
	 * Offset 2: reply length in U32's
	 */
	if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
		if (karg.maxReplyBytes < ioc->reply_sz) {
			sz = min(karg.maxReplyBytes,
				4*ioc->ioctl_cmds.reply[2]);
		} else {
			 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
		}
		if (sz > 0) {
			if (copy_to_user(karg.replyFrameBufPtr,
				 ioc->ioctl_cmds.reply, sz)){
				 printk(MYIOC_s_ERR_FMT
				     "%s@%d::mptctl_do_mpt_command - "
				 "Unable to write out reply frame %p\n",
				 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
				 rc =  -ENODATA;
				 goto done_free_mem;
			}
		}
	}

	/* If valid sense data, copy to user.
	 */
	if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
		sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
		if (sz > 0) {
			if (copy_to_user(karg.senseDataPtr,
				ioc->ioctl_cmds.sense, sz)) {
				printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
				"Unable to write sense data to user %p\n",
				ioc->name, __FILE__, __LINE__,
				karg.senseDataPtr);
				rc =  -ENODATA;
				goto done_free_mem;
			}
		}
	}

	/* If the overall status is _GOOD and data in, copy data
	 * to user.
	 */
	if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
				(karg.dataInSize > 0) && (bufIn.kptr)) {

		if (copy_to_user(karg.dataInBufPtr,
				 bufIn.kptr, karg.dataInSize)) {
			printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
				"Unable to write data to user %p\n",
				ioc->name, __FILE__, __LINE__,
				karg.dataInBufPtr);
			rc =  -ENODATA;
		}
	}

done_free_mem:

	CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
	SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);

	/* Free the allocated memory.
	 */
	if (bufOut.kptr != NULL) {
		pci_free_consistent(ioc->pcidev,
			bufOut.len, (void *) bufOut.kptr, dma_addr_out);
	}

	if (bufIn.kptr != NULL) {
		pci_free_consistent(ioc->pcidev,
			bufIn.len, (void *) bufIn.kptr, dma_addr_in);
	}

	/* mf is null if command issued successfully
	 * otherwise, failure occurred after mf acquired.
	 */
	if (mf)
		mpt_free_msg_frame(ioc, mf);

	return rc;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* Prototype Routine for the HOST INFO command.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-EBUSY  if previous command timeout and IOC reset is not complete.
 *		-ENODEV if no such device/adapter
 *		-ETIME	if timer expires
 *		-ENOMEM if memory allocation error
 */
static int
mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
{
	hp_host_info_t	__user *uarg = (void __user *) arg;
	MPT_ADAPTER		*ioc;
	struct pci_dev		*pdev;
	char                    *pbuf=NULL;
	dma_addr_t		buf_dma;
	hp_host_info_t		karg;
	CONFIGPARMS		cfg;
	ConfigPageHeader_t	hdr;
	int			iocnum;
	int			rc, cim_rev;
	ToolboxIstwiReadWriteRequest_t	*IstwiRWRequest;
	MPT_FRAME_HDR		*mf = NULL;
	MPIHeader_t		*mpi_hdr;
	unsigned long		timeleft;
	int			retval;

	/* Reset long to int. Should affect IA64 and SPARC only
	 */
	if (data_size == sizeof(hp_host_info_t))
		cim_rev = 1;
	else if (data_size == sizeof(hp_host_info_rev0_t))
		cim_rev = 0;	/* obsolete */
	else
		return -EFAULT;

	if (copy_from_user(&karg, uarg, sizeof(hp_host_info_t))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_host_info - "
			"Unable to read in hp_host_info struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
	    (ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_hp_hostinfo() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}
	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": mptctl_hp_hostinfo called.\n",
	    ioc->name));

	/* Fill in the data and return the structure to the calling
	 * program
	 */
	pdev = (struct pci_dev *) ioc->pcidev;

	karg.vendor = pdev->vendor;
	karg.device = pdev->device;
	karg.subsystem_id = pdev->subsystem_device;
	karg.subsystem_vendor = pdev->subsystem_vendor;
	karg.devfn = pdev->devfn;
	karg.bus = pdev->bus->number;

	/* Save the SCSI host no. if
	 * SCSI driver loaded
	 */
	if (ioc->sh != NULL)
		karg.host_no = ioc->sh->host_no;
	else
		karg.host_no =  -1;

	/* Reformat the fw_version into a string
	 */
	karg.fw_version[0] = ioc->facts.FWVersion.Struct.Major >= 10 ?
		((ioc->facts.FWVersion.Struct.Major / 10) + '0') : '0';
	karg.fw_version[1] = (ioc->facts.FWVersion.Struct.Major % 10 ) + '0';
	karg.fw_version[2] = '.';
	karg.fw_version[3] = ioc->facts.FWVersion.Struct.Minor >= 10 ?
		((ioc->facts.FWVersion.Struct.Minor / 10) + '0') : '0';
	karg.fw_version[4] = (ioc->facts.FWVersion.Struct.Minor % 10 ) + '0';
	karg.fw_version[5] = '.';
	karg.fw_version[6] = ioc->facts.FWVersion.Struct.Unit >= 10 ?
		((ioc->facts.FWVersion.Struct.Unit / 10) + '0') : '0';
	karg.fw_version[7] = (ioc->facts.FWVersion.Struct.Unit % 10 ) + '0';
	karg.fw_version[8] = '.';
	karg.fw_version[9] = ioc->facts.FWVersion.Struct.Dev >= 10 ?
		((ioc->facts.FWVersion.Struct.Dev / 10) + '0') : '0';
	karg.fw_version[10] = (ioc->facts.FWVersion.Struct.Dev % 10 ) + '0';
	karg.fw_version[11] = '\0';

	/* Issue a config request to get the device serial number
	 */
	hdr.PageVersion = 0;
	hdr.PageLength = 0;
	hdr.PageNumber = 0;
	hdr.PageType = MPI_CONFIG_PAGETYPE_MANUFACTURING;
	cfg.cfghdr.hdr = &hdr;
	cfg.physAddr = -1;
	cfg.pageAddr = 0;
	cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
	cfg.dir = 0;	/* read */
	cfg.timeout = 10;

	strncpy(karg.serial_number, " ", 24);
	if (mpt_config(ioc, &cfg) == 0) {
		if (cfg.cfghdr.hdr->PageLength > 0) {
			/* Issue the second config page request */
			cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;

			pbuf = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, &buf_dma);
			if (pbuf) {
				cfg.physAddr = buf_dma;
				if (mpt_config(ioc, &cfg) == 0) {
					ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf;
					if (strlen(pdata->BoardTracerNumber) > 1) {
						strncpy(karg.serial_number, 									    pdata->BoardTracerNumber, 24);
						karg.serial_number[24-1]='\0';
					}
				}
				pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, pbuf, buf_dma);
				pbuf = NULL;
			}
		}
	}
	rc = mpt_GetIocState(ioc, 1);
	switch (rc) {
	case MPI_IOC_STATE_OPERATIONAL:
		karg.ioc_status =  HP_STATUS_OK;
		break;

	case MPI_IOC_STATE_FAULT:
		karg.ioc_status =  HP_STATUS_FAILED;
		break;

	case MPI_IOC_STATE_RESET:
	case MPI_IOC_STATE_READY:
	default:
		karg.ioc_status =  HP_STATUS_OTHER;
		break;
	}

	karg.base_io_addr = pci_resource_start(pdev, 0);

	if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
		karg.bus_phys_width = HP_BUS_WIDTH_UNK;
	else
		karg.bus_phys_width = HP_BUS_WIDTH_16;

	karg.hard_resets = 0;
	karg.soft_resets = 0;
	karg.timeouts = 0;
	if (ioc->sh != NULL) {
		MPT_SCSI_HOST *hd =  shost_priv(ioc->sh);

		if (hd && (cim_rev == 1)) {
			karg.hard_resets = ioc->hard_resets;
			karg.soft_resets = ioc->soft_resets;
			karg.timeouts = ioc->timeouts;
		}
	}

	/* 
	 * Gather ISTWI(Industry Standard Two Wire Interface) Data
	 */
	if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
		dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
			"%s, no msg frames!!\n", ioc->name, __func__));
		goto out;
	}

	IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
	mpi_hdr = (MPIHeader_t *) mf;
	memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
	IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
	IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
	IstwiRWRequest->MsgContext = mpi_hdr->MsgContext;
	IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
	IstwiRWRequest->NumAddressBytes = 0x01;
	IstwiRWRequest->DataLength = cpu_to_le16(0x04);
	if (pdev->devfn & 1)
		IstwiRWRequest->DeviceAddr = 0xB2;
	else
		IstwiRWRequest->DeviceAddr = 0xB0;

	pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma);
	if (!pbuf)
		goto out;
	ioc->add_sge((char *)&IstwiRWRequest->SGL,
	    (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma);

	retval = 0;
	SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context,
				IstwiRWRequest->MsgContext);
	INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
	mpt_put_msg_frame(mptctl_id, ioc, mf);

retry_wait:
	timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
			HZ*MPT_IOCTL_DEFAULT_TIMEOUT);
	if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
		retval = -ETIME;
		printk(MYIOC_s_WARN_FMT "%s: failed\n", ioc->name, __func__);
		if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
			mpt_free_msg_frame(ioc, mf);
			goto out;
		}
		if (!timeleft) {
			printk(MYIOC_s_WARN_FMT
			       "HOST INFO command timeout, doorbell=0x%08x\n",
			       ioc->name, mpt_GetIocState(ioc, 0));
			mptctl_timeout_expired(ioc, mf);
		} else
			goto retry_wait;
		goto out;
	}

	/*
	 *ISTWI Data Definition
	 * pbuf[0] = FW_VERSION = 0x4
	 * pbuf[1] = Bay Count = 6 or 4 or 2, depending on
	 *  the config, you should be seeing one out of these three values
	 * pbuf[2] = Drive Installed Map = bit pattern depend on which
	 *   bays have drives in them
	 * pbuf[3] = Checksum (0x100 = (byte0 + byte2 + byte3)
	 */
	if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID)
		karg.rsvd = *(u32 *)pbuf;

 out:
	CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
	SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);

	if (pbuf)
		pci_free_consistent(ioc->pcidev, 4, pbuf, buf_dma);

	/* Copy the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, &karg, sizeof(hp_host_info_t))) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hpgethostinfo - "
			"Unable to write out hp_host_info @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	return 0;

}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* Prototype Routine for the TARGET INFO command.
 *
 * Outputs:	None.
 * Return:	0 if successful
 *		-EFAULT if data unavailable
 *		-EBUSY  if previous command timeout and IOC reset is not complete.
 *		-ENODEV if no such device/adapter
 *		-ETIME	if timer expires
 *		-ENOMEM if memory allocation error
 */
static int
mptctl_hp_targetinfo(unsigned long arg)
{
	hp_target_info_t __user *uarg = (void __user *) arg;
	SCSIDevicePage0_t	*pg0_alloc;
	SCSIDevicePage3_t	*pg3_alloc;
	MPT_ADAPTER		*ioc;
	MPT_SCSI_HOST 		*hd = NULL;
	hp_target_info_t	karg;
	int			iocnum;
	int			data_sz;
	dma_addr_t		page_dma;
	CONFIGPARMS	 	cfg;
	ConfigPageHeader_t	hdr;
	int			tmp, np, rc = 0;

	if (copy_from_user(&karg, uarg, sizeof(hp_target_info_t))) {
		printk(KERN_ERR MYNAM "%s@%d::mptctl_hp_targetinfo - "
			"Unable to read in hp_host_targetinfo struct @ %p\n",
				__FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
		(ioc == NULL)) {
		printk(KERN_DEBUG MYNAM "%s::mptctl_hp_targetinfo() @%d - ioc%d not found!\n",
				__FILE__, __LINE__, iocnum);
		return -ENODEV;
	}
	dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
	    ioc->name));

	/*  There is nothing to do for FCP parts.
	 */
	if ((ioc->bus_type == SAS) || (ioc->bus_type == FC))
		return 0;

	if ((ioc->spi_data.sdp0length == 0) || (ioc->sh == NULL))
		return 0;

	if (ioc->sh->host_no != karg.hdr.host)
		return -ENODEV;

       /* Get the data transfer speeds
        */
	data_sz = ioc->spi_data.sdp0length * 4;
	pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma);
	if (pg0_alloc) {
		hdr.PageVersion = ioc->spi_data.sdp0version;
		hdr.PageLength = data_sz;
		hdr.PageNumber = 0;
		hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;

		cfg.cfghdr.hdr = &hdr;
		cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
		cfg.dir = 0;
		cfg.timeout = 0;
		cfg.physAddr = page_dma;

		cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;

		if ((rc = mpt_config(ioc, &cfg)) == 0) {
			np = le32_to_cpu(pg0_alloc->NegotiatedParameters);
			karg.negotiated_width = np & MPI_SCSIDEVPAGE0_NP_WIDE ?
					HP_BUS_WIDTH_16 : HP_BUS_WIDTH_8;

			if (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) {
				tmp = (np & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
				if (tmp < 0x09)
					karg.negotiated_speed = HP_DEV_SPEED_ULTRA320;
				else if (tmp <= 0x09)
					karg.negotiated_speed = HP_DEV_SPEED_ULTRA160;
				else if (tmp <= 0x0A)
					karg.negotiated_speed = HP_DEV_SPEED_ULTRA2;
				else if (tmp <= 0x0C)
					karg.negotiated_speed = HP_DEV_SPEED_ULTRA;
				else if (tmp <= 0x25)
					karg.negotiated_speed = HP_DEV_SPEED_FAST;
				else
					karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
			} else
				karg.negotiated_speed = HP_DEV_SPEED_ASYNC;
		}

		pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg0_alloc, page_dma);
	}

	/* Set defaults
	 */
	karg.message_rejects = -1;
	karg.phase_errors = -1;
	karg.parity_errors = -1;
	karg.select_timeouts = -1;

	/* Get the target error parameters
	 */
	hdr.PageVersion = 0;
	hdr.PageLength = 0;
	hdr.PageNumber = 3;
	hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;

	cfg.cfghdr.hdr = &hdr;
	cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
	cfg.dir = 0;
	cfg.timeout = 0;
	cfg.physAddr = -1;
	if ((mpt_config(ioc, &cfg) == 0) && (cfg.cfghdr.hdr->PageLength > 0)) {
		/* Issue the second config page request */
		cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
		data_sz = (int) cfg.cfghdr.hdr->PageLength * 4;
		pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent(
							ioc->pcidev, data_sz, &page_dma);
		if (pg3_alloc) {
			cfg.physAddr = page_dma;
			cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id;
			if ((rc = mpt_config(ioc, &cfg)) == 0) {
				karg.message_rejects = (u32) le16_to_cpu(pg3_alloc->MsgRejectCount);
				karg.phase_errors = (u32) le16_to_cpu(pg3_alloc->PhaseErrorCount);
				karg.parity_errors = (u32) le16_to_cpu(pg3_alloc->ParityErrorCount);
			}
			pci_free_consistent(ioc->pcidev, data_sz, (u8 *) pg3_alloc, page_dma);
		}
	}
	hd = shost_priv(ioc->sh);
	if (hd != NULL)
		karg.select_timeouts = hd->sel_timeout[karg.hdr.id];

	/* Copy the data from kernel memory to user memory
	 */
	if (copy_to_user((char __user *)arg, &karg, sizeof(hp_target_info_t))) {
		printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_hp_target_info - "
			"Unable to write out mpt_ioctl_targetinfo struct @ %p\n",
			ioc->name, __FILE__, __LINE__, uarg);
		return -EFAULT;
	}

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

static const struct file_operations mptctl_fops = {
	.owner =	THIS_MODULE,
	.llseek =	no_llseek,
	.fasync = 	mptctl_fasync,
	.unlocked_ioctl = mptctl_ioctl,
#ifdef CONFIG_COMPAT
	.compat_ioctl = compat_mpctl_ioctl,
#endif
};

static struct miscdevice mptctl_miscdev = {
	MPT_MINOR,
	MYNAM,
	&mptctl_fops
};

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#ifdef CONFIG_COMPAT

static int
compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
			unsigned long arg)
{
	struct mpt_fw_xfer32 kfw32;
	struct mpt_fw_xfer kfw;
	MPT_ADAPTER *iocp = NULL;
	int iocnum, iocnumX;
	int nonblock = (filp->f_flags & O_NONBLOCK);
	int ret;


	if (copy_from_user(&kfw32, (char __user *)arg, sizeof(kfw32)))
		return -EFAULT;

	/* Verify intended MPT adapter */
	iocnumX = kfw32.iocnum & 0xFF;
	if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
	    (iocp == NULL)) {
		printk(KERN_DEBUG MYNAM "::compat_mptfwxfer_ioctl @%d - ioc%d not found!\n",
			__LINE__, iocnumX);
		return -ENODEV;
	}

	if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
		return ret;

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mptfwxfer_ioctl() called\n",
	    iocp->name));
	kfw.iocnum = iocnum;
	kfw.fwlen = kfw32.fwlen;
	kfw.bufp = compat_ptr(kfw32.bufp);

	ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);

	mutex_unlock(&iocp->ioctl_cmds.mutex);

	return ret;
}

static int
compat_mpt_command(struct file *filp, unsigned int cmd,
			unsigned long arg)
{
	struct mpt_ioctl_command32 karg32;
	struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
	struct mpt_ioctl_command karg;
	MPT_ADAPTER *iocp = NULL;
	int iocnum, iocnumX;
	int nonblock = (filp->f_flags & O_NONBLOCK);
	int ret;

	if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
		return -EFAULT;

	/* Verify intended MPT adapter */
	iocnumX = karg32.hdr.iocnum & 0xFF;
	if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
	    (iocp == NULL)) {
		printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
			__LINE__, iocnumX);
		return -ENODEV;
	}

	if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
		return ret;

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
	    iocp->name));
	/* Copy data to karg */
	karg.hdr.iocnum = karg32.hdr.iocnum;
	karg.hdr.port = karg32.hdr.port;
	karg.timeout = karg32.timeout;
	karg.maxReplyBytes = karg32.maxReplyBytes;

	karg.dataInSize = karg32.dataInSize;
	karg.dataOutSize = karg32.dataOutSize;
	karg.maxSenseBytes = karg32.maxSenseBytes;
	karg.dataSgeOffset = karg32.dataSgeOffset;

	karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
	karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
	karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
	karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;

	/* Pass new structure to do_mpt_command
	 */
	ret = mptctl_do_mpt_command (karg, &uarg->MF);

	mutex_unlock(&iocp->ioctl_cmds.mutex);

	return ret;
}

static long compat_mpctl_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
{
	long ret;
	mutex_lock(&mpctl_mutex);
	switch (cmd) {
	case MPTIOCINFO:
	case MPTIOCINFO1:
	case MPTIOCINFO2:
	case MPTTARGETINFO:
	case MPTEVENTQUERY:
	case MPTEVENTENABLE:
	case MPTEVENTREPORT:
	case MPTHARDRESET:
	case HP_GETHOSTINFO:
	case HP_GETTARGETINFO:
	case MPTTEST:
		ret = __mptctl_ioctl(f, cmd, arg);
		break;
	case MPTCOMMAND32:
		ret = compat_mpt_command(f, cmd, arg);
		break;
	case MPTFWDOWNLOAD32:
		ret = compat_mptfwxfer_ioctl(f, cmd, arg);
		break;
	default:
		ret = -ENOIOCTLCMD;
		break;
	}
	mutex_unlock(&mpctl_mutex);
	return ret;
}

#endif


/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptctl_probe - Installs ioctl devices per bus.
 *	@pdev: Pointer to pci_dev structure
 *
 *	Returns 0 for success, non-zero for failure.
 *
 */

static int
mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);

	mutex_init(&ioc->ioctl_cmds.mutex);
	init_completion(&ioc->ioctl_cmds.done);
	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptctl_remove - Removed ioctl devices
 *	@pdev: Pointer to pci_dev structure
 *
 *
 */
static void
mptctl_remove(struct pci_dev *pdev)
{
}

static struct mpt_pci_driver mptctl_driver = {
  .probe		= mptctl_probe,
  .remove		= mptctl_remove,
};

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
static int __init mptctl_init(void)
{
	int err;
	int where = 1;

	show_mptmod_ver(my_NAME, my_VERSION);

	mpt_device_driver_register(&mptctl_driver, MPTCTL_DRIVER);

	/* Register this device */
	err = misc_register(&mptctl_miscdev);
	if (err < 0) {
		printk(KERN_ERR MYNAM ": Can't register misc device [minor=%d].\n", MPT_MINOR);
		goto out_fail;
	}
	printk(KERN_INFO MYNAM ": Registered with Fusion MPT base driver\n");
	printk(KERN_INFO MYNAM ": /dev/%s @ (major,minor=%d,%d)\n",
			 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);

	/*
	 *  Install our handler
	 */
	++where;
	mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER,
	    "mptctl_reply");
	if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
		printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
		misc_deregister(&mptctl_miscdev);
		err = -EBUSY;
		goto out_fail;
	}

	mptctl_taskmgmt_id = mpt_register(mptctl_taskmgmt_reply, MPTCTL_DRIVER,
	    "mptctl_taskmgmt_reply");
	if (!mptctl_taskmgmt_id || mptctl_taskmgmt_id >= MPT_MAX_PROTOCOL_DRIVERS) {
		printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
		mpt_deregister(mptctl_id);
		misc_deregister(&mptctl_miscdev);
		err = -EBUSY;
		goto out_fail;
	}

	mpt_reset_register(mptctl_id, mptctl_ioc_reset);
	mpt_event_register(mptctl_id, mptctl_event_process);

	return 0;

out_fail:

	mpt_device_driver_deregister(MPTCTL_DRIVER);

	return err;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
static void mptctl_exit(void)
{
	misc_deregister(&mptctl_miscdev);
	printk(KERN_INFO MYNAM ": Deregistered /dev/%s @ (major,minor=%d,%d)\n",
			 mptctl_miscdev.name, MISC_MAJOR, mptctl_miscdev.minor);

	/* De-register event handler from base module */
	mpt_event_deregister(mptctl_id);

	/* De-register reset handler from base module */
	mpt_reset_deregister(mptctl_id);

	/* De-register callback handler from base module */
	mpt_deregister(mptctl_taskmgmt_id);
	mpt_deregister(mptctl_id);

        mpt_device_driver_deregister(MPTCTL_DRIVER);

}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

module_init(mptctl_init);
module_exit(mptctl_exit);