Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 | /********************************************************************** * iph5526.c: IP/SCSI driver for the Interphase 5526 PCI Fibre Channel * Card. * Copyright (C) 1999 Vineet M Abraham <vma@iol.unh.edu> * * 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; either version 2, or * (at your option) any later version. * * 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. *********************************************************************/ /********************************************************************** Log: Vineet M Abraham 02.12.99 Support multiple cards. 03.15.99 Added Fabric support. 04.04.99 Added N_Port support. 04.15.99 Added SCSI support. 06.18.99 Added ABTS Protocol. 06.24.99 Fixed data corruption when multiple XFER_RDYs are received. 07.07.99 Can be loaded as part of the Kernel. Changed semaphores. Added more checks before invalidating SEST entries. 07.08.99 Added Broadcast IP stuff and fixed an unicast timeout bug. ***********************************************************************/ /* TODO: R_T_TOV set to 15msec in Loop topology. Need to be 100 msec. SMP testing. Fix ADISC Tx before completing FLOGI. */ static const char *version = "iph5526.c:v1.0 07.08.99 Vineet Abraham (vma@iol.unh.edu)\n"; #include <linux/module.h> #include <linux/config.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/errno.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/mm.h> #include <linux/delay.h> #include <linux/skbuff.h> #include <linux/if_arp.h> #include <linux/timer.h> #include <linux/spinlock.h> #include <asm/system.h> #include <asm/io.h> #include <linux/netdevice.h> #include <linux/fcdevice.h> /* had the declarations for init_fcdev among others + includes if_fcdevice.h */ #include <linux/blk.h> #include "../../scsi/sd.h" #include "../../scsi/scsi.h" #include "../../scsi/hosts.h" #include "../../fc4/fcp.h" /* driver specific header files */ #include "tach.h" #include "tach_structs.h" #include "iph5526_ip.h" #include "iph5526_scsi.h" #include "iph5526_novram.c" #define RUN_AT(x) (jiffies + (x)) #define DEBUG_5526_0 0 #define DEBUG_5526_1 0 #define DEBUG_5526_2 0 #if DEBUG_5526_0 #define DPRINTK(format, a...) {printk("%s: ", fi->name); \ printk(format, ##a); \ printk("\n");} #define ENTER(x) {printk("%s: ", fi->name); \ printk("iph5526.c : entering %s()\n", x);} #define LEAVE(x) {printk("%s: ", fi->name); \ printk("iph5526.c : leaving %s()\n",x);} #else #define DPRINTK(format, a...) {} #define ENTER(x) {} #define LEAVE(x) {} #endif #if DEBUG_5526_1 #define DPRINTK1(format, a...) {printk("%s: ", fi->name); \ printk(format, ##a); \ printk("\n");} #else #define DPRINTK1(format, a...) {} #endif #if DEBUG_5526_2 #define DPRINTK2(format, a...) {printk("%s: ", fi->name); \ printk(format, ##a); \ printk("\n");} #else #define DPRINTK2(format, a...) {} #endif #define T_MSG(format, a...) {printk("%s: ", fi->name); \ printk(format, ##a);\ printk("\n");} #define ALIGNED_SFS_ADDR(addr) ((((unsigned long)(addr) + (SFS_BUFFER_SIZE - 1)) & ~(SFS_BUFFER_SIZE - 1)) - (unsigned long)(addr)) #define ALIGNED_ADDR(addr, len) ((((unsigned long)(addr) + (len - 1)) & ~(len - 1)) - (unsigned long)(addr)) #define MAX_FC_CARDS 2 static struct fc_info *fc[MAX_FC_CARDS+1]; static unsigned int pci_irq_line = 0; static struct { unsigned short vendor_id; unsigned short device_id; char *name; } clone_list[] __initdata = { {PCI_VENDOR_ID_INTERPHASE, PCI_DEVICE_ID_INTERPHASE_5526, "Interphase Fibre Channel HBA"}, {PCI_VENDOR_ID_INTERPHASE, PCI_DEVICE_ID_INTERPHASE_55x6, "Interphase Fibre Channel HBA"}, {0,} }; static void tachyon_interrupt(int irq, void *dev_id, struct pt_regs *regs); static void tachyon_interrupt_handler(int irq, void* dev_id, struct pt_regs* regs); static int initialize_register_pointers(struct fc_info *fi); void clean_up_memory(struct fc_info *fi); static int tachyon_init(struct fc_info *fi); static int build_queues(struct fc_info *fi); static void build_tachyon_header(struct fc_info *fi, u_int my_id, u_int r_ctl, u_int d_id, u_int type, u_char seq_id, u_char df_ctl, u_short ox_id, u_short rx_id, char *data); static int get_free_header(struct fc_info *fi); static void build_EDB(struct fc_info *fi, char *data, u_short flags, u_short len); static int get_free_EDB(struct fc_info *fi); static void build_ODB(struct fc_info *fi, u_char seq_id, u_int d_id, u_int len, u_int cntl, u_short mtu, u_short ox_id, u_short rx_id, int NW_header, int int_required, u_int frame_class); static void write_to_tachyon_registers(struct fc_info *fi); static void reset_latch(struct fc_info *fi); static void reset_tachyon(struct fc_info *fi, u_int value); static void take_tachyon_offline(struct fc_info *fi); static void read_novram(struct fc_info *fi); static void reset_ichip(struct fc_info *fi); static void update_OCQ_indx(struct fc_info *fi); static void update_IMQ_indx(struct fc_info *fi, int count); static void update_SFSBQ_indx(struct fc_info *fi); static void update_MFSBQ_indx(struct fc_info *fi, int count); static void update_tachyon_header_indx(struct fc_info *fi); static void update_EDB_indx(struct fc_info *fi); static void handle_FM_interrupt(struct fc_info *fi); static void handle_MFS_interrupt(struct fc_info *fi); static void handle_OOO_interrupt(struct fc_info *fi); static void handle_SFS_interrupt(struct fc_info *fi); static void handle_OCI_interrupt(struct fc_info *fi); static void handle_SFS_BUF_WARN_interrupt(struct fc_info *fi); static void handle_MFS_BUF_WARN_interrupt(struct fc_info *fi); static void handle_IMQ_BUF_WARN_interrupt(struct fc_info *fi); static void handle_Unknown_Frame_interrupt(struct fc_info *fi); static void handle_Busied_Frame_interrupt(struct fc_info *fi); static void handle_Bad_SCSI_Frame_interrupt(struct fc_info *fi); static void handle_Inbound_SCSI_Status_interrupt(struct fc_info *fi); static void handle_Inbound_SCSI_Command_interrupt(struct fc_info *fi); static void completion_message_handler(struct fc_info *fi, u_int imq_int_type); static void fill_login_frame(struct fc_info *fi, u_int logi); static int tx_exchange(struct fc_info *fi, char *data, u_int len, u_int r_ctl, u_int type, u_int d_id, u_int mtu, int int_required, u_short ox_id, u_int frame_class); static int tx_sequence(struct fc_info *fi, char *data, u_int len, u_int mtu, u_int d_id, u_short ox_id, u_short rx_id, u_char seq_id, int NW_flag, int int_required, u_int frame_class); static int validate_login(struct fc_info *fi, u_int *base_ptr); static void add_to_address_cache(struct fc_info *fi, u_int *base_ptr); static void remove_from_address_cache(struct fc_info *fi, u_int *data, u_int cmnd_code); static int node_logged_in_prev(struct fc_info *fi, u_int *buff_addr); static int sid_logged_in(struct fc_info *fi, u_int s_id); static struct fc_node_info *look_up_cache(struct fc_info *fi, char *data); static int display_cache(struct fc_info *fi); static void tx_logi(struct fc_info *fi, u_int logi, u_int d_id); static void tx_logi_acc(struct fc_info *fi, u_int logi, u_int d_id, u_short received_ox_id); static void tx_prli(struct fc_info *fi, u_int command_code, u_int d_id, u_short received_ox_id); static void tx_logo(struct fc_info *fi, u_int d_id, u_short received_ox_id); static void tx_adisc(struct fc_info *fi, u_int cmnd_code, u_int d_id, u_short received_ox_id); static void tx_ls_rjt(struct fc_info *fi, u_int d_id, u_short received_ox_id, u_short reason_code, u_short expln_code); static u_int plogi_ok(struct fc_info *fi, u_int *buff_addr, int size); static void tx_acc(struct fc_info *fi, u_int d_id, u_short received_ox_id); static void tx_name_server_req(struct fc_info *fi, u_int req); static void rscn_handler(struct fc_info *fi, u_int node_id); static void tx_scr(struct fc_info *fi); static void scr_timer(unsigned long data); static void explore_fabric(struct fc_info *fi, u_int *buff_addr); static void perform_adisc(struct fc_info *fi); static void local_port_discovery(struct fc_info *fi); static void add_to_ox_id_list(struct fc_info *fi, u_int transaction_id, u_int cmnd_code); static u_int remove_from_ox_id_list(struct fc_info *fi, u_short received_ox_id); static void add_display_cache_timer(struct fc_info *fi); /* Timers... */ static void nos_ols_timer(unsigned long data); static void loop_timer(unsigned long data); static void fabric_explore_timer(unsigned long data); static void port_discovery_timer(unsigned long data); static void display_cache_timer(unsigned long data); /* SCSI Stuff */ static int add_to_sest(struct fc_info *fi, Scsi_Cmnd *Cmnd, struct fc_node_info *ni); static struct fc_node_info *resolve_target(struct fc_info *fi, u_char target); static void update_FCP_CMND_indx(struct fc_info *fi); static int get_free_SDB(struct fc_info *fi); static void update_SDB_indx(struct fc_info *fi); static void mark_scsi_sid(struct fc_info *fi, u_int *buff_addr, u_char action); static void invalidate_SEST_entry(struct fc_info *fi, u_short received_ox_id); static int abort_exchange(struct fc_info *fi, u_short ox_id); static void flush_tachyon_cache(struct fc_info *fi, u_short ox_id); static int get_scsi_oxid(struct fc_info *fi); static void update_scsi_oxid(struct fc_info *fi); Scsi_Host_Template driver_template = IPH5526_SCSI_FC; static void iph5526_timeout(struct net_device *dev); #ifdef CONFIG_PCI static int iph5526_probe_pci(struct net_device *dev); #endif int __init iph5526_probe(struct net_device *dev) { #ifdef CONFIG_PCI if (pci_present() && (iph5526_probe_pci(dev) == 0)) return 0; #endif return -ENODEV; } #ifdef CONFIG_PCI static int __init iph5526_probe_pci(struct net_device *dev) { #ifndef MODULE struct fc_info *fi; static int count = 0; #endif #ifdef MODULE struct fc_info *fi = (struct fc_info *)dev->priv; #endif #ifndef MODULE if(fc[count] != NULL) { if (dev == NULL) { dev = init_fcdev(NULL, 0); if (dev == NULL) return -ENOMEM; } fi = fc[count]; #endif fi->dev = dev; dev->base_addr = fi->base_addr; dev->irq = fi->irq; if (dev->priv == NULL) dev->priv = fi; fcdev_init(dev); /* Assign ur MAC address. */ dev->dev_addr[0] = (fi->g.my_port_name_high & 0x0000FF00) >> 8; dev->dev_addr[1] = fi->g.my_port_name_high; dev->dev_addr[2] = (fi->g.my_port_name_low & 0xFF000000) >> 24; dev->dev_addr[3] = (fi->g.my_port_name_low & 0x00FF0000) >> 16; dev->dev_addr[4] = (fi->g.my_port_name_low & 0x0000FF00) >> 8; dev->dev_addr[5] = fi->g.my_port_name_low; #ifndef MODULE count++; } else return -ENODEV; #endif display_cache(fi); return 0; } #endif /* CONFIG_PCI */ static int __init fcdev_init(struct net_device *dev) { dev->open = iph5526_open; dev->stop = iph5526_close; dev->hard_start_xmit = iph5526_send_packet; dev->get_stats = iph5526_get_stats; dev->set_multicast_list = NULL; dev->change_mtu = iph5526_change_mtu; dev->tx_timeout = iph5526_timeout; dev->watchdog_timeo = 5*HZ; #ifndef MODULE fc_setup(dev); #endif return 0; } /* initialize tachyon and take it OnLine */ static int tachyon_init(struct fc_info *fi) { ENTER("tachyon_init"); if (build_queues(fi) == 0) { T_MSG("build_queues() failed"); return 0; } /* Retrieve your port/node name. */ read_novram(fi); reset_ichip(fi); reset_tachyon(fi, SOFTWARE_RESET); LEAVE("tachyon_init"); return 1; } /* Build the 4 Qs - IMQ, OCQ, MFSBQ, SFSBQ */ /* Lots of dma_pages needed as Tachyon DMAs almost everything into * host memory. */ static int build_queues(struct fc_info *fi) { int i,j; u_char *addr; ENTER("build_queues"); /* Initializing Queue Variables. */ fi->q.ptr_host_ocq_cons_indx = NULL; fi->q.ptr_host_hpcq_cons_indx = NULL; fi->q.ptr_host_imq_prod_indx = NULL; fi->q.ptr_ocq_base = NULL; fi->q.ocq_len = 0; fi->q.ocq_end = 0; fi->q.ocq_prod_indx = 0; fi->q.ptr_imq_base = NULL; fi->q.imq_len = 0; fi->q.imq_end = 0; fi->q.imq_cons_indx = 0; fi->q.imq_prod_indx = 0; fi->q.ptr_mfsbq_base = NULL; fi->q.mfsbq_len = 0; fi->q.mfsbq_end = 0; fi->q.mfsbq_prod_indx = 0; fi->q.mfsbq_cons_indx = 0; fi->q.mfsbuff_len = 0; fi->q.mfsbuff_end = 0; fi->g.mfs_buffer_count = 0; fi->q.ptr_sfsbq_base = NULL; fi->q.sfsbq_len = 0; fi->q.sfsbq_end = 0; fi->q.sfsbq_prod_indx = 0; fi->q.sfsbq_cons_indx = 0; fi->q.sfsbuff_len = 0; fi->q.sfsbuff_end = 0; fi->q.sdb_indx = 0; fi->q.fcp_cmnd_indx = 0; fi->q.ptr_edb_base = NULL; fi->q.edb_buffer_indx = 0; fi->q.ptr_tachyon_header_base = NULL; fi->q.tachyon_header_indx = 0; fi->node_info_list = NULL; fi->ox_id_list = NULL; fi->g.loop_up = FALSE; fi->g.ptp_up = FALSE; fi->g.link_up = FALSE; fi->g.fabric_present = FALSE; fi->g.n_port_try = FALSE; fi->g.dont_init = FALSE; fi->g.nport_timer_set = FALSE; fi->g.lport_timer_set = FALSE; fi->g.no_of_targets = 0; fi->g.sem = 0; fi->g.perform_adisc = FALSE; fi->g.e_i = 0; /* build OCQ */ if ( (fi->q.ptr_ocq_base = (u_int *)__get_free_pages(GFP_KERNEL, 0)) == 0) { T_MSG("failed to get OCQ page"); return 0; } /* set up the OCQ structures */ for (i = 0; i < OCQ_LENGTH; i++) fi->q.ptr_odb[i] = fi->q.ptr_ocq_base + NO_OF_ENTRIES*i; /* build IMQ */ if ( (fi->q.ptr_imq_base = (u_int *)__get_free_pages(GFP_KERNEL, 0)) == 0) { T_MSG("failed to get IMQ page"); return 0; } for (i = 0; i < IMQ_LENGTH; i++) fi->q.ptr_imqe[i] = fi->q.ptr_imq_base + NO_OF_ENTRIES*i; /* build MFSBQ */ if ( (fi->q.ptr_mfsbq_base = (u_int *)__get_free_pages(GFP_KERNEL, 0)) == 0) { T_MSG("failed to get MFSBQ page"); return 0; } memset((char *)fi->q.ptr_mfsbq_base, 0, MFSBQ_LENGTH * 32); /* Allocate one huge chunk of memory... helps while reassembling * frames. */ if ( (addr = (u_char *)__get_free_pages(GFP_KERNEL, 5) ) == 0) { T_MSG("failed to get MFSBQ page"); return 0; } /* fill in addresses of empty buffers */ for (i = 0; i < MFSBQ_LENGTH; i++) { for (j = 0; j < NO_OF_ENTRIES; j++) { *(fi->q.ptr_mfsbq_base + i*NO_OF_ENTRIES + j) = htonl(virt_to_bus(addr)); addr += MFS_BUFFER_SIZE; } } /* The number of entries in each MFS buffer is 8. There are 8 * MFS buffers. That leaves us with 4096-256 bytes. We use them * as temporary space for ELS frames. This is done to make sure that * the addresses are aligned. */ fi->g.els_buffer[0] = fi->q.ptr_mfsbq_base + MFSBQ_LENGTH*NO_OF_ENTRIES; for (i = 1; i < MAX_PENDING_FRAMES; i++) fi->g.els_buffer[i] = fi->g.els_buffer[i-1] + 64; /* build SFSBQ */ if ( (fi->q.ptr_sfsbq_base = (u_int *)__get_free_pages(GFP_KERNEL, 0)) == 0) { T_MSG("failed to get SFSBQ page"); return 0; } memset((char *)fi->q.ptr_sfsbq_base, 0, SFSBQ_LENGTH * 32); /* fill in addresses of empty buffers */ for (i = 0; i < SFSBQ_LENGTH; i++) for (j = 0; j < NO_OF_ENTRIES; j++){ addr = kmalloc(SFS_BUFFER_SIZE*2, GFP_KERNEL); if (addr == NULL){ T_MSG("ptr_sfs_buffer : memory not allocated"); return 0; } else { int offset = ALIGNED_SFS_ADDR(addr); memset((char *)addr, 0, SFS_BUFFER_SIZE); fi->q.ptr_sfs_buffers[i*NO_OF_ENTRIES +j] = (u_int *)addr; addr += offset; *(fi->q.ptr_sfsbq_base + i*NO_OF_ENTRIES + j) = htonl(virt_to_bus(addr)); } } /* The number of entries in each SFS buffer is 8. There are 8 * MFS buffers. That leaves us with 4096-256 bytes. We use them * as temporary space for ARP frames. This is done inorder to * support HW_Types of 0x1 and 0x6. */ fi->g.arp_buffer = (char *)fi->q.ptr_sfsbq_base + SFSBQ_LENGTH*NO_OF_ENTRIES*4; /* build EDB */ if ((fi->q.ptr_edb_base = (u_int *)__get_free_pages(GFP_KERNEL, 5) ) == 0) { T_MSG("failed to get EDB page"); return 0; } for (i = 0; i < EDB_LEN; i++) fi->q.ptr_edb[i] = fi->q.ptr_edb_base + 2*i; /* build SEST */ /* OX_IDs range from 0x0 - 0x4FFF. */ if ((fi->q.ptr_sest_base = (u_int *)__get_free_pages(GFP_KERNEL, 5)) == 0) { T_MSG("failed to get SEST page"); return 0; } for (i = 0; i < SEST_LENGTH; i++) fi->q.ptr_sest[i] = fi->q.ptr_sest_base + NO_OF_ENTRIES*i; if ((fi->q.ptr_sdb_base = (u_int *)__get_free_pages(GFP_KERNEL, 5)) == 0) { T_MSG("failed to get SDB page"); return 0; } for (i = 0 ; i < NO_OF_SDB_ENTRIES; i++) fi->q.ptr_sdb_slot[i] = fi->q.ptr_sdb_base + (SDB_SIZE/4)*i; if ((fi->q.ptr_fcp_cmnd_base = (u_int *)__get_free_pages(GFP_KERNEL, 0)) == 0) { T_MSG("failed to get FCP_CMND page"); return 0; } for (i = 0; i < NO_OF_FCP_CMNDS; i++) fi->q.ptr_fcp_cmnd[i] = fi->q.ptr_fcp_cmnd_base + NO_OF_ENTRIES*i; /* Allocate space for Tachyon Header as well... */ if ((fi->q.ptr_tachyon_header_base = (u_int *)__get_free_pages(GFP_KERNEL, 0) ) == 0) { T_MSG("failed to get tachyon_header page"); return 0; } for (i = 0; i < NO_OF_TACH_HEADERS; i++) fi->q.ptr_tachyon_header[i] = fi->q.ptr_tachyon_header_base + 16*i; /* Allocate memory for indices. * Indices should be aligned on 32 byte boundries. */ fi->q.host_ocq_cons_indx = kmalloc(2*32, GFP_KERNEL); if (fi->q.host_ocq_cons_indx == NULL){ T_MSG("fi->q.host_ocq_cons_indx : memory not allocated"); return 0; } fi->q.ptr_host_ocq_cons_indx = fi->q.host_ocq_cons_indx; if ((u_long)(fi->q.host_ocq_cons_indx) % 32) fi->q.host_ocq_cons_indx++; fi->q.host_hpcq_cons_indx = kmalloc(2*32, GFP_KERNEL); if (fi->q.host_hpcq_cons_indx == NULL){ T_MSG("fi->q.host_hpcq_cons_indx : memory not allocated"); return 0; } fi->q.ptr_host_hpcq_cons_indx= fi->q.host_hpcq_cons_indx; if ((u_long)(fi->q.host_hpcq_cons_indx) % 32) fi->q.host_hpcq_cons_indx++; fi->q.host_imq_prod_indx = kmalloc(2*32, GFP_KERNEL); if (fi->q.host_imq_prod_indx == NULL){ T_MSG("fi->q.host_imq_prod_indx : memory not allocated"); return 0; } fi->q.ptr_host_imq_prod_indx = fi->q.host_imq_prod_indx; if ((u_long)(fi->q.host_imq_prod_indx) % 32) fi->q.host_imq_prod_indx++; LEAVE("build_queues"); return 1; } static void write_to_tachyon_registers(struct fc_info *fi) { u_int bus_addr, bus_indx_addr, i; ENTER("write_to_tachyon_registers"); /* Clear Queues each time Tachyon is reset */ memset((char *)fi->q.ptr_ocq_base, 0, OCQ_LENGTH * 32); memset((char *)fi->q.ptr_imq_base, 0, IMQ_LENGTH * 32); memset((char *)fi->q.ptr_edb_base, 0, EDB_LEN * 8); memset((char *)fi->q.ptr_sest_base, 0, SEST_LENGTH * 32); memset((char *)fi->q.ptr_sdb_base, 0, NO_OF_SDB_ENTRIES * SDB_SIZE); memset((char *)fi->q.ptr_tachyon_header_base, 0xFF, NO_OF_TACH_HEADERS * TACH_HEADER_SIZE); for (i = 0; i < SEST_LENGTH; i++) fi->q.free_scsi_oxid[i] = OXID_AVAILABLE; for (i = 0; i < NO_OF_SDB_ENTRIES; i++) fi->q.sdb_slot_status[i] = SDB_FREE; take_tachyon_offline(fi); writel(readl(fi->t_r.ptr_tach_config_reg) | SCSI_ENABLE | WRITE_STREAM_SIZE | READ_STREAM_SIZE | PARITY_EVEN | OOO_REASSEMBLY_DISABLE, fi->t_r.ptr_tach_config_reg); /* Write OCQ registers */ fi->q.ocq_prod_indx = 0; *(fi->q.host_ocq_cons_indx) = 0; /* The Tachyon needs to be passed the "real" address */ bus_addr = virt_to_bus(fi->q.ptr_ocq_base); writel(bus_addr, fi->t_r.ptr_ocq_base_reg); writel(OCQ_LENGTH - 1, fi->t_r. ptr_ocq_len_reg); bus_indx_addr = virt_to_bus(fi->q.host_ocq_cons_indx); writel(bus_indx_addr, fi->t_r.ptr_ocq_cons_indx_reg); /* Write IMQ registers */ fi->q.imq_cons_indx = 0; *(fi->q.host_imq_prod_indx) = 0; bus_addr = virt_to_bus(fi->q.ptr_imq_base); writel(bus_addr, fi->t_r.ptr_imq_base_reg); writel(IMQ_LENGTH - 1, fi->t_r.ptr_imq_len_reg); bus_indx_addr = virt_to_bus(fi->q.host_imq_prod_indx); writel(bus_indx_addr, fi->t_r.ptr_imq_prod_indx_reg); /* Write MFSBQ registers */ fi->q.mfsbq_prod_indx = MFSBQ_LENGTH - 1; fi->q.mfsbuff_end = MFS_BUFFER_SIZE - 1; fi->q.mfsbq_cons_indx = 0; bus_addr = virt_to_bus(fi->q.ptr_mfsbq_base); writel(bus_addr, fi->t_r.ptr_mfsbq_base_reg); writel(MFSBQ_LENGTH - 1, fi->t_r.ptr_mfsbq_len_reg); writel(fi->q.mfsbuff_end, fi->t_r.ptr_mfsbuff_len_reg); /* Do this last as tachyon will prefetch the * first entry as soon as we write to it. */ writel(fi->q.mfsbq_prod_indx, fi->t_r.ptr_mfsbq_prod_reg); /* Write SFSBQ registers */ fi->q.sfsbq_prod_indx = SFSBQ_LENGTH - 1; fi->q.sfsbuff_end = SFS_BUFFER_SIZE - 1; fi->q.sfsbq_cons_indx = 0; bus_addr = virt_to_bus(fi->q.ptr_sfsbq_base); writel(bus_addr, fi->t_r.ptr_sfsbq_base_reg); writel(SFSBQ_LENGTH - 1, fi->t_r.ptr_sfsbq_len_reg); writel(fi->q.sfsbuff_end, fi->t_r.ptr_sfsbuff_len_reg); /* Do this last as tachyon will prefetch the first * entry as soon as we write to it. */ writel(fi->q.sfsbq_prod_indx, fi->t_r.ptr_sfsbq_prod_reg); /* Write SEST registers */ bus_addr = virt_to_bus(fi->q.ptr_sest_base); writel(bus_addr, fi->t_r.ptr_sest_base_reg); writel(SEST_LENGTH - 1, fi->t_r.ptr_sest_len_reg); /* the last 2 bits _should_ be 1 */ writel(SEST_BUFFER_SIZE - 1, fi->t_r.ptr_scsibuff_len_reg); /* write AL_TIME & E_D_TOV into the registers */ writel(TOV_VALUES, fi->t_r.ptr_fm_tov_reg); /* Tell Tachyon to pick a Soft Assigned AL_PA */ writel(LOOP_INIT_SOFT_ADDRESS, fi->t_r.ptr_fm_config_reg); /* Read the WWN from EEPROM . But, for now we assign it here. */ writel(WORLD_WIDE_NAME_LOW, fi->t_r.ptr_fm_wwn_low_reg); writel(WORLD_WIDE_NAME_HIGH, fi->t_r.ptr_fm_wwn_hi_reg); DPRINTK1("TACHYON initializing as L_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); LEAVE("write_to_tachyon_registers"); } static void tachyon_interrupt(int irq, void* dev_id, struct pt_regs* regs) { struct Scsi_Host *host = dev_id; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata; struct fc_info *fi = hostdata->fi; u_long flags; spin_lock_irqsave(&fi->fc_lock, flags); tachyon_interrupt_handler(irq, dev_id, regs); spin_unlock_irqrestore(&fi->fc_lock, flags); } static void tachyon_interrupt_handler(int irq, void* dev_id, struct pt_regs* regs) { struct Scsi_Host *host = dev_id; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata; struct fc_info *fi = hostdata->fi; u_int *ptr_imq_entry; u_int imq_int_type, current_IMQ_index = 0, prev_IMQ_index; int index, no_of_entries = 0; DPRINTK("\n"); ENTER("tachyon_interrupt"); if (fi->q.host_imq_prod_indx != NULL) { current_IMQ_index = ntohl(*(fi->q.host_imq_prod_indx)); } else { /* _Should not_ happen */ T_MSG("IMQ_indx NULL. DISABLING INTERRUPTS!!!\n"); writel(0x0, fi->i_r.ptr_ichip_hw_control_reg); } if (current_IMQ_index > fi->q.imq_cons_indx) no_of_entries = current_IMQ_index - fi->q.imq_cons_indx; else if (current_IMQ_index < fi->q.imq_cons_indx) no_of_entries = IMQ_LENGTH - (fi->q.imq_cons_indx - current_IMQ_index); if (no_of_entries == 0) { u_int ichip_status; ichip_status = readl(fi->i_r.ptr_ichip_hw_status_reg); if (ichip_status & 0x20) { /* Should _never_ happen. Might require a hard reset */ T_MSG("Too bad... PCI Bus Error. Resetting (i)chip"); reset_ichip(fi); T_MSG("DISABLING INTERRUPTS!!!\n"); writel(0x0, fi->i_r.ptr_ichip_hw_control_reg); } } prev_IMQ_index = current_IMQ_index; for (index = 0; index < no_of_entries; index++) { ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; imq_int_type = ntohl(*ptr_imq_entry); completion_message_handler(fi, imq_int_type); if ((fi->g.link_up == FALSE) && ((imq_int_type == MFS_BUF_WARN) || (imq_int_type == SFS_BUF_WARN) || (imq_int_type == IMQ_BUF_WARN))) break; update_IMQ_indx(fi, 1); /* Check for more entries */ current_IMQ_index = ntohl(*(fi->q.host_imq_prod_indx)); if (current_IMQ_index != prev_IMQ_index) { no_of_entries++; prev_IMQ_index = current_IMQ_index; } } /*end of for loop*/ return; LEAVE("tachyon_interrupt"); } static void handle_SFS_BUF_WARN_interrupt(struct fc_info *fi) { int i; ENTER("handle_SFS_BUF_WARN_interrupt"); if (fi->g.link_up == FALSE) { reset_tachyon(fi, SOFTWARE_RESET); return; } /* Free up all but one entry in the Q. */ for (i = 0; i < ((SFSBQ_LENGTH - 1) * NO_OF_ENTRIES); i++) { handle_SFS_interrupt(fi); update_IMQ_indx(fi, 1); } LEAVE("handle_SFS_BUF_WARN_interrupt"); } /* Untested_Code_Begin */ static void handle_MFS_BUF_WARN_interrupt(struct fc_info *fi) { int i; ENTER("handle_MFS_BUF_WARN_interrupt"); if (fi->g.link_up == FALSE) { reset_tachyon(fi, SOFTWARE_RESET); return; } /* FIXME: freeing up 8 entries. */ for (i = 0; i < NO_OF_ENTRIES; i++) { handle_MFS_interrupt(fi); update_IMQ_indx(fi, 1); } LEAVE("handle_MFS_BUF_WARN_interrupt"); } /*Untested_Code_End */ static void handle_IMQ_BUF_WARN_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; u_int imq_int_type, current_IMQ_index = 0, temp_imq_cons_indx; int index, no_of_entries = 0; ENTER("handle_IMQ_BUF_WARN_interrupt"); if (fi->g.link_up == FALSE) { reset_tachyon(fi, SOFTWARE_RESET); return; } current_IMQ_index = ntohl(*(fi->q.host_imq_prod_indx)); if (current_IMQ_index > fi->q.imq_cons_indx) no_of_entries = current_IMQ_index - fi->q.imq_cons_indx; else if (current_IMQ_index < fi->q.imq_cons_indx) no_of_entries = IMQ_LENGTH - (fi->q.imq_cons_indx - current_IMQ_index); /* We dont want to look at the same IMQ entry again. */ temp_imq_cons_indx = fi->q.imq_cons_indx + 1; if (no_of_entries != 0) no_of_entries -= 1; for (index = 0; index < no_of_entries; index++) { ptr_imq_entry = fi->q.ptr_imqe[temp_imq_cons_indx]; imq_int_type = ntohl(*ptr_imq_entry); if (imq_int_type != IMQ_BUF_WARN) completion_message_handler(fi, imq_int_type); temp_imq_cons_indx++; if (temp_imq_cons_indx == IMQ_LENGTH) temp_imq_cons_indx = 0; } /*end of for loop*/ if (no_of_entries != 0) update_IMQ_indx(fi, no_of_entries); LEAVE("handle_IMQ_BUF_WARN_interrupt"); } static void completion_message_handler(struct fc_info *fi, u_int imq_int_type) { switch(imq_int_type) { case OUTBOUND_COMPLETION: DPRINTK("OUTBOUND_COMPLETION message received"); break; case OUTBOUND_COMPLETION_I: DPRINTK("OUTBOUND_COMPLETION_I message received"); handle_OCI_interrupt(fi); break; case OUT_HI_PRI_COMPLETION: DPRINTK("OUT_HI_PRI_COMPLETION message received"); break; case OUT_HI_PRI_COMPLETION_I: DPRINTK("OUT_HI_PRI_COMPLETION_I message received"); break; case INBOUND_MFS_COMPLETION: DPRINTK("INBOUND_MFS_COMPLETION message received"); handle_MFS_interrupt(fi); break; case INBOUND_OOO_COMPLETION: DPRINTK("INBOUND_OOO_COMPLETION message received"); handle_OOO_interrupt(fi); break; case INBOUND_SFS_COMPLETION: DPRINTK("INBOUND_SFS_COMPLETION message received"); handle_SFS_interrupt(fi); break; case INBOUND_UNKNOWN_FRAME_I: DPRINTK("INBOUND_UNKNOWN_FRAME message received"); handle_Unknown_Frame_interrupt(fi); break; case INBOUND_BUSIED_FRAME: DPRINTK("INBOUND_BUSIED_FRAME message received"); handle_Busied_Frame_interrupt(fi); break; case FRAME_MGR_INTERRUPT: DPRINTK("FRAME_MGR_INTERRUPT message received"); handle_FM_interrupt(fi); break; case READ_STATUS: DPRINTK("READ_STATUS message received"); break; case SFS_BUF_WARN: DPRINTK("SFS_BUF_WARN message received"); handle_SFS_BUF_WARN_interrupt(fi); break; case MFS_BUF_WARN: DPRINTK("MFS_BUF_WARN message received"); handle_MFS_BUF_WARN_interrupt(fi); break; case IMQ_BUF_WARN: DPRINTK("IMQ_BUF_WARN message received"); handle_IMQ_BUF_WARN_interrupt(fi); break; case INBOUND_C1_TIMEOUT: DPRINTK("INBOUND_C1_TIMEOUT message received"); break; case BAD_SCSI_FRAME: DPRINTK("BAD_SCSI_FRAME message received"); handle_Bad_SCSI_Frame_interrupt(fi); break; case INB_SCSI_STATUS_COMPLETION: DPRINTK("INB_SCSI_STATUS_COMPL message received"); handle_Inbound_SCSI_Status_interrupt(fi); break; case INBOUND_SCSI_COMMAND: DPRINTK("INBOUND_SCSI_COMMAND message received"); handle_Inbound_SCSI_Command_interrupt(fi); break; case INBOUND_SCSI_DATA_COMPLETION: DPRINTK("INBOUND_SCSI_DATA message received"); /* Only for targets */ break; default: T_MSG("DEFAULT message received, type = %x", imq_int_type); return; } reset_latch(fi); } static void handle_OCI_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; u_long transaction_id = 0; unsigned short status, seq_count, transmitted_ox_id; struct Scsi_Host *host = fi->host; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata; Scsi_Cmnd *Cmnd; u_int tag; ENTER("handle_OCI_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; transaction_id = ntohl(*(ptr_imq_entry + 1)); status = ntohl(*(ptr_imq_entry + 2)) >> 16; seq_count = ntohl(*(ptr_imq_entry + 3)); DPRINTK("transaction_id= %x", (u_int)transaction_id); tag = transaction_id & 0xFFFF0000; transmitted_ox_id = transaction_id; /* The INT could be either due to TIME_OUT | BAD_ALPA. * But we check only for TimeOuts. Bad AL_PA will * caught by FM_interrupt handler. */ if ((status == OCM_TIMEOUT_OR_BAD_ALPA) && (!fi->g.port_discovery) && (!fi->g.perform_adisc)){ DPRINTK("Frame TimeOut on OX_ID = %x", (u_int)transaction_id); /* Is it a SCSI frame that is timing out ? Not a very good check... */ if ((transmitted_ox_id <= MAX_SCSI_OXID) && ((tag == FC_SCSI_BAD_TARGET) || (tag < 0x00FF0000))) { /* If it is a Bad AL_PA, we report it as BAD_TARGET. * Else, we allow the command to time-out. A Link * re-initialization could be taking place. */ if (tag == FC_SCSI_BAD_TARGET) { Cmnd = hostdata->cmnd_handler[transmitted_ox_id & MAX_SCSI_XID]; hostdata->cmnd_handler[transmitted_ox_id & MAX_SCSI_XID] = NULL; if (Cmnd != NULL) { Cmnd->result = DID_BAD_TARGET << 16; (*Cmnd->scsi_done) (Cmnd); } else T_MSG("NULL Command out of handler!"); } /* if Bad Target */ else { u_char missing_target = tag >> 16; struct fc_node_info *q = fi->node_info_list; /* A Node that we thought was logged in has gone * away. We are the optimistic kind and we keep * hoping that our dear little Target will come back * to us. For now we log him out. */ DPRINTK2("Missing Target = %d", missing_target); while (q != NULL) { if (q->target_id == missing_target) { T_MSG("Target %d Logged out", q->target_id); q->login = LOGIN_ATTEMPTED; if (fi->num_nodes > 0) fi->num_nodes--; tx_logi(fi, ELS_PLOGI, q->d_id); break; } else q = q->next; } } } /* End of SCSI frame timing out. */ else { if (seq_count > 1) { /* An IP frame was transmitted to a Bad AL_PA. Free up * the skb used. */ dev_kfree_skb_irq((struct sk_buff *)(bus_to_virt(transaction_id))); netif_wake_queue(fi->dev); } } /* End of IP frame timing out. */ } /* End of frame timing out. */ else { /* Frame was transmitted successfully. Check if it was an ELS * frame or an IP frame or a Bad_Target_Notification frame (in * case of a ptp_link). Ugly! */ if ((status == 0) && (seq_count == 0)) { u_int tag = transaction_id & 0xFFFF0000; /* Continue with port discovery after an ELS is successfully * transmitted. (status == 0). */ DPRINTK("tag = %x", tag); switch(tag) { case ELS_FLOGI: /* Letz use the Name Server instead */ fi->g.explore_fabric = TRUE; fi->g.port_discovery = FALSE; fi->g.alpa_list_index = MAX_NODES; add_to_ox_id_list(fi, transaction_id, tag); break; case ELS_PLOGI: if (fi->g.fabric_present && (fi->g.name_server == FALSE)) add_to_ox_id_list(fi,transaction_id,ELS_NS_PLOGI); else add_to_ox_id_list(fi, transaction_id, tag); break; case FC_SCSI_BAD_TARGET: Cmnd = hostdata->cmnd_handler[transmitted_ox_id & MAX_SCSI_XID]; hostdata->cmnd_handler[transmitted_ox_id & MAX_SCSI_XID] = NULL; if (Cmnd != NULL) { Cmnd->result = DID_BAD_TARGET << 16; (*Cmnd->scsi_done) (Cmnd); } else T_MSG("NULL Command out of handler!"); break; default: add_to_ox_id_list(fi, transaction_id, tag); } if (fi->g.alpa_list_index >= MAX_NODES) { if (fi->g.port_discovery == TRUE) { fi->g.port_discovery = FALSE; add_display_cache_timer(fi); } fi->g.alpa_list_index = MAX_NODES; } if (fi->g.port_discovery == TRUE) local_port_discovery(fi); } else { /* An IP frame has been successfully transmitted. * Free the skb that was used for this IP frame. */ if ((status == 0) && (seq_count > 1)) { dev_kfree_skb_irq((struct sk_buff *)(bus_to_virt(transaction_id))); netif_wake_queue(fi->dev); } } } LEAVE("handle_OCI_interrupt"); } /* Right now we discard OOO frames */ static void handle_OOO_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; int queue_indx, offset, payload_size; int no_of_buffers = 1; /* header is in a separate buffer */ ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; payload_size = ntohl(*(ptr_imq_entry + 2)) - TACHYON_HEADER_LEN; /* Calculate total number of buffers */ no_of_buffers += payload_size / MFS_BUFFER_SIZE; if (payload_size % MFS_BUFFER_SIZE) no_of_buffers++; /* provide Tachyon will another set of buffers */ fi->g.mfs_buffer_count += no_of_buffers; if (fi->g.mfs_buffer_count >= NO_OF_ENTRIES) { int count = fi->g.mfs_buffer_count / NO_OF_ENTRIES; fi->g.mfs_buffer_count -= NO_OF_ENTRIES * count; update_MFSBQ_indx(fi, count); } } static void handle_MFS_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry, *buff_addr; u_int type_of_frame, s_id; int queue_indx, offset, payload_size, starting_indx, starting_offset; u_short received_ox_id; int no_of_buffers = 1; /* header is in a separate buffer */ struct sk_buff *skb; int wrap_around = FALSE, no_of_wrap_buffs = NO_OF_ENTRIES - 1; ENTER("handle_MFS_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; DPRINTK("queue_indx = %d, offset = %d\n", queue_indx, offset); payload_size = ntohl(*(ptr_imq_entry + 2)) - TACHYON_HEADER_LEN; DPRINTK("payload_size = %d", payload_size); /* Calculate total number of buffers */ no_of_buffers += payload_size / MFS_BUFFER_SIZE; if (payload_size % MFS_BUFFER_SIZE) no_of_buffers++; DPRINTK("no_of_buffers = %d", no_of_buffers); if ((no_of_buffers - 1) <= offset) { starting_offset = offset - (no_of_buffers - 1); starting_indx = queue_indx; } else { int temp = no_of_buffers - (offset + 1); int no_of_queues = temp / NO_OF_ENTRIES; starting_offset = temp % NO_OF_ENTRIES; if (starting_offset != 0) { no_of_wrap_buffs = starting_offset - 1; //exclude header starting_offset = NO_OF_ENTRIES - starting_offset; no_of_queues++; } starting_indx = queue_indx - no_of_queues; if (starting_indx < 0) { no_of_wrap_buffs -= (starting_indx + 1) * NO_OF_ENTRIES; starting_indx = MFSBQ_LENGTH + starting_indx; wrap_around = TRUE; } } DPRINTK("starting_indx = %d, starting offset = %d no_of_wrap_buffs = %d\n", starting_indx, starting_offset, no_of_wrap_buffs); /* Get Tachyon Header from first buffer */ buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_mfsbq_base + starting_indx*NO_OF_ENTRIES + starting_offset))); /* extract Type of Frame */ type_of_frame = (u_int)ntohl(*(buff_addr + 4)) & 0xFF000000; s_id = (u_int)ntohl(*(buff_addr + 3)) & 0x00FFFFFF; received_ox_id = ntohl(*(buff_addr + 6)) >> 16; buff_addr += MFS_BUFFER_SIZE/4; DPRINTK("type_of_frame = %x, s_id = %x, ox_id = %x", type_of_frame, s_id, received_ox_id); switch(type_of_frame) { case TYPE_LLC_SNAP: skb = dev_alloc_skb(payload_size); if (skb == NULL) { printk(KERN_NOTICE "%s: In handle_MFS_interrupt() Memory squeeze, dropping packet.\n", fi->name); fi->fc_stats.rx_dropped++; fi->g.mfs_buffer_count += no_of_buffers; if (fi->g.mfs_buffer_count >= NO_OF_ENTRIES) { int count = fi->g.mfs_buffer_count / NO_OF_ENTRIES; fi->g.mfs_buffer_count -= NO_OF_ENTRIES * count; update_MFSBQ_indx(fi, count); return; } } if (wrap_around) { int wrap_size = no_of_wrap_buffs * MFS_BUFFER_SIZE; int tail_size = payload_size - wrap_size; DPRINTK("wrap_size = %d, tail_size = %d\n", wrap_size, tail_size); if (no_of_wrap_buffs) memcpy(skb_put(skb, wrap_size), buff_addr, wrap_size); buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_mfsbq_base))); memcpy(skb_put(skb, tail_size), buff_addr, tail_size); } else memcpy(skb_put(skb, payload_size), buff_addr, payload_size); rx_net_mfs_packet(fi, skb); break; default: T_MSG("Unknown Frame Type received. Type = %x", type_of_frame); } /* provide Tachyon will another set of buffers */ fi->g.mfs_buffer_count += no_of_buffers; if (fi->g.mfs_buffer_count >= NO_OF_ENTRIES) { int count = fi->g.mfs_buffer_count / NO_OF_ENTRIES; fi->g.mfs_buffer_count -= NO_OF_ENTRIES * count; update_MFSBQ_indx(fi, count); } LEAVE("handle_MFS_interrupt"); } static void handle_Unknown_Frame_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; int queue_indx, offset; ENTER("handle_Unknown_Frame_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; /* We discard the "unknown" frame */ /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_Unknown_Frame_interrupt"); } static void handle_Busied_Frame_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; int queue_indx, offset; ENTER("handle_Busied_Frame_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; /* We discard the "busied" frame */ /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_Busied_Frame_interrupt"); } static void handle_Bad_SCSI_Frame_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry, *buff_addr, *tach_header, *ptr_edb; u_int s_id, rctl, frame_class, burst_len, transfered_len, len = 0; int queue_indx, offset, payload_size, i; u_short ox_id, rx_id, x_id, mtu = 512; u_char target_id = 0xFF; ENTER("handle_Bad_SCSI_Frame_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; payload_size = ntohl(*(ptr_imq_entry + 2)); buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_sfsbq_base + queue_indx*NO_OF_ENTRIES + offset))); rctl = ntohl(*(buff_addr + 2)) & 0xFF000000; s_id = ntohl(*(buff_addr + 3)) & 0x00FFFFFF; ox_id = ntohl(*(buff_addr + 6)) >> 16; rx_id = ntohl(*(buff_addr + 6)); x_id = ox_id & MAX_SCSI_XID; /* Any frame that comes in with OX_ID that matches an OX_ID * that has been allocated for SCSI, will be called a Bad * SCSI frame if the Exchange is not valid any more. * * We will also get a Bad SCSI frame interrupt if we receive * a XFER_RDY with offset != 0. Tachyon washes its hands off * this Exchange. We have to take care of ourselves. Grrr... */ if (rctl == DATA_DESCRIPTOR) { struct fc_node_info *q = fi->node_info_list; while (q != NULL) { if (q->d_id == s_id) { target_id = q->target_id; mtu = q->mtu; break; } else q = q->next; } frame_class = target_id; transfered_len = ntohl(*(buff_addr + 8)); burst_len = ntohl(*(buff_addr + 9)); build_ODB(fi, fi->g.seq_id, s_id, burst_len, 0, mtu, ox_id, rx_id, 0, 0, frame_class << 16); /* Update the SEQ_ID and Relative Offset in the * Tachyon Header Structure. */ tach_header = bus_to_virt(ntohl(*(fi->q.ptr_sest[x_id] + 5))); *(tach_header + 5) = htonl(fi->g.seq_id << 24); *(tach_header + 7) = htonl(transfered_len); fi->g.odb.hdr_addr = *(fi->q.ptr_sest[x_id] + 5); /* Invalidate the EDBs used */ ptr_edb = bus_to_virt(ntohl(*(fi->q.ptr_sest[x_id] + 7))); for (i = 0; i < EDB_LEN; i++) if (fi->q.ptr_edb[i] == ptr_edb) break; ptr_edb--; if (i < EDB_LEN) { int j; do { ptr_edb += 2; len += (htonl(*ptr_edb) & 0xFFFF); j = i; fi->q.free_edb_list[i++] = EDB_FREE; if (i == EDB_LEN) { i = 0; ptr_edb = fi->q.ptr_edb_base - 1; } } while (len < transfered_len); if (len > transfered_len) { ptr_edb--; fi->q.free_edb_list[j] = EDB_BUSY; } else ptr_edb++; } else { T_MSG("EDB not found while freeing"); if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); return; } /* Update the EDB pointer in the ODB. */ fi->g.odb.edb_addr = htonl(virt_to_bus(ptr_edb)); memcpy(fi->q.ptr_odb[fi->q.ocq_prod_indx], &(fi->g.odb), sizeof(ODB)); /* Update the EDB pointer in the SEST entry. We might need * this if get another XFER_RDY for the same Exchange. */ *(fi->q.ptr_sest[x_id] + 7) = htonl(virt_to_bus(ptr_edb)); update_OCQ_indx(fi); if (fi->g.seq_id == MAX_SEQ_ID) fi->g.seq_id = 0; else fi->g.seq_id++; } else /* Could be a BA_ACC or a BA_RJT. */ if (rctl == RCTL_BASIC_ACC) { u_int bls_type = remove_from_ox_id_list(fi, ox_id); DPRINTK1("BA_ACC received from S_ID 0x%x with OX_ID = %x in response to %x", s_id, ox_id, bls_type); if (bls_type == RCTL_BASIC_ABTS) { u_int STE_bit; /* Invalidate resources for that Exchange. */ STE_bit = ntohl(*fi->q.ptr_sest[x_id]); if (STE_bit & SEST_V) { *(fi->q.ptr_sest[x_id]) &= htonl(SEST_INV); invalidate_SEST_entry(fi, ox_id); } } } else if (rctl == RCTL_BASIC_RJT) { u_int bls_type = remove_from_ox_id_list(fi, ox_id); DPRINTK1("BA_RJT received from S_ID 0x%x with OX_ID = %x in response to %x", s_id, ox_id, bls_type); if (bls_type == RCTL_BASIC_ABTS) { u_int STE_bit; /* Invalidate resources for that Exchange. */ STE_bit = ntohl(*fi->q.ptr_sest[x_id]); if (STE_bit & SEST_V) { *(fi->q.ptr_sest[x_id]) &= htonl(SEST_INV); invalidate_SEST_entry(fi, ox_id); } } } else DPRINTK1("Frame with R_CTL = %x received from S_ID 0x%x with OX_ID %x", rctl, s_id, ox_id); /* Else, discard the "Bad" SCSI frame. */ /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_Bad_SCSI_Frame_interrupt"); } static void handle_Inbound_SCSI_Status_interrupt(struct fc_info *fi) { struct Scsi_Host *host = fi->host; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata; u_int *ptr_imq_entry, *buff_addr, *ptr_rsp_info, *ptr_sense_info = NULL; int queue_indx, offset, payload_size; u_short received_ox_id, x_id; Scsi_Cmnd *Cmnd; u_int fcp_status, fcp_rsp_info_len = 0, fcp_sense_info_len = 0, s_id; ENTER("handle_SCSI_status_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_sfsbq_base + queue_indx*NO_OF_ENTRIES + offset))); payload_size = ntohl(*(ptr_imq_entry + 2)); received_ox_id = ntohl(*(buff_addr + 6)) >> 16; buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_sfsbq_base + queue_indx*NO_OF_ENTRIES + offset))); fcp_status = ntohl(*(buff_addr + 10)); ptr_rsp_info = buff_addr + 14; if (fcp_status & FCP_STATUS_RSP_LEN) fcp_rsp_info_len = ntohl(*(buff_addr + 13)); if (fcp_status & FCP_STATUS_SENSE_LEN) { ptr_sense_info = ptr_rsp_info + fcp_rsp_info_len / 4; fcp_sense_info_len = ntohl(*(buff_addr + 12)); DPRINTK("sense_info = %x", (u_int)ntohl(*ptr_sense_info)); } DPRINTK("fcp_status = %x, fcp_rsp_len = %x", fcp_status, fcp_rsp_info_len); x_id = received_ox_id & MAX_SCSI_XID; Cmnd = hostdata->cmnd_handler[x_id]; hostdata->cmnd_handler[x_id] = NULL; if (Cmnd != NULL) { memset(Cmnd->sense_buffer, 0, sizeof(Cmnd->sense_buffer)); /* Check if there is a Sense field */ if (fcp_status & FCP_STATUS_SENSE_LEN) { int size = sizeof(Cmnd->sense_buffer); if (fcp_sense_info_len < size) size = fcp_sense_info_len; memcpy(Cmnd->sense_buffer, (char *)ptr_sense_info, size); } Cmnd->result = fcp_status & FCP_STATUS_MASK; (*Cmnd->scsi_done) (Cmnd); } else T_MSG("NULL Command out of handler!"); invalidate_SEST_entry(fi, received_ox_id); s_id = ntohl(*(buff_addr + 3)) & 0x00FFFFFF; fi->q.free_scsi_oxid[x_id] = OXID_AVAILABLE; /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_SCSI_status_interrupt"); } static void invalidate_SEST_entry(struct fc_info *fi, u_short received_ox_id) { u_short x_id = received_ox_id & MAX_SCSI_XID; /* Invalidate SEST entry if it is an OutBound SEST Entry */ if (!(received_ox_id & SCSI_READ_BIT)) { u_int *ptr_tach_header, *ptr_edb; u_short temp_ox_id = NOT_SCSI_XID; int i; *(fi->q.ptr_sest[x_id]) &= htonl(SEST_INV); /* Invalidate the Tachyon Header structure */ ptr_tach_header = bus_to_virt(ntohl(*(fi->q.ptr_sest[x_id] + 5))); for (i = 0; i < NO_OF_TACH_HEADERS; i++) if(fi->q.ptr_tachyon_header[i] == ptr_tach_header) break; if (i < NO_OF_TACH_HEADERS) memset(ptr_tach_header, 0xFF, 32); else T_MSG("Tachyon Header not found while freeing in invalidate_SEST_entry()"); /* Invalidate the EDB used */ ptr_edb = bus_to_virt(ntohl(*(fi->q.ptr_sest[x_id] + 7))); for (i = 0; i < EDB_LEN; i++) if (fi->q.ptr_edb[i] == ptr_edb) break; ptr_edb--; if (i < EDB_LEN) { do { ptr_edb += 2; fi->q.free_edb_list[i++] = EDB_FREE; if (i == EDB_LEN) { i = 0; ptr_edb = fi->q.ptr_edb_base - 1; } } while ((htonl(*ptr_edb) & 0x80000000) != 0x80000000); } else T_MSG("EDB not found while freeing in invalidate_SEST_entry()"); /* Search for its other header structure and destroy it! */ if ((ptr_tach_header + 16) < (fi->q.ptr_tachyon_header_base + (MY_PAGE_SIZE/4))) ptr_tach_header += 16; else ptr_tach_header = fi->q.ptr_tachyon_header_base; while (temp_ox_id != x_id) { temp_ox_id = ntohl(*(ptr_tach_header + 6)) >> 16; if (temp_ox_id == x_id) { /* Paranoid checking... */ for (i = 0; i < NO_OF_TACH_HEADERS; i++) if(fi->q.ptr_tachyon_header[i] == ptr_tach_header) break; if (i < NO_OF_TACH_HEADERS) memset(ptr_tach_header, 0xFF, 32); else T_MSG("Tachyon Header not found while freeing in invalidate_SEST_entry()"); break; } else { if ((ptr_tach_header + 16) < (fi->q.ptr_tachyon_header_base + (MY_PAGE_SIZE/4))) ptr_tach_header += 16; else ptr_tach_header = fi->q.ptr_tachyon_header_base; } } } else { u_short sdb_table_indx; /* An Inbound Command has completed or needs to be Aborted. * Clear up the SDB buffers. */ sdb_table_indx = *(fi->q.ptr_sest[x_id] + 5); fi->q.sdb_slot_status[sdb_table_indx] = SDB_FREE; } } static void handle_Inbound_SCSI_Command_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry; int queue_indx, offset; ENTER("handle_Inbound_SCSI_Command_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; /* We discard the SCSI frame as we shouldn't be receiving * a SCSI Command in the first place */ /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_Inbound_SCSI_Command_interrupt"); } static void handle_SFS_interrupt(struct fc_info *fi) { u_int *ptr_imq_entry, *buff_addr; u_int class_of_frame, type_of_frame, s_id, els_type = 0, rctl; int queue_indx, offset, payload_size, login_state; u_short received_ox_id, fs_cmnd_code; ENTER("handle_SFS_interrupt"); ptr_imq_entry = fi->q.ptr_imqe[fi->q.imq_cons_indx]; offset = ntohl(*(ptr_imq_entry + 1)) & 0x00000007; queue_indx = ntohl(*(ptr_imq_entry + 1)) & 0xFFFF0000; queue_indx = queue_indx >> 16; DPRINTK("queue_indx = %d, offset = %d\n", queue_indx, offset); payload_size = ntohl(*(ptr_imq_entry + 2)); DPRINTK("payload_size = %d", payload_size); buff_addr = bus_to_virt(ntohl(*(fi->q.ptr_sfsbq_base + queue_indx*NO_OF_ENTRIES + offset))); /* extract Type of Frame */ type_of_frame = ntohl(*(buff_addr + 4)) & 0xFF000000; s_id = ntohl(*(buff_addr + 3)) & 0x00FFFFFF; received_ox_id = ntohl(*(buff_addr + 6)) >> 16; switch(type_of_frame) { case TYPE_BLS: rctl = ntohl(*(buff_addr + 2)) & 0xFF000000; switch(rctl) { case RCTL_BASIC_ABTS: /* As an Initiator, we should never be receiving * this. */ DPRINTK1("ABTS received from S_ID 0x%x with OX_ID = %x", s_id, received_ox_id); break; } break; case TYPE_ELS: class_of_frame = ntohl(*(buff_addr + 8)); login_state = sid_logged_in(fi, s_id); switch(class_of_frame & 0xFF000000) { case ELS_PLOGI: if (s_id != fi->g.my_id) { u_int ret_code; DPRINTK1("PLOGI received from D_ID 0x%x with 0X_ID = %x", s_id, received_ox_id); if ((ret_code = plogi_ok(fi, buff_addr, payload_size)) == 0){ tx_logi_acc(fi, ELS_ACC, s_id, received_ox_id); add_to_address_cache(fi, buff_addr); } else { u_short cmnd_code = ret_code >> 16; u_short expln_code = ret_code; tx_ls_rjt(fi, s_id, received_ox_id, cmnd_code, expln_code); } } break; case ELS_ACC: els_type = remove_from_ox_id_list(fi, received_ox_id); DPRINTK1("ELS_ACC received from D_ID 0x%x in response to ELS %x", s_id, els_type); switch(els_type) { case ELS_PLOGI: add_to_address_cache(fi, buff_addr); tx_prli(fi, ELS_PRLI, s_id, OX_ID_FIRST_SEQUENCE); break; case ELS_FLOGI: add_to_address_cache(fi, buff_addr); fi->g.my_id = ntohl(*(buff_addr + 2)) & 0x00FFFFFF; fi->g.fabric_present = TRUE; fi->g.my_ddaa = fi->g.my_id & 0xFFFF00; /* Login to the Name Server */ tx_logi(fi, ELS_PLOGI, DIRECTORY_SERVER); break; case ELS_NS_PLOGI: fi->g.name_server = TRUE; add_to_address_cache(fi, buff_addr); tx_name_server_req(fi, FCS_RFC_4); tx_scr(fi); /* Some devices have a delay before * registering with the Name Server */ udelay(500); tx_name_server_req(fi, FCS_GP_ID4); break; case ELS_PRLI: mark_scsi_sid(fi, buff_addr, ADD_ENTRY); break; case ELS_ADISC: if (!(validate_login(fi, buff_addr))) tx_logo(fi, s_id, OX_ID_FIRST_SEQUENCE); break; } break; case ELS_PDISC: DPRINTK1("ELS_PDISC received from D_ID 0x%x", s_id); tx_logo(fi, s_id, received_ox_id); break; case ELS_ADISC: DPRINTK1("ELS_ADISC received from D_ID 0x%x", s_id); if (node_logged_in_prev(fi, buff_addr)) tx_adisc(fi, ELS_ACC, s_id, received_ox_id); else tx_logo(fi, s_id, received_ox_id); break; case ELS_PRLI: DPRINTK1("ELS_PRLI received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) { tx_prli(fi, ELS_ACC, s_id, received_ox_id); mark_scsi_sid(fi, buff_addr, ADD_ENTRY); } else tx_logo(fi, s_id, received_ox_id); break; case ELS_PRLO: DPRINTK1("ELS_PRLO received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_OUT) || (login_state == NODE_NOT_PRESENT)) tx_logo(fi, s_id, received_ox_id); else if (login_state == NODE_LOGGED_IN) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else if (login_state == NODE_PROCESS_LOGGED_IN) { tx_prli(fi, ELS_ACC, s_id, received_ox_id); mark_scsi_sid(fi, buff_addr, DELETE_ENTRY); } break; case ELS_LS_RJT: els_type = remove_from_ox_id_list(fi, received_ox_id); DPRINTK1("ELS_LS_RJT received from D_ID 0x%x in response to %x", s_id, els_type); /* We should be chking the reason code. */ switch (els_type) { case ELS_ADISC: tx_logi(fi, ELS_PLOGI, s_id); break; } break; case ELS_LOGO: els_type = remove_from_ox_id_list(fi, received_ox_id); DPRINTK1("ELS_LOGO received from D_ID 0x%x in response to %x", s_id, els_type); remove_from_address_cache(fi, buff_addr, ELS_LOGO); tx_acc(fi, s_id, received_ox_id); if (els_type == ELS_ADISC) tx_logi(fi, ELS_PLOGI, s_id); break; case ELS_RSCN: DPRINTK1("ELS_RSCN received from D_ID 0x%x", s_id); tx_acc(fi, s_id, received_ox_id); remove_from_address_cache(fi, buff_addr, ELS_RSCN); break; case ELS_FARP_REQ: /* We do not support FARP. So, silently discard it */ DPRINTK1("ELS_FARP_REQ received from D_ID 0x%x", s_id); break; case ELS_ABTX: DPRINTK1("ELS_ABTX received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_FLOGI: DPRINTK1("ELS_FLOGI received from D_ID 0x%x", s_id); if (fi->g.ptp_up == TRUE) { /* The node could have come up as an N_Port * in a Loop! So,try initializing as an NL_port */ take_tachyon_offline(fi); /* write AL_TIME & E_D_TOV into the registers */ writel(TOV_VALUES, fi->t_r.ptr_fm_tov_reg); writel(LOOP_INIT_SOFT_ADDRESS, fi->t_r.ptr_fm_config_reg); DPRINTK1("FLOGI received, TACHYON initializing as L_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } else { if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); } break; case ELS_ADVC: DPRINTK1("ELS_ADVC received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_ECHO: DPRINTK1("ELS_ECHO received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_ESTC: DPRINTK1("ELS_ESTC received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_ESTS: DPRINTK1("ELS_ESTS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RCS: DPRINTK1("ELS_RCS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RES: DPRINTK1("ELS_RES received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RLS: DPRINTK1("ELS_RLS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RRQ: DPRINTK1("ELS_RRQ received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RSS: DPRINTK1("ELS_RSS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RTV: DPRINTK1("ELS_RTV received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RSI: DPRINTK1("ELS_RSI received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_TEST: /* No reply sequence */ DPRINTK1("ELS_TEST received from D_ID 0x%x", s_id); break; case ELS_RNC: DPRINTK1("ELS_RNC received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_RVCS: DPRINTK1("ELS_RVCS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_TPLS: DPRINTK1("ELS_TPLS received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_GAID: DPRINTK1("ELS_GAID received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_FACT: DPRINTK1("ELS_FACT received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_FAN: /* Hmmm... You don't support FAN ??? */ DPRINTK1("ELS_FAN received from D_ID 0x%x", s_id); tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); break; case ELS_FDACT: DPRINTK1("ELS_FDACT received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_NACT: DPRINTK1("ELS_NACT received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_NDACT: DPRINTK1("ELS_NDACT received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_QoSR: DPRINTK1("ELS_QoSR received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; case ELS_FDISC: DPRINTK1("ELS_FDISC received from D_ID 0x%x", s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; default: DPRINTK1("ELS Frame %x received from D_ID 0x%x", class_of_frame, s_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) tx_ls_rjt(fi, s_id, received_ox_id, CMND_NOT_SUPP, NO_EXPLN); else tx_logo(fi, s_id, received_ox_id); break; } break; case TYPE_FC_SERVICES: fs_cmnd_code = (ntohl(*(buff_addr + 10)) & 0xFFFF0000) >>16; switch(fs_cmnd_code) { case FCS_ACC: els_type = remove_from_ox_id_list(fi, received_ox_id); DPRINTK1("FCS_ACC received from D_ID 0x%x in response to %x", s_id, els_type); if (els_type == FCS_GP_ID4) explore_fabric(fi, buff_addr); break; case FCS_REJECT: DPRINTK1("FCS_REJECT received from D_ID 0x%x in response to %x", s_id, els_type); break; } break; case TYPE_LLC_SNAP: rx_net_packet(fi, (u_char *)buff_addr, payload_size); break; default: T_MSG("Frame Type %x received from %x", type_of_frame, s_id); } /* provide Tachyon will another set of buffers */ if (offset == (NO_OF_ENTRIES - 1)) update_SFSBQ_indx(fi); LEAVE("handle_SFS_interrupt"); } static void handle_FM_interrupt(struct fc_info *fi) { u_int fm_status; u_int tachyon_status; ENTER("handle_FM_interrupt"); fm_status = readl(fi->t_r.ptr_fm_status_reg); tachyon_status = readl(fi->t_r.ptr_tach_status_reg); DPRINTK("FM_status = %x, Tachyon_status = %x", fm_status, tachyon_status); if (fm_status & LINK_DOWN) { T_MSG("Fibre Channel Link DOWN"); fm_status = readl(fi->t_r.ptr_fm_status_reg); del_timer(&fi->explore_timer); del_timer(&fi->nport_timer); del_timer(&fi->lport_timer); del_timer(&fi->display_cache_timer); fi->g.link_up = FALSE; if (fi->g.ptp_up == TRUE) fi->g.n_port_try = FALSE; fi->g.ptp_up = FALSE; fi->g.port_discovery = FALSE; fi->g.explore_fabric = FALSE; fi->g.perform_adisc = FALSE; /* Logout will all nodes */ if (fi->node_info_list) { struct fc_node_info *temp_list = fi->node_info_list; while(temp_list) { temp_list->login = LOGIN_ATTEMPTED; temp_list = temp_list->next; } fi->num_nodes = 0; } if ((fi->g.n_port_try == FALSE) && (fi->g.dont_init == FALSE)){ take_tachyon_offline(fi); /* write AL_TIME & E_D_TOV into the registers */ writel(TOV_VALUES, fi->t_r.ptr_fm_tov_reg); if ((fi->g.fabric_present == TRUE) && (fi->g.loop_up == TRUE)) { u_int al_pa = fi->g.my_id & 0xFF; writel((al_pa << 24) | LOOP_INIT_FABRIC_ADDRESS | LOOP_INIT_PREVIOUS_ADDRESS, fi->t_r.ptr_fm_config_reg); } else if (fi->g.loop_up == TRUE) { u_int al_pa = fi->g.my_id & 0xFF; writel((al_pa << 24) | LOOP_INIT_PREVIOUS_ADDRESS, fi->t_r.ptr_fm_config_reg); } else writel(LOOP_INIT_SOFT_ADDRESS, fi->t_r.ptr_fm_config_reg); fi->g.loop_up = FALSE; DPRINTK1("In LDWN TACHYON initializing as L_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } } if (fm_status & NON_PARTICIPATING) { T_MSG("Did not acquire an AL_PA. I am not participating"); } else if ((fm_status & LINK_UP) && ((fm_status & LINK_DOWN) == 0)) { T_MSG("Fibre Channel Link UP"); if ((fm_status & NON_PARTICIPATING) != TRUE) { fi->g.link_up = TRUE; if (tachyon_status & OSM_FROZEN) { reset_tachyon(fi, ERROR_RELEASE); reset_tachyon(fi, OCQ_RESET); } init_timer(&fi->explore_timer); init_timer(&fi->nport_timer); init_timer(&fi->lport_timer); init_timer(&fi->display_cache_timer); if ((fm_status & OLD_PORT) == 0) { fi->g.loop_up = TRUE; fi->g.ptp_up = FALSE; fi->g.my_id = readl(fi->t_r.ptr_fm_config_reg) >> 24; DPRINTK1("My AL_PA = %x", fi->g.my_id); fi->g.port_discovery = TRUE; fi->g.explore_fabric = FALSE; } else if (((fm_status & 0xF0) == OLD_PORT) && ((fm_status & 0x0F) == PORT_STATE_ACTIVE)) { fi->g.loop_up = FALSE; fi->g.my_id = 0x0; /* In a point-to-point configuration, we expect to be * connected to an F_Port. This driver does not yet support * a configuration where it is connected to another N_Port * directly. */ fi->g.explore_fabric = TRUE; fi->g.port_discovery = FALSE; if (fi->g.n_port_try == FALSE) { take_tachyon_offline(fi); /* write R_T_TOV & E_D_TOV into the registers */ writel(PTP_TOV_VALUES, fi->t_r.ptr_fm_tov_reg); writel(BB_CREDIT | NPORT, fi->t_r.ptr_fm_config_reg); fi->g.n_port_try = TRUE; DPRINTK1("In LUP TACHYON initializing as N_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } else { fi->g.ptp_up = TRUE; tx_logi(fi, ELS_FLOGI, F_PORT); } } fi->g.my_ddaa = 0x0; fi->g.fabric_present = FALSE; /* We havn't sent out any Name Server Reqs */ fi->g.name_server = FALSE; fi->g.alpa_list_index = 0; fi->g.ox_id = NOT_SCSI_XID; fi->g.my_mtu = FRAME_SIZE; /* Implicitly LOGO with all logged-in nodes. */ if (fi->node_info_list) { struct fc_node_info *temp_list = fi->node_info_list; while(temp_list) { temp_list->login = LOGIN_ATTEMPTED; temp_list = temp_list->next; } fi->num_nodes = 0; fi->g.perform_adisc = TRUE; //fi->g.perform_adisc = FALSE; fi->g.port_discovery = FALSE; tx_logi(fi, ELS_FLOGI, F_PORT); } else { /* If Link coming up for the _first_ time or no nodes * were logged in before... */ fi->g.scsi_oxid = 0; fi->g.seq_id = 0x00; fi->g.perform_adisc = FALSE; } /* reset OX_ID table */ while (fi->ox_id_list) { struct ox_id_els_map *temp = fi->ox_id_list; fi->ox_id_list = fi->ox_id_list->next; kfree(temp); } fi->ox_id_list = NULL; } /* End of if partipating */ } if (fm_status & ELASTIC_STORE_ERROR) { /* Too much junk on the Link */ /* Trying to clear it up by Txing PLOGI to urself */ if (fi->g.link_up == TRUE) tx_logi(fi, ELS_PLOGI, fi->g.my_id); } if (fm_status & LOOP_UP) { if (tachyon_status & OSM_FROZEN) { reset_tachyon(fi, ERROR_RELEASE); reset_tachyon(fi, OCQ_RESET); } } if (fm_status & NOS_OLS_RECEIVED){ if (fi->g.nport_timer_set == FALSE) { DPRINTK("NOS/OLS Received"); DPRINTK("FM_status = %x", fm_status); fi->nport_timer.function = nos_ols_timer; fi->nport_timer.data = (unsigned long)fi; fi->nport_timer.expires = RUN_AT((3*HZ)/100); /* 30 msec */ init_timer(&fi->nport_timer); add_timer(&fi->nport_timer); fi->g.nport_timer_set = TRUE; } } if (((fm_status & 0xF0) == OLD_PORT) && (((fm_status & 0x0F) == PORT_STATE_LF1) || ((fm_status & 0x0F) == PORT_STATE_LF2))) { DPRINTK1("Link Fail-I in OLD-PORT."); take_tachyon_offline(fi); reset_tachyon(fi, SOFTWARE_RESET); } if (fm_status & LOOP_STATE_TIMEOUT){ if ((fm_status & 0xF0) == ARBITRATING) DPRINTK1("ED_TOV timesout.In ARBITRATING state..."); if ((fm_status & 0xF0) == ARB_WON) DPRINTK1("ED_TOV timesout.In ARBITRATION WON state..."); if ((fm_status & 0xF0) == OPEN) DPRINTK1("ED_TOV timesout.In OPEN state..."); if ((fm_status & 0xF0) == OPENED) DPRINTK1("ED_TOV timesout.In OPENED state..."); if ((fm_status & 0xF0) == TX_CLS) DPRINTK1("ED_TOV timesout.In XMITTED CLOSE state..."); if ((fm_status & 0xF0) == RX_CLS) DPRINTK1("ED_TOV timesout.In RECEIVED CLOSE state..."); if ((fm_status & 0xF0) == INITIALIZING) DPRINTK1("ED_TOV timesout.In INITIALIZING state..."); DPRINTK1("Initializing Loop..."); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } if ((fm_status & BAD_ALPA) && (fi->g.loop_up == TRUE)) { u_char bad_alpa = (readl(fi->t_r.ptr_fm_rx_al_pa_reg) & 0xFF00) >> 8; if (tachyon_status & OSM_FROZEN) { reset_tachyon(fi, ERROR_RELEASE); reset_tachyon(fi, OCQ_RESET); } /* Fix for B34 */ tx_logi(fi, ELS_PLOGI, fi->g.my_id); if (!fi->g.port_discovery && !fi->g.perform_adisc) { if (bad_alpa != 0xFE) DPRINTK("Bad AL_PA = %x", bad_alpa); } else { if ((fi->g.perform_adisc == TRUE) && (bad_alpa == 0x00)) { DPRINTK1("Performing ADISC..."); fi->g.fabric_present = FALSE; perform_adisc(fi); } } } if (fm_status & LIPF_RECEIVED){ DPRINTK("LIP(F8) Received"); } if (fm_status & LINK_FAILURE) { if (fm_status & LOSS_OF_SIGNAL) DPRINTK1("Detected Loss of Signal."); if (fm_status & OUT_OF_SYNC) DPRINTK1("Detected Loss of Synchronization."); } if (fm_status & TRANSMIT_PARITY_ERROR) { /* Bad! Should not happen. Solution-> Hard Reset. */ T_MSG("Parity Error. Perform Hard Reset!"); } if (fi->g.alpa_list_index >= MAX_NODES){ if (fi->g.port_discovery == TRUE) { fi->g.port_discovery = FALSE; add_display_cache_timer(fi); } fi->g.alpa_list_index = MAX_NODES; } if (fi->g.port_discovery == TRUE) local_port_discovery(fi); LEAVE("handle_FM_interrupt"); return; } static void local_port_discovery(struct fc_info *fi) { if (fi->g.loop_up == TRUE) { /* If this is not here, some of the Bad AL_PAs are missed. */ udelay(20); if ((fi->g.alpa_list_index == 0) && (fi->g.fabric_present == FALSE)){ tx_logi(fi, ELS_FLOGI, F_PORT); } else { int login_state = sid_logged_in(fi, fi->g.my_ddaa | alpa_list[fi->g.alpa_list_index]); while ((fi->g.alpa_list_index == 0) || ((fi->g.alpa_list_index < MAX_NODES) && ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN) || (alpa_list[fi->g.alpa_list_index] == (fi->g.my_id & 0xFF))))) fi->g.alpa_list_index++; if (fi->g.alpa_list_index < MAX_NODES) tx_logi(fi, ELS_PLOGI, alpa_list[fi->g.alpa_list_index]); } fi->g.alpa_list_index++; if (fi->g.alpa_list_index >= MAX_NODES){ if (fi->g.port_discovery == TRUE) { fi->g.port_discovery = FALSE; add_display_cache_timer(fi); } fi->g.alpa_list_index = MAX_NODES; } } } static void nos_ols_timer(unsigned long data) { struct fc_info *fi = (struct fc_info*)data; u_int fm_status; fm_status = readl(fi->t_r.ptr_fm_status_reg); DPRINTK1("FM_status in timer= %x", fm_status); fi->g.nport_timer_set = FALSE; del_timer(&fi->nport_timer); if ((fi->g.ptp_up == TRUE) || (fi->g.loop_up == TRUE)) return; if (((fm_status & 0xF0) == OLD_PORT) && (((fm_status & 0x0F) == PORT_STATE_ACTIVE) || ((fm_status & 0x0F) == PORT_STATE_OFFLINE))) { DPRINTK1("In OLD-PORT after E_D_TOV."); take_tachyon_offline(fi); /* write R_T_TOV & E_D_TOV into the registers */ writel(PTP_TOV_VALUES, fi->t_r.ptr_fm_tov_reg); writel(BB_CREDIT | NPORT, fi->t_r.ptr_fm_config_reg); fi->g.n_port_try = TRUE; DPRINTK1("In timer, TACHYON initializing as N_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } else if ((fi->g.lport_timer_set == FALSE) && ((fm_status & 0xF0) == LOOP_FAIL)) { DPRINTK1("Loop Fail after E_D_TOV."); fi->lport_timer.function = loop_timer; fi->lport_timer.data = (unsigned long)fi; fi->lport_timer.expires = RUN_AT((8*HZ)/100); init_timer(&fi->lport_timer); add_timer(&fi->lport_timer); fi->g.lport_timer_set = TRUE; take_tachyon_offline(fi); reset_tachyon(fi, SOFTWARE_RESET); } else if (((fm_status & 0xF0) == OLD_PORT) && (((fm_status & 0x0F) == PORT_STATE_LF1) || ((fm_status & 0x0F) == PORT_STATE_LF2))) { DPRINTK1("Link Fail-II in OLD-PORT."); take_tachyon_offline(fi); reset_tachyon(fi, SOFTWARE_RESET); } } static void loop_timer(unsigned long data) { struct fc_info *fi = (struct fc_info*)data; fi->g.lport_timer_set = FALSE; del_timer(&fi->lport_timer); if ((fi->g.ptp_up == TRUE) || (fi->g.loop_up == TRUE)) return; } static void add_display_cache_timer(struct fc_info *fi) { fi->display_cache_timer.function = display_cache_timer; fi->display_cache_timer.data = (unsigned long)fi; fi->display_cache_timer.expires = RUN_AT(fi->num_nodes * HZ); init_timer(&fi->display_cache_timer); add_timer(&fi->display_cache_timer); } static void display_cache_timer(unsigned long data) { struct fc_info *fi = (struct fc_info*)data; del_timer(&fi->display_cache_timer); display_cache(fi); return; } static void reset_tachyon(struct fc_info *fi, u_int value) { u_int tachyon_status, reset_done = OCQ_RESET_STATUS | SCSI_FREEZE_STATUS; int not_done = 1, i = 0; writel(value, fi->t_r.ptr_tach_control_reg); if (value == OCQ_RESET) fi->q.ocq_prod_indx = 0; tachyon_status = readl(fi->t_r.ptr_tach_status_reg); /* Software resets are immediately done, whereas other aren't. It about 30 clocks to do the reset */ if (value != SOFTWARE_RESET) { while(not_done) { if (i++ > 100000) { T_MSG("Reset was unsuccessful! Tachyon Status = %x", tachyon_status); break; } tachyon_status = readl(fi->t_r.ptr_tach_status_reg); if ((tachyon_status & reset_done) == 0) not_done = 0; } } else { write_to_tachyon_registers(fi); } } static void take_tachyon_offline(struct fc_info *fi) { u_int fm_status = readl(fi->t_r.ptr_fm_status_reg); /* The first two conditions will never be true. The Manual and * the errata say this. But the current implementation is * decently stable. */ //if ((fm_status & 0xF0) == LOOP_FAIL) { if (fm_status == LOOP_FAIL) { // workaround as in P. 89 writel(HOST_CONTROL, fi->t_r.ptr_fm_control_reg); if (fi->g.loop_up == TRUE) writel(SOFTWARE_RESET, fi->t_r.ptr_tach_control_reg); else { writel(OFFLINE, fi->t_r.ptr_fm_control_reg); writel(EXIT_HOST_CONTROL, fi->t_r.ptr_fm_control_reg); } } else //if ((fm_status & LOOP_UP) == LOOP_UP) { if (fm_status == LOOP_UP) { writel(SOFTWARE_RESET, fi->t_r.ptr_tach_control_reg); } else writel(OFFLINE, fi->t_r.ptr_fm_control_reg); } static void read_novram(struct fc_info *fi) { int off = 0; fi->n_r.ptr_novram_hw_control_reg = fi->i_r.ptr_ichip_hw_control_reg; fi->n_r.ptr_novram_hw_status_reg = fi->i_r.ptr_ichip_hw_status_reg; iph5526_nr_do_init(fi); if (fi->clone_id == PCI_VENDOR_ID_INTERPHASE) off = 32; fi->g.my_node_name_high = (fi->n_r.data[off] << 16) | fi->n_r.data[off+1]; fi->g.my_node_name_low = (fi->n_r.data[off+2] << 16) | fi->n_r.data[off+3]; fi->g.my_port_name_high = (fi->n_r.data[off+4] << 16) | fi->n_r.data[off+5]; fi->g.my_port_name_low = (fi->n_r.data[off+6] << 16) | fi->n_r.data[off+7]; DPRINTK("node_name = %x %x", fi->g.my_node_name_high, fi->g.my_node_name_low); DPRINTK("port_name = %x %x", fi->g.my_port_name_high, fi->g.my_port_name_low); } static void reset_ichip(struct fc_info *fi) { /* (i)chip reset */ writel(ICHIP_HCR_RESET, fi->i_r.ptr_ichip_hw_control_reg); /*wait for chip to get reset */ udelay(10000); /*de-assert reset */ writel(ICHIP_HCR_DERESET, fi->i_r.ptr_ichip_hw_control_reg); /* enable INT lines on the (i)chip */ writel(ICHIP_HCR_ENABLE_INTA , fi->i_r.ptr_ichip_hw_control_reg); /* enable byte swap */ writel(ICHIP_HAMR_BYTE_SWAP_ADDR_TR, fi->i_r.ptr_ichip_hw_addr_mask_reg); } static void tx_logi(struct fc_info *fi, u_int logi, u_int d_id) { int int_required = 1; u_short ox_id = OX_ID_FIRST_SEQUENCE; u_int r_ctl = RCTL_ELS_UCTL; u_int type = TYPE_ELS | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; u_int my_mtu = fi->g.my_mtu; ENTER("tx_logi"); /* We dont want interrupted for our own logi. * It screws up the port discovery process. */ if (d_id == fi->g.my_id) int_required = 0; fill_login_frame(fi, logi); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.login, sizeof(LOGIN)); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),sizeof(LOGIN), r_ctl, type, d_id, my_mtu, int_required, ox_id, logi); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_logi"); return; } static void tx_logi_acc(struct fc_info *fi, u_int logi, u_int d_id, u_short received_ox_id) { int int_required = 0; u_int r_ctl = RCTL_ELS_SCTL; u_int type = TYPE_ELS | EXCHANGE_RESPONDER | LAST_SEQUENCE; u_int my_mtu = fi->g.my_mtu; ENTER("tx_logi_acc"); fill_login_frame(fi, logi); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.login, sizeof(LOGIN)); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),sizeof(LOGIN), r_ctl, type, d_id, my_mtu, int_required, received_ox_id, logi); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_logi_acc"); return; } static void tx_prli(struct fc_info *fi, u_int command_code, u_int d_id, u_short received_ox_id) { int int_required = 1; u_int r_ctl = RCTL_ELS_UCTL; u_int type = TYPE_ELS | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; u_int my_mtu = fi->g.my_mtu; ENTER("tx_prli"); if (command_code == ELS_PRLI) fi->g.prli.cmnd_code = htons((ELS_PRLI | PAGE_LEN) >> 16); else { fi->g.prli.cmnd_code = htons((ELS_ACC | PAGE_LEN) >> 16); int_required = 0; type = TYPE_ELS | EXCHANGE_RESPONDER | LAST_SEQUENCE; r_ctl = RCTL_ELS_SCTL; } fi->g.prli.payload_length = htons(PRLI_LEN); fi->g.prli.type_code = htons(FCP_TYPE_CODE); fi->g.prli.est_image_pair = htons(IMAGE_PAIR); fi->g.prli.responder_pa = 0; fi->g.prli.originator_pa = 0; fi->g.prli.service_params = htonl(INITIATOR_FUNC | READ_XFER_RDY_DISABLED); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.prli, sizeof(PRLI)); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]), sizeof(PRLI), r_ctl, type, d_id, my_mtu, int_required, received_ox_id, command_code); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_prli"); return; } static void tx_logo(struct fc_info *fi, u_int d_id, u_short received_ox_id) { int int_required = 1; u_int r_ctl = RCTL_ELS_UCTL; u_int type = TYPE_ELS | EXCHANGE_RESPONDER | SEQUENCE_RESPONDER | FIRST_SEQUENCE | END_SEQUENCE | SEQUENCE_INITIATIVE; int size = sizeof(LOGO); char fc_id[3]; u_int my_mtu = fi->g.my_mtu; ENTER("tx_logo"); fi->g.logo.logo_cmnd = htonl(ELS_LOGO); fi->g.logo.reserved = 0; memcpy(fc_id, &(fi->g.my_id), 3); fi->g.logo.n_port_id_0 = fc_id[0]; fi->g.logo.n_port_id_1 = fc_id[1]; fi->g.logo.n_port_id_2 = fc_id[2]; fi->g.logo.port_name_up = htonl(N_PORT_NAME_HIGH); fi->g.logo.port_name_low = htonl(N_PORT_NAME_LOW); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.logo, sizeof(LOGO)); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, received_ox_id, ELS_LOGO); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_logo"); } static void tx_adisc(struct fc_info *fi, u_int cmnd_code, u_int d_id, u_short received_ox_id) { int int_required = 0; u_int r_ctl = RCTL_ELS_SCTL; u_int type = TYPE_ELS | EXCHANGE_RESPONDER | SEQUENCE_RESPONDER | FIRST_SEQUENCE | END_SEQUENCE; int size = sizeof(ADISC); u_int my_mtu = fi->g.my_mtu; fi->g.adisc.ls_cmnd_code = htonl(cmnd_code); fi->g.adisc.hard_address = htonl(0); fi->g.adisc.port_name_high = htonl(N_PORT_NAME_HIGH); fi->g.adisc.port_name_low = htonl(N_PORT_NAME_LOW); fi->g.adisc.node_name_high = htonl(NODE_NAME_HIGH); fi->g.adisc.node_name_low = htonl(NODE_NAME_LOW); fi->g.adisc.n_port_id = htonl(fi->g.my_id); if (cmnd_code == ELS_ADISC) { int_required = 1; r_ctl = RCTL_ELS_UCTL; type = TYPE_ELS | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; } fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.adisc, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, received_ox_id, cmnd_code); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; } static void tx_ls_rjt(struct fc_info *fi, u_int d_id, u_short received_ox_id, u_short reason_code, u_short expln_code) { int int_required = 0; u_int r_ctl = RCTL_ELS_SCTL; u_int type = TYPE_ELS | EXCHANGE_RESPONDER | LAST_SEQUENCE; int size = sizeof(LS_RJT); u_int my_mtu = fi->g.my_mtu; ENTER("tx_ls_rjt"); fi->g.ls_rjt.cmnd_code = htonl(ELS_LS_RJT); fi->g.ls_rjt.reason_code = htonl((reason_code << 16) | expln_code); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.ls_rjt, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, received_ox_id, ELS_LS_RJT); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_ls_rjt"); } static void tx_abts(struct fc_info *fi, u_int d_id, u_short ox_id) { int int_required = 1; u_int r_ctl = RCTL_BASIC_ABTS; u_int type = TYPE_BLS | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; int size = 0; u_int my_mtu = fi->g.my_mtu; ENTER("tx_abts"); fi->g.type_of_frame = FC_BLS; tx_exchange(fi, NULL, size, r_ctl, type, d_id, my_mtu, int_required, ox_id, RCTL_BASIC_ABTS); LEAVE("tx_abts"); } static u_int plogi_ok(struct fc_info *fi, u_int *buff_addr, int size) { int ret_code = 0; u_short mtu = ntohl(*(buff_addr + 10)) & 0x00000FFF; u_short class3 = ntohl(*(buff_addr + 25)) >> 16; u_short class3_conc_seq = ntohl(*(buff_addr + 27)) >> 16; u_short open_seq = ntohl(*(buff_addr + 28)) >> 16; DPRINTK1("mtu = %x class3 = %x conc_seq = %x open_seq = %x", mtu, class3, class3_conc_seq, open_seq); size -= TACHYON_HEADER_LEN; if (!(class3 & 0x8000)) { DPRINTK1("Received PLOGI with class3 = %x", class3); ret_code = (LOGICAL_ERR << 16) | NO_EXPLN; return ret_code; } if (mtu < 256) { DPRINTK1("Received PLOGI with MTU set to %x", mtu); ret_code = (LOGICAL_ERR << 16) | RECV_FIELD_SIZE; return ret_code; } if (size != PLOGI_LEN) { DPRINTK1("Received PLOGI of size %x", size); ret_code = (LOGICAL_ERR << 16) | INV_PAYLOAD_LEN; return ret_code; } if (class3_conc_seq == 0) { DPRINTK1("Received PLOGI with conc_seq == 0"); ret_code = (LOGICAL_ERR << 16) | CONC_SEQ; return ret_code; } if (open_seq == 0) { DPRINTK1("Received PLOGI with open_seq == 0"); ret_code = (LOGICAL_ERR << 16) | NO_EXPLN; return ret_code; } /* Could potentially check for more fields, but might end up not talking to most of the devices. ;-) */ /* Things that could get checked are: common_features = 0x8800 total_concurrent_seq = at least 1 */ return ret_code; } static void tx_acc(struct fc_info *fi, u_int d_id, u_short received_ox_id) { int int_required = 0; u_int r_ctl = RCTL_ELS_SCTL; u_int type = TYPE_ELS | EXCHANGE_RESPONDER | LAST_SEQUENCE; int size = sizeof(ACC); u_int my_mtu = fi->g.my_mtu; ENTER("tx_acc"); fi->g.acc.cmnd_code = htonl(ELS_ACC); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.acc, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, received_ox_id, ELS_ACC); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_acc"); } static void tx_name_server_req(struct fc_info *fi, u_int req) { int int_required = 1, i, size = 0; u_short ox_id = OX_ID_FIRST_SEQUENCE; u_int type = TYPE_FC_SERVICES | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; u_int r_ctl = FC4_DEVICE_DATA | UNSOLICITED_CONTROL; u_int my_mtu = fi->g.my_mtu, d_id = DIRECTORY_SERVER; CT_HDR ct_hdr; ENTER("tx_name_server_req"); /* Fill up CT_Header */ ct_hdr.rev_in_id = htonl(FC_CT_REV); ct_hdr.fs_type = DIRECTORY_SERVER_APP; ct_hdr.fs_subtype = NAME_SERVICE; ct_hdr.options = 0; ct_hdr.resv1 = 0; ct_hdr.cmnd_resp_code = htons(req >> 16); ct_hdr.max_res_size = 0; ct_hdr.resv2 = 0; ct_hdr.reason_code = 0; ct_hdr.expln_code = 0; ct_hdr.vendor_unique = 0; fi->g.type_of_frame = FC_ELS; switch(req) { case FCS_RFC_4: memcpy(&(fi->g.rfc_4.ct_hdr), &ct_hdr, sizeof(CT_HDR)); fi->g.rfc_4.s_id = htonl(fi->g.my_id); for (i = 0; i < 32; i++) fi->g.rfc_4.bit_map[i] = 0; /* We support IP & SCSI */ fi->g.rfc_4.bit_map[2] = 0x01; fi->g.rfc_4.bit_map[3] = 0x20; size = sizeof(RFC_4); memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.rfc_4, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, ox_id, req); break; case FCS_GP_ID4: memcpy(&(fi->g.gp_id4.ct_hdr), &ct_hdr, sizeof(CT_HDR)); fi->g.gp_id4.port_type = htonl(PORT_TYPE_NX_PORTS); size = sizeof(GP_ID4); memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.gp_id4, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, ox_id, req); break; } fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_name_server_req"); } static void tx_scr(struct fc_info *fi) { int int_required = 1, size = sizeof(SCR); u_short ox_id = OX_ID_FIRST_SEQUENCE; u_int type = TYPE_ELS | SEQUENCE_INITIATIVE | FIRST_SEQUENCE; u_int r_ctl = RCTL_ELS_UCTL; u_int my_mtu = fi->g.my_mtu, d_id = FABRIC_CONTROLLER; ENTER("tx_scr"); fi->g.scr.cmnd_code = htonl(ELS_SCR); fi->g.scr.reg_function = htonl(FULL_REGISTRATION); fi->g.type_of_frame = FC_ELS; memcpy(fi->g.els_buffer[fi->g.e_i], &fi->g.scr, size); tx_exchange(fi, (char *)(fi->g.els_buffer[fi->g.e_i]),size, r_ctl, type, d_id, my_mtu, int_required, ox_id, ELS_SCR); fi->g.e_i++; if (fi->g.e_i == MAX_PENDING_FRAMES) fi->g.e_i = 0; LEAVE("tx_scr"); } static void perform_adisc(struct fc_info *fi) { int count = 0; /* Will be set to TRUE when timer expires in a PLDA environment. */ fi->g.port_discovery = FALSE; if (fi->node_info_list) { struct fc_node_info *temp_list = fi->node_info_list; while(temp_list) { /* Tx ADISC to all non-fabric based * entities. */ if ((temp_list->d_id & 0xFF0000) != 0xFF0000) tx_adisc(fi, ELS_ADISC, temp_list->d_id, OX_ID_FIRST_SEQUENCE); temp_list = temp_list->next; udelay(20); count++; } } /* Perform Port Discovery after timer expires. * We are giving time for the ADISCed nodes to respond * so that we dont have to perform PLOGI to those whose * login are _still_ valid. */ fi->explore_timer.function = port_discovery_timer; fi->explore_timer.data = (unsigned long)fi; fi->explore_timer.expires = RUN_AT((count*3*HZ)/100); init_timer(&fi->explore_timer); add_timer(&fi->explore_timer); } static void explore_fabric(struct fc_info *fi, u_int *buff_addr) { u_int *addr = buff_addr + 12; /* index into payload */ u_char control_code; u_int d_id; int count = 0; ENTER("explore_fabric"); DPRINTK1("entering explore_fabric"); /*fi->g.perform_adisc = TRUE; fi->g.explore_fabric = TRUE; perform_adisc(fi);*/ do { d_id = ntohl(*addr) & 0x00FFFFFF; if (d_id != fi->g.my_id) { if (sid_logged_in(fi, d_id) == NODE_NOT_PRESENT) tx_logi(fi, ELS_PLOGI, d_id); else if (sid_logged_in(fi, d_id) == NODE_LOGGED_OUT) tx_adisc(fi, ELS_ADISC, d_id, OX_ID_FIRST_SEQUENCE); count++; } control_code = (ntohl(*addr) & 0xFF000000) >> 24; addr++; DPRINTK1("cc = %x, d_id = %x", control_code, d_id); } while (control_code != 0x80); fi->explore_timer.function = fabric_explore_timer; fi->explore_timer.data = (unsigned long)fi; /* We give 30 msec for each device to respond and then send out * our SCSI enquiries. */ fi->explore_timer.expires = RUN_AT((count*3*HZ)/100); init_timer(&fi->explore_timer); add_timer(&fi->explore_timer); DPRINTK1("leaving explore_fabric"); LEAVE("explore_fabric"); } static void fabric_explore_timer(unsigned long data) { struct fc_info *fi = (struct fc_info*)data; del_timer(&fi->explore_timer); if ((fi->g.loop_up == TRUE) && (fi->g.ptp_up == FALSE)) { /* Initiate Local Port Discovery on the Local Loop. */ fi->g.port_discovery = TRUE; fi->g.alpa_list_index = 1; local_port_discovery(fi); } fi->g.explore_fabric = FALSE; return; } static void port_discovery_timer(unsigned long data) { struct fc_info *fi = (struct fc_info*)data; del_timer(&fi->explore_timer); if ((fi->g.loop_up == TRUE) && (fi->g.explore_fabric != TRUE)) { fi->g.port_discovery = TRUE; fi->g.alpa_list_index = 1; local_port_discovery(fi); } fi->g.perform_adisc = FALSE; return; } static void add_to_ox_id_list(struct fc_info *fi, u_int transaction_id, u_int cmnd_code) { struct ox_id_els_map *p, *q = fi->ox_id_list, *r = NULL; int size = sizeof(struct ox_id_els_map); while (q != NULL) { r = q; q = q->next; } p = (struct ox_id_els_map *)kmalloc(size, GFP_ATOMIC); if (p == NULL) { T_MSG("kmalloc failed in add_to_ox_id_list()"); return; } p->ox_id = transaction_id; p->els = cmnd_code; p->next = NULL; if (fi->ox_id_list == NULL) fi->ox_id_list = p; else r->next = p; return; } static u_int remove_from_ox_id_list(struct fc_info *fi, u_short received_ox_id) { struct ox_id_els_map *p = fi->ox_id_list, *q = fi->ox_id_list; u_int els_type; while (q != NULL) { if (q->ox_id == received_ox_id) { if (q == fi->ox_id_list) fi->ox_id_list = fi->ox_id_list->next; else if (q->next == NULL) p->next = NULL; else p->next = q->next; els_type = q->els; kfree(q); return els_type; } p = q; q = q->next; } if (q == NULL) DPRINTK2("Could not find ox_id %x in ox_id_els_map", received_ox_id); return 0; } static void build_tachyon_header(struct fc_info *fi, u_int my_id, u_int r_ctl, u_int d_id, u_int type, u_char seq_id, u_char df_ctl, u_short ox_id, u_short rx_id, char *data) { u_char alpa = d_id & 0x0000FF; u_int dest_ddaa = d_id &0xFFFF00; ENTER("build_tachyon_header"); DPRINTK("d_id = %x, my_ddaa = %x", d_id, fi->g.my_ddaa); /* Does it have to go to/thru a Fabric? */ if ((dest_ddaa != 0) && ((d_id == F_PORT) || (fi->g.fabric_present && (dest_ddaa != fi->g.my_ddaa)))) alpa = 0x00; fi->g.tach_header.resv = 0x00000000; fi->g.tach_header.sof_and_eof = SOFI3 | EOFN; fi->g.tach_header.dest_alpa = alpa; /* Set LCr properly to have enuff credit */ if (alpa == REPLICATE) fi->g.tach_header.lcr_and_time_stamp = htons(0xC00);/* LCr=3 */ else fi->g.tach_header.lcr_and_time_stamp = 0; fi->g.tach_header.r_ctl_and_d_id = htonl(r_ctl | d_id); fi->g.tach_header.vc_id_and_s_id = htonl(my_id); fi->g.tach_header.type_and_f_cntl = htonl(type); fi->g.tach_header.seq_id = seq_id; fi->g.tach_header.df_cntl = df_ctl; fi->g.tach_header.seq_cnt = 0; fi->g.tach_header.ox_id = htons(ox_id); fi->g.tach_header.rx_id = htons(rx_id); fi->g.tach_header.ro = 0; if (data) { /* We use the Seq_Count to keep track of IP frames in the * OCI_interrupt handler. Initial Seq_Count of IP frames is 1. */ if (fi->g.type_of_frame == FC_BROADCAST) fi->g.tach_header.seq_cnt = htons(0x1); else fi->g.tach_header.seq_cnt = htons(0x2); fi->g.tach_header.nw_header.d_naa = htons(0x1000); fi->g.tach_header.nw_header.s_naa = htons(0x1000); memcpy(&(fi->g.tach_header.nw_header.dest_high), data, 2); memcpy(&(fi->g.tach_header.nw_header.dest_low), data + 2, 4); memcpy(&(fi->g.tach_header.nw_header.source_high), data + 6, 2); memcpy(&(fi->g.tach_header.nw_header.source_low), data + 8, 4); } LEAVE("build_tachyon_header"); } static void build_EDB(struct fc_info *fi, char *data, u_short flags, u_short len) { fi->g.edb.buf_addr = ntohl((u_int)virt_to_bus(data)); fi->g.edb.ehf = ntohs(flags); if (len % 4) len += (4 - (len % 4)); fi->g.edb.buf_len = ntohs(len); } static void build_ODB(struct fc_info *fi, u_char seq_id, u_int d_id, u_int len, u_int cntl, u_short mtu, u_short ox_id, u_short rx_id, int NW_header, int int_required, u_int frame_class) { fi->g.odb.seq_d_id = htonl(seq_id << 24 | d_id); fi->g.odb.tot_len = len; if (NW_header) fi->g.odb.tot_len += NW_HEADER_LEN; if (fi->g.odb.tot_len % 4) fi->g.odb.tot_len += (4 - (fi->g.odb.tot_len % 4)); fi->g.odb.tot_len = htonl(fi->g.odb.tot_len); switch(int_required) { case NO_COMP_AND_INT: fi->g.odb.cntl = htons(ODB_CLASS_3 | ODB_EE_CREDIT | ODB_NO_INT | ODB_NO_COMP | cntl); break; case INT_AND_COMP_REQ: fi->g.odb.cntl = htons(ODB_CLASS_3 | ODB_EE_CREDIT | cntl); break; case NO_INT_COMP_REQ: fi->g.odb.cntl = htons(ODB_CLASS_3 | ODB_EE_CREDIT | ODB_NO_INT | cntl); break; } fi->g.odb.rx_id = htons(rx_id); fi->g.odb.cs_enable = 0; fi->g.odb.cs_seed = htons(1); fi->g.odb.hdr_addr = htonl(virt_to_bus(fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx])); fi->g.odb.frame_len = htons(mtu); if (NW_header) { /* The pointer to the sk_buff is in here. Freed up when the * OCI_interrupt is received. */ fi->g.odb.trans_id = htonl(frame_class); fi->g.odb.hdr_len = TACHYON_HEADER_LEN + NW_HEADER_LEN; } else { /* helps in tracking transmitted OX_IDs */ fi->g.odb.trans_id = htonl((frame_class & 0xFFFF0000) | ox_id); fi->g.odb.hdr_len = TACHYON_HEADER_LEN; } fi->g.odb.hdr_len = htons(fi->g.odb.hdr_len); fi->g.odb.edb_addr = htonl(virt_to_bus(fi->q.ptr_edb[fi->q.edb_buffer_indx])); } static void fill_login_frame(struct fc_info *fi, u_int logi) { int i; fi->g.login.ls_cmnd_code= htonl(logi); fi->g.login.fc_ph_version = htons(PH_VERSION); if (fi->g.loop_up) fi->g.login.buff_to_buff_credit = htons(LOOP_BB_CREDIT); else if (fi->g.ptp_up) fi->g.login.buff_to_buff_credit = htons(PT2PT_BB_CREDIT); if ((logi != ELS_FLOGI) || (logi == ELS_ACC)) fi->g.login.common_features = htons(PLOGI_C_F); else if (logi == ELS_FLOGI) fi->g.login.common_features = htons(FLOGI_C_F); fi->g.login.recv_data_field_size = htons(FRAME_SIZE); fi->g.login.n_port_total_conc_seq = htons(CONCURRENT_SEQUENCES); fi->g.login.rel_off_by_info_cat = htons(RO_INFO_CATEGORY); fi->g.login.ED_TOV = htonl(E_D_TOV); fi->g.login.n_port_name_high = htonl(N_PORT_NAME_HIGH); fi->g.login.n_port_name_low = htonl(N_PORT_NAME_LOW); fi->g.login.node_name_high = htonl(NODE_NAME_HIGH); fi->g.login.node_name_low = htonl(NODE_NAME_LOW); /* Fill Class 1 parameters */ fi->g.login.c_of_s[0].service_options = htons(0); fi->g.login.c_of_s[0].initiator_ctl = htons(0); fi->g.login.c_of_s[0].recipient_ctl = htons(0); fi->g.login.c_of_s[0].recv_data_field_size = htons(0); fi->g.login.c_of_s[0].concurrent_sequences = htons(0); fi->g.login.c_of_s[0].n_port_end_to_end_credit = htons(0); fi->g.login.c_of_s[0].open_seq_per_exchange = htons(0); fi->g.login.c_of_s[0].resv = htons(0); /* Fill Class 2 parameters */ fi->g.login.c_of_s[1].service_options = htons(0); fi->g.login.c_of_s[1].initiator_ctl = htons(0); fi->g.login.c_of_s[1].recipient_ctl = htons(0); fi->g.login.c_of_s[1].recv_data_field_size = htons(0); fi->g.login.c_of_s[1].concurrent_sequences = htons(0); fi->g.login.c_of_s[1].n_port_end_to_end_credit = htons(0); fi->g.login.c_of_s[1].open_seq_per_exchange = htons(0); fi->g.login.c_of_s[1].resv = htons(0); /* Fill Class 3 parameters */ if (logi == ELS_FLOGI) fi->g.login.c_of_s[2].service_options = htons(SERVICE_VALID | SEQUENCE_DELIVERY); else fi->g.login.c_of_s[2].service_options = htons(SERVICE_VALID); fi->g.login.c_of_s[2].initiator_ctl = htons(0); fi->g.login.c_of_s[2].recipient_ctl = htons(0); fi->g.login.c_of_s[2].recv_data_field_size = htons(FRAME_SIZE); fi->g.login.c_of_s[2].concurrent_sequences = htons(CLASS3_CONCURRENT_SEQUENCE); fi->g.login.c_of_s[2].n_port_end_to_end_credit = htons(0); fi->g.login.c_of_s[2].open_seq_per_exchange = htons(CLASS3_OPEN_SEQUENCE); fi->g.login.c_of_s[2].resv = htons(0); for(i = 0; i < 4; i++) { fi->g.login.resv[i] = 0; fi->g.login.vendor_version_level[i] = 0; } } /* clear the Interrupt Latch on the (i)chip, so that you can receive * Interrupts from Tachyon in future */ static void reset_latch(struct fc_info *fi) { writel(readl(fi->i_r.ptr_ichip_hw_status_reg) | ICHIP_HSR_INT_LATCH, fi->i_r.ptr_ichip_hw_status_reg); } static void update_OCQ_indx(struct fc_info *fi) { fi->q.ocq_prod_indx++; if (fi->q.ocq_prod_indx == OCQ_LENGTH) fi->q.ocq_prod_indx = 0; writel(fi->q.ocq_prod_indx, fi->t_r.ptr_ocq_prod_indx_reg); } static void update_IMQ_indx(struct fc_info *fi, int count) { fi->q.imq_cons_indx += count; if (fi->q.imq_cons_indx >= IMQ_LENGTH) fi->q.imq_cons_indx -= IMQ_LENGTH; writel(fi->q.imq_cons_indx, fi->t_r.ptr_imq_cons_indx_reg); } static void update_SFSBQ_indx(struct fc_info *fi) { fi->q.sfsbq_prod_indx++; if (fi->q.sfsbq_prod_indx == SFSBQ_LENGTH) fi->q.sfsbq_prod_indx = 0; writel(fi->q.sfsbq_prod_indx, fi->t_r.ptr_sfsbq_prod_reg); } static void update_MFSBQ_indx(struct fc_info *fi, int count) { fi->q.mfsbq_prod_indx += count; if (fi->q.mfsbq_prod_indx >= MFSBQ_LENGTH) fi->q.mfsbq_prod_indx -= MFSBQ_LENGTH; writel(fi->q.mfsbq_prod_indx, fi->t_r.ptr_mfsbq_prod_reg); } static void update_tachyon_header_indx(struct fc_info *fi) { fi->q.tachyon_header_indx++; if (fi->q.tachyon_header_indx == NO_OF_TACH_HEADERS) fi->q.tachyon_header_indx = 0; } static void update_EDB_indx(struct fc_info *fi) { fi->q.edb_buffer_indx++; if (fi->q.edb_buffer_indx == EDB_LEN) fi->q.edb_buffer_indx = 0; } static int iph5526_open(struct net_device *dev) { netif_start_queue(dev); MOD_INC_USE_COUNT; return 0; } static int iph5526_close(struct net_device *dev) { netif_stop_queue(dev); MOD_DEC_USE_COUNT; return 0; } static void iph5526_timeout(struct net_device *dev) { struct fc_info *fi = (struct fc_info*)dev->priv; printk(KERN_WARNING "%s: timed out on send.\n", dev->name); fi->fc_stats.rx_dropped++; dev->trans_start = jiffies; netif_wake_queue(dev); } static int iph5526_send_packet(struct sk_buff *skb, struct net_device *dev) { struct fc_info *fi = (struct fc_info*)dev->priv; int status = 0; short type = 0; u_long flags; struct fcllc *fcllc; ENTER("iph5526_send_packet"); netif_stop_queue(dev); /* Strip off the pseudo header. */ skb->data = skb->data + 2*FC_ALEN; skb->len = skb->len - 2*FC_ALEN; fcllc = (struct fcllc *)skb->data; type = ntohs(fcllc->ethertype); spin_lock_irqsave(&fi->fc_lock, flags); switch(type) { case ETH_P_IP: status = tx_ip_packet(skb, skb->len, fi); break; case ETH_P_ARP: status = tx_arp_packet(skb->data, skb->len, fi); break; default: T_MSG("WARNING!!! Received Unknown Packet Type... Discarding..."); fi->fc_stats.rx_dropped++; break; } spin_unlock_irqrestore(&fi->fc_lock, flags); if (status) { fi->fc_stats.tx_bytes += skb->len; fi->fc_stats.tx_packets++; } else fi->fc_stats.rx_dropped++; dev->trans_start = jiffies; /* We free up the IP buffers in the OCI_interrupt handler. * status == 0 implies that the frame was not transmitted. So the * skb is freed here. */ if ((type == ETH_P_ARP) || (status == 0)) dev_kfree_skb(skb); else netif_wake_queue(dev); LEAVE("iph5526_send_packet"); return 0; } static int iph5526_change_mtu(struct net_device *dev, int mtu) { return 0; } static int tx_ip_packet(struct sk_buff *skb, unsigned long len, struct fc_info *fi) { u_int d_id; int int_required = 1; u_int r_ctl = FC4_DEVICE_DATA | UNSOLICITED_DATA; u_int type = TYPE_LLC_SNAP; u_short ox_id = OX_ID_FIRST_SEQUENCE; u_int mtu; struct fc_node_info *q; ENTER("tx_ip_packet"); q = look_up_cache(fi, skb->data - 2*FC_ALEN); if (q != NULL) { d_id = q->d_id; DPRINTK("Look-Up Cache Succeeded for d_id = %x", d_id); mtu = q->mtu; if (q->login == LOGIN_COMPLETED){ fi->g.type_of_frame = FC_IP; return tx_exchange(fi, skb->data, len, r_ctl, type, d_id, mtu, int_required, ox_id, virt_to_bus(skb)); } if (q->d_id == BROADCAST) { struct fc_node_info *p = fi->node_info_list; int return_value = FALSE; fi->g.type_of_frame = FC_BROADCAST; /* Do unicast to local nodes. */ int_required = 0; while(p != NULL) { d_id = p->d_id; if ((d_id & 0xFFFF00) == fi->g.my_ddaa) return_value |= tx_exchange(fi, skb->data, len, r_ctl, type, d_id, fi->g.my_mtu, int_required, ox_id, TYPE_LLC_SNAP); p = p->next; } kfree(q); return return_value; } if (q->login != LOGIN_COMPLETED) { DPRINTK1("Node not logged in... Txing PLOGI to %x", d_id); /* FIXME: we are dumping the frame here */ tx_logi(fi, ELS_PLOGI, d_id); } } DPRINTK2("Look-Up Cache Failed"); LEAVE("tx_ip_packet"); return 0; } static int tx_arp_packet(char *data, unsigned long len, struct fc_info *fi) { u_int opcode = data[ARP_OPCODE_0]; u_int d_id; int int_required = 0, return_value = FALSE; u_int r_ctl = FC4_DEVICE_DATA | UNSOLICITED_DATA; u_int type = TYPE_LLC_SNAP; u_short ox_id = OX_ID_FIRST_SEQUENCE; u_int my_mtu = fi->g.my_mtu; ENTER("tx_arp_packet"); opcode = opcode << 8 | data[ARP_OPCODE_1]; fi->g.type_of_frame = FC_IP; if (opcode == ARPOP_REQUEST) { struct fc_node_info *q = fi->node_info_list; d_id = BROADCAST; return_value |= tx_exchange(fi, data, len, r_ctl, type, d_id, my_mtu, int_required, ox_id, TYPE_LLC_SNAP); /* Some devices support HW_TYPE 0x01 */ memcpy(fi->g.arp_buffer, data - 2*FC_ALEN, len + 2*FC_ALEN); fi->g.arp_buffer[9 + 2*FC_ALEN] = 0x01; return_value |= tx_exchange(fi, (char *)(fi->g.arp_buffer + 2*FC_ALEN), len, r_ctl, type, d_id, my_mtu, int_required, ox_id, TYPE_LLC_SNAP); /* Do unicast to local nodes. */ while(q != NULL) { fi->g.type_of_frame = FC_BROADCAST; d_id = q->d_id; if ((d_id & 0xFFFF00) == fi->g.my_ddaa) { return_value |= tx_exchange(fi, data, len, r_ctl, type, d_id, my_mtu, int_required, ox_id, TYPE_LLC_SNAP); // Some devices support HW_TYPE 0x01 memcpy(fi->g.arp_buffer, data - 2*FC_ALEN, len + 2*FC_ALEN); fi->g.arp_buffer[9 + 2*FC_ALEN] = 0x01; return_value |= tx_exchange(fi, (char *)(fi->g.arp_buffer + 2*FC_ALEN), len, r_ctl, type, d_id, my_mtu, int_required, ox_id, TYPE_LLC_SNAP); } q = q->next; } return return_value; } else if (opcode == ARPOP_REPLY) { struct fc_node_info *q; u_int mtu; DPRINTK("We are sending out an ARP reply"); q = look_up_cache(fi, data - 2*FC_ALEN); if (q != NULL) { d_id = q->d_id; DPRINTK("Look-Up Cache Succeeded for d_id = %x", d_id); mtu = q->mtu; if (q->login == LOGIN_COMPLETED){ tx_exchange(fi, data, len, r_ctl, type, d_id, mtu, int_required, ox_id, TYPE_LLC_SNAP); /* Some devices support HW_TYPE 0x01 */ memcpy(fi->g.arp_buffer, data - 2*FC_ALEN, len + 2*FC_ALEN); fi->g.arp_buffer[9 + 2*FC_ALEN] = 0x01; return tx_exchange(fi, (char *)(fi->g.arp_buffer + 2*FC_ALEN), len, r_ctl, type, d_id, my_mtu, int_required, ox_id, TYPE_LLC_SNAP); } else { DPRINTK1("Node not logged in... Txing PLOGI to %x", d_id); tx_logi(fi, ELS_PLOGI, d_id); /* FIXME: we are dumping the frame here */ } } DPRINTK2("Look-Up Cache Failed"); } else { T_MSG("Warning!!! Invalid Opcode in ARP Packet!"); } LEAVE("tx_arp_packet"); return 0; } static void rx_net_packet(struct fc_info *fi, u_char *buff_addr, int payload_size) { struct net_device *dev = fi->dev; struct sk_buff *skb; u_int skb_size = 0; struct fch_hdr fch; ENTER("rx_net_packet"); skb_size = payload_size - TACHYON_HEADER_LEN; DPRINTK("skb_size = %d", skb_size); fi->fc_stats.rx_bytes += skb_size - 2; skb = dev_alloc_skb(skb_size); if (skb == NULL) { printk(KERN_NOTICE "%s: In rx_net_packet() Memory squeeze, dropping packet.\n", dev->name); fi->fc_stats.rx_dropped++; return; } /* Skip over the Tachyon Frame Header. */ buff_addr += TACHYON_HEADER_LEN; memcpy(fch.daddr, buff_addr + 2, FC_ALEN); memcpy(fch.saddr, buff_addr + 10, FC_ALEN); buff_addr += 2; memcpy(buff_addr, fch.daddr, FC_ALEN); memcpy(buff_addr + 6, fch.saddr, FC_ALEN); skb_reserve(skb, 2); memcpy(skb_put(skb, skb_size - 2), buff_addr, skb_size - 2); skb->dev = dev; skb->protocol = fc_type_trans(skb, dev); DPRINTK("protocol = %x", skb->protocol); /* Hmmm... to accept HW Type 0x01 as well... */ if (skb->protocol == ntohs(ETH_P_ARP)) skb->data[1] = 0x06; netif_rx(skb); fi->fc_stats.rx_packets++; LEAVE("rx_net_packet"); } static void rx_net_mfs_packet(struct fc_info *fi, struct sk_buff *skb) { struct net_device *dev = fi->dev; struct fch_hdr fch; ENTER("rx_net_mfs_packet"); /* Construct your Hard Header */ memcpy(fch.daddr, skb->data + 2, FC_ALEN); memcpy(fch.saddr, skb->data + 10, FC_ALEN); skb_pull(skb, 2); memcpy(skb->data, fch.daddr, FC_ALEN); memcpy(skb->data + 6, fch.saddr, FC_ALEN); skb->dev = dev; skb->protocol = fc_type_trans(skb, dev); DPRINTK("protocol = %x", skb->protocol); netif_rx(skb); LEAVE("rx_net_mfs_packet"); } unsigned short fc_type_trans(struct sk_buff *skb, struct net_device *dev) { struct fch_hdr *fch=(struct fch_hdr *)skb->data; struct fcllc *fcllc; skb->mac.raw = skb->data; fcllc = (struct fcllc *)(skb->data + sizeof(struct fch_hdr) + 2); skb_pull(skb,sizeof(struct fch_hdr) + 2); if(*fch->daddr & 1) { if(!memcmp(fch->daddr,dev->broadcast,FC_ALEN)) skb->pkt_type = PACKET_BROADCAST; else skb->pkt_type = PACKET_MULTICAST; } else if(dev->flags & IFF_PROMISC) { if(memcmp(fch->daddr, dev->dev_addr, FC_ALEN)) skb->pkt_type=PACKET_OTHERHOST; } /* Strip the SNAP header from ARP packets since we don't * pass them through to the 802.2/SNAP layers. */ if (fcllc->dsap == EXTENDED_SAP && (fcllc->ethertype == ntohs(ETH_P_IP) || fcllc->ethertype == ntohs(ETH_P_ARP))) { skb_pull(skb, sizeof(struct fcllc)); return fcllc->ethertype; } return ntohs(ETH_P_802_2); } static int tx_exchange(struct fc_info *fi, char *data, u_int len, u_int r_ctl, u_int type, u_int d_id, u_int mtu, int int_required, u_short tx_ox_id, u_int frame_class) { u_char df_ctl; int NW_flag = 0, h_size, return_value; u_short rx_id = RX_ID_FIRST_SEQUENCE; u_int tachyon_status; u_int my_id = fi->g.my_id; ENTER("tx_exchange"); tachyon_status = readl(fi->t_r.ptr_tach_status_reg); DPRINTK("Tachyon Status = %x len = %d MTU = %d", tachyon_status, len, mtu); if (tachyon_status & OSM_FROZEN) { reset_tachyon(fi, ERROR_RELEASE); reset_tachyon(fi, OCQ_RESET); DPRINTK("Tachyon Status = %x len = %d MTU = %d", tachyon_status, len, mtu); } if (tx_ox_id == OX_ID_FIRST_SEQUENCE) { switch(fi->g.type_of_frame) { case FC_SCSI_READ: tx_ox_id = fi->g.scsi_oxid | SCSI_READ_BIT; break; case FC_SCSI_WRITE: tx_ox_id = fi->g.scsi_oxid; break; default: tx_ox_id = fi->g.ox_id; break; } } else { switch(fi->g.type_of_frame) { case FC_SCSI_READ: rx_id = fi->g.scsi_oxid | SCSI_READ_BIT; break; case FC_SCSI_WRITE: rx_id = fi->g.scsi_oxid; break; case FC_BLS: rx_id = RX_ID_FIRST_SEQUENCE; break; default: rx_id = fi->g.ox_id; break; } } if (type == TYPE_LLC_SNAP) { df_ctl = 0x20; NW_flag = 1; /* Multi Frame Sequence ? If yes, set RO bit */ if (len > mtu) type |= RELATIVE_OFF_PRESENT; build_tachyon_header(fi, my_id, r_ctl, d_id, type, fi->g.seq_id, df_ctl, tx_ox_id, rx_id, data - 2*FC_ALEN); } else { df_ctl = 0; /* Multi Frame Sequence ? If yes, set RO bit */ if (len > mtu) type |= RELATIVE_OFF_PRESENT; build_tachyon_header(fi, my_id, r_ctl, d_id, type, fi->g.seq_id, df_ctl, tx_ox_id, rx_id, NULL); } /* Get free Tachyon Headers and EDBs */ if (get_free_header(fi) || get_free_EDB(fi)) return 0; if ((type & 0xFF000000) == TYPE_LLC_SNAP) { h_size = TACHYON_HEADER_LEN + NW_HEADER_LEN; memcpy(fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx], &(fi->g.tach_header), h_size); } else memcpy(fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx], &(fi->g.tach_header), TACHYON_HEADER_LEN); return_value = tx_sequence(fi, data, len, mtu, d_id, tx_ox_id, rx_id, fi->g.seq_id, NW_flag, int_required, frame_class); switch(fi->g.type_of_frame) { case FC_SCSI_READ: case FC_SCSI_WRITE: update_scsi_oxid(fi); break; case FC_BLS: break; default: fi->g.ox_id++; if (fi->g.ox_id == 0xFFFF) fi->g.ox_id = NOT_SCSI_XID; break; } if (fi->g.seq_id == MAX_SEQ_ID) fi->g.seq_id = 0; else fi->g.seq_id++; LEAVE("tx_exchange"); return return_value; } static int tx_sequence(struct fc_info *fi, char *data, u_int len, u_int mtu, u_int d_id, u_short ox_id, u_short rx_id, u_char seq_id, int NW_flag, int int_required, u_int frame_class) { u_int cntl = 0; int return_value; ENTER("tx_sequence"); build_EDB(fi, data, EDB_END, len); memcpy(fi->q.ptr_edb[fi->q.edb_buffer_indx], &(fi->g.edb), sizeof(EDB)); build_ODB(fi, seq_id, d_id, len, cntl, mtu, ox_id, rx_id, NW_flag, int_required, frame_class); memcpy(fi->q.ptr_odb[fi->q.ocq_prod_indx], &(fi->g.odb), sizeof(ODB)); if (fi->g.link_up != TRUE) { DPRINTK2("Fibre Channel Link not up. Dropping Exchange!"); return_value = FALSE; } else { /* To be on the safe side, a check should be included * at this point to check if we are overrunning * Tachyon. */ update_OCQ_indx(fi); return_value = TRUE; } update_EDB_indx(fi); update_tachyon_header_indx(fi); LEAVE("tx_sequence"); return return_value; } static int get_free_header(struct fc_info *fi) { u_short temp_ox_id; u_int *tach_header, initial_indx = fi->q.tachyon_header_indx; /* Check if the header is in use. * We could have an outstanding command. * We should find a free slot as we can queue a * maximum of 32 SCSI commands only. */ tach_header = fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx]; temp_ox_id = ntohl(*(tach_header + 6)) >> 16; /* We care about the SCSI writes only. Those are the wicked ones * that need an additional set of buffers. */ while(temp_ox_id <= MAX_SCSI_XID) { update_tachyon_header_indx(fi); if (fi->q.tachyon_header_indx == initial_indx) { /* Should never happen. */ T_MSG("No free Tachyon headers available"); reset_tachyon(fi, SOFTWARE_RESET); return 1; } tach_header = fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx]; temp_ox_id = ntohl(*(tach_header + 6)) >> 16; } return 0; } static int get_free_EDB(struct fc_info *fi) { unsigned int initial_indx = fi->q.edb_buffer_indx; /* Check if the EDB is in use. * We could have an outstanding SCSI Write command. * We should find a free slot as we can queue a * maximum of 32 SCSI commands only. */ while (fi->q.free_edb_list[fi->q.edb_buffer_indx] != EDB_FREE) { update_EDB_indx(fi); if (fi->q.edb_buffer_indx == initial_indx) { T_MSG("No free EDB buffers avaliable") reset_tachyon(fi, SOFTWARE_RESET); return 1; } } return 0; } static int validate_login(struct fc_info *fi, u_int *base_ptr) { struct fc_node_info *q = fi->node_info_list; char n_port_name[PORT_NAME_LEN]; char node_name[NODE_NAME_LEN]; u_int s_id; ENTER("validate_login"); /*index to Port Name in the payload. We need the 8 byte Port Name */ memcpy(n_port_name, base_ptr + 10, PORT_NAME_LEN); memcpy(node_name, base_ptr + 12, NODE_NAME_LEN); s_id = ntohl(*(base_ptr + 3)) & 0x00FFFFFF; /* check if Fibre Channel IDs have changed */ while(q != NULL) { if (memcmp(n_port_name, q->hw_addr, PORT_NAME_LEN) == 0) { if ((s_id != q->d_id) || (memcmp(node_name, q->node_name, NODE_NAME_LEN) != 0)) { DPRINTK1("Fibre Channel ID of Node has changed. Txing LOGO."); return 0; } q->login = LOGIN_COMPLETED; #if DEBUG_5526_2 display_cache(fi); #endif return 1; } q = q->next; } DPRINTK1("Port Name does not match. Txing LOGO."); return 0; LEAVE("validate_login"); } static void add_to_address_cache(struct fc_info *fi, u_int *base_ptr) { int size = sizeof(struct fc_node_info); struct fc_node_info *p, *q = fi->node_info_list, *r = NULL; char n_port_name[PORT_NAME_LEN]; u_int s_id; ENTER("add_to_address_cache"); /*index to Port Name in the payload. We need the 8 byte Port Name */ memcpy(n_port_name, base_ptr + 13, PORT_NAME_LEN); s_id = ntohl(*(base_ptr + 3)) & 0x00FFFFFF; /* check if info already exists */ while(q != NULL) { if (memcmp(n_port_name, q->hw_addr, PORT_NAME_LEN) == 0) { if (s_id != q->d_id) { memcpy(&(q->c_of_s[0]), base_ptr + 17, 3 * sizeof(CLASS_OF_SERVICE)); q->mtu = ntohl(*(base_ptr + 10)) & 0x00000FFF; q->d_id = s_id; memcpy(q->node_name, base_ptr + 15, NODE_NAME_LEN); } q->login = LOGIN_COMPLETED; q->scsi = FALSE; fi->num_nodes++; #if DEBUG_5526_2 display_cache(fi); #endif return; } r = q; q = q->next; } p = (struct fc_node_info *)kmalloc(size, GFP_ATOMIC); if (p == NULL) { T_MSG("kmalloc failed in add_to_address_cache()"); return; } memcpy(&(p->c_of_s[0]), base_ptr + 17, 3 * sizeof(CLASS_OF_SERVICE)); p->mtu = ntohl(*(base_ptr + 10)) & 0x00000FFF; p->d_id = s_id; memcpy(p->hw_addr, base_ptr + 13, PORT_NAME_LEN); memcpy(p->node_name, base_ptr + 15, NODE_NAME_LEN); p->login = LOGIN_COMPLETED; p->scsi = FALSE; p->target_id = 0xFF; p->next = NULL; if (fi->node_info_list == NULL) fi->node_info_list = p; else r->next = p; fi->num_nodes++; #if DEBUG_5526_2 display_cache(fi); #endif LEAVE("add_to_address_cache"); return; } static void remove_from_address_cache(struct fc_info *fi, u_int *base_ptr, u_int cmnd_code) { struct fc_node_info *q = fi->node_info_list; u_int s_id; ENTER("remove_from_address_cache"); s_id = ntohl(*(base_ptr + 3)) & 0x00FFFFFF; switch(cmnd_code) { case ELS_LOGO: /* check if info exists */ while (q != NULL) { if (s_id == q->d_id) { if (q->login == LOGIN_COMPLETED) q->login = LOGIN_ATTEMPTED; if (fi->num_nodes > 0) fi->num_nodes--; #if DEBUG_5526_2 display_cache(fi); #endif return; } q = q->next; } DPRINTK1("ELS_LOGO received from node 0x%x which is not logged-in", s_id); break; case ELS_RSCN: { int payload_len = ntohl(*(base_ptr + 8)) & 0xFF; int no_of_pages, i; u_char address_format; u_short received_ox_id = ntohl(*(base_ptr + 6)) >> 16; u_int node_id, mask, *page_ptr = base_ptr + 9; if ((payload_len < 4) || (payload_len > 256)) { DPRINTK1("RSCN with invalid payload length received"); tx_ls_rjt(fi, s_id, received_ox_id, LOGICAL_ERR, RECV_FIELD_SIZE); return; } /* Page_size includes the Command Code */ no_of_pages = (payload_len / 4) - 1; for (i = 0; i < no_of_pages; i++) { address_format = ntohl(*page_ptr) >> 24; node_id = ntohl(*page_ptr) & 0x00FFFFFF; switch(address_format) { case PORT_ADDRESS_FORMAT: rscn_handler(fi, node_id); break; case AREA_ADDRESS_FORMAT: case DOMAIN_ADDRESS_FORMAT: if (address_format == AREA_ADDRESS_FORMAT) mask = 0xFFFF00; else mask = 0xFF0000; while(q != NULL) { if ((q->d_id & mask) == (node_id & mask)) rscn_handler(fi, q->d_id); q = q->next; } /* There might be some new nodes to be * discovered. But, some of the earlier * requests as a result of the RSCN might be * in progress. We dont want to duplicate that * effort. So letz call SCR after a lag. */ fi->explore_timer.function = scr_timer; fi->explore_timer.data = (unsigned long)fi; fi->explore_timer.expires = RUN_AT((no_of_pages*3*HZ)/100); init_timer(&fi->explore_timer); add_timer(&fi->explore_timer); break; default: T_MSG("RSCN with invalid address format received"); tx_ls_rjt(fi, s_id, received_ox_id, LOGICAL_ERR, NO_EXPLN); } page_ptr += 1; } /* end of for loop */ } /* end of case RSCN: */ break; } #if DEBUG_5526_2 display_cache(fi); #endif LEAVE("remove_from_address_cache"); } static void rscn_handler(struct fc_info *fi, u_int node_id) { struct fc_node_info *q = fi->node_info_list; int login_state = sid_logged_in(fi, node_id); if ((login_state == NODE_LOGGED_IN) || (login_state == NODE_PROCESS_LOGGED_IN)) { while(q != NULL) { if (q->d_id == node_id) { q->login = LOGIN_ATTEMPTED; if (fi->num_nodes > 0) fi->num_nodes--; break; } else q = q->next; } } else if (login_state == NODE_LOGGED_OUT) tx_adisc(fi, ELS_ADISC, node_id, OX_ID_FIRST_SEQUENCE); else if (login_state == NODE_LOGGED_OUT) tx_logi(fi, ELS_PLOGI, node_id); } static void scr_timer(unsigned long data) { struct fc_info *fi = (struct fc_info *)data; del_timer(&fi->explore_timer); tx_name_server_req(fi, FCS_GP_ID4); } static int sid_logged_in(struct fc_info *fi, u_int s_id) { struct fc_node_info *temp = fi->node_info_list; while(temp != NULL) if ((temp->d_id == s_id) && (temp->login == LOGIN_COMPLETED)) { if (temp->scsi != FALSE) return NODE_PROCESS_LOGGED_IN; else return NODE_LOGGED_IN; } else if ((temp->d_id == s_id) && (temp->login != LOGIN_COMPLETED)) return NODE_LOGGED_OUT; else temp = temp->next; return NODE_NOT_PRESENT; } static void mark_scsi_sid(struct fc_info *fi, u_int *buff_addr, u_char action) { struct fc_node_info *temp = fi->node_info_list; u_int s_id; u_int service_params; s_id = ntohl(*(buff_addr + 3)) & 0x00FFFFFF; service_params = ntohl(*(buff_addr + 12)) & 0x000000F0; while(temp != NULL) if ((temp->d_id == s_id) && (temp->login == LOGIN_COMPLETED)) { if (action == DELETE_ENTRY) { temp->scsi = FALSE; #if DEBUG_5526_2 display_cache(fi); #endif return; } /* Check if it is a SCSI Target */ if (!(service_params & TARGET_FUNC)) { temp->scsi = INITIATOR; #if DEBUG_5526_2 display_cache(fi); #endif return; } temp->scsi = TARGET; /* This helps to maintain the target_id no matter what your * Fibre Channel ID is. */ if (temp->target_id == 0xFF) { if (fi->g.no_of_targets <= MAX_SCSI_TARGETS) temp->target_id = fi->g.no_of_targets++; else T_MSG("MAX TARGETS reached!"); } else DPRINTK1("Target_id %d already present", temp->target_id); #if DEBUG_5526_2 display_cache(fi); #endif return; } else temp = temp->next; return; } static int node_logged_in_prev(struct fc_info *fi, u_int *buff_addr) { struct fc_node_info *temp; u_char *data = (u_char *)buff_addr; u_int s_id; char node_name[NODE_NAME_LEN]; s_id = ntohl(*(buff_addr + 3)) & 0x00FFFFFF; memcpy(node_name, buff_addr + 12, NODE_NAME_LEN); /* point to port_name in the ADISC payload */ data += 10 * 4; /* point to last 6 bytes of port_name */ data += 2; temp = look_up_cache(fi, data); if (temp != NULL) { if ((temp->d_id == s_id) && (memcmp(node_name, temp->node_name, NODE_NAME_LEN) == 0)) { temp->login = LOGIN_COMPLETED; #if DEBUG_5526_2 display_cache(fi); #endif return TRUE; } } return FALSE; } static struct fc_node_info *look_up_cache(struct fc_info *fi, char *data) { struct fc_node_info *temp_list = fi->node_info_list, *q; u_char n_port_name[FC_ALEN], temp_addr[FC_ALEN]; ENTER("look_up_cache"); memcpy(n_port_name, data, FC_ALEN); while(temp_list) { if (memcmp(n_port_name, &(temp_list->hw_addr[2]), FC_ALEN) == 0) return temp_list; else temp_list = temp_list->next; } /* Broadcast IP ? */ temp_addr[0] = temp_addr[1] = temp_addr[2] = 0xFF; temp_addr[3] = temp_addr[4] = temp_addr[5] = 0xFF; if (memcmp(n_port_name, temp_addr, FC_ALEN) == 0) { q = (struct fc_node_info *)kmalloc(sizeof(struct fc_node_info), GFP_ATOMIC); if (q == NULL) { T_MSG("kmalloc failed in look_up_cache()"); return NULL; } q->d_id = BROADCAST; return q; } LEAVE("look_up_cache"); return NULL; } static int display_cache(struct fc_info *fi) { struct fc_node_info *q = fi->node_info_list; #if DEBUG_5526_2 struct ox_id_els_map *temp_ox_id_list = fi->ox_id_list; #endif int count = 0, j; printk("\nFibre Channel Node Information for %s\n", fi->name); printk("My FC_ID = %x, My WWN = %x %x, ", fi->g.my_id, fi->g.my_node_name_high, fi->g.my_node_name_low); if (fi->g.ptp_up == TRUE) printk("Port_Type = N_Port\n"); if (fi->g.loop_up == TRUE) printk("Port_Type = L_Port\n"); while(q != NULL) { printk("WWN = "); for (j = 0; j < PORT_NAME_LEN; j++) printk("%x ", q->hw_addr[j]); printk("FC_ID = %x, ", q->d_id); printk("Login = "); if (q->login == LOGIN_COMPLETED) printk("ON "); else printk("OFF "); if (q->scsi == TARGET) printk("Target_ID = %d ", q->target_id); printk("\n"); q = q->next; count++; } #if DEBUG_5526_2 printk("OX_ID -> ELS Map\n"); while(temp_ox_id_list) { printk("ox_id = %x, ELS = %x\n", temp_ox_id_list->ox_id, temp_ox_id_list->els); temp_ox_id_list = temp_ox_id_list->next; } #endif return 0; } static struct net_device_stats * iph5526_get_stats(struct net_device *dev) { struct fc_info *fi = (struct fc_info*)dev->priv; return (struct net_device_stats *) &fi->fc_stats; } /* SCSI stuff starts here */ int iph5526_detect(Scsi_Host_Template *tmpt) { struct Scsi_Host *host = NULL; struct iph5526_hostdata *hostdata; struct fc_info *fi = NULL; int no_of_hosts = 0, timeout, i, j, count = 0; u_int pci_maddr = 0; struct pci_dev *pdev = NULL; tmpt->proc_name = "iph5526"; if (pci_present() == 0) { printk("iph5526: PCI not present\n"); return 0; } for (i = 0; i <= MAX_FC_CARDS; i++) fc[i] = NULL; for (i = 0; i < clone_list[i].vendor_id != 0; i++) while ((pdev = pci_find_device(clone_list[i].vendor_id, clone_list[i].device_id, pdev))) { unsigned short pci_command; if (pci_enable_device(pdev)) continue; if (count < MAX_FC_CARDS) { fc[count] = kmalloc(sizeof(struct fc_info), GFP_ATOMIC); if (fc[count] == NULL) { printk("iph5526.c: Unable to register card # %d\n", count + 1); return no_of_hosts; } memset(fc[count], 0, sizeof(struct fc_info)); } else { printk("iph5526.c: Maximum Number of cards reached.\n"); return no_of_hosts; } fi = fc[count]; sprintf(fi->name, "fc%d", count); host = scsi_register(tmpt, sizeof(struct iph5526_hostdata)); hostdata = (struct iph5526_hostdata *)host->hostdata; memset(hostdata, 0 , sizeof(struct iph5526_hostdata)); for (j = 0; j < MAX_SCSI_TARGETS; j++) hostdata->tag_ages[j] = jiffies; hostdata->fi = fi; fi->host = host; //host->max_id = MAX_SCSI_TARGETS; host->max_id = 5; host->hostt->use_new_eh_code = 1; host->this_id = tmpt->this_id; pci_maddr = pci_resource_start(pdev, 0); if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) { printk("iph5526.c : Cannot find proper PCI device base address.\n"); scsi_unregister(host); kfree(fc[count]); fc[count] = NULL; continue; } DPRINTK("pci_maddr = %x", pci_maddr); pci_read_config_word(pdev, PCI_COMMAND, &pci_command); pci_irq_line = pdev->irq; printk("iph5526.c: PCI BIOS reports %s at i/o %#x, irq %d.\n", clone_list[i].name, pci_maddr, pci_irq_line); fi->g.mem_base = ioremap(pci_maddr & PAGE_MASK, 1024); /* We use Memory Mapped IO. The initial space contains the * PCI Configuration registers followed by the (i) chip * registers followed by the Tachyon registers. */ /* Thatz where (i)chip maps Tachyon Address Space. */ fi->g.tachyon_base = (u_long)fi->g.mem_base + TACHYON_OFFSET + ( pci_maddr & ~PAGE_MASK ); DPRINTK("fi->g.tachyon_base = %x", (u_int)fi->g.tachyon_base); if (fi->g.mem_base == NULL) { printk("iph5526.c : ioremap failed!!!\n"); scsi_unregister(host); kfree(fc[count]); fc[count] = NULL; continue; } DPRINTK("IRQ1 = %d\n", pci_irq_line); printk(version); fi->base_addr = (long) pdev; if (pci_irq_line) { int irqval = 0; /* Found it, get IRQ. */ irqval = request_irq(pci_irq_line, &tachyon_interrupt, pci_irq_line ? SA_SHIRQ : 0, fi->name, host); if (irqval) { printk("iph5526.c : Unable to get IRQ %d (irqval = %d).\n", pci_irq_line, irqval); scsi_unregister(host); kfree(fc[count]); fc[count] = NULL; continue; } host->irq = fi->irq = pci_irq_line; pci_irq_line = 0; fi->clone_id = clone_list[i].vendor_id; } if (!initialize_register_pointers(fi) || !tachyon_init(fi)) { printk("iph5526.c: TACHYON initialization failed for card # %d!!!\n", count + 1); free_irq(host->irq, host); scsi_unregister(host); if (fi) clean_up_memory(fi); kfree(fc[count]); fc[count] = NULL; break; } DPRINTK1("Fibre Channel card initialized"); /* Wait for the Link to come up and the login process * to complete. */ for(timeout = jiffies + 10*HZ; (timeout > jiffies) && ((fi->g.link_up == FALSE) || (fi->g.port_discovery == TRUE) || (fi->g.explore_fabric == TRUE) || (fi->g.perform_adisc == TRUE));) barrier(); count++; no_of_hosts++; } DPRINTK1("no_of_hosts = %d",no_of_hosts); /* This is to make sure that the ACC to the PRLI comes in * for the last ALPA. */ udelay(1000000); /* Ugly! Let the Gods forgive me */ DPRINTK1("leaving iph5526_detect\n"); return no_of_hosts; } int iph5526_biosparam(Disk * disk, kdev_t n, int ip[]) { int size = disk->capacity; ip[0] = 64; ip[1] = 32; ip[2] = size >> 11; if (ip[2] > 1024) { ip[0] = 255; ip[1] = 63; ip[2] = size / (ip[0] * ip[1]); } return 0; } int iph5526_queuecommand(Scsi_Cmnd *Cmnd, void (*done) (Scsi_Cmnd *)) { int int_required = 0; u_int r_ctl = FC4_DEVICE_DATA | UNSOLICITED_COMMAND; u_int type = TYPE_FCP | SEQUENCE_INITIATIVE; u_int frame_class = Cmnd->target; u_short ox_id = OX_ID_FIRST_SEQUENCE; struct Scsi_Host *host = Cmnd->host; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata*)host->hostdata; struct fc_info *fi = hostdata->fi; struct fc_node_info *q; u_long flags; ENTER("iph5526_queuecommand"); spin_lock_irqsave(&fi->fc_lock, flags); Cmnd->scsi_done = done; if (Cmnd->device->tagged_supported) { switch(Cmnd->tag) { case SIMPLE_QUEUE_TAG: hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_SIMPLE; break; case HEAD_OF_QUEUE_TAG: hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_HEAD_OF_Q; break; case ORDERED_QUEUE_TAG: hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_ORDERED; break; default: if ((jiffies - hostdata->tag_ages[Cmnd->target]) > (5 * HZ)) { hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_ORDERED; hostdata->tag_ages[Cmnd->target] = jiffies; } else hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_SIMPLE; break; } } /*else hostdata->cmnd.fcp_cntl = FCP_CNTL_QTYPE_UNTAGGED; */ hostdata->cmnd.fcp_addr[3] = 0; hostdata->cmnd.fcp_addr[2] = 0; hostdata->cmnd.fcp_addr[1] = 0; hostdata->cmnd.fcp_addr[0] = htons(Cmnd->lun); memcpy(&hostdata->cmnd.fcp_cdb, Cmnd->cmnd, Cmnd->cmd_len); hostdata->cmnd.fcp_data_len = htonl(Cmnd->request_bufflen); /* Get an used OX_ID. We could have pending commands. */ if (get_scsi_oxid(fi)) { spin_unlock_irqrestore(&fi->fc_lock, flags); return 1; } fi->q.free_scsi_oxid[fi->g.scsi_oxid] = OXID_INUSE; /* Maintain a handler so that we can associate the done() function * on completion of the SCSI command. */ hostdata->cmnd_handler[fi->g.scsi_oxid] = Cmnd; switch(Cmnd->cmnd[0]) { case WRITE_6: case WRITE_10: case WRITE_12: fi->g.type_of_frame = FC_SCSI_WRITE; hostdata->cmnd.fcp_cntl = htonl(FCP_CNTL_WRITE | hostdata->cmnd.fcp_cntl); break; default: fi->g.type_of_frame = FC_SCSI_READ; hostdata->cmnd.fcp_cntl = htonl(FCP_CNTL_READ | hostdata->cmnd.fcp_cntl); } memcpy(fi->q.ptr_fcp_cmnd[fi->q.fcp_cmnd_indx], &(hostdata->cmnd), sizeof(fcp_cmd)); q = resolve_target(fi, Cmnd->target); if (q == NULL) { u_int bad_id = fi->g.my_ddaa | 0xFE; /* We transmit to an non-existant AL_PA so that the "done" * function can be called while receiving the interrupt * due to a Timeout for a bad AL_PA. In a PTP configuration, * the int_required field is set, since there is no notion * of AL_PAs. This approach sucks, but works alright! */ if (fi->g.ptp_up == TRUE) int_required = 1; tx_exchange(fi, (char *)(&(hostdata->cmnd)), sizeof(fcp_cmd), r_ctl, type, bad_id, fi->g.my_mtu, int_required, ox_id, FC_SCSI_BAD_TARGET); spin_unlock_irqrestore(&fi->fc_lock, flags); DPRINTK1("Target ID %x not present", Cmnd->target); return 0; } if (q->login == LOGIN_COMPLETED) { if (add_to_sest(fi, Cmnd, q)) { DPRINTK1("add_to_sest() failed."); spin_unlock_irqrestore(&fi->fc_lock, flags); return 0; } tx_exchange(fi, (char *)(fi->q.ptr_fcp_cmnd[fi->q.fcp_cmnd_indx]), sizeof(fcp_cmd), r_ctl, type, q->d_id, q->mtu, int_required, ox_id, frame_class << 16); update_FCP_CMND_indx(fi); } spin_unlock_irqrestore(&fi->fc_lock, flags); /* If q != NULL, then we have a SCSI Target. * If q->login != LOGIN_COMPLETED, then that device could be * offline temporarily. So we let the command to time-out. */ LEAVE("iph5526_queuecommand"); return 0; } int iph5526_abort(Scsi_Cmnd *Cmnd) { struct Scsi_Host *host = Cmnd->host; struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata; struct fc_info *fi = hostdata->fi; struct fc_node_info *q; u_int r_ctl = FC4_DEVICE_DATA | UNSOLICITED_COMMAND; u_int type = TYPE_FCP | SEQUENCE_INITIATIVE; u_short ox_id = OX_ID_FIRST_SEQUENCE; int int_required = 1, i, abort_status = FALSE; u_long flags; ENTER("iph5526_abort"); spin_lock_irqsave(&fi->fc_lock, flags); q = resolve_target(fi, Cmnd->target); if (q == NULL) { u_int bad_id = fi->g.my_ddaa | 0xFE; /* This should not happen as we should always be able to * resolve a target id. But, jus in case... * We transmit to an non-existant AL_PA so that the done * function can be called while receiving the interrupt * for a bad AL_PA. */ DPRINTK1("Unresolved Target ID!"); tx_exchange(fi, (char *)(&(hostdata->cmnd)), sizeof(fcp_cmd), r_ctl, type, bad_id, fi->g.my_mtu, int_required, ox_id, FC_SCSI_BAD_TARGET); DPRINTK1("Target ID %x not present", Cmnd->target); spin_unlock_irqrestore(&fi->fc_lock, flags); return FAILED; } /* If q != NULL, then we have a SCSI Target. If * q->login != LOGIN_COMPLETED, then that device could * be offline temporarily. So we let the command to time-out. */ /* Get the OX_ID for the Command to be aborted. */ for (i = 0; i <= MAX_SCSI_XID; i++) { if (hostdata->cmnd_handler[i] == Cmnd) { hostdata->cmnd_handler[i] = NULL; ox_id = i; break; } } if (i > MAX_SCSI_XID) { T_MSG("Command could not be resolved to OX_ID"); spin_unlock_irqrestore(&fi->fc_lock, flags); return FAILED; } switch(Cmnd->cmnd[0]) { case WRITE_6: case WRITE_10: case WRITE_12: break; default: ox_id |= SCSI_READ_BIT; } abort_status = abort_exchange(fi, ox_id); if ((q->login == LOGIN_COMPLETED) && (abort_status == TRUE)) { /* Then, transmit an ABTS to the target. The rest * is done when the BA_ACC is received for the ABTS. */ tx_abts(fi, q->d_id, ox_id); } else { u_int STE_bit; u_short x_id; /* Invalidate resources for that Exchange. */ x_id = ox_id & MAX_SCSI_XID; STE_bit = ntohl(*fi->q.ptr_sest[x_id]); if (STE_bit & SEST_V) { *(fi->q.ptr_sest[x_id]) &= htonl(SEST_INV); invalidate_SEST_entry(fi, ox_id); } } LEAVE("iph5526_abort"); spin_unlock_irqrestore(&fi->fc_lock, flags); return SUCCESS; } static int abort_exchange(struct fc_info *fi, u_short ox_id) { u_short x_id; volatile u_int flush_SEST, STE_bit; x_id = ox_id & MAX_SCSI_XID; DPRINTK1("Aborting Exchange %x", ox_id); STE_bit = ntohl(*fi->q.ptr_sest[x_id]); /* Is the Exchange still active?. */ if (STE_bit & SEST_V) { if (ox_id & SCSI_READ_BIT) { /* If the Exchange to be aborted is Inbound, * Flush the SEST Entry from Tachyon's Cache. */ *(fi->q.ptr_sest[x_id]) &= htonl(SEST_INV); flush_tachyon_cache(fi, ox_id); flush_SEST = readl(fi->t_r.ptr_tach_flush_oxid_reg); while ((flush_SEST & 0x80000000) != 0) flush_SEST = readl(fi->t_r.ptr_tach_flush_oxid_reg); STE_bit = ntohl(*fi->q.ptr_sest[x_id]); while ((STE_bit & 0x80000000) != 0) STE_bit = ntohl(*fi->q.ptr_sest[x_id]); flush_SEST = readl(fi->t_r.ptr_tach_flush_oxid_reg); invalidate_SEST_entry(fi, ox_id); } else { int i; u_int *ptr_edb; /* For In-Order Reassembly, the following is done: * First, write zero as the buffer length in the EDB. */ ptr_edb = bus_to_virt(ntohl(*(fi->q.ptr_sest[x_id] + 7))); for (i = 0; i < EDB_LEN; i++) if (fi->q.ptr_edb[i] == ptr_edb) break; if (i < EDB_LEN) *ptr_edb = *ptr_edb & 0x0000FFFF; else T_MSG("EDB not found while clearing in abort_exchange()"); } DPRINTK1("Exchange %x invalidated", ox_id); return TRUE; } else { DPRINTK1("SEST Entry for exchange %x not valid", ox_id); return FALSE; } } static void flush_tachyon_cache(struct fc_info *fi, u_short ox_id) { volatile u_int tachyon_status; if (fi->g.loop_up == TRUE) { writel(HOST_CONTROL, fi->t_r.ptr_fm_control_reg); /* Make sure that the Inbound FIFO is empty. */ do { tachyon_status = readl(fi->t_r.ptr_tach_status_reg); udelay(200); }while ((tachyon_status & RECEIVE_FIFO_EMPTY) == 0); /* Ok. Go ahead and flushhhhhhhhh! */ writel(0x80000000 | ox_id, fi->t_r.ptr_tach_flush_oxid_reg); writel(EXIT_HOST_CONTROL, fi->t_r.ptr_fm_control_reg); return; } if (fi->g.ptp_up == TRUE) { take_tachyon_offline(fi); /* Make sure that the Inbound FIFO is empty. */ do { tachyon_status = readl(fi->t_r.ptr_tach_status_reg); udelay(200); }while ((tachyon_status & RECEIVE_FIFO_EMPTY) == 0); writel(0x80000000 | ox_id, fi->t_r.ptr_tach_flush_oxid_reg); /* Write the Initialize command to the FM Control reg. */ fi->g.n_port_try = TRUE; DPRINTK1("In abort_exchange, TACHYON initializing as N_Port...\n"); writel(INITIALIZE, fi->t_r.ptr_fm_control_reg); } } static struct fc_node_info *resolve_target(struct fc_info *fi, u_char target) { struct fc_node_info *temp = fi->node_info_list; while(temp != NULL) if (temp->target_id == target) { if ((temp->scsi == TARGET) && (temp->login == LOGIN_COMPLETED)) return temp; else { if (temp->login != LOGIN_COMPLETED) { /* The Target is not currently logged in. * It could be a Target on the Local Loop or * on a Remote Loop connected through a switch. * In either case, we will know whenever the Target * comes On-Line again. We let the command to * time-out so that it gets retried. */ T_MSG("Target %d not logged in.", temp->target_id); tx_logi(fi, ELS_PLOGI, temp->d_id); return temp; } else { if (temp->scsi != TARGET) { /* For some reason, we did not get a response to * PRLI. Letz try it again... */ DPRINTK1("Node not PRLIied. Txing PRLI..."); tx_prli(fi, ELS_PRLI, temp->d_id, OX_ID_FIRST_SEQUENCE); } } return temp; } } else temp = temp->next; return NULL; } static int add_to_sest(struct fc_info *fi, Scsi_Cmnd *Cmnd, struct fc_node_info *ni) { /* we have at least 1 buffer, the terminator */ int no_of_sdb_buffers = 1, i; int no_of_edb_buffers = 0; u_int *req_buffer = (u_int *)Cmnd->request_buffer; u_int *ptr_sdb = NULL; struct scatterlist *sl1, *sl2 = NULL; int no_of_sg = 0; switch(fi->g.type_of_frame) { case FC_SCSI_READ: fi->g.inb_sest_entry.flags_and_byte_offset = htonl(INB_SEST_VED); fi->g.inb_sest_entry.byte_count = 0; fi->g.inb_sest_entry.no_of_recvd_frames = 0; fi->g.inb_sest_entry.no_of_expected_frames = 0; fi->g.inb_sest_entry.last_fctl = 0; if (Cmnd->use_sg) { no_of_sg = Cmnd->use_sg; sl1 = sl2 = (struct scatterlist *)Cmnd->request_buffer; for (i = 0; i < no_of_sg; i++) { no_of_sdb_buffers += sl1->length / SEST_BUFFER_SIZE; if (sl1->length % SEST_BUFFER_SIZE) no_of_sdb_buffers++; sl1++; } } else { no_of_sdb_buffers += Cmnd->request_bufflen / SEST_BUFFER_SIZE; if (Cmnd->request_bufflen % SEST_BUFFER_SIZE) no_of_sdb_buffers++; } /* if !use_sg */ /* We are working with the premise that at the max we would * get a scatter-gather buffer containing 63 buffers * of size 1024 bytes each. Is it a _bad_ assumption? */ if (no_of_sdb_buffers > 512) { T_MSG("Number of SDB buffers needed = %d", no_of_sdb_buffers); T_MSG("Disable Scatter-Gather!!!"); return 1; } /* Store it in the sdb_table so that we can retrieve that * free up the memory when the Read Command completes. */ if (get_free_SDB(fi)) return 1; ptr_sdb = fi->q.ptr_sdb_slot[fi->q.sdb_indx]; fi->q.sdb_slot_status[fi->q.sdb_indx] = SDB_BUSY; fi->g.inb_sest_entry.sdb_address = htonl(virt_to_bus(ptr_sdb)); if (Cmnd->use_sg) { int count = 0, j; for(i = 0; i < no_of_sg; i++) { char *addr_ptr = sl2->address; count = sl2->length / SEST_BUFFER_SIZE; if (sl2->length % SEST_BUFFER_SIZE) count++; for (j = 0; j < count; j++) { *(ptr_sdb) = htonl(virt_to_bus(addr_ptr)); addr_ptr += SEST_BUFFER_SIZE; ptr_sdb++; } count = 0; sl2++; } } else { for (i = 0; i < no_of_sdb_buffers - 1; i++) { *(ptr_sdb) = htonl(virt_to_bus(req_buffer)); req_buffer += SEST_BUFFER_SIZE/4; ptr_sdb++; } } *(ptr_sdb) = htonl(0x1); /* Terminator */ /* The scratch pad is used to hold the index into the SDB. */ fi->g.inb_sest_entry.scratch_pad = fi->q.sdb_indx; fi->g.inb_sest_entry.expected_ro = 0; fi->g.inb_sest_entry.buffer_index = 0; fi->g.inb_sest_entry.buffer_offset = 0; memcpy(fi->q.ptr_sest[fi->g.scsi_oxid], &fi->g.inb_sest_entry, sizeof(INB_SEST_ENTRY)); break; case FC_SCSI_WRITE: fi->g.outb_sest_entry.flags_and_did = htonl(OUTB_SEST_VED | ni->d_id); fi->g.outb_sest_entry.max_frame_len = htons(ni->mtu << 4); fi->g.outb_sest_entry.cntl = htons(ODB_CLASS_3 | ODB_EE_CREDIT | ODB_NO_INT | ODB_NO_COMP); fi->g.outb_sest_entry.total_seq_length = INV_SEQ_LEN; fi->g.outb_sest_entry.link = htons(OUTB_SEST_LINK); fi->g.outb_sest_entry.transaction_id = htonl(fi->g.scsi_oxid); fi->g.outb_sest_entry.seq_id = fi->g.seq_id; fi->g.outb_sest_entry.reserved = 0x0; fi->g.outb_sest_entry.header_length = htons(TACHYON_HEADER_LEN); { u_char df_ctl = 0; u_short rx_id = RX_ID_FIRST_SEQUENCE; u_int r_ctl = FC4_DEVICE_DATA | SOLICITED_DATA; u_int type = TYPE_FCP | SEQUENCE_INITIATIVE; /* Multi Frame Sequence ? If yes, set RO bit. */ if (Cmnd->request_bufflen > ni->mtu) type |= RELATIVE_OFF_PRESENT; build_tachyon_header(fi, fi->g.my_id, r_ctl, ni->d_id, type, fi->g.seq_id, df_ctl, fi->g.scsi_oxid, rx_id, NULL); if (get_free_header(fi) || get_free_EDB(fi)) return 1; memcpy(fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx], &(fi->g.tach_header), TACHYON_HEADER_LEN); fi->g.outb_sest_entry.header_address = htonl(virt_to_bus(fi->q.ptr_tachyon_header[fi->q.tachyon_header_indx])); update_tachyon_header_indx(fi); } if (Cmnd->use_sg) { no_of_sg = Cmnd->use_sg; sl1 = sl2 = (struct scatterlist *)Cmnd->request_buffer; for (i = 0; i < no_of_sg; i++) { no_of_edb_buffers += sl1->length / SEST_BUFFER_SIZE; if (sl1->length % SEST_BUFFER_SIZE) no_of_edb_buffers++; sl1++; } } else { no_of_edb_buffers += Cmnd->request_bufflen / SEST_BUFFER_SIZE; if (Cmnd->request_bufflen % SEST_BUFFER_SIZE) no_of_edb_buffers++; } /* if !use_sg */ /* We need "no_of_edb_buffers" _contiguous_ EDBs * that are FREE. Check for that first. */ for (i = 0; i < no_of_edb_buffers; i++) { int j; if ((fi->q.edb_buffer_indx + no_of_edb_buffers) >= EDB_LEN) fi->q.edb_buffer_indx = 0; if (fi->q.free_edb_list[fi->q.edb_buffer_indx + i] != EDB_FREE) { for (j = 0; j < i; j++) update_EDB_indx(fi); if (get_free_EDB(fi)) return 1; i = 0; } } /* We got enuff FREE EDBs. */ if (Cmnd->use_sg) { fi->g.outb_sest_entry.edb_address = htonl(virt_to_bus(fi->q.ptr_edb[fi->q.edb_buffer_indx])); sl1 = (struct scatterlist *)Cmnd->request_buffer; for(i = 0; i < no_of_sg; i++) { int count = 0, j; count = sl1->length / SEST_BUFFER_SIZE; for (j = 0; j < count; j++) { build_EDB(fi, (char *)sl1->address, 0, SEST_BUFFER_SIZE); memcpy(fi->q.ptr_edb[fi->q.edb_buffer_indx], &(fi->g.edb), sizeof(EDB)); /* Mark this EDB as being in use */ fi->q.free_edb_list[fi->q.edb_buffer_indx] = EDB_BUSY; /* We have already made sure that we have enuff * free EDBs that are contiguous. So this is * safe. */ update_EDB_indx(fi); sl1->address += SEST_BUFFER_SIZE; } /* Just in case itz not a multiple of * SEST_BUFFER_SIZE bytes. */ if (sl1->length % SEST_BUFFER_SIZE) { build_EDB(fi, (char *)sl1->address, 0, sl1->length % SEST_BUFFER_SIZE); memcpy(fi->q.ptr_edb[fi->q.edb_buffer_indx], &(fi->g.edb), sizeof(EDB)); fi->q.free_edb_list[fi->q.edb_buffer_indx] = EDB_BUSY; update_EDB_indx(fi); } sl1++; } /* The last EDB is special. It needs the "end bit" to * be set. */ *(fi->q.ptr_edb[fi->q.edb_buffer_indx - 1] + 1) = *(fi->q.ptr_edb[fi->q.edb_buffer_indx - 1] + 1) | ntohs(EDB_END); } else { int count = 0, j; fi->g.outb_sest_entry.edb_address = htonl(virt_to_bus(fi->q.ptr_edb[fi->q.edb_buffer_indx])); count = Cmnd->request_bufflen / SEST_BUFFER_SIZE; for (j = 0; j < count; j++) { build_EDB(fi, (char *)req_buffer, 0, SEST_BUFFER_SIZE); memcpy(fi->q.ptr_edb[fi->q.edb_buffer_indx], &(fi->g.edb), sizeof(EDB)); /* Mark this EDB as being in use */ fi->q.free_edb_list[fi->q.edb_buffer_indx] = EDB_BUSY; /* We have already made sure that we have enuff * free EDBs that are contiguous. So this is * safe. */ update_EDB_indx(fi); req_buffer += SEST_BUFFER_SIZE; } /* Just in case itz not a multiple of * SEST_BUFFER_SIZE bytes. */ if (Cmnd->request_bufflen % SEST_BUFFER_SIZE) { build_EDB(fi, (char *)req_buffer, EDB_END, Cmnd->request_bufflen % SEST_BUFFER_SIZE); memcpy(fi->q.ptr_edb[fi->q.edb_buffer_indx], &(fi->g.edb), sizeof(EDB)); fi->q.free_edb_list[fi->q.edb_buffer_indx] = EDB_BUSY; update_EDB_indx(fi); } else { /* Mark the last EDB as the "end edb". */ *(fi->q.ptr_edb[fi->q.edb_buffer_indx - 1] + 1) = *(fi->q.ptr_edb[fi->q.edb_buffer_indx - 1] + 1) | htons(EDB_END); } } /* Finally we have something to send!. */ memcpy(fi->q.ptr_sest[fi->g.scsi_oxid], &fi->g.outb_sest_entry, sizeof(OUTB_SEST_ENTRY)); break; } return 0; } static void update_FCP_CMND_indx(struct fc_info *fi) { fi->q.fcp_cmnd_indx++; if (fi->q.fcp_cmnd_indx == NO_OF_FCP_CMNDS) fi->q.fcp_cmnd_indx = 0; } static int get_scsi_oxid(struct fc_info *fi) { u_short initial_oxid = fi->g.scsi_oxid; /* Check if the OX_ID is in use. * We could have an outstanding SCSI command. */ while (fi->q.free_scsi_oxid[fi->g.scsi_oxid] != OXID_AVAILABLE) { update_scsi_oxid(fi); if (fi->g.scsi_oxid == initial_oxid) { T_MSG("No free OX_IDs avaliable") reset_tachyon(fi, SOFTWARE_RESET); return 1; } } return 0; } static void update_scsi_oxid(struct fc_info *fi) { fi->g.scsi_oxid++; if (fi->g.scsi_oxid == (MAX_SCSI_XID + 1)) fi->g.scsi_oxid = 0; } static int get_free_SDB(struct fc_info *fi) { unsigned int initial_indx = fi->q.sdb_indx; /* Check if the SDB is in use. * We could have an outstanding SCSI Read command. * We should find a free slot as we can queue a * maximum of 32 SCSI commands only. */ while (fi->q.sdb_slot_status[fi->q.sdb_indx] != SDB_FREE) { update_SDB_indx(fi); if (fi->q.sdb_indx == initial_indx) { T_MSG("No free SDB buffers avaliable") reset_tachyon(fi, SOFTWARE_RESET); return 1; } } return 0; } static void update_SDB_indx(struct fc_info *fi) { fi->q.sdb_indx++; if (fi->q.sdb_indx == NO_OF_SDB_ENTRIES) fi->q.sdb_indx = 0; } int iph5526_release(struct Scsi_Host *host) { struct iph5526_hostdata *hostdata = (struct iph5526_hostdata*)host->hostdata; struct fc_info *fi = hostdata->fi; free_irq(host->irq, host); iounmap(fi->g.mem_base); return 0; } const char *iph5526_info(struct Scsi_Host *host) { static char buf[80]; sprintf(buf, "Interphase 5526 Fibre Channel PCI SCSI Adapter using IRQ %d\n", host->irq); return buf; } #ifdef MODULE #define NAMELEN 8 /* # of chars for storing dev->name */ static struct net_device *dev_fc[MAX_FC_CARDS]; static int io = 0; static int irq = 0; static int bad = 0; /* 0xbad = bad sig or no reset ack */ static int scsi_registered; int init_module(void) { int i = 0; driver_template.module = &__this_module; scsi_register_module(MODULE_SCSI_HA, &driver_template); if (driver_template.present) scsi_registered = TRUE; else { printk("iph5526: SCSI registeration failed!!!\n"); scsi_registered = FALSE; scsi_unregister_module(MODULE_SCSI_HA, &driver_template); } while(fc[i] != NULL) { dev_fc[i] = NULL; dev_fc[i] = init_fcdev(dev_fc[i], 0); if (dev_fc[i] == NULL) { printk("iph5526.c: init_fcdev failed for card #%d\n", i+1); break; } dev_fc[i]->irq = irq; dev_fc[i]->mem_end = bad; dev_fc[i]->base_addr = io; dev_fc[i]->init = iph5526_probe; dev_fc[i]->priv = fc[i]; fc[i]->dev = dev_fc[i]; if (register_fcdev(dev_fc[i]) != 0) { kfree(dev_fc[i]); dev_fc[i] = NULL; if (i == 0) { printk("iph5526.c: IP registeration failed!!!\n"); return -ENODEV; } } i++; } if (i == 0) return -ENODEV; return 0; } void cleanup_module(void) { int i = 0; while(fc[i] != NULL) { struct net_device *dev = fc[i]->dev; void *priv = dev->priv; fc[i]->g.dont_init = TRUE; take_tachyon_offline(fc[i]); unregister_fcdev(dev); clean_up_memory(fc[i]); if (dev->priv) kfree(priv); kfree(dev); dev = NULL; i++; } if (scsi_registered == TRUE) scsi_unregister_module(MODULE_SCSI_HA, &driver_template); } #endif /* MODULE */ void clean_up_memory(struct fc_info *fi) { int i,j; ENTER("clean_up_memory"); if (fi->q.ptr_mfsbq_base) free_pages((u_long)bus_to_virt(ntohl(*(fi->q.ptr_mfsbq_base))), 5); DPRINTK("after kfree2"); for (i = 0; i < SFSBQ_LENGTH; i++) for (j = 0; j < NO_OF_ENTRIES; j++) if (fi->q.ptr_sfs_buffers[i*NO_OF_ENTRIES + j]) kfree(fi->q.ptr_sfs_buffers[i*NO_OF_ENTRIES + j]); DPRINTK("after kfree1"); if (fi->q.ptr_ocq_base) free_page((u_long)fi->q.ptr_ocq_base); if (fi->q.ptr_imq_base) free_page((u_long)fi->q.ptr_imq_base); if (fi->q.ptr_mfsbq_base) free_page((u_long)fi->q.ptr_mfsbq_base); if (fi->q.ptr_sfsbq_base) free_page((u_long)fi->q.ptr_sfsbq_base); if (fi->q.ptr_edb_base) free_pages((u_long)fi->q.ptr_edb_base, 5); if (fi->q.ptr_sest_base) free_pages((u_long)fi->q.ptr_sest_base, 5); if (fi->q.ptr_tachyon_header_base) free_page((u_long)fi->q.ptr_tachyon_header_base); if (fi->q.ptr_sdb_base) free_pages((u_long)fi->q.ptr_sdb_base, 5); if (fi->q.ptr_fcp_cmnd_base) free_page((u_long)fi->q.ptr_fcp_cmnd_base); DPRINTK("after free_pages"); if (fi->q.ptr_host_ocq_cons_indx) kfree(fi->q.ptr_host_ocq_cons_indx); if (fi->q.ptr_host_hpcq_cons_indx) kfree(fi->q.ptr_host_hpcq_cons_indx); if (fi->q.ptr_host_imq_prod_indx) kfree(fi->q.ptr_host_imq_prod_indx); DPRINTK("after kfree3"); while (fi->node_info_list) { struct fc_node_info *temp_list = fi->node_info_list; fi->node_info_list = fi->node_info_list->next; kfree(temp_list); } while (fi->ox_id_list) { struct ox_id_els_map *temp = fi->ox_id_list; fi->ox_id_list = fi->ox_id_list->next; kfree(temp); } LEAVE("clean_up_memory"); } static int initialize_register_pointers(struct fc_info *fi) { ENTER("initialize_register_pointers"); if(fi->g.tachyon_base == 0) return -ENOMEM; fi->i_r.ptr_ichip_hw_control_reg = ICHIP_HW_CONTROL_REG_OFF + fi->g.tachyon_base; fi->i_r.ptr_ichip_hw_status_reg = ICHIP_HW_STATUS_REG_OFF + fi->g.tachyon_base; fi->i_r.ptr_ichip_hw_addr_mask_reg = ICHIP_HW_ADDR_MASK_REG_OFF + fi->g.tachyon_base; fi->t_r.ptr_ocq_base_reg = OCQ_BASE_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_ocq_len_reg = OCQ_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_ocq_prod_indx_reg = OCQ_PRODUCER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_ocq_cons_indx_reg = OCQ_CONSUMER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_imq_base_reg = IMQ_BASE_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_imq_len_reg = IMQ_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_imq_cons_indx_reg = IMQ_CONSUMER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_imq_prod_indx_reg = IMQ_PRODUCER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_mfsbq_base_reg = MFSBQ_BASE_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_mfsbq_len_reg = MFSBQ_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_mfsbq_prod_reg = MFSBQ_PRODUCER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_mfsbq_cons_reg = MFSBQ_CONSUMER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_mfsbuff_len_reg = MFS_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sfsbq_base_reg = SFSBQ_BASE_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sfsbq_len_reg = SFSBQ_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sfsbq_prod_reg = SFSBQ_PRODUCER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sfsbq_cons_reg = SFSBQ_CONSUMER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sfsbuff_len_reg = SFS_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sest_base_reg = SEST_BASE_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_sest_len_reg = SEST_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_scsibuff_len_reg = SCSI_LENGTH_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_tach_config_reg = TACHYON_CONFIG_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_tach_control_reg = TACHYON_CONTROL_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_tach_status_reg = TACHYON_STATUS_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_tach_flush_oxid_reg = TACHYON_FLUSH_SEST_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_config_reg = FMGR_CONFIG_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_control_reg = FMGR_CONTROL_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_status_reg = FMGR_STATUS_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_tov_reg = FMGR_TIMER_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_wwn_hi_reg = FMGR_WWN_HI_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_wwn_low_reg = FMGR_WWN_LO_REGISTER_OFFSET + fi->g.tachyon_base; fi->t_r.ptr_fm_rx_al_pa_reg = FMGR_RCVD_ALPA_REGISTER_OFFSET + fi->g.tachyon_base; LEAVE("initialize_register_pointers"); return 1; } /* * Local variables: * compile-command: "gcc -DKERNEL -Wall -O6 -fomit-frame-pointer -I/usr/src/linux/net/tcp -c iph5526.c" * version-control: t * kept-new-versions: 5 * End: */ |