aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
blob: f548430234663691b80f3e50ab94e2088bdf25ad (plain) (blame)
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
/* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
 * This file contains the code that interacts with libfc, libfcoe,
 * cnic modules to create FCoE instances, send/receive non-offloaded
 * FIP/FCoE packets, listen to link events etc.
 *
 * Copyright (c) 2008 - 2013 Broadcom Corporation
 *
 * 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.
 *
 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
 */

#include "bnx2fc.h"

static struct list_head adapter_list;
static struct list_head if_list;
static u32 adapter_count;
static DEFINE_MUTEX(bnx2fc_dev_lock);
DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);

#define DRV_MODULE_NAME		"bnx2fc"
#define DRV_MODULE_VERSION	BNX2FC_VERSION
#define DRV_MODULE_RELDATE	"Dec 11, 2013"


static char version[] =
		"Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
		" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";


MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

#define BNX2FC_MAX_QUEUE_DEPTH	256
#define BNX2FC_MIN_QUEUE_DEPTH	32
#define FCOE_WORD_TO_BYTE  4

static struct scsi_transport_template	*bnx2fc_transport_template;
static struct scsi_transport_template	*bnx2fc_vport_xport_template;

struct workqueue_struct *bnx2fc_wq;

/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
 * Here the io threads are per cpu but the l2 thread is just one
 */
struct fcoe_percpu_s bnx2fc_global;
DEFINE_SPINLOCK(bnx2fc_global_lock);

static struct cnic_ulp_ops bnx2fc_cnic_cb;
static struct libfc_function_template bnx2fc_libfc_fcn_templ;
static struct scsi_host_template bnx2fc_shost_template;
static struct fc_function_template bnx2fc_transport_function;
static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
static struct fc_function_template bnx2fc_vport_xport_function;
static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
static int bnx2fc_destroy(struct net_device *net_device);
static int bnx2fc_enable(struct net_device *netdev);
static int bnx2fc_disable(struct net_device *netdev);

/* fcoe_syfs control interface handlers */
static int bnx2fc_ctlr_alloc(struct net_device *netdev);
static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);

static void bnx2fc_recv_frame(struct sk_buff *skb);

static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
static int bnx2fc_lport_config(struct fc_lport *lport);
static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
				  struct device *parent, int npiv);
static void bnx2fc_destroy_work(struct work_struct *work);

static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
							*phys_dev);
static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);

static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);

static void bnx2fc_port_shutdown(struct fc_lport *lport);
static void bnx2fc_stop(struct bnx2fc_interface *interface);
static int __init bnx2fc_mod_init(void);
static void __exit bnx2fc_mod_exit(void);

unsigned int bnx2fc_debug_level;
module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);

static int bnx2fc_cpu_callback(struct notifier_block *nfb,
			     unsigned long action, void *hcpu);
/* notification function for CPU hotplug events */
static struct notifier_block bnx2fc_cpu_notifier = {
	.notifier_call = bnx2fc_cpu_callback,
};

static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
{
	return ((struct bnx2fc_interface *)
		((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
}

static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
{
	struct fcoe_ctlr_device *ctlr_dev =
		fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
	struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
	struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);

	fcf_dev->vlan_id = fcoe->vlan_id;
}

static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
{
	struct fcoe_percpu_s *bg;
	struct fcoe_rcv_info *fr;
	struct sk_buff_head *list;
	struct sk_buff *skb, *next;
	struct sk_buff *head;

	bg = &bnx2fc_global;
	spin_lock_bh(&bg->fcoe_rx_list.lock);
	list = &bg->fcoe_rx_list;
	head = list->next;
	for (skb = head; skb != (struct sk_buff *)list;
	     skb = next) {
		next = skb->next;
		fr = fcoe_dev_from_skb(skb);
		if (fr->fr_dev == lp) {
			__skb_unlink(skb, list);
			kfree_skb(skb);
		}
	}
	spin_unlock_bh(&bg->fcoe_rx_list.lock);
}

int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
{
	int rc;
	spin_lock(&bnx2fc_global_lock);
	rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
	spin_unlock(&bnx2fc_global_lock);

	return rc;
}

static void bnx2fc_abort_io(struct fc_lport *lport)
{
	/*
	 * This function is no-op for bnx2fc, but we do
	 * not want to leave it as NULL either, as libfc
	 * can call the default function which is
	 * fc_fcp_abort_io.
	 */
}

static void bnx2fc_cleanup(struct fc_lport *lport)
{
	struct fcoe_port *port = lport_priv(lport);
	struct bnx2fc_interface *interface = port->priv;
	struct bnx2fc_hba *hba = interface->hba;
	struct bnx2fc_rport *tgt;
	int i;

	BNX2FC_MISC_DBG("Entered %s\n", __func__);
	mutex_lock(&hba->hba_mutex);
	spin_lock_bh(&hba->hba_lock);
	for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
		tgt = hba->tgt_ofld_list[i];
		if (tgt) {
			/* Cleanup IOs belonging to requested vport */
			if (tgt->port == port) {
				spin_unlock_bh(&hba->hba_lock);
				BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
				bnx2fc_flush_active_ios(tgt);
				spin_lock_bh(&hba->hba_lock);
			}
		}
	}
	spin_unlock_bh(&hba->hba_lock);
	mutex_unlock(&hba->hba_mutex);
}

static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
			     struct fc_frame *fp)
{
	struct fc_rport_priv *rdata = tgt->rdata;
	struct fc_frame_header *fh;
	int rc = 0;

	fh = fc_frame_header_get(fp);
	BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
			"r_ctl = 0x%x\n", rdata->ids.port_id,
			ntohs(fh->fh_ox_id), fh->fh_r_ctl);
	if ((fh->fh_type == FC_TYPE_ELS) &&
	    (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {

		switch (fc_frame_payload_op(fp)) {
		case ELS_ADISC:
			rc = bnx2fc_send_adisc(tgt, fp);
			break;
		case ELS_LOGO:
			rc = bnx2fc_send_logo(tgt, fp);
			break;
		case ELS_RLS:
			rc = bnx2fc_send_rls(tgt, fp);
			break;
		default:
			break;
		}
	} else if ((fh->fh_type ==  FC_TYPE_BLS) &&
	    (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
		BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
	else {
		BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
				"rctl 0x%x thru non-offload path\n",
				fh->fh_type, fh->fh_r_ctl);
		return -ENODEV;
	}
	if (rc)
		return -ENOMEM;
	else
		return 0;
}

/**
 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 *
 * @lport:	the associated local port
 * @fp:	the fc_frame to be transmitted
 */
static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
{
	struct ethhdr		*eh;
	struct fcoe_crc_eof	*cp;
	struct sk_buff		*skb;
	struct fc_frame_header	*fh;
	struct bnx2fc_interface	*interface;
	struct fcoe_ctlr        *ctlr;
	struct bnx2fc_hba *hba;
	struct fcoe_port	*port;
	struct fcoe_hdr		*hp;
	struct bnx2fc_rport	*tgt;
	struct fc_stats		*stats;
	u8			sof, eof;
	u32			crc;
	unsigned int		hlen, tlen, elen;
	int			wlen, rc = 0;

	port = (struct fcoe_port *)lport_priv(lport);
	interface = port->priv;
	ctlr = bnx2fc_to_ctlr(interface);
	hba = interface->hba;

	fh = fc_frame_header_get(fp);

	skb = fp_skb(fp);
	if (!lport->link_up) {
		BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
		kfree_skb(skb);
		return 0;
	}

	if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
		if (!ctlr->sel_fcf) {
			BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
			kfree_skb(skb);
			return -EINVAL;
		}
		if (fcoe_ctlr_els_send(ctlr, lport, skb))
			return 0;
	}

	sof = fr_sof(fp);
	eof = fr_eof(fp);

	/*
	 * Snoop the frame header to check if the frame is for
	 * an offloaded session
	 */
	/*
	 * tgt_ofld_list access is synchronized using
	 * both hba mutex and hba lock. Atleast hba mutex or
	 * hba lock needs to be held for read access.
	 */

	spin_lock_bh(&hba->hba_lock);
	tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
	if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
		/* This frame is for offloaded session */
		BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
				"port_id = 0x%x\n", ntoh24(fh->fh_d_id));
		spin_unlock_bh(&hba->hba_lock);
		rc = bnx2fc_xmit_l2_frame(tgt, fp);
		if (rc != -ENODEV) {
			kfree_skb(skb);
			return rc;
		}
	} else {
		spin_unlock_bh(&hba->hba_lock);
	}

	elen = sizeof(struct ethhdr);
	hlen = sizeof(struct fcoe_hdr);
	tlen = sizeof(struct fcoe_crc_eof);
	wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;

	skb->ip_summed = CHECKSUM_NONE;
	crc = fcoe_fc_crc(fp);

	/* copy port crc and eof to the skb buff */
	if (skb_is_nonlinear(skb)) {
		skb_frag_t *frag;
		if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
			kfree_skb(skb);
			return -ENOMEM;
		}
		frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
		cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
	} else {
		cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
	}

	memset(cp, 0, sizeof(*cp));
	cp->fcoe_eof = eof;
	cp->fcoe_crc32 = cpu_to_le32(~crc);
	if (skb_is_nonlinear(skb)) {
		kunmap_atomic(cp);
		cp = NULL;
	}

	/* adjust skb network/transport offsets to match mac/fcoe/port */
	skb_push(skb, elen + hlen);
	skb_reset_mac_header(skb);
	skb_reset_network_header(skb);
	skb->mac_len = elen;
	skb->protocol = htons(ETH_P_FCOE);
	skb->dev = interface->netdev;

	/* fill up mac and fcoe headers */
	eh = eth_hdr(skb);
	eh->h_proto = htons(ETH_P_FCOE);
	if (ctlr->map_dest)
		fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
	else
		/* insert GW address */
		memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);

	if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
		memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
	else
		memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);

	hp = (struct fcoe_hdr *)(eh + 1);
	memset(hp, 0, sizeof(*hp));
	if (FC_FCOE_VER)
		FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
	hp->fcoe_sof = sof;

	/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
	if (lport->seq_offload && fr_max_payload(fp)) {
		skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
		skb_shinfo(skb)->gso_size = fr_max_payload(fp);
	} else {
		skb_shinfo(skb)->gso_type = 0;
		skb_shinfo(skb)->gso_size = 0;
	}

	/*update tx stats */
	stats = per_cpu_ptr(lport->stats, get_cpu());
	stats->TxFrames++;
	stats->TxWords += wlen;
	put_cpu();

	/* send down to lld */
	fr_dev(fp) = lport;
	if (port->fcoe_pending_queue.qlen)
		fcoe_check_wait_queue(lport, skb);
	else if (fcoe_start_io(skb))
		fcoe_check_wait_queue(lport, skb);

	return 0;
}

/**
 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 *
 * @skb:	the receive socket buffer
 * @dev:	associated net device
 * @ptype:	context
 * @olddev:	last device
 *
 * This function receives the packet and builds FC frame and passes it up
 */
static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
		struct packet_type *ptype, struct net_device *olddev)
{
	struct fc_lport *lport;
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	struct fc_frame_header *fh;
	struct fcoe_rcv_info *fr;
	struct fcoe_percpu_s *bg;
	unsigned short oxid;

	interface = container_of(ptype, struct bnx2fc_interface,
				 fcoe_packet_type);
	ctlr = bnx2fc_to_ctlr(interface);
	lport = ctlr->lp;

	if (unlikely(lport == NULL)) {
		printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
		goto err;
	}

	if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
		printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
		goto err;
	}

	/*
	 * Check for minimum frame length, and make sure required FCoE
	 * and FC headers are pulled into the linear data area.
	 */
	if (unlikely((skb->len < FCOE_MIN_FRAME) ||
	    !pskb_may_pull(skb, FCOE_HEADER_LEN)))
		goto err;

	skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
	fh = (struct fc_frame_header *) skb_transport_header(skb);

	oxid = ntohs(fh->fh_ox_id);

	fr = fcoe_dev_from_skb(skb);
	fr->fr_dev = lport;

	bg = &bnx2fc_global;
	spin_lock(&bg->fcoe_rx_list.lock);

	__skb_queue_tail(&bg->fcoe_rx_list, skb);
	if (bg->fcoe_rx_list.qlen == 1)
		wake_up_process(bg->thread);

	spin_unlock(&bg->fcoe_rx_list.lock);

	return 0;
err:
	kfree_skb(skb);
	return -1;
}

static int bnx2fc_l2_rcv_thread(void *arg)
{
	struct fcoe_percpu_s *bg = arg;
	struct sk_buff *skb;

	set_user_nice(current, MIN_NICE);
	set_current_state(TASK_INTERRUPTIBLE);
	while (!kthread_should_stop()) {
		schedule();
		spin_lock_bh(&bg->fcoe_rx_list.lock);
		while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
			spin_unlock_bh(&bg->fcoe_rx_list.lock);
			bnx2fc_recv_frame(skb);
			spin_lock_bh(&bg->fcoe_rx_list.lock);
		}
		__set_current_state(TASK_INTERRUPTIBLE);
		spin_unlock_bh(&bg->fcoe_rx_list.lock);
	}
	__set_current_state(TASK_RUNNING);
	return 0;
}


static void bnx2fc_recv_frame(struct sk_buff *skb)
{
	u32 fr_len;
	struct fc_lport *lport;
	struct fcoe_rcv_info *fr;
	struct fc_stats *stats;
	struct fc_frame_header *fh;
	struct fcoe_crc_eof crc_eof;
	struct fc_frame *fp;
	struct fc_lport *vn_port;
	struct fcoe_port *port;
	u8 *mac = NULL;
	u8 *dest_mac = NULL;
	struct fcoe_hdr *hp;

	fr = fcoe_dev_from_skb(skb);
	lport = fr->fr_dev;
	if (unlikely(lport == NULL)) {
		printk(KERN_ERR PFX "Invalid lport struct\n");
		kfree_skb(skb);
		return;
	}

	if (skb_is_nonlinear(skb))
		skb_linearize(skb);
	mac = eth_hdr(skb)->h_source;
	dest_mac = eth_hdr(skb)->h_dest;

	/* Pull the header */
	hp = (struct fcoe_hdr *) skb_network_header(skb);
	fh = (struct fc_frame_header *) skb_transport_header(skb);
	skb_pull(skb, sizeof(struct fcoe_hdr));
	fr_len = skb->len - sizeof(struct fcoe_crc_eof);

	stats = per_cpu_ptr(lport->stats, get_cpu());
	stats->RxFrames++;
	stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;

	fp = (struct fc_frame *)skb;
	fc_frame_init(fp);
	fr_dev(fp) = lport;
	fr_sof(fp) = hp->fcoe_sof;
	if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
		put_cpu();
		kfree_skb(skb);
		return;
	}
	fr_eof(fp) = crc_eof.fcoe_eof;
	fr_crc(fp) = crc_eof.fcoe_crc32;
	if (pskb_trim(skb, fr_len)) {
		put_cpu();
		kfree_skb(skb);
		return;
	}

	fh = fc_frame_header_get(fp);

	vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
	if (vn_port) {
		port = lport_priv(vn_port);
		if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
			BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
			put_cpu();
			kfree_skb(skb);
			return;
		}
	}
	if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
	    fh->fh_type == FC_TYPE_FCP) {
		/* Drop FCP data. We dont this in L2 path */
		put_cpu();
		kfree_skb(skb);
		return;
	}
	if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
	    fh->fh_type == FC_TYPE_ELS) {
		switch (fc_frame_payload_op(fp)) {
		case ELS_LOGO:
			if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
				/* drop non-FIP LOGO */
				put_cpu();
				kfree_skb(skb);
				return;
			}
			break;
		}
	}

	if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
		/* Drop incoming ABTS */
		put_cpu();
		kfree_skb(skb);
		return;
	}

	if (le32_to_cpu(fr_crc(fp)) !=
			~crc32(~0, skb->data, fr_len)) {
		if (stats->InvalidCRCCount < 5)
			printk(KERN_WARNING PFX "dropping frame with "
			       "CRC error\n");
		stats->InvalidCRCCount++;
		put_cpu();
		kfree_skb(skb);
		return;
	}
	put_cpu();
	fc_exch_recv(lport, fp);
}

/**
 * bnx2fc_percpu_io_thread - thread per cpu for ios
 *
 * @arg:	ptr to bnx2fc_percpu_info structure
 */
int bnx2fc_percpu_io_thread(void *arg)
{
	struct bnx2fc_percpu_s *p = arg;
	struct bnx2fc_work *work, *tmp;
	LIST_HEAD(work_list);

	set_user_nice(current, MIN_NICE);
	set_current_state(TASK_INTERRUPTIBLE);
	while (!kthread_should_stop()) {
		schedule();
		spin_lock_bh(&p->fp_work_lock);
		while (!list_empty(&p->work_list)) {
			list_splice_init(&p->work_list, &work_list);
			spin_unlock_bh(&p->fp_work_lock);

			list_for_each_entry_safe(work, tmp, &work_list, list) {
				list_del_init(&work->list);
				bnx2fc_process_cq_compl(work->tgt, work->wqe);
				kfree(work);
			}

			spin_lock_bh(&p->fp_work_lock);
		}
		__set_current_state(TASK_INTERRUPTIBLE);
		spin_unlock_bh(&p->fp_work_lock);
	}
	__set_current_state(TASK_RUNNING);

	return 0;
}

static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
{
	struct fc_host_statistics *bnx2fc_stats;
	struct fc_lport *lport = shost_priv(shost);
	struct fcoe_port *port = lport_priv(lport);
	struct bnx2fc_interface *interface = port->priv;
	struct bnx2fc_hba *hba = interface->hba;
	struct fcoe_statistics_params *fw_stats;
	int rc = 0;

	fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
	if (!fw_stats)
		return NULL;

	bnx2fc_stats = fc_get_host_stats(shost);

	init_completion(&hba->stat_req_done);
	if (bnx2fc_send_stat_req(hba))
		return bnx2fc_stats;
	rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
	if (!rc) {
		BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
		return bnx2fc_stats;
	}
	BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
	bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
	BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
	bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
	BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
	bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
	BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
	bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
	BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
	bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);

	bnx2fc_stats->dumped_frames = 0;
	bnx2fc_stats->lip_count = 0;
	bnx2fc_stats->nos_count = 0;
	bnx2fc_stats->loss_of_sync_count = 0;
	bnx2fc_stats->loss_of_signal_count = 0;
	bnx2fc_stats->prim_seq_protocol_err_count = 0;

	memcpy(&hba->prev_stats, hba->stats_buffer,
	       sizeof(struct fcoe_statistics_params));
	return bnx2fc_stats;
}

static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
{
	struct fcoe_port *port = lport_priv(lport);
	struct bnx2fc_interface *interface = port->priv;
	struct bnx2fc_hba *hba = interface->hba;
	struct Scsi_Host *shost = lport->host;
	int rc = 0;

	shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
	shost->max_lun = BNX2FC_MAX_LUN;
	shost->max_id = BNX2FC_MAX_FCP_TGT;
	shost->max_channel = 0;
	if (lport->vport)
		shost->transportt = bnx2fc_vport_xport_template;
	else
		shost->transportt = bnx2fc_transport_template;

	/* Add the new host to SCSI-ml */
	rc = scsi_add_host(lport->host, dev);
	if (rc) {
		printk(KERN_ERR PFX "Error on scsi_add_host\n");
		return rc;
	}
	if (!lport->vport)
		fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
	snprintf(fc_host_symbolic_name(lport->host), 256,
		 "%s (Broadcom %s) v%s over %s",
		BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
		interface->netdev->name);

	return 0;
}

static int bnx2fc_link_ok(struct fc_lport *lport)
{
	struct fcoe_port *port = lport_priv(lport);
	struct bnx2fc_interface *interface = port->priv;
	struct bnx2fc_hba *hba = interface->hba;
	struct net_device *dev = hba->phys_dev;
	int rc = 0;

	if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
		clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
	else {
		set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
		rc = -1;
	}
	return rc;
}

/**
 * bnx2fc_get_link_state - get network link state
 *
 * @hba:	adapter instance pointer
 *
 * updates adapter structure flag based on netdev state
 */
void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
{
	if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
		set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
	else
		clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
}

static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
{
	struct bnx2fc_hba *hba;
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	struct fcoe_port *port;
	u64 wwnn, wwpn;

	port = lport_priv(lport);
	interface = port->priv;
	ctlr = bnx2fc_to_ctlr(interface);
	hba = interface->hba;

	/* require support for get_pauseparam ethtool op. */
	if (!hba->phys_dev->ethtool_ops ||
	    !hba->phys_dev->ethtool_ops->get_pauseparam)
		return -EOPNOTSUPP;

	if (fc_set_mfs(lport, BNX2FC_MFS))
		return -EINVAL;

	skb_queue_head_init(&port->fcoe_pending_queue);
	port->fcoe_pending_queue_active = 0;
	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);

	fcoe_link_speed_update(lport);

	if (!lport->vport) {
		if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
			wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
						 1, 0);
		BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
		fc_set_wwnn(lport, wwnn);

		if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
			wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
						 2, 0);

		BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
		fc_set_wwpn(lport, wwpn);
	}

	return 0;
}

static void bnx2fc_destroy_timer(unsigned long data)
{
	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;

	printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
	       "Destroy compl not received!!\n");
	set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
	wake_up_interruptible(&hba->destroy_wait);
}

/**
 * bnx2fc_indicate_netevent - Generic netdev event handler
 *
 * @context:	adapter structure pointer
 * @event:	event type
 * @vlan_id:	vlan id - associated vlan id with this event
 *
 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 */
static void bnx2fc_indicate_netevent(void *context, unsigned long event,
				     u16 vlan_id)
{
	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
	struct fcoe_ctlr_device *cdev;
	struct fc_lport *lport;
	struct fc_lport *vport;
	struct bnx2fc_interface *interface, *tmp;
	struct fcoe_ctlr *ctlr;
	int wait_for_upload = 0;
	u32 link_possible = 1;

	if (vlan_id != 0 && event != NETDEV_UNREGISTER)
		return;

	switch (event) {
	case NETDEV_UP:
		if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
			printk(KERN_ERR "indicate_netevent: "\
					"hba is not UP!!\n");
		break;

	case NETDEV_DOWN:
		clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
		clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
		link_possible = 0;
		break;

	case NETDEV_GOING_DOWN:
		set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
		link_possible = 0;
		break;

	case NETDEV_CHANGE:
		break;

	case NETDEV_UNREGISTER:
		if (!vlan_id)
			return;
		mutex_lock(&bnx2fc_dev_lock);
		list_for_each_entry_safe(interface, tmp, &if_list, list) {
			if (interface->hba == hba &&
			    interface->vlan_id == (vlan_id & VLAN_VID_MASK))
				__bnx2fc_destroy(interface);
		}
		mutex_unlock(&bnx2fc_dev_lock);

		/* Ensure ALL destroy work has been completed before return */
		flush_workqueue(bnx2fc_wq);
		return;

	default:
		printk(KERN_ERR PFX "Unknown netevent %ld", event);
		return;
	}

	mutex_lock(&bnx2fc_dev_lock);
	list_for_each_entry(interface, &if_list, list) {

		if (interface->hba != hba)
			continue;

		ctlr = bnx2fc_to_ctlr(interface);
		lport = ctlr->lp;
		BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
				interface->netdev->name, event);

		fcoe_link_speed_update(lport);

		cdev = fcoe_ctlr_to_ctlr_dev(ctlr);

		if (link_possible && !bnx2fc_link_ok(lport)) {
			switch (cdev->enabled) {
			case FCOE_CTLR_DISABLED:
				pr_info("Link up while interface is disabled.\n");
				break;
			case FCOE_CTLR_ENABLED:
			case FCOE_CTLR_UNUSED:
				/* Reset max recv frame size to default */
				fc_set_mfs(lport, BNX2FC_MFS);
				/*
				 * ctlr link up will only be handled during
				 * enable to avoid sending discovery
				 * solicitation on a stale vlan
				 */
				if (interface->enabled)
					fcoe_ctlr_link_up(ctlr);
			};
		} else if (fcoe_ctlr_link_down(ctlr)) {
			switch (cdev->enabled) {
			case FCOE_CTLR_DISABLED:
				pr_info("Link down while interface is disabled.\n");
				break;
			case FCOE_CTLR_ENABLED:
			case FCOE_CTLR_UNUSED:
				mutex_lock(&lport->lp_mutex);
				list_for_each_entry(vport, &lport->vports, list)
					fc_host_port_type(vport->host) =
					FC_PORTTYPE_UNKNOWN;
				mutex_unlock(&lport->lp_mutex);
				fc_host_port_type(lport->host) =
					FC_PORTTYPE_UNKNOWN;
				per_cpu_ptr(lport->stats,
					    get_cpu())->LinkFailureCount++;
				put_cpu();
				fcoe_clean_pending_queue(lport);
				wait_for_upload = 1;
			};
		}
	}
	mutex_unlock(&bnx2fc_dev_lock);

	if (wait_for_upload) {
		clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
		init_waitqueue_head(&hba->shutdown_wait);
		BNX2FC_MISC_DBG("indicate_netevent "
				"num_ofld_sess = %d\n",
				hba->num_ofld_sess);
		hba->wait_for_link_down = 1;
		wait_event_interruptible(hba->shutdown_wait,
					 (hba->num_ofld_sess == 0));
		BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
				hba->num_ofld_sess);
		hba->wait_for_link_down = 0;

		if (signal_pending(current))
			flush_signals(current);
	}
}

static int bnx2fc_libfc_config(struct fc_lport *lport)
{

	/* Set the function pointers set by bnx2fc driver */
	memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
		sizeof(struct libfc_function_template));
	fc_elsct_init(lport);
	fc_exch_init(lport);
	fc_rport_init(lport);
	fc_disc_init(lport);
	fc_disc_config(lport, lport);
	return 0;
}

static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
{
	int fcoe_min_xid, fcoe_max_xid;

	fcoe_min_xid = hba->max_xid + 1;
	if (nr_cpu_ids <= 2)
		fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
	else
		fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
	if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
			       fcoe_max_xid, NULL)) {
		printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
		return -ENOMEM;
	}

	return 0;
}

static int bnx2fc_lport_config(struct fc_lport *lport)
{
	lport->link_up = 0;
	lport->qfull = 0;
	lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
	lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
	lport->e_d_tov = 2 * 1000;
	lport->r_a_tov = 10 * 1000;

	lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
				FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
	lport->does_npiv = 1;

	memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
	lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;

	/* alloc stats structure */
	if (fc_lport_init_stats(lport))
		return -ENOMEM;

	/* Finish fc_lport configuration */
	fc_lport_config(lport);

	return 0;
}

/**
 * bnx2fc_fip_recv - handle a received FIP frame.
 *
 * @skb: the received skb
 * @dev: associated &net_device
 * @ptype: the &packet_type structure which was used to register this handler.
 * @orig_dev: original receive &net_device, in case @ dev is a bond.
 *
 * Returns: 0 for success
 */
static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
			   struct packet_type *ptype,
			   struct net_device *orig_dev)
{
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	interface = container_of(ptype, struct bnx2fc_interface,
				 fip_packet_type);
	ctlr = bnx2fc_to_ctlr(interface);
	fcoe_ctlr_recv(ctlr, skb);
	return 0;
}

/**
 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
 *
 * @fip: FCoE controller.
 * @old: Unicast MAC address to delete if the MAC is non-zero.
 * @new: Unicast MAC address to add.
 *
 * Remove any previously-set unicast MAC filter.
 * Add secondary FCoE MAC address filter for our OUI.
 */
static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
{
	struct fcoe_port *port = lport_priv(lport);

	memcpy(port->data_src_addr, addr, ETH_ALEN);
}

/**
 * bnx2fc_get_src_mac - return the ethernet source address for an lport
 *
 * @lport: libfc port
 */
static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
{
	struct fcoe_port *port;

	port = (struct fcoe_port *)lport_priv(lport);
	return port->data_src_addr;
}

/**
 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
 *
 * @fip: FCoE controller.
 * @skb: FIP Packet.
 */
static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
{
	skb->dev = bnx2fc_from_ctlr(fip)->netdev;
	dev_queue_xmit(skb);
}

static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
{
	struct Scsi_Host *shost = vport_to_shost(vport);
	struct fc_lport *n_port = shost_priv(shost);
	struct fcoe_port *port = lport_priv(n_port);
	struct bnx2fc_interface *interface = port->priv;
	struct net_device *netdev = interface->netdev;
	struct fc_lport *vn_port;
	int rc;
	char buf[32];

	rc = fcoe_validate_vport_create(vport);
	if (rc) {
		fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
		printk(KERN_ERR PFX "Failed to create vport, "
		       "WWPN (0x%s) already exists\n",
		       buf);
		return rc;
	}

	if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
		printk(KERN_ERR PFX "vn ports cannot be created on"
			"this interface\n");
		return -EIO;
	}
	rtnl_lock();
	mutex_lock(&bnx2fc_dev_lock);
	vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();

	if (IS_ERR(vn_port)) {
		printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
			netdev->name);
		return -EIO;
	}

	if (disabled) {
		fc_vport_set_state(vport, FC_VPORT_DISABLED);
	} else {
		vn_port->boot_time = jiffies;
		fc_lport_init(vn_port);
		fc_fabric_login(vn_port);
		fc_vport_setlink(vn_port);
	}
	return 0;
}

static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
{
	struct bnx2fc_lport *blport, *tmp;

	spin_lock_bh(&hba->hba_lock);
	list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
		if (blport->lport == lport) {
			list_del(&blport->list);
			kfree(blport);
		}
	}
	spin_unlock_bh(&hba->hba_lock);
}

static int bnx2fc_vport_destroy(struct fc_vport *vport)
{
	struct Scsi_Host *shost = vport_to_shost(vport);
	struct fc_lport *n_port = shost_priv(shost);
	struct fc_lport *vn_port = vport->dd_data;
	struct fcoe_port *port = lport_priv(vn_port);
	struct bnx2fc_interface *interface = port->priv;
	struct fc_lport *v_port;
	bool found = false;

	mutex_lock(&n_port->lp_mutex);
	list_for_each_entry(v_port, &n_port->vports, list)
		if (v_port->vport == vport) {
			found = true;
			break;
		}

	if (!found) {
		mutex_unlock(&n_port->lp_mutex);
		return -ENOENT;
	}
	list_del(&vn_port->list);
	mutex_unlock(&n_port->lp_mutex);
	bnx2fc_free_vport(interface->hba, port->lport);
	bnx2fc_port_shutdown(port->lport);
	bnx2fc_interface_put(interface);
	queue_work(bnx2fc_wq, &port->destroy_work);
	return 0;
}

static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
{
	struct fc_lport *lport = vport->dd_data;

	if (disable) {
		fc_vport_set_state(vport, FC_VPORT_DISABLED);
		fc_fabric_logoff(lport);
	} else {
		lport->boot_time = jiffies;
		fc_fabric_login(lport);
		fc_vport_setlink(lport);
	}
	return 0;
}


static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
{
	struct net_device *netdev = interface->netdev;
	struct net_device *physdev = interface->hba->phys_dev;
	struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
	struct netdev_hw_addr *ha;
	int sel_san_mac = 0;

	/* setup Source MAC Address */
	rcu_read_lock();
	for_each_dev_addr(physdev, ha) {
		BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
				ha->type);
		printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
				ha->addr[1], ha->addr[2], ha->addr[3],
				ha->addr[4], ha->addr[5]);

		if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
		    (is_valid_ether_addr(ha->addr))) {
			memcpy(ctlr->ctl_src_addr, ha->addr,
			       ETH_ALEN);
			sel_san_mac = 1;
			BNX2FC_MISC_DBG("Found SAN MAC\n");
		}
	}
	rcu_read_unlock();

	if (!sel_san_mac)
		return -ENODEV;

	interface->fip_packet_type.func = bnx2fc_fip_recv;
	interface->fip_packet_type.type = htons(ETH_P_FIP);
	interface->fip_packet_type.dev = netdev;
	dev_add_pack(&interface->fip_packet_type);

	interface->fcoe_packet_type.func = bnx2fc_rcv;
	interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
	interface->fcoe_packet_type.dev = netdev;
	dev_add_pack(&interface->fcoe_packet_type);

	return 0;
}

static int bnx2fc_attach_transport(void)
{
	bnx2fc_transport_template =
		fc_attach_transport(&bnx2fc_transport_function);

	if (bnx2fc_transport_template == NULL) {
		printk(KERN_ERR PFX "Failed to attach FC transport\n");
		return -ENODEV;
	}

	bnx2fc_vport_xport_template =
		fc_attach_transport(&bnx2fc_vport_xport_function);
	if (bnx2fc_vport_xport_template == NULL) {
		printk(KERN_ERR PFX
		       "Failed to attach FC transport for vport\n");
		fc_release_transport(bnx2fc_transport_template);
		bnx2fc_transport_template = NULL;
		return -ENODEV;
	}
	return 0;
}
static void bnx2fc_release_transport(void)
{
	fc_release_transport(bnx2fc_transport_template);
	fc_release_transport(bnx2fc_vport_xport_template);
	bnx2fc_transport_template = NULL;
	bnx2fc_vport_xport_template = NULL;
}

static void bnx2fc_interface_release(struct kref *kref)
{
	struct fcoe_ctlr_device *ctlr_dev;
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	struct net_device *netdev;

	interface = container_of(kref, struct bnx2fc_interface, kref);
	BNX2FC_MISC_DBG("Interface is being released\n");

	ctlr = bnx2fc_to_ctlr(interface);
	ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
	netdev = interface->netdev;

	/* tear-down FIP controller */
	if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
		fcoe_ctlr_destroy(ctlr);

	fcoe_ctlr_device_delete(ctlr_dev);

	dev_put(netdev);
	module_put(THIS_MODULE);
}

static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
{
	kref_get(&interface->kref);
}

static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
{
	kref_put(&interface->kref, bnx2fc_interface_release);
}
static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
{
	/* Free the command manager */
	if (hba->cmd_mgr) {
		bnx2fc_cmd_mgr_free(hba->cmd_mgr);
		hba->cmd_mgr = NULL;
	}
	kfree(hba->tgt_ofld_list);
	bnx2fc_unbind_pcidev(hba);
	kfree(hba);
}

/**
 * bnx2fc_hba_create - create a new bnx2fc hba
 *
 * @cnic:	pointer to cnic device
 *
 * Creates a new FCoE hba on the given device.
 *
 */
static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
{
	struct bnx2fc_hba *hba;
	struct fcoe_capabilities *fcoe_cap;
	int rc;

	hba = kzalloc(sizeof(*hba), GFP_KERNEL);
	if (!hba) {
		printk(KERN_ERR PFX "Unable to allocate hba structure\n");
		return NULL;
	}
	spin_lock_init(&hba->hba_lock);
	mutex_init(&hba->hba_mutex);

	hba->cnic = cnic;

	hba->max_tasks = cnic->max_fcoe_exchanges;
	hba->elstm_xids = (hba->max_tasks / 2);
	hba->max_outstanding_cmds = hba->elstm_xids;
	hba->max_xid = (hba->max_tasks - 1);

	rc = bnx2fc_bind_pcidev(hba);
	if (rc) {
		printk(KERN_ERR PFX "create_adapter:  bind error\n");
		goto bind_err;
	}
	hba->phys_dev = cnic->netdev;
	hba->next_conn_id = 0;

	hba->tgt_ofld_list =
		kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
			GFP_KERNEL);
	if (!hba->tgt_ofld_list) {
		printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
		goto tgtofld_err;
	}

	hba->num_ofld_sess = 0;

	hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
	if (!hba->cmd_mgr) {
		printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
		goto cmgr_err;
	}
	fcoe_cap = &hba->fcoe_cap;

	fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
					FCOE_IOS_PER_CONNECTION_SHIFT;
	fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
					FCOE_LOGINS_PER_PORT_SHIFT;
	fcoe_cap->capability2 = hba->max_outstanding_cmds <<
					FCOE_NUMBER_OF_EXCHANGES_SHIFT;
	fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
					FCOE_NPIV_WWN_PER_PORT_SHIFT;
	fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
					FCOE_TARGETS_SUPPORTED_SHIFT;
	fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
					FCOE_OUTSTANDING_COMMANDS_SHIFT;
	fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;

	init_waitqueue_head(&hba->shutdown_wait);
	init_waitqueue_head(&hba->destroy_wait);
	INIT_LIST_HEAD(&hba->vports);

	return hba;

cmgr_err:
	kfree(hba->tgt_ofld_list);
tgtofld_err:
	bnx2fc_unbind_pcidev(hba);
bind_err:
	kfree(hba);
	return NULL;
}

struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
				      struct net_device *netdev,
				      enum fip_state fip_mode)
{
	struct fcoe_ctlr_device *ctlr_dev;
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	int size;
	int rc = 0;

	size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
	ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
					 size);
	if (!ctlr_dev) {
		printk(KERN_ERR PFX "Unable to allocate interface structure\n");
		return NULL;
	}
	ctlr = fcoe_ctlr_device_priv(ctlr_dev);
	ctlr->cdev = ctlr_dev;
	interface = fcoe_ctlr_priv(ctlr);
	dev_hold(netdev);
	kref_init(&interface->kref);
	interface->hba = hba;
	interface->netdev = netdev;

	/* Initialize FIP */
	fcoe_ctlr_init(ctlr, fip_mode);
	ctlr->send = bnx2fc_fip_send;
	ctlr->update_mac = bnx2fc_update_src_mac;
	ctlr->get_src_addr = bnx2fc_get_src_mac;
	set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);

	rc = bnx2fc_interface_setup(interface);
	if (!rc)
		return interface;

	fcoe_ctlr_destroy(ctlr);
	dev_put(netdev);
	fcoe_ctlr_device_delete(ctlr_dev);
	return NULL;
}

/**
 * bnx2fc_if_create - Create FCoE instance on a given interface
 *
 * @interface:	FCoE interface to create a local port on
 * @parent:	Device pointer to be the parent in sysfs for the SCSI host
 * @npiv:	Indicates if the port is vport or not
 *
 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
 *
 * Returns:	Allocated fc_lport or an error pointer
 */
static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
				  struct device *parent, int npiv)
{
	struct fcoe_ctlr        *ctlr = bnx2fc_to_ctlr(interface);
	struct fc_lport		*lport, *n_port;
	struct fcoe_port	*port;
	struct Scsi_Host	*shost;
	struct fc_vport		*vport = dev_to_vport(parent);
	struct bnx2fc_lport	*blport;
	struct bnx2fc_hba	*hba = interface->hba;
	int			rc = 0;

	blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
	if (!blport) {
		BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
		return NULL;
	}

	/* Allocate Scsi_Host structure */
	bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
	if (!npiv)
		lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
	else
		lport = libfc_vport_create(vport, sizeof(*port));

	if (!lport) {
		printk(KERN_ERR PFX "could not allocate scsi host structure\n");
		goto free_blport;
	}
	shost = lport->host;
	port = lport_priv(lport);
	port->lport = lport;
	port->priv = interface;
	port->get_netdev = bnx2fc_netdev;
	INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);

	/* Configure fcoe_port */
	rc = bnx2fc_lport_config(lport);
	if (rc)
		goto lp_config_err;

	if (npiv) {
		printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
			vport->node_name, vport->port_name);
		fc_set_wwnn(lport, vport->node_name);
		fc_set_wwpn(lport, vport->port_name);
	}
	/* Configure netdev and networking properties of the lport */
	rc = bnx2fc_net_config(lport, interface->netdev);
	if (rc) {
		printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
		goto lp_config_err;
	}

	rc = bnx2fc_shost_config(lport, parent);
	if (rc) {
		printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
			interface->netdev->name);
		goto lp_config_err;
	}

	/* Initialize the libfc library */
	rc = bnx2fc_libfc_config(lport);
	if (rc) {
		printk(KERN_ERR PFX "Couldnt configure libfc\n");
		goto shost_err;
	}
	fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;

	/* Allocate exchange manager */
	if (!npiv)
		rc = bnx2fc_em_config(lport, hba);
	else {
		shost = vport_to_shost(vport);
		n_port = shost_priv(shost);
		rc = fc_exch_mgr_list_clone(n_port, lport);
	}

	if (rc) {
		printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
		goto shost_err;
	}

	bnx2fc_interface_get(interface);

	spin_lock_bh(&hba->hba_lock);
	blport->lport = lport;
	list_add_tail(&blport->list, &hba->vports);
	spin_unlock_bh(&hba->hba_lock);

	return lport;

shost_err:
	scsi_remove_host(shost);
lp_config_err:
	scsi_host_put(lport->host);
free_blport:
	kfree(blport);
	return NULL;
}

static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
{
	/* Dont listen for Ethernet packets anymore */
	__dev_remove_pack(&interface->fcoe_packet_type);
	__dev_remove_pack(&interface->fip_packet_type);
	synchronize_net();
}

static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
{
	struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
	struct fc_lport *lport = ctlr->lp;
	struct fcoe_port *port = lport_priv(lport);
	struct bnx2fc_hba *hba = interface->hba;

	/* Stop the transmit retry timer */
	del_timer_sync(&port->timer);

	/* Free existing transmit skbs */
	fcoe_clean_pending_queue(lport);

	bnx2fc_net_cleanup(interface);

	bnx2fc_free_vport(hba, lport);
}

static void bnx2fc_if_destroy(struct fc_lport *lport)
{

	/* Free queued packets for the receive thread */
	bnx2fc_clean_rx_queue(lport);

	/* Detach from scsi-ml */
	fc_remove_host(lport->host);
	scsi_remove_host(lport->host);

	/*
	 * Note that only the physical lport will have the exchange manager.
	 * for vports, this function is NOP
	 */
	fc_exch_mgr_free(lport);

	/* Free memory used by statistical counters */
	fc_lport_free_stats(lport);

	/* Release Scsi_Host */
	scsi_host_put(lport->host);
}

static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
{
	struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
	struct fc_lport *lport = ctlr->lp;
	struct fcoe_port *port = lport_priv(lport);

	bnx2fc_interface_cleanup(interface);
	bnx2fc_stop(interface);
	list_del(&interface->list);
	bnx2fc_interface_put(interface);
	queue_work(bnx2fc_wq, &port->destroy_work);
}

/**
 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
 *
 * @buffer: The name of the Ethernet interface to be destroyed
 * @kp:     The associated kernel parameter
 *
 * Called from sysfs.
 *
 * Returns: 0 for success
 */
static int bnx2fc_destroy(struct net_device *netdev)
{
	struct bnx2fc_interface *interface = NULL;
	struct workqueue_struct *timer_work_queue;
	struct fcoe_ctlr *ctlr;
	int rc = 0;

	rtnl_lock();
	mutex_lock(&bnx2fc_dev_lock);

	interface = bnx2fc_interface_lookup(netdev);
	ctlr = bnx2fc_to_ctlr(interface);
	if (!interface || !ctlr->lp) {
		rc = -ENODEV;
		printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
		goto netdev_err;
	}

	timer_work_queue = interface->timer_work_queue;
	__bnx2fc_destroy(interface);
	destroy_workqueue(timer_work_queue);

netdev_err:
	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();
	return rc;
}

static void bnx2fc_destroy_work(struct work_struct *work)
{
	struct fcoe_port *port;
	struct fc_lport *lport;

	port = container_of(work, struct fcoe_port, destroy_work);
	lport = port->lport;

	BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");

	bnx2fc_if_destroy(lport);
}

static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
{
	bnx2fc_free_fw_resc(hba);
	bnx2fc_free_task_ctx(hba);
}

/**
 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
 *			pci structure
 *
 * @hba:		Adapter instance
 */
static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
{
	if (bnx2fc_setup_task_ctx(hba))
		goto mem_err;

	if (bnx2fc_setup_fw_resc(hba))
		goto mem_err;

	return 0;
mem_err:
	bnx2fc_unbind_adapter_devices(hba);
	return -ENOMEM;
}

static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
{
	struct cnic_dev *cnic;
	struct pci_dev *pdev;

	if (!hba->cnic) {
		printk(KERN_ERR PFX "cnic is NULL\n");
		return -ENODEV;
	}
	cnic = hba->cnic;
	pdev = hba->pcidev = cnic->pcidev;
	if (!hba->pcidev)
		return -ENODEV;

	switch (pdev->device) {
	case PCI_DEVICE_ID_NX2_57710:
		strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
		break;
	case PCI_DEVICE_ID_NX2_57711:
		strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
		break;
	case PCI_DEVICE_ID_NX2_57712:
	case PCI_DEVICE_ID_NX2_57712_MF:
	case PCI_DEVICE_ID_NX2_57712_VF:
		strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
		break;
	case PCI_DEVICE_ID_NX2_57800:
	case PCI_DEVICE_ID_NX2_57800_MF:
	case PCI_DEVICE_ID_NX2_57800_VF:
		strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
		break;
	case PCI_DEVICE_ID_NX2_57810:
	case PCI_DEVICE_ID_NX2_57810_MF:
	case PCI_DEVICE_ID_NX2_57810_VF:
		strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
		break;
	case PCI_DEVICE_ID_NX2_57840:
	case PCI_DEVICE_ID_NX2_57840_MF:
	case PCI_DEVICE_ID_NX2_57840_VF:
	case PCI_DEVICE_ID_NX2_57840_2_20:
	case PCI_DEVICE_ID_NX2_57840_4_10:
		strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
		break;
	default:
		pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
		break;
	}
	pci_dev_get(hba->pcidev);
	return 0;
}

static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
{
	if (hba->pcidev) {
		hba->chip_num[0] = '\0';
		pci_dev_put(hba->pcidev);
	}
	hba->pcidev = NULL;
}

/**
 * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
 *
 * @handle:    transport handle pointing to adapter struture
 */
static int bnx2fc_ulp_get_stats(void *handle)
{
	struct bnx2fc_hba *hba = handle;
	struct cnic_dev *cnic;
	struct fcoe_stats_info *stats_addr;

	if (!hba)
		return -EINVAL;

	cnic = hba->cnic;
	stats_addr = &cnic->stats_addr->fcoe_stat;
	if (!stats_addr)
		return -EINVAL;

	strncpy(stats_addr->version, BNX2FC_VERSION,
		sizeof(stats_addr->version));
	stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
	stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;

	return 0;
}


/**
 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
 *
 * @handle:	transport handle pointing to adapter structure
 *
 * This function maps adapter structure to pcidev structure and initiates
 *	firmware handshake to enable/initialize on-chip FCoE components.
 *	This bnx2fc - cnic interface api callback is used after following
 *	conditions are met -
 *	a) underlying network interface is up (marked by event NETDEV_UP
 *		from netdev
 *	b) bnx2fc adatper structure is registered.
 */
static void bnx2fc_ulp_start(void *handle)
{
	struct bnx2fc_hba *hba = handle;
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	struct fc_lport *lport;

	mutex_lock(&bnx2fc_dev_lock);

	if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
		bnx2fc_fw_init(hba);

	BNX2FC_MISC_DBG("bnx2fc started.\n");

	list_for_each_entry(interface, &if_list, list) {
		if (interface->hba == hba) {
			ctlr = bnx2fc_to_ctlr(interface);
			lport = ctlr->lp;
			/* Kick off Fabric discovery*/
			printk(KERN_ERR PFX "ulp_init: start discovery\n");
			lport->tt.frame_send = bnx2fc_xmit;
			bnx2fc_start_disc(interface);
		}
	}

	mutex_unlock(&bnx2fc_dev_lock);
}

static void bnx2fc_port_shutdown(struct fc_lport *lport)
{
	BNX2FC_MISC_DBG("Entered %s\n", __func__);
	fc_fabric_logoff(lport);
	fc_lport_destroy(lport);
}

static void bnx2fc_stop(struct bnx2fc_interface *interface)
{
	struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
	struct fc_lport *lport;
	struct fc_lport *vport;

	if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
		return;

	lport = ctlr->lp;
	bnx2fc_port_shutdown(lport);

	mutex_lock(&lport->lp_mutex);
	list_for_each_entry(vport, &lport->vports, list)
		fc_host_port_type(vport->host) =
					FC_PORTTYPE_UNKNOWN;
	mutex_unlock(&lport->lp_mutex);
	fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
	fcoe_ctlr_link_down(ctlr);
	fcoe_clean_pending_queue(lport);
}

static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
{
#define BNX2FC_INIT_POLL_TIME		(1000 / HZ)
	int rc = -1;
	int i = HZ;

	rc = bnx2fc_bind_adapter_devices(hba);
	if (rc) {
		printk(KERN_ALERT PFX
			"bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
		goto err_out;
	}

	rc = bnx2fc_send_fw_fcoe_init_msg(hba);
	if (rc) {
		printk(KERN_ALERT PFX
			"bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
		goto err_unbind;
	}

	/*
	 * Wait until the adapter init message is complete, and adapter
	 * state is UP.
	 */
	while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
		msleep(BNX2FC_INIT_POLL_TIME);

	if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
		printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
				"Ignoring...\n",
				hba->cnic->netdev->name);
		rc = -1;
		goto err_unbind;
	}


	set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
	return 0;

err_unbind:
	bnx2fc_unbind_adapter_devices(hba);
err_out:
	return rc;
}

static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
{
	if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
		if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
			init_timer(&hba->destroy_timer);
			hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
								jiffies;
			hba->destroy_timer.function = bnx2fc_destroy_timer;
			hba->destroy_timer.data = (unsigned long)hba;
			add_timer(&hba->destroy_timer);
			wait_event_interruptible(hba->destroy_wait,
					test_bit(BNX2FC_FLAG_DESTROY_CMPL,
						 &hba->flags));
			clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
			/* This should never happen */
			if (signal_pending(current))
				flush_signals(current);

			del_timer_sync(&hba->destroy_timer);
		}
		bnx2fc_unbind_adapter_devices(hba);
	}
}

/**
 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
 *
 * @handle:	transport handle pointing to adapter structure
 *
 * Driver checks if adapter is already in shutdown mode, if not start
 *	the shutdown process.
 */
static void bnx2fc_ulp_stop(void *handle)
{
	struct bnx2fc_hba *hba = handle;
	struct bnx2fc_interface *interface;

	printk(KERN_ERR "ULP_STOP\n");

	mutex_lock(&bnx2fc_dev_lock);
	if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
		goto exit;
	list_for_each_entry(interface, &if_list, list) {
		if (interface->hba == hba)
			bnx2fc_stop(interface);
	}
	BUG_ON(hba->num_ofld_sess != 0);

	mutex_lock(&hba->hba_mutex);
	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
	clear_bit(ADAPTER_STATE_GOING_DOWN,
		  &hba->adapter_state);

	clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
	mutex_unlock(&hba->hba_mutex);

	bnx2fc_fw_destroy(hba);
exit:
	mutex_unlock(&bnx2fc_dev_lock);
}

static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
{
	struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
	struct fc_lport *lport;
	int wait_cnt = 0;

	BNX2FC_MISC_DBG("Entered %s\n", __func__);
	/* Kick off FIP/FLOGI */
	if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
		printk(KERN_ERR PFX "Init not done yet\n");
		return;
	}

	lport = ctlr->lp;
	BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");

	if (!bnx2fc_link_ok(lport) && interface->enabled) {
		BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
		fcoe_ctlr_link_up(ctlr);
		fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
		set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
	}

	/* wait for the FCF to be selected before issuing FLOGI */
	while (!ctlr->sel_fcf) {
		msleep(250);
		/* give up after 3 secs */
		if (++wait_cnt > 12)
			break;
	}

	/* Reset max receive frame size to default */
	if (fc_set_mfs(lport, BNX2FC_MFS))
		return;

	fc_lport_init(lport);
	fc_fabric_login(lport);
}


/**
 * bnx2fc_ulp_init - Initialize an adapter instance
 *
 * @dev :	cnic device handle
 * Called from cnic_register_driver() context to initialize all
 *	enumerated cnic devices. This routine allocates adapter structure
 *	and other device specific resources.
 */
static void bnx2fc_ulp_init(struct cnic_dev *dev)
{
	struct bnx2fc_hba *hba;
	int rc = 0;

	BNX2FC_MISC_DBG("Entered %s\n", __func__);
	/* bnx2fc works only when bnx2x is loaded */
	if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
	    (dev->max_fcoe_conn == 0)) {
		printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
				    " flags: %lx fcoe_conn: %d\n",
			dev->netdev->name, dev->flags, dev->max_fcoe_conn);
		return;
	}

	hba = bnx2fc_hba_create(dev);
	if (!hba) {
		printk(KERN_ERR PFX "hba initialization failed\n");
		return;
	}

	/* Add HBA to the adapter list */
	mutex_lock(&bnx2fc_dev_lock);
	list_add_tail(&hba->list, &adapter_list);
	adapter_count++;
	mutex_unlock(&bnx2fc_dev_lock);

	dev->fcoe_cap = &hba->fcoe_cap;
	clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
	rc = dev->register_device(dev, CNIC_ULP_FCOE,
						(void *) hba);
	if (rc)
		printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
	else
		set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
}

/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
{
	struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);

	if (interface->enabled == true) {
		if (!ctlr->lp) {
			pr_err(PFX "__bnx2fc_disable: lport not found\n");
			return -ENODEV;
		} else {
			interface->enabled = false;
			fcoe_ctlr_link_down(ctlr);
			fcoe_clean_pending_queue(ctlr->lp);
		}
	}
	return 0;
}

/**
 * Deperecated: Use bnx2fc_enabled()
 */
static int bnx2fc_disable(struct net_device *netdev)
{
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	int rc = 0;

	rtnl_lock();
	mutex_lock(&bnx2fc_dev_lock);

	interface = bnx2fc_interface_lookup(netdev);
	ctlr = bnx2fc_to_ctlr(interface);

	if (!interface) {
		rc = -ENODEV;
		pr_err(PFX "bnx2fc_disable: interface not found\n");
	} else {
		rc = __bnx2fc_disable(ctlr);
	}
	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();
	return rc;
}

static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
{
	struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);

	if (interface->enabled == false) {
		if (!ctlr->lp) {
			pr_err(PFX "__bnx2fc_enable: lport not found\n");
			return -ENODEV;
		} else if (!bnx2fc_link_ok(ctlr->lp)) {
			fcoe_ctlr_link_up(ctlr);
			interface->enabled = true;
		}
	}
	return 0;
}

/**
 * Deprecated: Use bnx2fc_enabled()
 */
static int bnx2fc_enable(struct net_device *netdev)
{
	struct bnx2fc_interface *interface;
	struct fcoe_ctlr *ctlr;
	int rc = 0;

	rtnl_lock();
	mutex_lock(&bnx2fc_dev_lock);

	interface = bnx2fc_interface_lookup(netdev);
	ctlr = bnx2fc_to_ctlr(interface);
	if (!interface) {
		rc = -ENODEV;
		pr_err(PFX "bnx2fc_enable: interface not found\n");
	} else {
		rc = __bnx2fc_enable(ctlr);
	}

	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();
	return rc;
}

/**
 * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
 * @cdev: The FCoE Controller that is being enabled or disabled
 *
 * fcoe_sysfs will ensure that the state of 'enabled' has
 * changed, so no checking is necessary here. This routine simply
 * calls fcoe_enable or fcoe_disable, both of which are deprecated.
 * When those routines are removed the functionality can be merged
 * here.
 */
static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
{
	struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);

	switch (cdev->enabled) {
	case FCOE_CTLR_ENABLED:
		return __bnx2fc_enable(ctlr);
	case FCOE_CTLR_DISABLED:
		return __bnx2fc_disable(ctlr);
	case FCOE_CTLR_UNUSED:
	default:
		return -ENOTSUPP;
	};
}

enum bnx2fc_create_link_state {
	BNX2FC_CREATE_LINK_DOWN,
	BNX2FC_CREATE_LINK_UP,
};

/**
 * _bnx2fc_create() - Create bnx2fc FCoE interface
 * @netdev  :   The net_device object the Ethernet interface to create on
 * @fip_mode:   The FIP mode for this creation
 * @link_state: The ctlr link state on creation
 *
 * Called from either the libfcoe 'create' module parameter
 * via fcoe_create or from fcoe_syfs's ctlr_create file.
 *
 * libfcoe's 'create' module parameter is deprecated so some
 * consolidation of code can be done when that interface is
 * removed.
 *
 * Returns: 0 for success
 */
static int _bnx2fc_create(struct net_device *netdev,
			  enum fip_state fip_mode,
			  enum bnx2fc_create_link_state link_state)
{
	struct fcoe_ctlr_device *cdev;
	struct fcoe_ctlr *ctlr;
	struct bnx2fc_interface *interface;
	struct bnx2fc_hba *hba;
	struct net_device *phys_dev = netdev;
	struct fc_lport *lport;
	struct ethtool_drvinfo drvinfo;
	int rc = 0;
	int vlan_id = 0;

	BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
	if (fip_mode != FIP_MODE_FABRIC) {
		printk(KERN_ERR "fip mode not FABRIC\n");
		return -EIO;
	}

	rtnl_lock();

	mutex_lock(&bnx2fc_dev_lock);

	if (!try_module_get(THIS_MODULE)) {
		rc = -EINVAL;
		goto mod_err;
	}

	/* obtain physical netdev */
	if (netdev->priv_flags & IFF_802_1Q_VLAN)
		phys_dev = vlan_dev_real_dev(netdev);

	/* verify if the physical device is a netxtreme2 device */
	if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
		memset(&drvinfo, 0, sizeof(drvinfo));
		phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
		if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
			printk(KERN_ERR PFX "Not a netxtreme2 device\n");
			rc = -EINVAL;
			goto netdev_err;
		}
	} else {
		printk(KERN_ERR PFX "unable to obtain drv_info\n");
		rc = -EINVAL;
		goto netdev_err;
	}

	/* obtain interface and initialize rest of the structure */
	hba = bnx2fc_hba_lookup(phys_dev);
	if (!hba) {
		rc = -ENODEV;
		printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
		goto netdev_err;
	}

	if (bnx2fc_interface_lookup(netdev)) {
		rc = -EEXIST;
		goto netdev_err;
	}

	interface = bnx2fc_interface_create(hba, netdev, fip_mode);
	if (!interface) {
		printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
		goto ifput_err;
	}

	if (netdev->priv_flags & IFF_802_1Q_VLAN) {
		vlan_id = vlan_dev_vlan_id(netdev);
		interface->vlan_enabled = 1;
	}

	ctlr = bnx2fc_to_ctlr(interface);
	cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
	interface->vlan_id = vlan_id;

	interface->timer_work_queue =
			create_singlethread_workqueue("bnx2fc_timer_wq");
	if (!interface->timer_work_queue) {
		printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
		rc = -EINVAL;
		goto ifput_err;
	}

	lport = bnx2fc_if_create(interface, &cdev->dev, 0);
	if (!lport) {
		printk(KERN_ERR PFX "Failed to create interface (%s)\n",
			netdev->name);
		rc = -EINVAL;
		goto if_create_err;
	}

	/* Add interface to if_list */
	list_add_tail(&interface->list, &if_list);

	lport->boot_time = jiffies;

	/* Make this master N_port */
	ctlr->lp = lport;

	if (link_state == BNX2FC_CREATE_LINK_UP)
		cdev->enabled = FCOE_CTLR_ENABLED;
	else
		cdev->enabled = FCOE_CTLR_DISABLED;

	if (link_state == BNX2FC_CREATE_LINK_UP &&
	    !bnx2fc_link_ok(lport)) {
		fcoe_ctlr_link_up(ctlr);
		fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
		set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
	}

	BNX2FC_HBA_DBG(lport, "create: START DISC\n");
	bnx2fc_start_disc(interface);

	if (link_state == BNX2FC_CREATE_LINK_UP)
		interface->enabled = true;

	/*
	 * Release from kref_init in bnx2fc_interface_setup, on success
	 * lport should be holding a reference taken in bnx2fc_if_create
	 */
	bnx2fc_interface_put(interface);
	/* put netdev that was held while calling dev_get_by_name */
	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();
	return 0;

if_create_err:
	destroy_workqueue(interface->timer_work_queue);
ifput_err:
	bnx2fc_net_cleanup(interface);
	bnx2fc_interface_put(interface);
	goto mod_err;
netdev_err:
	module_put(THIS_MODULE);
mod_err:
	mutex_unlock(&bnx2fc_dev_lock);
	rtnl_unlock();
	return rc;
}

/**
 * bnx2fc_create() - Create a bnx2fc interface
 * @netdev  : The net_device object the Ethernet interface to create on
 * @fip_mode: The FIP mode for this creation
 *
 * Called from fcoe transport
 *
 * Returns: 0 for success
 */
static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
{
	return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
}

/**
 * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
 * @netdev: The net_device to be used by the allocated FCoE Controller
 *
 * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
 * in a link_down state. The allows the user an opportunity to configure
 * the FCoE Controller from sysfs before enabling the FCoE Controller.
 *
 * Creating in with this routine starts the FCoE Controller in Fabric
 * mode. The user can change to VN2VN or another mode before enabling.
 */
static int bnx2fc_ctlr_alloc(struct net_device *netdev)
{
	return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
			      BNX2FC_CREATE_LINK_DOWN);
}

/**
 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
 *
 * @cnic:	Pointer to cnic device instance
 *
 **/
static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
{
	struct bnx2fc_hba *hba;

	/* Called with bnx2fc_dev_lock held */
	list_for_each_entry(hba, &adapter_list, list) {
		if (hba->cnic == cnic)
			return hba;
	}
	return NULL;
}

static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
							*netdev)
{
	struct bnx2fc_interface *interface;

	/* Called with bnx2fc_dev_lock held */
	list_for_each_entry(interface, &if_list, list) {
		if (interface->netdev == netdev)
			return interface;
	}
	return NULL;
}

static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
						      *phys_dev)
{
	struct bnx2fc_hba *hba;

	/* Called with bnx2fc_dev_lock held */
	list_for_each_entry(hba, &adapter_list, list) {
		if (hba->phys_dev == phys_dev)
			return hba;
	}
	printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
	return NULL;
}

/**
 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
 *
 * @dev		cnic device handle
 */
static void bnx2fc_ulp_exit(struct cnic_dev *dev)
{
	struct bnx2fc_hba *hba;
	struct bnx2fc_interface *interface, *tmp;

	BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");

	if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
		printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
			dev->netdev->name, dev->flags);
		return;
	}

	mutex_lock(&bnx2fc_dev_lock);
	hba = bnx2fc_find_hba_for_cnic(dev);
	if (!hba) {
		printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
		       dev);
		mutex_unlock(&bnx2fc_dev_lock);
		return;
	}

	list_del_init(&hba->list);
	adapter_count--;

	list_for_each_entry_safe(interface, tmp, &if_list, list)
		/* destroy not called yet, move to quiesced list */
		if (interface->hba == hba)
			__bnx2fc_destroy(interface);
	mutex_unlock(&bnx2fc_dev_lock);

	/* Ensure ALL destroy work has been completed before return */
	flush_workqueue(bnx2fc_wq);

	bnx2fc_ulp_stop(hba);
	/* unregister cnic device */
	if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
		hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
	bnx2fc_hba_destroy(hba);
}

/**
 * bnx2fc_fcoe_reset - Resets the fcoe
 *
 * @shost: shost the reset is from
 *
 * Returns: always 0
 */
static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
{
	struct fc_lport *lport = shost_priv(shost);
	fc_lport_reset(lport);
	return 0;
}


static bool bnx2fc_match(struct net_device *netdev)
{
	struct net_device *phys_dev = netdev;

	mutex_lock(&bnx2fc_dev_lock);
	if (netdev->priv_flags & IFF_802_1Q_VLAN)
		phys_dev = vlan_dev_real_dev(netdev);

	if (bnx2fc_hba_lookup(phys_dev)) {
		mutex_unlock(&bnx2fc_dev_lock);
		return true;
	}

	mutex_unlock(&bnx2fc_dev_lock);
	return false;
}


static struct fcoe_transport bnx2fc_transport = {
	.name = {"bnx2fc"},
	.attached = false,
	.list = LIST_HEAD_INIT(bnx2fc_transport.list),
	.alloc = bnx2fc_ctlr_alloc,
	.match = bnx2fc_match,
	.create = bnx2fc_create,
	.destroy = bnx2fc_destroy,
	.enable = bnx2fc_enable,
	.disable = bnx2fc_disable,
};

/**
 * bnx2fc_percpu_thread_create - Create a receive thread for an
 *				 online CPU
 *
 * @cpu: cpu index for the online cpu
 */
static void bnx2fc_percpu_thread_create(unsigned int cpu)
{
	struct bnx2fc_percpu_s *p;
	struct task_struct *thread;

	p = &per_cpu(bnx2fc_percpu, cpu);

	thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
					(void *)p, cpu_to_node(cpu),
					"bnx2fc_thread/%d", cpu);
	/* bind thread to the cpu */
	if (likely(!IS_ERR(thread))) {
		kthread_bind(thread, cpu);
		p->iothread = thread;
		wake_up_process(thread);
	}
}

static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
{
	struct bnx2fc_percpu_s *p;
	struct task_struct *thread;
	struct bnx2fc_work *work, *tmp;

	BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);

	/* Prevent any new work from being queued for this CPU */
	p = &per_cpu(bnx2fc_percpu, cpu);
	spin_lock_bh(&p->fp_work_lock);
	thread = p->iothread;
	p->iothread = NULL;


	/* Free all work in the list */
	list_for_each_entry_safe(work, tmp, &p->work_list, list) {
		list_del_init(&work->list);
		bnx2fc_process_cq_compl(work->tgt, work->wqe);
		kfree(work);
	}

	spin_unlock_bh(&p->fp_work_lock);

	if (thread)
		kthread_stop(thread);
}

/**
 * bnx2fc_cpu_callback - Handler for CPU hotplug events
 *
 * @nfb:    The callback data block
 * @action: The event triggering the callback
 * @hcpu:   The index of the CPU that the event is for
 *
 * This creates or destroys per-CPU data for fcoe
 *
 * Returns NOTIFY_OK always.
 */
static int bnx2fc_cpu_callback(struct notifier_block *nfb,
			     unsigned long action, void *hcpu)
{
	unsigned cpu = (unsigned long)hcpu;

	switch (action) {
	case CPU_ONLINE:
	case CPU_ONLINE_FROZEN:
		printk(PFX "CPU %x online: Create Rx thread\n", cpu);
		bnx2fc_percpu_thread_create(cpu);
		break;
	case CPU_DEAD:
	case CPU_DEAD_FROZEN:
		printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
		bnx2fc_percpu_thread_destroy(cpu);
		break;
	default:
		break;
	}
	return NOTIFY_OK;
}

/**
 * bnx2fc_mod_init - module init entry point
 *
 * Initialize driver wide global data structures, and register
 * with cnic module
 **/
static int __init bnx2fc_mod_init(void)
{
	struct fcoe_percpu_s *bg;
	struct task_struct *l2_thread;
	int rc = 0;
	unsigned int cpu = 0;
	struct bnx2fc_percpu_s *p;

	printk(KERN_INFO PFX "%s", version);

	/* register as a fcoe transport */
	rc = fcoe_transport_attach(&bnx2fc_transport);
	if (rc) {
		printk(KERN_ERR "failed to register an fcoe transport, check "
			"if libfcoe is loaded\n");
		goto out;
	}

	INIT_LIST_HEAD(&adapter_list);
	INIT_LIST_HEAD(&if_list);
	mutex_init(&bnx2fc_dev_lock);
	adapter_count = 0;

	/* Attach FC transport template */
	rc = bnx2fc_attach_transport();
	if (rc)
		goto detach_ft;

	bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
	if (!bnx2fc_wq) {
		rc = -ENOMEM;
		goto release_bt;
	}

	bg = &bnx2fc_global;
	skb_queue_head_init(&bg->fcoe_rx_list);
	l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
				   (void *)bg,
				   "bnx2fc_l2_thread");
	if (IS_ERR(l2_thread)) {
		rc = PTR_ERR(l2_thread);
		goto free_wq;
	}
	wake_up_process(l2_thread);
	spin_lock_bh(&bg->fcoe_rx_list.lock);
	bg->thread = l2_thread;
	spin_unlock_bh(&bg->fcoe_rx_list.lock);

	for_each_possible_cpu(cpu) {
		p = &per_cpu(bnx2fc_percpu, cpu);
		INIT_LIST_HEAD(&p->work_list);
		spin_lock_init(&p->fp_work_lock);
	}

	cpu_notifier_register_begin();

	for_each_online_cpu(cpu) {
		bnx2fc_percpu_thread_create(cpu);
	}

	/* Initialize per CPU interrupt thread */
	__register_hotcpu_notifier(&bnx2fc_cpu_notifier);

	cpu_notifier_register_done();

	cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);

	return 0;

free_wq:
	destroy_workqueue(bnx2fc_wq);
release_bt:
	bnx2fc_release_transport();
detach_ft:
	fcoe_transport_detach(&bnx2fc_transport);
out:
	return rc;
}

static void __exit bnx2fc_mod_exit(void)
{
	LIST_HEAD(to_be_deleted);
	struct bnx2fc_hba *hba, *next;
	struct fcoe_percpu_s *bg;
	struct task_struct *l2_thread;
	struct sk_buff *skb;
	unsigned int cpu = 0;

	/*
	 * NOTE: Since cnic calls register_driver routine rtnl_lock,
	 * it will have higher precedence than bnx2fc_dev_lock.
	 * unregister_device() cannot be called with bnx2fc_dev_lock
	 * held.
	 */
	mutex_lock(&bnx2fc_dev_lock);
	list_splice(&adapter_list, &to_be_deleted);
	INIT_LIST_HEAD(&adapter_list);
	adapter_count = 0;
	mutex_unlock(&bnx2fc_dev_lock);

	/* Unregister with cnic */
	list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
		list_del_init(&hba->list);
		printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
		       hba);
		bnx2fc_ulp_stop(hba);
		/* unregister cnic device */
		if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
				       &hba->reg_with_cnic))
			hba->cnic->unregister_device(hba->cnic,
							 CNIC_ULP_FCOE);
		bnx2fc_hba_destroy(hba);
	}
	cnic_unregister_driver(CNIC_ULP_FCOE);

	/* Destroy global thread */
	bg = &bnx2fc_global;
	spin_lock_bh(&bg->fcoe_rx_list.lock);
	l2_thread = bg->thread;
	bg->thread = NULL;
	while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
		kfree_skb(skb);

	spin_unlock_bh(&bg->fcoe_rx_list.lock);

	if (l2_thread)
		kthread_stop(l2_thread);

	cpu_notifier_register_begin();

	/* Destroy per cpu threads */
	for_each_online_cpu(cpu) {
		bnx2fc_percpu_thread_destroy(cpu);
	}

	__unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);

	cpu_notifier_register_done();

	destroy_workqueue(bnx2fc_wq);
	/*
	 * detach from scsi transport
	 * must happen after all destroys are done
	 */
	bnx2fc_release_transport();

	/* detach from fcoe transport */
	fcoe_transport_detach(&bnx2fc_transport);
}

module_init(bnx2fc_mod_init);
module_exit(bnx2fc_mod_exit);

static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
	.set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
	.get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
	.get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
	.get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
	.get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
	.get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
	.get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,

	.get_fcoe_fcf_selected = fcoe_fcf_get_selected,
	.get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
};

static struct fc_function_template bnx2fc_transport_function = {
	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,
	.show_host_supported_fc4s = 1,
	.show_host_active_fc4s = 1,
	.show_host_maxframe_size = 1,

	.show_host_port_id = 1,
	.show_host_supported_speeds = 1,
	.get_host_speed = fc_get_host_speed,
	.show_host_speed = 1,
	.show_host_port_type = 1,
	.get_host_port_state = fc_get_host_port_state,
	.show_host_port_state = 1,
	.show_host_symbolic_name = 1,

	.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
				sizeof(struct bnx2fc_rport)),
	.show_rport_maxframe_size = 1,
	.show_rport_supported_classes = 1,

	.show_host_fabric_name = 1,
	.show_starget_node_name = 1,
	.show_starget_port_name = 1,
	.show_starget_port_id = 1,
	.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,
	.get_fc_host_stats = bnx2fc_get_host_stats,

	.issue_fc_host_lip = bnx2fc_fcoe_reset,

	.terminate_rport_io = fc_rport_terminate_io,

	.vport_create = bnx2fc_vport_create,
	.vport_delete = bnx2fc_vport_destroy,
	.vport_disable = bnx2fc_vport_disable,
	.bsg_request = fc_lport_bsg_request,
};

static struct fc_function_template bnx2fc_vport_xport_function = {
	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,
	.show_host_supported_fc4s = 1,
	.show_host_active_fc4s = 1,
	.show_host_maxframe_size = 1,

	.show_host_port_id = 1,
	.show_host_supported_speeds = 1,
	.get_host_speed = fc_get_host_speed,
	.show_host_speed = 1,
	.show_host_port_type = 1,
	.get_host_port_state = fc_get_host_port_state,
	.show_host_port_state = 1,
	.show_host_symbolic_name = 1,

	.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
				sizeof(struct bnx2fc_rport)),
	.show_rport_maxframe_size = 1,
	.show_rport_supported_classes = 1,

	.show_host_fabric_name = 1,
	.show_starget_node_name = 1,
	.show_starget_port_name = 1,
	.show_starget_port_id = 1,
	.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,
	.get_fc_host_stats = fc_get_host_stats,
	.issue_fc_host_lip = bnx2fc_fcoe_reset,
	.terminate_rport_io = fc_rport_terminate_io,
	.bsg_request = fc_lport_bsg_request,
};

/**
 * scsi_host_template structure used while registering with SCSI-ml
 */
static struct scsi_host_template bnx2fc_shost_template = {
	.module			= THIS_MODULE,
	.name			= "Broadcom Offload FCoE Initiator",
	.queuecommand		= bnx2fc_queuecommand,
	.eh_abort_handler	= bnx2fc_eh_abort,	  /* abts */
	.eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
	.eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
	.eh_host_reset_handler	= fc_eh_host_reset,
	.slave_alloc		= fc_slave_alloc,
	.change_queue_depth	= fc_change_queue_depth,
	.change_queue_type	= fc_change_queue_type,
	.this_id		= -1,
	.cmd_per_lun		= 3,
	.use_clustering		= ENABLE_CLUSTERING,
	.sg_tablesize		= BNX2FC_MAX_BDS_PER_CMD,
	.max_sectors		= 1024,
};

static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
	.frame_send		= bnx2fc_xmit,
	.elsct_send		= bnx2fc_elsct_send,
	.fcp_abort_io		= bnx2fc_abort_io,
	.fcp_cleanup		= bnx2fc_cleanup,
	.get_lesb		= fcoe_get_lesb,
	.rport_event_callback	= bnx2fc_rport_event_handler,
};

/**
 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
 *			structure carrying callback function pointers
 */
static struct cnic_ulp_ops bnx2fc_cnic_cb = {
	.owner			= THIS_MODULE,
	.cnic_init		= bnx2fc_ulp_init,
	.cnic_exit		= bnx2fc_ulp_exit,
	.cnic_start		= bnx2fc_ulp_start,
	.cnic_stop		= bnx2fc_ulp_stop,
	.indicate_kcqes		= bnx2fc_indicate_kcqe,
	.indicate_netevent	= bnx2fc_indicate_netevent,
	.cnic_get_stats		= bnx2fc_ulp_get_stats,
};